Tunlai pipeline engineering-a thermal insulation leh conveying equipment pawimawh tak a nih angin, insulated steel pipe hi petroleum, chemical, leh heating industry-ah te hman a ni nasa hle. An hnathawh dan hian system himna leh energy efficiency a nghawng nghal vek a ni. Product quality leh project rintlak a nih theih nan insulated steel pipe siam leh pawm chu a kaihhnawih implementation standards zawm tlat a ngai a ni.
Ka ram chhunga insulated steel pipe hmanna tur tehfung ber chu GB/T 29047{{1}2012, "High{2}}Density polyethylene outer sheath pipe, polyurethane foam prefabricated direct-buried insulated pipe" leh CJ/T 114{5}2017, "high{17, Outer sheath pipe, polyurethane foam plastic prefabricated direct-buried insulated pipe leh fittings te." Heng standard te hian steel pipe material, insulation layer structure, outer sheath performance, leh technical requirement zawng zawng te chipchiar taka tarlanna a pe a ni. Entirnan, steel pipe te hi a tlangpuiin seamless emaw spirally welded emaw an ni a, chu material chuan pressure bearing capacity leh corrosion resistance a awm theih nan GB/T 8163 emaw GB/T 9711 standards a zawm tur a ni. Insulation layer hi a tlangpuiin rigid polyurethane foam atanga siam a ni a, thermal conductivity hniam tak leh compressive strength sang tak nei a ni. A thickness leh density hian design mamawh a tlin a ngai a, chu chuan heat loss a tih tlem theih nan leh steel pipe a venghim tur a ni. Outer sheath hi high-density polyethylene (HDPE) hmanga siam a ni fo a, khaw lum leh khaw vawt laka invenna tha tak leh mechanical strength a pe thei bawk. Standards hian a nghawng dan leh environment stress cracking laka a do theihna leh a do theih lohna chu chiang takin a tarlang a ni.
Chu bakah, international standards ISO 23940:2019, "prefabricated insulated piping systems" te chuan export products te reference a pe a, material compatibility leh long-Term service life a ngaih pawimawh hle bawk. Engineering application-ah chuan scenario bik a zirin standard thlan a ngai a ni. Entirnan, khawpui lumna system-te chuan CJJ/T 81-2013, "Technical Specification for Direct Direct Buried Hot Water Pipelines for Urban Heating" tih a kawk thei a, petrochemical industry chuan API emaw ASTM standard khauh zawk a zawm thei thung.
Insulated steel pipe-a industry standard khauh taka zawm hian piping system-a hun rei tak chhunga a dinhmun nghet tak a enkawl mai bakah, energy efficiency a ti sang a, enkawlna senso pawh a ti tlem bawk. Technological lama hmasawnna nen chuan standards chu a tha zawkin a siam thei dawn a, hei hian insulated steel pipe siam chhuahna chu efficiency leh environment friendliness nasa zawk lam hawiin a tichak dawn a ni.
