Ntawv
Tsis zoo siv
I. LUS QHIA RAU COV KEV PAB Tom qab ntawm Chav Sib Txawv Cua
Ii. Tsim thiab xaiv cov txheej txheem tseem ceeb thiab cov txheej txheem tswj kev tswj hwm loops rau cov sib txawv ntawm lub ntsiab distillation pej xeem
III. Txoj hauv kev los tiv thaiv loj ntawm cov txheej txheem tswj thiab xaiv cov txheej txheem tswj cov khoom siv hloov tawm
IV. Kev ntsuas los tiv thaiv kev hloov kho cov txheej txheem
V. Xaus
Chav sib cais ua kom muaj cov ntsiab lus siv kub tau txais kom paub raws li cov hauv paus ntsiab lus ntawm cov roj distillation roj-kua sib npaug. Los ntawm kev ua haujlwm uas sib haum rau cov roj-kua sib npaug ntawm cov khoom siv, nws tsis ncaj qha rau cov khoom siv ntawm cov khoom muaj pes tsawg leeg hloov thiab tuaj yeem teb ncaj qha thiab sai sai teb cov txheej txheem tiag tiag. Cov kev tswj hwm cov qauv ntawm cov txheej txheem no tuaj yeem cuam tshuam ncaj qha thiab ua tiav rau cov txheej txheem tswj kev ua haujlwm ntawm cov txheej txheem distillation kev tswj hwm cov qauv nrog cov khoom siv dav dav. Daim ntawv no tsom xam cov cascade tswj cov txheej txheem rau qhov kub ntawm lub distillation pej thuam nyob rau hauv lub tshuab sib cais.
Lo lus tseem ceeb
Cov chav sib cais ntawm huab cua; Roj-ua cov cai sib npaug; Cascade tswj
1. Taw qhia txog yav tom qab thev naus laus zis ntawm chav sib cais
Cov tsev sib cais ntawm cov pa sib cais feem ntau siv cov xim sib txawv ntawm cov pa, nitrogen thiab tom qab ntawd cov hws sib cais kom sib cais oxygen, nitrogen thiab argon hauv huab cua. Hom no yog hu ua cryogenic distillation. Lub ntsiab distillation pej thuam muaj lub luag haujlwm rau cais oxygen thiab nitrogen nyob saum huab cua, thiab tib lub sijhawm tsim cov khoom siv ruents rau cov khoom siv argon rau kev tawm tsam argon rau kev rho tawm argon. Cov khoom siv raw yuav raug thauj mus rau Argon distillation system kom tshem tawm oxygen thiab nitrogen. Argon extraction kuj siv cryogenic distillation.
Lub kaw lus distillation yog cov txheej txheem tseem ceeb ntawm cov pa sib cais, thiab ntauwd pej thuam yog cov khoom tseem ceeb yog cov khoom tseem ceeb. Thaum lub sij hawm ua haujlwm, kev hloov pauv hauv cov pa ua kom haum thiab cov qauv tsim khoom yuav cuam tshuam cov txheej txheem distillation. Lub xeev ua hauj lwm ntawm lub ntsiab distillation pej thuam yog lub ntsiab tseem ceeb cuam tshuam rau argon distillation. Tsuas yog los ntawm kev ntseeg tau tias lub ntsiab distillation pej thuam yog nyob rau hauv cov txheej txheem kev ua haujlwm zoo tshaj plaws thiab cov haujlwm ua haujlwm ntawm tus neeg hais lus Crudenser yuav tsum ua kom zoo nkauj. Yog tias cov nitrogen cov ntsiab lus nyob rau hauv cov roj raw feem ntau tshaj plaws ntawm cov condenser, tab sis kuj tseem cuam tshuam rau cov pa thiab nitrogen sib cais ntawm cov Cov ntsiab lus tseem ceeb yog tias cov neeg ua haujlwm tsis txaus ntseeg, thiab txawm tias cov teeb meem uas cov pa roj oxygen thiab cov pa hluav taws xob tsis zoo rau ntawm cov pa sib cais ntawm cov pa sib cais. Lub ntsiab distillation ntauwd thiab cov argon distillation ntauwd cuam tshuam thiab txhawb lwm tus. Tsuas yog los ntawm kev ua kom zoo tshaj plaws lub ntsiab distillation ntauwd tuaj yeem siv cov khoom sib cais ntawm cov pa sib cais ua ke txog lub xeev zoo tagnrho.
Lub zog tsis siv neeg ntawm lub ntsiab distillation ntauwd confillivity kub solidation ntauwd ntawm cov kev ua haujlwm distillation ntawm cov pa sib cais. Raws li cov khoom siv hauv cov khoom ntawm Argon distillation system, cov leeg nyoos sib txawv, namely "nitrogen tivthaiv ntau dua tus qauv. Tsuas yog los ntawm kev txhawb nqa cov distillation ntawm lub ntsiab distillation pej thuam tuaj yeem tshwm sim ntawm kev ua haujlwm txawv txav ntawm "Nitrogen plugging" tau tiv thaiv.
Cov txheej txheem kev siv tshwj xeeb yog: teeb cov txheej txheem pov tseg tswj hwm lub voj voog ntawm lub ntsiab kev tswj hwm tau zoo li cov khoom siv ntsuas kub ntawm cov txheej txheem ntsuas kub Uas yog, nyob rau lub hauv paus ntawm cov khoom lag luam ua kua ntawm cov khoom siv ua kua, yog li cov khoom siv ua kua ntawm lub ntsiab ntawm cov pej thuam Hloov, yog li paub txog kev tswj kom meej ntawm qhov rhiab rhiab ntawm lub ntsiab distillation pej thuam.
Cov tub ntxhais chav ntawm chav sib cais ua ke yog qhov system distillation. Qhov rhiab ntawm lub ntsiab distillation pej thuam yog txoj haujlwm uas cov concient hloov cov txheej txheem ntawm cov pej thuam distillation Tower. Raws li qhov siab ntawm cov pej thuam distillation, ntawm txhua qhov kev hloov pauv roj hmab kev hloov pauv loj, muaj qhov chaw sib txuas ntawm cov kev hloov pauv loj tshaj plaws Cov qauv tsim qauv ntawm qhov no yog suav los ntawm cov txheej txheem simulation software, sib piv mus rau qhov kev sib txawv ntawm cov kua qib ntawm cov pa roj oxygri kua-kua sib npaug theem daim duab. Los ntawm theoretical tsom xam thiab lub ntsiab lus, rhiab rhiab kis kub yog cov ntauwd roj-kua sib piv rau theem siab tshaj plaws ntawm kev hloov pauv tau.
Cov ntaub ntawv ntawm qhov rhiab ntawm qhov kub thiab txias ntawm lub ntsiab distillation pej thuam tau kuaj los ntawm DCS yog muab piv nrog cov ntaub ntawv tsim kho. Lub ntsiab txheej txheem tswj lub voj pid (sib npaug tswj hwm lub voj ntawm cov txheej txheem tswj hwm ntawm lub ntsiab lus tseem ceeb tsim kub thiab ua lub luag haujlwm PID. Qhov ntsuas ntsuas ntsuas ntsuas ntsuas yog -187.5 degree. Lub ntsiab txheej txheem tswj lub voj yog txhais tau tias yog TIC1717, thiab nws cov khoom siv pid muaj tseeb yog lub pej thuam ua kua dej nitrogen tso tawm ntws tswj. Ntawm lub hauv paus ntawm muab tus nqi ntawm cov kua nitrogen khoom fic1630 extracted los ntawm cov pid tswj thiab them nyiaj, yog li paub txog kev tswj hwm ntawm cov pej thuam cov tseem ceeb. Los ntawm REFUX piv, txoj kev ua haujlwm tseem ceeb tau muab cov khoom siv sib txawv ntawm cov khoom lag luam sab sauv ntawm cov khoom lag luam sab saud los ntawm cov ntu sab sauv strawb yog tswj tau yog. Yog hais tias lub kaum roob sej zog rhiab kub TI1717 yog qis dua qhov kev tsim tawm ntawm TIC1630, yog li ntawd cov khoom lag luam tseem ceeb ntawm kev tsim tawm los ntawm Ti1717 tau pom tseeb. Txij li thaum cov khoom siv raw ua rau cov ntu ntawm cov pej thuam tseem pheej muaj ntau yam ntawm cov pa hluav taws xob ntawm cov nitrogen cheeb tsam ntawm ntu ntu.
Raws li cov txheej txheem tswj cov ntsiab lus saum toj no, cov txheej txheem tseem ceeb tswj tau cov voj ntawm cov txheej txheem ntawm kev ua haujlwm ntawm cov txheej txheem cua. Kev xaiv ntawm lub rhiab qhov kub ntawm lub ntsiab distillation pej thuam yog raws cov txheej txheem simulation kev xam thiab roj-kua sib npaug kev xav. Lub ntsiab lus nrog cov kev hloov pauv loj tshaj plaws yog cov txheej txheem cov txheej txheem uas tuaj yeem nthuav dav sai sai ntawm cov txheej txheem hloov thiab cov txheej txheem ua haujlwm hloov. Cov txheej txheem Ristillation ntauwd los ntawm ntu cov pa dej ntawm cov huab cua ua kua ntoo los ntawm kev sib cav sib ceg ua ntauwd. Los ntawm kev daws cov teeb meem tswj cov teeb meem tshwm sim los ntawm cov txheej txheem tsim kho kom zoo nkauj, kev tswj hwm tau zoo tuaj yeem hloov kho tau zoo.
Txhawm rau txhim kho kev tswj hwm ntawm cov txheej txheem tswj tseem ceeb yuav tsum tau txhim kho qhov kev paub txog qhov tseeb ntawm cov ntaub ntawv TIC1717 yuav tsum tau hloov dua tshiab thiab yog li ua tiav cov txheej txheem tswj thiab ua tau zoo.
Los ntawm cov txheej txheem kev sib txuas, qhov cuam tshuam ntawm lub ntsiab distillation ntauwd kua rienditivity Tower thiab tau txais kev pab zoo tshaj plaws thiab siv tau cov kev hloov pauv. Ib qho ntxiv, kho kom raug thiab them cov khoom lag luam hauv cov khoom nitrogen tsis pub dhau ib qho yog cov peev txheej tshaj plaws rau cov lag luam ntau lawm thiab ua kom muaj kev lag luam ruaj khov rau hauv chav tsev loj. Cov zis ntawm cov khoom siv roj tseem ceeb ntawm chav sib cais yog qhov taw qhia tseem ceeb kom ntseeg tau cov neeg siv khoom tom ntej. Nws tsis tuaj yeem hloov kho thaum lub sijhawm ntau lawm. Los kho cov nyiaj ntawm cov kua nitrogen tsis pub dhau cov neeg xav tau ntawm cov neeg siv roj av tom ntej, tab sis kuj yog qhov tsawg kawg nkaus.
4. Kev ntsuas los tiv thaiv cov txheej txheem tswj hwm kev hloov kho
Lub ntsiab distillation ntauwd confillibron tsis siv neeg tswj kev pab cuam yog raws li cov nyiaj ntawm cov kua nitrogen outpect cov khoom txaus. Nws tsuas yog ib qho kev them nyiaj tsis siv neeg tswj hom ntawm cov pa sib cais raws cov kev tab kaum. Nws tsis tuaj yeem ua cov txheej txheem tswj tau thaum lub tsev sib cais muaj ntau ntawm cov thauj khoom hloov. Yog li ntawd, thaum lub distillation ntauwd rhiab tsis zoo tsis siv neeg txoj kev pab cuam uas ua rau cov zis ua kua plees ntawm cov txheej txheem ntawm kev tswj hwm lub voj tic1717. Los ntawm kev tswj hwm cov kev tswj hwm cov khoom siv tsawg, thiab txhais tau tias tsim cov khoom siv ua kua, kom muaj qee yam kev tswj hwm cov zis tau tswj hwm kom tsis txhob overshoot.
Raws li cov ntaub ntawv ntawm cov qauv muaj peev xwm ntawm cov txheej txheem tswj cov roj ntsha, thiab kho cov txheej txheem loj heev Los ntawm kev siv lub tshuab hluav taws xob tsis siv neeg ntawm cov kua ua kua, thiab cov txheej txheem tseem ceeb ntawm kev tswj hwm tau raws li kev tswj hwm tau ruaj khov ntawm kev siv cov distillation ruaj khov.
Hauv kev tswj hwm cov twj paj nruag thiab metres, txuas ntxiv hloov cov twj thiab kev tswj hwm kom tau zoo dua los txhim kho cov qib kev lag luam kev lag luam. Hauv kev muaj kev lag luam tsim khoom, DCS system muab lub zog platform rau kev ua kom txawj ntse ntawm ntau cov txheej txheem ntau lawm. Yog tias cov txheej txheem engineers thiab automation encessely ua ke ntawm ntau cov qauv ua kom zoo dua tshiab ntawm cov pej thuam qhov distillation ntau tuaj yeem pom tau zoo. Cov kev daws teeb meem cascade tswj tau muab los ntawm cov tswv yim ntawm cov txheej txheem Senior engineers. Cov neeg ua haujlwm yuav tsum tau ua kom haum cov txheej txheem tswj cov txheej txheem, coj mus rhaub cov cuab yeej siv peev txheej, thiab ua haujlwm ruaj khov thiab txhim kho kev lag luam ntau lawm. Nyob rau tib lub sijhawm, los ntawm kev siv tshuab thev naus laus zis tuaj yeem ua lub luag haujlwm ntxiv rau yav tom ntej kev lag luam thiab kev ua lag luam ua rau yav tom ntej ci dua.
