CN2192751Y - 橡胶密封离心式水泵 - Google Patents

橡胶密封离心式水泵 Download PDF

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Publication number
CN2192751Y
CN2192751Y CN 94213390 CN94213390U CN2192751Y CN 2192751 Y CN2192751 Y CN 2192751Y CN 94213390 CN94213390 CN 94213390 CN 94213390 U CN94213390 U CN 94213390U CN 2192751 Y CN2192751 Y CN 2192751Y
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water pump
sealing
utility
centrifugal water
model
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CN 94213390
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李树成
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Abstract

本实用新型涉及橡胶密封离心式水泵,广泛应用 于多级离心式水泵的制造与维修,它是用骨架式油封 作为水泵的转动部分与固定部分之间的密封,用橡胶 的弹性密封取消间隙密封,降低液体在泵腔内的窜 流,防止压力水的漏出和空气的漏入,提高离心式水 泵的效率。

Description

本实用新型涉及一种离心式水泵的改装,广泛应用于水泵的制造及水泵的大修。
在现有的多级离心式水泵中,叶轮的吸水口外圆和水泵的固定部分之间,叶轮尾端轮毂和泵段导叶内孔之间,采用铸铁的密封环进行装配,这样就形成环形缝隙,高压区的水经过缝隙进入低压区并行成环形流,使叶轮实际排入次级的流量减少,消耗了无益功。
本实用新型的目的就是要提供一种能够降低水泵的容积损失和机械损失的措施,使水泵的总效率得以提高。
本实用新型的目的是这样实现的,将进水段和中段及叶轮尾端轮毂与每段导叶内孔之间的大口环、小口环取消,改装成相应尺寸规格的骨架式橡胶油封。
本实用新型的显著特点在于:1、利用橡胶密封的弹性密封功能,消除了水通过水泵静、动部件之间的间隙泄漏而造成的能量损失;2、因水泵静、动部件之间由间隙密封改为弹性密封,使各部相关尺寸的加工精度容易保证,并使水泵的大修工艺得以简化;3、水轮盘外表面上的压力分布规律趋于稳定,使泵轴轴向推力减小。
附图说明:
附图为本实用新型剖视图
下面将结合附图对本实用新型加以说明:
如附图所示,橡胶密封离心式水泵的结构及原理与原离心式水泵相比没有改变,只是从泵的密封这一部分进行了改装,骨架密封圈3是将原大口环拿掉后将中段里孔处尺寸加工扩大后装入的,骨架密封圈4也是将配合处尺寸加大后装入的。
从对原离心式水泵取消铸铁密封环安装骨架油封的方式来看,对原水泵没有大的改动只是大口环、小口环外径配合处尺寸略有加大,并且,现有的一种骨架油封耐压程度可以达到0.5MPa,能够满足水泵段间的耐压要求,从制造和改成橡胶密封离心式水泵这方面来看,制造难度和成本并没有加大,而效益是很好的。

Claims (1)

1、一种橡胶密封离心式水泵,是由普通离心式水泵改装而成,其特征在于,用骨架式油封作为水泵动、静部件之间的密封。
CN 94213390 1994-06-08 1994-06-08 橡胶密封离心式水泵 Expired - Fee Related CN2192751Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94213390 CN2192751Y (zh) 1994-06-08 1994-06-08 橡胶密封离心式水泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94213390 CN2192751Y (zh) 1994-06-08 1994-06-08 橡胶密封离心式水泵

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CN2192751Y true CN2192751Y (zh) 1995-03-22

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CN 94213390 Expired - Fee Related CN2192751Y (zh) 1994-06-08 1994-06-08 橡胶密封离心式水泵

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CN (1) CN2192751Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481914A (zh) * 2014-10-29 2015-04-01 郭学文 一种动力密封装置及离心泵

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481914A (zh) * 2014-10-29 2015-04-01 郭学文 一种动力密封装置及离心泵

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