Pu'upu'u
O mita tafe o ni meafaigaluega taua i le faʻatonutonuina o gaioiga faʻapisinisi, fuaina o le malosi, ma le mataʻituina o le siosiomaga. O lenei pepa e faʻatusatusa ai taʻiala galue, uiga faʻapitoa, ma faʻaoga masani o mita eletise eletise, mita eletise ultrasonic, ma mita tafe kesi. O mita tafe eletise e fetaui lelei mo le faʻaogaina o vai, o mita tafe ultrasonic e ofoina atu le fuaina o le maualuga e le faʻafesoʻotaʻi, ma o mita tafe kesi e maua ai fofo eseese mo faʻasalalauga eseese kesi (faʻataʻitaʻiga, kesi masani, kasa fale gaosimea). O su'esu'ega o lo'o fa'aalia ai o le filifilia o le mita tafe talafeagai e mafai ona fa'aleleia atili ai le sa'o o fua (sese <± 0.5%), fa'aitiitia le fa'aaogaina o le malosi (15%-30% fa'apolopolo), ma fa'amalieina le lelei o le fa'atonutonuina o faiga.
1. Electromagnetic Flow Meters
1.1 Fa'avae Galuega
Fa'avae i luga ole Faraday's Law of Electromagnetic Induction, o sua fa'aoso o lo'o tafe i totonu ole maneta e fa'atupuina ai se voluma e fa'atatau i le saoasaoa o le tafe, lea e iloa e le eletise.
1.2 Vaega Fa'apitoa
- Fa'asalalauga Talafeagai: Suavai fa'afefe (conductivity ≥5 μS/cm), pei o vai, acids, alkalis, ma slurries.
- Tulaga lelei:
- Leai ni vaega fe'avea'i, fa'alavalava, umi le tautua
- Tele fua fa'atatau (0.1-15 m/s), fa'aletonu le mamafa o le mamafa
- Saʻo maualuga (± 0.2% - ± 0.5%), fua faʻasolosolo faʻasolosolo
- Tapulaa:
- E le talafeagai mo vai e le fa'aoso (fa'ata'ita'iga, suau'u, vai mama)
- Fa'aaafia i fa'alavelave mai pupuni po'o ni vaega malo
1.3 Talosaga masani
- Suavai a le Malo/Suavai Lafoa'i: Mata'ituina o le tafega tele-diameter (DN300+).
- Alamanuia Vailaau Matautia: Su'ega sua sua (faataitaiga, sulfuric acid, sodium hydroxide)
- Mea'ai/Foma'i: Fuafuaga tumama (fa'ata'ita'iga, fa'amama CIP)
2. Ultrasonic Flow Meters
2.1 Fa'avae Galuega
Fua le saoasaoa o le tafe e fa'aaoga ai le eseesega o taimi femalaga'i (taimi-o-vaalele) po'o le aafiaga o le Doppler. E lua ituaiga autu:
- Fa'amau-i luga (E le fa'asalaina): Fa'apipi'i faigofie
- Faaofiina: E talafeagai mo paipa tetele
2.2 Vaega Fa'apitoa
- Fa'asalalauga Talafeagai: Suavai ma kasa (fa'ata'ita'iga fa'apitoa o lo'o avanoa), e lagolagoina le tafe ta'i tasi/tele-vaega.
- Tulaga lelei:
- Leai se pa'u o le mamafa, e fetaui lelei mo sua viscosity maualuga (fa'ata'ita'iga, suauu mama)
- Tele fua fua (0.01–25 m/s), sa'o e oo atu i le ±0.5%
- E mafai ona faʻapipiʻi i luga ole laiga, maualalo le tausiga
- Tapulaa:
- A'afia i mea paipa (fa'ata'ita'iga, u'amea lafo e mafai ona fa'aitiitia fa'ailoga) ma le tutusa o le sua
- O fua sa'o maualuga e mana'omia ai le sologa lelei (aloese mai le vevesi)
2.3 Talosaga masani
- Suau'u & Kesi: Mata'ituina laina paipa mamao
- Faiga HVAC: Fuaina o le malosi mo le vai malulu/fa'avevela
- Mata'ituina o le Si'osi'omaga: Fuaina o le vaitafe/tafe (fa'ata'ita'i feavea'i)
3. Meta tafe kesi
3.1 Ituaiga Autu ma Vaega
| Ituaiga | Mataupu Faavae | Kasa talafeagai | Tulaga lelei | Tapulaa |
|---|---|---|---|---|
| Massa vevela | Fa'avevelaina o le vevela | Kasa mama (ea, N₂) | Fa'asa'o le tele o le tafe, leai se tau / mamafa | Le talafeagai mo kasa susu/pefu |
| Vortex | Kármán vortex street | Ausa, kesi faanatura | Tete'e maualuga o le vevela / mamafa | Ma'ale'ale maualalo i tafega maualalo |
| Turbine | Rotor liliu | Kesi faanatura, LPG | Sa'o maualuga (±0.5%–±1%) | E mana'omia le tausiga o fa'amau |
| Omiga Eseese (Orifice) | mataupu faavae a Bernoulli | Kasa fa'apisinisi | Tau maualalo, faʻasalalau | Le maualuga o le mamafa tumau (~30%) |
3.2 Talosaga masani
- Vaega o Malosiaga: Si'itia le kesi fa'alenatura
- Gaosiga Semiconductor: Pulea kasa maualuga mama (Ar, H₂)
- Mata'ituina o le fa'aoso: Fua o le kasa (SO₂, NOₓ).
4. Faatusatusaga ma Filifiliga Taiala
| Parameter | Electromagnetic | Ultrasonic | Kesi (Fa'ata'ita'iga Fa'avevela) |
|---|---|---|---|
| Faasalalauga talafeagai | Suavai fe'avea'i | Suavai/kasa | Kasa |
| Sa'o | ±0.2%–0.5% | ±0.5%–1% | ±1%–2% |
| Omiga gau | Leai | Leai | Laiti |
| Fa'apipi'i | Pipa atoa, fa'avae | Manaomia tamo'e sa'o | Aloese mai le tetete |
| Tau | Medium-maualuga | Medium-maualuga | Ma'a'alalo |
Tulaga Filifilia:
- Fua Suavai: Electromagnetic mo sua faʻaulu; ultrasonic mo ala leo-conductive/corrosive.
- Fua o le kesi: vevela mo kasa mama; vortex mo ausa; turbine mo le fesiitaiga.
- Manaoga Fa'apitoa: O talosaga tumama e mana'omia ni mamanu e leai ni avanoa e mate; e manaʻomia e ala o fesoʻotaʻiga vevela vevela mea faʻafefe.
5. Fa'ai'uga ma Fa'asologa o le Lumana'i
- O mita fa'aeletise fa'aeletise e fa'amalo i fale kemikolo/vai, fa'atasi ai ma le aga'i i luma ile fua ole sua (fa'ata'ita'iga, vai mama).
- Ultrasonic flow meters o loʻo faʻatupulaia i le atamai vai / pulega malosi ona o le le faʻafesoʻotaʻi lelei.
- O mita tafe kesi o lo'o fa'asolosolo aga'i atu i le tu'ufa'atasiga tele-parameter (fa'ata'ita'iga, tau o le vevela/omiga + su'esu'ega tu'ufa'atasiga) mo le sa'o maualuga.
- Seti atoatoa o sapalai ma masini komepiuta uaealesi module, lagolago RS485 GPRS / 4g/WIFI/LORA/LORAWANMo nisi fa'amatalaga mita tafe,
fa'amolemole fa'afeso'ota'i le Honde Technology Co., LTD.
Email: info@hondetech.com
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Taimi meli: Aukuso-13-2025