NEWS
①.電(dian)(dian)(dian)伴熱系(xi)統安裝(zhuang)(zhuang)前，被伴熱管道必須全部(bu)施工完畢，并經水壓試驗、氣(qi)密試驗檢(jian)查合格(ge)。 ②.安裝(zhuang)(zhuang)時(shi)，應先按照電(dian)(dian)(dian)伴熱系(xi)統圖逐一核對管道編號(hao)、管道規格(ge)、工藝條件、電(dian)(dian)(dian)伴熱參數、規格(ge)型號(hao)、電(dian)(dian)(dian)氣(qi)設備和(he)控制設備規格(ge)型號(hao)等確認無誤后(hou)才能(neng)安裝(zhuang)(zhuang)。 ③.電(dian)(dian)(dian)伴熱...
選(xuan)(xuan)用(yong)電伴(ban)(ban)熱(re)產(chan)(chan)品，主要依(yi)據工藝條件、環境情況(kuang)、管(guan)道(dao)(dao)設計、管(guan)道(dao)(dao)所在區域(yu)的(de)爆炸危險性(xing)分類。一般按(an)下列步驟選(xuan)(xuan)型和計算。1.需伴(ban)(ban)熱(re)的(de)管(guan)道(dao)(dao)散熱(re)損(sun)失(shi)計算 按(an)公式計算出每1m管(guan)道(dao)(dao)的(de)散熱(re)損(sun)失(shi)（W／m）。 2.產(chan)(chan)品系列的(de)選(xuan)(xuan)擇 ①.確定工作電壓，一...
1.電(dian)(dian)伴熱(re)方(fang)法的分類 ①.感應(ying)加(jia)熱(re)法 感應(ying)加(jia)熱(re)法是在管道(dao)上(shang)纏繞電(dian)(dian)線或電(dian)(dian)纜，當接(jie)(jie)通電(dian)(dian)源后，由于電(dian)(dian)磁感應(ying)效(xiao)應(ying)產生熱(re)量，以補(bu)償管道(dao)的散熱(re)損失(shi)，維持(chi)操作介質的溫度。電(dian)(dian)感應(ying)加(jia)熱(re)費用(yong)太高，限制了這種方(fang)法的發展。 ②.直(zhi)接(jie)(jie)通電(dian)(dian)法 ...
電(dian)伴(ban)(ban)(ban)熱(re)(re)(re)(re)（圖13.18）就是用電(dian)作(zuo)為外部熱(re)(re)(re)(re)源將熱(re)(re)(re)(re)能(neng)(neng)供給管道(dao)系(xi)統，通常以自限溫電(dian)熱(re)(re)(re)(re)帶(dai)對管道(dao)或設備進行伴(ban)(ban)(ban)熱(re)(re)(re)(re)保溫。電(dian)伴(ban)(ban)(ban)熱(re)(re)(re)(re)不但(dan)適(shi)用于蒸(zheng)汽伴(ban)(ban)(ban)熱(re)(re)(re)(re)的各種情況，而(er)且能(neng)(neng)解(jie)決(jue)蒸(zheng)汽伴(ban)(ban)(ban)熱(re)(re)(re)(re)不易(yi)解(jie)決(jue)的許多問題(ti)。電(dian)伴(ban)(ban)(ban)熱(re)(re)(re)(re)主要用于下列情況。 ①.對于熱(re)(re)(re)(re)敏介質管道(dao)的伴(ban)(ban)(ban)熱(re)(re)(re)(re)，電(dian)伴(ban)(ban)(ban)熱(re)(re)(re)(re)能(neng)(neng)有(you)效地(di)進行溫...
①.收(shou)集(ji)站(zhan)(zhan)(zhan)接(jie)(jie)管數：DN40冷凝(ning)水(shui)收(shou)集(ji)站(zhan)(zhan)(zhan)（或(huo)(huo)(huo)DN50熱水(shui)或(huo)(huo)(huo)導熱油收(shou)集(ji)站(zhan)(zhan)(zhan)）每(mei)站(zhan)(zhan)(zhan)設(she)DN15（或(huo)(huo)(huo)DN20）接(jie)(jie)管口(kou)不少于(yu)6個(ge)；DN50冷凝(ning)水(shui)收(shou)集(ji)站(zhan)(zhan)(zhan)（或(huo)(huo)(huo)DN80熱水(shui)或(huo)(huo)(huo)導熱油收(shou)集(ji)站(zhan)(zhan)(zhan)）每(mei)站(zhan)(zhan)(zhan)設(she)DN15（或(huo)(huo)(huo)DN20）接(jie)(jie)管口(kou)不少于(yu)10個(ge)。每(mei)個(ge)收(shou)集(ji)站(zhan)(zhan)(zhan)留1～2個(ge)備(bei)用(yong)口(kou)，備(bei)用(yong)口(kou)應配(pei)置(zhi)閥門并用(yong)...
伴熱管安裝(zhuang)結構(gou)設(she)計(ji)如(ru)圖(tu)13.13（a）～（d）所(suo)示，在水平管線時應安裝(zhuang)在被伴管下方一側(ce)(ce)或兩(liang)側(ce)(ce)。如(ru)圖(tu)13.13（e）～（h）所(suo)示，布(bu)置(zhi)在垂直管時應均(jun)勻敷設(she)。圖(tu)13.13（i）、（j）所(suo)示為(wei)加間隔(ge)板或石棉墊的設(she)計(ji)。圖(tu)13.13（k）～（n）為(wei)異(yi)形隔(ge)熱層（非圓形隔(ge)熱層），...
①.伴(ban)中(zhong)(zhong)管(guan)(guan)(guan)線(xian)的(de)口徑：一(yi)般伴(ban)中(zhong)(zhong)管(guan)(guan)(guan)道的(de)管(guan)(guan)(guan)徑不小(xiao)于(yu)DN15。有的(de)工(gong)程(cheng)熱水、蒸(zheng)汽(qi)伴(ban)中(zhong)(zhong)管(guan)(guan)(guan)線(xian)全部(bu)(bu)采用DN15的(de)管(guan)(guan)(guan)子。有的(de)工(gong)程(cheng)蒸(zheng)汽(qi)伴(ban)熱伴(ban)中(zhong)(zhong)管(guan)(guan)(guan)子全部(bu)(bu)采用DN15的(de)，熱水伴(ban)熱伴(ban)中(zhong)(zhong)管(guan)(guan)(guan)子全部(bu)(bu)采用DN20的(de)。SH／T3040《石油化工(gong)管(guan)(guan)(guan)道伴(ban)管(guan)(guan)(guan)及夾套(tao)管(guan)(guan)(guan)設計規(gui)范》內規(gui)定(ding)伴(ban)管(guan)(guan)(guan)的(de)管(guan)(guan)(guan)徑宜為10、1...
①.分配(pei)(pei)(pei)站(zhan)(zhan)接管(guan)數：DN40蒸(zheng)汽(qi)分配(pei)(pei)(pei)站(zhan)(zhan)（或(huo)(huo)DN50熱(re)(re)水(shui)或(huo)(huo)導油(you)分配(pei)(pei)(pei)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不多于6個(ge)；DN50蒸(zheng)汽(qi)分配(pei)(pei)(pei)站(zhan)(zhan)（或(huo)(huo)DN80熱(re)(re)水(shui)或(huo)(huo)導油(you)分配(pei)(pei)(pei)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不多于10個(ge)。每(mei)個(ge)分配(pei)(pei)(pei)站(zhan)(zhan)留1～2個(ge)備用(yong)口(kou)(kou)，備用(yong)口(kou)(kou)應(ying)配(pei)(pei)(pei)置(zhi)閥門并用(yong)螺(luo)紋管(guan)帽...
①.熱水(shui)(shui)(shui)分(fen)配(pei)站(zhan)(zhan)臥(wo)式(shi)(shi)（水(shui)(shui)(shui)平）布置的(de)形(xing)式(shi)(shi)見圖13.7（a），熱水(shui)(shui)(shui)分(fen)配(pei)站(zhan)(zhan)立式(shi)(shi)（垂直）布置的(de)形(xing)式(shi)(shi)，見圖13.7（b）。②.熱水(shui)(shui)(shui)回(hui)收(shou)站(zhan)(zhan)臥(wo)式(shi)(shi)（水(shui)(shui)(shui)平）布置的(de)形(xing)式(shi)(shi)，見圖13.8（a），熱水(shui)(shui)(shui)回(hui)收(shou)站(zhan)(zhan)立式(shi)(shi)（垂直）布置的(de)形(xing)式(shi)(shi)，見圖13.8（b）。③.蒸汽分(fen)配(pei)站(zhan)(zhan)臥(wo)式(shi)(shi)（水(shui)(shui)(shui)平）布置的(de)形(xing)式(shi)(shi)，見圖13.9（...
1.熱(re)水伴熱(re)系(xi)(xi)統（圖13.2） 2.蒸(zheng)(zheng)汽(qi)伴熱(re)系(xi)(xi)統（圖13.3） ②.蒸(zheng)(zheng)汽(qi)伴熱(re)系(xi)(xi)統分(fen)配站(zhan)。 配管設(she)計見圖13.4。蒸(zheng)(zheng)汽(qi)分(fen)配站(zhan)安裝位置高(gao)于蒸(zheng)(zheng)汽(qi)總管時，分(fen)配站(zhan)低(di)點可不(bu)設(she)排放冷凝水的(de)蒸(zheng)(zheng)汽(qi)疏水閥系(xi)(xi)統，水平(ping)安裝的(de)分(fen)配站(zhan)應無袋形(xing)并(bing)...
1.熱(re)(re)水、蒸汽伴(ban)(ban)熱(re)(re)系統的(de)組成 熱(re)(re)水、蒸汽伴(ban)(ban)熱(re)(re)系統包括(kuo)；熱(re)(re)源總管(guan)(guan)(guan)(guan)、熱(re)(re)介質引入管(guan)(guan)(guan)(guan)、分(fen)配站(zhan)(zhan)、伴(ban)(ban)前管(guan)(guan)(guan)(guan)、伴(ban)(ban)管(guan)(guan)(guan)(guan)、伴(ban)(ban)后管(guan)(guan)(guan)(guan)、冷凝液（熱(re)(re)水回水）收集站(zhan)(zhan)、收集站(zhan)(zhan)出口回流(liu)管(guan)(guan)(guan)(guan)、回流(liu)管(guan)(guan)(guan)(guan)總管(guan)(guan)(guan)(guan)。2.熱(re)(re)水、蒸汽伴(ban)(ban)熱(re)(re)系統設(she)計的(de)一(yi)般要(yao)求(qiu) ①.伴(ban)(ban)熱(re)(re)分(fen)配站(zhan)(zhan)及回收站(zhan)(zhan)的(de)壓(ya)力等級應與(yu)引入管(guan)(guan)(guan)(guan)和返回...
①.不(bu)銹(xiu)鋼(gang)管道(dao)(dao)是否需(xu)要伴熱應依照工藝流程圖及管道(dao)(dao)數據表。 ②.在(zai)環境溫度(du)下(xia)，需(xu)從外部補償管內介(jie)(jie)質熱損失，以(yi)維持被輸送(song)介(jie)(jie)質溫度(du)的(de)不(bu)銹(xiu)鋼(gang)管道(dao)(dao)。 ③.在(zai)輸送(song)過程中(zhong)，由于熱損失而產生凝液，并可能導致腐蝕或(huo)影響正常操作(zuo)的(de)氣體(ti)用(yong)不(bu)銹(xiu)鋼(gang)管道(dao)(dao)。&nbs...
