Optimization device for pressure equalizing tank of VPSA (Vacuum Pressure Swing Adsorption) oxygen production equipment

Abstract

The embodiment of the utility model provides a pressure equalizing tank optimizing device for VPSA oxygen production equipment. The pressure equalizing tank optimizing device comprises a pressure equalizing tank; wherein an air outlet is formed in the top of the pressure equalizing tank, and an air inlet is formed in the bottom of the pressure equalizing tank; the airflow guide blade is arranged on the inner wall of the pressure equalizing tank and is used for guiding airflow to flow; wherein the air flow guide blades are arranged in a spiral shape, and each air flow guide blade is provided with an inclined angle and a smooth surface; the pressure equalizing plate is arranged in the pressure equalizing tank and is used for balancing the air pressure of each part in the tank; wherein the pressure equalizing plate is provided with a plurality of groups of vent holes, the apertures of the plurality of groups of vent holes are gradually increased from the center to the edge, and a gradual change type structural design is adopted; the flow guide pipe is connected with the air inlet and the air outlet; protruding drainage lines are arranged on the inner wall of the flow guide pipe, so that smooth flowing of air flow is facilitated, and resistance is reduced. Through the scheme of the embodiment of the invention, vortex and turbulence phenomena can be reduced, and the gas exchange efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of air separation technology, specifically to an optimization device for the equalization tank of a VPSA oxygen generator. Background Technology

[0002] An optimized pressure equalization tank device for VPSA oxygen generators is an improved design of the pressure equalization tank, a key component in the pressure swing adsorption (PSA) oxygen generation process, aiming to enhance the stability and efficiency of the gas exchange process. In actual operation, such devices present certain technical challenges, such as reducing the impact of eddies and turbulence on gas flow. These adverse fluid dynamic phenomena not only increase energy loss but may also interfere with the uniform exchange of gas molecules, thereby reducing the overall gas separation and purification efficiency of the equipment. This issue has a direct and significant impact on the equipment's operational performance and economic benefits. Summary of the Invention

[0003] In view of this, the present disclosure provides an optimization device for the pressure equalization tank of a VPSA oxygen generator, which at least partially solves the problems existing in the prior art.

[0004] This application discloses an optimization device for the pressure equalization tank of a VPSA oxygen generator, comprising:

[0005] A pressure equalization tank; wherein, the pressure equalization tank is provided with an air outlet at the top and an air inlet at the bottom;

[0006] Airflow guide vanes are disposed on the inner wall of the equalizing tank to guide airflow; wherein the airflow guide vanes are arranged in a spiral shape and have an inclined angle and a smooth surface;

[0007] A pressure equalizing plate is installed inside the pressure equalizing tank to balance the air pressure in different parts of the tank; wherein, the pressure equalizing plate is provided with multiple sets of vent holes, the diameter of which gradually increases from the center to the edge, and adopts a gradient structure design;

[0008] A guide tube is connected to the air inlet and the air outlet; wherein, the inner wall of the guide tube is provided with raised drainage patterns, which helps the airflow to flow smoothly and reduce resistance;

[0009] A flow stabilizer is located inside the equalizing tank near the air inlet to assist in adjusting the flow direction of the incoming gas; wherein, the flow stabilizer is arranged in a mesh pattern, possesses flexibility, and can adjust its shape according to changes in airflow; wherein

[0010] The pressure equalizing plate runs through all airflow channels and is connected to the guide pipe; the flow stabilizer is fixed to the front end of the guide pipe.

[0011] According to one embodiment, the helical angle of the airflow guide vane can be adjusted within the range of 30° to 60° to adapt to the needs of different airflow speeds and directions.

[0012] According to one embodiment, the surface of the airflow guide vane is coated with a wear-resistant coating to increase service life and reduce frictional resistance.

[0013] According to one embodiment, an elastic support plate is provided between the airflow guide vanes to prevent the vanes from deforming or misaligning due to external forces.

[0014] According to one embodiment, a sealing ring is provided between the air inlet, the air outlet and the guide pipe to prevent airflow from leaking out of the gap.

[0015] According to one embodiment, the guide pipe adopts a gradually tapered bend design to reduce energy loss caused by right-angle turns.

[0016] According to one embodiment, the cross-section of the drainage pattern is a semi-circular or wavy structure to enhance the drainage effect and reduce frictional resistance.

[0017] According to one embodiment, the flow stabilizer has flow-aiding protrusions at its grid nodes to adjust the gas flow direction and enhance the diffusion effect.

[0018] This disclosure provides an optimization device for the equalizing tank of a VPSA oxygen generator, comprising: an equalizing tank; wherein the equalizing tank has an air outlet at the top and an air inlet at the bottom; airflow guide vanes disposed on the inner wall of the equalizing tank for guiding airflow; wherein the airflow guide vanes are arranged in a spiral shape and have an inclined angle and a smooth surface; an equalizing plate disposed inside the equalizing tank for balancing the air pressure in different parts of the tank; wherein the equalizing plate has multiple sets of vent holes, the diameter of which is arranged from the center... The flow distribution system gradually increases in size towards the edges and employs a gradient structural design. A flow guide tube connects to both the air inlet and outlet. The inner wall of the flow guide tube has raised drainage patterns to facilitate smooth airflow and reduce resistance. A flow stabilizer is located inside the equalizing tank near the air inlet to assist in adjusting the direction of the incoming gas flow. The flow stabilizer has a mesh-like distribution and is flexible, allowing it to adjust its shape according to airflow changes. The equalizing plate penetrates all airflow channels and connects to the flow guide tube. The flow stabilizer is fixed to the front end of the flow guide tube. This embodiment of the present disclosure addresses how to reduce eddies and turbulence, thereby improving gas exchange efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the pressure equalization tank optimization device for VPSA oxygen generator described in this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the equalizing tank in the VPSA oxygen generator equalizing tank optimization device described in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the guide pipe in the pressure equalization tank optimization device of the VPSA oxygen generator described in this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the flow stabilizer in the pressure equalization tank optimization device of the VPSA oxygen generator described in this utility model.

[0024] In the diagram: 1. Airflow guide vane; 2. Pressure equalizing plate; 21. Vent hole; 3. Guide tube; 31. Flow guiding pattern; 4. Flow stabilizer; 5. Air inlet; 6. Air outlet; 7. Wear-resistant coating; 8. Elastic support plate; 9. Sealing ring; 10. Flow aid protrusion; 11. Metal fiber; 12. Pressure equalizing tank Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In this invention, "VPSA" is an abbreviation for Vacuum Pressure Swing Adsorption Technology.

[0027] like Figures 1-4 As shown, an optimization device for the equalizing tank 12 of a VPSA oxygen generator according to this application includes an airflow guide vane 1, an equalizing plate 2, a flow guide pipe 3, and a flow stabilizer 4. Through the design and synergistic effect of multiple key components, this device significantly improves the flow state of gas within the equalizing tank 12, thereby enhancing the overall efficiency of the oxygen generator.

[0028] The airflow guide vanes 1 are a key component used to guide airflow smoothly along a specific path. Their spiral arrangement effectively guides the airflow entering the equalizing tank 12, reducing vortex formation. The surface of the airflow guide vanes 1 undergoes special treatment, achieving extremely high smoothness, further reducing resistance. During installation, the vanes are directly fixed to the inner wall of the equalizing tank 12, utilizing a structured layout to ensure smooth airflow in the area near the tank wall. From a technical perspective, the airflow guide vanes 1 can be manufactured using high-precision CNC machine tools from metal or composite materials, ensuring accurate shape and a smooth surface.

[0029] The equalizing plate 2 is located in the center of the equalizing tank 12, running through all the main airflow channels. Its function is to balance the air pressure distribution within the tank, preventing turbulent airflow caused by pressure differences. Specifically, the equalizing plate 2 achieves this through multiple gradually increasing vent holes 21: these vent holes 21 gradually increase in size from the center to the edge, allowing airflow to circulate evenly in different areas, thereby eliminating turbulence caused by pressure fluctuations. In practice, the plate can be manufactured with precise opening diameters and distribution using precision molding processes, ensuring the functionality of the gradually increasing vent holes 21.

[0030] The flow guide pipe 3 connects the air inlet 5 and outlet 6 of the equalizing tank 12, introducing external airflow and guiding it downstream while optimizing the internal airflow path. The inner wall of the flow guide pipe 3 is provided with a series of guiding patterns 31. These raised patterns are manufactured using advanced texturing technology to improve boundary layer separation effects and significantly reduce energy waste caused by turbulence. For ease of assembly, the flow guide pipe 3 can be connected to other components via flanges or clamps, and its diameter can be adjusted according to operating conditions to match different flow rate requirements.

[0031] The flow stabilizer 4 is located near the air inlet 5 in the equalizing tank 12, and is used to assist in regulating the direction of the incoming gas, allowing it to diffuse more evenly throughout the tank space. The flow stabilizer 4 adopts a flexible mesh structure, which can maintain a certain degree of deformation capacity while withstanding a certain airflow impact force, thereby adapting to the dynamic changes in the current airflow pattern. This component may be made of polymer materials, and complex mesh shapes may be created using laser cutting or 3D printing methods to provide the necessary structural strength and flexibility.

[0032] The aforementioned device addresses a key challenge in existing technologies through integrated design: effectively reducing eddies and turbulence to improve gas exchange efficiency. Specifically, the airflow guide vane 1 significantly reduces the probability of vortex formation in the tank's inner wall region; the equalizing plate 2, with its gradually varying aperture design, achieves uniform airflow distribution and effectively mitigates problems caused by excessive pressure gradients; the guide pipe 3, in conjunction with the flow-guiding pattern 31, optimizes the smoothness of the entire transmission process; furthermore, the adaptive flow stabilizer 4 promotes a smoother transition during the initial gas inflow. Combining these methods, an optimized device for the equalizing tank 12 of a VPSA oxygen generator significantly improves the aerodynamic environment quality without increasing energy consumption, creating favorable conditions for subsequent separation processes and thus achieving the goal of improving gas exchange efficiency.

[0033] like Figure 2 As shown, in one embodiment, the airflow guide vane 1 of the VPSA oxygen generator equalization tank 12 optimization device of this application is installed on the inner wall of the equalization tank 12 by a spiral design, and its angle can be adjusted according to actual operating requirements. This vane has an adjustable spiral angle range, specifically between 30° and 60°, thereby better matching the airflow velocity and direction under different operating conditions. Due to the complex airflow state inside the equalization tank 12, the vane angle adjustment mechanism can achieve fine-tuning of the airflow guidance effect. Furthermore, the design of this structure fully considers the changing airflow path requirements inside the equalization tank 12, and ensures the stability of the vane operation through a stable connection with the inner wall.

[0034] For example, the adjustable helical angle can be achieved by adding an angle adjustment mechanism between the airflow guide vane 1 and the inner wall of the equalizing tank 12. Specifically, this angle adjustment mechanism includes a connector and an adjustment unit, wherein one end of the connector is fixed to the root of the vane, and the other end is connected to a support frame on the inner wall of the tank, while the adjustment unit provides a precise angle adjustment range through a knob or threaded structure. This design allows the tilt of the airflow guide vane 1 to be flexibly set according to specific application conditions without changing the overall installation form of the vane and the equalizing tank 12.

[0035] like Figure 2 As shown, in one embodiment, the airflow guide vanes 1 of the VPSA oxygen generator equalization tank 12 optimization device of this application are installed on the inner wall of the equalization tank 12, arranged in a spiral shape and with an inclined angle. To further optimize performance, a wear-resistant coating 7 is coated on its surface through a specific process to improve the wear resistance of the components and reduce the frictional resistance during gas flow. This design combines structural features with surface treatment technology, which can effectively address the loss problem under high-pressure airflow environment while ensuring smooth airflow. Due to the complex working conditions inside the equalization tank 12, the selection of coating materials needs to consider both stability and adaptability.

[0036] For example, the aforementioned features can be achieved by using nitride ceramic materials or hard alloy coatings. These coatings are fixed to the surface of the airflow guide vane 1 using techniques such as electroplating, spraying, or physical vapor deposition. For instance, in the specific processing, the metal substrate can be pretreated before spraying with a high-temperature resistant polymer or ceramic composite coating to meet the requirement of strong adhesion between the coating and the blade substrate, while ensuring uniform thickness and avoiding affecting the integrity of the original structure and function. In addition, the coating process will fully consider the reaction characteristics that may be triggered by contact with the gas environment, further matching the requirements of the application scenario.

[0037] like Figure 2 As shown, in one embodiment, an elastic support plate 8 is provided between the airflow guide vanes 1 of the pressure equalization tank 12 optimization device of the VPSA oxygen generator of this application. Its specific function is to ensure that the spacing between the vanes remains uniformly distributed, avoiding vane deformation or misalignment caused by external vibration or internal gas pressure fluctuations. The airflow guide vanes 1 are installed on the inner wall of the pressure equalization tank 12, arranged in a spiral shape, and fixed at a certain tilt angle. Their surface is treated to be smooth to reduce airflow obstruction. The elastic support plate 8, as an auxiliary component, is embedded between adjacent airflow guide vanes 1, fitting tightly with the vanes without affecting the overall airflow path.

[0038] For example, a high-strength polymer material can be used to make an elastic support plate 8, which can be fixed to the back of the blade by adhesive bonding or snap-fit. Specifically, the support plate is flexible and elastic, which can naturally adapt to the blade gap during assembly, and limit and support the blade through its rebound force, thereby maintaining the preset positional relationship and spacing of each airflow guide blade 1. This design does not require additional assembly process complexity, which facilitates assembly and maintenance in practical applications.

[0039] like Figure 2 As shown, in one embodiment, the equalizing plate 2 of the VPSA oxygen generator equalizing tank 12 optimization device is located in the central region of the equalizing tank 12 and is one of the core components of the optimization device. The equalizing plate 2 is made of a special high-temperature resistant material, which possesses excellent extreme temperature adaptability and good corrosion resistance, enabling it to withstand the effects of alternating high and low temperatures and chemical media erosion during the long-term operation of the VPSA oxygen generator. Through the selection and modification of the material of the equalizing plate 2, crack propagation caused by thermal stress or surface damage caused by chemical substances can be effectively delayed, thereby ensuring stable operation and improving its overall lifespan.

[0040] For example, the pressure equalizing plate 2 can be prepared by selecting high-performance ceramic composite materials or alloy-based corrosion-resistant materials, and its surface can be coated with a protective coating to further enhance its resistance. These materials can be formed through precision casting, pressing and sintering, or other mature processes and then embedded into the pressure equalizing tank 12, ensuring that its position is at the center of all airflow channels and runs through the connecting guide pipe 3 to equalize the pressure distribution within the tank. In this structure, the pressure equalizing plate 2, through the synergistic effect of the gradient vent holes 21, ensures seamless cooperation and functional integration with upstream and downstream components.

[0041] like Figure 2 As shown, in one embodiment, the distribution and number of vent holes 21 in the optimized device of the pressure equalization tank 12 of the VPSA oxygen generator of this application are specially designed to achieve more uniform gas flow and reduce the possibility of eddy formation. The vent holes 21 are disposed on the pressure equalization plate 2, which is installed in the center of the pressure equalization tank 12 and extends through the entire airflow channel, ensuring that its pressure balance effect on various areas within the tank is not significantly deviated. Specifically, the diameter of the vent holes 21 gradually increases from the center to the edge, thereby adapting to changes in the spatial gradient of gas pressure, allowing the inflowing or outflowing gas to diffuse over a wider range.

[0042] Furthermore, the arrangement of the vents 21 is not a simple arrangement, but rather an optimized design based on a computational fluid dynamics model. The specific location and quantity distribution are determined by combining the actual airflow trajectory and pressure distribution within the tank. For example, in certain critical areas, the density of the vents 21 can be appropriately increased to improve the accuracy of local pressure control while avoiding disturbances caused by concentrated airflow.

[0043] Specifically, this feature can be achieved by pre-constructing an internal airflow field model using numerical simulation software, and determining the optimal layout of the vents 21 based on the simulation results. By combining simulation data with experimental tests, it can be verified whether the specific location and geometric parameters of the vents 21 meet the expected airflow regulation requirements, ensuring that the optimization effect conforms to actual operating conditions.

[0044] like Figure 3 As shown in one embodiment, the optimized device for the equalizing tank 12 of a VPSA oxygen generator according to this application is characterized by a sealing ring 9 installed between the air inlet 5 and the air outlet 6 and the guide pipe 3. Specifically, the sealing ring 9 is disposed at the connection position between the air inlet 5 and the air outlet 6 and the guide pipe 3, achieving a good airtight connection by filling the gap between them, preventing airflow leakage from the joint. At the same time, the structural characteristics of the sealing ring 9 make it adaptable, which can alleviate the problem of interface loosening caused by vibration or slight deformation. To ensure reliability, the sealing ring 9 is usually made of flexible material and fits tightly against the outside of the guide pipe 3 and the interface end face of the air inlet and outlet 6.

[0045] For example, a high-pressure resistant and aging-resistant material such as silicone rubber can be used to form a sealing ring 9, which is pre-assembled on the outer side of the end of the guide tube 3. Then, the sealing ring 9 is inserted into the air inlet 5 or the air outlet 6 along with the guide tube 3 until the sealing ring 9 is compressed and firmly attached to the mating surface. This method can achieve airtight design simply and efficiently, ensuring that the entire system is stable and leak-free during operation.

[0046] like Figure 1 and Figure 3 As shown, in one embodiment, the guide pipe 3 of the optimized device for the equalizing tank 12 of a VPSA oxygen generator according to this application adopts a gradually changing elbow design to improve airflow performance. The guide pipe 3 is located on the connecting path between the air inlet 5 and the air outlet 6 of the equalizing tank 12, and its shape gradually transitions from a straight line to a curved structure, avoiding the increased gas flow resistance and energy loss caused by traditional right-angle elbows. Specifically, this gradually changing elbow is achieved by gradually increasing the radius of curvature, ensuring that the gas can flow along a smoother path at the bend, reducing eddy currents caused by sudden turns. When used in conjunction with the flow stabilizer 4, this structure can more effectively adjust the airflow state while ensuring continuous and uniform gas flow throughout the entire device.

[0047] For example, the guide pipe 3 can be manufactured using an integral molding process, and its inner wall curve can be precisely controlled by a CNC machine tool to form the required gradual elbow structure. During assembly, one end of the guide pipe 3 is fixedly connected to the air inlet 5 of the equalizing tank 12, and the other end extends to the air outlet 6 and is sealed, so that it forms a complete and smooth airflow circulation path.

[0048] like Figure 3 As shown, in one embodiment, the flow-guiding pattern 31 of the optimized device for the equalizing tank 12 of a VPSA oxygen generator according to this application is disposed on the inner wall of the guide pipe 3. The cross-section of the flow-guiding pattern 31 is designed as a semi-circular or wavy structure. This structural choice can significantly enhance the gas guiding capability while effectively reducing the frictional resistance of the airflow on the inner wall surface of the guide pipe 3. Specifically, the semi-circular or wavy structure of the flow-guiding pattern 31 can be transitioned through continuously varying curvature to ensure that the airflow flows stably along a specific path and is not prone to forming vortices.

[0049] For example, the inner wall of the guide tube 3 can be machined using a CNC machine tool to generate precise semi-circular or wavy drainage patterns 31, thereby ensuring its geometric accuracy and uniform distribution. Specifically, when the guide tube 3 is made of metal, the design and processing of the drainage patterns 31 can be completed using laser cutting or precision turning processes. When non-metallic materials are used, the integrated construction of the guide tube 3 with the guide tube 3 can be achieved through injection molding or other methods.

[0050] like Figure 4As shown, in one embodiment, the flow stabilizer 4 of the optimization device for the equalizing tank 12 of a VPSA oxygen generator according to this application is provided with flow-aiding protrusions 10 at the grid nodes to assist in adjusting the gas flow direction and enhance the gas diffusion effect. The flow-aiding protrusions 10, through their special design, guide the airflow as it passes through the flow stabilizer 4, promoting a more uniform airflow distribution. Specifically, the flow-aiding protrusions 10 are tightly integrated with the flow stabilizer 4 and located at the intersection of the grid nodes. This arrangement allows the gas to obtain additional directional control as it passes through the nodes. Furthermore, the flow-aiding protrusions 10 must be designed with appropriate shape and height to ensure the stability of the airflow as it passes through.

[0051] To achieve the above structure, the flow-aiding protrusions 10 can be fixed to the surface of the flow stabilizer 4 through mold processing or subsequent assembly processes. For example, the flow-aiding protrusions 10 can be firmly bonded to the flow stabilizer 4 by welding or integral molding, while maintaining a smooth surface transition. In this way, not only can unnecessary airflow interference be avoided, but the airflow regulation effect within the entire pressure equalization tank 12 can also be ensured to be more precise and efficient.

[0052] like Figure 4 As shown, in one embodiment, the flow stabilizer 4 of the VPSA oxygen generator equalization tank 12 optimization device of this application uses a grid node structure constructed from metal fiber 11. This metal fiber 11 material has high tensile strength and excellent flexibility, suitable for coping with multi-directional impacts in complex airflow fields. Specifically, these grid nodes are evenly distributed in the flow stabilizer 4 near the air inlet 5 inside the equalization tank 12, and are tightly integrated with the flow stabilizer 4 to form a mesh distribution system. Through this design, the flow pattern can be further adjusted when gas rapidly enters the equalization tank 12, and the airflow distribution can be made more balanced.

[0053] For example, nickel-based or iron-based alloys can be selected as the material for the metal fibers 11, which are then woven into a three-dimensional mesh node with a microporous structure and embedded inside the flow stabilizer 4. Subsequently, the flow stabilizer 4 is fixed to the front end of the guide pipe 3 near the air inlet 5 of the equalizing tank 12, ensuring seamless connection between it and the inner wall of the guide pipe 3 and the equalizing tank 12 to maintain stability, ultimately forming an integral assembly structure. In this way, the mesh node composed of the metal fibers 11 can effectively function to cope with airflow fluctuations under various operating conditions.

[0054] In actual operation, when this device is in use, the airflow enters the pressure equalization tank 12 through the guide pipe 3. At this time, the flow stabilizer 4 is located at the front end of the guide pipe 3, which can initially adjust the flow direction of the newly entered gas, so that the airflow is evenly diffused throughout the tank space, avoiding the formation of turbulent flow due to excessive local airflow concentration. Subsequently, the airflow guide vanes 1 are set along the inner wall of the tank, and their spiral arrangement guides the airflow to flow along a specific path, reducing eddy current generation and improving gas exchange efficiency. At the same time, the pressure equalization plate 2 is placed in the center of the pressure equalization tank 12, which can balance the pressure distribution in different areas of the tank, ensuring more stable and uniform air pressure. In addition, the pressure equalization plate 2 is provided with gradually increasing vent holes 21. As the airflow diffuses towards the edge, the design of gradually increasing hole diameter helps to reduce airflow resistance and optimize flow distribution. Finally, the guide pipe 3 connects the air inlet 5 and the air outlet 6 of the pressure equalization tank 12, and stably outputs the treated airflow to the next stage.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0056] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A device for optimizing the pressure equalization tank of a VPSA oxygen generator, characterized in that, include: Pressure equalization tank (12); wherein, the pressure equalization tank (12) is provided with an air outlet (6) at the top and an air inlet (5) at the bottom; Airflow guide vanes (1) are disposed on the inner wall of the equalizing tank (12) to guide airflow; wherein the airflow guide vanes (1) are arranged in a spiral shape and have an inclined angle and a smooth surface; A pressure equalizing plate (2) is provided inside the pressure equalizing tank (12) to balance the air pressure in various parts of the tank; wherein, the pressure equalizing plate (2) is provided with multiple sets of vent holes (21), the diameter of the multiple sets of vent holes (21) gradually increases from the center to the edge, and adopts a gradient structure design; The guide tube (3) is connected to the air inlet (5) and the air outlet (6); wherein the inner wall of the guide tube (3) is provided with raised drainage patterns (31), which helps the airflow to flow smoothly and reduce resistance; A flow stabilizer (4) is located inside the equalizing tank (12) near the air inlet (5) to assist in adjusting the flow direction of the incoming gas; wherein, the flow stabilizer (4) is arranged in a mesh pattern, has flexibility, and can adjust its shape according to changes in airflow; wherein The equalizing plate (2) runs through all airflow channels and is connected to the guide pipe (3); the flow stabilizer (4) is fixed to the front end of the guide pipe (3).

2. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: The spiral angle of the airflow guide vane (1) can be adjusted within the range of 30° to 60° to adapt to the needs of different airflow speeds and directions.

3. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: The surface of the airflow guide vane (1) is coated with a wear-resistant coating (7) to increase service life and reduce frictional resistance.

4. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: An elastic support plate (8) is provided between the airflow guide blades (1) to prevent the blades from deforming or misaligning due to external forces.

5. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: A sealing ring (9) is provided between the air inlet (5), the air outlet (6) and the guide pipe (3) to prevent airflow from leaking out of the gap.

6. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: The guide pipe (3) adopts a gradual bend design to reduce energy loss caused by right-angle turns.

7. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: The cross-section of the drainage pattern (31) is semi-circular or wavy to enhance the drainage effect and reduce frictional resistance.

8. The pressure equalization tank optimization device for VPSA oxygen generator according to claim 1, characterized in that: The flow stabilizer (4) is provided with flow-aiding protrusions (10) at the grid nodes to adjust the gas flow direction and enhance the diffusion effect.

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