Ezingqungqutheleni zokukhiqiza amakhemikhali, isilinganiso samagesi aluhlaza sinquma ikhwalithi yomkhiqizo; Emkhakheni wokuqapha imvelo, idatha yokugeleza kwegesi ephumayo ihlobene nokusebenza kahle kokulawulwa kwemvelo... Kulezi zimo,amamitha okugeleza kwegesi eshisayobaye baba "impahla eshisayo" embonini ngenxa yekhono labo lokulinganisa ngokunembile ukugeleza kwegesi ngaphandle kwesinxephezelo sokushisa nokucindezela. Futhi isistimu yesifunda ngemuva kwayo "ingqondo ehlakaniphile" efinyelela lokhu kusebenza okuvelele. Namuhla, sizokuthatha ukuze usihlole!
I-flowmeter yegesi eshisayo iklanywe ngokusekelwe kumgomo wokusabalalisa okushisayo, futhi isebenzisa indlela yomehluko wezinga lokushisa engashintshi ukulinganisa amagesi ngokunembile. Inezinzuzo zosayizi omncane, izinga eliphezulu ledijithali, ukufakwa kalula, nokulinganisa okunembile.
Imojula engumongo wesiyingi:
Ukujikeleza kwenzwa:
Ingxenye yenzwa iqukethe izinzwa ezimbili zezinga lereferensi zeplatinamu lokushisa. Lapho ithuluzi lisebenza, inzwa eyodwa ngokuqhubekayo ikala izinga lokushisa eliphakathi nendawo T1; enye inzwa izifudumeza ifike kumazinga okushisa aphakeme kune-T2 emaphakathi futhi isetshenziselwa ukuzwa isivinini sokugeleza koketshezi, okwaziwa ngokuthi inzwa yesivinini. Izinga lokushisa Δ T=T2-T1, T2>T1. Uma uketshezi lugeleza, ama-molecule egesi ashayisana nenzwa futhi asuse ukushisa kwe-T2, okwenza izinga lokushisa le-T2 lehle. Ukuze ugcine i-Δ T ingashintshi, amandla okunikezwa kwamandla we-T2 adinga ukukhushulwa. Ngokusheshisa izinga lokugeleza kwegesi, kulapho kukhishwa khona ukushisa okwengeziwe. Kunobudlelwano obumisiwe obusebenzayo phakathi kwezinga lokugeleza kwegesi kanye nokushisa okwenyukile, okuyisimiso sokuhluka kwezinga lokushisa okungashintshi.
Isekhethi ye-Signal conditioning:
Amasignali aphuma ezinzwa ngokuvamile aqukethe ukungcola okunjengokuphazamiseka kazibuthe kagesi nomsindo wendawo. Isekhethi yokumisa isignali ifana "nenkosi yokuhlanza isignali", okokuqala isebenzisa ibhuloho le-Wheatstone ukukhulisa amasiginali omehluko obuthakathaka wokushisa ngamashumi noma ngisho namakhulu ezikhathi, kuthuthukise amandla esignali; Khona-ke, ngomjikelezo wokuhlunga we-low-pass, amasignali okuthikamezeka kwemvamisa ephezulu ahlungwa njengesihlungi, agcine kuphela amasiginali asebenzayo ahlobene nezinga lokugeleza kwegesi. Ngemva kokulungiswa ngokucophelela okunjalo, isignali iba msulwa futhi izinzile, ibeka isisekelo sokubala okunembile kwesilinganiso sokugeleza kwegesi.
Ukucubungula idatha kanye nesekhethi yokuxhumana:
Isignali enesimo ingena kumjikelezo wokucubungula idatha futhi iyalwa yi-microprocessor esebenza kahle kakhulu. I-microprocessor ngokushesha nangokunembile iguqula isignali yomehluko wezinga lokushisa ibe inani lokugeleza kwegesi elisuselwe ku-algorithm esethwe ngaphambilini. Esigabeni sokuphumayo, izivumelwano eziningi zokuxhumana ziyasekelwa, futhi amasiginali e-analogi angu-4-20mA afanele izinhlelo zokulawula zezimboni zendabuko. Ukuxhumana kwe-HART, i-alamu edluliswayo, ukudluliswa kwe-Ethernet, inkundla yenethiwekhi yezinto ezibonakalayo ye-4G, iphrothokholi yokuxhumana yedijithali ye-Modbus RTU isiza ukushintshaniswa kwedatha ngamathuluzi ahlakaniphile namakhompyutha aphezulu, iqaphela ukuqapha okukude nokulawula okuzenzakalelayo, nokwenza idatha yokugeleza kwegesi "isebenze".
II-thermal gas mass flowmeterekhiqizwe i-Angji Instrument inohlelo lwesekethe, olunamandla okukala ngokunemba okuphezulu okungu-± 0.2%, olulawula ukushintshashintsha kokugeleza kwegesi phakathi kwebanga elincane kakhulu, lithuthukisa kakhulu ukuzinza kwezinqubo zokukhiqiza ama-chip. Emkhakheni wokulinganisa igesi yemvelo, ebhekene nengcindezi eyinkimbinkimbi kanye nezinguquko zokushisa kumapayipi, uhlelo lwesifunda lwe-thermal gas mass flowmeter lunenzuzo yesilinganiso esibanzi (kufika ku-100: 1). Kungakhathaliseki ukuthi ukutholwa kokuvuza kwamapayipi agelezayo noma ukukhokhwa kohwebo kokugeleza okuphezulu, ingakala ngokunembile futhi isize amabhizinisi ukuzuza ukuphathwa kwamandla okuphumelelayo.
II-thermal gas mass flowmeterisifunda, ngokuklama kwayo okuhle kanye nemisebenzi enamandla, inikeza izixazululo ezinokwethenjelwa zokulinganisa ukugeleza kwegesi zokukhiqiza ezimbonini, ukuqapha imvelo kanye neminye imikhakha. I-Shanghai Angji Instrument Co., Ltd. inamasekhethi ashisayo, afaka i-plug-in ehlanganisiwe, ipayipi, nodonga oluhlukanisiwe olufakiwe, futhi isekela ukwenza ngokwezifiso ngefoni.
Isikhathi sokuthumela: Jun-05-2025