CN106704647A - 一种高压自密封旋启式止回阀 - Google Patents

一种高压自密封旋启式止回阀 Download PDF

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Publication number
CN106704647A
CN106704647A CN201710178307.4A CN201710178307A CN106704647A CN 106704647 A CN106704647 A CN 106704647A CN 201710178307 A CN201710178307 A CN 201710178307A CN 106704647 A CN106704647 A CN 106704647A
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China
Prior art keywords
valve
valve body
gland nut
bonnet
nut
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Application number
CN201710178307.4A
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English (en)
Inventor
金容�
伍国果
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Chongqing University of Arts and Sciences
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Chongqing University of Arts and Sciences
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Priority to CN201710178307.4A priority Critical patent/CN106704647A/zh
Publication of CN106704647A publication Critical patent/CN106704647A/zh
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2042—Special features or arrangements of the sealing
    • F16K1/205—Special features or arrangements of the sealing the sealing being arranged on the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2042—Special features or arrangements of the sealing
    • F16K1/2057—Special features or arrangements of the sealing the sealing being arranged on the valve seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

本发明公开了一种高压自密封旋启式止回阀，包括阀体、阀座、阀瓣、摇杆、销轴、阀盖、密封环、垫圈、压盖螺母、锁紧螺母、锁紧垫圈，其特征在于：所述阀座安装在阀体进口通道内，阀座正面具有与阀瓣正面相互配合的密封面，所述阀瓣由锁紧螺母安装在摇杆的一端，摇杆另一端由销轴连接在阀体上，阀体上端与阀盖连接，所述阀盖侧面具有与压盖螺母相互配合的密封面，压盖螺母与阀盖之间装有密封环和垫圈。本发明的优点是阀瓣正面和阀座正面都采取堆焊处理，增加其密封性能,结构简单、操作方便、便于安装维修、使用寿命长。

Description

一种高压自密封旋启式止回阀
技术领域
本发明涉及一种止回阀，更具体的说，他涉及一种高压自密封旋启式止回阀，主要应用于阀门制造领域。
背景技术
止回阀是流体控制工程的基本元件，它通过制止流体逆流，起到确定流体流动方向、保护其它流体机械以及管线安全的作用，其广泛用于石油、冶金、化工、电力、建筑、热力、水处理等行业。现有旋启式止回阀主要缺点是：由于阀瓣与阀座的配合精度不高，在压力过高时容易产生泄露，使用寿命低；阀盖与阀体之间采用密封件密封，降低密封性能。
发明内容
为了解决以上的技术问题，本发明提供一种高压自密封旋启式止回阀。
为实现上述目的，本发明所采用的技术方案如下：
一种高压自密封旋启式止回阀，包括阀体、阀座、阀瓣、摇杆、销轴、阀盖、密封环、垫圈、压盖螺母、锁紧螺母、锁紧垫圈，其特征在于：所述阀座安装在阀体进口通道内，阀座正面具有与阀瓣正面相互配合的密封面，所述阀瓣由锁紧螺母安装在摇杆的一端，摇杆另一端由销轴连接在阀体上，阀体上端与阀盖连接，所述阀盖侧面具有与压盖螺母相互配合的密封面，压盖螺母与阀盖之间装有密封环和垫圈。
所述阀座正面采取堆焊处理，堆焊深度大于等于2mm。
所述阀瓣正面采取堆焊处理，堆焊深度大于等于2mm。
所述阀盖侧面与压盖螺母接触处采取堆焊处理，堆焊深度大于等于2mm。
所述压盖螺母与阀盖之间采用螺柱和螺母连接。
所述压盖螺母与阀体之间采用螺纹连接。
通过上述技术方案，本发明的有益效果是：
本发明优点是阀瓣正面和阀座正面都采取堆焊处理，增加其密封性能,结构简单、操作方便、便于安装维修、使用寿命长。
附图说明
图1为本发明的高压自密封旋启式止回阀的结构示意图。
图中所示附图标记为：1- 阀体；2-阀座；3-阀瓣；4-摇杆；5-销轴；6-阀盖；7-密封环；8-垫圈；9-压盖螺母；10-螺柱；11- 螺母；12-锁紧垫圈；13-锁紧螺母。
具体实施方式
下面结合附图对本发明实施例作进一步说明：
如图1所示，本发明提供了一种高压自密封旋启式止回阀，包括阀体1、阀座2、阀瓣3、摇杆4、销轴5、阀盖6、密封环7、垫圈8、压盖螺母9，阀座2安装在阀体1进口通道内，阀座2正面具有与阀瓣3正面相互配合的密封面，阀座2、阀瓣3正面采用堆焊处理，具有减少泄露、耐高压性能,使用寿命长；阀瓣3穿过锁紧垫圈12由锁紧螺母13安装在摇杆4的一端，摇杆4另一端由销轴5连接在阀体1上，阀门容易打开，流阻小；阀盖6侧面具有与压盖螺母9相互配合的密封面，且他们之间装有密封环7和垫圈8，构成自密封结构，介质压力推动阀盖6楔紧密封环7和垫圈8与压盖螺母9密封，压力越大密封性能越好；压盖螺母9与阀体1之间采用螺纹连接，阀盖6与压盖螺母9之间采用螺柱10、螺母11连接，方便与安装、调试、维修。
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的实质精神所引伸出的显而易见的变化或变动仍属于本发明的保护范围。

Claims (6)

1.一种高压自密封旋启式止回阀，包括阀体、阀座、阀瓣、摇杆、销轴、阀盖、密封环、垫圈、压盖螺母、锁紧螺母、锁紧垫圈，其特征在于：所述阀座安装在阀体进口通道内，阀座正面具有与阀瓣正面相互配合的密封面，所述阀瓣由锁紧螺母安装在摇杆的一端，摇杆另一端由销轴连接在阀体上，阀体上端与阀盖连接，所述阀盖侧面具有与压盖螺母相互配合的密封面，压盖螺母与阀盖之间装有密封环和垫圈。
2.所述阀座正面采取堆焊处理，堆焊深度大于等于2mm。
3.所述阀瓣正面采取堆焊处理，堆焊深度大于等于2mm。
4.所述阀盖侧面与压盖螺母接触处采取堆焊处理，堆焊深度大于等于2mm。
5.所述压盖螺母与阀盖之间采用螺柱和螺母连接。
6.所述压盖螺母与阀体之间采用螺纹连接。
CN201710178307.4A 2017-03-23 2017-03-23 一种高压自密封旋启式止回阀 Withdrawn CN106704647A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413046A (zh) * 2018-02-24 2018-08-17 江苏亿阀股份有限公司 一种全通径截止阀
CN114523247A (zh) * 2020-11-23 2022-05-24 中核苏阀科技实业股份有限公司 一种旋启式止回阀焊接阀座的压紧工装

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108413046A (zh) * 2018-02-24 2018-08-17 江苏亿阀股份有限公司 一种全通径截止阀
CN114523247A (zh) * 2020-11-23 2022-05-24 中核苏阀科技实业股份有限公司 一种旋启式止回阀焊接阀座的压紧工装

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Application publication date: 20170524