CN104633142A - 四偏心双向密封蝶阀 - Google Patents

四偏心双向密封蝶阀 Download PDF

Info

Publication number
CN104633142A
CN104633142A CN201510073556.8A CN201510073556A CN104633142A CN 104633142 A CN104633142 A CN 104633142A CN 201510073556 A CN201510073556 A CN 201510073556A CN 104633142 A CN104633142 A CN 104633142A
Authority
CN
China
Prior art keywords
valve
valve body
valve plate
plate
rod
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.)
Granted
Application number
CN201510073556.8A
Other languages
English (en)
Other versions
CN104633142B (zh
Inventor
陈彦
许义兵
唐麟
袁水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Smart Auto Control Engineering Co Ltd
Original Assignee
Wuxi Smart Auto Control Engineering 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.)
Filing date
Publication date
Application filed by Wuxi Smart Auto Control Engineering Co Ltd filed Critical Wuxi Smart Auto Control Engineering Co Ltd
Priority to CN201510073556.8A priority Critical patent/CN104633142B/zh
Publication of CN104633142A publication Critical patent/CN104633142A/zh
Application granted granted Critical
Publication of CN104633142B publication Critical patent/CN104633142B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F16K1/224—Details of bearings 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
    • 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
    • F16K1/222—Shaping of 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
    • F16K1/22—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
    • F16K1/2261—Shaping 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
    • F16K1/22—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

Landscapes

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

Abstract

本发明属于流体控制阀领域，涉及一种可实现双向密封的阀体，具体地说是一种四偏心双向密封蝶阀, 包括阀体、阀板、阀杆、密封环，阀板安装于阀体中，阀杆转动设置于阀体轴孔中，阀板与阀杆之间通过销固定连接，实现阀板与阀杆的同步转动；填料组件、填料压盖、填料压板依次装入阀体的填料函处，并通过锁紧螺母、螺杆固定密封；垫片、密封环、压圈依次安装于阀板上，并通过六角螺栓锁紧固定；阀板轴壳两端分别设置一个凸台，阀体内腔设置有与所述凸台相配合的凹槽台。该蝶阀能够实现双向密封、耐磨性好，所需扭距小、使用寿命长，能保证设备装置安全平稳地运行。

Description

四偏心双向密封蝶阀
技术领域
本发明属于流体控制阀领域，涉及一种可实现双向密封的阀体，具体地说是一种四偏心双向密封蝶阀。
背景技术
众所周知，蝶阀的阀体通常是允许流体流过的圆筒状部件。其特征在于，阀板上设有密封面，动作时，阀板以阀轴为中心进行旋转，在动作过程中，阀板上的密封面贴近或脱离阀体上所设置的阀座密封面，从而实现关闭或开启功能。
蝶阀主要有中心型蝶阀、单偏心蝶阀、双偏心蝶阀和三偏心蝶阀几大类。蝶阀偏心结构的演变进程，其目的是减少阀门在启闭过程中阀板与阀座之间的磨损。在已有的技术中，三偏心蝶阀的结构特征为阀杆轴心既偏离阀板中心，也偏离密封面中心，阀板密封面的圆锥型轴线偏斜于阀体圆柱轴线。第三次偏心的最大特点就是从根本上改变了密封构造，不再是位置密封，而是扭力密封，不是依靠阀座的弹性变形，而是完全依靠阀座的接触面压来达到密封效果。根据三偏心之间的几何关系得知：远离阀轴中心的密封点随阀门开度相应变化率较大，而靠近阀轴中心的密封点随阀门开度的相应变化率较小,由于密封环周边的密封点变化率不一致，导致密封环存在密封圈周边受力不均和变形不均的问题，在阀杆力矩的作用下，密封圈周边的密封力和产生的应力不等，有高压力区和低压力区，导致密封圈周边的变形不一致。这种沿密封圈周边不一致的变形，不能够实现阀门的双向密封，也影响了阀门的密封效果和使用寿命。
发明内容
本发明的目的在于克服现有技术中存在的不足，提供一种结构简单、巧妙、合理的四偏心双向密封蝶阀，该蝶阀能够实现双向密封、耐磨性好，所需扭距小、使用寿命长，能保证设备装置安全平稳地运行。
按照本发明提供的技术方案：一种四偏心双向密封蝶阀，包括阀体、阀板、阀杆、密封环，其特征在于：所述阀板安装于阀体中，阀杆转动设置于阀体轴孔中，阀板与阀杆之间通过销固定连接，实现阀板与阀杆的同步转动；填料组件、填料压盖、填料压板依次装入阀体的填料函处，并通过锁紧螺母、螺杆固定密封；垫片、密封环、压圈依次安装于阀板上，并通过六角螺栓锁紧固定；阀板轴壳两端分别设置一个凸台，阀体内腔设置有与所述凸台相配合的凹槽台。
作为本发明的进一步改进，所述垫片设置于阀板与密封环之间，形成平面密封。
作为本发明的进一步改进，阀体轴孔下部设置有轴承座，阀杆下端通过平面轴承转动设置于轴承座上，轴承座与阀杆末端轴肩之间设置挡圈，通过挡圈对阀杆进行定位。
作为本发明的进一步改进，所述阀体轴孔下端密封连接底法兰，底法兰与阀杆之间设置有调整垫。
作为本发明的进一步改进，所述阀板上、用于支撑密封环的台阶面为椭圆面。
本发明与现有技术相比，优点在于：密封环由压圈通过内六角螺钉固定在阀板上，如果密封环损毁或需要更换成更耐磨、耐腐蚀的材质时，无须拆卸阀板和阀轴，密封环可在线维护，降低用户成本；阀板上支撑密封环的台阶面为椭圆型，均匀的支撑着密封环，使密封环受力均匀；衬套的轴向定位台阶设定在阀体的阀座平面上，缩短了轴受力点与轴支撑点之间的距离，增加了轴的刚性；阀板是具有四偏心构造的一个整体零件。在关闭过程中，阀板以阀轴中心旋转，在开和中间位置时，密封环与阀座不接触，无干涉。当阀门关闭时，阀板轴壳两端的凸轮与阀体上的凹槽台接触，并随着阀门关闭，越关越紧，实现了阀门双向密封；阀体上的凹槽台和阀板上的凸轮，可采用局部硬化处理，延长了阀门使用寿命。
附图说明
图1为本发明结构外形装配图。
图2为图1的A-A剖面视图。
图3为图1的B-B剖面视图。
图4为本发明阀体和阀板配合的轴侧视图。
图5为本发明凸台与凹槽台配合的原理图。
具体实施方式
下面结合具体附图和实施例对本发明作进一步说明。
如图1~5所示，包括阀体1、凹槽台1a、阀板2、凸台2a、阀杆3、销4、衬套5、填料组件6、填料压盖7、填料压板8、螺杆9、锁紧螺母10、垫片11、密封环12、压圈13、六角螺栓14、平面轴承15、轴承座16、挡圈17、底法兰18、调整垫19等。
如图1~5所示，本发明一种四偏心双向密封蝶阀，包括阀体1、阀板2、阀杆3、密封环12，所述阀板2安装于阀体1中，阀杆3转动设置于阀体1轴孔中，阀板2与阀杆3之间通过销4固定连接，实现阀板2与阀杆3的同步转动，阀板2在阀杆3带动下进行转动，靠近或远离阀体1上的阀座，实现关闭和开启阀门的目的；填料组件6、填料压盖7、填料压板8依次装入阀体1的填料函处，并通过锁紧螺母1、螺杆9固定密封；垫片11、密封环12、压圈13依次安装于阀板2上，并通过六角螺栓14锁紧固定；阀板2轴壳两端分别设置一个凸台2a，阀体1内腔设置有与所述凸台2a相配合的凹槽台1a。
垫片11设置于阀板2与密封环12之间，形成平面密封。
阀体1轴孔下部设置有轴承座16，阀杆3下端通过平面轴承15转动设置于轴承座16上，轴承座16与阀杆3末端轴肩之间设置挡圈17，通过挡圈17对阀杆3进行定位，挡圈17作为阀杆3的上限位。
所述阀体1轴孔下端密封连接底法兰18，底法兰18与阀杆3之间设置有调整垫19，通过调整垫19对阀杆3进行轴向间隙调整，调整垫19作为阀杆3的下限位。
所述阀板2上、用于支撑密封环12的台阶面为椭圆面，填料组件6包括填料垫及填料隔套，在阀杆3轴径上、对应于阀板2两侧分别设置一个衬套5。
密封环12的结构形式可采用多层次密封或实心密封环，密封环12的金属板材质可用316或INCONEL718，夹层中的非金属材料可采用石墨或PTFE；阀体上的阀座密封面可采用局部硬化处理，密封区域堆焊STE合金。
本发明的工作原理：本发明中的阀板2具有四个偏心，阀杆3的轴心偏离阀板2中心，同时阀杆3的轴心偏离阀板2密封面中心，阀板2密封面的圆锥型轴线偏斜于本体圆柱轴线，阀板2两端轴壳处的凸台2a轴中心偏离阀杆3轴中心。阀门在开合中间位置时，阀板2上的密封环12与阀体1不接触，无干涉量，摩擦力及扭矩较小，减少了磨损，有效延长使用寿命。密封环12安装在阀板2上，随同阀杆3旋转，靠近或远离阀体1上的阀座，实现关闭和开启阀门。垫片11、密封环12、压圈13依次安装，通过六角螺栓14固定在阀板2上，垫片11安装在密封环12与阀板2之间实现平面密封；当流体介质从密封环12背面为入口，介质压差可以加大密封环12与阀座的密封比压，有利于阀门密封；当介质从密封环正面为入口，流体介质压差不利于阀门密封。阀门扭矩可补偿远离阀轴中心的密封点比压，而阀体1的凹槽台1a与阀板的凸台2a接触配合，能够有效的支撑轴两端的密封环12，加大了靠近阀杆中心的密封点的比压，随着阀门关闭，越关越紧，从而实现阀门的双向密封。

Claims (5)

1.一种四偏心双向密封蝶阀，包括阀体（1）、阀板（2）、阀杆（3）、密封环（12），其特征在于：所述阀板（2）安装于阀体（1）中，阀杆（3）转动设置于阀体（1）轴孔中，阀板（2）与阀杆（3）之间通过销（4）固定连接，实现阀板（2）与阀杆（3）的同步转动；填料组件（6）、填料压盖（7）、填料压板（8）依次装入阀体（1）的填料函处，并通过锁紧螺母（1）、螺杆（9）固定密封；垫片（11）、密封环（12）、压圈（13）依次安装于阀板（2）上，并通过六角螺栓（14）锁紧固定；阀板（2）轴壳两端分别设置一个凸台（2a），阀体（1）内腔设置有与所述凸台（2a）相配合的凹槽台（1a）。
2.如权利要求1所述的四偏心双向密封蝶阀，其特征在于：所述垫片（11）设置于阀板（2）与密封环（12）之间，形成平面密封。
3.如权利要求1所述的四偏心双向密封蝶阀，其特征在于：阀体（1）轴孔下部设置有轴承座（16），阀杆（3）下端通过平面轴承（15）转动设置于轴承座（16）上，轴承座（16）与阀杆（3）末端轴肩之间设置挡圈（17），通过挡圈（17）对阀杆（3）进行定位。
4.如权利要求1所述的四偏心双向密封蝶阀，其特征在于：所述阀体（1）轴孔下端密封连接底法兰（18），底法兰（18）与阀杆（3）之间设置有调整垫（19）。
5.如权利要求1所述的四偏心双向密封蝶阀，其特征在于：所述阀板（2）上、用于支撑密封环（12）的台阶面为椭圆面。
CN201510073556.8A 2015-02-10 2015-02-10 四偏心双向密封蝶阀 Active CN104633142B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510073556.8A CN104633142B (zh) 2015-02-10 2015-02-10 四偏心双向密封蝶阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510073556.8A CN104633142B (zh) 2015-02-10 2015-02-10 四偏心双向密封蝶阀

Publications (2)

Publication Number Publication Date
CN104633142A true CN104633142A (zh) 2015-05-20
CN104633142B CN104633142B (zh) 2017-04-12

Family

ID=53212216

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510073556.8A Active CN104633142B (zh) 2015-02-10 2015-02-10 四偏心双向密封蝶阀

Country Status (1)

Country Link
CN (1) CN104633142B (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465384A (zh) * 2016-02-01 2016-04-06 无锡智能自控工程股份有限公司 全金属夹层密封环及应用其的阀板装置
CN107816555A (zh) * 2017-10-25 2018-03-20 唐山钢铁集团有限责任公司 一种大型阀门阀杆在线修复装置及方法
CN112324970A (zh) * 2020-11-23 2021-02-05 天津卡尔斯阀门股份有限公司 一种新型衬胶阀体
CN113280131A (zh) * 2021-06-04 2021-08-20 重庆川仪调节阀有限公司 三偏心全金属蝶阀的装配方法
CN120402644A (zh) * 2025-07-03 2025-08-01 温州德源阀门有限公司 双偏心蝶阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110869A (en) * 1980-12-26 1982-07-09 Okano Valve Seizo Kk Butterfly valve with metal valve seat
CN2184123Y (zh) * 1994-03-22 1994-11-30 徐宏智 单偏心液压球面锁紧蝶阀
CN201145045Y (zh) * 2007-11-09 2008-11-05 黄一立 一种四维四偏心密封蝶阀
CN202402667U (zh) * 2011-12-07 2012-08-29 沃川(上海)流体设备科技有限公司 四偏心硬软密封蝶阀
CN203717978U (zh) * 2014-02-26 2014-07-16 无锡和佳仪器仪表有限公司 一种防止密封圈快速磨损的四偏心蝶阀结构
CN203836245U (zh) * 2014-05-04 2014-09-17 环球阀门集团有限公司 四偏心全金属双向密封蝶阀
CN204533566U (zh) * 2015-02-10 2015-08-05 无锡智能自控工程股份有限公司 四偏心双向密封蝶阀

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110869A (en) * 1980-12-26 1982-07-09 Okano Valve Seizo Kk Butterfly valve with metal valve seat
CN2184123Y (zh) * 1994-03-22 1994-11-30 徐宏智 单偏心液压球面锁紧蝶阀
CN201145045Y (zh) * 2007-11-09 2008-11-05 黄一立 一种四维四偏心密封蝶阀
CN202402667U (zh) * 2011-12-07 2012-08-29 沃川(上海)流体设备科技有限公司 四偏心硬软密封蝶阀
CN203717978U (zh) * 2014-02-26 2014-07-16 无锡和佳仪器仪表有限公司 一种防止密封圈快速磨损的四偏心蝶阀结构
CN203836245U (zh) * 2014-05-04 2014-09-17 环球阀门集团有限公司 四偏心全金属双向密封蝶阀
CN204533566U (zh) * 2015-02-10 2015-08-05 无锡智能自控工程股份有限公司 四偏心双向密封蝶阀

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465384A (zh) * 2016-02-01 2016-04-06 无锡智能自控工程股份有限公司 全金属夹层密封环及应用其的阀板装置
CN107816555A (zh) * 2017-10-25 2018-03-20 唐山钢铁集团有限责任公司 一种大型阀门阀杆在线修复装置及方法
CN112324970A (zh) * 2020-11-23 2021-02-05 天津卡尔斯阀门股份有限公司 一种新型衬胶阀体
CN113280131A (zh) * 2021-06-04 2021-08-20 重庆川仪调节阀有限公司 三偏心全金属蝶阀的装配方法
CN113280131B (zh) * 2021-06-04 2023-04-28 重庆川仪调节阀有限公司 三偏心全金属蝶阀的装配方法
CN120402644A (zh) * 2025-07-03 2025-08-01 温州德源阀门有限公司 双偏心蝶阀
CN120402644B (zh) * 2025-07-03 2025-09-26 浙江德源阀门集团有限公司 双偏心蝶阀

Also Published As

Publication number Publication date
CN104633142B (zh) 2017-04-12

Similar Documents

Publication Publication Date Title
CN204533566U (zh) 四偏心双向密封蝶阀
CN104633142A (zh) 四偏心双向密封蝶阀
WO2017157134A1 (zh) 一种平底球阀
CN104653791A (zh) 分体式阀座自调节密封三偏心蝶阀
CN208041161U (zh) 三偏心双向密封蝶阀
CN110657308A (zh) 组合式多道端面密封旋转补偿器
CN114635973A (zh) 主蒸汽高温高压可更换阀座截止阀
CN112303275B (zh) 一种金属密封球阀
CN204985799U (zh) 一种提升式旋塞阀
CN102943885A (zh) 双向密封弹性密封三偏心密封蝶阀
CN202992205U (zh) 低负载型切断蝶阀
CN202927084U (zh) 双向密封弹性密封三偏心密封蝶阀
CN214222038U (zh) 蝶阀
CN206786027U (zh) 一种高温蝶阀门
CN105065701A (zh) 硬密封提升式闸塞阀及其控制方法
CN204553874U (zh) 四偏心硬密封蝶阀
CN105465475B (zh) 一种用于阀门的动配合泄漏控制器
CN211649126U (zh) 一种焊接浮动球阀
CN103016759A (zh) 低负载型切断蝶阀
CN204533568U (zh) 分体式阀座自调节密封三偏心蝶阀
CN205064868U (zh) 一种双驱动无摩擦硬密封蝶阀
CN103375595A (zh) 一种零摩擦双向金属密封蝶阀
CN202756640U (zh) 一种零摩擦双向金属密封蝶阀
CN201535359U (zh) 节能平衡阀
CN113202944A (zh) 一种深冷用方便在线维修的单阀座强制密封阀

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant