1. Kuthekera kwa Ultrasonic Flowmeters pa Mayankho a Asidi/Alkaline
Inde, ma flowmeter a ultrasonic amatha kuyeza bwino mayankho a acidic ndi alkaline, koma kuyenerera kwawo kumadalira makamaka kusankha zinthu za transducer ndi mtundu wa kukhazikitsa—zinthu ziwiri zomwe zimayang'ana mwachindunji momwe madzi awa amawonongeka. Mosiyana ndi ma electromagnetic flowmeters (monga ma electromagnetic flowmeters okhala ndi ma electrodes amkati) omwe amaika pangozi dzimbiri chifukwa chokhudzana mwachindunji ndi ma acid/bases amphamvu, ma ultrasonic flowmeters (makamaka ma clamp-on models) amachepetsa kukhudzana kwa madzi mwa kuyika ma transducers kunja kwa payipi. Pa ma flowmeter a ultrasonic omwe ali pamzere (komwe ma transducers amakumana ndi yankho), kugwiritsa ntchito zinthu zosagwira dzimbiri monga PTFE (polytetrafluoroethylene), ceramic, kapena Hastelloy kumatsimikizira kuti zimagwirizana ndi madzi amphamvu monga sulfuric acid, hydrochloric acid, kapena sodium hydroxide. Bola ngati zinthu za transducer zikugwirizana ndi dzimbiri la yankho ndipo zinthu za payipi (monga PVC, PVDF ya madzi acidic) zikugwirizana, ma flowmeter a ultrasonic amakhalabe ndi magwiridwe antchito okhazikika popanda kuwonongeka.
2. Ubwino Wofunika Poyerekeza ndi Mamita Achikhalidwe a Madzi Owononga
Ma ultrasound flowmeters amapereka ubwino wapadera poyesa njira zothetsera asidi/alkaline, pothetsa mavuto a ukadaulo wachikhalidwe woyezera:
- Palibe Kuwonongeka Koyambitsidwa ndi Dzimbiri: Mosiyana ndi makina oyezera madzi (monga ma turbine mita) okhala ndi zinthu zoyenda zomwe zimawononga ndi kudzaza, kapena ma electromagnetic mita okhala ndi ma electrode achitsulo omwe amatha kugwidwa ndi asidi/alkali, ma ultrasonic flowmeter (clamp-on) alibe zinthu zomwe zimakhudzana mwachindunji ndi yankho. Ma model omwe ali pamzere amagwiritsa ntchito zinthu zosagwira ntchito, zomwe zimachotsa kutayika kolondola kokhudzana ndi dzimbiri kapena kulephera kwa chipangizo.
- Osakhudzidwa ndi Kuyenda kwa Madzi: Mayankho a asidi ndi a alkaline amasiyana kwambiri mu kuyenda kwa madzi (monga, acetic acid yochepetsedwa imakhala ndi kuyenda kochepa, pomwe sodium hydroxide yokhazikika imakhala ndi kuyenda kwakukulu). Ma electromagnetic flowmeters amadalira kuyenda kwa madzi kuti agwire ntchito ndipo amatha kulephera ndi ma acid otsika, koma ma ultrasound flowmeters amayesa kuyenda kudzera mu kufalikira kwa mafunde a mawu—kuyenda, kukhuthala, kapena kapangidwe ka mankhwala ka yankho sikusokoneza kuwerenga kwawo.
- Kusamalira Kochepa: Madzi owononga nthawi zambiri amachititsa kuti mita yachikhalidwe isamalidwe kawirikawiri (monga, kusintha ma electrode owononga kapena zida zamakanika). Ma ultrasound flowmeter, opanda zida zosuntha kapena zida zowononga, amangofunika kuyang'ana nthawi ndi nthawi momwe transducer imayendera kapena momwe khoma la chitoliro lilili, kuchepetsa nthawi yogwira ntchito komanso ndalama zokonzera.
3. Mfundo Zofunika Kwambiri Zokhudza Kuyeza Kodalirika
Kuti muwonetsetse kuti njira zoyezera acidity/alkaline zikuyesedwa molondola komanso kwa nthawi yayitali, zinthu zitatu zofunika ziyenera kuyikidwa patsogolo:
- Kugwirizana kwa Zinthu za Transducer: Sankhani zipangizo kutengera mphamvu ndi mtundu wa yankho. Mwachitsanzo, PTFE imagwira ntchito pa ma asidi ambiri amphamvu (kupatula hydrofluoric acid yotentha kwambiri), pomwe ma transducer a ceramic amagwira ntchito pa ma alkaline otentha kwambiri (monga, 80°C sodium hydroxide). Pewani kugwiritsa ntchito ma transducer achitsulo (monga, chitsulo chosapanga dzimbiri) pamadzimadzi amphamvu owononga, chifukwa amawonongeka pakapita nthawi.
- Mkhalidwe ndi Zipangizo za Chitoliro: Chitolirocho chiyenera kupirira dzimbiri—njira zodziwika bwino zikuphatikizapo PVDF (ya ma asidi amphamvu), PVC (ya ma asidi/maziko ofatsa), kapena chitsulo chokhala ndi galasi (ya madzi otentha kwambiri owononga). Khoma la chitoliro lowonongeka kapena lozimiririka likhoza kusokoneza zizindikiro za ultrasound, zomwe zimapangitsa kuti pakhale zolakwika muyeso; onetsetsani kuti chitolirocho chili bwino ndipo chili ndi malo osalala mkati.
- Malire a Kutentha ndi Kupanikizika: Ma asidi/mabowo amphamvu amatha kugwira ntchito kutentha kwambiri (monga, sulfuric acid yapamwamba kwambiri pa 60–80°C) kapena kupsinjika. Tsimikizirani kuti ultrasound flowmeter ikugwira ntchito ikugwirizana ndi kutentha ndi kupsinjika kwa yankho—kupitirira malire awa kungawononge ma transducer kapena kuchepetsa kulondola kwa chizindikiro. Pakugwiritsa ntchito kutentha kwambiri, sankhani ma transducers osatentha kwambiri (monga, ma ceramic models omwe adavotera mpaka 150°C).
Chidule
Ma ultrasonic flowmeter ndi njira yabwino komanso yodalirika yoyezera mayankho a acidic ndi alkaline, bola ngati zinthu zosinthira zikugwirizana ndi kuwonongeka kwa madzi, ndipo momwe mapaipi amagwirira ntchito zikukwaniritsa zofunikira zoyambira. Kapangidwe kake kosalowerera (kwa zitsanzo zomangira) kapena zigawo zolumikizana zomwe sizimakhudzidwa ndi dzimbiri, kuphatikiza ndi chitetezo ku mayendedwe amadzimadzi, zimawapangitsa kukhala apamwamba kuposa mita yachikhalidwe m'malo owononga. Mwa kuthana ndi kuyanjana kwa zinthu, momwe mapaipi alili, ndi malire ogwirira ntchito, ma ultrasonic flowmeter amapereka muyeso wolondola komanso wosasamalira bwino wa madzi amafakitale, mankhwala, kapena madzi otayira omwe amagwiritsa ntchito madzi a acidic/alkaline.
Nthawi yotumizira: Ogasiti-29-2025