Ivalve yendlela enye yokutshintshiselana ngegesi, eyasungulwa ngeminyaka yoo-1960, yatshintsha ngokupheleleyo ukupakishwa kwekofu.
Ngaphambi kokudalwa kwayo, kwakunzima kakhulu ukugcina ikofu kwipakethe ethambileyo, engenamoya.Iivalve ezikhupha amanzi ngenxa yoko ziye zafumana iwonga leqhawe elingachazwanga kwindawo yokupakisha ikofu.
Iivalve ezikhupha amanzi zenze ukuba abantu abarokhayo bakwazi ukuthwala iimpahla zabo kude kunangaphambili ngelixa zikwanceda abathengi ekugcineni ikofu yabo intsha ixesha elide.
Ii-roasters ezininzi ezikhethekileyo ziye zadibanisa i-coffee bag designs ukubandakanya ukupakishwa kwekofu eguquguqukayo kunye nevalve edibeneyo yokukhupha i-degassing, kwaye ibe yinto eqhelekileyo.
Sele uyithethile loo nto, ngaba iivalvu zokukhupha umoya kufuneka zifakwe phezulu kwipakethe yekofu ukuze zisetyenziswe?
Zisebenza njani iivalvu zokukhupha umoya zeengxowa zekofu?
Iivalvu zokukhupha umoya zisebenza njengendlela enye evumela iigesi ukuba zishiye iindawo zazo zokuhlala zangaphambili.
Iigesi ezivela kwiimpahla ezipakishiweyo zifuna indlela yokubalekela kwindawo evaliweyo ngaphandle kokonakalisa ingqibelelo yengxowa.
Amagama athi "out-gassing" kunye "no-off-gassing" asetyenziswa rhoqo ngokutshintshana kunye nenkqubo yokukhupha i-degassing kwishishini lekofu.
I-Degassing yinkqubo apho iimbotyi zekofu ezigcadiweyo zikhupha ikharbon diokside ebikade ifunxekile.
Nangona kunjalo, kukho umahluko omkhulu phakathi kokukhupha igesi kunye nokususa igesi kwisigama esisebenzayo sekhemistri, ngakumbi i-geochemistry.
I-Out-gassing ligama elisetyenziselwa ukuchaza ukugxothwa ngokuzenzekelayo kunye nendalo yegesi kwindawo yazo yangaphambili eqinileyo okanye engamanzi kwindawo yokutshintsha kukarhulumente.
Ngelixa i-degassing iya kubonisa ukubandakanyeka komntu ekuhlukaneni kweegesi ezikhutshwayo, oku akusoloko kunjalo.
Iivalvu ezikhupha igesi ephuma ngaphandle kunye neevalvu zokukhupha umoya zihlala zinoyilo olufanayo, zandisa lo mahluko wesemantic yesigama kwipakethe yekofu.
Oku kwenzelwa ukuba utshintshiselwano lwegesi lwenzeke xa ingxowa yekofu icinezelwe ukukhuthaza utshintshiselwano lwegesi okanye ngokwemvelo yenzeka ngokusingqongileyo kwangaphandle.
I-cap, i-elastic disc, i-viscous layer, ipleyiti ye-polyethylene, kunye nesihluzo sephepha zizinto eziqhelekileyo zeevalve zokukhupha amanzi.
Ivalve ine-diaphragm yerabha ene-viscous layer yolwelo lwe-sealant ngaphakathi, okanye ijonge kwikofu, kwicala le-diaphragm.Oku kugcina ukutsalwa komphezulu kwivalve kungaguquki.
Ikofu ikhupha i-CO2 njengoko itshabalalisa, inyusa uxinzelelo.Ulwelo luya kutyhala i-diaphragm ngaphandle kwendawo xa uxinzelelo olungaphakathi kwebhegi yekofu egcadiweyo lugqithise ukuxinezeleka komphezulu, ukuvumela ukuba i-CO2 eyongezelelweyo ibaleke.
Ngaba iivalvu zokukhupha umoya ziyafuneka xa kupakishwa ikofu?
Iivalvu zokukhupha amanzi yinxalenye ebalulekileyo yeengxowa zekofu ezinoyilo oluhle.
Iigesi kusenokwenzeka ukuba ziqokelelane kwindawo ecinezelekileyo ukuba azifakwanga kwipakethe elungiselelwe ikofu esanda kugcadiswa.
Ngaphezu koko, ukupakishwa kunokukrazula okanye kuphazamise ingqibelelo yesikhwama sekhofi kuxhomekeke kuhlobo kunye neempawu zezixhobo.
Iicarbohydrate ezintsonkothileyo ziqhekezwe zibe ziimolekyuli ezincinci, ezilula ngakumbi ngexesha lokugaywa kwekofu eluhlaza, kwaye zombini amanzi kunye necarbon dioxide zidaliwe.
Enyanisweni, ukukhutshwa ngokukhawuleza kwezinye zezi gesi kunye nokufuma kuko okubangela i-"crack yokuqala" eyaziwayo esetyenziswa ngabantu abaninzi abarosayo ukulawula nokulawula iimpawu zabo zokuqhotsa.
Nangona kunjalo, emva kokuqhekeka kokuqala, iigesi ziyaqhubeka zivela kwaye azichithi ngokupheleleyo kude kube ziintsuku ezimbalwa emva kokugcadwa.Le gesi ifuna indawo yokuya njengoko ikhutshwa ngokuqhubekayo kwiimbotyi zekofu ezigcadiweyo.
Ikofu esandula kugcadwa ayinakwamkeleka kwibhegi yekofu etywiniweyo ngaphandle kwevalve yokuphunyuka kwegesi efanelekileyo.
Xa ikofu igutyungelwe kwaye ithontsi lokuqala lamanzi ligalelwa embizeni ukwenzela ukugalelwa, enye i<em>carbon dioxide eyenziwe ngexesha lokugcadiswa iya kuhlala ikhona kwiimbotyi kwaye iya kugxothwa.
Olu tyatyambo lubonwa xa kuthululwa utywala, luhlala luphawu oluthembekileyo lwendlela esanda kugcadwa ngayo ikofu.
Ngokufana neengxowa zekhofi, inani elincinci le-carbon dioxide kwi-headpace linokunceda ekwandiseni ubomi beshelufu ngokuthintela i-oksijini enobungozi emoyeni ojikelezayo.Nangona kunjalo, ukwakhiwa kwerhasi egqithisileyo kunokubangela ukugqabhuka kwepakethe.
Kubalulekile ukuba abo baqhotsayo bathathele ingqalelo ukuba iivalvu ezisetyenziswa kwipakethe yekofu ziya kuhlala ixesha elingakanani.Iinketho zokulahlwa kokuphela kobomi xa umsebenzisi egqibile ukusebenzisa imveliso zinokuchatshazelwa kukwahluka kwezinto.
Kuya kuba sengqiqweni ukuba iivalvu zifane ukuba, ngokomzekelo, iibhegi zekofu zeroaster zenziwe ukuba zikwazi ukubola kwimizi-mveliso.
Enye indlela kukusebenzisa ivalve yokukhupha umoya enokuphinda isetyenziswe.Kubalulekile ukuqaphela ukuba ngolu khetho, abasebenzisi baya kufuneka basuse iivalve ekupakisheni kwaye bazilahle ngokwahlukeneyo.
Ukuba izinto zokupakisha zinokulahlwa ngeyona ndlela incinci yomzamo wabathengi kwaye, ngokufanelekileyo, njengeyunithi enye, zihlala zinawona mandla okugcinakala e-cradle-to-grave.
Kukho iindlela ezininzi zokukhetha iivalvu zokususa igassing ngokusingqongileyo.Iivalvu ezikwazi ukuphinda zisetyenziswe ukutshabalalisa igesi zibonelela ngeempawu ezifanayo njengeeplastiki ngaphandle kweziphumo ezibi kokusingqongileyo njengoko zenziwe kusetyenziswa iiplastics ezibunjwe ngenaliti ephuma kwimithombo ehlaziyekayo, efana nezityalo.
Ukuqinisekisa ukuba ukupakishwa kuyafika kwindawo efanelekileyo, abaqhotsi kufuneka bakhumbule ukukhumbuza abathengi indlela yokulahla iibhegi zekofu ezilahliweyo.
Apho kufuneka kubekwe iivalvu zokukhupha igesi kwindawo yokupakisha ikofu?
Nokuba zizingxobo zokuma okanye iingxowa ezigutyungelwe ecaleni, ukupakishwa okuguquguqukayo kuye kwavela njengokhetho olukhethwa yimarike lokupakisha ikofu.
Iivalvu ze-degassing ngokucacileyo zibalulekile ukugcina ingqibelelo yephakheji yeembotyi zekofu ezisanda kugcadiswa njengoko zisenza njalo.
Indawo echanekileyo yeevalvu, nangona kunjalo, kufuneka ithathelwe ingqalelo.
Ii-roasters zisenokukhetha ukufaka iivalvu ngokungaqondakaliyo okanye kwindawo ehambelana nenkangeleko yophawu lwazo, ngokwezinto ezizithandayo zobuhle.
Nangona ukubekwa kwevalve kunokutshintshwa, ngaba onke amabala adalwe alinganayo?
Ivalve yokukhupha igesi kufuneka ibe kwindawo yentloko yesingxobo ukuze isebenze kakuhle kuba apha kulapho uninzi lweegesi ezikhutshiweyo ziya kuqokelela khona.
Ukuvakala kolwakhiwo lweengxowa zekofu kufuneka kwakhona kuthathelwe ingqalelo.Indawo esembindini ilungile njengoko ukubeka ivalve kufutshane kakhulu kumthungo kunokwenza buthathaka ukupakishwa.
Nangona kunjalo, kukho ukuguquguquka ngokubhekiselele apho i-roasters inokubeka khona ivalve ye-degassing, ngokukodwa kumgca ophakathi, kufuphi nomphezulu wokupakisha.
Nangona amacandelo okupakisha asebenzayo aqondwa ukuba anenjongo ethile ngabathengi banamhlanje abachaphazelekayo ngokusingqongileyo, uyilo lwengxowa lusadlala indima ebalulekileyo ekuthengeni izigqibo.
Nangona kunokuba nzima, iivalve zokukhupha amanzi akufanele zingahoywa xa kuyilwa umzobo weengxowa zekofu.
E-Cyan Pak, sinika abaqhotyozi ukhetho phakathi kweevalufa zendlela enye yokukhupha amanzi kunye ne-100% enokuphinda isetyenziswe, i-BPA-free degassing valves kwiingxowa zabo zekofu.
Iivalvu zethu ziyaguquguquka, zikhaphukhaphu, kwaye zinexabiso elifanelekileyo, kwaye zinokusetyenziswa kunye naluphi na ukhetho lwethu lokupakisha ikofu oluhambelana nokusingqongileyo.
Ii-roasters zinokukhetha kwizinto ezahlukeneyo ezinokuphinda zisetyenziswe ezinciphisa inkunkuma kwaye zixhase uqoqosho olujikelezayo, kubandakanywa nephepha le-kraft, iphepha lerayisi, kunye ne-multilayer LDPE ukupakishwa kunye ne-eco-friendly PLA yangaphakathi.
Ukongeza, kuba sisebenzisa itekhnoloji yokuprinta yedijithali, umgca wethu wonke wokupakishwa kwekofu unokwenziwa ngokwezifiso ngokupheleleyo.Oku kusenza sikwazi ukukunika ixesha lokutshintsha ngokukhawuleza kweeyure ze-40 kunye neeyure ze-24 zexesha lokuthumela.
Ixesha lokuposa: Jul-30-2023