Posachedwapa, zikwama zamakwerero-mafiriji anali mitundu yambiri yokongola kwambiri. Lero mungathe kunyamula chikwama cha firiji chosakanikirana chomwe sichidzakhala cholemetsa komanso chophweka mosavuta.
Kodi matumba a firiji ndi otani?
Ndipotu, dzina lakuti "firiji" silolondola kwenikweni kwa zinthu zoterezi. Kulankhula molondola, thumba limatchedwa isothermal. Palinso thermosets, komabe, ichi ndi chinthu chosiyana kwambiri ntchito. Thumba la thermo limagwira ntchito pamtundu wamba thermos - chifukwa chakuwonekera mkati mkati mwake kudzakhala kutentha kwa nthawi ndithu.
Chikwama chosungira chimapangitsa kutentha ndi kuzizira komweko, ndiyeno kwa maola 24 okha. Pambuyo pake, kutentha mkati kumakhala kofanana ndi kutentha kwapakati.
Komabe, popeza dzina lakuti "thumba lozizira" limamveka bwino komanso limadziwika, limagwiritsidwa ntchito nthawi zambiri. Chinthu chachikulu ndicho kudziwa kusiyana.
Kodi mungagwiritse ntchito bwanji thumba la firiji?
Batireli yosungirako ozizira nthawi zambiri ndi chidebe cha pulasitiki chodzaza ndi mankhwala apadera a saline. Asanagwiritse ntchito, iyenera kuyikidwa mufiriji kwa maola 9-12. Chonde dziwani kuti ngati ilidi thumba loziziritsa, osati botolo la thermos , ndiye kuti batani ayenera kusungidwa.
Momwemo, udindo wawo ukhoza kusewera ndi botolo wamba la madzi amchere. Iyenso iyenera kuchitikira mufiriji musanagwiritse ntchito.
Miyeso ya matumba oyendera-firiji:
- Matumba ang'onoang'ono a firiji amayamba kuchokera pafupifupi pafupifupi malita 3.5. Izi zingakhale zabwino kwambiri osati kwa inu nokha, komanso kwa mwana wanu. Zikuwoneka ngati thumba, chikwama kapena bokosi laling'ono la msasa. Ganizirani zitsanzo zazing'ono kwambiri - 200 magalamu. Zithunzi zazikulu, 7-9 malita, zidzakhala zolemetsa, koma osati zambiri - mpaka 450 magalamu. Kupatula kumapangidwa ndi matumba apulasitiki. Kulemera kwawo kumayamba kuchokera ku 1 makilogalamu.
- Matumba akulu a firiji akhoza kufika pafupifupi 100 malita. Posankha chitsanzochi, taganizirani kuti 1 batire yosungirako batiri amawerengeka pafupifupi 3 malita. Matumba akulu a firiji ndi oyenera kuyendetsa galimoto.
Kuti mudziwe kuti chikwama chozizira chili bwino - tcherani makalata angapo:
- ubwino wa zinthu zomwe thumba limapangidwa;
- zomwe mkati mwake gasket amapangidwa (payenera kukhala PVC yowonongeka ndi ziwonetsero, osati posavuta poly-ethylene);
- kukhalapo kwa zikwama zina ndi zofewa zosavuta pazogwira;
- kukhalapo kwa mbale, mbale ndi ziwiya zofanana.
| | | |
| | | |
| | | |
