Abathumeli boxinzeleloZihlala zenzelwe ukuqokelelwa kwedatha kwiindawo zokusebenza, ezikwaziyo ukuvelisa imiqondiso esemgangathweni kunye nokubonelela ngeenkqubo zolawulo ngedatha yokulinganisa ezinzileyo nethembekileyo. Ngokwembono yemigaqo yokulinganisa, uxinzelelo lwe-medium elinganisiweyo aluyonto nje kuphela iparameter yenkqubo ehlukanisiweyo—ngokusisiseko lubonisa iimpawu ezidibeneyo zolwelo oluphakathi phantsi kweemeko ezizinzileyo nezitshintshayo. Ngokusebenzisa ngokupheleleyo ubudlelwane obungaphakathi, kunokwenzeka ukufumana iiparameter zenkqubo ezibalulekileyo ezifana nenqanaba lolwelo kunye nesantya sokuhamba komlinganiselo womthumeli woxinzelelo ngaphandle kokongeza ii-sensors ezongezelelweyo. Inzuzo eyahlukileyo yenza ukuba abathumeli boxinzelelo bangabalulekanga xa kusakhiwa izisombululo zokulinganisa ezinokuthenjwa kakhulu kwiinkqubo zoshishino ezintsonkothileyo.
Ukulinganiswa kweNqanaba loXinzelelo oluZinzileyo
Kwi-liquid engashukumiyo, uxinzelelo olungashukumiyo kuyo nayiphi na inzulu lunokuchazwa ngefomula yoxinzelelo lolwelo P = ρgh. Ngokusekelwe kumgaqo, isignali yokuphuma kwe-pressure transmitter ibonisa ubudlelwane obuhambelanayo nokuphakama kwenqanaba lolwelo. Indlela yokulinganisa ifanelekile ngokukodwa kwiimeko zokusebenza ezinzima kunye nezicelo ezifuna impendulo ekhawulezileyo. Olu hlobo lokulinganisa lungasetyenziswa kakhulu kwiimeko ezifana neetanki zokugcina iikhemikhali, izitya zokubilisa amayeza kunye neesump zamanzi amdaka zikamasipala.
Kwizicelo zoshishino,izithumeli ezingaphantsi komhlabakunye neetransmitter zoxinzelelo eziqhelekileyo zombini zisebenza ngokomgaqo wokulinganisa uxinzelelo olungashukumiyo, kodwa zahlukile kwisakhiwo, ukufakwa kunye neemeko ezifanelekileyo. Iitransmitter ezingaphantsi komhlaba zincinci kwaye kulula ukuzifaka, kunye ne-sensor probe ebekwe ezantsi kolwelo ixesha elide. Zilungele iindawo ezifana nemithombo enzulu, iitanki zamanzi kunye neenqanawa zokugcina ezivulekileyo. Iitransmitter zoxinzelelo zifakelwa ngaphandle kwenqanawa kwaye zinokuphatha amaqondo obushushu aphezulu kunye neenkqubo zococeko ngemilinganiselo efana neisitywino se-diaphragmkunye ne-capillary ekude.
Umlinganiselo woNxibelelwano loXinzelelo olwahlukileyo
Kwisikhongozeli esivaliweyo esinoxinzelelo lwesigaba segesi olutshintshatshintshayo, ukusebenzisa isixhobo sokudlulisa uxinzelelo kuphela kuvelisa uxinzelelo lwe-hydrostatic kunye noxinzelelo lwesigaba segesi, olungenakubonakalisa inqanaba lokwenyani lolwelo. Ke ngoko,umthumeli woxinzelelo olwahlukileyo (DP)kufuneka kusetyenziswe, kuqhagamshelwe icala elinoxinzelelo oluphezulu ezantsi (uxinzelelo olumileyo + uxinzelelo lwesigaba segesi) kunye necala elinoxinzelelo oluphantsi phezulu (uxinzelelo lwesigaba segesi kuphela). Ngokubala umahluko woxinzelelo, ukuphazamiseka koxinzelelo lwesigaba segesi kuyasuswa, okuvelisa isignali ehambelana kuphela nenqanaba lolwelo. Olu hlobo lokulinganisa lusetyenziswa kakhulu kwii-reactors zeekhemikhali, iikholamu zokunyibilikisa kunye nezinye izicelo apho ulawulo oluzinzileyo lwenqanaba phantsi kweemeko ezixinzelelweyo lufuneka khona. Kwiindawo zobushushu obuphezulu kunye neendaba ezirhabaxa,inkqubo ye-capillary ene-flange ezimbiniNgokwesiqhelo yenzelwe ukwahlula indlela yokusebenza ekudibaneni ngqo nesixhobo sokuva, ngaloo ndlela iphucula uzinzo lwesixhobo ixesha elide kwiimeko ezinzima.
Umlinganiselo wokuhamba koxinzelelo olwahlukileyo
Isiseko sokulinganisa ukuhamba kwe-DP kukuba xa ulwelo luhamba ngesixhobo sokuthomalalisa (ipleyiti ye-orifice, i-annubar, njl.njl.), utshintsho lwe-flow cross-section lubangela ukuba isantya sokuhamba sitshintshe ngokufanelekileyo kwaye kudalwe umahluko woxinzelelo kwi-throttling element enobudlelwane obucacileyo bokusebenza kunye nesantya sokuhamba. Ngokulinganisa ngokuchanekileyo umahluko woxinzelelo nge-DP transmitter, isantya sokuhamba sinokumiselwa ngokungathanga ngqo. Ngenxa yenqanaba layo eliphezulu lokumisela, ukuzivumelanisa nezimo okugqwesileyo, kunye nokufaneleka phantsi kweemeko ezinzima,Ii-flowmeters ezisekwe kwi-DPibambe indawo engenakutshintshwa kumlinganiselo wokuhamba komphunga kunye neegesi kunye nomatshini wokudlulisa uxinzelelo olwahlukileyo udlala indima ebalulekileyo njengento eyintloko yokuva.
Isithumeli soxinzelelo asisosixhobo esibonelela ngokufunda nje kuphela, ixabiso laso lokwenyani likwitoliko enzulu kunye nokusetyenziswa okuguquguqukayo kwedatha yokulinganisa. Ukuqonda ngokupheleleyo nokusebenzisa ngobuchule ubudlelwane obusemzimbeni obusemva kwedatha yokulinganisa uxinzelelo kunokuvula iindlela ezisebenzayo nezichanekileyo zolawulo lwenkqubo kunye nokwenza ngcono inkqubo. Ingcali ekuveliseni nasekuboneleleni izixhobo kangangeminyaka engaphezu kwama-20,Shanghai Wangyuanizimisele ukubonelela abathengi ngemveliso kunye neenkonzo ezizinzileyo nezithembekileyo. Nokuba unayo nayiphi na imfuno okanye imibuzo malunga nokukhetha okanye ukusetyenziswa kwee-pressure transmitters, nceda uzive ukhululekile ukunxibelelana nathi. Siya kukuvuyela ukukunika izisombululo zobungcali nezifike ngexesha elifanelekileyo.
Ixesha leposi: Epreli-02-2026