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Refrigeration cycle device

A technology of circulation device and refrigerant, which is applied in the direction of fluid circulation arrangement, irreversible circulation compressor, and compressor with reversible cycle, etc. problem, to achieve the effect of excellent energy saving and suppressing bias current

Inactive Publication Date: 2012-07-11
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reduction of the effective heat transfer area increases the compression pressure of the refrigerant and increases the compression power of the refrigerant, which leads to an increase in energy consumption during the operation of the refrigeration cycle.
Therefore, in prior art 1, there is a problem that energy saving is reduced.
[0011] On the other hand, in prior art 2, there is a problem that the workload of the compressor is increased due to the additional pressure loss in the refrigerant flow path, resulting in a decrease in energy saving.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0034] use Figure 1 to Figure 5 The air conditioner 20 provided with the refrigeration cycle apparatus 10 which concerns on 1st Embodiment of this invention is demonstrated.

[0035] First, regarding the air conditioner 20 of the present embodiment, while referring to figure 1 while explaining. figure 1 It is a block diagram of the air conditioner 20 provided with the refrigeration cycle apparatus 10 which concerns on 1st Embodiment of this invention.

[0036] The air conditioner 20 is a split-type air conditioner composed of an outdoor unit 8 and an indoor unit 9, and includes a refrigeration cycle device 10, an outdoor fan device 6, an indoor fan device 7, and the like.

[0037] The refrigeration cycle apparatus 10 connects a compressor 1 , a four-way switching valve 2 , an outdoor heat exchanger 3 , a pressure reducing device 4 , and an indoor heat exchanger 5 sequentially through refrigerant piping 11 to form a circulation flow path. Refrigerants are encapsulated ins...

no. 2 approach

[0063] use below Image 6 A second embodiment of the present invention will be described. Image 6 It is a side view of the outdoor heat exchanger 3 of the air conditioner 10 which concerns on 2nd Embodiment of this invention. This second embodiment is different from the first embodiment in the points described below, and since the other points are basically the same as those of the first embodiment, repeated descriptions will be omitted. also, Image 6 and Figure 4 correspond.

[0064] In this second embodiment, among the first to fourth refrigerant passages 3 a to 3 d constituting the parallel circuit of the outdoor heat exchanger 3 , the fourth refrigerant passage is the refrigerant passage including the heat transfer tube at the lowest position in space. 3d is spatially separated into an upstream channel 3d3 and a downstream channel 3d5 by an intermediate pipe 3d4, and the downstream channel 3d5 is arranged at a higher position than the upstream channel 3d3. In additio...

other Embodiment approach

[0071] In the above-mentioned embodiments, a split-type air conditioner has been described as an example of a refrigeration cycle device. However, as long as it is equipped with a cross-finned tube type and a plurality of refrigerant flow channels are arranged in multiple stages up and down in a substantially vertical direction, A refrigerating cycle device having a condenser configured with parallel refrigerant channels can also apply the present invention to, for example, refrigerators, cold water supply devices, and hot water supply devices, thereby improving energy saving.

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PUM

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Abstract

The invention provides a refrigeration cycle device which prohibits cooling medium from deviation in a plurality of cooling medium passages interconnected in parallel and enhances energy-saving performance. In the refrigeration cycle device, a cycle flow passage is formed by sequentially connecting a compressor, a condenser (3), a pressure reducing device with an evaporator by using a cooling medium piping (11), wherein, the condenser (3) interconnects a plurality of cooling medium passages (3a-3b) in parallel and configures the passages up and down, and a flow passage outlet (3a2) side, withinterior cooling medium becoming liquid while operation, in the cooling medium passage (3a) with an inlet (3a1) side of the condenser (3) thereof positioned above, is positioned nearer the lower sidethan a flow passage outlet (3b2), with interior cooling medium becoming liquid while operation, in the cooling medium passage (3a) with an inlet (3b1) side of the condenser (3) thereof positioned below.

Description

technical field [0001] The present invention relates to a refrigerating cycle device, and is particularly suitable for use in a refrigerating cycle device equipped with a vapor compression type. Background technique [0002] The vapor compression type refrigeration cycle device uses a compressor to compress the refrigerant, uses a condenser to dissipate the heat of the compressed refrigerant to the atmosphere or other media to condense the refrigerant, and uses a decompression device to decompress the condensed refrigerant , and use the evaporator to evaporate the depressurized refrigerant to cool media such as air, water, and antifreeze. In the above-mentioned condenser, the refrigerant flows in in a gaseous state, condenses in the condenser, and flows out in a liquid state. Therefore, at the inlet and outlet of the condenser, the density of the refrigerant inside is very different. [0003] As such a refrigeration cycle device, there are used such as Figure 7 The refrig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B41/00F25B39/04F25B41/04F25B13/00
CPCF25B39/04F25B2339/043F25B2339/045F25B41/42
Inventor 米田广关谷祯夫饭塚义典
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC