■熔鹽電加熱器：

　　熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)電(dian)(dian)加(jia)(jia)熱(re)器是一(yi)(yi)種電(dian)(dian)加(jia)(jia)熱(re)設備(bei)(bei),用(yong)(yong)于對流動的(de)(de)液(ye)態、氣態介(jie)質(zhi)的(de)(de)升溫、保溫、加(jia)(jia)熱(re)。熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)電(dian)(dian)加(jia)(jia)熱(re)器利用(yong)(yong)特殊管(guan)狀電(dian)(dian)熱(re)元件結合法(fa)蘭集束的(de)(de)形式(shi)與壓(ya)力容器組成(cheng)一(yi)(yi)個(ge)供熱(re)整體,利用(yong)(yong)加(jia)(jia)熱(re)二(er)元熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)或三元熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)作為(wei)加(jia)(jia)熱(re)介(jie)質(zhi)。一(yi)(yi)般這種加(jia)(jia)熱(re)方式(shi)與熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)罐(guan)組成(cheng)一(yi)(yi)個(ge)整體,當常溫下的(de)(de)硝鹽(yan)(yan)(yan)(yan)(yan)(yan)倒入熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)罐(guan)中以后，利用(yong)(yong)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)罐(guan)內的(de)(de)少量(liang)電(dian)(dian)熱(re)元件給(gei)其預熱(re)，使之變為(wei)液(ye)態，然后通(tong)過熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)泵抽取熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)往(wang)加(jia)(jia)熱(re)器內部流，進(jin)一(yi)(yi)步給(gei)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)增溫，到(dao)達(da)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)(yan)(yan)加(jia)(jia)熱(re)器出口處已經基本(ben)完成(cheng)加(jia)(jia)熱(re)的(de)(de)目的(de)(de)，并與用(yong)(yong)戶的(de)(de)用(yong)(yong)熱(re)設備(bei)(bei)形成(cheng)一(yi)(yi)個(ge)循環的(de)(de)整體，源(yuan)源(yuan)不斷的(de)(de)給(gei)其加(jia)(jia)熱(re)，從而滿足工藝(yi)的(de)(de)要(yao)求。

■熔鹽電(dian)加熱器應用范圍：

　　 熔鹽電加熱(re)器廣泛應(ying)用于(yu)儲能、儲熱(re)、火電調峰(feng)、化(hua)肥、三(san)聚氫胺、氧(yang)化(hua)鋁等高溫加熱(re)生(sheng)產工藝。

■熔鹽電加(jia)熱器控制(zhi)系統概述(shu)：

　　1、有(you)常規(gui)的電氣保(bao)護，如流量和(he)短路保(bao)護等。

　　2、有一(yi)套獨立于(yu)溫(wen)度(du)控制的超溫(wen)報警系(xi)統，當電加(jia)熱器內部溫(wen)度(du)超過計(ji)定值(zhi)時，它將不可(ke)自動(dong)復位地關閉電加(jia)熱器，并輸出一(yi)個觸(chu)點信(xin)號。

　　3、有一(yi)套(tao)獨立的低液位報警，當液位低于(yu)要求值時，它將自動關閉電加(jia)熱器(qi)，并(bing)輸出一(yi)個信號。

　　4、提供數個聯鎖接口，以便(bian)和其它設備如泵、流量（壓(ya)力）開關等裝置聯鎖，確保(bao)加熱(re)器(qi)加熱(re)時有(you)一定流量的介質在流動，保(bao)證系統的安全。

　　5、控(kong)制(zhi)可以向DCS系(xi)統提供加熱系(xi)統處于運行、停止、超溫報警、液(ye)位信(xin)(xin)號（低(di)液(ye)位報警）、互鎖狀(zhuang)態、溫度(du)信(xin)(xin)號（4~20mA）等信(xin)(xin)號，除溫度(du)信(xin)(xin)號外，它們(men)均(jun)為無(wu)源觸點；可以接(jie)受DCS發出(chu)的啟(qi)動、停止操作命令，要求的觸點容量亦(yi)為220V   1A。

　　6、具有(you)PID溫(wen)度調節(jie)功(gong)(gong)能(neng)(neng)，加(jia)(jia)熱系(xi)統(tong)可(ke)以(yi)通過程(cheng)序設置介質的(de)升(sheng)溫(wen)曲線，并能(neng)(neng)在流量不足或停止加(jia)(jia)熱后(hou)，根據工藝要(yao)求(qiu)控(kong)(kong)制(zhi)泵(beng)，本(ben)控(kong)(kong)制(zhi)系(xi)統(tong)采用多級控(kong)(kong)制(zhi)技術(shu)，即把加(jia)(jia)熱器(qi)分(fen)成幾組，其中一組也就是很大的(de)一組可(ke)以(yi)無級調壓，根據出(chu)口溫(wen)度，經運算后(hou)，控(kong)(kong)制(zhi)系(xi)統(tong)自動控(kong)(kong)制(zhi)加(jia)(jia)熱器(qi)每組的(de)通斷和另一組加(jia)(jia)熱器(qi)的(de)輸(shu)出(chu)功(gong)(gong)率，達到無級調功(gong)(gong)。這(zhe)樣，能(neng)(neng)很有(you)效(xiao)地達到提高控(kong)(kong)溫(wen)精(jing)度的(de)目的(de)。