liquid ring vacuum pump suction vent

The influence of the position of suction and exhaust hole on pump performance of liquid ring vacuum pump was studied. Through technical renovation project, the concept of critical compression ratio of liquid ring pump and its influence on pump performance are theoretically expounded, and the relationship between suction and exhaust hole area and opening position of liquid ring pump and compression ratio is analyzed. When the operating condition of the pump exceeds the critical compression ratio, how to reduce the flow loss of the pump to the minimum by modifying the internal structure and how to achieve high performance of the pump have important reference significance for future project application and system transformation.

liquid ring pump as a varactor type gas conveying equipment, gas can not only as a vacuum pump suction as well as make the system get the negative pressure, and can be used as compressor compressed gas so as to make the system get positive pressure, but neither as a vacuum pump and compressor, its internal liquid ring volume changes in implementation of suction and exhaust principle is the same, so for liquid ring pump work under different states, basic unity can be divided into several stages to do research. The working principle of the flat disk type liquid ring pump is to use the impeller eccentricity installed in the pump body, the impeller will rotate the liquid in the pump chamber to the four sides, the formation of unequal thickness of the liquid ring in the pump chamber, by the liquid ring, adjacent blades form alternating change of space to complete the suction and exhaust effect. Gas delivery channel is designed in the flat disk size crescent space, but their role is not only "channel", suction and exhaust hole opening size and location of the impact on pump performance is very obvious.

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