Reasons for the excessive temperature of the electric diaphragm pump engine and its elimination

Reasons for the excessive temperature of the electric diaphragm pump engine and its elimination

The reason why the temperature of the electric diaphragm pump engine is too high

1. The cooling system is leaking or the cooling water is insufficient;

2. The water temperature indicator indicates inaccuracy or failure;

3. The cooling system has too much scale and poor heat dissipation;

4. The radiator shield net or the radiator core air passage is blocked by debris, resulting in poor heat dissipation;

5. The pump and fan belt are too loose or broken;

6. The pump is damaged, the fan blades are reversed or deformed, and the wind ring is damaged;

7. The thermostat is damaged in the main valve closed position;

8. The engine is overloaded for a long time and the oil supply time is too late.

Exhaust method for high temperature of electric diaphragm pump engine

When the engine has a high water temperature failure during operation, you should observe the fault phenomenon and find out the cause to be eliminated. First, check whether the water temperature meter is malfunctioning. If it is not allowed or failed, it should be replaced. Then check whether the water tank is short of water, whether the water inlet pipe and the radiator are broken and leaking. In addition to direct observation from the outside, you can also check the leaking part by pumping. The leaking part of the radiator can be repaired by soldering. If a heat pipe is broken, the two ends can be blocked. A slight leak was found in the work, which can be blocked with soap and repaired after parking.

If it is not the above reasons, the engine casing should be further inspected for cracks and the water blocking ring is damaged. Also check whether the water pump drain hole leaks. Finally, check if the exhaust valve of the radiator cover is invalid. If it fails, it should be replaced.

If there is no leakage of cooling water, the fault should be analyzed and eliminated in two cases.

1. Suddenly the water temperature is too high. First check if the radiator is overheated. If the temperature of the radiator is too high, it indicates that the cylinder gasket is damaged. At this time, check whether the joint surface of the upper surface of the body and the cylinder head are seriously warped and deformed. If the deformation is correct, repair it in time. If the temperature of the radiator is not high, the cooling water circulation is poor. Check whether the fan belt is broken or severely slipped. If it is normal, check whether the radiator outlet pipe is sucked, whether the inner hole is delaminated or not, and find out the cause to be eliminated. The emergency method is to put a proper large spring support in the suction pipe. Then check if the expansion tube of the thermostat is broken and the rupture should be replaced. If the thermostat is normal, the diaphragm pump is damaged and the pump should be carefully checked.

2. Non-sudden water temperature is too high. For the phenomenon that the temperature is not too sudden, the engine speed should be increased to observe whether the water inlet is turned over, and at the same time, attention is paid to a large amount or a small amount of water. If a large amount of water is turned over and the temperature of the radiator is not uniform, it means that some cooling pipes are blocked, so it should be noted in the cold winter. When the water inlet is slightly turned over and the engine temperature is low and high, it indicates that the water distribution pipe is damaged or blocked and should be replaced in time. If it is not for the above reasons, there may be too much scale in the cooling system and the water passage is not smooth. If the water is not turned over at the water inlet, the exterior of the cooling system and the mechanical parts of the engine should be carefully checked and analyzed. First check if the blinds are closed or the opening is insufficient. The fan is rotating normally. If everything is normal and the engine is still overheating, check the fan air volume. If the air volume is insufficient, adjust the angle of the fan blades and bend the blade head appropriately or change the fan blades. If the engine is still overheating under normal cooling conditions, the cause of use should be considered.

In short, the reason for the overheating of the electric diaphragm pump engine is various, and the above method can be flexibly used for inspection and elimination according to the specific situation.