CN108286614B - 一种低流阻长寿命弹性密封偏心旋塞阀 - Google Patents

一种低流阻长寿命弹性密封偏心旋塞阀 Download PDF

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CN108286614B
CN108286614B CN201810190343.7A CN201810190343A CN108286614B CN 108286614 B CN108286614 B CN 108286614B CN 201810190343 A CN201810190343 A CN 201810190343A CN 108286614 B CN108286614 B CN 108286614B
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plug
valve
seal
cock
valve gap
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CN108286614A (zh
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李树勋
杨全庆
朱禄
李延昭
徐晓刚
王彦磊
李长江
魏志钦
孙华甫
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Henan Gaoshan Valve Co ltd
Lanzhou University of Technology
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Henan Gaoshan Valve Co ltd
Lanzhou University of Technology
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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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/0407—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 cylindrical 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
    • F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
    • 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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/045—Particular coverings and materials
    • 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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/0457—Packings
    • F16K5/0478—Packings on the 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
    • F16K5/04—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 cylindrical surfaces; Packings therefor
    • F16K5/0457—Packings
    • F16K5/0485—Spindle sealing
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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

Abstract

一种低流阻长寿命弹性密封偏心旋塞阀，包括阀体、阀盖、旋塞，所述阀盖通过通过O型圈、螺栓与阀体紧固结合在一起，所述旋塞上轴杆穿过上垫片、上防砂轴封填料、设置在阀盖的中心轴孔内的上轴套、V型填料函以及填料压盖与阀盖相结合，旋塞下轴杆穿过下垫片、下防砂轴封填料、下轴套安装在阀体底部的沉孔中，其特征在于：所述的旋塞包括外侧开有若干纵横凹槽的旋塞基体，以及包覆在旋塞基体表面的橡胶层，且过流面为平面结构，旋塞与阀座密封面接触形成密封，且旋塞以偏心方式设置，通过转动旋塞上杆，旋塞与阀座密封面接触形成密封。

Description

一种低流阻长寿命弹性密封偏心旋塞阀
技术领域
本发明涉及一种偏心旋塞阀，主要用于城市污水、工业污水、泥浆及清水等需要调节或截流的领域，特别是涉及一种低流阻长寿命弹性密封偏心旋塞阀。
背景技术
弹性密封偏心旋塞阀是一种新型结构旋塞阀，其具有良好的密封性能和耐蚀性能。但是，目前常规弹性密封偏心旋塞阀旋塞流道不规则，因而导致流体阻力大，阀内紊流严重的现象,且包覆橡胶与旋塞基体附着力较小，阀体与旋塞摩擦力较大，密封面因磨损造成产品泄露严重。
发明内容
本发明的目的正是针对上述现有技术中所存在的不足之处而提供一种低流阻长寿命弹性密封偏心旋塞阀。
本发明的低流阻长寿命弹性密封偏心旋塞阀括阀体、阀盖、旋塞，所述阀盖通过通过O型圈、螺栓与阀体紧固结合在一起，所述旋塞上轴杆穿过上垫片、上防砂轴封填料、设置在阀盖的中心轴孔内的上轴套、V型填料函以及填料压盖与阀盖相结合，旋塞下轴杆穿过下垫片、下防砂轴封填料、下轴套安装在阀体底部的沉孔中；所述的旋塞包括外侧开有若干纵横凹槽（增加包覆橡胶层的附着力）的旋塞基体，以及包覆在旋塞基体表面的橡胶层，且过流面为平面结构，且旋塞以偏心方式设置，旋塞偏心距e由下式确定：
式中：θ为旋塞阀密封面夹角，β为密封面与中心线夹角，L为包胶厚度；
密封压缩系数ε由下式确定：
式中：q MF 为必须密封比压，E为橡胶弹性模量。
本发明的有益效果如下：
1.旋塞流道为平面，不仅达到强度要求而且流阻小，降低阀内流体的紊流问题；
2.旋塞基体上不同密度的纵横槽，增加了橡胶的附着力，提高了阀门的使用寿命；
3.合理的的偏心设计使得阀门密封行程中摩擦角较小，减小了橡胶剪切应力，提高了阀门使用寿命。
附图说明
图1是本发明的整体结构示意图。
图2是本发明的旋塞结构示意图。
图3是图2是侧视图。
图4是图2的A-A剖视图。
图5是图2的B-B剖视图。
图6是本发明的偏心设计示意图。
图中序号：1是阀体，2是下防砂轴封填料，3是下轴套，4是下垫片，5是旋塞，6是阀盖，7是O型圈，8是上防砂轴封填料，9是上轴套，10是V型填料函，11是填料压盖，12是用于连接阀盖与阀体的螺栓，13是支架螺栓孔，14是用于固定填料压盖的螺栓，15是上垫片。
具体实施方式
如图1、2、3、4、5所示，本发明的低流阻长寿命弹性密封偏心旋塞阀括阀体1、阀盖6、旋塞5，所述阀盖6通过通过O型圈7、螺栓14与阀体1紧固结合在一起，所述旋塞5上轴杆穿过上垫片15、上防砂轴封填料8、设置在阀盖6的中心轴孔内的上轴套9、V型填料函10以及填料压盖11与阀盖6相结合，旋塞5下轴杆穿过下垫片4、下防砂轴封填料2、下轴套3安装在阀体1底部的沉孔中；所述的旋塞5包括外侧开有若干纵横凹槽（增加包覆橡胶层的附着力）的旋塞基体，以及包覆在旋塞基体表面的橡胶层，且过流面为平面结构（可减小流体流动阻力），通过转动旋塞上轴杆，旋塞5与阀座密封面接触形成密封；且旋塞5以偏心方式设置，旋塞偏心距e由下式确定：
式中：θ为旋塞阀密封面夹角，β为密封面与中心线夹角，L为包胶厚度（参见图6）；
密封压缩系数ε由下式确定：
式中：q MF 为必须密封比压，E为橡胶弹性模量。
本发明的低流阻长寿命弹性密封偏心旋塞阀使用时介质由阀体1左侧流入阀内，旋转旋塞5上杆，带动旋塞5旋转，由于科学合理的偏心设计旋塞5在开启的过程中迅速脱离阀座，介质从旋塞5内侧进入阀腔，旋塞过流面平面设计减小流体流动阻力。

Claims (1)

1.一种低流阻长寿命弹性密封偏心旋塞阀，包括阀体（1）、阀盖（6）、旋塞（5），所述阀盖（6）通过O型圈（7）、螺栓（14）与阀体（1）紧固结合在一起，所述旋塞（5）上轴杆穿过上垫片（15）、上防砂轴封填料（8）、设置在阀盖（6）的中心轴孔内的上轴套（9）、V型填料函（10）以及填料压盖（11）与阀盖（6）相结合，旋塞（5）下轴杆穿过下垫片（4）、下防砂轴封填料（2）、下轴套（3）安装在阀体（1）底部的沉孔中，其特征在于：所述的旋塞（5）包括外侧开有若干纵横凹槽的旋塞基体，以及包覆在旋塞基体表面的橡胶层，且过流面为平面结构，旋塞（5）与阀座密封面接触形成密封，且旋塞（5）以偏心方式设置，旋塞偏心距e由下式确定：
，
式中：θ为旋塞阀密封面夹角，β为密封面与中心线夹角，L为包胶厚度；
密封压缩系数ε由下式确定：
，
式中：q MF 为必须密封比压，E为橡胶弹性模量。
CN201810190343.7A 2018-03-08 2018-03-08 一种低流阻长寿命弹性密封偏心旋塞阀 Active CN108286614B (zh)

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Publication number Priority date Publication date Assignee Title
CN109555887B (zh) * 2019-01-24 2024-02-09 河南省高山阀门有限公司 一种低流阻轻型偏心旋塞阀
CN109611576B (zh) * 2019-01-24 2024-01-26 河南省高山阀门有限公司 一种强橡胶附着力偏心旋塞阀阀塞
CN112253781A (zh) * 2020-10-10 2021-01-22 特尔阀门高科技有限公司 一种多偏心旋转阀

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FR1353868A (fr) * 1963-04-16 1964-02-28 Homestead Valve Mfg Co Robinet à tournant en forme de secteur de sphère tronqué propre à s'appliquer contre un siège circulaire sans frotter contre ce dernier
CN2442049Y (zh) * 2000-10-17 2001-08-08 浙江良精阀门集团有限公司 偏心式旋塞阀
CN101839348A (zh) * 2010-05-18 2010-09-22 宜兴市旭日冶金制造有限公司 转动阀板偏心距选取方法及双偏心蝶阀
CN204533623U (zh) * 2015-01-19 2015-08-05 四川华宇石油钻采装备有限公司 一种偏心式旋塞阀
CN207975276U (zh) * 2018-03-08 2018-10-16 河南省高山阀门有限公司 一种低流阻长寿命弹性密封偏心旋塞阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1353868A (fr) * 1963-04-16 1964-02-28 Homestead Valve Mfg Co Robinet à tournant en forme de secteur de sphère tronqué propre à s'appliquer contre un siège circulaire sans frotter contre ce dernier
CN2442049Y (zh) * 2000-10-17 2001-08-08 浙江良精阀门集团有限公司 偏心式旋塞阀
CN101839348A (zh) * 2010-05-18 2010-09-22 宜兴市旭日冶金制造有限公司 转动阀板偏心距选取方法及双偏心蝶阀
CN204533623U (zh) * 2015-01-19 2015-08-05 四川华宇石油钻采装备有限公司 一种偏心式旋塞阀
CN207975276U (zh) * 2018-03-08 2018-10-16 河南省高山阀门有限公司 一种低流阻长寿命弹性密封偏心旋塞阀

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