Nitrogen tshuab tsim kev ua tiav tus qauv
1. Air Division Nitrogen System ntawm Ministry of Electronics Kev Lag Luam: JB6427/92 Txuj Ci
2. Kev tswj hluav taws xob thaiv, teeb tsa: GB5226-96 kev siv Xim yog ua tiav raws li JB2536-80
Siab Viav Vias Adsorption. PSA kom luv, yog cov thev naus laus zis sib cais tshuab tshiab, nws muaj qhov zoo hauv qab no: ⑴ cov khoom lag luam huv siab. Feem ntau tuaj yeem ua haujlwm ntawm chav sov thiab qis qis, rov tsim lub txaj tsis muaj cua sov, txuag hluav taws xob kev lag luam. ⑶ Cov cuab yeej siv yooj yim, yooj yim rau kev khiav lag luam thiab tswj hwm. Kev ua haujlwm txuas mus ntxiv tuaj yeem ua haujlwm tau zoo. Yog li ntawd, thaum cov thev naus laus zis tshiab no tawm los, nws muaj kev txhawj xeeb los ntawm kev lag luam ntawm ntau lub tebchaws, sib tw tsim thiab tshawb fawb, txhim kho sai, thiab paub tab zuj zus.
(Keeb kwm ntawm psa nitrogen ntau lawm)
Xyoo 1960, Skarstrom tau thov PSA patent. Nws siv 5A zeolite molecular sieve li adsorbent thiab siv ob lub txaj PSA cov cuab yeej cais cov pa oxygen los ntawm huab cua. Cov txheej txheem tau txhim kho thiab muab tso rau hauv kev tsim khoom lag luam hauv xyoo 1960. Xyoo 1980s, daim ntawv thov kev lag luam ntawm psa thev naus laus zis tau ua tiav kev txhim kho, feem ntau yog siv cov pa thiab nitrogen sib cais, huab cua kom qhuav thiab ua kom huv, hydrogen purification thiab lwm yam. Ntawm lawv, kev txhim kho thev naus laus zis ntawm kev sib cais oxygen thiab nitrogen yog kev sib xyaw ntawm cov adsorbent tshiab carbon molecular sieve thiab lub zog viav vias adsorption cais O2 thiab N2 hauv huab cua, thiaj li tau txais nitrogen.
Nrog kev txhim kho kev ua tau zoo thiab kev ua tau zoo ntawm cov txheej txheem molecular, nrog rau kev txhim kho txuas ntxiv ntawm cov txheej txheem nrawm viav vias adsorption txheej txheem, kev ua kom huv thiab rov ua tau zoo ntawm cov khoom txuas ntxiv txhim kho, uas ua rau siab viav vias adsorption hauv kev paub txog kev lag luam hauv paus thiab kev lag luam.
Txij li kev qhia txog PSA thev naus laus zis los ntawm Dalian Tshuaj Tshawb Fawb Lub Koom Haum, Hangzhou Boxiang Gas Company tau cog lus rau kev tshawb fawb, kev hloov pauv tshiab thiab txhim kho PSA thev naus laus zis, thiab thawj zaug ua rau kev lag luam thev naus laus zis hauv Suav teb. Hangzhou Boxiang tuam txhab nyob rau ntau xyoo ntawm cov cuab yeej siv
Hauv cov txheej txheem ntawm kev tsim khoom thiab kev lag luam, ntau dua 1000 teev cov cuab yeej tau muab tso rau hauv kev lag luam hauv ntau yam lag luam hauv Suav teb.
Cov nitrogen los ntawm cov khoom siv nitrogen nkag mus rau hauv lub cg-6 nitrogen buffer tank thiab tau lim los ntawm bxf-16 cov plua plav lim kom tau txais cov nitrogen huv nrog qhov huv ntawm 98% thiab tawm los ntawm 900Nm3/h. Qhov tso zis siab yog ≥ 0.5mpa (kho tau), cov cua hauv qhov chaw huab cua yog ≤-40 ℃, cov ntsiab lus roj yog ≤0.001 PPM, thiab cov hmoov av yog ≤0.01μm. Thaum kawg, cov nitrogen ua tiav nkag mus rau hauv lub tank tso nitrogen (teeb tsa raws li tus neeg siv yuav tsum tau ua) thiab tau thauj mus rau tus neeg siv cov pa roj.
Kev piav qhia ntawm cov yam ntxwv tswj tsis siv neeg ntawm PSA nitrogen ua tshuab
A. Nitrogen ua cov cuab yeej siv PLC S7-200 (programmable logic controller) los ntawm SIEMENS, Lub Tebchaws Yelemees. Chav tsev muaj kev tswj tau zoo thiab tuaj yeem nthuav tawm ntau yam kev ua haujlwm, xwm txheej thiab teeb meem txhaum cai ntawm cov cuab yeej.
B. Nitrogen purity tau kuaj pom hauv online ntawm lub sijhawm. Thaum cov nitrogen purity tsim los ntawm nitrogen ua cov cuab yeej qis dua cov txheej txheem teeb tsa (nitrogen purity index xav tau los ntawm cov neeg siv khoom), lub kaw lus yuav ceeb toom thiab khoob tas li. Tom qab cov cuab yeej pib, lub solenoid valve yuav cia li qhib lub qhov tso pa nitrogen thiab kaw lub qhov hluav taws xob nitrogen tom qab tau txais lub teeb liab tswj los ntawm nitrogen analyzer. Qhov tsis tsim nyog nitrogen yuav cia li tso tawm. Thaum nitrogen purity nce mus txog lub hom phiaj, lub qhov tso pa tawm tau kaw thiab lub qhov hluav taws xob nitrogen qhib tau qhib rau cov khoom tsim nyog nitrogen. Hauv tag nrho cov txheej txheem ntawm kev siv, tsis muaj phau ntawv ua haujlwm.
Hom C, BXN nitrogen ua cov cuab yeej thiab cov cuab yeej ua kom huv tau nruab nrog lub tshuab tsis siv neeg, ntawm qhov ntsuas nitrogen tuaj yeem teeb tsa nitrogen zoo purity tso cai txwv qis, thaum nitrogen purity qis dua qhov teeb tsa tus nqi qis dua kaw suab thiab teeb lub tswb, thiab cia li qhib lub qhov tso pa tawm kom tsis tsim nyog nitrogen tshuab tawm, thaum rov qab mus rau qhov huv huv, tso lub valve cia li kaw, cov pa nitrogen los ntawm cov pa tso tawm ib txwm tso tawm.
D, pneumatic valve nrog valve hloov qhia tus pas nrig, nkag siab, yog qhov lav tau ntawm kev ua haujlwm tau zoo ntawm cov khoom siv nitrogen.
E, txiv maj phaub lev lub tog raj kheej tsis siv lub tshuab thev naus laus zis, txhawm rau lav lub sijhawm ntev thiab ruaj khov ua haujlwm ntawm cov khoom siv roj nitrogen, teeb lub tog raj kheej siab ntaus hauv qhov system, thiab tib lub sijhawm nyob rau hauv qhov kev sib zog kaw teeb tsa ob lub ntsiab lus ntawm lub tswb ntsuas, thawj kis ntawm kev saib xyuas lub tswb hloov kho hydroxyls kev mus, lub tswb thib ob hydroxyls yog kev siv cov pa roj carbon molecular sieve.
F, nitrogen ua cov cuab yeej siv Siemens PLC S7-200 tswj qhov system thiab kov lub vijtsam sib xyaw ua ke kev tswj hwm, nrog cov cuab yeej tshuaj xyuas, tswj, kho, tso tawm, ua txhaum lub tswb, pib qhov chaw deb thiab nres thiab lwm yam haujlwm, nrog ntau lub vijtsam tso saib.
