Waterway structure of air cooler of CO2 transcritical refrigerating unit

Abstract

The utility model relates to the technical field of refrigerating systems, in particular to a CO2 transcritical refrigerating unit air cooler waterway structure which comprises a cooling liquid inlet chamber, a gas inlet chamber is fixedly connected to the upper surface of the cooling liquid inlet chamber, a rotating shaft is movably connected to the inner bottom of the cooling liquid inlet chamber, and the top of the rotating shaft is movably connected with the top of the gas inlet chamber. A first impeller is fixedly connected to the outer surface of the rotating shaft, a second impeller is further fixedly connected to the outer surface of the rotating shaft, a first connecting pipe is fixedly connected to the left side wall of the cooling liquid inlet chamber, a first cooling chamber is fixedly connected to the end, away from the cooling liquid inlet chamber, of the first connecting pipe, and a gas cooling pipe is fixedly connected to the left side wall of the gas inlet chamber; and the gas cooling pipe is positioned above the first cooling chamber. According to the carbon dioxide cooling device, the introduced carbon dioxide can be cooled, the carbon dioxide can be compressed, meanwhile, the impact generated when cooling liquid is added can be reduced, and the stability of a water path structure is improved.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration systems, in particular to a water channel structure of an air cooler of a CO2 transcritical refrigeration unit. Background Art

[0002] Transcritical CO2 (carbon dioxide) technology is a pure natural fluid and an efficient thermodynamic cycle formed by utilizing gas thermal energy. It has huge advantages in terms of energy consumption, equivalent carbon content and environmental benefits. When CO2 is used for refrigeration, it utilizes the heat absorption and expansion of low-temperature CO2, and then the expanded CO2 gas is compressed to release heat so that it can be recycled and complete the absorption of heat.

[0003] When CO2 is cooled, coolant is used to absorb the heat in the gas. When the coolant is introduced, there will be a large impact force when it enters the pipeline. This impact force will affect the refrigeration equipment, causing the refrigeration equipment to shake, which is not conducive to the use of the equipment. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a water channel structure of an air cooler of a CO2 transcritical refrigeration unit.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water channel structure of an air cooler of a CO2 transcritical refrigeration unit, comprising a cooling liquid inlet chamber, the upper surface of the cooling liquid inlet chamber is fixedly connected to the gas inlet chamber, the inner bottom of the cooling liquid inlet chamber is movably connected to a rotating shaft, the top of the rotating shaft is movably connected to the top of the gas inlet chamber, the outer surface of the rotating shaft is fixedly connected to a first impeller, the first impeller is located inside the cooling liquid inlet chamber, the first impeller is located at the center of the cooling liquid inlet chamber, the outer surface of the rotating shaft is also fixedly connected to a second impeller, the second impeller is located inside the gas inlet chamber, the second impeller is eccentrically arranged inside the gas inlet chamber, the left side wall of the cooling liquid inlet chamber is fixedly connected to a first connecting pipe, the end of the first connecting pipe away from the cooling liquid inlet chamber is fixedly connected to the first cooling chamber, the left side wall of the gas inlet chamber is fixedly connected to a gas cooling pipe, and the gas cooling pipe is located above the first cooling chamber.

[0006] As a further description of the above technical solution:

[0007] A liquid inlet pipe is fixedly connected to the right side wall of the coolant inlet chamber, one end of the liquid inlet pipe is located inside the coolant inlet chamber, and the other end of the liquid inlet pipe is located outside the coolant inlet chamber.

[0008] As a further description of the above technical solution:

[0009] An air intake pipe is fixedly connected to the right side wall of the gas inlet chamber, one end of the air intake pipe is located inside the gas inlet chamber, and the other end of the air intake pipe is located outside the gas inlet chamber.

[0010] As a further description of the above technical solution:

[0011] The gas cooling pipe is bent, and the upper surface of the first cooling chamber is provided with fins, and the number of the fins is multiple, and the fins are located at the bend of the gas cooling pipe.

[0012] As a further description of the above technical solution:

[0013] The upper surface of the first cooling chamber is fixedly connected with a second connecting pipe, and the top of the second connecting pipe is fixedly connected with a second cooling chamber.

[0014] As a further description of the above technical solution:

[0015] The interior of the second cooling chamber is connected to the interior of the first cooling chamber through a second connecting pipe. The second cooling chamber is located above the gas cooling pipe, and the lower surface of the second cooling chamber is in contact with the outer surface of the gas cooling pipe.

[0016] As a further description of the above technical solution:

[0017] A drain pipe is fixedly connected to the top of the second cooling chamber.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, the water circuit structure of the air cooler of the CO2 transcritical refrigeration unit passes through the cooling liquid inlet chamber, the rotating shaft, the first impeller, the gas inlet chamber, and the second impeller. When in use, low-temperature cooling liquid is introduced into the liquid inlet pipe. When the cooling liquid enters the cooling liquid inlet chamber, it will push the first impeller to rotate. The rotation of the first impeller will drive the rotating shaft to rotate and then drive the second impeller to rotate. The second impeller is eccentrically arranged in the gas inlet chamber, so that the second impeller can compress the carbon dioxide gas entering the gas inlet chamber when rotating, which is convenient for the cooling and subsequent compression treatment of the carbon dioxide gas. The water circuit structure of the air cooler of the CO2 transcritical refrigeration unit can not only cool the introduced carbon dioxide, but also compress the carbon dioxide, which is convenient for the subsequent compression equipment to continue to process the carbon dioxide.

[0020] 2. Compared with the prior art, the water channel structure of the air cooler of the CO2 transcritical refrigeration unit enters the chamber through the coolant, the rotating shaft, and the first impeller. When in use, the coolant added into the chamber will first collide with the first impeller, thereby reducing the impact when the coolant is added, thereby reducing vibration and improving the stability of the water channel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the water circuit structure of the air cooler of a CO2 transcritical refrigeration unit proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure from a first perspective of a water circuit structure of an air cooler of a CO2 transcritical refrigeration unit proposed by the utility model;

[0023] Figure 3 A schematic diagram of the internal structure of a CO2 transcritical refrigeration unit air cooler water circuit structure from a second perspective proposed by the utility model;

[0024] Figure 4 This is an exploded view of the water circuit structure of an air cooler of a CO2 transcritical refrigeration unit proposed by the utility model.

[0025] Legend:

[0026] 1. Coolant inlet chamber; 2. Rotating shaft; 3. First impeller; 4. Liquid inlet pipe; 5. Gas inlet chamber; 6. Second impeller; 7. Air inlet pipe; 8. First connecting pipe; 9. First cooling chamber; 10. Second connecting pipe; 11. Fins; 12. Second cooling chamber; 13. Drain pipe; 14. Gas cooling pipe. DETAILED DESCRIPTION

[0027] Reference Figure 1-4The utility model provides a water circuit structure of a CO2 transcritical refrigeration unit air cooler: it includes a coolant inlet chamber 1, the coolant first enters the coolant inlet chamber 1 and then cools the gas, the upper surface of the coolant inlet chamber 1 is fixedly connected with a gas inlet chamber 5, and the gas can be pre-compressed after entering the gas inlet chamber 5, the inner bottom of the coolant inlet chamber 1 is movably connected with a rotating shaft 2, the top of the rotating shaft 2 is movably connected to the top of the gas inlet chamber 5, the outer surface of the rotating shaft 2 is fixedly connected with a first impeller 3, the first impeller 3 is located inside the coolant inlet chamber 1, the first impeller 3 is located at the center of the coolant inlet chamber 1, the outer surface of the rotating shaft 2 is also fixedly connected with a second impeller 6, the second impeller 6 is located inside the gas inlet chamber 5, and the first impeller 3 will drive the rotating shaft 2 when it rotates. The shaft 2 rotates, thereby driving the second impeller 6 to rotate. The second impeller 6 is eccentrically arranged inside the gas inlet chamber 5, so that the gas can be pre-compressed when the second impeller 6 rotates, which is convenient for the gas to release heat. The left side wall of the coolant inlet chamber 1 is fixedly connected with a first connecting pipe 8, and the end of the first connecting pipe 8 away from the coolant inlet chamber 1 is fixedly connected with a first cooling chamber 9. The coolant enters the first cooling chamber 9 from the inside of the coolant inlet chamber 1 through the first connecting pipe 8. The left side wall of the gas inlet chamber 5 is fixedly connected with a gas cooling pipe 14, and the gas cooling pipe 14 is located above the first cooling chamber 9. The surface of the gas cooling pipe 14 fits with the surface of the first cooling chamber 9, so that the coolant inside the first cooling chamber 9 can absorb the heat of the gas inside the gas cooling pipe 14, which is convenient for gas cooling.

[0028] A liquid inlet pipe 4 is fixedly connected to the right side wall of the coolant inlet chamber 1, one end of the liquid inlet pipe 4 is located inside the coolant inlet chamber 1, and the other end of the liquid inlet pipe 4 is located outside the coolant inlet chamber 1, so as to facilitate the addition of coolant into the coolant inlet chamber 1. An air inlet pipe 7 is fixedly connected to the right side wall of the gas inlet chamber 5, one end of the air inlet pipe 7 is located inside the gas inlet chamber 5, and the other end of the air inlet pipe 7 is located outside the gas inlet chamber 5, so as to facilitate the addition of gas into the gas inlet chamber 5.

[0029] The gas cooling tube 14 is bent, and the upper surface of the first cooling chamber 9 is provided with fins 11, and the number of fins 11 is multiple. The fins 11 are located at the bend of the gas cooling tube 14, which can increase the heat exchange rate.

[0030] A second connecting pipe 10 is fixedly connected to the upper surface of the first cooling chamber 9, and a second cooling chamber 12 is fixedly connected to the top of the second connecting pipe 10. The interior of the second cooling chamber 12 is communicated with the interior of the first cooling chamber 9 through the second connecting pipe 10. The second cooling chamber 12 is located above the gas cooling pipe 14, and the lower surface of the second cooling chamber 12 is in contact with the outer surface of the gas cooling pipe 14. The second cooling chamber 12 cooperates with the first cooling chamber 9 to better cool the gas. A drain pipe 13 is fixedly connected to the top of the second cooling chamber 12.

[0031] Working principle: When in use, low-temperature coolant is introduced into the liquid inlet pipe 4. When the coolant enters the coolant inlet chamber 1, it will push the first impeller 3 to rotate. The rotation of the first impeller 3 will drive the rotating shaft 2 to rotate and then drive the second impeller 6 to rotate. The second impeller 6 is eccentrically arranged in the gas inlet chamber 5, so that the second impeller 6 can compress the carbon dioxide gas entering the gas inlet chamber 5 when rotating, which is convenient for the cooling and subsequent compression treatment of the carbon dioxide gas. The water channel structure of the CO2 transcritical refrigeration unit air cooler can not only cool the introduced carbon dioxide, but also compress the carbon dioxide, which is convenient for the subsequent compression equipment to continue to process the carbon dioxide. At the same time, the coolant added to the coolant inlet chamber 1 will first collide with the first impeller 3, thereby reducing the impact when the coolant is added, thereby reducing vibration and improving the stability of the water channel structure.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water circuit structure of an air cooler of a CO2 transcritical refrigeration unit, comprising a cooling liquid inlet chamber (1), characterized in that: The upper surface of the cooling liquid inlet chamber (1) is fixedly connected to the gas inlet chamber (5); the inner bottom of the cooling liquid inlet chamber (1) is movably connected to the rotating shaft (2); the top of the rotating shaft (2) is movably connected to the top of the gas inlet chamber (5); the outer surface of the rotating shaft (2) is fixedly connected to the first impeller (3); the first impeller (3) is located inside the cooling liquid inlet chamber (1); the first impeller (3) is located at the center of the cooling liquid inlet chamber (1); the outer surface of the rotating shaft (2) is also fixedly connected to the second The impeller (6) is located inside the gas inlet chamber (5), and the second impeller (6) is eccentrically arranged inside the gas inlet chamber (5). The left side wall of the coolant inlet chamber (1) is fixedly connected to a first connecting pipe (8), and the end of the first connecting pipe (8) away from the coolant inlet chamber (1) is fixedly connected to a first cooling chamber (9). The left side wall of the gas inlet chamber (5) is fixedly connected to a gas cooling pipe (14), and the gas cooling pipe (14) is located above the first cooling chamber (9).

2. A CO2 transcritical refrigeration unit air cooler water circuit structure according to claim 1, characterized in that: A liquid inlet pipe (4) is fixedly connected to the right side wall of the coolant inlet chamber (1), one end of the liquid inlet pipe (4) is located inside the coolant inlet chamber (1), and the other end of the liquid inlet pipe (4) is located outside the coolant inlet chamber (1).

3. The water circuit structure of a CO2 transcritical refrigeration unit air cooler according to claim 1, characterized in that: An air intake pipe (7) is fixedly connected to the right side wall of the gas inlet chamber (5), one end of the air intake pipe (7) is located inside the gas inlet chamber (5), and the other end of the air intake pipe (7) is located outside the gas inlet chamber (5).

4. The water circuit structure of a CO2 transcritical refrigeration unit air cooler according to claim 1, characterized in that: The gas cooling pipe (14) is arranged in a curved shape, and the upper surface of the first cooling chamber (9) is provided with fins (11), and the number of fins (11) is multiple, and the fins (11) are located at the curved part of the gas cooling pipe (14).

5. The water circuit structure of a CO2 transcritical refrigeration unit air cooler according to claim 1, characterized in that: The upper surface of the first cooling chamber (9) is fixedly connected to a second connecting pipe (10), and the top of the second connecting pipe (10) is fixedly connected to a second cooling chamber (12).

6. A CO2 transcritical refrigeration unit air cooler water circuit structure according to claim 5, characterized in that: The interior of the second cooling chamber (12) is connected to the interior of the first cooling chamber (9) via a second connecting pipe (10); the second cooling chamber (12) is located above the gas cooling pipe (14), and the lower surface of the second cooling chamber (12) is in contact with the outer surface of the gas cooling pipe (14).

7. The water circuit structure of a CO2 transcritical refrigeration unit air cooler according to claim 5, characterized in that: A drainage pipe (13) is fixedly connected to the top of the second cooling chamber (12).

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