CN103671935A - 多重密封结构氯气输送管道专用阀 - Google Patents

多重密封结构氯气输送管道专用阀 Download PDF

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Publication number
CN103671935A
CN103671935A CN201210318292.4A CN201210318292A CN103671935A CN 103671935 A CN103671935 A CN 103671935A CN 201210318292 A CN201210318292 A CN 201210318292A CN 103671935 A CN103671935 A CN 103671935A
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valve
taper
sealing structure
cover
bellows
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CN201210318292.4A
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English (en)
Inventor
田江
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Jiang Suhai Reaches Ship Valve Industry Co Ltd
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Jiang Suhai Reaches Ship Valve Industry Co Ltd
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Priority to CN201210318292.4A priority Critical patent/CN103671935A/zh
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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
    • 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
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/42—Valve seats
    • 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
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • 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
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped 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
    • 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
    • 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
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • 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
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube

Abstract

本发明公开了一种多重密封结构氯气输送管道专用阀，包括阀体、阀座、阀瓣、阀盖、阀杆、手轮，阀盖底部开有40～55度的锥孔，锥孔内设有波纹管组合件；波纹管组合件由空套在阀杆外围的波纹管和锥形盖帽组成；波纹管下端与阀杆密封固定连接，锥形盖帽固定连接在波纹管的上端；锥形盖帽的锥度方向与阀盖底部锥孔方向一致，其外锥面的角度比阀盖底部锥孔大4～10度；锥形盖帽下沿圆周平面与阀体、阀盖紧密压合在一起，其间设有聚氟乙烯密封垫；阀瓣端部设有锥形密封结构。本发明采用多重密封结构，能经受强烈腐蚀，能保证长时间安全无泄漏，可靠安全。

Description

多重密封结构氯气输送管道专用阀
技术领域
本发明涉及一种阀门，特别是一种氯气输送管道专用阀门，属于化工行业专用介质输送管道阀领域。
背景技术
以往，氯碱化工行业的氯气阀，通常为普通阀门。普通阀门在强腐蚀、有毒有害的工艺条件下，往往密封性能差，易泄漏，壳体易穿孔，使用寿命短，不能满足长期有效输送有毒介质的特殊要求。现在有人在阀门密封结构上进行了改进，但是，长期使用后，阀杆往往由于阀门的开启、关闭长时间的上、下动作，阀杆与填料长时间接触而产生磨损，仍然存在着泄漏的危险。
发明内容
本发明要解决的是现有技术中存在的不足，提供密封可靠，能经受强烈腐蚀，能保证长时间安全无泄漏的多重密封结构氯气输送管道专用阀。
本发明通过下述技术方案实现技术目标。
    多重密封结构氯气输送管道专用阀，包括阀体、阀座、阀瓣、阀盖、阀杆、手轮，其改进之处在于：所述阀盖底部开有40～55度的锥孔，所述锥孔内设有波纹管组合件；所述波纹管组合件由空套在阀杆外围的波纹管和锥形盖帽组成；所述波纹管下端与阀杆密封固定连接，锥形盖帽固定连接在波纹管的上端；所述锥形盖帽的锥度方向与阀盖底部锥孔方向一致，其外锥面的角度比阀盖底部锥孔大4～10度；所述锥形盖帽下沿圆周平面与阀体、阀盖紧密压合在一起，其间设有聚氟乙烯密封垫；所述阀瓣端部设有锥形密封结构。
作为本发明进一步改进，所述阀瓣端部锥形密封结构锥形角为65～75度；所述阀盖中部设有填料式密封结构，包括填料压块、填料,所述填料为V形密封圈；所述阀体为耐蚀合金钢材料；所述阀盖与阀体榫槽式密封连接；所述阀座上设有燕尾形槽，槽内填充聚氟乙烯树脂与金属基体构成一体。
本发明使用时，逆时针转动手轮带动阀杆直线上升，使波纹管压缩，同时，使浮动连接在阀杆端部的阀瓣离开阀体内腔的阀座密封面，使阀门打开；顺时针转动手轮带动阀杆直线下降，使波纹管拉伸，同时，使浮动连接在阀杆端部的阀瓣与阀座吻合，构成密封使阀门关闭；波纹管作为隔离介质与阀盖接触的屏障。
采用上述技术方案，使得本发明具有如下优点：
1、         多重密封更可靠。本发明比普通阀门增加了波纹管组合件，波纹管下端焊接在阀杆上，以防止氯气等强腐蚀的有毒介质侵蚀阀杆，其上端置于阀体与阀盖之间构成静密封，同时将用于隔开阀体和阀盖的锥形盖帽固定焊接在波纹管上端外围，还可以堵塞波纹管与阀杆之间可能存在的泄漏点，进一步提高了阀门的密封防泄漏性能。锥形盖帽下沿圆周平面与阀体、阀盖紧密结合，其间设有聚氟乙烯密封垫，可以进一步保证阀门的密封效果。同时，在阀瓣端部设置由锥形密封结构，达到双重密封双保险无内漏的效果。
2、         安全性更好。在阀盖中部设置填料密封结构，在填料室中置有模压成型的V形填料组合多层，上部采用填料压盖压紧构成填料室密封副，形成第二道上密封，可以进一步防止介质泄漏，提高阀门安全性；阀座上加工有马蹄形槽和燕尾形槽，在槽内压入聚氟乙烯树脂并经烧结后模压构成整体，使树脂与金属基体有机集合为一体，达到密封性能好，不变形，不脱落耐腐蚀的效果，解决了普通阀阀座树脂因低温收缩脱落，无法关闭阀门，造成内漏发生化工事故的难题。
附图说明
图1为本发明结构示意图。
图2为图1中的Ⅰ局部放大示意图。
具体实施方式
    下面根据附图并结合实施例对本发明作进一步说明。
    附图所示的多重密封结构氯气输送管道专用阀，包括阀体1、阀座2、阀瓣3、阀盖4、阀杆8、手轮10，阀盖4底部开有40～55度的锥孔，所述锥孔内设有波纹管组合件5，波纹管组合件5由空套在阀杆8外围的波纹管5.1和锥形盖帽5.2组成，波纹管5.1下端与阀杆8密封固定连接，本实施例中，波纹管5.1下端与阀杆8焊接连接，锥形盖帽5.2固定连接在波纹管5.1的上端；锥形盖帽5.2的锥度方向与阀盖4底部锥孔方向一致，本实施例中，锥形盖帽5.2的外锥面的角度比阀盖4底部锥孔大8度；锥形盖帽5.2下沿圆周平面与阀体1、阀盖4紧密压合在一起，其间设有聚氟乙烯密封垫6；阀瓣3端部设有锥形密封结构；本实施例中，阀瓣3端部锥形密封结构锥形角为65～75度；阀盖4中部设有填料式密封结构，包括填料压块7、填料9,填料9为V形密封圈；阀体1为耐蚀合金钢材料；阀盖4与阀体1榫槽式密封连接；阀座2上设有燕尾形槽，槽内填充聚氟乙烯树脂与金属基体构成一体。 

Claims (4)

1.一种多重密封结构氯气输送管道专用阀，包括阀体（1）、阀座（2）、阀瓣（3）、阀盖（4）、阀杆（8）、手轮（10），其特征在于：所述阀盖（4）底部开有40～55度的锥孔，所述锥孔内设有波纹管组合件（5）；所述波纹管组合件（5）由空套在阀杆（8）外围的波纹管（5.1）和锥形盖帽（5.2）组成；所述波纹管（5.1）下端与阀杆（8）密封固定连接，锥形盖帽（5.2）固定连接在波纹管（5.1）的上端；所述锥形盖帽（5.2）的锥度方向与阀盖（4）底部锥孔方向一致，其外锥面的角度比阀盖（4）底部锥孔大4～10度；所述锥形盖帽（5.2）下沿圆周平面与阀体（1）、阀盖（4）紧密压合在一起，其间设有聚氟乙烯密封垫（6）；所述阀瓣（3）端部设有锥形密封结构。
2.根据权利要求1所述的多重密封结构氯气输送管道专用阀，其特征在于：所述阀瓣（3）端部锥形密封结构锥形角为65～75度。
3.根据权利要求1～2之一所述的多重密封结构氯气输送管道专用阀，其特征在于：所述阀盖（4）中部设有填料式密封结构，包括填料压块（7）、填料（9）,所述填料（9）为V形密封圈；所述阀体（1）为耐蚀合金钢材料；所述阀盖（4）与阀体（1）榫槽式密封连接。
4.根据权利要求1～2之一所述的多重密封结构氯气输送管道专用阀，其特征在于：所述阀座（2）上设有燕尾形槽，槽内填充聚氟乙烯树脂与金属基体构成一体。
CN201210318292.4A 2012-09-02 2012-09-02 多重密封结构氯气输送管道专用阀 Pending CN103671935A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840848A (zh) * 2016-04-29 2016-08-10 江苏海达船用阀业有限公司 耐腐蚀快关阀
CN106931175A (zh) * 2015-12-30 2017-07-07 江苏海达船用阀业有限公司 耐超低温氯气输送截止阀
CN106931167A (zh) * 2015-12-30 2017-07-07 江苏海达船用阀业有限公司 新型耐高压截止阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106931175A (zh) * 2015-12-30 2017-07-07 江苏海达船用阀业有限公司 耐超低温氯气输送截止阀
CN106931167A (zh) * 2015-12-30 2017-07-07 江苏海达船用阀业有限公司 新型耐高压截止阀
CN105840848A (zh) * 2016-04-29 2016-08-10 江苏海达船用阀业有限公司 耐腐蚀快关阀

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Application publication date: 20140326