dziviriro yenyevero
Midziyo yekudzivirira muviri yakaita semagirovhosi, magirazi, shangu inofanira kupihwa pakushandisa michina iyi.
Kuisa, kumhanyisa, kuyedza, kudzima nekugadzirisa zvinhu kunofanirwa kuitwa nevashandi vane hunyanzvi (makanika emufiriji kana mainjiniya emagetsi) vane ruzivo rwakakwana uye ruzivo rwemhando iyi yemidziyo. Ibasa remutengi kupa vashandi vekuita basa racho.
Midziyo yese inogona kuchajwa nemhepo yakaoma ine simba rakawanda kana nitrogen. Iva nechokwadi chekuti waburitsa gasi rakamanikidzwa nokungwarira usati waisa kana kutanga kushandisa michina.
Dzivisa kubata mipendero yesimbi nemapapiro esimbi, sezvo mipendero yakapinza inogona kukonzera kukuvara kwemunhu.
Kufema kana kubata ganda ne refrigerant kunogona kukonzera kukuvara, refrigerant inoshandiswa mumudziyo uyu chinhu chinodzorwa uye chinofanira kushandiswa nekudzokororwa zvine hungwaru. Hazvibvumirwi nemutemo kuburitsa refrigerant munzvimbo yakapoteredza. Bata refrigerant nokungwarira, zvikasadaro, kukuvara kana kufa kunogona kuitika.
Magetsi anofanira kubviswa usati watanga kushanda kana kushanda kwemagetsi.
Dzivisa kusangana nepaipi inotonhorera uye nzvimbo dzinopisa kana michina iri kushanda. Nzvimbo dzinopisa kana dzinotonhora dzinogona kukanganisa ganda rako.
Mamiriro Ekugadzira Akajairika
Muchina wekupfapfaidza wepakati nepakati wakagadzirwa une tembiricha yekusveta yakasviba ye0°C uye mutsauko wetembiricha ye8K. Wakakodzera mafiriji ekutengeserana ane tembiricha yemukamuri inotangira pa -6°C kusvika 20°C. Dzimwe nzira dzekupfapfaidza dzinodiwa kana tembiricha yemukamuri iri pasi pe2°C. Mafiriji anokurudzirwa emuchina uyu wekupfapfaidza ndeaya: R507/R404A naR22.
Evaporator ine tembiricha yakaderera yakagadzirwa ine tembiricha yekusveta yakasviba ye -25°C uye mutsauko wetembiricha ye7K. Yakakodzera kuchengeterwa zvinhu zvinotonhora zvekutengeserana ine tembiricha yemukamuri inotangira pa -6°C kusvika -32°C. Mafiriji anokurudzirwa e evaporator iyi ndiR507/R404A naR22.
Ma evaporator aya haagone kushandisa ammonia (NH3) se refrigerant.
Nzvimbo inokurudzirwa yekuisa
Mitemo yekuronga evaporator ndeiyi inotevera:
Kupararira kwemhepo kunofanira kufukidza imba yese kana nzvimbo inoshanda.
Zvinorambidzwa kuisa evaporator pamusoro pemusuwo.
Kurongeka kwenzira dzekupinda nedzekuchengetera zvinhu hakufanirwe kudzivirira kuyerera kwemhepo inobuda uye kudzosa mweya we evaporator.
Kureba kwepombi kubva pa evaporator kuenda ku compressor kunofanira kupfupika sezvinobvira.
Chengeta daro repaipi kusvika padhireni riri pfupi sezvinobvira.
Kubvumirwa kushoma kwekugadzika kunobvumidzwa:
S1 - Kureba pakati pemadziro nerutivi rwemhepo rwekoiri inguva inosvika 500mm.
S2 – Kuti zvive nyore kugadzirisa, daro kubva pamadziro kusvika papuratifomu yekupedzisira rinofanira kunge riri 400mm.
Zvinyorwa zveKuisa
1. Kubviswa kwepakeji:
Pakuburitsa zvinhu, tarisa michina nezvinhu zvekurongedza kuti uone kana zvakakuvara, chero kukuvara kunogona kukanganisa mashandiro. Kana paine zvikamu zvakakuvara zviri pachena, ndapota taura nemutengesi nenguva.
2. Kuisa michina:
Ma evaporator aya anogona kuvharwa nemabhaudhi nenzungu. Kazhinji, bhaudhi rimwe chete re 5/16 nenzungu rinogona kutakura kusvika 110Kg (250lb) uye 3/8 rinogona kutakura kusvika 270Kg (600lb). Nekudaro, ibasa remugadziri kuona kuti evaporator yakaiswa zvakachengeteka uye zvine hunyanzvi munzvimbo yakatarwa.
Bootera evaporator wosiya nzvimbo yakakwana kubva pamusoro peplate kusvika padenga kuti zvive nyore kuchenesa.
Isa evaporator yakaenzana padenga, wovhara mukaha uri pakati pedenga nepamusoro pe evaporator nechivharo chechikafu.
Kuiswa kwe evaporator kunofanira kuitwa nehunyanzvi uye nzvimbo yacho inofanira kunge yakakodzera kuona kuti mvura yakavharirwa inogona kuburitswa zvakanaka kubva mu evaporator. Rutsigiro runofanira kunge rwakakwana kutakura huremu hwe evaporator pachayo, huremu hwe refrigerant yakachajwa uye huremu hwechando chakaiswa pamusoro pe coil. Kana zvichibvira, zvinokurudzirwa kushandisa mudziyo wekusimudza denga.
3. Pombi yekudhonza mvura:
Ndapota simbisai kuti kuiswa kwepombi yekudhonza mvura kunoenderana neHACCP yezvekudya nemitemo yekuchengetedza inoenderana. Zvinhu zvacho zvinogona kuva pombi yemhangura, pombi yesimbi isina ngura kana pombi yePVC, sekureva kwemutengi. Pakushandisa tembiricha yakaderera, insulation uye waya dzekudziisa dzinodiwa kudzivirira pombi yekudhonza mvura kuti isaome. Zvinokurudzirwa kuisa mapaipi ekudhonza mvura nemazvo pese panosvika 1m ye300mm. Pombi yekudhonza mvura ine saizi yakaenzana neyekubatanidza evaporator sump pan. Mapaipi ese ekudhonza mvura anofanirwa kuiswa neU-shaped bends kudzivirira mhepo yekunze uye hwema kuti husapinde mucold storage. Hazvibvumidzwe zvachose kubatana zvakananga nesewage system. MaU-bends ese anoiswa panze kudzivirira icing. Zvinokurudzirwa kuti kureba kwepombi yekudhonza mvura mucold storage kuve kupfupi sezvinobvira.
4. Musiyanisi wefiriji nemuromo:
Kuti pave nechokwadi chekuti evaporator inotonhodza zvakanaka, chinhu chinoparadzanisa mvura chinofanira kuiswa chakamira kuti chive nechokwadi chekuti firiji inogoverwa zvakaenzana kune imwe neimwe circuit yekutonhodza.
5. Vharuvhu yekuwedzera kupisa, paki yekuona tembiricha uye pombi yekuenzanisa yekunze:
Kuti tiwane mhedzisiro yakanaka yekutonhodza, vharuvhu yekuwedzera kupisa inofanira kuiswa pedyo nechinhu chinoparadzanisa mvura sezvinobvira.
Isa girobhu rekuwedzera thermal munzvimbo yakatwasuka yepombi yekusveta uye pedyo nemusoro wekusveta. Kuti uwane mamiriro ekushanda anogutsa, zvakakosha kuve nechokwadi chekuti girobhu iri rinobata zvakanaka nekupisa. Kuiswa kwevharuvhu rekuwedzera thermal negirobhu rekupisa kunofanirwa kutevedzera mirairo yemugadziri. Kusaiswa zvakanaka kunogona kukonzera kutonhora kusina kunaka.
Pombi yekunze inoshandiswa kubatanidza nzvimbo yekunze yevharuvhu yekuwedzera kupisa uye pombi yekusveta iri pedyo nepombi yekusveta. Pombi yemhangura ye 1/4 inch inobatanidza nepombi yekusveta inonzi pombi yekunze yekuenzanisa.
Cherechedza: Parizvino, kunaka kwevharuvhu yekuwedzera kupisa kwakanaka, hapana kudonha kwakanyanya kwemvura inotonhorera papombi yekunze, uye mashandiro acho akagadzikana. Saka, nzvimbo yekubatanidza yekunze inogona kunge iri pamberi pesensa yekupisa kana kumashure kwesensa yekupisa.
6. Pombi yekuisa mufiriji:
Kugadzira nekugadza mapaipi efiriji kunofanirwa kuitwa nevanyanzvi vemafiriji zvinoenderana nemitemo yenyika neyemunharaunda, uye zvichienderana nemaitiro akanaka einjiniya yefiriji.
Panguva yekuisa, deredza nguva iyo nozzle inoonekwa mumhepo kudzivirira kupinda kwetsvina yekunze uye hunyoro.
Pombi inobatanidza firiji haifanirwe kunge yakafanana nepaipi inoburitsa mvura mu evaporator. Kusarudzwa uye kuverengwa kwehukuru hwepaipi kunofanirwa kunge kwakavakirwa papfungwa yekuderera kwepressure zvishoma uye kuderedza kumhanya kwemhepo.
Pombi yekusveta yakatambanudzwa inofanira kusiya evaporator iine chinangwa chakati kuti ive nechokwadi chekuti simba rekupukuta mafuta akaomeswa nechando rinodzokera kucompressor. Kutsvedza kwe1:100 kwakakwana. Kana pombi yekusveta yakakwira kupfuura evaporator, zviri nani kuisa musungo wekudzorera mafuta.
Gwaro rekugadzirisa matambudziko
Kutanga nekutanga kushanda kwesystem yekufiriji kunofanirwa kuitwa nenyanzvi yemakanika wefiriji ane hunyanzvi zvichienderana netsika chaiyo yekushanda kwefiriji.
Sisitimu iyi inofanira kuchengetedza vacuum yakakwana kuitira kuti pasave nekubuda kwemvura pakuchaja refrigerant. Kana paine kudonha kwemvura musisitimu, zvinoonekwa kuti kuchaja refrigerant hakubvumirwi. Kana sisitimu isiri pasi pevacuum, tarisa kana paine kudonha kwemvura ine nitrogen pasi pekumanikidzwa usati wachaja refrigerant.
Inyanzvi yakanaka yekuisa chitofu chemvura chinoomesa negirazi rinoona zvinhu mufiriji. Zvishandiso zvekuomesa zvine mutsindo zvinoita kuti chitofu chive chakachena uye chakaoma. Girazi rinoona zvinhu rinoshandiswa kuona kuti mufiriji mune chitofu chakakwana.
Kuchaja kunoitwa nechinhu chinotonhorera mvura, chinowanzova parutivi rwechinodzvanywa zvakanyanya, senge condenser kana accumulator. Kana kuchaja kuchifanirwa kuitwa parutivi rwecompressor, kunofanira kuchaja muchimiro chegasi.
Waya dzemufekitori dzinogona kunge dzakasununguka nekuda kwekutakurwa, ndapota simbisaizve waya dzacho musati mabuda mufekitori newaya dziri panzvimbo yacho. Tarisai kuti mota yefeni iri kufamba nenzira kwayo uye kuti mweya wabviswa kubva mucoil woburitswa kubva kudivi refeni.
Gwaro reKudzima
Bvisa evaporator panzvimbo yayo yekutanga uye inofanira kuputswa nenyanzvi yekuchenesa firiji ine hunyanzvi mushure mekuita zvinotevera. Kukundikana kutevedzera maitiro aya kuchaita kuti mushandi akuvara kana kufa uye kukuvara kwezvinhu nekuda kwemoto kana kuputika. Hazvibvumirwi nemutemo kuburitsa refrigerant zvakananga mumhepo. Refrigerant yakazara inofanira kupombwa kuenda kuaccumulator kana tangi rekuchengetera mvura yakakodzera, senge silinda yekudzokorodza, uye vharuvhu inoenderana nayo inofanira kuvharwa panguva imwe chete. Mafiriji ese akatorwa asingakwanise kushandiswazve anofanira kutumirwa kunzvimbo dzakanyatsokodzera kushandiswazve kana kuputswa kwerefrigerant.
Bvisa magetsi. Bvisa waya dzese dzisingadiwi, zvikamu zvemagetsi zvinoenderana nazvo, wozopedzisira wacheka waya yepasi wobvisa dhireni.
Kuti kumanikidzwa kuri pakati pemuchina wekupwanya mvura nekunze kuenzane, kungwarira kwakakosha kunofanira kutorwa pakuvhura vharuvhu yetsono. Huwandu hwakati hwemuchina wekupwanya mvura hunonyungudika mumafuta ekuzora. Kana kumanikidzwa kwemuchina wekupwanya mvura kukakwira, muchina wekupwanya mvura unofashaira wobva waita chando, izvo zvinogona kukonzera kukuvara kwemunhu.
Cheka wovhara majoini emvura negasi.
Bvisa evaporator panzvimbo yekuisa. Kana zvichidikanwa, shandisa michina yekusimudza.
kugadzirisa nguva dzose
Zvichienderana nemamiriro ekushanda akajairika uye nharaunda, mushure mekuvhurwa zvakanaka, purogiramu yekugadzirisa inofanira kugadzirwa kuti ive nechokwadi chekuti evaporator inoshanda zvakanaka ukuwo mari yekushandisa iri shoma. Paunenge uchigadzirisa, tarisa uye nyora pasi zvinotevera:
Tarisa muchina we evaporator kuti uone kana usina ngura, kudengenyeka kusina kujairika, maplug emafuta uye madhireni ane tsvina. Madhireni anoda kucheneswa nguva nenguva nemvura inodziya ine sipo.
Chenesai mapapiro e evaporator nebhurashi rakapfava, sukurudzai ma coil nemvura ine simba shoma kana kushandisa muchina wekuwachisa coil unowanikwa kutengeswa. Kushandiswa kwemishonga yekuchenesa ine acidic hakubvumidzwe. Ndapota teverai nhungamiro dzekushandiswa kwelogo. Sukurudzai coil kusvika pasisina zvasara.
Tarisa kuti feni yega yega inotenderera nemazvo, kuti chifukidziro chefeni hachina kuvharwa, uye kuti mabhaudhi akasimbiswa.
Tarisa waya, zvinobatanidza, nezvimwe zvikamu kuti zvionekwe kana waya yacho yakuvara, waya dzakasununguka, uye kuti zvikamu zvacho hazvina kucheneruka here.
Tarisa kana paine chando chakafanana pa coil yekubuda kwemhepo panguva yekushanda. Kusaenzana kwebhokisi kunoratidza kuvharika kwemusoro we dispenser kana kuti kushaikwa kwe refrigerant kusina kunaka. Panogona kunge pasina chando pa coil panzvimbo yekusveta nekuda kwegasi rinopisa zvakanyanya.
Tarisa mamiriro echando asina kujairika uye gadzirisa kunyungudika kwemvura zvinoenderana.
Tarisa kupisa kwakanyanya uye gadzirisa vharuvhu yekuwedzera kupisa zvinoenderana.
Magetsi anofanira kudzimwa panguva yekuchenesa nekugadzirisa. Mapani ekudhonza mvura zvikamu zvinodawo kugadziriswa (zvikamu zvinopisa, zvinotonhora, zvemagetsi uye zvinofamba). Pane njodzi yekuchengetedzeka pakushanda kwemuchina we evaporator usina mvura inoyerera.
Nguva yekutumira: Mbudzi-23-2022
