Iimitha zokuqukuqela ezahlukeneyo zisebenza ekwandiseni ukusebenza kwenkqubo, ukuchaneka kunye nokuthembeka okuhlala ixesha elide. Kubalulekile ukujonga ama-nuances ohlobo ngalunye kunye nendlela azisombulula ngayo iimfuno ezibalulekileyo zemizi-mveliso. Fumana uhlobo lwemitha yokuhamba ukuze uhlangabezane neemfuno ezithile.
Iindidi zeemitha zokuHamba
Imitha yokuhamba ngobuninzi
Aimitha yokuhamba ngobunzima, ebizwa ngokuba yi-inertial flow meter, isetyenziselwa ukulinganisa isantya sokuhamba kobunzima bolwelo oluqukuqela kwityhubhu. Ubunzima bolwelo oluqukuqelayo ngaphaya kwendawo emiselweyo ngexesha leyunithi bubizwa ngokuba yireyithi yokuqukuqela kobunzima. Imitha yokuqukuqela yobunzima ilinganisa ubunzima kunomthamo weyunithi yexesha ngalinye (umzekelo, iikgs ngesekhondi) ethumela ngesixhobo.
Iimitha zokuhamba kweCorioliszithathwa njengezona mitha zokuhamba zichanekileyo ezinokuphinda-phinda okwangoku. Bathumela ulwelo kwiityhubhu ezingcangcazelayo kwaye babeke esweni utshintsho kumfutho wolwelo. Ulwelo oluphuma kwiityhubhu ezingcangcazelayo lubangela ukujijeka okanye ukonakala. Ukujija okunjalo kunye nokukhubazeka kuhambelana ngokuthe ngqo namazinga okuhamba kobunzima. Iimitha zeCoriolis zisebenza kuzo zombiniubunzima kunye nomlinganiselo woxinaniso, isebenziseka ngeendlela ezahlukeneyo kwimichiza, ioyile, kunye namashishini egesi. Imisebenzi yabo ebalaseleyo ekuchanekeni nasekusetyenzisweni ngokubanzi zizizathu eziphambili zokuthandwa kwazo kwiinkqubo ezintsonkothileyo zemizi-mveliso.
Uhlobo lwesithintelo
Uxinzelelo olwahlukileyo (DP) iimitha zokuhambaziye zasulungekiswa kwindaleko kwiimfuno zoshishino lwangoku, zihleli zilolona khetho luthembekileyo ekujongweni nasekulinganiseni ukuhamba. Umahluko woxinzelelo ulinganiswa ngesiseko somgaqo-siseko wokuba ubudlelwane obuthile phakathi koxinzelelo loxinzelelo oluveliswayo xa umbane uqukuqela kwizixhobo ze-throttling kunye namazinga okuhamba. Isixhobo se-throttling yinto yokunciphisa yendawo efakwe kumbhobho. Ezona zisetyenziswa kakhulu ziiipleyiti ze-orifice, imilomokwayeiityhubhu ze-venturi,isetyenziswa ngokubanzi kumlinganiselo wenkqubo yoshishino kunye nolawulo.
A imitha yendawo eguquguqukayoisebenza ngokulinganisa ukuqukuqela kolwelo olunqumla ummandla wecandelo wesixhobo ukuhluka ngokuphendula ukuhamba. Esinye isiphumo esilinganisekayo sibonisa izinga. I-rotameter, umzekelo wemitha yendawo eguquguqukayo, iyafumaneka kuluhlu olubanzi lwamanzi kwaye isetyenziswa ngokuqhelekileyo ngamanzi okanye umoya. Omnye umzekelo yi-orifice yendawo eguquguqukayo, apho ukuhamba kwamanzi okuthumela kwi-orifice kuya kuphambukisa i-tapered plunger elayishwe entwasahlobo.
I-Inferential Flowmeter
II-flowmeter ye-injini yomoyaiguqula isenzo soomatshini kwisantya esifundeka lula sokuhamba. njenge gpm, lpm, njl njl. Emva koko ulwelo oluqukuqelayo lujija iincakuba zeinjini yomoya, luvelise amandla kwincakuba kwaye lutyhale i-rotor ukuba ihambe. Isantya seinjini yomoya silingana nesantya solwelo xa isantya sokujikeleza esizinzileyo sifikelela.
Isilinganisi-manzi se-Electromagnetic
Ii-flowmeter magnetic, kwaziwa njenge "imitha yokulinganisa"okanye"i-electromag", sebenzisa intsimi ye-megnetic esetyenziswe kwityhubhu yokulinganisa, ebangela ukuba umehluko onokubakho kwisiphakamiso sokuhamba ngokukhawuleza kwesantya se-perpendicular kwimigca ye-flux. Ezi mitha zisebenza kuMthetho weFaraday we-Electromagnetic Induction, apho intsimi yamagnetic isetyenziselwa ulwelo. Emva koko umyinge wokuhamba unokumiselwa ngesiphumo sombane olinganisiweyo ukuchaneka kunye nokuqina,iimitha zokuhamba ngemagnethizidla ngokusetyenziswa kunyango lwamanzi, ekusetyenzweni kweekhemikhali, nakwimveliso yokutya nesiselo.
Animitha yokuhamba kwe-ultrasonicilinganisa isantya solwelo nge-ultrasound ukubala ukuhamba komthamo. Imitha yokuhambahamba iyakwazi ukulinganisa isantya esiphakathi ecaleni kwendlela yentsimbi ekhutshwayo ye-ultrasound ngokusebenzisa i-ultrasonic transduces. Bala umahluko kwixesha lokuhamba phakathi kwee-pulses ze-ultrasound ezantsi ukuya okanye ngokuchasene necala lokuhamba okanye ukulinganisa i-frequency shift ngokuxhomekeke kwi-Doppler Effect. Ukongeza kwipropathi ye-acoustic yolwelo, ubushushu, ingxinano, i-viscosity kunye namasuntswana axhonyiweyo nazo zizinto ezichaphazela ulwelo.imitha yokuhamba ngesantya esiphezulu.
Aimitha yokuhamba kwe-vortexisebenza kumgaqo othi "von Kármán vortex", ukujonga izinga lokuqukuqela kolwelo ngokulinganisa ukuphindaphindeka kwee-vortices. Ngokubanzi, ukuphindaphinda kwee-vortices kuhambelana ngokuthe ngqo nesantya sokuhamba. I-piezoelectric element kwi-detector yenza isignali yentlawulo ehambayo kunye ne-frequency efanayo ne-vortex. Emva koko umqondiso onjalo uhanjiswa kwitotali yokuhambisa ekrelekrele ukuze kuqhutywe ngakumbi.
Iiflowmeters zoomatshini
Imitha yokufuduswa evumayo ilinganisa umthamo wolwelo oluqukuqela kwinqanawa njengeemele okanye istopwotshi. Umyinge wokuqukuqela ungabalwa ngomlinganiselo womthamo kunye nexesha. Ukuzalisa kunye nokukhupha iibhakethi ngokuqhubekayo kuyadingeka ngenjongo yokulinganisa okuqhubekayo. Iimitha zepiston, iimitha zegiya embhoxo kunye nemitha yediski enencasa yonke yimizekelo yeemitha zokufuduswa ezilungileyo.
Ukusuka kwii-flowmeters eziguquguqukayo zoomatshini ukuya kwi-Coriolis echanekileyo kakhulu kunye neemitha ze-ultrasonic, uhlobo ngalunye lulungiselelwe ukuhlangabezana neemfuno ezithile zoshishino. Nokuba ufuna ukuphatha iigesi, ulwelo, okanye umphunga, kukho isisombululo sakho. Thatha inyathelo elilandelayo ekuphuculeni ukusebenza kakuhle kwenkqubo yakho ngokufikelela kwisikhokelo seengcaphephe.Qhagamshelana nathinamhlanje simahla, akukho-sibophelelo quote, kwaye sikuvumele sikuncede ufumane imitha flow ogqibeleleyo yokusebenza kwakho!
Ixesha lokuposa: Oct-15-2024
