Kakaretso
Limithara tsa phallo ke lisebelisoa tsa bohlokoa taolong ea ts'ebetso ea indasteri, tekanyo ea matla le tlhokomelo ea tikoloho. Pampiri ena e bapisa melao-motheo ea ts'ebetso, litšobotsi tsa tekheniki, le lits'ebetso tse tloaelehileng tsa limithara tsa phallo ea motlakase, limithara tsa phallo ea ultrasonic, le limithara tsa phallo ea khase. Limithara tsa phallo ea motlakase li loketse lino tse tsamaisang motlakase, limithara tsa phallo ea ultrasonic li fana ka tekanyo e nepahetseng e sa amaneng, 'me limithara tsa phallo ea khase li fana ka litharollo tse fapaneng bakeng sa mecha e fapaneng ea khase (mohlala, khase ea tlhaho, likhase tsa indasteri). Lipatlisiso li bontša hore ho khetha mithara ea phallo e nepahetseng ho ka ntlafatsa ho nepahala ha tekanyo haholo (phoso < ± 0.5%), ho fokotsa tšebeliso ea matla (poloko ea 15%–30%), le ho ntlafatsa katleho ea taolo ea ts'ebetso.
1. Limithara tsa Phallo ea Elektromakenete
1.1 Molao-motheo oa Mosebetsi
Ho latela Molao oa Faraday oa ho Hlahisa Matla a Motlakase, mekelikeli e tsamaisang motlakase e phallang tšimong ea makenete e hlahisa motlakase o lekanang le lebelo la phallo, le bonoang ke li-electrode.
1.2 Likarolo tsa Tekheniki
- Media e Loketseng: Metsi a tsamaisang motlakase (a tsamaisang motlakase ≥5 μS/cm), joalo ka metsi, li-acid, li-alkali le li-slurry.
- Melemo:
- Ha ho likarolo tse tsamaeang, ha li tsofale, bophelo ba tšebeletso e telele
- Mefuta e mengata ea litekanyo (0.1–15 m/s), tahlehelo ea khatello e sa reng letho
- Ho nepahala ho hoholo (± 0.2%–± 0.5%), tekanyo ea phallo ea mahlakore a mabeli
- Meeli:
- Ha ea lokela maro a sa tsamaiseng motlakase (mohlala, oli, metsi a hloekileng)
- E kotsing ea ho sitisoa ke lipululana kapa likaroloana tse tiileng
1.3 Litšebeliso tse Tloaelehileng
- Metsi/Metsi a Litšila a Masepala: Tlhokomelo ea phallo ea bophara bo boholo (DN300+)
- Indasteri ea Lik'hemik'hale: Tekanyo ea mokelikeli o senyang (mohlala, sulfuric acid, sodium hydroxide)
- Lijo/Meriana: Meralo ea bohloeki (mohlala, ho hloekisa CIP)
2. Methapo ea Phallo ea Ultrasonic
2.1 Molao-motheo oa Mosebetsi
E lekanya lebelo la phallo ka ho sebelisa phapang ea nako ea transit (nako ea ho fofa) kapa phello ea Doppler. Mefuta e 'meli e meholo:
- Ho kenya ka clamp-on (Ha e hlasele): Ho kenya habonolo
- Ho kenngoa: E loketse liphaephe tse kholo
2.2 Likarolo tsa Tekheniki
- Media e Loketseng: Metsi le likhase (mehlala e itseng e fumanehang), e tšehetsa phallo e le 'ngoe/ea mekhahlelo e mengata
- Melemo:
- Ha ho phokotso ea khatello, e loketse maro a nang le viscosity e phahameng (mohlala, oli e tala)
- Mefuta e mengata ea litekanyo (0.01–25 m/s), ho nepahala ho fihlela ho ± 0.5%
- E ka kenngoa inthaneteng, tlhokomelo e tlase
- Meeli:
- E angoa ke thepa ea phaephe (mohlala, tšepe e entsoeng ka tšepe e ka fokotsa matšoao) le ho tšoana ha mokelikeli
- Litekanyo tse nepahetseng haholo li hloka phallo e tsitsitseng (qoba ho tsieleha)
2.3 Litšebeliso tse Tloaelehileng
- Oli le Khase: Tlhokomelo ea liphaephe tsa maeto a malelele
- Mekhoa ea HVAC: Tekanyo ea matla bakeng sa metsi a pholileng/a futhumatsang
- Tlhokomelo ea Tikoloho: Tekanyo ea phallo ea noka/litšila (mehlala e nkehang habobebe)
3. Limithara tsa Phallo ea Khase
3.1 Mefuta le Litšobotsi tsa Bohlokoa
| Mofuta | Molao-motheo | Likhase tse Loketseng | Melemo | Meeli |
|---|---|---|---|---|
| Boima ba Thermal | Ho qhalana ha mocheso | Likhase tse hloekileng (moea, N₂) | Phallo e tobileng ea boima, ha ho na puseletso ea mocheso/khatello | Ha ea lokela likhase tse mongobo/tse lerōle |
| Mokoloko oa maqhubu | Seterata sa Kármán vortex | Mouoane, khase ea tlhaho | Khanyetso e phahameng ea mocheso/khatello | Kutloelo-bohloko e tlase ha phallo e le tlase |
| Turbine | Ho potoloha ha rotor | Khase ea tlhaho, LPG | Ho nepahala ho hoholo (± 0.5%–± 1%) | E hloka tlhokomelo ea libere |
| Khatello e Fapaneng (Orifice) | Molao-motheo oa Bernoulli | Likhase tsa indasteri | Litšenyehelo tse tlase, tse tloaelehileng | Tahlehelo e phahameng ea khatello e sa feleng (~30%) |
3.2 Litšebeliso tse Tloaelehileng
- Lekala la Matla: Phetisetso ea tlhokomelo ea khase ea tlhaho
- Tlhahiso ea Semiconductor: Taolo ea khase e hloekileng haholo (Ar, H₂)
- Tlhokomelo ea ho Ntša Mosi: Tekanyo ea phallo ea khase ea flue (SO₂, NOₓ)
4. Tataiso ea Papiso le Khetho
| Paramethara | Elektromakenete | Ultrasonic | Khase (Mohlala oa Thermal) |
|---|---|---|---|
| Mecha ea phatlalatso e loketseng | Metsi a tsamaisang motlakase | Metsi/likhase | Likhase |
| Ho nepahala | ± 0.2%–0.5% | ± 0.5%–1% | ± 1%–2% |
| Tahlehelo ea Khatello | Ha ho letho | Ha ho letho | E nyenyane |
| Ho kenya | Phaephe e felletseng, e thellang fatše | E hloka ho matha ka ho otloloha | Qoba ho thothomela |
| Litšenyehelo | Bohareng-holimo | Bohareng-holimo | E mahareng-tlase |
Mekhoa ea Khetho:
- Tekanyo ea Metsi: Elektromakenete bakeng sa maro a tsamaisang motlakase; ultrasonic bakeng sa mecha ea phatlalatso e sa tsamaiseng motlakase/e senyang motlakase.
- Tekanyo ea Khase: Thermal bakeng sa likhase tse hloekileng; vortex bakeng sa mouoane; turbine bakeng sa phetisetso ea tlhokomelo.
- Litlhoko tse Ikhethang: Lisebelisoa tsa bohloeki li hloka meralo e se nang sebaka se shoeleng; mecha ea mocheso o phahameng e hloka thepa e sa keneleng mocheso.
5. Liqeto le Mekhoa ea Nakong e Tlang
- Methapo ea phallo ea motlakase e laola liindasteri tsa lik'hemik'hale/metsi, ka tsoelo-pele ea nakong e tlang tekanyong ea mokelikeli o fokolang oa motlakase (mohlala, metsi a hloekileng haholo).
- Methapo ea phallo ea ultrasound e ntse e hola tsamaisong e bohlale ea metsi/matla ka lebaka la melemo ea ho se kopane.
- Methapo ea phallo ea khase e ntse e fetoha ho ea ho kopanyo ea liparamente tse ngata (mohlala, puseletso ea mocheso/khatello + tlhahlobo ea sebopeho) bakeng sa ho nepahala ho hoholo.
- Sete e felletseng ea li-server le module ea waelese ea software, e tšehetsa RS485 GPRS /4g/WIFI/LORA/LORAWANBakeng sa tlhahisoleseling e batsi ea flow meter,
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Nako ea poso: Phato-13-2025