A gas purification pressure swing adsorption mechanism

Abstract

This invention discloses a gas purification pressure swing adsorption (PSA) mechanism, specifically relating to the field of PSA technology. It includes a PSA chamber, multiple flow guides, a flow divider, and a PSA extension assembly. The PSA extension assembly includes an injection pipe, a sliding frame, a bidirectional screw, and a drive motor, as well as an extension flow guide assembly and a flow detection assembly. This invention, through its PSA extension assembly, allows for automatic adjustment of the PSA area according to the flow rate of the purified gas, enabling expanded PSA adsorption. This results in a wider PSA contact area, allowing for rapid PSA adsorption of large flow rates of purified gas, and significantly improving PSA adsorption efficiency. This solves the problem that it is difficult to automatically adjust the PSA area according to the flow rate of the purified gas, which leads to difficulties in rapidly performing PSA adsorption on large flow rates of purified gas and a significant reduction in PSA adsorption efficiency.

Description

Technical Field

[0001] This invention relates to the field of pressure swing adsorption technology, and more specifically, to a pressure swing adsorption mechanism for gas purification. Background Technology

[0002] The principle of pressure swing adsorption (PSA) in gas purification is mainly based on the difference in adsorption capacity of the same gas component on the adsorbent under different pressures. At higher pressures, the adsorbent can adsorb more gas molecules; while at lower pressures, the adsorbed gas molecules will desorb from the adsorbent. By utilizing these two characteristics and controlling the rise and fall of pressure, gas purification PSA can be achieved, thus enabling purification operations during pressure changes.

[0003] A search of existing published literature reveals that patent publication number CN116020238A discloses a gas purification device utilizing the pressure swing adsorption (PSA) principle. This technology allows for real-time air absorption during PSA gas purification. Gas leaks around the PSA purifier are absorbed by gas collection hoods located at the top and bottom, along with a gas detection component in the middle. Gas drawn into the detection component is detected by a gas sensor, and an alarm is triggered when abnormal gas is detected, providing a rapid alert. However, this technology still has the following problems.

[0004] In the process of gas purification pressure swing adsorption (PSA), although the gas can be pressurized and impurities in the gas can be adsorbed by the adsorbent material to achieve gas purification, the gas flow rate increases significantly during PSA, while the adsorbent material is in a fixed position. This makes it difficult for the purified gas to achieve large-area contact adsorption with the adsorbent material, and the PSA area cannot be automatically adjusted according to the gas flow rate. This makes it difficult to quickly perform PSA for high-flow-rate purified gas, and the PSA efficiency is greatly reduced. Therefore, a gas purification PSA mechanism is needed. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, the present invention provides the following technical solution: a gas purification pressure swing adsorption (PSA) mechanism, comprising a PSA chamber, multiple guide tubes, and a split tube. The multiple guide tubes are all fixedly connected to one side of the PSA chamber. The split tube is disposed at one end of the guide tubes, and the multiple guide tubes are fixedly connected to the split tube. A PSA extension assembly is provided on one side of the split tube. The PSA extension assembly includes an injection tube fixedly disposed on one side of the split tube, and a sliding frame is fixedly connected to the inner wall of the PSA chamber. A bidirectional screw is rotatably connected to the inner wall of the sliding frame. A drive motor is fixedly installed on the side; the drive motor is used to drive the bidirectional screw to rotate. The two threads on the outer wall of the bidirectional screw are opposite and symmetrical. Two sleeve blocks are threadedly connected to the outer wall of the bidirectional screw. A connecting strip is fixedly connected to the upper surface of each sleeve block. A frame strip is fixedly connected to one end of each connecting strip. A molecular sieve adsorption tank plate is fixedly connected to one side of each of the two frame strips. The two molecular sieve adsorption tank plates are interlocked. A distance sensor is fixedly installed on one side of one of the frame strips. An extended flow guiding assembly is provided on the outer wall of the injection pipe. A flow detection assembly is provided at one end of the injection pipe.

[0006] Preferably, both of the sleeve blocks are slidably connected to the sliding frame, and the outer wall of the sleeve block and the inner wall of the sliding frame are both smooth surfaces; the output end of the drive motor is fixedly connected to the bidirectional screw. Both of the frame bars are slidably connected to the pressure swing adsorption (PSA) chamber, and both of the molecular sieve adsorption tank plates are slidably connected to the PSA chamber. A controller is mounted on the upper surface of the PSA chamber, and the controller is fixedly connected to the PSA chamber. A pressure sensor is provided on one side of the controller, and the pressure sensor is fixedly inserted into the PSA chamber.

[0007] In operation, this technology uses a drive motor to rotate a bidirectional screw. The screw, driven by the threaded transmission force, causes two connecting blocks to move away from each other, while the connecting strip moves the frame bar to the right. As the frame bar moves to the right along the inner wall of the pressure swing adsorption chamber, it simultaneously moves one molecular sieve adsorption tank plate to the right and another to the left. The two molecular sieve adsorption tank plates can be staggered and expanded. When the distance sensor contacts the tank on the right side of the inner wall of the pressure swing adsorption chamber, the two molecular sieve adsorption tank plates expand and flatten inside the chamber, achieving a large-area expansion and filling of the chamber's interior.

[0008] Preferably, the extended flow guiding assembly includes two branch valves fixedly disposed on the outer wall of the injection pipe; one end of each branch valve is threadedly connected to a branch air inlet pipe, one end of the branch air inlet pipe is fixedly connected to a dispersion pipe, and multiple branch pipes are fixedly connected to one side of the dispersion pipe, all of which are fixedly connected to the pressure swing adsorption box; multiple exhaust pipes are fixedly connected to the other side of the pressure swing adsorption box, an exhaust collection pipe is provided at one end of the exhaust pipe, multiple exhaust pipes are fixedly connected to the exhaust collection pipe, an exhaust valve is fixedly connected to one side of the exhaust collection pipe, and an exhaust branch pipe is threadedly connected to one end of the exhaust valve; both sides of the outer wall of the exhaust branch pipe are fixedly connected to outlet valves, one end of the outlet valve is threadedly connected to a branch inlet pipe, a connected flow guiding collection pipe is fixedly installed at one end of the branch inlet pipe, and multiple dispersion outlet pipes are fixedly connected to one side of the flow guiding collection pipe, all of which are fixedly connected to the pressure swing adsorption box. The two branch valves are symmetrically arranged about the injection pipe, and the cross-sectional shape of the two branch air inlets is L-shaped. Multiple dispersed pipes are arranged at equal intervals from front to back, and two outlet valves are symmetrically arranged about the outgoing branch pipes; the inner walls of the two branch inlet pipes are both smooth surfaces.

[0009] In operation, this technology involves opening two branch valves via a controller. A high-flow-rate purified gas is injected into the pipe and diverted through these valves. The gas then flows through branch inlet pipes into multiple branch pipes, achieving large-area contact adsorption with the extended surfaces of the two molecular sieve adsorption tanks. The adsorbed gas then flows through multiple outlet pipes and an outlet collection pipe, before being further diverted through multiple distribution pipes into the distribution collection pipe. From there, it flows through the branch inlet pipes to the outlet valve, and finally collects in the outlet branch pipe for discharge and storage.

[0010] Preferably, the flow detection assembly includes a gas flow meter fixedly mounted at one end of the injection pipe; one end of the gas flow meter is threadedly connected to a main valve, and one end of the main valve is fixedly mounted with a connected booster fan; the input end of the booster fan is fixedly connected to a booster pipe; one end of the booster pipe is fixedly connected to an intake main pipe, and intake valves are fixedly mounted on both sides of the outer wall of the booster pipe; one end of each intake valve is threadedly connected to an intake branch pipe. The booster fan is used to boost the gas, and the center point of the intake main pipe and the center point of the injection pipe are on the same horizontal line. The two intake valves are symmetrically arranged about the center point of the booster pipe, and the centers of the two intake branch pipes are on the same horizontal line.

[0011] In operation, this technology uses a gas flow meter to detect the flow rate of the purified gas. When the controller requires a large flow rate of purified gas, it opens two inlet valves. The purified gas flows through the two inlet branch pipes into the two inlet valves, while the large flow rate of purified gas flows through the main valve into the gas flow meter. When the flow rate detected by the gas flow meter exceeds the flow rate set by the controller, the controller immediately starts the drive motor.

[0012] The technical effects and advantages of this invention are as follows:

[0013] 1. This invention employs a pressure swing adsorption (PSA) extension component. A drive motor rotates a bidirectional screw, which in turn drives two sleeve blocks to move away from each other under the force of the threaded transmission. One sleeve block drives the connecting strip to move to the right, and the other sleeve block drives the other connecting strip to move to the left. The frame bar moves to the right along the inner wall of the PSA chamber, and the frame bar drives the molecular sieve adsorption tank plate to move to the right, while the other molecular sieve adsorption tank plate moves to the left. The two molecular sieve adsorption tank plates can be staggered and expanded. The distance sensor contacts the tank on the right side of the inner wall of the PSA chamber, achieving large-area adsorption expansion in the excess space on both sides of the PSA chamber. The PSA adsorption area can be automatically adjusted according to the flow rate of the large-flow purified gas, expanding the PSA adsorption. The wider PSA adsorption contact area allows for rapid PSA adsorption of large-flow purified gas, significantly improving the PSA adsorption efficiency.

[0014] 2. This invention, through the expansion of the flow guiding component, detects a large flow of purified gas and opens two branch valves via the controller. The large flow of purified gas injected into the pipe is then diverted through the two branch valves and distributed into multiple branch pipes via the branch inlet pipes. This allows the gas to enter the pressure swing adsorption (PSA) chamber through multiple flow guiding pipes and branch pipes. The large flow of purified gas can then achieve large-area contact adsorption with the extended surfaces of the two molecular sieve adsorption tanks. After adsorption, the large flow of purified gas is guided to the flow collection pipe through multiple dispersion pipes. The PSA area can be automatically adjusted according to the flow rate of the large flow of purified gas, achieving large-area uniform diversion of the gas inlet and outlet, thus significantly improving the PSA efficiency of the purified gas.

[0015] 3. This invention employs a flow detection component, using a gas flow meter to detect the flow rate of the purified gas. When the controller needs to process a large flow rate of purified gas, it opens two inlet valves, allowing the purified gas on both sides to enter the two inlet valves through the two inlet branch pipes. When the flow rate detected by the gas flow meter exceeds the flow rate set by the controller, the controller immediately starts the drive motor. This allows for automatic adjustment based on the flow rate of the large-flow purified gas, enabling rapid pressure swing adsorption and significantly improving adsorption efficiency.

[0016] Based on the interaction of the above-mentioned multiple functions, the purified gas on both sides first enters the two inlet valves through the two inlet branch pipes. The flow rate detected by the gas flow meter exceeds the flow rate set by the controller. Then, the two molecular sieve adsorption plates can be staggered and expanded, achieving large-area adsorption expansion in the excess space on both sides of the pressure swing adsorption chamber. Finally, multiple guide pipes and branch pipes allow the large-flow purified gas to make large-area contact adsorption with the expanded surfaces of the two molecular sieve adsorption plates, and the gas is then guided to the flow collection pipe through multiple dispersion pipes. In summary, the pressure swing adsorption area can be automatically adjusted according to the flow rate of the large-flow purified gas, expanding the pressure swing adsorption. The wider the pressure swing adsorption contact area, the faster the large-flow purified gas can undergo pressure swing adsorption, and the pressure swing adsorption efficiency is greatly improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the gas purification pressure swing adsorption mechanism of the present invention.

[0018] Figure 2 This is a top view of a partial structure of the cross-section of the pressure swing adsorption chamber of the present invention.

[0019] Figure 3 This is a partial structural diagram of the cross-section of the connection between the socket block and the connecting strip of the present invention.

[0020] Figure 4 This is a partial structural diagram of the connection between the drive motor and the slide frame of the present invention, viewed from below.

[0021] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure 6 This is a top view of a partial structural diagram of the connection between the connecting strip and the frame strip of the present invention.

[0023] Figure 7 This is a schematic diagram of the vertical cross-section of the gas purification pressure swing adsorption mechanism of the present invention.

[0024] Figure 8This is a partial top view of the connection between the pressure swing adsorption box and the controller of the present invention.

[0025] Figure 9 This is a partial structural diagram of the flow detection component of the present invention, shown in the front view truncated.

[0026] The attached diagram is labeled as follows: 1. Pressure swing adsorption box; 2. Guide pipe; 3. Diverter pipe; 4. Injection pipe; 5. Sliding frame; 6. Bidirectional screw; 7. Drive motor; 8. Sleeve block; 9. Connecting strip; 10. Frame strip; 11. Molecular sieve adsorption tank plate; 12. Distance sensor; 13. Controller; 14. Pressure sensor; 15. Branch valve; 16. Branch inlet pipe; 17. Dispersion pipe; 18. Branch pipe; 19. Outlet pipe; 20. Outlet collection pipe; 21. Outlet valve; 22. Outlet branch pipe; 23. Outlet valve; 24. Branch injection pipe; 25. Guide collection pipe; 26. Dispersion pipe; 27. Gas flow meter; 28. Main valve; 29. ​​Booster fan; 30. Booster pipe; 31. Main inlet pipe; 32. Inlet valve; 33. Inlet branch pipe. Detailed Implementation

[0027] 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.

[0028] As attached Figure 1-9 The diagram illustrates a gas purification pressure swing adsorption (PSA) mechanism. This mechanism includes a PSA extension component, an extension flow guiding component, and a flow detection component. The arrangement of these components allows the PSA area to be automatically adjusted according to the flow rate of the large-volume purified gas, enabling expanded PSA adsorption. This results in a wider PSA contact area, allowing for rapid PSA adsorption of large-volume purified gas and significantly improving PSA efficiency. The specific structural configuration of each component is as follows.

[0029] In this embodiment, as shown in the appendix Figure 1-7As shown, multiple guide pipes 2 are fixedly connected to one side of the pressure swing adsorption (PSA) chamber 1. A diversion pipe 3 is located at one end of the guide pipes 2, and the multiple guide pipes 2 are fixedly connected to the diversion pipe 3. A PSA expansion assembly is provided on one side of the diversion pipe 3. The PSA expansion assembly includes an injection pipe 4 fixedly installed on one side of the diversion pipe 3, and a sliding frame 5 is fixedly connected to the inner wall of the PSA chamber 1. A bidirectional screw 6 is rotatably connected to the inner wall of the sliding frame 5, and a drive motor 7 is fixedly installed on one side of the inner wall of the sliding frame 5. The drive motor 7 is used to drive the bidirectional screw 6 to rotate. Two opposing and symmetrical threads are opened on the outer wall of the double-acting screw 6. Two sleeve blocks 8 are connected to the outer wall threads of the double-acting screw 6. A connecting strip 9 is fixedly connected to the upper surface of each sleeve block 8. A frame strip 10 is fixedly connected to one end of each connecting strip 9. A molecular sieve adsorption tank plate 11 is fixedly connected to one side of each frame strip 10. The two molecular sieve adsorption tank plates 11 are inserted between each other. A distance sensor 12 is fixedly installed on one side of one of the frame strips 10. An extended flow guiding component is provided on the outer wall of the injection pipe 4. A flow detection component is provided at one end of the injection pipe 4.

[0030] In this embodiment, as shown in the appendix Figure 1-8 As shown, a controller 13 is installed on the upper surface of the pressure swing adsorption box 1. The controller 13 is fixedly connected to the pressure swing adsorption box 1. A pressure sensor 14 is provided on one side of the controller 13. The pressure sensor 14 is fixedly connected to the pressure swing adsorption box 1 so that when the pressure value sensed by the pressure sensor 14 is the same as the pressure value set by the controller 13, the external discharge valve 21 is opened by the controller 13.

[0031] In this embodiment, as shown in the appendix Figure 8 As shown, the extended flow guiding assembly includes two branch valves 15 fixedly installed on the outer wall of the injection pipe 4; one end of each branch valve 15 is threadedly connected to a branch air inlet pipe 16, one end of the branch air inlet pipe 16 is fixedly connected to a dispersion pipe 17, and multiple branch pipes 18 are fixedly connected to one side of the dispersion pipe 17, and the multiple branch pipes 18 are fixedly connected to the pressure swing adsorption box 1; multiple exhaust pipes 19 are fixedly connected to the other side of the pressure swing adsorption box 1, and an exhaust collection pipe 20 is provided at one end of the exhaust pipe 19.

[0032] Multiple outflow pipes 19 are fixedly connected to an outflow manifold 20. An outflow valve 21 is fixedly connected to one side of the outflow manifold 20, and an outflow branch pipe 22 is threadedly connected to one end of the outflow valve 21. Outflow valves 23 are fixedly connected to both sides of the outer wall of the outflow branch pipe 22. A branch inlet pipe 24 is threadedly connected to one end of the branch inlet pipe 24. A connecting guide manifold 25 is fixedly installed at one end of the branch inlet pipe 24, and multiple dispersion pipes 26 are fixedly connected to one side of the guide manifold 25. All multiple dispersion pipes 26 are fixedly connected to the pressure swing adsorption box 1. Two branch valves 15 are symmetrically arranged about the injection pipe 4, and the cross-sectional shape of the two branch inlet pipes 16 is L-shaped. Multiple dispersion pipes 26 are arranged equidistantly from front to back, and the two outflow valves 23 are symmetrically arranged about the outflow branch pipe 22. The inner walls of the two branch inlet pipes 24 are smooth.

[0033] In this embodiment, as shown in the appendix Figure 9 As shown, the flow detection assembly includes a gas flow meter 27 fixedly mounted at one end of the injection pipe 4; one end of the gas flow meter 27 is threadedly connected to a main valve 28, and a booster fan 29 is fixedly mounted at one end of the main valve 28; the input end of the booster fan 29 is fixedly connected to a booster pipe 30; one end of the booster pipe 30 is fixedly connected to an inlet main pipe 31, and inlet valves 32 are fixedly mounted on both sides of the outer wall of the booster pipe 30, with one end of each inlet valve 32 threadedly connected to an inlet branch pipe 33. The booster fan 29 is used to boost the gas, and the center point of the inlet main pipe 31 is at the same horizontal line as the center point of the injection pipe 4. The two inlet valves 32 are symmetrically arranged about the center point of the booster pipe 30, and the center points of the two inlet branch pipes 33 are at the same horizontal line.

[0034] The working principle of the gas purification pressure swing adsorption mechanism in this embodiment is as follows:

[0035] First, in the pressure swing adsorption (PSA) process of this invention, the main intake pipe 31 is connected to the purified gas delivery pipeline, and the other two intake branch pipes 33 are respectively connected to the other two purified gas delivery pipelines. The purified gas is delivered to the booster pipe 30 through the main intake pipe 31. At the same time, the booster fan 29 is started, the main valve 28 is opened, and the exhaust valve 21 is closed. In this way, the purified gas enters the gas flow meter 27 through the main valve 28, flows into the injection pipe 4 through the gas flow meter 27, flows into the diversion pipe 3 through the injection pipe 4, and is diverted into multiple guide pipes 2 through the diversion pipes 3. It then flows into the inside of the pressure swing adsorption chamber 1 through the multiple guide pipes 2. The two molecular sieve adsorption plates 11 limit the flow on both sides, thus allowing the purified gas to enter the inside of the pressure swing adsorption chamber 1, thereby achieving pressure swing and increase inside the pressure swing adsorption chamber 1.

[0036] Pressure sensor 14 senses the pressure inside the pressure swing adsorption (PSA) chamber 1. When the pressure value sensed by pressure sensor 14 matches the pressure value set by controller 13, controller 13 opens the exhaust valve 21, allowing the purified gas to pass through two molecular sieve adsorption plates 11 for PSA adsorption, removing impurities and achieving excellent purification. The purified gas flows through multiple exhaust pipes 19 into an exhaust manifold 20, and then through the exhaust manifold 20 into the exhaust valve 21. Opening the exhaust valve 21 allows the purified gas to be transported to the storage tank.

[0037] Secondly, when performing gas flow detection, the present invention uses a gas flow meter 27 to detect the flow of purified gas. When the controller 13 needs to process a large flow of purified gas, it opens two inlet valves 32. The purified gas from both sides enters the two inlet valves 32 through the two inlet branch pipes 33, and then converges into the booster pipe 30. Thus, a large flow of purified gas enters the gas flow meter 27 through the main valve 28. When the flow rate detected by the gas flow meter 27 exceeds the flow rate set by the controller 13, the controller 13 immediately starts the drive motor 7. This enables rapid flow measurement of the large flow of purified gas and provides a fast response to drive the motor 7.

[0038] Then, during the expansion of the pressure swing adsorption (PSA) process, the drive motor 7 drives the bidirectional screw 6 to rotate. The bidirectional screw 6 causes the two connecting blocks 8 to move away from each other under the action of the threaded transmission force. The connecting blocks 8 drive the connecting strip 9 to move to the right, and the other connecting block 8 drives the other connecting strip 9 to move to the left. The connecting strip 9 causes the frame strip 10 to move to the right. The frame strip 10 moves to the right along the inner wall of the PSA chamber 1, and at the same time, the frame strip 10 drives the molecular sieve adsorption tank plate 11 to move to the right, and the other molecular sieve adsorption tank plate 11 moves to the left. The two molecular sieve adsorption tank plates 11 can be staggered and expanded. When the frame strip 10 drives the distance sensor 12 to move to the right, the distance sensor 12 contacts the tank at the right side of the inner wall of the PSA chamber 1, which allows the two molecular sieve adsorption tank plates 11 to expand and spread out inside the PSA chamber 1. This achieves large-area adsorption expansion of the excess space on both sides of the PSA chamber 1, thereby achieving large-area expansion and filling of the interior of the PSA chamber 1.

[0039] Finally, when the present invention expands the flow, the controller 13 opens two branch valves 15, and the high-flow-rate purified gas inside the injection pipe 4 is diverted along the two branch valves 15. The branch valves 15 divert the gas into the branch inlet pipe 16, and then the gas is diverted into multiple branch pipes 18 through the branch inlet pipe 16. Thus, the gas enters the pressure swing adsorption box 1 through the multiple branch pipes 18. In this way, the high-flow-rate purified gas can make large-area contact adsorption with the extended surface of the two molecular sieve adsorption tank plates 11 through the multiple guide pipes 2 and the multiple branch pipes 18.

[0040] The adsorbed high-flow-rate purified gas flows through multiple outlet pipes 19 and then through an outlet manifold 20. From there, it is guided by an outlet valve 21 to an outlet branch pipe 22. Next, the adsorbed high-flow-rate purified gas flows over a large area through multiple distribution pipes 26 to a flow manifold 25. From there, it flows into a branch inlet pipe 24, then to an outlet valve 23, and finally into the outlet branch pipe 22 for discharge and storage. This allows for large-area uniform distribution of the high-flow-rate purified gas for both intake and exhaust, resulting in a wider flow area for pressure swing adsorption and a significantly improved pressure swing adsorption efficiency.

[0041] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas purification pressure swing adsorption (PSA) mechanism, comprising a PSA chamber, multiple guide tubes, and a split tube, wherein the multiple guide tubes are all fixedly connected to one side of the PSA chamber, the split tube is disposed at one end of the guide tubes, and the multiple guide tubes are all fixedly connected to the split tube, characterized in that: A pressure swing adsorption extension component is provided on one side of the shunt tube; The pressure swing adsorption extension assembly includes an injection pipe fixedly installed on one side of the shunt pipe, and a sliding frame is fixedly connected to the inner wall of the pressure swing adsorption box. A bidirectional screw is rotatably connected to the inner wall of the sliding frame, and a drive motor is fixedly installed on one side of the inner wall of the sliding frame. The drive motor is used to drive the bidirectional screw to rotate. The two threads on the outer wall of the bidirectional screw are opposite and symmetrical. The outer wall of the bidirectional screw is threaded with two sleeve blocks. A connecting strip is fixedly connected to the upper surface of each sleeve block. A frame strip is fixedly connected to one end of each connecting strip. Molecular sieve adsorption tank plates are fixedly connected to one side of each of the two frame bars, and the two molecular sieve adsorption tank plates are interlocked. A distance sensor is fixedly installed on one side of one of the frame bars. The outer wall of the injection tube is provided with an expansion guide assembly; One end of the injection tube is equipped with a flow detection component; The extended flow guiding assembly includes two branch valves fixedly installed on the outer wall of the injection pipe; Each of the branch valves is threaded to one end with a branch air inlet pipe, and one end of the branch air inlet pipe is fixedly connected to a dispersion pipe. Multiple branch pipes are fixedly connected to one side of the dispersion pipe, and the multiple branch pipes are fixedly connected to the pressure swing adsorption box. The other side of the pressure swing adsorption box is fixedly connected to multiple outflow pipes. An outflow collection pipe is provided at one end of the outflow pipe. The multiple outflow pipes are fixedly connected to the outflow collection pipe. An outflow valve is fixedly connected to one side of the outflow collection pipe. An outflow branch pipe is threaded to one end of the outflow valve. Both sides of the outer wall of the outflow branch pipe are fixedly connected to the outlet valve. One end of the outlet valve is threadedly connected to the branch inlet pipe. A connected guide and collection pipe is fixedly installed at one end of the branch inlet pipe. Multiple dispersed outlet pipes are fixedly connected to one side of the guide and collection pipe. All multiple dispersed outlet pipes are fixedly connected to the pressure swing adsorption box. The flow detection component includes a gas flow meter fixedly installed at one end of the injection pipe; One end of the gas flow meter is threadedly connected to a main valve, and one end of the main valve is fixedly installed with a connected booster fan. The input end of the booster fan is fixedly connected to a booster pipe. One end of the booster pipe is fixedly connected to the main intake pipe, and intake valves are fixedly installed on both sides of the outer wall of the booster pipe. One end of each intake valve is threadedly connected to an intake branch pipe.

2. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: Both of the aforementioned socket blocks are slidably connected to the sliding frame, and the outer wall of the socket block and the inner wall of the sliding frame are both smooth surfaces; The output end of the drive motor is fixedly connected to the bidirectional screw.

3. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: Both of the frame bars are slidably connected to the pressure swing adsorption box, and both of the molecular sieve adsorption tank plates are slidably connected to the pressure swing adsorption box.

4. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: A controller is installed on the upper surface of the pressure swing adsorption box, and the controller is fixedly connected to the pressure swing adsorption box. A pressure sensor is provided on one side of the controller, and the pressure sensor is fixedly plugged into the pressure swing adsorption box.

5. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The two branch valves are symmetrically arranged about the injection pipe, and the cross-sectional shape of the two branch air inlet pipes is L-shaped.

6. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The multiple distributed pipes are arranged at equal intervals from front to back, and the two outlet valves are symmetrically arranged about the outgoing branch pipes; The inner walls of both branch infusion tubes are smooth.

7. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The booster fan is used to boost the gas, and the center point of the main intake pipe and the center point of the injection pipe are on the same horizontal line.

8. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The two intake valves are symmetrically arranged about the center point of the booster pipe, and the center points of the two intake branch pipes are on the same horizontal line.

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