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Cov kua nitrogen thiab kua oxygen yog ob qho kev siv cov kua dej cryogenic hauv kev lag luam thiab kev tshawb fawb. Txhua tus muaj nws tus kheej qhov dav thiab kev siv tshwj xeeb. Ob leeg yog tsim los ntawm huab cua sib cais, tab sis vim lawv cov tshuaj sib txawv thiab lub cev, lawv muaj cov yam ntxwv sib txawv hauv kev siv tswv yim. Kab lus no yuav tshawb txog cov kev siv tshwj xeeb ntawm cov kua nitrogen thiab kua oxygen thiab lawv qhov sib txawv.

I. Kev siv cov kua Nitrogen

Cov kua nitrogen yog tau los ntawm cua txias kom qis dua qhov kub ntawm nitrogen. Nws cov khoom tseem ceeb yog nitrogen gas (N₂). Cov cuab yeej kub qis ntawm cov kua nitrogen ua rau nws siv dav, feem ntau suav nrog cov hauv qab no:

Tsawg-kub khov thiab khaws cia

Ib qho kev siv ntau tshaj plaws ntawm cov kua nitrogen yog rau qhov qis-kub khov thiab khaws cia, tshwj xeeb tshaj yog nyob rau hauv kev lag luam biomedicine. Qhov kub ntawm cov kua nitrogen yog qis li -196 ° C, uas tuaj yeem khov cov ntaub so ntswg, hlwb, thiab embryos sai sai thiab khaws cia rau lawv ntev, ua kom lawv cov haujlwm. Cov ntawv thov no tseem ceeb heev hauv kev tshawb fawb txog kev kho mob, kev hloov pauv hauv nruab nrog cev, thiab kev sim tsiaj yug tsiaj.

Zaub mov khov

Hauv kev ua zaub mov, cov kua nitrogen yog siv rau kev khov sai sai ntawm cov zaub mov, xws li cov nqaij nruab deg, nqaij, thiab txiv hmab txiv ntoo. Cov kua nitrogen khov tuaj yeem txo qhov kub ntawm cov zaub mov sai, yog li txo qhov tsim ntawm cov dej khov nab kuab thiab tiv thaiv cov saj thiab kev noj haus ntawm cov zaub mov.

Cua txias thiab tub yees

Cov kua nitrogen kuj feem ntau siv rau qhov txias thiab kub tswj ntawm cov cuab yeej siv tshuab. Piv txwv li, kua nitrogen tuaj yeem siv los ua qhov nruab nrab cua txias kom txo tau kev sib txhuam thiab cua sov hauv kev siv tshuab, yog li txhim kho kev ua haujlwm raug thiab ua haujlwm tau zoo.

Kev siv cov pa roj nitrogen: Cov kua nitrogen kuj tseem tuaj yeem muab cov roj purity nitrogen siab tom qab vaporization, uas yog siv dav hauv kev lag luam tshuaj raws li kev tiv thaiv roj los tiv thaiv oxidation cov tshuaj phem.

II. Kev siv kua Oxygen

Cov khoom tseem ceeb ntawm cov pa oxygen yog cov pa oxygen (O₂), uas tseem tau los ntawm kev sib sib zog nqus cryogenic sib cais tshuab. Oxygen, raws li lub ntsiab tseem ceeb rau kev txhawb nqa lub neej thiab tshuaj lom neeg cov tshuaj tiv thaiv, muaj ntau yam kev siv, feem ntau cuam tshuam nrog cov hauv qab no:

Kev kho mob oxygen muab

Cov pa oxygen yog siv dav hauv tsev kho mob thiab kev kho mob xwm txheej ceev, muab cov pa oxygen siab rau cov neeg mob los pab ua pa. Tshwj xeeb tshaj yog nyob rau hauv kev kho mob ntawm cov kab mob ua pa, oxygen mov yog ib qho tseem ceeb heev. Cov pa oxygen ua kua yog me me hauv ntim, nrog cov pa oxygen siab, yooj yim rau kev khaws cia thiab kev thauj mus los, thiab yog ib qho ntawm cov kev xav tau ntawm kev kho mob oxygen.

Muaj oxidant

Cov pa oxygen feem ntau yog siv los ua oxidant hauv kev lag luam, tshwj xeeb tshaj yog nyob rau hauv steel smelting thiab tshuaj lom neeg ntau lawm. Cov pa oxygen ua kua tuaj yeem siv los pab combustion, nce combustion kub thiab cov tshuaj tiv thaiv kev ua haujlwm. Piv txwv li, nyob rau hauv cov txheej txheem steel-ua, oxygen yog txhaj rau hauv cov dej molten hlau kom tshem tawm impurities thiab txhim kho cov purity ntawm hlau.

Aerospace thiab foob pob ua ntxaij propulsion

Cov pa oxygen ua kua yog ib qho kev siv roj uas nquag siv hauv cov foob pob hluav taws propulsion systems, tov nrog cov roj ua kua (xws li kua hydrogen) rau combustion, tsim lub zog siab heev los txhawb cov foob pob hluav taws rau hauv qhov chaw. Nws cov khoom siv hluav taws xob zoo heev ua rau cov pa oxygen ua kua ua rau lub cev tsis muaj zog hauv kev lag luam aerospace.

III. Qhov sib txawv ntawm Liquid Nitrogen thiab Liquid Oxygen

Txawm hais tias daim ntawv thov ntawm cov kua nitrogen thiab kua oxygen yog qhov txawv, lawv muaj qhov sib txawv ntawm qhov xwm thiab kev siv. Tshwj xeeb:

1. Cov khoom xyaw: Cov kua nitrogen muaj cov roj nitrogen (N₂), thaum cov kua dej muaj cov pa oxygen (O₂).

2. Ceev: Cov kua nitrogen yog denser dua li cov pa oxygen.

3. Boiling point: Cov kua nitrogen muaj qhov kub qis dua li cov pa oxygen.

4. Kev siv: Cov kua nitrogen feem ntau yog siv los khov thiab khaws cia, thaum cov pa oxygen feem ntau yog siv los ua cov oxidant thiab cov tshuaj tiv thaiv. Cov khoom siv tshuaj

Cov kua nitrogen yog qhov tseem ceeb tsis muaj zog, nrog rau cov qauv molecular ruaj khov uas ua rau nws tsis zoo li muaj tshuaj lom neeg nrog rau lwm yam tshuaj. Cov cuab yeej no tso cai rau nws siv los ua cov roj tiv thaiv thiab siv rau hauv ntau cov txheej txheem tshuaj thiab kev lag luam. Ntawm qhov tod tes, kua oxygen yog ib qho muaj zog oxidizer nrog cov tshuaj lom neeg muaj zog, thiab nws nquag ua rau cov tshuaj tiv thaiv oxidation nrog lwm yam tshuaj, ua rau nws siv dav hauv kev sib xyaw thiab oxidation txheej txheem.

Cov yam ntxwv kub

Qhov kub ntawm cov kua nitrogen yog qis dua li cov kua oxygen (kua nitrogen -196 ° C, kua oxygen -183 ° C), ua rau nws tsim nyog rau txias thiab khaws cia ntawm qhov kub thiab txias. Txawm hais tias cov kua oxygen kuj tseem nyob hauv chav kawm ntawm cov kua cryogenic, nws qhov kev ua haujlwm qis qis tsis zoo li cov kua nitrogen. Yog li ntawd, kua oxygen feem ntau yog siv rau combustion thiab oxidation es tsis txhob cia cryogenic. Kev nyab xeeb

Cov kua nitrogen kuj muaj kev nyab xeeb rau kev siv vim tias nws tsis yooj yim rau cov tshuaj tiv thaiv. Cov kev pheej hmoo tseem ceeb yog mob khaub thuas los ntawm qhov kub thiab txias thiab hloov cov pa oxygen hauv qhov chaw, uas tuaj yeem ua rau asphyxiation. Thaum cov pa oxygen ua kua, ua cov oxidizer, yuav tsum tau ceev kom deb ntawm cov khoom siv hluav taws xob xws li roj los tiv thaiv kev sib tsoo thiab tawg tawg. Yog li ntawd, nws yuav tsum tau ceev faj ntxiv thaum siv.

Cov kua nitrogen thiab kua oxygen yog ob qho tseem ceeb ntawm cov kua dej kub. Txawm hais tias lawv yog ob qho tib si tsim los ntawm huab cua sib cais, vim lawv cov tshuaj sib txawv thiab lub cev, lawv daim ntawv thov teb muaj qhov sib txawv. Cov kua nitrogen, nrog rau nws cov inertness thiab tsis kub cov yam ntxwv, yog dav siv nyob rau hauv freezing preservation, khoom noj khoom haus, thiab muaj cua txias, thiab lwm yam. Thaum cov kua oxygen, cia siab rau nws cov oxidizing zog, yog tsuas yog siv rau kev kho mob oxygen mov, muaj oxidation, thiab aerospace propulsion, thiab lwm yam. Nyob rau hauv lub tswv yim ua hauj lwm, kev siv cov kua nitrogen thiab kua oxygen lawv cov yam ntxwv yuav tsum muaj kev saib xyuas thiab kev nyab xeeb.

Peb yog cov chaw tsim khoom thiab exporter ntawm cua cais chav tsev. Yog tias koj xav paub ntau ntxiv txog peb:

Hu rau tus neeg: Anna

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Email :anna.chou@hznuzhuo.com