Title:
HEAT SOURCE UNIT AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/075358
Kind Code:
A1
Abstract:
Provided is a heat source unit whereby the diameter of pipes that supply cooling refrigerant to be guided into an intake side of a compressor can be reduced. A chiller (1) comprises: a compressor (3) that compresses refrigerant; a water heat exchanger (5) that exchanges heat between the refrigerant and water; a first expansion valve (6) that expands the refrigerant; an air heat exchanger (9) that exchanges heat between the refrigerant and air; and a fluid bypass pipe (20) that has an upstream end thereof connected to between the water heat exchanger (5) and the first expansion valve (6) and guides the fluid refrigerant to the intake side of the compressor (3). A second expansion valve (8) is provided on the air heat exchanger (9) side and a receiver (7) is provided between the first expansion valve (6) and a second expansion valve (8).
Inventors:
TERAOKA MASAHIRO (JP)
Application Number:
PCT/JP2021/036974
Publication Date:
April 14, 2022
Filing Date:
October 06, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
F25B43/00; F25B1/00
Domestic Patent References:
| WO2017037771A1 | 2017-03-09 | |||
| WO2018185841A1 | 2018-10-11 |
Foreign References:
| JP2001066000A | 2001-03-16 | |||
| JP2011094810A | 2011-05-12 | |||
| JP2019210867A | 2019-12-12 | |||
| JP2014119147A | 2014-06-30 | |||
| JP6005255B2 | 2016-10-12 |
Other References:
See also references of EP 4177545A4
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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