■熔鹽電加熱器：

　　熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)電(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)器是一種(zhong)電(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)設備,用于對流動的(de)(de)液態(tai)(tai)、氣(qi)態(tai)(tai)介(jie)(jie)質(zhi)的(de)(de)升溫、保溫、加(jia)熱(re)(re)(re)(re)(re)。熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)電(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)器利(li)用特殊(shu)管狀電(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件結(jie)合法(fa)蘭(lan)集束(shu)的(de)(de)形式與壓力容器組成(cheng)(cheng)一個供熱(re)(re)(re)(re)(re)整(zheng)(zheng)體,利(li)用加(jia)熱(re)(re)(re)(re)(re)二元(yuan)熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)或三元(yuan)熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)作為加(jia)熱(re)(re)(re)(re)(re)介(jie)(jie)質(zhi)。一般這種(zhong)加(jia)熱(re)(re)(re)(re)(re)方(fang)式與熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)罐組成(cheng)(cheng)一個整(zheng)(zheng)體,當常溫下的(de)(de)硝(xiao)鹽(yan)(yan)(yan)倒(dao)入熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)罐中以(yi)后，利(li)用熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)罐內的(de)(de)少量電(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件給其預熱(re)(re)(re)(re)(re)，使之變為液態(tai)(tai)，然后通過(guo)熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)泵(beng)抽取(qu)熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)往加(jia)熱(re)(re)(re)(re)(re)器內部流，進(jin)一步給熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)增(zeng)溫，到達熔(rong)(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)加(jia)熱(re)(re)(re)(re)(re)器出口處已經基本完成(cheng)(cheng)加(jia)熱(re)(re)(re)(re)(re)的(de)(de)目的(de)(de)，并與用戶的(de)(de)用熱(re)(re)(re)(re)(re)設備形成(cheng)(cheng)一個循環的(de)(de)整(zheng)(zheng)體，源源不斷(duan)的(de)(de)給其加(jia)熱(re)(re)(re)(re)(re)，從而滿足工藝的(de)(de)要求。

■熔(rong)鹽電加熱器(qi)應用范圍：

　　 熔鹽電加熱(re)器廣泛應用于(yu)儲能、儲熱(re)、火電調峰、化肥、三聚氫胺、氧化鋁(lv)等高溫加熱(re)生產(chan)工(gong)藝。

■熔鹽電加熱(re)器(qi)控(kong)制系統(tong)概述：

　　1、有常規(gui)的(de)電氣保護(hu)，如流量和短路保護(hu)等。

　　2、有一(yi)套獨立于溫度控(kong)制的(de)超溫報警系(xi)統，當電加熱器內部溫度超過計(ji)定值時，它(ta)將不可自動復位地關閉(bi)電加熱器，并輸(shu)出一(yi)個觸(chu)點信號。

　　3、有一套獨(du)立(li)的低液(ye)位(wei)報警，當液(ye)位(wei)低于要求值(zhi)時(shi)，它將自動關閉(bi)電(dian)加熱器，并輸出(chu)一個信(xin)號。

　　4、提供數個聯鎖接(jie)口，以便和(he)其它(ta)設備如泵、流(liu)量(liang)（壓力）開關(guan)等裝置聯鎖，確保(bao)加熱(re)器(qi)加熱(re)時有(you)一定流(liu)量(liang)的(de)介(jie)質在(zai)流(liu)動，保(bao)證系統的(de)安全。

　　5、控(kong)制可(ke)以向DCS系(xi)統(tong)提供(gong)加熱系(xi)統(tong)處(chu)于運行、停止、超(chao)溫(wen)報警(jing)、液位信(xin)號(hao)(hao)（低液位報警(jing)）、互鎖狀態、溫(wen)度信(xin)號(hao)(hao)（4~20mA）等信(xin)號(hao)(hao)，除溫(wen)度信(xin)號(hao)(hao)外，它們均(jun)為無源觸(chu)點；可(ke)以接(jie)受DCS發(fa)出的啟動、停止操(cao)作命(ming)令，要求的觸(chu)點容量亦為220V   1A。

　　6、具有(you)(you)PID溫(wen)度調(diao)節功能(neng)，加(jia)熱(re)(re)系(xi)統(tong)可(ke)以通過(guo)程序設置介質的升溫(wen)曲線，并能(neng)在流(liu)量不足或(huo)停止加(jia)熱(re)(re)后，根據工藝要求控(kong)制泵，本(ben)控(kong)制系(xi)統(tong)采用多(duo)級(ji)控(kong)制技術(shu)，即把加(jia)熱(re)(re)器(qi)分成幾組，其中一組也就是很大的一組可(ke)以無級(ji)調(diao)壓，根據出口溫(wen)度，經運算后，控(kong)制系(xi)統(tong)自(zi)動控(kong)制加(jia)熱(re)(re)器(qi)每組的通斷和另一組加(jia)熱(re)(re)器(qi)的輸出功率，達到無級(ji)調(diao)功。這樣，能(neng)很有(you)(you)效地達到提高控(kong)溫(wen)精度的目的。