CN201992124U - 气动活塞式反吹风切换阀 - Google Patents

气动活塞式反吹风切换阀 Download PDF

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Publication number
CN201992124U
CN201992124U CN2011200207704U CN201120020770U CN201992124U CN 201992124 U CN201992124 U CN 201992124U CN 2011200207704 U CN2011200207704 U CN 2011200207704U CN 201120020770 U CN201120020770 U CN 201120020770U CN 201992124 U CN201992124 U CN 201992124U
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valve
fixedly connected
piston type
pneumatic piston
switching valve
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Expired - Fee Related
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CN2011200207704U
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Inventor
蒋建荣
何生平
孙洪杰
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HANGZHOU JIANENG VALVES CO Ltd
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HANGZHOU JIANENG VALVES CO Ltd
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Abstract

一种气动活塞式反吹风切换阀,涉及一种适用于各种对介质自动切换或切断的场合。它采用带三个流道口的三通阀体,下部流道口固定连接着进反吹气的接管,阀体上部固定连接下阀盖,在下阀盖上端固定连接着上阀盖及与保温箱连接用的安装板,两个阀芯固定于阀杆上,处于阀体下腔位置,阀杆下端伸入接管的导向套内,上端伸出上阀盖并固定连接在活塞式执行机构输出轴上,随活塞的上下移动而动作,并带动阀芯做上下切换。本实用新型整机达到双向零泄漏,小于2秒的开、关速度,大幅度提升了过滤器的吹扫效果。

Description

气动活塞式反吹风切换阀
技术领域:
本实用新型涉及一种适用于各种对介质自动切换或切断的场合,特别适用于三聚氰胺过滤器反吹风的自动控制的气动活塞式反吹风切换阀。
背景技术:
反吹风切换阀作为三聚氰胺生产的关键阀门之一,目前普遍存在着内漏严重、切换速度慢、填料外漏及易卡易堵等问题,已严重影响到过滤器的使用效率,导致产量下降。
发明内容:
本实用新型提供一种达到双向零泄漏,小于2秒的开、关速度,大幅度提升了过滤器的吹扫效果的气动活塞式反吹风切换阀。
本实用新型是通过如下技术方案来实现的:一种气动活塞式反吹风切换阀,其主要技术特征是所述切换阀采用带三个流道口的三通阀体,下部流道口固定连接着进反吹气的接管,阀体上部固定连接下阀盖,在下阀盖上端固定连接着上阀盖及与保温箱连接用的安装板,两个阀芯固定于阀杆上,处于阀体下腔位置,阀杆下端伸入接管的导向套内,上端伸出上阀盖并固定连接在活塞式执行机构输出轴上,随活塞的上下移动而动作,并带动阀芯做上下切换。
本实用新型采用全新的三通阀体结构,上、下双导向、密封面堆焊司钛莱硬质合金,长接管保温,上阀盖则使用双层填料外加散热结构,执行机构选用大推力高速气缸,再配以大流量防爆电磁阀和快速排气阀。整机达到双向零泄漏,小于2秒的开、关速度,大幅度提升了过滤器的吹扫效果。
附图说明:
图1为本实用新型的结构示意图。
具体实施方式:
图中,1-接管,2-双头螺柱,3-平垫片,4-螺母,5-接管密封圈,6-阀芯,7-阀体,8-阀盖密封圈,9-双头螺柱,10-平垫片,11-螺母,12-下阀盖,13-上阀盖密封圈,14-密封垫片,15-安装板,16-双头螺柱,17-平垫片,18-螺母,19-上阀盖,20-下填料,21-中填料,22-隔套,23-上填料,24-衬套,25-螺钉,26-气动活塞式执行机构。
如图1所示,本气动活塞式反吹风切换阀采用带三个流道口的三通阀体7,下部流道口固定连接着进反吹气的接管1,阀体上部固定连接下阀盖12,在下阀盖上端固定连接着上阀盖19及与保温箱连接用的安装板15,两个阀芯6、6-1固定于阀杆27上,处于阀体下腔位置,阀杆下端伸入接管的导向套内,上端伸出上阀盖并固定连接在气动活塞式执行机构26输出轴上,随活塞的上下移动而动作,并带动阀芯做上下切换。当接管密封面关闭时,介质由A口入,B口出,C口关闭;阀芯向上动作,阀体密封面关闭,反吹气由C口入,A口出,B口关闭,实施快速吹扫。

Claims (1)

1.一种气动活塞式反吹风切换阀,其特征在于所述切换阀采用带三个流道口的三通阀体,下部流道口固定连接着进反吹气的接管,阀体上部固定连接下阀盖,在下阀盖上端固定连接着上阀盖及与保温箱连接用的安装板,两个阀芯固定于阀杆上,处于阀体下腔位置,阀杆下端伸入接管的导向套内,上端伸出上阀盖并固定连接在活塞式执行机构输出轴上,随活塞的上下移动而动作,并带动阀芯做上下切换。
CN2011200207704U 2011-01-21 2011-01-21 气动活塞式反吹风切换阀 Expired - Fee Related CN201992124U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128283A (zh) * 2011-01-21 2011-07-20 杭州佳能阀门有限公司 一种气动活塞式反吹风切换阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128283A (zh) * 2011-01-21 2011-07-20 杭州佳能阀门有限公司 一种气动活塞式反吹风切换阀

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