BINARY HEAT PUMP AND REFRIGERATOR

WIPO Patent Application WO/2010/098005

A1

Provided is a binary heat pump wherein the heating capability, the cooling capability, and the coefficient of performance of a low-temperature side heat pump and a high-temperature side heat pump are improved. In a first upstream side condensation element (12U) of a low-temperature side heat pump (1), water is preheated by condensation heat (QL11) released from a first refrigerator (R404A). In a second evaporation element (24) of the high-temperature side heat pump (2), a second refrigerant (R134a) is evaporated by condensation heat (QL12) released in a first downstream side condensation element (12L). Thus, the temperature of the preheated water is further increased by condensation heat (QH11) released in a second upstream side condensation element (22U) of the high-temperature side heat pump. Further, condensation heat (QH12) released in a second downstream side condensation element (22L) of the high-temperature side heat pump (2) is stored in a heat storage tank (4). When the heat can be sufficiently stored in the heat storage tank (4), the low-temperature side heat pump (1) absorbs heat quantity (QL2a) from the heat storage tank.

IWAYA, Ryohei (14-8, Chitosedai 5-chome, Setagaya-k, Tokyo 71, 〒1570071, JP)

JP2009/071436

September 02, 2010

December 24, 2009

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Iwaya Machinery Co., Ltd. (14-8, Chitosedai 5-chome Setagaya-k, Tokyo 71, 〒1570071, JP)
株式会社岩谷冷凍機製作所 (〒71 東京都世田谷区千歳台５丁目１４番８号 Tokyo, 〒1570071, JP)

F25B29/00; F25B5/00; F25B5/04; F25B6/04; F25B7/00; F25B29/00; F25B5/00; F25B6/00; F25B7/00

SHIMOSAKA, Sumiko et al. (Yusei Fukushi Kotohira Bldg. 6F, 14-1 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)

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