Energy-saving refrigeration system and room containing the same

Abstract

The present invention relates to the technical field of refrigeration devices, and specifically discloses an energy-saving refrigeration system and a room containing the same. The energy-saving refrigeration system comprises a box body, and the side walls of the box body are provided with a radiation refrigeration film, a thermal insulation layer, a circulating water layer and an air layer in sequence from the outside to the inside. The air layer is a cavity in the box body, and the air layer is also provided with a phase change module made of a phase change material, and the phase change module is in contact with the circulating water layer; the side walls of the box body are also provided with a semiconductor refrigeration sheet for adjusting the water temperature of the circulating water layer; the cavity is provided with an air inlet and an air outlet, and the air outlet is connected to a fresh air pump through an air duct. The present invention combines the radiation refrigeration film with water circulation, phase change materials, etc. for refrigeration, so that the indoor temperature of the room can also be reduced to a comfortable environment of about 26 degrees in an outdoor environment. During the use of this energy-saving refrigeration system, only one photovoltaic power plant is needed to meet the energy supply needs, with low energy consumption and low cost, and is particularly suitable for supporting use in sentry booths in southern regions.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration devices, and in particular relates to an energy-saving refrigeration system and a room comprising the same. Background Art

[0002] At present, the security booths and traffic booths in cities are generally designed independently, not connected to the surrounding buildings, and have no supporting power grid system. At the same time, these booths are generally small in area (usually 10-15m 2 ), nor is it completely airtight (it often needs to communicate with the outside world through windows). In the hot summer, the temperature inside the booth can reach 40-50 degrees Celsius. Even if the air conditioner is turned on 24 hours a day, it is difficult to achieve a comfortable effect inside the booth due to the fact that the booth is not airtight. In addition, the air conditioner consumes a lot of energy and the cost of configuring the power grid is high, which does not meet the design requirements of energy conservation and environmental protection. Summary of the invention

[0003] The purpose of the present invention is to provide an energy-saving refrigeration system and a room containing the same, so as to overcome the defects of existing refrigeration systems such as sentry booths, such as high energy consumption and unsatisfactory refrigeration effect.

[0004] To achieve the above-mentioned purpose, the present invention provides an energy-saving refrigeration system, including a box body, the side walls of which are provided with a radiation refrigeration film, a thermal insulation layer, a circulating water layer and an air layer in sequence from the outside to the inside, the air layer being a cavity inside the box body, the air layer being further provided with a phase change module made of phase change material, the phase change module being in contact with the circulating water layer; the side walls of the box body are further provided with a semiconductor refrigeration sheet, one end of the semiconductor refrigeration sheet extends into the circulating water layer, and the other end extends outside the box body; the cavity is provided with an air inlet and an air outlet connected to the outside of the box body, the air outlet is connected to a fresh air pump through an air duct; the low-temperature air in the cavity is discharged from the air duct driven by the fresh air pump.

[0005] After the outside gas enters the box through the air inlet, it becomes low-temperature gas under the action of the circulating water layer and the phase change material, and is transmitted to the designated space through the fresh air pump. Among them, the radiation refrigeration film is purchased from the market. By setting the radiation refrigeration film on the outside of this system and using it in conjunction with the insulation layer, the water can be cooled to about 8-10 degrees lower than the ambient temperature under direct sunlight during the day. The semiconductor refrigeration sheet can control the temperature of the circulating water to about 18 degrees Celsius of cold water, and combined with the phase change material to regulate the temperature. The phase change material is purchased from the market and can be fixed to the circulating water layer by pasting, bundling, etc. The phase change temperature of the phase change material can be set to about 23 degrees Celsius. The phase change material can adjust the state in time according to the temperature of the gas in the box and transmit the temperature to the circulating water layer, thereby adjusting the temperature of the gas in the box to about 23 degrees.

[0006] Preferably, the phase change module is wrapped with aluminum foil and fixed to the circulating water pipe by gluing. The aluminum foil can also be made of other heat-conducting materials.

[0007] Preferably, the air layer is also provided with an ice crystal box, which can be used to prolong the refrigeration effect so that the cavity and water temperature can be lower than 18 degrees.

[0008] Preferably, a protective layer is further provided on the inner side or the outer side of the thermal insulation layer, and the protective layer is made of a steel plate.

[0009] Preferably, the air inlet is smaller than the air outlet. Preferably, the air inlet can be made into a trumpet shape that is larger outside and smaller inside, so that the gas entering the box can be compressed and initially cooled, which is more conducive to energy saving.

[0010] Preferably, the circulating water layer is a spirally arranged circulating water pipe, which can further increase the contact area between the water pipe and the air and improve the cooling effect.

[0011] Preferably, a dehumidification net is provided at the air outlet of the fresh air pump to prevent the humidity of the output gas from being too high.

[0012] Preferably, a circulating water tank is provided below the box body, the circulating water layer is provided with a water inlet and a water outlet, and the circulating water tank is connected to the water inlet and the water outlet of the circulating water layer through a circulating water pipe and a water pump.

[0013] Preferably, it also includes a solar photovoltaic component, which is electrically connected to the semiconductor refrigeration sheet and the fresh air pump to provide electrical energy for the energy-saving refrigeration system.

[0014] Another technical solution of the present invention is a room, comprising a room body and the above energy-saving refrigeration system, wherein the air duct of the air outlet of the energy-saving refrigeration system is connected to the room body. That is, the room is cooled by the energy-saving refrigeration system. When used in summer, the temperature of the room can be reduced to about 26 degrees. The room can be a security booth or some small buildings.

[0015] Preferably, the energy-saving refrigeration system is arranged above or on one side of the room body; a fan is also arranged in the room body, and the fan blows toward the port of the air duct.

[0016] Compared with the existing technology, the present invention has the following beneficial effects:

[0017] 1. The present invention sequentially arranges a radiation cooling film, a heat preservation layer, a cooling water layer and an air layer with a phase change material, and combines the radiation cooling film with water circulation, phase change materials and the like for cooling. Among them, the radiation cooling film can cool water to about 8-10 degrees lower than the ambient temperature under direct sunlight during the day; the semiconductor cooling sheet maintains the circulation of the cooling water layer at about 18 degrees, and combined with the phase change material can quickly and effectively adjust the air temperature in the box. The multiple cooling combinations can reduce the indoor temperature of the room to a comfortable environment of about 26 degrees in the outdoor environment.

[0018] 2. The energy-consuming components of the present invention are mainly semiconductor refrigeration plates, water pumps and fresh air pumps. Compared with conventional air-conditioning refrigeration, they have fewer energy-consuming components and lower energy consumption. Photovoltaic energy can be used, and only one photovoltaic block is needed to meet the energy supply needs. It is more in line with the design requirements of energy saving and environmental protection. At the same time, it has low cost and is conducive to promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the structure of an energy-saving refrigeration system and a room under an embodiment;

[0020] Figure 2 is a schematic diagram of a refrigeration system under an embodiment.

[0021] Description of main reference numerals:

[0022] 1. Room body; 2. Energy-saving refrigeration system; 3. Air duct; 4. Fan; 5. Box; 6. Radiant refrigeration film; 7. Insulation layer; 8. Protective layer; 9. Circulating water layer; 10. Air layer; 11. Phase change module; 12. Air inlet; 13. Air outlet; 14. Fresh air pump; 15. Dehumidification net; 16. Semiconductor refrigeration sheet; 17. Circulating water tank; 18. Water inlet; 19. Water outlet; 20. Circulating water pipe; 21. Water pump; 22. Solar photovoltaic module. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0024] like Figure 1 As shown, a room includes a room body 1 and an energy-saving refrigeration system 2, wherein the energy-saving refrigeration system 2 is connected to the room body 1 through an air duct 3. A fan 4 is also provided in the room body 1, and the fan 4 blows toward the port of the air duct 3. That is, the cold air input by the energy-saving system is further dispersed by the fan 4 and evenly distributed, so that the temperature in the room is more uniform and comfortable.

[0025] like Figure 2As shown, the energy-saving refrigeration system 2 includes a box body 5, and the side walls of the box body 5 are provided with a radiation cooling film 6, a protective layer 8, a thermal insulation layer 7, a protective layer 8, a circulating water layer 9 and an air layer 10 from the outside to the inside in sequence; the air layer 10 is a cavity in the box body 5, and the air layer 10 is also provided with a phase change module 11 made of a phase change material. The thermal insulation layer 7 is made of thermal insulation cotton, and of course, other materials with thermal insulation effects can also be used. The protective layer 8 is made of a stainless steel plate. In other embodiments, the protective layer can also be provided with three layers, and the overall structure is more stable. The circulating water layer 9 is a spirally arranged circulating water pipe 20. The phase change material is purchased from the market, and a composite phase change material can be used. The phase change temperature of the phase change material in this embodiment is about 23 degrees. The phase change material can be made into a phase change module 11, and then the phase change module 11 is wrapped with aluminum foil and then pasted on the circulating water pipe 20. In other embodiments, other methods can also be used to fix the phase change material. The phase change material is in direct contact with the circulating water pipe 20, which is more conducive to air conditioning. In other embodiments, an ice crystal box is also provided in the air layer 10. The ice crystal box and the phase change material together regulate the air temperature in the box.

[0026] The side wall of the box body 5 is also provided with a semiconductor cooling sheet 16, the inner side of the semiconductor cooling sheet 16 is in contact with the circulating water layer 9, and the outer side of the semiconductor cooling sheet 16 is provided on the outer side of the box body 5. The semiconductor cooling sheet 16 can adjust the temperature of the circulating water to about 18 degrees. The semiconductor cooling sheet 16 can enhance the cooling of air and water circulation. The semiconductor cooling sheet 16 can be purchased on the market and then modified for application.

[0027] A circulating water tank 17 is provided below the box body 5, and the circulating water layer 9 is provided with a water inlet 18 and a water outlet 19. The circulating water tank 17 is connected to the water inlet 18 and the water outlet 19 of the circulating water layer 9 through a circulating water pipe 20 and a water pump 21. Ice cubes can be placed in the water tank. The water pipe of the circulating water layer 9 can be a copper pipe. The water pump 21 pumps water to the circulating water layer 9, which can replenish water for the box body 5 and also reduce the air temperature in the box body 5 through the circulating water.

[0028] The cavity is provided with an air inlet 12 and an air outlet 13 connected to the outside of the box 5, and the air inlet 12 is smaller than the air outlet 13. Preferably, the air inlet 12 can be made into a trumpet shape with a large outside and a small inside, so that the gas enters the box 5 so that it can be compressed and initially cooled, which is more conducive to energy saving. The air inlet 12 can also be provided in multiples. The air outlet 13 is connected to the fresh air pump 14 through the air duct 3, and the fresh air pump 14 is connected to the room body 1 through the air duct 3. The low-temperature air in the cavity is discharged from the air duct 3 under the drive of the fresh air pump 14 and transported to the room body 1. The air duct 3 connected to one end of the box 5 can extend to the middle and lower part of the box 5, which is more conducive to the acquisition of low-temperature gas. A dehumidification net 15 is provided at the air outlet of the fresh air pump 14 to prevent the output gas from being too humid. Of course, a dehumidification net 15 can also be provided on the air duct 3.

[0029] Furthermore, it also includes a solar photovoltaic assembly 22, which is electrically connected to the semiconductor cooling sheet 16, the fresh air pump 14 and the water pump 21. The photovoltaic assembly adopts a photovoltaic assembly on the market, that is, it uses solar energy to output electrical energy to provide kinetic energy for the operation of the energy-saving system. Preferably, the solar photovoltaic assembly 22 is arranged on the top of the box 5, which is more conducive to the collection of solar energy.

[0030] In summary, the present invention combines the radiation cooling film 6 water circulation, phase change materials and other combined cooling, so that the indoor temperature of the room can also be reduced to a comfortable environment of about 26 degrees in the outdoor environment. During the use of this energy-saving refrigeration system 2, only one photovoltaic can meet the energy supply needs, which is more in line with the design requirements of energy saving and environmental protection, and at the same time, the cost is low, and it is especially suitable for use in rooms in southern areas with small temperature differences.

[0031] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. An energy-saving refrigeration system, comprising a box, characterized in that: The side walls of the box are provided with a radiation cooling film, a thermal insulation layer, a circulating water layer and an air layer in sequence from the outside to the inside. The air layer is a cavity in the box. The air layer is also provided with a phase change module made of phase change material, and the phase change module is in contact with the circulating water layer; the air layer is also provided with an ice crystal box; the side walls of the box are also provided with a semiconductor refrigeration plate, one end of the semiconductor refrigeration plate extends into the circulating water layer, and the other end extends outside the box; the cavity is provided with an air inlet and an air outlet connected to the outside of the box, the air inlet is smaller than the air outlet, and the air inlet is made into a trumpet shape with a large outside and a small inside. When the gas enters the box, it is compressed and initially cooled. The air outlet is connected to the fresh air pump through an air duct, and the fresh air pump is then connected to the room body through the air duct. The low-temperature air in the cavity is discharged from the air duct driven by the fresh air pump.

2. The energy-saving refrigeration system according to claim 1, characterized in that: The phase change module is wrapped with aluminum foil and fixed to the circulating water pipe by gluing.

3. The energy-saving refrigeration system according to claim 1, characterized in that: A protective layer is also provided on the inner side or the outer side of the thermal insulation layer, and the protective layer is made of a steel plate.

4. The energy-saving refrigeration system according to claim 1, characterized in that: The air inlet is smaller than the air outlet.

5. The energy-saving refrigeration system according to claim 1, characterized in that: A dehumidification net is provided at the air outlet of the fresh air pump.

6. The energy-saving refrigeration system according to claim 1, characterized in that: A circulating water tank is provided below the box body, and the circulating water layer is provided with a water inlet and a water outlet. The circulating water tank is connected with the water inlet and the water outlet of the circulating water layer through a circulating water pipe and a water pump.

7. The energy-saving refrigeration system according to claim 1, characterized in that: It also includes a solar photovoltaic component, which is electrically connected to the semiconductor refrigeration sheet and the fresh air pump.

8. A room, comprising a room body, characterized in that: It also includes the energy-saving refrigeration system according to any one of claims 1 to 7, wherein the air duct of the air outlet of the energy-saving refrigeration system is connected to the room body.

9. The room according to claim 8, characterized in that The energy-saving refrigeration system is arranged above or on one side of the room body; a fan is also arranged in the room body, and the fan blows toward the port of the air duct.

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