Study Of The Method Three Stage Design Of The Mine Pnenmatic Pump

The paper employs the method of three stage design to make analysis on the pneumatic turbine system of the mine pneumatic pump in theory and put it into experiment on the base of the KFB30-18 mine pneumatic pump. At first the form of the turbine blade has been analysed under the theory of aerodynamics and the angle kept tranformation of complex variable function, and thus the analytic formula of pneumatic moment has been deduced. Meanwhile the analytic approach to function extremum being employed, the optimal installing angle of the jet has been gained, and the output power as well as the pneumatic efficiency has been analysed. At the same time ,according to the original parameter of pneumatic pump, the efficiency and flux of the pump have been theoretically amalyseed and calculated, and after that the waterpower of the water wheel has been designed. And then five main factors of the turbine system have been designed under the orthogonal test. The optimal assemblage of the parameter has been gotten by calculating and analyzing the data, thus the parameters of product have been optimized.At last The toleramce design has been fulfilled with the method of inner and outer design integral analyse, the effect of the clear factors on the characteristic and stability of the product has been studied , through which the qulity losing function has been established, and the toleramce of the clear factors have been made sure .The characteristic of the new product designed to the results of our research have been improved a lot. In contrast with the old product, the efficiency has been improved by 10.75% (the old is 13.55%), nearly twice as much as the old; and the noise is reduced by 4.5dB (the old is 85.9dB) . The achievement will do much to technical economy benefit and social benefit.