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Refrigerating device

A refrigeration device and refrigerant technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of complex compressor unit suction side piping structure, etc., and achieve the effect of high quality maintenance

Inactive Publication Date: 2006-10-25
DAIKIN IND LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, in a refrigeration plant with three compressor units and two systems of heat exchangers on the utilization side, in order to freely combine compressor units in various forms and use , it is necessary to adopt a complicated piping structure on the suction side of the compressor unit
In addition, in the above-mentioned refrigerating apparatus, in order to realize various operation forms of the compressor unit, it is necessary to perform complicated control according to the operation state.

Method used

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Embodiment -

[0161] With the above-described embodiments, the present invention can also take the following structures.

[0162] For example, in the above-mentioned embodiment, the first compressor unit 2A uses an inverter compressor, and the second compressor unit and the third compressor unit use a non-inverter compressor, but it is also possible to use inverter compressors for all three units, or Change the combination of the inverter compressor and the non-inverter compressor.

[0163] In addition, the first compressor unit 2A, the second compressor unit 2B, and the third compressor unit 2C may each be a single compressor or may be composed of a plurality of compressors. For example, when the total number of compressors is set to 5, it can also be: The first compressor unit 2A uses two compressors, the second compressor unit 2B uses one compressor, and the third compressor unit 2C uses two compressors, The first compressor unit 2A uses two compressors, the second compressor unit 2B u...

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Abstract

In a refrigerating plant with three compressors (2A, 2B, 2C) and two-system use-side heat exchangers (41, 45, 51), the first compressor (2A) is connected to be used only on the first system side The state of the utilization-side heat exchanger (45, 51) of the circuit, the third compressor (2C) is connected to the state of the utilization-side heat exchanger (41) only for the second system side circuit, and the second compressor ( 2B) By connecting the utilization side heat exchangers (45, 51) of the first system side circuit and the indoor heat exchanger (41) of the second system side circuit, the structure of the suction side piping can be simplified and simplifies operation control.

Description

technical field [0001] The present invention relates to a refrigeration device, in particular to a refrigeration device in which a compression mechanism is formed by combining three compressors. Background technique [0002] Conventionally, refrigerating devices that perform a refrigerating cycle are known, and have been widely used in air conditioners in cooling and heating rooms, refrigerators for storing food, freezers, and coolers for display windows. As shown in International Patent WO98 / 45651, there is a structure in which both air-conditioning and refrigeration and freezing are performed in this refrigeration device. Such refrigerating devices include, for example, two-system use-side heat exchangers such as air-conditioning heat exchangers and cooling heat exchangers for refrigeration and freezing, and are installed in small retail stores and the like. [0003] However, in such a refrigerating apparatus, since the capacity of the compressor varies greatly depending ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B5/02F25B1/00F25B1/10F25B13/00
CPCF25B1/10F25B13/00F25B2313/005F25B2313/0231F25B2313/02331F25B2313/02344F25B2313/02743F25B2313/0292F25B2313/0314F25B2313/0315F25B2400/061F25B2400/075F25B2400/0751F25B2400/19F25B2400/22F25B2600/021F25B2600/0251F25B2700/1931F25B2700/21152Y02B30/70F25B5/02
Inventor 谷本宪治竹上雅章阪江觉
Owner DAIKIN IND LTD
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