本文目录一览:
- 1、单向阀有哪些种类
- 2、液控单向阀的种类有哪些?
- 3、单向阀结构及其分类安装
- 4、方向控制阀的种类可以分为哪些?
单向阀有哪些种类
单向阀在结构上可分为:旋启式单向阀(有单瓣式、双瓣式和多瓣式)、升降式单向阀(有立式和卧式)和蝶式单向阀(微小缓闭蝶式单向阀、蝶式缓冲单向阀、对夹式双瓣单向阀、微阻缓闭蝶式单向阀)三种。而单向阀在连接上又可分为:螺纹连接、法兰连接和焊接连接。
液控单向阀的种类有哪些?
液控单向阀分成两类:有普通单向阀和液控单向阀。普通单向阀只允许液流向一个方向通过。液控单向阀既有普通单向阀的功能,并且只要在远程控制口通以一定压力的控制油液,液流反向也能通过。在工程应用中常用两个液控单向阀组成液压锁。
液控单向阀也叫负载保护阀,用以下几个方式来控制载荷的运动:
当管道和胶管损坏时,防止载荷突然下落。
防止由于方向控制阀阀芯卸油而造成载荷慢慢下落。
当载荷在处于抵压或失控状态时,提供平稳可调的运动。
当方向控制阀突然关闭时,提供平稳可调的运动。
你也可以百度一下“奕春液压机械”,可以找到他们的公司网站,里面有很多关于这方面的知识。
单向阀结构及其分类安装
导语:单向阀是什么?单向阀又有什么作用?小编相信很多人是之一次听到这个词,对它可谓是一无所知,所以小编觉得这篇文章的价值很高,希望通过接下来小编对单向阀的一系列介绍能让大家对单向阀有初步的了解和深刻的认识。以至于在日后的生活中遇到关于单向阀的问题时不会束手无措。
什么是单向阀?
所谓单向阀是安装在水平管道内使得流动的物质只能从进水口流进保持流动并防止出水口的介质不能回流的止回阀。在安装时应注意一定的事项,之一是流动介质的流动方向,介质的正常流动方向应该与阀体上的指示方向一致,如果方向错误就会导致介质正常流动截止;第二是关闭止回阀时管道中产生一定的压力,压力到达一定程度时会造成阀门、管路和甚至设备损坏;第三是止回阀的底阀必须安装在管路的底部。
单向阀的选用:
1)单向阀只适合控制液体介质的流动,对于较大固体颗粒和粘连性较强的介质不适合用单向阀。有低压要求的单向阀有蝶式单向阀和隔膜单向阀以及立式升降单向阀,中低压要求的有无磨损球形上回阀,低压要求的则是蝶式单向阀和隔膜式单向阀。
2)容易产生流水冲击的低压管路选用隔膜式单向阀,此时单向阀上的隔膜能很好的抵消流体介质回流时形成的水击。
3)蝶式单向阀适用在对关闭单向阀时有无水击要求的管路。
单向阀的结构:
1)按结构划分:升降式单向阀、蝶式单向阀、旋启式单向阀。
2)升降式单向阀:立式单向阀、卧式单向阀。
3)旋启式单向阀:单瓣式单向阀、双瓣式单向阀、多瓣式单向阀。
4)按连接形式划分:螺纹连接单向阀、焊接单向阀、法兰单向阀。
单向阀常见故障和解决 *** :
1)介质回流
解决 *** :定期修理封闭的表面、清理单阀表面的内部的介质杂质。
2)打碎阀瓣
解决办法:使用韧性材料 *** 而成的阀瓣增加阀瓣的抗压力。
单向阀的安装:
保证介质流动方向与单向阀上所标记的方向同向;垂直管道上用升降式垂直瓣单向阀,水平管道则用水平单向阀;单向阀由于相对脆弱不能承受很大的重力压力,在安装大型单向阀时要注意使之单独的支撑重量。
单向阀一般用于水管中,控制着水流介质的流动,这样的说法可能更容易让大家接受。
方向控制阀的种类可以分为哪些?
方向控制阀的种类有单向阀、液控单向阀、换向阀、行程减速阀、充液阀、梭阀等。
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