Heat pump type hot water supply system with cooling function

A hot water supply and heat pump technology, applied in the field of heat pump hot water supply system, can solve the problems of high equipment cost and operating cost, and achieve the effect of realizing the cooling function
CN1523301AInactive Publication Date: 2004-08-25DENSO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DENSO CORP
Publication Date
2004-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

This heat pump type hot water supply apparatus with a cooling function is provided with a second refrigerant circuit R2 branched downstream of a high pressure refrigerant passage 2a to pass through a second expansion valve 4b and a low pressure refrigerant passage 9a of a brine cooling heat exchanger 9 and to join upstream of a refrigerant compressor 1 to be in parallel with a first refrigerant circuit R1, and a cold brine circuit B1 annularly connecting a brine passage 9b of the brine cooling heat exchanger 9, a cold brine circulating pump 8 and a terminal heat exchanger 10. A refrigerant is allowed to flow through the low pressure refrigerant passage 9a, and the cold brine circulating pump 8 is operated to exchange heat between the refrigerant of low temperature and low pressure flowing through the low pressure refrigerant passage 9a, and brine flowing through the brine passage 9b to cool the brine. Hot water supply and cooling can thereby be performed by one simple refrigerating cycle apparatus with a heat source integrated. Moreover, since waste cold heat is used, energy saving can be attained, and an apparatus cost and a running cost can be suppressed low.
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Description

technical field

[0001] The invention relates to a heat pump type hot water supply system which simultaneously has the functions of hot water supply and cooling, freezing, refrigerating and cold insulation. Background technique

[0002] In the prior art, the waste heat of the heat pump hot water supply system is discharged into the air without being reused. On the other hand, conventional cooling or freezing / refrigerating systems are often equipped with a dedicated cooling / refrigerating unit.

[0003] According to the above-mentioned conventional technology, separate refrigeration cycle systems are required for both the hot water supply function and the cooling or freezing / refrigerating function, thereby causing problems of high equipment cost and operation cost. Contents of the invention

[0004] Therefore, an object of the present invention is to overcome the above-mentioned problems of the prior art, and provide a heat pump hot water supply system with cooling function,...

Claims

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