Nitrogen (N2)

Technical parameters

Nitrogen (N2) yog qhov tseem ceeb ntawm lub ntiaj teb huab cua, suav txog 78.08% ntawm tag nrho. Nws yog xim tsis muaj xim, tsis muaj ntxhiab, tsis qab, tsis muaj tshuaj lom thiab yuav luag tag nrho inert roj. Nitrogen yog non-flammable thiab suav hais tias yog ib tug suffocating gas (uas yog, ua pa ntshiab nitrogen yuav deprive tib neeg lub cev ntawm oxygen). Nitrogen yog chemically inactive. Nws tuaj yeem cuam tshuam nrog hydrogen los tsim ammonia nyob rau hauv qhov kub thiab txias, siab siab thiab catalyst tej yam kev mob; nws tuaj yeem ua ke nrog oxygen los tsim nitric oxide nyob rau hauv cov xwm txheej tawm. Nitrogen feem ntau hu ua cov roj inert. Nws yog siv nyob rau hauv tej yam inert atmospheres rau hlau kho thiab nyob rau hauv qhov muag teev los tiv thaiv arcing, tab sis nws tsis yog tshuaj inert. Nws yog ib qho tseem ceeb hauv lub neej ntawm cov nroj tsuag thiab tsiaj txhu, thiab yog ib feem ntawm ntau cov ntsiab lus tseem ceeb. Nitrogen ua ke nrog ntau cov hlau los tsim cov nitrides nyuaj, uas tuaj yeem siv los ua cov hlau tsis muaj zog. Ib qho me me ntawm nitrogen hauv cov hlau yuav cuam tshuam cov qoob loo loj hlob ntawm qhov kub thiab txias thiab tseem yuav ua rau muaj zog ntawm qee cov hlau. Nws tseem tuaj yeem siv los tsim cov tawv tawv ntawm cov hlau. Nitrogen tuaj yeem siv los ua ammonia, nitric acid, nitrate, cyanide, thiab lwm yam; hauv kev tsim cov khoom tawg; sau cov ntsuas kub kub, qhov muag teev; tsim cov ntaub ntawv inert los khaws cov ntaub ntawv, siv rau hauv cov thawv kom qhuav los yog hnab looj tes. Kua nitrogen thaum lub sij hawm noj zaub mov khov; siv los ua ib qho coolant hauv chav kuaj. Nitrogen yuav tsum tau muab khaws cia rau hauv qhov chaw zoo, muaj kev nyab xeeb thiab tsis muaj huab cua, thiab qhov ntsuas kub yuav tsum tsis txhob siab tshaj 52 ° C. Yuav tsum tsis txhob muaj cov khoom siv hluav taws kub hauv qhov chaw khaws cia thiab kom deb ntawm qhov chaw nkag mus thiab tawm thiab tawm thaum muaj xwm txheej ceev, thiab tsis muaj ntsev lossis lwm yam khoom siv corrosive. Rau lub tog raj kheej tsis siv roj, lub hau valve thiab cov khoom tso tawm valve yuav tsum raug kaw kom zoo, thiab lub tog raj kheej khoob yuav tsum tau muab cais tawm ntawm tag nrho lub tog raj kheej. Tsis txhob cia ntau dhau thiab khaws cia ntev, thiab khaws cov ntaub ntawv khaws cia zoo.

Daim ntawv thov:

①Nyob rau hauv ntau yam kev siv ntsuas ntsuas:

Carrier gas rau roj chromatography, txhawb roj rau Electron Capture Detectors, Kua Chromatography Mass Spectrometry, ntxuav roj rau Inductive Couple Plasma.

② Khoom siv:

1. Txhawm rau sau cov qij.
2. Nyob rau hauv tshuaj tua kab mob thiab cov cuab yeej sib tov rau kev siv tshuaj lom neeg.
3. Raws li ib feem nyob rau hauv Kev Tswj Cov Cuab Yeej Ntim thiab Hloov Cov Cuab Yeej Ntim Cov Ntawv Thov, 4. Calibration roj sib tov rau ib puag ncig saib xyuas, laser roj sib tov.
5. Txhawm rau inert ntau cov tshuaj tiv thaiv kom qhuav ntau yam khoom lossis cov khoom siv.

③ Cov kua nitrogen:

Zoo li cov dej khov qhuav, kev siv cov kua nitrogen tseem ceeb yog ua cov tub yees.

Cov pob li qub:

Qhov zoo:

① Ntau tshaj kaum xyoo ntawm kev ua lag luam;

② ISO daim ntawv pov thawj chaw tsim khoom;

③ Kev xa khoom sai;

④ Cov khoom siv ruaj khov;

⑤ On-line tsom xam qhov system rau kev tswj kom zoo hauv txhua kauj ruam;

⑥ Cov kev xav tau siab thiab cov txheej txheem zoo rau kev tuav lub tog raj kheej ua ntej sau;