Quickly-assembled modular adsorption tower structure and molecular sieve oxygen generation system

Abstract

The utility model discloses a kind of fast installation module formula adsorption tower structure and molecular sieve oxygen production system, it belongs to molecular sieve oxygen production equipment technical field.The utility model adsorption tower structure includes adsorption tower module and the gas conveying mechanism being connected with adsorption tower module, adsorption tower module includes several intercommunication adsorption towers, still includes connecting frame, adsorption tower module is set on connecting frame, gas passage is connected on connecting frame, gas conveying mechanism includes the gas passage being set on connecting frame, gas passage is communicated with adsorption tower module.The utility model is by the module formula adsorption tower structure of several intercommunication adsorption towers, not only adsorption tower dismounting, replacement is more simple and convenient, and adsorption tower module is set on connecting frame, connecting frame is equipped with gas passage, so that connecting frame not only plays the supporting role of connection, fixed adsorption tower, also integrated the passage structure of gas flow, structure height integration, simplifies device overall structure, saves space.

Description

Technical Field

[0001] This utility model belongs to the technical field of molecular sieve oxygen generation equipment, and more specifically, it relates to a quick-installation modular adsorption tower structure and a molecular sieve oxygen generation system. Background Technology

[0002] In a molecular sieve oxygen generator, the adsorption tower is a pressure-resistant container filled with zeolite molecular sieves (ZMS, such as type 13X or lithium-based molecular sieves). Using pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA) technology, it selectively adsorbs impurities such as nitrogen and carbon dioxide from compressed air, thereby separating high-concentration oxygen (93% ± 3%). The adsorption tower is an essential component in a VPSA molecular sieve oxygen generator system. It needs to be filled with zeolite molecular sieves and completely sealed after filling, with only openings at the top and bottom covers for air circulation via connecting pipes and valves. Typically, air enters from the bottom of the adsorption tower, and after the molecular sieves adsorb nitrogen, carbon dioxide, and other impurities, the remaining oxygen and other gases are discharged from the top.

[0003] Currently, oxygen production systems are typically connected to large adsorption towers via rotary valves. The inlet and outlet of the adsorption tower are usually through openings in the side wall of the tower's cylindrical section, which are then connected to the rotary valve via pipelines. This pipeline connection is cumbersome, the layout is chaotic, and it occupies a significant amount of space in the train carriage. If the adsorption tower is designed with inlet and outlet at both ends, space needs to be reserved for disassembly for future maintenance and replacement. This would restrict the vertical direction and occupy a large amount of space in the train carriage. Moreover, maintenance and repair are severely limited in the confined space of a high-speed train carriage, making it impossible to perform replacements quickly and manually. If a malfunction occurs, it would affect train operation and railway scheduling. Utility Model Content

[0004] This application addresses the technical problems existing in the prior art by providing a quick-installation modular adsorption tower structure and a molecular sieve oxygen generation system.

[0005] To solve the above-mentioned technical problems, this utility model first provides a quick-installation modular adsorption tower structure, including an adsorption tower module and a gas delivery mechanism connected to the adsorption tower module. The adsorption tower module includes several interconnected adsorption towers and a connecting frame. The adsorption tower module is disposed on the connecting frame, and a gas channel is connected to the connecting frame. The gas delivery mechanism includes a gas channel disposed on the connecting frame, and the gas channel is connected to the adsorption tower module.

[0006] Preferably, the adsorption tower module includes several adsorption towers that are separated from each other and set up independently. The adsorption towers are interconnected by a connecting frame and are vertically set on the connecting frame.

[0007] Preferably, the adsorption tower includes an adsorption tower body, an adsorption space is provided inside the adsorption tower body, and an adsorption tower upper cover and an adsorption tower lower cover are connected to the adsorption tower body. Both the adsorption tower upper cover and the adsorption tower lower cover are provided with vents facing the same direction. The adsorption tower is connected to the connecting frame through the vents.

[0008] Preferably, an adsorption tower lining connector and a sealing component are provided between the top cover of the adsorption tower and the adsorption tower body.

[0009] Preferably, the adsorption tower includes an upper adsorption tower and a lower adsorption tower. The ends of both the upper and lower adsorption towers are connected to a connecting frame. The gas channel is provided with an inlet and an outlet. The inlet and outlet are located on the inner side connected to the adsorption tower and are respectively connected to the inlet and outlet of the adsorption tower.

[0010] Preferably, the connecting frame includes several horizontal profiles and vertical profiles, with the horizontal and vertical profiles being cross-connected, and the gas channel being located within the horizontal profiles.

[0011] Preferably, the horizontal profile is arranged perpendicular to the adsorption tower, and the inner side of the horizontal profile is provided with an air inlet and an air outlet connected to the adsorption tower. The gas channel is a gas pipeline arranged inside the profile along its axial direction.

[0012] Preferably, the horizontal profile is a square tube support structure with hollow channels inside, and the horizontal and vertical profiles are provided with matching connection structures. The vertical profile is a T-shaped column support structure, and the adsorption tower has a circular cross-section.

[0013] Preferably, a number of horizontal profiles are evenly distributed and parallel to each other, and a number of vertical profiles are evenly distributed and parallel to each other. The spacing between two adjacent horizontal profiles is adapted to the axial length of the adsorption tower, and the two ends of the vertical profiles are connected to sealing covers.

[0014] Preferably, the gas channel includes a connecting pipe and a connecting valve block. The connecting valve block has an independent passage inside. The first end of the connecting pipe is connected to the adsorption tower module, and the second end of the connecting pipe is connected to the connecting valve block. The gas is transported through the connecting pipe and the connecting valve block.

[0015] Furthermore, this utility model also provides a molecular sieve oxygen generation system, including a rotary valve and multiple of the above-mentioned quick-installation modular adsorption tower structures. The adsorption tower structures are connected to the rotary valve, and the gas from the rotary valve enters the adsorption tower through the connecting frame. The connecting frames of adjacent adsorption tower structures are either an integrated structure or a separate fixed structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model embodiment adopts a modular adsorption tower structure composed of several interconnected adsorption towers. Not only is it easier to disassemble and replace the adsorption towers, but the adsorption tower modules are also set on the connecting frame, which has gas channels. Thus, the connecting frame not only serves to connect and fix the adsorption towers, but also integrates the gas flow channel structure. The highly integrated structure simplifies the overall structure of the device, saves on the laying of dedicated delivery pipelines, and saves space. The gas can directly form a flow loop with the inlet and outlet of the adsorption tower through the channels in the connecting frame. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the modular adsorption tower structure according to Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the connecting frame in Embodiment 1 of this utility model; Figure 3 This is a three-dimensional structural diagram of the adsorption tower according to Embodiment 1 of this utility model; Figure 4 This is an axial sectional view of the adsorption tower according to Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the connection structure between the upper adsorption tower and the lower adsorption tower in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the structure of the transverse profile in Embodiment 1 of this utility model; Figure 7 This is a three-dimensional structural diagram of the modular adsorption tower structure in Embodiment 2 of this utility model.

[0019] Explanation of symbols in the diagram: 1. Adsorption tower; 101. Upper adsorption tower; 102. Lower adsorption tower; 11. Adsorption tower body; 12. Adsorption tower top cover; 13. Adsorption tower bottom cover; 14. Vent hole; 15. Adsorption tower inner lining upper hoop; 16. O-ring seal; 2. Gas conveying mechanism; 3. Connecting frame; 31. Horizontal profile; 32. Vertical profile; 33. Top cover plate; 34. Bottom cover plate; 4. Gas passage; 41. Inlet; 42. Outlet; 5. Connecting pipeline; 6. Connecting valve block. Detailed Implementation

[0020] To make the technical problems, solutions, and beneficial effects of this application clearer, the following detailed description, in conjunction with the accompanying drawings and embodiments, provides a fast-installation modular adsorption tower structure and a molecular sieve oxygen generation system provided by this application. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Example 1 Please see Figure 1 , Figure 2 This embodiment provides a quick-installation modular adsorption tower structure, which includes an adsorption tower module and a gas delivery mechanism 2 connected to the adsorption tower module. The adsorption tower module includes a plurality of interconnected adsorption towers 1 and a connecting frame 3. The adsorption tower module is disposed on the connecting frame 3, and a gas channel 4 is connected to the connecting frame 3. The gas delivery mechanism 2 includes a gas channel 4 disposed on the connecting frame 3, and the gas channel 4 is connected to the adsorption tower module.

[0022] This utility model embodiment adopts a modular adsorption tower structure composed of several interconnected adsorption towers 1. Not only is the disassembly and replacement of the adsorption towers easier, but the adsorption tower modules are also set on the connecting frame 3. The connecting frame 3 is provided with gas channels 4. Thus, the connecting frame 3 not only plays a supporting role in connecting and fixing the adsorption towers 1, but also integrates the gas flow channel structure. The integrated structure simplifies the overall structure of the device, saves the laying of dedicated delivery pipelines, and saves space. The gas can directly form a flow loop with the inlet and outlet of the adsorption tower through the channel in the connecting frame.

[0023] In this embodiment, the adsorption tower module includes several adsorption towers 1 that are separated from each other and set up independently. The adsorption towers 1 are interconnected through a connecting frame 3 and the adsorption towers 1 are set up vertically on the connecting frame 3.

[0024] Specifically, such as Figure 3 , Figure 4 As shown, each adsorption tower 1 includes an adsorption tower body 11, which contains an adsorption space and a molecular sieve adsorption support structure. The upper and lower ends of the adsorption tower body 11 are respectively connected to an adsorption tower upper cover 12 and an adsorption tower lower cover 13. Both the adsorption tower upper cover 12 and the adsorption tower lower cover 13 are provided with vent holes 14. The adsorption tower body 11 is connected to the gas channel 4 of the connecting frame 3 through the vent holes 14 provided on its upper and lower covers. The adsorption tower 1 is connected to the connecting frame 3 through the adsorption tower upper cover 12 and the adsorption tower lower cover 13.

[0025] In this embodiment, the vent holes 14 on the upper cover 12 and lower cover 13 of the adsorption tower face the same direction, both facing the side connected to the connecting frame 3. A stable gas flow is achieved through a sealed connection with the connecting frame 3. The vent hole 14 of the lower cover 13 is the gas inlet of the adsorption tower, and the vent hole 14 of the upper cover 12 is the gas outlet. Gas entering the gas channel 4 of the connecting frame 3 enters the adsorption tower 1 through the lower cover 13 and then flows out through the vent hole 14 of the upper cover 12.

[0026] In this embodiment, the internal structure of the adsorption tower body 11 is based on conventional technology, and its structure and the specific working principle of the adsorption tower will not be described in detail here.

[0027] Furthermore, such as Figure 4 As shown, an adsorption tower lining connector and a sealing element are provided between the adsorption tower top cover 12 and the adsorption tower body 11. The adsorption tower lining connector is the adsorption tower lining upper hoop 15, and the sealing element is the O-ring seal 16. When installing the adsorption tower 1, firstly, the adsorption tower bottom cover 13 is welded and fixed to the adsorption tower body 11 and the adsorption tower lining upper hoop 15. Then, after the adsorption tower 1 is filled, the adsorption tower top cover 12 is connected to the adsorption tower lining upper hoop 15 and sealed with the O-ring seal 16. The pre-drilled threaded holes and connectors are used for fixing.

[0028] Furthermore, the adsorption tower body 11 has a circular cross-section. The upper cover 12 and the lower cover 13 of the adsorption tower are both provided with a circular cylindrical connecting end that connects to the adsorption tower body 11 and a fixed end that connects to the connecting frame 3. The fixed end is set perpendicular to the cylindrical connecting end.

[0029] Specifically, in this embodiment, the original single large adsorption tower of the system is split and replaced with five small adsorption towers. The five small adsorption towers are evenly connected side by side on the connecting frame 3. The adsorption tower 1 is set vertically and adjacent adsorption towers 1 are set parallel to each other. After splitting, the weight and volume of the adsorption towers are reduced, making it easier to maintain and replace manually. This changes the problem of complex maintenance and difficult replacement of the previous large structure. With the new structure, a single person can complete the replacement, making the operation convenient. Moreover, the openings on the inner side of the connecting frame 3 are connected to the vent holes 14 on the sides of the upper and lower covers of the adsorption tower 1, saving pipelines, saving space, and saving height space in the carriage.

[0030] Furthermore, such as Figure 1 As shown, the adsorption tower 1 connected to the connecting frame 3 includes an upper adsorption tower 101 and a lower adsorption tower 102. The ends of the upper adsorption tower 101 and the lower adsorption tower 102 are both connected to the connecting frame 3. The upper adsorption tower 101 and the lower adsorption tower 102 are arranged opposite to each other at the upper and lower parts of the connecting frame 3.

[0031] Specifically, such as Figure 2 , Figure 5 As shown, the connecting frame 3 is fixedly connected to the carriage. The inlet and outlet of the gas channel 4 of the connecting frame 3 are then connected to the adsorption tower 1. The upper and lower adsorption tower bodies are respectively located at the upper and lower parts of the connection. The lower cover of the upper adsorption tower 101 and the upper cover of the lower adsorption tower 102 are connected to the air holes opened on the connecting frame 3 for ventilation. The gas channel 4 is equipped with an inlet 41 and an outlet 42, both located on the inner side of the connecting frame 3 where it connects to the adsorption tower 1. The inlet 41 and outlet 42 are connected to the inlet and outlet of the adsorption tower 1, respectively. This embodiment, by adopting a side-sealed connection, not only saves space but also enables rapid disassembly and replacement.

[0032] In this embodiment, as Figure 2 As shown, the connecting frame 3 includes several horizontal profiles 31 and vertical profiles 32. The horizontal profiles 31 and vertical profiles 32 are connected in a cross manner, and the gas channel 4 is located in the horizontal profiles 31.

[0033] Specifically, several horizontal profiles 31 are evenly distributed and parallel to each other, and several vertical profiles 32 are evenly distributed and parallel to each other. The horizontal profiles 31 and vertical profiles 32 are perpendicular to each other. The spacing between two adjacent horizontal profiles 31 is adapted to the axial length of the adsorption tower 1. In the vertical direction, the upper and lower adsorption towers are arranged between two adjacent horizontal profiles 31, and the two ends of the adsorption tower 1 are sealed to the horizontal profiles 31. The multiple horizontal profiles 31 are respectively connected to the upper, middle and lower parts of the vertical profiles 32 to realize the stable support of the adsorption tower 1 by the connecting frame 3.

[0034] like Figure 2 , Figure 6 As shown, three horizontal profiles 31 are arranged horizontally and are evenly spaced at the top, middle, and bottom of the vertical profiles 32. Four vertical profiles 32 are arranged vertically, with their top, middle, and bottom parts intersecting and connecting with the three horizontal profiles 31, respectively. The horizontal profiles 31 are hollow square tube support structures, and multiple hollow channels can be set inside them according to usage requirements. The vertical profiles 32 are T-shaped column support structures, and the inner side of the horizontal profiles 31 is provided with gas channel inlets and outlets. The inlets and outlets are respectively the air inlet 41 and the air outlet 42 connected to the upper and lower covers of the adsorption tower 1. The size of the air inlet 41 is larger than the size of the air outlet 42.

[0035] In this embodiment, since the lower horizontal profile 31 is connected to the lower cover of the lower adsorption tower 102, the middle horizontal profile 31 is connected to the upper cover of the lower adsorption tower 102 and the lower cover of the upper adsorption tower 101, and the upper horizontal profile 31 is connected to the upper cover of the upper adsorption tower 101, the lower horizontal profile 31 is provided with an air inlet 41, the middle horizontal profile 31 is provided with an air inlet 41 and an air outlet 42 arranged adjacent to each other, and the upper horizontal profile 31 is provided with an air outlet 42.

[0036] like Figure 6 As shown, the horizontal profile 31 is provided with connecting grooves that match and connect with the vertical profile 32. There are four connecting grooves, and the size of the connecting grooves is adapted to the width of the vertical profile 32. The gas channel 4 provided on the horizontal profile 31 is a gas pipeline arranged axially inside the profile, and the gas pipeline connects the rotary valve and the adsorption tower 1. In this embodiment, the profile of the connecting frame 3 is used as a gas pipeline to connect the adsorption tower 1 and the rotary valve, which not only reduces the pipeline layout but also saves space. Furthermore, the vent hole 14 is set on the end side of the connecting frame 3 and the adsorption tower 1. By sealing the end side of the adsorption tower 1 with the side of the connecting frame 3, the space requirements of the carriage are met, the height of the adsorption tower is reduced as much as possible, further saving space, and it is also easy to disassemble and replace.

[0037] Furthermore, in this embodiment, both ends of the vertical profile 32 are connected to sealing cover plates, the upper end of the vertical profile 32 is fixedly connected to an upper cover plate 33, the lower end of the vertical profile 32 is fixedly connected to a lower cover plate 34, and the horizontal profile 31, the vertical profile 32 and each adsorption tower structure are all arranged in the space between the upper cover plate 33 and the lower cover plate 34.

[0038] Furthermore, since the space occupied by the upper and lower cover plates is the largest dimension inside the carriage, the entire unit can be hoisted into the carriage for assembly after the adsorption tower is assembled.

[0039] Furthermore, as a preferred embodiment of this utility model, the number of adsorption towers specifically set in the adsorption tower module can be adapted to the actual working conditions and scenario requirements. The specific number and shape of the horizontal profiles 31 and vertical profiles 32 set on the connecting frame 3 can be adapted and adjusted according to the specific usage requirements of the adsorption tower 1 and its actual number.

[0040] Example 2 like Figure 7As shown, this embodiment provides a quick-installation modular adsorption tower structure, which includes an adsorption tower module and a gas delivery mechanism connected to the adsorption tower module. The adsorption tower module includes several interconnected adsorption towers 1 and a connecting frame 3. The adsorption tower module is disposed on the connecting frame 3, and a gas channel 4 is connected to the connecting frame 3. The gas delivery mechanism includes a gas channel 4 disposed on the connecting frame 3, and the gas channel 4 is connected to the adsorption tower module.

[0041] Specifically, the gas channel 4 includes a connecting pipe 5 and a connecting valve block 6. The connecting valve block 6 has an independent passage inside. The first end of the connecting pipe 5 is connected to the adsorption tower module, and the second end of the connecting pipe 5 is connected to the connecting valve block 6. The gas is transported through the connecting pipe 5 and the connecting valve block 6.

[0042] In this embodiment, the connecting valve block 6 is used as a gas passage and connected to the connecting pipeline 5 to connect the adsorption tower module and the system's rotary valve module. One end of the connecting valve block 6 is connected to the connecting pipeline 5, and the other end is connected to the valve seat of the rotary valve module through a flange, which is convenient to operate.

[0043] Furthermore, as a preferred embodiment, the gas channel 4 can be configured using a flexible delivery hose, rigid delivery pipe, pipe joint, or profile channel for gas delivery. It can use a single structure or a combination of structures as the carrier of the gas delivery mechanism, which is flexible and can adapt to the installation requirements of different scenarios. Moreover, the specific configuration of the gas channel of the gas delivery mechanism (such as direction, aperture, layout, etc.) can be adapted and adjusted according to actual working conditions (such as gas delivery volume, space constraints, pressure requirements, etc.) to achieve stable delivery of gas to the oxygen generation system.

[0044] Furthermore, for any aspects not explicitly stated in this embodiment, the structure described in Embodiment 1 may be adopted, or adjustments may be made according to the actual usage scenario and requirements. The specific structure and setting of the gas delivery mechanism may be adjusted, or conventional technical means in the field may be used for setting, which will not be elaborated here.

[0045] Example 3 Furthermore, this utility model also provides a molecular sieve oxygen generation system, including a rotary valve, and also includes multiple quick-install modular adsorption tower structures of the above-described embodiment 1 or embodiment 2. The adsorption tower structure is connected to the rotary valve, and the gas from the rotary valve enters the adsorption tower 1 through the connecting frame 3 or the gas channel.

[0046] In this embodiment, the molecular sieve oxygen generation system is applied in the space of a high-speed train carriage. The original large tower weighing about 50 kg is divided into five small towers weighing about 10 kg each, which can be easily disassembled and maintained by a single person. Moreover, the gas from the rotary valve enters the adsorption tower through the connecting frame. The connecting frame serves as the pipeline connecting the rotary valve and the adsorption tower, saving space and reducing weight. The lateral connection and sealing structure saves space in the height direction of the carriage and improves the vertical net utilization space inside the carriage.

[0047] Furthermore, when the gas enters adsorption tower 1, it is necessary to ensure that the five small towers have the same pressure and flow rate, so as to keep the molecular sieve adsorption and desorption of the five small adsorption towers from occurring synchronously.

[0048] Furthermore, in this embodiment, the connecting frame of the adjacent adsorption tower structure can be an integrated frame profile structure as shown in the figure. Alternatively, a split fixed connection structure can be adopted according to actual installation and usage requirements. The specific setting form, quantity, and number of small adsorption towers of the connecting frame can be adapted and adjusted as needed.

[0049] Furthermore, the modular adsorption tower structure provided by this utility model is applicable to molecular sieve oxygen generation systems used in high-speed rail carriages at altitudes of 3000-4500 meters and above. This application overcomes the space limitations of the carriage, adopting an overall equipment volume that is only 1 / 2 that of conventional oxygen generation equipment. The independent "large" tower connected to the rotary valve is divided into multiple small towers, and the total weight of molecular sieves filled in the multiple small towers is equal to the weight of a single "large" tower, which facilitates later maintenance, repair, and replacement. Replacement can be performed by a single person, making operation convenient. Moreover, the connecting frame serves as both a support structure for the adsorption tower and a delivery pipeline. The connecting frame acts as a bridge connecting the adsorption tower and the rotary valve, saving space and reducing pipeline layout. Finally, the side of the adsorption tower end cap is connected to the connecting frame, and ventilation holes are opened at the connection points of the profiles. Gas is dispersed from the rotary valve through the connecting frame to each small tower, reducing the height of the adsorption tower, saving carriage height space, and facilitating disassembly and replacement.

[0050] This utility model provides a side-sealed quick-installation modular adsorption tower structure and a molecular sieve oxygen generation system. It adopts a modular adsorption tower structure composed of several interconnected adsorption towers 1. Not only is the disassembly and replacement of the adsorption towers easier, but the adsorption tower modules are also set on the connecting frame 3. The connecting frame 3 is provided with gas channels 4. Thus, the connecting frame 3 not only serves to connect and fix the adsorption towers 1, but also integrates the gas flow channel structure. The integrated structure simplifies the overall structure of the device, saves the laying of dedicated delivery pipelines, and saves space. The gas can directly form a flow loop with the inlet and outlet of the adsorption tower through the channel in the connecting frame.

[0051] In the description of this utility model, it should be understood that terms such as “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, in the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-assembly modular adsorption tower structure, comprising an adsorption tower module and a gas delivery mechanism connected to the adsorption tower module, characterized in that: The adsorption tower module includes several interconnected adsorption towers and a connecting frame. The adsorption tower module is disposed on the connecting frame, and a gas channel is connected to the connecting frame. The gas conveying mechanism includes a gas channel disposed on the connecting frame, and the gas channel is connected to the adsorption tower module.

2. The quick-assembly modular adsorption tower structure according to claim 1, characterized in that, The adsorption tower module includes several adsorption towers that are separated from each other and set up independently. The adsorption towers are interconnected through the connecting frame, and the adsorption towers are vertically set on the connecting frame.

3. The quick-assembly modular adsorption tower structure according to claim 2, characterized in that, The adsorption tower includes an adsorption tower body with an adsorption space inside. The adsorption tower body is connected to an adsorption tower top cover and an adsorption tower bottom cover. Both the adsorption tower top cover and the adsorption tower bottom cover have ventilation holes facing the same direction. The adsorption tower is connected to the connecting frame through the ventilation holes.

4. The quick-assembly modular adsorption tower structure according to claim 2, characterized in that, The adsorption tower includes an upper adsorption tower and a lower adsorption tower. The ends of the upper adsorption tower and the lower adsorption tower are connected to the connecting frame. The gas channel is provided with an inlet and an outlet. The inlet and outlet are located on the inner side connected to the adsorption tower and are respectively connected to the inlet and outlet of the adsorption tower.

5. The quick-assembly modular adsorption tower structure according to claim 1, characterized in that, The connecting frame includes several horizontal profiles and vertical profiles, which are cross-connected to each other, and the gas channel is located within the horizontal profiles.

6. The quick-assembly modular adsorption tower structure according to claim 5, characterized in that, The transverse profile is arranged perpendicular to the adsorption tower. The inner side of the transverse profile is provided with an air inlet and an air outlet connected to the adsorption tower. The gas channel is a gas pipeline arranged inside the profile along its axial direction.

7. The quick-assembly modular adsorption tower structure according to claim 5, characterized in that, The horizontal profile is a square tube support structure with a hollow channel inside. The horizontal and vertical profiles are provided with matching and connected structures. The vertical profile is a T-shaped column support structure. The adsorption tower has a circular cross-section.

8. The quick-assembly modular adsorption tower structure according to claim 5, characterized in that, Several horizontal profiles are evenly distributed and parallel to each other, and several vertical profiles are evenly distributed and parallel to each other. The spacing between two adjacent horizontal profiles is adapted to the axial length of the adsorption tower. Both ends of the vertical profiles are connected to sealing covers.

9. The quick-assembly modular adsorption tower structure according to claim 1, characterized in that, The gas channel includes a connecting pipe and a connecting valve block. The connecting valve block has an independent passage inside. The first end of the connecting pipe is connected to the adsorption tower module, and the second end of the connecting pipe is connected to the connecting valve block. Gas is transported through the connecting pipe and the connecting valve block.

10. A molecular sieve oxygen generation system, comprising a rotary valve, characterized in that, It also includes multiple quick-installation modular adsorption tower structures as described in any one of claims 1-9, wherein the adsorption tower structure is connected to the rotary valve, and the gas from the rotary valve enters the adsorption tower through the connecting frame or gas channel, and the connecting frame provided for adjacent adsorption tower structures is an integral structure or a separate fixed structure.

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