chitetezo cha chenjezo
Zipangizo zodzitetezera monga magolovesi, magalasi, nsapato ziyenera kuperekedwa pogwiritsira ntchito chipangizochi.
Ntchito zokhazikitsa, kuyambitsa, kuyesa, kuzimitsa ndi kukonza ziyenera kuchitidwa ndi anthu oyenerera (makanika a firiji kapena akatswiri amagetsi) omwe ali ndi chidziwitso chokwanira komanso luso logwiritsa ntchito zida zamtunduwu. Ndi udindo wa kasitomala kupereka antchito ogwira ntchito kuti agwire ntchitoyo.
Zipangizo zonse zitha kukhala ndi mpweya wouma kapena nayitrogeni wokwera mphamvu. Onetsetsani kuti mwatulutsa mpweya wopanikizika mosamala musanayike kapena kuyambitsa zidazo.
Pewani kukhudza m'mphepete mwa chitsulo ndi zipsepse za chozungulira, chifukwa m'mphepete mwake mukuthwa zingayambitse kuvulala.
Kupuma mpweya kapena kukhudzana ndi firiji kungayambitse kuvulala, firiji yomwe imagwiritsidwa ntchito mu chipangizochi ndi chinthu cholamulidwa ndipo iyenera kugwiritsidwa ntchito moyenera. Ndikoletsedwa kutulutsa firiji m'malo ozungulira. Gwirani firiji mosamala kwambiri, apo ayi, kuvulala kapena kufa kungachitike.
Magetsi ayenera kuchotsedwa ntchito isanayambe ntchito iliyonse yamagetsi kapena magetsi.
Pewani kukhudzana ndi mapaipi oziziritsa komanso malo osinthira kutentha pamene zipangizo zikugwira ntchito. Malo otentha kapena ozizira angawononge khungu lanu.
Mikhalidwe Yokhazikika Yopangidwira
Chotenthetsera chapakati chotenthetsera chimapangidwa ndi kutentha kokwanira kwa 0°C komanso kusiyana kwa kutentha kwa 8K. Ndi choyenera mafiriji amalonda omwe kutentha kwa chipinda kumakhala kuyambira -6°C mpaka 20°C. Njira zina zosungunulira zikufunika pamene kutentha kwa chipinda kuli pansi pa 2°C. Mafiriji omwe amalimbikitsidwa pa chotenthetsera ichi ndi R507/R404A ndi R22.
Chotenthetsera mpweya chotentha chotsika chimapangidwa ndi kutentha kokwanira kwa -25°C komanso kusiyana kwa kutentha kwa 7K. Ndi choyenera kusungidwa m'malo ozizira komanso kutentha kwa chipinda kuyambira -6°C mpaka -32°C. Mafiriji omwe amalimbikitsidwa kugwiritsa ntchito chotenthetsera mpweya ichi ndi R507/R404A ndi R22.
Ma evaporator okhazikika awa sangagwiritse ntchito ammonia (NH3) ngati refrigerant.
Malo oti muyikemo
Malamulo oyendetsera evaporator ndi awa:
Kugawa mpweya kuyenera kuphimba chipinda chonse kapena malo ogwira ntchito.
N'koletsedwa kuyika evaporator pamwamba pa chitseko.
Kapangidwe ka mipata ndi mashelufu sikuyenera kulepheretsa njira zoyendera mpweya wopereka ndi mpweya wobwerera wa evaporator.
Mtunda wa mapaipi kuchokera ku evaporator kupita ku compressor uyenera kukhala waufupi momwe zingathere.
Sungani mtunda wa paipi ndi ngalande kukhala waufupi momwe mungathere.
Chilolezo chochepa chovomerezeka choyikira:
S1 - Mtunda pakati pa khoma ndi mbali ya mpweya wa coil ndi osachepera 500mm.
S2 - Kuti zinthu zisamavute kukonza, mtunda wochokera pakhoma kupita ku mbale yomaliza uyenera kukhala osachepera 400mm.
Zolemba Zokhazikitsa
1. Kuchotsa phukusi:
Mukatsegula zinthu, yang'anani zida ndi zinthu zopakira kuti muwone ngati zawonongeka, kuwonongeka kulikonse kungakhudze momwe zinthuzo zimagwirira ntchito. Ngati pali zinthu zomwe zawonongeka, chonde funsani wogulitsayo nthawi yomweyo.
2. Kukhazikitsa zida:
Ma evaporator awa amatha kumangidwa ndi mabolt ndi mtedza. Kawirikawiri, bolt imodzi ya 5/16 ndi mtedza imatha kunyamula mpaka 110Kg (250lb) ndipo 3/8 imatha kunyamula mpaka 270Kg (600lb). Komabe, ndi udindo wa wokhazikitsa kuonetsetsa kuti evaporator yayikidwa bwino komanso mwaukadaulo pamalo omwe asankhidwa.
Mangani chotenthetsera madzi ndipo siyani malo okwanira kuyambira pamwamba mpaka padenga kuti chiyeretsedwe mosavuta.
Ikani evaporator molingana ndi denga, ndipo tsekani mpata pakati pa denga ndi pamwamba pa evaporator ndi chotsekera chakudya.
Kukhazikitsa evaporator kuyenera kukhala kwaukadaulo ndipo malo ake ayenera kukhala oyenera kuti madzi otsekedwa atuluke bwino mu evaporator. Thandizo liyenera kukhala ndi mphamvu zokwanira zonyamula kulemera kwa evaporator yokha, kulemera kwa refrigerant yomwe yayikidwa komanso kulemera kwa chisanu chomwe chili pamwamba pa coil. Ngati n'kotheka, tikulimbikitsidwa kugwiritsa ntchito chipangizo chonyamulira kuti tikweze denga.
3. Chitoliro chotulutsira madzi:
Chonde tsimikizirani kuti kuyika chitoliro chotulutsira madzi kukutsatira HACCP ya chakudya ndi malamulo ofunikira a chitetezo. Zipangizozo zitha kukhala chitoliro cha mkuwa, chitoliro chachitsulo chosapanga dzimbiri kapena chitoliro cha PVC, malinga ndi kasitomala. Pakugwiritsa ntchito kutentha kochepa, mawaya otenthetsera ndi otenthetsera amafunika kuti chitoliro chotulutsira madzi chisazizire. Ndikofunikira kuyika mapaipi otulutsira madzi molondola pamtunda uliwonse wa 1m wa 300mm. Chitoliro chotulutsira madzi chimakhala chofanana ndi cholumikizira cha evaporator sump pan. Mapaipi onse otulutsira madzi oundana ayenera kuyikidwa ndi ma bend ofanana ndi U kuti mpweya wakunja ndi fungo lisalowe m'malo osungira madzi ozizira. Ndikoletsedwa kotheratu kulumikizana mwachindunji ndi dongosolo la zinyalala. Ma U-bend onse amayikidwa panja kuti apewe icing. Ndikofunikira kuti kutalika kwa chitoliro chotulutsira madzi mumalo osungira madzi ozizira kukhale kochepa momwe kungathekere.
4. Cholekanitsa ndi chotulutsira mpweya mufiriji:
Pofuna kuonetsetsa kuti evaporator ikuzizira bwino, cholekanitsa madzi chiyenera kuyikidwa molunjika kuti chionetsetse kuti firiji ikugawidwa mofanana ku dera lililonse loziziritsira.
5. Valavu yowonjezera kutentha, phukusi lozindikira kutentha ndi chitoliro chakunja choyezera bwino:
Kuti zitheke bwino kwambiri kuziziritsa, valavu yokulitsa kutentha iyenera kuyikidwa pafupi ndi cholekanitsa madzi momwe zingathere.
Ikani babu la valavu yokulitsa kutentha pamalo opingasa a chitoliro chokokera madzi pafupi ndi mutu wa suction. Kuti mugwire bwino ntchito, ndikofunikira kuonetsetsa kuti kutentha kuli bwino pakati pa babu ndi chitoliro chokokera madzi. Kuyika kwa valavu yokulitsa kutentha ndi babu la kutentha kuyenera kutsatira malangizo a wopanga. Kuyika kosayenera kungayambitse kuzizira koyipa.
Chitoliro chakunja choyezera chimagwiritsidwa ntchito kulumikiza doko lakunja la valavu yowonjezera kutentha ndi chitoliro choyezera pafupi ndi chitoliro choyezera. Chitoliro cha mkuwa cha 1/4 inchi chomwe chimalumikizana ndi chitoliro choyezera chimatchedwa chitoliro chakunja choyezera.
Chidziwitso: Pakadali pano, khalidwe la valavu yokulitsa kutentha ndi labwino, palibe kutuluka kwa madzi mufiriji pa chitoliro chakunja, ndipo ntchito yake ndi yokhazikika. Chifukwa chake, malo olumikizirana akunja akhoza kukhala kutsogolo kwa sensa yotenthetsera kapena kumbuyo kwa sensa yotenthetsera.
6. Chitoliro cha firiji:
Kapangidwe ndi kukhazikitsidwa kwa mapaipi oziziritsira kuyenera kuchitidwa ndi akatswiri odziwa bwino ntchito zoziziritsira motsatira malamulo a dziko ndi akumaloko, komanso motsatira njira zabwino zogwirira ntchito zaukadaulo woziziritsira.
Mukakhazikitsa, chepetsani nthawi yomwe nozzle imawululidwa mumlengalenga kuti mupewe kulowa kwa zinyalala ndi chinyezi chakunja.
Chitoliro cholumikizira choziziritsira sichiyenera kukhala chofanana ndi chitoliro chotulukira cha evaporator. Kusankha ndi kuwerengera kukula kwa chitoliro kuyenera kutengera mfundo ya kutsika pang'ono kwa mphamvu ndi kuchepetsa liwiro la kuyenda.
Chitoliro choyatsira mafuta chopingasa chiyenera kusiya evaporator ndi njira inayake kuti zitsimikizire kuti mphamvu ya ma wipes a mafuta oundana ibwerera ku compressor. Kutsetsereka kwa 1:100 ndikokwanira. Chitoliro choyatsira mafuta chikakhala chokwera kuposa evaporator, ndi bwino kuyika chotchingira mafuta.
Buku lothandizira kukonza zolakwika
Kuyambitsa ndi kuyambitsa makina oziziritsira kuyenera kuchitidwa ndi katswiri wodziwa bwino ntchito yoziziritsira malinga ndi momwe amagwirira ntchito bwino.
Dongosololi liyenera kukhala ndi vacuum yokwanira kuti pasakhale kutuluka madzi pochaja firiji. Ngati pali kutuluka madzi m'dongosololi, zimamveka kuti kubwezeretsa mphamvu mufiriji sikuloledwa. Ngati dongosololi silili pansi pa vacuum, yang'anani ngati pali kutuluka madzi ndi nayitrogeni pansi pa mphamvu musanachaje firiji.
Ndi njira yabwino kwambiri yogwiritsira ntchito makina owumitsira madzi ndi magalasi owonera mufiriji. Makina owumitsira madzi amaonetsetsa kuti firiji yomwe ili mufiriji ndi yoyera komanso youma. Galasi lowonera limagwiritsidwa ntchito kuwonetsetsa kuti pali firiji yokwanira mufiriji.
Kuchaja kumachitika ndi choziziritsira madzi, chomwe nthawi zambiri chimakhala mbali yamphamvu ya makina, monga condenser kapena accumulator. Ngati kuchaja kuyenera kuchitika mbali yoyamwa ya compressor, kuyenera kuchajidwa ngati mpweya.
Mawaya a fakitale akhoza kukhala omasuka chifukwa cha mayendedwe, chonde tsimikiziraninso mawayawo musanatuluke mufakitale ndi mawaya omwe ali pamalopo. Onetsetsani kuti mota ya fan ikuyenda bwino komanso kuti mpweya watuluka kuchokera ku coil ndikutuluka kuchokera kumbali ya fan.
Buku Lotsogolera Kutseka
Chotsani evaporator pamalo ake oyamba ndipo iyenera kuchotsedwa ndi katswiri wodziwa bwino ntchito yoziziritsa kutentha potsatira njira ili m'munsiyi. Kulephera kutsatira njira iyi kungayambitse kuvulala kapena imfa ndi kuwonongeka kwa katundu chifukwa cha moto kapena kuphulika. N'kosaloledwa kutulutsa refrigerant mwachindunji mumlengalenga. Refrigerant yodzaza ndi mphamvu iyenera kupopedwa ku accumulator kapena thanki yoyenera yosungiramo madzi, monga silinda yobwezeretsanso, ndipo valavu yoyenera iyenera kutsekedwa nthawi yomweyo. Ma refrigerant onse omwe abwezedwa omwe sangagwiritsidwenso ntchito ayenera kutumizidwa kumalo oyenerera ogwiritsiranso ntchito refrigerant kapena malo owonongera.
Dulani magetsi. Chotsani mawaya onse osafunikira, zida zamagetsi zogwirizana, ndipo potsiriza dulani waya wapansi ndikudula ngalande.
Pofuna kulimbitsa mphamvu pakati pa evaporator ndi dziko lakunja, chisamaliro chapadera chiyenera kutengedwa potsegula pakati pa valavu ya singano. Mulingo wina wa refrigerant umasungunuka mu mafuta odzola. Pamene mphamvu ya evaporator ikukwera, refrigerant imawira ndikusweka, zomwe zingayambitse kuvulala.
Dulani ndi kutseka malo olumikizirana a madzi ndi mpweya.
Chotsani evaporator pamalo oikira. Ngati pakufunika, gwiritsani ntchito zida zonyamulira.
kukonza nthawi zonse
Kutengera momwe zinthu zilili komanso malo omwe zinthu zilili, pambuyo poyimitsa bwino ntchito, ndondomeko yokonza iyenera kukonzedwa kuti iwonetsetse kuti evaporator ikugwira ntchito bwino komanso kuti ndalama zogwirira ntchito zikhale zochepa. Mukamakonza, yang'anani ndikulemba magawo otsatirawa:
Yang'anani evaporator kuti muwone ngati ili ndi dzimbiri, kugwedezeka kosazolowereka, mapulagi amafuta ndi ngalande zonyansa. Ngalande zotayira madzi zimafunika kutsukidwa pafupipafupi ndi madzi ofunda a sopo.
Tsukani zipsepse za evaporator ndi burashi yofewa, tsukani ma coil ndi madzi ochepa kapena gwiritsani ntchito chotsukira ma coil chomwe chimapezeka m'masitolo. Kugwiritsa ntchito mankhwala oyeretsera okhala ndi asidi n'koletsedwa. Chonde tsatirani malangizo ogwiritsira ntchito chizindikirocho. Tsukani coil mpaka palibe zotsalira.
Onetsetsani kuti fani iliyonse ya mota ikuzungulira bwino, kuti chivundikiro cha fani sichinatsekeke, komanso kuti mabawuti akhazikika.
Yang'anani mawaya, zolumikizira, ndi zigawo zina kuti zione ngati waya wawonongeka, waya wosasunthika, ndi kuwonongeka kwa zigawozo.
Yang'anani ngati pali chisanu chofanana pa coil yochokera kumbali ya utsi panthawi yogwira ntchito. Bokisi losafanana limasonyeza kutsekeka kwa mutu wa dispenser kapena mphamvu yolakwika ya refrigerant. Pakhoza kukhala palibe chisanu pa coil pamalo opopera chifukwa cha mpweya wotentha kwambiri.
Yang'anani ngati pali chisanu chosazolowereka ndipo sinthani kayendedwe ka madzi oundana moyenerera.
Yang'anani kutentha kwambiri ndikusintha valavu yowonjezera kutentha moyenera.
Magetsi ayenera kuzimitsidwa poyeretsa ndi kukonza. Ma pani otulutsira madzi ndi zida zomwe zimafunika kukonzedwa (zotentha, zozizira, zamagetsi ndi zoyenda). Pali chiopsezo cha chitetezo pakugwira ntchito kwa evaporator popanda chidebe cha madzi.
Nthawi yotumizira: Novembala-23-2022
