CN103542152A - 氯气用贯流式止回阀 - Google Patents

氯气用贯流式止回阀 Download PDF

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CN103542152A
CN103542152A CN201310531333.2A CN201310531333A CN103542152A CN 103542152 A CN103542152 A CN 103542152A CN 201310531333 A CN201310531333 A CN 201310531333A CN 103542152 A CN103542152 A CN 103542152A
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valve
flap
valve seat
rod
clack
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CN103542152B (zh
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毛春龙
毛金根
杨慧平
陈善俊
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Jiangsu Jinshengyuan Special Valve Co Ltd
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Jiangsu Jinshengyuan Special 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/04—Arrangements for preventing erosion, not otherwise provided for
    • 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
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves

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

Abstract

氯气用贯流式止回阀，涉及阀门设计技术领域，包括阀体、阀座、阀瓣，阀座螺纹连接在阀体下端内；在阀体与阀座之间设置缠绕式密封垫片，缠绕式密封垫片设置在阀体与阀座螺纹连接处的下方；阀瓣设置在阀座上方；阀瓣与阀座之间密封连接；阀瓣包括阀瓣本体、阀瓣杆体，阀瓣杆体连体设置在阀瓣本体的中心上方，在阀瓣杆体内设有盲孔；阀瓣本体的下表面为向上凸起的拱面，阀瓣本体的上表面为向下倾斜的坡面；阀体内腔设有阀体中部支架，阀瓣杆体上套置导向螺母，导向螺母与阀体中部支架螺纹连接。本发明设计新颖，结构合理，解决了流体介质的冲刷，保证使用性能，提高使用寿命，具有密封性能优越，止回效果好，精准到位。

Description

氯气用贯流式止回阀
技术领域
本发明涉及阀门设计技术领域，特别是氯气用贯流式止回阀。
背景技术
目前，国内化工行业及其它领域管路上使用的止回阀，为普通止回阀。结构古老，笨重，性能不能满足工况的使用要求，经常出现因止回阀阀瓣不能很好地回位，使介质回流造成损失甚至事故的发生。特别是在氯碱化工企业的氯气泵上口，由于止回阀止不住，流体回落使泵反方向工作，造成设备损坏，而影响系统瘫痪。
发明内容
本发明目的在于针对以上问题，提供一种能合理解决流体介质的冲刷，保证使用性能，提高使用寿命的氯气用贯流式止回阀，
本发明包括阀体、阀座、阀瓣，所述阀座螺纹连接在阀体下端内；在所述阀体与阀座之间设置缠绕式密封垫片，所述缠绕式密封垫片设置在阀体与阀座螺纹连接处的下方；所述阀瓣设置在阀座上方；所述阀瓣与阀座之间密封连接；所述阀瓣包括阀瓣本体、阀瓣杆体，所述阀瓣杆体连体设置在阀瓣本体的中心上方，在所述阀瓣杆体内设有盲孔；所述阀瓣本体的下表面为向上凸起的拱面，所述阀瓣本体的上表面为向下倾斜的坡面；所述阀体内腔设有阀体中部支架，所述阀瓣杆体上套置导向螺母，所述导向螺母与阀体中部支架螺纹连接。
本发明工作原理为：通过介质即管道压力的作用来实现阀门开始和关闭。当介质升高一定的压力阀瓣升起，当压力下降或失去压力，阀瓣借助自身的重量和阀体内部的介质压力使阀瓣迅速下滑，使阀门关闭，防止介质回流。
本发明为竖直安装，阀瓣本体底部为向上凸起的拱面，上部为向下倾斜的坡面，可保证阀门打开介质对密封面冲刷力小，同时关闭时由于上部的锥形，阀腔的流体介质迅速返回冲击阀座密封面周围，使该区域不容易遗留物，保证密封面的清洁。阀座与阀体采用螺纹连接，并采用金属缠绕式垫片密封，可靠保证其密封效果，同时阀座底面又作为与管道连接的密封面，与管道连接受力以后进一步确保介质不外漏，形成保险密封。阀瓣通过导向螺母与阀体配合，可靠保证其配合精度和上下滑动的效果，使阀瓣不受介质压力的波动而影响升降。本发明设计新颖，结构合理，解决了流体介质的冲刷，保证使用性能，提高使用寿命，具有密封性能优越，止回效果好，精准到位。
本发明所述阀座和阀瓣的密封面上分别喷焊有耐腐蚀合金。
本发明在所述阀座密封面设置马蹄形槽，在所述马蹄形槽内压制烧结聚四氟乙烯密封料，在所述阀瓣密封面喷焊有耐腐蚀合金。
附图说明
图1为本发明的结构示意图。
图2为本发明的另一种结构示意图。
具体实施方式
如图1所示，本发明包括阀体1、阀座2、阀瓣3，阀座2螺纹连接在阀体1下端内；在阀体1与阀座2之间设置缠绕式密封垫片4，缠绕式密封垫片4设置在阀体1与阀座2螺纹连接处的下方；阀瓣3设置在阀座2上方；阀瓣3与阀座2之间密封连接，在阀座2和阀瓣3的密封面上分别喷焊有耐腐蚀合金5；阀瓣3包括阀瓣本体3-1、阀瓣杆体3-2，阀瓣杆体3-2连体设置在阀瓣本体3-1的中心上方，在阀瓣杆体3-2内设有盲孔6；阀瓣本体3-1的下表面为向上凸起的拱面3-1-1，阀瓣本体3-1的上表面为向下倾斜的坡面3-1-2；阀体1内腔设有阀体中部支架7，阀瓣杆体3-2上套置导向螺母8，导向螺母8与阀体中部支架7螺纹连接。
如图2所示，在阀座2密封面设置马蹄形槽9，在马蹄形槽9内压制烧结聚四氟乙烯密封料10，在阀瓣3密封面喷焊有耐腐蚀合金5。

Claims (3)

1.氯气用贯流式止回阀，包括阀体、阀座、阀瓣，其特征在于：所述阀座螺纹连接在阀体下端内；在所述阀体与阀座之间设置缠绕式密封垫片，所述缠绕式密封垫片设置在阀体与阀座螺纹连接处的下方；所述阀瓣设置在阀座上方；所述阀瓣与阀座之间密封连接；所述阀瓣包括阀瓣本体、阀瓣杆体，所述阀瓣杆体连体设置在阀瓣本体的中心上方，在所述阀瓣杆体内设有盲孔；所述阀瓣本体的下表面为向上凸起的拱面，所述阀瓣本体的上表面为向下倾斜的坡面；所述阀体内腔设有阀体中部支架，所述阀瓣杆体上套置导向螺母，所述导向螺母与阀体中部支架螺纹连接。
2.根据权利要求1所述的氯气用贯流式止回阀，其特征在于：所述阀座和阀瓣的密封面上分别喷焊有耐腐蚀合金。
3.根据权利要求1所述的氯气用贯流式止回阀，其特征在于：在所述阀座密封面设置马蹄形槽，在所述马蹄形槽内压制烧结聚四氟乙烯密封料，在所述阀瓣密封面喷焊有耐腐蚀合金。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1008548A1 (ru) * 1977-05-23 1983-03-30 Войсковая Часть 11284 Клапан
CN201547255U (zh) * 2009-11-09 2010-08-11 陆平 一种缓闭止回阀
CN201739579U (zh) * 2010-06-30 2011-02-09 淄博高新区新科技术促进中心 氯用贯流止回阀
CN202109039U (zh) * 2011-06-16 2012-01-11 江苏明江阀业有限公司 一种贯流式止回阀
CN203516878U (zh) * 2013-11-01 2014-04-02 江苏金晟元特种阀门有限公司 氯气用贯流式止回阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1008548A1 (ru) * 1977-05-23 1983-03-30 Войсковая Часть 11284 Клапан
CN201547255U (zh) * 2009-11-09 2010-08-11 陆平 一种缓闭止回阀
CN201739579U (zh) * 2010-06-30 2011-02-09 淄博高新区新科技术促进中心 氯用贯流止回阀
CN202109039U (zh) * 2011-06-16 2012-01-11 江苏明江阀业有限公司 一种贯流式止回阀
CN203516878U (zh) * 2013-11-01 2014-04-02 江苏金晟元特种阀门有限公司 氯气用贯流式止回阀

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