Supercooling device

A technology for supercooling and freezing devices, which is applied to subcoolers, refrigerators, refrigeration components, etc., and can solve problems such as wrong wiring and complicated installation of supercooling devices

Inactive Publication Date: 2008-03-19
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the above-mentioned conventional supercooling device, there is such a problem that when the supercooling device is installed in the refrigeration device, it is necessary to have wiring work for transmitting signals for receiving and sending signals between the two, so that the overcooling The installation work of the cooling device is complicated
In addition, there is a possibility that wrong wiring may occur in this wiring construction, and there is a possibility that an accident may be caused by such human error.

Method used

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Examples

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example 2—

[0175] This modification 2 is an example in which the structure of the cooling fluid circuit of the above-mentioned embodiment is changed, and is not shown in the figure. In the above-mentioned embodiment, the cooling fluid circuit is constituted by the refrigerant circuit, but in this modified example, the cooling water circuit through which the cooling water flows is constituted. Specifically, the cooling water circuit is configured to include a subcooling heat exchanger 210 and a water pump, and the cooling water of the cooling tower circulates between the subcooling heat exchanger 210 through the water pump. In addition, in the heat exchanger 210 for subcooling, the cooling water exchanges heat with the refrigerant in the refrigerant passage 205 to cool the refrigerant. That is, in the cooling fluid circuit of this modified example, cooling water flows as a cooling fluid.

[0176] In this modified example, for example, when the temperature of the outdoor air is high, the ...

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PUM

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Abstract

A supercooling apparatus, comprising a supercooling unit (200). In the supercooling unit, a refrigerant passage (205) is connected to the liquid side communication pipes (21, 22) of a refrigerating device (10). When a supercooling compressor (221) is operated, a supercooling refrigerant is circulated in a supercooling refrigerant circuit (220), a refrigerating cycle is performed, and the refrigerant of the refrigerating device (10) flowing in the refrigerant passage (205) is cooled. The detected values of an atmospheric temperature sensor (231) and a refrigerant temperature sensor (236) are inputted into the controller (240) of the supercooling unit (200). The controller (240) performs the operating control of the supercooling compressor (221) based on only the information obtained in the supercooling unit (200).

Description

technical field [0001] The present invention relates to a refrigerating device, and in particular to measures for improving the performance and reliability of a refrigerating device including a refrigerant circuit performing a two-stage compression refrigeration cycle. Background technique [0002] Hitherto, as shown in Japanese Unexamined Patent Publication No. 10-185333, for the purpose of increasing the cooling capacity, a supercooling device installed in a refrigeration unit to cool the refrigerant sent from the heat source unit to the utilization unit in the refrigeration unit is known. [0003] This subcooling device is installed in an air conditioner including an outdoor unit and an indoor unit. Specifically, the subcooling device is installed in the middle of a liquid-side connecting pipe connecting the outdoor unit and the indoor unit, and includes a refrigerant circuit for subcooling. In this subcooling device, a refrigerant is circulated in a subcooling refrigera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B40/02F25B1/00F25B13/00
CPCF25B40/02F25B2313/02331F25B2700/2106F25B2700/2103F25B2400/22F25B13/00F25B1/00F25B40/00F25B49/02
Inventor 竹上雅章谷本宪治阪江觉篠原巌近藤东
Owner DAIKIN IND LTD
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