Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2013/027233
Kind Code:
A1
Abstract:
An air conditioner having multiple inter-heating-medium heat exchangers that perform the same function (that of a condenser or evaporator), with heat being exchanged between a refrigerant which is heated or cooled in a refrigeration cycle circuit on the heat source side and a heating medium flowing in a heating medium circulation circuit on the usage side by means of the inter-heating-medium heat exchangers (31), and the heat energy generated on the heat source side being transferred to usage-side heat exchangers (35), wherein a control device (202) calculates a heating medium temperature difference ∆Tw for the usage-side heat exchanger (35) which is operating, which is the difference between the heating medium inlet temperature Twi and the heating medium inlet temperature Two of the usage-side heat exchanger (35), and controls heating medium flow volume adjustment devices (45) such that the heating medium temperature difference ∆Tw matches a target heating medium temperature difference value ∆Twm. When the heating medium inlet temperature Twi is outside of a prescribed range, the control device changes the target heating medium temperature difference value ∆Twm and controls at least one of the heating medium flow volume adjustment devices (45) of the usage-side heat exchanger (35) which is operating.
Inventors:
TAKAYAMA KEISUKE (JP)
AZUMA KOJI (JP)
MOTOMURA YUJI (JP)
AZUMA KOJI (JP)
MOTOMURA YUJI (JP)
Application Number:
PCT/JP2011/004639
Publication Date:
February 28, 2013
Filing Date:
August 19, 2011
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
TAKAYAMA KEISUKE (JP)
AZUMA KOJI (JP)
MOTOMURA YUJI (JP)
TAKAYAMA KEISUKE (JP)
AZUMA KOJI (JP)
MOTOMURA YUJI (JP)
International Classes:
F25B1/00; F24F11/02
Domestic Patent References:
| WO2011052040A1 | 2011-05-05 | |||
| WO2010113296A1 | 2010-10-07 | |||
| WO2011064814A1 | 2011-06-03 |
Foreign References:
| JP2010196950A | 2010-09-09 | |||
| JP2004060956A | 2004-02-26 | |||
| JPH0571770A | 1993-03-23 | |||
| JP2005069554A | 2005-03-17 |
Other References:
See also references of EP 2746700A4
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (JP)
Hisao Kobayashi (JP)
Hisao Kobayashi (JP)
Download PDF:
Claims:
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