CN108413063B - 一种轻质高压卸荷截止阀 - Google Patents

一种轻质高压卸荷截止阀 Download PDF

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CN108413063B
CN108413063B CN201810226160.6A CN201810226160A CN108413063B CN 108413063 B CN108413063 B CN 108413063B CN 201810226160 A CN201810226160 A CN 201810226160A CN 108413063 B CN108413063 B CN 108413063B
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valve
valve rod
unloading
adjusting nut
knob
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CN108413063A (zh
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王晓罡
陈文曲
马海涛
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Shanghai Institute of Space Propulsion
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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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/243—Packings
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/316—Guiding of the slide
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Safety Valves (AREA)

Abstract

本发明提供了一种轻质高压卸荷截止阀，包括旋钮和阀体，所述旋钮安装在阀体一端，构成安装腔，所述安装腔内安装有一阀杆，所述阀杆上从左至右依次套装有限位螺母、调节螺母、导向套和卸荷O型圈，所述阀杆上安装有两个卸荷O型圈，其中一个卸荷O型圈安装在所述导向套与阀杆之间，另一个安装在阀杆与阀体之间，且安装在导向套后方一定距离处。本发明的截止阀利用卸荷O型圈实现高压卸荷，有效减小了截止阀的开关力，此外，该阀在启闭过程中通过调节螺母带动阀杆左右运动，避免了阀杆在启闭过程中的转动，从而减小了截止阀密封面的磨损，提高了阀门的使用寿命。因此，本发明取得了操作方便、高寿命和轻质的有益效果。

Description

一种轻质高压卸荷截止阀
技术领域
本发明涉及阀门结构领域，具体涉及一种轻质高压卸荷截止阀。
背景技术
截止阀是流体控制系统中一个重要的组成部分，用于控制工作介质的启闭。
传统轻质高压截止阀均为直动式结构，开关力大，操作性差，特别是高压工况下，密封性能的优劣有大程度上取决开关力的大小。且传统结构截止阀通常为旋钮直接带动阀杆旋转运动，反复开关容易造成密封面磨损，造成阀门使用寿命下降。
发明内容
针对现有轻质高压截止阀启闭力大、寿命低的问题，本发提供了一种轻质高压卸荷截止阀，利用卸荷和阀杆防转结构，可满足操作方便、高寿命和轻质的要求。
为实现上述目的，本发明具体通过以下技术方案实现：
一种轻质高压卸荷截止阀，包括旋钮和阀体，所述旋钮安装在阀体一端，构成安装腔，所述安装腔内安装有一阀杆，所述阀杆上从左至右依次套装有限位螺母、调节螺母、导向套和卸荷O型圈，所述阀杆上安装有两个卸荷O型圈，其中一个卸荷O型圈安装在所述导向套与阀杆之间，另一个安装在阀杆与阀体之间，且安装在导向套后方一定距离处。
优选地，所述导向套上套装有一卸荷O型圈。
优选地，所述限位螺母位于所述旋钮内。
优选地，所述调节螺母一部分位于所述旋钮内，另一部分位于所述阀体内。
本发明具有以下有益效果：
本发明的轻质高压卸荷截止阀通过卸荷O型圈设计，使阀杆在启闭状态都处于完全卸荷状态，开关力直接转化为密封力，有效提高了阀门在高压状态下的可操作性和密封性；此外，启闭过程通过调节螺母带动阀杆左右运动，有效避免了阀杆在此过程中与密封面的相互转动，减小了密封面的磨损，提高了阀门的使用性能；该阀的卸荷和阀杆防转设计结构紧凑，阀门可轻质化，满足了民用轻质系统的要求。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的将会变得更明显：
图1为本发明实施例一种轻质高压卸荷截止阀的示意图；
图中：1—旋钮、2—限位螺母、3—调节螺母、4—阀杆、5—导向套、6—卸荷O型圈、7—阀体。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，对本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进。这些都属于本发明的保护范围。
如图1所示，本发明实施例提供了一种轻质高压卸荷截止阀，包括旋钮1和阀体7，所述旋钮1安装在阀体7一端，构成安装腔，所述安装腔内安装有一阀杆4，所述阀杆4上从左至右依次套装有限位螺母2、调节螺母3、导向套5和卸荷O型圈6，所述阀杆4上安装有两个卸荷O型圈6，其中一个卸荷O型圈6安装在所述导向套5与阀杆4之间，另一个安装在阀杆4与阀体7之间，所述导向套5上套装有一卸荷O型圈6。所述限位螺母2位于所述旋钮1内。所述调节螺母3一部分位于所述旋钮1内，另一部分位于所述阀体7内。
本具体实施的截止阀在打开过程中，转动旋钮，带动调节螺母向左运动，当调节螺母碰到限位螺母时，带动阀杆向左运动，阀门开度变大，当阀杆接触导向套限位面，阀门完全开启；截止阀关闭过程中，逆向转动旋钮，带动调节螺母向右运动，当调节螺母碰到阀杆球面时，带动阀杆向右运动，阀门开度减小，当阀杆接触阀体密封座时，阀门完全关闭。在运动过程中，由于卸荷和阀杆防转结构的存在，阀门开关灵活、密封性好、使用寿命高。
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本发明的实质内容。

Claims (2)

1.一种轻质高压卸荷截止阀，包括旋钮(1)和阀体(7)，其特征在于，所述旋钮(1)安装在阀体(7)一端，构成安装腔，所述安装腔内安装有一阀杆(4)，所述阀杆(4)上从左至右依次套装有限位螺母(2)、调节螺母(3)、导向套(5)和卸荷O型圈(6)，所述阀杆(4)上安装有两个卸荷O型圈(6)，其中一个卸荷O型圈(6)安装在所述导向套(5)与阀杆(4)之间，另一个安装在阀杆(4)与阀体(7)之间；
所述导向套(5)上套装有一卸荷O型圈(6)；
所述调节螺母(3)一部分位于所述旋钮(1)内，另一部分位于所述阀体(7)内；
在打开过程中，转动旋钮(1)，带动调节螺母(3)向左运动，当调节螺母(3)碰到限位螺母(2)时，带动阀杆(4)向左运动，阀门开度变大，当阀杆(4)接触导向套(5)限位面，阀门完全开启；
在关闭过程中，逆向转动旋钮(1)，带动调节螺母(3)向右运动，当调节螺母(3)碰到阀杆(4)球面时，带动阀杆(4)向右运动，阀门开度减小，当阀杆(4)接触阀体密封座时，阀门完全关闭；
所述阀杆(4)在启闭状态都处于完全卸荷状态，开关力直接转化为密封力，启闭过程通过调节螺母(3)带动阀杆(4)左右运动，阀杆(4)在此过程中与密封面没有相互转动。
2.如权利要求1所述的一种轻质高压卸荷截止阀，其特征在于，所述限位螺母(2)位于所述旋钮(1)内。
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CH473347A (de) * 1968-12-20 1969-05-31 Balzers Patent Beteilig Ag Gasdosierventil
KR100994527B1 (ko) * 2007-07-20 2010-11-16 씨케이디 가부시키 가이샤 수동밸브
CN201412531Y (zh) * 2009-06-01 2010-02-24 常州爱普超高压液压系统有限公司 直角截止阀
CN204628596U (zh) * 2015-04-29 2015-09-09 捷锐企业(上海)有限公司 一种气体高压截止阀
CN105257829B (zh) * 2015-10-15 2017-07-07 上海市计量测试技术研究院 一种超高压压力截止阀
CN107420624A (zh) * 2017-08-21 2017-12-01 赛洛克流体设备成都有限公司 一种改进型的取样瓶针形阀

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