Lub hauv paus ntsiab lus ua haujlwm ntawm hydrogen sulfide gas detector
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm hydrogen sulfide gas detector:
Lub hydrogen sulfide gas ntes tau txais cov khoom siv tseem ceeb ntawm ampere-hom electrochemical sensor, uas feem ntau yog tsim los ntawm peb cov electrodes raus hauv cov electrolyte. Cov electrode ua haujlwm yog ua los ntawm cov hlau catalytically active hlau coated ntawm cov roj-permeable tab sis dej-repellent membrane. Cov roj yuav tsum tau ntsuas diffuses los ntawm cov kua nplaum nplaum thiab ua rau muaj hluav taws xob oxidation lossis txo cov tshuaj tiv thaiv rau nws. Qhov xwm txheej ntawm cov tshuaj tiv thaiv yog nyob ntawm qhov muaj peev xwm ntawm cov khoom siv hluav taws xob ua haujlwm thiab cov khoom siv hluav taws xob (oxidation lossis txo qis) ntawm cov roj uas tau txheeb xyuas.
Hauv cov tshuaj tiv thaiv electrochemical, cov electrons uas koom nrog cov tshuaj tiv thaiv ntws mus rau hauv (txo) lossis ntws tawm (oxidation) ntawm cov electrode ua haujlwm. Lub teeb liab ua haujlwm ntawm kev ua haujlwm electrode yog amplified los ntawm kev ua haujlwm amplifier U2 los ua cov teeb liab tso tawm ntawm qhov ntsuas. Lub Circuit Court ib txhij tswj qhov ua hauj lwm electrode voltage ntawm nws bias voltage VBIAS. Cov ntaub ntawv siv electrode muab lub peev xwm ruaj khov rau cov khoom siv hluav taws xob ua haujlwm hauv electrolyte.
Tom qab lub peev xwm ntawm cov ntaub ntawv siv electrode piv nrog VBIAS, lub chaw ua haujlwm amplifier U1 tso tawm qhov hluav taws xob hluav taws xob uas nws qhov loj me tsuas yog los tsim cov teeb liab tam sim no sib npaug thiab tawm tsam ntawm qhov ua haujlwm electrode. Nyob rau tib lub sijhawm, Circuit Court tswj qhov muaj peev xwm sib txawv ntawm qhov ua haujlwm electrode thiab siv electrode. Kev ntsuas hluav taws xob tsuas yog qhov thib ob electrode xav tau los ua kom tiav electrochemical sensor, thiab nws lub luag haujlwm tseem ceeb yog tso cai rau cov hluav taws xob nkag los yog ntws tawm ntawm electrolyte.
Hauv cov ntsiab lus, qhov no yog txoj hauv kev ua haujlwm ntawm hydrogen sulfide gas detector. Nws yog qhov tseeb vim tias qhov tshwj xeeb zoo ntawm hydrogen sulfide gas detector uas tuaj yeem siv dav hauv kev lag luam roj, roj av, metallurgy, steel, coking, hluav taws xob, qhov, mines thiab lwm qhov chaw ua haujlwm txaus ntshai. Nws yog tus tswj hwm zoo tshaj plaws los xyuas kom muaj kev nyab xeeb ntawm cov cuab yeej thiab tus kheej.
