HEAT PUMP HOT WATER SUPPLIER

Japanese Patent JP3642311

B2

PROBLEM TO BE SOLVED: To ensure a necessary hot water quantity for a heat pump hot water supplier and to attain the miniaturization of a hot water storage tank and an energy-saving effect.
SOLUTION: This heat pump hot water supplier has a structure for setting the boiling hot water temperature of a heat pump 14, heating the water in the lower part of the hot water storage tank 5, and storing a set high-temperature hot water from the upper part of the storage tank 5. In this supplier, the operation of the heat pump 14 is controlled by an operation control means 18 on the basis of the signal of a hot water discharge detecting means 17 for detecting the discharge of hot water from the storage tank 5, and when the discharge of hot water from the storage tank 5 is detected by the hot water discharge detecting means 17, the heat pump 14 is operated by the operation control means 18. According to such a structure, since the hot water in the storage tank 5 is mixed with the hot water raised in temperature by the heat pump 14 and discharged to a terminal side, a necessary hot water quantity is regularly ensured to a necessary hot water supply load even if the hot water discharge quantity from the storage tank 5 is small. Further, the storage tank 5 is miniaturized, and the efficient heat pump is operated, whereby the energy-saving effect is obtained.

Satoshi Imabayashi
Takeshi Watanabe
Keijiro Kunimoto
Ryuta Kondo
Satoshi Matsumoto

JP2001362206A

April 27, 2005

November 28, 2001

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Matsushita Electric Industrial Co., Ltd

F24H1/00; F25B30/02; (IPC1-7): F24H1/00; F25B30/02

JP5272812A
JP10311597A
JP2001248914A
JP2002295901A

Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito

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