Muma parameter ehunyanzvi hwe ultrasonic flowmeters, kururama kwekuverenga uye kururama kwakazara ipfungwa mbiri huru dzinotsanangura kunyatsoyera, netsananguro dzakasiyana, mamiriro ekushandiswa, uye zvinhu zvinopesvedzera. Heino tsananguro yakadzama:
1. Kuverenga Kwakarurama
Tsanangudzo
Kunyatsoverenga kunoreva kukanganisa kuripo pakati pekuyera kwechiyero cheflowmeter nechiyero chaicho chekuyerera, chinoratidzwa sechikamu chechiyero chaicho chakayerwa. Fomura yayo yekuverenga ndeiyi:
Chikanganiso = ± (a% × Kukosha chaiko kwakayerwa + Kutsauka kwakatarwa)
Kupi
Chikanganiso = ± (a% × Kukosha chaiko kwakayerwa + Kutsauka kwakatarwa)
Kupi
a%ndiyo chikamu chekururama kwekuverenga, uye kutsauka kwakagadzika kunowanzo kuve muripo wemari yekuyerera kwakaderera (semuenzaniso, ±0.01 m³/h).Hunhu
- Kukanganisa kunoenderana nechiyero chaicho chekuyerera kwemvura: Kana chiyero chekuyerera kwemvura chikawanda, kukanganisa kwakakwana kunobvumidzwa kunowedzera; kana chiyero chekuyerera kwemvura chikashoma, kukanganisa kwakakwana kunobvumidzwa kudiki.
- Zvinowirirana zvakanyanya nemamiriro ezvinhu chaiwo ekushandiswa: Mumamiriro ezvinhu ane kuchinja kukuru kwekuyerera kwemvura (semuenzaniso, mapaipi emaindasitiri uko kuyerera kwemvura kunogona kusiyana kubva pakaderera kusvika pakakwirira), kunyatsoverenga kunoratidza zviri nani kunyatsoongorora.
- Muenzaniso: Kana flowmeter ine kuverenga kwakarurama kwe ±1%, kana flow rate chaiyo iri 100 m³/h, kukanganisa kunobvumirwa kwehuwandu hwakayerwa i ±1 m³/h (kureva, 99–101 m³/h); kana flow rate chaiyo iri 10 m³/h, kukanganisa kunobvumidzwa i ±0.1 m³/h (kureva, 9.9–10.1 m³/h).
2. Kururama Kwakazara
Tsanangudzo
Kururama kwakazara kunoreva kukanganisa pakati pekuyera kwechiyero chemuchina wekufambisa mvura nechiyero chaicho chekuyerera kwemvura, kunoratidzwa sechikamu chehuwandu hwechiyero chakazara chemuchina wekufambisa mvura. Fomura yayo yekuverenga ndeiyi:
Chikanganiso = ± (b% × Kukosha kwakazara + Kutsauka kwakasimba)
Kupi
Chikanganiso = ± (b% × Kukosha kwakazara + Kutsauka kwakasimba)
Kupi
b%ndiyo chikamu chekururama kwechiyero chakazara, uye kukosha kwechiyero chakazara ndiko kuyerera kwakanyanya kunogona kuyera mita (semuenzaniso, 1000 m³/h).Hunhu
- Chikanganiso chinogadziriswa zvichienderana nehuwandu hwese: Pasinei nechiyero chaicho chekuyerera, huwandu hwechikanganiso hunosarudzwa nehuwandu hwese hwese, husingabatanidzwi nehuwandu chaihwo hwakayerwa.
- Zvikanganiso zvingangove zvakakura pahuwandu hwemvura yakaderera: Kana huwandu hwemvura chaiyo hwakaderera kupfuura huwandu hwemvura yose, huwandu hwemvura hunowedzera zvakanyanya.
- Muenzaniso: Kana flowmeter iine chiyero chakazara che1000 m³/h uye kururama kwe±1%, kukanganisa kwakakwana kunobvumirwa i±10 m³/h kungave chiyero chaicho chekuyerera chiri 1000 m³/h kana 100 m³/h. Muchiitiko ichi, kana chiyero chaicho chekuyerera chiri 100 m³/h, kukanganisa kunogona kusvika ±10%, zvakanyanya kupfuura kugona kwekuverenga kwakarurama.
3. Misiyano mikuru uye Maitiro ekushandisa
| Kuenzanisa | Kuverenga Kwakarurama | Kururama Kwakazara |
|---|---|---|
| Chirevo cheChikanganiso | Chikamu chehuwandu chaihwo hwakayerwa | Chikamu chehuwandu hwakazara |
| Kushanda Kwepasi | Zvikanganiso zvidiki, kunyatsojeka kwakanyanya | Zvikanganiso zvikuru, kunyatsojeka kushoma |
| Maitiro Ekushandisa | Mamiriro ezvinhu ane kuchinja kukuru kwekuyerera kwemvura kana kudiwa kwakanyanya kwekururama kwekuyerera kwemvura kushoma (semuenzaniso, kuwanikwa kwemvura yemuguta, kuyera simba) | Mamiriro ezvinhu ane kuyerera kwakasimba pedyo nehukuru hwakazara (semuenzaniso, mapaipi eindasitiri akasimbiswa) |
| Zvakanakira | Zvirinani zvinoratidza zvinodiwa zvechokwadi zvepasirese | Zviri nyore kushandisa, zvingangoita kuti mutengo udzikire |
4. Pfupiso
- Kunyatsoverenga kunoratidza zviri nani kugona kwemuchina wekuyeresa mafambiro emvura muhuwandu hwese, kunyanya zvakakodzera mumamiriro ezvinhu ane kusiyana kukuru kwekuyerera kwemvura. Ichi chiratidzo chikuru chemuchina wekuyeresa mafambiro emvura wakanyatsojeka.
- Kururama kwakazara kunoshanda zvakanaka kana kuyerera kwemvura kwava pedyo nekukwira kwakazara asi kunogona kuva nezvikanganiso zvakakura pakufamba kwakaderera, zvinowanzo shandiswa mumamiriro ezvinhu ane zvinodiwa zvishoma kana kuyerera kwakasimba.
Pakusarudza ultrasonic flowmeter, sarudza michina yakatarwa ine kururama kwekuverenga (kunyanya mumamiriro ezvinhu apo mwero wemvura yakaderera unowanzoonekwa) zvichienderana nehuwandu hwemvura chaiyo, zvinodiwa nemazvo, uye mamiriro ekushandiswa kuti uve nechokwadi chekuti kuyera kwakarurama.
Nguva yekutumira: Chikunguru-22-2025