An oxygen generating device with rapid cycle pressure swing adsorption function

Abstract

The utility model discloses an oxygen -generating equipment with quick circulation pressure swing adsorption function belongs to gas separation and oxygen -generating equipment technical field, including the purification tank, the pipeline is fixedly installed to the side of purification tank, is set with the recess in the inside of purification tank, the filter screen is slidably connected in the inside of purification tank, the fixed shell is fixedly installed to the side of purification tank, and the fixed shell is fixedly connected with the clamping block through the spring in the inside. The utility model compresses the air and enters the purification tank through the pipeline, and the impurity is filtered to the filter screen of quick detachable, and the clean air after filtering pushes the spring baffle mechanism under the pneumatic effect, makes the airflow even diffusion to the adsorbent material surface through multiple air cylinder, realizes the even distribution and high -efficient mass transfer of gas in the adsorption bed layer, thereby the efficiency and stability of pressure swing adsorption process are improved significantly, and the maintenance cost is reduced greatly through the modularization detachable filter screen design simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of gas separation and oxygen generation equipment, and in particular to an oxygen generation device with rapid cyclic pressure swing adsorption function. Background Technology

[0002] Currently, in commercially available pressure swing adsorption (PSA) oxygen generators, filters are prone to clogging due to dust accumulation during long-term operation. Replacement is complex, requiring the disassembly of multiple bolts or clips with tools, resulting in low maintenance efficiency and potentially extended downtime. Furthermore, uneven airflow distribution is a common problem in traditional equipment, with compressed air often concentrated at a single or few outlets. This leads to excessively high local loads on the adsorption bed, creating airflow "dead zones," reducing molecular sieve utilization and nitrogen desorption efficiency, ultimately affecting oxygen purity and system energy consumption.

[0003] While existing technologies employ perforated plates or flow-guiding structures to improve airflow distribution, their fixed structures cannot adaptively adjust airflow distribution based on pressure changes, and filter maintenance still relies on cumbersome mechanical fixing methods. Therefore, there is an urgent need for an oxygen generator that combines rapid maintainability with dynamic airflow optimization to address these technological shortcomings.

[0004] Therefore, an oxygen generation device with rapid cyclic pressure swing adsorption function is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems of cumbersome filter maintenance and low replacement efficiency in existing pressure swing adsorption (PSA) oxygen generators, as well as the uneven airflow distribution leading to local saturation of the adsorption bed and insufficient utilization efficiency of molecular sieves. Therefore, this invention proposes an oxygen generator with rapid circulating PSA function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An oxygen generator with rapid circulating pressure swing adsorption (PSA) function includes a purification tank. A pipe is fixedly installed on the side of the purification tank. A groove is formed inside the purification tank. A filter screen is slidably connected inside the purification tank. A fixed shell is fixedly installed on the side of the purification tank. A locking block is fixedly connected inside the fixed shell by a spring. A handle is fixedly connected to the locking block through a small hole on the surface of the fixed shell. Multiple ventilation cylinders are fixedly installed inside the purification tank. A ventilation plate is fixedly installed below each of the multiple ventilation cylinders. A spring is fixedly connected below the ventilation plate. A baffle is movably connected above the ventilation plate by a limiting rod. A locking plate is fixedly connected to the baffle through the ventilation plate.

[0007] Preferably, the spring is always kept in a compressed state. In this state, the spring continuously stores elastic potential energy due to its own deformation, and based on its elastic recovery characteristics, it always applies a rebound force to the outside in the opposite direction of compression.

[0008] Preferably, the filter screen has a slot on its side, and the size of the card block is adapted to the slot on the side of the filter screen.

[0009] Preferably, the baffle is slidably connected to the inside of the ventilator via a limiting rod, the size of the baffle is adapted to the inner cavity size of the ventilator, and the size of the locking block is adapted to the inner cavity size of the fixed shell.

[0010] Preferably, both the vent plate and the baffle are provided with ventilation holes, and the ventilation holes on the surfaces of the vent plate and the baffle are arranged in a staggered manner in space.

[0011] Preferably, the ventilation cylinder is provided in multiple parts, and when the baffle is subjected to a preset threshold thrust, it will displace away from the ventilation plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a quick-release locking block structure, which makes filter maintenance extremely simple. The filter can be disassembled and installed in seconds without tools, significantly reducing the risk of negligence due to inconvenient maintenance. This ensures that the filtration system continuously and efficiently protects the expensive internal adsorption materials, effectively extending the service life of the core components of the purification tank and maintaining stable oxygen purity.

[0013] This invention achieves uniform gas distribution and discharge across the cross-section of the adsorption bed through the coordinated design of multiple air ducts and spring baffles. It fundamentally solves the problems of uneven airflow distribution and local accumulation forming "dead zones" in traditional devices, significantly improving the utilization rate of molecular sieve adsorbents and nitrogen desorption efficiency, reducing system energy consumption and extending the lifespan of adsorbent materials. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an oxygen generator with rapid cyclic pressure swing adsorption function proposed in this utility model. Figure 2 This invention presents a structural cross-section of an oxygen generator with rapid cyclic pressure swing adsorption (PSA) function. Figure 1 ; Figure 3 This invention presents a structural cross-section of an oxygen generator with rapid cyclic pressure swing adsorption (PSA) function. Figure 2 ; Figure 4 This is a schematic diagram of the filter structure of an oxygen generator with rapid cyclic pressure swing adsorption function proposed in this utility model. Figure 5 This is an assembly diagram of the ventilation cylinder structure of an oxygen generator with rapid cyclic pressure swing adsorption function proposed in this utility model. Figure 6 This is an assembly drawing of the fixed shell structure of an oxygen generator with rapid cyclic pressure swing adsorption function proposed in this utility model.

[0015] In the diagram: 1. Purification tank; 2. Pipe; 3. Handle; 4. Filter screen; 5. Ventilation tube; 6. Spring; 7. Clamping plate; 8. Clamping block; 9. Ventilation plate; 10. Fixed shell; 11. Limiting rod; 12. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-6 An oxygen generator with rapid circulating pressure swing adsorption (PSA) function includes a purification tank 1, a pipe 2 fixedly installed on the side of the purification tank 1, a groove opened inside the purification tank 1, a filter screen 4 slidably connected inside the purification tank 1, a fixed shell 10 fixedly installed on the side of the purification tank 1, a locking block 8 fixedly connected inside the fixed shell 10 by a spring 6, a handle 3 fixedly connected to the locking block 8 through a small hole opened on the surface of the fixed shell 10, multiple ventilation cylinders 5 fixedly installed inside the purification tank 1, a ventilation plate 9 fixedly installed below the ventilation cylinders 5, a spring 6 fixedly connected below the ventilation plate 9, a baffle 12 movably connected above the ventilation plate 9 by a limiting rod 11, and a locking plate 7 fixedly connected to the baffle 12 through the ventilation plate 9.

[0018] Through the above technical solution, in the oxygen production process, the compressed air first enters the equipment through the pre-installed pipe 2 on the side of the purification tank 1. During this process, the air preferentially flows through the filter screen 4 structure that is slidably connected inside the purification tank 1. This filter screen 4 can effectively intercept and filter solid pollutants such as dust and impurities contained in the air, preventing such substances from entering the deeper layers of the purification tank 1 with the airflow and coming into contact with the internal adsorption material. This prevents the adsorption performance of the adsorption material from decaying and its service life from being shortened due to the adhesion or blockage of impurities, thus ensuring the stability and efficiency of the adsorption process in oxygen production.

[0019] When filter 4 accumulates pollutants and its filtration efficiency decreases after long-term use, requiring cleaning or replacement, the operator can quickly install or remove filter 4 using the handle 3 connected to the small holes on the surface of the fixed housing 10. Specifically, when the handle 3 is pulled, the locking block 8, which is fixedly connected to the handle 3, will overcome the elastic force of the spring 6 inside the fixed housing 10 and displace, thus disengaging from the slot on the side of filter 4 and releasing the constraint on filter 4. At this time, the operator can pull filter 4 out along the preset groove inside the purification tank 1. After cleaning or replacement, the operator can push filter 4 back to its original position. The spring 6 inside the fixed housing 10 will push the locking block 8 back to its original position due to its elastic recovery characteristics and re-embed it into the slot of filter 4, achieving a stable installation of filter 4. The entire process does not require complicated tools, effectively improving the convenience and efficiency of equipment maintenance.

[0020] Specifically, the spring 6 is always kept in a compressed state. In this state, the spring 6 continuously stores elastic potential energy due to its own deformation, and based on its elastic recovery characteristics, it always applies a rebound force to the outside in the opposite direction to the compression direction. The filter screen 4 has a slot on its side, and the size of the block 8 is adapted to the slot on the side of the filter screen 4.

[0021] Through the above technical solution, the clean air filtered by the filter screen 4 will accumulate around the multiple ventilation cylinders 5 inside the purification tank 1. As air continues to flow in, the air pressure around the ventilation cylinders 5 gradually increases. When the air pressure reaches a preset threshold, the thrust generated will overcome the compression force of the spring 6 below the ventilation plate 9, causing the spring 6 to further compress and deform. At the same time, it will drive the baffle 12, which is movably connected to the ventilation plate 9 through the limiting rod 11, to move along the axis of the limiting rod 11 and gradually move away from the ventilation plate 9.

[0022] Since both the vent plate 9 and the baffle 12 have ventilation holes on their surfaces, and these holes are staggered in space, when the baffle 12 is not moved, the ventilation holes of the vent plate 9 are blocked by the baffle 12, and the airflow cannot pass through. However, when the baffle 12 moves away from the vent plate 9, the originally staggered ventilation holes are connected, and the accumulated compressed air can pass smoothly through the ventilation holes of the vent plate 9 and the baffle 12, enter the interior of the ventilation cylinder 5, and finally be discharged synchronously through the top outlets of multiple ventilation cylinders 5.

[0023] This design utilizes a multi-channel air cylinder 5 structure for dispersed exhaust, combined with a pressure-driven automatic conduction mechanism, to ensure that clean air is evenly distributed within the purification tank 1 during the exhaust process. This effectively avoids the problem of localized concentrated exhaust during the nitrogen removal process of air in traditional oxygen generators due to a single exhaust path. It not only improves the uniformity of gas-adsorption material contact but also provides a strong guarantee for the stability and efficiency of the subsequent pressure swing adsorption oxygen generation process.

[0024] Specifically, the baffle 12 is slidably connected to the inside of the ventilator 5 via the limiting rod 11. The size of the baffle 12 is adapted to the ventilator 5, and the size of the locking block 8 is adapted to the fixed shell 10. Ventilation holes are provided on the surfaces of the ventilator plate 9 and the baffle 12, and the ventilation holes on the surfaces of the ventilator plate 9 and the baffle 12 are staggered in spatial arrangement. There are multiple ventilators 5. When the baffle 12 is subjected to a certain pushing force, it will move away from the ventilator plate 9.

[0025] Working principle: In use, compressed air first enters the equipment through the side pipe 2 of the purification tank 1, and preferentially flows through the filter 4 slidably connected inside the tank to filter out solid pollutants such as dust to protect the internal adsorption material. When the filter 4 needs to be cleaned or replaced, pulling the handle 3 on the surface of the fixed shell 10 can disengage the locking block 8 from the slot of the filter 4. After the limit is released, the filter 4 can be replaced along the groove. When resetting, the spring 6 pushes the locking block 8 to reposition the filter 4. The filtered clean air gathers around the multiple ventilation cylinders 5. When the air pressure reaches the preset threshold, it overcomes the elastic force of the spring 6 below the ventilation plate 9 and pushes the baffle 12 connected to the ventilation plate 9 through the limiting rod 11 to move. This makes the originally staggered ventilation plates 9 and baffle 12 open to each other, and the air is discharged synchronously through the top of the ventilation cylinder 5, achieving uniform gas distribution. This provides stable and efficient airflow conditions for subsequent pressure swing adsorption oxygen production, improves the utilization rate of molecular sieve adsorbent and nitrogen desorption efficiency, and reduces system energy consumption.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oxygen generator with rapid circulating pressure swing adsorption (PSA) function, comprising a purification tank (1), characterized in that, The purification tank (1) has a pipe (2) fixedly installed on its side. The purification tank (1) has a groove inside. The purification tank (1) has a filter screen (4) slidably connected inside. The purification tank (1) has a fixed shell (10) fixedly installed on its side. The fixed shell (10) has a locking block (8) fixedly connected inside by a spring (6). The locking block (8) has a handle (3) fixedly connected through a small hole on the surface of the fixed shell (10). The purification tank (1) has multiple air cylinders (5) fixedly installed inside. Each of the multiple air cylinders (5) has an air vent plate (9) fixedly installed below it. The air vent plate (9) has a spring (6) fixedly connected below it. The air vent plate (9) has a baffle (12) movably connected above it by a limiting rod (11). The baffle (12) passes through the air vent plate (9) and is fixedly connected to a locking plate (7).

2. An oxygen generator with rapid cyclic pressure swing adsorption function according to claim 1, characterized in that, The spring (6) is always in a compressed state. In this state, the spring (6) continuously stores elastic potential energy due to its own deformation, and based on its elastic recovery characteristics, it always applies a rebound force to the outside in the opposite direction of compression.

3. An oxygen generator with rapid cyclic pressure swing adsorption function according to claim 1, characterized in that, The filter screen (4) has a slot on its side, and the size of the card block (8) is adapted to the slot on the side of the filter screen (4).

4. An oxygen generator with rapid cyclic pressure swing adsorption function according to claim 1, characterized in that, The baffle (12) is slidably connected to the inside of the ventilator (5) by the limiting rod (11). The size of the baffle (12) is adapted to the inner size of the ventilator (5), and the size of the locking block (8) is adapted to the inner size of the fixed shell (10).

5. An oxygen generator with rapid cyclic pressure swing adsorption function according to claim 1, characterized in that, Both the vent plate (9) and the baffle (12) have ventilation holes on their surfaces, and the ventilation holes on the surfaces of the vent plate (9) and the baffle (12) are arranged in a staggered manner in space.

6. An oxygen generator with rapid cyclic pressure swing adsorption (PSA) function according to claim 1, characterized in that, The ventilation cylinder (5) is provided in multiple parts, and the baffle (12) will be displaced away from the ventilation plate (9) when subjected to a preset threshold thrust.

Images