Water ring vacuum pump

Water ring vacuum pump is a vacuum pump used for pumping underground biogas. This vacuum pump has high negative pressure, low flow rate, and is suitable for use in mines with small pumping volume and high negative pressure requirements. The water ring vacuum pump has good performance, and generally requires high negative pressure for pumping in mines, so it is widely used

A water ring vacuum pump (abbreviated as a water ring pump) is a type of coarse vacuum pump that can achieve a vacuum of 2000-4000Pa, and can be connected in series with an atmospheric injector to reach 270-670Pa. A water ring vacuum pump can also be used as a compressor, called a water ring compressor. It is a low-pressure compressor with a pressure range of 1-2 × 105Pa gauge pressureThe water ring vacuum pump was initially used as a self suction pump, and later gradually used in many industrial sectors such as petroleum, chemical, machinery, mining, light industry, medicine, and food. In many industrial production processes, water ring vacuum pumps are widely used. Due to the rapid development of vacuum application technology, water ring vacuum pumps have always been valued in obtaining coarse vacuum. Due to the isothermal gas compression in the water ring vacuum pump, it can remove flammable and explosive gases, as well as gases containing dust and water. Therefore, the application of water ring pumps is increasingIn short, due to the isothermal gas compression in the water ring vacuum pump, flammable and explosive gases can be extracted. Due to the lack of exhaust valves and friction surfaces, it is possible to remove dusty gases, condensable gases, and gas water mixtures. Despite its low efficiency, it has been widely applied with these outstanding features

Inspection and Maintenance of Water Ring Vacuum Pump

(1) When the water ring vacuum pump is running normally, attention should be paid to checking the operation and lubrication of the bearings.

. Normal working bearings should be lubricated 3 to 4 times a year, cleaned at least once a year, and all lubricating oil should be replaced(2) The water ring vacuum pump should also be regularly compressed and packaged during normal operation. If the packaging cannot achieve the required sealing performance due to wear and tear, please replace it with a new packaging. If a mechanical seal is used and leakage is found, please check if the mechanical seal of the mechanical seal is damaged or if the auxiliary seal is aging. If any of the above situations occur, new parts need to be replacedWhen the water ring vacuum pump makes a sound, the pressure plates at both ends of the cover can be removed to check whether the impeller end face is damaged by the distributor and whether the exhaust valve plate is normalBefore disassembly, the water inside the pump chamber should be drained. The gas-water separator and suction pipe components should be removed, and all gaskets should be carefully removed during the disassembly process. If there is any damage, the same gasket should be replaced. The pump should be disassembled from the rear end (without coupling or pulley) in the following order:

(1) Remove the bearing cover, loosen the two round nuts with a hook wrench, and remove the bearing seat and bearings

(2) Loosen the packing gland nut and remove the packing gland(3) After removing the hexagonal bolts connecting the pump cover to the pump body and the bolts at the bottom of the pump cover, remove the rear cover(4) Remove the pump body(5) Loosen the other end foot bolt(6) Remove the coupling and remove the key from the shaft(7) Remove the front bearing components(8) After removing the front cover, take out the shaft and impeller togetherAfter disassembly, the relevant mating surfaces on the parts should be coated with engine oil, and the threads should also be protected with engine oil