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側裝式磁翻板液位計的在線校準說明
側(ce)(ce)裝(zhuang)式磁翻板(ban)液(ye)(ye)(ye)位(wei)(wei)計(ji)有多種材質可(ke)選,磁翻板(ban)液(ye)(ye)(ye)位(wei)(wei)計(ji)的導(dao)管部分都是由不銹(xiu)鋼制(zhi)成,可(ke)滿足(zu)食(shi)用(yong)級別(bie)的高要求(qiu)。該液(ye)(ye)(ye)位(wei)(wei)計(ji)純機械原(yuan)理,安(an)全(quan)、穩定、可(ke)靠(kao)、顯示(shi)直觀。可(ke)為(wei)側(ce)(ce)裝(zhuang)式磁翻板(ban)液(ye)(ye)(ye)位(wei)(wei)計(ji)增加遠(yuan)傳(chuan)裝(zhuang)置,4-20mA信(xin)號(hao)(hao)輸出,將信(xin)號(hao)(hao)傳(chuan)輸至(zhi)控制(zhi)室(shi)。增加上下限報警開(kai)關并連接泵閥,使液(ye)(ye)(ye)位(wei)(wei)計(ji)實現對容器內液(ye)(ye)(ye)位(wei)(wei)的高低位(wei)(wei)控制(zhi)。對于一(yi)些(xie)大(da)型食(shi)用(yong)油儲(chu)罐也(ye)可(ke)使用(yong)此液(ye)(ye)(ye)位(wei)(wei)計(ji),雖然(ran)造(zao)價成本(ben)會高一(yi)點(dian),但相對雷達液(ye)(ye)(ye)位(wei)(wei)計(ji)或超聲波(bo)液(ye)(ye)(ye)位(wei)(wei)計(ji)來說(shuo),側(ce)(ce)裝(zhuang)式磁翻板(ban)液(ye)(ye)(ye)位(wei)(wei)計(ji)更準(zhun)確(que)可(ke)靠(kao)。目(mu)前(qian)國(guo)內的雷達液(ye)(ye)(ye)位(wei)(wei)計(ji)、超聲波(bo)液(ye)(ye)(ye)位(wei)(wei)計(ji)制(zhi)造(zao)工藝雖然(ran)很成熟,但誤報...
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浮球液位開關主要原理及使用注意事項
浮(fu)球(qiu)液位(wei)(wei)(wei)開(kai)(kai)關主要是通(tong)(tong)過使用磁(ci)力運作,無機(ji)械(xie)連接(jie)件,浮(fu)子隨(sui)被(bei)測液位(wei)(wei)(wei)上下(xia)移動(dong)時(shi),觸動(dong)磁(ci)簧(huang)開(kai)(kai)關而檢出(chu)液位(wei)(wei)(wei)位(wei)(wei)(wei)置(zhi),由磁(ci)簧(huang)開(kai)(kai)關和浮(fu)子組成,浮(fu)子內(nei)有(you)磁(ci)性材料(liao)充斥。利用浮(fu)球(qiu)內(nei)的(de)磁(ci)鐵去吸引磁(ci)簧(huang)開(kai)(kai)關的(de)接(jie)點(dian),產(chan)生開(kai)(kai)與關的(de)動(dong)作。被(bei)測液位(wei)(wei)(wei)應無鐵屑(xie),否則鐵屑(xie)粘(zhan)在(zai)浮(fu)球(qiu)上面浮(fu)球(qiu)浮(fu)不起來會(hui)影(ying)響浮(fu)球(qiu)隊(dui)開(kai)(kai)關的(de)動(dong)作。比一(yi)般(ban)機(ji)械(xie)開(kai)(kai)關速(su)度快、工(gong)作壽命長(chang),同時(shi)還(huan)具有(you)有(you)抗負載沖擊(ji)能力強(qiang)的(de)特點(dian),可以(yi)實現多點(dian)控制。通(tong)(tong)常情況下(xia),浮(fu)球(qiu)液位(wei)(wei)(wei)開(kai)(kai)關是在(zai)密閉的(de)金(jin)屬或塑膠管(guan)內(nei),可以(yi)設置(zhi)一(yi)點(dian)或多點(dian)的(de)磁(ci)簧(huang)開(kai)(kai)關,將管(guan)子貫串一(yi)個或多個,中空而內(nei)部裝(zhuang)...
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玻璃管液位計實際生產應用時暴露的問題簡析
玻(bo)璃(li)(li)管(guan)液(ye)(ye)位(wei)計(ji)(ji)是一(yi)種直讀式(shi)液(ye)(ye)位(wei)測量儀(yi)表,適用(yong)于(yu)工業生產過(guo)程中一(yi)般貯液(ye)(ye)設備中的(de)液(ye)(ye)體位(wei)置的(de)現場檢測,其結構(gou)簡單,測量準確,是傳統的(de)現場液(ye)(ye)位(wei)測量工具。該液(ye)(ye)位(wei)計(ji)(ji)兩端(duan)各(ge)裝(zhuang)有(you)(you)一(yi)個針形閥,當(dang)玻(bo)璃(li)(li)管(guan)發生意外事故而(er)破(po)碎時,針形閥在容(rong)(rong)器(qi)壓力作用(yong)下自動(dong)關閉,以防(fang)容(rong)(rong)器(qi)內介質繼(ji)續外流。玻(bo)璃(li)(li)管(guan)液(ye)(ye)位(wei)計(ji)(ji)在上(shang)下閥上(shang)都裝(zhuang)有(you)(you)螺(luo)紋(wen)接(jie)頭,通過(guo)法(fa)蘭與容(rong)(rong)器(qi)連接(jie)構(gou)成連通器(qi),透過(guo)玻(bo)璃(li)(li)板可直接(jie)讀得容(rong)(rong)器(qi)內液(ye)(ye)位(wei)的(de)高度(du)。液(ye)(ye)位(wei)計(ji)(ji)在上(shang)下閥內都裝(zhuang)有(you)(you)鋼球(qiu),當(dang)玻(bo)璃(li)(li)板因意外事故破(po)壞時,鋼球(qiu)在容(rong)(rong)器(qi)內壓力作用(yong)下阻塞通道,這樣容(rong)(rong)器(qi)便(bian)自動(dong)密(mi)封,可以防(fang)止(zhi)容(rong)(rong)...
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玻璃管液位計對比玻璃板液位計你知道多少?
玻(bo)璃(li)(li)管(guan)(guan)液(ye)位(wei)計(ji)根(gen)據(ju)使(shi)用(yong)(yong)要(yao)求可有(you)各(ge)種形式,要(yao)求不(bu)高的(de)可因陋(lou)就(jiu)簡(jian)自制,精密(mi)容(rong)(rong)器(qi)(qi)(qi)(qi)的(de)液(ye)位(wei)可用(yong)(yong)較(jiao)(jiao)(jiao)平直光滑(hua)和粗的(de)玻(bo)璃(li)(li)管(guan)(guan)(使(shi)毛(mao)細現象(xiang)減小)加上(shang)較(jiao)(jiao)(jiao)精密(mi)的(de)游標(biao)刻度尺來(lai)讀數。在(zai)與(yu)(yu)容(rong)(rong)器(qi)(qi)(qi)(qi)連通的(de)玻(bo)璃(li)(li)管(guan)(guan)中(zhong)安有(you)浮(fu)(fu)動磁鋼(gang)(又稱浮(fu)(fu)子(zi)),在(zai)玻(bo)璃(li)(li)管(guan)(guan)外(wai)面(mian)上(shang)下(xia)端(duan)各(ge)裝一(yi)干(gan)簧繼電器(qi)(qi)(qi)(qi)。當(dang)浮(fu)(fu)子(zi)接(jie)近干(gan)簧繼電器(qi)(qi)(qi)(qi)時,繼電器(qi)(qi)(qi)(qi)產生開關動作(zuo),就(jiu)可以對(dui)液(ye)位(wei)的(de)上(shang)下(xia)限進(jin)行控制或報警。玻(bo)璃(li)(li)管(guan)(guan)液(ye)位(wei)計(ji)適用(yong)(yong)于較(jiao)(jiao)(jiao)低壓力(li)的(de)、敞口或密(mi)封容(rong)(rong)器(qi)(qi)(qi)(qi)液(ye)位(wei)的(de)直接(jie)指示。玻(bo)璃(li)(li)板液(ye)位(wei)計(ji)的(de)結(jie)構(gou)為在(zai)厚實的(de)鋼(gang)化玻(bo)璃(li)(li)板上(shang)開以細槽(cao),下(xia)端(duan)用(yong)(yong)金屬管(guan)(guan)與(yu)(yu)容(rong)(rong)器(qi)(qi)(qi)(qi)被測(ce)液(ye)體相連,上(shang)端(duan)用(yong)(yong)金屬管(guan)(guan)與(yu)(yu)容(rong)(rong)器(qi)(qi)(qi)(qi)液(ye)面(mian)...
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衛生型壓力變送器有關量程的修改說明
衛(wei)生型(xing)壓(ya)(ya)(ya)力變(bian)送(song)器是一(yi)種(zhong)常用的壓(ya)(ya)(ya)力變(bian)送(song)器,數(shu)字化智(zhi)能芯片,全溫度線(xian)性(xing)溫度補(bu)償(chang);全不銹鋼激光焊接結構(gou);多(duo)種(zhong)過(guo)程連接方(fang)式;齊平膜設計(ji)適合多(duo)種(zhong)粘(zhan)稠(chou)介(jie)質(zhi)壓(ya)(ya)(ya)力測量;易拆卸易清洗無菌設計(ji);符合3A標準(zhun)。廣泛應用于食品、醫藥(yao)、釀造、乳業、航天航空領域(yu)以及(ji)水(shui)處(chu)理工程、環保凈化還有石化、煤炭、造紙等粘(zhan)稠(chou)介(jie)質(zhi)領域(yu)。衛(wei)生型(xing)壓(ya)(ya)(ya)力變(bian)送(song)器的量程修改說明:1.縮小量程復驗零位,當輸入為”0”壓(ya)(ya)(ya)力時,輸出應為4mA,若有偏差,可微(wei)調調零電位器;仍(reng)然輸入為”0”壓(ya)(ya)(ya)力,按順時針方(fang)程調節量程電位器,使其在”0”壓(ya)(ya)(ya)力...
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高靜壓差壓表安裝的方式
1.正常(chang)使用(yong)(yong)高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)必須配(pei)三(san)(san)閥(fa)組(zu)或五閥(fa)組(zu)以保護差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)正常(chang)工(gong)作(zuo)。2.高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)和三(san)(san)閥(fa)組(zu)用(yong)(yong)兩個索(suo)母緊固(gu)。索(suo)母和差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)接頭(tou)密封面應加四氟墊片(pian)。3.裝有(you)三(san)(san)閥(fa)組(zu)的高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)在(zai)使用(yong)(yong)前必須把(ba)中間閥(fa)門(men)(men)打開,并把(ba)正壓(ya)(ya)(ya)(ya)(ya)閥(fa)門(men)(men)和負(fu)壓(ya)(ya)(ya)(ya)(ya)閥(fa)門(men)(men)打開。(當P+和P-任意的壓(ya)(ya)(ya)(ya)(ya)力(li)先(xian)進(jin)入時,中間閥(fa)門(men)(men)能起到(dao)(dao)平衡高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)兩腔體內的壓(ya)(ya)(ya)(ya)(ya)力(li)的作(zuo)用(yong)(yong),以免打壞高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)。)4.當P+、P-的壓(ya)(ya)(ya)(ya)(ya)力(li)正常(chang)進(jin)入三(san)(san)閥(fa)組(zu)后,再關閉中間閥(fa)門(men)(men)使高(gao)(gao)靜壓(ya)(ya)(ya)(ya)(ya)差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)正常(chang)工(gong)作(zuo)。如差(cha)(cha)壓(ya)(ya)(ya)(ya)(ya)表(biao)(biao)表(biao)(biao)針有(you)輕(qing)微離零屬正常(chang),只需(xu)把(ba)表(biao)(biao)針調到(dao)(dao)零位即可(注意必須用(yong)(yong)肥...
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防爆熱電偶的應用
工業用(yong)(yong)(yong)隔爆熱(re)電(dian)偶是(shi)一(yi)種溫(wen)度(du)(du)(du)(du)傳(chuan)感器(qi),在(zai)化學(xue)(xue)工業自控系統中應用(yong)(yong)(yong)極廣,通(tong)(tong)過(guo)溫(wen)度(du)(du)(du)(du)傳(chuan)感器(qi),可將控制(zhi)對(dui)象的(de)溫(wen)度(du)(du)(du)(du)參數變(bian)成電(dian)信號,傳(chuan)遞(di)(di)給(gei)(gei)顯示、記(ji)錄(lu)和(he)調節(jie)儀,對(dui)系統施行檢測、調節(jie)和(he)控制(zhi)。在(zai)化工廠(chang),生產現場常伴(ban)有各種易燃、易爆等化學(xue)(xue)氣(qi)體、蒸汽,如(ru)果使(shi)用(yong)(yong)(yong)普通(tong)(tong)的(de)熱(re)電(dian)偶非常不安(an)全,極易引起環境氣(qi)體爆炸。因此,在(zai)這(zhe)些場合必(bi)須(xu)使(shi)用(yong)(yong)(yong)隔爆熱(re)電(dian)偶作溫(wen)度(du)(du)(du)(du)傳(chuan)感器(qi)。隔爆熱(re)電(dian)偶是(shi)一(yi)種溫(wen)度(du)(du)(du)(du)傳(chuan)感器(qi),在(zai)化學(xue)(xue)工業自控系統中應用(yong)(yong)(yong)極廣,通(tong)(tong)過(guo)溫(wen)度(du)(du)(du)(du)傳(chuan)感器(qi),可將控制(zhi)對(dui)象的(de)溫(wen)度(du)(du)(du)(du)參數變(bian)成電(dian)信號,傳(chuan)遞(di)(di)給(gei)(gei)顯示、記(ji)錄(lu)和(he)調節(jie)儀,對(dui)系統施行檢測、調節(jie)...
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玻璃管液位計中的液位監控說明
傳統(tong)液(ye)(ye)位(wei)計種(zhong)類(lei)很多,有玻(bo)璃(li)(li)(li)管(guan)液(ye)(ye)位(wei)計、玻(bo)璃(li)(li)(li)板液(ye)(ye)位(wei)計等(deng)等(deng)。其原理很簡單,就是(shi)(shi)在(zai)水箱(xiang)外(wai)通過(guo)拷克(ke)閥門將水引(yin)到一(yi)(yi)個玻(bo)璃(li)(li)(li)管(guan)內。因(yin)為玻(bo)璃(li)(li)(li)管(guan)是(shi)(shi)透明(ming)的,所(suo)以可以通過(guo)玻(bo)璃(li)(li)(li)管(guan)看(kan)見液(ye)(ye)位(wei)高低。再好一(yi)(yi)點的就是(shi)(shi)在(zai)外(wai)面加一(yi)(yi)襯(chen)托、標尺等(deng),讓人們(men)能容易(yi)看(kan)到液(ye)(ye)位(wei)狀(zhuang)態。但這(zhe)種(zhong)液(ye)(ye)位(wei)計只能現(xian)場顯示,無(wu)法將液(ye)(ye)位(wei)信(xin)號(hao)轉(zhuan)換為電信(xin)號(hao),實現(xian)遠距(ju)離(li)監(jian)控。所(suo)以傳統(tong)玻(bo)璃(li)(li)(li)管(guan)液(ye)(ye)位(wei)計用起來很方便,但如何將其中的液(ye)(ye)位(wei)信(xin)號(hao)轉(zhuan)換為電信(xin)號(hao)實現(xian)遠距(ju)離(li)自動控制呢(ni)?光(guang)電監(jian)控探頭夾就是(shi)(shi)在(zai)玻(bo)璃(li)(li)(li)管(guan)外(wai)加裝一(yi)(yi)紅外(wai)發(fa)光(guang)管(guan),發(fa)射紅外(wai)線。另一(yi)(yi)方安裝一(yi)(yi)紅外(wai)接收管(guan),接收紅外(wai)...