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Compressed air heat exchange system

A technology of heat exchange system and compressed air, which is applied in the direction of compressors, irreversible cycle compression machines, and reversible cycle compression machines, etc., which can solve environmental hazards and other problems, achieve reduced production costs, reliable system operation, and long life Effect

Pending Publication Date: 2020-02-11
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most refrigerants (such as Freon) are harmful to the environment, such as the greenhouse effect, the hole in the ozone layer, etc.

Method used

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  • Compressed air heat exchange system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A compressed air heat exchange system includes: an air refrigeration flow path 100 . Such as figure 1 and figure 2 As shown, the air refrigeration flow path 100 is provided with a first compressor 11 , a second compressor 12 , and an expander 13 . The first compressor 11 and the second compressor 12 are used to increase the temperature and pressure of the air flowing through the air cooling flow path 100 . The expander 13 is used for reducing the temperature and pressure of the air flowing through the air cooling flow path 100 . The inlet and outlet of the air cooling flow path 100 respectively form the air return port 104 and the air outlet port 102 of the compressed air heat exchange system.

[0069] Wherein, the expander 13 is coaxially connected with the second compressor 12 through a connecting shaft 141, such as figure 1 and figure 2 As shown, and the air inlet of the second compressor 12 communicates with the air outlet of the first compressor 11 .

[007...

Embodiment 2

[0096] On the basis of the first embodiment, further, the connecting shaft 141 is sleeved with a dynamic pressure gas bearing 15, such as image 3 , Figure 4 and Figure 9 shown.

[0097] This solution uses the dynamic pressure gas bearing 15, relies on the high-speed relative motion between the shaft and the bearing to generate a pressure gas model with dynamic pressure lubrication, has low assembly requirements, resists rotor misalignment, and has good stability at high speed. Compared with static pressure gas bearings and magnetic suspension bearings, the structure is simpler, the cost is lower, and it is more suitable for household air conditioners.

[0098] Specifically, such as Figure 10 and Figure 11 As shown, the dynamic pressure gas bearing 15 includes a corrugated foil type foil bearing, and the corrugated foil type foil bearing includes: a bearing seat 151 and multi-layer foils. The inner wall of the bearing seat 151 defines a fixing groove. The multi-layer...

Embodiment 3

[0105] Embodiment three (not shown in the figure)

[0106] The difference from Embodiment 1 is that the first control valve 18 includes: a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve. The second control valve 19 includes: a fifth one-way valve, a sixth one-way valve, a seventh one-way valve and an eighth one-way valve.

[0107] Wherein, the first one-way valve is located between the air return port 104 and the air inlet of the expander 13 , and is used to make the air return port 104 conduct one-way to the air inlet of the expander 13 .

[0108] The second one-way valve is located between the outlet of the second control valve 19 and the inlet of the first compressor 11 , and is used for one-way communication from the outlet of the second control valve 19 to the inlet of the first compressor 11 .

[0109] The third one-way valve is located between the air return port 104 and the air inlet of the first compressor 11 , and is us...

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Abstract

The invention provides a compressed air heat exchange system. The system involves an air refrigeration flow path, wherein a first compressor, a second compressor and an expansion machine are arrangedon the air refrigeration flow path, the first compressor and the second compressor are used for heating and boosting air flowing through the air refrigeration flow path, the expansion machine is usedfor cooling and pressure-reducing the air flowing through the air refrigeration flow path, and an inlet and an outlet of the air refrigeration flow path form an air return port and an air outlet of the compressed air heat exchange system respectively; and the expansion machine is coaxially connected with the second compressor through a connecting shaft, and an air inlet of the second compressor communicates with an air outlet of the first compressor. Due to the fact that the air is used as a refrigerant, and safety and pollution-free are achieved, harm to the environment is avoided, and the production cost and the later maintenance cost are reduced. The expansion ratio and the enthalpy drop of the expansion machine can be improved through double-stage compression, so that the working capacity of the expansion machine is improved, the unit refrigerating capacity is increased, and the heating capacity of the system is also improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning equipment, in particular to a compressed air heat exchange system. Background technique [0002] At present, most of the existing refrigeration devices such as air conditioners use the latent heat of phase change of the refrigerant to transmit heat to the room for heating or take away the heat of the room for cooling. However, most refrigerants (such as Freon) are harmful to the environment, such as the greenhouse effect and the hole in the ozone layer. Contents of the invention [0003] In order to solve at least one of the above technical problems, the purpose of the present invention is to provide a compressed air heat exchange system. [0004] In order to achieve the above object, the present invention provides a compressed air heat exchange system, comprising: an air cooling flow path, a first compressor, a second compressor, and an expander are arranged on the air cooling flow pa...

Claims

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Application Information

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IPC IPC(8): F25B1/10F25B9/00F25B13/00F25B41/04F25B41/20
CPCF25B1/10F25B9/004F25B13/00F25B2313/02742F25B2313/0292F25B2400/07F25B2600/25F25B41/20
Inventor 魏留柱白崇俨朱兴丹赵帅
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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