A Design Method Based on TRIZ Theory to Enhance the Base Pressure of Roots Vacuum Pump
Using the causal analysis of TRIZ theory as a research tool,the basic reason and weakness that affect the base pressure of Roots vacuum pumps were obtained.The seal structure and rotor profile of the Roots vacuum pump were improved based on the enlightenment of the technological contradiction and the law of technological system evolution solution model,and then the ZJP70 Roots vacuum pump was optimized.The test results show that the base pressure of the optimized Roots vacuum pump is significantly increased under the same conditions.At the same time,the key indicators such as maximum zero flow compression ratio,overall leakage rate,and noise achieve significant improvement.
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