Umlinganiselo woxinzelelo olwahlukileyo udlala indima ebalulekileyo kwizicelo zeshishini kunye nezorhwebo, njengoko kubandakanya ukubeka iliso kunye nokulawula umahluko woxinzelelo phakathi kwamanqaku amabini ngaphakathi kwenkqubo. Le ndlela yokulinganisa ayiqinisekisi kuphela ukhuseleko lokusebenza kodwa iphakamisa ukusebenza kakuhle kwamandla kwaye iqinisekisa umgangatho weemveliso kunye neenkonzo. Kwiinkqubo zokufudumeza, zokungenisa umoya, kunye ne-air conditioning (HVAC), uxinzelelo oluhlukeneyo lusetyenziselwa ukubeka iliso ukuxhathisa ukuhamba komoya kwabalandeli, izihlungi, kunye nemigudu, ngaloo ndlela kuphuculwe ukusebenza kwenkqubo kunye nokunciphisa ukusetyenziswa kwamandla. Ngokufanayo, kwimveliso yeoli kunye negesi, unyango lwamanzi, kunye namashishini amayeza, ukulinganiswa koxinzelelo oluhlukeneyo kubalulekile ekubekeni iliso ukuhamba kwamanzi, ukucoca, kunye nokusebenza kwempompo, ukunceda ukugcina ukusebenza kwenkqubo eqhelekileyo kunye nokuthintela iingozi ezinokubakho.
Abathumeli boxinzelelo olwahlukileyo zizixhobo eziphambili zokufezekisa le njongo. Banokuguqula ukungafani koxinzelelo lomzimba kwiimpawu zombane, ezinokuthi zisetyenziswe ukubeka iliso kunye nokulawula iinjongo. Ngokusebenzisa izinto ezinobunzima boxinzelelo ezifana ne-diaphragms, i-strain gauges, okanye i-piezoelectric crystals, ii-transmitter zoxinzelelo ezihlukeneyo zilinganisa ngokuchanekileyo iiyantlukwano zoxinzelelo kwaye zivelise iimpawu zemveliso ye-4-20 mA okanye i-0-10 V. Le miqondiso inokudluliselwa ngakumbi kwiideshibhodi, ukufumana idatha iisistim, okanye iinkqubo zolawulo zokubekwa kweliso ngexesha lokwenyani kunye nohlengahlengiso.
Ukusetyenziswa komlinganiselo woxinzelelo olwahlukileyo kubanzi. Ayincedi kuphela ekuqinisekiseni ukusebenza ngokukhuselekileyo kwezixhobo zoshishino kunye neenkqubo, ukuphepha uxinzelelo olugqithisileyo kunye nemingcipheko enxulumene noko kodwa ikwaphucula ukusebenza kakuhle kwamandla kunye nomgangatho wemveliso ngokusebenza okulungisiweyo. Kwishishini lamachiza, ukulinganiswa koxinzelelo oluhlukeneyo kuqinisekisa ukuchaneka kweenkqubo zokuvutshelwa kunye nokucoca, ukuqinisekisa ukuba umkhiqizo wokugqibela udibana neenkcukacha kunye nokugcina ukuthembela kwabathengi kwi-brand. Ke ngoko, ngokweembono zokhuseleko, ukusebenza kakuhle, kunye nokuqinisekiswa komgangatho, uxinzelelo olwahlukileyo kunye nomlinganiselo walo zizinto eziyimfuneko kwimisebenzi yanamhlanje yezoshishino kunye nezorhwebo.
Usetyenziso lweZithuthi zoxinzelelo olwahlukileyo
Abathumeli boxinzelelo abahlukeneyo zizinto eziyimfuneko kwimizi-mveliso ezenzekelayo. Ngokuchaneka kwabo okuphezulu kunye nokuzinza, badlala indima ebalulekileyo kumashishini ahlukeneyo anje ngepetrochemicals, ukuveliswa kwamandla, i-metallurgy, unyango lwamanzi, ukutya kunye neziselo, kunye namayeza. Ezi zixhobo ngokuyinhloko zisebenzisa imigaqo yenyama, njenge-equation yeBernoulli kunye nomgaqo woxinzelelo lwe-static, ukulinganisa ukuhamba, inqanaba le-liquid, kunye nesimo sezihlungi, ngaloo ndlela zibonelela ngedatha ebalulekileyo ukuxhasa iinkqubo zokuvelisa kunye nokubeka iliso.
Umlinganiselo wokuqukuqela yeyona ndawo iphambili yokusetyenziswa koomatshini boxinzelelo abahlukeneyo. Ngokulinganisa umahluko woxinzelelo owenziweyo xa ulwelo luhamba ngesixhobo sokutshiza, isantya sokuhamba kweoli, igesi yendalo, umphunga, kunye nolunye ulwelo lunokubalwa ngokuchanekileyo. Ukongeza, abathumeli boxinzelelo olwahlukileyo babonakalise ixabiso labo kumlinganiso wenqanaba lolwelo, bejonga ngokuchanekileyo umphakamo wenqanaba lolwelo kwiitanki zokugcina, iibhoyila, kunye neereactors, ezibaluleke kakhulu ekuqinisekiseni ukhuseleko lwemveliso kunye nokusebenza kakuhle.
Uhlolo lwesihluzi sesinye isicelo esingundoqo. Abathumeli boxinzelelo abahlukeneyo babonisa ukuba isihluzo sivalwe ngokubona utshintsho kumohluko woxinzelelo ngaphambi nangemva kwesihluzi, ngaloo ndlela siqinisekisa ukusebenza okuqhelekileyo kwenkqubo. Ngaphandle kwezi zicelo zikhethekileyo, izidluliseli zoxinzelelo olwahlukileyo zikwasetyenziswa ngokubanzi ukujonga ukuvuza kwemibhobho, ukusebenza kwempompo, kunye nobume beevalvu. Ngokubeka esweni utshintsho kwiiyantlukwano zoxinzelelo, banikezela ngenkxaso yedatha ethembekileyo yokugcina ukusebenza kakuhle kwenkqubo.
Abathumeli boxinzelelo abahlukeneyo nabo badlala indima ebalulekileyo ekubekweni iliso kokusingqongileyo, ngakumbi ekujongeni umgangatho womoya. Ngokulinganisa umahluko woxinzelelo phakathi kweendawo ezahlukeneyo emoyeni, ezi zixhobo zinokubala ngokuchanekileyo isantya somoya kunye nomthamo, ngaloo ndlela zibeke iliso kugxininiso lwento ethile efana ne-PM2.5 kunye ne-PM10, kunye neegesi ezinjenge-SO2 kunye ne-NO2. Ukongeza, badlala indima ephambili ekubekeni iliso kukukhutshwa kwemizi-mveliso, ukukhupha izithuthi, kunye nomgangatho womoya wangaphakathi.
Ekubekweni kweliso kwigumbi elicocekileyo, abathumeli boxinzelelo olwahlukileyo baqinisekisa ukuba ukucoceka komoya kuyahlangabezana nemigangatho ngokubeka esweni umahluko woxinzelelo ngaphakathi kumagumbi acocekileyo, okubalulekileyo kulawulo lomgangatho kumayeza, ombane kunye nakumashishini okutya. Ngaphaya kokujongwa komgangatho womoya, ezi zithuthi zikwasetyenziswa ekubekweni iliso komgangatho wamanzi, ukufuma komhlaba, kunye nokuqwalaselwa kwemeko yemozulu, ebonisa ukuguquguquka kwazo kwindawo yokubeka iliso kokusingqongileyo.
Ngenxa yokuchaneka komlinganiselo ophezulu (ukuya kuthi ga kwi-0.1% -0.5%), ukuzinza okugqwesileyo kwexesha elide, kunye noluhlu olubanzi lwesicelo, kudibaniswa nokulula kokufakela kunye nokugcinwa, ii-transmitter zoxinzelelo ezihlukeneyo ziye zaba zizixhobo eziyimfuneko ekubekweni iliso kokusingqongileyo. Njengoko ulwazi ngokhuseleko lokusingqongileyo lukhula, kulindeleke ukuba abathumeli boxinzelelo olwahlukileyo baya kubona izicelo ezibanzi kwixesha elizayo. Ngenkqubela phambili yetekhnoloji, ukusebenza kwabo komlinganiselo kunye nobubanzi besicelo kulindeleke ukuba kwandiswe ngakumbi, ukubonelela ngenkxaso yedatha echanekileyo nethembekileyo yokhuseleko lokusingqongileyo.
Ukubala Uxinzelelo olwahlukileyo
Ukubalwa koxinzelelo olwahlukileyo linyathelo elibalulekileyo kwishishini kunye nezicelo zorhwebo, ngakumbi kumlinganiso wokuhamba, umlinganiselo wenqanaba lolwelo, kunye nokuhlolwa kwesihluzi. Uxinzelelo olwahlukileyo, umahluko phakathi koxinzelelo phakathi kwamanqaku amabini ngaphakathi kwenkqubo, yingcinga engundoqo yomzimba. Ifomula yayo yokubala ilula kodwa iyasebenza: uxinzelelo lokwahlukana (Pd) lilingana noxinzelelo lwecala eliphezulu (Ph) thabatha uxinzelelo olusezantsi (Pl), kwaye lunokubonakaliswa kwiiyunithi ezahlukeneyo ezifana nePascal (Pa), iipounds per square intshi (PSI) ), okanye ibha.
Ukubala uxinzelelo oluhlukeneyo lubandakanya amanyathelo abalulekileyo amaninzi: okokuqala kukulungiselela, ukuqinisekisa ukufakela okuchanekileyo kunye nokudibanisa i-different pressure transmitter; okulandelayo kukwenza ukubala, ukufumana iziphumo ngefomula yoxinzelelo lokwahlukana; ekugqibeleni, iiyunithi ukuguqula njengoko kuyimfuneko. Umzekelo, ukuba uxinzelelo oluphezulu lwenkqubo yi-100 PSI kwaye uxinzelelo olusezantsi luyi-50 PSI, ngoko ke umahluko woxinzelelo ngu-50 PSI.
Ukuchaneka komlinganiselo woxinzelelo olwahlukileyo kuphenjelelwa zizinto ezahlukeneyo, kubandakanywa ukuchaneka kwenzwa, ukuvuza okunokwenzeka, utshintsho kwiqondo lokushisa lokusingqongileyo, kunye nokungcangcazela. Ngaphezu koko, ngokuxhomekeke kwisicelo, kukho iindidi ezahlukeneyo zothutho loxinzelelo olwahlukileyo, olufana ne-capacitive, piezoresistive, kunye ne-piezoelectric, nganye ifanele indawo ethile yokulinganisa kunye neemfuno.
Uluhlu lwesicelo soxinzelelo oluhlukeneyo lubanzi kakhulu, alukhawulelwanga ekuhambeni kokubeka iliso, inqanaba lolwelo, kunye nezihlungi, kodwa luquka ulawulo loxinzelelo phakathi kwezinye iindawo. Umlinganiselo ochanekileyo woxinzelelo oluchanekileyo uyimfuneko ekuqinisekiseni ukusebenza ngokufanelekileyo kweenkqubo zoshishino, ukuphucula ukusebenza kwezixhobo, kunye nokuqinisekisa ukhuseleko kwimveliso. Ke ngoko, ukuqonda imigaqo esisiseko yoxinzelelo olwahlukileyo, iindlela zokubala, kunye nendima yayo kwizicelo ezahlukeneyo sisakhono esisisiseko nesibalulekileyo kwiinjineli kunye nabasebenzi bezobugcisa.
Ixesha lokuposa: Mar-28-2024