NEWS
①.電伴(ban)(ban)熱(re)系統(tong)安裝前，被伴(ban)(ban)熱(re)管道(dao)必須全部施工完畢，并經水壓試驗(yan)、氣(qi)密試驗(yan)檢查合(he)格。 ②.安裝時，應先按照電伴(ban)(ban)熱(re)系統(tong)圖逐一核對管道(dao)編(bian)號(hao)、管道(dao)規(gui)格、工藝條件、電伴(ban)(ban)熱(re)參(can)數、規(gui)格型(xing)(xing)號(hao)、電氣(qi)設備和控制設備規(gui)格型(xing)(xing)號(hao)等確認無(wu)誤(wu)后才能安裝。 ③.電伴(ban)(ban)熱(re)...
選用電伴(ban)熱(re)產品，主要(yao)依(yi)據工藝條件、環(huan)境情(qing)況、管(guan)道設計(ji)、管(guan)道所在區域的(de)爆炸危險性分類。一般按(an)下列(lie)步(bu)驟選型和計(ji)算(suan)。1.需伴(ban)熱(re)的(de)管(guan)道散(san)熱(re)損(sun)失(shi)計(ji)算(suan) 按(an)公(gong)式計(ji)算(suan)出每(mei)1m管(guan)道的(de)散(san)熱(re)損(sun)失(shi)（W／m）。 2.產品系(xi)列(lie)的(de)選擇 ①.確(que)定工作電壓，一...
1.電(dian)(dian)伴熱(re)方(fang)(fang)法的分類 ①.感(gan)應加(jia)熱(re)法 感(gan)應加(jia)熱(re)法是在管道(dao)上(shang)纏(chan)繞電(dian)(dian)線或(huo)電(dian)(dian)纜，當接(jie)通電(dian)(dian)源(yuan)后，由于電(dian)(dian)磁感(gan)應效應產生熱(re)量，以補償管道(dao)的散熱(re)損失，維持操作介(jie)質的溫(wen)度(du)。電(dian)(dian)感(gan)應加(jia)熱(re)費(fei)用太高，限制了這種方(fang)(fang)法的發展。 ②.直(zhi)接(jie)通電(dian)(dian)法 ...
電(dian)(dian)(dian)伴(ban)(ban)熱(re)（圖13.18）就是用(yong)電(dian)(dian)(dian)作為外部熱(re)源將熱(re)能供給管(guan)道系(xi)統，通常以自限(xian)溫電(dian)(dian)(dian)熱(re)帶對(dui)管(guan)道或設(she)備進行伴(ban)(ban)熱(re)保溫。電(dian)(dian)(dian)伴(ban)(ban)熱(re)不(bu)但適用(yong)于蒸汽伴(ban)(ban)熱(re)的(de)各種(zhong)情況(kuang)，而(er)且能解決蒸汽伴(ban)(ban)熱(re)不(bu)易解決的(de)許多問題(ti)。電(dian)(dian)(dian)伴(ban)(ban)熱(re)主要用(yong)于下列情況(kuang)。 ①.對(dui)于熱(re)敏介質管(guan)道的(de)伴(ban)(ban)熱(re)，電(dian)(dian)(dian)伴(ban)(ban)熱(re)能有(you)效(xiao)地進行溫...
①.收(shou)集(ji)(ji)站(zhan)(zhan)接管(guan)數：DN40冷凝水收(shou)集(ji)(ji)站(zhan)(zhan)（或DN50熱(re)(re)水或導熱(re)(re)油收(shou)集(ji)(ji)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或DN20）接管(guan)口(kou)不少于(yu)6個；DN50冷凝水收(shou)集(ji)(ji)站(zhan)(zhan)（或DN80熱(re)(re)水或導熱(re)(re)油收(shou)集(ji)(ji)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或DN20）接管(guan)口(kou)不少于(yu)10個。每(mei)個收(shou)集(ji)(ji)站(zhan)(zhan)留1～2個備用(yong)(yong)口(kou)，備用(yong)(yong)口(kou)應配置閥門并用(yong)(yong)...
伴熱(re)管(guan)(guan)安(an)裝結構設(she)(she)計如(ru)圖(tu)13.13（a）～（d）所示(shi)(shi)，在水平管(guan)(guan)線時應安(an)裝在被伴管(guan)(guan)下方一(yi)側(ce)(ce)或兩(liang)側(ce)(ce)。如(ru)圖(tu)13.13（e）～（h）所示(shi)(shi)，布置(zhi)在垂直管(guan)(guan)時應均勻敷(fu)設(she)(she)。圖(tu)13.13（i）、（j）所示(shi)(shi)為(wei)(wei)加間隔(ge)板或石棉墊的設(she)(she)計。圖(tu)13.13（k）～（n）為(wei)(wei)異形隔(ge)熱(re)層（非(fei)圓形隔(ge)熱(re)層），...
①.伴(ban)(ban)(ban)中(zhong)管線(xian)的(de)(de)(de)口徑(jing)：一般伴(ban)(ban)(ban)中(zhong)管道(dao)的(de)(de)(de)管徑(jing)不小于DN15。有的(de)(de)(de)工(gong)程(cheng)熱(re)水(shui)、蒸汽(qi)伴(ban)(ban)(ban)中(zhong)管線(xian)全(quan)部(bu)采用(yong)(yong)DN15的(de)(de)(de)管子(zi)。有的(de)(de)(de)工(gong)程(cheng)蒸汽(qi)伴(ban)(ban)(ban)熱(re)伴(ban)(ban)(ban)中(zhong)管子(zi)全(quan)部(bu)采用(yong)(yong)DN15的(de)(de)(de)，熱(re)水(shui)伴(ban)(ban)(ban)熱(re)伴(ban)(ban)(ban)中(zhong)管子(zi)全(quan)部(bu)采用(yong)(yong)DN20的(de)(de)(de)。SH／T3040《石油化工(gong)管道(dao)伴(ban)(ban)(ban)管及夾套管設計(ji)規(gui)范》內規(gui)定(ding)伴(ban)(ban)(ban)管的(de)(de)(de)管徑(jing)宜為10、1...
①.分配站接管(guan)數：DN40蒸(zheng)汽(qi)分配站（或(huo)(huo)DN50熱水或(huo)(huo)導油分配站）每站設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不多于6個(ge)；DN50蒸(zheng)汽(qi)分配站（或(huo)(huo)DN80熱水或(huo)(huo)導油分配站）每站設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不多于10個(ge)。每個(ge)分配站留1～2個(ge)備用(yong)(yong)(yong)口(kou)(kou)，備用(yong)(yong)(yong)口(kou)(kou)應配置閥門并用(yong)(yong)(yong)螺紋管(guan)帽...
①.熱水(shui)(shui)分(fen)配(pei)站臥式(shi)(shi)(shi)(shi)（水(shui)(shui)平）布(bu)置(zhi)的(de)(de)形(xing)式(shi)(shi)(shi)(shi)見(jian)圖13.7（a），熱水(shui)(shui)分(fen)配(pei)站立式(shi)(shi)(shi)(shi)（垂直(zhi)）布(bu)置(zhi)的(de)(de)形(xing)式(shi)(shi)(shi)(shi)，見(jian)圖13.7（b）。②.熱水(shui)(shui)回(hui)收站臥式(shi)(shi)(shi)(shi)（水(shui)(shui)平）布(bu)置(zhi)的(de)(de)形(xing)式(shi)(shi)(shi)(shi)，見(jian)圖13.8（a），熱水(shui)(shui)回(hui)收站立式(shi)(shi)(shi)(shi)（垂直(zhi)）布(bu)置(zhi)的(de)(de)形(xing)式(shi)(shi)(shi)(shi)，見(jian)圖13.8（b）。③.蒸汽分(fen)配(pei)站臥式(shi)(shi)(shi)(shi)（水(shui)(shui)平）布(bu)置(zhi)的(de)(de)形(xing)式(shi)(shi)(shi)(shi)，見(jian)圖13.9（...
1.熱(re)水(shui)伴(ban)(ban)熱(re)系(xi)統（圖13.2） 2.蒸汽(qi)(qi)伴(ban)(ban)熱(re)系(xi)統（圖13.3） ②.蒸汽(qi)(qi)伴(ban)(ban)熱(re)系(xi)統分配(pei)站。 配(pei)管設計見圖13.4。蒸汽(qi)(qi)分配(pei)站安裝位(wei)置高于蒸汽(qi)(qi)總管時(shi)，分配(pei)站低(di)點可不設排放冷凝水(shui)的蒸汽(qi)(qi)疏水(shui)閥系(xi)統，水(shui)平(ping)安裝的分配(pei)站應無袋形并(bing)...
1.熱(re)水、蒸(zheng)汽(qi)伴(ban)熱(re)系(xi)(xi)統(tong)的組成(cheng) 熱(re)水、蒸(zheng)汽(qi)伴(ban)熱(re)系(xi)(xi)統(tong)包括；熱(re)源總(zong)(zong)管(guan)(guan)(guan)、熱(re)介質引(yin)入管(guan)(guan)(guan)、分配站(zhan)(zhan)、伴(ban)前管(guan)(guan)(guan)、伴(ban)管(guan)(guan)(guan)、伴(ban)后管(guan)(guan)(guan)、冷凝液（熱(re)水回(hui)(hui)(hui)水）收集站(zhan)(zhan)、收集站(zhan)(zhan)出口回(hui)(hui)(hui)流管(guan)(guan)(guan)、回(hui)(hui)(hui)流管(guan)(guan)(guan)總(zong)(zong)管(guan)(guan)(guan)。2.熱(re)水、蒸(zheng)汽(qi)伴(ban)熱(re)系(xi)(xi)統(tong)設(she)計的一般要求 ①.伴(ban)熱(re)分配站(zhan)(zhan)及回(hui)(hui)(hui)收站(zhan)(zhan)的壓(ya)力等級應與(yu)引(yin)入管(guan)(guan)(guan)和返回(hui)(hui)(hui)...
①.不銹鋼管(guan)道是否需要伴(ban)熱(re)應依照(zhao)工(gong)藝(yi)流程(cheng)圖及管(guan)道數據表。 ②.在(zai)環境溫度下，需從(cong)外部補償(chang)管(guan)內介質(zhi)熱(re)損失(shi)，以維持(chi)被輸送介質(zhi)溫度的(de)不銹鋼管(guan)道。 ③.在(zai)輸送過程(cheng)中，由于(yu)熱(re)損失(shi)而產(chan)生凝液，并可能導致(zhi)腐蝕或影響正常操作(zuo)的(de)氣體用(yong)不銹鋼管(guan)道。&nbs...
