Causes and elimination of over high temperature of

2022-07-24
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Causes and elimination of excessive engine temperature of electric diaphragm pump

causes and elimination of excessive engine temperature of electric diaphragm pump: causes of excessive engine temperature of electric diaphragm pump: 1. water leakage in cooling system or insufficient cooling water; 2. the indication of water temperature gauge is inaccurate or out of order; 3. the cooling system has too much scale and poor heat dissipation effect; 4. the radiator shield or radiator core ventilation duct is blocked by sundries, resulting in poor heat dissipation; 5. the water pump and fan belts are too loose or broken; 6. the water pump is damaged, the fan blade is installed reversely or deformed, and the wind ring is damaged; 7. the thermostat is damaged at the closed position of the main valve; 8. the engine runs overloaded for a long time and the fuel supply time is too late. Troubleshooting for high engine temperature of electric diaphragm pump: when the engine has the fault of high water temperature during operation, pay attention to observe the fault phenomenon, find out the cause and eliminate it. First, check whether the water temperature gauge is out of order. If not, replace it; Then check whether the water tank is short of water and whether the water inlet pipe and radiator are broken and leaking. In addition to direct observation from the outside, the method of pumping air can also be used to check the leaking part. The leaking part of the radiator can be repaired by tin welding. If a radiator pipe is seriously broken, the two ends can be flattened and blocked. It is found that there is a slight water leakage during the work. The Ferrograph consists of three parts, which can be blocked with soap and repaired after the shutdown. If it is not known for the above reasons, further check whether the engine housing is cracked, whether the water stop ring is damaged, and whether the water pump drain hole is leaking. Finally, check whether the exhaust valve of the radiator cap is invalid. If it is invalid, replace it. If the problem is not cooling water leakage, the fault shall be analyzed and eliminated in two cases. 1. sudden high water temperature. First, check whether the radiator is overheated. If the radiator temperature is too high, it means that the cylinder gasket is damaged. At this time, pay attention to check whether the upper plane of the engine body and the joint surface of the cylinder head are seriously warped and deformed. If it is deformed, repair it in time. If the temperature of the radiator is not high, it indicates that the cooling water circulation is poor. Check whether the fan belt is broken or seriously slipping. If it is normal, check whether the radiator outlet pipe is shrunken and whether the inner hole is blocked by delamination. Find out the cause and eliminate it. The emergency method is to put an appropriate large spring support in the shrunken pipe. Then check whether the expansion cylinder of the thermostat is broken, and replace it if it is broken. If the thermostat is normal, it indicates that the diaphragm pump is damaged, and the water pump should be carefully inspected and repaired. 2. non sudden high water temperature. For the phenomenon that the temperature is not too high suddenly, the engine speed should be increased to observe whether the water inlet is turned over, and whether it is 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 uneven, it means that some cooling pipes are blocked, which should be paid more attention in the cold winter. When a small amount of water is turned over at the water inlet and the engine temperature is low before and high after, it indicates that the water distribution pipe has been damaged or blocked and should be replaced in time. If it is not for the above reasons, it may be that there is too much scale in the cooling system and the water channel is not smooth. If the water filling port does not turn over, the appearance of the cooling system and the mechanical part of the engine shall be carefully checked and analyzed. First, check whether the shutter is closed or the opening is insufficient, and whether the fan rotates normally. If everything is normal, and pay special attention to check whether the motor is still overheated when measuring PS, then check the fan air volume. If the air volume is insufficient, the angle of the fan blade shall be adjusted, and the blade head shall be properly bent or changed. If the engine is still overheated under normal conditions of the cooling system, the reasons for use should be considered. In a word, let's take a look at the differences between domestic and imported experimental machines. There are many reasons for overheating of membrane pump engine. The above methods can be flexibly used to check and eliminate according to specific conditions

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