Ndi chitukuko chofulumira chamakampani opangira ma CD, zopepuka komanso zosavuta kunyamula zida zonyamula zimapangidwa pang'onopang'ono ndipo zimagwiritsidwa ntchito kwambiri. Komabe, magwiridwe antchito a zida zatsopanozi, makamaka zotchinga mpweya wa okosijeni zimatha kukwaniritsa zofunikira pakuyika mankhwala? Izi ndizovuta kwambiri kwa ogula, ogwiritsa ntchito ndi opanga zinthu zonyamula katundu, mabungwe owunikira bwino pamagulu onse. Lero tikambirana mfundo zazikuluzikulu za kuyezetsa mpweya wokwanira wa ma CD a chakudya.
Kuthamanga kwa okosijeni kumayesedwa pokonza phukusi ku chipangizo choyesera ndikufika mofanana m'malo oyesera. Oxygen imagwiritsidwa ntchito ngati gasi woyesera ndi nayitrogeni ngati mpweya wonyamulira kuti apange kusiyana kwina kwa oxygen pakati pa kunja ndi mkati mwa phukusi. Njira zoyezera kuchuluka kwa kuyika kwazakudya ndizosiyana kwambiri ndi njira ya isobaric, yomwe imagwiritsidwa ntchito kwambiri ndi njira yopatsirana. Njira yosiyanitsira kuthamanga imagawidwa m'magulu awiri: njira yosiyanitsira kuthamanga kwa vacuum ndi njira yabwino yosiyanitsira, ndipo njira yopumira ndiyo njira yoyesera yoyimira kwambiri munjira yosiyanitsira mphamvu. Ndilonso njira yolondola kwambiri yoyesera data yoyeserera, yokhala ndi mpweya wambiri woyeserera, monga mpweya, mpweya, mpweya, mpweya woipa ndi mpweya wina kuyesa permeability wa zipangizo ma CD, kukhazikitsa muyezo GB/T1038-2000 filimu pulasitiki filimu ndi pepala mpweya permeability mayeso njira.
Mfundo yoyesera ndikugwiritsa ntchito chitsanzocho kuti mulekanitse chipinda cholowera m'malo awiri osiyana, choyamba chotsani mbali zonse za chitsanzocho, ndiyeno mudzaze mbali imodzi (mbali yothamanga kwambiri) ndi mpweya woyesera wa 0.1MPa (mtheradi wothamanga), pamene mbali inayo (mbali yotsika kwambiri) imakhalabe yopanda kanthu. Izi zimapanga kusiyana kwa mpweya woyezetsa wa 0.1MPa kumbali zonse ziwiri za chitsanzo, ndipo mpweya woyesera umadutsa mufilimuyi kupita ku mbali yotsika kwambiri ndipo imayambitsa kusintha kwa kupanikizika kwapakati.
Chiwerengero chachikulu cha zotsatira zoyesa zimasonyeza kuti mwatsopano mkaka ma CD, ndi ma CD mpweya permeability pakati 200-300, refrigerated alumali moyo wa masiku 10, mpweya permeability pakati pa 100-150, kwa masiku 20, ngati mpweya permeability umalamulidwa m'munsimu 5, ndiye kuti alumali moyo akhoza kufika kuposa 1 mwezi; zophika nyama nyama, osati ayenera kulabadira kuchuluka kwa mpweya permeability zinthu kupewa makutidwe ndi okosijeni ndi kuwonongeka kwa nyama mankhwala. Komanso tcherani khutu ku ntchito yotchinga chinyezi cha zinthuzo. Zakudya zokazinga monga Zakudyazi pompopompo, chakudya chodzitukumula, zonyamula katundu, chotchinga chimodzimodzi ntchito sayenera kunyalanyazidwa, ma CD zakudya zotere makamaka kupewa makutidwe ndi okosijeni mankhwala ndi rancidity, kotero kuti tikwaniritse mpweya, kutchinjiriza mpweya, kuwala, chotchinga mpweya, etc. pansi 3, chinyezi permeability mu zotsatirazi 2; msika ndi wofala kwambiri gasi conditioning ma CD. Osati kokha kulamulira kuchuluka kwa mpweya permeability wa zinthu, palinso zina zofunika permeability wa mpweya woipa.
Nthawi yotumiza: Feb-24-2023