CN204083325U - 一种新型密封结构阀座的球阀 - Google Patents

一种新型密封结构阀座的球阀 Download PDF

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Publication number
CN204083325U
CN204083325U CN201420501105.0U CN201420501105U CN204083325U CN 204083325 U CN204083325 U CN 204083325U CN 201420501105 U CN201420501105 U CN 201420501105U CN 204083325 U CN204083325 U CN 204083325U
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valve seat
ring
valve
sealing structure
bellows
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吴建林
郭滕毅
肖恒辉
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SICHUAN KAITZ VALVE Manufacturing CO LTD
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SICHUAN KAITZ VALVE Manufacturing CO LTD
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Abstract

本实用新型公开了一种新型密封结构阀座的球阀,属于阀门领域。该新型密封结构阀座的球阀包括阀座、阀座支承圈、球体、阀盖,流体通道内设置有同轴的挡圈,阀座支承圈与挡圈之间设有波纹管,挡圈外端设有与阀盖螺纹连接的调节圈。采用本实用新型能有效保证阀座的密封性能。

Description

一种新型密封结构阀座的球阀
技术领域
本实用新型属于阀门领域,具体涉及一种新型密封结构阀座的球阀。
技术背景
球阀被广泛的应用在石油炼制、长输管线、化工、造纸、制药、水利、电力、市政、钢铁等行业,在国民经济中占有举足轻重的地位。球阀中设有球体,主要通过旋转球体来实现开启或者关闭介质通路的功能,再能起到切断、分配和改变介质流动方向的作用。
同样,对于球阀的密封性能也提出了更高的要求,阀座密封作为球阀密封的重要组成部分,保证阀座密封性能就显得尤为必要。
实用新型内容
本实用新型公开了一种新型密封结构阀座的球阀,旨在保证阀座的密封性能,提高球阀的密封性能。
为实现上述目的,本实用新型的技术方案如下:
新型密封结构阀座的球阀,包括阀座、阀座支承圈、球体、阀盖,其特征在于:流体通道内设置有同轴的挡圈,阀座支承圈与挡圈之间设有波纹管,挡圈外端设有与阀盖螺纹连接的调节圈。
所述的波纹管一端焊接在挡圈上,一端抵在阀座支承圈上。
所述的调节圈与阀盖之间设有密封O形圈。
本实用新型的有益效果在于:
一、阀座支承圈与挡圈之间设有波纹管,波纹管既可以当弹性元件使用,对阀座及阀座支承圈提供预紧力,相比普通弹簧,波纹管的适用温度更高,使用寿命更长,性能也更稳定;同时波纹管也可以当密封元件使用,保证球阀的轴向密封;
二、挡圈外端设有调节圈,调节圈与阀盖螺纹连接,当阀座与球体发生磨损,密封性能下降,发生泄露时,延螺纹旋转调节圈,向球体方向挤压挡圈,从而压缩波纹管,使阀座重新抵紧球体,达到密封要求;
三、调节圈与阀盖之间设有密封O形圈,能增强球阀轴向密封,防止介质从调节圈与挡圈之间缝隙泄露。
附图说明
图1为本实用新型的结构示意图。
图2为图1中I处的局部放大图。
图中标记:1为阀盖、2为球体、3为调节圈、4为挡圈、5为波纹管、6为阀座支承圈、7为阀座、8为密封O形圈。
具体实施方式
下面结合附图与具体实施方式对本实用新型进行进一步说明。
如图1、图2所示,新型密封结构阀座的球阀,包括阀座7、阀座支承圈6、球体2、阀盖1,其特征在于:流体通道内设置有同轴的挡圈4,阀座支承圈6与挡圈4之间设有波纹管5,挡圈4外端设有与阀盖1螺纹连接的调节圈3。所述的波纹管5一端焊接在挡圈4上,一端抵在阀座支承圈6上。所述的调节圈3与阀盖1之间设有密封O形圈8。
阀座支承圈6与挡圈4之间设有波纹管5,波纹管5既可以当弹性元件使用,对阀座7及阀座支承圈6提供预紧力,使得阀座磨损后依然能紧抵在球体2上,此时阀座的密封性能良好。相比普通弹簧,波纹管5的适用温度更高,使用寿命更长,性能也更稳定。同时波纹管5也可以当密封元件使用,保证球阀的轴向密封不发生泄露。调节圈与阀盖之间设有密封O形圈,能增强球阀轴向密封,防止介质从调节圈与挡圈之间缝隙泄露。挡圈4外端还设有调节圈3,调节圈3与阀盖1螺纹连接,当阀座7与球体2之间发生磨损,密封性能下降,而波纹管5的预紧力不足以使得阀座7抵紧球体2时。球阀发生泄露,此时,通过延螺纹旋转调节圈3,调节圈3向球体2方向移动,向球体2方向挤压挡圈4,从而压缩波纹管5,直至使阀座7抵紧球体2,重新达到密封要求。

Claims (2)

1.一种新型密封结构阀座的球阀,包括阀座(7)、阀座支承圈(6)、球体(2)、阀盖(1),其特征在于:流体通道内设置有同轴的挡圈(4),阀座支承圈(6)与挡圈(4)之间设有波纹管(5),挡圈(4)外端设有与阀盖(1)螺纹连接的调节圈(3);所述的波纹管(5)一端焊接在挡圈(4)上,一端抵在阀座支承圈(6)上。 
2.根据权利要求1所述的新型密封结构阀座的球阀,其特征在于:所述的调节圈3与阀盖1之间设有密封O形圈(8)。
CN201420501105.0U 2014-09-02 2014-09-02 一种新型密封结构阀座的球阀 Active CN204083325U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105202218A (zh) * 2015-10-27 2015-12-30 上正阀门集团有限公司 上装式波纹管固定球阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105202218A (zh) * 2015-10-27 2015-12-30 上正阀门集团有限公司 上装式波纹管固定球阀

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