Lub teb chaws cov qauv rau cov kav dej thermal rwb thaiv tsev tsis muaj ib daim ntawv nkaus xwb tab sis yog ib qho kev qhia dav dav raws li cov kav dej, cov ntawv thov scenarios, thiab qib engineering.
Txog niaj hnub no, cov qauv tseem ceeb hauv tebchaws tuaj yeem muab faib ua plaub yam tseem ceeb: Ua ntej yog GB / T 4272-2024, * Cov Kev Qhia Tshwj Xeeb rau Cov Khoom Siv Hluav Taws Xob thiab Cov Hluav Taws Xob *, uas ua haujlwm raws li "txoj cai lij choj" rau txhua qhov haujlwm thermal rwb thaiv tsev. Nws qhia txog cov kev cai dav dav rau kev xaiv cov khoom siv, tsim, tsim, thiab kev lees paub, thov rau cov haujlwm rwb thaiv tsev ua haujlwm ntawm -196℃thiab 850℃; nws yog qhov yuav tsum tau ua tus qauv tsim. Hais txog cov khoom lag luam tshwj xeeb, tus qauv tseem ceeb rau cov kav hlau thaiv prefabricated npaj rau kev faus ncaj qha (feem ntau hu ua "dub tsho kav") yog GB/T 29047-2021, *Prefabricated ncaj nraim faus insulated yeeb nkab thiab Fittings-Rigid Polyurethane1} Polyurethane Ua npuas ncauj nrog High Quality. Cov txheej txheem no tswj hwm peb cov txheej txheem - txheej txheej - suav nrog cov yeeb nkab steel, txheej txheej polyurethane ua npuas ncauj, thiab txheej txheej sab nraud- thiab siv rau cov xwm txheej uas muaj qhov kub thiab txias ua haujlwm ntev tsis tshaj 120℃thiab qhov kub siab tshaj tsis tshaj 130℃. Rau cov theem tsim thiab kev tsim kho, kev tiv thaiv corrosion thiab thermal rwb thaiv tsev ntawm faus steel pipelines yuav tsum ua raws li GB / T 50538-2020, *Technical Standard for Anti-corrosion and Thermal Insulation Layers of Buried Steel Pipelines*, uas siv rau faus cov kav xa dej xa tawm ntawm 50 degree. Thaum kawg, hais txog kev soj ntsuam zoo, GB / T 29046-2023, * Kev Ntsuas Cov Txheej Txheem rau Kev Ntsuas Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob rau Cov Hluav Taws Xob Hauv Nroog *, yog siv nrog rau lwm tus; nws muab cov qauv txheej txheem rau kev sim cov tsos, qauv, thiab kev ua tau zoo ntawm cov kav dej rwb thaiv tsev hais saum toj no. Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov kev tshaj tawm tshiab tshaj tawm ntawm cov qauv no siv; Piv txwv li, 2012 version ntawm GB / T 29047 tau hloov pauv los ntawm 2021 version, thiab cov qauv ntsuas tau hloov kho rau xyoo 2023. Yog li ntawd, ib tus yuav tsum txheeb xyuas tus lej tus lej thiab xyoo thaum lub sijhawm ua haujlwm engineering.