Design Method And CAD Technology Research On A Methane Chloride High-speed Pump

Nowadays, along with the rapid and tremendous development of science and technology, the design method and manufacturing technology of fluid machine have made a quite great progress. High-speed pump belongs to a specific centrifugal pump, and its appearance has put forward new requests and challenges for those designers. Designing and manufacturing high-speed pumps with independent intelligence property right are in favor of promoting the improvement of level of our country's industry equipments, furthermore, can meet the demand of modern chemical industry production.The article summarizes the basic theories of centrifugal pump, which include impeller theory, resemblance theory, cavitation theory, axial stress & radial stress theory and operation theory so on. Among the impeller theory, impeller slippage coefficient is a very important parameter. A specific opinion is put forward through considering and studying different explanations and applications with different specialists. Considering impact of squeeze coefficient on the slippage coefficient, the article modifies the Stodola's slippage calculation formula. Apart from that, the article studies the drawing methods about cylinder impeller lamina, which we can always meet in the low specific rotate speed centrifugal pump. The article suggests that it's better to utilize multi-arc drawing method and shift-angle logarithm helix drawing method.Through utilizing these impeller theories above, the article is aimed at researching homemade methane chloride high-speed pump, which is applied in the chemical process in Zigong Honghe Chemical Co. Ltd. After deep and detailed...