Lub orifice flowmeter yog qhov yooj yim, ruaj khov, ruaj khov thiab txhim khu kev qha

Lub flowmeter muaj ntau yam kev siv. Tag nrho cov theem ib zaug ntws tuaj yeem ntsuas tau, thiab qee qhov sib xyaw-theem ntws kuj tuaj yeem siv cov khoom no. Vim yog ob-theem ntws, nws tsis tuaj yeem ntsuas qhov tseeb, thiab txawm tias dej rauj yuav tshwm sim, uas tuaj yeem ua rau cov yeeb nkab fittings puas. Yog tias siv lub phaj annular orifice, lub condensate tuaj yeem ntws tawm ntawm ntug ntawm lub phaj annular orifice. Qhov tsawg kawg nkaus ntws nto yog lub nplhaib ze rau ntawm phab ntsa sab hauv ntawm lub raj, thaum qhov tsawg kawg nkaus ntws nto ntawm tus qauv orifice phaj yog lub voj voog concentric ntawm qhov chaw ntawm lub raj. Tus nqi ntws ntawm impurities hauv cov kua dej yog qhov tsawg, thiab lawv feem ntau ntws ze rau ntawm cov yeeb nkab phab ntsa. Hom tshiab ntawm cov khoom siv throttling tau tshwm sim tas li thiab tau nrov thiab siv. kev loj hlob sai.
Lub inlet ntug ntawm lub orifice flowmeter, uas yuav tsum tau ntse thiab txoj cai-angled, tau dhau los ua lub tswb lub qhov ncauj, uas hloov cov outflow coefficient thiab ua ib tug loj yuam kev, yog li nws yuav tsum tau hloov. Nws tuaj yeem pom tau tias cov khoom no yog qhov kev xaiv zoo tshaj plaws rau kev ntsuas qhov ntws ntawm cov kua dej kub.
1. Cov txheej txheem throttling qhov chaw yog tag nrho cov hom phiaj, thiab tau lees paub los ntawm International Standards Organization. Lawv tuaj yeem muab tso rau hauv kev siv yam tsis muaj qhov ntsuas dej tiag tiag, thiab lawv tsuas yog ib qho ntawm cov ntsuas ntws;
2. Cov qauv yooj yim luam tawm, yooj yim, ruaj khov, ruaj khov thiab txhim khu kev qha hauv kev ua haujlwm, thiab tus nqi qis;
3. Nws muaj ntau yam kev siv, suav nrog tag nrho cov kua dej ib zaug (kua, roj, ncu) thiab qee qhov sib xyaw-theem ntws. Cov yeeb nkab txoj kab uas hla thiab kev ua haujlwm (kub, siab) ntawm cov txheej txheem tsim khoom tuaj yeem ntsuas tau;
4. Cov khoom kuaj pom thiab cov cuab yeej sib txawv siab tuaj yeem tsim los ntawm cov tuam txhab sib txawv nyias, uas yooj yim rau kev tsim tshwj xeeb.