1. Ho khoneha ha li-Ultrasonic Flowmeters bakeng sa Litharollo tsa Asiti/Alkaline
E, di-flowmeter tsa ultrasonic di ka lekanya ditharollo tsa asiti le alkaline ka katleho, empa ho tshwaneleha ha tsona ho itshetlehile haholo-holo ka kgetho ya thepa ya transducer le mofuta wa ho e kenya—mabaka a mabedi a sebetsanang ka ho toba le tlhaho ya ho senya ya maro ana. Ho fapana le di-meter tse kenellang (mohlala, di-flowmeter tsa electromagnetic tse nang le di-electrode tsa ka hare) tse behang kotsing ya ho senyeha ka lebaka la ho kopana ka ho toba le di-acid/base tse matla, di-flowmeter tsa ultrasound (haholo-holo mehlala ya clamp-on) di fokotsa ho kopana ha mokelikeli ka ho kenya di-transducer kantle ho phaephe. Bakeng sa di-flowmeter tsa ultrasonic tse moleng (moo di-transducer di kopanang le tharollo), ho sebedisa thepa e hanelang ho bola jwalo ka PTFE (polytetrafluoroethylene), ceramic, kapa Hastelloy ho netefatsa hore e tsamaellana le maro a mabifi jwalo ka sulfuric acid, hydrochloric acid, kapa sodium hydroxide. Hafeela thepa ya transducer e tshwana le ho senyeha ha tharollo mme thepa ya phaephe (mohlala, PVC, PVDF bakeng sa maro a asiti) e tsamaellana, di-flowmeter tsa ultrasound di boloka tshebetso e tsitsitseng ntle le ho senyeha.
2. Melemo ea Bohlokoa ho Feta Limithara tsa Setso bakeng sa Metsi a Senyang
Methapo ea phallo ea ultrasound e fana ka melemo e ikhethang ha e lekanya litharollo tsa asiti/alkaline, e sebetsana le lintlha tse bohloko tsa mahlale a tloaelehileng a ho lekanya:
- Ha ho na ho Hloeka ho Bakiloeng ke ho Tshoa: Ho fapana le di-flowmeter tsa mechini (mohlala, di-turbine metres) tse nang le dikarolo tse tsamayang tse senyang le ho etsa jeme, kapa di-electromagnetic metres tse nang le di-electrode tsa tshepe tse kotsing ya tlhaselo ya asiti/alkali, di-flowmeter tsa ultrasonic (clamp-on) ha di na dikarolo tse kopanang ka ho toba le tharollo. Di-in-line models di sebedisa thepa e sa sebetseng, e leng se fedisang tahlehelo ya ho nepahala e amanang le ho tshwaetswa ke mafome kapa ho hloleha ha sesebediswa.
- Ha e Angoe ke Phetisetso ea Mokelikeli: Litharollo tsa asiti le tsa alkaline li fapana haholo ka phetisetso ea motlakase (mohlala, asiti e hlapollotsoeng ea acetic e na le phetisetso e tlase ea motlakase, ha sodium hydroxide e matla e na le phetisetso e phahameng ea motlakase). Methapo ea motlakase ea motlakase e itšetlehile ka phetisetso ea metsi ho sebetsa 'me e ka' na ea hlōleha ka li-acid tse nang le phetisetso e tlase ea motlakase, empa li-flowmeter tsa ultrasonic li lekanya phallo ka ho ata ha maqhubu a molumo - phetisetso ea motlakase, viscosity, kapa metsoako ea lik'hemik'hale ea tharollo ha e sitise lipalo tsa tsona.
- Tlhokomelo e Nyenyane: Metsi a senyang hangata a baka tlhokomelo khafetsa bakeng sa li-meter tsa setso (mohlala, ho nkela li-electrode tse senyehileng sebaka kapa likarolo tsa mechini sebaka). Li-flowmeter tsa Ultrasonic, tse se nang likarolo tse tsamaeang kapa likarolo tse senyehang, li hloka feela ho hlahlojoa khafetsa ha ho hokahanngoa ha transducer kapa boemo ba lebota la phaephe, ho fokotsa nako ea ho se sebetse le litšenyehelo tsa tlhokomelo.
3. Lintlha tsa Bohlokoa tsa ho Lekanya ka Tšepahalang
Ho netefatsa tekanyo e nepahetseng le ea nako e telele ea litharollo tsa asiti/alkaline, lintlha tse tharo tsa bohlokoa li lokela ho etelloa pele:
- Ho Tsamaellana ha Thepa ea Transducer: Khetha thepa ho latela matla le mofuta oa tharollo. Mohlala, PTFE e sebetsa bakeng sa boholo ba li-acid tse matla (ntle le asiti ea hydrofluoric e matla e chesang), ha li-transducer tsa ceramic li sebetsana le litharollo tsa alkaline tse mocheso o phahameng (mohlala, sodium hydroxide ea 80°C). Qoba ho sebelisa li-transducer tsa tšepe (mohlala, tšepe e sa ruseng) bakeng sa maro a matla a senyang, kaha a tla senyeha ha nako e ntse e ea.
- Boemo le Thepa ea Phaephe: Phaephe ka boeona e tlameha ho hanela ho bola—likhetho tse tloaelehileng li kenyelletsa PVDF (bakeng sa li-acid tse matla), PVC (bakeng sa li-acid/li-base tse bonolo), kapa tšepe e koahetsoeng ka khalase (bakeng sa maro a senyang a mocheso o phahameng). Lebota la phaephe le senyehileng kapa le senyehileng le ka sotha matšoao a ultrasonic, e leng se lebisang liphosong tsa tekanyo; etsa bonnete ba hore phaephe e tiile 'me e na le bokaholimo bo boreleli ba kahare.
- Meeli ea Mocheso le Khatello: Li-acid/li-base tse matla li ka sebetsa mochesong o phahameng (mohlala, sulfuric acid ea maemo a indasteri ho 60–80°C) kapa likhatellong. Netefatsa hore sebaka sa ts'ebetso sa ultrasonic flowmeter se tsamaellana le mocheso le khatello ea tharollo—ho feta meeli ena ho ka senya li-transducer kapa ha fokotsa ho nepahala ha lets'oao. Bakeng sa lits'ebetso tsa mocheso o phahameng, khetha li-transducer tse hanelang mocheso o phahameng (mohlala, mehlala ea ceramic e lekantsoeng ho fihlela ho 150°C).
Kakaretso
Methapo ea phallo ea ultrasonic ke khetho e sebetsang le e tšepahalang bakeng sa ho lekanya litharollo tsa asiti le alkaline, ha feela thepa ea transducer e lumellana le ho bola ha mokelikeli, 'me maemo a liphaephe a fihlela litlhoko tsa mantlha. Moralo oa tsona o sa keneleng (bakeng sa mehlala ea clamp-on) kapa likarolo tse ka hare tse sa keneleng mafome, hammoho le tšireletso ea ho tsamaisa mokelikeli, li etsa hore li be betere ho feta limithara tsa setso libakeng tse senyang. Ka ho sebetsana le ho lumellana ha thepa, boemo ba phaephe, le meeli ea ts'ebetso, limithara tsa phallo ea ultrasonic li fana ka tekanyo e nepahetseng, ea tlhokomelo e tlase bakeng sa lits'ebetso tsa indasteri, lik'hemik'hale, kapa metsi a litšila a kenyeletsang maro a asiti/alkaline.
Nako ea poso: Phato-29-2025