Radiation refrigeration device

Abstract

The invention particularly relates to a radiation refrigeration device. The radiation refrigeration device comprises an ultraviolet processing unit, a conduction unit and an infrared reflection unit which are sequentially arranged. In the solar radiation process, the ultraviolet treatment unit is used for treating ultraviolet radiation so as to prevent the ultraviolet radiation from entering the conduction unit, and the infrared reflection unit is used for reflecting infrared radiation. Through the combination of the ultraviolet processing unit and the infrared reflection unit, the ultraviolet radiation is processed by the ultraviolet processing unit, so that the ultraviolet radiation is prevented from being absorbed by the infrared reflection unit through the conduction unit, the infrared reflection unit is only used for reflecting the infrared radiation, and the purpose of prolonging the service life of the infrared reflection unit is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building refrigeration, and in particular to a radiation refrigeration device. Background Art

[0002] Global climate change has had a significant impact on human life, particularly greenhouse gas emissions, which have led to an increasingly severe greenhouse effect. According to research by the International Energy Agency (IEA), the building sector consumes 20%-40% of global energy, with heating and cooling demand in buildings in winter and summer accounting for a significant portion. This demand, in turn, leads to electricity consumption, which in turn leads to the combustion and emission of large amounts of fossil fuels. With the intensification of the global greenhouse effect, sky radiative cooling, a new energy-saving cooling method, has seen significant development. It achieves cooling by transmitting long-wave radiation through a window in the atmosphere into outer space via thermal radiation.

[0003] Existing sky radiative cooling often uses metals like silver and aluminum to reflect infrared radiation from the sun. While these metals have good infrared reflection properties, they have extremely high absorption rates for ultraviolet radiation, which shortens the lifespan of radiative coolers and affects their efficiency in practical applications. Summary of the Invention

[0004] The present invention addresses the technical problems in the prior art of sky radiation cooling, such as ultraviolet absorption resulting in a lifespan that is difficult to achieve the expected, and low efficiency in actual application, and provides a radiation cooling device that has at least the advantages of high cleanliness, good cooling effect, and long lifespan.

[0005] The present invention provides a radiation cooling device, comprising: an ultraviolet treatment unit, a conduction unit and an infrared reflection unit arranged in sequence;

[0006] During the solar radiation process, the ultraviolet treatment unit is used to treat the ultraviolet radiation to prevent the ultraviolet radiation from entering the conduction unit, and the infrared reflection unit is used to reflect the infrared radiation.

[0007] Specifically, one of the main technical concepts of the present invention is that, by combining an ultraviolet treatment unit with an infrared reflection unit, the ultraviolet radiation is processed by the ultraviolet treatment unit, thereby preventing the ultraviolet radiation from passing through the conduction unit and being absorbed by the infrared reflection unit, and then the infrared reflection unit is only used for reflecting infrared radiation, thereby achieving the purpose of prolonging the service life of the infrared reflection unit.

[0008] Furthermore, the radiation cooling device includes a heat exchange unit arranged in contact with the infrared reflection unit.

[0009] Furthermore, the ultraviolet treatment unit includes optical glass, one side of the optical glass faces the transmission unit, and the other side is coated with an anti-ultraviolet film.

[0010] Specifically, another technical concept of the present invention is to use optical glass coated with an anti-UV film to isolate ultraviolet radiation while allowing infrared radiation to enter the conduction unit and then be reflected by the infrared reflection unit, thereby reducing the complexity of the device and the production cost.

[0011] Furthermore, the anti-ultraviolet film includes BUR-200 coating and BUZ-4G coating.

[0012] Optionally, the conduction unit includes air, sub-vacuum or vacuum.

[0013] Specifically, another technical concept of the present invention is to reduce the heat conduction between the ultraviolet treatment unit and the infrared treatment unit by setting air, sub-vacuum or vacuum, thereby enhancing the cooling effect of the radiation cooling device.

[0014] Optionally, the infrared reflection unit includes a reflector, and a side of the reflector facing the conductive unit is coated with a radiator.

[0015] Furthermore, the reflector includes silver-based, copper-based, and magnesium-based;

[0016] The radiator includes polyvinylidene fluoride.

[0017] Specifically, another technical concept of the present invention is to enhance the aggregation effect of infrared radiation by setting a radiator, thereby enhancing the infrared radiation reflection ability of the reflector, thereby ensuring the cooling effect of the radiation cooling device.

[0018] Optionally, the heat exchange unit includes a heat conduction channel, a fluid, and a driving body for driving the fluid to circulate in the heat conduction channel;

[0019] The heat conduction channel is arranged to fit the infrared reflection unit.

[0020] Specifically, another technical concept of the present invention is to utilize the setting of the heat exchange unit to enhance the heat exchange between the indoor and infrared reflection units, so that the indoor heat is reflected to the sky through infrared radiation, thereby improving the cooling effect of the radiation cooling device.

[0021] Furthermore, thermal silicone grease is provided between the heat conduction channel and the infrared reflection unit.

[0022] Optionally, the radiant cooling device includes a frame;

[0023] The frame is arranged around the ultraviolet processing unit, the conduction unit and the infrared reflection unit to support and fix the ultraviolet processing unit, the conduction unit and the infrared reflection unit.

[0024] In summary, the present invention provides a radiant cooling device having at least the following advantages: the present invention combines an ultraviolet treatment unit with an infrared reflection unit, so that the ultraviolet radiation is processed by the ultraviolet treatment unit, thereby preventing the ultraviolet radiation from passing through the conduction unit and being absorbed by the infrared reflection unit, and thus the infrared reflection unit is only used for reflecting infrared radiation, thereby achieving the purpose of prolonging the service life of the infrared reflection unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0026] Figure 1 A schematic structural diagram of a radiative cooling device provided by one embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of a radiative cooling device provided by another embodiment of the present invention;

[0028] 1. UV treatment unit; 2. Conduction unit; 3. Infrared reflection unit; 4. Sky; 5. Indoor; 11. Anti-UV film; 12. Optical glass; 31. Reflector; 32. Radiator; 61. Heat conduction channel; 62. Fluid; 63. Thermal grease. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 and 2 , the present invention is described in detail.

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The main technical concept of the present invention is to use the ultraviolet treatment unit 1 to isolate the ultraviolet reflection in the solar radiation, thereby preventing the ultraviolet radiation from affecting the infrared reflection unit 3, thereby increasing the service life of the infrared reflection unit 3.

[0032] Example 1

[0033] See Figure 1 The figure shows a schematic structural diagram of a radiation cooling device provided by one embodiment of the present invention. The radiation cooling device provided by the present invention comprises: an ultraviolet treatment unit 1, a conduction unit 2, and an infrared reflection unit 3 arranged in sequence; during solar radiation, the ultraviolet treatment unit 1 is used to process the ultraviolet radiation to prevent the ultraviolet radiation from entering the conduction unit 2, and the infrared reflection unit 3 is used to reflect the infrared radiation. The working principle of the present invention is that when the sun radiates during the day, the solar radiation in the sky 4 first passes through the ultraviolet treatment unit 1 to process the ultraviolet radiation in the solar radiation, so that the infrared radiation in the solar radiation enters the conduction unit 2 and is then reflected by the infrared reflection unit 3, thereby reducing the impact of the ultraviolet radiation on the infrared reflection unit 3, thereby increasing the service life of the infrared reflection unit 3 and the entire radiation cooling device. At the same time, the infrared reflection unit 3 can further reduce the temperature of the room 5 by absorbing the heat in the room 5 and reflecting it to the sky 4, thereby improving the cooling effect of the present invention.

[0034] Example 2

[0035] Based on Example 1, see Figure 2 Figure 2 shows a schematic diagram of the structure of a radiative cooling device according to another embodiment of the present invention. The radiative cooling device includes a heat exchange unit positioned in contact with an infrared reflective unit 3. A UV treatment unit 1 includes optical glass 12, one side of which faces the conductive unit 2 and the other side of which is coated with an anti-UV film 11. The anti-UV film 11 includes BUR-200 or BUZ-4G coatings.

[0036] Optionally, the conducting unit 2 includes air, sub-vacuum or vacuum.

[0037] Optionally, the infrared reflecting unit 3 includes a reflector 31 , and a radiator 32 is coated on a side of the reflector 31 facing the conducting unit 2 .

[0038] Furthermore, the reflector 31 includes a silver-based, copper-based, or magnesium-based material; and the radiator 32 includes polyvinylidene fluoride.

[0039] Optionally, the heat exchange unit includes a heat conduction channel 61 , a fluid 62 , and a driving body for driving the fluid 62 to circulate in the heat conduction channel 61 ; the heat conduction channel 61 is disposed in contact with the infrared reflection unit 3 .

[0040] Furthermore, thermal silicone grease 63 is provided between the heat conduction channel 61 and the infrared reflection unit 3 .

[0041] Optionally, the radiation cooling device includes a frame; the frame is arranged around the ultraviolet treatment unit 1, the conduction unit 2 and the infrared reflection unit 3 to support and fix the ultraviolet treatment unit 1, the conduction unit 2 and the infrared reflection unit 3.

[0042] The working principle of Example 2 is as follows: During solar radiation, ultraviolet radiation is isolated by the anti-ultraviolet film 11, allowing light waves other than ultraviolet radiation to enter the conduction unit 2 through the optical glass 12. Due to the air, sub-vacuum, or vacuum design of the conduction unit 2, the heat conduction capacity between the ultraviolet treatment unit 1 and the infrared reflection unit 3 is reduced, so that the infrared reflection unit 3 is not affected by the heat of the ultraviolet treatment unit 1, thereby improving the cooling effect of the radiation refrigeration device. After the infrared reflection unit 3 absorbs infrared radiation from the room 5 and the outside world through the reflector 31, it emits infrared radiation to the sky 4 through the radiator 32, thereby reducing the problem of indoor 5. At the same time, the heat in the room 5 is also transported to the reflector 31 through the heat conduction channel 61 and the fluid 62 in the channel. Then, under the action of the radiator 32, the reflector 31 emits heat to the sky 4 through infrared radiation, thereby cooling the room 5.

[0043] The present invention has been described in detail above. Specific examples have been used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the present invention and its core concepts. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A radiant cooling device, characterized in that: include: An ultraviolet treatment unit (1), a conduction unit (2) and an infrared reflection unit (3) are arranged in sequence; During solar radiation, the ultraviolet treatment unit (1) is used to treat ultraviolet radiation to prevent ultraviolet radiation from entering the conduction unit (2), and the infrared reflection unit (3) is used to reflect infrared radiation.

2. A radiant cooling device according to claim 1, characterized in that: The radiation refrigeration device comprises a heat exchange unit arranged in contact with the infrared reflection unit (3).

3. A radiant cooling device according to claim 1 or 2, characterized in that: The ultraviolet treatment unit (1) comprises an optical glass (12), one side of the optical glass (12) faces the transmission unit (2), and the other side is coated with an anti-ultraviolet film (11).

4. A radiant cooling device according to claim 3, characterized in that: The anti-ultraviolet film (11) includes BUR-200 coating and BUZ-4G coating.

5. The radiant cooling device according to claim 3, wherein: The conduction unit (2) includes air, sub-vacuum or vacuum.

6. The radiant cooling device according to claim 3, wherein: The infrared reflection unit (3) comprises a reflector (31), and the side of the reflector (31) facing the conductive unit (2) is coated with a radiator (32).

7. A radiant cooling device according to claim 6, characterized in that: The reflector (31) includes a silver base, a copper base, or a magnesium base; The radiator (32) comprises polyvinylidene fluoride.

8. The radiant cooling device according to claim 2, wherein: The heat exchange unit comprises a heat conduction channel (61), a fluid (62), and a driving body for driving the fluid (62) to circulate in the heat conduction channel (61); The heat conduction channel (61) is arranged to fit the infrared reflection unit (3).

9. The radiant cooling device according to claim 8, characterized in that: Thermal silicone grease (63) is provided between the heat-conducting channel (61) and the infrared reflection unit (3).

10. The radiant cooling device according to claim 1, wherein: The radiant cooling device includes a frame; The frame is arranged around the ultraviolet treatment unit (1), the conduction unit (2) and the infrared reflection unit (3) to support and fix the ultraviolet treatment unit (1), the conduction unit (2) and the infrared reflection unit (3).

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