Pipe yog dab tsi?

Cov yeeb nkab yog lub raj hollow nrog puag ncig hla ntu rau kev xa khoom ntawm cov khoom. Cov khoom muaj xws li kua, roj, pellets, hmoov thiab lwm yam. Lo lus yeeb nkab yog siv raws li qhov txawv ntawm cov raj siv rau cov khoom siv tubular ntawm qhov ntev uas feem ntau siv rau cov kav dej thiab cov kav dej. Hauv lub vev xaib no, cov kav dej ua tau raws li qhov yuav tsum tau muaj ntawm:ASME B36.10Welded thiab Seamless Wrought Steel Yeeb Nkab thiabASME B36.19Stainless hlau yeeb nkab yuav tham txog.

Tube los yog Tube?

Hauv lub ntiaj teb ntawm cov kav dej, cov ntsiab lus ntawm cov yeeb nkab thiab cov raj yuav raug siv. Cov yeeb nkab tau raug txheeb xyuas los ntawm "Nominal Pipe Size" (NPS), nrog phab ntsa tuab txhais los ntawm "Schedule number" (SCH).

Tube yog kev cai teev tseg los ntawm nws sab nraud txoj kab uas hla (OD) thiab phab ntsa thickness (WT), qhia nyob rau hauv Birmingham hlau gage (BWG) los yog nyob rau hauv txhiab ntawm ib nti.

Yeeb Nkab: NPS 1/2-SCH 40 yog txawm rau sab nraud txoj kab uas hla 21,3 hli nrog phab ntsa thickness 2,77 hli.
Tube: 1/2 "x 1,5 yog txawm rau sab nraud txoj kab uas hla 12,7 hli nrog phab ntsa thickness ntawm 1,5 hli.

Lub hauv paus tseem ceeb siv rau lub raj yog nyob rau hauv Cov Hluav Taws Xob Hluav Taws Xob, cov kab ntsuas thiab cov kev sib txuas me me ntawm cov khoom siv xws li compressors, boilers thiab lwm yam.

Cov khoom siv rau cov yeeb nkab

Cov tuam txhab engineering muaj cov khoom siv engineers los txiav txim siab cov khoom siv los siv hauv cov kav dej. Cov yeeb nkab feem ntau yog carbon steel (nyob ntawm kev pabcuam) yog tsim los rau cov qauv ASTM sib txawv.

Carbon-steel yeeb nkab muaj zog, ductile, weldable, machinable, tsim nyog, ruaj thiab yuav luag ib txwm pheej yig dua cov yeeb nkab ua los ntawm lwm cov ntaub ntawv. Yog tias carbon-steel yeeb nkab tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm lub siab, qhov kub thiab txias, kev tiv thaiv corrosion thiab kev nyiam huv, nws yog qhov kev xaiv ntuj.

Hlau yeeb nkab yog tsim los ntawm cam khwb cia-hlau thiab ductile-hlau. Cov khoom siv tseem ceeb yog siv rau cov kav dej, roj thiab dej phwj.

Cov yeeb nkab yas tuaj yeem siv los nthuav tawm cov kua dej corrosive, thiab tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau kev tuav cov roj corrosive los yog phom sij thiab dilute ntxhia acids.

Lwm cov hlau thiab Alloys yeeb nkab ua los ntawm tooj liab, txhuas, npib tsib xee, tooj dag, txhuas thiab ntau yam stainless hlau tuaj yeem nkag tau. Cov ntaub ntawv no kuj kim heev thiab raug xaiv feem ntau yog vim lawv qhov tshwj xeeb corrosion tsis kam rau cov txheej txheem tshuaj, lawv zoo Thaum tshav kub kub hloov, los yog rau lawv tensile zog ntawm kub kub. Copper thiab tooj liab alloys yog ib txwm siv rau cov kab ntsuas, kev ua zaub mov thiab cov khoom siv hluav taws xob hloov hluav taws xob. Cov hlau tsis muaj steel yog nce siv rau cov no.

Kab Yeeb

Qee cov ntaub ntawv tau piav qhia saum toj no, tau muab tso ua ke los tsim cov kab yeeb nkab.
Piv txwv li, cov yeeb nkab carbon steel tuaj yeem ua rau sab hauv nrog cov khoom siv tuaj yeem tiv thaiv cov tshuaj tua kab mob tso cai rau nws siv los nqa cov kua dej corrosive. Linings (Teflon®, piv txwv li) tuaj yeem siv tom qab tsim cov kav dej, yog li nws muaj peev xwm tsim tau tag nrho cov yeeb nkab spools ua ntej hauv ob sab phlu.

Lwm cov khaubncaws sab nraud povtseg tuaj yeem yog: iav, ntau yam yas, pob zeb thiab lwm yam, kuj yog txheej txheej, xws li Epoxy, Bituminous Asphalt, Zink thiab lwm yam tuaj yeem pab tiv thaiv cov yeeb nkab sab hauv.

Muaj ntau yam tseem ceeb hauv kev txiav txim siab cov khoom tsim nyog. Qhov tseem ceeb tshaj plaws ntawm cov no yog siab, kub, yam khoom, qhov ntev, cov nqi thiab lwm yam.