Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof

A refrigeration system, evaporative technology, applied in the directions of refrigerators, air conditioning systems, refrigeration components, etc., can solve the problems of large compression ratio, complex control and high cost of air-cooled ice-making units, to improve heat exchange efficiency, reduce costs, The effect of improving efficiency

Inactive Publication Date: 2012-06-20
JIANGSU QICAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] The invention overcomes the problems that the conventional refrigeration unit cannot work under the ice-making condition, the air-cooled ice-making unit has a large compression ratio, high cost, complicated control, etc., can reduce the cost of the refrigeration system, and improve the ice-making efficiency and operation stability

Method used

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  • Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof
  • Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof
  • Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof

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Effect test

Embodiment 1

[0058] Such as figure 1 As shown, the present invention includes a refrigeration unit 1, a terminal device 3, a first chilled water pump 2, and the first chilled water pump 2, the evaporator 1-2 of the refrigeration unit 1, and the terminal device 3 are sequentially connected in a loop through a first pipeline 4.

[0059] The third pipeline 5 is bypassed on the first pipeline 4 between the terminal device 3 and the first chilled water pump 2, and the other end of the third pipeline 5 is bypassed on the first pipeline 4 between the terminal device 3 and the refrigeration unit 1 , the second chilled water pump 6 and the thermal fluid passage 7-1 of the heat exchange device 7 are connected in series on the third pipeline 5 .

[0060] The cold fluid channel 7 - 2 of the heat exchange device 7 , the (variable flow type) third chilled water pump 8 and the ice storage tank 9 are connected in a loop through a second pipeline 10 .

[0061] The evaporator 13 - 1 of the ice making unit ...

Embodiment 2

[0099] Such as figure 2 As shown, the others are the same as those in Embodiment 1, but the third chilled water pump 8 is a common chilled water pump.

[0100] In addition, the fifth pipeline 16 is connected between the second pipeline 10 at both ends of the cold fluid passage 7-2 of the heat exchange device 7, and the third valve 17 is connected in series on the fifth pipeline 16. A fourth valve 18 is connected in series on the second pipeline 10 between the cold fluid channels 7-2 of the device 7 .

[0101] The flow rate of the primary chilled water entering the cold fluid channel 7-2 of the heat exchange device 7 is adjusted through the valve 17 and the valve 18 to adjust the temperature of the secondary chilled water in the hot fluid channel 7-1 of the heat exchange device 7.

Embodiment 3

[0103] Such as image 3 As shown, the others are the same as those in Embodiment 1, but the third chilled water pump 8 is a common chilled water pump.

[0104] In addition, a fifth pipeline 16 is connected between the second pipeline 10 connecting both ends of the cold fluid channel 7 - 2 of the heat exchange device 7 , and a three-way valve 17 is connected in series at the intersection of the fifth pipeline 16 and the second pipeline 10 .

[0105] The flow rate of the primary chilled water entering the cold fluid channel 7 - 2 of the heat exchange device 7 is adjusted through the three-way valve 17 to adjust the temperature of the secondary chilled water in the hot fluid channel 7 - 1 of the heat exchange device 7 .

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Abstract

The invention provides a direct-evaporating type ice cold accumulation refrigerating system and a refrigerating method thereof, relating to the technical field of refrigerating air conditioners. The refrigerating system comprises a refrigerating unit, an end device, an ice making unit, a heat exchanging device and an ice accumulation tank, wherein an evaporator of the ice making unit is arranged in the ice accumulation tank, the ice accumulation tank is connected with a clod fluid channel of the heat exchanging device, a hot fluid channel of the heat exchanging device is connected with the end device, a pipeline is arranged on a loop between a condenser of the ice making unit and the evaporator of the refrigerating unit and a corresponding circulating pump and control valve are arranged on the pipeline. Cooling water of the condenser of the ice making unit is supplied after being precooled to 2-20 DEG C by the refrigerating unit. The problem that the conventional refrigerating unit cannot work on an ice making operation condition and the problem that an air-cooling ice maker has a large compression ratio, is high in cost and is complicated to control can be overcome, the cost of a refrigerating system can be reduced and ice making efficiency and operational stability can be improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to the technical field of refrigeration and air conditioning. Background technique [0002] Conventional refrigeration systems are generally composed of refrigeration equipment, cold source devices, terminal devices, auxiliary equipment, connecting pipelines, and control systems. The most widely used refrigeration equipment is a vapor compression refrigeration unit, which consists of an evaporator, a compressor, a condenser, and a throttling device connected through copper pipes to form a closed circuit, and the circuit is filled with refrigerant. When the refrigeration unit is working, the refrigerant circulates in the evaporator, compressor, condenser, and throttling device to perform four processes of evaporation, compression, condensation, and throttling, and transfers heat from the evaporator to the condenser. [0003] In a typical refrigeration system, the refrigerating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F25B41/00F25B41/04
Inventor 周必安陈振乾
Owner JIANGSU QICAI TECH
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