Ii-gear flowmeters luhlobo lwe-positive displacement flowmeter elinganisa ukuhamba kolwelo ngokubala inani lokujikeleza kwee-precision-machined gears ngaphakathi kwi-meter. Ulwelo oludlula kwi-meter luqhuba ii-gear ukuba zijikeleze, kwaye ukujikeleza ngakunye kuhambelana nomthamo omiselweyo wolwelo, okuvumela ukulinganiswa okucokisekileyo okuphezulu. Zisetyenziswa kakhulu kwiimeko ezifuna ukulinganiswa ngokuchanekileyo kwe-viscous media, ezineempawu eziphambili ezilandelayo:
1. Ukuchaneka komlinganiselo ophezulu kunye nokuphindaphinda okugqwesileyo
Umgaqo wokulinganisa usekelwe kwimitha yokutshintsha okusisigxina, ngoko ke ukuchaneka akuchaphazeleki kakhulu yisantya sokuhamba kolwelo, uxinzelelo kunye notshintsho lwe-viscosity. Ukuchaneka kokulinganisa okuqhelekileyo kunokufikelela ku-±0.2%~±0.5%R, kwaye impazamo yokuphindaphinda ingaphakathi ku-±0.1%. Olu phawu lwenza ukuba ilungele iimeko zokuhlawula urhwebo ezifana neoyile ecociweyo, ioyile yokuthambisa, kunye nemitha ye-reagent yeekhemikhali enexabiso eliphezulu.
2. Ukuziqhelanisa okunamandla neendaba ezixineneyo
Ngokungafaniyo nee-flowmeters zohlobo lwe-velocity (umz., ii-vortex, ii-electromagnetic flowmeters) ezichaneka ngazo xa ulwelo lukhula, ii-gear flowmeters zisebenza ngcono xa zilinganisa i-high-viscosity media. Zinokulinganisa ngokuchanekileyo ulwelo olune-viscosity ukusuka kwi-10 ukuya kwi-1,000,000 mPa·s, ezifana ne-oyile enzima, i-resin, isiraphu, i-grease, kunye ne-polymer solutions, kwaye zifanelekile kwii-medias ezine-uncommon encinci ngaphandle kokuchaphazela uzinzo lokulinganisa.
3. Ulwakhiwo oluncinci kunye nokumelana noxinzelelo oluphezulu
Izinto zangaphakathi zilula kwaye zincinci, azinazo iindlela zokudlulisa ezintsonkothileyo. Umzimba wemitha udla ngokwenziwa ngentsimbi engagqwaliyo okanye ngentsimbi ephoswe ngesinyithi, kwaye unokumelana noxinzelelo oluphezulu lokusebenza (ukuya kuthi ga kwi-6.4 MPa okanye ngaphezulu kwiimodeli ezenzelwe wena). Ifanelekile ukufakwa kwiindawo ezimxinwa kunye neenkqubo zemibhobho enoxinzelelo oluphezulu, ezifana neesekethe zeoyile ze-hydraulic kwizixhobo zoshishino kunye nemibhobho yokuhambisa ipetroli enoxinzelelo oluphezulu.
4. Umlinganiselo wokujikeleza okubanzi kunye nokusebenza okuzinzileyo kumazinga okuhamba kwamanzi aphantsi
Umlinganiselo wokujika ungafikelela kwi-1:10~1:50, nto leyo enokulinganisa ngokuchanekileyo zombini iimeko zokuhamba kwamanzi aphezulu kunye neemeko zokuhamba kwamanzi aphantsi. Ingakumbi kwiimeko zokuhamba kwamanzi aphantsi apho ezinye iimitha zokuhamba kwamanzi kunzima ukuzilinganisa ngokuzinzileyo, iimitha zokuhamba kwamanzi zegiya zisenokugcina ukuchaneka kokulinganisa okuphezulu, nto leyo ezenza zifaneleke ukulinganisa ngokuchanekileyo kunye nokulinganisa okuncinci okuqhubekayo kwimizi-mveliso yamakhemikhali, ukutya kunye namayeza.
5. Uvakalelo oluphantsi kwiimeko zemibhobho ephezulu nesezantsi
Akukho mfuneko ingqongqo yamacandelo emibhobho athe tye ngexesha lokufakelwa. Ngokungafaniyo nee-electromagnetic okanye ii-vortex flowmeters ezifuna amacandelo emibhobho amade athe tye ukuze kuzinziswe intsimi yokuhamba kwamanzi, ii-gear flowmeters zingafakelwa kufutshane neengqiniba, iivalvu kunye nezinye izixhobo zemibhobho, nto leyo enciphisa kakhulu ubunzima bokufakelwa kwindawo kwaye igcine indawo yoyilo lwemibhobho.
6. Iimfuno zolondolozo eziphezulu kakhulu
Iigiya ezicociwe ngomatshini zincinci kakhulu. Ukuba ulwelo luneenxalenye ezinkulu okanye ukungcola, kulula ukubangela ukuguguleka kwegiya, ukuxinana okanye umonakalo. Ke ngoko, kuyimfuneko ukufaka isihluzi esichanekileyo phezulu kwemitha. Ukongeza, ukugcinwa rhoqo (njengokutshintsha iindawo zokuvala kunye neoyile yokuthambisa) kuyafuneka ukuqinisekisa ukuqina kunye nokuguquguquka kokujikeleza kwegiya, okubangela iindleko eziphezulu zokusebenza kunye nokugcinwa kwexesha elide xa kuthelekiswa nee-flowmeters ezingahambelaniyo.
Ixesha leposi: Disemba-30-2025