Analysis of 5 reasons for the high temperature of diesel engine fire pump
The engine cooling system of the diesel engine fire pump adopts double closed-loop heat exchangers. The system has the advantages of high cooling efficiency and little impact on the ambient temperature of the pump room. The cooling water flow direction is controlled by a ball valve from the pump outlet pipe to the heat exchanger, so that the cooling water temperature of the machine body is between 85 and 95 °C. If the water temperature is too high, you can increase the opening of the ball valve, increase the heat dissipation capacity of the heat exchanger, and reduce the temperature of the engine cooling water.
There are several reasons why a diesel engine fire pump can overheat:
1: The diesel engine fire pump is overloaded. Therefore, in the operation of the fire pump, the high-speed and overload operation of the diesel engine must be avoided;
2: The oil radiator of the diesel engine fire pump is blocked by foreign matter, resulting in poor heat dissipation;
3: The position of the oil temperature adjustment switch of the diesel engine fire pump is incorrect. In summer, the oil will not dissipate heat through the radiator;
4: The cylinder of the diesel engine fire pump leaks, high-temperature gas enters the oil pan, and heats the oil in the oil pan;
5: The cooling fan speed of the air cooler of the diesel engine fire pump is too low, which reduces the cooling intensity and increases the body temperature of the diesel engine.