平衡閥的原理是閥體內(nèi)的反調(diào)節(jié),當(dāng)入口處壓力加大時(shí),
自動(dòng)減小通徑,減少流量的變化,反之亦然。如果反接,
這套調(diào)節(jié)系統(tǒng)就不起作用。而且起調(diào)節(jié)作用的閥片,
是有方向性的,反向的壓力甚至可以減少甚至封閉流量。
既然安裝平衡閥是為了 的供暖,就不存在反裝的問題。
如果是反裝,就是人為的錯(cuò)誤,當(dāng)然就會(huì)糾正。
平衡閥屬于調(diào)節(jié)閥范疇,它的工作原理是通過改變閥芯與閥座的間隙(即開度),
改變流體流經(jīng)閥門的流通阻力,達(dá)到調(diào)節(jié)流量的目的。
平衡閥是一種特殊功能的閥門,有定量的測(cè)量功能和調(diào)節(jié)功能,
系統(tǒng)調(diào)試時(shí),調(diào)試人員通過與 智能儀表人機(jī)對(duì)話,對(duì)平衡閥進(jìn)行調(diào)整,
即可實(shí)現(xiàn)系統(tǒng)的水力平衡。它具有良好的流量調(diào)節(jié)特性,相對(duì)流量與相對(duì)開度呈線性關(guān)系。
有的閥門開度指示,小讀數(shù)為閥門全開度的1℅。有可靠的開度鎖定記憶裝置,
閥門開度變動(dòng)后可恢復(fù)至原鎖定位置。有截止功能,安裝了平衡閥就不必再安裝截止閥
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