Refrigeration device

A refrigeration device and technology of cooling capacity, which can be used in household refrigeration devices, cooling fluid circulation devices, refrigerators, etc., and can solve problems such as energy consumption

Active Publication Date: 2011-04-06
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional refrigerating apparatus, even in the above-mentioned state, the compressor etc. are always operated, which consumes energy in vain.

Method used

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Embodiment Construction

[0047]Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, each of the following embodiments is an essentially ideal example, and is not intended to limit the present invention, the application of the present invention, or the scope of its use.

[0048] (First Embodiment) A first embodiment of the present invention will be described. As shown in FIG. 1, the refrigeration apparatus 1 of this embodiment is an apparatus which cools the interior of the container used for sea transportation etc.. As shown in FIG. This refrigerating apparatus 1 includes a refrigerant circuit 10 , an external fan 15 , and an internal fan 16 , and the refrigerant circuit 10 circulates a refrigerant to perform a vapor compression refrigeration cycle.

[0049] In the refrigerant circuit 10, a compressor 11, a condenser 12, an expansion valve 13, and an evaporator 14 are provided as main components.

[0050] The compressor 11 is cons...

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PUM

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Abstract

The invention discloses a refrigeration device. The refrigeration system has an energy saving operation mode performing: a first action in which a compressor (11) and an internal fan (16) are driven while the cooling capacity of an evaporator (14) is regulated; a second action in which, when the blow-off-side air temperature in a cold storage is kept at a set value in the first action, the coolingcapacity of the evaporator (14) is increased to lower the blow-off-side air temperature to a lower limit temperature of a desired temperature range containing the set value and the compressor (11) and the internal fan (16) are then stopped; and a third action in which, when the blow-off-side air temperature after the second action rises to an upper limit temperature of the desired temperature range, the first action is restarted. Furthermore, the energy saving operation mode is configured so that when the suction-side air temperature in the cold storage after the second action rises to a limit value, the internal fan (16) is activated at a lower air flow rate than in the first action.

Description

technical field [0001] The present invention relates to a refrigeration device provided with a cooling heat exchanger for cooling the inside of a refrigerator, and more particularly to an energy-saving operation method. Background technique [0002] Conventionally, freezers for cooling the interior of refrigerators, freezers, and the like have been known. [0003] For example, Patent Document 1 discloses a refrigeration device that cools the interior of containers used for marine transportation and the like. This refrigeration system includes a refrigerant circuit in which a compressor, a condenser, an expansion valve, and a cooling heat exchanger (evaporator) are connected. In the refrigerant circuit of this refrigerating apparatus, a refrigerant is circulated to perform a vapor compression refrigeration cycle. As a result, the refrigerant flowing through the cooling heat exchanger absorbs heat from the interior air and evaporates, thereby cooling the interior air. In th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D11/00F25B1/00F25D17/06
CPCY02B30/743F25B2600/112F25B2400/13F25B2400/051F25D11/00Y02B40/32F25D29/00F25B2600/0251Y02B30/70Y02B40/00
Inventor 田中滋人
Owner DAIKIN IND LTD
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