Title:
空気調和装置
Document Type and Number:
Japanese Patent JP5762427
Kind Code:
B2
Abstract:
To provide an air-conditioning apparatus that implements a countermeasure against freezing of a heat medium and that improves safety. An air-conditioning apparatus 100 uses a zeotropic refrigerant mixture, in which its saturated liquid refrigerant temperature is lower than the saturated gas refrigerant temperature under the same pressure condition, as the heat source side refrigerant. When one or some of a plurality of heat exchangers related to heat medium 15 functions as an evaporator, the air-conditioning apparatus 100 executes an anti-freezing control that prevents the heat medium from freezing by estimating occurrence of freezing of the heat medium on the basis of a value obtained by subtracting a freezing temperature correction value that is set as a positive value larger than zero from an evaporating temperature of the refrigerant in the heat exchanger related to heat medium 15.
Inventors:
Koji Yamashita
Application Number:
JP2012538473A
Publication Date:
August 12, 2015
Filing Date:
October 12, 2010
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B1/00; F24F5/00; F25B49/02
Domestic Patent References:
| JPH06337176A | 1994-12-06 | |||
| JPH08313079A | 1996-11-29 | |||
| JPH11304263A | 1999-11-05 | |||
| JP2004286407A | 2004-10-14 | |||
| JP2000161797A | 2000-06-16 | |||
| JP2009300021A | 2009-12-24 | |||
| JPH06337176A | 1994-12-06 | |||
| JP2004286407A | 2004-10-14 | |||
| JP2000161797A | 2000-06-16 | |||
| JPH08313079A | 1996-11-29 | |||
| JPH11304263A | 1999-11-05 | |||
| JP2009300021A | 2009-12-24 |
Foreign References:
| WO2010050003A1 | 2010-05-06 | |||
| WO2010128553A1 | 2010-11-11 | |||
| WO2010050003A1 | 2010-05-06 | |||
| WO2010128553A1 | 2010-11-11 |
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Takanashi Norio
Motoki Shandong
Taku Ogawa
Murata Kensei
Moto Otani
Kiyoshi Yasushima
Takanashi Norio
Motoki Shandong
Taku Ogawa
Murata Kensei
Moto Otani