Carbon dioxide refrigerating and heating double-effect unit

Abstract

The utility model discloses a carbon dioxide refrigerating and heating double-effect unit which comprises a refrigerating box, a net plate is fixedly installed in the refrigerating box, a carbon dioxide compressor is fixedly installed at the upper end of the net plate, and a first circulating pipe is fixedly installed on the side wall of the carbon dioxide compressor. A second circulating pipe connected with the carbon dioxide liquid storage tank is arranged on the side wall of the refrigeration box; a water cooling box is arranged between the first circulating pipe and the second circulating pipe, and an air cooling assembly used for heat dissipation and cooling is arranged on the side wall of the water cooling box. The contact area of carbon dioxide and cooling water is increased through the snakelike aluminum alloy heat conduction pipe, the heat exchange efficiency is improved, the interior of the water cooling box is refrigerated through the cold end of the semiconductor chilling plate, and the temperature of the heat conduction pipe and the temperature of the carbon dioxide in the heat conduction pipe are further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration equipment technical field especially relates to a carbon dioxide refrigeration heating double -effect unit. BACKGROUND

[0002] With the continuous development of industrial technology and the increasing environmental awareness, refrigeration and heating equipment is more and more widely used in various industries, and its performance, efficiency and environmental protection are also more and more high. The traditional refrigeration and heating technology adopts freon and other synthetic refrigerants. These refrigerants meet the demand of refrigeration and heating to some extent, but the negative impact on the environment cannot be ignored. Freon and other synthetic refrigerants are released into the atmosphere during use, causing damage to the ozone layer and exacerbating global warming.

[0003] Carbon dioxide has many advantages as a refrigerant. From the perspective of environmental impact, carbon dioxide is the most environmentally friendly refrigerant besides water and air. However, in traditional carbon dioxide refrigeration equipment, the heat exchange efficiency is often limited because the contact area between carbon dioxide and the cooling medium is limited, resulting in insufficient heat exchange. SUMMARY

[0004] The utility model discloses a carbon dioxide refrigeration heating double -effect unit, which increases the contact area between carbon dioxide and cooling water by adopting the serpentine aluminum alloy heat pipe, improves the heat exchange efficiency, and further reduces the temperature of the heat pipe and the carbon dioxide inside by the cold end of the semiconductor refrigeration sheet.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A carbon dioxide refrigeration heating double -effect unit, comprising a refrigeration tank, a net plate is fixedly installed inside the refrigeration tank, a carbon dioxide compressor is fixedly installed at the upper end of the net plate, a first circulating pipe is fixedly installed on the side wall of the carbon dioxide compressor, and a second circulating pipe connected with a carbon dioxide storage tank is arranged on the side wall of the refrigeration tank.

[0007] A water cooling tank is arranged between the first circulating pipe and the second circulating pipe, and a air cooling assembly for heat dissipation and cooling is arranged on the side wall of the water cooling tank.

[0008] A water cooling assembly for cooling the circulating pipe of carbon dioxide is arranged on the side wall of the refrigeration tank.

[0009] Preferably, the air cooling assembly comprises a heat dissipation shell fixedly installed on the side wall of the water cooling tank, and heat dissipation fans are fixedly installed at the upper and lower ends of the heat dissipation shell.

[0010] Preferably, a heat conduction pipe is fixedly installed in the interior of the water-cooled box, upper and lower ends of the heat conduction pipe are communicated with the first circulating pipe and the second circulating pipe respectively, and a semiconductor refrigeration sheet is embedded in the side wall of the water-cooled box.

[0011] Preferably, the hot end of the semiconductor refrigeration sheet faces outward and is provided with a plurality of longitudinal and transverse heat dissipation grooves at equal intervals, and the semiconductor refrigeration sheet is located in a heat dissipation shell.

[0012] Preferably, the water-cooled assembly comprises a water tank fixedly installed on the side wall of the refrigeration box, the water tank is communicated with the water-cooled box through a water conveying pipe, a water pump is fixedly installed at the lower end of the water tank, and the water pump is communicated with the water-cooled box through a backflow pipe.

[0013] Preferably, the heat conduction pipe is in a serpentine shape and is made of aluminum alloy.

[0014] The carbon dioxide refrigerating and heating dual-effect unit has the following beneficial effects:

[0015] The carbon dioxide refrigerating and heating dual-effect unit has the following beneficial effects:

[0016] The semiconductor refrigeration sheet embedded in the side wall of the water-cooled box cools the interior of the water-cooled box through the cold end, further reducing the temperature of the heat conduction pipe and the carbon dioxide in the heat conduction pipe; the hot end of the semiconductor refrigeration sheet is forcedly air-cooled through the plurality of heat dissipation grooves and the heat dissipation fan on the heat dissipation shell, ensuring continuous and efficient work of the semiconductor refrigeration sheet; and the inner wall of the heat dissipation shell is coated with a graphene coating, accelerating heat export and improving heat dissipation efficiency.

[0017] The carbon dioxide refrigerating and heating dual-effect unit has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 A structure diagram of the carbon dioxide refrigerating and heating dual-effect unit is provided.

[0019] Fig. 2 A structure diagram of the semiconductor refrigeration sheet of the carbon dioxide refrigerating and heating dual-effect unit is provided.

[0020] Fig. 3 A sectional view of the carbon dioxide refrigerating and heating dual-effect unit is provided.

[0021] In the figure: 1 refrigeration box, 2 water tank, 3 water pump, 4 return pipe, 5 water delivery pipe, 6 first circulation pipe, 7 water cooling box, 8 heat dissipation shell, 9 heat dissipation fan, 10 second circulation pipe, 11 heat conduction pipe, 12 semiconductor refrigeration sheet, 13 carbon dioxide compressor, 14 mesh plate. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail with specific examples. Other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of this specification. The present application can also be implemented or applied in other different embodiments, and various modifications or changes can be made to the details in this specification without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only show the components related to the present application in the drawings, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component in actual implementation can be randomly changed, and the component layout pattern can also be more complex.

[0024] Some exemplary embodiments of the present application are described for the purpose of illustration, and it should be understood that the present application can be implemented in other ways not specifically shown in the drawings.

[0025] REFERENCE Figs. 1-3 A carbon dioxide refrigeration and heating dual-effect unit, comprising a refrigeration box 1, a mesh plate 14 is fixedly installed inside the refrigeration box 1, the mesh plate 14 adopts a honeycomb structure design, which can disperse the vibration of the compressor and enhance the support stability, the upper end of the mesh plate 14 is fixedly installed with a carbon dioxide compressor 13, the side wall of the carbon dioxide compressor 13 is fixedly installed with a first circulation pipe 6, and the side wall of the refrigeration box 1 is provided with a second circulation pipe 10 connected with a carbon dioxide storage tank;

[0026] A water cooling box 7 is arranged between the first circulation pipe 6 and the second circulation pipe 10, and a high-pressure sealing flange is arranged at the interface between the first circulation pipe 6 and the second circulation pipe 10, so as to ensure the air tightness of the system under a working condition of 30 MPa or above. The water cooling box 7 is internally fixedly installed with a heat conduction pipe 11, the upper and lower ends of the heat conduction pipe 11 are communicated with the first circulation pipe 6 and the second circulation pipe 10 respectively, the heat conduction pipe 11 is arranged in a serpentine shape and is made of aluminum alloy, and a semiconductor refrigerating fin 12 is embedded in the side wall of the water cooling box 7, the hot end of the semiconductor refrigerating fin 12 faces outward, and a plurality of longitudinal and transverse heat dissipation grooves are arranged at equal intervals, the semiconductor refrigerating fin 12 is located in a heat dissipation shell 8, the surface of the heat conduction pipe 11 is subjected to an anodic oxidation treatment, so as to improve the corrosion resistance; the serpentine structure design can improve the heat exchange efficiency between the flowing carbon dioxide and the cooling water by more than 40%; the depth of the heat dissipation grooves of the semiconductor refrigerating fin 12 is 2 mm, the interval is 5 mm, and the hot end temperature can be controlled below 60℃ by forced air cooling; and the inner wall of the heat dissipation shell 8 is coated with a graphene coating to accelerate heat conduction.

[0027] The side wall of the water cooling box 7 is provided with an air cooling assembly for heat dissipation and cooling, and the air cooling assembly comprises a heat dissipation shell 8 fixedly installed on the side wall of the water cooling box 7, and heat dissipation fans 9 are fixedly installed at the upper and lower ends of the heat dissipation shell 8.

[0028] The side wall of the refrigeration box 1 is provided with a water cooling assembly for cooling the circulation pipeline of carbon dioxide, and the water cooling assembly comprises a water tank 2 fixedly installed on the side wall of the refrigeration box 1, the water tank 2 and the water cooling box 7 are communicated through a water conveying pipe 5, and a water pump 3 is fixedly installed at the lower end of the water tank 2 and communicated with the water cooling box 7 through a backflow pipe 4.

[0029] Working principle:

[0030] The carbon dioxide at the upper end of the mesh plate 14 in the refrigeration box 1 is compressed by the carbon dioxide compressor 13. The compressed carbon dioxide enters the water cooling box 7 through the first circulation pipe 6, and in the water cooling box 7, the compressed carbon dioxide exchanges heat with the outer wall of the aluminum alloy heat conduction pipe 11 arranged in a serpentine shape. At the same time, the semiconductor refrigerating fin 12 works, its cold end cools the inside of the water cooling box 7, further reducing the temperature of the heat conduction pipe 11 and the carbon dioxide inside it, while the hot end of the semiconductor refrigerating fin 12 is cooled through the multiple heat dissipation grooves and heat dissipation fans 9 on the heat dissipation shell 8, ensuring the continuous and efficient work of the semiconductor refrigerating fin 12, and the carbon dioxide cooled by the water cooling box 7 enters the carbon dioxide storage tank through the second circulation pipe 10 for storage or further use;

[0031] The water in the water cooling box 7 is pumped into the water tank 2 by the water pump 3 and the backflow pipe 4, the water in the water tank 2 flows into the water cooling box 7 through the water conveying pipe 5, forming a closed loop water cooling system, ensuring the continuous cooling capacity of the water cooling box 7, and enhancing the cooling effect of the heat conduction pipe 11.

[0032] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used only to distinguish similar objects and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be implemented, for example, in an order other than that illustrated or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but can include other steps or units that are not clearly listed or inherent to such processes, methods, products, or apparatuses.

[0033] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or changes within the technical range disclosed by the present application, should be covered within the protection scope of the present application.

Claims

1. A carbon dioxide refrigeration and heat pump double-effect unit, characterized by: Including refrigeration box (1), the inside of refrigeration box (1) is fixedly installed with net board (14), the upper end of net board (14) is fixedly installed with carbon dioxide compressor (13), the side wall of carbon dioxide compressor (13) is fixedly installed with first circulating pipe (6), the side wall of refrigeration box (1) is provided with second circulating pipe (10) connected with carbon dioxide storage tank; Water cooling tank (7) is arranged between the first circulating pipe (6) and the second circulating pipe (10), and the side wall of the water cooling tank (7) is provided with a wind cooling assembly for heat dissipation and cooling. The side wall of the refrigeration box (1) is provided with a water cooling assembly for cooling the circulating pipeline of carbon dioxide.

2. The carbon dioxide refrigeration and heat supply double-effect unit according to claim 1, characterized in that, The wind cooling assembly comprises a heat dissipation shell (8) fixedly installed on the side wall of the water cooling tank (7), and heat dissipation fans (9) are fixedly installed on the upper and lower ends of the heat dissipation shell (8).

3. A CO2 refrigeration and heat supply double-effect unit according to claim 2, characterized in that, The water cooling tank (7) is fixedly installed with a heat conduction pipe (11), and the upper and lower ends of the heat conduction pipe (11) are respectively communicated with the first circulating pipe (6) and the second circulating pipe (10), and the side wall of the water cooling tank (7) is embedded with a semiconductor refrigeration sheet (12).

4. A CO2 refrigeration and heat supply double-effect unit according to claim 3, characterized in that, The hot end of the semiconductor refrigeration sheet (12) faces outward, and a plurality of longitudinal and transverse heat dissipation grooves are arranged at equal intervals, and the semiconductor refrigeration sheet (12) is located in the heat dissipation shell (8).

5. The carbon dioxide refrigeration and heat dual-effect unit according to claim 1, characterized in that, The water cooling assembly comprises a water tank (2) fixedly installed on the side wall of the refrigeration box (1), the water tank (2) and the water cooling tank (7) are communicated through a water conveying pipe (5), the lower end of the water tank (2) is fixedly installed with a water pump (3), and the water pump (3) is communicated with the water cooling tank (7) through a backflow pipe (4).

6. A CO2 refrigeration and heat supply double-effect unit according to claim 3, characterized in that, The heat conduction pipe (11) is in a serpentine shape and made of aluminum alloy.

Images