Adsorption bed and heat transfer member therefor

Abstract

A heat transfer member for an adsorption bed, comprising: a heat conduction tube, a tube cavity being used for allowing a heat exchange fluid to flow therein; an outer cylinder sleeved on the outer side of the heat conduction tube to form, together with the heat conduction tube, a storage cavity therebetween for placing an adsorbent, the outer cylinder being provided with a ventilation hole penetrating from the inside to the outside; and a heat conduction plate, the thickness direction of the heat conduction plate being arranged to intersect with the extension direction of the heat conduction tube, one side edge of the heat conduction plate being connected to and in heat conduction contact with the outer wall of the heat conduction tube, and another side edge being connected to the inner wall of the outer cylinder. Therefore, the heat conduction plate can not only provide support, but also extend a lateral transfer path to improve heat transfer efficiency, thereby effectively solving the problem of a poor heat transfer effect in current heat transfer members. Further disclosed is an adsorption bed comprising the heat transfer member.

Description

Adsorption bed and its heat transfer components

[0001] This application claims priority to Chinese Patent Application No. 202411975126.0, filed on December 30, 2024, entitled "Adsorption Bed and Heat Transfer Component Thereof", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of adsorption technology, and more specifically, to a heat transfer component for an adsorption bed, and to an adsorption bed including the aforementioned heat transfer component. Background Technology

[0003] At low temperatures, the adsorbent in an adsorption bed can adsorb or / and bind to a gaseous working fluid. This can be a physical change, such as the gaseous working fluid turning into a liquid, which is then adsorbed onto the adsorbent; or a chemical change, where the working fluid chemically binds to the adsorbent, resulting in the adsorption of the working fluid. At high temperatures, the adsorbent can absorb heat to generate a gaseous working fluid, which is then released. This process is the reverse of the above; it can be a liquid-to-gas transition or a chemical change releasing the gaseous working fluid.

[0004] During the desorption and / or adsorption stages, a heat exchange fluid is required to exchange heat with the adsorbent in the adsorption chamber. Therefore, an adsorption chamber is formed within the adsorption bed, with heat transfer channels extending through it. The fluid in these channels can transfer heat with the adsorbent in the adsorption chamber. Simultaneously, a mass transfer cavity is also provided within the adsorption chamber to allow the gaseous adsorbent to flow through it. During the adsorption stage, the gaseous adsorbent formed in the evaporator is transported to the mass transfer cavity, where it contacts and is received by the adsorbent. During the desorption stage, the adsorbent desorbs the gaseous adsorbent, which enters the mass transfer cavity and then exits the condenser from the outlet of the mass transfer cavity.

[0005] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: the adsorbent needs to exchange heat with the heat exchange channel, while the adsorption working fluid needs to be combined with the adsorbent. How to efficiently transfer mass and heat is an urgent problem that adsorption beds need to face. Summary of the Invention

[0006] In view of this, the first objective of the present invention is to provide a heat transfer component for an adsorption bed that can effectively solve the problem of poor heat transfer performance of current heat transfer components. The second objective of the present invention is to provide an adsorption bed including the above-mentioned heat transfer component.

[0007] To achieve the first objective mentioned above, the present invention provides the following technical solution:

[0008] A heat transfer component for an adsorption bed, comprising:

[0009] Heat pipes, with a cavity for flowing heat exchange fluid;

[0010] An outer cylinder is fitted over the outside of the heat-conducting pipe to form a storage cavity for placing the adsorbent between the outer cylinder and the heat-conducting pipe. The outer cylinder is provided with a vent hole that runs through the inside and outside.

[0011] A heat-conducting plate is provided, with its thickness direction intersecting the extension direction of the heat-conducting pipe. One edge of the heat-conducting plate is connected to the outer wall of the heat-conducting pipe and makes thermal contact, while the other edge is connected to the inner wall of the outer cylinder.

[0012] In use, the aforementioned heat transfer components are placed within the chamber of the adsorption bed. If necessary, sealing components can be used to create a heat exchange fluid chamber inside the heat-conducting pipe and a storage chamber outside the heat-conducting pipe, containing adsorbent particles. During the adsorption phase, a low-temperature fluid flows through the heat-conducting pipe. The heat from the adsorbent is transferred to the heat-conducting plate and then to the heat-conducting pipe, or directly to the heat-conducting pipe and then to the internal low-temperature fluid. At this time, the gaseous adsorbent enters the storage chamber through the vent and is adsorbed by the adsorbent. During the desorption phase, a high-temperature fluid flows through the heat-conducting pipe. The heat from the high-temperature fluid is transferred to the adsorbent through the pipe wall and the heat-conducting plate, causing the adsorbent to desorb the gaseous adsorbent, which is then discharged to the outside through the vent. In the heat transfer components of the adsorption bed, a heat-conducting plate is placed between the outer cylinder and the heat-conducting pipe, providing support between them. Meanwhile, being a heat-conducting plate, it allows for lateral heat transfer, increasing the lateral heat conduction depth and effectively expanding the width of the storage cavity to improve heat transfer efficiency. Therefore, the aforementioned heat-conducting plate not only provides support but also extends the lateral heat transfer path, enhancing heat transfer efficiency. It also facilitates the lateral transfer of the adsorbed working fluid, improving mass transfer performance. In summary, the heat transfer components of the aforementioned adsorption bed effectively solve the problem of poor heat transfer performance in current heat transfer components.

[0013] In some technical solutions, at least one side wall of the outer cylinder is a concave wall that is recessed in the circumferential direction, and a plurality of ventilation holes are provided on the concave wall.

[0014] In some technical solutions, the thickness direction of the heat-conducting plate is perpendicular to the extension direction of the heat-conducting pipe.

[0015] In some technical solutions, the outer cylinder is a thermally conductive structure, and the heat-conducting plate is in thermal contact with the outer cylinder.

[0016] In some technical solutions, the heat pipe, the heat-conducting plate, and the outer cylinder are constructed as an integral structural component; the integral structural component is a stretched component formed by extending along the extension direction of the heat pipe; the cross-sections of the heat pipe and the outer cylinder are both annular; and the cross-section of the heat-conducting plate is elongated.

[0017] In some technical solutions, multiple concave walls are sequentially connected to form a ring structure, and the heat-conducting plate is connected to the junction of adjacent concave walls.

[0018] In some technical solutions, the heat-conducting plate has outwardly extending fins on at least one side, with one end of the fins connected to the center of the heat-conducting plate in the radial direction and the other end extending radially outward.

[0019] In some technical solutions, the concave wall is provided with multiple rows of vent holes along the circumferential direction, and each row of vent holes is arranged with multiple vent holes in sequence along the extension direction of the heat pipe; along the circumferential direction, the density of the vent hole group located in the middle position is greater than the density of the vent hole group located on both sides.

[0020] In some technical solutions, the corner points of the outer contour of the outer cylinder cross section can be connected sequentially to form a regular polygon structure, and adjacent corner points are connected by an inwardly concave arc structure to form the concave wall.

[0021] In some technical solutions, the corner points of the outer contour of the outer cylinder cross section are connected sequentially to form a regular hexagonal structure.

[0022] To achieve the second objective mentioned above, the present invention also provides an adsorption bed comprising any of the aforementioned heat transfer components, including a chamber, wherein the heat transfer component is disposed within the chamber, and adsorbent particles are placed within the heat transfer component. Since the aforementioned heat transfer components possess the aforementioned technical effects, the adsorption bed having such heat transfer components should also possess corresponding technical effects.

[0023] In some technical solutions, the outer wall of the outer cylinder of the heat transfer component is coated with an adsorbent layer and forms an opening that avoids the vent hole of the outer cylinder. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the cross-sectional structure of the heat transfer component provided in an embodiment of the present invention;

[0026] Figure 2 is a cross-sectional schematic diagram of the heat transfer component provided in an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the operation of the heat transfer component provided in an embodiment of the present invention;

[0028] Figure 4 is a schematic cross-sectional view of the heat transfer component filled with adsorbent particles provided in an embodiment of the present invention.

[0029] Figure 5 is a three-dimensional structural diagram of the seven heat transfer components arranged side by side according to an embodiment of the present invention.

[0030] Figure 6 is a schematic diagram of the end structure of the seven heat transfer components arranged side by side according to an embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of the dimensions of the heat transfer component provided in an embodiment of the present invention;

[0032] Figure 8 shows the mH'-f(Q) relationship curve provided in the embodiment of the present invention.

[0033] The following are labeled in the attached diagram: 1. Heat pipe; 2. Storage chamber; 3. Heat exchange fluid; 4. Gaseous adsorption working medium; 5. Mass transfer channel; 11. Pipe wall; 12. Heat-conducting plate; 13. Fins; 21. Outer cylinder; 22. Vent hole; 23. Adsorbent particles. Detailed Implementation

[0034] This invention discloses a heat transfer component for an adsorption bed, which can effectively solve the problem of poor heat transfer performance of current heat transfer components.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please refer to Figures 1-8. Figure 1 is a cross-sectional structural schematic diagram of the heat transfer component provided in the embodiment of the present invention; Figure 2 is a cross-sectional schematic diagram of the heat transfer component provided in the embodiment of the present invention; Figure 3 is a working schematic diagram of the heat transfer component provided in the embodiment of the present invention; Figure 4 is a cross-sectional structural schematic diagram of the heat transfer component after being filled with adsorbent particles 23 provided in the embodiment of the present invention; Figure 5 is a three-dimensional structural schematic diagram of seven heat transfer components arranged side by side provided in the embodiment of the present invention; Figure 6 is a schematic diagram of the end structure of seven heat transfer components arranged side by side provided in the embodiment of the present invention; Figure 7 is a dimensional schematic diagram of the heat transfer component provided in the embodiment of the present invention; Figure 8 is a mH'-f(Q) relationship curve provided in the embodiment of the present invention.

[0037] In some embodiments, a heat transfer component for an adsorption bed is provided as a separator to separate the heat exchange fluid cavity and the mass transfer cavity. Of course, in specific applications, the heat transfer component itself can form the separated heat exchange fluid cavity and mass transfer cavity, or it can be combined with other structures or multiple heat transfer components to form the separated heat exchange fluid cavity and mass transfer cavity. Specifically, the appropriate installation method can be selected according to the structure of the heat transfer component and the heat and mass transfer requirements.

[0038] In some embodiments, a heat transfer component for an adsorption bed is provided, specifically the heat transfer component including a heat-conducting pipe 1, an outer cylinder 21, and a heat-conducting plate 12.

[0039] The heat pipe 1 is used to flow the heat exchange fluid 3. The heat pipe 1 refers to a heat-conducting structure capable of conducting heat through its wall 11. The heat exchange fluid 3 can be: a cooling fluid during the adsorption stage, where heat from the external adsorbent can be transferred to the cooling fluid through the pipe wall 11 to cool the adsorbent and allow it to adsorb the working fluid; or a heating fluid during the desorption stage, where heat from the internal heating fluid can be transferred to the external adsorbent through the pipe wall 11 to desorb the working fluid. The heat pipe 1 can be a circular or elliptical tube. While a flat tube increases the contact area between the pipe wall 11 and the heat exchange fluid 3, resulting in better heat exchange, it is less conducive to uniform distribution.

[0040] The outer cylinder 21 is fitted around the heat-conducting pipe 1, forming a storage cavity 2 for placing the adsorbent between the outer cylinder 21 and the heat-conducting pipe 1. The cross-section of the storage cavity 2 can be annular or C-shaped. Preferably, the cross-section of the storage cavity 2 is annular, and the width is equal in all directions.

[0041] The outer cylinder 21 is provided with a through-hole 22, allowing external adsorbent to enter the storage chamber 2 through the vent 22, and similarly, the gaseous adsorbent 4 in the storage chamber 2 can enter the outer cylinder 21 through the vent 22. In use, the storage chamber 2 is filled with adsorbent, particularly granular adsorbent particles 23, with cavities formed between the particles to facilitate the transfer of the gaseous adsorbent. Simultaneously, the adsorbent particles 23 are constrained within the storage chamber 2 by the outer cylinder 21 and the heat-conducting pipe 1; therefore, the vent 22 should not be too large to prevent adjacent adsorbent particles 23 from escaping through it. Taking adsorption as an example, the external gaseous adsorbent 4 enters the storage chamber 2 through the vent 22 and flows between the adsorbent particles 23, allowing each adsorbent particle 23 to gradually adsorb the gaseous adsorbent 4. The vent 22 can be an array of holes, with a square or circular cross-section.

[0042] The thickness direction of the heat-conducting plate 12 intersects the extension direction of the heat-conducting pipe 1, and the intersection angle is generally not less than 60 degrees. Specifically, it is set vertically to separate them in the storage cavity 2, so as to ensure that the heat-conducting plate 12 and the adsorbent have sufficient contact area, so that heat can be better transferred from the heat-conducting pipe 1 to the heat-conducting plate 12, and then transferred from the heat-conducting plate 12 to the adsorbent.

[0043] Furthermore, one side edge of the heat-conducting plate 12 is connected to the outer wall of the heat-conducting pipe 1 and makes thermal contact. The connection achieves fixation, and through thermal contact, the heat of the heat-conducting pipe 1 can be transferred to the heat-conducting plate 12, and the heat of the heat-conducting plate 12 can also be transferred to the heat-conducting pipe 1, and then to the internal heat exchange fluid 3.

[0044] The other side edge of the heat-conducting plate 12 is connected to the inner wall of the outer cylinder 21 to fix the outer cylinder 21. The connection between the heat-conducting plate 12 and the outer cylinder 21 forms a support between the outer cylinder 21 and the heat-conducting pipe 1, which helps to maintain the stability of the storage cavity 2 and ensures the looseness of the adsorbent particles 23 therein. The connection method can be welding or integral molding.

[0045] The outer cylinder 21 can be formed by combining perforated plate structures or by using a mesh structure, so that the mesh forms ventilation holes 22. The outer cylinder 21 can also be formed by spirally winding wire and being supported by heat-conducting plate 12 to form a cylindrical structure.

[0046] In use, the aforementioned heat transfer components are placed in the chamber of the adsorption bed. If necessary, sealing components can be used to form a heat exchange fluid chamber inside the heat-conducting pipe 1, and a storage chamber 2 outside the heat-conducting pipe 1, with adsorbent particles placed in the storage chamber 2. During the adsorption stage, a low-temperature fluid flows through the heat-conducting pipe 1. The heat of the adsorbent is transferred to the heat-conducting plate 12 and then to the heat-conducting pipe 1, or directly to the heat-conducting pipe 1 and then to the internal low-temperature fluid. At this time, the gaseous adsorbent 4 enters the storage chamber 2 through the vent 22 to be adsorbed by the adsorbent. During the desorption stage, a high-temperature fluid flows through the heat-conducting pipe 1. The heat of the high-temperature fluid is transferred to the adsorbent through the pipe wall 11 and the heat-conducting plate 12, causing the adsorbent to desorb the gaseous adsorbent 4. The gaseous adsorbent 4 is discharged to the outside through the vent 22. In the heat transfer components of the aforementioned adsorption bed, a heat-conducting plate 12 is disposed between the outer cylinder 21 and the heat-conducting pipe 1, providing support between them. Simultaneously, as it is a heat-conducting plate 12, heat can be transferred laterally, increasing the lateral heat conduction depth and effectively expanding the width of the storage cavity 2 to improve heat transfer efficiency. Therefore, the aforementioned heat-conducting plate 12 not only provides support but also extends the lateral transfer path, improving heat transfer efficiency. It can also laterally transfer the adsorbed working fluid, providing mass transfer. In summary, the aforementioned heat transfer components of the adsorption bed effectively solve the problem of poor heat transfer performance in current heat transfer components.

[0047] In some embodiments, at least one side wall of the outer cylinder 21 may be a concave wall that is recessed in the circumferential direction, and a plurality of vent holes 22 may be provided on the concave wall.

[0048] When the outer cylinder 21 forms an inner concave wall, when multiple heat transfer components abut against each other in sequence, the inner concave wall can be arranged opposite to the inner concave wall of another heat transfer component, or abut against the planar wall of another heat transfer component, so as to facilitate the formation of a cavity, which can serve as a mass transfer channel 5 for the flow of gaseous adsorption working medium 4.

[0049] Alternatively, at least one side wall of the outer cylinder 21 can be an outwardly convex wall circumferentially convex, and multiple vent holes 22 can be provided on the outwardly convex wall. For example, the heat pipe 1 can be annular or polygonal, but each side can be outwardly convex in an arc shape.

[0050] Compared to the convex wall, the concave wall can form a mass transfer channel 5 with a larger cross-sectional area. Conversely, the convex wall, due to its upward bulge, can form a larger storage cavity 2, thus having better storage capacity.

[0051] In some embodiments, the concave wall can be concave in an arc shape or in a square groove.

[0052] In some embodiments, the outer cylinder 21 can be further made into a heat-conducting structure, and the heat-conducting plate 12 can be in heat-conducting contact with the outer cylinder 21, so that heat transfer can also be formed between the heat-conducting plate 12 and the outer cylinder 21. Then the outer cylinder 21 can directly transfer heat with the adsorbent to achieve a better heat transfer effect.

[0053] In some embodiments, the heat pipe 1, the heat plate 12, and the outer cylinder 21 can be constructed as an integral structural component. For example, when forming an integral structural component, the heat pipe 1, the heat plate 12, and the outer cylinder 21 are formed.

[0054] The integral structural component is a stretched component formed by extending along the extension direction of the heat pipe 1. A stretched component refers to a structure constructed by moving the cross-section of its base material along a certain direction, and the area traversed by its solid portion. It can be formed using an extrusion process, and the specific forming method can refer to the forming method of aluminum profiles. The stretched component can be the aforementioned base material, in which case all cross-sections of the stretched component have equal size and shape; alternatively, it can be the aforementioned base material with a small number of openings or other forms of removal, such as the vent 22 opened on the outer cylinder 21, which can be openings in the base material of the stretched component. Specifically, the integral structural component can be made so that at least a section of the structure along the extension direction has a cross-sectional shape and size of equal size.

[0055] Specifically, the heat-conducting pipe 1 and the outer cylinder 21 can both have annular cross-sections; the heat-conducting plate 12 has an elongated cross-section. After forming the matrix of the stretched part by extrusion or other methods, corresponding vent holes 22 are drilled on the outer cylinder 21.

[0056] In some embodiments, multiple concave walls are typically connected sequentially to uniformly form multiple mass transfer channels 5, thereby improving mass transfer uniformity. Openings are generally formed in the extending direction to introduce or export the adsorbed working fluid.

[0057] Furthermore, multiple concave walls can be connected sequentially to form a ring structure, facilitating the uniform formation of multiple mass transfer channels 5 in the circumferential direction. If each concave wall is connected end-to-end sequentially, and the straight-line distance between the two ends is equal, the cross-section of the entire outer cylinder 21 is approximately a regular polygon.

[0058] In some embodiments, the heat-conducting plate 12 can be connected to the junction of adjacent concave walls to avoid forming too many corners, thus facilitating the uniform distribution of adsorbent particles 23. Simultaneously, the corner support allows for better force transmission.

[0059] In some embodiments, the heat-conducting plate 12 may be connected to the circumferential center of the concave wall to form more corner positions, so as to form better mass transfer channels 5 and better heat transfer contact.

[0060] In some embodiments, the heat-conducting plate 12 may have outwardly extending fins 13 on at least one side to extend into the spaces between the adsorbent particles 23, thereby better transferring heat from the heat-conducting plate 12 to the adsorbent particles 23. By adding fins 13, the heat transfer effect between the heat-conducting plate 12 and the adsorbent particles 23 is improved, and the heat transfer path between the adsorbent particles 23 is reduced.

[0061] Furthermore, multiple fins 13 can be arranged on both sides to form a tree-like structure. These fins extend outwards, primarily distributed in the external space. This is because adjacent heat-conducting plates 12 are arranged at an angle, and the distance between adjacent heat-conducting plates 12 increases radially. At this point, the outward extension of the fins 13 allows them to better extend into a larger space, thus better preventing excessively long heat transfer paths between adsorbents and ensuring efficient heat transfer.

[0062] Furthermore, generally speaking, fins 13 can be provided on both sides of the heat-conducting plate 12. The fins 13 are integrally formed and connected with the heat-conducting plate 12, and one end of the fins 13 is connected to the radial center of the heat-conducting plate 12, while the other end of the fins 13 extends radially outward.

[0063] Furthermore, in order to better adsorb and transfer the working fluid, it is preferable to provide multiple rows of vent holes along the circumferential direction of the concave wall. Each row of vent holes can be arranged with multiple vent holes 22 in sequence along the extension direction of the heat pipe 1. Through the above arrangement, the number of vent holes 22 can be increased, and the diameter of the vent holes 22 can be avoided from being too large. By providing more ventilation air, the ventilation effect can be better guaranteed.

[0064] Furthermore, considering that mass transfer requirements are not high at the corner positions, especially since multiple vents 22 can be arranged sequentially along the extension direction of the heat pipe 1, the density of the vent group located in the middle position can be greater than the density of the vent groups located on both sides in the circumferential direction. As shown in the attached figure, the density of the vent group in the middle is three times that of the vents 22 on both sides, and three rows of vent groups are provided. Of course, more rows of vent groups can also be provided, such as five groups of vent groups, six groups of vent groups, etc.

[0065] Furthermore, considering that fins 13 are provided on both sides of the heat-conducting plate 12, in order to form a better distribution, it is preferable that the angle between the heat-conducting plate 12 and the fins 13 on it is smaller than the angle between adjacent heat-conducting plates 12.

[0066] Furthermore, the angle between the heat-conducting plate 12 and the fins 13 on it can be made equal to the angle between adjacent heat-conducting plates 12, so that the fins 13 between each other can be better extended and more evenly distributed.

[0067] In some embodiments, the corner points of the outer cylinder 21's cross-section can be sequentially connected to form a regular polygon structure, with adjacent corner points connected by concave curved structures to form concave walls. This results in uniformly formed mass transfer channels 5 around the perimeter and more uniform stress distribution. In other words, the outer cylinder 21's cross-section is generally a regular polygon structure, but the edges forming the polygon structure are no longer straight lines but may be curved, thus it can be considered an approximate regular polygon structure. Specific regular polygon structures can be equilateral triangles, squares, pentagons, hexagons, etc.

[0068] Specifically, the outer cylinder 21 can be constructed by sequentially connecting the corner points of its cross-section to form a regular polygon structure, with adjacent corner points connected by concave arc structures to form the concave walls. Preferably, the radius of the arc structure is equal to the distance between each corner and the center.

[0069] The inner diameter of the heat pipe 1 is D1, the width of the heat plate 12 is L1, and the width of the fin 13 is L2; ​​the included angle between the fin 13 and the heat plate 12 is φ1 (approximately 30°-60°); the included angle between the inner concave wall end of the outer cylinder 21 and the straight line connecting the second ends of the two adjacent heat plates 12 is φ2 (≤30°).

[0070] Assuming the thermal conductivity λ of the heat-conducting plate 12, fins 13, etc., is constant, the convective heat transfer coefficient h on the fin surface is constant, and the ambient temperature T around the fins is constant. a The fin width L is constant, much larger than the fin thickness δ, and there is no heat source inside the fin; the tube wall temperature 11 is constant. h This implementation example uses a rectangular straight rib for calculation:

[0071] First, the fin efficiency is defined as the ratio of the actual heat transfer Q of the fin to the heat transfer Q0 assuming the entire surface of the fin is at the fin base temperature.

[0072] In the formula, m represents the combination parameters of the fins, P (m, i.e., the unit is meters) represents the perimeter of the heat transfer cross section, and Ac (m 2 H'(m) represents the cross-sectional area along the radial rib length direction; H'(m) represents the equivalent length of the rib along the radial direction; H(m) represents the length of the rib along the radial direction; δ(m) represents the rib thickness; L(m) represents the rib width along the axial direction; h(W·m) represents the cross-sectional area along the radial rib length direction. -2 K -1 ) represents the heat transfer coefficient of the fin surface, λ (W·m -1 K -1 () indicates the thermal conductivity of the fin.

[0073] Second, the actual heat exchange of the fins is Q. Q0 = h·P·H'·(T) h -T a(1-4) Q=Q0·η f =λ·A c ·m·(T h -T a )·th(mH') (1-5)

[0074] Third, the criterion for fins to enhance heat dissipation: Bi<1

[0075] Bi < 1 is used as a criterion for enhanced heat dissipation of fins; for rectangular and triangular fins with uniform cross-section, Bi < 0.25.

[0076] Fourth, the design of the radial rib length.

[0077] th(mH') is the hyperbolic tangent function, and the relationship curve of mH'-f(Q) is shown in Figure 8.

[0078] As shown in the figure, the fin design requires m·H'≈3 to maximize the heat dissipation of the fins. Therefore, in the engineering design, the fin design requires m·H'≤3, that is, the fin height design L≤3 / m. This is the requirement followed when the width of the heat conduction plate 12 is L1 and the width of the fin 13 is L2.

[0079] In some embodiments, the corner points of the outer contour of the outer cylinder 21 can be sequentially connected to form a regular hexagonal structure, allowing multiple heat transfer components to be arrayed. As shown in the attached figures, seven heat transfer components can be combined to form an approximately cylindrical structure, which can be placed in a mating cylindrical cavity. One heat transfer component is located in the middle, while the other six heat transfer components are closely arranged around the middle heat transfer component, with their sides aligned. At this time, each side of the middle heat transfer component forms a mass transfer channel 5 with the corresponding side of the external heat transfer component on the corresponding side. Mass transfer channels 5 can also be formed between the corresponding sides of adjacent external heat transfer components. At the same time, mass transfer channels 5 are also formed between the external heat transfer components and the cavity wall of the cylindrical cavity. Meanwhile, the corners of each heat transfer component form abutment support position, and the external heat transfer components can form abutment relationship with the cavity wall of the cylindrical cavity, making the overall structure more compact and mutually supportive, thus providing a very good support effect.

[0080] In some embodiments, the heat-conducting pipe 1, the outer cylinder 21, and the heat-conducting plate 12 are integrated into a single component, particularly as an integral metal structure. In this case, the heat of the heat exchange fluid can be quickly transferred through the metal frame, reducing the parasitic heat loss of the supporting structure and minimizing the inherent heat transfer resistance of the adsorption bed.

[0081] Based on the heat transfer components provided in the above embodiments, the present invention also provides an adsorption bed, which includes any one of the heat transfer components in the above embodiments, including a chamber, wherein the heat transfer component is disposed in the chamber, and adsorbent particles 23 are placed inside the heat transfer component. Since this adsorption bed uses the heat transfer components in the above embodiments, the beneficial effects of this adsorption bed are explained in the above embodiments.

[0082] The chambers are like the cylindrical cavity described above.

[0083] In some embodiments, further considering that the outer cylinder 21 can also conduct heat and the outer wall of the outer cylinder 21 can still transfer heat, in order to improve heat transfer, an adsorbent layer can be attached to the outer wall of the outer cylinder 21 of the heat transfer component, and an opening is formed to avoid the vent 22 of the outer cylinder 21. Of course, the thickness of the adsorbent layer should be controlled to avoid blocking the mass transfer channel 5.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat transfer component for an adsorption bed, characterized in that, include: Heat pipe (1), the cavity of which is used to flow heat exchange fluid (3); The outer cylinder (21) is sleeved on the outside of the heat-conducting pipe (1) to form a storage cavity (2) for placing the adsorbent between the outer cylinder (21) and the heat-conducting pipe (1). The outer cylinder (21) is provided with a vent hole (22) that runs through the inside and outside. A heat-conducting plate (12) is arranged with its thickness direction intersecting the extension direction of the heat-conducting pipe (1). One side edge of the heat-conducting plate (12) is connected to the outer wall of the heat-conducting pipe (1) and makes thermal contact, while the other side edge is connected to the inner wall of the outer cylinder (21).

2. The heat transfer component of the adsorption bed according to claim 1, characterized in that, At least one side wall of the outer cylinder (21) is a concave wall that is recessed in the circumferential direction, and a plurality of ventilation holes (22) are provided on the concave wall.

3. The heat transfer component of the adsorption bed according to claim 2, characterized in that, The thickness direction of the heat-conducting plate (12) is perpendicular to the extension direction of the heat-conducting pipe (1).

4. The heat transfer component of the adsorption bed according to claim 2, characterized in that, The outer cylinder (21) is a heat-conducting structure, and the heat-conducting plate (12) is in heat-conducting contact with the outer cylinder (21).

5. The heat transfer component of the adsorption bed according to claim 4, characterized in that, The heat pipe (1), the heat plate (12) and the outer cylinder (21) are constructed as an integral structural component; the integral structural component is a stretched component formed by extending along the extension direction of the heat pipe (1); the cross-section of the heat pipe (1) and the outer cylinder (21) are both annular; the cross-section of the heat plate (12) is elongated.

6. The heat transfer component of the adsorption bed according to claim 2, characterized in that, Multiple concave walls are connected in sequence to form a ring structure, and the heat-conducting plate (12) is connected to the junction of adjacent concave walls.

7. The heat transfer component of the adsorption bed according to claim 6, characterized in that, The heat-conducting plate (12) has fins (13) on at least one side. One end of the fins (13) is connected to the center of the heat-conducting plate (12) in the radial direction, and the other end extends radially outward.

8. The heat transfer component of the adsorption bed according to claim 7, characterized in that, The concave wall is provided with multiple rows of ventilation holes along the circumferential direction, and each row of ventilation holes is arranged with multiple ventilation holes (22) in sequence along the extension direction of the heat pipe (1); along the circumferential direction, the density of the ventilation hole group located in the middle position is greater than the density of the ventilation hole group located on both sides.

9. The heat transfer component of the adsorption bed according to any one of claims 2-8, characterized in that, The corner points of the outer contour of the cross section of the outer cylinder (21) are connected in sequence to form a regular polygon structure, and adjacent corner points are connected by an inwardly concave arc structure to form the concave wall.

10. The heat transfer component of the adsorption bed according to claim 9, characterized in that, The corner points of the outer contour of the cross section of the outer cylinder (21) are connected in sequence to form a regular hexagonal structure.

11. An adsorption bed, comprising a chamber, characterized in that, It also includes a heat transfer member as described in any one of claims 1-10, wherein the heat transfer member is disposed in the chamber and adsorbent particles (23) are placed inside the heat transfer member.

12. The adsorption bed according to claim 11, characterized in that, The outer wall of the outer cylinder (21) of the heat transfer component is covered with an adsorbent layer and forms an opening that avoids the vent hole (22) of the outer cylinder (21).

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