在制(zhi)砂(sha)機(ji)(ji)的(de)使用中,應指出制(zhi)砂(sha)機(ji)(ji)和新系統(tong)砂(sha)機(ji)(ji)需要獨立于人工應急(ji)開(kai)關的(de)邏輯(ji)系統(tong),而新的(de)系統(tong)砂(sha)機(ji)(ji)可直接啟動繼電器。
與繼(ji)電器連接人工急救開關。手(shou)動(dong)緊(jin)急開關和(he)繼(ji)電器連接的工作(zuo)原理總結如下:
(1)制砂(sha)機(ji)手(shou)動(dong)緊(jin)急(ji)開關采(cai)用雙閉接點(dian)。接觸是(shi)用來(lai)啟(qi)動(dong)繼(ji)(ji)電(dian)器(qi);另一(yi)個聯系人,接入系統的邏(luo)輯(ji)通(tong)道(dao),和一(yi)個用于“記錄和報告警(jing)察手(shou)冊急(ji)救開關”運動(dong),根據是(shi)通(tong)過邏(luo)輯(ji)驅動(dong)卡,通(tong)道(dao),斷開電(dian)源(yuan)線(xian)(xian)圈(quan)。該通(tong)道(dao)的主要目的是(shi)提供繼(ji)(ji)電(dian)器(qi)線(xian)(xian)圈(quan),并且該砂(sha)機(ji)也可以直接從(cong)外部電(dian)源(yuan)供電(dian)繼(ji)(ji)電(dian)器(qi)線(xian)(xian)圈(quan)。
(2)安切斷(duan)閥由繼電(dian)(dian)器(qi)(qi)(qi)控(kong)(kong)制(zhi)(斷(duan)開(kai)電(dian)(dian)源)和邏輯(ji)單元(yuan)控(kong)(kong)制(zhi):“燃燒(shao)器(qi)(qi)(qi)”通道輸出控(kong)(kong)制(zhi)。繼電(dian)(dian)器(qi)(qi)(qi)式干接點輸出。該方案(an)大的問題是繼電(dian)(dian)器(qi)(qi)(qi)的接觸(chu)能力,它(ta)足以提供所有聯鎖(suo)安關(guan)閉閥的電(dian)(dian)源。大容量接觸(chu)繼電(dian)(dian)器(qi)(qi)(qi)可能需要配置在大量的關(guan)閉閥中。
(3)考(kao)慮到制砂(sha)機控制信號應用中(zhong)的關鍵(jian)問題。
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