The utility model discloses a butterfly valve with an inflatable seat, including an actuator, a valve body, a valve stem and a valve plate. The inner wall of the valve is fixed with a ring rubber seat along the circumference of the valve. The interior of the rubber seat is provided with a cavity. The rubber valve seat is provided with an inflatable port and a deflation port, the inflator mouth, the leak mouth and the cavity of the rubber seat. The body is connected. The valve seat is made of rubber and installed with the valve body. The inner cavity of the valve seat can be inflated, and the air outlet and the air outlet are arranged outside the valve body. When the valve is opened, the valve is deflated first, the valve plate is separated from the valve seat, and no friction occurs, and the valve plate rotates and opens. When the valve is closed, the valve stem is turned first, the valve plate is closed, and then inflated, the valve seat is bulge, and is contacted with the edge of the valve plate, thereby sealing. The valve seat is made of rubber, which is a soft seal, reduces the wear and tear of solid material on the valve seat, and has good sealing performance.
【技术实现步骤摘要】
一种阀座为充气式的蝶阀
本技术涉及一种阀座为充气式的蝶阀。
技术介绍
应用于粉尘、颗粒等介质环境中的蝶阀,因介质为固态,会对蝶阀的阀座造成磨损,进而密封性变差,会卡堵,且阀板与阀座密封件之间硬碰硬摩察。阀板在开启和关闭时,摩擦力大,寿命短,且密封性能差。
技术实现思路
本技术的目的在于提供一种阀座为充气式的蝶阀,解决现有技术中用于粉尘、颗粒等介质环境中的蝶阀,阀座、阀板容易磨损,且密封性能差的技术问题。本技术为了解决上述技术问题,采用如下技术方案:一种阀座为充气式的蝶阀,包括执行器、阀体、阀杆和阀板,所述阀体内壁沿周向固定设置有环状橡胶阀座,橡胶阀座的内部开设有腔体,橡胶阀座上设置有充气口和泄气口,充气口、泄气口与橡胶阀座的腔体连通。阀座采用橡胶制成,与阀体安装,阀座内腔可以充气,阀体外有充气口、泄气口。当阀门打开时,先泄气,阀板与阀座分离,无摩擦,然后阀板旋转打开。当阀门关闭时,先转动阀杆关闭阀板,然后再充气,阀座鼓起,与阀板的边缘接触,进而密封。阀座采用橡胶制成,为软密封,减少固态物质对阀座的磨损,并且密封性好。进一步改进,所述阀体的内壁设置有连接件,连接件包括连接板和定位件,连接板和定位件固连,通过连接件将阀座与阀体连接在一起,防止阀座在使用中脱落。进一步改进,所述连接板为环形板,定位件呈筒状,连接板的外周面与阀体的内周面向切合,且固连;定位件的外周面与连接板的内周面向切合,且固连。进一步改进,所述连接板的宽度为0.5-3cm,定位件的高度为阀体高度的1/6-1/3,连接板的外周面位于阀体的中间部位,且连接板的内周面位于定位件的中间部位。设置在中间部位, ...
【技术保护点】
1.一种阀座为充气式的蝶阀,包括执行器、阀体、阀杆和阀板,其特征在于,所述阀体内壁沿周向固定设置有环状橡胶阀座,橡胶阀座的内部开设有腔体,橡胶阀座上设置有充气口和泄气口,充气口、泄气口与橡胶阀座的腔体连通。
【技术特征摘要】
1.一种阀座为充气式的蝶阀,包括执行器、阀体、阀杆和阀板,其特征在于,所述阀体内壁沿周向固定设置有环状橡胶阀座,橡胶阀座的内部开设有腔体,橡胶阀座上设置有充气口和泄气口,充气口、泄气口与橡胶阀座的腔体连通。2.根据权利要求1所述的阀座为充气式的蝶阀,其特征在于,所述阀体的内壁设置有连接件,连接件包括连接板和定位件,连接板和定位件固连。3.根据权利要求2所述的阀座为充气式的蝶阀,其特征在于,所述连接板为环形板,定位件呈筒状,连接板的外周面与阀体的内周面向切合,且固连;定位件的外周面与连接板的内周面向切合,且固连。4.根据权利要求3所述的阀座为充气式的蝶阀,其特征在于,所述连接板的宽度为0.5-3...
【专利技术属性】
技术研发人员:胡旭东,林富赟,谌华强,
申请(专利权)人:普雷沃流体控制科技芜湖有限公司,
类型:新型
国别省市:安徽,34
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