Isikhathi sokulinganisa sama-flowmeter e-ultrasonic aqiniswanga futhi kumele sinqunywe ngokusekelwe ekuhlanganisweni kwezimo zokusetshenziswa, imithethonqubo yemboni, izidingo zokunemba kokulinganisa, kanye nokuqina kwemishini. Ngokuvamile siwela ezigabeni ezimbili: "izikhawu ezinconywayo ezijwayelekile" kanye "nezimo ezikhethekile zokuqalisa."
I. Izikhawu Zokulinganisa Ezijwayelekile Ezinconywayo (Ngokusekelwe Ekuzinzeni Kokusebenza)
Ngokuya ngokuqina kwesimo sesicelo, izikhawu zokulinganisa ezijwayelekile zivame ukuhlukaniswa kanje:
| Isimo Sesicelo | Isikhawu Sokulinganisa Esinconyiwe | Isizathu Esiyinhloko |
|---|---|---|
| Izinqubo ezibalulekile zezimboni (isb., ukudla okusabela kwamakhemikhali, ukulinganisa amandla ukuze kuhlalwe) | Iminyaka eyi-1–2 | Kuhilela ukuphepha kokukhiqiza kanye nokubalwa kwezindleko, okudinga ukunemba okuphezulu kokulinganisa (ngokuvamile ±1%–±2%), okudinga ukuqinisekiswa njalo. |
| Ukuqapha izinsiza zikamasipala (isib. izibalo zokugeleza kwamanzi/indle, amanzi ajikelezayo e-HVAC) | Iminyaka emi-2–3 | Izidingo zokunemba okumaphakathi (±2%–±3%) ezinezimo zokusebenza ezizinzile, kodwa kudingeka ukuhlolwa kokuhambisana kwedatha njalo. |
| Ukuqapha inqubo evamile (isb., amanzi okupholisa imishini, ukudluliselwa kwezinto ezingabalulekile) | Iminyaka emi-3–5 | Igxila "ekuqapheni isimo" ngezimfuneko zokunemba eziphansi (±3%–±5%), okuvumela izikhawu ezinde. |
II. "Izimo Ezikhethekile Zokubangela" Ezidinga Ukulinganiswa Kwasekuqaleni
Ukulinganisa noma ukuqinisekisa kufanele kwenziwe ngokushesha uma kwenzeka noma yikuphi okulandelayo, noma ngabe isikhathi esijwayelekile asikafinyelelwa:
- Ukuguquguquka okungavamile kwedatha yokulinganisa
Uma inani elibonisiwe le-flowmeter lingafani kakhulu nezimo zokusebenza zangempela (isb., imvamisa yephampu, ingcindezi yephayiphi, amapharamitha enqubo ephezulu/ephansi) — isibonelo, iphampu enokugeleza okulinganiselwe okungu-100m³/h kodwa imitha ikhombisa njalo u-120m³/h noma u-80m³/h ngaphandle kwesizathu esizwakalayo — ukungalungi kahle kwenzwa noma ukuzulazula kwamapharamitha kungaba yimbangela, kudinga ukulinganiswa ukuze kutholakale izinkinga. - Ukuchayeka kwemishini ezimweni ezimbi kakhulu noma ukuphazamiseka ngokomzimba
- Ukudlidliza kwephayiphi, umthelela, noma ukufuduka okunciphisa ukunamathela kwenzwa ye-clamp-on.
- Izinguquko ezinkulu ezingazelelwe ekushiseni noma ekuqineni kwe-viscosity yento elinganisiwe (isb., kusukela endaweni ezungezile kuya ngaphezu kuka-100°C) noma ukwanda kokungcola/amabhamuza.
- Ukuguquguquka kwamandla kagesi, ukushaya kombani, noma umswakama ophezulu okungathinta izifunda zangaphakathi noma ukunemba kwemodyuli yokulinganisa.
- Ngemva kokususwa/ukufakwa kabusha kwenzwa
Izinzwa ze-Clamp-on zithembele ekuthinteni okuqinile nengaphandle lepayipi (okuvikelwe nge-ejenti/ama-clamp okuxhumanisa). Ukuzisusa nokuzifaka kabusha (isb., ukuze kulungiswe noma kuhlolwe ipayipi) kungashintsha indawo, i-engeli, noma ingcindezi yokuxhumana, okudinga ukulungiswa kabusha ukuqinisekisa ukunemba. - Imithethonqubo yemboni noma izidingo zokuhlolwa kwezimali
Izimboni ezithile (isb., uwoyela, igesi, ukudla, imithi) zingaphansi kwezindinganiso zikazwelonke eziphoqelekile noma ukuhlolwa kwabantu besithathu, okudinga ukulinganiswa ngezikhathi ezithile (isb., ngaphambi kokuhlolwa kokuphepha kwaminyaka yonke) ukuqinisekisa ukuhambisana nemithethonqubo (isb., uMthetho we-Metrology waseShayina wezinsimbi zokuxazulula ukuhweba). - Ukuguga kwemishini noma ukulungiswa kwayo ngemva kokuguga
Ama-flowmeter asebenze iminyaka engaphezu kwemi-5, noma lawo anezingxenye eziyinhloko ezishintshiwe (isb., ibhodi eliyinhloko, izinzwa), angase abhekane nokuzulazula kwezingxenye futhi adinge ukulinganiswa ukuze kubuyiselwe ukunemba.
III. Izindlela Zokulinganisa Nokucatshangelwa
- Izindlela zokulinganisa ezivamile
- Ukulinganisa okuqhathanisayo endaweni: Ukusebenzisa i-flowmeter ejwayelekile ephathekayo (isb., i-ultrasonic noma i-electromagnetic flowmeter ephathekayo) ukukala ipayipi elifanayo, ukuqhathanisa ukuphambuka (okulula futhi okungabizi kakhulu ezimweni eziningi zezimboni).
- Ukulinganiswa kwelebhu: Ukuthumela i-flowmeter esikhungweni se-metrology esivunyelwe yi-CNAS ukuze ilinganiswe ngokugcwele kumadivayisi okugeleza ajwayelekile (ukunemba okuphezulu, okufanelekela ukuxazululwa kwezentengiselwano noma izinqubo ezibalulekile).
- Izindlela zansuku zonke "zokuqinisekisa okulula"
Uma kungekho ukulinganiswa okusemthethweni, ukuhlolwa okulula kusetshenziswa "indlela yevolumu engaguquki yepayipi" kungenziwa: Vala amavalvu angenhla/phansi komfula, urekhode ububanzi bepayipi, ubude, nesikhathi sokugcwalisa ipayipi, bese uqhathanisa ukugeleza okungokwethiyori nokufundwa kwemitha (ukuze kubhekwe ngokuningiliziwe kuphela, hhayi ukufaka esikhundleni sokulinganiswa okusemthethweni).
Isifinyezo
Isikhathi sokulinganisa sama-flowmeter e-ultrasonic asebenza nge-clamp kufanele sibe "ngokusekelwe ezidingweni": iminyaka eyi-1-2 yezimo ezibucayi, iminyaka emi-2-3 yokusetshenziswa okuvamile, kanye neminyaka emi-3-5 yezinhlelo zokusebenza ezingezona ezibucayi. Kufanele futhi silungiswe ngokuguquguqukayo ngokusekelwe ezimweni ezikhethekile ezifana nokungalingani kwedatha, ukuphazamiseka kwemishini, noma izidingo zomthetho. Ukulinganisa okuvamile kuqinisekisa ukunemba kokulinganisa, kuthola amaphutha angaba khona kusenesikhathi, futhi kwandise isikhathi sokuphila kwemishini.
Isikhathi sokuthunyelwe: Septhemba-04-2025