1. Kupesvedzera kwechikamu chepombi yakatwasuka neyakatwasuka pakuyera kwakarurama kwe ultrasonic flowmeter. Calibration coefficient K ibasa renhamba yaReynolds. Kana kumhanya kwekuyerera kusina kuenzana kubva pakuyerera kwe laminar kuenda pakuyerera kwakatwasuka, calibration coefficient K ichachinja zvakanyanya, zvichikonzera kudzikira kwekuyera kwakarurama. Zvichienderana nezvinodiwa zvekushandisa, ultrasonic flow meter transducer inofanira kuiswa muchikamu chepombi yakatwasuka ye 10D, chikamu chepombi yakatwasuka ye downstream che 5D position, kuti pombi, mavharuvhu nezvimwe zvishandiso zvivepo pakureba kwechikamu chepombi yakatwasuka, zvinodiwa zve "daro kubva pakutenderera, kudedera, kupisa, ruzha uye ray source kusvika pazvinogoneka". Kana paine mapombi, mavharuvhu nezvimwe zvishandiso kumusoro kwenzvimbo yekuisa ye ultrasonic flow meter transducer, chikamu chepombi yakatwasuka chinofanirwa kunge chiri kupfuura 30D. Naizvozvo, kureba kwechikamu chepombi yakatwasuka ndicho chinhu chikuru chekuona kuti chiyero chakarurama.
2. Kukanganiswa kwemidziyo yemapaipi pakururama kwekuyera kwe ultrasonic flowmeter. Kururama kwekuisa mapaipi epaipi kwakabatana zvakanyanya nekururama kwekuyera. Kana kuiswa kwezvinhu nehukuru hwepaipi zvisingaenderane nezviripo, zvinokonzeresa kukanganisa pakati penzvimbo ye theoretical pipeline flow cross-sectional nenzvimbo chaiyo ye flow cross-sectional, zvichikonzera mhedzisiro yekupedzisira isina kururama. Pamusoro pezvo, nzvimbo yekubuda kwemhepo pakati pe ultrasonic flow meter transducer imhedzisiro yekuverengerwa kwakazara kwema parameter akasiyana-siyana akadai se fluid (sound velocity, dynamic viscosity), pipeline (zvinhu nehukuru), uye nzira yekuisa ye transducer, nezvimwewo, uye daro rekuisa re transducer rinotsauka, izvo zvinokonzeresawo zvikanganiso zvikuru zvekuyera. Pakati pazvo, daro rekuisa nerokuisa re inner warp yepipeline zvine simba guru pakuyera kwakarurama. Zvichienderana nedata rakakodzera, kana kukanganisa kwemukati kwepaipi kuri ±1%, kunokonzera kukanganisa kwekuyerera kweanenge ±3%; Kana kukanganisa kwedaro rekuisa kuri ±1mm, kukanganisa kwekuyerera kuchava mukati me ±1%. Zvinogona kuonekwa kuti kana parameter dzemapaipi dzakagadziriswa nemazvo chete ndipo panogona kuiswa flowmeter ye ultrasonic nemazvo uye simba reparameter dzemapaipi pakuyera kwakarurama rinogona kuderedzwa.
3, simba rekuisa transducer ye ultrasonic flow meter pakuyera kwakarurama. Kune nzira mbiri dzekuisa transducer: rudzi rwekuratidzwa uye rudzi rwakananga. Kana kushandiswa kwekufamba kwekumhanya kweruzha kwakananga kuri kupfupi, simba rechiratidzo rinogona kuwedzerwa.
4. Kukanganisa kwemushonga wekubatanidza pakururama kwekuyera. Kuti uve nechokwadi chekuti panosangana pombi zvizere, pakuisa muchina wekubatanidza, chikamu chemushonga wekubatanidza chinofanira kuputirwa zvakaenzana pamusoro pepombi, uye ukobvu hwacho hunofanira kuva (2mm - 3mm). Mabhubhu nemagranule ari muchina wekubatanidza zvinobviswa kuitira kuti pamusoro pemuchina wekubatanidza muchina wekubatanidza mvura ubatanidzwe zvakasimba pamadziro echubhu. Maflowmeter ekuyera mvura inotenderera anowanzoiswa muWells, uye nharaunda ine hunyoro uye dzimwe nguva yakazara nemvura. Kana muchina wekubatanidza unoshandiswa, unokundikana munguva pfupi, zvichikanganisa kururama kwekuyera. Saka, muchina wekubatanidza mvura wakakosha unofanirwa kusarudzwa, uye muchina wekubatanidza unofanirwa kushandiswa mukati menguva inoshanda, kazhinji mwedzi gumi nemisere. Kuti uve nechokwadi chekuti muchina wekubatanidza wakarurama, muchina wekubatanidza unofanirwa kudzoserwazve mwedzi gumi nemisere yega yega uye muchina wekubatanidza unofanira kutsiviwa.
Nguva yekutumira: Gunyana-04-2023