Mechanical Pump in Vacuum System or Unit

When checking, the pump should be isolated before checking. Firstly, isolate the suspicious parts of the system from the valve to the vacuum pump: valve, flange, pipeline weld turning and do meticulous leak detection. Usually, the vacuum gauge method is used, that is, brush, alcohol, acetone and other organic solvents are applied one by one on the suspicious parts and the inlet seams of the pump, at the same time, the change of the vacuum gauge or glow color is observed.

When it is found that the vacuum gauge shakes or purple glow turns Milky white, it is possible to determine the leakage of the painted part. When the leakage gap is small, this method is difficult to detect. A more sensitive method should be adopted to detect the leakage. If there is a leak, it can be repaired. If there is something wrong with the vacuum pump itself, the pump should be removed from the system for maintenance. First try the inspection method without dismantling the pump, such as refueling, oil change, oil transfer line and so on. If it works, it will be better.

The wear and scratch of the end cover plate can be removed by means of scraping and grinding with trucks and shovels. Dimensions are not subject to such strict restrictions. After turning, it can be coated with red Dan ointment (adjusted oil) on grade 0 flat plate. After grinding with the end cover plate for several times, the end cover can be removed for inspection. Usually, if there are 4-5 points (bright spots) in the average area of 25 square millimeters on the end cover surface, the end cover and the end face of the pump chamber should be grinded carefully by hand, that is, 1000 grinding sand will be used to grind the end cover and the end face of the pump chamber to each other. You can't see scratches. When grinding with a surface grinder, the grinding accuracy should be above two levels, preferably one.

Roots Liquid Ring Vacuum Pump System

Air ejector liquid ring vacuum pump system