管道和管道之间的间距表

PAGE -PAGE1-1总则1.0.1本标准适用于不保温管道和保护层为镀锌铁皮或铝合金板的保温架空管道。表中数值为架空管道的最小间距。1.0.2本标准根据中国石油化工总公司标准《石油化工企业管道设计通则》（SHJ12-89）中第三章第二节管道间距的规定。并按院标《设备和管道隔热材料及其厚度选用规定》（BA2-3-9-94）中的管道保温经济厚度选用表（表-4）所规定的保温材料及其厚度进行计算的管道最小间距。1.0.3执行本标准时，尚应符合现行有关标准规定的要求。1.0.4本标准代替《管道间距表》（BA3-3-6-89）。2管道间距的确定2.0.1本标准依据机械行业标准PN2.5MPa《凸面对焊钢制管法兰》（JB/T82.1）和PN4.0MPa《凹凸面对焊钢制管法兰》（JB/T82.2）中系列1法兰外径计算管道间距。2.0.2在管架上并排布置的管道不论有无保温，净距均取50mm,法兰外缘与相邻的净距取25mm。2.0.3管道外壁或管道隔热层最突出部分，距管架或框架的支住、建筑物墙壁的净距取100mm。2.0.4并排布置的架空相邻管道，若选用不同保温材料，且介质温度不同时，可按2.0.2、2.0.3给出的净距进行计算。2.0.5有侧向位移的管道；要求保温的法兰、阀门、管道配件和管沟内并排布置的管道，应加大管道间距。3管道间距表3.0.1不保温管道间距见表3.0.1。3.0.2保温管道间距a)岩棉、硅酸铝棉复合管壳保温管道间距见表3.0.2-1。b)岩棉管壳、缝毡保温管道间距见表3.0.2-2。c)硅酸钙管壳保温管道间距见表3.0.2-3.6不保温管道间距表表3.0.1单位:mm适用于无法兰不保温管道管中心至公称δ保温厚度墙壁距离直径600500450400350300250200150100805040252015DN公称直径SDN630530480426377325273219168114896048342722DH管外径12015380330300280250230200180150120110100908080807706005301202038033031028026023020018015013011010090908067072050048012025390340310280260230210180160130120100100906106506904504501304039034032029027024022019016014012011010057059062067040043013050400350320300270250220190170140130110510550560600640350390150804103603403102902602402101801601404504805205305706103003601601004303803503203002702502202001703904204605005105405902503301901504504003803503303002802502203303604004304704805205602002902102004804304003803503303002702603003403704004404604905401502502402505104604304003803503302002402703103403804204304605101002202703005304804604304103801701902202603003303604004204505008020029035056051048046043014016018021025028032035039040044048050190320400580530510480130140150170200240280310340380400430480401803404506105605301001201301501602002302703003403803904204702516037050063058010010012013014016019023027030033037039042047020160420600680909010012012014016019023027030033037038042046015150管外径DH222734486089114168219273325377426480530630DNS公称直径DN152025405080100150200250300350400450500600公称管中心至保温厚度δ直径墙壁距离适用于有法兰不保温管道注:DN600法兰为PN2.5MPa,其余为PN4.0MPa。保温管道间距表表3.0.2-2单位:mm适用于岩棉、硅酸铝棉复合管壳≤200℃管中心至公称保温1009090807070707060605050404040δ保温厚度墙壁距离直径厚度500450400350300250200150100805040252015DN公称直径SDNδ530480426377325273219168114896048342722DH管外径1501540470430410370340310280260220210180180160160160160204048045042038034031029026022021019018016016082012050049016025404904504203803403202902602302201901801707708001204504601804050490480430400360330310280230230210200720750770120400440180505051047045040037034031029025024021063068070073010035039021080605305004704303903603403102802605806106506807001003003702201006055051048044040038035032029053055058062065068010025034026015070580550520480440410390360450490520540590610640902003002802007061057055050047044041040043047049052056060061090150280310250706506105805304904703303703904304504805205505808010024034030070670640610560520280310340370410430460500530550708022037035080700660640590250270290330350390420440490510540705020041040090720690660220240250280310340380400430470500520604019043045090750710210220230250270310330370390420460490520602518047050010078018020020022023026029032036038041045048050050201701801801902002202302502903203503804004504705005015170管外径DH222734486089114168219273325377426480530保温DNS公称直径DN152025405080100150200250300350400450500厚度公称管中心至保温厚度δ505060607070809090100100100120120120δ直径墙壁距离适用于岩棉、硅酸铝棉复合管壳≤300℃注：DN>350时保温材料料岩棉缝毡。保温管道间距表表3.0.2-3单位:mm适用于硅酸钙管壳≤150℃管中心至公称保温808080807070706060605050404040δ保温厚度墙壁距离直径厚度500450400350300250200150100805040252015DN公称直径SDNδ530480426377325273219168114896048342722DH管外径160154045042040037034031029025022021019018016016016016020404504304003803403202902502302101901801701708001105004801602540460430400380340320290260230220190190170750780110450450180405047045042040036034031027025023021020077073075011040043018050504804504304003703403102802502402106506807007301103504002108060500480450430390370340300280260580620640670690100300370220100605204904604404003803503202905305505906106406701002503402501506054052049047043041038034045049052055058060063090200300280200705805505305004704404104004304604905305505806009015028031025070620580550530490470330370390430450490510540570801002403403007063061058056052030032035038042044048050053055080802303703508067064062059025028029033035039042045048050053070502004004008069067064022024026028031034037040044046049051060401904204508072069021022023025027030033037039043045048051060251804505008074018020020022024026029031035038042044047049050201701801801902002202402502903103503804104404604905015170管外径DH222734486089114168219273325377426480530保温DNS公称直径DN152025405080100150200250300350400450500厚度公称管中心至保温厚度δ505060607080809090100100110110110110δ直径墙壁距离适用于硅酸钙管壳≤250℃保温管道间距表表3.0.2-3单位:mm适用于硅酸钙管壳≤350℃管中心至公称保温130130130130120120110110100908080707060δ保温厚度墙壁距离直径厚度500450400350300250200150100805040252015DN公称直径SDNδ530480426377325273219168114896048342722DH管外径1801560520490470440410380350320280260240230210210200190207053051048046042039036033030027025024023022090016050053019025705405104804604204003603403002802502502308508801604505002104080550530500480440410380350320290270260780820840150400470210508056053051048045042038036032030027073076079082015035044024080905805605305104704504103803503206607007207607801403004102601001006105805505304904704304103706106306706907307601402503803001501106406205905705305004704405305706006306606907201302003403202001106706406205905605304904605005305606006206606801201503103602501207106806506305905703904304605005205605806206501101002703603001207307106806606203403704004404805005405606006201008025042035013077074072069029032034038041045048051054057060090502204504001307907707402802903103403704104404705105305705909040220470450130820790250270270300320360390430450490510550580802520050050013084022024025026028031034038041044048050054056070201902202202302502602803003403804104404705005305607015190管外径DH222734486089114168219273325377426480530保温DNS公称直径DN152025405080100150200250300350400450500厚度公称管中心至保温厚度δ7070809090100110120130140140150150160160δ直径墙壁距离适用于硅酸钙管壳≤450℃续表3.0.2-3单位:mm适用于硅酸钙管壳≤550℃管中心至公称保温180180180170170160150140130120110100909080δ保温厚度墙壁距离直径厚度500450400350300250200150100805040252015DN公称直径SDNδ530480426377325273219168114896048342722DH管外径20015805905605405004804404103703303102902702502502402102090600580550520490450420380350320300280270260980200500570210259061058055052049046042039035033030029027093096020045054023040100620600570540510470440400370340320300860900920190400510240501106406105905505304904504203803603308108408709001903504802708012066064061058055052048044041