CN2842117Y - 导向阀瓣高压立式止回阀 - Google Patents

导向阀瓣高压立式止回阀 Download PDF

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Publication number
CN2842117Y
CN2842117Y CN 200520052123 CN200520052123U CN2842117Y CN 2842117 Y CN2842117 Y CN 2842117Y CN 200520052123 CN200520052123 CN 200520052123 CN 200520052123 U CN200520052123 U CN 200520052123U CN 2842117 Y CN2842117 Y CN 2842117Y
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valve
valve body
flap
clack
valve clack
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孙韵
刘晖
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Hunan Sihuajian High-pressure Valve Pipe Fittings Co., Ltd.
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FOURTH CONSTRUCTION Corp OF CHINA NATIONAL CHEMICAL ENGINEERING
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Abstract

本实用新型涉及一种止回阀,特别指一种导向阀瓣高压立式止回阀。本实用新型包括连接进出水管道的阀体,及装在阀体内的阀瓣、阀盖和弹簧,其特点是阀体的上下两端各设一带法兰的进出口管道接口,阀体的中部设有阀瓣导向装置,阀瓣设在导向装置一侧可垂直移动和复位,阀体上下端管道接口通过法兰连接进出水管,阀体的进口通道阀口由阀瓣弹力触接。本实用新型在工作时,阀瓣沿筒形导向孔作升降运动,辅助弹簧缓冲,使阀瓣升降对中、平稳,阀瓣与阀体密封面之间避免了因阀瓣摆动而形成的偏心撞击,因而提高了阀瓣工作的可靠性,延长了阀门的使用寿命。

Description

导向阀瓣高压立式止回阀
技术领域
本实用新型涉及一种止回阀,特别指一种导向阀瓣高压立式止回阀。
背景技术
现有的高压立式止回阀的阀瓣无导向机构,阀门在运行中产生摆动,容易造成阀瓣卡住而损坏,弹簧也易损坏,而且阀瓣对阀体密封面进行频繁偏心撞击,使阀门寿命缩短。
发明内容
本实用新型的目的是针对背景技术中存在的缺点和问题加以改进,提供一种具有阀瓣导向机构的导向阀瓣高压立式止回阀,以提高阀门的使用寿命。
本实用新型的技术方案实现是:本实用新型包括连接进出水管道的阀体,及装在阀体内的阀瓣、阀盖和弹簧,其特点是阀体的上下两端各设一带法兰的进出口管道接口,阀体的中部设有阀瓣导向装置,阀瓣设在导向装置一侧可垂直移动和复位,阀体上下端管道接口通过法兰连接进出水管,阀体的进口通道阀口由阀瓣弹力触接。
本实用新型在工作时,阀瓣沿筒形导向孔作升降运动,辅助弹簧缓冲,使阀瓣升降对中、平稳,阀瓣与阀体密封面之间避免了因阀瓣摆动而形成的偏心撞击,因而提高了阀瓣工作的可靠性,延长了阀门的使用寿命。
附图说明
附图为本实用新型结构图
具体实施方式
如图所示,本实用新型包括连接进出水管道的阀体(1),及装在阀体(1)内的阀瓣(2)、阀盖(6)和弹簧(3),其特点是阀体(1)的上下两端各设一带法兰(10)的进出口管道接口,阀体(1)的中部设有阀瓣导向装置,阀瓣(2)设在导向装置一侧可垂直移动和复位,阀体(1)上下端管道接口通过法兰(10)连接进出水管,阀体(1)的进口通道阀口由阀瓣(2)弹力触接。
本实用新型所述的阀瓣导向装置包括阀盖(6)、导向筒(4)、弹簧(3)、垫片(8),其中阀盖(6)设在阀体(1)中部,垫片(8)压在阀盖上部,导向筒(4)设在阀体(1)的中心,阀瓣(2)有一段空心导向轴插在导向筒(4)内,导向筒(4)和导向轴内设有可使阀瓣(2)复位的弹簧(3)。所述的阀体(1)为对称两段装配而成,阀体(1)的中部设有两个中间法兰(5),两段阀体之间设有密封环(7),螺栓(9)将两段阀体通过法兰(5)固定连接成一整体。当阀门运行时,高压介质顶开阀瓣,由于阀瓣轴沿筒形内壁运动,阀瓣不会发生偏摆,避免了偏心撞击,因而提高了阀瓣工作的可靠性,延长了阀门的使用寿命。

Claims (3)

1、一种导向阀瓣高压立式止回阀,包括连接进出水管道的阀体(1),及装在阀体(1)内的阀瓣(2)、阀盖(6)和弹簧(3),其特征在于阀体(1)的上下两端各设一带法兰(10)的进出口管道接口,阀体(1)的中部设有阀瓣导向装置,阀瓣(2)设在导向装置一侧可垂直移动和复位,阀体(1)上下端管道接口通过法兰(10)连接进出水管,阀体(1)的进口通道阀口由阀瓣(2)弹力触接。
2、根据权利要求1所述的导向阀瓣高压立式止回阀,其特征在于所述的阀瓣导向装置包括阀盖(6)、导向筒(4)、弹簧(3)、垫片(8),其中阀盖(6)设在阀体(1)中部,垫片(8)压在阀盖上部,导向筒(4)设在阀体(1)的中心,阀瓣(2)有一段空心导向轴插在导向筒(4)内,导向筒(4)和导向轴内设有可使阀瓣(2)复位的弹簧(3)。
3、根据权利要求1所述的导向阀瓣高压立式止回阀,其特征在于所述的阀体(1)为对称两段装配而成,阀体(1)的中部设有两个中间法兰(5),两段阀体之间设有密封环(7),螺栓(9)将两段阀体通过法兰(5)固定连接成一整体。
CN 200520052123 2005-10-09 2005-10-09 导向阀瓣高压立式止回阀 Expired - Fee Related CN2842117Y (zh)

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CN 200520052123 CN2842117Y (zh) 2005-10-09 2005-10-09 导向阀瓣高压立式止回阀

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330829A (zh) * 2010-07-12 2012-01-25 蒋介中 静音内衬止回阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102330829A (zh) * 2010-07-12 2012-01-25 蒋介中 静音内衬止回阀

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ASS Succession or assignment of patent right

Owner name: HUNAN SI HUA JIAN HIGH-PRESSURE VALVE & PIPE FITT

Free format text: FORMER OWNER: NO.4 BUILDING CORP, CHINA CHEMICAL ENGINEERING

Effective date: 20070608

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Effective date of registration: 20070608

Address after: 414000 North Gate Road, north gate, Yueyang, Hunan

Patentee after: Hunan Sihuajian High-pressure Valve Pipe Fittings Co., Ltd.

Address before: Hunan province Yueyang City Road 414000 Bridge

Patentee before: The Fourth Construction Corporation of China National Chemical Engineering

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee