Kwandishan daajiya mai sanyiaiki kula da matsa lamba da kuma taka tsantsan.
A rtsarin sanyitsari ne da aka rufe. Dole ne a bincika sosai don tabbatar da ingancin kulawa, inganta amincin aiki, rage asarar refrigerate, da inganta tattalin arzikin aiki. Refrigerant yana da ƙarfi sosai. Sabili da haka, wajibi ne don duba yanayin iska na tsarin firiji.
Ya kamata a lura cewa dole ne a yi amfani da iskar nitrogen don kula da matsa lamba a cikin tsarin firiji. Oxygen iskar gas ce mai ƙonewa. Idan ana amfani da iskar oxygen don kula da matsa lamba, yana iya haifar da wuta ko fashewa!
- Ayyukan kiyaye matsi na ƙanana da matsakaicin ajiyar sanyi:
Ana bada shawara don matsawa bangarorin biyu na gas da ruwa a lokaci guda. Da farko, haɗa ma'aunin ma'aunin matsa lamba zuwa tashar maƙasudi da yawa na bawul ɗin rufewa mai girma da ƙarancin matsa lamba, kuma cire abubuwan da ke cikin tsarin asali waɗanda bai kamata a yi matsananciyar matsananciyar matsa lamba ba, irin su matsa lamba mai daidaita bawul da sauran abubuwan haɗin gwiwa.
Ɗaukar refrigerant R22 a matsayin misali, lokacin da ƙananan matsa lamba shine 1.2MPa, ana dakatar da cajin nitrogen. Bayan an kammala gwajin sashin ƙananan matsa lamba, ana aiwatar da gwajin matsa lamba na tsarin matsa lamba. Bayan babban matsin tsarin matsin lamba ya karu zuwa 2.5MPa, ana dakatar da cajin nitrogen. Ci gaba da matsa lamba don 24 ~ 48h.
| Tsarin firiji | R134 a | R22 | R401A, R402A, R404A, R407A, R407B, R407C, R507 |
| Ƙananan tsarin latsawa | 1.2 | 1.2 | 1.2 |
| Tsarin zafin jiki mai girma | 2.0 | 2.5 | 3.0 |
Matakan kariya:
A cikin sa'o'i 4 na farko na tsarin, ma'aunin ma'auni na matsa lamba bai wuce 0.03MPa ba, sa'an nan kuma ya ci gaba da kasancewa mai ƙarfi (a lokacin gwajin gwajin, raguwar matsa lamba saboda canjin zafin jiki gabaɗaya baya wuce ma'aunin ma'auni na 0.01 ~ 0.03MPa), kuma ana iya la'akari da tsarin firiji don cancantar gwajin jini.
2. Multi-line tsarin matsa lamba rike aiki
Dole ne a matsa lamba mai yawa daga bangarorin biyu na bututun iskar gas da bututun ruwa a lokaci guda, saboda matsa lamba a bangarorin biyu na gas da ruwa na iya kare sassan bawul kamar bawul ɗin faɗaɗa lantarki a gefen ɓangaren cikin gida na tsarin mai haɗawa da yawa daga lalacewa. Dole ne a yi amfani da busasshen nitrogen don gwajin matsewar iska. yi matsakaici.
Yayin gwajin matsananciyar iska, ba a ba da izinin haɗa gwajin bututun na'urar waje ba. Matsin gwajin tsarin R410A shine 4.0MPa, gwajin ƙarfin iska dole ne yayi amfani da nitrogen azaman matsakaici, kuma nitrogen dole ne ya bushe. Matsa a hankali, cikin matakai uku:
| Latsa | Lokaci | Aiki |
| 0.3MPa | >5 min | Ana iya samun manyan ɗigogi |
| 1.5MPa | >5 min | Ana iya samun manyan ɗigogi |
| 4.0MPa | 24h ku | Karami ana iya samun leaks |
1. Matsawa zuwa 0.3MPa, tsaya na tsawon mintuna 5 don duba ɗigogi, kuma yana iya samun ɗigo mai yawa;
2. Matsawa zuwa 1.5MPa, tsaya na tsawon mintuna 5 don duba matsewar iska, kuma sami ƙaramin yabo;
3. Matsawa zuwa 4.0MPa, tsaya na tsawon mintuna 5 don gwajin ƙarfin, kuma ana iya samun blisters masu kyau.
Bayan danna matsin gwajin, ci gaba da matsa lamba na tsawon awanni 24, kuma duba ko matsin ya faɗi. Idan matsi bai ragu ba, ya cancanta.
R410A tsarin gwajin ma'aunin ma'auni yakamata ya kasance sama da 4.5MPa
Matakan kariya:
Gyaran matsi: Lokacin da zafin jiki ya canza da 1°C, matsa lamba yana canzawa daidai da 0.01MPa. Idan ana buƙatar kiyaye matsa lamba na dogon lokaci, matsa lamba ya kamata a rage zuwa 0.5MPa ko ƙasa. Babban matsin lamba na dogon lokaci na iya haifar da zubar da sassan walda, kuma akwai haɗarin aminci;
Matsin lamba bayan riƙe matsi yana shafar yanayin yanayin. Yayin da zafin jiki ya tashi, matsa lamba kuma zai tashi, kuma yayin da zafin jiki ya fadi, yanayin kuma zai ragu. Idan yanayin yanayi ya kasance 10 ° C lokacin da aka kiyaye matsa lamba a jiya, kuma zafin jiki ya tashi ba zato ba tsammani zuwa 25 ° C a yau, to Idan zafin jiki ya kasance 15 ° C, ma'aunin matsa lamba zai ragu, kuma al'ada ne don matsa lamba ya zama 38.4kgf/cm².
Abayan gwajin matsi na nitrogen ya cancanta, bushe da tsarin. Haɗa ma'aunin injin kuma kunna injin famfo na sama da awanni 2. Idan ba zai iya kaiwa -755mmHg ba, ci gaba da yin famfo na awa 1. Bayan kai -755mmHg, ana iya sanya shi na awa 1, kuma yana da cancanta idan ma'aunin injin bai tashi ba.
Lokacin aikawa: Juni-10-2022