CN2723782Y - 卧式全流道偏心半球阀 - Google Patents

卧式全流道偏心半球阀 Download PDF

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CN2723782Y
CN2723782Y CN 200420017929 CN200420017929U CN2723782Y CN 2723782 Y CN2723782 Y CN 2723782Y CN 200420017929 CN200420017929 CN 200420017929 CN 200420017929 U CN200420017929 U CN 200420017929U CN 2723782 Y CN2723782 Y CN 2723782Y
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valve
valve body
ball
diameter
shaft
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李习洪
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WUHAN DAYU VALVE CO Ltd
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Abstract

本实用新型公开了一种卧式全流道偏心半球阀包括阀体,阀盖,阀体内设阀座,阀盖设在阀体的流道一端,阀轴水平设在阀体内,阀轴由两段组成,一段阀轴设在阀体内,另一段阀轴穿出阀体并与之密封;两段阀轴之间连接半球阀芯,阀轴的中心线在垂直面内与流道的中心线偏离一段距离,半球阀芯的内孔直径不小于阀体流道的进口段直径、出口段直径。本实用新型公开的阀门阀轴水平设置,大大降低阀门的高度,全流道半球阀芯的设计解决了现有半球阀开启后的流道沿程阻力损失,该结构设计为拓宽偏心半球阀的应用领域提供了技术支持。

Description

卧式全流道偏心半球阀
技术领域
本实用新型属于管网控制阀门,具体涉及一种卧式全流道偏心半球阀。
背景技术
目前市场上广泛使用的偏心半球阀的阀轴均是竖直设置的。这种结构要求较高的安装空间才能保证阀门的使用,对安装空间不高但横向较宽的场合上述偏心半球阀均无法使用。另外,市场上使用的卧式蝶阀,由于蝶阀开启后,蝶阀阀瓣始终在流道中,占用流道空间,造成沿程阻力损失。而现有的立式偏心半球阀均存在介质流经时有沿程阻力损失的现象。
发明内容
本实用新型的目的在于提供一种阀轴水平设置的全流道偏心半球阀,以解决上述阀门在安装使用时的缺陷。
本实用新型的技术方案为:卧式全流道偏心半球阀包括阀体,阀盖,阀体内设阀座,阀盖设在阀体的流道一端,阀轴水平设在阀体内,阀轴由两段组成,一段阀轴设在阀体内,另一段阀轴穿出阀体并与之密封;两段阀轴之间连接半球阀芯,阀轴的中心线在垂直面内与流道的中心线偏离一段距离,半球阀芯的内孔直径不小于阀体流道的进口段直径、出口段直径。
本实用新型公开的阀门阀轴水平设置,大大降低阀门的高度,全流道半球阀芯的设计解决了现有半球阀开启后的流道沿程阻力损失,该结构设计为拓宽偏心半球阀的应用领域提供了技术支持。
附图说明
图1硬密封卧式全流道偏心半球阀侧视示意图
图2硬密封卧式全流道偏心半球阀俯视示意图
图3卧式全流道偏心半球阀软密封示意图
具体实施方式
如图1所示,阀轴的中心线32在垂直面内与流道的中心线31偏离一段距离。如图2所示,阀盖2设在阀体1的流道一端,偏心阀轴由左轴段101、右轴段102组成。本实施例中左轴段101穿出阀体1并与之密封,右轴段102设阀体内,端盖3与阀体1连接。左轴段101、右轴段102之间连接半球阀芯4,半球阀芯4上设半环加强筋5,半球阀芯4上连接球面密封环带6。阀盖2上连接阀座7、阀座压圈9,阀盖2端面连接法兰10,阀座7、阀座压圈9及法兰10的内孔构成阀体流道出口段17。半环加强筋5的内半孔与半球阀芯4的内孔构成半球阀芯的流道控制孔15,流道控制孔15的直径不小于阀体流道的进口段16直径、出口段17直径,本实施例上述直径相等。阀座7与阀座压圈9之间设垫片8。阀座7与阀盖2的径向之间设有间隙18,轴向之间设垫片30。半球阀芯14上连接球面密封环带6与阀座7的密封,形成硬密封。
如图3所示,本实施例为软密封的结构。阀体20的一端连接法兰21,阀座22设在连接法兰21上。阀轴的偏心与上述相同。半球阀芯23的球体与阀座22流体出口接触处覆着软密封件24。半球阀芯23的流道孔的直径与出水连接法兰21的孔径相同。

Claims (9)

1、一种卧式全流道偏心半球阀,它包括阀体,阀盖,阀盖内设阀座,其特征在于阀盖设在阀体的流道一端,阀轴水平设在阀体内,阀轴由两段组成,一段阀轴设在阀体内,另一段阀轴穿出阀体并与之密封;两段阀轴之间连接半球阀芯,阀轴的中心线在垂直面内与流道的中心线偏离一段距离,半球阀芯的内孔直径不小于阀体流道的进口段直径、出口段直径。
2、如权利要求1所述卧式全流道偏心半球阀,其特征在于出水段的阀体内连接阀座、阀座压圈,出水段的阀体端面连接法兰,阀座、阀座压圈及法兰的内孔构成阀体流道出口段。
3、如权利要求2所述卧式全流道偏心半球阀,其特征在于阀座与阀座压圈之间设垫片,阀座与阀盖之间设轴向垫片。
4、如权利要求2所述卧式全流道偏心半球阀,其特征在于阀座与阀盖之间有径向间隙。
5、如权利要求1所述卧式全流道偏心半球阀,其特征在于半球阀芯上设半环加强筋。
6、如权利要求1所述卧式全流道偏心半球阀,其特征在于半球阀芯上设球面密封环带。
7、如权利要求1或2或3或4或5所述卧式全流道偏心半球阀,其特征在于半环加强筋的内半孔与半球阀芯的内孔构成半球阀芯的流道控制孔,流道控制孔的直径不小于阀体流道的进口段直径、出口段直径。
8、如权利要求1所述立式全流道偏心半球阀,其特征在于半球阀芯的球体与阀体阀座流体出口接触处覆着软密封件。
9、如权利要求1或2或3或5或7所述卧式全流道偏心半球阀,其特征在于半球阀芯的内孔直径与阀体流道的出口段直径相等。
CN 200420017929 2004-04-29 2004-04-29 卧式全流道偏心半球阀 Expired - Lifetime CN2723782Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635701A (zh) * 2011-12-19 2012-08-15 圣博莱阀门有限公司 双锥金属密封阀
CN107202175A (zh) * 2017-07-28 2017-09-26 泉州市沪航阀门制造有限公司 一种卧式大口径半球阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635701A (zh) * 2011-12-19 2012-08-15 圣博莱阀门有限公司 双锥金属密封阀
CN107202175A (zh) * 2017-07-28 2017-09-26 泉州市沪航阀门制造有限公司 一种卧式大口径半球阀

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