CN201281133Y - 液控止回蝶阀 - Google Patents

液控止回蝶阀 Download PDF

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Publication number
CN201281133Y
CN201281133Y CNU2008201668640U CN200820166864U CN201281133Y CN 201281133 Y CN201281133 Y CN 201281133Y CN U2008201668640 U CNU2008201668640 U CN U2008201668640U CN 200820166864 U CN200820166864 U CN 200820166864U CN 201281133 Y CN201281133 Y CN 201281133Y
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China
Prior art keywords
valve rod
valve
butterfly plate
butterfly
hydraulic
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Expired - Fee Related
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CNU2008201668640U
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English (en)
Inventor
林益东
郑定义
林送雷
潘献敏
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ZHEJIANG ZHONG GONG VALVE CO Ltd
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ZHEJIANG ZHONG GONG VALVE CO Ltd
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Priority to CNU2008201668640U priority Critical patent/CN201281133Y/zh
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Abstract

本实用新型涉及一种液控止回蝶阀,包括液控装置、阀体、阀座、蝶板、阀杆及密封件和安装件,阀杆由上阀杆与下阀杆组成,蝶板两端通过上阀杆和下阀杆安装在阀体内,主要是蝶板背面制有至少两条垂直于阀杆轴线方向的增强筋,其蝶板的刚度好,密封性能可靠,对介质流阻小。适用于泵站或气轮机出口防止介质倒流的止回阀。

Description

液控止回蝶阀
技术领域
本实用新型涉及一种阀门,特别是关于一种液控止回蝶阀。本实用新型适用于泵站或气轮机出口防止介质倒流的止回阀。
背景技术
液控止回蝶阀广泛使用于泵站或气轮机出口管道上,其结构包括液控装置、阀体、阀座、蝶板、阀杆及密封件和安装件,阀杆由上阀杆与下阀杆组成,蝶板两端通过上阀杆和下阀杆安装在阀体内,当泵站或气轮机停机时,液控装置控制蝶阀自动关闭,防止介质倒流损坏泵站或气轮机设备。然而,由于泵站或气轮机的管道口径普遍较大,蝶板太薄则在阀门关闭状态下强度不够,蝶板太厚则在阀门开启状态下流阻太大,两者不能兼顾。
发明内容
本实用新型的目的是针对现有技术存在的缺点,提供一种蝶板强度大、流阻小的液控止回蝶阀。
本实用新型的技术方案包括液控装置、阀体、阀座、蝶板、阀杆及密封件和安装件,阀杆由上阀杆与下阀杆组成,蝶板两端通过上阀杆和下阀杆安装在阀体内,主要是蝶板背面制有至少两条垂直于阀杆轴线方向的增强筋。
本实用新型的优点是蝶板背面制有垂直于阀杆轴线方向的增强筋,蝶板的刚度好、对介质流阻小。
附图说明
图1是本实用新型的结构剖视图。
具体实施方式
如图1所示的液控止回蝶阀,包括液控装置10、阀体1、阀座3、蝶板6、阀杆及密封件和安装件,阀杆由上阀杆8与下阀杆2组成,蝶板6两端通过上阀杆8和下阀杆2安装在阀体1内,密封圈4由压环5安装于蝶板6上,密封圈4与阀座3之间具有相互配合的密封面。在蝶板6背面制有两条垂直于阀杆轴线方向的增强筋7。液控装置10由支架9安装于阀体1上。

Claims (1)

1、一种液控止回蝶阀,包括液控装置(10)、阀体(1)、阀座(3)、蝶板(6)、阀杆及密封件和安装件,阀杆由上阀杆(8)与下阀杆(2)组成,蝶板(6)两端通过上阀杆(8)和下阀杆(2)安装在阀体(1)内,其特征是蝶板(6)背面制有至少两条垂直于阀杆轴线方向的增强筋(7)。
CNU2008201668640U 2008-10-23 2008-10-23 液控止回蝶阀 Expired - Fee Related CN201281133Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201668640U CN201281133Y (zh) 2008-10-23 2008-10-23 液控止回蝶阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201668640U CN201281133Y (zh) 2008-10-23 2008-10-23 液控止回蝶阀

Publications (1)

Publication Number Publication Date
CN201281133Y true CN201281133Y (zh) 2009-07-29

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Family Applications (1)

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CNU2008201668640U Expired - Fee Related CN201281133Y (zh) 2008-10-23 2008-10-23 液控止回蝶阀

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156727A (zh) * 2015-09-06 2015-12-16 湖北高中压阀门有限责任公司 一种大尺寸止回蝶阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105156727A (zh) * 2015-09-06 2015-12-16 湖北高中压阀门有限责任公司 一种大尺寸止回蝶阀

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