Pōkole
He mau mea hana koʻikoʻi nā mika kahe i ka kaohi ʻana i ke kaʻina hana ʻoihana, ke ana ʻana i ka ikehu, a me ka nānā ʻana i ke kaiapuni. Hoʻohālikelike kēia pepa i nā loina hana, nā ʻano loea, a me nā noi maʻamau o nā mika kahe electromagnetic, nā mika kahe ultrasonic, a me nā mika kahe kinoea. He kūpono nā mika kahe electromagnetic no nā wai conductive, hāʻawi nā mika kahe ultrasonic i ke ana pololei kiʻekiʻe ʻole, a hāʻawi nā mika kahe kinoea i nā hoʻonā like ʻole no nā pā kinoea like ʻole (e laʻa, ke kinoea kūlohelohe, nā kinoea ʻoihana). Hōʻike ka noiʻi e hiki i ke koho ʻana i ka mika kahe kūpono ke hoʻomaikaʻi nui i ka pololei o ke ana ʻana (hewa < ± 0.5%), hoʻemi i ka hoʻohana ʻana i ka ikehu (15%–30% mālama kālā), a hoʻomaikaʻi i ka pono o ka kaohi ʻana i ke kaʻina hana.
1. Nā Mīkini Kahe Uila
1.1 Kumu Hana
Ma muli o ke Kānāwai o Faraday no ka Induction Electromagnetic, ʻo nā wai alakaʻi e kahe ana ma o kahi kahua magnetic e hoʻopuka i kahi uila e like me ka wikiwiki o ke kahe ʻana, kahi i ʻike ʻia e nā electrodes.
1.2 Nā Hiʻohiʻona ʻenehana
- Nā Mea Hana Kūpono: Nā wai hoʻoili (conductivity ≥5 μS/cm), e like me ka wai, nā waikawa, nā alkalis, a me nā slurries.
- Nā Pōmaikaʻi:
- ʻAʻohe ʻāpana e neʻe ana, kūpaʻa i ke kapa, ola lōʻihi
- Ka laulā ana ākea (0.1–15 m/s), ka pohō kaomi liʻiliʻi
- Pololei kiʻekiʻe (± 0.2%–± 0.5%), ana ʻana o ke kahe bidirectional
- Nā Palena:
- ʻAʻole kūpono no nā wai ʻaʻole alakaʻi (e like me nā aila, ka wai maʻemaʻe)
- Hiki ke hoʻopilikia ʻia e nā pehu a i ʻole nā ʻāpana paʻa
1.3 Nā Hoʻohana Maʻamau
- Wai/Wai ʻino o ke kūlanakauhale: Nānā ʻana i ke kahe ʻana o ke anawaena nui (DN300+)
- ʻOihana Kemika: Ana wai ʻino (e laʻa, waikawa sulfuric, sodium hydroxide)
- Meaʻai/Lapaʻau: Nā hoʻolālā hoʻomaʻemaʻe (e laʻa, ka hoʻomaʻemaʻe CIP)
2. Nā Mīkini Kahe Ultrasonic
2.1 Kumu Hana
Ana i ka wikiwiki o ke kahe ʻana me ka hoʻohana ʻana i ka ʻokoʻa manawa transit (manawa-o-ka lele) a i ʻole ka hopena Doppler. ʻElua ʻano nui:
- Hoʻopaʻa ʻia (ʻAʻole komo): Hoʻokomo maʻalahi
- Hoʻokomo: Kūpono no nā paipu nui
2.2 Nā Hiʻohiʻona ʻenehana
- Pāpaho kūpono: Nā wai a me nā kinoea (loaʻa nā hiʻohiʻona kikoʻī), kākoʻo i ke kahe hoʻokahi/multi-phase
- Nā Pōmaikaʻi:
- ʻAʻohe emi ʻana o ke kaomi, kūpono no nā wai viscosity kiʻekiʻe (e like me ka ʻaila maka)
- Ka laulā ana ākea (0.01–25 m/s), pololei a hiki i ±0.5%
- Hiki ke hoʻokomo ʻia ma ka pūnaewele, mālama haʻahaʻa
- Nā Palena:
- Hoʻopilikia ʻia e ka mea paipu (e laʻa, hiki i ka hao i hoʻolei ʻia ke hoʻonāwaliwali i nā hōʻailona) a me ka homogeneity wai
- Pono ke kahe paʻa no nā ana pololei kiʻekiʻe (e pale i ka haunaele)
2.3 Nā Hoʻohana Maʻamau
- ʻAila a me ke Kinoea: Ka nānā ʻana i nā paipu mamao loa
- Nā ʻōnaehana HVAC: Ana ikehu no ka wai anuanu/hoʻomehana
- Nānā Kaiapuni: Ana ʻana o ke kahe ʻana o ka muliwai/wai hoʻoheheʻe wai (nā kumu hoʻohālike lawe lima)
3. Nā Mīkini Kahe Kinoea
3.1 Nā ʻAno Nui a me nā Hiʻohiʻona
| ʻAno | Kumumanaʻo | Nā Kinoea Kūpono | Nā Pōmaikaʻi | Nā Palena |
|---|---|---|---|---|
| Ka nuipa wela | Hoʻopuehu wela | Nā kinoea maʻemaʻe (ea, N₂) | Kahe pololei o ka nuipa, ʻaʻohe uku pānaʻi mahana/kaomi | ʻAʻole kūpono no nā kinoea pulu/lepo |
| ʻO ka Vortex | Alanui vortex ʻo Kármán | Mahu, kinoea kūlohelohe | Ke kū'ē wela/kaomi kiʻekiʻe | ʻIke haʻahaʻa i ke kahe haʻahaʻa |
| Turbine | Ka hoʻohuli ʻana o ka rotor | Kinoea kūlohelohe, LPG | Pololei kiʻekiʻe (± 0.5%–± 1%) | Pono ka mālama ʻana i ka bearing |
| Kaomi ʻokoʻa (Orifice) | Ke kumumanaʻo o Bernoulli | Nā kinoea ʻoihana | Kumukūʻai haʻahaʻa, kūlana maʻamau | ʻO ka pohō paʻa mau loa (~30%) |
3.2 Nā Hoʻohana Maʻamau
- ʻĀpana Ikehu: Hoʻoili mālama kinoea kūlohelohe
- Hana ʻana o ka Semiconductor: Kaohi kinoea maʻemaʻe kiʻekiʻe (Ar, H₂)
- Nānā ʻana i ka hoʻokuʻu ʻana: Ana ʻana o ke kahe ʻana o ke kinoea flue (SO₂, NOₓ)
4. Nā Alakaʻi Hoʻohālikelike a me ke Koho ʻana
| Palena | Uila Makeneka | ʻO ke kani ultrasonic | Kinoea (Laʻana Wela) |
|---|---|---|---|
| Pāpaho Kūpono | Nā wai alakaʻi | Nā wai/kinoea | Nā kinoea |
| Pololei | ±0.2%–0.5% | ±0.5%–1% | ±1%–2% |
| Pohō Kaomi | ʻAʻohe | ʻAʻohe | Ka liʻiliʻi loa |
| Hoʻokomo ʻana | Paipu piha, hoʻoheheʻe ʻia | Pono nā holo pololei | E pale i ka haʻalulu |
| Kumukūʻai | Waena-kiʻekiʻe | Waena-kiʻekiʻe | Haʻahaʻa-waena |
Nā Kūlana Koho:
- Ana Wai: Electromagnetic no nā wai alakaʻi; ultrasonic no nā mea hana ʻole/corrosive.
- Ana Kinoea: Wela no nā kinoea maʻemaʻe; vortex no ka mahu; turbine no ka hoʻoili mālama.
- Nā Pono Kūikawā: Pono nā hoʻolālā hoʻomaʻemaʻe i nā hoʻolālā me ka ʻole o kahi make; pono nā mea pāpaho wela kiʻekiʻe i nā mea kūpaʻa i ka wela.
5. Nā Hopena a me nā ʻAno Hou e Hiki Mai Ana
- Hoʻomalu nā mika kahe electromagnetic i nā ʻoihana kemika/wai, me nā holomua i ka wā e hiki mai ana i ke ana ʻana o ka wai conductivity haʻahaʻa (e laʻa, ka wai ultrapure).
- Ke ulu nei nā mika kahe ultrasonic i ka hoʻokele wai/ikehu akamai ma muli o nā pono ʻole e pili ana.
- Ke holomua nei nā mika kahe kinoea i ka hoʻohui ʻana i nā multi-parameter (e laʻa, ka uku pānaʻi/kaomi + ka nānā ʻana i ka haku mele) no ka pololei kiʻekiʻe.
- Hoʻonohonoho piha o nā kikowaena a me ka module uea ʻole polokalamu, kākoʻo iā RS485 GPRS /4g/WIFI/LORA/LORAWANNo ka ʻike hou aku e pili ana i ke ana kahe,
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Ka manawa hoʻouna: Aug-13-2025