Ukulinganisa izinga kungaba yipharamitha yokusebenza ebalulekile ezimbonini kusukela kuwoyela negesi kuya ekuhlanzeni amanzi. Phakathi kobuchwepheshe obuhlukahlukene obutholakalayo, ama-transmitters we-pressure and differential pressure (DP) asetshenziswa kabanzi njengamadivayisi okuqapha izinga loketshezi. Emgogodleni waso, isilinganiso sezinga elisekelwe kungcindezi esisungulwe kumgomo we-hydrostatic pressure, amandla asetshenziswa uketshezi ekuphumuleni ngenxa yamandla adonsela phansi. Ingcindezi kunoma iyiphi indawo kukholamu yoketshezi ilingana nobude obungaphezu kwalelo phuzu, ukuminyana kwayo, kanye nokusheshisa kwamandla adonsela phansi. Ubudlelwano buboniswa ngefomula:
P = ρ × g × h
Kuphi:
P = Ukucindezela kwe-Hydrostatic
ρ = Ukuminyana kwamanzi
g = Ukusheshisa kwamandla adonsela phansi
h = Ukuphakama kwekholomu yoketshezi
Inzwa yokucindezela ebekwe ngaphansi kwethangi ingakala lokhu kucindezela, bese ibala izinga loketshezi futhi iliguqulele kusignali kagesi ngesekhethi inqobo nje uma kwaziwa ukuminyana okuphakathi nendawo.
Womabili ama-Pressure and Differential Pressure Transmitters angasetshenziselwa ukulinganisa izinga, kodwa izinhlelo zawo zokusebenza ziyehluka ngokuya ngesimo sokusebenza:
I-Pressure Transmitter
Isilinganiso:Ingcindezi ehlobene nomfutho womkhathi.
Isimo sokusebenzisa:Ilungele amathangi avulekile noma amashaneli lapho uketshezi oluningi luvezwa khona emkhathini. Isibonelo, endaweni yokugcina amanzi, okukhiphayo komthumeli kuhlobana ngokuhambisana nezinga lamanzi.
Ukufakwa:Igxunyekwe phansi kwethangi noma icwiliswe ngaphansi koketshezi.
I-Differential Pressure (DP) Transmitter
Isilinganiso:Umehluko phakathi kwezingcindezi ezimbili: ingcindezi ye-hydrostatic phansi kwethangi kanye nengcindezi engaphezu koketshezi.
Isimo sokusebenzisa:Ibalulekile emathangeni avaliwe/acindezelekile lapho ukucindezela kwangaphakathi (kusuka kumagesi, izihwamuko, noma i-vacuum) kuthinta isilinganiso. Isilinganiso se-DP siyakwazi ukunxephezela ukuhlanekezela futhi siqinisekise idatha yezinga elinembile.
Ukufakwa:Uhlangothi lwengcindezi ephezulu luxhumeka kusisekelo sethangi kuyilapho uhlangothi olunomfutho ophansi luxhumeka phezulu kwethangi.
Ukusethwa kokhiye esilinganisweni sezinga elisuselwa kungcindezi
Ukuzijwayeza Ukukhweza:Ama-transmitters kufanele afakwe ezingeni eliphansi loketshezi elilindelekile ukuze kugwenywe ukulinganisa okomile. Ukwakheka komkhumbi nesimo kufanele kuqinisekise ukuthi izinzwa ezingaphansi kwamanzi zingacwiliswa ngokuqhubekayo ngaphansi. Amashubhu kalayini we-impulse we-DP transmitter kumele angabi nazingqinamba, avuze namabhamuza egesi.
Isimo Semvelo Nesimaphakathi:Ukuxhuma okukude kwe-capillary kungasetshenziswa ukuze uhlukanise izinzwa ekushiseni ukuze kuvinjelwe ukulimala kwe-elekthronikhi ekushiseni okwedlulele koketshezi. Ukuxhumana kwenqubo ngezigxivizo ze-diaphragm noma izinto ezimelana nokubola kungavikela inzwa kuketshezi olunamandla. Isilinganiso somfutho we-Transmitter kufanele sidlule ukucindezela okukhulu kokusebenza okuhlanganisa nezimo zokuhlinzwa.
Isici Esithuthukisiwe Nokuhlanganiswa:Ubuchwepheshe besimanje bungethulwa ukuze kuthuthukiswe ukwethembeka kwezinsimbi. Ukuxhumana okuhlakaniphile kunika amandla ukuhlanganiswa okushelelayo nezinhlelo zokulawula kanye nokuxilongwa kwesikhathi sangempela okuxwayisa amaphutha noma ukuvinjwa. Ama-transmitter aguquguqukayo amaningi akala izinga nezinga lokushisa ngesikhathi esisodwa angenza ukufakwa kube lula futhi anciphise izindleko.
Izidlulisi zengcindezi nomehluko zingamathuluzi ahlukahlukene okulinganisa izinga, anikeza ukusebenza kahle kwezindleko nokuvumelana nezimo kuzo zonke izimboni.Shanghai Wangyuanungumkhiqizi onesipiliyoni osebenza embonini yezinsimbi. singajabula ukuzwa kuwe, uma udinga izixazululo zokuqapha ezingeni.
Isikhathi sokuthumela: Feb-11-2025