Title:
HEAT PUMP-TYPE HOT-WATER SUPPLY AND AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/090071
Kind Code:
A1
Abstract:
A heat pump-type hot-water supply and air-conditioning device (HP) provided with a water system (30) which is subjected to heating by a refrigerant system (10) of a heat pump to obtain hot water and performing defrosting operation by setting the circulation direction of a refrigerant in the refrigerant system (10) to a cooling cycle, wherein, in the defrosting operation, the risk of freezing of a water-refrigerant heat exchanger is avoided using a minimum required heat source. Depending on the detected value of the temperature of hot water flowing in the water system (30), either hot water which is circulating in a hot-water circulation path (32) or hot water which is being stored within a hot-water tank (37) is selected as water to be made to flow to an indoor heat exchanger (13) in the defrosting operation. When the detected value of the temperature of the hot water becomes lower than or equal to the value of a predetermined water temperature, the stored hot water is selected.
Inventors:
YAMADA, Hiroyuki (C/O Air-Conditioning & Refrigeration Systems Headquarters, MITSUBISHI HEAVY INDUSTRIES LTD., 3-1, Asahi, Nishibiwajima-cho, Kiyosu-sh, Aichi 61, 〒4528561, JP)
山田 容之 (〒61 愛知県清須市西枇杷島町旭３丁目１番地 三菱重工業株式会社 冷熱事業本部内 Aichi, 〒4528561, JP)
TAKEUCHI, Nobuyuki (C/O Air-Conditioning & Refrigeration Systems Headquarters, MITSUBISHI HEAVY INDUSTRIES LTD., 3-1, Asahi, Nishibiwajima-cho, Kiyosu-sh, Aichi 61, 〒4528561, JP)
山田 容之 (〒61 愛知県清須市西枇杷島町旭３丁目１番地 三菱重工業株式会社 冷熱事業本部内 Aichi, 〒4528561, JP)
TAKEUCHI, Nobuyuki (C/O Air-Conditioning & Refrigeration Systems Headquarters, MITSUBISHI HEAVY INDUSTRIES LTD., 3-1, Asahi, Nishibiwajima-cho, Kiyosu-sh, Aichi 61, 〒4528561, JP)
Application Number:
JP2010/050610
Publication Date:
August 12, 2010
Filing Date:
January 20, 2010
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
YAMADA, Hiroyuki (C/O Air-Conditioning & Refrigeration Systems Headquarters, MITSUBISHI HEAVY INDUSTRIES LTD., 3-1, Asahi, Nishibiwajima-cho, Kiyosu-sh, Aichi 61, 〒4528561, JP)
山田 容之 (〒61 愛知県清須市西枇杷島町旭３丁目１番地 三菱重工業株式会社 冷熱事業本部内 Aichi, 〒4528561, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
YAMADA, Hiroyuki (C/O Air-Conditioning & Refrigeration Systems Headquarters, MITSUBISHI HEAVY INDUSTRIES LTD., 3-1, Asahi, Nishibiwajima-cho, Kiyosu-sh, Aichi 61, 〒4528561, JP)
山田 容之 (〒61 愛知県清須市西枇杷島町旭３丁目１番地 三菱重工業株式会社 冷熱事業本部内 Aichi, 〒4528561, JP)
International Classes:
F25B47/02; F24H1/00; F24H1/18
Attorney, Agent or Firm:
FUJITA, Takaharu et al. (37F The Landmark Tower Yokohama, 2-2-1 Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 37, 〒2208137, JP)
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