Cov nyhuv ntawm PSA Oxygen Production txheej txheem hloov kho ntawm Oxygen Production Effect Nyob rau Plateau Ib puag ncig

Abstract:

Raws li kev txhim kho cyclic PSA oxygen ntau lawm txheej txheem, PSA oxygen tsim cov cuab yeej sim nrog cov txheej txheem kho tau raug tsim. Cov teebmeem ntawm lub sijhawm adsorption, lub sijhawm sib npaug ntawm lub sijhawm, lub sijhawm tu thiab cov khoom siv roj ntws ntawm cov pa oxygen hauv cov cheeb tsam toj siab tau sim kawm thiab tshawb xyuas theoretically. Cov txiaj ntsig tau pom tias tsim nyog ncua lub sijhawm adsorption yog qhov tsim nyog rau kev ua kom lub siab adsorption thiab txhim kho cov khoom siv roj, tab sis lub sij hawm adsorption ntev dhau lawm yuav ua rau lub txaj molecular sieve nkag mus, ua rau muaj kev poob qis hauv cov ntsiab lus oxygen (feem feem) ntawm cov khoom siv roj; ncua lub sij hawm sib npaug ntawm lub siab mus rau qee qhov ua rau nce siab adsorption, yog li txhim kho cov khoom siv roj; cov pa oxygen ntau lawm yog zoo dua nyob rau hauv lub sij hawm tsawg tu, thiab lub sij hawm tu lub sij hawm ntev heev yuav tsis ntxiv purity ntawm cov khoom gas, tab sis yuav ua rau ib tug loj npaum li cas ntawm high-purity gas pov tseg; Cov khoom lag luam siab cov roj ntws tau pab kom tshem tawm cov khoom sib xyaw ntawm cov khoom siv purity siab nyob rau sab saum toj ntawm lub adsorption ntauwd thiab tiv thaiv cov pa oxygen los ntawm reflux mus rau qhov chaw loj. Cov txiaj ntsig kev tshawb fawb yuav muab cov kev taw qhia theoretical rau kev ua kom zoo ntawm PSA cov pa oxygen ntau lawm hauv thaj chaw siab thiab nws cov kev ua haujlwm siv tau.

Optimization tswv yim rau PSA oxygen ntau lawm txheej txheem nyob rau hauv toj siab

Nrog rau qhov nce ntawm qhov siab, atmospheric siab txo, thiab cov pa tawm ntawm lub compressor kuj txo qis raws li. Lub sijhawm no, lub sijhawm adsorption tau txuas ntxiv los ua kom lub zog ua haujlwm nyob rau hauv ntauwd adsorption, txhim kho kev ua haujlwm ntawm cov pa oxygen-tsim molecular sieve, thiab tau txais ib qho loj dua nitrogen adsorption tus nqi, uas tuaj yeem ua tiav cov txiaj ntsig ntawm kev nce cov khoom oxygen thiab kev tsim cov pa oxygen. Qhov siab dua qhov siab, qhov qis dua qhov sib npaug ntawm cov adsorption ntauwd ntawm qhov kawg ntawm cov txheej txheem adsorption, thiab qhov qis dua qhov pib siab tau los ntawm cov adsorption ntauwd nyob rau hauv lub siab sib npaug theem tom qab decompression thiab desorption. Los ntawm kev ncua lub sij hawm sib npaug ntawm lub siab sib npaug, ntau qhov sib npaug ntawm cov roj tuaj yeem nkag mus rau hauv lub adsorption ntauwd, nce qhov pib adsorption siab, thiab cov pa oxygen molecular sieve nitrogen adsorption tus nqi yuav nce ntxiv, thiab cov khoom lag luam oxygen cov ntsiab lus tseem yuav nce ntxiv. Nws yuav tsum raug sau tseg tias lub sij hawm sib npaug ntawm lub siab tsis tuaj yeem txuas ntxiv mus tas li. Yog hais tias nws ntev dhau lawm, nitrogen yuav khiav tawm ntawm lub saturated oxygen molecular sieve thiab nkag mus rau lub desorption-ua tiav adsorption ntauwd. Nrog rau qhov nce ntawm qhov siab, qhov qis dua qhov desorption ambient siab, qhov siab dua qhov desorption degree ntawm lub adsorption ntauwd, thiab qhov kev thov rau kev tu roj yuav txo qis rau lub sijhawm no. Lub ntim tu yuav tsum maj mam txo thaum qhov siab nce. Qhov txo qhov ntim yog tso tawm raws li cov khoom siv roj, uas muaj txiaj ntsig zoo rau kev tsim cov pa oxygen thiab cov ntsiab lus oxygen. Qhov sib thooj siab tshaj plaws ntawm cov adsorption ntauwd yuav nce ntxiv nrog kev txo qis ntawm kev tu ntim, uas yog qhov zoo rau kev txhim kho cov khoom siv oxygen thiab cov pa oxygen ntau lawm ntawm molecular sieve. Nyob rau hauv kev ua haujlwm ntawm cov khoom siv qis qis, cov pa oxygen uas nyob rau saum txaj tuaj yeem tso tawm los ntawm kev ua kom cov pa huv si, uas tuaj yeem ua rau qeeb qhov tsis zoo ntawm oxygen backmixing; lub siab adsorption tuaj yeem txo qis los ntawm kev txo qhov siab sib npaug ntawm cov roj ntws, uas tuaj yeem ua kom qeeb ntawm cov pa oxygen hauv txaj; cov khoom siv roj nrog cov khoom siv hluav taws xob qis tuaj yeem hloov pauv kom tsim nyog kom txo tau cov dej ntws thiab txo cov nqi tsim khoom. Raws li kev ua haujlwm ntawm cov khoom lag luam siab, cov nyhuv ntawm lub txaj tuaj yeem txhim kho los ntawm kev ua kom cov pa ntxuav kom huv.

Xaus

NEWTEK's R & D pab pawg tau kawm txog kev cuam tshuam ntawm cov txheej txheem sib txawv (lub sijhawm adsorption, lub sijhawm sib npaug ntawm lub siab, lub sijhawm ntxuav thiab cov khoom siv roj ntws) ntawm cov pa oxygen ntawm cov pa oxygen ntau lawm nyob rau hauv toj roob hauv pes ib puag ncig, thiab nthuav tawm cov kev txhim kho thiab kev hloov kho ntawm cov pa oxygen, uas tuaj yeem muab cov ntaub ntawv tseem ceeb rau kev ua kom zoo tshaj plaws thiab kev hloov kho lub tswv yim ntawm cov txheej txheem tsim cov pa oxygen, thiab cov ntsiab lus tseem ceeb hauv qab no tau kos.
(1) Nrog rau qhov kev hloov ntawm qhov siab, muaj qhov zoo tshaj plaws adsorption lub sij hawm parameter. Yog tias lub sijhawm adsorption luv dhau lawm, cov pa oxygen ntau lawm ntawm molecular sieve yuav txo qis. Yog hais tias lub sij hawm adsorption ntev dhau lawm, lub adsorption ntauwd yuav nkag los ntawm nitrogen.
(2) Yog hais tias lub sij hawm sib npaug ntawm lub siab luv dhau lawm, qhov pib siab ntawm adsorption ntauwd yuav raug txo, cuam tshuam rau qhov kawg adsorption tus nqi ntawm nitrogen los ntawm molecular sieve. Yog hais tias lub sij hawm sib npaug ntawm lub siab ntev dhau lawm, ammonia nyob rau hauv qhov loj hloov saturation cheeb tsam ntawm molecular sieve adsorption txheej yuav desorbed thiab nkag mus rau hauv lub adsorption ntauwd uas nyuam qhuav desorbed, uas ua rau txo qis ntawm oxygen ntau lawm cov ntsiab lus.
(3) Nyob rau tib qhov siab, cov khoom lag luam cov pa oxygen ua ntej nce thiab tom qab ntawd txo qis nrog lub sijhawm tu. Muaj lub sijhawm tu kom zoo. Qhov siab dua qhov siab, qhov qis desorption siab, qhov siab dua qhov desorption degree ntawm oxygen-ua molecular sieve, thiab luv dua lub sij hawm tu kom zoo.
(4) Cov khoom lag luam zoo tshaj plaws ntawm cov pa oxygen ntws txo qis nrog nce qhov siab. Nyob rau tib qhov siab, thaum cov khoom lag luam oxygen ntws qis qis, cov ntsiab lus siab ntawm cov pa oxygen nyob rau sab saum toj ntawm cov pej thuam tsis tuaj yeem tawm hauv lub sijhawm, ua rau muaj cov pa oxygen siab nyob rau sab sauv loj hloov chaw ntawm lub adsorption ntauwd, uas inhibits adsorption ntawm nitrogen los ntawm oxygen-ua molecular sieve; Thaum cov khoom lag luam oxygen txaus siab dhau lawm, ammonia yuav nkag mus rau hauv lub txaj adsorption, ua rau cov khoom lag luam oxygen poob qis heev.