1.Inspection zinthu ozizira yosungirako wononga compressors
(1) Onani ngati pali zizindikiro zobvala zachilendo mkati mwa thupi ndi pamwamba pa valavu ya slide, ndipo yesani kukula ndi kuzungulira kwamkati ndi choyezera chamkati cha dial.
(2) Onani ngati pali zizindikiro zovala kumapeto kwa ma rotor akuluakulu ndi oyendetsedwa ndi mipando yakumapeto ndi kuyamwa.
(3) Yang'anani mavalidwe a m'mimba mwake akunja ndi dzino pamwamba pa zozungulira zazikulu ndi zoyendetsedwa, ndipo yesani m'mimba mwake yakunja kwa rotor ndi chojambulira chojambulira chakunja.
(4) Yesani kukula kwa shaft yayikulu ya rotor ndi m'mimba mwake mkati mwa dzenje lalikulu, ndikuwona kuvala kwa chotengera chachikulu.
(5) Onani kuvala kwa chisindikizo cha shaft.
(6) Onani mphete zonse za "o" ndi akasupe kuti awonongeke komanso kuwonongeka.
(7) Onani momwe mayendedwe onse amafuta amkati a kompresa alili.
(8) Onani ngati chizindikiro cha mphamvu chawonongeka kapena chatsekedwa.
(9) Yang'anani piston yamafuta ndi pistoni yokwanira kuti ivalidwe mwachilendo.
(10) Onani ngati poyambira kapena diaphragm ya cholumikizira chawonongeka.
2.Kukonza ndi kulephera kwa screw firiji
A.Alamu yotsika yamadzi ozizira
Chophimba cha madzi ozizira chandamale sichimatsekedwa, yang'anani ndikusintha kusintha koyenda.
Pampu yamadzi ozizira siyiyatsidwa.
Valavu yotseka yapaipi yamadzi ozizira sinatseguke.
B.Alamu yamphamvu yamafuta
Kutha kwa alamu yosinthira mafuta ngakhalenso mafuta, alamu yamphamvu yamafuta, ma alarm akusintha kwamafuta.
Kwa nthawi yayitali yogwira ntchito pansi pa katundu wochepa, njira yabwino ndiyo kusunga unit ikugwira ntchito mokwanira.
Kutentha kwamadzi ozizira kumakhala kochepa (osakwana madigiri 20), zomwe zimapangitsa kuti zikhale zovuta kusunga mafuta ndi kusiyana kwa mphamvu.
C.Alamu yamphamvu yotsika
Sensa yotsika kwambiri imalephera kapena imakhala ndi kukhudzana koyipa, yang'anani kapena kuyisintha.
Kusakwanira kwa refrigerant charge kapena kutayikira kwa unit, fufuzani ndi kulipiritsa.
Chowumitsa zosefera chotsekeka, chotsani ndikuyeretsa.
Pamene kutsegula kwa valve yowonjezera kuli kochepa kwambiri, galimoto yodutsayo imawonongeka kapena imakhala yosalumikizana bwino, fufuzani, kukonza kapena kuisintha.
D.Alamu yamphamvu yotopa kwambiri
Ngati madzi ozizira sanatsegulidwe kapena kutuluka kwake sikukwanira, kuthamanga kumatha kuwonjezeka;
Kuzizira kwamadzi olowera kutentha ndikwambiri, fufuzani momwe nsanja yozizirira imagwirira ntchito;
Mapaipi amkuwa mu condenser amaipitsidwa kwambiri, ndipo mapaipi amkuwa ayenera kutsukidwa;
Pali gasi wosasunthika mu unit, kutulutsa kapena vacuumize unit;
Refrigerant yowonjezereka ikhoza kubwezeretsedwanso ku chiwerengero chofunikira cha refrigerant;
Mbali yogawa m'chipinda chamadzi cha condenser ndi theka-kudutsa, kukonzanso kapena kusintha gasket ya chipinda chamadzi;
Sensa yothamanga kwambiri imalephera.Bwezerani kachipangizo.
E.Kusiyana kwa kusiyana kwa mphamvu ya mafuta
Economizer kapena mafuta pressure sensor sensor imalephera, yang'anani ndikuisintha.
Zosefera zamkati ndi zakunja zatsekeka, sinthani fyulutayo.
Kulephera kwa ma valve a solenoid mafuta.Yang'anani koyilo, valavu ya solenoid, kukonza kapena kusintha.
Pampu yamafuta kapena valavu yanjira imodzi ya gulu la mpope wamafuta ndi yolakwika, fufuzani ndikusintha.
F.Kuweruza kuti mtengo wa refrigerant ndi wosakwanira
amafuna chidwi!Galasi loyang'ana pa chitoliro chamadzimadzi limasonyeza kuti thovu silokwanira kuweruza kusowa kwa refrigerant;kutentha kwa nthunzi yodzaza sikokwanira kuweruza kusowa kwa refrigerant;akhoza kuweruzidwa ndi njira zotsatirazi:
Tsimikizirani kuti chipangizocho chikuyenda pansi pa 100% katundu;
Tsimikizirani kuti kutentha kwa madzi ozizira a evaporator kuli pakati pa 4.5 ndi 7.5 madigiri;
Tsimikizirani kuti kusiyana kwa kutentha pakati pa cholowetsa madzi ozizira ndi kutuluka kwa evaporator kuli pakati pa 5 ndi 6 madigiri;
Tsimikizirani kuti kusiyana kwa kutentha kwa kutentha mu evaporator kuli pakati pa madigiri 0,5 ndi 2;
Ngati zomwe zili pamwambazi sizinakwaniritsidwe, ndipo kutsegula kwa valve yowonjezera yamagetsi ndi yaikulu kuposa 60%, ndipo galasi loyang'ana likuwonetsa thovu, nkhaniyi imachokera ku Refrigeration Encyclopedia, yomwe ingaganizidwe kuti chipangizocho chilibe firiji.Osachulutsa ndi refrigerant, chifukwa izi zipangitsa kuti pakhale kuthamanga kwambiri, kuthira madzi ozizira kwambiri, komanso kuwonongeka kwa kompresa.
G.Onjezerani refrigerant
Kuti mutsimikizire kuti firiji yokwanira yawonjezeredwa, ndikofunikira kuti chipangizocho chiziyenda mosalekeza pansi pa 100% zolemetsa, kuti kutentha kwamadzi ozizira a evaporator ndi madigiri 5-8, ndi kusiyana kwa kutentha pakati pa cholowera. ndi madzi otuluka ndi 5-6 madigiri.Njira yachiweruzo ikhoza kutanthauza izi:
Kutsegula kwa valve yowonjezera kuli pakati pa 40% ndi 60%;
Kusiyana kwa kutentha kwa kutentha kwa evaporator kuli pakati pa 0,5 ndi 2 madigiri;
Onetsetsani kuti chipangizocho chikugwira ntchito pansi pa 100% katundu;.
Onjezani madzi okhala ndi valavu yodzaza madzi pamwamba pa evaporator kapena valavu pansi;
Chigawocho chikayenda mokhazikika, onani kutsegulidwa kwa valve yowonjezera yamagetsi;
Ngati kutsegulidwa kwa valavu yowonjezera yamagetsi ndi 40 ~ 60%, ndipo nthawi zonse pali thovu pagalasi loyang'ana, onjezerani refrigerant yamadzimadzi;
H,kupopera refrigerant
amafuna chidwi!Osagwiritsa ntchito kompresa kupopera refrigerant kuchokera ku evaporator, chifukwa mphamvu ya kuyamwa ikachepera 1kg, imatha kuwononga kompresa.Gwiritsani ntchito chipangizo chopopera cha refrigerant popopera firiji.
(1) Bwezerani zosefera zamafuta zomwe zamangidwa
Chigawochi chikagwira ntchito kwa maola 500 kwa nthawi yoyamba, fyuluta yamafuta ya kompresa iyenera kuyang'aniridwa.Pambuyo pa maola 2000 aliwonse akugwira ntchito, nkhaniyi imachokera ku Refrigeration Encyclopedia, kapena kusiyana kwapakati pakati pa kutsogolo ndi kumbuyo kwa fyuluta yamafuta kumapezeka kupitirira 2.1bar, fyuluta yamafuta iyenera kupasuka ndikufufuzidwa.
(2) Zinthu ziwiri zotsatirazi zikachitika, kutsika kwamafuta kwamafuta kuyenera kuyang'aniridwa:
Compressor imazimitsa chifukwa cha alamu ya 'kusiyana kwakukulu kwamafuta mumayendedwe operekera mafuta';
Compressor imatseka chifukwa cha alarm ya 'Oil level switch disconnected'.
J.Njira yosinthira sefa yamafuta
Zimitsani, tulutsani chosinthira mpweya wa kompresa, tsekani valavu yokonzera zosefera zamafuta, lumikizani payipi kudzera pabowo lokonzera zosefera, tsitsani mafuta musefa yamafuta, tsegulani pulagi yosefera yamafuta, ndikutulutsa sefa yakale yamafuta. , mphete ya 'O' yonyowa ndi mafuta, ikani zosefera zatsopano, sinthani pulagi yatsopano, m'malo mwake fyuluta yowonjezera yamafuta (zosefera zakunja zamafuta), tsitsani zosefera zamafuta kudzera pa doko la sefa ndikuthandizira mpweya muzosefera zamafuta, tsegulani sefa yamafuta. valavu.
K,masiwichi amafuta achotsedwa
Ngati chigawocho chikuwopsyeza mobwerezabwereza chifukwa kusintha kwa mlingo wa mafuta kumachotsedwa, zikutanthauza kuti mafuta olekanitsa mafuta ndi osakwanira ndipo mafuta ambiri ali mu evaporator.Ngati chosinthira chamafuta chimatsekedwa nthawi zonse, gwiritsani ntchito mpope wamafuta kuti muwonjezere malita opitilira awiri amafuta ku cholekanitsa mafuta, osawonjezera mafuta pamalo ena aliwonse, tsimikizirani kuti chosinthira chamafuta chatsekedwa, yambitsaninso gawolo, ndikuyendetsa. pa 100% katundu kwa ola osachepera 1 pansi zinthu zabwinobwino.
L.Kuthamanga mafuta
Zifukwa zogwiritsira ntchito mafuta: kutsika kwa kutentha kwapamwamba kwambiri kumapangitsa kuti mafuta azisiyanitsidwa bwino, ndipo kutentha kwa kutentha kwa unit kumakhala kochepa kwambiri (kutentha kwa madzi ozizira kumakhala kochepa), zomwe zimapangitsa kusiyana kwa kuthamanga kwa mafuta, zomwe zimapangitsa kuti mafuta azikhala ovuta.Ikani valavu yanjira zitatu papaipi yamadzi ya condenser, ndikusintha magawo a PID a wowongolera valavu yanjira zitatu moyenera kuti mupewe kuwongolera.
Pamene mafuta owonjezera alowa mu evaporator ndikusakaniza ndi firiji, chithovu chochuluka chidzapangidwa.Dongosolo lowongolera lizitha kuzindikira izi ndikuyankha molondola.Pamene thovu lipangidwa, kusiyana kwa kutentha kwa kutentha mu evaporator kumawonjezeka ndikukula.Valavu idzatsegula kwambiri, kulola kuti firiji yowonjezereka ilowe mu evaporator, kuwonjezera mlingo wa refrigerant, kotero kuti mafuta amayamwa ndi compressor ndikubwerera ku mafuta.
Nthawi yotumiza: Jul-14-2022
