Refrigerating system

A refrigeration system and mechanical refrigeration technology, applied in refrigerators, refrigeration and liquefaction, household refrigeration equipment, etc., can solve problems such as narrow operating range, freezing of evaporators or intermediate heat exchangers, and shortening the service life of hosts, etc. The effect of operating range, solving the problem of antifreeze, and reducing operating costs

Inactive Publication Date: 2015-10-21
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 1) In the traditional refrigeration system with natural cooling mode, the whole unit of a system is placed outdoors. When the outdoor ambient temperature is low enough (below 0°C), and due to some reasons (such as power failure, etc.) the pure water cycle or When the circulation of ethylene glycol solution fails to work, the solution in the evaporator or intermediate heat exchanger is very likely to freeze, causing the evaporator or intermediate heat exchanger to freeze, and their antifreeze problem becomes a fatal flaw of the system; 2) The traditional refrigeration system with natural cooling mode does not make full use of the natural cold source, and only relies on mechanical refrigeration cycle refrigeration, which has high operating costs; 3) When the traditional refrigeration system with natural cooling mode operates at low ambient temperature, it is prone to frequent start-up of the host 4) The traditional system is affected by the ambient temperature and water temperature, and the operating range is narrow

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0061] Such as figure 2 and Figure 4 As shown, the cooling water flow path 130 includes a first section 101 provided with a water inlet 131 , a second section 102 flowing through the intermediate heat exchanger 122 , and a third section placed between the intermediate heat exchanger 122 and the evaporator 113 103, the fourth section 104 flowing through the evaporator 113 and the fifth section 105 provided with a water outlet 132, the first section 101, the second section 102, the third section 103, the fourth section 104 and the fifth section 105 are connected in sequence .

[0062] Wherein, the third section 103 is provided with a first three-way valve 140, the first three-way valve 140 includes a first end 141, a second end 142 and a third end 143, the first end 141 is connected with the fourth section 104, and the first end 140 is connected to the fourth section 104. The second end 142 is connected to the second segment 102 , and the third end 143 is connected to the fi...

Embodiment 2

[0066] Such as image 3 and Figure 5 As shown, the natural cooling flow path 123 includes the sixth section 106 passing through the intermediate heat exchanger 122, the seventh section 107 passing through the natural cooling coil 121, and the sixth section between the intermediate heat exchanger 122 and the natural cooling coil 121. Eight paragraphs 108 and ninth paragraphs 109.

[0067] One of the eighth section 108 and the ninth section 109 is provided with a second three-way valve 150, the second three-way valve 150 has a fourth end 151, a fifth end 152 and a sixth end 153, and the fourth end 151 is connected to the sixth end 153. The six segments 106 are connected, the fifth end 152 is connected to the seventh segment 107 , and the sixth end 153 is connected to the other of the eighth segment 108 and the ninth segment 109 .

[0068] In a specific example of the present invention, the second three-way valve 150 is provided on the eighth section 108, and the second three-...

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PUM

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Abstract

The invention discloses a refrigerating system. The refrigerating system comprises a mechanical refrigerating assembly, a natural cooling assembly and a cooling water flow path. The refrigerating assembly comprises a compressor, a condenser and an evaporator. The condenser and the evaporator are connected with the compressor. The natural cooling assembly comprises a natural cooling coil, an intermediate heat exchanger and a natural cooling flow path. The natural cooling flow path is arranged between the natural cooling coil and the intermediate heat exchanger so as to form cooling circulation between the natural cooling coil and the intermediate heat exchanger. The cooling water flow path is provided with a water inlet end and a water outlet end, and the cooling water flow path sequentially passes the intermediate heat exchanger and the evaporator. At least one part of the compressor, the evaporator and the intermediate heat exchanger are arranged on the inner side, and the condenser and the natural cooling coil are arranged on the outdoor side. The service life of the refrigerating system is long, and a natural cold source can be sufficiently utilized.

Description

technical field [0001] The invention relates to the refrigeration field, in particular to a refrigeration system. Background technique [0002] 1) In the traditional refrigeration system with natural cooling mode, the whole unit of a system is placed outdoors. When the outdoor ambient temperature is low enough (below 0°C), and due to some reasons (such as power failure, etc.) the pure water cycle or When the circulation of ethylene glycol solution fails to work, the solution in the evaporator or intermediate heat exchanger is very likely to freeze, causing the evaporator or intermediate heat exchanger to freeze, and their antifreeze problem becomes a fatal flaw of the system; 2) The traditional refrigeration system with natural cooling mode does not make full use of the natural cold source, and only relies on mechanical refrigeration cycle refrigeration, which has high operating costs; 3) When the traditional refrigeration system with natural cooling mode operates at low amb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25D1/02
CPCF25B1/00F25D1/02
Inventor 李超刘开胜
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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