CNG Pipeline thiab Cheebtsam
Natural gas pipelines yuav tsum tau tsim los siv seamless steel kav. Rau cov kav dej uas muaj qhov tsim siab tsawg dua 4.0 MPa, lawv yuav tsum ua raws li lub teb chaws tus qauv tam sim no GB/T 8163, uas npog cov kav dej seamless rau kev xa dej. Rau cov kav dej uas muaj qhov tsim siab siab dua lossis sib npaug rau 4.0 MPa, cov khoom siv hauv cov kav dej yuav tsum ua raws li cov qauv uas tau teev tseg hauv GB/T 14976 (stainless steel seamless kav rau cov dej thauj) los yog GB/T 5310 (seamless steel kav rau high-pressure boilers).
Tag nrho cov khoom siv thiab cov kav xa dej hauv cov chaw nres tsheb roj uas tuaj yeem cuam tshuam nrog cov pa roj carbon monoxide yuav tsum tau ua los ntawm cov khoom siv sib xws nrog cov roj nruab nrab. Qhov no ua kom muaj kev nyab xeeb thiab kav ntev ntawm tag nrho cov system.
Rau high-pressure natural gas pipelines nyob rau hauv lub chaw nres tsheb, welded kev twb kev txuas tau pom zoo. Rau kev sib txuas ntawm cov raj xa dej, cov khoom siv, thiab cov li qub, flanged, ferrule, lossis tapered xov txuas yog tsim nyog, muab kev yooj yim thiab lub zog.
Sab nraum zoov nkev pipelines yuav tsum zoo dua yog muab tso rau hauv av los yog nyob rau hauv trench systems. Thaum muab tso rau hauv av, sab saum toj ntawm cov kav dej yuav tsum yog tsawg kawg yog 0.5 meters hauv qab ntawm qhov chaw. Nyob rau hauv cov cheeb tsam uas yuav khov, cov kav dej yuav tsum tau muab tso rau hauv qab ntawm txoj kab Frost. Yog tias siv lub trench installation, kev ntsuas yuav tsum tau coj los tiv thaiv kev sib sau ntawm cov pa roj. Rau cov kav dej hauv tsev, kev teeb tsa trench kuj tau pom zoo, thiab cov trench yuav tsum tau ntim nrog cov xuab zeb nruab nrab kom tiv thaiv corrosion thiab lwm yam kev puas tsuaj.
Kev tiv thaiv corrosion rau cov kav dej faus yuav tsum ua raws li lub teb chaws tam sim no tus qauv GB / T 21447, uas muab cov lus qhia rau kev tswj kev tiv thaiv sab nraud ntawm cov kav dej steel. Qhov no ua kom muaj kev tiv thaiv mus sij hawm ntev tiv thaiv ib puag ncig thiab txhim kho tag nrho kev ncaj ncees ntawm CNG infrastructure.
