Freezing system

A refrigeration system and cooling system technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., and can solve the problems of large refrigerant charge and low efficiency of shutdown operation

Inactive Publication Date: 2008-08-06
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned cooling system part, since the charging amount of the refrigerant is large, the efficiency of shutting down the pump for removing the supercharger unit is not high.

Method used

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Examples

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Embodiment Construction

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0019] Fig. 1 is a diagram showing the system configuration of a refrigeration system 1 according to the present embodiment. This refrigeration system 1 is for realizing, for example, indoor air conditioning in a store 2 (indoor) of a convenience store; and in-box cooling of a refrigerator 3 and a freezer 4 as cooling storage equipment provided therein. Also, the refrigerator 3 cools the inside of the box to a refrigeration temperature (+3°C to +10°C), and is used to place beverages and refrigerated foods; the freezer 4 cools the inside of the box to a freezing temperature (-10°C to -20°C) , for displaying frozen food and frozen snacks, etc.

[0020] The refrigeration system 1 includes: an air-conditioning system unit 6 for air-conditioning the store 2 ; and a cooling system unit 8 for cooling the inside of the refrigerator 3 and the freezer 4 . This air-conditionin...

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PUM

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Abstract

This invention provided a refrigerating system provided with a structure capable of simply separating a booster unit in a cooling system part from the cooling system part. In this refrigerating system, the cooling system part for cooling the inside of each of a freezing case and a refrigerating case is provided with a compressor for cooling whose main role is refrigerant circulation and a boosting compressor for boosting pressure of refrigerant passed through the freezing case up to pressure of refrigerant passed through the refrigerating case. The compressor for cooling is stored in an outdoor unit, and the boosting compressor is stored in the booster unit being separate from the outdoor unit. The booster unit is provided with service valves 71, 72 for connecting refrigerant pipes and is connected to the freezing case, the refrigerating case, and the outdoor unit through the service valves 71, 72. Each service valve 71, 72 is provided with a release part 91 opening a booster unit side when closing the valve elements.

Description

technical field [0001] The present invention relates to a refrigeration (freezing) system with a supercharger unit. Background technique [0002] In recent years, there have been refrigerating systems having the following configurations: an air-conditioning system unit for indoor air-conditioning of convenience stores and the like; A cooling system unit that performs cooling (for example, Patent Document 1). [0003] Since the evaporation pressure of the refrigerant in the freezer is lower than the evaporation pressure of the refrigerant in the refrigerator, when the refrigerator and the freezer are cooled by one refrigerant circuit , it is necessary to increase the pressure of the refrigerant after the freezer to the pressure of the refrigerant after the refrigerator so as to merge with the refrigerant after the refrigerator. Therefore, on the cooling system part, it is considered to install: a cooling compressor (first compressor) whose main function is to generate and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00F25B41/04
CPCF25B2400/22
Inventor 关根信次石上信一
Owner SANYO ELECTRIC CO LTD
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