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  • Sep
    18
    How to deal with the generator set after water is injected?
    If your generator set equipment is not processed in time after large-scale water inlet, it will cause great damage to the equipment and accelerate the occurrence of rust and corrosion. Therefore, Haixing recommends that you understand the relevant conventional maintenance methods. 1. Rinse the surface of the diesel engine with water to remove soil and debris, and then use metal cleaning agent or washing powder to remove oil stains on the surface. 2. Push one end of the diesel engine so that the oil drain part of the oil pan is at the lowest position. Rotate the oil drain screw plug and pull out the oil ruler so that the water in the oil pan flows out by itself. When it is about to release the oil, slightly let the oil and water be released together and then rotate the oil drain screw plug. 3. Remove the air filter, remove the upper case of the filter, remove the filter element and other components, remove the water in the filter, and clean each part with metal cleaning agent or diesel. If the filter is plastic foam, wash it with washing powder or soapy water (gasoline is not allowed), then rinse it with clean water and dry it.
  • Sep
    11
    What causes oil leakage in the generator set?
    Oil leakage occurs from generator sets from time to time. Haixing briefly analyzed the parts that are prone to oil leakage and the causes, hoping to help everyone solve the problem. 1. The quality of the purchased or homemade paper pads does not meet the requirements, such as insufficient thickness, improper storage, wrinkles and deformation, or inadequate cleaning, and dust and impurities during assembly, all of which are the causes of oil leakage. copyright by: www.hxdlkj.com 2. The oil pressure is too high, which also causes oil leakage on the static joint surface. 3. The quality of the static joint surface itself is mainly determined by the accuracy of the processing equipment itself and storage and transportation conditions. If the equipment is high in accuracy, the flatness and roughness of the static joint surface can meet the design requirements of the drawing, and pay attention to preventing bumps during storage and transportation, so it is not difficult to achieve complete sealing of the static joint surface. However, because the equipment accuracy and process level of some manufacturers are still low, the storage and transportation conditions and management levels cannot be completed.
  • Aug
    21
    Clogged filter will cause oil pressure to drop
    There are many reasons for the low oil pressure of the generator set. What Haixing wants to explain in detail today is one of the factors that cause this phenomenon, the filter is blocked. copyright by: www.hxdlkj.com When the oil filter is blocked and the oil cannot pass smoothly, the safety valve installed on the filter base will be pushed open, so that the oil directly enters the main oil channel without passing through the filtration. However, if the opening pressure of the safety valve is too high and cannot be opened in time, it will increase the leakage of the oil pump and reduce the oil supply to the main oil duct, and the oil pressure will also decrease. The oil filter should be maintained on time and the safety valve opening pressure should be adjusted correctly to 0.35-0.45MPa. In addition, if the safety valve spring ages and the valve seat and the steel ball are not tightly closed, the oil will leak a lot, causing the oil to foam in the oil pan. At this time, you can see the oil covered with foam when you pull out the dipstick. In addition, the oil pump is oiled
  • Aug
    13
    Common electrical control problems in generator sets
    The electrical control problem of generator sets is a small fault that everyone often encounters during operation. Haixing gives you a few real cases below to facilitate everyone to understand the cause and solution. 1. When the key is turned to 'START', the diesel generator set does not start 1. Check whether the key switch is operating well 2. Check whether there are any defect indications, fix the problem and reset 3. Check the battery voltage. If the voltage is too low, the battery needs to be recharged to full. If the voltage is normal, check whether the voltage signal can be correctly sent to the control link, such as the throttle solenoid valve and the start motor, etc. 4. Check whether the emergency stop button can be relaxed 2. When the 'START' signal is correctly input, but cannot be started manually/automatically 1. Check whether the emergency stop button can be relaxed 2. Check whether the control key is in the 'STOP' position 3. Check whether there are any defect indications, fix the problem and reset 4. Check the battery voltage, if the voltage is too low
  • Aug
    07
    How to prevent cavitation in generator sets?
    The cavitation of the generator set refers to the surface of the outer wall of the wet cylinder liner of the diesel generator set in contact with the coolant, which is damaged into some needle-shaped holes. These holes gradually expand and deepen, and finally form deep holes or cracks. In what ways can the problem of cavernous erosion be prevented? Haixing Power summarized it from three aspects. (1) Usage factor a. The temperature of the coolant that is most prone to cavitation is 40℃-60℃. Therefore, during use, try to keep the coolant at a normal working temperature (80℃-85℃). b. Use the coolant specified by the manufacturer, without hard water or cooling water (liquid) containing more impurities. Experiments show that hard water containing salts and alkalis has a cavitation rate of dozens of times higher than clean soft water. c. Minimize the time of idle speed, heavy load and overload operation. d. Use fuel according to regulations to alleviate the rough work of the diesel generator caused by combustion. (2) Maintenance factors a. Replace according to regulations
  • Jul
    15
    How to judge the fault based on the exhaust gas discharged from Cummins diesel generator
    After the fuel of Cummins diesel generator is completely burned, the normal exhaust color is generally light gray, and when the load is slightly heavy, it is dark gray. During the operation of Cummins diesel generators, abnormal phenomena such as black smoke, white smoke, and blue smoke occasionally occur. It is a condition for judging the failure of Cummins diesel generators. Haixing Power analyzes it as follows: (1) Black smoke diesel is a complex hydrocarbon compound. Unburned diesel sprayed into the combustion chamber is decomposed at high temperature to form carbon black. When exhaust gas is exhausted, black smoke is formed. Black smoke is a manifestation of incomplete combustion of fuel in the combustion chamber. The main influencing factors are as follows: 1. After the piston ring, cylinder liner, etc. wear, the piston ring and cylinder liner are worn, the compression pressure is insufficient, causing the normal proportion of the mixture to change at the end of the compression stroke, causing the fuel to burn under an oxygen-free conditions and produce carbon deposits. 2. The fuel injector does not work well and the fuel injector does not atomize or drip oil, so that the fuel does not
  • Jul
    09
    Pay attention to the use of generator sets in harsh environments
    With the improvement of the technical level of the generator set industry, the scope and fields of products are also expanding and extending. In recent years, under the environment of large-scale expansion of national infrastructure, generator sets have become more and more frequently used in some fields. In order to ensure the service life of the equipment, here is Haixing, here to share the attention paid to the use of generator sets in harsh environments. 1. Engines with generator sets are used in high-altitude plateau areas, especially natural intake engines. When used in plateau areas, due to the thin air, it cannot burn so much fuel like at sea level, and some power is lost. For natural intake engines, the power loss is about 3% for every 300m increase at an altitude. Therefore, when the plateau is indeed working, a lower power should be used to prevent smoke and excessive fuel consumption. 2. Work in extreme cold climates 1) Add to use auxiliary
  • Jun
    26
    What are the reasons for insufficient combustion of diesel generator sets
    When using diesel generator sets, black smoke sometimes occurs, which is caused by insufficient combustion of diesel. Haixing combined many years of practical experience to find that the emergence of black smoke not only causes damage to the working environment, but also shortens the service life of the engine. In order to reduce the damage caused to the generator set by insufficient diesel combustion, Haixing will analyze the reasons for abnormal black smoke from the diesel unit. Insufficient oxygen in the cylinder will cause insufficient combustion of diesel. Insufficient oxygen means insufficient air. The main reasons are in the gas circulation system. The following are several reasons that affect the gas circulation system: 1. The parts of the dispenser mechanism are loose, worn, and deformed, the relative position of the camshaft gear and the crankshaft timing gear changes, and the valve opening and closing time is incorrect. 2. The muffler is corroded, carbon deposits or oil stains. 3. The gap between the inlet and exhaust valves is too large, which reduces the valve opening. 4. Air filter
  • Jun
    19
    How to prevent diesel generator from burning
    With the widespread use of diesel generators in real life, accompanying safety accidents also occur frequently, and it is no longer rare for diesel generator sets to be burned. In order to ensure that the overall normal operation of the production enterprise is not affected, Haixing has summarized the following methods to prevent the diesel generator from being burned. 1. Keep the diesel generator set clean and hygienic. During the operation of the diesel generator set, if dust, water stains and other debris enter the interior, a short-circuit medium will be formed, damage the wire insulation layer, causing a short circuit between turns, and the temperature will rise, which will burn the diesel generator set. Therefore, dust, water stains and other debris should be prevented from entering the inside of the diesel generator set. At the same time, the outside of the diesel generator set should be cleaned frequently to ensure that the heat dissipation of the diesel generator set is good. 2. Regularly check the diesel engine diesel generator set in operation, especially high-power diesel generator sets.
  • Jun
    18
    Causes and solutions for the injector stuck in diesel generator set
    As we all know, fuel injectors are one of the three pairs of fine pairs of diesel engine fuel supply system. After use for a period of time, the fuel injection nozzle often occurs due to improper operation or inadequate maintenance. What exactly causes the diesel engine fuel injector to get stuck, and what method can solve this problem? Haixing Dynamic will give you a brief introduction. 1. Analysis of the reasons why the injector nozzle of the diesel generator set is stuck 1. The diesel is not clean, there are impurities in the high-pressure oil pipe, and the wear of the needle valve pair of the injector needle valve pair makes the needle valve pair not tightly closed, the high-pressure gas in the incineration room flew back, and the needle valve pair is burned. In addition, the dirt on the injector pressure regulating spring, tappet and other parts are moved to the upper part of the injector needle valve through the injector lift, or the cotton rope and lead wire in the oil circuit to avoid oil leakage enter the injector through the high-pressure oil pipe, which will cause the needle valve pair to get stuck. 2. The machine temperature is too high and the injector is poorly cooled, and the tiger ground valve pair card is made
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