CN100532861C - 一种带便拆式机械密封结构的进出水段 - Google Patents

一种带便拆式机械密封结构的进出水段 Download PDF

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CN100532861C
CN100532861C CNB2007100714938A CN200710071493A CN100532861C CN 100532861 C CN100532861 C CN 100532861C CN B2007100714938 A CNB2007100714938 A CN B2007100714938A CN 200710071493 A CN200710071493 A CN 200710071493A CN 100532861 C CN100532861 C CN 100532861C
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chamber
suction chamber
outlet section
pump
water inlet
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CN101135321A (zh
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赵国忠
赵才甫
沈国连
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NANFANG PUMP INDUSTRY CO LTD
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沈金浩
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Abstract

本发明是涉及一种带便拆式机械密封结构的泵进出水段，主要包括进出水段，所述进出水段的吸入室和压出室由内外二个同心圆构成，内圆腔体作为吸入室，外圆腔体作为压出室，其中吸入室通过封闭的流道与进口管相连通，而压出室则直接与出口管连接；泵轴的一端从吸入室穿过与电机轴相连接，另一端与叶轮连接；泵轴与吸入室的连接处设有密封装置。本发明有益的效果是：从根本上解决了背景技术中存在的机械密封位于高压区内、需承受叶轮所产生的全部压力的问题。从而降低了对密封承受高压的结构要求，提高密封的可靠性和使用寿命。

Description

一种带便拆式机械密封结构的进出水段
技术领域
本发明涉及水泵部件制造领域，主要是一种带便拆式机械密封结构的泵进出水段。
背景技术
目前现有的泵的进出水段或泵体上都不带密封安装结构，密封都是装在与进出水段或泵体相配合的泵盖上，即位于叶轮的背面部位。密封处于进出水段或泵体的压出室高压区。其不足之处：一是密封需承受叶轮所产生的高压，使密封所承受的比压增大，使用寿命缩短。二是密封的使用工况受到限制，不能用于高压结构或超高压结构。
发明内容
本发明要解决上述现有技术的缺点，而提供一种带便拆式机械密封结构的泵进出水段。
本发明解决其技术问题采用的技术方案：这种带便拆式机械密封结构的泵进出水段，主要包括进出水段，所述进出水段的吸入室和压出室由内外二个同心圆构成，内圆腔体作为吸入室，外圆腔体作为压出室，其中吸入室通过封闭的流道与进口管相连通，而压出室则直接与出口管连接；泵轴的一端从吸入室穿过与电机轴相连接，另一端与叶轮连接；泵轴与吸入室的连接处设有密封装置。
本发明有益的效果是：从根本上解决了背景技术中存在的机械密封位于高压区内、需承受叶轮所产生的全部压力的问题。从而降低了对密封承受高压的结构要求，提高密封的可靠性和使用寿命。
附图说明
图1是本发明的安装结构剖视示意图；
图2是本发明的仰视结构示意图；
附图标记说明：进口管1，进出水段2，吸入室3，密封装置4，泵轴5，压出室6，出口管7，叶轮8。
具体实施方式
下面结合附图对本发明作进一步说明：
如图1和2所示，这种带便拆式机械密封结构的泵进出水段，主要包括进出水段2，所述进出水段2的吸入室3和压出室6由设置在同一平面上的内外二个同心圆构成，内圆腔体作为吸入室3，外圆腔体作为压出室6，其中吸入室3通过封闭的流道与进口管1相连通，而压出室6则直接与出口管7连接；泵轴5的一端从吸入室的中心3穿过与电机轴相连接，另一端与叶轮8连接；泵轴5与吸入室3的连接处设有密封装置4。
安装过程：图1的上边为电机侧，下边为泵内过流零件侧，把进出水段2安装在电机支架上，然后安装叶轮8和导叶等水力部件。再把机械密封装置4从进出水段2的背面、电机支架处装入泵轴5，泵轴5与电机轴采用联轴器连接。
除上述实施例外，本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本发明要求的保护范围。

Claims (4)

1、一种带便拆式机械密封结构的泵进出水段，包括吸入室(3)和压出室(6)，其特征是：所述进出水段(2)的吸入室(3)和压出室(6)由内外二个同心圆构成，内圆腔体作为吸入室(3)，外圆腔体作为压出室(6)，其中吸入室(3)通过封闭的流道与进口管(1)相连通，而压出室(6)则直接与出口管(7)连接；泵轴(5)的一端从吸入室(3)穿过与电机轴相连接，另一端与叶轮(8)连接；泵轴(5)与吸入室(3)的连接处设有密封装置(4)。
2、根据权利要求1所述的带便拆式机械密封结构的泵进出水段，其特征是：所述的吸入室(3)和压出室(6)设置在同一平面上。
3、根据权利要求1或2所述的带便拆式机械密封结构的泵进出水段，其特征是：所述的泵轴(5)从吸入室(3)的中心穿过。
4、根据权利要求1所述的带便拆式机械密封结构的泵进出水段，其特征是：所述进出水段(2)安装在电机支架上。
CNB2007100714938A 2007-09-30 2007-09-30 一种带便拆式机械密封结构的进出水段 Active CN100532861C (zh)

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CN103758786B (zh) * 2014-01-20 2017-01-25 浙江同心力机电科技有限公司 多级离心泵之进出水基座
CN104005963B (zh) * 2014-05-23 2016-03-02 哈尔滨电气动力装备有限公司 小型核电站用主泵结构

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