If the temperature of the oil seal rotary vane vacuum pump exceeds 70, pay attention to whether the vacuum pump fails or the temperature at the joint is too high, so as to eliminate the fault and ensure the normal use of the vacuum pump. Some friends are helpless when they encounter this problem. EVP company described the solution of too high temperature of oil seal rotary vane vacuum pump, vacuum water diversion device system scheme, vacuum pump maintenance and after-sales maintenance service, etc.
Today, Xiaobian shares with you a solution to this problem. After the heat, you can face it calmly.
The fan speed is low, and the air pressure and air volume are small. The motor has high power, large working current and high calorific value. The number of fan blades is small, resulting in less air. The bus voltage of the oil seal rotary vane vacuum pump motor is 380 v. due to the uneven cable voltage drop and load distribution, the actual voltage applied by the motor is only 365 v. the low voltage leads to high operating current. The motor has dust and oil stain, which reduces the heat dissipation capacity.
Countermeasures: the power and speed of the motor match the vacuum pump and cannot be changed. The electric fan equipment is installed on the main shaft of the motor, and the speed of the motor determines the speed of the electric fan, so it cannot be replaced. Although increasing the number of fan blades can play a certain role, it is difficult to find dynamic balance after increasing the number of blades. If the alignment is not good, the oil ring vacuum pump will cause the motor vibration to increase. The original fan cover is lengthened by 40 cm, and an axial fan with the same diameter as the fan cover is installed inside. The motor power of axial flow fan is 850 watts, the speed is 1 489 rpm and the voltage is 380 volts. Keep the original fan.
Another power control is provided, and the axial fan is not interlocked with the main motor. After the oil seal rotary vane vacuum pump is started, start the axial flow fan in time, and stop the axial flow fan 30 minutes after the vacuum pump is stopped to fully cool the main motor; Regularly remove the dust on the motor, keep the motor radiator clean and increase the heat dissipation capacity; Adjust the voltage of the bus vacuum pump to 400 volts.
It should be reminded that when the vacuum pump manufacturer wants to repair the vacuum pump, it can be found that the temperature of the vacuum pump is too high to find an effective solution. The above is about the high temperature of vacuum pump. If you want to know more, please continue to follow us.
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