CN104482229A - 干轴式双偏心蝶阀 - Google Patents

干轴式双偏心蝶阀 Download PDF

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Publication number
CN104482229A
CN104482229A CN201410816222.0A CN201410816222A CN104482229A CN 104482229 A CN104482229 A CN 104482229A CN 201410816222 A CN201410816222 A CN 201410816222A CN 104482229 A CN104482229 A CN 104482229A
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CN
China
Prior art keywords
valve
valve rod
axle sleeve
valve body
double eccentric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410816222.0A
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English (en)
Inventor
范全军
曹士芳
何玉鹏
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Tianjin FSK Flow Control Equipment Co Ltd
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Tianjin FSK Flow Control Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Tianjin FSK Flow Control Equipment Co Ltd filed Critical Tianjin FSK Flow Control Equipment Co Ltd
Priority to CN201410816222.0A priority Critical patent/CN104482229A/zh
Publication of CN104482229A publication Critical patent/CN104482229A/zh
Pending 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
    • F16K1/22—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 crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping 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
    • 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
    • F16K1/22—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 crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
    • F16K41/106—Spindle sealings with diaphragm, e.g. shaped as bellows or tube for use with rotating spindles or valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

本发明公开了一种干轴式双偏心蝶阀，包括阀体、阀板、上阀杆、下阀杆、分别套设在上阀杆和下阀杆上并保持之间密封的轴套以及分别与阀体固定连接并定位轴套的压套，所述轴套的内端与阀板相顶持并保持密封，所述的压套包括压环和压筒，所述的压环与阀体通过螺栓固定连接，所述的压筒与所述的轴套的外端相顶持。本发明的蝶阀，采用双偏心设计，有效减小了启动力矩，同时开启后阀板完全脱离密封面，有效提高了使用寿命，同时，采用轴套对阀杆密封的设计，在轴套与阀体间、轴套与阀杆间、轴套与阀板间分别设置密封圈，利用密封圈有效保证阀杆不与外部接触，提高了阀杆的耐腐蚀性。

Description

干轴式双偏心蝶阀
技术领域
本发明涉及阀门技术领域，特别是涉及一种干轴式双偏心蝶阀。
背景技术
现在蝶阀广泛地运用在各种管路中，常规蝶阀阀轴与介质直接接触，且蝶板也为通孔，因此阀体和蝶板的轴孔经常出现锈蚀现象，影响水质。尤其是当输送介质具有腐蚀性时，如输送介质为海水等，因为海水有腐蚀性，对阀门内部的防腐要求非常高，常规的蝶阀阀轴与介质直接接触，阀轴经常出现生锈现象，长久使用就会发生转动不灵活，扭矩变大，甚至发生卡死现象。
发明内容
本发明的目的是针对现有技术中存在的技术缺陷，而提供一种干轴式双偏心蝶阀。
为实现本发明的目的所采用的技术方案是：
一种干轴式双偏心蝶阀，包括阀体、阀板、上阀杆、下阀杆、分别套设在上阀杆和下阀杆上并保持之间密封的轴套以及分别与阀体固定连接并定位轴套的压套，所述轴套的内端与阀板相顶持并保持密封，所述的压套包括压环和压筒，所述的压环与阀体通过螺栓固定连接，所述的压筒与所述的轴套的外端相顶持。
所述的阀体的上端和下端分别设置有允许所述的轴套内端插入的定位腔，所述的轴套内端面与阀体间设置有密封圈。
所述的轴套与阀体间，以及轴套和上阀杆或下阀杆间分别设置有密封圈。
所述的压筒与所述的阀体，以及压筒与上阀杆或下阀杆间分别设置有密封圈。
所述的上阀杆和下阀杆分别通过销钉与所述的阀板固定连接，
所述的阀板上设置有堆焊不锈钢层。
与现有技术相比，本发明的有益效果是：
本发明的蝶阀，采用双偏心设计，有效减小了启动力矩，同时开启后阀板完全脱离密封面，有效提高了使用寿命，同时，采用轴套对阀杆密封的设计，在轴套与阀体间、轴套与阀杆间、轴套与阀板间分别设置密封圈，利用密封圈有效保证阀杆不与外部接触，提高了阀杆的耐腐蚀性，同时，因为采用压环固定轴套的方式，在使用中，通过配合调整上压套和下压套，可利用逐级的顶持调整阀板的上下位置，进一步控制开启力矩。
附图说明
图1所示为本发明的干轴式双偏心蝶阀的结构示意图；
图2所示为图1所示的截面结构示意图。
具体实施方式
以下结合附图和具体实施例对本发明作进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1和2所示，本发明的干轴式双偏心蝶阀包括阀体1、双偏心设计的阀板2、上阀杆3、下阀杆4、分别套设在上阀杆和下阀杆上并保持密封的轴套以及分别与阀体固定连接并定位轴套的压套，所述轴套的内端与阀板相顶持并保持密封，所述的压套包括压环和压筒，所述的压环与阀体通过螺栓固定连接，所述的压筒与所述的轴套的外端相顶持。所述的蝶阀为双偏心蝶阀，所述的阀板与阀体接触处设置有堆焊不锈钢层，所述的上阀杆和下阀杆分别通过销钉与所述的阀板固定连接。其中，需要说明的是，轴套包括分别与上阀杆和下阀杆对应的上轴套5和下轴套6，压套包括分别与阀体的阀颈顶部固定连接的上压套7和与阀体底部固定连接的下压套8。
本发明的蝶阀，采用双偏心设计，有效减小了启动力矩，同时开启后阀板完全脱离密封面，有效提高了使用寿命，同时，采用轴套对阀杆密封的设计，在轴套与阀体间、轴套与阀杆间、轴套与阀板间分别设置密封圈，利用密封圈有效保证阀杆不与外部接触，提高了阀杆的耐腐蚀性，同时，利用多级密封圈实现了阀腔内的密封，而且因为采用压环固定轴套的方式，在使用中，通过配合调整上压套和下压套与阀体的锁紧程度，即配合地旋松或者锁紧螺栓，可利用逐级的顶持调整阀板的上下位置，进一步控制开启力矩。
具体地说，所述的阀体上端和下端分别设置有允许所述的轴套内端插入的定位腔，所述的轴套内端面与阀体间设置有密封圈，所述的轴套与阀体和上阀杆或下阀杆间分别设置有密封圈，所述的压筒与所述的阀体和上阀杆或下阀杆间设置有密封圈，在设置密封圈时，在相应的部件上开设环凹槽即可，此处不再赘述。
采用多级密封圈式结构，逐级设计的密封圈对液体构成多级阻挡，整体结构简洁且能保证密封效果。
以上所述仅是本发明的优选实施方式，应当指出的是，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (6)

1.一种干轴式双偏心蝶阀，其特征在于，包括阀体、阀板、上阀杆、下阀杆、分别套设在上阀杆和下阀杆上并保持之间密封的轴套以及分别与阀体固定连接并定位轴套的压套，所述轴套的内端与阀板相顶持并保持密封，所述的压套包括压环和压筒，所述的压环与阀体通过螺栓固定连接，所述的压筒与所述的轴套的外端相顶持。
2.如权利要求1所述的干轴式双偏心蝶阀，其特征在于，所述的阀体的上端和下端分别设置有允许所述的轴套内端插入的定位腔，所述的轴套内端面与阀体间设置有密封圈。
3.如权利要求1所述的干轴式双偏心蝶阀，其特征在于，所述的轴套与阀体间，以及轴套和上阀杆或下阀杆间分别设置有密封圈。
4.如权利要求1所述的干轴式双偏心蝶阀，其特征在于，所述的压筒与所述的阀体，以及压筒与上阀杆或下阀杆间分别设置有密封圈。
5.如权利要求1所述的干轴式双偏心蝶阀，其特征在于，所述的上阀杆和下阀杆分别通过销钉与所述的阀板固定连接，
6.如权利要求1所述的干轴式双偏心蝶阀，其特征在于，所述的阀板上设置有堆焊不锈钢层。
CN201410816222.0A 2014-12-23 2014-12-23 干轴式双偏心蝶阀 Pending CN104482229A (zh)

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