+/-5 ndi -25℃ Mafiriji akuluakulu ndi apakatikati

Mafiriji akuluakulu ndi apakatikati angagwiritsidwe ntchito m'makampani ogulitsa chakudya, mafakitale a mkaka, malo osungiramo masamba ndi zipatso, malo osungiramo mazira, asilikali, ndi zina zotero. Chinsinsi chosungiramo chakudya chozizira ndi kusunga zinthu za mkaka, nyama, nsomba, nkhuku, ndiwo zamasamba ndi zipatso, chakudya chozizira, maluwa oikidwa m'miphika, zomera zobiriwira, masamba a tiyi ndi zakudya zina zomwe zimasungidwa kutentha koyenera.

Poika malo osungiramo zinthu zozizira akuluakulu ndi apakatikati, mayunitsi oziziritsira amagwiritsidwa ntchito kuziziritsa, pogwiritsa ntchito madzi okhala ndi kutentha kochepa kwambiri kwa nthunzi ngati madzi ozizira kuti azitha kuzizira motsatira muyezo wa kuthamanga kwa pansi ndi magwiridwe antchito a zida zamakina, kugaya ndi kuyamwa kutentha komwe kumapangidwa mu malo osungiramo, kenako kupitirira madzi. Cholinga choziziritsira kwambiri ndi firiji yamtundu wa shrink, yomwe imapangidwa ndi compressor yoziziritsira, choziziritsira, ndi chubu chozizira.

Malinga ndi njira ya zida za chubu chosinthira kutentha, zimagawidwa m'mitundu iwiri: kuziziritsa madzi mwachangu komanso kuziziritsa madzi mosavuta. Ikani chubu chosinthira kutentha m'chipinda chosungiramo chozizira kuti madzi aziziritse mwachangu. Choziziritsira madzi chikadutsa mu chubu chosinthira kutentha pansi, chimagaya nthawi yomweyo ndikuyamwa kutentha komwe kumapangidwa m'nyumba yosungiramo zinthu kuti chichepetse kutentha. Mu kuziziritsa madzi kosavuta, injini yopumira imayamwa mpweya womwe uli m'nyumba yosungiramo zinthu kuti ulowe mu chipangizo choziziritsira kutentha. Mpweya ukafalikira mu chubu chosinthira kutentha chomwe chili mu chipangizo choziziritsira madzi, umatumizidwa ku nyumba yosungiramo zinthu kuti uchepetse kutentha. Ubwino wa njira yoziziritsira kutentha ndikuti madzi amazizira mwachangu ndipo kutentha kwa malo osungiramo zinthu kumakhala kofanana. Pamodzi, imatha kuchita zinthu zoopsa monga CO2 zomwe zimachitika chifukwa cha njira yonse yosungiramo zinthu.

Malo osungiramo zinthu zozizira akuluakulu ndi apakatikati amagawidwa m'magulu a L, Q, ndi J. Mitundu ingapo ya kutentha komwe kumagwiritsidwa ntchito kwambiri ndi 5--5C, -10 -18c, -20--23C, ndipo malo osungiramo zinthu zozizira apadera amafika pansi pa -30C. Zosowa zosiyanasiyana zitha kuganiziridwa. Ndi malo abwino kwambiri osungiramo zinthu zozizira zosungiramo nyama, zinthu zam'madzi, mazira, mkaka, zipatso zatsopano, ndiwo zamasamba ndi zipatso, ndi zina zotero. Nthawi zambiri amagwiritsidwa ntchito ku mabanki akuluakulu ndi mayunitsi. Ndi abwino kwa chilengedwe komanso amasunga mphamvu, ndipo firiji ili ndi mphamvu yoteteza kutentha kwambiri. Imatha kupanga mitundu yosiyanasiyana ya mafiriji kuti ipereke zosankha, zomwe ndi zosavuta kwa makasitomala kugwiritsa ntchito malo omwe alipo komanso malo amkati mosavuta.

Kodi mungasankhe bwanji zida zosungiramo zinthu zoziziritsa kukhosi zomwe zimasungidwa m'malo ozizira kwambiri?

Palinso mitundu yambiri ya mafiriji. Mafiriji ambiri m'malo osungiramo zinthu zozizira kwambiri amakonda kugwiritsa ntchito mafiriji ofanana. Kodi ubwino wake ndi wotani?

1. Makina oziziritsira a Bitzer otchuka padziko lonse lapansi ali ndi khalidwe lokhazikika komanso phokoso lochepa poyerekeza ndi zinthu zina zofanana.

2. Kudalirika kwa ntchito kumakhala kwakukulu. Ngakhale compressor iliyonse yoziziritsira italephera, sizingakhudze momwe makina onse oziziritsira amagwirira ntchito.

3. Pali mitundu yambiri ya mphamvu yozizira. Kugula kwakukulu kosungirako zozizira pa kutentha kochepa kapena kusinthasintha kwa kutentha kwa mlengalenga nthawi zina kungakhale kwakukulu, ndipo mayunitsi ofanana amatha kupeza chiŵerengero chabwino cha mphamvu yozizira.

4. Kompresa imodzi mu chipangizocho ili ndi mphamvu yocheperako yogwira ntchito ya 25%, ndipo ikhoza kusinthidwa kuti ikhale ndi mphamvu ya 50%, 75%, ndi 100%, yomwe ingafanane ndi mphamvu yozizira yomwe ikufunika pakugwira ntchito pano kwambiri, ndipo imagwira ntchito bwino komanso yosunga mphamvu.

5. Compressor ili ndi kapangidwe kosavuta komanso kakang'ono, mphamvu yopondereza kwambiri komanso magwiridwe antchito ambiri mufiriji.

6. Mapaipi ndi ma valve ofanana amayikidwa pakati pa machitidwe awiriwa odziyimira pawokha. Pamene chipangizo choziziritsira ndi zida zomwe zili pa condenser zalephera, makina ena amatha kugwira ntchito yake yoyambira.

7. Kuwongolera kwa gawoli ndi ntchito yapamwamba ya PLC yamagetsi komanso yowonetsera