NEWS
①.電(dian)伴(ban)(ban)(ban)熱(re)系(xi)統安裝前(qian)，被伴(ban)(ban)(ban)熱(re)管道必須全部施(shi)工完畢，并經水(shui)壓試(shi)驗、氣(qi)密試(shi)驗檢查合格(ge)。 ②.安裝時，應先(xian)按照電(dian)伴(ban)(ban)(ban)熱(re)系(xi)統圖逐(zhu)一核對管道編號(hao)、管道規格(ge)、工藝條件、電(dian)伴(ban)(ban)(ban)熱(re)參數(shu)、規格(ge)型(xing)號(hao)、電(dian)氣(qi)設(she)備(bei)和控(kong)制設(she)備(bei)規格(ge)型(xing)號(hao)等(deng)確認無誤后才(cai)能安裝。 ③.電(dian)伴(ban)(ban)(ban)熱(re)...
選(xuan)用電伴(ban)熱產品，主(zhu)要依據工(gong)藝條件、環(huan)境(jing)情(qing)況、管(guan)(guan)道設計(ji)、管(guan)(guan)道所(suo)在區域的(de)爆炸危險性(xing)分類。一般按(an)下(xia)列步驟選(xuan)型和計(ji)算。1.需伴(ban)熱的(de)管(guan)(guan)道散熱損(sun)失(shi)計(ji)算 按(an)公式計(ji)算出每(mei)1m管(guan)(guan)道的(de)散熱損(sun)失(shi)（W／m）。 2.產品系(xi)列的(de)選(xuan)擇 ①.確定工(gong)作電壓，一...
1.電伴熱(re)(re)方法(fa)(fa)(fa)的分類 ①.感應加熱(re)(re)法(fa)(fa)(fa) 感應加熱(re)(re)法(fa)(fa)(fa)是在(zai)管(guan)道(dao)上纏繞電線(xian)或電纜，當接通電源后，由于電磁(ci)感應效應產(chan)生熱(re)(re)量，以補償管(guan)道(dao)的散熱(re)(re)損失，維(wei)持操作介質的溫度(du)。電感應加熱(re)(re)費用太高，限制了這種方法(fa)(fa)(fa)的發展。 ②.直接通電法(fa)(fa)(fa) ...
電(dian)(dian)伴(ban)熱(re)（圖13.18）就是用(yong)(yong)電(dian)(dian)作為(wei)外部(bu)熱(re)源將熱(re)能供給管道(dao)(dao)系統，通(tong)常以(yi)自限溫電(dian)(dian)熱(re)帶(dai)對(dui)管道(dao)(dao)或設備進行伴(ban)熱(re)保(bao)溫。電(dian)(dian)伴(ban)熱(re)不(bu)但適用(yong)(yong)于蒸(zheng)汽(qi)伴(ban)熱(re)的各種情(qing)況(kuang)，而且能解(jie)決蒸(zheng)汽(qi)伴(ban)熱(re)不(bu)易解(jie)決的許多問(wen)題。電(dian)(dian)伴(ban)熱(re)主(zhu)要用(yong)(yong)于下列情(qing)況(kuang)。 ①.對(dui)于熱(re)敏介質管道(dao)(dao)的伴(ban)熱(re)，電(dian)(dian)伴(ban)熱(re)能有效地進行溫...
①.收(shou)集(ji)站(zhan)(zhan)接(jie)(jie)管數：DN40冷(leng)凝(ning)水(shui)(shui)收(shou)集(ji)站(zhan)(zhan)（或(huo)(huo)DN50熱水(shui)(shui)或(huo)(huo)導熱油收(shou)集(ji)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設DN15（或(huo)(huo)DN20）接(jie)(jie)管口不少于6個(ge)(ge)；DN50冷(leng)凝(ning)水(shui)(shui)收(shou)集(ji)站(zhan)(zhan)（或(huo)(huo)DN80熱水(shui)(shui)或(huo)(huo)導熱油收(shou)集(ji)站(zhan)(zhan)）每(mei)站(zhan)(zhan)設DN15（或(huo)(huo)DN20）接(jie)(jie)管口不少于10個(ge)(ge)。每(mei)個(ge)(ge)收(shou)集(ji)站(zhan)(zhan)留1～2個(ge)(ge)備用口，備用口應配置閥門并用...
伴熱管(guan)安裝(zhuang)結構設(she)計如(ru)圖13.13（a）～（d）所示，在水平管(guan)線時(shi)應安裝(zhuang)在被伴管(guan)下方(fang)一側(ce)或兩側(ce)。如(ru)圖13.13（e）～（h）所示，布置在垂直(zhi)管(guan)時(shi)應均勻敷設(she)。圖13.13（i）、（j）所示為(wei)加間隔(ge)(ge)板或石棉墊的設(she)計。圖13.13（k）～（n）為(wei)異形隔(ge)(ge)熱層(ceng)（非圓形隔(ge)(ge)熱層(ceng)），...
①.伴(ban)(ban)中(zhong)管(guan)(guan)(guan)(guan)線的(de)(de)(de)口徑(jing)：一般伴(ban)(ban)中(zhong)管(guan)(guan)(guan)(guan)道的(de)(de)(de)管(guan)(guan)(guan)(guan)徑(jing)不小于(yu)DN15。有的(de)(de)(de)工程(cheng)熱(re)水、蒸(zheng)汽伴(ban)(ban)中(zhong)管(guan)(guan)(guan)(guan)線全(quan)部采(cai)用DN15的(de)(de)(de)管(guan)(guan)(guan)(guan)子。有的(de)(de)(de)工程(cheng)蒸(zheng)汽伴(ban)(ban)熱(re)伴(ban)(ban)中(zhong)管(guan)(guan)(guan)(guan)子全(quan)部采(cai)用DN15的(de)(de)(de)，熱(re)水伴(ban)(ban)熱(re)伴(ban)(ban)中(zhong)管(guan)(guan)(guan)(guan)子全(quan)部采(cai)用DN20的(de)(de)(de)。SH／T3040《石(shi)油化工管(guan)(guan)(guan)(guan)道伴(ban)(ban)管(guan)(guan)(guan)(guan)及夾套管(guan)(guan)(guan)(guan)設計規范》內規定伴(ban)(ban)管(guan)(guan)(guan)(guan)的(de)(de)(de)管(guan)(guan)(guan)(guan)徑(jing)宜為10、1...
①.分配(pei)(pei)站(zhan)接(jie)管數(shu)：DN40蒸(zheng)汽(qi)分配(pei)(pei)站(zhan)（或(huo)(huo)DN50熱水或(huo)(huo)導油分配(pei)(pei)站(zhan)）每站(zhan)設DN15（或(huo)(huo)DN20）接(jie)管口(kou)不多(duo)于6個(ge)；DN50蒸(zheng)汽(qi)分配(pei)(pei)站(zhan)（或(huo)(huo)DN80熱水或(huo)(huo)導油分配(pei)(pei)站(zhan)）每站(zhan)設DN15（或(huo)(huo)DN20）接(jie)管口(kou)不多(duo)于10個(ge)。每個(ge)分配(pei)(pei)站(zhan)留1～2個(ge)備(bei)(bei)用口(kou)，備(bei)(bei)用口(kou)應配(pei)(pei)置閥門并用螺紋(wen)管帽(mao)...
①.熱(re)(re)水(shui)(shui)分配站(zhan)(zhan)臥式(shi)（水(shui)(shui)平）布置(zhi)(zhi)的(de)形式(shi)見(jian)(jian)圖13.7（a），熱(re)(re)水(shui)(shui)分配站(zhan)(zhan)立式(shi)（垂(chui)直）布置(zhi)(zhi)的(de)形式(shi)，見(jian)(jian)圖13.7（b）。②.熱(re)(re)水(shui)(shui)回收(shou)站(zhan)(zhan)臥式(shi)（水(shui)(shui)平）布置(zhi)(zhi)的(de)形式(shi)，見(jian)(jian)圖13.8（a），熱(re)(re)水(shui)(shui)回收(shou)站(zhan)(zhan)立式(shi)（垂(chui)直）布置(zhi)(zhi)的(de)形式(shi)，見(jian)(jian)圖13.8（b）。③.蒸汽分配站(zhan)(zhan)臥式(shi)（水(shui)(shui)平）布置(zhi)(zhi)的(de)形式(shi)，見(jian)(jian)圖13.9（...
1.熱水(shui)(shui)(shui)伴熱系(xi)統(tong)(tong)（圖13.2） 2.蒸汽(qi)伴熱系(xi)統(tong)(tong)（圖13.3） ②.蒸汽(qi)伴熱系(xi)統(tong)(tong)分(fen)(fen)(fen)配(pei)(pei)站。 配(pei)(pei)管設計見圖13.4。蒸汽(qi)分(fen)(fen)(fen)配(pei)(pei)站安裝位置高于蒸汽(qi)總管時，分(fen)(fen)(fen)配(pei)(pei)站低點可不設排(pai)放冷凝水(shui)(shui)(shui)的(de)蒸汽(qi)疏(shu)水(shui)(shui)(shui)閥系(xi)統(tong)(tong)，水(shui)(shui)(shui)平安裝的(de)分(fen)(fen)(fen)配(pei)(pei)站應(ying)無袋(dai)形并...
1.熱(re)(re)水(shui)、蒸汽(qi)(qi)伴(ban)(ban)熱(re)(re)系統的組成 熱(re)(re)水(shui)、蒸汽(qi)(qi)伴(ban)(ban)熱(re)(re)系統包(bao)括；熱(re)(re)源總管(guan)(guan)(guan)(guan)(guan)、熱(re)(re)介質引(yin)(yin)入管(guan)(guan)(guan)(guan)(guan)、分配站(zhan)、伴(ban)(ban)前管(guan)(guan)(guan)(guan)(guan)、伴(ban)(ban)管(guan)(guan)(guan)(guan)(guan)、伴(ban)(ban)后管(guan)(guan)(guan)(guan)(guan)、冷凝液（熱(re)(re)水(shui)回(hui)(hui)(hui)水(shui)）收(shou)集(ji)站(zhan)、收(shou)集(ji)站(zhan)出口回(hui)(hui)(hui)流管(guan)(guan)(guan)(guan)(guan)、回(hui)(hui)(hui)流管(guan)(guan)(guan)(guan)(guan)總管(guan)(guan)(guan)(guan)(guan)。2.熱(re)(re)水(shui)、蒸汽(qi)(qi)伴(ban)(ban)熱(re)(re)系統設計的一般要求 ①.伴(ban)(ban)熱(re)(re)分配站(zhan)及回(hui)(hui)(hui)收(shou)站(zhan)的壓力等級應與引(yin)(yin)入管(guan)(guan)(guan)(guan)(guan)和返(fan)回(hui)(hui)(hui)...
①.不(bu)銹鋼(gang)管道(dao)是否需要伴熱(re)應依(yi)照工藝流程圖(tu)及管道(dao)數據表。 ②.在(zai)環(huan)境溫(wen)度下(xia)，需從外部補償管內介質熱(re)損(sun)失(shi)，以維持被輸送介質溫(wen)度的(de)不(bu)銹鋼(gang)管道(dao)。 ③.在(zai)輸送過程中，由于(yu)熱(re)損(sun)失(shi)而(er)產生凝(ning)液，并可能(neng)導(dao)致(zhi)腐蝕或影響正常操(cao)作的(de)氣體用(yong)不(bu)銹鋼(gang)管道(dao)。&nbs...
