Refrigerant direct expansion type cold and hot reinforced heat transfer radiant panel

Abstract

The invention relates to a refrigerant direct expansion type cold and hot reinforced heat transfer radiant panel. The device comprises a thermal insulation layer, the reflecting layer is arranged on the surface of the heat preservation layer; the heat conducting layer is arranged on the surface of the reflecting layer; the heat exchange assembly comprises a heat exchange pipe, heat exchange fins, a gas collecting pipe and a liquid collecting pipe which are arranged in the heat conduction layer, the heat exchange fins wrap the outer wall of the heat exchange pipe, and the gas collecting pipe and the liquid collecting pipe are connected with the two ends of the heat exchange pipe respectively. An air conditioner heat exchange function is integrated in the wallboard, so that the wallboard has a temperature control function, and the functional defects of a traditional wallboard are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning application and interior decoration, in particular to a refrigerant direct expansion type cold and hot type enhanced heat transfer radiation plate. Background Art

[0002] Currently, the most effective way to solve indoor heating and cooling loads is to install air conditioning. Most air conditioning equipment used in ordinary residences is wall-mounted on the wall or suspended in the ceiling. Restricted by the on-site environment, the installation requires a high level of professionalism and there is a risk of excessive noise, which affects the overall aesthetic of the interior decoration.

[0003] With the improvement of living standards, people pay more and more attention to the function and beauty of living environment and interior decoration. The use of wall panels is becoming more and more popular. Wall panels can not only maintain walls, but also achieve beautification effects. However, the current wall panels have a single function and are not given more functions. Summary of the invention

[0004] To this end, the present invention provides a refrigerant direct expansion hot and cold type enhanced heat transfer radiation plate, which can be installed in the walls, ceilings, suspended ceilings, beams and other locations in the building. It can not only meet the indoor cooling and heating needs, but also has no "blowing feeling", high human comfort, simple on-site construction, and good aesthetics after decoration.

[0005] In order to solve the above technical problems, the present invention provides a refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate, comprising: Insulation layer; A reflective layer, arranged on the surface of the thermal insulation layer; A heat-conducting layer, disposed on the surface of the reflecting layer; The heat exchange assembly comprises a heat exchange tube, heat exchange fins, an air collecting pipe and a liquid collecting pipe arranged inside the heat conduction layer. The heat exchange fins are wrapped around the outer wall of the heat exchange tube, and the air collecting pipe and the liquid collecting pipe are respectively connected to the two ends of the heat exchange tube.

[0006] In one embodiment of the present invention, the thermal insulation layer comprises a polystyrene thermal insulation board.

[0007] In one embodiment of the present invention, the reflective layer includes an aluminum foil reflective film, and the aluminum foil reflective film is connected to the thermal insulation layer by bonding.

[0008] In one embodiment of the present invention, the heat-conducting layer includes heat-conducting paste or heat-conducting silica gel.

[0009] In one embodiment of the present invention, a lower gypsum board is provided on a side of the thermal insulation layer facing away from the reflective layer, and an upper gypsum board is further provided on the surface of the heat-conducting layer.

[0010] In one embodiment of the present invention, it also includes a fixed frame, which includes an outer frame, an inner frame and an upper sealing plate, the inner frame is provided with a first accommodating groove for accommodating the lower gypsum board, the thermal insulation layer, the reflective layer, the heat conductive layer and the upper gypsum board, the outer frame is provided with a second accommodating groove for accommodating the inner frame, the upper sealing plate is respectively connected to the outer frame and the inner frame, the outer frame and / or the upper sealing plate are provided with foaming process holes, and the gap formed between the upper sealing plate, the outer frame and the inner frame is filled with foaming thermal insulation material.

[0011] In one embodiment of the present invention, the inner frame includes a first vertical side and a first inner fold edge and an outer fold edge respectively extending vertically inward and outward along the two ends of the first vertical side, the outer frame includes a second vertical side and a second inner fold edge and a third inner fold edge respectively extending vertically inward along the two ends of the second vertical side, the second inner fold edge is abutted against the outer wall of the first inner fold edge and is connected by screws, the upper sealing plate is respectively connected to the third inner fold edge and the outer fold edge by screws, and the gap is formed between the first vertical side, the second vertical side, the upper sealing plate and the second inner fold edge.

[0012] In one embodiment of the present invention, the heat exchange tubes are copper tubes and are distributed in a serpentine shape. A plurality of the heat exchange tubes are arranged longitudinally along the surface of the reflective layer. The gas collecting tube and the liquid collecting tube are arranged on both sides of each of the heat exchange tubes in the transverse direction. The liquid collecting tube includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting tube includes a first end distributed along its length direction and a second end located in the axial direction. The two ports of each of the heat exchange tubes are respectively connected to the first end of the gas collecting tube and the first end of the liquid collecting tube.

[0013] In one embodiment of the present invention, the second end of the liquid collecting pipe is connected to a throttling element, and the throttling element is also connected to a one-way valve; the throttling element includes an electronic expansion valve.

[0014] In one embodiment of the present invention, the diameter of the heat exchange tube is 7.0 mm-9.52 mm, the height of the heat exchange fin is 10 mm-13 mm, and the distance between the heat exchange fins is 5 mm-20 mm.

[0015] The above technical solution of the present invention has the following advantages compared with the prior art: The refrigerant direct expansion type cold and hot type enhanced heat transfer radiation plate described in the present invention not only meets the cooling and heating functions, but can also be used in various locations such as walls, ceilings, and ceilings, solving the limitation that traditional air-conditioning equipment can only be installed on the wall or ceiling, and improving the utilization rate and flexibility of indoor space. The heat exchange method of the radiation plate achieves uniform heat and cold distribution through efficient heat transfer of the heat conductive layer and the heat exchange component, without the "blowing feeling", greatly improving the human comfort, especially suitable for areas where people spend a long time indoors.

[0016] The present invention can enhance heat transfer and reduce the heat transfer temperature difference between the refrigerant in the heat exchange tube and the surface of the radiation plate by arranging heat exchange fins and heat conductive layers, thereby improving the cooling and heating energy efficiency ratio of the direct expansion heat pump host and improving the uniformity of the surface temperature of the radiation plate, so that the refrigerant flow and evaporation temperature can be accurately controlled during summer cooling, and condensation on the outer surface of the radiation plate can be avoided to the greatest extent while ensuring the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0018] Figure 1 It is a cross-sectional structural diagram of one side of the radiation plate of the present invention.

[0019] Figure 2 yes Figure 1 A partial enlarged schematic diagram of .

[0020] Figure 3 It is a structural schematic diagram of the radiation panel of the present invention.

[0021] Figure 4 It is a cross-sectional structural diagram of the other side of the radiation plate of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the fixing frame of the present invention.

[0023] Description of the Figures in the Specification: 1. Throttling element; 2. One-way valve; 3. Liquid collecting pipe; 4. Gas collecting pipe; 5. Heat exchange tube; 6. Heat exchange fin; 7. Lower gypsum board; 8. Insulation layer; 9. Reflection layer; 10. Heat conduction layer; 11. Upper gypsum board; 12. Fixing frame; 13. Outer frame; 131. Second vertical edge; 132. Second inner folding edge; 133. Third inner folding edge; 14. Inner frame; 141. First vertical edge; 142. First inner folding edge; 143. Outer folding edge; 15. Upper sealing plate; 16. Screws; 17. Process holes; 18. Foam insulation material. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0026] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0028] Reference Figure 1 As shown, a refrigerant direct expansion type cold and hot type enhanced heat transfer radiation plate of the present invention comprises: Insulation layer 8; A reflective layer 9 is arranged on the surface of the thermal insulation layer 8; A heat-conducting layer 10 is disposed on the surface of the reflecting layer 9; The heat exchange assembly includes a heat exchange tube 5, a heat exchange fin 6, an air collecting pipe 4 and a liquid collecting pipe 3 arranged inside the heat conductive layer 10, the heat exchange fin 6 is wrapped around the outer wall of the heat exchange tube 5, and the air collecting pipe 4 and the liquid collecting pipe 3 are respectively connected to the two ends of the heat exchange tube 5.

[0029] Existing wall panels are mostly used for decoration and protection, and have a single function. The present invention integrates the air conditioning heat exchange function in the wall panel, so that the wall panel also has a temperature control function, which supplements the deficiencies of the traditional wall panel function. The radiation panel integrates the requirements of decoration and air conditioning functions, can be used as a wall panel, and can also be used as a ceiling gusset plate, and the system is simple and maintenance-free.

[0030] In one embodiment, the thermal insulation layer 8 comprises a polystyrene thermal insulation board.

[0031] In one embodiment, the reflective layer 9 includes an aluminum foil reflective film, and the aluminum foil reflective film is connected to the thermal insulation layer 8 by bonding.

[0032] In one embodiment, the heat-conducting layer 10 includes heat-conducting paste or heat-conducting silicone.

[0033] In one embodiment, a lower gypsum board 7 is provided on a side of the thermal insulation layer 8 facing away from the reflective layer 9 , and an upper gypsum board 11 is further provided on the surface of the heat conducting layer 10 .

[0034] In one embodiment, referring to Figure 5 As shown, it also includes a fixed frame 12, the fixed frame 12 includes an outer frame 13, an inner frame 14 and an upper sealing plate 15, the inner frame 14 is provided with a first accommodating groove for accommodating the lower gypsum board 7, the thermal insulation layer 8, the reflective layer 9, the heat-conducting layer 10 and the upper gypsum board 11, the outer frame 13 is provided with a second accommodating groove for accommodating the inner frame 14, the upper sealing plate 15 is respectively connected to the outer frame 13 and the inner frame 14, the outer frame 13 and / or the upper sealing plate 15 are provided with foaming process holes 17, and the gap formed between the upper sealing plate 15, the outer frame 13 and the inner frame 14 is filled with foaming insulation material 18.

[0035] In one embodiment, referring to Figure 2 As shown, the inner frame 14 includes a first vertical side 141 and a first inner folding edge 142 and an outer folding edge 143 respectively extending vertically inward and outward along the two ends of the first vertical side 141, the outer frame 13 includes a second vertical side 131 and a second inner folding edge 132 and a third inner folding edge 133 respectively extending vertically inward along the two ends of the second vertical side 131, the second inner folding edge 132 abuts against the outer wall of the first inner folding edge 142 and is connected by screws 16, the upper sealing plate 15 is respectively connected to the third inner folding edge 133 and the outer folding edge 143 by screws 16, and the gap is formed between the first vertical side 141, the second vertical side 131, the upper sealing plate 15 and the second inner folding edge 132.

[0036] In one embodiment, the heat exchange tube 5 is a copper tube and is distributed in a serpentine shape. A plurality of the heat exchange tubes 5 are arranged longitudinally along the surface of the reflective layer 9. The gas collecting pipe 4 and the liquid collecting pipe 3 are arranged on both sides of each of the heat exchange tubes 5 in the lateral direction. The liquid collecting pipe 3 includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting pipe 4 includes a first end distributed along its length direction and a second end located in the axial direction. The two ports of each of the heat exchange tubes 5 are respectively connected to the first end of the gas collecting pipe 4 and the first end of the liquid collecting pipe 3.

[0037] It is understandable that the main function of the gas collecting pipe 4 and the liquid collecting pipe 5 is to divide the heat exchange pipes in the radiation plate into several loops to make the refrigerant flow uniform, thereby avoiding the problem of large flow resistance caused by a single loop, and the problem that the temperature along the pipe direction is getting higher or lower, which makes it difficult to even out the temperature on the surface of the radiation plate.

[0038] In one embodiment, referring to Figure 3 , Figure 4 As shown, the second end of the collecting pipe 3 is connected to a throttling element 1, and the throttling element 1 is also connected to a one-way valve 2; the throttling element 1 includes an electronic expansion valve.

[0039] In one embodiment, the diameter of the heat exchange tube 5 is 7.0 mm-9.52 mm, the height of the heat exchange fin 6 is 10 mm-13 mm, and the spacing between the heat exchange fins 6 is 5 mm-20 mm.

[0040] The working process of the radiation board of the present invention is as follows: During summer cooling, the refrigerant becomes a low-temperature refrigerant liquid after passing through the electronic expansion valve and flows to the liquid collecting pipe 3. It is divided into several branches by the liquid collecting pipe 3 and enters the heat exchange tube 5 of the radiation plate. After evaporation and heat absorption and radiation cooling, it becomes a low-temperature refrigerant gas and flows to the gas collecting pipe 4. After entering the gas-liquid separation from the gas collecting pipe 4, it is sucked into the compressor.

[0041] During winter heating, the high-temperature refrigerant gas enters the heat exchange tube 5 of the radiation plate from several branch pipes of the gas collecting pipe 4, and releases heat for radiant heating. After becoming liquid, it enters the electronic expansion valve 3 through the liquid collecting pipe to reduce the pressure into a low-temperature refrigerant liquid. After heat exchange with the outdoor unit, it becomes a low-temperature gas and enters the compressor.

[0042] The manufacturing process of the radiation board of the present invention is as follows: S1. Place the inner frame 14 on the workbench, and put the lower gypsum board 7 into the inner frame 14 to ensure that the board is flat.

[0043] S2. Use a plurality of fixing screws 16 to fix the outer frame 13, the inner frame 14 and the lower gypsum board 7 into one body, and stick sealing tape along the edges to ensure the structural stability and sealing of the outer frame 13 and the inner frame 14.

[0044] S3. Place the polystyrene insulation board flatly on the assembled structure as an insulation layer to reduce heat loss and improve heat transfer efficiency.

[0045] S4, evenly paste the aluminum foil reflective film on the surface of the thermal insulation layer 8, and ensure that there are no bubbles or wrinkles on the film surface. The reflective layer 9 reduces the heat transfer to the back side by reflecting the heat radiation.

[0046] S5. Place the pre-welded heat exchange component on the surface of the reflective layer 9, and evenly place a proper amount of thermal conductive paste on the aluminum foil reflective film as a thermal conductive layer 10, ensuring that the component is in close contact with the thermal conductive paste to achieve a good heat transfer effect.

[0047] S6. Place the upper gypsum board 11 flatly on the heat exchange assembly; S7. Fix the upper sealing plate 15 to the outer frame 13 and the inner frame 14 in sequence with screws 16 to ensure that the overall structure is stable and not loose.

[0048] S8. Inject a foaming agent from the foaming process hole 17, and wait for the foaming agent to expand and solidify in the gap between the upper sealing plate 15, the outer frame 13 and the inner frame 14 to form a thermal insulation layer 8, thereby further improving the thermal insulation performance of the radiation panel.

[0049] Through the above-mentioned manufacturing process, the radiation panel can ensure the efficient flow and heat transfer of the refrigerant, improve the overall heat exchange efficiency, and realize complex temperature control functions with a simple structure, thereby providing energy-saving, low-noise and beautiful effects for the indoor environment.

[0050] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A refrigerant direct expansion hot and cold type enhanced heat transfer radiation plate, characterized in that: include: Insulation layer (8); A reflective layer (9) disposed on the surface of the thermal insulation layer (8); A heat-conducting layer (10) is arranged on the surface of the reflecting layer (9); A heat exchange component comprises a heat exchange tube (5), a heat exchange fin (6), an air collecting pipe (4) and a liquid collecting pipe (3) arranged inside the heat conductive layer (10), wherein the heat exchange fin (6) is wrapped around the outer wall of the heat exchange tube (5), and the air collecting pipe (4) and the liquid collecting pipe (3) are respectively connected to both ends of the heat exchange tube (5).

2. A refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The thermal insulation layer (8) comprises a polystyrene thermal insulation board.

3. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The reflective layer (9) comprises an aluminium foil reflective film, and the aluminium foil reflective film is connected to the thermal insulation layer (8) by bonding.

4. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The heat-conducting layer (10) comprises heat-conducting paste or heat-conducting silica gel.

5. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: A lower gypsum board (7) is provided on the side of the thermal insulation layer (8) facing away from the reflective layer (9), and an upper gypsum board (11) is also provided on the surface of the heat-conducting layer (10).

6. A refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 5, characterized in that: The invention also comprises a fixing frame (12), the fixing frame (12) comprising an outer frame (13), an inner frame (14) and an upper sealing plate (15), the inner frame (14) being provided with a first receiving groove for receiving the lower gypsum board (7), the thermal insulation layer (8), the reflective layer (9), the heat conducting layer (10) and the upper gypsum board (11), the outer frame (13) being provided with a second receiving groove for receiving the inner frame (14), the upper sealing plate (15) being connected to the outer frame (13) and the inner frame (14) respectively, the outer frame (13) and / or the upper sealing plate (15) being provided with foaming process holes (17), and the gap formed between the upper sealing plate (15), the outer frame (13) and the inner frame (14) being filled with foaming thermal insulation material (18).

7. A refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 6, characterized in that: The inner frame (14) comprises a first vertical side (141) and a first inner folding edge (142) and an outer folding edge (143) respectively extending vertically inward and outward along two ends of the first vertical side (141); the outer frame (13) comprises a second vertical side (131) and a second inner folding edge (132) and a third inner folding edge (133) respectively extending vertically inward along two ends of the second vertical side (131); the second inner folding edge (132) abuts against an outer wall of the first inner folding edge (142) and is connected via screws (16); the upper sealing plate (15) is respectively connected to the third inner folding edge (133) and the outer folding edge (143) via screws (16); the gap is formed between the first vertical side (141), the second vertical side (131), the upper sealing plate (15) and the second inner folding edge (132).

8. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The heat exchange tubes (5) are copper tubes and are distributed in a serpentine shape. A plurality of the heat exchange tubes (5) are arranged longitudinally along the surface of the reflective layer (9). The gas collecting tube (4) and the liquid collecting tube (3) are arranged on both sides of each heat exchange tube (5) in the transverse direction. The liquid collecting tube (3) includes a first end distributed along its length direction and a second end located in the axial direction. The gas collecting tube (4) includes a first end distributed along its length direction and a second end located in the axial direction. The two ends of each heat exchange tube (5) are respectively connected to the first end of the gas collecting tube (4) and the first end of the liquid collecting tube (3).

9. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The second end of the liquid collecting pipe (3) is connected to a throttling element (1), and the throttling element (1) is also connected to a one-way valve (2); the throttling element (1) comprises an electronic expansion valve.

10. The refrigerant direct expansion cold and hot type enhanced heat transfer radiation plate according to claim 1, characterized in that: The diameter of the heat exchange tube (5) is 7.0 mm to 9.52 mm, the height of the heat exchange fins (6) is 10 mm to 13 mm, and the spacing between the heat exchange fins (6) is 5 mm to 20 mm.

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