A new type of high-efficiency solar cooling device

Abstract

This utility model discloses a novel high-efficiency solar cooling device, belonging to the technical field of solar cooling devices. The main body of the solar absorption cooling device includes a cooling unit and a solar collector, which are interconnected by a pipe. A support leg and an adjusting column are fixedly connected to the surface of the cooling unit. One end of the support leg and the adjusting column is rotatably connected to the bottom of the solar collector. A vacuum tube is provided on the surface of the solar collector. A feeding mechanism is fixedly installed on the surface of the cooling unit. This novel high-efficiency solar cooling device can add organic working fluid through a working medium addition tank, thereby mixing it with the working fluid inside the solar cooling device. This allows the cooling device to maintain high cooling efficiency while reducing the risk of corrosion and crystallization. Furthermore, the vacuum tube and nanoparticle addition box can improve the heat collection efficiency and heat exchange efficiency of the solar collector.

Description

Technical Field

[0001] This utility model relates to the field of solar refrigeration device technology, and more specifically, to a new type of high-efficiency solar refrigeration device. Background Technology

[0002] Solar-driven absorption refrigeration technology is a technology that uses solar energy as a heat source to drive a refrigeration cycle. This technology absorbs refrigerant vapor through an absorbent and uses the heat energy provided by a solar collector to separate the refrigerant from the absorbent, thereby achieving a refrigeration effect.

[0003] Currently, commonly used solar absorption refrigeration devices may experience crystallization problems during use due to the low temperature environment in Inner Mongolia Autonomous Region during winter, and their heat collection efficiency and heat exchange efficiency are low. For example, a solar absorption refrigeration device disclosed in publication number CN117906303 A includes a refrigeration unit body and multiple solar heat collection tubes. The top ends of the multiple solar heat collection tubes are connected to a first connecting strip, and the bottom ends of the multiple solar heat collection tubes are fixedly connected to a second connecting strip.

[0004] As can be seen from the above-mentioned publicly available scheme, although the solar absorption cooling device can protect and clean the surface of the solar collector tube, when used in the low-temperature environment of winter in Inner Mongolia Autonomous Region in the north, its working fluid may crystallize, and the heat exchange efficiency is low. At the same time, the heat collection effect of the solar collector tube is limited. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel high-efficiency solar cooling device. This novel high-efficiency solar cooling device can add organic working fluid through a working medium addition tank, thereby mixing it with the working fluid inside the solar cooling device. This allows the cooling device to maintain high cooling efficiency while reducing the risk of corrosion and crystallization. Furthermore, the addition of vacuum tubes and nanoparticle addition boxes can improve the heat collection efficiency and heat exchange efficiency of the solar collector.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A novel high-efficiency solar cooling device includes a solar absorption cooling device body, which comprises a cooling unit and a solar collector. The cooling unit and the solar collector are interconnected by a pipe. Support legs and adjusting columns are fixedly connected to the surface of the cooling unit. One end of the support legs and adjusting columns is rotatably connected to the bottom of the solar collector. A vacuum tube is provided on the surface of the solar collector. A feeding mechanism is fixedly installed on the surface of the cooling unit. This novel high-efficiency solar cooling device allows the addition of organic working fluid through a working medium addition tank, which mixes with the working fluid inside the solar cooling device. This enables the cooling unit to maintain high cooling efficiency while reducing the risk of corrosion and crystallization. Furthermore, the vacuum tube and nanoparticle addition box can improve the heat collection efficiency and heat exchange efficiency of the solar collector.

[0008] Furthermore, the feeding mechanism includes a working medium adding tank, the surface of which is provided with a first transparent plate, a metering pump is fixedly installed at the bottom of the working medium adding tank, a feeding pipe is fixedly connected to the surface of the metering pump, a tank cover is fastened to one end of the working medium adding tank, and the feeding pipe is fixedly connected to the working fluid circulation pipeline inside the refrigeration unit, which can add organic working fluid to the original working fluid for mixing, thereby reducing the risk of corrosion and crystallization.

[0009] Furthermore, a handle is provided on the side of the can lid, a limiting tube is fixedly sleeved on the surface of the can lid, one end of the limiting tube is fixedly connected to an adding tube, one end of the adding tube is fixedly connected to a nanoparticle adding box, an intelligent valve is fixedly installed on the surface of the adding tube, and the nanoparticle adding box is connected to the working medium adding tank, so that nanoparticles can be added into the working medium to improve heat exchange efficiency.

[0010] Furthermore, the vacuum tube includes a tube body, a positioning groove is provided on the end face of the tube body, a connecting hole is opened on the inner wall of the positioning groove, and a surface layer is provided on the surface of the tube body. The surface layer is a high-entropy alloy-based coating. Using a coating with high absorptivity and low emissivity can increase the heat collection efficiency.

[0011] Furthermore, one end of both the support leg and the adjusting column is fixedly connected to a bearing seat, and one end of the bearing seat is rotatably connected to a connecting plate. The surface of the connecting plate has a connecting hole, and the adjusting column is an electric telescopic rod that can adjust and optimize the tilt angle of the solar collector.

[0012] Furthermore, a second transparent plate is provided on the surface of the nanoparticle adding box, and an end cap is threaded to one end of the nanoparticle adding box. The second transparent plate facilitates observation of the remaining amount of nanoparticles inside.

[0013] Furthermore, the connecting hole is a strip-shaped hole, and the inner wall of the connecting hole is movably connected with screws, so that the support leg, the adjusting column and the solar collector can be disassembled and assembled separately.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution allows the addition of organic working medium through a working medium addition tank, which mixes with the working medium inside the solar cooling device, enabling the cooling device to maintain high cooling efficiency while reducing the risk of corrosion and crystallization.

[0016] (2) This scheme can improve the heat collection efficiency and heat exchange efficiency of solar collectors by setting up vacuum tubes and nanoparticle addition boxes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the vacuum tube structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting column structure of this utility model;

[0021] Figure 5 for Figure 2 A schematic diagram of the nanoparticle addition box and can lid installation structure.

[0022] Explanation of the labels in the diagram:

[0023] 1. Solar absorption refrigeration unit body; 11. Refrigeration unit body; 12. Solar collector; 13. Support leg; 14. Adjusting column; 15. Shaft seat; 16. Connecting plate; 17. Connecting hole; 2. Feeding mechanism; 21. Working medium adding tank; 22. Metering pump; 23. Feeding pipe; 24. First transparent plate; 25. Tank cover; 26. Handle; 3. Nanoparticle adding box; 31. Adding pipe; 32. Limiting pipe; 33. Smart valve; 34. End cap; 35. Second transparent plate; 4. Vacuum tube; 41. Tube body; 42. Surface layer; 43. Positioning groove; 44. Connecting hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5 A novel high-efficiency solar cooling device includes a solar absorption cooling device body 1. The solar absorption cooling device body 1 is also equipped with automatic cleaning, dustproof, and anti-freezing components, which can clean, prevent dust, and prevent freezing of its surface. Its composition and working principle are existing technologies. The solar absorption cooling device body 1 includes a cooling unit body 11 and a solar collector 12. The solar collector 12 is a vacuum tube collector, and its heat collection efficiency can reach over 70% under national standard testing conditions, making it suitable for application in Inner Mongolia. By using a coating material with high absorptivity and low emissivity, and optimizing the tilt angle and azimuth angle of the collector, the heat collection efficiency can be further improved. The cooling unit body 11 and the solar collector 12 are interconnected by pipes. Support legs 13 and adjusting columns 14 are fixedly connected to the surface of the cooling unit body 11. One end of 14 is rotatably connected to the bottom of the solar collector 12. The surface of the solar collector 12 is provided with a vacuum tube 4. The surface of the refrigerator body 11 is fixedly installed with a feeding mechanism 2. The feeding mechanism 2 includes a working medium adding tank 21. The surface of the working medium adding tank 21 is provided with a first transparent plate 24. The bottom of the working medium adding tank 21 is fixedly installed with a metering pump 22. The surface of the metering pump 22 is fixedly connected with a feeding pipe 23. One end of the working medium adding tank 21 is fastened with a tank cover 25. The feeding pipe 23 is fixedly connected to the internal working fluid circulation pipeline of the refrigerator body 11. Organic working fluid can be added to the original working fluid for mixing. The commonly used working fluid in solar refrigeration devices is water-lithium bromide. Organic working fluids are methanol-water and ethanol-water. Mixing water-lithium bromide with a small amount of organic working fluid can reduce corrosion and crystallization risk while maintaining high refrigeration efficiency.

[0027] A handle 26 is provided on the side of the can lid 25. A limiting tube 32 is fixedly sleeved on the surface of the can lid 25. One end of the limiting tube 32 is fixedly connected to an adding tube 31. One end of the adding tube 31 is fixedly connected to a nanoparticle adding box 3. A smart valve 33 is fixedly installed on the surface of the adding tube 31. The smart valve 33 is a metering valve with a timer switch, model CWX-15N, which can automatically open and close the adding tube 31 and add a set amount of nanoparticles. The nanoparticle adding box 3 is connected to the working medium adding tank 21. It can add nanoparticles into the working medium to improve the heat exchange efficiency. The working medium with added nanoparticles forms a nanofluid. The introduction of nanofluid can increase the COP of the absorption refrigeration system by more than 10%. The vacuum tube 4 includes a tube body 41. A positioning groove 43 is provided on the end face of the tube body 41. A connecting hole 44 is opened on the inner wall of the positioning groove 43. A surface layer 42 is provided on the surface of the tube body 41. The surface layer 42 is a high-entropy alloy base coating. The use of a coating with high absorptivity and low emissivity can increase the heat collection efficiency.

[0028] One end of the support leg 13 and the adjusting column 14 is fixedly connected to a bearing 15. One end of the bearing 15 is rotatably connected to a connecting plate 16. The surface of the connecting plate 16 has a connecting hole 17. The adjusting column 14 is an electric telescopic rod that can adjust and optimize the tilt angle of the solar collector. The surface of the nanoparticle adding box 3 is provided with a second transparent plate 35. One end of the nanoparticle adding box 3 is threadedly connected to an end cap 34. The second transparent plate 35 facilitates observation of the remaining amount of nanoparticles inside. The connecting hole 17 is a strip-shaped hole. The inner wall of the connecting hole 17 is movably connected with a screw, so that the support leg 13, the adjusting column 14 and the solar collector 12 can be disassembled and assembled.

[0029] This novel high-efficiency solar cooling device can be equipped with a feeding mechanism 2. A suitable amount of organic working fluid is added to the original working fluid via a metering pump 22, mixing the original working fluid with a small amount of organic working fluid. This maintains high cooling efficiency while reducing the risk of corrosion and crystallization. Then, a suitable amount of nanoparticles are added via a smart valve 33, forming a nanofluid within the working fluid and improving heat exchange efficiency. Since nanoparticles are lost during use, the smart valve 33 allows for the timely and quantitative replenishment of nanoparticles to the working fluid. Furthermore, the vacuum tube 4 makes the solar collector 12 a vacuum tube collector, and the high absorptivity and low emissivity coating material effectively improves its heat collection efficiency. Organic working fluid can be added via a working medium addition tank 21, mixing with the working fluid inside the solar cooling device. This allows the cooling device to maintain high cooling efficiency while reducing the risk of corrosion and crystallization. The vacuum tube 4 and nanoparticle addition box 3 further enhance the heat collection and heat exchange efficiency of the solar collector 12.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A novel high-efficiency solar refrigeration device, comprising a solar absorption refrigeration device body (1), the solar absorption refrigeration device body (1) comprising a refrigeration machine body (11) and a solar heat collector (12), the refrigeration machine body (11) and the solar heat collector (12) being in communication with each other through a pipeline, characterized in that: The surface of the refrigerator body (11) is fixedly connected to a support leg (13) and an adjusting column (14). One end of the support leg (13) and the adjusting column (14) is rotatably connected to the bottom of the solar collector (12). The surface of the solar collector (12) is provided with a vacuum tube (4). The surface of the refrigerator body (11) is fixedly installed with a feeding mechanism (2).

2. A novel high efficiency solar refrigeration device as claimed in claim 1, wherein: The feeding mechanism (2) includes a working medium adding tank (21), the surface of which is provided with a first transparent plate (24), a metering pump (22) is fixedly installed at the bottom of the working medium adding tank (21), a feeding pipe (23) is fixedly connected to the surface of the metering pump (22), and a tank cover (25) is fastened to one end of the working medium adding tank (21).

3. A novel high efficiency solar refrigeration device as claimed in claim 2, wherein: A handle (26) is provided on the side of the can lid (25). A limiting tube (32) is fixedly sleeved on the surface of the can lid (25). One end of the limiting tube (32) is fixedly connected to an adding tube (31). One end of the adding tube (31) is fixedly connected to a nanoparticle adding box (3). A smart valve (33) is fixedly installed on the surface of the adding tube (31).

4. A novel high efficiency solar refrigeration device as claimed in claim 1, wherein: The vacuum tube (4) includes a tube body (41), the end face of the tube body (41) is provided with a positioning groove (43), the inner wall of the positioning groove (43) is provided with a connecting hole (44), and the surface of the tube body (41) is provided with a surface layer (42).

5. A novel high efficiency solar refrigeration device as claimed in claim 1, wherein: One end of the support leg (13) and the adjusting column (14) is fixedly connected to a bearing seat (15), and one end of the bearing seat (15) is rotatably connected to a connecting plate (16), and the surface of the connecting plate (16) has a connecting hole (17).

6. A novel high efficiency solar refrigeration device as claimed in claim 3, wherein: The surface of the nanoparticle adding box (3) is provided with a second transparent plate (35), and one end of the nanoparticle adding box (3) is threadedly connected to an end cap (34).

7. A novel high efficiency solar refrigeration device as claimed in claim 5, wherein: The connecting hole (17) is a strip-shaped hole, and a screw is movably connected to the inner wall of the connecting hole (17).

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