Problems for Using Diesel Generator Coolant Liquid The use of coolant in diesel generator solves the problems of poor cooling and high temperature of the diesel generating set. Usually, we should replace the cooling liquid every one and a half years to two years. The standard replacement cycle of the cooling liquid will be very helpful for the genset protection. It can form a protective film on the surface of cylinder sleeve of the generator set so as to prevent the occurrence of cavitation and reducing wear and corrosion, which can prolong the maintenance intervals of the genset and reduce the maintenance cost. On the contrary, non-replacement for a long time, it will definitely reduce the using effects. So what problems should be paid attention to in the process of using diesel generator coolant? Diesel Generators can have issues with the cooling systems. Here we offer advice for on site checking of what to check before calling an engineer. Operator’s Maintenance The most important link in the maintenance chain is the engine operator. His daily and weekly checks of the cooling system and reports on any questionable conditions he observes will help prevent engine breakdown on the job and provide valuable information to engine repair people. Each must be recorded and reported as and when they are found. Diesel Generator Checks Before Start-up 1. Water level. 2. Cleanliness of coolant. 3. Radiator cap gasket. 4. Hose and connections for leaks or hose collapse. 5. Engine lubricating oil level. Note Oil level too low or too high will cause overheating and possible loss of the coolant. 6. Check for water in the oil and vice versa. 7. Inspect the fan for bent or damaged blades. 8. Check the belt for tension and condition. 9. Inspect the radiator for bent core fins or accumulation of debris. Check shutters for damage or linkage wear. 10. Check for leaks at the cooler, water pump, or other accessories. Diesel Generator Complaints and Causes Loss of coolant due to external leakage. 1. Leaking pipe plugs, such as core plugs, which seal off coolant passages. 2. Loose clamps, faulty hose and piping. 3. Leaking radiator: Core hole plugs are sometimes loosened by corrosion or vibration. These same conditions, or frozen coolant, can cause core seals to open up. 4. Leaking radiator, de-aeration top tank or surge tank. 5. Leaking gaskets due to improper tightening of cap screws, uneven gasket surfaces or faulty gasket installation. 6. Leaking drain cocks. 7. Leaking water pump: Badly worn or deteriorated seals are the cause of leaks at the pump. Premature failure of the pump seals often results from suspended abrasive materials in the cooling system, or excessive heat from lack of coolant or cavitation. 8. Leaks at engine cylinder head gasket. 9. Leaks at upper cylinder liner counter bore. 10. Leaking engine or auxiliary oil cooler. 11. Leaking air intake after cooler (intake air heater in some cases). 12. Leaking water manifold and/or connections. Loss of Coolant Due to Internal Leakage 1. Leaking engine cylinder head gasket: Coolant passes into the cylinders or the crankcase. 2. Cracked engine cylinder head: Coolant passes into cylinders and is blown out of the exhaust. 3. Deteriorated, severed or chafed liner packing; defective liner packing bore: Coolant passes into the engine crankcase. 4. Improperly seated or defective sleeves: Coolant can pass into the cylinder, crankcase, and, if the heads have cylindrical injectors, coolant can enter the fuel system if it gets past the injector body O-ring. 5. Porous cylinder block or head casting: Coolant can pass into the crank case via holes in the system jacket. If the cylinder heads have internal fuel passages, coolant can enter the fuel system via holes in the wall of the fuel rifle which adjoins coolant passages. 6. Cracked or porous water cooled exhaust manifold and faulty manifold to head mounting gaskets. Coolant passes into the cylinder or out through the exhaust system. 7. Leaking engine or accessory oil cooler: Coolant passes into the oil side of the cooler when the engine is shut down. The reverse almost always occurs when the engine is operating. 8. Leaking engine air intake after cooler or intake air heater: Coolant passes into the cylinders on naturally aspirated engines, also on turbo charged engines when the intake manifold pressure is less than the coolant pressure. Loss of Coolant Due to Overflow 1. Over filled radiator: As the engine reaches normal operating temperatures, the coolant expands, and due to a lack of expansion space, unseats the pressure cap or relief valve, allowing the coolant to pass out through the overflow pipe. This does not occur with a properly designed top tank – expansion space compensates for this. 2. Slush freeze or frozen coolant resulting from insufficient antifreeze in the system or poor mixing of antifreeze and water. 3. Dirt, scale or sludge in the cooling system. 4. Plugged radiator core. 5. Restriction or plugging of fill line due to routing and/or deterioration. 6. Combustion gas entering the cooling system and displacing the coolant causing it to overflow. 7. More water introduced in the area above the baffle than the fill line can handle. 8. Improperly routed or sized fill line. 9. Excessive air intake temperatures. Diesel Generator Engines Overheating 1. Poor circulation of coolant caused by collapsing of soft hose and restriction. 2. Over fuelling the engine. 3. Radiator shutter malfunction or improper adjustment of the thermal controls. 4. Incorrect adjustment or malfunction of variable pitch or modulating fans. 5. Crankcase oil level too high: Crankshaft dips in oil and causes a corresponding increase in temperatures due to friction and parasitic load on the engine. Crankshaft oil dipping can also be encountered when operating an engine beyond the angles for which the oil pan was originally designed. 6. Dirty engine exterior: Heavy accumulations of dirt and grease can severely hinder normal heat dissipation through the exterior walls of all the engine components. 7. Pressure of air in the cooling system: The following are the most common causes of air entrapment:- A. Low coolant level due to leaking water pump or leaks at hose and/or coolant accessories. B. Leaking air intake aftercooler. C. Leaking engine or air compressor cylinder head gasket. D. Improperly seated injector sleeve. 8. Inadequate cooling capacity: This condition can be the result of misapplication of one or any combination of the following cooling system components:- A. Radiator B. Top Tank C. Surge Tank D. Fan E. Fan Shroud F. Water Pump G. Auxiliary Coolers H. Re-circulation Baffles I. Fan Speed 9. After boil: Coolant boils and overflows after the engine is abruptly shutdown following heavy loading. 10. Improper fan belt tension. Coolant Contaminated with Combustion Gases 1. Cracked cylinder head. 2. Blown head gasket. 3. Injector sleeves leaking. Coolant Contaminated with Fuel Oil 1. Injector sleeves leaking. 2. Porous cylinder head casting: The fuel enters the cooling system through holes in the wall of the fuel rifle which adjoins the coolant passages. Diesel Generator -WATER PUMP Coolant Circulates at High Pump Speed Only 1. Badly deteriorated water pump impeller: Impeller damage is primarily caused by corrosion and cavitation erosion. 2. Excessive impeller to body clearance. 3. Loose water pump drive belts. 4. Impeller slipping on the shaft. 5. Cracked impellers. Fan or Water Pump Belts Break Prematurely 1. Foreign material falls in drive. 2. Shock or extreme overloads. 3. Belt damaged on installation by localised stretching. 4. Belts not properly matched. 5. Pulley mis-aligned. 6. Pulley nicked or rough. 7. Guard or shield interfering during operation. Engine Operates Too Hot or Overheats When Loaded and Coolant is Known to be at the Proper Level 1. An altered horsepower rating of an engine or new engine installation which exceeds the original design of the cooling system. 2. Clogged radiator air passages. 3. Damaged radiator core fins. 4. Heat exchanger element which contains heavy lime and scale deposits. 5. Thermostat not opening fully. 6. Fan shrouding missing, damaged, or improperly positioned with respect to the fan. 7. Re-circulation baffles on the sides of the radiator missing or damaged. 8. Fan drive belts slip: Impeller slips on the water pump shaft. 9. Clogged coolant passages, radiator, and engine. 10. Faulty automatic radiator shutters: Shutters only open partially or open too late. 11. Faulty thermatic or modulated fan drive: Fan engages too late or operates too slowly. 12. Faulty variable pitch fan: Fan operates with the blades at an insufficient pitch. Diesel Generator Engine Coolant Temperature Too Low 1. Thermostat stuck in open position, or malfunctions, to allow premature opening. 2. Thermostat seal lip deteriorates and hardens allowing the coolant to bypass the closed thermostat and enter the radiator. 3. Excessive bypassing of coolant to the radiator, with the thermostat closed and properly sealed. 4. Engine is exposed to very low temperatures and high wind with a low load factor. 5. Water through the core due to a leaking de-aeration baffle. Diesel Generator Lack of Temperature Control or indicators? 1. Defective Thermostat: Thermostat fails to open at the proper coolant temperature range and/or does not open completely. 2. Defective Thermostat Seal: Coolant leaks by the seal and onto the water pump; therefore bypassing the radiator. 3. Operating engine having a pressurised cooling system without a pressure cap, with a defective pressure cap or a defective self-contained relief valve. Clogged Water Filter Element 1. Contamination of the coolant caused by soluble oil, engine lube oil, engine fuel, or rust, scale and lime. 2. Contamination of the cooling system with dirty fill or make-up coolant. 3. Use of anti-leak additive. Corrosion, Rust and Scale Build-up Occurs in the Cooling System even after the Water Filter is Serviced Regularly 1. Insufficient water filter capacity. 2. Improper water filter installation. 3. Careless servicing of the water filter. 4. Aeration of the coolant: Free oxygen and carbon dioxide contained in the air are highly corrosive. Coolant selection: Select clean fresh water such as rainwater, tap water and river water. The well water and underground water (Hard water) shouldn’t be used directly, because they contain more minerals, which is easy to form limescale in the water tank of diesel engine, influence the cooling effect and even result in malfunction. If there is only hard water, it must be light softened before using. The softening method usually refers to the boiling method. Boil the water, add 0.67g caustic soda to per liter of water, and use the upper water after precipitation. Cool the diesel engine with seawater is not allow When the diesel engine is used below 0°C, it should prevent the coolant freezing since it may cause the cracking of relevant parts. Therefore, when the diesel engine finishes running, the cooling liquid of each parts should be discharged.For adopting the models of closed cycle cooling system, it can be equipped with appropriate antifreeze coolant according to the local minimum ambient temperature. The formula of commonly used antifreeze coolant is as follows: When equipped with the flammable antifreeze coolant, you should pay attention to fire safety since both ethylene glycol and alcohol are inflammable materials. Before using antifreeze coolant, the dirt in the cooling system should be cleaned to prevent the production of new chemical precipitates, which will affect the cooling effect. For the diesel generator that used the antifreeze coolant, it is not necessary to let out the coolant every time after stopping, but it should be regularly added and check the composition. Do not use 100% antifreeze as coolant If there is much limescale and dirt in the cooling system of diesel engine, clean it with cleaning solution. The cleaning solution can be made from water, soda water(Na2CO3) and water glass (Na2SiO3). Namely, add 40g soda water and 10g water glass to each liter of water. When cleaning, pour the cleaning solution into the cooling water chamber of the diesel engine. Drive the diesel engine to operate, when the outlet water temperature is greater than 60°C, continue to run forabout two hours and then parking, and release the cleaning solution. After the diesel engine is cooled, wash it with clean fresh water for two times, drain and pour into the cooling water and drive the machine to operate again. When the outlet water temperature reached 75°C, parking and release the sewage, after that, inject new cooling water. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements.
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How to Correctly Use Diesel Generator Under Extreme Conditions Due to environmental factors, the operation of diesel generator under the conditions of the high altitude area and the extremely cold climate must adopt corresponding measures. Only in this way can make the diesel generator better care in the process of using or maintaining. The following useful tips will show you how to correctly use diesel generator under extreme conditions. Please continue reading. starlight/stamford/siemens/marathon/engga /KEPU When using the matching diesel engine of the genset manufacturer in the plateau area, especially for the use of the naturally aspirated engine in the plateau area, due to the thin air can’t burn a lot of fuel, which will cause power loss. For the naturally aspirated engine, the power loss will be about 3% if the elevation rises by 300m. Therefore, when working on the plateau, it is suggested to use lower power diesel genset to prevent smoking and the excessive fuel consumption. In the use of the extreme cold weather, it should be increased with auxiliary starting devices such as fuel heater, oil heater, and jacket water heater and so on. By using the fuel oil heater or electric heater, the cooling water, fuel oil and lubricating oil of the cold engine are heated, which makes the whole engine warm up so that it can start smoothly. When the machine room temperature is not less than 4°C, the installation of coolant heater can maintain the temperature of the engine cylinder block above 32°C. In addition, it is recommended to install low temperature alarm of generating set. For the diesel generators that operate at ambient temperature below -18°C, the lubricating oil heater, fuel passage and fuel filter heater are also needed to prevent fuel curing. It is worth noting that the oil heater is installed on the engine oil pan, which heats the oil in the oil pan that is convenient for the diesel engine to start at low temperature. It is recommended to use -10#~-35#light diesel oil. The inlet air preheater is used to heat the mixture (or air) that enter into the cylinder so as to increase the compression terminal temperature and improve the ignition condition. The electric heating preheating method is to install electric heater plug or a heating wire in the inlet air pipe to directly heat the intake air. It does not consume the oxygen in the air, nor does it pollute the intake air, but it consumes the battery energy. In addition, it is recommended to use low temperature lubricating oil that can reduce the viscosity of lubricating oil, improve the fluidity of lubricating oil and reduce the internal friction resistance of liquid. Using high energy batteries, such as the current nickel metal hydride batteries and nickel cadmium batteries, and pay attention to the battery heating or heating insulation. If the machine room temperature drops below 0°C, it should be equipped with battery heater to maintain the battery capacity and output power. Key items to be aware of and tips for successful cold weather generator operation: Check the Engine Block Heater: Always make sure the block heater is plugged into shore power and functional. Without this important heat source, you will usually have immediate problems. If your generator does not have a block heater and you are in a susceptible area for colder weather then you should look into adding one. If you are in a remote location where you are unable to have grid power, consider also getting a small reliable gas generator to simulate the shore and let the block heater run for a few hours before attempting to start the generator up. Engine-Block-Heater1-(3).JPGCheck Battery Charger: Make sure the battery charger is also plugged into the main/shore power and functioning. If the battery is dead, you will be going nowhere fast. This is still a leading cause for generator service calls. Utilize the Manual: The manual will spell out the unique qualities of the generator that fit your application. It should also have a section outlining the service and winter maintenance schedule of your generator. Also note your genset make, model and know where the local dealer is in case of an emergency or to contact for parts and maintenance. Inspect the Generator: Do a visual walk around and make sure debris is not collecting around the generator. Check for leaks, stains, and puddles. Check for other visual clues that may need to be addressed. Perform Basic Maintenance: Have the engine oil changed, spark plugs checked, air filter periodically changed, check the radiator coolant mixture, and as mentioned above always make sure the battery is charged and tested. Test Your Digital Control Panel when Severe Cold Hits: Be aware that certain models sometimes have issues when it gets really cold (sub-zeros temps). Some of these will simply not even turn on and light up and/or you won’t be able to read the gauges. More recent model years do not have this issue but it is something we have seen happen on occasion. Check Exhaust and Ventilation Plan: Make sure proper attachments and visual inspection is done periodically. You can consider adding and/or getting a generator with a snow hood to reduce the amount of snow entry. Understand that louvers/shutters can also affect how cold air enters the system during startup. Hydryolic ones are often best for colder climates so you don't in advertently shock the system with a bunch of freezing air during start up. Check the Fuel: Make sure the fuel in your tank is treated with anti-gel and anti-microbial additives. Gelling from cold temps is not quite as big of a concern as it was in the past, but still something to be worry of. Many fuel providers treat their diesel fuel with some form of anti-gelling component but if you are unsure it will not hurt to add it and be safe. Consider Cold or Winterizing Packs/Kits: Many local generator service companies now offer something along these lines that involves specific fluids and add-on component to protect your generator in colder climates. These help to ensure your odds of starting without a long warm up time and help to reduce overall failure rates from cold weather condition. By understanding all the key variables above, and doing some basic planning, you can easily increase your chances of successfully running and starting your generator next time the ice man drops in. Kindly reminder: For the different purposes and models of the diesel engines, due to its low temperature starting performance requirement is different, the low temperature starting measures are also different. For such type of engine -the low temperature starting performance requirement is high, to ensure it can start successfully at low temperature, it is necessary to adopt a variety of measures. By installing electric heater plug, it can provide thermal energy for the engine starting performance in cold conditions. The electric heater plug mainly uses proper primer fluid to improve the mixture concentration aether so as to help the engine boot up smoothly under the condition of dirty and dust environment. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. Cellphone: +86 134 8102 4441 E-mail: [email protected] Why Diesel Generator Fail to Start After using a diesel generator for a long time, some malfunctions may occur that will cause the generator fail to start. What can you do when it happens? If diesel generators fail to start, you can analyze the causes from fuel system failure, electric starting system failure, insufficient compression pressure in the cylinder and the low ambient temperature and other factors. Fuel System Failure 1. Air in the fuel system This is a common problem that a diesel generator fails to start normally. Solution: Check whether the fuel oil pipe connector is loose or not, and ensure that the air is cleared from the fuel system. Loosen the bleed screw bolt on the diesel filter, and then use the manual oil pump to pump the fuel until the air bubble is gone. 2. Fuel Line Obstruction Solution: Check whether the pipeline is smooth or not. 3. Fuel Filter Clogging Solution: Clean the filter or replace the filter element 4. The Handle Position of Fuel Injection Pump Is Not Correct Solution: The handle position should be pushed to no-load when starting the diesel generator set. Rotation speed is about 700-900r/min. 5. Fuel Injector Problem – Little fuel injection or fuel injection is not atomized Solution: Remove the fuel injector, connect it to the high pressure oil pump, pry the fuel injection pump plunger spring and observe the spray condition. If necessary, wash the injection pump. 6. Oil Supply Problem – Oil transfer pump doesn’t supply oil or the oil supply is brokenly. Solution: Check whether the oil inlet pipe is leaked or not and the filter screen on the oil inlet pipe connector is blocked or not. Electric Starting System Failure 1. Battery Power Shortage The most common failure for diesel generator is battery failure. Solution: Use the battery with sufficient power, or increase the battery to use in parallel. Replace the new start-up battery if necessary. 2. Circuit Wiring Error or Poor Contact Solution: Check whether the wiring is correct and reliable. The compression pressure in the cylinder is insufficient; fuel injection is normal but does not catch fire; or fuel oil inside the exhaust pipe 1. Excessive wear of piston ring and cylinder liner Solution: Replace the piston ring, and replace the cylinder liner according to the wear condition. 2. Valve leakage Solution: Check the valve clearance, vlave spring, as well as the sealing of the valve guide and seat. If the seal is not good, you should make a repair. 3. Combustion chamber volume is too large Solution: Check whether the piston belongs to the model, if necessary, measure the combustion chamber volume. Ambient Temperature Is Low Solution: According to the actual ambient temperature, the corresponding low temperature measures should be adopted. A lack of diesel generator maintenance or operation knowledge will undoubtedly result in malfunction. To prevent the malfunction occurring again, it is obvious that daily maintenance of the generating set is very important, which not only helps prolong the service life of the machine, but also reduces the cost. In the result of a power failure standby generators are there for us when we need them the most… at least that’s what we hope. As with any piece of machinery a generator cannot be 100% reliable, this blog will explore some of the common reasons why a diesel generator may fail to start and most importantly, how to reduce the risk of a failure. Standby generators are often operated infrequently, meaning that monthly tests and service plans are vital to ensure problems are not occurring unknown to the operator. Let’s take a look at the most common reasons why a generator will fail to start and what you can do to prevent these happening in the future. 1. BATTERY FAILURE Image of a battery connected to a diesel generator One of the most common reasons a generator will not start is due to a battery failure. Often this could be caused by a loose connection or a sulfation build-up (a build-up of lead sulphate crystals on the plates of lead-acid batteries). When sulfate molecules in the electrolyte (battery acid) become so deeply discharged it causes a build-up covering the plate leading to the battery not being able to provide enough current. A battery failure can also occur due to the charger breaker being open inoperable, usually by a fault within the battery charger unit itself or the AC supply being disconnected by a tripped circuit breaker. This can often happen after a service or maintenance has been carried out when the charger has been turned off and not turned back on again. It is always worth double checking the generator system after a service or maintenance has been carried out to ensure the charger supply circuit breaker is in the correct position. Finally, a battery failure could be due to dirty or loose connections. Connections need to be regularly cleaned and tightened to prevent a potential for failure. At Power Electrics we recommend you replace your batteries every three years to reduce the risk of failure. 2. LOW COOLANT LEVELS Without radiator coolant, an engine would soon overheat, leading to mechanical breakdown and engine failure. Coolant levels should be checked on a regular basis by visually checking if there are any puddles of coolant. The coolant colour varies depending on the manufacturer although it most commonly will look red. Internally plugged radiator cores can also lead to low coolant level shutdowns. When the generator is operating under load, the thermostats open completely when the engine reaches the optimum operation temperature, meaning the radiator cannot allow the proper amount of flow through the core. Because the coolant has to go somewhere, it escapes through the overflow line. When the engine cools off and the thermostat closes, the level drops and activates a low coolant level shutdown to your generator. Because this only happens when the generator has reached to optimum running temperature under load, it is suggested that you test your generator with an external load bank with sufficient load to reach the temperature value needed to open the thermostats. 3. BAD FUEL MIX Often the reason your generator will not start is linked in some way to fuel. A bad fuel mix can occur in several ways: When your fuel runs out the engine receives air but no fuel The air intake gets clogged, meaning there is fuel but no air The fuel system might be supplying too much or too little fuel to the mix. As a result, combustion does not occur properly within the engine. Finally, there may be impurities in the fuel (i.e. water in the fuel tanks) which causes the fuel not to burn. This is often the case when fuel has been standing in a tank for long periods of time. As part of a routine service of any standby generator, it is always best practice to test the fuel to ensure it does not cause a fault in the future. 4. CONTROLS NOT IN AUTO When your control panel displays the “Not in auto” message this is a result of human Control panel error, normally due to the main control switch being left in the off/reset position. When it is in this position the generator may not start in the event of a power outage. Regularly check the control panel of your generator to make sure the ‘not in auto’ message is not displaying. There are plenty of other faults which display upon the control panel that can result in your generator not starting. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. Know about Basic Working Principle of Diesel Engine Fuel Filter The fuel filter of diesel engine can filter out the harmful impurities and moisture in the fuel system, protect the normal work of the engine, reduce wear and tear, avoid clogging and improve diesel engine life. Here, we are willing to share the basic working principle of diesel engine fuel filter. The air filter setup on most diesel engines is the same as on gasoline-powered vehicles, with the filter located inside the cold air collector box located under the hood. Most diesels have two fuel filters: a “primary” filter located between the fuel tank and the engine, which cleans the fuel before it gets to the fuel transfer pump; and a “secondary” filter up near the engine, which gives the fuel a final cleaning before it gets to the fuel injectors. Basic Working Principle of Diesel Fuel Filter The purpose of any diesel fuel filter is to remove foreign particles as well as water. The use of a suitable filtration system on diesel engines is a must to avoid damage to closely fitted injection pump and injector components. Filter's ability varies between the type and manufacturer. On diesel engines primary and secondary filters are used. The primary filter is capable of removing dirt particles down to 30 microns and the secondary filter between 10 to 12 microns. Secondary filters are available between 3 and 5 microns, which are used in severe service operations. The primary filter is usually located between the tank and the supply pump, the FWS is one type of the primary filters. The secondary filter between the supply pump and the injection pump. Diesel fuel filter is referred to as full-flow filter, because all the fuel must pass through it before reaching the injection pump. Some filters use internal replaceable element inside a bowl or shell. These are commonly referred to as a shell and element design. Most fuel filters used today are of the spin-on type, which allow for faster change out since the complete filter is a throwaway. Besides, if the filter is installed on the pressure side of the boost pump it must have sufficient strength to handle pump pressure without bursting or leaking. The filter must be located well away from sources of heat, preferably outside of the engine compartment. The fuel filter of diesel engine is mainly composed of three parts: filter element, the shell and filter base (As shown in Figure 1). All models are universal except for the overflow valve 8 that has two structures. Choosing C0810A or C0810B filter should be on the basis of different models. For the 12 cylinder V type diesel genset, it should be installed in parallel with each one of C0810A and C0810B. fuel filter assembly section 1. Gasket 2. Base of filter 3. Pull rod 4. Bleed screw 5. Gasket 6. Pull-rod nut 7. Jump ring 8. Overflow valve 9. Oil pipe connection 10. Seal ring 11. Sealing washer 12. Filter element 13. Seal ring 14. Tray 15. Spring seat 16. Shell 17. Seal ring 18. Spring The fuel is sent to the fuel filter mainly by the fuel pump. The impurities in the fuel will be cleared through the paper filter element. And then the fuel can enter the inner cavity of the filter cylinder. Through the collection chamber of the filter sea, it leads to the fuel injection pump. The filter holder is equipped with fuel return fitting and the overflow valve is also installed inside. When the fuel pressure in the fuel filter is more than 78kPa(0.8kgf/C㎡), the excess fuel will return back to the fuel tank from the fuel return fitting. When connecting the low pressure fuel line, you should connect it according to the arrow pointing direction on the socket to avoid connection error. The filter seat and the shell are connected by pull rod, and it is sealed by rubber ring. Due to there is a bleeder plug on the top of filter seat, users can release the screw to clear the air of the fuel filter in use. The fuel filter of the diesel engine is fixed on the engine body and bracket with two M8-6H screws. If users find that the fuel supply is not smooth, it is possible that the filter element is pluged. At the moment, you should dump the fuel oil. You can directly loosen the pull rod nut of diesel generator set, remove the shell, and take out the filter cartridge (As shown in Figure 2). After the filter element is dipped into gasoline or diesel oil, you can gently wash the dirt off with brush (As shown in Figure 3). If the filter cartridge is broken or hard to clean, it must be renewed. Then install it as shown in Figure 1 and inject the clean fuel. The basic working principle of fuel filter for diesel engine mentioned above is share by Jiangsu Starlight Electricity Equipment Co.,Ltd. Hope it is useful for all users. Besides, our company can provide a variety of specifications common from 3KW to 2500KW, automated, four-protection, automatic cut over, low noise and mobile and so on high quality, and the low energy consumption generator set so as to satisfy the customer all electric power demand. We can also satisfy the user different voltage, different frequency request, as well as many units and networking power supply system. More information about diesel generator at this link. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. [email protected] Tips For Using Diesel Genset in Plateau Area Due to the low pressure, thin air, and less oxygen content of the plateau area, especially for the naturally aspirated diesel generator set, the combustion condition is poor because of the insufficient air intake, which cause the diesel generator set can't send the original nominal power. Although the basic structure of diesel genset is the same , the working ability is different because the calibration power of each type of diesel generator set is different. Then what should pay attention to in the process of using diesel generating set in plateau areas? Diesel genset used in plateau region and plain region, to bring some changes in terms of performance and use of diesel engine, the following points for the use of china diesel generator user reference in plateau area. due to the plateau area of low pressure, thin air, oxygen component is small, especially for naturally aspirated diesel engine, combustion condition, due to lack of air inflow to the nominal power of diesel engine can’t send the original provisions.Even if the diesel engine is the same basic structure, but various diesel engine calibration power is different, so they in the highlands of ability is not the same.Q – 1 type 6135 diesel engines, for example, the nominal power of 161.8 kW / 2200 r/min,, because of the large nominal power performance allowance is very small, when using a rise in plateau 1000 m, power by about 12%, so use for a long time should be according to the local sea dials in plateau height, reduced oil.- 11 and 6135 k type diesel engine, although the combustion process is the same, but because of the nominal power of only 117.7 kW / 2200 r/min, so performance with sufficient margin, so diesel engine itself has certain work ability of the plateau. Given under the condition of the plateau, the tendency of ignition delay, in order to improve the working economy of the diesel engine, the general recommended naturally aspirated diesel engine fuel supply advance Angle should be properly in advance. Due to either altitude increases, power performance, exhaust temperature rise, so the user should also consider when choosing diesel engine plateau work ability, strictly avoid overload operation. According to the tests showed that in recent years, use of diesel engine on the plateau region, to adopt the method of exhaust gas turbo power compensation as the plateau.Through the exhaust gas turbo not only can make up for the inadequacy of plateau power, also can improve smoked, restore the dynamic performance and reduce the fuel consumption rate. with the increase of sea dials, the environment temperature is lower than that in plain area, generally every 1000 m, decrease environmental temperature of about 0.6 ℃ or so, and because of the plateau thin air, therefore, the starting performance of diesel engine than plain area is poor.Users in the use, with low temperature starting corresponding auxiliary starting measures should be taken. due to either altitude increases, the boiling point of water is reduced, at the same time, wind pressure and cooling air quality of cooling air is reduced, and the increase of the per kw heat in a unit time, so the cooling system of heat dissipation conditions worse than plain.In high sea dials should not be commonly use open cooling loop, closed cooling system pressure can be used to improve the plateau when using the boiling point of coolant. For example, 6135Q -1type diesel engine, its nominal power is 161.8KW/2200r/min. Due to the calibration power is large, the performance margin is very small, as long as the use of diesel engine on the plateau is increased by 1000m, the power will be reduced by about 12%. According to the local elevation, it is necessary to reduce the oil supply properly. However, for the 6135K-11 type diesel engine, its nominal power is 117.7KW/220r/min. Such type of diesel engine is suitable to be used on the plateau because it has a sufficient performance margin. Considering the tendency of ignition delay under the environmental conditions of plateau area, in order to improve the operating economy of diesel generator set, the naturally aspirated diesel engine fuel supply advance angle should be appropriately advanced. Due to the elevation, power dropping and exhaust temperature rise, so in the selection of diesel generating sets should also consider the diesel engine working ability in plateau area, and strictly avoid overload operation. According to the test for many years, it is proved that the method of adopting exhaust turbocharging can be used as power compensation for the diesel generator sets used in plateau area . Exhaust turbocharging can not only make up for plateau under-power, but also improve the smoke color, restore power performance and reduce the fuel consumption rate. With the increase of altitude, the environment temperature is lower than that in plain area. In general, by increasing 1000m, the ambient temperature will drop about 0.6℃. Due to the rarefied air on the plateau, the starting performance of diesel generator set is worse than that of plain area. So when user use the gensets, the corresponding auxiliary starting measures should be taken with low temperature starting. Due to the rising of elevation, the boiling point of water is reduced, meanwhile, the air pressure and quality of the cooling air is reduced, as well as the increase of heat dissipating capacity per KW in unit time, the cooling condition of the cooling system is poor than that of the plain. Generally, it is not appropriate to adopt the open cooling cycle at high altitude. However, the pressurized closed cooling system can be used to increase the boiling point of the coolant liquid in plateau. The notes mentioned above are shared by Jiangsu Starlight Electricity Equipments Co.,Ltd. Hope it is useful for all users. Our company is the leading manufacturer of alternator and diesel generator in China. So far, Starlight has already established 64 sale and service departments all over the country. At any time, we can provide customers with design, supply, debugging, and maintenance one-stop service. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. Simple Ways to Deal with Diesel Generator Failure Most of time, diesel generator runs abnormally because of battery long time no maintenance or the deviation between components . In reality, it can be back to normal as long as you make a little adjustment. Therefore, we should have the ability to deal with the faults.
Generators are crucial for providing an ‘insurance policy’ in case of power failures and offer some peace of mind. But the last thing anyone wants is for a generator to fail as well! That’s why it is so important for generators to undergo regular maintenance to ensure all their systems are in good repair and functioning properly. Here are some of the top 10 reasons that generators fail—and some tips for what you can do to address the risk in the meantime. 1. Problems with the Battery System Based on our experience, close to half of all emergency generator failures are caused by problems with the battery. Routine battery maintenance is important for good performance. Connections need to be cleaned and tightened. You should also note the service life of your batteries and replace them proactively. Towards the end of its life, a battery will provide closer to 80% of its designated capacity. Periodically checking the circuit breaker on the battery charger is also recommended, as this is a frequent cause of battery failures. 2. Controls Not Set for Automatic Operation Although it may seem obvious, one issue that we see frequently is the master controls for the generator not being set for “Auto” (automatic operation). This can also occur when the emergency stop button is pressed. Building the habit of double-checking the master control set is a great way to prevent failures. 3. Overheating from Cooling System Failures Cooling systems failures are most commonly caused by worn-out hoses and drive belts. Both should be regularly inspected to ensure they are working properly and set at the correct tension. Another component that needs inspection is the radiator core. Radiator cores can become plugged, either from dust and debris or as a result of corrosion and dirty coolant. Monitor the coolant to assure cleanliness and correct chemical balance, then perform a visual check to ensure plugging does not cause overheating. 4. Water Contamination or Lack of Fuel Don’t let water get into your fuel supply! Water or moisture in fuel can easily damage diesel engines or impact their overall performance. Keep your fuel tanks topped up and use fuel stabilizers to protect the diesel from water contamination.Take a fuel sample regularly and inspect for discoloration or abnormal smell. Remember to monitor the fuel levels consistently as well. It’s another obvious tip, but being proactive about topping off your tanks will ensure you do not find yourself in a panicked situation as your generator is about to shut down! 5. Switchgear Problems Switchgear or automatic transfer switches (ATS’s) contain moving parts that need to be inspected during maintenance. Issues with switchgear are commonly the result of some kind of mechanical failure. Parts can seize if they are left in one position for too long, so monthly testing is recommended. Check for loose connections or a buildup of dirt, dust and other debris. This will help ensure everything is working smoothly. For the failure of diesel generator, first you should have a adjustment and check whether it is helpful. Then what problems should we pay attention to when making a adjustment? Regulator adjustment: If the faults like charging ammeter pointer stops movement, charging ammeter is too large or small occur during the process of using diesel generator, it needs a regulator to adjust. If battery charging current is too large, it will shorten the service life. If it is too small, it can't give battery charged on time. If the charging ammeter shows the charging current is too large when diesel generator works, you should adjust the current limiting spring of regulator to shorten the spring. The current should be reduced. Or vice versa. In the process of adjusting, not too hard, light touching until it meets the requirements. Oil pressure adjustment: In general, diesel generator has two lubrication methods. One is pressure lubrication, the other is splash lubrication. Diesel generator lubrication quality is closely connected with oil pressure. Therefore, when the diesel generator is at work, the oil pressure must be controlled within the valid range. Diesel generator decompression adjustment: In the process of using diesel generator in winter, it is hard to start because of the cold weather or battery shortage. To make the diesel generator set gets started, you can depend on the diesel generator inlet valve decompression way to reduce the compression radio and improve the starting resistance. Fan belt adjustment: The tightness of the diesel generator fan belt should be just right. If the belt is too tight, it will exacerbate the wear to the direct generator bearings, water pump bearings and fan bearings. If it is too loose, it will cause insufficient fan air volume, influence the cooling effect of the cooling water, reduce the water pump flow, which can't reach the usage requirement. So the fan belt should be regulated according to the usage requirements. The above processing methods to deal with generator failures are shared by Jiangsu Starlight Electricity Equipments Co.,Ltd, a professional manufacturer of diesel generator. Hope it can help you. Power failures can happen for a number of reasons: bad weather, an overloaded power station, or damage to transmission lines. Whatever the reason, many businesses and government organizations put backup generators in place to ensure normal operation can continue while the issue is resolved. Depending on the situation, loss of power can be incredibly detrimental to service delivery or productivity. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. China Yuchai International Limi (NYSE:CYD) Stock Closed 9.6% Above Its 50 Day Moving Average Shares are trading at $20.91 which is slightly above the 50 day moving average of $19.08 and quite a bit higher than the 200 day moving average of $18.59. The 50 day moving average was up $1.83 or +9.57% and the 200 day average went up $2.32 or +12.48%. Trading volume for China Yuchai International Limi was 401 on Thursday. Shares saw a steep decrease in trading volume of 98.25% under the normal average daily volume. Traders are more bullish on China Yuchai International Limi recently if you pay attention to the motion in short interest. The firm had a fall in short interest between August 15, 2017 and August 31, 2017 of -21.12%. Short shares fell 26,066 over that period. With short interest at 97,337 and short average daily volume at 97,380, the short-interest ratio is 1.0 and the percentage of shorted shares is 0.00% as of August 31. A few notable investment firms have updated their holdings. As of the end of the quarter Sensato Investors LLC had bought a total of 105,582 shares growing its position 95.5%. The value in dollars increased from $2,047,000 to $3,936,000 a change of $1,889,000 quarter over quarter. As of quarter end Ubs Group Ag had acquired 119,852 shares growing its holdings by 5,603.2%. The value of the investment in (CYD) went from $40,000 to $2,221,000 a change of 5,452.5% since the last quarter. As of the end of the quarter Two Sigma Advisers, Lp had bought 71,601 shares growing its stake by 226.3%. The value of the investment in China Yuchai International Limi increased from $586,000 to $1,880,000 increasing 220.8% for the reporting period. Etrade Capital Management LLC cut its holdings by selling 1,370 shares a decrease of 2.8% from 03/31/2017 to 06/30/2017. Etrade Capital Management LLC now controls 47,042 shares valued at $857,000. The value of the position overall is down by 4.4%. The company is trading down by 1.46%% since yesterday’s close of 21.22. The company announced a dividend which was paid on Thursday July 13th, 2017. The dividend was $0.225 per share for the quarter or $0.90 annualized. This dividend amount was represent a yield of $4.34. The ex-dividend date was Monday the 5th of June 2017. China Yuchai International Limi’s P/E ratio is 8.23 and the market cap is 851.29M. China Yuchai International Limited, launched on April 29, 1993, is a holding company. The Company holds interest in Guangxi Yuchai Machinery Company Limited (Yuchai), which manufactures, assembles and sells diesel engines in the People’s Republic of China (the PRC). In addition, the Company holds interest in HL Global Enterprises Limited (HLGE) and Thakral Corporation Ltd (TCL). The Company operates through two segments: Yuchai and HLGE. The TCL group invests in real estate and other investment opportunities, which include property-backed financial instruments and in direct property. TCL is involved in the distribution of lifestyle products, including beauty and health, and enviro-care products in China (including Hong Kong), Southeast Asia and India.. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. Tel: +86 771 5805 269 Cellphone: +86 134 8102 4441 E-mail: [email protected] We have CE,ISO,CQC certificate, and also have independent import and export right. Useful Maintenance Tips for Diesel Generator Set The correct maintenance of diesel generator set is the key to prolong the service life and reduce the cost of diesel generator. Meanwhile, proper maintenance can also keep diesel generator working efficiently. How to maintain diesel generator set? The useful tips are as follows: 1. After the installation of the diesel generator set, the sealing inspection should be done before starting. In addition, the generator must be started under no load. 2. For the newly purchased diesel genset, it must be run in 60 hours before used. 3. After the start of diesel generator set, it must be run 3-5 min under no load, then it can be allowed to accelerate and load. When the water temperature is higher than 75℃, the oil temperature is higher than 50℃, and the engine oil pressure is higher than 0.25MPa, it can be allowed to work normally. 4. For the new supercharged diesel engine or the new replacement supercharger, which must remove the inlet connector on supercharger, filling in 50-60ml engine oil to prevent burning out turbo-charger bearing due to the lack of oil at startup. 5. When the diesel generator set runs, you should observe the operation of the generator and the indicator value of all instruments. In case of emergency, you should adopt emergency shutdown measures to prevent diesel generator from being killed due to water shortage overheating or oil pressure loss. 6. In general, it is not allowed to start diesel generator set without air filter (Except for marine diesel generator sets). This can prevent dust and impurities entering the diesel engine so as to avoid the early wear of diesel genset. 7. For the running diesel generator set, it should be careful to prevent steam wounding when filling coolant liquid. Only when the water temperature is below 70℃ can allow to open pressure cap. 8. Diesel generating set shall be in the parking state when adjusting the belt tension and other driving devices. 9. When the diesel generator set is stopped, especially in winter, without using anti-freezing coolant, all the cooling water in the cooling tank should be drained to prevent machine from cracking. 10. The diesel engine is not allowed to be directly cooled by seawater. In case of the thermolator for controlling water temperature is out of order, it should be promptly replaced instead of removing. 11. Users are not allowed to remove all seals on the diesel generator set. If necessary, the machine should be repaired or adjusted by professional company. 12. Regularly checking the fastening bolts and nuts to check whether they are loose or not. 13. It should be careful to avoid acid wounding when supplementing the battery electrolyte. 14. When the diesel generator set is not used for a long time or in the maintenance, in order to prevent the diesel engine starting in accident, the connecting wire between the generator and the battery should be removed. 15. When filling the engine oil, different specifications of the lubricating oil can't be mixed use. 16. Doing a thorough cleaning to the engine body every month, without grease, dust and sundries including equipment, accessories, and cleaning and oil storage of tools. 17. According to the requirements for the use of genset and the climate natural environmental condition, safeguard procedures should be taken timely especially for mobile generating set. In winter, you should promptly replace antifreeze oil and cooling liquid. In summer, you should strengthen sunstroke prevention and cooling measures. The outdoor work gensets should be covered with tent in order to prevent sun exposure. In the rainy season, moisture-proofing should be taken into account. The maintenance tips mentioned above are shared by Jiangsu Starlight Electricity Equipment Co.,Ltd. Hope it is useful for all users. Our company is a leading manufacturer of producing diesel generator, and it is also one of earlier diesel engine and generator manufacturers in China. Our company has advanced detection equipment, modern production technology, professional manufacturing technology, perfect quality management system and excellent R & D strength. So far, Starlight has already established 64 sale and service departments all over the country. At any time, we can provide customers with design, supply, debugging, and maintenance one-stop service. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. We have CE,ISO,CQC certificate, and also have independent import and export right. Tel: +86 771 5805 269 Cellphone: +86 134 8102 4441 E-mail: [email protected] Fully charged: Middle East Electricity highlights It seems unlikely that there are many exhibition halls as focused and yet as diverse as the generator section of Middle East Electricity (MEE), a show which this year saw its 42nd iteration. From door to door and wall to wall, the event saw the demonstration of generator sets great and small, and all in all shapes, sizes and colours. PMV Middle East caught up with some of the heavy hitters. Drawing the line just short of complete generator fabrication is Volvo Penta, which has chosen to avoid direct genset sales in favour of remaining an independent supplier of engines to the whole industry. it launched two new 16-litre diesel engines at the show: the TWD1644GE and TWD1645GE — the latter extending Volvo Penta’s competitive range up to 800kVA and which the manufacturer claims has the highest power density engine per litre of displacement in its class. There to present the launch was Giorgio Paris, Volvo Penta’s president of emerging markets, who noted: “The development of these two new engines is a great tool to expand our presence in the upper range – now we have put forward a diesel engine that covers a range between 500kVA and 800 kVA, which is almost unique in the power generation business. “The Middle East is one of the biggest power gen markets, and the upper range is definitely a market that is growing. These two new engines will allow Volvo Penta to penetrate power nodes where we have never been before.” Volvo’s 16-litre family is one that is already quite well known and popular in the region, with Paris noting that there are many of these units working in Saudi Arabia to pump water from the ground for agricultural irrigation: “We have sold thousands of 16l engines into the region over the years.” The TWD1644GE and TWD1645GE are an evolution of Volvo Penta’s existing range, with changes being made to the charger, the pistons, the wiring and the electronics. The units have two fixed ratings: 1500rpm or 1800rpm, delivered at 50Hz or 60Hz, repsectively, and come with a standard warranty of two years. An extended four-year warranty can also be purchased. Reliability was one of the main pitches for the product, and they were introduced with the slogan ‘the heart that never stops’. Paris continued: “In terms of total cost of ownership, we pay a very high degree of attention to fuel consumption — when these machines are working 24 hours a day, fuel consumption is a key element, and so our engineers have worked hard to make the engine efficiency really high.” Commenting on MEE, Paris added: “My impression is that this show is developing quite well, and increasingly becoming a benchmark for the power generation business in the region.” Himoinsa hybrids Vertically integrated Spanish manufacturer Himoinsa was at the show this year to present technological concepts as much as products — advocating for the potential of integrating generator sets with photovoltaic systems. Such hybrid solutions have the potential to reduce operator fuel costs and OPEX while taking advantage of solar resources in areas with high levels of solar irradiation. They also hold considerable potential for the supply of power in remote areas where the power grid either does not reach or is unreliable. Volvo’s First Full Electric Car to Hit the The Roads In 2019 Volvo’s new all-electric car is both pricier than its usual line, but it also has more range to be an urban commuter car and beyond. Volvo’s U.S. chief, Lex Kerssemakers said that the car would cost between $35,000 and $40,000. He also stated that the car will have at least a 250-mile range. This, of course, puts Volvo to be Chevy Bolt and Tesla Model 3’s competitor. Although the details are still blurry, the price and range of the car indicate that it will be a sedan rather than an SUV. In this case, range is an important issue for Volvo as people won’t buy a car with ‘insufficient’ range. Volvo’s new attempt on producing an electric car is important for all EVs in general as the new line will make the EVs more accessible. Yet, also, a familiar brand like Volvo that is associated with upscale cars will introduce EVs to a wider group of people. Consequently, it would be a shame if Volvo let Tesla sell electric cars without a rival in its home country, Sweden. We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements. We have CE,ISO,CQC certificate, and also have independent import and export right. Contact Us Tel: +86 771 5805 269 Cellphone: +86 134 8102 4441 [email protected] |
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dieselgenerator 存档
July 2022
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