The wrong operation of gas generator set will seriously affect the service life of gas generator set. Let's understand the wrong operation mode of gas generator set in daily life?
Wrong operation 1: operate when the oil is insufficient. At this time, due to the lack of oil supply, the surface of each friction pair will be lack of oil supply, resulting in abnormal wear or burn. For this reason, before starting the gas generator and during the operation of the diesel engine, it is necessary to ensure that the engine oil is sufficient to avoid cylinder pulling and tile burning due to lack of oil.
Wrong operation 2: stop the machine immediately after the load is taken off or the load is suddenly removed. Only when the cooling system water circulation stops after the generator of the unit is flamed out can the heat dissipation be sharply reduced, and the heated parts lose cooling, which is easy to cause overheating of the cylinder head, cylinder sleeve, cylinder block and other parts, resulting in cracks, or the excessive contraction of the piston stuck in the cylinder liner. On the other hand, when the generator is stopped without idling, the oil content on the friction surface will be deficient, and the wear will be aggravated due to the poor smoothness when it is started again. Therefore, the gas generator should be unloaded before flameout, and gradually reduce the speed, no-load operation for several minutes.
Wrong operation 3: the machine runs with load without warming up after cold start. When the gas generator cold engine starts, due to the high viscosity and poor mobility of the oil, it is the lack of oil supply for the oil pump. Because of the lack of oil, the friction surface of the machine is not smooth, resulting in sharp wear and tear, resulting in cylinder pulling, tile burning and other defects. Therefore, after cooling and starting, the engine should be operated at idle speed and heated up. When the oil temperature reaches 40 ℃ or above, the engine should be operated with load. When starting the machine, the engine should be put into low gear and drive for a certain mileage in each gear in sequence until the oil temperature is normal and the oil supply is sufficient.
Wrong operation 4: after cold start, bang the accelerator. If the accelerator is slammed, the rotating speed of the gas generator will rise sharply, and some friction surfaces on the machine will be severely worn due to dry friction. In addition, the acceptance force of piston, connecting rod and crankshaft changes greatly when the accelerator is flashed, which causes violent impact and easily damages the parts.
Wrong operation 5: operation under the condition of lack of cooling water or excessive temperature of cooling water and engine oil. The lack of cooling water for gas generator will reduce its cooling effect, and it will overheat due to the lack of effective cooling; the high temperature of cooling water and oil will also cause overheating of diesel engine. At this time, the main heating load of gas generator cylinder head, cylinder sleeve, piston assembly and valve is large, and its mechanical properties such as strength and toughness drop sharply, which increases the deformation of parts, reduces the fitting clearance between parts, accelerates the wear of parts, and even causes the problems of crack and stuck parts. The overheating of gas generator will worsen the extinction process, make the injector work abnormally, atomize badly and accumulate more carbon.
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