(19)
(11) EP 2 597 400 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.03.2015 Bulletin 2015/10

(43) Date of publication A2:
29.05.2013 Bulletin 2013/22

(21) Application number: 12193492.1

(22) Date of filing: 20.11.2012
(51) International Patent Classification (IPC): 
F25B 29/00(2006.01)
 F25D 17/02(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 22.11.2011 JP 2011255149

(71) Applicant: Mitsubishi Heavy Industries
Tokyo 108-8215 (JP)

(72) Inventors:
  • Mori, Takachika
    Tokyo, 108-8215 (JP)
  • Yamaguchi, Toru
    Tokyo, 108-8215 (JP)
  • Akatsuka, Kei
    Tokyo, 108-8215 (JP)
  • Fuchimoto, Takeshi
    Tokyo, 108-8215 (JP)

(74) Representative: Intès, Didier Gérard André et al
Cabinet Beau de Loménie 158, rue de l'Université
75340 Paris Cedex 07
75340 Paris Cedex 07 (FR)

   


(54) Heat pump system


(57) An object is to provide a heat pump system that can eliminate an insufficient pump head when the flow rate is high, a decrease in efficiency when the flow rate is low, and so on, so that the heat pump system can be operated constantly at high efficiency. In a heat pump system (1) in which a plurality of heat pump chillers (4A to 4D) are connected to a single cold/hot water circuit (2) equipped with a water pump (3), the plurality of heat pump chillers (4A to 4D) are divided into a plurality of series, the heat pump system including a parallel circuit (5) that connects the heat pump chillers (4A to 4D) of the individual series in parallel to the single cold/hot water circuit (2) and a series circuit (6) that connects the heat pump chillers (4A to 4D) of the individual series in series to the single cold/hot water circuit (2), wherein the parallel circuit (5) and the series circuit (6) are switchable to each other via a switching means (7, 8, and 9).







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Search report