Heat pump type hot water supply device and heat pump type hot water supply heating device
A heating device and heat pump technology, applied in the field of heat pump water supply devices and heat pump heating devices, can solve the problems of high return temperature of difficult-to-warm water circulation circuit, increased compressor load, and high temperature of refrigerant
Inactive Publication Date: 2004-08-04
SANYO ELECTRIC CO LTD +1
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Problems solved by technology
[0004] However, in this device, there is the following problem: when the heating load becomes small during the warm water heating operation, the temperature of the return side of the circulating water circuit becomes high, and the temperature of the refrigerant is high due to insufficient heat exchange, resulting in compression. The load on the machine becomes large, and the operation of the compressor has to be stopped in order to protect the compressor
Therefore, when using a heat pump unit for heating, it is difficult to cope with the high return temperature of the warm water circulation path for heating.
Method used
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Embodiment Construction
[0012] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a system diagram of the whole system of heat pump hot water heating device. exist figure 1 Among them, A is the heat pump unit, B is the container unit, C1 is the first warm water circulation circuit for warm water heating, C2 is the second warm water circulation circuit for hot water storage, and R is the refrigerant circuit built in the heat pump unit A. Although HFC or CO can be used 2 and other refrigerants, but in this embodiment use CO 2 .
[0013] 1 and 2 are the underfloor heating panels installed in the first warm water circulation circuit C1, 3 and 4 are the underfloor heating remote controls (hereinafter referred to as "underfloor heating remote control") set corresponding to the underfloor heating panels 1 and 2, The thermal valves 5 and 6, the expansion vessel 8, the water flow path 9A of the first water-refrigerant heat exchanger 9, the bypass pi...
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This heat pump type hot water supply device comprises a refrigerant circuit R obtained by successively circularly connecting a compressor 11, a parallel circuit of the first water refrigerant heat exchanger 9 and the second water refrigerant heat exchanger 12, an internal heat exchanger 15, a decompressor 16 and an air heat exchanger 17, a first hot water circulating passage C1 for circulating the hot water between the first water refrigerant heat exchanger 9 and a hot water heater such as floor heating panels 1, 2, a second hot water circulating passage C2 for circulating the hot water between the second heat refrigerant heat exchanger 12 and a hot water storage tank 26, and a control means S1 performing the control to execute the heat exchanging between the refrigerant flowing out from the first water refrigerant heat exchanger 9 or the second water refrigerant heat exchanger 12 and the refrigerant flowing out from the air heat exchanger 17 by the internal heat exchanger 15 during hot water heating operation by the first hot water circulating passage C1, or hot water storing operation by the second hot water circulating passage C2.
Description
technical field [0001] The present invention relates to the use of HFC or CO 2 Heat pump water supply device and heat pump heating device of refrigerant and other refrigerants. Background technique [0002] As is well known, the heat pump type hot water heating device in the prior art stores the high-temperature water exchanged by the heat pump unit in the hot water storage container, and at the same time stores the heat in the hot water storage container, and the high temperature of the container Water is used for hot water supply and bath water, and warm water for heating obtained by exchanging this high-temperature heat is used for warm water heating. In such a device, warm water of a sufficiently high temperature cannot be obtained when the heating load is large. [0003] It is also known to perform hot water storage operation and warm water heating operation by combining a water-cooling medium heat exchanger for hot water supply and a water-medium heat exchanger for he...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24H1/00F24D3/10F24D3/18F25B30/02
CPCY02B30/12
Inventor 南方浩二冈田忠夫小山清星野聪武藤好夫佐藤文明
Owner SANYO ELECTRIC CO LTD