管狀電加熱器元件/定制點擊次數:4647
發布時間:2019-04-14 16:43:47 |
簡介:
電熱管又名發熱管、加熱管,學名管狀電加熱器元件,是在金屬管中放入卷線狀的發熱絲(電阻絲),
[電熱管] 電熱管
并在其周圍及空隙部分填入有良好耐熱性、導熱性和絕緣性的絕緣粉末(MgO),發熱絲兩端部具有引出棒或引出線接出。它具有結構簡單,機械強度高、熱效率高、安全可靠、安裝簡便、使用壽命長等特點。廣泛適用于各種硝石槽、水槽、油槽、酸堿槽、易熔金屬熔化爐、空氣加熱爐、干燥爐、干燥箱、熱壓模等裝置。
電熱管是專門將電能轉化為熱能的電器元件,由于其價格便宜,使用方便,安裝方便,無污染,被廣泛使用在各種加熱場合。
分類:
1、按照出線方式分類,可以分為單頭電熱管和雙頭電熱管。
2、按照材質分類,可以分為不銹鋼電熱管、石英電熱管、鐵氟龍電熱管、鈦電熱管
3、按照外形分類,可以分為直型電熱管、U型電熱管、L型電熱管、W型電熱管、翅片電熱管、異型電熱管
4、按照用途分類,可以分為干燒電熱管和水燒電熱管
5、按照加熱方式分類,可以分為常規電阻加熱管和輻射電熱管
材料:
外管一般材料有In800,In840,304,316L,310S,鋁,銅,低碳鋼等。
氧化鎂粉是根據不同的使用要求選擇不同規格,有高溫粉,中溫粉,等。
電阻絲為發熱件,材料一般有兩種,Ni-Cr絲和Fe-Cr-Al.
引線端子材料一般有兩種:不銹鋼和易削鐵。
封口材料有:環氧,硅膠,玻璃等。
管(guan)狀電(dian)(dian)(dian)(dian)熱(re)元件(jian)(簡(jian)稱電(dian)(dian)(dian)(dian)熱(re)管(guan))是(shi)一種(zhong)(zhong)專門將電(dian)(dian)(dian)(dian)能(neng)轉化(hua)為(wei)熱(re)能(neng)的(de)(de)(de)電(dian)(dian)(dian)(dian)器元件(jian)。它(ta)是(shi)以金屬(shu)(shu)管(guan)為(wei)外殼(ke)(包括(kuo)不銹鋼、紫銅管(guan)),沿管(guan)內中心軸向均布螺旋電(dian)(dian)(dian)(dian)熱(re)合(he)金絲(鎳(nie)鉻(ge)、鐵鉻(ge)合(he)金)其空(kong)隙填充壓(ya)實(shi)具有良好絕緣導熱(re)性(xing)能(neng)的(de)(de)(de)氧化(hua)鎂(mei)砂,管(guan)口兩端(duan)用(yong)硅膠密封,這種(zhong)(zhong)金屬(shu)(shu)鎧裝電(dian)(dian)(dian)(dian)熱(re)元件(jian)可以加(jia)熱(re)空(kong)氣(qi),金屬(shu)(shu)模具和(he)各(ge)種(zhong)(zhong)液體。常見的(de)(de)(de)電(dian)(dian)(dian)(dian)熱(re)管(guan)有翅(chi)片(pian)電(dian)(dian)(dian)(dian)熱(re)管(guan)、翅(chi)片(pian)電(dian)(dian)(dian)(dian)熱(re)管(guan)、翅(chi)片(pian)電(dian)(dian)(dian)(dian)熱(re)管(guan)、鐵氟龍電(dian)(dian)(dian)(dian)熱(re)管(guan)、石英電(dian)(dian)(dian)(dian)熱(re)管(guan)等(deng)等(deng)。由于其價格便宜,使(shi)用(yong)方便,安(an)裝方便,無污染(ran),被(bei)廣泛使(shi)用(yong)在各(ge)種(zhong)(zhong)加(jia)熱(re)場合(he)。
功能特點:
體積小、功(gong)率(lv)大(da):加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)首要采(cai)用集束式管狀(zhuang)電(dian)(dian)熱(re)(re)(re)元件(jian)。熱(re)(re)(re)呼應快(kuai)、控溫(wen)(wen)(wen)精度(du)高(gao),綜合熱(re)(re)(re)效(xiao)率(lv)高(gao)。加(jia)(jia)(jia)熱(re)(re)(re)溫(wen)(wen)(wen)度(du)高(gao):加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)設計最(zui)高(gao)任務溫(wen)(wen)(wen)度(du)可(ke)達(da)850℃。介質出口溫(wen)(wen)(wen)度(du)平(ping)均(jun),控溫(wen)(wen)(wen)精度(du)高(gao)。使(shi)用局限廣、順應性強(qiang):該加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)可(ke)合用于防(fang)爆(bao)或通俗場所(suo),防(fang)爆(bao)品級(ji)可(ke)達(da)dⅡB級(ji)和C級(ji),耐(nai)壓可(ke)達(da)20MPa。壽命長(chang)、牢靠性高(gao):該加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)采(cai)用非(fei)凡(fan)電(dian)(dian)熱(re)(re)(re)資料制(zhi)(zhi)造,設計外表功(gong)率(lv)負荷低(di),并采(cai)用多重(zhong)維護,使(shi)電(dian)(dian)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)平(ping)安性和壽命大(da)大(da)添加(jia)(jia)(jia)。可(ke)全主(zhu)動(dong)化(hua)節制(zhi)(zhi):依據要求經(jing)過(guo)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)電(dian)(dian)路設計,可(ke)便利完成出口溫(wen)(wen)(wen)度(du)、流量(liang)、壓力等參數主(zhu)動(dong)節制(zhi)(zhi),并可(ke)與機算機聯網。節能結果(guo)明顯(xian),電(dian)(dian)能發生(sheng)的熱(re)(re)(re)量(liang)幾(ji)乎(hu)100%傳給加(jia)(jia)(jia)熱(re)(re)(re)介質。
常見種類:
翅片電(dian)熱管(guan)
翅(chi)片(pian)電(dian)熱(re)(re)管是一(yi)種消耗電(dian)能轉(zhuan)換為熱(re)(re)能,來(lai)對(dui)需加(jia)(jia)熱(re)(re)物料(liao)進行(xing)加(jia)(jia)熱(re)(re)。在(zai)工作(zuo)(zuo)中(zhong)低(di)溫(wen)流體介質通過管道(dao)在(zai)壓力作(zuo)(zuo)用下進入其(qi)輸入口(kou),沿(yan)著電(dian)加(jia)(jia)熱(re)(re)容器內(nei)部特定換熱(re)(re)流道(dao),運用流體熱(re)(re)力學原理(li)設計的(de)(de)(de)路徑,帶(dai)走電(dian)熱(re)(re)元(yuan)(yuan)件(jian)工作(zuo)(zuo)中(zhong)所產生的(de)(de)(de)高溫(wen)熱(re)(re)能量,使(shi)被加(jia)(jia)熱(re)(re)介質溫(wen)度升(sheng)高,翅(chi)片(pian)電(dian)熱(re)(re)管出口(kou)得到工藝(yi)要求(qiu)的(de)(de)(de)高溫(wen)介質。 翅(chi)片(pian)式管狀電(dian)加(jia)(jia)熱(re)(re)元(yuan)(yuan)件(jian),是在(zai)普(pu)通元(yuan)(yuan)件(jian)表面纏(chan)繞金屬散(san)熱(re)(re)片(pian),與普(pu)通元(yuan)(yuan)件(jian)相比(bi)散(san)熱(re)(re)面積擴大了2~3倍,即(ji)翅(chi)片(pian)元(yuan)(yuan)件(jian)所允許的(de)(de)(de)表面功(gong)(gong)率(lv)負(fu)荷是普(pu)通元(yuan)(yuan)件(jian)的(de)(de)(de)3~4 倍。由(you)于元(yuan)(yuan)件(jian)的(de)(de)(de)長(chang)度縮短,使(shi)得本身的(de)(de)(de)熱(re)(re)損失減小,在(zai)相同的(de)(de)(de)功(gong)(gong)率(lv)條件(jian)下,具有升(sheng)溫(wen)快、熱(re)(re)效率(lv)高、使(shi)用壽命長(chang)、加(jia)(jia)熱(re)(re)裝置體積小,成本低(di)等(deng)優(you)點。它可以安裝在(zai)吹風管道(dao)中(zhong)或其(qi)它靜(jing)止、流動空氣的(de)(de)(de)加(jia)(jia)熱(re)(re)場合。
法(fa)蘭電熱管
法蘭電(dian)熱(re)(re)(re)(re)(re)(re)管(也稱插入式(shi)電(dian)加(jia)熱(re)(re)(re)(re)(re)(re)器(qi)):是采用(yong)U型管狀電(dian)熱(re)(re)(re)(re)(re)(re)元件(jian),依據(ju)加(jia)熱(re)(re)(re)(re)(re)(re)不同介質(zhi)設計規范(fan),按照功(gong)率配(pei)置要(yao)求裝配(pei)在法蘭蓋上,插入需(xu)(xu)(xu)加(jia)熱(re)(re)(re)(re)(re)(re)物料(liao)中,發熱(re)(re)(re)(re)(re)(re)元件(jian)工作(zuo)時(shi)所發出的(de)大量熱(re)(re)(re)(re)(re)(re)量傳導給被(bei)加(jia)熱(re)(re)(re)(re)(re)(re)介質(zhi)使(shi)介質(zhi)溫度(du)(du)升高,達(da)到所需(xu)(xu)(xu)的(de)工藝要(yao)求。當(dang)介質(zhi)溫度(du)(du)達(da)到工藝要(yao)求的(de)設定(ding)值時(shi),控(kong)制(zhi)系統(tong)根據(ju)溫度(du)(du)傳感器(qi)信號,經PID運算后調節電(dian)加(jia)熱(re)(re)(re)(re)(re)(re)器(qi)輸出功(gong)率,對發熱(re)(re)(re)(re)(re)(re)元件(jian)的(de)電(dian)阻(zu)性負載(zai)實現溫度(du)(du)控(kong)制(zhi)。使(shi)介質(zhi)溫度(du)(du)均勻,達(da)到所需(xu)(xu)(xu)要(yao)求;當(dang)發熱(re)(re)(re)(re)(re)(re)元件(jian)超溫或(huo)低液位(wei)時(shi),發熱(re)(re)(re)(re)(re)(re)元件(jian)的(de)聯(lian)鎖保護裝置立即(ji)切(qie)斷(duan)加(jia)熱(re)(re)(re)(re)(re)(re)電(dian)源避(bi)免發熱(re)(re)(re)(re)(re)(re)元件(jian)燒(shao)壞,延(yan)長使(shi)用(yong)壽命。 法蘭電(dian)熱(re)(re)(re)(re)(re)(re)管主(zhu)要(yao)針對石(shi)油、化工、食(shi)品、機械(xie)等(deng)行業各類儲罐(guan)、容器(qi)、油箱內(nei)物料(liao)保溫和加(jia)熱(re)(re)(re)(re)(re)(re)。連接(jie)方式(shi)可采用(yong)法蘭式(shi)或(huo)螺(luo)紋端面密封(feng)。
普通型管狀電加(jia)熱器特點(dian):
1、本(ben)電加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)有(you)(you)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)芯子(zi)和(he)護套管構(gou)成(cheng),HRY1型(xing)(xing)護套式電加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)芯子(zi)用(yong)管狀電熱(re)(re)(re)(re)(re)(re)(re)元(yuan)件作為熱(re)(re)(re)(re)(re)(re)(re)源,護套管選用(yong)薄(bo)型(xing)(xing)不(bu)銹鋼制成(cheng),它散(san)熱(re)(re)(re)(re)(re)(re)(re)面積(ji)較大,傳熱(re)(re)(re)(re)(re)(re)(re)快,接線端設(she)備(bei)(bei)有(you)(you)些(xie)分為普通型(xing)(xing)(選用(yong)鐵制拉伸杯子(zi)型(xing)(xing)罩殼(ke))和(he)特(te)別(bie)型(xing)(xing)(選用(yong)螺栓式隔(ge)爆型(xing)(xing)設(she)備(bei)(bei)罩殼(ke)密(mi)封),特(te)別(bie)型(xing)(xing)具有(you)(you)達到防(fang)爆標志dIICT4.防(fang)護等級IP65系列(lie)規范的(de)(de)要求(qiu)。2、電加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)與油箱容器(qi)(qi)體選用(yong)法(fa)蘭連接,護套將加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)芯子(zi)與被加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)油液阻隔(ge),在(zai)修(xiu)理電加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)時,不(bu)需要放掉油箱中(zhong)的(de)(de)油液,僅需抽出加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)芯子(zi),替(ti)換一(yi)個新的(de)(de)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)芯子(zi)即可,修(xiu)理便(bian)利。3、在(zai)設(she)計(ji)時應思(si)考護套與熱(re)(re)(re)(re)(re)(re)(re)加(jia)(jia)(jia)油液接觸面積(ji),使油液不(bu)會因加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)溫(wen)度過高而局部碳化,該類型(xing)(xing)加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)只適(shi)用(yong)于導(dao)熱(re)(re)(re)(re)(re)(re)(re)油或受熱(re)(re)(re)(re)(re)(re)(re)作用(yong)較好的(de)(de)油液與介質內加(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)運(yun)用(yong)。