NEWS
①.電伴(ban)熱系統(tong)安裝(zhuang)(zhuang)前，被伴(ban)熱管(guan)(guan)道必須全部施(shi)工完畢，并(bing)經水(shui)壓試(shi)驗、氣密試(shi)驗檢查合(he)格。 ②.安裝(zhuang)(zhuang)時，應先按照電伴(ban)熱系統(tong)圖(tu)逐(zhu)一核對管(guan)(guan)道編號(hao)、管(guan)(guan)道規(gui)格、工藝條件、電伴(ban)熱參數、規(gui)格型號(hao)、電氣設備和控制設備規(gui)格型號(hao)等確認(ren)無誤后才能安裝(zhuang)(zhuang)。 ③.電伴(ban)熱...
選(xuan)用電伴熱產品，主(zhu)要依(yi)據工藝條件、環(huan)境(jing)情況、管(guan)(guan)道(dao)(dao)設計(ji)(ji)、管(guan)(guan)道(dao)(dao)所(suo)在(zai)區域(yu)的(de)爆炸危(wei)險性(xing)分類(lei)。一(yi)般按下列(lie)步驟(zou)選(xuan)型和(he)計(ji)(ji)算(suan)。1.需伴熱的(de)管(guan)(guan)道(dao)(dao)散(san)熱損(sun)(sun)失計(ji)(ji)算(suan) 按公式計(ji)(ji)算(suan)出每(mei)1m管(guan)(guan)道(dao)(dao)的(de)散(san)熱損(sun)(sun)失（W／m）。 2.產品系(xi)列(lie)的(de)選(xuan)擇 ①.確定工作(zuo)電壓(ya)，一(yi)...
1.電(dian)(dian)伴熱(re)(re)(re)方(fang)(fang)法(fa)(fa)的(de)分類 ①.感(gan)(gan)應(ying)加熱(re)(re)(re)法(fa)(fa) 感(gan)(gan)應(ying)加熱(re)(re)(re)法(fa)(fa)是在(zai)管(guan)道(dao)上纏繞(rao)電(dian)(dian)線或電(dian)(dian)纜，當接通(tong)電(dian)(dian)源后，由于電(dian)(dian)磁感(gan)(gan)應(ying)效應(ying)產生熱(re)(re)(re)量，以補償管(guan)道(dao)的(de)散熱(re)(re)(re)損失(shi)，維持(chi)操作介(jie)質的(de)溫度。電(dian)(dian)感(gan)(gan)應(ying)加熱(re)(re)(re)費用太(tai)高，限制了這種(zhong)方(fang)(fang)法(fa)(fa)的(de)發展。 ②.直接通(tong)電(dian)(dian)法(fa)(fa) ...
電(dian)伴(ban)(ban)熱(re)(re)（圖13.18）就是(shi)用電(dian)作為外(wai)部(bu)熱(re)(re)源將(jiang)熱(re)(re)能(neng)(neng)供給(gei)管(guan)(guan)道系統，通常以自限(xian)溫(wen)電(dian)熱(re)(re)帶對管(guan)(guan)道或設備(bei)進行伴(ban)(ban)熱(re)(re)保溫(wen)。電(dian)伴(ban)(ban)熱(re)(re)不但適(shi)用于(yu)蒸汽伴(ban)(ban)熱(re)(re)的各種情(qing)況，而且能(neng)(neng)解(jie)決蒸汽伴(ban)(ban)熱(re)(re)不易解(jie)決的許多(duo)問題。電(dian)伴(ban)(ban)熱(re)(re)主要用于(yu)下列情(qing)況。 ①.對于(yu)熱(re)(re)敏介質管(guan)(guan)道的伴(ban)(ban)熱(re)(re)，電(dian)伴(ban)(ban)熱(re)(re)能(neng)(neng)有效地進行溫(wen)...
①.收(shou)(shou)集(ji)站(zhan)(zhan)接管數：DN40冷凝水收(shou)(shou)集(ji)站(zhan)(zhan)（或DN50熱水或導(dao)熱油(you)收(shou)(shou)集(ji)站(zhan)(zhan)）每(mei)(mei)站(zhan)(zhan)設DN15（或DN20）接管口(kou)不少于6個；DN50冷凝水收(shou)(shou)集(ji)站(zhan)(zhan)（或DN80熱水或導(dao)熱油(you)收(shou)(shou)集(ji)站(zhan)(zhan)）每(mei)(mei)站(zhan)(zhan)設DN15（或DN20）接管口(kou)不少于10個。每(mei)(mei)個收(shou)(shou)集(ji)站(zhan)(zhan)留1～2個備(bei)(bei)用口(kou)，備(bei)(bei)用口(kou)應配(pei)置閥門并用...
伴(ban)熱管(guan)安裝結構設(she)計(ji)如圖13.13（a）～（d）所(suo)示，在(zai)水平管(guan)線時(shi)應安裝在(zai)被伴(ban)管(guan)下方一側(ce)(ce)或(huo)兩(liang)側(ce)(ce)。如圖13.13（e）～（h）所(suo)示，布(bu)置在(zai)垂直(zhi)管(guan)時(shi)應均勻(yun)敷設(she)。圖13.13（i）、（j）所(suo)示為加(jia)間隔(ge)板或(huo)石棉墊的設(she)計(ji)。圖13.13（k）～（n）為異形隔(ge)熱層（非圓形隔(ge)熱層），...
①.伴(ban)(ban)中(zhong)(zhong)(zhong)管(guan)(guan)(guan)線的(de)(de)口徑(jing)：一般伴(ban)(ban)中(zhong)(zhong)(zhong)管(guan)(guan)(guan)道的(de)(de)管(guan)(guan)(guan)徑(jing)不小于DN15。有(you)的(de)(de)工(gong)程熱水、蒸(zheng)汽伴(ban)(ban)中(zhong)(zhong)(zhong)管(guan)(guan)(guan)線全部采(cai)用DN15的(de)(de)管(guan)(guan)(guan)子。有(you)的(de)(de)工(gong)程蒸(zheng)汽伴(ban)(ban)熱伴(ban)(ban)中(zhong)(zhong)(zhong)管(guan)(guan)(guan)子全部采(cai)用DN15的(de)(de)，熱水伴(ban)(ban)熱伴(ban)(ban)中(zhong)(zhong)(zhong)管(guan)(guan)(guan)子全部采(cai)用DN20的(de)(de)。SH／T3040《石油化工(gong)管(guan)(guan)(guan)道伴(ban)(ban)管(guan)(guan)(guan)及(ji)夾套管(guan)(guan)(guan)設計規范》內規定(ding)伴(ban)(ban)管(guan)(guan)(guan)的(de)(de)管(guan)(guan)(guan)徑(jing)宜為10、1...
①.分(fen)配(pei)站(zhan)(zhan)(zhan)接(jie)(jie)管數(shu)：DN40蒸汽分(fen)配(pei)站(zhan)(zhan)(zhan)（或DN50熱水或導油分(fen)配(pei)站(zhan)(zhan)(zhan)）每站(zhan)(zhan)(zhan)設DN15（或DN20）接(jie)(jie)管口(kou)(kou)不多于6個；DN50蒸汽分(fen)配(pei)站(zhan)(zhan)(zhan)（或DN80熱水或導油分(fen)配(pei)站(zhan)(zhan)(zhan)）每站(zhan)(zhan)(zhan)設DN15（或DN20）接(jie)(jie)管口(kou)(kou)不多于10個。每個分(fen)配(pei)站(zhan)(zhan)(zhan)留1～2個備(bei)用口(kou)(kou)，備(bei)用口(kou)(kou)應配(pei)置閥門(men)并用螺紋管帽...
①.熱(re)水(shui)(shui)分配(pei)站臥(wo)式(shi)(shi)（水(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)式(shi)(shi)見(jian)圖(tu)13.7（a），熱(re)水(shui)(shui)分配(pei)站立(li)式(shi)(shi)（垂直）布(bu)(bu)(bu)置(zhi)的形(xing)式(shi)(shi)，見(jian)圖(tu)13.7（b）。②.熱(re)水(shui)(shui)回收站臥(wo)式(shi)(shi)（水(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)式(shi)(shi)，見(jian)圖(tu)13.8（a），熱(re)水(shui)(shui)回收站立(li)式(shi)(shi)（垂直）布(bu)(bu)(bu)置(zhi)的形(xing)式(shi)(shi)，見(jian)圖(tu)13.8（b）。③.蒸汽分配(pei)站臥(wo)式(shi)(shi)（水(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)式(shi)(shi)，見(jian)圖(tu)13.9（...
1.熱(re)(re)水伴熱(re)(re)系(xi)統（圖13.2） 2.蒸汽(qi)(qi)伴熱(re)(re)系(xi)統（圖13.3） ②.蒸汽(qi)(qi)伴熱(re)(re)系(xi)統分配站(zhan)。 配管(guan)設計(ji)見圖13.4。蒸汽(qi)(qi)分配站(zhan)安裝位置(zhi)高于蒸汽(qi)(qi)總管(guan)時(shi)，分配站(zhan)低點可不設排放冷凝水的蒸汽(qi)(qi)疏水閥系(xi)統，水平安裝的分配站(zhan)應無(wu)袋形(xing)并...
1.熱(re)(re)(re)(re)(re)水(shui)、蒸汽伴(ban)(ban)(ban)(ban)熱(re)(re)(re)(re)(re)系統的組成(cheng) 熱(re)(re)(re)(re)(re)水(shui)、蒸汽伴(ban)(ban)(ban)(ban)熱(re)(re)(re)(re)(re)系統包括；熱(re)(re)(re)(re)(re)源總(zong)管、熱(re)(re)(re)(re)(re)介質引入管、分配(pei)站(zhan)、伴(ban)(ban)(ban)(ban)前管、伴(ban)(ban)(ban)(ban)管、伴(ban)(ban)(ban)(ban)后管、冷凝液（熱(re)(re)(re)(re)(re)水(shui)回(hui)(hui)(hui)水(shui)）收(shou)(shou)集站(zhan)、收(shou)(shou)集站(zhan)出口回(hui)(hui)(hui)流(liu)管、回(hui)(hui)(hui)流(liu)管總(zong)管。2.熱(re)(re)(re)(re)(re)水(shui)、蒸汽伴(ban)(ban)(ban)(ban)熱(re)(re)(re)(re)(re)系統設計的一般(ban)要求 ①.伴(ban)(ban)(ban)(ban)熱(re)(re)(re)(re)(re)分配(pei)站(zhan)及回(hui)(hui)(hui)收(shou)(shou)站(zhan)的壓力等級應(ying)與(yu)引入管和返回(hui)(hui)(hui)...
①.不(bu)銹(xiu)鋼管(guan)道(dao)是否需(xu)要伴(ban)熱應依照(zhao)工藝流程(cheng)圖及管(guan)道(dao)數據表(biao)。 ②.在環境溫(wen)度(du)下(xia)，需(xu)從(cong)外部(bu)補償管(guan)內介質(zhi)熱損失(shi)，以維持(chi)被(bei)輸送(song)(song)介質(zhi)溫(wen)度(du)的不(bu)銹(xiu)鋼管(guan)道(dao)。 ③.在輸送(song)(song)過程(cheng)中，由于熱損失(shi)而產生凝液(ye)，并可能導致腐蝕或(huo)影響正常(chang)操作的氣體用不(bu)銹(xiu)鋼管(guan)道(dao)。&nbs...
