CN109681666A - 一种球阀 - Google Patents

一种球阀 Download PDF

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Publication number
CN109681666A
CN109681666A CN201910126025.9A CN201910126025A CN109681666A CN 109681666 A CN109681666 A CN 109681666A CN 201910126025 A CN201910126025 A CN 201910126025A CN 109681666 A CN109681666 A CN 109681666A
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valve
spool
shaft
valve body
ball valve
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CN201910126025.9A
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何泽淼
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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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0694—Spindle sealings
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

一种球阀由转轴密封圈、转轴、阀体、小阀衬、阀芯、阀衬、密封圈、阀盖组成，通过对球阀阀芯形腔的改进，即在传统阀芯圆柱通径的基础上增设了狭隘的过流通道，使得球阀流量的变化在小流量区域被放缓，狭隘过流通道为设置在阀芯过中心平面，自阀芯的一端孔口向另一端孔口斜向扩展的细槽，使得细槽切割后的剩余圆弧面旋转时仍足以封堵阀门密闭通径。并按工况调整球阀启闭角度，其流量特性比之现有球阀技术，拓展了小流量调控区间，以利于小流量变化的掌控，从而可以满足管路流动介质的换向切换，可以实现系统节流和局部范围内的流量调控。

Description

一种球阀
技术领域
本发明涉及一种球阀。
背景技术
球阀具有流体阻力小，结构紧凑，密封性好，操作灵活，维修方便等诸多优点，在工程中被广泛应用。目前的球阀从阀芯结构上来区别有O型和V型之分，O型球阀的阀芯为球体，结构对称，稳定性好，由阀杆或动力头带动转轴作90度的迂回运动，以实现阀门的开启或关闭。但O型球阀的流量特性曲线的斜率比较陡，对流量变化的调控不易把握，故O型球阀在管路中主要是用来做切断、分配和改变介质的流动方向。随着阀门技术的发展，后起之秀的V型球阀则具有节流和控制流量的功能，但由于V型球阀的阀芯结构约只有四分之一球体的空心球壳，且受加工工艺、热处理、力学性能等影响的制约，故不宜用于流动介质换向切换的场合。如何融合O型、V型两种球阀的优点，人们正在进行着不懈的努力。
发明内容
为了解决上述问题，本发明对球阀阀芯的形腔作了有效的改进，并按工况调整球阀启闭角度，其流量特性比之现有球阀技术，拓展了小流量调控区间，以利于小流量变化的掌控。本发明可以满足管路流动介质的换向切换，可以实现系统节流和局部范围内的流量调控。
本发明是这样实现的，它由转轴密封圈、转轴、阀体、小阀衬、阀芯、阀衬、密封圈、阀盖组成，所述的阀体近似为中心贯通的管状零件，一端设螺纹与管子连接，另一端设螺纹与阀盖连接，阀体中心设安装小阀衬的台阶，设安装阀芯的腔体；在安装阀芯位置处，设有垂直于阀体轴线供安装转轴的阶梯孔，转轴安装孔里端的弧面锪阶梯沉孔，转轴安装孔外端设有定位台阶，设有安装动力头的凸台，凸台平面上设有供连接用的螺纹孔。所述的阀盖近似为带台阶的螺纹套管，一端外螺纹与阀体固结，孔内侧设阀衬安装台阶，另一端设内螺纹与管子连接。所述的阀芯外形呈球状，中心形腔系在传统圆柱通径的基础上增设了狭隘的过流通道，使得球阀流量的变化在小流量区域被放缓，狭隘过流通道为设置在阀芯过中心平面，自阀芯的一端孔口向另一端孔口斜向扩展的细槽，并使得细槽切割后的剩余圆弧面旋转时仍足以封堵阀门密闭通径。在阀芯过中心且垂直细槽切割平面处设一个传递转轴扭矩的凹槽。所述的转轴为阶梯轴，直径大端与阀体阶梯孔里端沉孔的肩隔吻合，端部设传递力矩的扁势；中径与阀体阶梯孔中段动配合，设有安装转轴密封圈的沟槽；另一端设有与动力头传递力矩的凹槽，若采用阀杆驱动时，则可将凹槽改成扁势或方榫。
装配：将小阀衬扣上密封圈后装入阀体，将转轴扣上转轴密封圈后从阀体腔由内向外装入转轴安装孔，使转轴端部扁势与阀体中心线平行，将阀芯装入阀体，让转轴扁势落入阀芯凹槽内，再拧上设有密封圈和阀衬的阀盖。
附图说明
下面结合附图对本发明作进一步的说明。
图1为本发明沿转轴轴线方位的正视图。
图2为图1的A-A视图。
图3为图2的B-B视图。
图4为图2的C-C视图。
图5为本发明阀芯沿通径方向的正视图。
图6为图5的俯视图。
图7为图5的左视图。
图8为图5的E-E视图。
图9为图6的D-D视图。
图10为图5的F-F视图。
图11为阀芯的三维图。
图12是O型球阀的流量特性曲线示意图。
图13是本发明球阀的流量特性曲线示意图。
图中1、转轴密封圈；2、转轴；3、阀体；4、小阀衬；5、阀芯；6、阀衬；7、密封圈；8、阀盖；Q、球阀流量；α、球阀开度。
具体实施方式
本发明由转轴密封圈(1)、转轴(2)、阀体(3)、小阀衬(4)、阀芯(5)、阀衬(6)、密封圈(7)、阀盖(8)组成，所述的阀体(3)近似为中心贯通的管状零件，一端设螺纹与管子连接，另一端设螺纹与阀盖(8)连接，阀体(3)中心设安装小阀衬(4)的台阶，设安装阀芯(5)的腔体；在安装阀芯(5)位置处，设有垂直于阀体(3)轴线供安装转轴(2)的阶梯孔，转轴(2)安装孔里端的弧面锪阶梯沉孔，转轴(2)安装孔外端设有定位台阶，设有安装动力头的凸台，凸台平面上设有供连接用的螺纹孔。所述的阀盖(8)近似为带台阶的螺纹套管，一端外螺纹与阀体(3)固结，孔内侧设阀衬(6)安装台阶，另一端设内螺纹与管子连接。所述的阀芯(5)外形呈球状，中心形腔系在传统圆柱孔的基础上增设了狭隘的过流通道，使得球阀流量的变化在小流量区域被放缓，狭隘过流通道为设置在阀芯(5)过中心平面，自阀芯(5)的一端孔口向另一端孔口斜向扩展的细槽，并使得细槽切割后的剩余圆弧面旋转时仍足以封堵阀门密闭通径。在阀芯(5)过中心且垂直细槽切割平面处设一个传递转轴扭矩的凹槽。所述的转轴(2)为阶梯轴，直径大端与阀体(3)阶梯孔里端沉孔的肩隔吻合，端部设传递力矩的扁势；中径与阀体(3)阶梯孔中段动配合，设有安装转轴密封圈(1)的沟槽；另一端设有与动力头传递力矩的凹槽，若采用阀杆驱动时，则可将凹槽改成扁势或方榫。
装配：将小阀衬(4)扣上密封圈(7)后装入阀体(3)，将转轴(2)扣上转轴密封圈(1)后从阀体(3)腔由内向外装入转轴安装孔，使转轴(2)端部扁势与阀体(3)中心线平行，将阀芯(5)装入阀体(3)，让转轴(2)扁势落入阀芯(5)凹槽内，再拧上设有密封圈(7)和阀衬(6)的阀盖(8)。

Claims (2)

1.一种球阀，其特征是它由转轴密封圈、转轴、阀体、小阀衬、阀芯、阀衬、密封圈、阀盖组成，所述的阀体近似为中心贯通的管状零件，一端设螺纹与管子连接，另一端设螺纹与阀盖连接，阀体中心设安装小阀衬的台阶，设安装阀芯的腔体；在安装阀芯位置处，设有垂直于阀体轴线供安装转轴的阶梯孔，转轴安装孔里端的弧面锪阶梯沉孔，转轴安装孔外端设有定位台阶，设有安装动力头的凸台，凸台平面上设有供连接用的螺纹孔；所述的阀盖近似为带台阶的螺纹套管，一端外螺纹与阀体固结，孔内侧设阀衬安装台阶，另一端设内螺纹与管子连接；所述的转轴为阶梯轴，直径大端与阀体阶梯孔里端沉孔的肩隔吻合，端部设传递力矩的扁势；中径与阀体阶梯孔中段动配合，设有安装转轴密封圈的沟槽；另一端设有与动力头传递力矩的凹槽，若采用阀杆驱动时，则可将凹槽改成扁势或方榫。
2.根据权利1所述的一种球阀，其特征是所述的阀芯外形呈球状，中心形腔系在传统圆柱通径的基础上增设了狭隘的过流通道，狭隘过流通道为设置在阀芯过中心平面，自阀芯的一端孔口向另一端孔口斜向扩展的细槽，并使得细槽切割后的剩余圆弧面旋转时仍足以封堵阀门密闭通径，在阀芯过中心且垂直细槽切割平面处设一个传递转轴扭矩的凹槽。
CN201910126025.9A 2019-02-13 2019-02-13 一种球阀 Pending CN109681666A (zh)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881718A (en) * 1987-11-27 1989-11-21 Jamesbury Corporation Ball control valve
US20030205685A1 (en) * 2002-02-13 2003-11-06 Whang Cheol H. Finite control hydraulic valve
EP2695816A1 (en) * 2012-08-10 2014-02-12 Tetra Laval Holdings & Finance S.A. Shutter for a valve and corresponding valve for controlling an air flow and relative valve
CN103742669A (zh) * 2014-01-15 2014-04-23 浙江欧意阀门有限公司 球阀的球芯
US20140209828A1 (en) * 2013-01-31 2014-07-31 Belimo Holding Ag Flow characterizing device and ball valve with such a flow characterizing device
US20140264127A1 (en) * 2013-03-14 2014-09-18 Denso Corporation Valve device
FR3007490A1 (fr) * 2013-06-25 2014-12-26 Sainte Lizaigne Sa Robinet a boisseau spherique a faible couple de manoeuvre et piece de cerclage de siege adaptee
CN104728463A (zh) * 2013-12-18 2015-06-24 上海宝钢工业技术服务有限公司 球阀具有等百分比流通特性的阀芯球体
US20160123479A1 (en) * 2013-06-12 2016-05-05 Belimo Holding Ag Control valve
CN105736729A (zh) * 2016-04-28 2016-07-06 超达阀门集团股份有限公司 一种防堵耐冲刷双向密封调节阀
CN209781726U (zh) * 2019-02-13 2019-12-13 何泽淼 一种球阀

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881718A (en) * 1987-11-27 1989-11-21 Jamesbury Corporation Ball control valve
US20030205685A1 (en) * 2002-02-13 2003-11-06 Whang Cheol H. Finite control hydraulic valve
EP2695816A1 (en) * 2012-08-10 2014-02-12 Tetra Laval Holdings & Finance S.A. Shutter for a valve and corresponding valve for controlling an air flow and relative valve
US20140209828A1 (en) * 2013-01-31 2014-07-31 Belimo Holding Ag Flow characterizing device and ball valve with such a flow characterizing device
US20140264127A1 (en) * 2013-03-14 2014-09-18 Denso Corporation Valve device
US20160123479A1 (en) * 2013-06-12 2016-05-05 Belimo Holding Ag Control valve
FR3007490A1 (fr) * 2013-06-25 2014-12-26 Sainte Lizaigne Sa Robinet a boisseau spherique a faible couple de manoeuvre et piece de cerclage de siege adaptee
CN104728463A (zh) * 2013-12-18 2015-06-24 上海宝钢工业技术服务有限公司 球阀具有等百分比流通特性的阀芯球体
CN103742669A (zh) * 2014-01-15 2014-04-23 浙江欧意阀门有限公司 球阀的球芯
CN105736729A (zh) * 2016-04-28 2016-07-06 超达阀门集团股份有限公司 一种防堵耐冲刷双向密封调节阀
CN209781726U (zh) * 2019-02-13 2019-12-13 何泽淼 一种球阀

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