Nitrogen tshuab manufacturing execution standard
1. Cua Division Nitrogen System ntawm Ministry of Electronics Industry: JB6427/92 Standard
2. Kev tswj hluav taws xob thaiv, kev teeb tsa: GB5226-96 Kev siv xim xim yog ua raws li JB2536-80
Siab Swing Adsorption. PSA luv luv, yog ib tug tshiab gas adsorption sib cais tshuab, nws muaj cov nram qab no zoo: ⑴ khoom purity siab. Feem ntau tuaj yeem ua haujlwm ntawm chav tsev kub thiab tsis tshua muaj siab, lub txaj rov ua dua yam tsis muaj cua sov, kev txuag hluav taws xob. ⑶ Cov cuab yeej siv tau yooj yim, yooj yim rau kev khiav lag luam thiab tswj. Kev ua haujlwm tsis tu ncua tuaj yeem ua tiav. Yog li ntawd, thaum lub tshuab tshiab no tawm los, nws muaj kev txhawj xeeb los ntawm kev lag luam ntawm ntau lub teb chaws, kev sib tw los tsim thiab kev tshawb fawb, kev loj hlob sai, thiab kev loj hlob tuaj.
(Keeb kwm ntawm psa nitrogen ntau lawm)
Xyoo 1960, Skarstrom tau thov PSA patent. Nws siv 5A zeolite molecular sieve ua adsorbent thiab siv ob lub txaj PSA cov cuab yeej cais cov pa nplua nuj ntawm huab cua. Cov txheej txheem tau txhim kho thiab muab tso rau hauv kev tsim khoom hauv xyoo 1960s. Nyob rau xyoo 1980, kev siv tshuab psa tau ua tiav, feem ntau yog siv rau hauv oxygen thiab nitrogen sib cais, huab cua kom qhuav thiab purification, hydrogen purification thiab lwm yam. Ntawm lawv, kev kawm txuj ci ntawm oxygen thiab nitrogen sib cais yog kev sib xyaw ua ke ntawm cov pa roj carbon molecular sieve tshiab thiab siab viav vias adsorption kom cais O2 thiab N2 hauv huab cua, thiaj li tau txais nitrogen.
Nrog rau kev txhim kho ntawm kev ua tau zoo thiab zoo ntawm molecular sieve, nrog rau kev txhim kho txuas ntxiv ntawm cov txheej txheem siab viav vias adsorption, purity thiab rov qab tus nqi ntawm cov khoom txuas ntxiv txhim kho, uas ua rau lub siab viav vias adsorption nyob rau hauv realization ntawm economic puag thiab industrialization.
Txij li thaum qhia txog PSA thev naus laus zis los ntawm Dalian Chemical Research Institute, Hangzhou Boxiang Gas Company tau cog lus rau kev tshawb fawb, kev tsim kho tshiab thiab kev loj hlob ntawm PSA thev naus laus zis, thiab thawj zaug ua cov thev naus laus zis industrialization hauv Suav teb. Hangzhou Boxiang tuam txhab nyob rau hauv ntau xyoo ntawm cov cuab yeej
Hauv cov txheej txheem ntawm kev tsim khoom thiab kev lag luam, ntau tshaj 1000 cov khoom siv tau muab tso rau hauv kev lag luam hauv ntau lub lag luam hauv Suav teb.
Cov nitrogen los ntawm cov khoom siv nitrogen nkag mus rau hauv cg-6 nitrogen buffer tank thiab yog lim los ntawm bxf-16 plua plav lim kom tau cov nitrogen huv nrog purity ntawm 98% thiab tawm los ntawm 900Nm3 / h. Cov zis siab yog ≥ 0.5mpa (kho tau), qhov taw qhia atmospheric dew point yog ≤-40 ℃, cov roj cov ntsiab lus yog ≤0.001 PPM, thiab cov hmoov av yog ≤0.01μm. Thaum kawg, cov nitrogen tiav lawm nkag mus rau hauv lub tank cia nitrogen (tsim raws li tus neeg siv yuav tsum tau) thiab raug thauj mus rau tus neeg siv cov pa roj.
Kev piav qhia ntawm kev tswj tsis siv neeg cov yam ntxwv ntawm PSA nitrogen ua tshuab
A. Nitrogen ua tshuab txais PLC S7-200 (programmable logic controller) los ntawm SIEMENS, Lub teb chaws Yelemees. Chav tsev muaj kev tswj tau zoo thiab tuaj yeem tso saib ntau yam kev khiav haujlwm, xwm txheej thiab teeb meem txhaum cai ntawm cov khoom siv.
B. Nitrogen purity raug kuaj pom online hauv lub sijhawm. Thaum cov nitrogen purity uas tsim los ntawm cov khoom siv nitrogen qis dua qhov ntsuas qhov ntsuas (qhov ntsuas nitrogen purity xav tau los ntawm tus neeg siv khoom), lub kaw lus yuav ceeb toom thiab khoob cia. Tom qab cov cuab yeej tau pib, lub solenoid valve yuav cia li qhib lub qhov cua nitrogen thiab kaw lub qhov hluav taws xob nitrogen tom qab tau txais cov teeb liab tswj los ntawm lub tshuab ntsuas nitrogen. Cov tsis tsim nyog nitrogen yuav cia li tso pa. Thaum lub purity nitrogen ncav cuag lub hom phiaj, lub tso pa valve tau kaw thiab lub qhov hluav taws xob nitrogen qhib kom tso tawm cov khoom tsim nyog nitrogen. Nyob rau 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 yog nruab nrog lub tshuab nqus tsev tsis siv neeg, ntawm lub tshuab ntsuas nitrogen tuaj yeem tsim cov nitrogen purity zoo tso cai qis qis, thaum lub nitrogen purity qis dua li qhov teeb tsa tus nqi qis dua lub suab thiab lub tswb nrov, thiab cia li qhib lub tso pa tawm cia tsis tsim nyog nitrogen tshuab-down, thaum rov qab mus rau ib txwm purity, khoob valve cia li kaw, nitrogen gas los ntawm ib txwm lub qhov hluav taws xob cov yeeb nkab tso zis.
D, pneumatic valve nrog valve hloov phau ntawv qhia pas nrig, intuitive, yog lub guarantee ntawm txhim khu kev qha lag luam ntawm nitrogen ntau lawm khoom.
E, cov txiv maj phaub lev lub tog raj kheej tsis siv neeg compression tshuab, txhawm rau lav qhov kev ua haujlwm ntev thiab ruaj khov ntawm cov khoom siv roj nitrogen, teeb tsa lub tog raj kheej siab hauv lub cev, thiab tib lub sijhawm hauv cov txheej txheem compression teeb tsa ob lub ntsiab lus ntawm lub tswb ntaus ntawv, thawj taw tes ntawm kev saib xyuas lub tswb adjustable hydroxyl mus txawv tebchaws, lub thib ob hydroxyl tswb yog kev noj ntawm standby carbon molecular sieve.
F, nitrogen ua cov cuab yeej siv Siemens PLC S7-200 tswj qhov system thiab kov npo kev tswj hwm kev tswj hwm, nrog cov cuab yeej saib xyuas, kev tswj hwm, kho, tso tawm, lub tswb txhaum, chaw taws teeb pib thiab nres thiab lwm yam haujlwm, nrog ntau lub vijtsam zaub muaj nuj nqi.
