Bayanin samfur
Kayan aikin samar da iskar oxygen na Psa, a ƙarƙashin yanayin zafin ɗaki da matsi na yanayi, yana amfani da sieve na musamman na VPSA don zaɓar shan nitrogen, carbon dioxide da ruwa da sauran ƙazanta a cikin iska, don samun iskar oxygen tare da tsabtar tsarki (93 ± 2%) ).
Samar da iskar oxygen na al'ada gaba ɗaya yana amfani da hanyar rarrabuwa ta cryogenic, wanda zai iya samar da iskar oxygen tare da tsabtar tsarki. Koyaya, kayan aikin suna da babban saka hannun jari, kuma kayan aikin suna aiki ƙarƙashin yanayin matsin lamba da matsanancin zafin jiki. Aikin yana da wahala, yawan kulawa yana da yawa, kuma yawan kuzarin yana da yawa, kuma galibi yana buƙatar wuce sa'o'i da yawa don samar da iskar gas bayan farawa.
Tun lokacin da kayan aikin samar da iskar oxygen na psa suka shiga masana'antu, fasaha ta haɓaka cikin sauri, saboda ƙimar farashin ta fiye da ƙarancin ƙarancin amfanin gona da buƙatun tsarkaka ba su da yawa a cikin yanayin yana da gasa mai ƙarfi, don haka ana amfani da shi sosai a ƙanshin, wadatar da iskar oxygen iskar gas, bleach pulp, murhun gilashi, maganin sharar gida da sauran filayen.
Binciken gida a kan wannan fasaha ya fara tun da farko, amma cikin dogon lokaci ci gaban yana da ɗan jinkiri.
Tun daga shekarun 1990s, sannu a hankali jama'ar Sinawa sun fahimci fa'idar kayan samar da iskar oxygen na psa, kuma a cikin 'yan shekarun nan, an sanya matakai daban -daban na kayan aiki a cikin samarwa.
Psa VPSA kayan samar da iskar oxygen na Hangzhou Boxiang Gas Boats Co., Ltd. yana da babban matsayi a fagen masana'antar taki, kuma tasirin sa yana da ban mamaki sosai.
Ofaya daga cikin manyan hanyoyin ci gaba na psa shine rage adadin adorbent da haɓaka ƙarfin samar da kayan aiki. Koyaya, haɓaka sifofin ƙwayoyin don samar da iskar oxygen koyaushe ana aiwatar da su a cikin babban adadin adadin iskar nitrogen, saboda aikin talla na sieves na kwayoyin shine tushen PSA.
Ya kamata sieve na kwayoyin da ke da inganci ya kasance yana da babban sinadarin nitrogen da rabe -raben iskar oxygen, ƙarfin ɗaukar nauyin jikewa da ƙarfi.
Psa wata babbar hanyar ci gaba ita ce amfani da gajeriyar sake zagayowar, yana buƙatar ba kawai tabbataccen ingancin sieve na kwayoyin ba, a lokaci guda yakamata a dogara da haɓaka hasumiyar hasumiya ta cikin gida, don gujewa abin da zai iya haifar da samfurin ya zama mara kyau da illolin rashin daidaiton rarraba iskar gas a cikin hasumiyar talla, da kuma gabatar da buƙatu mafi girma don canjin malam buɗe ido.
A yawancin hanyoyin samar da iskar oxygen na PSA, PSA, VSA da VPSA gabaɗaya ana iya rarrabe su zuwa nau'ikan uku.
PSA ita ce babban matsin lamba na tallata yanayin gurɓataccen yanayi. Yana da fa'idojin sassauƙa mai sauƙi da ƙarancin buƙatun don sieves na kwayoyin, da kuma rashin amfani da ƙarfin kuzari, wanda yakamata a yi amfani da shi a cikin ƙananan kayan aiki.
VSA, ko tsarin gurɓataccen matsin lamba na sararin samaniya, yana da fa'idar ƙarancin kuzarin kuzari da rashin ƙarancin kayan aiki mai rikitarwa da babban saka hannun jari.
VPSA shine tsarin lalatawar iska ta hanyar matsin yanayi. Yana da fa'idojin ƙarancin kuzarin kuzari da babban ƙarfin sieve na kwayoyin. Jimlar jarin kayan aiki ya yi ƙasa da na tsarin VSA, kuma rashin fa'ida shine babban buƙatu don sieve da bawul.
Hangzhou Boxiang gas yana ɗaukar tsarin VPSA, kuma yana yin babban ci gaba akan tsarin al'ada da aiwatarwa, wanda ba kawai yana rage yawan kuzarin zuwa mafi ƙanƙanta ba (yana nufin amfani da sieve iri ɗaya iri ɗaya), amma kuma yana cimma burin sauƙaƙewa da ƙaramin ƙarfi. na kayan aiki, yana rage saka hannun jari, kuma yana da babban aiki/farashi.
Gabaɗaya tsarin samar da iskar oxygen na psa ya ƙunshi mafi yawan abin hurawa, famfo mai jujjuyawa, bawul ɗin canzawa, mai sha da iskar oxygen mai haɓaka ma'aunin ma'aunin oxygen.
Bayan an cire barbashin ƙura ta hanyar tsotsa tsotsa, ana matsa matattarar iska zuwa 0.3 ~ 0.4 Barg ta Tushen busawa kuma yana shiga ɗayan masu talla.
Adorbent ɗin ya cika a cikin mai talla, wanda ruwa, carbon dioxide, da ƙaramin adadin sauran abubuwan gas ɗin ke haɗewa a mashigar tallan ta alumina mai aiki a ƙasa, sannan alumina da zeolite da aka kunna a saman sieve na kwayoyin 13X.
Oxygen (gami da argon) shine ɓangaren da ba a tallatawa ba kuma ana fitar da shi daga saman kanti na mai talla zuwa tankin ma'aunin oxygen a matsayin samfur.
Lokacin da aka tallata tallan har zuwa wani gwargwado, mai talla zai kai matsayin jikewa. A wannan lokacin, za a yi amfani da matattarar injin don ɓoye mai talla ta hanyar bawul ɗin canzawa (sabanin alƙawarin talla), kuma digirin injin shine 0.45 ~ 0.5BARg.
Ruwan da aka sha, iskar carbon dioxide, nitrogen da ƙaramin adadin sauran abubuwan gas ana fitar da su cikin sararin samaniya kuma mai sakewa yana sake sabuntawa.
Kowane mai talla yana canzawa tsakanin matakai masu zuwa:
- talla
- lalata
- stamping
Matakan tsari guda uku na sama ana sarrafa su ta atomatik ta PLC da canza tsarin bawul.
Ka'idar Aiki
Matakan tsari guda uku na sama ana sarrafa su ta atomatik ta PLC da canza tsarin bawul.
1. Ka'idar rabuwa da iska ta psa don samar da iskar oxygen
Babban abubuwan da ke cikin iska shine nitrogen da oxygen. Sabili da haka, ana iya zaɓar adsorbents tare da zaɓin talla daban -daban don nitrogen da iskar oxygen kuma ana iya tsara tsarin fasaha da ya dace don raba nitrogen da iskar oxygen don samar da iskar oxygen.
Dukansu nitrogen da oxygen suna da lokacin quadrupole, amma lokacin quadrupole na nitrogen (0.31 A) ya fi girma fiye da iskar oxygen (0.10 A), don haka nitrogen yana da Ƙarfin ƙaruwa mai ƙarfi a kan sieves na kwayoyin zeolite fiye da iskar oxygen (nitrogen yana aiwatar da Ƙarfin ƙarfi tare da ions a farfajiya. na zeolite).
Sabili da haka, lokacin da iska ta wuce gadon talla wanda ke ɗauke da adsorbent na zeolite a ƙarƙashin matsin lamba, zaiton yana shayar da nitrogen, kuma iskar oxygen ba ta da yawa, don haka yana wadata a cikin iskar gas kuma yana fita daga cikin gado na talla, yana sanya iskar oxygen da nitrogen daban zuwa samun oxygen.
Lokacin da sinadarin sieve ya ba da iskar nitrogen zuwa kusa da jikewa, an daina iskar kuma an rage matsin gadon talla, za a iya fitar da sinadarin nitrogen da ke cikin sinadarin, kuma za a iya sake amfani da sieve ɗin.
Za'a iya samar da iskar oxygen ta hanyar canzawa tsakanin gadaje biyu ko fiye na talla.
Tafasar argon da iskar oxygen suna kusa da juna, don haka yana da wahala a raba su, kuma ana iya wadatar da su tare a cikin iskar gas.
Sabili da haka, na'urar samar da iskar oxygen psa yawanci tana iya samun haɓakar oxygen 80% ~ 93%, idan aka kwatanta da maida hankali na 99.5% ko fiye da iskar oxygen a cikin na'urar rarrabuwar iska, wanda kuma aka sani da wadatar oxygen.
Dangane da hanyoyin ɓarna daban -daban, za a iya raba samar da oxygen na psa zuwa
Tsarin Biyu
1. Tsarin PSA: tallan matsin lamba (0.2-0.6mpa), lalatawar yanayi.
Kayan aikin sarrafawa na PSA mai sauƙi ne, ƙaramin saka hannun jari, amma ƙarancin iskar oxygen, yawan kuzarin makamashi, ya dace da ƙaramin iskar oxygen (gaba ɗaya <200m3/h).
2. Tsarin VPSA: talla a ƙarƙashin matsin lamba na al'ada ko dan kadan sama da matsin lamba na al'ada (0 ~ 50KPa), haɓakar injin (-50 ~ -80kpa) desorption.
Idan aka kwatanta da tsarin PSA, kayan aikin VPSA yana da rikitarwa, babban saka hannun jari, amma babban inganci, ƙarancin kuzarin makamashi, ya dace da manyan lokutan samar da iskar oxygen.
Don ainihin tsarin rabuwa, dole ne a yi la’akari da sauran abubuwan da aka gano a cikin iska.
Ƙarfin tallan carbon dioxide da ruwa akan talakawa na yau da kullun yafi girma fiye da na nitrogen da oxygen. Za a iya cika masu talla a cikin gado na talla tare da tallan da suka dace (ko amfani da iskar oxygen da ke yin tallan da kansu) don a iya tunawa da cire su.
Takaitaccen fasaha na kayan aikin samar da iskar oxygen na VPSA:
Ø rungumi fasahar zamani, fasahar zamani, ƙarancin amfani da kuzari da farashin aiki na tsarin hasumiyar psa guda biyu;
Ø yin tunani kuma, ta hanyar gwajin tsari cikakken kayan aiki, babban inganci don tabbatar da aminci da kwanciyar hankali na aikin tsarin;
Ø kayan aiki, sassaucin aiki mai dacewa;
Ø sarrafa sarrafa kansa mai sarrafa kansa sosai, gudanarwar tsakiyar ɗakin sarrafawa;
Kyakkyawan security tsarin tsaro, saka idanu na kayan aiki, matakan rigakafin kuskure don ingantawa;
Ø ba tare da gurbata muhalli ba;
Equipment Kayan aikin iskar oxygen don yin bugun ƙarshe na jumhuriyar Jama'ar jama'ar China da matsayin minista na masana'antar kera.
