Air conditioning uyekutonhora kuchengetedzakumanikidza kuchengetedza kushanda uye kudzivirira.
The refrigeration systemigadziriro yakavharwa. Kusimba kwemhepo yefiriji system mushure mekugadzirisa kunofanirwa kunyatsotariswa kuti ive nechokwadi chekuchengetedza mhando, kuvandudza kuvimbika kwekushanda, kuderedza kurasikirwa kwefiriji, uye kugadzirisa hupfumi hwekushanda. Iyo refrigerant inopenya zvakanyanya. Saka, zvinodikanwa kutarisa kusimba kwemhepo yefiriji system.
Zvinofanira kucherechedzwa kuti nitrogen gasi inofanira kushandiswa kuchengetedza kumanikidzwa mufiriji system. Oxygen igasi rinobvira moto. Kana okisijeni ikashandiswa kuchengetedza kudzvanywa, inogona kukonzera moto kana kuputika!
- Kudzvinyirira kuchengetedza kushanda kwediki uye nepakati kutonhora kuchengetedza:
Inokurudzirwa kumanikidza mativi ese egasi uye mvura panguva imwe chete. Kutanga, batanidza gauji yekumanikidza kune yakawanda-chinangwa chiteshi chepamusoro uye yakaderera kuvharika kwevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavha uye yakaderera, uye bvisa zvikamu zviri muhurongwa hwepakutanga izvo zvisingafanirwe kuiswa pasi pekumanikidzwa kwakanyanya, senge evaporation pressure inodzora vharafu uye zvimwe zvikamu.
Kutora R22 refrigerant semuenzaniso, kana iyo low pressure pressure iri 1.2MPa, iyo nitrogen kuchaja inomiswa. Mushure mokunge muedzo wechikamu chepasi wapera, muedzo wekumanikidzika wehutano hwepamusoro unoitwa. Mushure meiyo yakanyanya kudzvanywa system kudzvanywa kwakawedzera kusvika 2.5MPa, kubhadharisa nitrogen kunomiswa. Chengetedza kumanikidzwa kwe24 ~ 48h.
| Refrigeration system | R134a | R22 | R401A, R402A,R404A,R407A,R407B,R407C,R507 |
| Low press system | 1.2 | 1.2 | 1.2 |
| High tembiricha system | 2.0 | 2.5 | 3.0 |
Zvekungwaririra:
Mumaawa mana ekutanga ehurongwa, geji yekumanikidza kudonha haipfuure 0.03MPa, uye yobva yaramba yakagadzikana (panguva yekuyedzwa, kudonha kwekumanikidza nekuda kwekushanduka kwetembiricha kazhinji hakupfuure gauge pressure ye0.01 ~ 0.03MPa), uye firiji system inogona kutariswa kunge inokodzera kuyedzwa kwekuvuza.
2. Multi-line system pressure kuchengetedza kushanda
Iyo yakawanda-yekubatanidza inofanira kumanikidzwa kubva kumativi maviri epombi yegesi uye pombi yemvura panguva imwe chete, nokuti kumanikidzwa kumativi ose egasi uye mvura kunogona kuchengetedza zvikamu zvevharuvhu zvakadai sevhavha yekuwedzera yemagetsi padivi remukati remukati we-multi-connector system kubva pakukuvadzwa. Dry nitrogen inofanira kushandiswa kuyedza kusimba kwemhepo. ita svikiro.
Munguva yekuedzwa kwemhepo, hazvibvumirwe kubatanidza bvunzo dzepombi yemuchina wekunze. The test pressure yeR410A system ndeye 4.0MPa, air tightness test inofanira kushandisa nitrogen sepakati, uye nitrogen inofanira kunge yakaoma. Dzvinyirira zvishoma nezvishoma, mumatanho matatu:
| Press | Nguva | Function |
| 0.3MPa | >5 mins | Kudonha kukuru kunogona kuwanikwa |
| 1.5MPa | >5 mins | Kudonha kukuru kunogona kuwanikwa |
| 4.0MPa | 24h | Diki kudonha kunogona kuwanikwa |
1. Shingairira ku 0.3MPa, gara kwemaminetsi mashanu kuti uongorore kubuda, uye unogona kuwana kuvuza kukuru;
2. Shingairira ku1.5MPa, gara kwemaminetsi mashanu kuti utarise kusimba kwemhepo, uye uwane kudonha kudiki;
3. Shingairira ku4.0MPa, gara kwemaminitsi mashanu kuti uedze simba, uye mablister akanaka anogona kuwanikwa.
Mushure mekumanikidzira kumanikidziro ekuedzwa, chengetedza kumanikidzika kwemaawa makumi maviri nemana, uye cherechedza kana simba racho richidonha. Kana dzvinyiriro isingadonhe, inokodzera.
R410A system test pressure gauge range inofanirwa kunge iri pamusoro pe4.5MPa
Zvekungwaririra:
Kugadziriswa kwekudzvanya: Kana tembiricha yachinja ne1 ° C, kudzvanywa kunochinja zvinoenderana ne0.01MPa. Kana dzvinyiriro ichida kuchengetedzwa kwenguva yakareba, kudzvanywa kunofanirwa kudzikiswa kusvika ku0.5MPa kana pasi. Kureba kwenguva refu kudzvinyirira kunogona kutungamira mukudonha kwezvikamu zvewelding, uye kune njodzi dzinogona kuitika;
The pressure after pressure holding inobatwa ne ambient tembiricha. Sezvo tembiricha ichikwira, kumanikidza kunowedzerawo, uye sezvo tembiricha inodonha, tembiricha inodonhawo. Kana tembiricha yakadzikama yaive 10°C pakachengetwa dzvinyiriro nezuro, uye tembiricha yakaerekana yakwira kusvika pa25°C nhasi, zvino Kana tembiricha iri 15°C, geji yekumanikidza inodonha, uye zvakajairika kuti geji iite 38.4kgf/cm².
Amushure mekunge iyo nitrogen pressure test yakwana, vacuum omesa sisitimu. Batanidza vacuum gauge uye mhanyisa pombi yevacuum kweanopfuura maawa maviri. Kana isingasvike -755mmHg, ramba uchipomba kweawa imwe chete. Mushure mekusvika -755mmHg, inogona kuiswa kweawa imwe, uye inokodzera kana vacuum geji ikasasimuka.
Nguva yekutumira: Jun-10-2022