Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/008130
Kind Code:
A1
Abstract:
This air conditioning device has: a plurality of heat-source-side units including a compressor and a heat-source-side heat exchanger; a load-side heat exchanger and a load-side throttle device; a first header for branching the connection destination of the load-side heat exchanger to the plurality of compressors; a second header for branching the connection destination of the load-side throttle device to a plurality of the heat-source-side heat exchangers; a plurality of bypass throttle devices provided between the plurality of heat-source-side heat exchangers and the second header; a plurality of circuit switching parts for connecting the heat-source-side heat exchangers to the intake side or the discharge side of the compressors; a plurality of discharge pressure sensors provided on the discharge side of the plurality of compressors; a plurality of bypass pressure sensors provided between the plurality of bypass throttle devices and the second header; and a controller for controlling, in a heat-source-side unit to be defrosted, the circuit switching part to cause some of the refrigerant discharged from the compressor to flow into the heat-source-side heat exchanger, and adjusting the opening degree of the bypass throttle device so that the difference between the value from the discharge pressure sensor and the value from the bypass pressure sensor becomes equal to or greater than a predetermined value.
More Like This:
| JP4661908 | Heat pump unit and heat pump water heater |
| JPS6361852 | EVAPORATOR FOR REFRIGERATOR |
| WO/2017/122686 | REFRIGERATION DEVICE |
Inventors:
ARIYAMA TADASHI (JP)
Application Number:
PCT/JP2016/070174
Publication Date:
January 11, 2018
Filing Date:
July 07, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B47/02
Domestic Patent References:
| WO2016046876A1 | 2016-03-31 | |||
| WO2016098195A1 | 2016-06-23 |
Foreign References:
| JP2014126310A | 2014-07-07 | |||
| JP2011257108A | 2011-12-22 | |||
| JP2010101570A | 2010-05-06 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Download PDF: