CN105042134B - 快速切断阀 - Google Patents

快速切断阀 Download PDF

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Publication number
CN105042134B
CN105042134B CN201510366050.6A CN201510366050A CN105042134B CN 105042134 B CN105042134 B CN 105042134B CN 201510366050 A CN201510366050 A CN 201510366050A CN 105042134 B CN105042134 B CN 105042134B
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valve
valve body
self
current limiting
limiting plate
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CN105042134A (zh
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黄福成
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JIANGSU JINGWEI VALVE Co Ltd
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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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Sliding Valves (AREA)

Abstract

本发明公开了一种快速切断阀，涉及管道输送技术领域，包括有阀体和阀芯，所述阀体的两端分别装有进口接管和出口接管，所述阀体的内侧间隔设置有两条弧形环槽；所述阀芯包括有阀杆，所述阀杆近所述出口接管的一端设有阀塞和与所述阀体滑动连接的导向限流板，所述导向限流板上设有多个限流孔，所述阀塞上装有密封圈；在所述阀杆的另一端装有自锁板，所述自锁板上设有多个通孔，所述自锁板的外侧沿圆周分布有多个限位孔，所述限位孔内装有弹簧和弹珠，所述弹珠与近所述进口接管的所述弧形环槽相抵。与现有技术相比，本发明快速切断阀结构简单，制造成本低。

Description

快速切断阀
技术领域
本发明涉及管道输送技术领域，尤其是一种用于供气、供液管道的快速切断阀。
背景技术
人们日常生活中所用的燃气、水等资源主要采用管道输送，为保证安全输送，在用于供气、供液的输送管道上安装快速切断阀，当输送管道发生泄漏，特别是爆管时，能快速关闭阀口，切断气体或液体的供应，避免造成环境污染，保护人们的生命财产安全。目前常用的快速切断阀结构复杂，制造成本高。
发明内容
本发明所要解决的技术问题是提供一种快速切断阀，以解决常用的快速切断阀结构复杂，制造成本高的问题。
为了解决上述问题，本发明采用的技术方案是：这种快速切断阀，包括有阀体和阀芯，所述阀体的两端分别装有进口接管和出口接管，所述阀体的内侧间隔设置有两条弧形环槽；所述阀芯包括有阀杆，所述阀杆近所述出口接管的一端设有阀塞和与所述阀体滑动连接的导向限流板，所述导向限流板上设有多个限流孔，所述阀塞上装有密封圈；在所述阀杆的另一端装有自锁板，所述自锁板上设有多个通孔，所述自锁板的外侧沿圆周分布有多个限位孔，所述限位孔内装有弹簧和弹珠，所述弹珠与近所述进口接管的所述弧形环槽相抵。
上述快速切断阀技术方案中，更具体的技术方案还可以是：所述阀塞的外端设有导向锥。
进一步的，所述导向限流板的数量为两件，两件所述导向限流板的限流孔错开设置。
由于采用了上述技术方案，本发明与现有技术相比具有如下有益效果：
1、本发明自锁板的外侧沿圆周分布有多个限位孔，限位孔内装有弹簧和弹珠，弹珠与近进口接管的弧形环槽相抵；当连接出口接管的下游管道发生爆管时，该快速切断阀出口端的压力迅速下降，进口端的压力大于出口端的压力，阀体内的流质流动速度加快，推动阀芯向出口端移动，阀塞伸入出口接管的管口，快速切断管道内的流质输送，自锁板移动到另一条弧形环槽处，弹珠与该弧形环槽相抵，该快速切断阀结构简单，制造成本低。
2、阀塞的外端设有导向锥，避免阀塞伸入出口接管的管口时产生偏移；导向限流板的数量为两件，将两件导向限流板的限流孔错开设置，可调节流量。
附图说明
图1是本发明实施例的结构示意图。
图2是本发明实施例的锁紧螺母的结构示意图。
图3是本发明实施例的自锁板的结构示意图。
图4是图3的A—A处的剖视图。
图5是本发明实施例的导向限流板的结构示意图。
图6是图5的俯视图。
图7是本发明实施例的阀杆的结构示意图。
图8是本发明快速切断阀处于关闭位置的结构示意图。
具体实施方式
下面结合附图实施例对本发明作进一步详述：
如图1所示的一种快速切断阀，包括有阀体2和阀芯，阀体2的两端分别装有进口接管1和出口接管11，阀体2具有大直径腔和小直径腔，阀体2小直径腔的一端与进口接管1连接，阀体2大直径腔的内侧间隔设置有两条弧形环槽；阀芯包括有阀杆8，阀杆8近出口接管11的一端设有阀塞8-1和导向限流板9，导向限流板9套装在阀杆8上并与阀体2滑动连接，导向限流板9上开设有八个限流孔，如图5、图6所示；本实施例的导向限流板9的数量为两件，两件导向限流板9的限流孔错开放置；阀塞8-1上装有密封圈10，阀塞8-1的外端连结有导向锥8-2，如图7所示；在阀杆8的另一端套装有自锁板4，自锁板4上开设有四个通孔，自锁板4的外侧沿圆周分布有四个限位孔，如图3、图4所示；限位孔内装有弹簧6和弹珠5，弹珠5与近进口接管1的弧形环槽相抵，在自锁板4与导向限流板9之间装有套在阀杆8上的限位套7，阀杆8穿出自锁板4的外端处装有锁紧螺母3，锁紧螺母3上开设有穿装锁紧杆的径向孔，如图2所示。
本发明快速切断阀安装在输送管道上，当连接出口接管11的下游管道发生爆管时，该快速切断阀出口端的压力迅速下降，进口端的压力大于出口端的压力，阀体2内的流质流动速度加快，推动阀芯向出口端移动，阀塞8-1伸入出口接管11的管口，如图8所示；快速切断管道内的流质输送，自锁板4移动到另一条弧形环槽处，弹珠5与该弧形环槽相抵，该快速切断阀结构简单，制造成本低。

Claims (3)

1.一种快速切断阀，包括有阀体（2）和阀芯，其特征在于：所述阀体（2）的两端分别装有进口接管（1）和出口接管（11），所述阀体（2）的内侧间隔设置有两条弧形环槽；所述阀芯包括有阀杆（8），所述阀杆（8）近所述出口接管（11）的一端设有阀塞（8-1）和与所述阀体（2）滑动连接的导向限流板（9），所述导向限流板（9）上设有多个限流孔，所述阀塞（8-1）上装有密封圈（10）；在所述阀杆（8）的另一端装有自锁板（4），所述自锁板（4）上设有多个通孔，所述自锁板（4）的外侧沿圆周分布有多个限位孔，所述限位孔内装有弹簧（6）和弹珠（5），所述弹珠（5）与近所述进口接管（1）的所述弧形环槽相抵。
2.根据权利要求1所述的快速切断阀，其特征在于：所述阀塞（8-1）的外端设有导向锥（8-2）。
3.根据权利要求1或2所述的快速切断阀，其特征在于：所述导向限流板（9）的数量为两件，两件所述导向限流板（9）的限流孔错开设置。
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CN106704658B (zh) * 2017-01-09 2022-11-15 黄福成 双向自动切断阀
CN107061766A (zh) * 2017-05-16 2017-08-18 南通艾迈特机械有限公司 一种自锁式阀门
CN109381987B (zh) * 2018-12-07 2024-06-21 云南云天化石化有限公司 一种异辛烷废酸除臭系统
CN112524311B (zh) * 2020-11-30 2021-12-03 宁波方太厨具有限公司 进水接头及包含其的燃气热水器

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CN101435518A (zh) * 2008-12-09 2009-05-20 华中科技大学 一种液位控制阀
CN203131138U (zh) * 2013-03-22 2013-08-14 胜利油田胜机石油装备有限公司 一种调压阀

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