CN201043627Y - 一种排烟机密封止回阀 - Google Patents

一种排烟机密封止回阀 Download PDF

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Publication number
CN201043627Y
CN201043627Y CNU2007201164678U CN200720116467U CN201043627Y CN 201043627 Y CN201043627 Y CN 201043627Y CN U2007201164678 U CNU2007201164678 U CN U2007201164678U CN 200720116467 U CN200720116467 U CN 200720116467U CN 201043627 Y CN201043627 Y CN 201043627Y
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Prior art keywords
valve
valve block
valve seat
safety check
check valve
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Expired - Fee Related
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CNU2007201164678U
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English (en)
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鲍志平
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Individual
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Individual
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Abstract

一种排烟机密封止回阀,它包括已有由阀座(1)和铰接在阀座(1)上的阀片(2)构成的止回阀,在阀片(2)上和阀片(2)与阀座(1)相铰接的孔隙处设有密封膏层(3),在密封膏层(3)上粘贴有包敷在阀片(2)上的塑料膜(4)。它具有阀片闭合时与阀座之间接触严密、防倒烟效果好的优点,它结构简单造价低,密封效果好。

Description

一种排烟机密封止回阀
技术领域
本实用新型涉及排烟机止回阀。
背景技术
现有排烟机止回阀的阀片闭合时与阀座之间接触不严密,防倒烟效果不够好。
实用新型内容
本实用新型的目的是提供一种阀片闭合时与阀座之间接触严密、防倒烟效果好的排烟机密封止回阀。
本实用新型的技术解决方案是:它包括已有由阀座和铰接在阀座上的阀片构成的止回阀,在阀片上和阀片与阀座相铰接的孔隙处设有密封膏层,在密封膏层上粘贴有包敷在阀片上的塑料膜。
本实用新型的技术效果是:它具有阀片闭合时与阀座之间接触严密、防倒烟效果好的优点,它结构简单造价低,密封效果好。
附图说明
附图为本实用新型实施例立体半剖视图。
具体实施方式
如图所示,它包括已有由阀座1和铰接在阀座1上的阀片2构成的止回阀,在阀片2上和阀片2与阀座1相铰接的孔隙处设有密封膏层3,在密封膏层3上粘贴有包敷在阀片2上的塑料膜4。密封膏层3为黄干油层。阀片2包括左阀片和右阀片,左阀片和右阀片通过塑料膜4连为一体。

Claims (3)

1.一种排烟机密封止回阀,它包括已有由阀座(1)和铰接在阀座(1)上的阀片(2)构成的止回阀,其特征在于:在阀片(2)上和阀片(2)与阀座(1)相铰接的孔隙处设有密封膏层(3),在密封膏层(3)上粘贴有包敷在阀片(2)上的塑料膜(4)。
2.如权利要求1所述的一种排烟机密封止回阀,其特征在于所述密封膏层(3)为黄干油层。
3.如权利要求1所述的一种排烟机密封止回阀,其特征在于所述阀片(2)包括左阀片和右阀片,左阀片和右阀片通过塑料膜(4)连为一体。
CNU2007201164678U 2007-06-22 2007-06-22 一种排烟机密封止回阀 Expired - Fee Related CN201043627Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201164678U CN201043627Y (zh) 2007-06-22 2007-06-22 一种排烟机密封止回阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201164678U CN201043627Y (zh) 2007-06-22 2007-06-22 一种排烟机密封止回阀

Publications (1)

Publication Number Publication Date
CN201043627Y true CN201043627Y (zh) 2008-04-02

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Family Applications (1)

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CNU2007201164678U Expired - Fee Related CN201043627Y (zh) 2007-06-22 2007-06-22 一种排烟机密封止回阀

Country Status (1)

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CN (1) CN201043627Y (zh)

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Granted publication date: 20080402