壓力開關(guān)測壓點的選擇
來源:編輯YY 時間:2014-11-15 15:57 點擊:次
壓力開關(guān)測壓點的選擇與壓力開關(guān)的安裝位置有著密切的聯(lián)系,基本上測壓點的選擇即決定了它的安裝位置,所以謹慎選擇測壓點是實現(xiàn)壓力開關(guān)準確測量的第一步。
壓力開關(guān)測壓點要選在被測介質(zhì)可以直接流動下來的管道部分,而且不是處于管道拐彎、分叉或容易形成漩渦的其他地方,否則會造成被測介質(zhì)不流動,壓力開關(guān)便無法直接測量被測介質(zhì)。滿足了上一點之外,還應盡量滿足測壓點與流動方向是垂直的,如果測量的介質(zhì)為液體,那測壓點最好選在管道下方,防止管道內(nèi)部有氣體殘存,而如果測量介質(zhì)是氣體,那測壓點應處于管道上方,避免了管道內(nèi)殘留液體。
測壓點選擇完成之后,便可進行壓力開關(guān)的安裝了,應盡量安裝在易觀察和檢修并且盡量無任何干擾的地方。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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