Nuclear reactor coolant pump and passive stopping seal assembly thereof
A technology for coolant pumps and nuclear reactors, which is applied in the field of nuclear power, can solve the problems of shaft seal assembly manufacturing difficulty and cost increase, many components assembled, seal failure, etc., and achieve the effect of simple structure and firm seal
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[0043] In order to make the objectives, technical solutions and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for explaining the present invention, not for limiting the present invention.
[0044] The nuclear reactor coolant pump of the present invention includes an electric motor, a static pressure shaft seal assembly and a hydraulic component arranged in order from top to bottom, and a pump shaft that penetrates the center of the entire main pump; the reactor coolant is pumped by an impeller installed at the lower end of the pump shaft It is sucked through the bottom of the pump casing and flows upward through the impeller, and then discharged through the guide vane and an outlet on the side of the pump casing.
[0045] The hydrostatic ...
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