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Refrigeration cycle device

a technology of refrigerating cycle and condenser, which is applied in the direction of lighting and heating apparatus, heating types, and domestic hot water supply systems, etc., can solve the problems of deteriorating cooling capacity of evaporators, shortening or lowering the amount of heat to be rejected from refrigerant in the condenser, and causing temperature rise, so as to maintain the cooling capacity of the evaporator, the temperature of the water subjected to the heat exchang

Inactive Publication Date: 2007-08-30
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The present invention has been developed to solve a problem of such a conventional technology, and an object is to provide a refrigeration cycle device in which heat generated by heat absorption in an evaporator is used for heating in a condenser. The device securely avoids a disadvantage that a cooling capacity of the evaporator deteriorates owing to shortage or drop of an amount of the heat to be rejected from the condenser, and maintains a cooling function.

Problems solved by technology

In a case where the heat is discharged from the condenser to the atmospheric air as in a conventional example, a disadvantage occurs that a temperature rise is caused by the discharged heat around the refrigeration cycle device.
However, in a case where the heat generated in the evaporator as described above is used for heating in the condenser, an amount of the heat to be rejected from the refrigerant in the condenser falls short or lowers owing to increase of a cooling load or decrease of a heating load.
This has caused a problem that a cooling capacity of the evaporator deteriorates to hinder the cooling of the object to be cooled.

Method used

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Examples

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embodiment 1

[0027]FIG. 1 is a schematic constitution diagram of a refrigeration cycle device of one embodiment to which the present invention is applied. A refrigeration cycle device 1 of the present embodiment is provided with a refrigerant circuit 2 including a compressor 10, a condenser 11, an expansion valve 14 as a throttling means and an evaporator 16; and a hot water supply circuit 3 including a hot water storage tank 30. The device exhibits a heating function by heat rejected from the condenser 11 and exhibits a cooling function by heat absorption of the evaporator 16. That is, the refrigeration cycle device 1 performs heat exchange between water or hot water circulated from the hot water storage tank 30 through the hot water supply circuit 3 and the condenser 11 to generate high-temperature water by the heat rejected from the condenser 11 and store the hot water in the hot water storage tank 30. Moreover, the device exhibits the cooling function by the heat absorption of the evaporator...

embodiment 2

[0077]Next, another embodiment of a refrigeration cycle device according to the present invention will be described. FIG. 2 is a schematic constitution diagram of the refrigeration cycle device of the embodiment to which the present invention is applied. In FIG. 2, components denoted with the same reference numerals as those of FIG. 1 are the same components or components which produce similar functions or effects. Therefore, description thereof is omitted, and a part of the present embodiment different from the above embodiment will mainly be described.

[0078]First, a difference between a constitution of a refrigeration cycle device 100 of the present embodiment and that of the refrigeration cycle device 1 of Embodiment 1 will be described. The refrigeration cycle device 1 of Embodiment 1 includes a discharge unit 36 which discharges hot water from a hot water storage tank 30 as needed. On the other hand, the refrigeration cycle device 100 of the present embodiment does not include ...

embodiment 3

[0093]Next, still another embodiment of a refrigeration cycle device according to the present invention will be described. FIG. 3 is a schematic constitution diagram of the refrigeration cycle device of Embodiment 3 to which the present invention is applied. It is to be noted that in FIG. 3, components denoted with the same reference numerals as those of FIGS. 1 and 2 are the same components or components which produce similar functions or effects. Therefore, description thereof is omitted, and a part of the present embodiment different from the above embodiments will mainly be described.

[0094]First, a difference between a constitution of a refrigeration cycle device 200 of the present embodiment and that of the refrigeration cycle device 1 of Embodiment 1 will be described. The refrigeration cycle device 1 of Embodiment 1 includes a discharge unit 36 which discharges hot water from a hot water storage tank 30 as needed. On the other hand, the refrigeration cycle device 200 of the p...

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Abstract

In a refrigeration cycle device in which heat generated by heat absorption of an evaporator is used for heating in a condenser, a disadvantage that a cooling capacity of the evaporator deteriorates owing to shortage or drop of an amount of the heat to be rejected from the condenser is securely avoided and a cooling function is maintained. In the refrigeration cycle device which is provided with a refrigerant circuit including a compressor, a condenser, an expansion valve and an evaporator and which exhibits a heating function by the heat rejected from the condenser and which exhibits the cooling function by the heat absorption of the evaporator, an operation to secure a predetermined amount of the heat to be rejected from the condenser is executed in order to maintain the cooling function of the evaporator based on an index capable of grasping the amount of the heat to be rejected from the condenser.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a refrigeration cycle device provided with a refrigerant circuit including a compressor, a condenser (or condensing heat exchanger or gas cooler or gas cooling heat exchanger), a throttling means and an evaporator. The present invention more particularly relates to a refrigeration cycle device which exhibits a heating function by heat rejected (or transferred) from a condenser and which exhibits a cooling function by heat absorption of an evaporator.[0002]Heretofore, as methods such as cooling and freezing to cool an object to be cooled, a refrigeration cycle device has broadly been used in which a vapor compression type refrigeration cycle (vapor-compression refrigeration cycle) is used. This type of refrigeration cycle device exhibits a cooling function by absorbing heat of a refrigerant in an evaporator to cool the object to be cooled, and rejects the heat generated by heat rejected from the refrigerant in a conden...

Claims

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Application Information

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IPC IPC(8): F25B39/04F25B27/00
CPCF24D17/02F25B6/02F25B6/04F25B9/008F25B29/003F25B2700/21163F25B2309/061F25B2339/047F25B2700/2111F25B2700/21152F25B2700/21161F25B49/027
Inventor OTAKE, MASAHISASATO, KOJIMUKAIYAMA, HIROSHI
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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