CN1298067A - 滚动球球阀密封结构 - Google Patents

滚动球球阀密封结构 Download PDF

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CN1298067A
CN1298067A CN 99124153 CN99124153A CN1298067A CN 1298067 A CN1298067 A CN 1298067A CN 99124153 CN99124153 CN 99124153 CN 99124153 A CN99124153 A CN 99124153A CN 1298067 A CN1298067 A CN 1298067A
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王加新
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Abstract

推旋装置(1)推动组合球(2)按阀座(3)中心轴线平行滚动,当组合球(2)向阀座(3)滚动压紧时,球阀关闭。当组合球(2)向阀腔中心轴线滚动,脱离阀座(3),并旋转90度时,球阀开启。

Description

滚动球球阀密封结构
本发明属机械行业，阀门技术领域。
现有球阀的密封结构一般可分四类：(一)预先压紧密封类，即以聚四氟乙稀等软质阀座安装时，预先压紧球面，形成密封；(二)弹性平动贴紧密封类，即以弹性阀座或弹性元件推动阀座向球面平动，并贴紧球面，形成密封；(三)球体摆动压紧密封类，即以球体或球瓣下端的万向节为支点，通过阀杆上的凸轮机构或撑拢盘等机构，将球体或球瓣以一定角度向阀座倾斜摆动，并压紧阀座，形成密封；(四)斜面撑开球瓣平动压紧密封类，即以组合球中间带斜而的楔球体的下行，撑开与楔球体作斜面配合的球瓣，向两阀座平行推动，并压紧阀座，形成密封。
本发明的目的是提供一种球体或球瓣滚动压紧阀座，形成密封的球阀密封结构。
所述球阀阀腔中的球体或组合球旋转到关闭位置，球体或组合球球瓣在外力推动下，沿阀座中心轴线向阀座滚动一段距离，并压紧阀座，形成密封，球阀关闭。反之，球体或组合球球瓣沿阀座中心轴线向阀腔中心轴线滚动到始发点，密封面间形成间隙，球体或组合球旋转到开启位置，球阀开启。其主要特征是：球阀阀腔中有沿阀座中心轴线滚动的球体或组合球球瓣，有推动球体或组合球球瓣滚动及带动球体或组合球旋转的装置，有保正球体或组合球球瓣在滚动时必须按阀座中心轴线平行滚动的装置。
本发明与现有技术——预先压紧密封结构比较，更能适应硬密封副结构，能承受高温高压等高参数介质，密封面间磨损小，启闭扭矩小。与现有技术——阀座弹性平动贴紧密封结构比较，密封面间磨损小，启闭扭矩小，没有弹性元件高温失效、疲劳、弹性元件槽结渣的缺陷。没有浮动阀座与阀座孔之间需滑动配合、需密封，易泄漏的缺陷。与现有技术——球体摆动压紧密封结构比较，能双向密封，流向不受限制，没有因角度摆动，而造成密封面圆周上接触不均匀，密封比压不均匀，关闭或开启的瞬间介质对密封面冲蚀不均匀的缺陷，没有万向节中间容易结渣，使球瓣不能收拢的缺陷。与现有技术——斜面撑开球瓣平动压紧密封结构相比较，球径缩小，结构简单，制造成本减低，球面与阀座密封面最终形成滚动压紧密封，使密封面间不易存留颗粒，更广泛适应各类介质。
发明的具体结构由以下的实施例及附图给出：
附图是依据本发明提出的一种滚动球球阀密封结构示意图。
推旋装置(1)可推动球瓣(2)向阀座(3)滚动，也可推动球瓣(2)脱离阀座(3)向阀腔中心轴线滚动，还可带动组合球作旋转运动。滚轨装置(4)能可靠保证球瓣(2)按阀座(3)的中心轴线平行滚动。当球瓣(2)向阀座(3)滚动，并压紧阀座(3)时，球阀全关闭；当球瓣(2)脱离阀座(3)向阀腔中心轴线滚动后，并旋转90度，球阀全开启。

Claims (1)

  1. 滚动球球阀密封结构主要由阀座、组合球、推旋装置、滚轨装置组合而成，其特征在于：
    A.球阀阀腔中有沿阀座中心轴线双向平行滚动的组合球；
    B.球阀阀腔中有推动组合球作双向滚动和带动组合球双向旋转的推旋装置；
    C.球阀阀腔中有保证组合球按阀座中心轴线双向平行滚动的滚轨装置。
CN99124153A 1999-11-30 1999-11-30 滚动球球阀密封结构 Expired - Fee Related CN1100225C (zh)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966788A (zh) * 2011-08-29 2013-03-13 王姝 偏心圆撑开阀
CN102966754A (zh) * 2011-08-29 2013-03-13 王姝 偏心圆撑开组合阀芯的阀门
CN102996830A (zh) * 2011-09-13 2013-03-27 王姝 斜槽配旋转键撑开的阀门
CN106855133A (zh) * 2015-12-09 2017-06-16 王翔 一种新型强制密封球阀
CN106855134A (zh) * 2015-12-09 2017-06-16 王翔 一种球阀的球体
CN108547965A (zh) * 2018-05-24 2018-09-18 李祥庆 一种球阀的使用方法
CN108591515A (zh) * 2018-05-24 2018-09-28 李祥庆 一种双阀杆控制球阀
CN108692054A (zh) * 2018-05-24 2018-10-23 李祥庆 一种阀座防冲刷球阀

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411050C2 (de) * 1994-03-30 2003-10-09 Ingo Bruchhold Kugelhahn
CN2332849Y (zh) * 1997-11-13 1999-08-11 凌长彬 一种阀门
CN2337362Y (zh) * 1997-12-29 1999-09-08 凌长彬 一种阀门

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966788A (zh) * 2011-08-29 2013-03-13 王姝 偏心圆撑开阀
CN102966754A (zh) * 2011-08-29 2013-03-13 王姝 偏心圆撑开组合阀芯的阀门
CN102966754B (zh) * 2011-08-29 2015-03-11 王姝 偏心圆撑开组合阀芯的阀门
CN102966788B (zh) * 2011-08-29 2015-09-23 王姝 偏心圆撑开阀
CN102996830A (zh) * 2011-09-13 2013-03-27 王姝 斜槽配旋转键撑开的阀门
CN102996830B (zh) * 2011-09-13 2016-02-17 王姝 斜槽配旋转键撑开的阀门
CN106855133A (zh) * 2015-12-09 2017-06-16 王翔 一种新型强制密封球阀
CN106855134A (zh) * 2015-12-09 2017-06-16 王翔 一种球阀的球体
CN108547965A (zh) * 2018-05-24 2018-09-18 李祥庆 一种球阀的使用方法
CN108591515A (zh) * 2018-05-24 2018-09-28 李祥庆 一种双阀杆控制球阀
CN108692054A (zh) * 2018-05-24 2018-10-23 李祥庆 一种阀座防冲刷球阀

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