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Taboos for using diesel generator sets in winter

May 17, 2022
The humidity, altitude and temperature of the working environment of the diesel generator set will affect the operation of the generator set. Users should remember the following taboos when using diesel generator sets in winter. Users who use diesel generator sets in alpine areas in winter should pay special attention to correct operation of diesel generator sets. generator set to extend the service life of the set.
Today, the country ushered in a cliff-like cooling, and the diesel generator set also ushered in a cold winter after the high-load work in the midsummer. JUNVOCH reminds you that the humidity, altitude and temperature of the working environment of diesel generator sets will affect the operation of the generator set. Users should remember the following taboos when using diesel generator sets in winter, and operate the diesel generator sets correctly to prolong the service life of the generator set.
1. Diesel generator sets are not allowed to operate under low temperature load
After the diesel generator set started to catch fire, some users couldn't wait to put the load into operation immediately. Due to the low temperature of the body and the high viscosity of the oil, the oil is not easy to fill the friction surface of the moving pair, which will cause serious wear and tear of the machine. In addition, plunger springs, valve springs and injector springs are also prone to breakage due to "cold brittleness". Therefore, after the diesel generator set starts to catch fire in winter, it should be idling at low and medium speed for a few minutes, and then put into load operation when the cooling water temperature reaches 60 °C.
2. Do not use an open flame to support combustion
Do not remove the air filter, use cotton yarn dipped in diesel fuel to ignite and then make a kindling material and place it in the intake pipe to start the combustion. In this way, during the start-up process, the outside dusty air will be directly sucked into the cylinder without being filtered, causing abnormal wear of the pistons, cylinders and other parts, and will also cause the diesel generator set to work rough and damage the machine.
3. Do not use fuel at will
The low temperature in winter makes the fluidity of diesel oil worse, the viscosity increases, and it is not easy to be scattered, resulting in poor atomization and deterioration of combustion, resulting in a decline in the power and economic performance of diesel generator sets. Therefore, light diesel oil with low freezing point and good ignition performance should be selected in winter. It is generally required that the freezing point of diesel generator sets should be 7-10°C lower than the local minimum temperature in the current season.
4. Do not use an open flame to bake the oil pan
Baking the oil pan with an open flame will deteriorate or even burn the oil in the oil pan, reducing or completely losing lubricating properties, thereby aggravating machine wear. In winter, oil with a low freezing point should be used, and the temperature of the oil can be increased by heating the water bath outside the machine when starting.
5. Do not release water too early or do not release cooling water
The diesel generator set should run at idle speed before turning off the flame. After the cooling water temperature drops below 60°C and the water is not hot, turn off the flame and drain the water. If the cooling water is released prematurely, the diesel generator body will suddenly shrink and crack when it is suddenly attacked by cold air when the temperature is high. When the water is drained, the residual water in the diesel generator set should be completely discharged to prevent it from freezing and expanding and causing the body to burst and crack.