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refrigeration unit

A refrigeration device and refrigerant technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as cost increase, and achieve the effect of easy connection and easy use

Active Publication Date: 2020-01-10
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned air conditioner is effective because it can flexibly respond to an increase in the indoor air conditioning load, but it will increase the cost because it is only a replacement of the equipment

Method used

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Experimental program
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Embodiment Construction

[0046] Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

[0047] (1) Structure of refrigeration device 1

[0048] figure 1 It is a circuit diagram of the refrigeration apparatus 1 which concerns on one Embodiment of this invention. The cooling device 1 is composed of an indoor unit 20 and an outdoor unit 30 . This refrigeration device 1 is an air conditioner that performs cooling and heating in a building by performing a vapor compression type refrigeration cycle operation.

[0049] In the refrigerator 1, the first compressor 31, the four-way switching valve 32, the outdoor heat exchanger 33, the outdoor expansion valve 34, the indoor heat exchanger 21, and the accumulator The tanks 36 and the like are connected together to constitute the refrigerant circuit 10 .

[0050] During cooling operatio...

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PUM

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Abstract

A technical problem of the present invention is to provide a refrigeration device that can cope with an increase in the load of an air-conditioning device without replacing the device. In the refrigerating device (1), even if the indoor air-conditioning load increases, it is only necessary to connect the extension unit (60) to the outdoor unit (30) and connect the second compressor (61) to the existing refrigerant circuit (10) The connection can cope with the load increase without adding a refrigeration device or replacing the equipment, so it is economical. In addition, a third shutoff valve (39) and a fourth shutoff valve (40) for connecting the second compressor (61) to the existing refrigerant circuit (10) are provided, so it is easy to connect and use.

Description

technical field [0001] The invention relates to a refrigeration device. Background technique [0002] At present, when the indoor air conditioner load increases, if there is no margin when the model is selected, the capacity will become insufficient, and it will be necessary to install additional air conditioners. For example, in the air conditioner disclosed in Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2009-174759), the refrigeration cycle is composed of three modules: an outdoor module, a compressor module, and an indoor module, and has a heat exchange capacity according to the conditions. A combination of the above modules can be selected in a specific way. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2009-174759 [0006] The above-mentioned air conditioner is effective because it can flexibly respond to an increase in the indoor air-conditioning load, but it leads to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/04F25B49/02F25B41/20
Inventor 冈本敦奥野真希
Owner DAIKIN IND LTD