Ua dej khov qhuav hauv tsev

Ua dej khov qhuav hauv tsev
Ua dej khov qhuav hauv tsev

Video: Ua dej khov qhuav hauv tsev

Video: Ua dej khov qhuav hauv tsev
Video: Mus saib Tsas Lis lub tsev & Mus tos Xaiv Tub Lis ntawm Koos loos tsev mus ncig nrhiav nkauj mos ab 2024, Kaum ib hlis
Anonim

Cov dej khov qhuav yog cov pa roj carbon dioxide (dioxide) uas sai sai hloov mus rau hauv chav ntawm atmospheric siab thiab chav tsev kub. Cov kua theem hla dhau.

dej khov qhuav
dej khov qhuav

Sab nraud, carbon dioxide tiag tiag zoo li cov dej khov zoo tib yam (li no lub npe). Qhov kub ntawm "dej khov" yog ze rau -79˚С. Nws "melted", absorbing 590 kJ / kg. Tsis muaj tshuaj lom. Nws yog siv feem ntau rau cov khoom cua txias perishable thaum caij tsheb thauj mus los lossis tsis muaj lub tub yees.

Cov dej khov qhuav yog nyob rau hauv kev thov hauv engineering, foundry, roj hmab cov khoom, plastics thiab polymers ua, dej / tsheb ciav hlau thauj, kuaj thiab lwm yam lag luam (facade restoration, ntoo nto tu, qhov cua tshuab tu).

Kev lag luam tsim cov pa roj carbon dioxide xav tau cov nroj tsuag carbon dioxide. Tau txais cov dej khov qhuav (tus nqi ntawm ib kilogram li ntawm 35 txog 45 rubles, nyob ntawm thaj tsam thiab qhov nyuaj ntawm kev xa khoom) tsis yog ib txwm ua tau. Ua ntej tshaj plaws, cov yam ntxwv xws li kev nyob deb ntawm qhov chaw tsim cov pa roj carbon dioxide thiab qhov nyuaj ntawm kev thauj mus los ua lub luag haujlwm ntawm no (tshwj xeeb (kub) ntim khoom xav tau). Tab sis yog tiascov teeb meem no tseem daws tau, ces yuav ua li cas rau qhov ceev? Tom qab tag nrho, muaj cov xwm txheej uas yuav tsum tau muaj cov pa roj carbon dioxide tam sim ntawd, thiab nws txoj kev tshawb nrhiav thiab kev xa khoom tuaj yeem siv sijhawm tsis yog teev xwb, tab sis txawm tias hnub.

Yuav ua li cas ua kom qhuav dej khov
Yuav ua li cas ua kom qhuav dej khov

Nws hloov tawm tias txawm tias nyob hauv qhov xwm txheej zoo li tsis muaj kev cia siab, koj tuaj yeem ua haujlwm rau koj los ntawm kev npaj cov pa roj carbon dioxide hauv tsev rau ob peb feeb.

Xav paub yuav ua kom dej khov qhuav? Txhua yam tshiab, raws li koj paub, tsis nco qab qub. Ib tug tsuas yog nco ntsoov lub tsev kawm ntawv cov ntaub ntawv.

Yuav ua kom koj tus kheej me me ntawm cov dej khov qhuav koj yuav xav tau:

- hluav taws tua hluav taws (carbon dioxide, nrog OU hom cim, lwm yam tsis haum);

- hnab ua los ntawm cov ntaub npuag tuab;

- mittens (xav lossis paj rwb, tab sis tuab heev);

- daim npog ntsej muag (lossis tsawg kawg tsom iav).

Cov pa roj carbon dioxide tua hluav taws (OU marking) twb tau ntim nrog cov pa roj carbon dioxide, uas nyob rau hauv cov kua hauv lub xeev (hauv siab) thiab ncav cuag qhov kub thiab txias ntawm qhov hluav taws xob (kwv yees li -72 ° C). Yog li ntawd, kev ceev faj txog kev nyab xeeb (hnab looj tes, daim npog qhov ncauj) tseem ceeb heev.

tus nqi dej khov qhuav
tus nqi dej khov qhuav

Cia peb pib. Peb muab lub tshuab tua hluav taws, tshem lub foob los ntawm nws thiab rub tawm tus pin kev ruaj ntseg los ntawm tus kov. Peb muab lub hnab ntim khoom npaj ua ntej ntawm lub qhov (socket), nteg lub zais pa rau hauv pem teb (ntawm nws sab) thiab maj mam, maj mam, nias lub zog. Los ntawm ntu ntu ntu ntu, peb maj mam tso cov pa roj carbon dioxide. Ua ntej no, nws yog ib qho tseem ceeb los kho lub hnab ntawm lub tswb(tsuas yog nias nws nrog koj txhais tes), txwv tsis pub nws yuav ya tawm (hauv siab) los ntawm thawj nias.

Thaum lub hnab ntim puv, tso lub zog thiab tig cov khoom sab hauv tawm - koj yuav pom cov dej khov qhuav qhuav uas peb xav tau heev.

Kev khaws cia ntev ntawm cov khoom tau txais tsuas yog ua tau ntawm qhov kub ntawm -80 ° C thiab qis dua. Nws yuav luag tsis tuaj yeem tsim cov xwm txheej zoo li no hauv tsev, tab sis koj tuaj yeem txuas lub neej ntawm cov dej khov qhuav los ntawm kev tsim ib hom thermos. Ib lub thawv ntawv hauv kab nrog polyethylene thiab ua npuas ncauj yog qhov tsim nyog. Cua ncig yuav tsum tsis suav nrog.

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