Deep-well centrifugal pump with two thrust bearing pairs on each impeller
A thrust bearing and centrifugal pump technology, which is applied to the components, pumps, and pump components of pumping devices for elastic fluids, can solve the problems of reduced pump efficiency, damage, limited ability to withstand axial forces, etc. The effect of long service life, simple solution and low manufacturing cost
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[0014] figure 1 The embodiment shown is a well submersible pump in which both the impeller 7 and the deflector shell 14 are made of engineering plastics. It is also a deep well centrifugal pump. It consists of a two-stage impeller 7 and a deflector shell 14 together with an inlet section 1 and A water outlet section 15 is connected in series. The impeller 7 is a closed impeller with a front cover 6 of the impeller and a rear cover 8 of the impeller. The diameter of the rear cover 8 of the impeller is smaller than the diameter of the front cover 6 of the impeller. The impeller has been lowered. The impeller inlet adopts end face seal. The impeller inlet end face seal pair is composed of the moving ring 5 sealed on the impeller inlet end face and the static ring 4 sealed on the impeller inlet end face. The material is stainless steel plate and engineering plastics, and it is also a thrust that can withstand the axial force. For the bearing pair, the fit between the impeller shaf...
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