Pamberi pekuchengetedza, kutakurwa uye kugadziriswa kwemiriwo yakakohwewa, kupisa kwemunda kunofanira kubviswa nokukurumidza, uye nzira yekukurumidza kutonhora kupisa kwayo kusvika kune yakataurwa tembiricha inonzi precooling.Pre-kutonhora kunogona kudzivirira kuwedzera kwekushisa kwenzvimbo yekuchengetera kunokonzerwa nekupisa kwekufema, nekudaro kuderedza kufema kwemuriwo uye kuderedza kurasikirwa mushure mekukohwa.Mhando dzakasiyana uye mhando dzemiriwo dzinoda akasiyana pre-kutonhora tembiricha, uye akakodzera pre-kutonhora nzira dzakasiyana.Kuti precool miriwo munguva mushure mekukohwa, zviri nani kuzviita panzvimbo yepakutanga.
Iyo pre-kutonhora nzira dzemuriwo dzinonyanya kusanganisira dzinotevera:
1. Kutonhora kwechisikigo precooling kunoisa miriwo yakakohwewa munzvimbo inotonhorera uye inofefetera, kuitira kuti kupisa kwechisikigo kuparara kwezvigadzirwa kunogona kuzadzisa chinangwa chekutonhora.Iyi nzira iri nyore uye iri nyore kushanda pasina chero midziyo.Iyo inzira inokwanisika munzvimbo dzine mamiriro asina kunaka.Nekudaro, iyi precooling nzira inodzivirirwa nekunze tembiricha panguva iyoyo, uye hazvigoneke kusvika kune precooling tembiricha inodiwa nechigadzirwa.Uyezve, iyo precooling nguva yakareba uye mhedzisiro yacho haina kunaka.Kuchamhembe, iyi pre-kutonhora nzira inowanzoshandiswa pakuchengetedza Chinese cabbage.
2. Iyo inotonhora yekuchengetedza precooling (Precooling Room) icharongedza zvigadzirwa zvemuriwo zvakarongedzerwa mubhokisi rekurongedza mune inotonhora yekuchengetedza.Panofanira kuva nemukaha pakati pezviputi uye nzira imwe chete nemhepo yekubuda kwemhepo yemhepo yekuchengetera inotonhora kuti uone kuti kupisa kwezvigadzirwa kuchabviswa kana kuyerera kwemhepo kuchipfuura zvakanaka.Kuti uwane zvirinani precooling mhedzisiro, mwero wekuyerera kwemhepo muimba yekuchengetera unofanirwa kusvika 1-2 metres pasekondi, asi haifanirwe kunge yakakura zvakanyanya kudzivirira kupera simba kwemiriwo mitsva.Iyi nzira ndiyo yakajairika precooling nzira parizvino uye inogona kushandiswa kune ese marudzi emiriwo.
3. Kumanikidzira mhepo inotonhorera (differential pressure cooler) kugadzira kuyerera kwemhepo kwakasiyana-siyana pamativi maviri ebhokisi rekurongedza rine zvigadzirwa, kuitira kuti mhepo inotonhora imanikidzirwe kuburikidza nebhokisi rega rega rekurongedza uye inopfuura ichitenderedza chigadzirwa chimwe nechimwe, nokudaro ichibvisa kupisa kwechigadzirwa.Iyi nzira ndeye 4 kusvika ku10 nguva nekukurumidza kupfuura inotonhora yekuchengetedza precooling, nepo inotonhora yekuchengetedza precooling inogona kungoita kupisa kwechigadzirwa kupenya kubva pamusoro pebhokisi rekurongedza.Iyi precooling nzira inoshandawo kune yakawanda miriwo.Kune nzira dzakawanda dzekumanikidzira kutonhora kwemhepo.Nzira yekutonhodza tunnel yakashandiswa kwemakore akawanda muSouth Africa neUnited States.Mushure memakore ekutsvagisa nevashandi vesainzi uye tekinoroji, China yakagadzira nzvimbo iri nyore yekumanikidza kufefetera precooling.
Iyo chaiyo nzira ndeyekuisa chigadzirwa mubhokisi rine yunifomu zvirevo uye yunifomu maburi emhepo, kurongedza bhokisi mune rectangular stack, siya mukaha munzira yekureba yenzvimbo yestack, kuvhara migumo miviri ye stack uye pamusoro pe. iyo stack yakasimba ne canvas kana firimu repurasitiki, imwe magumo ayo akabatana nefani kuti ape simba, kuitira kuti gaka riri munzvimbo ye stack rigadzire nzvimbo yekushushikana, ichimanikidza mhepo inotonhora kumativi ese ecanvas isina kufukidzwa kuti ipinde yakaderera-. nzvimbo yekumanikidza kubva pagomba rekufemesa rebhokisi repasuru, Kupisa kuri muchigadzirwa kunoitwa munzvimbo yakaderera-kudzvanywa, uye yozoregedzerwa kune stack nefani kuti iwane mhedzisiro ye precooling.Iyi nzira inofanirwa kutarisisa kune zvine hungwaru kurongedza emakesi ekurongedza uye nekumisikidzwa kwecanvas uye fan, kuitira kuti mweya unotonhora ungopinda nepakati pegomba pane yekurongedza kesi, zvikasadaro precooling mhedzisiro haigone kuwanikwa.
4. Vacuum precooling (Vacuum Cooler) kuisa miriwo mumudziyo wakavharwa, kukurumidza kuburitsa mweya mumudziyo, kuderedza kudzvanywa mumudziyo, uye kuita kuti chigadzirwa chitonhore nekuda kwekubuda kwemvura pamusoro.At normal atmospheric pressure (101.3 kPa, 760 mm Hg *), mvura inobuda pa100 ℃, uye kana pressure yadzika kusvika 0.53 kPa, mvura inogona kubuda pa 0 ℃.Kana tembiricha yadzikira ne5 ℃, inenge 1% yehuremu hwechigadzirwa inoputika.Kuti usaite kuti miriwo irasikirwe nemvura yakawandisa, pfapfaidza imwe mvura isati yatonhora.Iyi nzira inoshandiswa kune precooling yemiriwo yemashizha.Pamusoro pezvo, senge asparagus, howa, Brussels inomera, uye bhinzi dzeDutch zvinogona zvakare kutonhorera-kutonhorera ne vacuum.Iyo vacuum precooling nzira inogona kungoitwa neyakakosha vacuum precooling mudziyo, uye mari yacho yakakura.Parizvino, nzira iyi inonyanya kushandiswa kugadzira miriwo yekubika kunze kwenyika kuChina.
5. Cold water precooling (Hydro Cooler) ndeyekupfapfaidza mvura yakatonhorera (padyo ne0 ℃ sezvinobvira) pamuriwo, kana kunyudza muriwo mumvura inoyerera inotonhora kuti uwane chinangwa chekutonhodza muriwo.Nekuda kwekuti kupisa kwemvura kwemvura kwakakura zvakanyanya kupfuura iyo yemhepo, iyo inotonhora mvura inotonhorera nzira yekushandisa mvura seyekupisa yekufambisa svikiro inokurumidza kupfuura nzira yekufefetera precooling, uye mvura inotonhorera inogona kudzokororwa.Zvisinei, mvura inotonhora inofanira kunge isina utachiona, kana zvisina kudaro chigadzirwa chichasvibiswa nema microorganisms.Naizvozvo, mamwe ma disinfectants anofanira kuwedzerwa kumvura inotonhora.
Midziyo yemvura inotonhorera precooling nzira ndiyo inotonhorera yemvura, iyo inofanirwawo kucheneswa nemvura kazhinji panguva yekushandisa.Iyo nzira yemvura inotonhora inotonhorera inogona kusanganiswa nekuchenesa mushure mekukohwa uye disinfection yemiriwo.Iyi nzira isati yatonhora inonyanya kushanda kune miriwo yemichero uye midzi yemidzi, asi kwete kumashizha emashizha.
6. Bata ice pre-cooling (Ice Injector) ndeyekuwedzera kune dzimwe nzira dzekutanga-kutonhora.Iko kuisa aizi yakapwanyika kana musanganiswa weaizi nemunyu pamusoro pemidziyo yemuriwo mugaba rekurongedzerwa kana mota kana ngoro yechitima.Izvi zvinogona kuderedza kupisa kwechigadzirwa, kuve nechokwadi chekutsva kwechigadzirwa panguva yekufambisa, uye zvakare kuita basa rekutanga kutonhora.Nekudaro, iyi nzira inogona kushandiswa chete kune zvigadzirwa zvinosangana nechando uye hazvizokonzerese kukanganisa.Zvakadai sepinashi, broccoli uye radish.
Nguva yekutumira: Jun-03-2022