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1. (WO2017038055) FREEZER DEVICE FOR CONTAINERS

Pub. No.:    WO/2017/038055    International Application No.:    PCT/JP2016/003862
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Aug 25 01:59:59 CEST 2016
IPC: F25D 23/00
A01F 25/00
F25D 11/00
F25D 17/08
A23L 3/36
Applicants: DAIKIN INDUSTRIES, LTD.
ダイキン工業株式会社
Inventors: KAMEI, Noritaka
亀井 紀考
FUJIMOTO, Yuusuke
藤本 祐介
IKEMIYA, Makoto
池宮 完
Title: FREEZER DEVICE FOR CONTAINERS
Abstract:
A gas supply device that reduces the oxygen concentration of an internal space by supplying nitrogen-enriched air to the internal space of a container. The gas supply device stops when the oxygen concentration in the internal space gradually reduces and reaches a reference concentration C2. When external air penetrates into the internal space from a gap between the container and a container freezer device, the oxygen concentration in the internal space subsequently increases. When the oxygen concentration in the internal space increases and reaches an upper limit concentration C3, an internal fan control unit switches the rotation speed of an internal fan from "high speed" to "low speed" and starts the gas supply device. As a result, the amount of external air penetrating the internal space can be reduced and the oxygen concentration of the internal air can be reliably reduced.