双阻尼蝶式止回阀制造技术

技术编号:14597053 阅读:141 留言:0更新日期:2017-02-09 01:17
一种双阻尼蝶式止回阀,阀体的左、右侧分别有阀轴座,阀轴座之间有阀轴,阀体内圆周有相配合的蝶板,蝶板上有阻尼阀,阻尼阀有在蝶板上的阻尼阀孔,阻尼阀孔上有相配合的阻尼阀板,阀轴由左、右阀轴相连组成,左阀轴的右端有右阀轴的轴座,阻尼阀板固定连在右阀轴上,右阀轴连有右阻尼液压缸,蝶板面的左侧固定连在左阀轴上,左阀轴连有左阻尼液压缸,蝶板面的右侧用右铰接套铰接在右阀轴上。当管路中介质倒流时,介质流可推动蝶板关闭,蝶板在左阻尼液压缸的阻尼作用下关闭,蝶板全关闭后,蝶板上的阻尼阀因右阻尼液压缸的阻尼作用而缓慢关闭,避免尺寸和质量较大的蝶板在快速关闭中产生的具有破坏性的水锤现象和与阀体产生较强的机械碰撞。

Double damping butterfly check valve

A double damping butterfly valve, the left and right valve body are respectively provided with a valve between the valve seat shaft, shaft seat valve shaft, the valve body is matched with the circular disc, a damping valve disc, damping valve with damping valve hole on the disc, the valve plate is matched with damping damping the valve hole of the valve shaft, the left and right valve shaft, the right end of the left valve shaft shaft seat right valve shaft, the valve plate is fixedly connected with a damping right valve shaft, right valve shaft connected with right damping hydraulic cylinder, the butterfly plate is fixed on the left side of the left valve shaft connected to the left. The valve shaft is connected with the left damping hydraulic cylinder, butterfly plate right with the right set of hinged hinged on the right valve shaft. When the pipeline in the medium back, medium flow can promote the disc closing, the butterfly plate closed in the damping effect of damping the left hydraulic cylinder, the butterfly plate is closed, the damping valve disc due to the damping effect of damping hydraulic cylinder and the right slow shut down to avoid damaging water hammer size and larger mass the butterfly plate in the fast closing and mechanical collision strong body produced.

【技术实现步骤摘要】

本技术涉及一种蝶式止回阀,特别是一种蝶式止回阀的蝶板阻尼装置。
技术介绍
蝶式止回阀是依靠所用的管路中介质流动而自动开、闭蝶板让介质只能正流不能倒流的阀门。蝶式止回阀有圆筒形阀体,阀体的左、右侧分别有阀轴座,左、右阀轴座之间有阀轴,阀体内圆周有相配合的蝶板,蝶板面的左、右侧分别用铰接套铰接在阀轴上。蝶式止回阀安装在流体管路中使用。当管路中介质正流时,介质流可正向推开铰接在阀轴上的蝶板,使蝶式止回阀开启,当管路中介质倒流时,介质流可反向推动铰接在阀轴上的蝶板,使蝶式止回阀快速关闭,防止介质倒流。为避免蝶式止回阀快速关闭时,在管路中产生具有破坏性的水锤现象,现有技术中,蝶式止回阀的蝶板上有阻尼阀。阻尼阀有在蝶板上的阻尼阀孔,阻尼阀孔上有相配合的阻尼阀板,阻尼阀板固定连在阀轴上,阀轴连有阻尼液压缸。当管路中介质倒流反向推动蝶板快速关闭后,蝶板上的阻尼阀因阻尼液压缸的阻尼作用而缓慢关闭,避免管路中产生具有破坏性的水锤现象。对于口径较大的蝶式止回阀,当管路中介质倒流反向推动蝶板快速关闭时,由于蝶板尺寸和质量较大,也会产生一定的具有破坏性的水锤现象,蝶板与阀体会产生较强的机械碰撞而损坏。专利技本文档来自技高网...

【技术保护点】
一种双阻尼蝶式止回阀,有圆筒形阀体,阀体的左、右侧分别有阀轴座,左、右阀轴座之间有阀轴,阀体内圆周有相配合的蝶板,蝶板上有阻尼阀,阻尼阀有在蝶板上的阻尼阀孔,阻尼阀孔上有相配合的阻尼阀板,其特征在于:阀轴由左、右阀轴相连组成,左阀轴的右端有右阀轴左端的轴座,阻尼阀板固定连在右阀轴上,右阀轴连有右阻尼液压缸,蝶板面的左侧固定连在左阀轴上,左阀轴连有左阻尼液压缸,蝶板面的右侧用右铰接套铰接在右阀轴上。

【技术特征摘要】
1.一种双阻尼蝶式止回阀,有圆筒形阀体,阀体的左、右侧分别有阀轴座,左、右阀轴座之间有阀轴,阀体内圆周有相配合的蝶板,蝶板上有阻尼阀,阻尼阀有在蝶板上的阻尼阀孔,阻尼阀孔上有相配合的阻尼阀板,其特征在于...

【专利技术属性】
技术研发人员:孙殿玉王瑞孙凤飞崔晓龙柳方娜
申请(专利权)人:铁岭天工阀门科技有限公司
类型:新型
国别省市:辽宁;21

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