Iingenelo zeVortex Flowmeters

IiVortex flowmeters zizixhobo zokulinganisa ukuhamba komoya ngohlobo lwesantya ezisebenza ngokomgaqo weKarman Vortex Street Effect. Zisetyenziswa kakhulu kulawulo lwenkqubo yemizi-mveliso ukulinganisa ukuhamba kweegesi, ulwelo kunye nomphunga, kunye nezi nzuzo zilandelayo ziphambili:

1. Ukuchaneka koMlinganiselo oPhezulu kunye nozinzo oluqinileyo

Ukuchaneka kokulinganisa akuchaphazeleki kakhulu lutshintsho kwiiparameter eziphakathi ezifana noxinzelelo, ubushushu, kunye noxinano. Ukuchaneka kunokufikelela kwi-±0.5%R kwizinto ezimanzi, kunye ne-±1%R kwiigesi kunye nomphunga, kunye nempazamo yokuphindaphinda engaphantsi kwe-±0.2%. Ixhotyiswe ngezinto zokufumanisa i-piezoelectric okanye i-capacitive, inamandla amakhulu okulwa nokuphazamiseka kwemiqondiso, iqinisekisa idatha ezinzileyo ngexesha lokusebenza ixesha elide ngaphandle kokulinganiswa rhoqo.

2. Uluhlu olubanzi lweMidiya esebenzayo

Ingalinganisa ngaxeshanye ukuhamba kolwelo, iigesi, kunye nomphunga, njengamanzi, izisombululo ze-asidi-base, umoya, igesi yendalo, umphunga ogcweleyo, kunye nomphunga oshushu kakhulu. Ngaphandle kweendawo zoomatshini ezihambayo, ayiyi kuxinana okanye igugiswe bubuninzi bokungcola (okufana namasuntswana kunye nemicu) kwindawo ephakathi, okwenza ifaneleke kwiimeko zokusebenza ezinzima.

3. Ulwakhiwo olulula kunye neendleko zokulungisa eziphantsi

I-sensor isebenzisa uyilo oludibeneyo kwaye ixhasa iindlela zokufakela eziguquguqukayo (uqhagamshelo lwe-flange, uqhagamshelo olunemisonto, njl.njl.), isusa isidingo sokuguqulwa kwecandelo lombhobho othe tye (ezinye iimodeli ziyahambelana namacandelo amafutshane ombhobho othe tye). Ngaphandle kwezinto ezibuthathaka ezifana neerotor kunye nee-impellers, ukugcinwa kwemihla ngemihla kufuna kuphela ukuhlolwa rhoqo kokusebenza kokutywina phakathi kwe-sensor kunye nombhobho, okubangela iindleko zokusebenza kunye nokugcinwa eziphantsi kakhulu xa kuthelekiswa neemitha zokufuduka ezilungileyo ezifana neemitha zokuhamba kwe-turbine kunye neemitha zokuhamba kwegiya ezi-oval.

4. Umlinganiselo obanzi wokujika kwesantya sendlela yokuhamba kwesantya sendlela

Umlinganiselo wokujika ungafikelela kwi-1:10~1:30, nto leyo evumela ukulinganiswa ngokuchanekileyo kwamazinga okuhamba okuphakathi kuluhlu olubanzi ukusuka kwesezantsi ukuya kwephezulu. Ifanelekile kwiinkqubo zoshishino ezinotshintsho oluqhelekileyo lokuhamba, njengokutya kweekhemikhali, ukusasazwa komphunga kwisikhululo samandla, kunye nokuhanjiswa kwegesi kamasipala.

5. Iziphumo zeDijithali zokudibanisa iinkqubo ngokulula

Ixhasa iziphumo zesignali eziqhelekileyo eziquka imiqondiso ye-analog ye-4-20mA, imiqondiso ye-pulse, kunye nemiqondiso yedijithali ye-RS485 (Modbus-RTU). Ingaqhagamshelwa ngqo kwi-PLC, iinkqubo zolawulo lwe-DCS okanye amaqonga e-intanethi yezinto zezimboni ukuze kufezekiswe ukujonga ukuhamba kwamanzi okude, ukulinganisa okuqokelelweyo kunye nolawulo oluzenzekelayo, ukuhlangabezana neemfuno zokuphuculwa kwedijithali yezimboni.

6. Ubushushu obuphezulu kunye nokumelana noxinzelelo oluphezulu kwiimeko zokusebenza ezinzima

Isensor ingenziwa ngezinto ezimelana nokugqwala nezimelana nobushushu obuphezulu ezifana nentsimbi engagqwaliyo kunye neHastelloy, ezilungelelaniswa neemeko zokusebenza apho ubushushu obuphakathi buqala kwi -200℃ ukuya kwi +550℃ kwaye uxinzelelo lufikelela kwi-megapascals ezilishumi. Isetyenziswa kakhulu kumashishini asebenzisa ubushushu obuphezulu nezimelana noxinzelelo oluphezulu ezifana ne-petrochemical, i-metallurgy kunye namandla ombane.