Flow Meter Differential Pressure Hom

Differential siab flowmeter yog ib qho cuab yeej uas xam cov ndlwg npaum li cas raws li qhov sib txawv siab tsim los ntawm kev sib cuam tshuam ntawm cov khoom siv ntsuas ntws tau nruab rau hauv cov kav dej thiab cov kua dej, cov dej uas paub txog, thiab qhov ntev geometric ntawm cov cuab yeej tshawb nrhiav thiab cov kav dej.
Qhov sib txawv siab flowmeter muaj cov cuab yeej tseem ceeb (nrhiav tivthaiv) thiab cov khoom siv thib ob (differential siab converter thiab flow display instrument). Qhov sib txawv siab ntws ntsuas feem ntau yog cais nyob rau hauv daim ntawv ntawm kev kuaj xyuas cov khoom, xws li orifice flow meters, Venturi flow meters, uniform velocity tube flow meters, Pitot tube txoj cai Pitot bar flow meters, thiab lwm yam.
Cov khoom siv thib ob suav nrog ntau yam khoom siv hluav taws xob, hluav taws xob, thiab hluav taws xob sib xyaw ua ke sib txawv ntawm qhov ntsuas siab, qhov sib txawv siab transmitters, thiab cov twj tso kua mis ntws. Nws tau tsim los rau hauv chav kawm loj ntawm cov cuab yeej nrog qib siab ntawm kev tsim qauv (serialization, generalization, thiab standardization) thiab ntau yam kev qhia tshwj xeeb. Nws tuaj yeem ntsuas qhov ntsuas dej ntws thiab lwm yam ntsuas (xws li siab, qib, ntom, thiab lwm yam).
Kev tshawb nrhiav cov khoom sib txawv ntawm qhov sib txawv siab ntws ntsuas tuaj yeem muab faib ua ntau pawg raws li lawv txoj haujlwm ua haujlwm: throttling ntaus ntawv, hom hydraulic tsis kam, hom centrifugal, dynamic siab lub taub hau hom, dynamic siab lub taub hau nce hom, thiab hom dav hlau.
Cov ntawv xeem tuaj yeem muab faib ua ob pawg raws li lawv cov qib kev ntsuas: tus qauv thiab tsis yog tus qauv.
Lub npe hu ua cov qauv ntsuas qhov ntsuas tuaj yeem txiav txim siab lawv cov txiaj ntsig ntws thiab kwv yees ntsuas qhov yuam kev ntev npaum li lawv tau tsim, tsim, teeb tsa, thiab siv raws li cov ntaub ntawv txheej txheem, yam tsis tas yuav tsum muaj kev ntsuas qhov tseeb.
Cov ntawv xeem uas tsis yog qauv yog cov uas tsis muaj kev loj hlob thiab tseem tsis tau suav nrog cov qauv thoob ntiaj teb. Differential siab flowmeter yog hom flowmeter uas siv dav tshaj plaws, nrog rau nws qhov kev siv qib ua ntej ntawm ntau yam twj paj nruag. Vim qhov tshwm sim ntawm ntau yam tshiab ntws ntsuas, lawv cov feem pua ​​​​ntawm kev siv tau maj mam txo, tab sis lawv tseem yog hom tseem ceeb tshaj plaws ntawm cov ntsuas ntsuas tam sim no.
Cov mis rau cov kua ntim ntws ntawm qhov sib txawv siab flowmeter yog:
V=aA √ 2/j (pq)
V - Volume
J - Cov kua dej ntom ntom
A - Flow coefficient, muaj feem xyuam rau txoj kev ntsuas siab thiab kev tshaj tawm tshaj tawm ntawm cov channel loj
A - Qhov chaw qhib ntawm lub phaj phaj
Pq - Siab sib txawv