Title:
アイスリンクの冷却設備
Document Type and Number:
Japanese Patent JP5237457
Kind Code:
B2
Abstract:
An ice rink cooling facility 100 in which a cooling-pipe bank 1 having a plurality of cooling pipes 11 is arranged at the bottom part of the ice rink 10 and CO2 brine streams through the cooling pipe bank 1 so as to cool the ice rink 10, the ice rink cooling facility 100 including, but not limited to: at least one planar heat conduction member that is arranged on and over the cooling pipes 11; a CO2 circulation circuit 3 that is connected to the cooling pipes 11 so that the CO2 brine circulates in the CO2 circulation circuit 3; an ammonia refrigerating cycle in which an ammonia refrigerant circulates; and, a cascade condenser 211 in which the heat exchange is performed between the CO2 brine and the ammonia refrigerant so that the CO2 brine is cooled and re-liquefied by use of the ammonia refrigerant.
Inventors:
Fukuoka Minori
Yoshiaki Tanaka
Yoshiaki Tanaka
Application Number:
JP2011529405A
Publication Date:
July 17, 2013
Filing Date:
December 28, 2010
Export Citation:
Assignee:
Maekawa Manufacturing Co., Ltd.
International Classes:
F25C3/02; F25B1/00; F25B7/00; F25B39/02; F28F1/02; F28F1/12; F28F1/22
Domestic Patent References:
| JP2008304148A | 2008-12-18 | |||
| JPS5021320A | 1975-03-06 | |||
| JP2005140444A | 2005-06-02 | |||
| JP2000274848A | 2000-10-06 | |||
| JPH06337188A | 1994-12-06 | |||
| JPH10110993A | 1998-04-28 |
Foreign References:
| US3307342A | 1967-03-07 | |||
| DE1256664B | 1967-12-21 |
Attorney, Agent or Firm:
Patent business corporation Takahashi Matsumoto & Partners