Hauv kev siv hauv kev lag luam, cov kav dej feem ntau xav tias yog lub voj voog zoo meej, tab sis qhov tseeb, qhov no tsis yog txhua lub sijhawm. Muaj ntau yam ua rau muaj kev hloov pauv ntawm qhov voj voog ntawm cov kav dej, thiab kev nkag siab txog cov kev hloov pauv no yog qhov tseem ceeb rau kev ntsuas qhov ntws kom raug, tshwj xeeb tshaj yog nrog cov ntsuas ntws ultrasonic.
1. Kev Tsim Khoom Siv Tau
Cov kav hlau tsis muaj qhov sib txuas, feem ntau siv rau hauv kev siv hauv kev lag luam, yog tsim los ntawm cov txheej txheem ncab txias lossis kub. Cov kav dej no feem ntau muaj txoj kab uas hla mus txog DN2000 thiab raug tso cai rau qee qib ntawm ovality (kev hloov pauv ntawm qhov puag ncig zoo meej). Qib ntawm qhov puag ncig tuaj yeem sib txawv nyob ntawm qhov zoo ntawm kev tsim khoom:
- Cov chaw tsim khoom hlau loj thiab ruaj khov feem ntau tsim cov kav dej uas muaj qhov puag ncig zoo dua.
- Cov chaw tsim khoom me me tuaj yeem tsim cov kav dej uas muaj qhov sib txawv ntau dua.
Piv txwv li, qee cov kav dej DN300 tuaj yeem muaj qhov yuam kev siab tshaj plaws txog li 5 hli. Cov kev kam rau siab no yuav tsum tau xav txog thaum tsim lossis ntsuas cov kav dej rau kev siv hauv kev lag luam.
2. Cov Kav Dej Welded thiab Cov Kav Dej Kauv
Ntxiv rau cov kav hlau tsis muaj qhov sib txuas, ntau cov kav dej thauj cov kua dej qis siv cov kav hlau welded lossis kauv-welded. Cov kav dej no feem ntau muaj qhov sib txawv ntawm ovality ntau dua piv rau cov kav hlau tsis muaj qhov sib txuas, ua rau lawv tsis sib xws hauv cov duab. Cov txheej txheem vuam nws tus kheej tuaj yeem ua rau cov kav dej deformation, tshwj xeeb tshaj yog nyob rau hauv cov kav dej loj.
Cov kav dej uas vuam thiab cov kav dej uas vuam los ntawm kauv feem ntau pheej yig dua tab sis tej zaum yuav xav tau kev saib xyuas ntxiv thaum xav tau kev ntsuas kom meej, tshwj xeeb tshaj yog rau kev ntsuas qhov ntws.
Kev cuam tshuam ntawm Ovality rau Clamp-on Ultrasonic Flow Meters
Rauclamp-on ultrasonic flow meter, qhov kev ntsuas yog cuam tshuam los ntawm lub teeb liab acoustic uas hla dhau cov kua dej hauv cov yeeb nkab. Lub sensor tau teeb tsa rau sab nraud ntawm cov yeeb nkab, yog li txhua qhov kev hloov pauv ntawm cov yeeb nkab cov duab (xws li ovality) tuaj yeem ua rau muaj ntau yam teeb meem:
- Kev kis tsis raug ntawm lub teeb liabYog tias lub yeeb nkab tsis puag ncig zoo, qhov deb ntawm lub sensor thiab cov kua dej yuav txawv raws li qhov ncig ntawm lub yeeb nkab. Qhov no tuaj yeem ua rau cov teeb liab ultrasonic mus deb sib txawv, ua rau qhov kev ntsuas tsis meej.
- Kev ntsuas tsis meej ntxivTxawm tias qhov sib txawv me me ntawm cov yeeb nkab tuaj yeem ua rau muaj qhov yuam kev hauv kev xam lub sijhawm ya, ua rau kev nyeem cov dej ntws tsis raug.
Yog tias muaj qhov oval loj heev, lub sensor yuav tsis tuaj yeem tswj tau qhov sib cuag nrog cov yeeb nkab, ua rau qhov kev ntsuas raug txo qis.
Kev cuam tshuam ntawm Ovality rau kev ntxig Ultrasonic Flow Meters
Kev ntxig ultrasonic flow meters, uas tau teeb tsa sab hauv cov yeeb nkab, kuj ntsib teeb meem vim yog qhov oval:
- Qhov chaw tsis raug ntawm lub sensorYog tias cov yeeb nkab yog oval, lub sensor yuav tsis raug tso rau qhov chaw zoo tshaj plaws rau kev ntsuas kom raug. Cov nthwv dej ultrasonic yuav tsis mus ncig ua kab ncaj lossis yuav raug cuam tshuam los ntawm kev hloov pauv ntawm cov qauv ntws, ua rau muaj qhov yuam kev.
- Kev faib tawm tsis sib xws: Qhov sib npaug ntawm cov dej ntws tuaj yeem ua rau muaj kev faib dej ntws tsis sib npaug thoob plaws qhov seem ntawm cov yeeb nkab, tshwj xeeb tshaj yog nyob rau hauv cov yeeb nkab uas muaj txoj kab uas hla loj lossis cov xwm txheej ntws nyuaj. Qhov no tuaj yeem ua rau lub teeb liab ultrasonic cuam tshuam sib txawv thoob plaws qhov seem ntawm cov yeeb nkab, ua rau qhov ntsuas tsis raug.
Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Teeb tsa nrog Ultrasonic Flow Meters
Yuav kom txo tau qhov cuam tshuam ntawm ovality ntawm kev ntsuas ntws, cov kev coj ua zoo tshaj plaws hauv qab no yuav tsum tau xav txog:
- Xaiv ib ntu ntawm cov kav dej uas muaj qhov oval tsawg kawg nkausTsis txhob muab cov yeeb nkab uas pom kev hloov pauv lossis khoov, vim tias cov no yuav ua rau kev ntsuas tsis meej.
- Kev tso chaw sensor kom raugRau ob qho tib si clamp-on thiab ntxig ultrasonic flow meters, qhov chaw sensor kom raug yog qhov tseem ceeb. Insertion sensors yuav tsum tau muab tso rau qhov twg cov dej ntws sawv cev rau tag nrho cov yeeb nkab, thiab clamp-on sensors yuav tsum tau mounted rau ntawm cov seem ntawm cov yeeb nkab uas tsawg kawg oval.
Xaus lus
Txawm hais tias cov kav dej hauv kev lag luam tsis tshua muaj puag ncig zoo meej, qhov kev hloov pauv me me ntawm cov kav dej puag ncig feem ntau tsis cuam tshuam rau kev thauj cov kua dej. Txawm li cas los xij, thaum siv cov ntsuas dej ultrasonic - tshwj xeeb tshaj yog cov hom clamp-on lossis cov hom ntxig - cov yeeb nkab ovality tuaj yeem muaj kev cuam tshuam loj rau qhov tseeb ntawm kev ntsuas. Los ntawm kev nkag siab txog cov teebmeem ntawm ovality thiab ua tib zoo xaiv cov chaw teeb tsa tsim nyog, cov lag luam tuaj yeem ua kom ntseeg tau tias kev ntsuas dej ntws txhim khu kev qha thiab raug dua.
Lub sijhawm tshaj tawm: Lub Ob Hlis-27-2025