Xov xwm

Tag nrho rectification ntawm argon yog cais oxygen los ntawm argon nyob rau hauv ib tug crude argon kem kom tau crude argon nrog oxygen cov ntsiab lus tsawg tshaj li 1 × 10-6 ncaj qha, thiab ces cais nws los ntawm nplua argon kom tau zoo argon nrog purity ntawm 99.999%.

Nrog rau txoj kev loj hlob sai ntawm huab cua sib cais tshuab thiab cov kev xav tau ntawm kev ua lag luam, ntau thiab ntau cov cua sib cais chav txais yuav cov txheej txheem ntawm kev tsim argon tsis muaj hydrogen los tsim cov khoom purity argon.Txawm li cas los xij, vim qhov nyuaj ntawm kev ua haujlwm ntawm argon ntau lawm, ntau chav sib cais cua nrog argon tsis nqa argon, thiab qee chav nyob hauv kev ua haujlwm ntawm argon system tsis txaus siab vim qhov hloov pauv ntawm kev siv cov pa oxygen thiab kev txwv ntawm kev ua haujlwm theem.Los ntawm cov kauj ruam yooj yim hauv qab no, tus neeg teb xov tooj tuaj yeem nkag siab yooj yim ntawm kev tsim argon yam tsis muaj hydrogen!

Commissioning ntawm argon ua system

* V766 nyob rau hauv tag nrho cov txheej txheem ua ntej tso tawm ntxhib argon kem rau hauv zoo argon kem;Lub tshuab ua kua thiab tso tawm li qub V753 thiab 754 nyob rau hauv qab ntawm crude argon ntauwd kuv (24 ~ 36 teev).

* Tag nrho cov txheej txheem qhib argon tawm ntxhib argon ntauwd Kuv txhais argon ntauwd valve V6;Tsis-condensing gas paug valve V760 nyob rau sab saum toj ntawm argon ntauwd;Precision argon ntauwd, kua tshuab hauv qab ntawm precision argon ntsuas lub tog raj kheej, tso tawm li qub V756 thiab V755 (precooling precision argon ntauwd tuaj yeem nqa tawm tib lub sijhawm raws li precooling coarse argon ntauwd).

Tshawb xyuas lub twj tso kua mis argon

* Hluav taws xob tswj qhov system - thaiv, tswj thiab tso saib yog qhov tseeb;

* Sealing gas - seb lub siab, ntws, kav dej yog qhov tseeb thiab tsis xau;

* Lub cev muaj zog rotation kev taw qhia - taw tes lub cev muaj zog, paub meej tias qhov tseeb kev sib hloov;

* Piping ua ntej thiab tom qab lub twj tso kua mis - xyuas kom paub tseeb tias cov kav dej yog du.

Txheeb xyuas qhov ntsuas qhov system argon kom meej

(1) Rough argon ntauwd I, Rough argon ntauwd II kuj (+) (-) siab raj, transmitter thiab tso saib ntsuas yog lawm;

(2) Txawm hais tias tag nrho cov kua ntsuas ntsuas (+) (-) lub siab lub raj, lub tshuab xa hluav taws xob thiab cov khoom siv hauv argon yog qhov tseeb;

(3) Seb lub raj siab, lub tshuab xa hluav taws xob thiab cov cuab yeej tso saib yog qhov tseeb ntawm txhua lub ntsiab lus siab;

(4) Seb lub argon ntws npaum li cas FI-701 (lub orifice phaj nyob rau hauv lub thawv txias) (+) (-) siab raj, transmitter thiab tso saib ntsuas yog lawm;

⑤ Tshawb xyuas seb txhua qhov tsis siv neeg li qub thiab lawv cov kev hloov kho thiab kev sib cuam tshuam puas yog.

Lub ntsiab ntauwd ua haujlwm kho mob

* Ua kom cov pa oxygen ntau ntxiv nyob rau hauv qhov chaw ntawm kev ua kom cov pa purity;

* Tswj cov kab qis qis uas muaj cov pa uas muaj cov kua dej npliag 36 ~ 38% (kua nitrogen txwv rau sab sauv valve V2);

* Txo qhov nthuav dav nyob rau hauv qhov chaw ntawm kev ua kom cov kua txias txias.

Cov kua hauv coarse argon kem

* Ntawm qhov chaw ntawm kev ua kom txias ntxiv kom txog rau thaum qhov kub ntawm lub argon ntauwd tsis poob lawm (lub tshuab tawm thiab tso tawm li qub tau raug kaw), cov cua ua kua tau qhib me ntsis (nruab nrab) thiab ntws mus rau hauv condensing evaporator valve V3 ntawm crude argon ntauwd. Kuv ua kom lub condenser ntawm crude argon ntauwd intermittently ua hauj lwm los tsim backflow kua, txias lub ntim ntawm crude argon ntauwd kuv kom huv si thiab accumulate nyob rau hauv qab ib feem ntawm lub pej thuam;

Tswv yim: Thaum qhib lub V3 valve thawj zaug, ua tib zoo saib xyuas qhov kev hloov siab ntawm PI-701 thiab tsis txhob cuam tshuam hnyav (≤ 60kPa);Obact cov kua theem LIC-701 nyob rau hauv qab ntawm crude argon ntauwd kuv los ntawm kos.Thaum nws nce mus txog 1500mm ~ tag nrho cov nplai, nres precooling thiab kaw V3 valve.

Precooling argon twj tso kua mis

* Nres valve ua ntej qhib lub twj tso kua mis;

* Tshuab tawm lub valve V741 thiab V742 ua ntej qhib lub twj tso kua mis;

* qhib me ntsis (intermittently) lub twj tso kua mis tom qab tshuab tawm valve V737, V738 kom txog thaum cov kua tawm tsis tu ncua.

Tswv yim: Txoj haujlwm no yog ua raws li kev taw qhia ntawm argon twj tso kua mis rau thawj zaug.Teeb meem kev nyab xeeb los tiv thaiv frostbite.

Pib lub twj tso kua mis argon

* Qhib tag nrho rov qab valve tom qab lub twj tso kua mis, tag nrho kaw lub nres valve tom qab lub twj tso kua mis;

* Pib argon twj tso kua mis thiab tag nrho qhib lub nraub qaum nres valve ntawm argon twj tso kua mis;

* Saib xyuas tias lub twj tso kua mis siab yuav tsum ruaj khov ntawm 0.5 ~ 0.7Mpa (G).

Crude argon kab

(1) Tom qab pib lub twj tso kua mis argon thiab ua ntej qhib V3 valve, cov kua theem ntawm LIX-701 yuav txo qis tsis tu ncua vim cov kua poob.Tom qab pib lub twj tso kua mis argon, V3 valve yuav tsum qhib kom sai li sai tau kom lub condenser ntawm argon ntauwd ua haujlwm thiab tsim cov kua dej rov qab.

(2) V3 valve qhib yuav tsum qeeb heev, txwv tsis pub cov pej thuam tseem ceeb yuav ua rau muaj kev hloov pauv loj, cuam tshuam rau purity ntawm oxygen, crude argon ntauwd tom qab ua haujlwm qhib lub argon twj tso kua mis xa tawm valve (qhib nyob ntawm lub twj tso kua mis), qhov kawg xa khoom valve thiab rov qab valve kom ruaj khov FIC-701 kua theem;

(3) Kev tiv thaiv ntawm ob kab argon crude yog pom.Qhov kev tiv thaiv ntawm ib txwm crude argon kem II yog 3kPa thiab cov crude argon kem kuv yog 6kPa.

(4) Kev ua hauj lwm ntawm lub ntsiab pej thuam yuav tsum tau ua tib zoo saib thaum muab argon crude rau hauv.

(5) Tom qab qhov kev tiv thaiv zoo li qub, lub ntsiab ntauwd tuaj yeem tsim tau tom qab lub sijhawm ntev, thiab tag nrho cov haujlwm saum toj no yuav tsum me me thiab qeeb;

(6) Tom qab thawj zaug argon system tsis kam yog qhov qub, cov ntsiab lus oxygen ntawm cov txheej txheem argon ncav cuag tus qauv rau ~ 36 teev;

(7) Nyob rau theem pib ntawm argon kem ua haujlwm, qhov kev rho tawm ntawm cov txheej txheem argon yuav tsum raug txo qis (15 ~ 40m³ / h) txhawm rau txhim kho purity.Thaum lub purity yog ze li qub, tus nqi ntawm cov txheej txheem argon yuav tsum tau nce (60 ~ 100m³ / h).Txwv tsis pub, qhov tsis sib xws ntawm argon kem concentration gradient yuav yooj yim cuam tshuam rau kev ua haujlwm ntawm lub ntsiab kem.

Ntshiab argon kem

(1) Tom qab cov ntsiab lus oxygen ntawm cov txheej txheem argon yog qhov qub, V6 valve yuav tsum tau maj mam qhib kom tig lub V766 thiab cov txheej txheem argon tau nkag mus rau hauv cov pej thuam zoo argon;

(2) cov kua nitrogen chav valve V8 ntawm argon ntauwd yog qhib tag nrho los yog cam khwb cia kom tswj cov nitrogen sab siab PIC-8 ntawm condensing evaporator ntawm argon ntauwd ntawm 45kPa;

(3) maj mam qhib cov kua nitrogen mus rau hauv lub condensation evaporator valve V5 ntawm argon kem kom ua hauj lwm load ntawm argon kem condenser;

(4) Thaum V760 qhib kom zoo, nws tuaj yeem qhib tag nrho ntawm thawj theem ntawm qhov tseeb argon ntauwd.Tom qab kev ua haujlwm ib txwm muaj, qhov ntws ntawm cov roj uas tsis yog condensable tso tawm los ntawm sab saum toj ntawm qhov tseeb argon ntauwd tuaj yeem tswj tau li ntawm 2 ~ 8m³ / h.

Lub siab tsis zoo ntawm PIC-760 precision argon ntauwd yog ib qho yooj yim tshwm sim thaum cov kev ua haujlwm hloov pauv me ntsis.Lub siab tsis zoo yuav ua rau cov huab cua ntub dej sab nraum lub thawv txias kom nqus mus rau hauv qhov tseeb argon ntauwd, thiab cov dej khov yuav khov rau ntawm phab ntsa ntawm lub raj thiab qhov chaw ntawm cov khoom siv hluav taws xob, ua rau muaj kev thaiv.Yog li ntawd, lub siab tsis zoo yuav tsum raug tshem tawm (tswj qhov qhib ntawm V6, V5 thiab V760).

(6) Thaum cov kua theem nyob rau hauv qab ntawm precision argon ntauwd yog ~ 1000mm, me ntsis qhib lub nitrogen txoj kev valve V707 thiab V4 ntawm lub reboiler nyob rau hauv qab ntawm lub precision argon ntauwd, thiab tswj qhov qhib raws li qhov teeb meem.Yog tias qhov qhib loj dhau lawm, lub siab ntawm PIC-760 yuav nce ntxiv, uas ua rau qhov txo qis ntawm cov txheej txheem argon Fi-701.Nws yog qhov zoo dua los tswj PIC-760 precision argon ntauwd siab ntawm 10 ~ 20kPa yog tias nws qhib me me dhau.

Argon cov ntsiab lus hloov ntawm argon feem

Cov ntsiab lus ntawm argon hauv argon feem txiav txim siab qhov rho tawm ntawm argon thiab cuam tshuam ncaj qha rau cov khoom lag luam argon.Qhov zoo argon feem muaj 8 ~ 10% argon.Cov yam ntxwv cuam tshuam rau cov ntsiab lus argon ntawm argon feem ntau yog raws li hauv qab no:

* Oxygen ntau lawm - ntau dua cov pa ntau lawm, ntau dua cov ntsiab lus ntawm argon hauv argon feem, tab sis qhov qis dua cov pa purity, qhov siab dua cov ntsiab lus nitrogen hauv cov pa, qhov kev pheej hmoo ntawm nitrogen plug ntau dua;

* Expansive air volume - qhov me dua qhov nthuav dav huab cua ntim, qhov siab dua cov ntsiab lus argon ntawm argon feem, tab sis qhov me dua qhov nthuav dav cua ntim, qhov me me ntawm cov khoom ua kua;

* Argon feem txaus tus nqi - Argon feem ntws tus nqi yog cov crude argon kem load.Qhov me me ntawm qhov load, qhov siab dua cov ntsiab lus ntawm argon feem, tab sis qhov me dua qhov load, qhov me me ntawm argon ntau lawm.

Kev hloov kho argon ntau lawm

Thaum lub kaw lus argon ua haujlwm zoo thiab nquag, nws yog qhov tsim nyog los kho cov khoom tsim tawm ntawm argon kom ncav cuag tus qauv tsim.Kev hloov kho ntawm lub ntsiab pej thuam yuav tsum tau ua raws li Tshooj 5. Qhov ntws ntawm argon feem nyob ntawm qhov qhib ntawm V3 valve thiab qhov ntws ntawm cov txheej txheem argon nyob ntawm qhov qhib ntawm V6 thiab V5 valve.Lub hauv paus ntsiab lus ntawm kev hloov kho yuav tsum qeeb li sai tau!Nws tuaj yeem nce qhov qhib ntawm txhua lub valve los ntawm tsuas yog 1% txhua hnub, kom cov neeg ua haujlwm muaj peev xwm paub txog kev hloov pauv ntawm kev lim dej, kev hloov pauv ntawm oxygen noj thiab hloov pauv ntawm daim phiaj hluav taws xob.Yog tias qhov purity ntawm oxygen thiab argon yog qhov qub thiab kev ua haujlwm ruaj khov, cov khoom tuaj yeem txuas ntxiv mus ntxiv.Yog tias qhov kev ua haujlwm muaj qhov tsis zoo, nws qhia tau tias qhov kev ua haujlwm tau mus txog qhov txwv thiab yuav tsum tau kho rov qab.

Kev kho ntawm nitrogen plug

Dab tsi yog nitrogen plug?Lub load ntawm lub condensation evaporator txo qis lossis txawm tias tsis ua haujlwm, thiab qhov kev hloov pauv ntawm argon ntauwd txo kom txog thaum 0, thiab argon system tsis ua haujlwm.Qhov tshwm sim no hu ua nitrogen plug.Kev ua haujlwm ruaj khov ntawm cov pej thuam tseem ceeb yog tus yuam sij kom tsis txhob muaj nitrogen jam.

* Kev kho me ntsis nitrogen ntsaws: qhib siab V766 thiab V760 thiab txo qis cov pa oxygen.Yog tias qhov kev tiv thaiv tuaj yeem ruaj khov, tag nrho cov kab ke tuaj yeem rov ua haujlwm li qub tom qab cov nitrogen nkag mus rau hauv argon system tas lawm;

* hnyav ntawm kev kho nitrogen: ib zaug tshwm sim siab qhov kev hloov pauv hauv cov khoom siv tsis zoo argon, thiab lub sijhawm luv luv rau hauv 0, qhia tau hais tias kev ua haujlwm ntawm argon ntauwd tawg, lub sijhawm no yuav tsum qhib tag nrho V766, V760, zaum argon twj xa tawm ntawm lub valve, ces qhib tag nrho tom qab argon twj tso kua mis rov qab tiv thaiv, zaum V3, sim ua cov kua argon ntauwd nyob rau hauv argon ntauwd, thiaj li tsis txhob muaj kev puas tsuaj ntxiv ntawm oxygen purity tsim nyog rau oxygen ntau lawm, xws li kev ua hauj lwm ntawm lub ntsiab pej thuam rau hauv argon. pej thuam dua tom qab rov zoo li qub.

Zoo tswj ntawm argon system kev khiav hauj lwm mob

① Qhov sib txawv ntawm qhov sib txawv ntawm cov pa thiab nitrogen yog qhov loj vim tias cov ntsiab lus kub ntawm cov pa oxygen thiab argon nyob ze rau ib leeg.Nyob rau hauv cov nqe lus ntawm qhov nyuaj ntawm fractionation, qhov nyuaj ntawm kev kho argon yog ntau dua li ntawm kev kho cov pa oxygen.Cov pa purity nyob rau hauv argon tuaj yeem ncav cuag tus qauv hauv 1 ~ 2 teev tom qab kev ua haujlwm ntawm cov kab nruab nrab thiab sab saud, thaum cov pa purity hauv argon tuaj yeem ncav cuag tus qauv hauv 24 ~ 36 teev tom qab kev ua haujlwm ib txwm ua tom qab kev ua haujlwm ntawm cov khoom siv. sab sauv thiab qis yog tsim.

(2) Lub kaw lus argon yog qhov nyuaj rau kev tsim thiab yooj yim rau kev tawg hauv kev ua haujlwm, lub kaw lus yog qhov nyuaj thiab lub sijhawm debugging ntev.Lub tshuab hluav taws xob nitrogen tuaj yeem tshwm sim nyob rau lub sijhawm luv luv hauv kev ua haujlwm yog tias muaj qhov tsis zoo.Nws yuav siv sij hawm li 10 ~ 15 teev los tsim kom muaj qhov tsis kam ntawm cov crude argon kem kom ncav cuag qhov qub purity ntawm oxygen hauv argon yog tias kev ua haujlwm tuaj yeem ua raws li txoj cai 13 kom raug kom tag nrho cov khoom sib xyaw argon hauv argon kab.

(3) Tus neeg teb xov tooj yuav tsum paub txog cov txheej txheem, thiab muaj qee yam kev pom hauv cov txheej txheem debugging.Txhua qhov kev hloov me me ntawm argon system yuav siv sij hawm ntev los xav txog hauv kev ua haujlwm, thiab nws yog txwv tsis pub siv ntau zaus thiab kho cov kev ua haujlwm zoo, yog li nws tseem ceeb heev uas yuav tsum ua kom lub siab ntshiab thiab lub siab nyob twj ywm.

(4) Cov txiaj ntsig ntawm argon extraction yog cuam tshuam los ntawm ntau yam.Vim hais tias lub lag luam elasticity ntawm argon system yog me me, nws yog tsis yooj yim sua kom ncab lub lag luam elasticity nruj heev nyob rau hauv lub sij hawm ua hauj lwm, thiab qhov hloov pauv ntawm kev ua hauj lwm tej yam kev mob yog heev unfavorable rau lub extraction tus nqi.Kev lag luam chemical, non-ferrous smelting thiab lwm yam khoom siv nrog oxygen extraction tus nqi yog ruaj khov dua li kev sib tshuam siv cov pa hlau ua kom siab dua;Lub argon rho tawm tus nqi ntawm ntau qhov sib cais huab cua hauv kev lag luam steelmaking yog siab dua li ntawm ib qho cua cais cov pa oxygen.Qhov kev rho tawm ntawm argon nrog cov huab cua loj sib cais yog siab dua li qhov sib cais me me.Qhov kev rho tawm ntawm qib siab ceev ceev ua haujlwm siab dua qhov kev ua haujlwm qis.Cov khoom siv txhawb nqa qib siab muaj qhov siab argon rho tawm tus nqi (xws li kev ua haujlwm ntawm kev nthuav dav; Tsis siv neeg li qub, qhov tseeb ntawm cov cuab yeej tshuaj ntsuam xyuas, thiab lwm yam).