Water ring vacuum pump is a common type of liquid ring vacuum pump. The liquid ring vacuum pump and multi blade rotor are eccentrically installed in the pump shell. When it runs, it throws the liquid onto the pump shell and creates a liquid ring concentric with the pump shell. Liquid ring and rotor blade produce a variable volume vacuum pump. When the working fluid is water, it is called water ring pump.

    Water ring vacuum pump is mainly used in the process of large vacuum degree and large pumping capacity. It has been widely used in chemical, petroleum, light industry, pharmaceutical and food industries, such as vacuum filtration, vacuum feeding, vacuum concentration, vacuum degassing, etc.

    Working principle of water ring vacuum pump

    Water ring vacuum pump

    When the water ring pump wheel runs in the pump body, the water ring and working chamber are produced. The water ring and the work wheel create a crescent shaped space. The volume of the right half moon changes from small to large, resulting in a suction chamber. The volume of the left half moon changes from large to small, resulting in a compression process (equivalent to the exhaust chamber). The gas pumped by the water ring vacuum pump enters the suction chamber according to the intake pipe. The rotor moves further, and the gas is compressed and discharged according to the exhaust port and exhaust pipe. The discharged gas and water drop into the air. At this time, the water tank is separated from the water according to the exhaust pipe, the gas is discharged into the atmosphere according to the pipe, and the water enters the pump from the water tank, or is discharged according to the water tank.

    The compression ratio of water ring vacuum pump lies in the end position of suction port and the beginning position of exhaust port. The end position of the suction port affects the amount of gas inhaled by the suction chamber; The starting position of the exhaust port affects the amount of compressed gas in the exhaust process. The compression ratio of water ring pump can be calculated.