The problem of over-temperature of the vacuum pump has been plaguing the users. Long-term high temperature will shorten the service life of the vacuum pump. Today we will do some research on this to see what causes the overheating of the vacuum pump and how to solve them. The right medicine to the disease in addition to effectively solve the problem of excessive vacuum pump temperature 　　 Vacuum pump over the issue of temperature has been plagued by the majority of users, then how to make the vacuum pump to avoid heat, thereby extending the service life? 　　 We studied the problem, what time to bring you some summer vacuum pump tips! 　　 Etiology: 　　 1. Motor power is too large, the current is too large, it will increase the temperature of the vacuum pump. 　　 2. The number of fan blades is not enough, there is not enough air volume, resulting in increased vacuum pump temperature. 　　 3. Fan speed is too low, wind pressure, lack of wind. 　　 4. Vacuum pump motor where the bus voltage is 380V, due to the cable voltage drop and load distribution is not uniform, the actual motor voltage is only 365V, low voltage caused by running current. 　　 5. There are too many electric motor dust, grease, stains is also one of the factors leading to increased temperature of the vacuum pump. 　　 Right remedy: 　　 Motor power, speed and vacuum pump match, can not be changed. Fan mounted on the motor shaft, the motor speed determines the fan speed, it can not be replaced. Although increasing the number of fan blades can play a role, but the increase in the number of blades, the dynamic balance is not easy to find, such as finding is not good, will cause increased motor vibration. 　　 1. The original vacuum pump fan cover extended 40cm, in which the installation of a fan and the same diameter axial fan, axial fan motor power 850W, speed 1489r / min, voltage 380V. The original fan to keep. Axial flow fan set up all the way to power control, axial fan and the main motor without a chain. After the start of the vacuum pump to start the axial fan operation in time, the vacuum pump outage after 30min out of axial fan, so that the main motor is fully cooled; 　　 2. Regularly clear the vacuum pump motor dust, keep the motor heat sink clean, increase its cooling capacity; 　　 3. The bus where the vacuum pump voltage is adjusted to 400V. 　　 Medicine to the sick: 　　 1. As the axial fan speed, wind pressure air volume, the cooling effect is greatly enhanced in the same ambient temperature, load current, vacuum pump main motor temperature dropped 12 ℃. Summer main motor temperature no longer exceeded. 　　 2. Reduce the aging of the main motor insulation aging, extending its life. 　　 3. Axial fan can be artificially controlled, the main motor is out of service, the axial fan can still run, you can make the main motor is fully cooled. 　　 4. Voltage adjustment, the diaphragm pump current down to 210A, the relative decrease in heat. 　　 5. Try to balance the load of 2 sections of busbar to prevent the voltage drop of some busbar due to overload. 　　 Through the study of the high temperature of the vacuum pump, we found that the high temperature of the vacuum pump is mainly caused by the heating of the motor, so the main solution is also around the vacuum pump motor.