Abstract
Iimitha ezihambayo zizixhobo ezibalulekileyo kulawulo lwenkqubo yoshishino, umlinganiselo wamandla, kunye nokubeka iliso kokusingqongileyo. Eli phepha lithelekisa imigaqo yokusebenza, iimpawu zobugcisa, kunye nokusetyenziswa okuqhelekileyo kweemitha zokuhamba kwe-electromagnetic, iimitha zokuhamba kwe-ultrasonic, kunye neemitha zokuhamba kwegesi. Iimitha zokuhamba kwe-Electromagnetic zilungele ulwelo oluqhubayo, iimitha zokuhamba kwe-ultrasonic zibonelela ngomlinganiselo ochanekileyo ophezulu ongaqhagamshelwanga, kunye neemitha zokuhamba kwegesi zibonelela ngezisombululo ezahlukeneyo zemithombo yerhasi eyahlukeneyo (umzekelo, igesi yendalo, iigesi zamashishini). Uphando lubonisa ukuba ukukhetha imitha yokuhamba efanelekileyo kunokuphucula kakhulu ukuchaneka kokulinganisa (impazamo <± 0.5%), ukunciphisa ukusetyenziswa kwamandla (15% -30% ukugcinwa), kunye nokwandisa inkqubo yokulawula ukusebenza kakuhle.
1. Iimitha zokuHamba zoMbane
1.1 UmGaqo wokuSebenza
Ngokusekwe kuMthetho kaFaraday wokungeniswa koMbane woMbane, ulwelo oluqhubayo oluqukuqela kwindawo yemagnethi luvelisa amandla ombane alungelelanisiweyo wokuqukuqela isantya, athi abonwe ziielectrode.
1.2 Iimpawu zobuGcisa
- Imidiya efanelekileyo: Ulwelo oluqhubayo (i-conductivity ≥5 μS / cm), njengamanzi, i-acids, i-alkali, kunye ne-slurries.
- Izinto eziluncedo:
- Akukho malungu ashukumayo, ukungagugi, ubomi benkonzo ende
- Uluhlu olubanzi lokulinganisa (0.1-15 m / s), ilahleko yoxinzelelo olungenamsebenzi
- Ukuchaneka okuphezulu (±0.2%–±0.5%), umlinganiselo wokuqukuqela omacala omabini
- Imida:
- Ayilulungelanga ulwelo olunga-conductive (umzekelo, i-oyile, amanzi asulungekileyo)
- Iyakwazi ukuphazamisana namaqamza okanye amasuntswana aqinileyo
1.3 Ukusetyenziswa okuqhelekileyo
- Amanzi kaMasipala/Amanzi amdaka: Ukubekwa esweni kokuhamba kwamanzi kububanzi obukhulu (DN300+).
- Umzi mveliso wemichiza: Umlinganiselo wolwelo olonakalisayo (umzekelo, iasidi yesulfuric, ihydroxide yesodium)
- Ukutya/Amayeza: Uyilo lococeko (umzekelo, ukucocwa kweCIP)
2. Iimitha zokuHamba zeUltrasonic
2.1 UMmiselo wokuSebenza
Ilinganisa isantya sokuhamba kusetyenziswa umahluko wexesha lokuhamba (ixesha lenqwelomoya) okanye isiphumo seDoppler. Iindidi eziphambili ezimbini:
- I-Clamp-on (I-Non-invasive): Ufakelo olulula
- Ukufakwa: Ilungele imibhobho emikhulu
2.2 Iimpawu zobuGcisa
- Imidiya efanelekileyo: Ulwelo kunye neegesi (imifuziselo ethile ekhoyo), ixhasa ukuhamba okukodwa/kumanqanaba amaninzi
- Izinto eziluncedo:
- Akukho xinzelelo lwehla, lulungele ulwelo lwe-viscosity ephezulu (umzekelo, i-oyile ekrwada)
- Uluhlu olubanzi lokulinganisa (0.01–25 m/s), ukuchaneka ukuya kuthi ga ku-±0.5%.
- Inokufakwa kwi-intanethi, ukugcinwa okuphantsi
- Imida:
- Ukuchatshazelwa yimathiriyeli yombhobho (umzekelo, intsimbi etyhidiweyo inokuthoba imiqondiso) kunye nolwelo olulinganayo
- Imilinganiselo echaneke kakhulu ifuna ukuhamba okuzinzileyo (uphephe uqhushululu)
2.3 Ukusetyenziswa okuqhelekileyo
- I-oyile neGesi: Ukujongwa kwemibhobho yomgama omde
- IiNkqubo zeHVAC: Umlinganiselo wamandla wamanzi abandayo/ashushu
- Ukubeka iliso kokusiNgqongileyo: Umlinganiselo wokuqukuqela komlambo/umlambo (imifuziselo ephathekayo)
3. Iimitha zokuHamba kwegesi
3.1 Iintlobo eziphambili kunye neempawu
| Uhlobo | Umgaqo | Iigesi ezifanelekileyo | Iingenelo | Ukulinganiselwa |
|---|---|---|---|---|
| I-Thermal Mass | Ukutshatyalaliswa kobushushu | Iigesi ezicocekileyo (umoya, N₂) | Ukuhamba kobunzima obuthe ngqo, akukho temptation / imbuyekezo yoxinzelelo | Ayizifanelanga iigesi ezifumileyo/ ezinothuli |
| I-Vortex | Kármán vortex street | Umphunga, igesi yendalo | Ukushisa okuphezulu / ukumelana noxinzelelo | Uvakalelo oluphantsi ekuqukuqeni okuphantsi |
| Iturbine | Ukujikeleza kweRotor | Irhasi yendalo, LPG | Ukuchaneka okuphezulu (±0.5%–±1%) | Ifuna ukugcinwa kokuthwala |
| Uxinzelelo olwahlukileyo (Orifice) | Umgaqo kaBernoulli | Iigesi zemizi-mveliso | Iindleko eziphantsi, ezisemgangathweni | Ilahleko ephezulu yoxinzelelo olusisigxina (~ 30%) |
3.2 Ukusetyenziswa okuqhelekileyo
- ICandelo laMandla: Ugqithiselo lokugcinwa kwerhasi yendalo
- Ukwenziwa kweSemiconductor: Ulawulo lwegesi olusulungekileyo oluphezulu (Ar, H₂)
- Ukujongwa kokuPhuma: Irhasi yomkhuhlane (SO₂, NOₓ) umlinganiselo wokuhamba
4. Uthelekiso kunye neziKhokelo zokuKhetha
| Ipharamitha | I-electromagnetic | Ultrasonic | Irhasi (umzekelo wobushushu) |
|---|---|---|---|
| Imidiya efanelekileyo | Ulwelo oluqhubayo | Ulwelo/iigesi | Iigesi |
| Ukuchaneka | ±0.2%–0.5% | ±0.5%–1% | ±1%–2% |
| Ilahleko yoxinzelelo | Akukho nanye | Akukho nanye | Ubuncinci |
| Ukuhlohla | Umbhobho opheleleyo, umhlaba | Ifuna imitsi ethe ngqo | Kuphephe ukungcangcazela |
| Iindleko | Phakathi-phezulu | Phakathi-phezulu | Phantsi-phakathi |
Iinqobo zoKhetho:
- Umlinganiselo wolwelo: I-Electromagnetic yolwelo oluqhubayo; I-ultrasonic ye-non-conductive / i-corrosive media.
- Umlinganiselo weGesi: I-Thermal yeegesi ezicocekileyo; i-vortex yomphunga; iturbine yokudluliselwa kogcino.
- IiMfuno eziKhethekileyo: izicelo zococeko zifuna uyilo olungenandawo yokufa; imidiya ephezulu yobushushu ifuna izinto ezikwazi ukumelana nobushushu.
5. Izigqibo kunye neendlela ezizayo
- Iimitha zokuhamba zombane zilawula amashishini ekhemikhali/amanzi, kunye nenkqubela phambili yexesha elizayo kumlinganiselo wolwelo oluphantsi koconductivity (umz., amanzi acocekileyo).
- Iimitha zokuhamba kwe-Ultrasonic zikhula kulawulo lwamanzi / amandla ahlakaniphile ngenxa yeenzuzo ezingabonakaliyo.
- Iimitha zokuhamba kwerhasi ziguqukela ekudityanisweni kweeparamitha ezininzi (umzekelo, imbuyekezo yexesha/noxinzelelo + uhlalutyo lokwakheka) ukuchaneka okuphezulu.
- Iseti epheleleyo yeeseva kunye nemodyuli yesoftware engenazingcingo, ixhasa iRS485 GPRS / 4g/WIFI/LORA/LORAWANNgolwazi oluthe kratya lwemitha yombane,
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Ixesha lokuposa: Aug-13-2025