羅斯蒙特差壓(ya)變(bian)送(song)器是電(dian)力(li)系統(tong)的(de)重要(yao)組成部(bu)分(fen),它(ta)是改(gai)變(bian)電(dian)壓的元(yuan)件(jian),不(bu)僅(jin)可(ke)以(yi)靈(ling)活地(di)調配電(dian)能(neng),滿足人們生(sheng)活中(zhong)的(de)用(yong)電需(xu)求(qiu),而且(qie)可(ke)以(yi)變(bian)換電(dian)流和阻抗(kang),保(bao)證電路系統(tong)的(de)安全(quan)運(yun)行。隨(sui)著我(wo)國(guo)電力(li)行業(ye)的(de)不斷(duan)發展(zhan),被(bei)廣(guang)泛(fan)應(ying)用(yong)電力(li)系統(tong)中(zhong)。具(ju)有智能功(gong)能(neng),例如無(wu)線(xian)通信,並(bing)且(qie)是(shi)板載(zai)微控(kong)制器。它用(yong)於(yu)模(mo)數轉換,數(shu)字處理,決策和雙(shuang)向(xiang)通信。與傳(chuan)統(tong)變(bian)送(song)器相(xiang)比,具(ju)有各種(zhong)優(you)勢(shi),例如尺(chi)寸更小,功(gong)耗(hao)非常小以(yi)及(ji)性能(neng)更(geng)高。
它由壹個(ge)轉換組件,信號調理電(dian)子器件和(he)壹個(ge)在(zai)單個(ge)封裝(zhuang)中(zhong)支(zhi)持(chi)某(mou)些(xie)智能(neng)的處理器組成。這(zhe)種(zhong)集(ji)成(cheng)的(de)設(she)備在(zai)壹個(ge)Si晶(jing)片上共(gong)同(tong)具(ju)有電子器件和(he)轉換元(yuan)件(jian),被(bei)稱(cheng)為(wei)“片上系統(tong)”。采(cai)用(yong)微機(ji)電(dian)系統(tong),該(gai)系統(tong)允許(xu)羅(luo)斯蒙特差壓(ya)變(bian)送(song)器在(zai)眨眼(yan)之間就能保(bao)持(chi)大(da)量(liang)數據,從而幫(bang)助變(bian)送(song)器以(yi)智(zhi)能(neng)方(fang)式工(gong)作(zuo)。收(shou)集(ji)的(de)典(dian)型(xing)數(shu)據(ju)由微處理器處理,微處理器通過高級計算(suan)來擦(ca)除或存(cun)儲數據。其主(zhu)要(yao)優(you)點包括(kuo):非常小化能量和材(cai)料,提高可(ke)重復性(xing),提高準確性以(yi)及(ji)提高靈敏度(du)和(he)選(xuan)擇(ze)性(xing)。
羅斯(si)蒙特差壓(ya)變(bian)送(song)器常見(jian)的(de)故障問(wen)題有哪些(xie)?解(jie)決方法(fa)又(you)是什(shen)麽?
1、羅(luo)斯(si)蒙特差壓(ya)變(bian)送(song)器顯示(shi)壓力(li)值(zhi)偏(pian)高故障
在(zai)生(sheng)產(chan)過程中(zhong)工(gong)藝(yi)實施人員發現(xian)集中(zhong)控(kong)制系統(tong)中(zhong)的(de)壓力(li)顯(xian)示(shi)值(zhi)比(bi)現(xian)場(chang)顯(xian)示(shi)偏(pian)高,儀表維(wei)護(hu)人員到現(xian)場(chang)檢查(zha),發(fa)現(xian)差壓(ya)變(bian)送(song)器液晶(jing)顯示(shi)值(zhi)與(yu)壓力(li)表(biao)顯(xian)示(shi)值(zhi)壹(yi)致,現(xian)場(chang)測(ce)試(shi)DCS的(de)顯(xian)示(shi)值(zhi),發(fa)現(xian)該顯(xian)示(shi)值(zhi)也(ye)為(wei)正常值(zhi),通(tong)過儀器發現(xian)變(bian)送(song)器輸(shu)送(song)的電(dian)流值(zhi)與(yu)實際(ji)輸(shu)出的(de)電(dian)流較(jiao)低,判斷故障發(fa)生(sheng)點為(wei)電路(lu)板故障。在(zai)更換電(dian)路(lu)板後,集(ji)中(zhong)控(kong)制系統(tong)的(de)顯(xian)示(shi)值(zhi)與(yu)現(xian)場(chang)的(de)顯示(shi)值(zhi)壹(yi)致。
2、壓力(li)值(zhi)偏(pian)低故障
集(ji)中(zhong)控(kong)制系統(tong)工(gong)作(zuo)人員發現(xian)壓力(li)變(bian)送(song)器顯示(shi)值(zhi)偏(pian)低,到現(xian)場(chang)發(fa)現(xian)壓力(li)變(bian)送(song)器顯示(shi)與集(ji)中(zhong)控(kong)制系統(tong)的(de)顯(xian)示(shi)值(zhi)壹(yi)致,故障點(dian)可(ke)能是現(xian)場(chang)儀(yi)表出現(xian)問(wen)題,出現(xian)上面的(de)情況的(de)原因(yin)有引壓管線(xian)裏含有液體,或者(zhe)是變(bian)送(song)器的刻度(du)零(ling)點(dian)發(fa)生(sheng)偏(pian)移。在(zai)現(xian)場(chang)對(dui)引壓(ya)線(xian)進(jin)行排液,發現(xian)有少量液體排出,液(ye)體排出後(hou),現(xian)場(chang)與(yu)集中(zhong)控(kong)制系統(tong)顯(xian)示(shi)基(ji)本壹(yi)致。
3、無壓力(li)值(zhi)顯(xian)示(shi)故障
集(ji)中(zhong)控(kong)制系統(tong)工(gong)作(zuo)人員發現(xian)某(mou)壓力(li)值(zhi)無(wu)顯示(shi),使用(yong)人員檢查(zha)壓(ya)力(li)控(kong)制回路傳輸(shu)的(de)信號值(zhi)較(jiao)低,測(ce)量(liang)回路出現(xian)故障,現(xian)場(chang)檢査(zha)集中(zhong)控(kong)制系統(tong)的(de)接線(xian)端,發(fa)現(xian)端子排壹個(ge)保險(xian)端子燈(deng)報(bao)警顯(xian)示(shi),更換保(bao)險(xian)後,壓(ya)力(li)顯(xian)示(shi)正常。對(dui)現(xian)場(chang)接線(xian)進(jin)行接地(di)測(ce)量(liang),發(fa)現(xian)負(fu)端接線(xian)存在(zai)接地(di)現(xian)象,檢査(zha)分(fen)支(zhi)電纜(lan)線(xian)路,發(fa)現(xian)接線(xian)箱(xiang)接口線(xian)路存(cun)在(zai)裂(lie)口(kou),對(dui)線(xian)路進(jin)行更(geng)換處理,壓力(li)值(zhi)能(neng)穩定(ding)顯(xian)示(shi)。