CN201884753U - 阀盖压力自密封闸阀 - Google Patents

阀盖压力自密封闸阀 Download PDF

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Publication number
CN201884753U
CN201884753U CN2010206752292U CN201020675229U CN201884753U CN 201884753 U CN201884753 U CN 201884753U CN 2010206752292 U CN2010206752292 U CN 2010206752292U CN 201020675229 U CN201020675229 U CN 201020675229U CN 201884753 U CN201884753 U CN 201884753U
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China
Prior art keywords
valve
stuffing box
packing
sealing
valve rod
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Expired - Fee Related
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CN2010206752292U
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Inventor
金志远
张德江
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ZHEJIANG OULAM VALVE TECHNOLOGY Co Ltd
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ZHEJIANG OULAM VALVE TECHNOLOGY Co Ltd
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Abstract

本实用新型涉及一种阀盖压力自密封闸阀,包括阀体、阀座、阀盖、阀杆、闸板、密封件和安装件,闸板固定安装在阀杆的下端,阀杆的上端与传动机构连接;主要是阀盖密封焊接在阀体上,在阀盖与阀杆之间设一填料箱,该填料箱与阀杆之间设置密封填料,所述密封填料由填料压盖压装在阀杆与填料箱之间的填料槽内;填料箱下端面制有朝着阀体内腔的喇叭口,填料箱上端由锁紧螺母固定在阀盖上端面内,当密封填料受磨损后介质推力压紧密封填料保持密封状态,其密封性能好。适用于石油、化工、电力等行业介质输送管道的阀门。

Description

阀盖压力自密封闸阀
技术领域
本实用新型涉及阀门领域,特别是关于一种闸阀。
背景技术
闸阀一般由阀体、阀座、阀盖、阀杆、闸板组成,闸板固定安装在阀杆下端,阀杆上端与传动机构连接,阀杆与阀盖之间由填料密封,填料由填料压盖压装在阀杆与阀盖之间的填料槽内。其主要缺点是在阀门启闭过程中阀杆对填料会生产磨损,长期使用后填料因磨损而发生泄漏,密封性能差。
发明内容
本实用新型的目的是针对现有技术存在的缺点,提供一种密封性能好的阀盖压力自密封闸阀。
本实用新型的技术方案包括阀体、阀座、阀盖、阀杆、闸板、密封件和安装件,闸板固定安装在阀杆的下端,阀杆的上端与传动机构连接;主要是阀盖密封焊接在阀体上,在阀盖与阀杆之间设一填料箱,该填料箱与阀杆之间设置密封填料,所述密封填料由填料压盖压装在阀杆与填料箱之间的填料槽内;填料箱下端面制有朝着阀体内腔的喇叭口,填料箱上端由锁紧螺母固定在阀盖上端面内。
本实用新型的优点是在阀盖与阀杆之间设一下端面带喇叭口的填料箱,阀腔内的介质对填料箱产生向上的推力,当密封填料受磨损后介质推力压紧密封填料保持密封状态,其密封性能好。
附图说明
图1是本实用新型的结构示意图。
具体实施方式
如图1所示的阀盖压力自密封闸阀,包括阀体1、阀座2、阀盖8、阀杆4、闸板3、密封件和安装件,闸板3固定安装在阀杆4的下端,阀杆4的上端与传动机构连接。阀盖8密封焊接在阀体1上,在阀盖8与阀杆4之间设一填料箱5,该填料箱5与阀杆4之间设置密封填料9,所述密封填料9由填料压盖10压装在阀杆4与填料箱5之间的填料槽内。填料箱5下端面制有朝着阀体1内腔的喇叭口,使介质压力对填料箱5下端面的喇叭口产生向上的推力。填料箱5上端由锁紧螺母11固定在阀盖8上端面内。
填料箱5下部外周具有外锥形斜面,在该外锥形斜面与阀体1内壁之间设一自紧密封圈6,该自紧密封圈6具有与填料箱5的外锥形斜面相互配合的内锥形斜面,在自紧密封圈6上端面与阀盖8下端面之间设密封圈压套7。

Claims (2)

1.一种阀盖压力自密封闸阀,包括阀体(1)、阀座(2)、阀盖(8)、阀杆(4)、闸板(3)、密封件和安装件,闸板(3)固定安装在阀杆(4)的下端,阀杆(4)的上端与传动机构连接;其特征是阀盖(8)密封焊接在阀体(1)上,在阀盖(8)与阀杆(4)之间设一填料箱(5),该填料箱(5)与阀杆(4)之间设置密封填料(9),所述密封填料(9)由填料压盖(10)压装在阀杆(4)与填料箱(5)之间的填料槽内;填料箱(5)下端面制有朝着阀体(1)内腔的喇叭口,填料箱(5)上端由锁紧螺母(11)固定在阀盖(8)上端面内。
2.根据权利要求1所述的阀盖压力自密封闸阀,其特征是填料箱(5)下部外周具有外锥形斜面,在该外锥形斜面与阀体(1)内壁之间设一自紧密封圈(6),该自紧密封圈(6)具有与填料箱(5)的外锥形斜面相互配合的内锥形斜面,在自紧密封圈(6)上端面与阀盖(8)下端面之间设密封圈压套(7)。
CN2010206752292U 2010-12-13 2010-12-13 阀盖压力自密封闸阀 Expired - Fee Related CN201884753U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899779A (zh) * 2014-03-05 2014-07-02 大丰市奥凯流体机械有限公司 压力自密封闸阀
CN113669472A (zh) * 2021-08-04 2021-11-19 凯瑞特阀业有限公司 整体锻制高密封闸阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899779A (zh) * 2014-03-05 2014-07-02 大丰市奥凯流体机械有限公司 压力自密封闸阀
CN113669472A (zh) * 2021-08-04 2021-11-19 凯瑞特阀业有限公司 整体锻制高密封闸阀
CN113669472B (zh) * 2021-08-04 2024-04-23 凯瑞特阀业集团有限公司 整体锻制高密封闸阀

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C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Valve cover pressure self-sealing gate valve

Effective date of registration: 20131021

Granted publication date: 20110629

Pledgee: Bank of Communications Ltd Wenzhou Yongjia branch

Pledgor: Zhejiang Oulam Valve Technology Co., Ltd.

Registration number: 2013990000762

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110629

Termination date: 20151213

EXPY Termination of patent right or utility model