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Cooling system

A technology of cooling system and refrigerator, which is applied in the field of cooling system and can solve problems such as difficulties

Inactive Publication Date: 2012-03-21
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to achieve these, and there are difficulties in obtaining energy-saving effects by controlling with a microcomputer in the rack system refrigerator

Method used

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Experimental program
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Embodiment Construction

[0028] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] figure 1 It is a schematic diagram which shows the structure of the cooling system 1 which concerns on embodiment of this invention.

[0030] As shown in the figure, the configuration 1 of the cooling system includes: a plurality of low-temperature showcases 7 are connected in parallel to the rack system refrigerator 3 through a refrigerant pipe 5a serving as a liquid line and a refrigerant line 5b serving as a gas line Refrigeration circuit 2, main controller (main controller) 4 and compressor controller (compressor controller) 6.

[0031] The rack system refrigerator 3 includes a plurality of compressors 9, a condenser 11, a condenser fan 13, and a low pressure side pressure sensor 26 that detects the refrigerant pressure on the low pressure side (and is referred to as "low pressure side pressure"). Each of the compressors 9 is a fixed-capacity compress...

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PUM

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Abstract

The invention provides a cooling system which has a plurality of kinds of compressors capable of being selected and combined freely, and can keep the cooling performance of low temperature showcase and improve energy saving performance of the refrigerator. The cooling system comprises: a refrigeration loop composed by connecting a plurality of low temperature showcases in parallel by refrigerant pipes and cabinet system refrigerators selected and combined freely from the plurality of kinds of compressors; a main controller for setting the low pressure side pressure set value of the cabinet system refrigerators according to the cooling state of the low temperature showcase; and a compressor controller capable of acquiring the control setting needed in the capacity control in the assemblingof the compressors in the cabinet system refrigerators, receiving the low pressure side pressure set value from the main controller, and controlling the capacities of the compressors according to thelow pressure value corresponding to the low pressure side pressure set value and the control setting.

Description

technical field [0001] The present invention relates to a cooling system composed of a low-temperature showcase installed in, for example, a supermarket, and a refrigerating machine for supplying refrigerant to the low-temperature showcase, and more particularly, to a refrigeration system with a variety of compressors arbitrarily selected and freely combined The control technology of the cooling system of the machine. Background technique [0002] Conventionally, a known cooling system is constructed by connecting a plurality of low-temperature showcases such as freezer and refrigerated showcases in parallel with a refrigerator via a refrigerant pipe. There are many related low-temperature display cabinets in supermarkets and other stores to display and sell frozen or refrigerated food. [0003] The above-mentioned refrigerator is generally constructed by housing one or more compressors and a microcomputer that controls the compressors in a casing to be packaged. And this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02A47F3/04
CPCY02B40/32
Inventor 川合毅小柴胜关口和弘
Owner SANYO ELECTRIC CO LTD
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