Limithara tsa phallo ea ultrasound li fana ka melemo le mefokolo e ikhethang, e leng se etsang hore li lokele lits'ebetso tse itseng ha li ntse li hloka lintho tse lokelang ho nahanoa ho tse ling. Ka tlase ke tlhahlobo e qaqileng ea melemo le mathata a tsona:
Melemo ea Limithara tsa Phallo ea Ultrasonic
1. Tekanyo e sa Keneleng
Ha ho Phetoho ea Phaephe:
E kentswe kantle leboteng la phaephe, ho qoba tshitiso ya phallo ya mokelikeli. Sena se fedisa tahlehelo ya kgatello, dikotsi tsa ho thibana, kapa tshenyo ya mithara e bakwang ke maro a senyang/a kgopameng.
Ho kenya habonolo:
E fokotsa litšenyehelo tsa ho kenya le ho hlokomela, haholo-holo bakeng sa lipeipi tse bophara bo boholo moo limithara tsa setso li turang.
2. Tšebeliso e pharaletseng
Metsi a Fapaneng: E loketse metsi a hloekileng, likhoerekhoere, marotholi, likhase le lintho tse senyang (hafeela mokelikeli o fetisa maqhubu a ultrasound).
Ho Lokela ha Bophara bo Boholo:
E theko e tlaase haholo bakeng sa liphaephe tse fetang 300 mm, moo li-flowmeter tse ling (mohlala, li-orifice plates) li sa sebetseng.
3. Ho nepahala le ho nepahala ho hoholo
Ho nepahala:
E ka fihlella ±0.5% ho isa ho ±1% maemong a matle (mohlala, phallo e tsitsitseng, maro a hloekileng), a bapisoang le li-mechanical metres tsa boleng bo holimo.
Karolelano e Pharaletseng ea ho Fokotsa:
Litekanyo li phalla ho tloha lebelong le tlase ho ea ho le phahameng ntle le liphoso tse kholo.
4. Bokgoni ba ho Lekanya bo Feto-fetohang
Phallo ea Litsela Tse Pedi: E lekanya phallo mahlakoreng ka bobeli, e leng molemo bakeng sa lits'ebetso tse kang marangrang a kabo ea metsi kapa lits'ebetso tsa lik'hemik'hale.
Ha ho na ho itšetleha ka khatello/ho tsitsa:
Khatello ea mokelikeli kapa viscosity ha e angoe haholo ke li-meter tsa mechini (mohlala, li-meter tsa turbine).
5. Likarolo tsa Dijithale le tse Bohlale
Ts'ebetso e Tsoetseng Pele ea Matšoao:
E sebelisa theknoloji ea dijithale (mohlala, DSP) ho sefa lerata le ho ntlafatsa botsitso ba tekanyo.
Ho Kopanya Lintlha: Ho hokela habonolo ho li-PLC kapa litsamaiso tsa SCADA bakeng sa ho beha leihlo le ho ngola lintlha hole.
Mathata a Methapo ea Phallo ea Ultrasonic
1. Ho Amohela Maemo a Metsi le a Liphaephe
Pherekano/Li-bubble/Likaroloana:
Pherekano e feteletseng, dipululana tsa khase, kapa dikarolwana tse tiileng (mohlala, ka hara dikgwerekgwere) di ka hasanya matshwao a ultrasound, tsa fokotsa ho nepahala kapa tsa baka ho hloleha ha tekanyo.
Litlhoko tsa Phaephe:
E hloka likarolo tse telele tse otlolohileng (hangata bophara ba liphaephe tse 10-20 holimo le tlase) ho netefatsa phallo e ts'oanang, e leng se ka bang thata libakeng tse patisaneng.
2. Thempereichara le Thepa ea Molumo
Ho Itšetleha ka Mocheso:
Lebelo la maqhubu a ultrasound le fapana ho latela mocheso oa mokelikeli (mohlala, ± 0.5%/°C bakeng sa metsi), ho hloka puseletso ea mocheso bakeng sa ho nepahala ho hoholo.
Ho Fokotsa Molumo:
Metsi a nang le monya o phahameng oa molumo (mohlala, metsi a viscous kapa a nang le lintho tse ngata tse tiileng) a ka fokolisa matšoao, a fokotsa sebaka sa tekanyo.
3. Ho Hlophisa le ho Lekanya Mathata
Ho Lokisa Hantle:
Li-transducer li lokela ho beoa sebakeng se nepahetseng (mohlala, sekhutlo se nepahetseng le sebaka se nepahetseng) ho netefatsa hore maqhubu a ultrasound a feta ka har'a mokelikeli ka katleho. Ho se lumellane hantle ho baka liphoso tsa tekanyo.
Liphephetso tsa ho Lekanya:
Ho lekanya tšimo ho thata ka lebaka la ho itšetleha ka maemo a liphaephe; ho lekanya fektheri ho kanna ha se ke ha ikarabella ka botlalo bakeng sa diphetoho tse teng sebakeng seo.
4. Litšenyehelo le Botsebi ba Theknoloji
Litšenyehelo tsa pele tse phahameng:
E theko e boima ho feta dimethara tsa motheo tsa mechini (mohlala, dimethara tsa paddlewheel) bakeng sa diphaephe tse nyane.
Tlhokahalo ea Bokgoni ba Tekheniki: Ho kenya le ho rarolla mathata ho hloka boiphihlelo theknolojing ea ultrasonic le matla a mokelikeli.
5. Meeli Maemong a Ikhethang
Lebelo la Phallo e Tlase:
E thatafalloa ke sekhahla se tlase haholo sa phallo (mohlala, <0.1 m/s) ka lebaka la phapang e nyane ea nako pakeng tsa matšoao a holimo/tlase.
Mocheso o Phahameng/Khatello:
E lekanyetsoa ke thepa ea transducer; ha ea lokela mocheso o feteletseng (mohlala, >200°C) kapa likhatello tse se nang meralo e khethehileng.
Limithara tsa phallo ea ultrasonic lia ipabola lits'ebetsong tse hlokang tekanyo e sa keneleng, e nepahetseng haholo ea maro a bophara bo boholo kapa a rarahaneng (mohlala, kalafo ea metsi, khase ea tlhaho). Leha ho le joalo, li hloka ho nahanoa ka hloko ka maemo a liphaephe, thepa ea mokelikeli le boiphihlelo ba ho kenya. Bakeng sa libaka tse nang le phallo e sa tsitsang, litaba tse phahameng tsa lintho tse tiileng, kapa libaka tse thata tsa ho kenya, limithara tse ling (mohlala, limithara tsa motlakase kapa tsa vortex) li ka ba tse loketseng haholoanyane.
Nako ea poso: Phuptjane-22-2025