On May 25, Starlight Power received the monitoring report of occupational hazard factors from Jiangsu Liwei Testing Technology, which showed that all the inspected positions of Starlight Power met the requirements of occupational monitoring standards.
Daily monitoring is voluntary testing by individuals, enterprises, social groups and state organs. Starlight has always adhered to the attitude of being responsible for employees, customers and society, and paid more attention to the training of employees' occupational hazard protection knowledge and the supervision, inspection and assessment of the correct wearing of personal protective equipment. After the Starlight people heard the good news, in addition to joy, many employees also expressed their deep gratitude to the company. Thank the company for attaching importance to the working environment of employees, so that employees can work in a safe, healthy and comfortable environment. "Pursuing excellence and creating perfection" is the purpose of Starlight people. Starlight people will continue to carry forward the spirit of "pragmatic innovation, pioneering, unity and hard work, and dare to be the first", and win more users with high-quality products and good services to return the company's love for employees. Jiangsu Starlight Electricity Equipments Co.,Ltd. is a diesel generator set factory integrating product development, production, sales and installation. The company has successfully developed a series of diesel generator sets with high-tech technology, and has formed industrial production. The main products are: silent series, mobile trailer series, container series diesel generator sets. For more details, please contact us with [email protected].
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Fault feature 1: The diesel generator cannot reach the specified power.
Possible causes: (1) The bearing is worn. (2) The compressor impeller and its volute flow passage are contaminated. (3) Too much carbon is deposited at the back of turbine and compressor impeller and at the sealing ring. Troubleshooting: (1) Have professional maintenance personnel replace the bearing. (2) Have them cleaned by professional maintenance personnel. Fault feature 2: The exhaust smoke color of the diesel generator is abnormal, and the exhaust pipe emits black smoke (insufficient air intake). Possible causes: (1) Some flow passages of compressor are contaminated. (2) The compressor leaks. Troubleshooting: (1) Have them cleaned by professional maintenance personnel. (2) Ask professional maintenance personnel to check the sealing condition and eliminate air leakage. Fault feature 3: Blue smoke from exhaust. Possible causes: (1) The elastic sealing ring loses elasticity or is excessively worn. (2) The oil return passage of the intermediate casing is blocked or the pipeline is deformed. Troubleshooting: (1) Have professional maintenance personnel replace the elastic sealing ring. (2) Have professional maintenance personnel clean and repair the deformation. Fault characteristics: 4: Abnormal sound and vibration. Possible causes: (1) The compressor surges and the supercharger vibrates with large amplitude (serious contamination of compressor channel, intake pipe and turbine outlet channel is one of the reasons for surge). (2) Improper assembly (turbine and compressor rotors lose dynamic balance or rotating parts collide with fixed parts). (3) The blades of the turbine wheel or compressor wheel are damaged by incoming foreign materials. (4) The deformation of the turbine casing causes friction. (5) There are foreign matters in the passage of the vaneless volute, which are found in the diesel engine. Abnormal sound can be heard when idling. Troubleshooting: (1) Have them cleaned by professional maintenance personnel. (2) Have professional maintenance personnel dismantle, inspect and repair. (3) Let professional maintenance personnel check and repair, and replace the supercharger if necessary. (4) Have the professional maintenance personnel find out the cause of the deformation and eliminate it. If necessary, replace the supercharger. (5) Have the professional maintenance personnel dismantle and check the channel section, and check the diesel engine intake and exhaust system at the same time. Fault feature 5: The turbine press rotor cannot rotate or is not flexible. Possible cause: Serious carbon deposition at the back of turbine, compressor and elastic seal ring seat. Troubleshooting: ask professional maintenance personnel to clean and check the diesel engine for poor combustion and oil leakage. Fault characteristics: 6: Bearing burning and rotor rubbing. Possible causes: (1) The lubricating oil is too dirty, the oil pressure is too low or the oil path is blocked. (2) The inlet oil temperature is too high. (3) The dynamic balance of turbine and compressor rotor is damaged or improperly assembled. (4) The exhaust temperature is too high and the supercharger speed is too high. (5) The turbine casing is deformed. Troubleshooting: (1) Check the lubrication system and clean the filter. (2) Find out the cause of oil temperature reduction. (3) Have professional maintenance personnel dismantle, check and recheck the balance; Replace the supercharger if necessary. (4) Check the diesel engine and exhaust pipe for serious air leakage, deformation, blockage, etc., repair and clean them. (5) Find out the cause of deformation and eliminate it. Replace the supercharger if necessary. Fault feature 7: Speed drop, intake pressure drop, air leakage or abnormal sound, etc. Possible causes: (1) The supercharger bearing is worn and the rotor is rubbing. (2) The air inlet pipe of the compressor is contaminated, blocked or leaking. Troubleshooting: (1) Have the supercharger repaired by professional maintenance personnel and replaced if necessary. (2) Have professional maintenance personnel repair and clean the compressor casing, wipe the impeller and clean the air inlet pipeline; Tighten the joint nuts, clamps, etc. Jiangsu Starlight Electricity Equipments Co.,Ltd. has a young and professional technical backbone team, with an average working age of more than 10 years in the generator unit industry. There are 64 sales and service departments throughout the country to provide users with a one-stop service of machine room design, equipment supply, commissioning and maintenance at any time. No matter when and where, a well-trained service team will provide you with comprehensive and considerate protection. For more details, please contact us with [email protected]. DEUTZ diesel generator is a working process in which diesel engine is used to drive the generator and convert the energy of diesel into electrical energy. Next, Starlight Power will share with you the working principle of Deutz diesel generator.
In the diesel engine cylinder of the Deutz diesel generator, the clean air filtered by the air Frega filter is fully mixed with the high-pressure atomized diesel fuel injected from the fuel injection nozzle. Under the upward extrusion of the piston, the volume shrinks and the temperature rises rapidly, reaching the ignition point of the diesel fuel. The diesel fuel is ignited, the mixed gas burns violently, the volume expands rapidly, and pushes the piston downward, which is called "work". Each cylinder works in a certain order. The thrust acting on the piston becomes the force that drives the crankshaft to rotate through the connecting rod, thus driving the crankshaft to rotate. By coaxial installation of Deutz diesel generator and diesel engine crankshaft, the rotation of the diesel engine can be used to drive the rotor of the generator. Using the principle of "electromagnetic induction", the Deutz diesel generator will output the induced electromotive force, and the current can be generated through the closed load circuit. The above is only the basic working principle of Deutz genset. In order to obtain usable and stable power output, a series of diesel engine and generator control and protection devices and circuits are required. Due to its small size, light weight, complete supporting facilities and easy operation and maintenance, Deutz diesel generators are widely used in mines, railways, fields, road maintenance, hospitals and other fields as emergency backup power or temporary power supply. Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected]. Recently, Jiangsu Starlight Electricity Equipments Co.,Ltd. and Guangxi Gangqi Investment Co., Ltd. successfully signed a 500KW diesel generator set and an environmental protection and noise reduction project for the engine room. It is understood that these two sets will be used in Fangchenggang Evergrande Yuelanwan Project.
The 500KW diesel generator set ordered by the customer adopts a well-known brand engine with high horsepower, large torque, high stability, low fuel consumption, low emission, low noise and high cost performance. This 500KW diesel generator integrates the leading technologies of large and medium-sized diesel engines from all over the world, and is equipped with booster pressure intercooling, high-pressure common rail, and motor-controlled single pump. It has the characteristics of green environmental protection, high stability, strong loading capacity, and good maintenance characteristics. Starlight Power can provide engineering project services such as diesel generator room noise, environmental protection equipment engineering, main engine room lighting fixtures, and exhaust emission treatment. Commitment to construction quality regulations in line with China's relevant technical standards and engineering construction acceptance standards and procedures. In order to ensure the safe application of 500KW diesel generator sets for customers, Starlight Power also provides a 1-year or 1,000-hour (whichever comes first) diesel generator set warranty period for each project. Jiangsu Starlight Electricity Equipments Co.,Ltd. is one of the earliest manufacturers of generators and diesel generator sets in China. The company was established in 1974 and the company occupies an area. With an area of 86,000 square meters and a building area of 45,000 square meters, it has 64 sales and service departments across the country to provide users with one-stop service of design, supply, debugging and maintenance at any time. Welcome customers to come to consult and visit. Looking forward to your inquiry, please send email to us for details [email protected]. 1.Fault diagnosis of high pressure common rail fuel supply system of 300kva Cummins diesel generator set.
The sensors and actuators used in the high-pressure common rail fuel supply system have the characteristics of large number, high precision and fast feedback. As long as one element is damaged, it will have a great impact on the whole system, and even lead to the failure of normal operation or start-up of the equipment. The problems faced by the fault diagnosis of the system are also the most critical. Because the structure and control mode of the high-pressure common rail fuel supply system are very different from the traditional diesel generator, the faults in the system are also more complex. Generally, the faults can be divided into the following types. (1) Fuel supply system failure caused by low pressure part. ① There is a problem with the fuel transfer pump. The fault phenomenon is that the engine stalls after warming up, the idle speed is unstable and the acceleration is weak. You can connect the oil pressure gauge in series between the oil tank and the oil circuit of the primary fuel filter, check the oil pressure value (the oil pressure should be greater than 3bar during rapid acceleration), judge the condition of the fuel transfer pump, and eliminate the fault by repairing or replacing the fuel transfer pump. ② The problem of fuel filter shows that it is difficult to start cold, which is mainly caused by too much water in the filter or damage to the heater, especially in winter. In winter, the water in the filter of 300kva Cummins diesel generator should be discharged regularly and the working condition of the heater should be checked. (2) Fuel supply system failure caused by high pressure part. The high-pressure part of the fuel supply system uses the cam to drive the pump plunger of the high-pressure pump up and down to complete the oil suction and pumping process. ① There is a problem with the high-pressure pump. The fault phenomenon is that the high-pressure pipeline has insufficient fuel pressure due to the damage of components in the high-pressure pump. The fault of the high-pressure pump can be judged by reading the fault code of the common rail pressure sensor and data flow analysis. ② There is a problem with the common rail pressure sensor. The fault phenomenon is that the engine stalls after starting, and cannot be started again after stalling. The reason is that the oil measuring hole of the common rail pressure sensor is blocked or the sensor is damaged, resulting in abnormal signal of the common rail pressure sensor detected by ECU, forcing the engine to shut down. Use a multimeter or oscilloscope to detect the output voltage signal of the sensor (the normal value is 0.5 ~ 4.5V), so as to judge this kind of fault. ③ There is a problem with the common rail pressure limiting valve. The fault phenomenon is difficult to start, unstable idle speed and weak acceleration during driving. The reason is that the fuel pressure in the common rail is large and insufficient due to the leakage of the common rail pressure limiting valve. It can be judged by analyzing the data flow of common rail pressure sensor with detector or oscilloscope under the condition of landing. ④ There is a problem with the electronic fuel injector. The fault phenomenon is that it is difficult to start the hot vehicle and black smoke is emitted from the exhaust pipe. The reason is that the mixture is too rich due to poor injection or oil dripping of the electronic fuel injector. Check and analyze the current waveform of fuel injector with oscilloscope or tester to further judge the fault of fuel injector and replace it. 3. Misunderstanding of fault diagnosis and maintenance. In the process of fault detection and judgment of high-voltage common rail system of electronically controlled diesel generator, it is a more direct method to directly read the fault code with computer detector to diagnose the fault. Therefore, many maintenance personnel directly use the read fault code to judge the fault location, or try to eliminate the fault by replacing the components and parts displayed by the fault code, However, the fault can not be eliminated, because the fault code does not mean that the components referred to in the fault code really have a fault. This is because the fault conditions and thresholds set by ECU for each component are different, and the interaction between various components and other factors exist. Some of the fault codes stored by ECU can reflect the real situation of the fault, while others cannot. For example, some faults are caused by mechanical faults, which make the signal of the sensor deviate or exceed the range, and the ECU will report the sensor fault. In fact, the sensor is not the fault point. In short, a fault code does not mean that there must be a fault, and no fault code does not mean that there must be no fault. Diagnosing the fault location through the fault code can only be used as a reference. It also requires the maintenance personnel to determine the key inspection objects after careful analysis and judgment according to the accumulated experience, knowledge and technology. With the help of instruments and meters to detect the performance parameters of components, we can judge the authenticity of fault code, find out the real cause of fault and determine the fault location. On April 17th, Starlight Power and Guangxi Jinchuan Sunshine City Industrial Co., Ltd. successfully signed two 450KW non-dynamic diesel generator sets, which are used for the supply and installation of diesel generator sets of Nanning Sunshine City Lijingwan Phase 2.2 and Phase 2.3, Guangxi project. It is understood that this is the second cooperation between Guangxi Jinchuan Sunshine City Industrial Co., Ltd. and Starlight Power. In 2014, it purchased a 500KW diesel generator set from Starlight Power for the backup power supply of Nanning Sunshine City Feiliwan Project.
Sunshine City Lijingwan developed by Guangxi Jinchuan Sunshine City Industrial Co., Ltd. is located at the intersection of Nanning ASEAN Business District and Wuxiang Business District, covering an area of 375 mu. Among them, the high-rise residential area is about 480,000 square meters, the commercial area is about 60,000 square meters, and the townhouses are about 55,000 square meters. Thanks to Guangxi Jinchuan Sunshine City Industrial Company for choosing Starlight Power as the supplier again for this diesel generator set purchase, and thanks to Guangxi Jinchuan Sunshine City Industrial Company for its support to Starlight Power. The two 450KW passive diesel generator sets purchased by the user have the advantages of high power, low fuel consumption, low noise, low emission, easy start-up, strong reliability, stable performance, simple operation and convenient maintenance. In addition, Starlight Power also provides the design of the environmental noise reduction project of the generator room, the installation and commissioning of the generator set, the acceptance, the provision of technical data, the technical training and the after-sales maintenance and other services. Really let users "buy with confidence, use with confidence"! Jiangsu Starlight Electricity Equipments Co.,Ltd. is one of the earliest manufacturers of generators and diesel generator sets in China. The company relies on high-quality products and good services. It has been widely recognized by users in many fields. At present, it can provide various specifications of diesel generator sets in the power range of 15KW-2500KW. For more details, please contact us with [email protected]. If the parts of Cummins generator set are worn, it will seriously affect its performance and service life, so we must master the correct method to reduce the wear of Cummins generator set parts. Specific actions that can be taken include:
Suitable lubrication method. Choose appropriate lubricants and lubrication methods, and replace dry friction with better fluid friction, which is a way to reduce friction and wear. For Cummins generator set accessories, choose which brand of lubricating oil to use according to the specific requirements of different engines and accessories, as well as according to different seasons and regions of use. Reasonable structural design. The structure should be conducive to the formation and recovery of the surface protective film between the friction pairs, the uniform distribution of pressure, the dissipation of frictional heat, the discharge of wear debris, and the prevention of the entry of external abrasives and dust. in structural design. The displacement principle can be applied, which allows one fitting in the system to wear out to protect another important fitting, or the transfer principle, which allows the other two pieces in the friction pair to wear out quickly while protecting the valuable fitting. Select the correct part material and finish. According to the form of basic wear, choose the material correctly to improve the wear resistance of Cummins generator set parts. Materials with high fatigue strength, good corrosion resistance, wear resistance and high temperature resistance should be selected in the design and manufacture. At the same time, attention should be paid to the mutual solubility of the paired materials, so that they have a suitable combination, and the wear resistance of the surface can be improved by using various surface treatment methods. Improve quality. Improving the quality of machining, assembly and installation is an effective measure to prevent and reduce wear. Create good environmental conditions and correct use and maintenance. Try to avoid excessive load, high movement speed and working temperature, create good environmental conditions, strengthen scientific management, conduct regular personnel training, and strictly implement operating procedures and other relevant rules and regulations. Cummins generator set parts should be properly run-in at the beginning of use. During use, the maintenance of the oil supply system, air intake system and lubrication system should be done well to prevent the generation and intrusion of abrasives. Use monitoring and testing techniques wherever possible. Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected]. The amount of oil used in Cummins generator sets, the quality of oil, the type of oil used in spring and what to use in winter will affect the efficiency and life of the unit.
1. It is necessary to use the right quality grade oil, which is the key to ensure the normal operation of the Cummins generator set. 2. Temporary use of substitute oil should strengthen observation If the oil supply is not timely or there is no suitable oil, the substitute oil can be temporarily used, but it is necessary to strengthen the observation during use, pay attention to the oil quality and whether the oil filter is blocked, and stop the operation in time if the problem is found. 3. Choose oil of appropriate viscosity The oil with the appropriate viscosity should be selected according to the local temperature. It is wrong to think that the higher the viscosity, the better. Because the viscosity is too large, the oil flow is too slow at the beginning, which will easily increase the wear of the parts and even cause the burning of tiles. 4. Drain waste oil when changing oil In order to prolong the service life of the Cummins generator set, the old oil should be drained when the oil is changed, so as not to contaminate the newly added oil, which will cause the new oil to deteriorate rapidly and cause corrosive wear of the engine. Under normal circumstances, drain the waste oil at high temperature, then add washing oil (a mixture of 85% ordinary oil and 15% gasoline), run it at idle speed for 10 minutes after starting, drain it again, and then add clean new Oil will do. 5. Keep the crankcase well ventilated The gas entering the crankcase from the combustion chamber is corrosive, which can oxidize and deteriorate the oil and contaminate the Cummins generator set. Therefore, it is necessary to keep the crankcase well ventilated. 6. maintain normal oil level When the oil amount is insufficient, it will not only accelerate the deterioration of the oil, but also cause the burning loss of the parts due to lack of oil; on the contrary, if the oil amount is too much, the oil will enter the combustion chamber along the gap between the cylinder wall and the piston ring, causing Cummins The generator set burns oil. In addition, the oil level is too high, which increases the agitation resistance of the oil, increases the fuel consumption and aggravates the wear. 7. Regular maintenance of the oil filter Regularly check and maintain the oil filters and replace the filter elements in time. Cummins generating set operators should be aware of them. 8. Regular or quality oil changes Oil of any quality, after a certain mileage is used, some physical and chemical indicators will change, which will cause harm to the engine and cause failure. Therefore, the oil should be changed regularly according to the quality of the oil. 9. When thickened oil is used, the oil pressure is slightly lower than that of general oil of the same brand. Because the thickened oil has good viscosity and temperature, the viscosity is larger at high temperature, and the viscosity is smaller at low temperature, and the viscosity is slightly lower in the normal temperature range of the engine, so it is normal for the pressure to be slightly lower. 10. When using general-purpose oil throughout the year or thickened oil in winter, ordinary oil cannot be added to avoid affecting the low-temperature starting performance; ordinary oil can be gradually added in spring or when general oil is used. Starlight Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question. There are different methods for adjusting the belt of the in-line Chongqing Cummins generator with tensioner. In particular, the adjustment of the water pump belt is the most common and requires the most experience and technology. The deviation of the in-line Chongqing Cummins generator water pump belt is the most common fault during its operation. To effectively solve such problems, it is necessary to improve the installation accuracy and strengthen the daily repair and maintenance work.
Loosen the screws and lock washers or lock nuts that fasten the Chongqing Cummins generator tensioner to the bracket or water pump. Adjust the tensioner using a pry bar or adjusting screws until the tension gauge indicates proper belt tension. Tighten the Chongqing Cummins generator lock nut or screw and lock washer to a torque of 45-55 ft-lb to secure the tensioner or bracket in place. There will be more exciting content in the future, please continue to pay attention. The above is the in-line Chongqing Cummins generator set with tensioner shared by Jiangsu Starlight Electricity Equipments Co.,Ltd., a professional generator manufacturer. I hope it will be helpful to everyone. Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to send email to [email protected]. |
AuthorJiangsu Starlight Electricity Equipment Co.,Ltd. Archives
July 2022
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