Muab xam los ntawm cov yeeb nkab

Qhia kom meej rau qhov ntev hauv millimetres

Txoj kab uas hla tau nrog D1
Lwm cov taub D2
Yeeb nkab ntev L


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Muab xam los ntawm cov yeeb nkab


qhov ntim ntawm cov yeeb nkab
Qhia kom meej rau qhov ntev hauv millimetres

D1 - yeeb nkab bore
D2 - lwm cov yeeb nkab inch
L - Yeeb nkab ntev
Qhov kev pab cuam yuav xam tus nqi ntawm cov dej los yog lwm cov kua hauv cov kav dej.
Kev xam xyuas cov cua kub uas ntxiv rau ntawm tagnrho cov zis hauv lub dab thiab boiler.
Cov ntaub ntawv no xws li teev nyob hauv phau passport ntawm qhov khoom.

Yog li ntawd, cov kev pab cuam laij tag nrho cheeb tsam hauv cov nplaim yeeb nkab thiab cov yeeb nkab loj ntawm 1 ' meter '.
Deg cheeb tsam yuav pab tau kom nws xam tus nqi ntawm cov xim muaj hlau yuav tsum tau.

Tus muab xam, thov qhia lub puab thiab cov yeeb nkab inch thiab tag nrho ntev ntawm tus pipeline.
Tag nrho qhov ntev muaj nyob rau hauv millimeters.

Muab xam los ntawm cov kav dej uas zoo raws li tus qauv V=π*R1*R1*L
Muab xam lub deg loj hauv cov kav dej uas zoo raws li tus qauv P=2*π*R2*L
R1 - puab vojvoog kav
R2 - txheej vojvoog kav
L - yeeb nkab ntev


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