Vacuum pump refers to the components or machinery and equipment that vacuum the evacuated vessels by means of mechanical equipment, physics, organic chemistry or physics. In terms of popularization, vacuum pump is the equipment that improves, creates and maintains vacuum pump in a closed in various ways. Vacuum pump The structure inside the vacuum pump of the vacuum pump manufacturer is very simple, but the installation gap is small. When the gap between the centrifugal impeller plan and the disc plan is maintained at 0.2mm, the vacuum pump can be caused normally. When the gap between the disc and the centrifugal impeller is too large, the vacuum value of the vacuum pump will be reduced or there will be no vacuum value. If the gap is too long, the operation of the motor is laborious and it is very easy to damage the motor. The water ring vacuum pump of the vacuum pump manufacturer uses tap water as cutting fluid, which is low-cost. Because the water bodies in various regions are different, some water bodies are hard. After the vacuum pump is used for a period of time, it is very easy to cause dirt in the pump (the same as the milky dirt in the boiling teapot). The gap between the disc and the centrifugal impeller becomes small, and the dirt in the pump is not eliminated at this moment, The motor runs hard and is very easy to damage the motor or crush the centrifugal impeller. The treatment method is to add the boiler descaling agent to the pump (it is not necessary to disassemble the pump). After 20 minutes, clean it with cold water. Pay attention not to discharge the boiler descaling agent into the cold circulating water of the vacuum pump. If it is difficult to buy boiler descaling agent, dilute hydrochloric acid can be used to solve it. Sulfuric acid has slight corrosion on the pump, which is not better than using boiler descaling agent. The water replenishing and moisturizing relay of the vacuum pump gas-liquid separator of the vacuum pump manufacturer can not be opened normally. The bypass valve must be manually opened to replenish water and moisturize the separation equipment. After on-the-spot inspection, it was found that the floating ball level gauge of the water pump pressure switch installed in the separation equipment was full of dirt, resulting in the magnetic induction switch can not be in all normal positions. As a result, when the separation equipment is in the low level instrument, the PLC did not receive the data signal of the low level instrument and sent out the instruction to open the water replenishment and humidity protection relay, so that the relay can be opened automatically.