Title:
REFRIGERATING DEVICE
Document Type and Number:
Japanese Patent JP2018138866
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating device that can speed up start-up of defrosting operation without increasing a load on refrigerating operation.SOLUTION: In a refrigerating device, a load cooler, a compressor, heat accumulator, a condenser, a liquid receiver, and an expansion valve are connected in this order by refrigerant pipes to constitute a cooling circuit inside which a cooling refrigerant flows. A defrosting circuit inside which a defrosting heat medium flows comprises a heat absorbing part that absorbs heat from a heat accumulating agent in the heat accumulator, and a defrosting part that dissipates heat in the load cooler. The cooling circuit comprises a heat dissipating part that dissipates heat to the heat accumulating agent in the heat accumulator, and a cooling part that cools a load fluid in the load cooler. The heat accumulator is installed at a lower level than the load cooler, and provided with a defrosting outward passage in which the defrosting heat medium heated by the heat absorbing part flows from the heat accumulator toward the load cooler, and a defrosting return passage in which the defrosting heat medium cooled by dissipating heat to the defrosting part flows from the load cooler toward the heat accumulator.SELECTED DRAWING: Figure 1
Inventors:
NINOMIYA TATSU
MIZOGUCHI KAZUNORI
MIZOGUCHI KAZUNORI
Application Number:
JP2018065680A
Publication Date:
September 06, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
MITSUBISHI HEAVY IND AIR CONDITIONING & REFRIGERATION CORP
International Classes:
F25B47/02; F25B1/00; F25B39/02
Domestic Patent References:
| JPS5565866A | 1980-05-17 | |||
| JPS61156869U | 1986-09-29 |
Foreign References:
| WO2015093234A1 | 2015-06-25 |
Attorney, Agent or Firm:
Kiyoshi Oka