Cov kuab tshuaj, cov kua dej sib zog, roj av, tshuaj tua kab, xim, roj av, propane, butane, roj av, roj av, cov khoom siv tu txhua yam yog cov kua hluav taws xob. Cov khoom siv no yog siv txhua qhov chaw, tshwj xeeb tshaj yog ntau hom roj thiab cov khoom siv tu tsev uas txhua tus muaj nyob hauv tsev. Thaum tsiv los yog ua hauj lwm nrog ib tug ntawm lawv, koj yuav tsum ua raws li txoj cai kev nyab xeeb.
Yog tias txoj haujlwm cuam tshuam nrog kev ua haujlwm nrog cov khoom siv hluav taws xob, ces koj yuav tsum paub txhua yam teeb meem ntsig txog kev tiv thaiv koj lub neej thiab lwm tus thaum muaj hluav taws. Kab lus no piav qhia tag nrho cov kev cai tsim nyog rau cov kua dej uas muaj nplaim taws.
Kev nyab xeeb dav dav
Txhua cov kua uas muaj hluav taws kub tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv lossis hluav taws kub yog tias siv tsis raug. Yog hais tias qhov concentration ntawm huab cua vapor mus txog qhov kub thiab txias, cov kua ignites. Teeb meem nws tus kheej, uas yog thaum so,tsis tuaj yeem taws. Cov kua nplaum nplaum muaj qhov taw tes siab, cov kua nplaum nplaum muaj qhov taw tes qis, yog li lawv txaus ntshai rau tib neeg.
Kuv yuav ua li cas yog tias kuv nchuav ib yam dab tsi?
Yog tias muaj cov tshuaj tua hluav taws kub hnyiab, qhib txhua lub qhov rais tam sim ntawd thiab tso cua tawm hauv chav. Tshem tawm tag nrho cov khoom siv hluav taws xob, vim nws yog qhov chaw ntawm cov nplaim taws uas tuaj yeem ua rau tawg. Yog hais tias ib yam dab tsi los ntawm cov khaub ncaws - tshem tawm, ntawm daim tawv nqaij - yaug nrog dej kom sai li sai tau. Yog tias muaj ntau cov khoom siv hluav taws xob tawg, nws raug nquahu kom khiav tawm txhua tus neeg ua haujlwm thiab hu rau lub chaw tua hluav taws.
Thaum hluav taws kub hnyiab, tsis txhob sim tua nws nrog dej, thaum muaj cov kua dej zoo li no, nws tsuas yog ua rau qhov xwm txheej hnyav dua. Lub tshuab tua hluav taws yog qhov zoo tshaj plaws. Nws yuav tsum nyob ze ntawm thaj chaw ua haujlwm.
Cov Lus Qhia
Nco ntsoov nyeem daim ntawv lo ua tib zoo ua ntej siv ib yam khoom. Kom paub tseeb tias koj paub yuav ua li cas thiaj siv tau cov kua dej uas muaj hluav taws kub thiab hluav taws kub.
Daim ntawv qhia:
- Tsis txhob tham hauv xov tooj, mloog nkauj, lossis ua lwm yam thaum ua haujlwm nrog cov hluav taws kub.
- Ua haujlwm nrog cov kua nplaum uas muaj qhov kub hnyiab yuav tsum muaj qhov cua zoo. Txij li cov pa taws tsis zoo, thiab cov tshuaj tsis zoo tuaj yeem nkag mus rau hauv lub cev los ntawm kev ua pa. Muaj ntau yam tsis muaj tsw.
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Kev ceev faj yog thawj txoj cai. Xyuas kom tseeb tias cov khoom koj ua haujlwm nrog tsis tau rau ntawm koj daim tawv nqaij lossis khaub ncaws.
- Yog tias muaj qhov xau, qhia rau tus thawj tswj hwm.
- Thaum twg koj tawm hauv chav tsev uas muaj cov kua nplaum nplaum, tshuaj xyuas nws ua ntej kaw qhov rooj.
- Tsis txhob haus luam yeeb hauv qhov chaw uas muaj cov tshuaj no. Lawv yuav tsum khaws cia kom deb ntawm cov nplaim taws.
- Nco ntsoov tias muaj ntau qhov chaw zais hluav taws xob, xws li hauv tshuab.
- Thaum siv cov hlau reels, hoses, piping, xyuas kom tseeb tias lawv yog grounded kom tsis txhob muaj static buildup, uas yuav ua tau ib tug ignition.
- Nco ntsoov txhua lub thawv, faucets, canisters, twj tso kua mis thiab lwm yam khoom siv los khaws cia yog tsim los lis cov kua dej uas muaj nplaim taws.
Sim kom tsis txhob muaj hluav taws kub hnyiab
Txoj kev zoo tshaj los txo cov hluav taws kub yog kom tsis txhob muaj cov khoom zoo li no. Yog tias ua tau, koj tuaj yeem hloov nws nrog lwm cov khoom siv hluav taws xob tsawg dua. Ua tib zoo saib ntawm koj qhov kev pom tam sim no thiab saib seb puas muaj ib txoj hauv kev uas koj tuaj yeem ua haujlwm nyab xeeb dua.
Ua raws cov lus qhia hauv qab no txhawm rau pab koj lis cov kua dej uas muaj hluav taws kub zoo.
Ua ntej, koj yuav tsum kawm cov kev kawm tshwj xeeb uas tus kws qhia yuav qhia koj txhua qhov nuancesua hauj lwm nrog cov khoom combustible.
Thib ob, thaum muaj kev nyab xeeb, kev noj qab haus huv ntawm cov neeg nyob ib puag ncig koj tseem ceeb heev. Ua raws li txoj cai tiv thaiv kev ua haujlwm thiab tsis txhob ua rau lwm tus neeg lub neej.
Dab tsi yog qhov taw tes nyem thiab qhov tshwm sim tshwm sim?
Lub ntsiab lus ntawm cov kua nplaum yog qhov tsawg kawg nkaus uas cov kua yuav tso tawm cov vapors mus rau qhov chaw kom ignite. Cov kua lawv tus kheej tsis hlawv. Kev sib xyaw ntawm cov pa taws thiab cua kub hnyiab.
Roj av, nrog lub teeb nyem ntawm -43 ° C, yog cov kua hluav taws kub. Txawm tias qhov kub thiab txias, nws tsim cov vapor txaus los tsim cov khoom sib xyaw nrog cua.
Phenol yog cov kua ua kua. Nws muaj qhov taw tes ntawm 79 ° C (175 ° F). Yog li ntawd, nws qib yuav tsum siab tshaj 79 ° C ua ntej nws tuaj yeem ignite hauv huab cua.
Qhov kub pib qhov kub ntawm cov kua dej feem ntau yog li ntawm 300 ° C (572 ° F) txog 550 ° C (1022 ° F).
Explosive flammability txwv
Qhov qis dua qhov txwv tsis pub muaj hluav taws xob yog qhov feem pua ntawm cov pa hauv huab cua saum toj no uas hluav taws tsis tuaj yeem tshwm sim vim tsis muaj roj txaus. Cov vapors uas muaj qhov ntom ntom dua li huab cua yuav ua rau muaj kev phom sij ntau dua vim tias lawv tuaj yeem ntws hauv pem teb thiab sib sau ua ke hauv qhov chaw qis.
Lub qhov hluav taws xob sab saud yog qhov feem pua ntawm cov vapors hauv huab cua thaum tsis muaj cua txaus los ignite.
Cov kua nplaum uas tawg tau tawg, thiab cov kev txwv no muab qhov sib txawv ntawm qhov qis tshaj plaws thiab siab tshaj plaws vapor concentrations hauv huab cua. Ntawd yog, siv qhov txwv tsis pub siv hluav taws xob, koj tuaj yeem txiav txim siab yam khoom twg yuav hlawv thiab qhov twg tuaj yeem tawg.
Piv txwv li, qhov kev txwv qis qis ntawm cov roj av yog 1.4% thiab qhov txwv siab tshaj yog 7.6%. Qhov no txhais tau hais tias cov kua no tuaj yeem ignite thaum nyob hauv huab cua ntawm theem ntawm 1.4% thiab 7.6%. Vapor concentrations hauv qab theem tawg yog tsawg dhau rau ignite, ntau dua 7.6% - tej zaum yuav ua rau tawg.
Nplaim txwv ua haujlwm raws li kev taw qhia rau cov chaw kub.
Vim li cas cov tshuaj no txaus ntshai?
Nyob rau hauv chav tsev kub ib txwm, cov kua hluav taws xob tuaj yeem tso tawm ntau cov vapors uas tsim cov nplaim hluav taws sib xyaw nrog huab cua. Yog li ntawd, lawv tuaj yeem ua rau muaj hluav taws kub hnyav. Flammable kua hlawv sai heev. Lawv kuj eev ntau cov tuab tuab, dub, muaj pa phem.
Cov kua dej kub ntawm qhov kub siab tshaj lawv qhov flash kuj tuaj yeem ua rau hluav taws kub hnyav.
Txau cov kua dej uas muaj hluav taws kub thiab hluav taws kub hnyiab rau hauv huab cua yuav ua rau hluav taws yog tias muaj qhov hluav taws kub. Cov khub ntawm cov khoom feem ntau pom tsis pom. Lawv tsis yooj yim mus ntes tshwj tsis yog siv cov cuab yeej tshwj xeeb.
Cov kua nplaum thiab cov nplaim taws tau yooj yim nqus rau hauv ntoo, ntaub thiab duab los qhia. Txawm tias tom qab tshem tawm ntawm cov khaub ncawslossis lwm yam txheej txheej uas lawv tuaj yeem ua rau muaj kev phom sij, muab cov pa phem tawm.
Cov kua dej no ua rau lub cev puas tsuaj?
Cov tshuaj no ua rau muaj kev phom sij loj thaum muaj hluav taws kub thiab tawg. Lawv muaj kev phom sij rau kev noj qab haus huv. Flammable kua tuaj yeem ua rau tib neeg lub cev puas tsuaj, nyob ntawm seb cov khoom siv tshwj xeeb thiab txoj kev raug:
- nqus pa.
- qhov muag lossis tawv nqaij.
- nqhis dej.
Cov kua dej uas muaj hluav taws ntau, cov khoom siv hluav taws xob yog qhov txaus ntshai rau tib neeg. Ntau ntawm lawv tau khaws cia tsis raug thiab raug tshuaj lom neeg tsis sib haum, uas tuaj yeem ua rau muaj kev phom sij ntau dua.
Cov ntaub ntawv ntawm cov ntawv sau thiab ntim yuav tsum qhia koj txhua yam kev phom sij rau cov khoom siv hluav taws xob uas tus neeg ua haujlwm.
Piv txwv li, propanol (tseem hu ua isopropanol lossis isopropyl cawv) yog cov kua tsis muaj xim nrog cov ntxhiab tsw ntxhiab uas nco txog kev sib xyaw ntawm ethanol thiab acetone. Vapors hnyav dua li huab cua thiab tuaj yeem taug kev deb. Cov vapors siab tuaj yeem ua rau mob taub hau, xeev siab, kiv taub hau, tsaug zog, tsis sib haum xeeb. Cov tshuaj no kuj yuav ua rau ua pa lossis qhov muag khaus.
Yuav ua li cas khaws cov tshuaj hauv thaj chaw tsim khoom, chaw ua haujlwm, chaw sim thiab chaw ua haujlwm zoo sib xws
Nws yuav tsum tau lees paub tias rau lub hom phiaj siv tau siv cov kua dej, feem ntau yuav tsim nyog los khaws cia rau hauv lub rooj cob qhia. Tsuas yog qhov tsawg kawg nkaus ntawm cov tshuaj no tuaj yeem muab tso rau hauv thaj chaw ua haujlwm.cheeb tsam, tab sis txawm lawv yuav tsum tau siv thaum nruab hnub lossis hloov chaw. Cov ntaub ntawv lub sijhawm khaws cia tiag tiag yuav nyob ntawm kev ua haujlwm, kev npaj ua haujlwm, kev pheej hmoo hluav taws kub nyhiab hauv lub rooj cob qhia thiab chaw ua haujlwm. Kev cia cov kua hluav taws xob ntau hauv tsev yog txwv. Txhua lub luag haujlwm yuav dag nrog cov tswv.
Cov thawv rau cov kua hluav taws xob yuav tsum raug kaw. Lawv yuav tsum tau muab tso rau hauv cov chaw tshwj xeeb, nyob deb ntawm qhov chaw ua haujlwm tam sim ntawd thiab tsis ua rau muaj kev phom sij rau kev cob qhia thiab chaw ua haujlwm.
Cov kua nplaum yuav tsum tau muab cais tawm ntawm lwm yam khoom phom sij uas tuaj yeem ua rau muaj kev pheej hmoo ntawm hluav taws lossis cuam tshuam rau kev ncaj ncees ntawm lub thawv lossis txee (tub rau khoom), xws li oxidizers thiab cov khoom siv corrosive.
Yuav ua li cas yog tias tus nqi siab tshaj qhov txwv?
Thaum pom zoo cia tus nqi siab tshaj, txhua yam yuav tsum tau soj ntsuam. Thov nco ntsoov cov hauv qab no:
- Cov khoom yuav tsum muab khaws cia lossis ua haujlwm hauv thaj chaw ua haujlwm;
- yuav tsum coj mus rau hauv tus account qhov loj ntawm lub rooj cob qhia thiab cov neeg ua haujlwm nyob ntawd;
- Tus nqi ntawm cov kua ua tiav hauv lub rhiav yuav tsum tsis pub tshaj cov qauv tsim los ntawm lub tuam txhab;
- Lub rooj cob qhia yuav tsum muaj qhov cua zoo.
Yuav tsum muaj phiaj xwm khiav tawm rau lub rooj cob qhia uas muaj cov khoom tawg.
