CN201772097U - 消防隔膜阀 - Google Patents

消防隔膜阀 Download PDF

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Publication number
CN201772097U
CN201772097U CN2010201967705U CN201020196770U CN201772097U CN 201772097 U CN201772097 U CN 201772097U CN 2010201967705 U CN2010201967705 U CN 2010201967705U CN 201020196770 U CN201020196770 U CN 201020196770U CN 201772097 U CN201772097 U CN 201772097U
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China
Prior art keywords
valve
fire
valve body
diaphragm
weir
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Expired - Fee Related
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CN2010201967705U
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Inventor
洪安春
洪永春
许文清
夏玉琴
郑超坤
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Shanghai nuclear valve Limited by Share Ltd
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SHANGHAI EHO VALVE MANUFACTURING CO LTD
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Abstract

本实用新型属于阀门。一种消防隔膜阀,包含隔膜、阀体和阀盖,其特征在于:该阀盖与阀体相连接的法兰盘面上设置有容纳隔膜边缘的凹陷区和位于该凹陷区外围的堰槽式密封结构,该堰槽式密封结构内充填有防火垫圈。解决隔膜四周侧面与外界接触,切断火苗从阀盖与阀体结合处进入阀内的通路的技术问题。

Description

消防隔膜阀 
技术领域:
本实用新型属于阀门,尤其是具有防火功能的消防隔膜阀。 
背景技术:
现有隔膜阀的隔膜周缘是由阀盖将其压紧固定在阀体的法兰面上,所以隔膜周缘的外侧面是暴露于外界的(参见图1)。一旦隔膜阀所在的场所发生火灾,大火就会烧烤隔膜外露部分,使其损伤而失去应有的功能,火苗从阀体和阀盖处的隙处窜入阀内,最终导至阀门泄漏。 
实用新型内容:
本实用新型的目的在于提供一种消防隔膜阀,解决隔膜四周侧面与外界接触,切断火苗从阀盖与阀体结合处进入阀内的通路的技术问题。 
本实用新型解决上述技术问题的技术方案是: 
一种消防隔膜阀,包含隔膜、阀体和阀盖,其特征在于:该阀盖与阀体相连接的法兰盘面上设置有容纳隔膜边缘的凹陷区和位于该凹陷区外围的堰槽式密封结构,该堰槽式密封结构内充填有防火垫圈。 
本实用新型将隔膜四周边缘置于设置在阀盖与阀体相连接的法兰盘面上的凹陷区内使隔膜周缘完全不与外界接触,又在该凹陷区外围设置充填有防火垫圈的堰槽式密封结构又将上、下法兰盘面间的缝隙完全堵塞,彻底杜绝了火源与易燃的隔膜接触的途径,既达到密封要求又防止了其燃烧损毁,保证阀门的安全使用。 
附图说明:
图1是现有隔膜阀的隔膜在阀盖和阀体连接法兰间安装示意图。 
图2是本实用新型的半剖示意图。 
图3是图2中的局部I放大图。 
具体实施方式:
请参阅图2所示,本实用新型包含隔膜6、阀体5和阀盖4。隔膜6置于阀腔内,其中心部固定在与阀杆2底部连接的阀瓣3上。阀盖4与阀体5相连接的法兰面上设置有凹陷区7,隔膜6的四周边缘置于该凹陷区7内,当拧紧固定螺栓/柱8时,将隔膜6的四周边缘夹紧于阀体5与阀盖4的法兰盘面之间。随阀杆2顶部的手轮1旋转,通过阀杆2和阀盖4上的螺纹机构,带动隔膜中心部上下运动完成阀的开启或关闭。 
在阀盖4和阀体5连接的法兰面上位于该凹陷区7的外围,设置有由堰91、槽92和防火垫圈93组成的堰槽式防火密封结构9(参见图3),该堰91突入槽92内将防火垫圈93压紧。所述的堰91既可以如图3所示设置在阀盖4上,也可以设置在阀体5上,对应的槽92则设置在阀体5上或阀盖4上。 
本实用新型既使易遇火燃烧的橡胶隔膜不与火焰直接相遇,又堵塞了火焰可进入的通路,是一个本质安全防火的消防隔膜阀。 

Claims (1)

1.一种消防隔膜阀,包含隔膜、阀体和阀盖,其特征在于:该阀盖与阀体相连接的法兰盘面上设置有容纳隔膜边缘的凹陷区和位于该凹陷区外围的堰槽式密封结构,该堰槽式密封结构内充填有防火垫圈。 
CN2010201967705U 2010-05-14 2010-05-14 消防隔膜阀 Expired - Fee Related CN201772097U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106032845A (zh) * 2015-03-16 2016-10-19 上海核阀门制造有限公司 一种具有抗震性能的核电用气动隔膜阀结构
CN106885011A (zh) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 一种核级手动隔膜阀
CN108757990A (zh) * 2018-07-12 2018-11-06 上海核阀门股份有限公司 可远距离检修的隔膜阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106032845A (zh) * 2015-03-16 2016-10-19 上海核阀门制造有限公司 一种具有抗震性能的核电用气动隔膜阀结构
CN106885011A (zh) * 2017-04-17 2017-06-23 上海阀门五厂有限公司 一种核级手动隔膜阀
CN108757990A (zh) * 2018-07-12 2018-11-06 上海核阀门股份有限公司 可远距离检修的隔膜阀

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Address after: 201823 Shanghai Bao Qian Road, Lane 5888, Lane 8, No.

Patentee after: Shanghai nuclear valve Limited by Share Ltd

Address before: 201823 Shanghai Bao Qian Road, Lane 5888, Lane 8, No.

Patentee before: Shanghai EHO Valve Manufacturing Co.,Ltd.

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

Granted publication date: 20110323

Termination date: 20180514