Nkọwa ngwaahịa
Psa oxygen mmepụta akụrụngwa, n'okpuru ọnọdụ nke ụlọ okpomọkụ na ikuku ikuku, na-eji pụrụ iche VPSA molekul sieve na selectively banye nitrogen, carbon dioxide na mmiri na ndị ọzọ adịghị ọcha na ikuku, iji nweta oxygen na elu ịdị ọcha (93 ± 2%). ).
Omenala oxygen mmepụta n'ozuzu na-anabata usoro nkewa cryogenic, nke nwere ike imepụta oxygen na ịdị ọcha dị elu. Otú ọ dị, ngwá ọrụ ahụ nwere nnukwu ego, na ngwá ọrụ na-arụ ọrụ n'okpuru ọnọdụ nke nnukwu nrụgide na ultra-obere okpomọkụ. Ọrụ ahụ siri ike, ọnụ ọgụgụ mmezi ahụ dị elu, na ike oriri dị elu, ọ na-adịkarịkwa mkpa ịgafe ọtụtụ awa iji na-emepụta gas mgbe ọ malitechara.
Ebe ọ bụ na psa oxygen mmepụta ngwá ọrụ na-abanye n'ime mmepụta ihe, nkà na ụzụ na-emepụta ngwa ngwa, n'ihi na ọnụ ahịa ya na-arụ ọrụ karịa na obere mkpụrụ dị ala na ihe ndị dị ọcha chọrọ adịghị oke elu na ọnọdụ ahụ nwere asọmpi siri ike, ya mere a na-eji ya eme ihe na-agbaze. mgbawa ọkụ ọkụ ikuku oxygen, pulp bleaching, iko ọkụ, ọgwụgwọ mmiri mkpofu na ubi ndị ọzọ.
Nnyocha ụlọ na nkà na ụzụ a malitere na mbụ, ma n'ime ogologo oge mmepe ahụ na-adị nwayọọ.
Kemgbe 1990s, ndị China ejirila nwayọọ nwayọọ mata uru nke psa oxygen mmepụta ngwá ọrụ, na n'afọ ndị na-adịbeghị anya, a na-etinye usoro dị iche iche nke ngwá ọrụ.
The psa VPSA oxygen mmepụta akụrụngwa nke Hangzhou Boxiang Gas Equipment Co., Ltd. nwere a na-eduga ọnọdụ na ubi nke fatịlaịza ụlọ ọrụ, na mmetụta ya dị ịrịba ama.
Otu n'ime isi ntụziaka mmepe nke psa bụ iji belata ọnụ ọgụgụ nke adsorbent ma melite ikike mmepụta nke akụrụngwa. Otú ọ dị, a na-emeziwanye mma nke sieves molecular maka mmepụta oxygen mgbe niile n'ụzọ nke ọnụego mgbasa ozi nitrogen dị elu, n'ihi na arụmọrụ adsorption nke sieves molecular bụ ihe ndabere nke PSA.
The molekụla sieve na ezigbo mma kwesịrị inwe nnukwu nitrogen na oxygen nkewa ọnụọgụ, saturation adsorption ikike na elu ike.
Psa ọzọ isi mmepe direction bụ iji obere okirikiri, ọ chọrọ ọ bụghị nanị na-ekwe nkwa àgwà nke molekul sieve, n'otu oge ahụ kwesịrị dabere na adsorption tower esịtidem Ọdịdị njikarịcha, iji zere nke nwere ike ime ka ngwaahịa na-adịghị mma na ndị. ọghọm nke na-abụghị otu nkesa gas ịta n'ụlọ elu adsorption, na-etinyekwa n'ihu elu chọrọ maka nru ububa valvụ mgba ọkụ.
N'ọtụtụ usoro mmepụta oxygen PSA, PSA, VSA na VPSA nwere ike kewaa n'ụdị atọ.
PSA bụ nnukwu usoro mgbasa ozi ikuku ikuku. Ọ nwere uru nke unit dị mfe na ihe dị ala chọrọ maka sieves molecular, na adịghị ike nke oke ike oriri, nke kwesịrị iji na obere ngwá ọrụ.
VSA, ma ọ bụ usoro ikuku mgbasa ozi mgbasa ozi ikuku, nwere uru nke obere ike oriri na mwepu nke ngwa dị mgbagwoju anya yana itinye ego zuru oke.
VPSA bụ usoro nke mwepu oghere site na nrụgide ikuku. Ọ nwere uru nke obere ume ike na nnukwu arụmọrụ nke sieve molecular. Mkpokọta ego nke akụrụngwa dị nnọọ ala karịa nke usoro VSA, na adịghị ike ndị dịtụ elu chọrọ maka molekụla sieve na valvụ.
Hangzhou Boxiang gas na-anabata usoro VPSA, ma na-eme ka ọganihu dị ukwuu na usoro omenala na usoro omenala, nke na-abụghị nanị na-ebelata ike oriri na opekempe (na-ezo aka n'iji otu ụdị sieve molecular), ma na-enweta ihe mgbaru ọsọ nke simplification na miniaturization. nke akụrụngwa, na-ebelata ntinye ego, ma nwee oke arụmọrụ / ọnụahịa dị elu.
Usoro mmepụta oxygen psa dum bụ nke ihe na-eku ume, mgbapụta ikuku, valvụ na-agbanwe, ihe na-ekpuchi ihe na ikuku ikuku oxygen nke tank itule oxygen.
Mgbe ewepụsịrị uzuzu uzuzu site na nzacha mmiri, a na-agbanye ikuku ikuku ka ọ bụrụ 0.3 ~ 0.4 Barg site na mgbọrọgwụ ịfụ ọkụ wee banye n'otu n'ime adsorbents.
Adsorbent na-ejupụta na adsorbent, nke mmiri, carbon dioxide na obere ihe ndị ọzọ gas na-agbanye na ntinye nke adsorbent site na alumina na-arụ ọrụ na ala, mgbe ahụ, a na-etinye nitrogen site na alumina na zeolite na-arụ ọrụ. n'elu nke 13X molecular sieve.
Oxygen (gụnyere argon) bụ ihe na-abụghị nke mgbasa ozi ma na-esi n'elu mpụta nke mgbasa ozi gaa na tank itule oxygen dị ka ngwaahịa.
Mgbe adsorbent na-agbasa ruo n'ókè ụfọdụ, adsorbent ga-erute ọnọdụ saturation. N'oge a, a ga-eji mgbapụta na-ekpo ọkụ na-ekpochapụ adsorbent site na valvụ na-agbanwe (na-emegide ntụziaka nke mgbasa ozi), na ogo ogo bụ 0.45 ~ 0.5BARg.
Mmiri a na-etinye n'ime ya, carbon dioxide, nitrogen na obere ihe gas ndị ọzọ na-agbanye n'ime ikuku ma na-emegharị ihe adsorbent.
Onye ọ bụla adsorber na-agbanwe n'etiti usoro ndị a:
- adsorption
- desorption
- stampụ
Usoro usoro atọ ndị dị n'elu PLC na-achịkwa na-akpaghị aka na usoro valvụ na-agbanwe.
Ụkpụrụ ọrụ
Usoro usoro atọ ndị dị n'elu PLC na-achịkwa na-akpaghị aka na usoro valvụ na-agbanwe.
1. Ụkpụrụ nke psa ikuku nkewa iji mepụta oxygen
Isi ihe dị na ikuku bụ nitrogen na oxygen. Ya mere, a pụrụ ịhọrọ adsorbents dị iche iche adsorption selectivity maka nitrogen na oxygen na usoro nkà na ụzụ kwesịrị ekwesị nwere ike ịmepụta iji kewaa nitrogen na oxygen iji mepụta oxygen.
Ma nitrogen na oxygen nwere oge quadrupole, ma oge anọ nke nitrogen (0.31 A) dị ukwuu karịa oxygen (0.10 A), ya mere nitrogen nwere ikike mgbasa ozi siri ike na sieves molecular zeolite karịa oxygen (nitrogen na-arụ ọrụ ike na ion n'elu). nke zeolite).
Ya mere, mgbe ikuku gafere site na adsorption bed nwere zeolite adsorbent n'okpuru nrụgide, nitrogen na-adsorbed site zeolite, na oxygen adịghị etinye obi gị dum, n'ihi ya, ọ bara ọgaranya na gas na-adọ na-asọpụta site na adsorption bed, na-eme ka oxygen na nitrogen dị iche iche. nweta oxygen.
Mgbe sieve molekụla na-eme ka nitrogen dị nso na saturation, ikuku na-akwụsị, nrụgide nke bed adsorption na-ebelata, nitrogen nke sieve molecular na-agbaze nwere ike ịpụpụ, na sieve molecular nwere ike ịmaliteghachi ma jiri ya mee ihe ọzọ.
Enwere ike imepụta oxygen mgbe niile site n'ịgbanwe n'etiti akwa abụọ ma ọ bụ karịa.
Ebe na-esi ísì ụtọ nke argon na oxygen dị nso na ibe ha, n'ihi ya, ọ na-esiri ike ikewapụ ha, a pụkwara ime ka ha baa ọgaranya ọnụ na oge gas.
Ya mere, ngwaọrụ mmepụta oxygen psa na-enwekarị ike ịnweta ntinye nke 80% ~ 93% oxygen, ma e jiri ya tụnyere 99.5% ma ọ bụ karịa oxygen na ngwaọrụ nkewa ikuku cryogenic, nke a makwaara dị ka ikuku oxygen.
Dị ka ụzọ dị iche iche desorption si dị, psa oxygen mmepụta nwere ike kewaa
Usoro abụọ
1. Usoro PSA: mgbasa ozi nrụgide (0.2-0.6mpa), desorption ikuku.
Ngwa usoro PSA dị mfe, obere ntinye ego, mana mkpụrụ oxygen dị ala, oriri ike dị elu, dabara maka obere mmepụta oxygen (n'ozuzu <200m3 / h) oge.
2. Usoro VPSA: adsorption n'okpuru nrụgide nkịtị ma ọ bụ dị elu karịa nrụgide nkịtị (0 ~ 50KPa), mmịpụta agụụ (-50 ~ -80kpa) desorption.
Tụnyere usoro PSA, akụrụngwa usoro VPSA dị mgbagwoju anya, itinye ego dị elu, mana arụmọrụ dị elu, oriri ike dị ala, dabara maka oge mmepụta oxygen buru ibu.
Maka usoro nkewa n'ezie, a ghaghị ịtụle ihe ndị ọzọ na-achọpụta ihe na ikuku.
Ike mgbasa ozi nke carbon dioxide na mmiri na ihe ndị na-emepụta ihe na-adịkarị ukwuu karịa nke nitrogen na oxygen. Enwere ike jupụta ihe ndị na-emepụta ihe na akwa akwa akwa na ihe nkwụnye kwesịrị ekwesị (ma ọ bụ iji oxygen na-eme ihe na-eme onwe ha) ka ha wee nwee ike ịmịnye ma wepụ ya.
Nchịkọta teknụzụ zuru oke nke akụrụngwa mmepụta oxygen VPSA:
Ø nweta teknụzụ dị elu, teknụzụ tozuru oke, oriri ike dị ala na ụgwọ ọrụ nke usoro ụlọ elu abụọ psa usoro ọgbọ oxygen;
Ø echiche na, site na nyocha nke ụdị ngwá ọrụ zuru oke, dị elu iji hụ na a pụrụ ịdabere na ya na nkwụsi ike nke ọrụ usoro;
Ø akụrụngwa, mgbanwe ọrụ dị mma;
Ø usoro nchịkwa nke ukwuu na-akpaghị aka, njikwa etiti nke ụlọ nchịkwa etiti;
Ezi Ø nchekwa usoro, nlekota akụrụngwa, ihe mgbochi mgbochi iji melite;
Ø enweghị mmetọ gburugburu ebe obibi;
Ø akụrụngwa oxygen iji rụọ akwụkwọ ikpeazụ nke ụkpụrụ mba ndị mmadụ Republic of China na ọkọlọtọ minista nke ụlọ ọrụ igwe.
