An adsorption bed

Abstract

This invention discloses an adsorption bed, comprising an adsorbent, an adsorption chamber, and a communicating channel extending into the adsorption chamber. The adsorption chamber wall is provided with a working fluid inlet for the flow of a gaseous adsorbent. The bed also includes multiple heat transfer modules, each located within the adsorption chamber. Each heat transfer module includes a heat-conducting pipe and a heat-conducting support device surrounding and fixedly connected to the heat-conducting pipe, making thermal contact with it. The heat-conducting pipe communicates with the communicating channel. The heat-conducting support device carries the adsorbent, which is located in a cavity within the adsorption chamber communicating with the working fluid inlet. With this modular design, maintenance only requires removing the corresponding heat transfer module, making maintenance more convenient. Therefore, this adsorption bed effectively solves the problem of high cost in adsorption beds.

Description

Technical Field

[0001] This invention relates to the field of adsorption technology, and more specifically, to an adsorption bed. Background Technology

[0002] At low temperatures, the adsorbent in an adsorption bed can adsorb or / and bind to gaseous adsorbates. This can be a physical change, such as the gaseous working fluid changing into a liquid state to be adsorbed onto the adsorbent; or a chemical change, where the adsorbate chemically binds to the adsorbent, resulting in the adsorption of the adsorbate. At high temperatures, the adsorbent can absorb heat to generate gaseous adsorbates, which are then released. This process is the reverse of the above; it can be a change from liquid to gas or a chemical change to release the gaseous working fluid.

[0003] 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.

[0004] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: the core components of the adsorption bed, namely the adsorbent and the heat transfer components that contain the adsorbent, will experience performance degradation during long-term use, thus requiring maintenance. However, the current adsorption bed is too large and heavy, which makes maintenance difficult and results in high cost. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an adsorption bed that can effectively solve the problem of high cost of adsorption beds.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An adsorption bed includes an adsorbent, an adsorption chamber, and a communicating channel extending into the adsorption chamber. The adsorption chamber has a working fluid inlet on its wall for the flow of a gaseous adsorbent. The bed also includes multiple heat transfer modules located within the adsorption chamber. Each heat transfer module includes a heat-conducting pipe and a heat-conducting support device surrounding and fixedly connected to the heat-conducting pipe, making thermal contact with it. The heat-conducting pipe communicates with the communicating channel. The heat-conducting support device carries the adsorbent, which is located within a cavity of the adsorption chamber communicating with the working fluid inlet.

[0007] In the aforementioned adsorption bed, multiple heat transfer modules are configured. Each heat transfer module forms a heat-conducting pipe for the flow of the heat exchange fluid and a heat-conducting support device for heat exchange with the fluid. This heat-conducting support device supports the adsorbent and transfers heat, thus forming a separate adsorption bed module. This allows for the selection of the appropriate number of heat transfer modules based on the design power of the adsorption bed during actual installation, without the need to redesign new support devices. Furthermore, this modular design simplifies maintenance by requiring only the removal of the corresponding heat transfer module. In conclusion, this adsorption bed effectively addresses the issue of high cost in adsorption bed systems.

[0008] In some technical solutions, the heat pipe and the heat-conducting support device are integrally connected.

[0009] In some technical solutions, the heat transfer module is a stretched member formed by extending along the extension direction of the heat pipe.

[0010] In some technical solutions, multiple heat transfer modules are arranged side by side along a preset direction, and the extension direction of the heat pipe is perpendicular to the preset direction.

[0011] In some technical solutions, the heat transfer modules are fixedly connected to each other to form a heat transfer module. The adsorption chamber is provided with the connecting channels at both ends along the extension direction of the heat-conducting pipe to form an inlet channel and an outlet channel, respectively. The heat-conducting pipes of the heat transfer module are connected in series through connecting pipes and connected between the inlet channel and the outlet channel. The adsorption chamber has annularly distributed shoulders on its cavity wall to support the outer periphery of the heat transfer module.

[0012] In some technical solutions, a cylindrical shell and a first cover plate and a second cover plate located at both ends of the cylindrical shell are also included to enclose and form the adsorption chamber, and the inner wall of the lower end of the cylindrical shell is provided with the shoulder.

[0013] In some technical solutions, the thermally conductive support device includes multiple tree-shaped thermally conductive structures evenly arranged around the thermally conductive pipe. The roots of the tree-shaped thermally conductive structures are connected to the pipe wall of the thermally conductive pipe and are thermally connected, and the tops extend away from the pipe wall. The adsorbent is an adsorbent layer, and the surface of the tree-shaped thermally conductive structure is covered with an adsorbent layer. The surface of the adsorbent layer forms a mass transfer cavity that communicates with the working fluid inlet.

[0014] In some technical solutions, the tree-shaped heat-conducting structure includes: The ribs are arranged in a forked cross-section; The main rib has a long strip-shaped cross-section and extends radially. The first end of the main rib is fixedly connected to the wall of the heat-conducting pipe and makes thermal contact. The two tree-branch-shaped ribs are respectively arranged on both sides of the thickness direction of the main rib.

[0015] In some technical solutions, the rib assembly includes: The branch-shaped rib has, in cross-section, a first end connected to the middle of the main rib in the extending direction, and a second end extending radially outward away from the main rib. In the cross-section of the outer rib portion, the first end is connected to the branch-shaped rib, and the second end extends away from the main rib. In the inner rib portion, in cross-section, the first end is connected to the branch-shaped rib, and the second end extends toward the main rib.

[0016] In some technical solutions, the thermally conductive support device includes: 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. A heat-conducting plate is provided, with its thickness direction perpendicular to 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.

[0017] In some technical solutions, at least one sidewall of the outer cylinder is a concave wall that is recessed in the circumferential direction, and a plurality of vent holes are provided on the concave wall; the plurality of concave walls are connected in sequence to form an annular structure, and the heat-conducting plate is connected to the junction of the adjacent concave walls; at least one side of the heat-conducting plate is provided with fins, one end of the fins is connected to the center of the heat-conducting plate in the radial direction, and the other end extends radially outward.

[0018] In some technical solutions, the corner points of the outer contour of the outer cylinder cross section can be connected in sequence to form a regular hexagon, and adjacent corner points are connected by an inwardly concave arc structure to form the concave wall. At least three heat transfer modules are arranged in a ring and closely adjacent to each other, so that a mass transfer channel is formed between the concave walls of adjacent heat transfer modules.

[0019] In some technical solutions, at least a portion of the adsorbent is an adsorbent layer, which is attached to the outer wall of the outer cylinder of the heat transfer module and forms an opening that avoids the vent hole. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure of the adsorption bed provided in an embodiment of the present invention; Figure 2 A schematic diagram of the cross-sectional structure of the adsorption bed provided in an embodiment of the present invention; Figure 3 A schematic diagram of the cross-sectional structure of a heat transfer component of an adsorption bed provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the operation of the heat transfer component provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the heat transfer component filled with adsorbent particles according to an embodiment of the present invention. Figure 6 A three-dimensional structural diagram of seven heat transfer components arranged side by side according to an embodiment of the present invention; Figure 7 A schematic diagram of the end structure of seven heat transfer components arranged side by side according to an embodiment of the present invention; Figure 8 A schematic diagram of the cross-sectional structure of the second heat transfer component of the adsorption bed provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the second type of heat transfer component after the adsorbent layer is attached, as provided in an embodiment of the present invention. Figure 10 This is a schematic diagram of the cross-sectional structure of the tree-shaped heat-conducting structure provided in an embodiment of the present invention.

[0022] The following labels are shown in the attached diagram: 1. Heat-conducting pipe; 2. Heat-conducting support device; 3. Mass transfer chamber; 4. Heat exchange fluid chamber; 5. Adsorbent layer; 6. Adsorbent particles; 7. Adsorption chamber; 8. Connecting channel; 9. Working fluid inlet; 10. Gaseous adsorption working fluid. Main fin 21, fin group 22, heat conduction plate 23, fin 24, outer cylinder 25, storage cavity 26, vent hole 27, heat transfer module 28; Branch-shaped rib 221, inner rib portion 222, first outer rib portion 223, second outer rib portion 224; Cylinder shell 31, first cover plate 32, second cover plate 33, shoulder 34. Detailed Implementation

[0023] This invention discloses an adsorption bed to effectively solve the problem of high cost of adsorption beds.

[0024] 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.

[0025] Please see Figures 1-10 , Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure of the adsorption bed provided in an embodiment of the present invention; Figure 2 A schematic diagram of the cross-sectional structure of the adsorption bed provided in an embodiment of the present invention; Figure 3 A schematic diagram of the cross-sectional structure of a heat transfer component of an adsorption bed provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the operation of the heat transfer component provided in an embodiment of the present invention; Figure 5 A schematic diagram of the cross-sectional structure of the heat transfer component after filling with adsorbent particles 6 according to an embodiment of the present invention; Figure 6 A three-dimensional structural diagram of seven heat transfer components arranged side by side according to an embodiment of the present invention; Figure 7 A schematic diagram of the end structure of seven heat transfer components arranged side by side according to an embodiment of the present invention; Figure 8 A schematic diagram of the cross-sectional structure of the second heat transfer component of the adsorption bed provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the second type of heat transfer component after the adsorbent layer 5 is attached, as provided in an embodiment of the present invention. Figure 10 This is a schematic diagram of the cross-sectional structure of the tree-shaped heat-conducting structure provided in an embodiment of the present invention.

[0026] In some embodiments, an adsorption bed is provided, specifically the adsorption bed including an adsorbent, an adsorption chamber 7, a connecting channel 8, and a heat transfer module, wherein the heat transfer module is a modular structure, and multiple heat transfer modules can be provided in the adsorption bed.

[0027] The adsorption bed can be equipped with an outer shell to form a chamber, which is referred to as adsorption chamber 7 for ease of description. Part of the adsorption chamber 7 serves as a receiving chamber for the adsorbent; at the same time, a portion of the cavity needs to be reserved as a mass transfer cavity for the gaseous adsorption working fluid 10. The receiving chamber and the mass transfer cavity are interconnected so that the gaseous adsorption working fluid 10 can flow between the receiving chamber and the mass transfer cavity; at the same time, a heat exchange cavity for the flow of heat exchange fluid needs to be separated by structures such as the heat pipe 1 described later.

[0028] The adsorption chamber 7 has working fluid inlets 9 on its walls for the flow of gaseous adsorbent 10. At least two working fluid inlets 9 can be provided. At least one working fluid inlet 9 connects to the evaporation chamber of the evaporator to introduce the gaseous adsorbent from the evaporation chamber, and at least one working fluid inlet 9 connects to the condensation chamber of the condenser to introduce the gaseous adsorbent into the condensation chamber. The working fluid inlets 9 should also connect to the mass transfer cavity to transfer the gaseous adsorbent.

[0029] The connecting channel 8 extends into the adsorption chamber to introduce heat exchange fluid into the heat exchange chamber. During the adsorption stage, it is used to introduce a low-temperature heat exchange fluid, while during the desorption stage, it is used to introduce a high-temperature fluid for heat exchange with the adsorbent. Multiple connecting channels 8 are provided to introduce high-temperature fluid and low-temperature fluid respectively; alternatively, one connecting channel 8 can be used to alternately introduce high-temperature fluid and low-temperature fluid.

[0030] The heat transfer module mainly includes a heat pipe 1 and a heat-conducting support device 2. The heat pipe 1 can be used to flow heat exchange fluid. The heat pipe 1 is used to connect with the above-mentioned connecting channel 8. That is, the heat pipe 1 serves as a heat exchange fluid cavity 4, so that high-temperature fluid and low-temperature fluid can be introduced alternately to perform desorption and adsorption alternately.

[0031] Here, heat pipe 1 refers to a heat-conducting structure capable of conducting heat through its wall. The heat exchange fluid can be either the cooling fluid during the adsorption stage, where heat from the external adsorbent is transferred through the pipe wall to the cooling fluid, cooling the adsorbent and enabling it to adsorb the working medium; or the heating fluid during the desorption stage, where heat from the internal heating fluid is transferred through the pipe wall to the external adsorbent, causing it to desorb the working medium. Heat pipe 1 can be a circular or elliptical tube. While a flat tube increases the contact area between the tube wall and the heat exchange fluid, resulting in better heat exchange, it is less suitable for uniform arrangement.

[0032] The heat-conducting support device 2 is arranged around the heat-conducting pipe 1 and is fixedly connected to the heat-conducting pipe 1, making thermal contact with it. By arranging the heat-conducting support device 2 around the central axis of the heat-conducting pipe 1, heat is uniformly transferred to the heat-conducting pipe 1 in the circumferential direction, achieving uniform heat conduction. The fixed connection between the heat-conducting support device 2 and the heat-conducting pipe 1 allows the heat-conducting pipe 1 to support the heat-conducting support device 2, facilitating installation.

[0033] The thermally conductive support device 2 carries the adsorbent to support it and can transfer heat with the adsorbent, so that it can support more adsorbent while supporting the adsorbent.

[0034] The structure of the thermally conductive support device 2 is not limited: it can be an attachment structure such as annularly distributed ribs for attaching the adsorbent; it can also be an enclosing structure to surround the aforementioned receiving cavity, while ensuring structural communication; or it can be a tray structure to support the adsorbent. Of course, the thermally conductive support device 2 can include other structures. Furthermore, the thermally conductive support device 2 can include one or more, or even all, of the attachment structure, enclosing structure, and tray structure, such as having both an attachment structure and an enclosing structure simultaneously.

[0035] The adsorbent supported by the thermally conductive support device 2 should be located in the cavity of the adsorption chamber 7 that communicates with the working fluid inlet 9, i.e., in the aforementioned receiving cavity, so as to be able to communicate with the mass transfer cavity. That is, the adsorbent is attached to the surface of the thermally conductive support device 2, and this surface is isolated from the lumen of the heat-conducting pipe 1, so that after installation, the surface attached to the adsorbent faces the receiving cavity.

[0036] In the aforementioned adsorption bed, multiple heat transfer modules are provided. Each heat transfer module forms a heat-conducting pipe 1 for the flow of the heat exchange fluid and a heat-conducting support device 2 for heat exchange with the heat exchange fluid. The heat-conducting support device 2 supports the adsorbent and transfers heat, thus forming a separate adsorption bed module. This allows for the selection of the appropriate number of heat transfer modules based on the design power of the adsorption bed during actual installation, without the need to redesign new support devices. Furthermore, the modular design simplifies maintenance by requiring only the removal of the corresponding heat transfer module. In conclusion, this adsorption bed effectively solves the problem of high cost associated with adsorption beds.

[0037] In some embodiments, in the heat-conducting component, the heat-conducting pipe 1 and the heat-conducting support device 2 are integrally connected, that is, during manufacturing, a single integral part is produced, and at least one part of this integral part is the heat-conducting pipe 1, and at least another part is the heat-conducting support device 2. Specifically, the integral molding method can be casting, extrusion molding, or a combination of multiple molding methods. This integral connection ensures the heat transfer effect between the heat-conducting support device 2 and the heat-conducting pipe 1, thereby ensuring the lateral heat transfer length and improving the heat transfer performance of a single heat transfer module.

[0038] Specifically, the thermally conductive support device 2 preferably adopts a topological structure to improve heat transfer performance. Alternatively, a cage-like structure can be used to increase the lateral cross space and improve lateral heat transfer. The thermally conductive support device 2 can also be an enclosed structure.

[0039] In some embodiments, the heat transfer module may be a stretched member formed by extending along the extension direction of the heat pipe 1. A stretched member 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 by extrusion, and the specific forming method can refer to the forming method of aluminum profiles. The stretched member can be the aforementioned base material, in which case the size and shape of each cross-section of the stretched member are equal; or it can be the aforementioned base material with a small number of openings or other forms of removal. Specifically, the cross-sectional shape and size of at least one section of the integral part along the extension direction can be equal. During extrusion molding, the stretched member is formed simultaneously with the heat-conducting support device 2 and the heat pipe 1.

[0040] In some embodiments, for ease of setup, multiple heat transfer modules can be arranged side-by-side along a preset direction, with the extension direction of the heat pipe 1 perpendicular to the preset direction. That is, multiple heat transfer modules are arranged side-by-side in a horizontally open manner for easy arrangement. Specifically, the heat pipe 1 can be vertically positioned, thus allowing multiple heat transfer modules to be arranged horizontally side-by-side, such as in a horizontal array. On one hand, arranging multiple heat transfer modules side-by-side makes each individual heat transfer module detachable, allowing for flexible adjustment of the number of modules according to cooling requirements; simultaneously, if a single module malfunctions, it can be flexibly replaced. On the other hand, the inlet and outlet of the heat pipe 1 and the inlet and outlet of the mass transfer channel can be located on the same side, facilitating system integration and assembly.

[0041] In some embodiments, as shown in the appendix Figure 1 , 2 As shown, the heat transfer modules are fixedly connected to each other to form a heat transfer module 28. The corresponding adsorption chamber 7 has connecting channels 8 at both ends along the extension direction of the heat-conducting pipe 1, serving as an inlet channel and an outlet channel, respectively. Each heat-conducting pipe 1 of the heat transfer module 28 is connected in series via a connecting pipe between the inlet channel and the outlet channel. The heat exchange fluid introduced through the inlet channel passes through each heat-conducting pipe 1 sequentially and then flows out from the outlet channel. The adsorption chamber 7 has annularly distributed shoulders 34 on its cavity wall to support the outer periphery of the heat transfer module 28. The degree of protrusion of the shoulders 34 is controlled to avoid interfering with the mass transfer channel.

[0042] Specifically, an adsorption chamber 7 can be formed by enclosing a shell 31 and a first cover plate 32 and a second cover plate 33 located at both ends of the shell 31. A shoulder 34 is provided on the lower inner wall of the shell 31. One of the first cover plate 32 and the second cover plate 33 has an inlet channel, and the other has an outlet channel. Correspondingly, working fluid inlets 9 can be provided at both ends of the adsorption chamber 7 along the extension direction of the heat pipe 1, serving as a working fluid inlet and a working fluid outlet, respectively. The working fluid inlet connects to the outlet of the gaseous adsorption working fluid 10 of the evaporator, while the working fluid outlet connects to the inlet of the gaseous adsorption working fluid 10 of the condenser.

[0043] In some embodiments, the thermally conductive support device 2 may include a tree-shaped thermally conductive structure, such as multiple tree-shaped thermally conductive structures uniformly arranged around the thermally conductive pipe 1.

[0044] A tree-shaped heat-conducting structure is a type of tree-like structure. A tree-shaped structure refers to a structure that gradually branches out into multiple strips from the root to the top, and these strips can further branch out into more strips, gradually expanding. Specifically, a tree-shaped structure can also be called a topological structure or a bunch-of-pearls structure; in this case, the tree-shaped heat-conducting structure could be a topological heat-conducting structure. The tree-shaped heat-conducting structure can be a three-dimensional tree structure, in which case the strips can extend in all directions; or it can have a tree-like cross-section, in which case the strips only extend laterally, while in the longitudinal direction, each strip can extend into a sheet-like structure, such as in a stretched component, where the cross-section has a tree-like structure. A tree-shaped heat-conducting structure refers to a type of heat-conducting structure, such as a metal structure.

[0045] The root of the tree-shaped heat-conducting structure is connected to the outer wall of the heat-conducting pipe 1 and makes thermal contact. The root of the tree-shaped heat-conducting structure and the heat-conducting pipe 1 can be fixedly connected later, such as by welding; or they can be integrally molded, i.e., manufactured as a single piece. The tree-shaped heat-conducting structure and the heat-conducting pipe 1 can be made of the same material or different materials.

[0046] Furthermore, the top of the tree-shaped heat-conducting structure extends away from the pipe wall to penetrate into the mass transfer cavity 3, forming an extended space in the wall thickness direction. This allows the heat from the heat exchange fluid to be rapidly transferred from the heat exchange fluid cavity 4 to the mass transfer cavity 3 along the wall thickness direction. From a positional perspective, it can also be considered that the top of the tree-shaped heat-conducting structure is farther from the heat exchange fluid it transfers heat to than the root, thus improving heat transfer in the lateral direction.

[0047] Due to its dendritic thermally conductive structure, the surface area is increased, resulting in high heat transfer efficiency between the adsorbent and the adsorbent. Furthermore, the growth structure along the heat transfer direction allows for orderly heat transfer, further enhancing efficiency. Simultaneously, the uniform heating of the adsorbent facilitates the flow of the adsorbent working fluid.

[0048] In some embodiments, an adsorbent layer 5 may be attached to the surface of the dendritic heat-conducting structure, and an adsorbent layer 5 may also be attached to the outer wall of the heat-conducting pipe 1. Further, a mass transfer cavity may be formed on the surface of the adsorbent layer 5; that is, the adsorbent layer 5 should not be too thick, so that the adsorbent layer 5 surrounds and forms a cavity, serving as a mass transfer channel. When multiple mass transfer channels are formed, each mass transfer channel has an opening at both ends in the extending direction of the heat-conducting pipe 1, serving as a conduction port.

[0049] The surface of the tree-shaped heat-conducting structure is coated with an adsorbent layer 5, and the wall surface of the heat-conducting pipe 1 connected to the mass transfer cavity 3 is also coated with an adsorbent layer 5. The adsorption method can be a coating, a dip coating, a spray coating, or a spin coating. The arc-shaped structure is also conducive to spin coating.

[0050] In some embodiments, the tree-shaped heat-conducting structure may include fin group 22 and main fin 21.

[0051] The fin assembly 22 has a tree-branch-shaped cross-section, meaning that multiple fins are combined to form a structure that can be Y-shaped, X-shaped, or U-shaped to form multi-level branches. The cross-section refers to the section perpendicular to the extension direction of the heat pipe 1.

[0052] The main fin 21 has a long, elongated cross-section that extends radially to ensure heat transfer in the radial direction. The thickness of the main fin 21 can be greater than the thickness of each fin in the fin group 22. Alternatively, the thickness of the main fin 21 can gradually decrease along the direction away from the pipe wall it is connected to, to reduce unnecessary space occupation based on the characteristics of heat transfer. The first end of the main fin 21 is fixedly connected to and in thermal contact with the wall of the heat pipe 1, achieving a fixed connection and thermal contact between the tree-shaped heat conduction structure and the wall of the heat pipe 1. Specific requirements and methods are described above.

[0053] Furthermore, two of the branch-shaped ribs can be respectively positioned on both sides of the main rib 21 in the thickness direction, so as to extend in the thickness direction of the main rib 21. The thickness direction of the main rib 21 and other ribs is generally perpendicular to the extension direction of the heat pipe 1.

[0054] Further details are attached. Figure 10 As shown, the rib assembly 22 can include a branch-type rib 221, an outer rib portion, and an inner rib portion 222.

[0055] The branch-shaped rib 221 is elongated in cross-section. The first end is connected to the middle of the main rib 21 in the extension direction, and the second end extends radially outward away from the main rib 21 to extend the heat in the external space in the circumferential direction. At the same time, the radial outward extension can make the distribution more uniform.

[0056] The outer rib portion is elongated in cross-section. The first end of the outer rib portion is connected to the branch-shaped rib 221, and the second end extends away from its corresponding main rib 21 to better expand and branch outward.

[0057] The inner rib portion 222 is elongated in cross-section. The first end of the inner rib portion 222 is connected to the branch-type rib 221, and the second end extends toward the corresponding main rib 21 to further fill the extended space formed by the branch-type rib 221 and the main rib 21, so as to ensure both distribution density and uniform distribution.

[0058] It should be noted that the rib assembly 22 may include only one branch-type rib 221, but may include one or more outer rib portions and one or more inner rib portions 222. Specifically, this may need to be configured.

[0059] Continue to refer to the appendix Figure 10 For better uniform distribution, the rib group 22 preferably includes two outer rib portions and one inner rib portion 222.

[0060] The distance between the second end of the branch-type fin 221 and the central axis of the heat pipe 1 is less than the distance between the second end of the main fin 21 and the central axis of the heat pipe 1. That is, the circumferential diameter of the second end of the main fin 21 is greater than the diameter of the second end of the branch-type fin 221, which can provide a space for the outer fin portion and the inner fin portion 222 connected to the second end of the branch-type fin 221.

[0061] The first end of the inner rib portion 222 connects to the second end of the branch-type rib 221, extends circumferentially, and has a radially outward convex arc-shaped structure. Specifically, the second end of the inner rib portion 222 can be brought closer to the second end of the main rib 21. Specifically, the distance between the second end of the inner rib portion 222 and the central axis of the heat pipe 1 is equal to the distance between the second end of the main rib 21 and the central axis of the heat pipe 1, so as to form a better uniform spread. At this time, the outer section of the main rib 21, the inner rib portion 222, and the branch-type rib 221 form a triangular cavity, and an opening is formed between the second end of the inner rib portion 222 and the second end of the main rib 21 to further increase the heat transfer area.

[0062] The distance between the second end of the inner rib portion 222 and the central axis of the heat pipe 1 is equal to or approximately equal to the distance between the second end of the main rib portion 21 and the central axis of the heat pipe 1. The error should not exceed 10%, which can also ensure a more uniform spread.

[0063] Of the two outer rib portions, one is the first outer rib portion 223 and the other is the second outer rib portion 224.

[0064] The first end of the first outer rib portion 223 connects to the second end of the branch-shaped rib 221 and extends circumferentially, forming a radially outward convex arc-shaped structure. The second end of the first outer rib portion 223 extends radially outward, meaning it gradually extends radially outward from the first end to the second end. At this time, a V-shaped structure with a relatively large opening angle is formed between the first outer rib portion 223 and the inner rib portion 222.

[0065] The first end of the second outer rib portion 224 is connected to the middle of the branch-shaped rib 221 in the direction of extension, and extends circumferentially with a radially outward convex arc-shaped structure. The second end bends towards the root, that is, extends towards the heat pipe 1. At this time, the radial distance between the second end of the second outer rib portion 224 and the second end of the first outer rib portion 223 gradually increases, so as to present a gradually expanding space for better expansion.

[0066] The aforementioned rib structures extend to form arc-shaped structures, thereby increasing the exposed surface area. Those having the aforementioned rib group 22 can achieve better performance when an adsorbent is attached.

[0067] In some embodiments, when multiple dendritic thermal conductive structures are provided, the outer rib portions of adjacent dendritic thermal conductive structures can be arranged close together to allow the adsorbent to transition between them. They do not need to be connected to each other; a certain gap can be formed, and based on the characteristics of the adsorbent itself, it can still adhere continuously to improve strength. Of course, the gaps can also be relatively large.

[0068] Specifically, as shown in the attached figure, in two adjacent dendritic heat-conducting structures, the second end of the first outer rib portion 223 of one dendritic heat-conducting structure and the second end of the other first outer rib portion 223 are close to each other, but need to be spaced apart, so that the adsorbent can extend continuously between them; correspondingly, the second end of the second outer rib portion 224 of one dendritic heat-conducting structure and the second end of the other second outer rib portion 224 are close to each other, but spaced apart, so that the adsorbent can extend continuously between them.

[0069] In some embodiments, cavities are formed around the fins, not limited to cavities formed around a single tree-shaped heat-conducting structure, but also cavities formed between adjacent tree-shaped heat-conducting structures, and cavities formed in conjunction with the tube wall.

[0070] In use, a portion of the cavity can be used to hold the adsorbent particles 6, while the other portion serves as a mass transfer channel. The ribs between the cavities can be fitted with holes and / or gaps to allow the adsorbent working fluid to flow between the mass transfer channel and the adsorbent particles 6. Alternatively, the entire cavity can be filled with adsorbent particles 6 to allow the adsorbent working fluid to be transferred radially outward.

[0071] In some embodiments, the thermally conductive support device 2 may include an outer cylinder 25 and a thermally conductive plate 23, wherein the thermally conductive pipe 1 is used to flow the heat exchange fluid. The thermally conductive pipe 1 refers to a thermally conductive structure capable of conducting heat through its pipe wall. The heat exchange fluid here can be: a cooling fluid in the adsorption stage, in which heat from the external adsorbent can be transferred to the cooling fluid through the pipe wall to cool the adsorbent, thereby enabling the adsorbent to adsorb the working fluid; or a heating fluid in the desorption stage, in which heat from the internal heating fluid can be transferred to the external adsorbent through the pipe wall to desorb the working fluid. The thermally conductive pipe 1 can be a circular pipe or an elliptical pipe. Of course, the thermally conductive pipe 1 can also be a flat pipe. Although the contact area between the pipe wall and the heat exchange fluid is increased, resulting in better heat exchange, it is not conducive to uniform arrangement.

[0072] The outer cylinder 25 is fitted around the heat-conducting pipe 1, forming a storage cavity 26 for placing the adsorbent between the outer cylinder 25 and the heat-conducting pipe 1. The cross-section of the storage cavity 26 can be annular or C-shaped. Preferably, the cross-section of the storage cavity 26 is annular, and the width is equal in all directions.

[0073] The outer cylinder 25 is provided with a through-hole 27, allowing external adsorbent to enter the storage chamber 26 through the vent 27, and similarly, the gaseous adsorbent 10 in the storage chamber 26 can enter the outer side of the outer cylinder 25 through the vent 27. In use, the storage chamber 26 is filled with adsorbent, particularly granular adsorbent particles 6, with cavities formed between the particles to facilitate the transfer of the gaseous adsorbent. Simultaneously, the adsorbent particles 6 are constrained within the storage chamber 26 by the outer cylinder 25 and the heat-conducting pipe 1; therefore, the vent 27 should not be too large to prevent the adsorbent particles 6 from escaping through it. Taking adsorption as an example, the external gaseous adsorbent 10 enters the storage chamber 26 through the vent 27 and flows between the adsorbent particles 6, allowing the adsorbent particles 6 to gradually adsorb the gaseous adsorbent 10. The vent 27 can be an array of holes, with a square or circular cross-section.

[0074] The thickness direction of the heat-conducting plate 23 is perpendicular to the extension direction of the heat-conducting pipe 1, so as to separate it in the storage cavity 26, so as to ensure that the heat-conducting plate 23 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 23, and then transferred from the heat-conducting plate 23 to the adsorbent.

[0075] Furthermore, one side edge of the heat-conducting plate 23 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 23, and the heat of the heat-conducting plate 23 can also be transferred to the heat-conducting pipe 1, and then to the internal heat exchange fluid.

[0076] The other side edge of the heat-conducting plate 23 is connected to the inner wall of the outer cylinder 25 to fix the outer cylinder 25. The connection between the heat-conducting plate 23 and the outer cylinder 25 forms a support between the outer cylinder 25 and the heat-conducting pipe 1, which helps to maintain the stability of the storage cavity 26 and ensures the looseness of the adsorbent particles 6 therein. The connection method can be welding or integral molding.

[0077] The outer cylinder 25 can be formed by combining perforated plate structures or by using a mesh structure, so that the mesh forms ventilation holes 27. The outer cylinder 25 can also be formed by spirally winding wire and being supported by a heat-conducting plate 23 to form a cylindrical structure.

[0078] A heat-conducting plate 23 is disposed between the outer cylinder 25 and the heat-conducting pipe 1, providing support between them. Simultaneously, as a heat-conducting plate 23, heat can be transferred laterally, increasing the lateral heat conduction depth and effectively expanding the width of the storage cavity 26 to improve heat transfer efficiency. Therefore, the aforementioned heat-conducting plate 23 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 a mass transfer effect.

[0079] In some embodiments, at least one side wall of the outer cylinder 25 may be a concave wall that is recessed in the circumferential direction, and a plurality of vent holes 27 may be provided on the concave wall.

[0080] When the outer cylinder 25 forms an inner concave wall, when multiple heat transfer modules abut against each other in sequence, the inner concave wall can be arranged opposite to the inner concave wall of another heat transfer module, or abut against the planar wall of another heat transfer module, so as to facilitate the formation of a cavity, which can serve as a mass transfer channel for the flowing gaseous adsorption working medium 10.

[0081] Alternatively, at least one side wall of the outer cylinder 25 can be an outwardly convex wall circumferentially convex, and multiple vent holes 27 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.

[0082] Compared to convex walls, concave walls can form mass transfer channels with a larger cross-sectional area. Conversely, convex walls, due to their upward bulge, can form larger storage cavities 26, thus providing better storage capacity.

[0083] In some embodiments, the concave wall can be concave in an arc shape or in a square groove.

[0084] In some embodiments, the outer cylinder 25 can be further made into a heat-conducting structure, and the heat-conducting plate 23 can be in heat-conducting contact with the outer cylinder 25, so that heat transfer can also be formed between the heat-conducting plate 23 and the outer cylinder 25. Then the outer cylinder 25 can directly transfer heat with the adsorbent to achieve a better heat transfer effect.

[0085] In some embodiments, the heat pipe 1, the heat plate 23 and the outer cylinder 25 can be constructed as an integral structural component. For example, when forming an integral structural component, the heat pipe 1, the heat plate 23 and the outer cylinder 25 are formed.

[0086] One of the integral components 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 through extrusion, 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-sectional dimensions and shapes of the stretched component are equal; alternatively, it can be the aforementioned base material with a small number of openings or other forms of removal, such as the vent 27 opened on the outer cylinder 25, which can be an opening in the base material of the stretched component. Specifically, the integral component can be made so that at least a section of its structure along the extension direction has a cross-sectional shape and size of equal size.

[0087] Specifically, the heat-conducting pipe 1 and the outer cylinder 25 can both have annular cross-sections; the heat-conducting plate 23 has an elongated cross-section. After forming the matrix of the stretched part by extrusion or other methods, corresponding vent holes 27 are drilled on the outer cylinder 25.

[0088] In some embodiments, multiple concave walls are typically connected sequentially to uniformly form multiple mass transfer channels, thereby improving mass transfer uniformity. Openings are generally formed in the extending direction to introduce or remove the adsorbate.

[0089] Furthermore, multiple concave walls can be connected sequentially to form a ring structure, facilitating the uniform formation of multiple mass transfer channels in the circumferential direction. If each concave wall is connected end-to-end sequentially, and the straight-line distance between its ends is equal, the cross-section of the entire outer cylinder 25 is approximately a regular polygon.

[0090] In some embodiments, the heat-conducting plate 23 can be connected to the junction of adjacent concave walls to avoid forming too many corners, thus facilitating the uniform distribution of adsorbent particles 6. Simultaneously, the corner support allows for better force transmission.

[0091] In some embodiments, the heat-conducting plate 23 may be connected to the circumferential center of the concave wall to form more corner positions, thereby forming better mass transfer channels and better heat transfer contact.

[0092] In some embodiments, the heat-conducting plate 23 may have outwardly extending fins 24 on at least one side to extend into the spaces between the adsorbent particles 6, thereby better transferring heat from the heat-conducting plate 23 to the adsorbent particles 6. By adding fins 24, the heat transfer effect between the heat-conducting plate 23 and the adsorbent particles 6 is improved, and the heat transfer path between the adsorbent particles 6 is reduced.

[0093] Furthermore, multiple fins 24 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 23 are arranged at an angle, and the distance between adjacent heat-conducting plates 23 increases radially. At this point, the fins 24 extend outwards, allowing them to better expand into a larger space, thus better preventing excessively long heat transfer paths between adsorbents and ensuring efficient heat transfer.

[0094] Furthermore, generally speaking, fins 24 can be provided on both sides of the heat-conducting plate 23. The fins 24 are integrally formed and connected with the heat-conducting plate 23, and one end of the fins 24 is connected to the radial center of the heat-conducting plate 23, while the other end of the fins 24 extends radially outward.

[0095] Furthermore, in order to better adsorb and transfer the working fluid, it is preferable to provide multiple rows of vent holes 27 along the circumferential direction of the concave wall. Each row of vent holes 27 can be arranged sequentially along the extension direction of the heat pipe 1. Through the above arrangement, the number of vent holes 27 can be increased. While avoiding excessively large vent hole diameters, the ventilation effect can be better guaranteed by providing a sufficient amount of ventilation air.

[0096] Furthermore, considering that the quality requirements at the corner positions are not high, especially since multiple vent holes 27 can be arranged sequentially along the extension direction of the heat pipe 1, the density of the vent hole groups 27 located in the middle position can be greater than the density of the vent hole groups 27 located on both sides in the circumferential direction. As shown in the attached figure, the density of the vent hole groups 27 in the middle is three times that of the vent hole groups 27 on both sides, and three rows of vent hole groups 27 are provided. Of course, more rows of vent hole groups 27 can also be provided, such as five groups of vent hole groups 27, six groups of vent hole groups 27, etc.

[0097] Furthermore, considering that fins 24 are provided on both sides of the heat-conducting plate 23, in order to form a better distribution, it is preferable that the angle between the heat-conducting plate 23 and the fins 24 on it is smaller than the angle between adjacent heat-conducting plates 23.

[0098] Furthermore, the angle between the heat-conducting plate 23 and the fins 24 on it can be made equal to the angle between adjacent heat-conducting plates 23, so that the fins 24 between adjacent heat-conducting plates 23 can form a better extension and be more evenly distributed.

[0099] In some embodiments, the corner points of the outer contour of the cross-section of the outer cylinder 25 can be sequentially connected to form a regular polygon structure, and adjacent corner points are connected by a concave curved structure to form a concave wall, so that mass transfer channels are uniformly formed around the perimeter and the stress is more uniform. That is, the cross-section of the outer cylinder 25 is generally a regular polygon structure, but the edges that make up the regular polygon structure are no longer straight lines, but may be curved, which can be considered as an approximate regular polygon structure. The specific regular polygon structure can be an equilateral triangle structure, a regular quadrilateral structure, a regular pentagon structure, a regular hexagon structure, etc.

[0100] Specifically, the outer cylinder 25 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.

[0101] In some embodiments, the outer cylinder 25 can have a regular hexagonal cross-section to allow multiple heat transfer modules to be arrayed. As shown in the attached figures, seven heat transfer modules can be combined to form an approximately cylindrical structure, which can be placed in a mating cylindrical cavity. One heat transfer module is located in the middle, while the other six heat transfer modules are closely arranged around the middle heat transfer module with their sides aligned. In this case, each side of the middle heat transfer module forms a mass transfer channel with the corresponding side of the external heat transfer module on the corresponding side. Mass transfer channels can also be formed between the corresponding sides of adjacent external heat transfer modules. At the same time, mass transfer channels are also formed between the external heat transfer modules and the cavity wall of the cylindrical cavity. Meanwhile, the corners of each heat transfer module form abutment support, and the external heat transfer modules can abut against the cavity wall of the cylindrical cavity, making the overall structure more compact and mutually supportive, thus providing a very good support effect.

[0102] In some embodiments, further considering that the outer cylinder 25 can also conduct heat and the outer wall of the outer cylinder 25 can still transfer heat, in order to improve heat transfer, an adsorbent layer 5 can be attached to the outer wall of the outer cylinder 25 of the heat transfer module, forming an opening that avoids the vent hole 27 of the outer cylinder 25. Of course, the thickness of the adsorbent layer 5 should be controlled to avoid blocking the mass transfer channel.

[0103] 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.

[0104] 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. An adsorption bed, comprising an adsorbent, an adsorption chamber (7), and a communicating channel (8) extending into the adsorption chamber (7), wherein the adsorption chamber (7) has a working fluid inlet (9) for the flow of a gaseous adsorbent (10), characterized in that, It also includes multiple heat transfer modules located in the adsorption chamber (7). Each heat transfer module includes a heat-conducting pipe (1) and a heat-conducting support device (2) arranged around the heat-conducting pipe (1) and fixedly connected to and in thermal contact with the heat-conducting pipe (1). The heat-conducting pipe (1) is connected to the communication channel (8). The heat-conducting support device (2) carries the adsorbent, and the adsorbent is located in the cavity of the adsorption chamber (7) that is connected to the working fluid inlet (9).

2. The adsorption bed according to claim 1, characterized in that, The heat pipe (1) and the heat-conducting support device (2) are integrally connected.

3. The adsorption bed according to claim 2, characterized in that, The heat transfer module is a stretched member formed by extending along the extension direction of the heat pipe (1).

4. The adsorption bed according to claim 3, characterized in that, Multiple heat transfer modules are arranged side by side along a preset direction, and the extension direction of the heat pipe (1) is perpendicular to the preset direction.

5. The adsorption bed according to claim 4, characterized in that, Each heat transfer module is fixedly connected to form a heat transfer module (28). The adsorption chamber (7) is provided with a connecting channel (8) at both ends along the extension direction of the heat pipe (1) to serve as an inlet channel and an outlet channel, respectively. Each heat pipe (1) of the heat transfer module (28) is connected in series through a connecting pipe and connected between the inlet channel and the outlet channel. The adsorption chamber (7) has annularly distributed shoulders (34) on its cavity wall to support the outer periphery of the heat transfer module (28).

6. The adsorption bed according to claim 5, characterized in that, It also includes a cylindrical shell (31) and a first cover plate (32) and a second cover plate (33) located at both ends of the cylindrical shell (31) to enclose and form the adsorption chamber (7). The inner wall of the lower end of the cylindrical shell (31) is provided with the shoulder (34).

7. The adsorption bed according to any one of claims 1-6, characterized in that, The heat-conducting support device (2) includes a plurality of tree-shaped heat-conducting structures evenly arranged around the heat-conducting pipe (1). The root of the tree-shaped heat-conducting structure is connected to the pipe wall of the heat-conducting pipe (1) and heat-conductingly connected, and the top extends away from the pipe wall. The adsorbent is an adsorbent layer (5), and the surface of the tree-shaped thermally conductive structure is covered with the adsorbent layer (5). The surface of the adsorbent layer (5) forms a mass transfer cavity that communicates with the working fluid inlet (9).

8. The adsorption bed according to claim 7, characterized in that, The tree-shaped heat-conducting structure includes: Rib group (22), with a forked cross-section; The main rib (21) has a long strip-shaped cross section and extends radially. The first end of the main rib (21) is fixedly connected to the wall of the heat-conducting pipe (1) and makes thermal contact. The two rib groups (22) are respectively arranged on both sides of the thickness direction of the main rib (21).

9. The adsorption bed according to claim 8, characterized in that, The rib assembly (22) includes: In cross-section, the branch-shaped rib (221) has a first end connected to the middle of the radial extension direction of the main rib (21), and a second end extending radially outward away from the main rib (21). In cross-section, the outer rib portion has a first end connected to the branch-shaped rib (221) and a second end extending away from the main rib (21); The inner rib portion (222) has a first end connected to the branch-shaped rib (221) in cross-section, and a second end extending toward the main rib (21).

10. The adsorption bed according to any one of claims 1-6, characterized in that, The thermally conductive support device (2) includes: The outer cylinder (25) is sleeved on the outside of the heat-conducting pipe (1) to form a storage cavity (26) for placing the adsorbent between the outer cylinder (25) and the heat-conducting pipe (1). The outer cylinder (25) is provided with a vent hole (27) that runs through the inside and outside. A heat-conducting plate (23) is arranged with its thickness direction perpendicular to the extension direction of the heat-conducting pipe (1). One side edge of the heat-conducting plate (23) 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 (25).

11. The adsorption bed according to claim 10, characterized in that, At least one side wall of the outer cylinder (25) is a concave wall that is recessed in the circumferential direction, and a plurality of ventilation holes (27) are provided on the concave wall; the plurality of concave walls are connected in sequence to form an annular structure, and the heat-conducting plate (23) is connected to the junction of adjacent concave walls; at least one side of the heat-conducting plate (23) is provided with fins (24), one end of the fins (24) is connected to the center of the heat-conducting plate (23) in the radial direction, and the other end extends radially outward.

12. The adsorption bed according to claim 11, characterized in that, The corner points of the outer contour of the outer cylinder (25) can be connected in sequence to form a regular hexagon, and adjacent corner points are connected by an inwardly concave arc structure to form the concave wall. At least three heat transfer modules are arranged in a ring and are close together in sequence so that a mass transfer channel is formed between the concave walls of adjacent heat transfer modules.

13. The adsorption bed according to claim 12, characterized in that, At least a portion of the adsorbent is an adsorbent layer (5) to adhere to the outer wall of the outer cylinder (25) of the heat transfer module and form an opening that avoids the vent hole (27).

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