VPSA Oxygen Generator

Tsanangudzo Pfupi

Psa okisijeni midziyo yekugadzira, pasi pemamiriro ekushisa kwekamuri uye kumanikidzwa kwemhepo, SHANDISA iyo yakakosha VPSA molecular sieve kusarudza kutora nitrogen, carbon dioxide nemvura uye kumwe kusvibiswa mumhepo, kuitira kuti uwane okisijeni nekuchena kwakanyanya (93 ± 2% ).

Kugadzirwa kweokisijeni yechinyakare kazhinji kunotora nzira yekuparadzanisa cryogenic, iyo inogona kuburitsa okisijeni nekuchena kwakanyanya. Nekudaro, iyo michina ine yakakwira mari, uye michina inoshanda pasi pemamiriro ekudzvinyirira kwakanyanya uye yakanyanya-yakaderera tembiricha. Iko kushanda kwakaoma, mwero wekugadzirisa wakakwira, uye simba rekushandisa rakakwira, uye rinowanzoda kupfuura nemaawa akawanda kuti riwanzo gadzira gasi mushure mekutanga.

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Sezvo psa okisijeni zvigadzirwa zvekugadzira zvakapinda muindasitiri, tekinoroji yakagadzira nekukurumidza, nekuti mutengo wayo unoshanda pane yakaderera goho uye zvinodiwa zvekuchena hazvina kukwirira zvakanyanya mumamiriro ezvinhu ane kukwikwidza kwakasimba, saka inoshandiswa zvakanyanya mukunyungudika. blast furnace okisijeni kupfumisa, pulp bleaching, girazi choto, kuchenesa mvura yetsvina uye mimwe minda.

Tsvagiridzo yemumba pane tekinoroji iyi yakatanga kare, asi nekufamba kwenguva budiriro iri kunonoka.

Kubva kuma1990, zvakanakira zvekushandisa okisijeni zvepsa zvakaonekwa zvishoma nezvishoma nevanhu veChinese, uye mumakore achangopfuura, maitiro akasiyana emidziyo akaiswa mukugadzirwa.

Iyo psa VPSA michina yekugadzira okisijeni yeHangzhou Boxiang Gasi Equipment Co., Ltd. ine chinzvimbo chinotungamira mumunda weindasitiri yefetereza, uye mhedzisiro yayo inoshamisa.

Imwe yenzira huru yekusimudzira ye psa ndeyekudzikisa huwandu hwe adsorbent uye nekuvandudza kugona kwekugadzira kwemidziyo. Nekudaro, kuvandudzwa kwema molecular sieves ekugadzirwa kweokisijeni inogara ichiitwa munzira yekukwira nitrogen adsorption, nekuti iyo adsorption kuita kwema molecular sieves ndiyo hwaro hwePSA.

Iyo molecular sieve ine mhando yakanaka inofanirwa kuve yakakwira nitrogen uye oxygen yekuparadzanisa coefficient, saturation adsorption kugona uye yakakwirira simba.

Psa imwe nhungamiro huru yekusimudzira ndeye kushandisa pfupi kutenderera, haidi chete kuvimbiswa mhando yemolecular sieve, panguva imwe chete inofanirwa kuve yakavakirwa pane adsorption tower yemukati chimiro optimization, kuitira kudzivirira izvo zvinogona kuita kuti chigadzirwa chive chakaipa uye kushata kwekusina-uniform kugovera gasi kusungwa mune adsorption tower, uye zvakare kuisa mberi kwepamusoro zvinodiwa kune butterfly valve switch.

Mune akawanda ePSA maitiro ekugadzira okisijeni, PSA, VSA uye VPSA inogona kurongeka mumhando nhatu.

PSA ndiyo yakakurisa kudzvanya adsorption atmospheric desorption process. Iine zvakanakira yeyuniti iri nyore uye yakaderera zvinodiwa zvema molecular sieves, uye zvipingamupinyi zvekushandisa zvakanyanya simba, izvo zvinofanirwa kushandiswa mumidziyo midiki.

VSA, kana kuti atmospheric pressure adsorption vacuum desorption process, ine mukana wekushomeka kwesimba rekushandisa uye kushata kwemidziyo yakaoma kunzwisisa uye yakawanda yekudyara.

VPSA ndiyo maitiro evacuum desorption kuburikidza neatmospheric pressure. Iine zvakanakira kushandiswa kwesimba shoma uye kushanda kwakanyanya kwema molecular sieve. Iyo yakazara mari yemidziyo yakadzikira pane iyo yeVSA maitiro, uye zvibodzwa zvakanyanyisa zvinodiwa zvema molecular sieve uye vharafu.

Hangzhou Boxiang gasi inotora VPSA maitiro, uye inoita budiriro huru pane yechinyakare maitiro uye maitiro, ayo asingangodzikisire kushandiswa kwesimba kusvika kushoma (zvinoreva kushandiswa kweiyo yakafanana brand molecular sieve), asi zvakare inozadzisa chinangwa chekurerutsa uye miniaturization. yemidziyo, inoderedza mari, uye ine chiyero chepamusoro chekuita / mutengo.

Iyo yese psa oxygen yekugadzira sisitimu inonyanya kuumbwa ne blower, vacuum pombi, switching valve, absorber uye oxygen pressure booster unit ye oxygen balance tank.

Mushure mekunge guruva zvidimbu zvabviswa nekusveta sefa, mweya mbishi unomanikidzwa kusvika 0.3 ~ 0.4 Barg neRoots blower uye inopinda mune imwe yeadsorbents.

Iyo adsorbent inozadzwa muiyo adsorbent, umo mvura, kabhoni dhaibhoni, uye diki diki rezvimwe zvikamu zvegasi zvinoshambadzirwa pakupinza kweiyo adsorbent neiyo activated alumina iri pazasi, uye ipapo nitrogen inoshambadzwa neiyo activated alumina uye zeolite. pamusoro pe13X molecular sieve.

Okisijeni (kusanganisira argon) ndiyo isiri-adsorbed chikamu uye inoburitswa kubva kumusoro kweiyo adsorber kune okisijeni balance tank sechigadzirwa.

Kana iyo adsorbent yakashambadzirwa kune imwe nhanho, iyo adsorbent inosvika pakuzara. Panguva ino, vacuum pombi ichashandiswa kupukuta iyo adsorbent kuburikidza neiyo switching valve (kupesana negwaro readsorption), uye iyo vacuum degree iri 0.45 ~ 0.5BARg.

Mvura yakabatwa, carbon dioxide, nitrogen uye zvishoma zvezvimwe zvikamu zvegasi zvinoputirwa kunze mumhepo uye adsorbent inogadzirwazve.
Imwe neimwe adsorber inoshandura pakati pematanho anotevera:
- adsorption
- desorption
- stamping
Aya matatu ari pamusoro apa matanho ekutanga anodzorwa otomatiki nePLC uye switching valve system.

Kushanda Nheyo

Aya matatu ari pamusoro apa matanho ekutanga anodzorwa otomatiki nePLC uye switching valve system.
1. Nheyo ye psa kupatsanurwa kwemhepo kugadzira oxygen
Zvinhu zvikuru zviri mumhepo initrogen uye oxygen. Naizvozvo, adsorbents ane akasiyana adsorption selectivity ye nitrogen uye okisijeni inogona kusarudzwa uye yakakodzera tekinoroji maitiro anogona kugadzirwa kuparadzanisa nitrogen neokisijeni kuti ibudise okisijeni.
Zvose nitrogen neoxygen zvine quadrupole moments, asi nitrogen's quadrupole moment (0.31 A) yakakura kudarika oxygen's (0.10 A), saka nitrogen ine Adsorption yakasimba pazeolite molecular sieves kupfuura oxygen (nitrogen inoita Simba rakasimba rine maion pamusoro pemvura." ye zeolite).
Naizvozvo, kana mhepo inopfuura nepamubhedha we adsorption une zeolite adsorbent pasi pekumanikidzwa, nitrogen inoshambadzwa ne zeolite, uye okisijeni inotorwa zvishoma, saka inopfumiswa muchikamu chegasi uye inoyerera ichibva pamubhedha weiyo adsorption, zvichiita kuti okisijeni nenitrogen zviparadzanise. kuwana oxygen.
Kana iyo molecular sieve inoshambadzira nitrogen kusvika pedyo nekuzara, mhepo inomiswa uye kumanikidzwa kwemubhedha wekushambadza kunoderedzwa, iyo nitrogen inoshambadzirwa ne molecular sieve inogona kubviswa, uye molecular sieve inogona kuvandudzwa uye kushandiswa zvakare.
Oxygen inogona kugadzirwa nguva dzose nekuchinja pakati pemabhedha maviri kana anopfuura adsorption.
Nzvimbo yekubikira ye argon uye oksijeni iri pedyo kune mumwe nemumwe, saka zvakaoma kuvaparadzanisa, uye vanogona kupfumiswa pamwe chete muchikamu chegesi.
Naizvozvo, iyo psa okisijeni yekugadzira mudziyo kazhinji inogona kungowana iyo 80% ~ 93% okisijeni, ichienzaniswa neiyo 99.5% kana yakawanda okisijeni mu cryogenic mhepo yekuparadzanisa mudziyo, inozivikanwawo seyakapfuma oksijeni.
Zvinoenderana neakasiyana nzira dze desorption, psa oxygen kugadzirwa inogona kukamurwa kuita

Maitiro maviri

1. PSA process: pressure adsorption (0.2-0.6mpa), desorption yemhepo.
PSA process equipment iri nyore, mari shoma, asi goho reokisijeni yakaderera, simba guru rekushandisa, rakakodzera kugadzirwa kweokisijeni diki (kazhinji <200m3/h) zviitiko.

2. VPSA maitiro: adsorption pasi pesimba rinowanzoita kana zvishoma kudarika zvakajairika (0 ~ 50KPa), vacuum extraction (-50 ~ -80kpa) desorption.
Kuenzaniswa nePSA maitiro, VPSA maitiro emidziyo yakaoma, yakakwira mari, asi yakanyanya kushanda zvakanaka, yakaderera simba rekushandisa, yakakodzera kune yakakura chiyero kugadzirwa okisijeni.

Kune chaiyo yekuparadzanisa maitiro, zvimwe zvinoteedzera zvikamu mumhepo zvinofanirwa kutariswa.
Iyo adsorption kugona kwecarbon dioxide nemvura pane zvakajairika adsorbents kazhinji yakakura kupfuura iyo yenitrogen neokisijeni. Iwo adsorbents anogona kuzadzwa mumubhedha wekushambadza ane adsorbents akakodzera (kana kushandiswa kweokisijeni kugadzira adsorbents ivo pachavo) kuitira kuti vagone kubatwa uye kubviswa.

General technical Overview yeVPSA okisijeni kugadzira michina:
Ø tora tekinoroji yepamusoro, tekinoroji yakakura, yakaderera simba rekushandisa uye mutengo wekushanda weaviri shongwe process psa oxygen chizvarwa process;
Ø kufunga uye, kuburikidza nekuongororwa kwefomu seti yakakwana yemidziyo, yemhando yepamusoro kuona kuvimbika uye kugadzikana kwekushanda kwehurongwa;
Ø midziyo, nyore kushanda kuchinjika;
Ø yakanyanya automated process control, iyo yepakati manejimendi yepakati control room;
Yakanaka Ø system kuchengetedza, kutarisa kwemidziyo, matanho ekudzivirira kukanganisa kuvandudza;
Ø pasina kusvibiswa kwezvakatipoteredza;
Ø midziyo yeokisijeni kuita kuburitswa kwekupedzisira kwePeople's Republic of China yenyika zviyero uye chiyero chehushumiri cheindasitiri yemakina.

Zvakapfuura: VPSA okisijeni jenareta yekushandiswa kwemaindasitiri

Zvinotevera: Liquid Nitrogen Generator