Yuav ua li cas cov xwm txheej yuav tsum muaj qhov sib txawv siab flowmeter raws li qhov xwm thiab lub xeev ntawm cov kua dej?
Ib qho kev sib txawv siab flowmeter uas siv lub tshuab throttling feem ntau yog tsim los ntawm cov cuab yeej throttling uas hloov cov dej ntws mus rau hauv lub teeb liab sib txawv thiab lub ntsuas qhov sib txawv uas ntsuas qhov sib txawv ntawm qhov sib txawv thiab qhia tus nqi ntws. Cov cuab yeej throttling ntsia tau rau hauv cov raj xa dej kuj tseem hu ua ""Primary device", uas suav nrog throttling qhov chaw, lub siab noj cov khoom siv thiab cov kav dej ncaj nraim rau pem hauv ntej thiab nram qab. siab transmitters thiab ntws totalizers.
Thaum siv cov txheej txheem throttling, cov xwm txheej hauv qab no yuav tsum tau ua raws li qhov xwm txheej thiab lub xeev ntawm cov kua dej:
1. Cov kua dej yuav tsum tau ntim cov yeeb nkab thiab cov twj throttling, thiab ntws los ntawm cov yeeb nkab tsis tu ncua.
2. Cov kua dej yuav tsum yog cov kua Newtonian, uas yog, lub cev thiab thermodynamically homogeneous, ib theem, lossis tuaj yeem suav tau tias yog ib theem, suav nrog cov roj sib xyaw, cov kev daws teeb meem, thiab cov colloids nrog cov khoom tawg me dua 0 .1 microns. Uniformly dispersed khoom particles tsis ntau tshaj 2 feem pua (cov khoom loj), los yog uniformly dispersed cua npuas tsis ntau tshaj 5 feem pua (ntim cov khoom) nyob rau hauv cov kua kuj yuav xam tau tias yog ib-theem kua, tab sis qhov nruab nrab ceev yuav tsum tau noj.
3. Tsis muaj kev sib tshuam thaum cov kua dej ntws los ntawm cov tswvcuab throttling.
4. Cov dej ntws tsis hloov lossis hloov maj mam dhau sijhawm.
5. Ua ntej cov kua dej ntws los ntawm cov throttling piece, cov kwj dej yog ib qho uas tsis yog swirl flow parallel mus rau axis ntawm cov yeeb nkab.
