壓力開關(guān)與壓力繼電器的區(qū)別
來源:編輯YY 時(shí)間:2014-07-01 14:21 點(diǎn)擊:次
由于壓力開關(guān)的需求不斷呈上升趨勢(shì),造成了一些客戶對(duì)壓力開關(guān)與壓力繼電器的混淆,今天一起跟著天利小編簡(jiǎn)單認(rèn)識(shí)二者的區(qū)別與聯(lián)系。
壓力開關(guān)的主要組成部分是彈簧管、波紋管和微動(dòng)開關(guān)等,它的工作原理是在壓力達(dá)到預(yù)設(shè)值時(shí),彈性元件的自由端產(chǎn)生位移,直接或經(jīng)過比較后推動(dòng)開關(guān)元件,改變開關(guān)元件的通斷狀態(tài),達(dá)到控制被測(cè)壓力的目的。
壓力繼電器是利用液體的壓力來控制電氣觸點(diǎn)的液電開關(guān)信號(hào)轉(zhuǎn)換元件,主要由壓力位移裝換部件、微動(dòng)開關(guān)兩部分組成,它的原理是在系統(tǒng)壓力達(dá)到設(shè)定值時(shí),壓力繼電器會(huì)發(fā)出信號(hào)來控制電氣設(shè)備的動(dòng)作。
壓力開關(guān)與壓力繼電器的原理類似,是都需要在設(shè)定指定壓力的情況下,實(shí)現(xiàn)壓力控制。但是壓力繼電器可以提供較多的輸出節(jié)點(diǎn)和不同的節(jié)點(diǎn)類型。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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