Ezitshalweni zamakhemikhali, ukulinganisa amazinga oketshezi ngokunembile nangokwethembeka kubalulekile ukuze kugcinwe ukusebenza okuphephile nokusebenza kahle.Enye yezinzwa ezisetshenziswa kakhulu zesiginali ye-telemetry yesiginali yezinga le-liquid iyisidlulisi seleveli ye-static pressure liquid.Le ndlela ibala izinga le-liquid ngokulinganisa ingcindezi emile yekholomu ye-liquid emkhunjini.Kulesi sihloko, sizoxoxa ngamaphuzu abalulekile okukhetha kanye nezimo zokusebenzisa inzwa yezinga le-XDB502 yezinga le-liquid kumishini yamakhemikhali.
Izici Nezinzuzo
Inzwa yezinga le-liquid ye-XDB502 inezici ezimbalwa kanye nezinzuzo eziyenza ifanelekele uhla olubanzi lwezinhlelo zokusebenza ezitshalweni zamakhemikhali.Lokhu kubandakanya:
Ukusebenza kumazinga okushisa aphezulu, ukucindezela okuphezulu, i-viscosity ephezulu, kanye nezindawo ezibola kakhulu, okuyenza ifanele uhla olubanzi lwezinhlelo zokusebenza.
Ibanga elikhulu lokulinganisa elihluka ngokuya ngendawo, futhi awekho amabala angaboni.
Ukuthembeka okuphezulu, ukuzinza, impilo ende, nezindleko zokunakekela eziphansi.
Isilinganiso esinembayo esiphezulu, esinembayo esingafika ku-+0.075% esikalini esigcwele (fs) sabathumeli bezinga le-liquid ye-static pressure kanye no-+0.25% fs kubathumeli bezinga loketshezi lwe-static pressure yasekhaya.
Ukuzihlolela okuhlakaniphile nemisebenzi yokuhlela kude.
Izinketho ezihlukahlukene zokuphuma kwesignali, okuhlanganisa izivumelwano ezihlukene zamasiginali amanje we-4mA-20mA, amasignali we-pulse, namasiginali wokuxhumana kwe-fieldbus.
Amaphuzu Okukhetha
Lapho ukhetha i-static pressure liquid level transmitter, amaphuzu alandelayo kufanele abhekwe:
Uma ububanzi obulinganayo (ingcindezi ehlukile) ingaphansi kuka-5KPa futhi ukuminyana kwendawo elinganisiwe kushintsha ngaphezu kuka-5% yenani lomklamo, akufanele kusetshenziswe isidlulisi sezinga loketshezi lokucindezela okuhlukile.
Ukuvutha koketshezi, ukuqhuma, ubuthi, ukubola, i-viscosity, ukuba khona kwezinhlayiya ezimisiwe, ukuhwamuka, kanye nokuthambekela kokujiya emazingeni okushisa akuzungezile kufanele kucatshangelwe lapho kukhethwa isidlulisi.
I-transmitter ingaklanywa nge-flange eyodwa noma kabili.Kuma-transmitter e-flange amabili, ubude be-capillary kufanele bulingane.
Oketshezini oluthambekele ekubeni lube yikristalu, i-sedimentation, i-viscosity ephezulu, i-coking, noma i-polymerization, uhlobo lwe-diaphragm oluhlukanisayo lweleveli yokudlulisa uketshezi olunendlela yokufaka uphawu kufanele kukhethwe.
Ezimweni lapho isigaba segesi singancipha futhi isigaba soketshezi singahwamuka, futhi isiqukathi singaphansi kwezimo ezishisa kakhulu nezinomfutho ophezulu, i-condenser, isolator, kanye nesiqukathi sebhalansi kufanele kufakwe uma kusetshenziswa isidluliseli sezinga le-liquid esivamile esihlukanisa umehluko. ukulinganisa izinga le-liquid.
I-transmitter yezinga le-liquid ehlukanisiwe yangempela idinga ukuguqulwa kwebanga.Ngakho-ke, isidluliseli kufanele sibe nomsebenzi we-offset webanga, futhi inani le-offset kufanele okungenani libe ngu-100% womkhawulo ophezulu wobubanzi.Lapho ukhetha i-transmitter, i-offset kufanele icatshangelwe, ikakhulukazi uma kulinganiswa imidiya ephezulu kakhulu.Ngakho-ke, ububanzi be-transmitter kufanele bukhethwe ngokusekelwe esimweni se-offset.
Imibandela Yokusebenzisa
Inzwa yeleveli ye-XDB502 inezimo ezimbalwa zokusetshenziswa okufanele zicatshangelwe:
Izinga lokushisa lenqubo: Lolu hlobo lwesidlulisi lusebenza ngokudlulisela ingcindezi ngoketshezi lokugcwalisa oluvalwe ngaphakathi kwedivayisi.Iziphuzo ezijwayelekile zokugcwalisa zihlanganisa i-silicone engu-200, i-silicone engu-704, ama-hydrocarbons e-chlorinated, izingxube ze-glycerol namanzi, phakathi kokunye.Uketshezi ngalunye lokugcwalisa lunobubanzi obufanele bokushisa, futhi uhlobo lokugcwalisa kufanele lukhethwe ngokusekelwe kumakhemikhali amakhemikhali okulinganisa okulinganiselwe kanye nokushisa kwenqubo.Ngakho-ke, lapho izinga lokushisa lenqubo lingaphezu kuka-200℃, ukusetshenziswa kwesidlulisi esivalwe nge-diaphragm kufanele kubhekwe ngokucophelela.Uma kunesidingo, isistimu yokuvala enwetshiwe noma idivayisi yokuthuthukisa ukushisa kufanele kukhethwe, futhi umkhiqizi wokuthumela kufanele aqinisekise imininingwane.
Izinga lokushisa le-ambient: Uketshezi lokugcwalisa kufanele lugcwaliswe ezingeni lokushisa elifanele le-ambient.I-capillary kufanele igcinwe ihambisana nezinga lokushisa loketshezi lokugcwalisa.Njengoba i-epoxyethane kumadivayisi e-EOEG avuthayo ijwayele ukwenziwa i-polymerization, isidlulisi sezinga le-diaphragm esihlukanisayo esihlukanisayo soketshezi kufanele sisetshenziswe ukukala izinga le-epoxyethane medium.Njengoba izixazululo ze-carbonate zijwayele ukucwebezela, kufanele kusetshenziswe isidlulisi seleveli ye-diaphragm-sealed differential liquid level enohlelo lokufaka uphawu lokuvala kufanele kusetshenziswe, nendawo yokufaka eshaywa ngodonga lwangaphakathi lwempahla.Ububanzi nobude bangaphandle bokufaka kunqunywa ngokusekelwe ezicacisweni zemishini.Okokusebenza okunokushisa okusebenzayo kwesigubhu okungu-250 ℃ noma ngaphezulu, kufanele kusetshenziswe ipayipi elivamile elicindezelayo.
Isiphetho
Sengiphetha, inzwa yeleveli ye-XDB502 iyinketho ethembekile nenembile yokulinganisa amazinga oketshezi ezitshalweni zamakhemikhali.Inezinzuzo ezimbalwa, okuhlanganisa ububanzi obubanzi, ukunemba okuphezulu, izinketho ezihlukahlukene zokuphuma kwesignali, kanye nokuzihlola okuhlakaniphile.Lapho kukhethwa isidlulisi, izici zoketshezi, njengokuvutha, ukuqhuma, ubuthi, ukugqwala, kanye ne-viscosity, kufanele kucatshangelwe.Ukwengeza, izimo zokusetshenziswa ezifana nezinga lokushisa lenqubo kanye nezinga lokushisa le-ambient kufanele zicatshangelwe ukuze kuqinisekiswe izilinganiso ezinembile nezithembekile.
Isikhathi sokuthumela: May-08-2023