Dab tsi yog lub luag haujlwm ntawm lub tshuab ntsuas roj hauv ntau qhov chaw?
Tsis ntev los no, nquag tshwm sim ntawm cov teeb meem roj phom sij thoob plaws hauv lub tebchaws tau nyiam cov neeg tuaj saib thoob plaws, tshwj xeeb tshaj yog 12.4 qhov xwm txheej loj ntawm Yongchuan Coal Mine hauv Chongqing, uas tau coj "kev kuaj pom roj txaus ntshai" rau tib neeg pom. Tuam Tshoj yeej ib txwm muaj kev nruj tshwj xeeb rau kev kuaj xyuas cov pa phem hauv chaw ua haujlwm, tab sis vim muaj kev sib txawv ntawm kev saib xyuas thiab kev lag luam los ntawm kev lag luam, tseem muaj ntau qhov kev pheej hmoo ntawm ib puag ncig uas tswj tsis tau. Txhawm rau kom muaj kev nyab xeeb ntawm tus kheej ntawm cov neeg ua haujlwm hauv lub Hoobkas thiab txuag cov nqi, lub tuam txhab tuaj yeem muab cov neeg ua haujlwm nrog cov khoom siv roj ntau ntau, uas tuaj yeem nqa nrog lawv rau kev kuaj xyuas tus kheej roj lossis muab tso rau hauv qhov chaw muaj kev phom sij rau thaj tsam. Los ntawm kev siv lub suab nrov thiab lub teeb ceeb toom ntawm lub ntsuas roj, nws cia li ceeb toom thiab ceeb toom cov neeg ua haujlwm tam sim kom ntseeg tau tias lawv muaj kev nyab xeeb.
Lub hauv paus ntsiab lus thiab kev faib tawm ntawm cov khoom siv roj av
Gas detector yog ib qho cuab yeej uas tuaj yeem tshawb xyuas qhov muaj pes tsawg leeg thiab cov concentration ntawm ntau yam roj hauv ib puag ncig. Tam sim no, muaj ntau lub npe thiab pawg ntawm cov khoom siv roj av hauv khw. Thaum xaiv lub ntsuas roj, cov tuam txhab lag luam yuav tsum ua kom muaj kev sib piv ntau dua thiab xaiv lub ntsuas roj uas tsim nyog rau lawv tus kheej. Gas detectors feem ntau muab faib ua portable gas detectors thiab fixed gas detectors. Cov thev naus laus zis tseem ceeb ntawm cov cuab yeej siv hluav taws xob yog cov cuab yeej siv hluav taws xob, thiab kev faib tawm ntawm cov khoom siv roj av sib txawv nyob ntawm seb cov cuab yeej tshawb pom ntawm cov roj sensors.
Gas sensors tuaj yeem muab faib ua plaub pawg hauv txoj cai:
(1) Cov khoom siv hluav taws xob hluav taws xob, uas siv cov khoom siv hluav taws xob hloov pauv nrog cov roj concentration, tuaj yeem muab faib ua hom resistive thiab tsis muaj zog. Resistive gas sensors mas muaj xws li kev sib cuag combustion, thermal conductivity, semiconductor gas sensors (tseem hu ua hlau oxide semiconductor gas sensors thiab organic semiconductor gas sensors), thiab lwm yam. Tsis yog resistive gas sensors feem ntau siv tam sim no los yog voltage ntawm cov ntaub ntawv hloov nrog cov ntsiab lus roj.
(2) Optical gas sensors siv cov khoom siv kho qhov muag ntawm cov roj ntsha kom pom cov roj muaj pes tsawg leeg thiab cov concentration, uas tuaj yeem muab faib ntxiv rau hauv infrared absorption, pom lub teeb pom kev, cuam tshuam lub teeb, chemiluminescence, kuaj ntawv photoelectric, photoionization, thiab lwm yam.
(3) Electrochemical gas sensors siv cov khoom siv hluav taws xob.
(4) Polymer gas rhiab heev gas sensors yog tsim los ntawm polymer roj rhiab cov ntaub ntawv thiab yuav muab faib mus rau hauv polymer kuj hom, polymer dielectric hom, concentration cell hom, nto acoustic yoj hom, quartz oscillator hom, thiab lwm yam.
Common gas detectors
Multifunctional gas detector yog hom roj ntes uas tau siv dav vim nws lub peev xwm los tshawb pom ntau yam roj. Multifunctional gas detector, raws li lub npe qhia, yog ib qho cuab yeej siv los kuaj xyuas cov ntsiab lus ntawm ib lossis ntau dua gases hauv ib puag ncig. Lub tshuab kuaj xyuas siv cov diffusion ntuj los ntes cov pa roj thiab siv cov khoom siv hluav taws xob thiab hluav taws xob hluav taws xob, uas muaj qhov zoo heev rhiab heev thiab rov ua dua. Multifunctional gas detector tuaj yeem ntes tau plaub lub roj: oxygen, combustible gas, carbon monoxide, thiab hydrogen sulfide, thiab tuaj yeem khaws txog 130000 daim ntawm cov ntaub ntawv tshawb nrhiav. Nrog software, cov ntaub ntawv keeb kwm tuaj yeem pom txhua lub sijhawm.
Txawm hais tias nws yog lub ntsuas roj lossis lub ntsuas roj ntau yam, peb yuav tsum ua tib zoo saib xyuas cov kev ceev faj hauv qab no thaum siv nws:
1. Tsis txhob muaj kev cuam tshuam thiab compression thaum siv;
2. Kev them nyiaj yuav tsum tau ua nyob rau hauv qhov chaw nyab xeeb, thiab nws yog nruj me ntsis txwv tsis pub them rau hauv qhov chaw uas muaj hluav taws kub thiab tawg;
3. Kev saib xyuas yuav tsum tau ua los ntawm cov neeg ua haujlwm tshwj xeeb lossis cov koom haum. Thaum lub sij hawm txij nkawm, tus qauv, specifications, thiab tsis ntawm cov thawj Circuit Court Cheebtsam yuav tsum tsis txhob hloov;
4. Thov siv lub chaw tsim khoom tshwj xeeb thaum them nyiaj;
5. Tsis txhob nyem lub vijtsam nrog koj txhais tes;
6. Thaum cov roj concentration siab dhau lawm, nws yuav muaj kev cuam tshuam tsis zoo rau lub ntsuas hluav taws xob ntawm lub ntsuas hluav taws xob lossis kev puas tsuaj rau lub sensor;
7. Thaum lub roj teeb theem qis dhau lawm, lub buzzer emits ib lub suab nrov thiab yuav kaw. Thov them nqi ua ntej siv.
Gas detectors muaj qhov zoo heev rhiab heev thiab rov ua dua, thiab tuaj yeem siv rau hauv kev lag luam xws li roj av, tshuaj lom neeg, kev tiv thaiv ib puag ncig, metallurgy, refining, roj xa thiab xa tawm, tshuaj biochemical, kev ua liaj ua teb, thiab lwm yam. xws li combustible gases los yog toxic gases xws li carbon monoxide, hydrogen sulfide, thiab oxygen. Hauv qhov chaw muaj kev phom sij, kev nyab xeeb yog qhov tseem ceeb tshaj plaws thiab kev tiv thaiv yog qhov tsim nyog. Peb yuav tsum muaj 120% kev coj ncaj ncees, xyuas kom meej tias tsis muaj cov pa phem rau ntawm qhov chaw, thiab xyuas kom muaj kev ruaj ntseg.
