Title:
HEAT EXCHANGE UNIT
Document Type and Number:
WIPO Patent Application WO/2020/067038
Kind Code:
A1
Abstract:
Provided is a heat exchange unit utilizing a flammable refrigerant, which is configured so that the possibility of ignition caused by electrical equipment as an ignition source within the casing of the heat exchange unit can be reduced even if the refrigerant leaks. A heat exchange unit (100) exchanges heat between a flammable refrigerant and a liquid medium which is delivered to a utilization-side facility (410), thereby cooling and/or heating the liquid medium. The heat exchange unit (100) is provided with a utilization-side heat exchanger (10), electrical components (20, 61, 93) which can be ignition sources, a casing, and a gas detection sensor. In the utilization-side heat exchanger, heat is exchanged between the refrigerant and the liquid medium. The casing houses the utilization-side heat exchanger and the electrical components which can be ignition sources. The gas detection sensor has a detection element (72) disposed below the electrical components which can be ignition sources, and detects whether or not a refrigerant gas is present in a place where the detection element is disposed.
Inventors:
KOBAYASHI TOSHIYUKI
MOMONO TOSHIYUKI
MOMONO TOSHIYUKI
Application Number:
PCT/JP2019/037318
Publication Date:
April 02, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B49/02; F24F1/22; F25B1/00
Domestic Patent References:
| WO2013145014A1 | 2013-10-03 | |||
| WO2014097440A1 | 2014-06-26 |
Foreign References:
| JP2016191504A | 2016-11-10 | |||
| JP2013064538A | 2013-04-11 | |||
| JP2016191505A | 2016-11-10 |
Other References:
See also references of EP 3859248A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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