CN201028020Y - 先导式中高压闸阀 - Google Patents

先导式中高压闸阀 Download PDF

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Publication number
CN201028020Y
CN201028020Y CNU2007201162916U CN200720116291U CN201028020Y CN 201028020 Y CN201028020 Y CN 201028020Y CN U2007201162916 U CNU2007201162916 U CN U2007201162916U CN 200720116291 U CN200720116291 U CN 200720116291U CN 201028020 Y CN201028020 Y CN 201028020Y
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China
Prior art keywords
valve
valve core
spool
pilot
core
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Expired - Fee Related
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CNU2007201162916U
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English (en)
Inventor
朱力艳
王左一
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Priority to CNU2007201162916U priority Critical patent/CN201028020Y/zh
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Priority to PCT/CN2008/070509 priority patent/WO2008141545A1/zh
Priority to JP2010600016U priority patent/JP3160465U/ja
Priority to KR2020097000022U priority patent/KR20100002164U/ko
Priority to US12/601,528 priority patent/US20110266471A1/en
Anticipated expiration legal-status Critical
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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
    • F16K3/02—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 flat sealing faces; Packings therefor
    • F16K3/16—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 flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—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 flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F16K3/188—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 flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of hydraulic forces
    • 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
    • F16K3/02—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 flat sealing faces; Packings therefor
    • F16K3/16—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 flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—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 flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/04—Devices for relieving the pressure on the sealing faces for sliding valves

Abstract

本实用新型公开了一种先导式中高压闸阀，旨在提供一种先导式中高压闸阀：该阀通过先导卸荷方式，有效的解决由于流体压力造成的阀门开启困难和汽蚀损坏；包括压盖、阀杆、阀体、先导卸荷阀、阀芯体、阀芯、预压弹簧、密封圈、同心限位挡、螺栓、阀芯阻尼孔；阀体的底部带有对阀芯体限位的同心限位挡；压盖由螺栓装在阀体上，阀杆与手轮总成相连接，阀杆下端与先导卸荷阀及阀芯体相联接；阀芯体内装有预压弹簧，阀芯装在阀芯体内，阀芯端面设有阀芯阻尼孔，其端面作为密封面可设计成球面，锥面或平面；适于对中高压流体通断控制。

Description

先导式中高压闸阀
技术领域
本实用新型涉及一种先导式中高压闸阀；属阀门技术领域。
背景技术
目前，闸阀绝大多数均以楔式闸板或平行闸板依靠流体压力及楔紧力对闸门进出口密封为主。因为其运动方向与流体垂直，因而当压力较高，通径较大时，在开启瞬间操纵力大，密封面易损坏。同时，阀板在开启瞬间因汽蚀而影响寿命。为此，有很多专利技术采用了在阀板和阀口堆焊不同的高硬材料，但仍不能很有效地解决上述问题。
发明内容
为了克服上述不足，本实用新型的目的在于提供一种先导式中高压闸阀；该阀通过先导卸荷的方式，有效的解决了由于流体压力造成的阀门开启困难和汽蚀损坏。
本实用新型解决其技术问题所采用的技术方案：它由扁螺母、手轮总成、压盖、阀杆、阀体、先导卸荷阀、阀芯体、阀芯、预压弹簧、密封圈、同心限位挡、螺栓、阀芯阻尼孔组成；阀体的底部带有对阀芯体限位的同心限位挡。手轮总成由扁螺母装在压盖上，压盖由螺栓装在阀体上，阀杆与手轮总成相连接，阀杆下端与先导卸荷阀及阀芯体相连接；阀芯体与先导卸荷阀联接在一起；阀芯体内装有预压弹簧，阀芯装在阀芯体内，阀芯端面设有阀芯阻尼孔，其端面作为密封面可设计成球面，锥面或平面。
本实用新型的有益效果是：阀杆控制先导阀的开启和关闭。当需要打开时，先导阀先行打开溢流，使阀芯迅速打开卸压，从而有效的解决闸阀开启力大和汽蚀损坏；适于对中高压流体通断控制。
附图说明
下面结合附圈和实施例对本实用新型进一步说明。
图1是本实用新型先导式中高压闸阀总体结构示意图
图中标号
1、扁螺母        2、手轮总成         3、压盖
4、阀杆          5、阀体             6、先导卸荷阀
7、预压弹簧      8、阀芯             9、阀芯体
10、密封圈       11、同心限位挡      12、螺栓
13、阀芯阻尼孔
具体实施方式
请参阅图1；它由扁螺母(1)、手轮总成(2)、压盖(3)、阀杆(4)、阀体(5)、先导卸荷阀(6)、阀芯体(9)、阀芯(8)、预压弹簧(7)、密封圈(10)、同心限位挡(11)、螺栓(12)、阀芯阻尼孔(13)组成；阀体(5)的底部带有对阀芯体限位的同心限位挡(11)。手轮总成(2)由扁螺母(1)装在压盖(3)上，压盖(3)由螺栓(12)装在阀体(5)上，阀杆(4)与手轮总成(2)相连接，阀杆(4)下端与先导卸荷阀(6)及阀芯体(9)相联接；阀芯体(9)内装有预压弹簧(7)，阀芯(8)装在阀芯体(9)内，阀芯(8)端面设有阀芯阻尼孔(13)，其端面作为密封面可设计成球面，锥面或平面。
当阀杆(4)向下运动，阀芯体(9)到达阀体同心限位挡(11)处，由导阀弹簧提供的力使先导卸荷阀(6)关闭。压力流体通过阀芯阻尼孔(13)进入阀芯体(9)，在流体压力和预压弹簧(7)力的作用下，阀芯体(9)压向阀门出口，阀芯(8)压向阀门进口密封面，从而使阀门控制的压力流体隔断。当阀杆(4)向上运动，当阀芯体(9)上先导卸荷阀(6)压力低于阀门进口压力时，先导卸荷阀(6)开启溢流，同时，阀芯(8)由于压差作用下向内缩回，使阀门控制的压力流体迅速泄压并随着阀杆(4)带动阀芯体(9)和阀芯(8)向上使阀门轻松打开。

Claims (3)

1.一种先导式中高压闸阀；包括扁螺母(1)、手轮总成(2)、压盏(3)、阀杆(4)、阀体(5)、先导卸荷阀(6)、阀芯体(9)、阀芯(8)、预压弹簧(7)、密封圈(10)；其特征在于：阀杆(4)下端与先导卸荷阀(6)及阀芯体(9)相联接；阀芯体(9)内装有预压弹簧(7)。
2.根据权利要求1所述的先导式中高压闸阀；其特征在于：阀体(5)的底部带有对阀芯体限位的同心限位挡(11)。
3.根据权利要求1所述的先导式中高压闸阀；其特征在于：阀芯(8)装在阀芯体(9)内，阀芯(8)端面设有阀芯阻尼孔(13)，其端面作为密封面设计成球面，锥面或平面。
CNU2007201162916U 2007-05-24 2007-05-24 先导式中高压闸阀 Expired - Fee Related CN201028020Y (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CNU2007201162916U CN201028020Y (zh) 2007-05-24 2007-05-24 先导式中高压闸阀
PCT/CN2008/070509 WO2008141545A1 (fr) 2007-05-24 2008-03-16 Robinet-vanne piloté à pression moyenne-haute
JP2010600016U JP3160465U (ja) 2007-05-24 2008-03-16 パイロット中高圧力ゲートバルブ
KR2020097000022U KR20100002164U (ko) 2007-05-24 2008-03-16 선도식 중고압 게이트 밸브
US12/601,528 US20110266471A1 (en) 2007-05-24 2008-03-16 Piloted middle-high pressure gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201162916U CN201028020Y (zh) 2007-05-24 2007-05-24 先导式中高压闸阀

Publications (1)

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CN201028020Y true CN201028020Y (zh) 2008-02-27

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US (1) US20110266471A1 (zh)
JP (1) JP3160465U (zh)
KR (1) KR20100002164U (zh)
CN (1) CN201028020Y (zh)
WO (1) WO2008141545A1 (zh)

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WO2008141545A1 (fr) * 2007-05-24 2008-11-27 Liyan Zhu Robinet-vanne piloté à pression moyenne-haute
CN102094986A (zh) * 2011-01-23 2011-06-15 邱金全 超高压微扭矩无泄漏阀门
CN102155572A (zh) * 2011-04-27 2011-08-17 北京众博达石油科技有限公司 用于电磁阀的阀芯阻尼装置
CN102537392A (zh) * 2012-03-06 2012-07-04 苏州道森钻采设备股份有限公司 先导式闸阀
CN102954241A (zh) * 2012-11-14 2013-03-06 张建伟 压力密封先导式超高压闸阀
CN103925382A (zh) * 2014-03-25 2014-07-16 南通市电站阀门有限公司 一种先导式电站闸阀
CN104534114A (zh) * 2015-01-26 2015-04-22 浙江德卡控制阀仪表有限公司 先导式双向双闸板高压闸阀

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CN101865342B (zh) * 2010-07-27 2013-01-09 浙江瑞格铜业有限公司 表前阀中伸缩管与阀体的连接结构及连接方法
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CN107061776A (zh) * 2017-04-25 2017-08-18 重庆科特工业阀门有限公司 强制双密封平板闸阀
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008141545A1 (fr) * 2007-05-24 2008-11-27 Liyan Zhu Robinet-vanne piloté à pression moyenne-haute
CN102094986A (zh) * 2011-01-23 2011-06-15 邱金全 超高压微扭矩无泄漏阀门
WO2012097539A1 (zh) * 2011-01-23 2012-07-26 Qiu Jinquan 超高压微扭矩无泄漏阀门
CN102094986B (zh) * 2011-01-23 2013-06-12 邱金全 超高压微扭矩无泄漏阀门
CN102155572A (zh) * 2011-04-27 2011-08-17 北京众博达石油科技有限公司 用于电磁阀的阀芯阻尼装置
CN102155572B (zh) * 2011-04-27 2012-09-05 北京众博达石油科技有限公司 用于电磁阀的阀芯阻尼装置
CN102537392A (zh) * 2012-03-06 2012-07-04 苏州道森钻采设备股份有限公司 先导式闸阀
CN102537392B (zh) * 2012-03-06 2013-03-20 苏州道森钻采设备股份有限公司 先导式闸阀
CN102954241A (zh) * 2012-11-14 2013-03-06 张建伟 压力密封先导式超高压闸阀
CN102954241B (zh) * 2012-11-14 2014-02-12 张建伟 压力密封先导式超高压闸阀
CN103925382A (zh) * 2014-03-25 2014-07-16 南通市电站阀门有限公司 一种先导式电站闸阀
CN104534114A (zh) * 2015-01-26 2015-04-22 浙江德卡控制阀仪表有限公司 先导式双向双闸板高压闸阀

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Publication number Publication date
JP3160465U (ja) 2010-07-01
US20110266471A1 (en) 2011-11-03
KR20100002164U (ko) 2010-03-03
WO2008141545A1 (fr) 2008-11-27

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