Title:
HEAT MEDIUM COMPRESSION DEVICE, AIR CONDITIONING DEVICE, AND HEAT MEDIUM COMPRESSION METHOD
Document Type and Number:
Japanese Patent JP2022032679
Kind Code:
A
Abstract:
To efficiently operate a compressor for air conditioning.SOLUTION: A heat medium compression device includes: a first compressor 1 and a second compressor 2; suction-side piping 4 and discharge-side piping 5 for connecting the first compressor 1 and the second compressor 2 to a heat exchanger in parallel; connection piping 6 for connecting a discharge side of the first compressor 1 and a suction side of the second compressor 2 in series; and a control portion 3 for controlling a flow rate of a heat medium flowing in the suction-side piping 4, the discharge-side piping 5 and the connection piping 6. The control portion 3 selectively connects the first compressor 1 and the second compressor 2 between the suction-side piping 4 and the discharge-side piping 5, or connects the first compressor 1 and the second compressor 2 between the section-side piping 4 and the discharge-side piping 5 in series, and controls a flow rate of the heat medium sucked to the second compressor 2 connected in series, to be larger than a flow rate of the heat medium discharged from the first compressor 1.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
CHIBA MASAKI
YOSHIKAWA MINORU
MIYAMOTO YOSHINORI
YOSHIKAWA MINORU
MIYAMOTO YOSHINORI
Application Number:
JP2020136718A
Publication Date:
February 25, 2022
Filing Date:
August 13, 2020
Export Citation:
Assignee:
NEC CORP
International Classes:
F25B1/10; F25B1/00; F25B1/053
Attorney, Agent or Firm:
Sumio Tanai
Ryuichiro Mori
Yasushi Matsunuma
Eisuke Ito
Ryuichiro Mori
Yasushi Matsunuma
Eisuke Ito