NEWS
①.電伴(ban)(ban)熱(re)系統(tong)安裝(zhuang)前，被伴(ban)(ban)熱(re)管道必須全(quan)部施工(gong)完畢，并經水壓試(shi)驗、氣(qi)密試(shi)驗檢查(cha)合格(ge)(ge)(ge)。 ②.安裝(zhuang)時(shi)，應先按照(zhao)電伴(ban)(ban)熱(re)系統(tong)圖逐一核(he)對管道編號、管道規(gui)(gui)格(ge)(ge)(ge)、工(gong)藝條件、電伴(ban)(ban)熱(re)參數、規(gui)(gui)格(ge)(ge)(ge)型號、電氣(qi)設備和控(kong)制設備規(gui)(gui)格(ge)(ge)(ge)型號等(deng)確(que)認(ren)無誤后才能安裝(zhuang)。 ③.電伴(ban)(ban)熱(re)...
選用電(dian)伴(ban)熱產(chan)品，主要依據(ju)工藝條件、環境情(qing)況、管道設計(ji)、管道所在區域的爆炸危險性分(fen)類。一(yi)般(ban)按下列步驟選型和計(ji)算。1.需伴(ban)熱的管道散(san)熱損失(shi)計(ji)算 按公式計(ji)算出每(mei)1m管道的散(san)熱損失(shi)（W／m）。 2.產(chan)品系列的選擇(ze) ①.確(que)定工作電(dian)壓，一(yi)...
1.電(dian)(dian)伴熱(re)(re)方法的分類 ①.感(gan)應(ying)加熱(re)(re)法 感(gan)應(ying)加熱(re)(re)法是在(zai)管道上纏繞電(dian)(dian)線或電(dian)(dian)纜，當接通電(dian)(dian)源后，由于電(dian)(dian)磁感(gan)應(ying)效應(ying)產生熱(re)(re)量，以補償管道的散熱(re)(re)損失，維(wei)持操作介質的溫度。電(dian)(dian)感(gan)應(ying)加熱(re)(re)費用太高，限制了(le)這種方法的發展。 ②.直(zhi)接通電(dian)(dian)法 ...
電(dian)(dian)伴(ban)(ban)熱(re)(re)（圖13.18）就是用(yong)(yong)電(dian)(dian)作為(wei)外部熱(re)(re)源將熱(re)(re)能(neng)供給管(guan)道(dao)(dao)系統，通(tong)常以自限溫(wen)電(dian)(dian)熱(re)(re)帶(dai)對(dui)管(guan)道(dao)(dao)或設備進(jin)行(xing)伴(ban)(ban)熱(re)(re)保溫(wen)。電(dian)(dian)伴(ban)(ban)熱(re)(re)不但適用(yong)(yong)于蒸汽伴(ban)(ban)熱(re)(re)的各種情況(kuang)，而且(qie)能(neng)解決蒸汽伴(ban)(ban)熱(re)(re)不易解決的許多問題。電(dian)(dian)伴(ban)(ban)熱(re)(re)主要(yao)用(yong)(yong)于下列情況(kuang)。 ①.對(dui)于熱(re)(re)敏介質管(guan)道(dao)(dao)的伴(ban)(ban)熱(re)(re)，電(dian)(dian)伴(ban)(ban)熱(re)(re)能(neng)有效地進(jin)行(xing)溫(wen)...
①.收(shou)(shou)集(ji)(ji)站(zhan)(zhan)接(jie)管數(shu)：DN40冷凝(ning)水收(shou)(shou)集(ji)(ji)站(zhan)(zhan)（或DN50熱(re)水或導熱(re)油(you)收(shou)(shou)集(ji)(ji)站(zhan)(zhan)）每(mei)(mei)站(zhan)(zhan)設(she)DN15（或DN20）接(jie)管口(kou)不少(shao)于6個(ge)(ge)；DN50冷凝(ning)水收(shou)(shou)集(ji)(ji)站(zhan)(zhan)（或DN80熱(re)水或導熱(re)油(you)收(shou)(shou)集(ji)(ji)站(zhan)(zhan)）每(mei)(mei)站(zhan)(zhan)設(she)DN15（或DN20）接(jie)管口(kou)不少(shao)于10個(ge)(ge)。每(mei)(mei)個(ge)(ge)收(shou)(shou)集(ji)(ji)站(zhan)(zhan)留1～2個(ge)(ge)備用(yong)(yong)口(kou)，備用(yong)(yong)口(kou)應配置閥(fa)門并用(yong)(yong)...
伴(ban)熱(re)管(guan)(guan)安裝結構設(she)計(ji)如(ru)圖(tu)(tu)13.13（a）～（d）所示，在(zai)水平管(guan)(guan)線時(shi)應安裝在(zai)被伴(ban)管(guan)(guan)下方一側或(huo)兩側。如(ru)圖(tu)(tu)13.13（e）～（h）所示，布置在(zai)垂直管(guan)(guan)時(shi)應均勻敷設(she)。圖(tu)(tu)13.13（i）、（j）所示為加間隔(ge)(ge)板或(huo)石棉墊的設(she)計(ji)。圖(tu)(tu)13.13（k）～（n）為異形隔(ge)(ge)熱(re)層(ceng)（非圓形隔(ge)(ge)熱(re)層(ceng)），...
①.伴(ban)(ban)(ban)(ban)中(zhong)(zhong)管(guan)(guan)(guan)線(xian)的(de)(de)口徑：一般伴(ban)(ban)(ban)(ban)中(zhong)(zhong)管(guan)(guan)(guan)道(dao)的(de)(de)管(guan)(guan)(guan)徑不小于DN15。有的(de)(de)工(gong)程熱(re)水(shui)(shui)、蒸汽伴(ban)(ban)(ban)(ban)中(zhong)(zhong)管(guan)(guan)(guan)線(xian)全部(bu)采用DN15的(de)(de)管(guan)(guan)(guan)子(zi)。有的(de)(de)工(gong)程蒸汽伴(ban)(ban)(ban)(ban)熱(re)伴(ban)(ban)(ban)(ban)中(zhong)(zhong)管(guan)(guan)(guan)子(zi)全部(bu)采用DN15的(de)(de)，熱(re)水(shui)(shui)伴(ban)(ban)(ban)(ban)熱(re)伴(ban)(ban)(ban)(ban)中(zhong)(zhong)管(guan)(guan)(guan)子(zi)全部(bu)采用DN20的(de)(de)。SH／T3040《石油化工(gong)管(guan)(guan)(guan)道(dao)伴(ban)(ban)(ban)(ban)管(guan)(guan)(guan)及夾套管(guan)(guan)(guan)設計規范》內(nei)規定伴(ban)(ban)(ban)(ban)管(guan)(guan)(guan)的(de)(de)管(guan)(guan)(guan)徑宜為10、1...
①.分配站(zhan)(zhan)接管(guan)數：DN40蒸汽(qi)分配站(zhan)(zhan)（或(huo)(huo)DN50熱水(shui)或(huo)(huo)導油(you)分配站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不(bu)多于(yu)6個(ge)；DN50蒸汽(qi)分配站(zhan)(zhan)（或(huo)(huo)DN80熱水(shui)或(huo)(huo)導油(you)分配站(zhan)(zhan)）每(mei)站(zhan)(zhan)設(she)DN15（或(huo)(huo)DN20）接管(guan)口(kou)(kou)不(bu)多于(yu)10個(ge)。每(mei)個(ge)分配站(zhan)(zhan)留1～2個(ge)備用口(kou)(kou)，備用口(kou)(kou)應配置閥門并(bing)用螺紋管(guan)帽...
①.熱水(shui)(shui)(shui)分(fen)配站(zhan)臥式(shi)(shi)（水(shui)(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)(xing)(xing)式(shi)(shi)見(jian)圖(tu)13.7（a），熱水(shui)(shui)(shui)分(fen)配站(zhan)立式(shi)(shi)（垂(chui)直(zhi)）布(bu)(bu)(bu)置(zhi)的形(xing)(xing)(xing)式(shi)(shi)，見(jian)圖(tu)13.7（b）。②.熱水(shui)(shui)(shui)回收(shou)站(zhan)臥式(shi)(shi)（水(shui)(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)(xing)(xing)式(shi)(shi)，見(jian)圖(tu)13.8（a），熱水(shui)(shui)(shui)回收(shou)站(zhan)立式(shi)(shi)（垂(chui)直(zhi)）布(bu)(bu)(bu)置(zhi)的形(xing)(xing)(xing)式(shi)(shi)，見(jian)圖(tu)13.8（b）。③.蒸(zheng)汽分(fen)配站(zhan)臥式(shi)(shi)（水(shui)(shui)(shui)平）布(bu)(bu)(bu)置(zhi)的形(xing)(xing)(xing)式(shi)(shi)，見(jian)圖(tu)13.9（...
1.熱水(shui)(shui)(shui)伴(ban)熱系統（圖(tu)13.2） 2.蒸(zheng)汽伴(ban)熱系統（圖(tu)13.3） ②.蒸(zheng)汽伴(ban)熱系統分(fen)配(pei)(pei)站(zhan)。 配(pei)(pei)管設計見圖(tu)13.4。蒸(zheng)汽分(fen)配(pei)(pei)站(zhan)安(an)裝(zhuang)位置(zhi)高于蒸(zheng)汽總管時，分(fen)配(pei)(pei)站(zhan)低點可不(bu)設排放冷(leng)凝水(shui)(shui)(shui)的(de)蒸(zheng)汽疏水(shui)(shui)(shui)閥系統，水(shui)(shui)(shui)平(ping)安(an)裝(zhuang)的(de)分(fen)配(pei)(pei)站(zhan)應無(wu)袋形并...
1.熱(re)水、蒸(zheng)汽伴熱(re)系統的組(zu)成(cheng) 熱(re)水、蒸(zheng)汽伴熱(re)系統包括(kuo)；熱(re)源(yuan)總(zong)管(guan)、熱(re)介質引(yin)入(ru)管(guan)、分配站、伴前管(guan)、伴管(guan)、伴后管(guan)、冷凝液（熱(re)水回(hui)水）收(shou)集站、收(shou)集站出(chu)口回(hui)流管(guan)、回(hui)流管(guan)總(zong)管(guan)。2.熱(re)水、蒸(zheng)汽伴熱(re)系統設計的一般(ban)要求 ①.伴熱(re)分配站及(ji)回(hui)收(shou)站的壓力等(deng)級應與引(yin)入(ru)管(guan)和(he)返(fan)回(hui)...
①.不(bu)銹(xiu)鋼管(guan)道是否需要伴熱應依照工藝流程圖及管(guan)道數據表。 ②.在(zai)環境(jing)溫度下，需從外(wai)部補償管(guan)內(nei)介質熱損失(shi)，以(yi)維持被輸(shu)送介質溫度的不(bu)銹(xiu)鋼管(guan)道。 ③.在(zai)輸(shu)送過程中，由于熱損失(shi)而產(chan)生凝(ning)液，并可能導致腐蝕(shi)或影響正常操作的氣體用不(bu)銹(xiu)鋼管(guan)道。&nbs...
