Title:
FREEZER AND OPERATION METHOD OF FREEZER
Document Type and Number:
Japanese Patent JP2017067383
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce burden on a user for maintenance of a freezer in which a refrigerant circuit is filled with combustible refrigerant.SOLUTION: A freezer 10 includes a refrigerant circuit 20 provided with a condenser 31, an evaporator 33 and the like, and a refrigerant tank 55 storing refrigerant for replenishment. In an initial state, the refrigerant circuit 20 is filled with combustible refrigerant, and the refrigerant tank 55 is filled with incombustible refrigerant. When refrigerant leaks from the refrigerant circuit 20, a refrigeration replenishment valve 57 is opened to replenish incombustible refrigerant of the refrigerant tank 55 to the refrigerant circuit 20, and operation of the freezer 10 is continued.SELECTED DRAWING: Figure 3
Inventors:
TANAKA NAOHIRO
SAKAE SATORU
SAKAE SATORU
Application Number:
JP2015194605A
Publication Date:
April 06, 2017
Filing Date:
September 30, 2015
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B45/00; F25B1/00
Domestic Patent References:
| JPS5272962A | 1977-06-18 | |||
| JP2004116885A | 2004-04-15 | |||
| JPS5257636A | 1977-05-12 | |||
| JP2013036707A | 2013-02-21 |
Attorney, Agent or Firm:
Maeda patent office