Zvigadzirwa zvePSA nitrogen jenareta
Nekukurumidza kukura kweindasitiri, nitrogen yakashandiswa zvakanyanya muminda yemakemikari, zvemagetsi, simbi, chikafu, michina, nezvimwe. Kudiwa kwenitrogen munyika yangu kuri kuwedzera pamwero unopfuura 8% gore rega rega.Nitrogen haishande mumakemikari, uye inonyura zvakanyanya pasi pemamiriro emazuva ese, uye haisi nyore kuita makemikari nezvimwe zvinhu.Naizvozvo, nitrogen inoshandiswa zvakanyanya sekudzivirira gasi uye kuvhara gasi muindasitiri yesimbi, indasitiri yemagetsi, uye indasitiri yemakemikari.Kazhinji, kuchena kwegasi rinodzivirira ndeye 99.99%, uye mamwe anoda kuchena kwakanyanya kwenitrogen inodarika 99.998%.Liquid nitrogen ndiyo inotonhora inotonhora sosi, uye inonyanya kushandiswa muindasitiri yechikafu, indasitiri yekurapa, uye kuchengetwa kwembeu yekupfuya mhuka.Mukugadzirwa kweammonia muindasitiri yemakemikari fetiraiza, kana gasi remagetsi rekugadzira ammonia — hydrogen nenitrogen yakasanganiswa gasi yakagezwa nekunatswa nemvura yakachena nitrogen, zvirimo mugasi inert zvinogona kunge zvidiki zvakanyanya, uye zviri mukati mesarufa. monoxide uye oksijeni haipfuuri 20 ppm.
Nitrojeni yakachena haigoni kutorwa zvakananga kubva kune zvakasikwa, uye kuparadzana kwemhepo kunonyanya kushandiswa.Nzira dzekuparadzanisa mhepo dzinosanganisira: cryogenic method, pressure swing adsorption method (PSA), membrane separation method.
Nhanganyaya kune maitiro uye zvishandiso zvePSA nitrogen jenareta
Nhanganyaya yekuyerera kwemaitiro
Mhepo inopinda mumhepo compressor mushure mekubvisa guruva uye mechanical tsvina kuburikidza nemhepo sefa, uye inomanikidzwa kune inodiwa kumanikidzwa.Mushure mekuomesera degreasing, dewatering, uye guruva kubvisa kuchenesa marapirwo, yakachena yakamanikidzwa mweya inobuda kuti ive nechokwadi chekushandiswa kwema molecular sieves mu adsorption tower.hupenyu.
Kune maviri adsorption shongwe ane kabhoni molecular sieve.Kana imwe shongwe iri kushanda, imwe shongwe inodzikiswa kuti iparare.Iwo mweya wakachena unopinda mushongwe yekushanda, uye kana ichipfuura nepakati pesefa yemamolekyuli, okisijeni, kabhoni dhaimoni uye mvura zvinoshambadzwa nazvo.Iyo gasi inoyerera ichienda kumagumo ndeye nitrogen uye inoteedzera huwandu hwe argon uye oksijeni.
Imwe shongwe (desorption tower) inopatsanura iyo adsorbed okisijeni, kabhoni dhaibhorosi uye mvura kubva mumapores eiyo molecular sieve uye inoiburitsa mumhepo.Nenzira iyi, shongwe mbiri idzi dzinoitwa kuti dzipedze kupatsanurwa kwenitrogen uye okisijeni uye kuenderera kuburitsa nitrogen.Kuchena kwenitrogen inogadzirwa nepressure swing (_bian4 ya1) adsorption ndeye 95% -99.9%.Kana nitrogen yakakwira ichidikanwa, midziyo yekuchenesa nitrogen inofanira kuwedzerwa.
Iyo 95% -99.9% nitrogen inobuda kubva mukumanikidza swing adsorption nitrogen jenareta inopinda mumidziyo yekuchenesa nitrogen, uye panguva imwe chete iyo yakafanira huwandu hwehydrogen inowedzerwa kuburikidza nekuyerera, uye iyo hydrogen nekutsvaga okisijeni munitrogen inoitwa zvine hungwaru mukati. iyo deoxygenation tower yemidziyo yekuchenesa kubvisa Iyo okisijeni inobva yanyoroveswa nemvura inogadzirisa, iyo inoparadzanisa-mvura inoparadzanisa inoderedzwa, uye yakadzika-yakaomeswa neyakaoma (maviri adsorption dryer shongwe anoshandiswa zvakasiyana: imwe inoshandiswa pakushongedza uye kuomeswa kubvisa mvura, imwe inodziyirwa kuti idesorption uye mvura iwane high-purity nitrogen Kuchena kwenitrogen kunogona kusvika 99.9995%.
Nguva yekutumira: Nov-01-2021