一种金属空心o形圈式卸灰球阀

Metal hollow O-shaped ring type ash discharging ball valve

Abstract

本发明涉及一种金属空心O形圈式卸灰球阀,包括有主阀体,所述的主阀体上方分布有上阀体,所述的主阀体内设有球体,球体上方设置有阀座;所述的球体两侧分布有阀轴,其特点是:所述球体与上阀体之间设置有压环,压环与阀座之间设有金属空心O形圈作为密封构件,使硬性阀座与球体保持一定正压力,始终处于柔性恒定压紧密封状态,形成浮动密封副。该方案可避免灰状介质夹杂其间而造成密封失效或启闭卡死。
The invention relates to a metal hollow O-shaped ring type ash discharging ball valve, which comprises a main valve body, wherein an upper valve body is distributed above the main valve body; a ball body is arranged in the main valve body; a valve seat is arranged above the ball body; and valve shafts are distributed on two sides of the ball body. The ball valve is characterized in that: a compression ring is arranged between the ball body and the upper valve body, and a metal hollow O-shaped ring serving as a sealing member is arranged between the compression ring and the valve seat, so that a rigid valve seat and the ball body keep a certain positive pressure and are always positioned in a flexible constant pressing and sealing state to form a floating sealing pair. By the scheme, an ash medium can be prevented from being mixed in the valve so as not to cause ineffective sealing or locked opening or closing.

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Patent Citations (5)

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