Kusungidwa kwa khofi wawo wowotcha ndi nkhani yofunika kwambiri kwa owotcha khofi.Valavu yochotsa mpweya ndi chida chofunikira pochita izi.
Valavu yowonongeka, yomwe inali yovomerezeka mu 1960, ndi njira imodzi yomwe imalola nyemba za khofi kutulutsa mpweya wabwino monga carbon dioxide (CO2) popanda kukhudzana ndi mpweya.
Ma valve ochotsa mpweya, omwe amawoneka ngati ma nozzles osavuta apulasitiki, ndi zinthu zoyamikiridwa kwambiri zomwe zimalola khofi wokazinga kuyenda mtunda wautali popanda kuvulazidwa.
Komabe, kuphatikizika kwawo m'mapaketi okhazikika a khofi kungakhale kovuta chifukwa amayenera kuchotsedwa nthawi zambiri asanatayidwe.Chotsatira chake, ena owotcha amatha kugwiritsa ntchito matumba opanda ma valve ochotsa mpweya ngati khofi wawo adzaperekedwa atangowotcha.
Pitirizani kuwerenga kuti mudziwe zambiri za ma valve ochotsa gasi ndi njira zina zomwe zimapezeka kwa owotcha.
Kodi cholinga cha valve yochotsa mpweya ndi chiyani?
Khofi amawonetsa kusintha kwakukulu kwa thupi akawotcha, ndipo kuchuluka kwake kumakwera mpaka 80%.
Kuphatikiza apo, kukazinga kumatulutsa mpweya womwe umapezeka munyemba, pafupifupi 78% yomwe ndi carbon dioxide (CO2).
Kuchotsa mpweya kumachitika panthawi yolongedza, kugaya, ndi kumwa khofi.Kwa makulidwe owoneka bwino, apakati, ndi abwino, mwachitsanzo, 26% ndi 59% ya CO2 mu khofi imatulutsidwa pambuyo pogaya, motsatana.
Ngakhale kupezeka kwa CO2 nthawi zambiri kumawonetsa kutsitsimuka, kumatha kukhala ndi chiyambukiro choyipa pakukoma ndi kununkhira kwa khofi.Mwachitsanzo, khofi yemwe sanapatsidwe nthawi yokwanira kuti degas atulutse thovu panthawi yofulula moŵa, zomwe zimabweretsa kutulutsa kosagwirizana.
Kuchotsa gasi kuyenera kuyang'aniridwa mosamala chifukwa kuchulukitsitsa kungayambitse khofi kukhala yotayirira.Komabe, kusakwanira kwa degassing kumatha kukhudza momwe khofi imachotsera ndikupanga crema.
Owotcha adapeza njira zingapo zowongolera njira yochotsera gasi pakapita nthawi pogwiritsa ntchito kuyesa ndi zolakwika.
Kugwiritsa ntchito zoyikapo zolimba zomwe zimatha kupirira kupsinjika kwa CO2 kudziunjikira kapena kulola khofi kukhala degas musanapake zonse zidagwiritsidwa ntchito ngati mayankho m'mbuyomu.Anayesanso khofi wotsekera vacuum idakali m’chidebe chake.
Komabe, njira iliyonse inali ndi zovuta zake.Mwachitsanzo, zinatenga nthawi yayitali kuti khofiyo ifike ku degas, yomwe inachititsa kuti nyembazo zikhale ndi okosijeni.Kumbali ina, kulongedza zinthu zolimba kunali kokwera mtengo komanso kovuta kusuntha.
Zigawo zambiri zonunkhiritsa za khofi zidachotsedwa panthawi yosindikiza vacuum, zomwe zidasokoneza malingaliro ake.
Valavu yotulutsa mpweya idapangidwa m'zaka za m'ma 1960 ndi kampani yaku Italy ya Goglio, yomwe idasinthiratu.
Valavu yochotsa mpweya ikadali yofanana lero ndipo imakhala ndi mphira wa rabara mkati mwa valavu yopangidwa ndi jekeseni.Kulimbana kwapamtunda motsutsana ndi thupi la valve kumasungidwa ndi madzi osanjikiza mkati mwa valavu.
Madziwo amachoka ndikusuntha diaphragm pamene kusiyana kwa kuthamanga kufika pamtunda.Izi zimapangitsa kuti mpweya utuluke pamene mpweya umalowa mu phukusi.
Degassing mavavu ' drawback
Pali zifukwa zingapo zomwe owotcha amatha kusankha kuti asagwiritse ntchito ma valve ochotsa mpweya, ngakhale asintha momwe khofi amapakidwira.
Zotsatira zoonekeratu ndikuti zimakweza mtengo wonyamula.Owotcha ena alinso ndi nkhawa kuti mavavu amafulumizitsa kutayika kwa aromatics.Iwo anapeza kuti kutseka chikwama popanda valve kungayambitse kudzitukumula ndi kukulitsa koma sikumayambitsa kuphulika.
Chifukwa cha izi, owotcha awa nthawi zambiri amasankha kusindikiza khofi wawo m'malo mwake.
Kusatsimikizika kokhudza ngati ma valve ochotsa mpweya amatha kubwezeretsedwanso ndi vuto lina ndi iwo.
Nthawi zambiri pamakhala chidziwitso chochepa chopezeka pa kulekanitsa koyenera ndi kukonzanso kwa mavavu ochotsa mpweya.Chifukwa cha kusindikiza kosawerengeka kwa malangizo obwezeretsanso ma valve pamapaketi a khofi, gawo lalikulu la kusamvetsetsana uku limasamutsidwa kwa kasitomala.
Ogula akuzindikira kwambiri momwe kugula kwawo kumakhudzira chilengedwe.Zotsatira zake, amatha kusankha mtundu wina wa khofi ngati phukusi lilibe chidziwitso chobwezeretsanso.
Owotcha amatha kusankha mavavu ochotsera gasi m'matumba awo ngati yankho.Izi zitha kuphatikizidwa mwachangu komanso moyenera pakuyika, ndipo zina zimatha kugwiritsa ntchito pulasitiki yochepera 90%.
M'malo mwake, ma valve ena ochotsa mpweya amapangidwa kuchokera ku bioplastics ngati polylactic acid, yomwe ndi yotsika mtengo kwa owotcha komanso okonda zachilengedwe.
Kuyankhulana kwa malangizo otayika a valve, monga momwe angachotsedwere kuti abwezeretsenso, pamapaketi a khofi ndikofunikira mukamagwiritsa ntchito zosankhazi.
Kodi ndikofunikira kuphatikizira ma valve ochotsa mpweya pamapaketi aliwonse a khofi?
Pali zinthu zambiri zomwe zingakhudze kusankha kwa wowotcha kuti agwiritse ntchito valavu yochotsera gasi.Izi zikuphatikizapo mawonekedwe owotcha komanso ngati khofi amagulitsidwa nyemba zonse kapena nthaka.
Zowotcha zakuda, mwachitsanzo, zimakonda kutentha kwambiri kuposa zowotcha zopepuka, pomwe zimakhala ndi kuchuluka kwa gasi.Izi ndichifukwa choti kapangidwe ka nyemba kamakhala kobowola kwambiri chifukwa nthawi zambiri amawotcha.
Owotcha amayenera kuphunzira kaye zomwe ogula amadya.Izi zithandizira kudziwa kukula kwa khofi wopakidwa komanso ma voliyumu ofunikira.
Khofi akagulitsidwa mocheperako, nthawi zambiri alibe nthawi yokwanira kuti abweretse zovuta pakunyamula popanda valavu yotulutsa mpweya.Makasitomala amamwa khofiyo mwachangu kuposa momwe amachitira ndi kuchuluka kwake, monga matumba a 1kg.
Zikatero, owotcha amatha kusankha kugulitsa khofi wocheperako kwa makasitomala.
Pali njira zopewera okosijeni kwa owotcha omwe sagwiritsa ntchito ma valve ochotsa mpweya.Mwachitsanzo, kuwotcha kwa nayitrojeni kumagwiritsidwa ntchito ndi owotcha ena, pomwe ena amaphatikiza ma sachets a oxygen ndi CO2 m'mapaketi awo.
Owotcha amathanso kuwonetsetsa kuti chotsekera chotsekeracho ndi chopanda mpweya momwe zingathere.Mwachitsanzo, kutseka zipi kungakhale kopambana kuposa tayi ya malata kuti mpweya usalowe m'matumba a khofi.
Chimodzi mwa zida zosiyanasiyana zomwe zimapezeka kwa owotcha kuti atsimikizire kuti khofi yawo imaperekedwa kwa makasitomala mumkhalidwe wabwino kwambiri ndi ma valve ochotsa gasi.
Kaya okazinga asankha kugwiritsa ntchito valavu yochotsera mpweya kapena ayi, kugwira ntchito ndi katswiri wazolongedza kungathandize kusunga khofi wa khofi ndikupangitsa ogula kuti abwerenso zambiri.
Mavavu ochotsa mafuta omwe amatha kubwezeretsedwanso komanso opanda BPA akupezeka kuchokera ku Cyan Pak ndipo amatha kubwezeretsedwanso ndi khofi yonseyo.Chipewa, disc zotanuka, viscous layer, mbale ya polyethylene, ndi fyuluta yamapepala ndizo zigawo zofala za mavavuwa.
Sikuti amangothandiza kupanga mankhwala omwe ogula angagwiritse ntchito mosavuta, komanso amachepetsanso zotsatira zovulaza zomwe khofi ya khofi imakhala nayo pa chilengedwe.
Kuti tikupatseni njira zina zosungira khofi wanu watsopano, tikuphatikizanso ma ziplock, ma velcro zipper, malata, ndi ma rip notches.
Makasitomala atha kukhala otsimikiza kuti phukusi lanu ndi lopanda kusokoneza komanso latsopano momwe mungathere pogwiritsa ntchito zida zong'ambika ndi zipi za velcro, zomwe zimapereka chitsimikizo chomveka cha kutseka kolimba.Zikwama zathu zam'munsi zomwe zimakhala zathyathyathya zitha kugwira ntchito bwino kwambiri ndi zomangira malata kuti zisungidwe bwino pakupakira.
Nthawi yotumiza: Apr-20-2023