Turbine flowmeter thiab electromagnetic flowmeter yog ob qho tib si kua flowmeters uas feem ntau siv hauv kev lag luam automation tswj. Yog li dab tsi yog qhov txawv ntawm ob? Junyuan flowmeter hauv qab no yuav qhia koj:
1.Qhov txawv ntawm kev ua hauj lwm hauv paus ntsiab lus:
Schematic daim duab ntawm turbine flowmeter
Lub hauv paus ntsiab lus ntawmturbine flowmeteryog qhia nyob rau hauv daim duab saum toj no. Lub turbine yog ntsia rau hauv nruab nrab ntawm cov yeeb nkab flanged, thiab ob qhov kawg tau txais kev txhawb nqa los ntawm bearings. Raws li cov kua dej dhau los ntawm cov yeeb nkab, nws tsoo lub turbine hniav, ua rau lub turbine tig. Lub rotational angular tshaj tawm ntawm lub turbine yog proportional rau cov kua ntws tus nqi, thiab cov kua ntws tsav lub turbine tig, txiav cov magnetic teb kab generated los ntawm cov hlau nplaum ruaj khov hlau nyob rau hauv lub casing, uas ua rau muaj kev hloov nyob rau hauv lub magnetic flux. Lub coil sensing xa cov cim sib nqus flux lub sijhawm hloov pauv mus rau lub preamplifier rau amplification, generates mem tes signal proportional to the flow rate, and get the flow value from circuit operation.
Schematic daim duab ntawm electromagnetic flowmeter
Lub hauv paus ntsiab lus ua haujlwm ntawmelectromagnetic flowmeteryog tsim los ntawm Faraday txoj cai ntawm electromagnetic induction. Ib khub ntawm kev tshawb nrhiav electrodes raug ntsia rau ntawm phab ntsa ntawm lub raj uas lub axis ntawm lub ntsuas raj thiab cov kab sib nqus ntawm cov hlau nplaum sib nqus yog perpendicular rau ib leeg. Thaum cov kua conductive txav raws lub ntsuas lub raj nyob rau hauv alternating magnetic teb thiab cov magnetic teb kab tsiv nyob rau hauv ib tug ntsug kev taw qhia, cov conductive kua txiav cov magnetic teb kab los tsim ib tug induced muaj peev xwm, uas yog txiav txim los ntawm ob tug nrhiav electrodes ntawm lub ntsuas raj. ntes.
2. Kev sib txawv ntawm daim ntawv thov
Txij li thaumturbine flowmeteryog nruab nrog lub turbine nyob rau hauv nruab nrab ntawm lub raj xa dej, nws tsis haum rau kev ntsuas cov kua nrog impurities lossis corrosiveness. Txwv tsis pub, lub turbine flowmeter yuav tsis ua haujlwm zoo vim yog adsorption / entanglement ntawm impurities lossis corrosion, uas yuav cuam tshuam rau lub neej kev pabcuam.
Cov khoom ntawm lubelectromagnetic flowmeterlos ntsuas qhov nruab nrab yuav tsum yog cov conductive, vim hais tias cov electromagnetic flowmeter yuav lined (rubber, PTFE, thiab lwm yam) thiab kuj yog haum rau ntsuas corrosive kua.
Yuav kom suav tau, ob lub ntsuas ntsuas muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, yog li cov neeg siv khoom yuav xaiv li cas? Yog tias koj tsis muaj qhov yuav tsum tau ua rau siab precision thiab xav tau tus nqi pheej yig, koj tuaj yeem xav txog turbine flowmeter. Nws yog ib qho tsim nyog sau cia tias txoj kab uas hla ntawm lub turbine flowmeter feem ntau yog qis dua DN200, thiab nws yuav raug kho tshwj xeeb los ntawm cov chaw tsim khoom yog tias nws ntau dua DN200. Kev ua haujlwm siab, koj tuaj yeem xaiv electromagnetic flowmeter.