Circulator pumps are often called liquid ring, because as a working fluid in them, mainly water is used, and sometimes machines with liquid piston. Eccentrically located rotor with radial blades (impeller) rotates in a cylindrical body, which is partially filled with liquid. Blades of the impeller rotation capture liquid and discard it to the body. As a result, inside the rotating ring of liquid formed, which gave the name of this type of pump.
Between the hub of the impeller and the ring of liquid occurs space, which is working cavity of the machine. This space is divided blades of the impeller on the individual cells of variable volume. With an increase in cell volume is the suction process, and when the – the process of compression and injection.
The compression process in the pump is accompanied by intensive heat removal from the compressed gas to liquid. Szhimaemogo temperature of gas at the pump outlet is little different from the temperature at the inlet and the working fluid is heated, so it must be constantly replaced. The working fluid is either into the suction pipe or through a hydraulic seal of the impeller into the working cavity of the machine and goes through the injection window, along with the compressed gas. The main advantage of Circulator pumps – easy work. The pump consists of a small number of parts – body, impeller and two end caps.
Oct 15th, 2010
