Analysis of five reasons for excessive temperature of diesel engine fire pump
Diesel engine fire pump engine cooling adopts double closed cycle heat exchanger cooling system, which has the advantages of high cooling efficiency and little influence on the ambient temperature of the pump room. The flow direction of cooling water from the water pump outlet pipe to the heat exchanger is regulated and controlled by the ball valve, so that the water temperature of the engine body cooling water is kept between 85℃ and 95℃ during operation. If the water temperature is too high, the ball valve opening can be increased, the heat dissipation capacity of the heat exchanger can be increased, and the water temperature of the engine cooling water can be reduced; On the contrary, can close the ball valve opening, increase the temperature of the engine cooling water.Diesel Portable fire pump
If the diesel engine fire pump group is automatic control fire pump group, add a solenoid valve and ball valve in parallel on the hot traffic pipeline. Under normal circumstances, the electromagnetic valve is closed, the cooling water through the gate that route can meet the requirements of engine cooling, when the engine cooling water temperature over 95 ℃, the electromagnetic valve will open automatically, increase the cooling water flow rate, reduce the temperature of the engine cooling water, such as 20 seconds later, the diesel engine water temperature is over 95 ℃,
the automatic control system will send out sound and light alarm, Call personnel to the site to check the cause.
Diesel engine fire pump temperature is too high for the following reasons:
1, diesel engine load is too heavy. Therefore, in the fire pump operation to avoid the diesel engine high-speed overload operation;
2, diesel engine fire pump oil radiator blocked, resulting in poor heat dissipation;
3. The position of the oil temperature regulating switch is improper, and the oil has not been cooled by the radiator in summer;
4, the cylinder leakage, high temperature gas into the oil pan, heating the oil pan;
5. The cooling fan speed of the air cooler is too low, which reduces the cooling intensity and increases the body temperature of the diesel engine.
Post time: Sep-21-2022