Ultrasonic flowmeters yog nrov nyob rau hauv ntau yam kev siv vim hais tias ntawm lawv cov tsis-invasive xwm thiab raug. Txawm li cas los xij, xaiv qhov zoo ultrasonic flowmeter rau koj daim ntawv thov tshwj xeeb tuaj yeem nyuaj. Nov yog qee yam yuav tsum xav txog thaum xaiv nws:
1. Flow rate range
Lawv muaj qhov dav dav dav, tab sis cov qauv sib txawv yuav muaj kev txwv sib txawv. Xav txog qhov tsawg kawg nkaus thiab siab tshaj tus nqi ntws ntawm koj daim ntawv thov thiab xyuas kom meej tias cov flowmeter koj xaiv tuaj yeem ntsuas hauv qhov ntau.
2. Txoj kab uas hla
Txoj kab uas hla ntawm cov yeeb nkab kuj tuaj yeem cuam tshuam rau kev xaiv ntawm cov no. Tej zaum nws yuav tsis haum rau cov kav dej uas muaj cov kab loj loj, thaum lwm tus tuaj yeem tsim rau cov kav dej me me. Nco ntsoov xyuas cov kev qhia tshwj xeeb ntawm cov flowmeter kom ntseeg tau tias nws tuaj yeem siv nrog txoj kab uas hla ntawm koj cov yeeb nkab.
3. Hom kua
Hom kua ntsuas kuj tuaj yeem cuam tshuam qhov kev xaiv ntawm qhov ntawd. Lawv ua haujlwm zoo tshaj plaws nrog cov kua dej uas tsis muaj viscosity thiab siab acoustic conductivity, xws li dej los yog hydrocarbons. Yog tias koj ntsuas cov kua sib txawv, nws yog ib qho tseem ceeb uas yuav tau xyuas cov kev qhia tshwj xeeb ntawm cov flowmeter kom paub tseeb tias nws haum rau cov kua.
4. Kub thiab siab
Qhov ntsuas kub thiab siab ntawm cov kua tau ntsuas kuj tseem ceeb rau kev txiav txim siab. Qee qhov flowmeter ultrasonics yuav tsis tuaj yeem ua haujlwm hauv qhov kub thiab txias lossis qhov chaw siab. Nco ntsoov xyuas cov specifications ntawm lub flowmeter kom paub meej tias nws haum rau qhov kub thiab txias ntawm koj daim ntawv thov.
5. Qhov yuav tsum tau muaj tseeb
Qhov tseeb ntawm qhov ntawd kuj yog qhov tseem ceeb rau kev txiav txim siab. Cov flowmeters sib txawv muaj qhov sib txawv ntawm qhov tseeb, thiab qhov yuav tsum tau muaj qhov tseeb yuav nyob ntawm qhov kev thov tshwj xeeb. Yog tias xav tau qhov tseeb siab, xav txog kev siv lub flowmeter nrog qib siab dua.
6. Tus nqi
Tus nqi ntawm ultrasonic flowmeter kuj yog ib qho tseem ceeb rau kev txiav txim siab. Lawv tuaj yeem sib txawv ntawm tus nqi nyob ntawm lawv cov yam ntxwv thiab cov kev qhia tshwj xeeb. Xav txog cov peev nyiaj rau koj daim ntawv thov thiab xaiv lub flowmeter uas ua tau raws li koj cov kev xav tau hauv cov peev nyiaj ntawd.
Thaum koj tau txiav txim siab txog cov xwm txheej no, nws yog ib qho tseem ceeb uas yuav tau xaiv hom kev tsim nyog ntawm ultrasonic flowmeter rau koj daim ntawv thov. Nov yog peb yam tseem ceeb ntawm qhov ntawd:
1. Transit-time flowmeters
Transit-time flowmeters siv ob lub ultrasonic sensors uas muab tso rau ntawm cov yeeb nkab sab nraud. Ib lub sensor xa cov teeb liab ultrasonic los ntawm cov kua mus rau lwm qhov sensor. Lub sijhawm nws siv rau lub teeb liab los ntawm ib lub sensor mus rau lwm qhov yog ntsuas thiab siv los xam cov nqi ntws.
Transit-time flowmeters ua haujlwm zoo tshaj plaws nrog cov kua dej huv uas tsis muaj cua npuas lossis cov khoom raug tshem tawm. Lawv kuj yog qhov zoo tshaj plaws rau cov kav dej uas muaj puv, es tsis yog tag nrho.
2. Doppler flowmeters
Doppler flowmeters siv ib qho ultrasonic sensor uas emits ib lub teeb liab ntawm ib qho zaus. Cov teeb liab no tau tshwm sim tawm ntawm cov khoom hauv cov kua, xws li cov khoom raug tshem tawm lossis cov npuas cua. Qhov zaus hloov pauv ntawm lub teeb liab cuam tshuam yog ntsuas thiab siv los xam cov nqi ntws.
Doppler flowmeters ua haujlwm zoo tshaj plaws nrog cov kua dej uas muaj cov khoom tshem tawm lossis cov npuas cua. Lawv kuj tsim nyog rau cov kav dej ib nrab.
3. Hybrid flowmeters
Hybrid flowmeters siv ob qho tib si hla-lub sij hawm thiab Doppler cov hauv paus ntsiab lus los ntsuas qhov ntws. Lawv tsim nyog rau ntau hom kua, suav nrog cov khoom uas raug tshem tawm lossis cov npuas cua. Hybrid flowmeters kuj tseem siv tau nrog cov kav dej ib nrab.
Xaiv txoj caiultrasonic flowmeterrau koj daim ntawv thov yuav tsum tau ua tib zoo xav txog ntau yam, suav nrog cov nqi ntws ntau, txoj kab uas hla ntawm cov yeeb nkab, hom kua, qhov kub thiab txias, qhov yuav tsum tau muaj, thiab tus nqi.
Thaum cov xwm txheej no tau raug txiav txim siab, hom flowmeter tsim nyog yuav tsum raug xaiv raws li cov xwm txheej tshwj xeeb ntawm koj daim ntawv thov. Kev txhim kho kom raug thiab kev saib xyuas ntawm lub flowmeter kuj tseem ceeb los xyuas kom meej thiab txhim khu kev ntsuas nyob rau lub sijhawm.