Lub hauv paus ntsiab lus ua haujlwm ntawm tsau cl2 gas detectoryog tsim los ntawm electrochemical lossis infrared nqus tshuab. Lub hauv paus yog los hloov cov tshuaj chlorine concentration rau hauv lub teeb liab ntsuas los ntawm cov tshuaj tiv thaiv los yog kho qhov muag. Cov ntsiab lus yog raws li nram no:
1. Electrochemical txoj cai: chlorine nkag mus rau hauv lub sensor los ntawm breathable membrane thiab undergoes redox cov tshuaj tiv thaiv nrog cov electrolyte ntawm cov electrode ua hauj lwm thiab siv electrode; cov generated tam sim no yog linearly ntsig txog cov chlorine concentration. Lub microcurrent tau ua tiav los ntawm kev nthuav dav Circuit Court, hloov mus rau hauv lub teeb liab hluav taws xob, thiab tom qab ntawd tso tawm tus nqi digital concentration los ntawm analog - mus rau - digital conversion.
(1) Cov ntsiab lus tseem ceeb
Breathable membrane: Selectively permeates chlorine molecules thiab thaiv plua plav / dej vapor cuam tshuam
Ua hauj lwm electrode: Catalyzes chlorine txo cov tshuaj tiv thaiv (kub / platinum khoom)
Counter electrode: Tswj cov nqi sib npaug (feem ntau siv cov khoom siv lead lossis cov khoom siv carbon)
Electrolyte: Muab ion - ua nruab nrab (kua lossis khoom polymer)
Lub teeb liab processor: Amplifies microcurrent thiab linearizes nws mus rau hauv kev nyeem ntawv concentration
(2) Cov yam ntxwv ua tau zoo
①. rhiab heev: Kev kuaj pom qhov txwv tsawg li 0.001ppm (qhov ib lab), lub sij hawm teb tsawg dua lossis sib npaug li 30 vib nas this.
②. Kev xaiv: Cov qauv tsim tshwj xeeb electrode tuaj yeem cuam tshuam qhov cuam tshuam ntawm cov pa roj xws li hydrogen sulfide thiab sulfur dioxide.
③. Stability: Qhov ntsuas kub tsis tu ncua yuav txo qhov kev ua yuam kev los ntawm ib puag ncig kub thiab av noo hloov pauv.
④. Lifespan: Cov kev pab cuam lub neej yog 2-3 xyoos (nyob rau hauv ib txwm ua hauj lwm tej yam kev mob).
2. Infrared absorption txoj cai: Raws li infrared absorption spectroscopy technology, chlorine (Cl₂) molecules muaj ib tug tshwj xeeb infrared absorption band. Thaum lub teeb tawm los ntawm lub teeb infrared dhau los ntawm cov qauv roj uas muaj cov tshuaj chlorine, cov tshuaj chlorine molecule yuav nqus lub teeb infrared ntawm ib lub wavelength tshwj xeeb, uas ua rau txo qis ntawm lub teeb kis tau zoo. Lub attenuation℃ntawm lub teeb kis tau tus mob yog exponentially muaj feem xyuam rau cov chlorine concentration, yog li ncaj qha xam cov concentration.Signal detection txheej txheem raws li hauv qab no:
(1).Infrared teeb qhov chaw: emits broadband infrared teeb (feem ntau siv tungsten filament teeb, silicon carbon pas nrig).
(2).Filter system: lim tawm cov yam ntxwv nqus dej ntawm cov tshuaj chlorine (xws li ib qho nruab nrab -infrared band) los ntawm kev cuam tshuam lim lossis monochromator.
(3) Gas Chamber sampling: Cov roj uas yuav tsum tau kuaj nkag mus rau hauv cov pa roj chamber thiab absorbs infrared zog ntawm lub hom phiaj wavelength.
(4) Nthuav hloov dua siab tshiab: Lub teeb infrared ntxiv yog tau txais los ntawm thermopile, pyroelectric thiab lwm yam detectors thiab hloov mus rau hauv hluav taws xob teeb liab.
(5) Concentration xam: Lub microprocessor xam cov chlorine concentration tus nqi los ntawm kev ntsuas lub teeb siv attenuation ntawm lub ntsuas. cov
(6) Kev sib piv zoo: Lub hauv paus ntsiab lus ntawm electrochemical muaj cov lus teb ceev ceev thiab siab rhiab heev, uas tsim nyog rau kev saib xyuas lub sijhawm tiag tiag; lub hauv paus ntsiab lus infrared muaj zog los tiv thaiv - cuam tshuam thiab tsim nyog rau cov cheeb tsam nyuaj.