Izici ze-Gear Flowmeters

Ama-gear flowmeter awuhlobo lwe-positive displacement flowmeter ekala ukugeleza koketshezi ngokubala inani lokujikeleza kwamagiya akhiwe ngokunemba ngaphakathi kwemitha. Uketshezi oludlula kumitha luqhuba amagiya ukuthi ajikeleze, futhi ukujikeleza ngakunye kuhambisana nomthamo oqondile woketshezi, okuvumela ukulinganisa okuqongelelekayo okunembe kakhulu. Asetshenziswa kabanzi ezimweni ezidinga ukulinganisa okunembile kwemidiya egobile, enezici ezilandelayo eziyinhloko:

1. Ukunemba okuphezulu kokulinganisa kanye nokuphindaphinda okuhle kakhulu

Isimiso sokulinganisa sisekelwe ekulinganisweni kokuthutha okungaguquki, ngakho-ke ukunemba akuthinteki kakhulu yizinga lokugeleza koketshezi, ingcindezi kanye noshintsho lwe-viscosity. Ukunemba okuvamile kokulinganisa kungafinyelela ku-±0.2%~±0.5%R, futhi iphutha lokuphindaphinda lingaphakathi kuka-±0.1%. Lesi sici sikwenza kube kuhle kakhulu ezimweni zokuxazulula ukuhweba ezifana namafutha acwengisisiwe, uwoyela wokugcoba, kanye nokulinganisa kwamakhemikhali anenani eliphezulu.

2. Ukuzivumelanisa nezimo okunamandla nemidiya ene-viscosity ephezulu

Ngokungafani nama-flowmeter ohlobo lwejubane (isb., ama-vortex, ama-flowmeter kagesi) okuchaneka kwawo kwehla ngokwanda kwe-fluid viscosity, ama-flowmeter egiya asebenza kangcono lapho elinganisa imidiya ene-viscosity ephezulu. Angalinganisa ngokunembile uketshezi olune-viscosity esukela ku-10 kuya ku-1,000,000 mPa·s, njenge-oyela esindayo, i-resin, isiraphu, amafutha, kanye nezixazululo ze-polymer, futhi afaneleka kuma-media aqukethe inani elincane lokungcola ngaphandle kokuthinta ukuzinza kokulinganisa.

3. Isakhiwo esincane kanye nokumelana nokucindezela okuphezulu

Izingxenye zangaphakathi zilula futhi zincane, azinazo izindlela zokudlulisa eziyinkimbinkimbi. Umzimba wemitha uvame ukwenziwa ngensimbi engagqwali noma insimbi ephonswe ngensimbi, futhi ungamelana nokucindezela okuphezulu kokusebenza (kufika ku-6.4 MPa noma ngaphezulu kumamodeli enziwe ngokwezifiso). Ifanele ukufakwa ezindaweni ezincane kanye nezinhlelo zamapayipi anomfutho ophezulu, njengezisekelo zikawoyela we-hydraulic emishinini yezimboni kanye namapayipi okulethwa kukaphethiloli anomfutho ophezulu.

4. Isilinganiso sokujika okubanzi kanye nokusebenza okuzinzile ngamanani okugeleza aphansi

Isilinganiso sokujika singafinyelela ku-1:10~1:50, okungalinganisa ngokunembile kokubili izimo zokugeleza okuphezulu kanye nezimo zokugeleza okuphansi. Ikakhulukazi ezimweni zezinga lokugeleza eliphansi lapho amanye ama-flowmeter kunzima ukuwalinganisa ngokuzinzile, ama-flowmeter egiya asengagcina ukunemba okuphezulu kokulinganisa, okwenza afanelekele ukuhlanganiswa okunembile kanye nokulinganisa okuqhubekayo kokugeleza okuncane embonini yamakhemikhali, yokudla kanye neyokwelapha.

5. Ukuzwela okuphansi ezimweni zamapayipi angenhla nangezansi

Akukho mfuneko eqinile yezingxenye zamapayipi aqondile ngesikhathi sokufakwa. Ngokungafani nama-flowmeter e-electromagnetic noma e-vortex adinga izingxenye zamapayipi ezinde eziqondile ukuze kuqiniswe insimu yokugeleza, ama-flowmeter egiya angafakwa eduze kwezindololwane, ama-valve nezinye izesekeli zamapayipi, okunciphisa kakhulu ubunzima bokufakwa endaweni futhi konge isikhala sokuhlelwa kwamapayipi.

6. Izidingo zokulungisa eziphakeme kakhulu

Izimbobo zegiya ezisebenza ngomshini oqondile zincane kakhulu. Uma uketshezi luqukethe izinhlayiya ezinkulu noma ukungcola, kulula ukubangela ukuguguleka kwegiya, ukuminyana noma umonakalo. Ngakho-ke, kuyadingeka ukufaka isihlungi esinembile kakhulu phezulu kwemitha. Ngaphezu kwalokho, ukulungiswa okuvamile (njengokufaka izingxenye zokuvala kanye namafutha okugcoba) kuyadingeka ukuqinisekisa ukuqina nokuguquguquka kwamagiya, okuholela ezindleleni eziphezulu zokusebenza nokugcinwa kwesikhathi eside uma kuqhathaniswa nama-flowmeter angathintani.