Ukuqonda Ukunemba Okuphansi Kwe-Doppler Ultrasonic Flowmeters

I-Doppler ama-flowmeter e-ultrasonicbabebathole izinhlelo zokusebenza ezimbonini eziningi zokulinganisa ukugeleza. Kodwa-ke, uma kuqhathaniswa nezinye ubuchwepheshe bokulinganisa ukugeleza, zivame ukubonisa ukunemba okuphansi kakhulu. Lesi sihloko sihlola izici ezibalulekile ezifaka isandla kule nkinga.

Ama-flowmeter e-Doppler ultrasonici-rely ngokuba khona kwezinhlayiya ezikhanyayo oketshezini olulinganiswayo. Ukuze kulinganiswe kahle, kudingeka ukuhlushwa okwanele nokulinganayo kwezinhlayiya. Ezimweni eziningi zangempela, ukugcina ukusatshalaliswa kwezinhlayiya okuhambisanayo kuyinselele. Isibonelo, ezitshalweni zokwelashwa kwamanzi, ukuhlushwa kwezinto eziqinile ezilengisiwe kungahluka kakhulu kuye ngesigaba senqubo yokwelapha. Uma ukuhlushwa kwezinhlayiya kuphansi kakhulu, isignali ye-ultrasonic eboniswa emuva ku-transducer ingaba buthakathaka kakhulu, okuholela ekubalweni kwejubane lokugeleza okungafanele. Ngokuphambene nalokho, uma ukuhlushwa kuphezulu kakhulu, ukuphazamiseka kwesignali kungenzeka, kuphambukise imiphumela yokulinganisa.

Ubukhulu kanye nohlobo lwezinhlayiya ezibonisa ukukhanya nakho kudlala indima ebalulekile. Ukushintsha kwe-Doppler esignalini ye-ultrasonic kuyazwela ngobukhulu bezinhlayiya. Uketshezi oluhlukene luqukethe izinhlayiya zobukhulu obuhlukahlukene, futhi uma ukusatshalaliswa kosayizi wezinhlayiya kungekho ngaphakathi kobubanzi obufanele bomklamo we-flowmeter, kuzovela amaphutha okulinganisa. Isibonelo, ohlelweni lokupholisa lwezimboni, ukuba khona kwezinhlayiya ezinkulu nezincane kungabangela ukubonakaliswa okungaguquki, okwenza kube nzima nge-flowmeter ukunquma ngokunembile ijubane lokugeleza elimaphakathi.

Ukugeleza koketshezi emapayipini akuvamile ukuba kuhle. Ukuvunguza kanye nama-eddie kuyizinto ezivamile, ikakhulukazi emapayipini anama-gond, ama-valve, noma izinguquko ezisheshayo endaweni enqamulayo. Ama-flowmeter e-Doppler ultrasonic athatha iphrofayili yokugeleza efanayo kakhulu kuyo yonke ingxenye enqamulayo yamapayipi. Kodwa-ke, lapho kukhona ukuvunguza, ijubane lokugeleza liyahlukahluka kakhulu ezindaweni ezahlukene ngaphakathi kwepayipi. Lokhu kusho ukuthi isignali ye-ultrasonic ingase ingameli ngokunembile ijubane lokugeleza elimaphakathi, okuholela ekungalungini kokulinganisa. Esitshalweni se-petrochemical, isibonelo, amapayipi athwala uketshezi oluqinile avame ukubhekana namaphethini okugeleza ayinkimbinkimbi ngenxa ye-viscosity ephezulu kanye nokuba khona kwezingxenye, okwenza kube nzima ngama-flowmeter e-Doppler ukunikeza ukufundwa okunembile.

Ukungalingani kokugeleza nakho kungasiza ekunembeni okuphansi. Uma ukugeleza kungasatshalaliswa ngokulinganayo kulo lonke ipayipi, i-Doppler flowmeter ingase ichaze kabi ijubane lokugeleza. Isibonelo, epayipini lapho kukhona ukuvinjelwa okuyingxenye kolunye uhlangothi, ukugeleza kuzophambuka, futhi ukulinganisa kwe-flowmeter ngokusekelwe ekucabangeni kokulingana kuzoba okungalungile.

Ama-flowmeter e-Doppler ultrasonicziyi-vulifaneleka emithonjeni yomsindo wangaphandle. Ukuphazamiseka kukagesi okuvela emishinini eseduze, njengezinjini, ama-transformer, noma amanye amadivayisi kagesi, kungaphazamisa isignali ye-ultrasonic. Ezindaweni zezimboni, lapho kunemishini kagesi eminingi eduze, lokhu kuphazamiseka kungaba yinkinga enkulu. Ngaphezu kwalokho, ukudlidliza komshini okuvela kumaphampu noma eminye imishini nakho kungathinta ukusebenza kwe-flowmeter ngokungenisa umsindo ongafuneki ohlelweni lokulinganisa.

Ukuba khona kwezithiyo noma izinguquko ezintweni zepayipi kungabangela ukubonakaliswa kwe-acoustic kanye nokugqagqana. Lapho isignali ye-ultrasonic ihlangana noshintsho ezintweni zodonga lwepayipi noma isakhiwo sangaphakathi, ingxenye yesignali ingase ibonakale noma igqagqane, iphambukise isignali yokuqala futhi iholele ekulinganisweni kwejubane lokugeleza okungalungile. Isibonelo, epayipini elinophahla noma ulwelwesi lwezinto ezihlukile, isignali ye-ultrasonic ingase ingasabalali njengoba bekulindelekile, okuholela emaphutheni okulinganisa.

Ekuphetheni, ukunemba okuphansi kwe-Doppu-lerama-flowmeter e-ultrasonickungabangelwa yi-ukuhlanganiswa kwezici ezihlobene nezici zezinhlayiya, amaphrofayili okugeleza ayinkimbinkimbi, kanye nokuphazamiseka kwesignali. Ukuqonda lezi zici kubalulekile konjiniyela kanye nabaqhubi ukuze benze izinqumo ezinolwazi mayelana nokusetshenziswa kwe-Doppler flowmeters kanye nokuthatha izinyathelo ezifanele zokunciphisa umthelela walezi mikhawulo.