Radiation air conditioning system

Abstract

The invention provides a radiation air-conditioning system, and relates to the technical field of electrical equipment, the radiation air-conditioning system comprises: a diversion unit provided with an air inlet and an air outlet; the air path enables air to enter from the air inlet and to be blown out from the air outlet; the radiation generating device is provided with a radiant tube enabling the target space to generate heat radiation, and the radiant tube is arranged in the flow guide unit in a winding mode; the air paths are arranged in the flow guide units in a winding mode, the air paths at least comprise a plurality of first air paths which are arranged in parallel, the first air paths are arranged at intervals, and the second air paths communicate the two first air paths closest to each other in an end-to-end mode; the radiant tubes at least comprise a plurality of first radiant tubes which are arranged in parallel, the plurality of first radiant tubes are arranged at intervals, and the second radiant tubes are used for communicating the two first radiant tubes which are closest to each other end to end; wherein the first air path and the first radiant tube are adjacently arranged, so that the outer wall of the first radiant tube forms a part of the inner wall of the first air path.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical equipment, and more particularly, to a radiant air-conditioning system. Background Art

[0002] The prior art discloses a radiant air conditioner that cools or heats indoor air by generating heat transfer through convection with air by providing multiple tubes through which heat media such as cold and hot water can pass. However, the air flows through the tubes at a high speed and has a short contact time with the tubes, resulting in low heat exchange efficiency. To solve the above problems, the present disclosure provides a radiant air-conditioning system that can improve the heat exchange efficiency. Summary of the Invention

[0003] To solve the above problems, the present disclosure provides a radiant air-conditioning system that can effectively improve the heat exchange efficiency.

[0004] The radiant air-conditioning system provided by the present disclosure includes, but is not limited to: a diversion unit provided with an air inlet and an air outlet; an air path that allows air to enter from the air inlet and blow out from the air outlet; a radiation generating device provided with radiation tubes that generate thermal radiation in a target space, and the radiation tubes are arranged in a meandering manner within the diversion unit; the air path is arranged in a meandering manner within the diversion unit, and the air path at least includes a plurality of first air paths arranged in parallel with each other, the plurality of first air paths are arranged at intervals, and a second air path that connects the heads and tails of the two closest first air paths; the radiation tubes at least include a plurality of first radiation tubes arranged in parallel with each other, the plurality of first radiation tubes are arranged at intervals, and a second radiation tube that connects the heads and tails of the two closest first radiation tubes; wherein, the first air path and the first radiation tube are arranged adjacent to each other, such that the outer wall of the first radiation tube forms a part of the inner wall of the first air path.

[0005] In some embodiments of the present disclosure, the second radiation tube is curved; one end of the second radiation tube is connected to the tail of the upstream first radiation tube, and the other end of the second radiation tube is connected to the head of the downstream first radiation tube.

[0006] In some embodiments of the present disclosure, a gap is provided between the outer wall of the second radiation tube and the side wall of the diversion unit, so that the air in the upstream first air path enters the downstream first air path through the gap.

[0007] In some embodiments of the present disclosure, the first radiation tube includes: side radiation tubes, and a part of the outer wall of the side radiation tubes is connected to two opposite side walls of the diversion unit.

[0008] In some embodiments of the present disclosure, the first radiation pipe further includes: a middle radiation pipe disposed between the two side radiation pipes, and the middle radiation pipe is connected to the side radiation pipes so that the outer walls of the side radiation pipes and the outer wall of the middle radiation pipe form a part of the inner wall of the first air passage.

[0009] In some embodiments of the present disclosure, the second radiation pipe includes a first radiation elbow that connects the nearest middle radiation pipes end to end and a second radiation elbow that connects the nearest side radiation pipes end to end. There is a gap between the outer walls of the first radiation elbow and the second radiation elbow, so that the air in the upstream first air passage enters the downstream first air passage through the gap.

[0010] In some embodiments of the present disclosure, the flow guiding unit includes: a baffle disposed in the flow guiding unit and close to the second radiation pipe. The baffle is connected to the outer wall of the first radiation pipe and the side wall of the flow guiding unit to form a part of the inner wall of the second air passage, and the gap forms a part of the second air passage.

[0011] In some embodiments of the present disclosure, the side wall of the flow guiding unit is integrally formed with the first radiation pipe.

[0012] In some embodiments of the present disclosure, in the direction perpendicular to the air flow, the cross-section of the radiation pipe is oval.

[0013] In some embodiments of the present disclosure, in the direction perpendicular to the air flow, the outer wall of the cross-section of the radiation pipe includes a convex portion.

[0014] In some embodiments of the present disclosure, it further includes a separating portion. The separating portion is connected to the side wall of the flow guiding unit and abuts against the first radiation pipe for supporting the first radiation pipe.

[0015] It can be seen from the above technical solutions that the radiation air-conditioning system of the present disclosure can increase the energy exchange area between the air in the air passage and the radiation pipe, and effectively improve the energy exchange efficiency of the radiation air-conditioning system. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Structural schematic diagram of a radiation air-conditioning system according to an embodiment of the present disclosure;

[0018] Figure 2A Schematic diagram of fluid flow of a radiant air-conditioning system according to an embodiment of the present disclosure;

[0019] Figure 2B is Figure 2A Partial enlarged view of area C in

[0020] Figure 2C is Figure 2A Partial enlarged view of area D in

[0021] Figure 3 Cross-sectional structure diagram of a radiant air-conditioning system according to an embodiment of the present disclosure;

[0022] Figure 4 is Figure 1 Partial enlarged schematic view of area A of the radiant air-conditioning system in

[0023] Figure 5 is Figure 1 Partial enlarged schematic view of area B of the radiant air-conditioning system in

[0024] Figure 6 Planar structure diagram of a radiant air-conditioning system according to an embodiment of the present disclosure.

[0025] Reference numerals:

[0026] Radiant air-conditioning system 100, diversion unit 10, body part 10A, sealing part 10B, air inlet 11, air outlet 12, air supply device 101, radiation generating device 102, temperature regulating device 103, air duct 20, first air duct part 21, second air duct part 22, radiation pipe 30, first radiation pipe 31, side radiation pipe 311, middle radiation pipe 312, second radiation pipe 32, first radiation elbow 321, second radiation elbow 322, baffle 40, gap M. Detailed implementation manners

[0027] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Additionally, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0028] The terms "first", "second", etc. used herein are for descriptive purposes only and cannot be construed as indicating or implying relative importance.

[0029] To clearly illustrate the technical content and effects of the present disclosure, the following will refer to specific embodiments and their accompanying drawings to provide a detailed description of the present disclosure. Additionally, the following embodiments are only one of the specific examples of the present disclosure and do not limit the technical scope of the present disclosure.

[0030] In the drawings, the second description of the same symbol for the same component and the description of components not directly related to the present disclosure will be omitted or simplified. In the following description, orientation terms such as up, down, left, right, above, and below are described based on the installation state of the radiant air-conditioning system in the present disclosure.

[0031] As shown in the figure, this embodiment relates to an air-conditioning system that can obtain the same air-conditioning environment for the entire target space by installing a device that can generate thermal radiation on the ceiling. The "target space" described in this embodiment refers to a place where occupants live, such as indoor environments like a living room or a bedroom.

[0032] First Embodiment

[0033] The radiant air-conditioning system 100 of this embodiment includes: a diversion unit 10, a blower device 101, an air duct 20, a radiation generating device 102, and a temperature regulating device 103.

[0034] Figure 1 It is a schematic structural diagram of the radiant air-conditioning system 100 according to an embodiment of the present disclosure.

[0035] The diversion unit 10 includes a main body part 10A and a sealing part 10B.

[0036] The main body part 10A is in the shape of a cuboid and has a funnel-shaped cross-section. One surface of the main body part 10A is provided with an air inlet 11 communicating with the blower device 101. After the blower device 101 sends air into the diversion unit 10 through the air inlet 11 provided on this side surface, the air is then blown out from the air outlet 12 provided at the bottom of the diversion unit 10.

[0037] The sealing part 10B is in the shape of a cuboid and includes an upper side surface, a lower side surface, a left side surface, a right side surface, two end side surfaces, and an opening. Among them, the opening side faces the main body part 10A; the left side surface and the right side surface extend to the outside of the main body part, and a part of them overlaps with the main body part; the upper side surface and the lower side surface are respectively located above and below the subsequent bending part. By connecting at least one of the upper side surface and the lower side surface to the subsequent first radiation pipe 31, the sealing part 10B is engaged with the main body part 10A. There are multiple sealing parts 10B, and the number is greater than or equal to the number of the subsequent second radiation pipes 32.

[0038] Figure 2A It is a schematic diagram of the fluid flow of the radiant air-conditioning system according to an embodiment of the present disclosure. Figure 2B For Figure 2APartial enlarged view of area C. Figure 2C For Figure 2A Partial enlarged view of area D in Figure 3 Cross-sectional structure schematic diagram of a radiant air-conditioning system according to an embodiment of the present disclosure.

[0039] The air guide unit 10 is provided with an air path 20 from the air inlet 11 to the air outlet 12, so that air enters from the air inlet 11 and blows out from the air outlet 12. The air exchanges energy with the radiation generating device 102 in the air path 20. In this embodiment, a plurality of air guide units 10 can be provided, for example, they can be arranged on the ceiling in different arrangements to facilitate energy exchange.

[0040] The air inlet 11 is provided on one side of the air guide unit 10 to enable air to enter the air guide unit 10. In this embodiment, the air inlet 11 is provided at a position on the side of the air guide unit 10 and close to the top. In some alternative embodiments, the air inlet can be provided on different sides of the air guide unit according to actual needs. The air blown out from the air supply device enters the air guide unit from the air inlet.

[0041] The air outlet 12 is arranged in a long and narrow strip shape at the bottom of the air guide unit 10. The bottom of the air guide unit 10 is composed of two bottom plates in an inverted triangle shape, and a distance is provided between the two bottom plates to form the air outlet 12.

[0042] Figure 4 For Figure 1 Partial enlarged schematic view of area A of the radiant air-conditioning system in Figure 5 For Figure 1 Partial enlarged schematic view of area B of the radiant air-conditioning system in

[0043] The air path 20 connects the air inlet 11 and the air outlet 12, so that air enters from the air inlet 11 and blows out from the air outlet 12. The air path 20 is meanderingly arranged in the air guide unit 10.

[0044] The air path 20 at least includes: a first air path part 21 and a second air path part 22.

[0045] There are more than two first air paths 21. The multiple first air paths 21 are arranged in parallel with each other, and the closest first air paths 21 are arranged at intervals. The second air path 22 connects the heads and tails of the closest and parallel first air paths 21, so that air can flow from the upstream first air path 21 through the second air path to the downstream first air path, so as to blow out the air entering the air path from the air inlet from the air outlet.

[0046] The parallel arrangement in this embodiment means that the distances between two parallel first air passages are equal. For example, the first air passage can be a straight air passage, or it can also be a curved air passage. When the first air passage is in a curved shape, the two first air passages with the closest distance being parallel to each other means that the distances between the first air passages are equal.

[0047] In this embodiment, there can be more than two first air passages 21, for example, 4, and the two first air passages 21 with the closest distance are connected end to end through the second air passage 22, thereby forming the air passage 20 in the diversion unit. As Figure 1 and Figure 3 shown, the first air passages 21 are arranged at intervals in parallel, and the second air passage 22 connects the tail of the upstream first air passage 21 to the head of the downstream first air passage 21. The numbers of the first air passages 21 and the second air passage 22 can be adjusted according to actual needs to meet the design requirements in different scenarios. As Figure 3 shown, from the top to the bottom of the diversion unit 10, multiple first air passages 21 are arranged at intervals in parallel in sequence.

[0048] The air supply device 101 is arranged at one end of the diversion unit 10 and is connected to the diversion unit 10. For example, the air supply device 101 is connected to the air inlet 11. The air supply device 101 is provided with a fan blade and a motor. When the fan blade starts, air enters the diversion unit from the air inlet.

[0049] The radiation generating device 102 is arranged in the diversion unit 10 to cause thermal radiation in the target space and is composed of multiple radiation tubes 30. The radiation generating device 102 causes the air temperature (heating or cooling) in the target space to change or conducts thermal radiation heat exchange between the walls constituting the target space or the objects existing in the target space (such as furniture or human bodies).

[0050] The radiation tube 30 is a hollow component for generating thermal radiation, and its internal structure can allow a fluid (such as warm water or cold water, and in other embodiments, it can be other liquids for generating thermal radiation) to pass through. The material of the radiation tube can be made of some materials with a relatively high emissivity such as plastic. It can also be made of materials such as metal that are easy for energy exchange. In this embodiment, it is made of a metal material and is a flat tube with an elliptical cross-section. In other embodiments, the cross-section can also be a circular tube or an elongated flat circular shape. The radiation tubes 30 are arranged in a meandering manner from the top to the bottom of the diversion unit, forming a multi-layer meandering pipe system. In this article, "meandering" means having a bent part at one end and coiling together in a snake-like or spiral-like manner. There are multiple radiation tubes and they are arranged side by side in the diversion unit.

[0051] The radiant tube 30 includes at least a plurality of first radiant tubes 31 arranged in parallel with each other, and a second radiant tube 32 that connects the heads and tails of the nearest first radiant tubes 31. The plurality of first radiant tubes 31 are arranged at intervals, that is, there is a certain interval between the nearest first radiant tubes 31. The first air passage 21 and the first radiant tube 31 are arranged adjacent to each other, so that the outer wall of the first radiant tube 31 forms a part of the inner wall of the first air passage 21.

[0052] Similarly, the parallel arrangement here means that the distance between two parallel first radiant tubes is equal. For example, the first radiant tube can refer to a straight pipe, and the first radiant tube can also be a curved air passage. When the first radiant tube is curved, the parallelism between the two nearest first radiant tubes means that the interval distance between the first radiant tubes is equal. In addition, those skilled in the art should be well aware that in the actual production process, due to process or profile deformation, it may not be possible to achieve complete parallelism.

[0053] For example, a first air passage 21 is provided between the nearest first radiant tubes 31, and a first radiant tube 31 is provided between the nearest first air passages 21. The first radiant tube 31 and the first air passage 21 are adjacent.

[0054] The second radiant tube 32 is used to connect the heads and tails of the nearest and parallel first radiant tubes 31. For example, the second radiant tube 32 is curved. One end of the second radiant tube 32 is connected to the tail of the upstream first radiant tube 31, and the other end of the second radiant tube 32 is connected to the head of the downstream first radiant tube 31, so that the first radiant tube 31 and the second radiant tube 32 form the shape of the radiant tube 30 that winds in the flow guiding unit. Moreover, the outer wall of the first radiant tube 31 forms a part of the inner wall of the first air passage 21, and the outer wall of the second radiant tube 32 forms a part of the inner wall of the second air passage 22, so as to more effectively enable the air in the air passage to exchange energy with the radiant tube. According to the embodiments of the present disclosure, the air passage 20 and the radiant tube 30 that wind in the flow guiding unit 10 can increase the contact area between the air and the radiant tube, and effectively improve the efficiency of energy exchange.

[0055] The first radiant tube 31 can be an independent pipe or section of pipe connected to another pipe or section of pipe by welding to each other, or by one-piece molding, or by using other components (such as flanges, screws).

[0056] When the first radiation pipe 31 is arranged as a single pipe, the outer wall of the first radiation pipe 31 forms a part of the inner wall of the first air passage. For example, the outer wall of the first radiation pipe 31 and the side walls of the flow guiding unit 10 together form the inner wall of the first air passage 21. When the first radiation pipe 31 is arranged as a single pipe, the head and tail of the first radiation pipes 31 that are closest to each other and parallel are connected by a second radiation pipe 32, and a gap M is provided between the outer wall of the second radiation pipe 32 and the side wall of the flow guiding unit 10, so that the air in the upstream first air passage 21 enters the downstream first air passage 21 through the gap.

[0057] As Figure 3 shown, in this embodiment, the first radiation pipe 31 includes: a side radiation pipe 311 and a middle radiation pipe 312.

[0058] A part of the outer wall of the side radiation pipe 311 is connected to two opposite side walls of the flow guiding unit 10, and one side thereof is arranged close to the side wall of the flow guiding unit 10. For example, the flow guiding unit 10 includes two opposite side walls, and the side radiation pipes 311 connected to the side walls are arranged on each side wall. The middle radiation pipe 312 is arranged between the two side radiation pipes 311, and the middle radiation pipe 312 is connected to the side radiation pipes 311, that is, the middle radiation pipe 312 and the side radiation pipes 311 on both sides are arranged side by side, so that the outer walls of the side radiation pipes 311 and the outer wall of the middle radiation pipe 312 form a part of the inner wall of the first air passage 21.

[0059] Exemplarily, the side wall of the flow guiding unit 10 and the first radiation pipe 31 are integrally formed.

[0060] In some alternative embodiments, the side wall of the flow guiding unit and the first radiation pipe may be independently manufactured by other processes and then connected.

[0061] Figure 6 It is a schematic plan view of a radiation air-conditioning system according to an embodiment of the present disclosure.

[0062] As Figure 4 and Figure 5 shown, the second radiation pipe 32 includes a first radiation elbow 321 that connects the heads and tails of the closest middle radiation pipes 312 and a second radiation elbow 322 that connects the heads and tails of the closest side radiation pipes 311. A gap M is provided between the outer walls of the first radiation elbow 321 and the second radiation elbow 322, so that the air in the upstream first air passage 21 enters the downstream first air passage 21 through the gap M.

[0063] For example, when the first radiation pipe 31 includes two side radiation pipes 311 and one middle radiation pipe 312, the first radiation elbow 321 is used to connect the head and tail of the two closest middle radiation pipes 312 arranged in parallel, and two second radiation elbows 322 are used to connect the two closest side radiation pipes 311 arranged in parallel. The outer walls of the middle radiation pipe 312 and the side radiation pipes 311 are connected in the extending direction of the radiation pipe to form a part of the inner wall of the first air duct 21, so that the direction of the first air duct 21 is the same as the extending direction of the first radiation pipe 31.

[0064] By providing a gap between the outer wall of the first radiation elbow and the outer wall of the second radiation elbow, so that the air in the upstream first air duct enters the downstream first air duct through the gap, the air can flow in the connected first air duct, and the exchanged heat can be carried away by the air.

[0065] In some embodiments of the present disclosure, as Figures 4 to 6 shown, the guiding unit 10 further includes a baffle 40.

[0066] In some embodiments, the radiation air-conditioning system further includes a separating part, and the separating part can be other components other than the radiation pipe, such as a partition board made of the same material as the guiding unit, etc. The separating part is connected to the side wall of the guiding unit and abuts against the first radiation pipe for supporting the first radiation pipe. For example, the separating part is arranged on the lower side in the vertical direction of the first radiation pipe and abuts against the outer surface of the first radiation pipe to support the first radiation pipe. The baffle is arranged in the guiding unit and close to the second radiation pipe, that is, arranged on the upper side or the lower side of the curved second radiation pipe. The baffle in this embodiment is the lower side or the upper side of the sealing part. The baffle is connected to the outer wall of the first radiation pipe and the baffle is connected to the side wall of the guiding unit. The baffle is used to make the air enter the downstream first air duct from the air in the upstream first air duct, effectively increasing the contact area between the air and the radiation pipe and improving the efficiency of energy exchange. By providing the baffle, it can be avoided that the air flow passes through multiple first air ducts, so that the air has a longer flow time in the air duct and the heat exchange efficiency is improved.

[0067] The radiation air-conditioning system 100 further includes a temperature regulating device 103. The temperature regulating device 103 is used to regulate the temperature of the fluid, and is a device for raising or lowering the fluid temperature. In this embodiment, the fluid can be, for example, water, or other liquids or gases that can be used for energy exchange. One end of the temperature regulating device 103 is connected to the liquid inlet pipe, and the other end is connected to the liquid discharge pipe. The temperature regulating device 103 can be provided with a refrigeration cycle system, or temperature regulating components such as heaters, as well as components such as water pumps and circulation pumps that can drive the fluid to flow and circulate.

[0068] The liquid inlet pipe 1031 is a pipe for sending the liquid that has been temperature-regulated to the radiation pipe 30. One end is connected to the temperature regulation device 103, and the other end is connected to the radiation pipe inside the diversion unit.

[0069] The liquid discharge pipe 1032 is a pipe for returning the liquid after passing through the radiation pipe 30 to the temperature regulation device. One end is connected to the radiation pipe, and the other end is connected to the temperature regulation device 103.

[0070] The liquid inlet pipe, the radiation pipe, and the liquid discharge pipe are connected in sequence. The liquid after passing through the radiation pipe returns to the temperature regulation device through the liquid discharge pipe. After the temperature of the liquid is regulated by the temperature regulation device, it enters the radiation pipe again from the liquid inlet pipe. The liquid inlet pipe and the radiation pipe can be connected together by connection methods such as welding, or they can be integrally formed pipes; similarly, the liquid discharge pipe and the radiation pipe can also be connected together by connection methods such as welding, or they can be integrally formed pipes.

[0071] The radiation pipe 30 is arranged in a meandering manner inside the diversion unit 10, and the air duct 20 is arranged in a meandering manner inside the diversion unit 10. Specifically, the closest first air ducts 21 are arranged at intervals, the closest first radiation pipes 31 are arranged at intervals, and the first air ducts 21 and the first radiation pipes 31 are arranged adjacent to each other, thereby effectively increasing the contact area between the radiation pipe and the air in the air duct. That is, the air not only contacts the surface of the radiation pipe for a short time, but the air entering the diversion unit will contact each layer of the radiation pipe multiple times inside the diversion unit, effectively increasing the contact area of the air. On the other hand, since the radiation pipe is arranged in a meandering manner inside the diversion unit and the air duct is arranged in a meandering manner inside the diversion unit, the distance that the air flows in the air duct is increased, and at the same time, the contact distance between the air duct and the radiation pipe is increased. The time for the air in the air duct to perform heat exchange becomes longer, thereby improving the heat exchange efficiency.

[0072] As Figure 4 shown, when the air supply device 101 sends air into the air inlet 11, the air first enters the first air duct 21 on the upper side of the diversion unit 10. In the first air duct 21 on the upper side, the air contacts the outer wall of the first radiation pipe 31 that serves as the inner wall of the first air duct 21, and energy exchange can be carried out. Among them, on both sides in the extending direction of the first air duct 21 are the two side walls of the diversion unit 10, and the top of the first air duct 21 on the upper side is the top wall of the diversion unit. Thus, the upper side of the outer wall of the first radiation pipe 31 and the two side walls of the diversion unit 10 and the top wall of the diversion unit 10 together form the inner wall of the first air duct 21 on the upper side to guide the air in the first air duct 21 on the upper side. As Figure 5As shown, after the air passes through the first air passage 21 on the upper side, it reaches the second air passage 22, and is guided by the second air passage 22 to enter the head of the first air passage 21 in the downstream from the tail of the first air passage 21 in the upstream. The first air passage 21 in the downstream can be, for example, the middle position of the diversion unit 10. The second air passage 22 is jointly formed by the side wall of the diversion unit 10, the outer wall of the second radiation tube 32, and the baffle 40. And there is a gap M between the outer wall of the second radiation tube 32 and the side wall of the diversion unit 10. This gap M forms a part of the second air passage 22. When the air reaches the first air passage 21 in the downstream from the first air passage 21 in the upstream, it passes through this gap M. The air reaches the first air passage 21 in the middle of the diversion unit 10 after passing through the second air passage 22 from the first air passage 21 on the upper side of the diversion unit 10, and energy exchange takes place. The inner wall of the first air passage 21 in the middle of the diversion unit 10 is respectively composed of the side walls of the diversion unit 10 on both sides, the top of the outer wall of the first radiation tube 31 closest to each other, and the bottom of the outer wall of the first radiation tube 31. Thus, the contact area between the air in the first air passage 21 and the outer wall of the first radiation tube 31 can be effectively increased, and the heat exchange efficiency is greatly increased. In addition, for two first air passages adjacent to the same radiation tube, one first air passage is located upstream and the other first air passage is located downstream. The two first air passages can exchange heat with the same first radiation tube, which can greatly improve the heat exchange efficiency.

[0073] Finally, the first air passage 21 at the bottom is connected to the air outlet 12, and the air that has undergone energy exchange is blown out from the air outlet 12 into the target space, achieving a high energy exchange efficiency. The winding arrangement of the air passage 20 and the radiation tube 30 in the diversion unit 10 effectively increases the contact area between the air and the outer wall of the radiation tube, and through the setting of the second air passage, the air can also be effectively mixed. The energy exchange efficiency is high, and the temperature of the blown air is uniform.

[0074] Furthermore, compared with general fresh air heat exchange, the air entering the diversion unit will not affect the wind speed due to pressure loss. Instead, due to the weakening of the wind speed, the blown air can be more natural and closer to the feeling of no wind. That is, it will not blow directly towards the user quickly, thus improving the user experience.

[0075] In this embodiment, the first air passage 21 and the first radiation tube 31 extend along the length direction of the diversion unit in the diversion unit, thereby increasing the contact area between the air in the air passage and the outer wall of the radiation tube.

[0076] In some alternative embodiments, the extending directions of the first air duct and the first radiation pipe may be the vertical direction or extend along the arcs of concentric circles. The present disclosure does not specifically limit the extending directions of the first air duct and the first radiation pipe. It should be noted that when the radiation pipe and the air duct are serpentinely arranged in the flow guiding unit and the first radiation pipe and the first air duct are arranged adjacent to each other, the contact area between the air in the air duct and the outer wall of the radiation pipe can be effectively increased, thereby improving the heat exchange efficiency.

[0077] In one embodiment, in the direction perpendicular to the air flow, the cross-section of the radiation pipe is elliptical. For example, when the radiation pipe is arranged as one, the cross-section of the radiation pipe is elliptical.

[0078] In another embodiment, in the direction perpendicular to the air flow, the outer wall of the cross-section of the radiation pipe includes a convex portion. For example, the extending direction of the convex portion is consistent with the extending direction of the radiation pipe, which can effectively increase the energy exchange area between the radiation pipe and the air in the air duct and improve the energy exchange efficiency.

[0079] Second Embodiment

[0080] In the air change device of this embodiment, the following changes are made on the basis of the radiation air-conditioning system of the first embodiment, and the remaining structures are the same as those of the first embodiment, and the effects are also the same.

[0081] The sealing portion and the body portion of the flow guiding unit are integrally formed, that is, the flow guiding unit is in the shape of a cuboid and has 6 faces.

[0082] A baffle extends from the end of the flow guiding unit, that is, from the inner side walls of the two side faces with the smallest cross-sectional area among the 6 faces, towards the middle of the flow guiding unit. At this time, the baffle is connected to the outer wall of the first radiation pipe. In other embodiments, the baffle may be integrally formed with the outer wall of the first radiation pipe.

[0083] So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present disclosure.

[0084] It should be noted that in the accompanying drawings or the text of the specification, the implementation manners that are not depicted or described are all forms known to those of ordinary skill in the art in the technical field to which they belong, and no detailed description is given. In addition, the above definitions of each component are not limited to the various specific structures and shapes mentioned in the embodiments, and those of ordinary skill in the art can make simple changes or replacements to them.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A radiant air conditioning system, comprising: a diversion unit provided with an air inlet and an air outlet; an air duct for allowing air to enter from the air inlet and blow out from the air outlet; a radiation generating device provided with radiation pipes for generating thermal radiation in a target space, and the radiation pipes are arranged in a meandering manner within the diversion unit; wherein, the air duct is arranged in a meandering manner within the diversion unit, and the air duct at least includes a plurality of first air ducts arranged in parallel with each other, the plurality of first air ducts are arranged at intervals, and a second air duct for connecting the heads and tails of the two closest first air ducts; the radiation pipes at least include a plurality of first radiation pipes arranged in parallel with each other, the plurality of first radiation pipes are arranged at intervals, and a second radiation pipe for connecting the heads and tails of the two closest first radiation pipes; wherein, the first air duct and the first radiation pipe are arranged adjacent to each other, such that the outer wall of the first radiation pipe forms a part of the inner wall of the first air duct.

2. The radiant air conditioning system according to claim 1, wherein, the second radiation pipe is in a bent shape; one end of the second radiation pipe is connected to the tail of the upstream first radiation pipe, and the other end of the second radiation pipe is connected to the head of the downstream first radiation pipe.

3. The radiant air conditioning system according to claim 2, wherein, a gap is provided between the outer wall of the second radiation pipe and the side wall of the diversion unit, so that the air in the upstream first air duct enters the downstream first air duct through the gap.

4. The radiant air conditioning system according to claim 2, wherein, the first radiation pipe includes: side radiation pipes, and a part of the outer wall of the side radiation pipes is connected to two opposite side walls of the diversion unit.

5. The radiant air conditioning system according to claim 4, wherein, the first radiation pipe further includes: a middle radiation pipe arranged between the two side radiation pipes, the middle radiation pipe is connected to the side radiation pipes, so that the outer walls of the side radiation pipes and the outer wall of the middle radiation pipe form a part of the inner wall of the first air duct.

6. The radiant air conditioning system according to claim 5, wherein, the second radiation pipe includes a first radiation elbow for connecting the heads and tails of the closest middle radiation pipes and a second radiation elbow for connecting the heads and tails of the closest side radiation pipes, a gap is provided between the outer wall of the first radiation elbow and the outer wall of the second radiation elbow, so that the air in the upstream first air duct enters the downstream first air duct through the gap.

7. The radiant air conditioning system according to claim 3 or 6, wherein, the diversion unit includes: a baffle arranged within the diversion unit and close to the second radiation pipe, the baffle is connected to the outer wall of the first radiation pipe and the baffle is connected to the side wall of the diversion unit to form a part of the inner wall of the second air duct, the gap forms a part of the second air duct.

8. The radiant air conditioning system according to any one of claims 1 to 6, wherein, the side wall of the diversion unit is integrally formed with the first radiation pipe.

9. The radiant air conditioning system according to any one of claims 1 to 6, wherein, In a direction perpendicular to the air flow, the cross-section of the radiation tube is elliptical.

10. The radiant air-conditioning system according to any one of claims 1 to 6, characterized in that in a direction perpendicular to the air flow, the outer wall of the cross-section of the radiation tube includes a convex portion.

11. The radiant air-conditioning system according to any one of claims 1 to 6, characterized in that it further includes a partition portion, the partition portion is connected to the side wall of the flow guiding unit and abuts against the first radiation tube for supporting the first radiation tube.

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