■熔鹽電加熱器：

　　熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)電(dian)加(jia)(jia)熱(re)(re)(re)器(qi)是(shi)一(yi)(yi)(yi)種電(dian)加(jia)(jia)熱(re)(re)(re)設備,用(yong)(yong)(yong)于(yu)對(dui)流動的(de)(de)液態(tai)、氣態(tai)介(jie)(jie)質的(de)(de)升(sheng)溫(wen)(wen)、保溫(wen)(wen)、加(jia)(jia)熱(re)(re)(re)。熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)電(dian)加(jia)(jia)熱(re)(re)(re)器(qi)利用(yong)(yong)(yong)特殊(shu)管狀電(dian)熱(re)(re)(re)元件(jian)結合(he)法蘭集束的(de)(de)形(xing)式與(yu)壓(ya)力容器(qi)組(zu)(zu)成(cheng)(cheng)(cheng)一(yi)(yi)(yi)個(ge)供熱(re)(re)(re)整體,利用(yong)(yong)(yong)加(jia)(jia)熱(re)(re)(re)二元熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)或三(san)元熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)作為(wei)加(jia)(jia)熱(re)(re)(re)介(jie)(jie)質。一(yi)(yi)(yi)般(ban)這(zhe)種加(jia)(jia)熱(re)(re)(re)方(fang)式與(yu)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)罐(guan)(guan)組(zu)(zu)成(cheng)(cheng)(cheng)一(yi)(yi)(yi)個(ge)整體,當常溫(wen)(wen)下的(de)(de)硝鹽(yan)(yan)(yan)(yan)倒入熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)罐(guan)(guan)中以后(hou)，利用(yong)(yong)(yong)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)罐(guan)(guan)內(nei)的(de)(de)少(shao)量電(dian)熱(re)(re)(re)元件(jian)給(gei)其(qi)預(yu)熱(re)(re)(re)，使之變為(wei)液態(tai)，然后(hou)通過熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)泵抽取熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)往加(jia)(jia)熱(re)(re)(re)器(qi)內(nei)部流，進一(yi)(yi)(yi)步給(gei)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)增溫(wen)(wen)，到達熔(rong)(rong)(rong)鹽(yan)(yan)(yan)(yan)加(jia)(jia)熱(re)(re)(re)器(qi)出口(kou)處已經基(ji)本完(wan)成(cheng)(cheng)(cheng)加(jia)(jia)熱(re)(re)(re)的(de)(de)目的(de)(de)，并與(yu)用(yong)(yong)(yong)戶的(de)(de)用(yong)(yong)(yong)熱(re)(re)(re)設備形(xing)成(cheng)(cheng)(cheng)一(yi)(yi)(yi)個(ge)循環(huan)的(de)(de)整體，源源不(bu)斷的(de)(de)給(gei)其(qi)加(jia)(jia)熱(re)(re)(re)，從而滿足(zu)工藝的(de)(de)要求。

■熔鹽電加熱器應用范圍：

　　 熔鹽電(dian)加(jia)熱(re)器廣泛應用于儲能、儲熱(re)、火(huo)電(dian)調峰、化肥、三聚(ju)氫胺、氧化鋁(lv)等(deng)高溫(wen)加(jia)熱(re)生(sheng)產工藝。

■熔(rong)鹽(yan)電(dian)加(jia)熱器控制系統概述：

　　1、有常規的(de)電氣(qi)保(bao)(bao)護(hu)，如流(liu)量(liang)和短路(lu)保(bao)(bao)護(hu)等。

　　2、有一套獨立于溫(wen)度控制(zhi)的超溫(wen)報警(jing)系統，當(dang)電加(jia)熱器內(nei)部溫(wen)度超過計(ji)定值(zhi)時，它將不可自動復位地關閉電加(jia)熱器，并輸(shu)出一個觸(chu)點信號(hao)。

　　3、有(you)一套獨(du)立的低液位報(bao)警，當液位低于要求(qiu)值時，它(ta)將自動關閉電加熱器，并輸出一個信號。

　　4、提供數個聯(lian)(lian)鎖接(jie)口，以(yi)便和其它設備如泵、流(liu)量(liang)（壓(ya)力）開關等裝置聯(lian)(lian)鎖，確(que)保(bao)加(jia)熱器加(jia)熱時有一定流(liu)量(liang)的介(jie)質在(zai)流(liu)動，保(bao)證系統的安全。

　　5、控制可以(yi)向(xiang)DCS系(xi)統(tong)(tong)提(ti)供加(jia)熱(re)系(xi)統(tong)(tong)處(chu)于運(yun)行、停止、超溫報警(jing)、液位信號（低液位報警(jing)）、互鎖狀態、溫度(du)信號（4~20mA）等信號，除(chu)溫度(du)信號外，它們均為無源(yuan)觸點；可以(yi)接受DCS發出的啟(qi)動、停止操作命令(ling)，要求的觸點容(rong)量亦(yi)為220V   1A。

　　6、具有PID溫度(du)調(diao)(diao)節功(gong)能，加熱系(xi)(xi)(xi)統可以(yi)通過程序設置介質的(de)升溫曲線(xian)，并能在流量不足或停(ting)止加熱后(hou)，根(gen)據(ju)工(gong)藝要(yao)求控(kong)(kong)(kong)制(zhi)泵，本(ben)控(kong)(kong)(kong)制(zhi)系(xi)(xi)(xi)統采(cai)用(yong)多級(ji)控(kong)(kong)(kong)制(zhi)技術(shu)，即(ji)把加熱器(qi)分成(cheng)幾組，其(qi)中一組也就(jiu)是很大的(de)一組可以(yi)無(wu)級(ji)調(diao)(diao)壓，根(gen)據(ju)出口溫度(du)，經運算后(hou)，控(kong)(kong)(kong)制(zhi)系(xi)(xi)(xi)統自動控(kong)(kong)(kong)制(zhi)加熱器(qi)每組的(de)通斷和(he)另一組加熱器(qi)的(de)輸出功(gong)率，達(da)到(dao)無(wu)級(ji)調(diao)(diao)功(gong)。這樣(yang)，能很有效地(di)達(da)到(dao)提高控(kong)(kong)(kong)溫精度(du)的(de)目的(de)。