Multistage centrifugal water make-up pump for nuclear power plant chemical and volume control system

一种核电站化学与容积控制系统用多级离心补水泵

Abstract

The invention discloses a multistage centrifugal water make-up pump for a nuclear power plant chemical and volume control system. The multistage centrifugal water make-up pump comprises a pump barrel, a bearing part, a pump cover, sealing bodies, a pump cartridge and a balancing device, wherein a placement cavity is formed in the pump barrel; the bearing part comprises a driving end bearing part and a non-driving end bearing part; the pump cover is mounted at one end of the pump barrel; the sealing bodies are respectively arranged at both ends of the pump cover on the pump barrel; the pump cartridge is arranged in the placement cavity of the pump barrel in a detachable manner; the pump cartridge comprises a rotating part and a non-rotating part; the rotating part is arranged in the non-rotating part; the rotating part rotates to do work in the non-rotating part; gaps are reserved between the rotating part and the non-rotating part in both the axial and radial directions; the balancing device comprises a balance drum and a balancing sleeve; the balance drum is fixedly mounted on the rotating part; the balancing sleeve is fixedly mounted on the pump cover. The multistage centrifugal water make-up pump has a compact structure and meets the limitation, which is required by a nuclear power plant, to the size of a disassembling space; a shaft is thicker; a bearing span is short; a rotor has high rigidity; the multistage centrifugal water make-up pump has high running reliability.
本发明公开了一种核电站化学与容积控制系统用多级离心补水泵,所述多级离心补水泵包括:泵筒体,所述泵筒体内设置有安置腔;轴承部件,所述轴承部件包括驱动端轴承部件和非驱动端轴承部件;泵盖,所述泵盖安装在泵筒体一端;密封体,所述密封体分别设置在泵筒体上的泵盖两端;泵芯包,所述泵芯包可拆卸的安置在泵筒体的安置腔内,所述泵芯包包括旋转部件和非旋转部件,所述旋转部件设置在非旋转部件内,所述旋转部件在非旋转部件内旋转做功,所述旋转部件与非旋转部件之间在轴向及径向均留有间隙;平衡装置,所述平衡装置包括平衡鼓和平衡套,所述平衡鼓固定安装在旋转部件上,所述平衡套固定安装在泵盖上。本发明结构紧凑,满足核电站要求的拆装空间尺寸限制,且轴较粗,轴承跨距短,转子刚性强,运转的可靠性高。

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    CN-105351207-AFebruary 24, 2016上海电气凯士比核电泵阀有限公司Charging pump