Ukulondolozwa kokusha kwekhofi labo eligazingiwe kuyindaba ebalulekile kwabagazingi bekhofi.I-valve yokukhipha umoya iyithuluzi elibalulekile ekwenzeni lokhu.
I-valve yokukhipha umoya, eyayinelungelo lobunikazi ngo-1960, iyindlela eyodwa evumela ubhontshisi wekhofi ukukhulula ngobumnene amagesi afana ne-carbon dioxide (CO2) ngaphandle kokuhlangana nomoya-mpilo.
Ama-valve akhipha umoya, abonakala njengamabhomu epulasitiki alula, ayimpahla ehlonishwa kakhulu evumela ikhofi eligazingiwe ukuthi lihambe amabanga amade ngaphandle kokulinyazwa.
Kodwa-ke, ukufakwa kwazo emaphaketheni ekhofi esimeme kungase kube nzima ngoba kufanele zikhishwe njalo ngaphambi kokulahlwa.Ngenxa yalokho, abanye abathosi bangase basebenzise izikhwama ezingenawo amavalvu okukhipha umoya uma ikhofi labo lizonikezwa ngokushesha ngemva kokugazinga.
Qhubeka nokufunda ukuze ufunde kabanzi mayelana nama-valve asusa umoya nezinye izindlela ezifinyeleleka kuma-roasters.
Iyini inhloso ye-valve yokukhipha umoya?
Ikhofi libonisa izinguquko ezinkulu emzimbeni lapho losiwe, futhi umthamo walo ukhuphuka ngo-80%.
Ngaphezu kwalokho, ukugazinga kukhipha amagesi agcinwe kubhontshisi, cishe u-78% wawo okuyi-carbon dioxide (CO2).
I-Degassing kwenzeka ngesikhathi sokupakishwa, ukugaya, nokuphuza ikhofi.Osayizi abamahhadla, abaphakathi nendawo nabacolekile, isibonelo, u-26% no-59% we-CO2 ekhofini ukhishwa ngemva kokugaya, ngokulandelana.
Nakuba ukuba khona kwe-CO2 ngokuvamile kuwuphawu lokusha, kungaba nomthelela omubi kukunambitheka nephunga lekhofi.Isibonelo, ikhofi elinganikezwanga isikhathi esanele se-degas lingase likhiqize amabhamuza ngesikhathi sokuphiswa, okuholela ekukhishweni okungaguquki.
Ukukhipha umoya kumele kulawulwe ngokucophelela ngoba okuningi kungase kubangele ukuthi ikhofi liphelelwe yisikhathi.Kodwa-ke, ukukhipha umoya okwanele kungathinta indlela ikhofi elikhipha ngayo futhi lenze i-crema.
Ama-roasters bathole amasu amaningana okulawula inqubo yokukhipha umoya ngokuhamba kwesikhathi ngokuzama nangephutha.
Ukusetshenziswa kokupakishwa okuqinile okungamelana nokucindezela kokunqwabelana kwe-CO2 noma ukuvumela ikhofi ukuthi liphele ngaphambi kokupakisha kokubili kusetshenziswe njengezixazululo esikhathini esidlule.Baphinde bavivinya ikhofi elivala ivacuum lisakwi-container yalo.
Nokho, indlela ngayinye yayinemibi.Isibonelo, kuthathe isikhathi eside kakhulu ukuthi ikhofi libe yi-degas, eveze ubhontshisi ku-oxidation.Ngakolunye uhlangothi, ukupakisha okuqinile kwakubiza futhi kunzima ukunyakaza.
Izingxenye eziningi zephunga eziguquguqukayo zekhofi zikhishiwe ngesikhathi sokuvalwa kwe-vacuum, okube nomthelela omubi kuzimfanelo zalo zezinzwa.
I-valve yokukhipha umoya yasungulwa ngeminyaka yawo-1960 yinkampani yase-Italy yokupakisha i-Goglio, okwashintsha ngayo.
I-valve yokukhipha umoya isafana nanamuhla futhi iqukethe i-diaphragm yerabha ngaphakathi kwevalve ebunjwe ngomjovo.Ukungezwani okungaphezulu komzimba we-valve kugcinwa ungqimba oluwuketshezi ongqimbeni lwangaphakathi lwevalvu.
Uketshezi luyashelela futhi lunyakazise i-diaphragm lapho umehluko wengcindezi ufinyelela ukushuba kwendawo.Lokhu kwenza kube lula ukuthi igesi ibaleke ngenkathi kugcinwa umoya-mpilo ngaphandle kwephakeji.
Imiphumela yokusesha i 'degassing valves'
Kunezizathu eziningana zokuthi kungani abathosi benganquma ngokumelene nokusebenzisa amavalvu asusa umoya, naphezu kweqiniso lokuthi baye bashintsha indlela ikhofi elipakishwa ngayo.
Umphumela osobala kakhulu ukuthi uphakamisa intengo yokupakisha.Amanye ama-roasters nawo akhathazekile ngokuthi ama-valve asheshisa ukulahlekelwa ama-aromatics.Bathole ukuthi ukuvala isikhwama ngaphandle kwe-valve kungase kubangele ukuthi sikhukhumale futhi sinwebe kodwa akubangeli ukuthi siqhume.
Ngenxa yalokhu, laba bashisi bavame ukunquma ukuvala ikhofi labo nge-vacuum.
Ukungaqiniseki mayelana nokuthi ama-valve akhipha umoya angaphinde asetshenziswe yini enye inkinga ngawo.
Kuvamise ukuba nolwazi oluncane olutholakalayo mayelana nokuhlukaniswa okufanele kanye nokugaywa kabusha kwama-valve akhipha umoya.Ngenxa yokungaphrintwa njalo kweziyalezo zokugaywa kabusha kwama-valve emaphaketheni ekhofi, ingxenye enkulu yalokhu kungaqondi kahle idluliselwa ekhasimendeni.
Abathengi baqaphela kakhulu ukuthi ukuthenga kwabo kuyithinta kanjani imvelo.Njengomphumela, bangakhetha uhlobo oluhlukile lwekhofi uma iphakheji ingenalo ulwazi lokugaywa kabusha.
Ama-roasters angase akhethe ama-valve okukhipha umoya asebenziseka kabusha kumasaka abo ekhofi njengesixazululo.Lezi zingafakwa ngokushesha nangempumelelo emaphaketheni, futhi ezinye zazo zingasebenzisa ipulasitiki engaphansi ngo-90%.
Njengenye indlela, amavalvu athile akhipha umoya akhiwa ngama-bioplastics afana ne-polylactic acid, athengekayo kuma-roasters futhi angavumelani nemvelo.
Ukuxhumana kweziqondiso zokulahlwa kwe-valve, njengokuthi ingasuswa kanjani ukuze igaywe kabusha, emaphaketheni ekhofi kubalulekile uma kusetshenziswa lezi zinqumo.
Ingabe kuyadingeka ukufaka ama-valve e-degassing kuwo wonke amaphakheji ekhofi?
Izinto eziningi zingase zibe nomthelela ekukhetheni komshisi ukusebenzisa ivalve yokukhipha umoya.Lokhu kuhlanganisa izici ezigazingiwe nokuthi ikhofi lithengiswa yini ubhontshisi ophelele noma umhlabathi.
Amarosti amnyama, ngokwesibonelo, avame ukukhipha igesi ngokushesha kunamarosti alula, kuyilapho enegesi enqwabelanayo.Lokhu kungenxa yokuthi ukwakheka kukabhontshisi kuba nezimbotshana eziningi njengoba echitha isikhathi esiningi e-roaster.
Abagazingi kufanele baqale bafunde imikhuba yokudla yamakhasimende abo.Lokhu kuzosiza ekunqumeni usayizi omaphakathi wekhofi elipakishiwe kanye namavolumu e-oda adingekayo.
Uma ikhofi lithengiswa ngamanani amancane, ngokuvamile alinaso isikhathi esanele sokubeka ubunzima ngokupakisha lapho ingekho i-valve yokukhipha umoya.Amakhasimende azophuza ikhofi ngokushesha okukhulu kunalokho abengakwenza ngamanani amakhulu, njengezikhwama ezingu-1kg.
Ezimweni ezinjalo, abarosa bangakhetha ukudayisela amaklayenti amanani aphansi ekhofi.
Kunezindlela zokugwema i-oxidation kuma-roasters angawasebenzisi ama-valve akhipha umoya.Ukugezwa kwe-nitrogen, isibonelo, kusetshenziswa abashisi abathile, kuyilapho abanye behlanganisa amasaka omoya-mpilo kanye ne-CO2 amuncayo emaphaketheni abo.
Ama-roasters nawo angaqinisekisa ukuthi indlela yokuvala yokuvala ayingeni komoya ngendlela engenzeka.Ukuvalwa kweziphu, isibonelo, kungase kube yimpumelelo kakhulu kunothayi kathayi ekugcineni umoya-mpilo ungangeni ezikhwameni zekhofi.
Elinye lamathuluzi ahlukahlukene atholakalayo kubashisi ukuqinisekisa ukuthi ikhofi labo lilethwa kumakhasimende lisesimweni esikahle amavalvu okukhipha umoya.
Ukuthi abagazingi banquma ukusebenzisa ivalve yokukhipha umoya noma cha, ukusebenza nochwepheshe bokupakisha kungasiza ukulondoloza izimfanelo zekhofi futhi kugcine abathengi bebuya ukuze bathole okwengeziwe.
Amavalvu okukhipha ugesi agaywa kabusha ngokuphelele futhi angenayo i-BPA ayatholakala ku-Cyan Pak futhi angase agaywe kabusha ngawo wonke amaphakheji ekhofi.Ikepisi, i-elastic disc, i-viscous layer, ipuleti le-polyethylene, nesihlungi sephepha yizingxenye ezivamile zala ma-valve.
Abasizi nje ukwenza umkhiqizo abathengi abangawusebenzisa kalula, kodwa futhi banciphisa imiphumela eyingozi ukupakishwa kwekhofi enayo endaweni ezungezile.
Ukuze sikunikeze ezinye izindlela ezingeziwe zokugcina ikhofi lakho lilisha, siphinde sihlanganise ama-ziplock, oziphu be-velcro, othayi bamathayela, nama-rip notches.
Amakhasimende angase aqiniseke ukuthi iphakethe lakho alinakuphazamiseka futhi lilisha ngangokunokwenzeka ngamanotshi aklebhukile nama-velcro zipper, anikeza isiqinisekiso sokuzwa sokuvala okuqinile.Izikhwama zethu eziphansi eziyisicaba zingasebenza kangcono ngothayi bamathayela ukuze kugcinwe ubuqotho besakhiwo bokupakishwa.
Isikhathi sokuthumela: Apr-20-2023