Gas purification pressure swing adsorption mechanism

Abstract

The invention discloses a gas purification pressure swing adsorption mechanism, and particularly relates to the technical field of pressure swing adsorption, the gas purification pressure swing adsorption mechanism comprises a pressure swing adsorption box, a plurality of diversion pipes, a shunt pipe and a pressure swing adsorption expansion assembly; wherein the pressure swing adsorption expansion assembly comprises an injection pipe, a sliding frame, a two-way screw rod and a driving motor, and further comprises an expansion flow guide assembly and a flow detection assembly. Through the pressure swing adsorption expansion assembly, the pressure swing adsorption device has the advantages that the pressure swing adsorption area can be automatically adjusted according to the flow of purified gas, pressure swing adsorption is expanded, the pressure swing adsorption contact area is wider, high-flow purified gas can be quickly subjected to pressure swing adsorption, and the pressure swing adsorption efficiency is greatly improved; therefore, the problems that pressure swing adsorption is difficult to quickly carry out pressure swing adsorption on high-flow purified gas and the pressure swing adsorption efficiency is greatly reduced due to the fact that the pressure swing adsorption area is difficult to realize automatic adjustment adsorption according to the flow of the purified gas are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure swing adsorption, and more particularly to a gas purification pressure swing adsorption mechanism. Background Art

[0002] The principle of the pressure swing adsorption mechanism in gas purification is mainly based on the fact that the adsorption capacity of the same gas component on the adsorbent at different pressures is different. At higher pressures, the adsorbent can adsorb more gas molecules; while at low pressures, the adsorbed gas molecules will be desorbed from the adsorbent. By utilizing these two characteristics and controlling the rise and fall of pressure, the pressure swing adsorption operation of gas purification can be realized, so that the purification operation can be achieved during the pressure change process.

[0003] A search of existing public documents revealed that patent publication number CN116020238A discloses a gas purification device utilizing the principle of pressure swing adsorption (PSA). This technology allows for real-time air absorption during the PSA gas purification process. Gas leaks from the PSA purifier are absorbed via gas collection hoods at the upper and lower ends and a gas detection assembly located in the middle. The gas inhaled into the gas detection assembly is then detected by a gas sensor. When abnormalities are detected in the inhaled gas, an alarm is sounded, providing a quick reminder. However, this technology still presents the following issues.

[0004] During the pressure swing adsorption process of gas purification, although the impurities in the gas can be adsorbed by the adsorption material after pressurization, thereby achieving gas purification operation, the gas flow rate increases significantly during the pressure swing adsorption process, and the adsorption material is in a fixed position. In this way, it is difficult for the purified gas to achieve large-area contact and adsorption with the adsorption material, and the pressure swing adsorption area is difficult to automatically adjust the adsorption according to the size of the purified gas flow rate. This makes it difficult to quickly perform pressure swing adsorption on large-flow purified gas, and the pressure swing adsorption efficiency is greatly reduced. Therefore, a gas purification pressure swing adsorption mechanism is needed. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a gas purification pressure swing adsorption mechanism, comprising a pressure swing adsorption box, a plurality of guide tubes and a diversion tube, wherein the plurality of guide tubes are fixedly connected to one side of the pressure swing adsorption box, the diversion tube is arranged at one end of the guide tube, the plurality of guide tubes are fixedly connected to the diversion tube, and a pressure swing adsorption expansion component is provided on one side of the diversion tube; the pressure swing adsorption expansion component includes an injection pipe fixedly arranged on one side of the diversion tube, and the inner wall of the pressure swing adsorption box is fixedly connected to a sliding frame, the inner wall of the sliding frame is rotatably connected to a bidirectional screw, and the inner wall of the sliding frame is A driving motor is fixedly installed on the side; the driving motor is used to drive the bidirectional screw to rotate, and the two threads on the outer wall of the bidirectional screw are opposite and symmetrical. The outer wall of the bidirectional screw is threadedly connected to two socket blocks, and the upper surface of each socket block is fixedly connected to a connecting strip, and one end of each connecting strip is fixedly connected to a frame strip; one side of the two frame strips is fixedly connected to a molecular sieve adsorption slot plate, and the two molecular sieve adsorption slot plates are plugged in, and a distance sensor is fixedly installed on one side of one of the frame strips; the outer wall of the injection pipe is provided with an extended guide assembly; one end of the injection pipe is provided with a flow detection assembly.

[0006] Preferably, both sleeve blocks are slidably connected to the slide frame, and the outer wall of the sleeve block and the inner wall of the slide frame are smooth surfaces; the output end of the drive motor is fixedly connected to the bidirectional screw. Both the frame bars are slidably connected to the pressure swing adsorption box, and both the molecular sieve adsorption slot plates are slidably connected to the pressure swing adsorption box. A controller is mounted on the upper surface of the pressure swing adsorption box and is fixedly connected to the pressure swing adsorption box. A pressure sensor is installed on one side of the controller and is fixedly connected to the pressure swing adsorption box.

[0007] When this technology is in use, the drive motor rotates the bidirectional screw, which drives the two socket blocks away from each other under the force of the thread transmission. The connecting bar causes the frame bar to shift rightward. The frame bar shifts rightward along the inner wall of the PSA chamber, simultaneously driving the molecular sieve adsorption trough plate to the right and the other molecular sieve adsorption trough plate to the left. The two molecular sieve adsorption trough plates can be staggered and deployed. When the distance sensor contacts the trough body on the right side of the PSA chamber inner wall, the two molecular sieve adsorption trough plates can be expanded and spread flat inside the PSA chamber, achieving large-scale expansion and filling of the PSA chamber interior.

[0008] Preferably, the expanded diversion assembly includes two branch valves fixedly mounted 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 one side of the dispersion pipe is fixedly connected to multiple branch pipes, each of which is fixedly connected to the pressure swing adsorption tank; the other side of the pressure swing adsorption tank is fixedly connected to multiple external discharge pipes, one end of each external discharge pipe is provided with an external discharge manifold, and each of the multiple external discharge pipes is fixedly connected to the external discharge manifold, one side of the external discharge manifold is fixedly connected to an external discharge valve, and one end of each external discharge valve is threadedly connected to an external discharge branch pipe; both sides of the outer wall of the external discharge branch pipe are fixedly connected to a discharge valve, one end of each discharge valve is threadedly connected to a branch inlet pipe, and one end of the branch inlet pipe is fixedly mounted with a connected diversion manifold, and one side of the diversion manifold is fixedly connected to multiple dispersion discharge pipes, each of which is fixedly connected to the pressure swing adsorption tank. The two branch valves are symmetrically arranged about the injection pipe, and the cross-section of each of the two branch air inlet pipes is L-shaped. The plurality of dispersed drainage pipes are arranged in equidistant order from front to back, and the two outlet valves are symmetrically arranged about the outer drainage branch pipe; the inner walls of the two branch inlet pipes are both smooth surfaces.

[0009] When using this technology, the controller opens the two branch valves, and the high-flow purified gas inside the injection pipe is diverted along the two branch valves and then diverted to multiple branch pipes through the branch air inlet pipe. The high-flow purified gas passes through multiple guide pipes and multiple branch pipes, and can be adsorbed on a large scale with the extended surface of the two molecular sieve adsorption slots. The adsorbed high-flow purified gas is diverted along multiple external pipes through the external discharge collection pipe, and then along multiple dispersed pipes to achieve large-scale diversion to the diversion collection pipe, and then diverted by the branch injection pipe to the outlet valve, and then collected along the outlet valve to the external discharge 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, one end of the main valve is fixedly mounted to a connected booster fan, and 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, intake valves are fixedly mounted on both sides of the outer wall of the booster pipe, and one end of each intake valve is threadedly connected to an intake branch pipe. The booster fan is used to pressurize the gas, and the center point of the intake main pipe is on the same horizontal line as the center point of the injection pipe. The two intake valves are symmetrically arranged about the center point of the booster pipe, and the center points of the two intake branches are on the same horizontal line.

[0011] The technology is used, the flow of the purified gas is detected by the gas flow meter, when the controller needs large flow to process the purified gas, the two air inlet valves are opened by the controller. The purified gas enters the two air inlet valves along the two air inlet branches, the large flow purified gas enters the gas flow meter along the main valve, when the flow value detected by the gas flow meter exceeds the flow value set by the controller, the driving motor is immediately started by the controller.

[0012] The technical effects and advantages of the present application are as follows: 1. The present application adopts a pressure swing adsorption expansion assembly, a driving motor drives a bidirectional screw to rotate, the bidirectional screw drives two sleeve blocks to move away from each other under the action of screw transmission force, the sleeve blocks drive the connection strips to move right, the other sleeve block drives the other connection strip to move left, the frame strip moves right along the inner wall of the pressure swing adsorption tank, the frame strip drives the molecular sieve adsorption groove plate to move right, the other molecular sieve adsorption groove plate moves left, the two molecular sieve adsorption groove plates can be cross-dialed and expanded, the distance sensor contacts the groove in the right position of the inner wall of the pressure swing adsorption tank, the large-area adsorption expansion of the excess space on both sides of the pressure swing adsorption tank is realized, the pressure swing adsorption area can be automatically adjusted according to the flow of the large flow purified gas, the pressure swing adsorption is expanded, the contact area of the pressure swing adsorption is wider, so that the large flow purified gas can be quickly subjected to pressure swing adsorption, and the pressure swing adsorption efficiency is greatly improved.

[0013] 2. The present application expands the flow guide assembly, when the large flow purified gas flow is detected, the two branch valves are opened by the controller, the large flow purified gas in the injection pipe is divided into two parts along the two branch valves, and is divided into multiple branch pipes through the branch air inlet pipe, so as to enter the pressure swing adsorption tank through the multiple branch pipes. The large flow purified gas can be in large-area contact adsorption with the expanded surfaces of the two molecular sieve adsorption groove plates through the multiple flow guide pipes and the multiple branch pipes, the large flow purified gas after adsorption is guided into the flow guide collection pipe through the multiple dispersed exhaust pipes, the pressure swing adsorption area can be automatically adjusted according to the flow of the large flow purified gas, the large flow purified gas is uniformly divided into air inlet and air outlet in a large area, and the pressure swing adsorption efficiency of the purified gas is greatly improved.

[0014] 3. The present application adopts a flow detection assembly, the flow of the purified gas is detected by the gas flow meter, when the controller needs large flow to process the purified gas, the two air inlet valves are opened by the controller, the purified gas on both sides enters the two air inlet valves along the two air inlet branches, when the flow value detected by the gas flow meter exceeds the flow value set by the controller, the driving motor is immediately started by the controller, so that the large flow purified gas can be quickly subjected to pressure swing adsorption, and the adsorption efficiency is greatly improved.

[0015] According to the mutual influence of the above-mentioned multiple effects, the purified gases on both sides are first allowed to enter the two intake valves along the two intake branches respectively, and the flow value detected by the gas flow meter exceeds the flow value set by the controller. Then, the two molecular sieve adsorption slots can be cross-staggered and expanded to achieve large-area adsorption expansion of the excess space on both sides of the pressure swing adsorption box. Finally, multiple guide pipes and multiple branches, large-flow purified gas can be contacted and adsorbed with the extended surfaces of the two molecular sieve adsorption slots over a large area, and diverted to the guide collection pipe over a large area along multiple dispersed pipes. In summary, the pressure swing adsorption area can be automatically adjusted according to the flow size of the large-flow purified gas to expand the pressure swing adsorption. The pressure swing adsorption contact area is wider, so that the large-flow purified gas can be quickly pressure-adsorbed, and the pressure swing adsorption efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the gas purification pressure swing adsorption mechanism of the present invention.

[0017] Figure 2 It is a schematic diagram of the partial structure of the pressure swing adsorption box in a cross-section viewed from above according to the present invention.

[0018] Figure 3 It is a schematic diagram of the partial structure of the cross section of the connection between the socket block and the connecting strip of the present invention.

[0019] Figure 4 This is a schematic diagram of the partial structure of the connection between the drive motor and the slide frame of the present invention when viewed from above.

[0020] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Figure 6 This is a schematic diagram of the partial structure of the connection between the connecting strip and the frame strip of the present invention from a top view.

[0022] Figure 7 It is a schematic diagram of the vertical cross-section structure of the gas purification pressure swing adsorption mechanism of the present invention.

[0023] Figure 8 This is a schematic diagram of the partial structure of the connection between the pressure swing adsorption box and the controller of the present invention, viewed from above.

[0024] Figure 9 This is a schematic diagram of a partial structure of the flow detection component of the present invention from a front view.

[0025] The accompanying drawings are marked as follows: 1. Pressure swing adsorption box; 2. Guide pipe; 3. Diverter pipe; 4. Injection pipe; 5. Slide frame; 6. Bidirectional screw; 7. Drive motor; 8. Socket block; 9. Connecting strip; 10. Frame strip; 11. Molecular sieve adsorption slot plate; 12. Distance sensor; 13. Controller; 14. Pressure sensor; 15. Branch valve; 16. Branch air intake pipe; 17. Dispersion pipe; 18. Branch pipe; 19. External discharge pipe; 20. External discharge collection pipe; 21. External discharge valve; 22. External discharge branch pipe; 23. Export valve; 24. Branch injection pipe; 25. Guide collection pipe; 26. Dispersion discharge pipe; 27. Gas flow meter; 28. Main valve; 29. ​​Booster fan; 30. Booster pipe; 31. Intake main pipe; 32. Intake valve; 33. Intake branch pipe. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] As attached Figure 1-9 A gas purification pressure swing adsorption mechanism is shown, which is provided with a pressure swing adsorption expansion component, an extended flow guide component, and a flow detection component. The arrangement of each component enables the pressure swing adsorption area to be automatically adjusted according to the flow size of the large-flow purified gas, and to perform expanded pressure swing adsorption. The pressure swing adsorption contact area is wider, so that the large-flow purified gas can be quickly pressure-adsorbed, and the pressure swing adsorption efficiency is greatly improved. The specific structural arrangement of each component is as follows.

[0028] In this embodiment, as shown in the attached Figure 1-7As shown, multiple flow guide pipes 2 are fixedly connected to one side of the pressure swing adsorption box 1, and the diversion pipe 3 is arranged at one end of the flow guide pipe 2. Multiple flow guide pipes 2 are fixedly connected to the diversion pipe 3, and a pressure swing adsorption expansion component is provided on one side of the diversion pipe 3; the pressure swing adsorption expansion component includes an injection pipe 4 fixedly arranged on one side of the diversion pipe 3, and the inner wall of the pressure swing adsorption box 1 is fixedly connected to a sliding frame 5, the inner wall of the sliding frame 5 is rotatably connected to a bidirectional screw 6, 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, and the bidirectional screw 6 is rotated. The two threads on the outer wall of the screw 6 are opposite and symmetrical. The outer wall of the bidirectional screw 6 is threadedly connected to two socket blocks 8. The upper surface of each socket block 8 is fixedly connected to a connecting strip 9, and one end of each connecting strip 9 is fixedly connected to a frame strip 10; one side of the two frame strips 10 is fixedly connected to a molecular sieve adsorption slot plate 11, which is inserted between the two molecular sieve adsorption slot plates 11, and a distance sensor 12 is fixedly installed on one side of one of the frame strips 10; the outer wall of the injection pipe 4 is provided with an extended guide assembly; one end of the injection pipe 4 is provided with a flow detection assembly.

[0029] In this embodiment, as shown in the attached Figure 1-8 As shown, a controller 13 is installed on the upper surface of the pressure swing adsorption box 1, and 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, and the pressure sensor 14 is fixedly plugged into 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 exhaust valve 21 is opened through the controller 13.

[0030] In this embodiment, as shown in the attached Figure 8 As shown, the extended diversion assembly includes two branch valves 15 fixedly arranged on the outer wall of the injection pipe 4; one end of each branch valve 15 is threadedly connected to a branch air intake pipe 16, one end of the branch air intake pipe 16 is fixedly connected to a dispersion pipe 17, and a plurality of branch pipes 18 are fixedly connected on one side of the dispersion pipe 17, and the plurality of branch pipes 18 are fixedly connected to the pressure swing adsorption box 1; the other side of the pressure swing adsorption box 1 is fixedly connected to a plurality of external exhaust pipes 19, and an external exhaust collecting pipe 20 is provided at one end of the external exhaust pipe 19.

[0031] Multiple external pipes 19 are fixedly connected to an external manifold 20. An external valve 21 is fixedly connected to one side of the external manifold 20, and one end of the external valve 21 is threadedly connected to an external branch pipe 22. A discharge valve 23 is fixedly connected to each side of the outer wall of the external branch pipe 22. One end of the discharge valve 23 is threadedly connected to a branch inlet pipe 24. A connected diversion manifold 25 is fixedly installed at one end of the branch inlet pipe 24. One side of the diversion manifold 25 is fixedly connected to multiple distributed pipes 26, each of which is fixedly connected to the pressure swing adsorption tank 1. The two branch valves 15 are symmetrically arranged about the inlet pipe 4, and the cross-sections of the two branch inlet pipes 16 are both L-shaped. The multiple distributed pipes 26 are equidistantly arranged from front to back, and the two discharge valves 23 are symmetrically arranged about the external branch pipe 22. The inner walls of the two branch inlet pipes 24 are both smooth.

[0032] In this embodiment, as shown in the attached Figure 9 As shown, the flow detection assembly includes a gas flowmeter 27 fixedly mounted at one end of the injection pipe 4; one end of the gas flowmeter 27 is threadedly connected to a main valve 28, and one end of the main valve 28 is fixedly mounted to a connected booster fan 29. 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 intake main pipe 31, and intake valves 32 are fixedly mounted on both sides of the outer wall of the booster pipe 30. One end of each intake valve 32 is threadedly connected to an intake branch pipe 33. The booster fan 29 is used to pressurize the gas. The center point of the intake main pipe 31 is co-level with the center point of the injection pipe 4. The two intake valves 32 are symmetrically arranged about the center point of the booster pipe 30, and the centers of the two intake branch pipes 33 are co-level.

[0033] The working principle of the gas purification pressure swing adsorption mechanism of this embodiment is as follows: First, when performing pressure swing adsorption, the present invention connects the air intake main pipe 31 to the purified gas delivery pipe, and the other two air intake branches 33 are connected to the other two purified gas delivery pipes respectively. The purified gas is delivered to the boost pipe 30 through the air intake main pipe 31, and the boost blower 29 is started to open the main valve 28 and close the exhaust valve 21. In this way, the purified gas enters the gas flow meter 27 along the main valve 28, is poured into the injection pipe 4 through the gas flow meter 27, is poured into the diversion pipe 3 from the injection pipe 4, is diverted into the multiple guide pipes 2 by the diversion pipe 3, and is poured into the interior of the pressure swing adsorption box 1 along the multiple guide pipes 2. The purified gas is limited on both sides by two molecular sieve adsorption slot plates 11, so that the purified gas enters the interior of the pressure swing adsorption box 1, thereby achieving pressure increase inside the pressure swing adsorption box 1.

[0034] The pressure inside the pressure swing adsorption tank 1 is sensed by the pressure sensor 14. When the pressure value sensed by the pressure sensor 14 is the same as the pressure value set by the controller 13, the controller 13 opens the discharge valve 21, allowing the purified gas to pass through the two molecular sieve adsorption slots 11 for pressure swing adsorption, adsorbing and removing impurity gases, thereby achieving excellent purification of the purified gas after pressure swing adsorption. The purified gas is poured into the discharge collection pipe 20 along multiple discharge pipes 19, and then into the discharge valve 21 through the discharge collection pipe 20. After opening the discharge valve 21, the purified gas can be transported to the storage tank.

[0035] Secondly, when the present invention detects gas flow, the flow of the purified gas is detected through the gas flow meter 27. When the controller 13 requires a large flow to process the purified gas, the two intake valves 32 are opened by the controller 13. The purified gas on both sides enters the two intake valves 32 along the two intake branches 33 respectively, and is collected into the boost pipe 30 through the two intake valves 32. Thus, the large flow of purified gas enters the gas flow meter 27 along the main valve 28. When the flow value detected by the gas flow meter 27 exceeds the flow value set by the controller 13, the drive motor 7 is immediately started by the controller 13, which can realize the rapid flow metering of the large flow of purified gas, and achieve a fast response to realize the driving operation of the drive motor 7.

[0036] Then, when the present invention performs pressure swing adsorption expansion, the drive motor 7 drives the bidirectional screw 6 to rotate. The bidirectional screw 6 drives the two socket blocks 8 to move away from each other under the action of the thread transmission force. The socket block 8 drives the connecting bar 9 to move right, and the other socket block 8 drives the other connecting bar 9 to move left. The connecting bar 9 causes the frame bar 10 to move right. The frame bar 10 moves right along the inner wall of the pressure swing adsorption box 1. At the same time, the frame bar 10 drives the molecular sieve adsorption slot plate 11 to move right, and the other molecular sieve adsorption slot plate 11 to move left. The two molecular sieve adsorption slot plates 11 can be cross-staggered and expanded. When the frame bar 10 drives the distance sensor 12 to move right, the distance sensor 12 contacts the slot body at the right position of the inner wall of the pressure swing adsorption box 1, and the two molecular sieve adsorption slot plates 11 can be expanded and spread out inside the pressure swing adsorption box 1. In this way, large-scale adsorption expansion is achieved on the excess space on both sides of the interior of the pressure swing adsorption box 1, thereby achieving large-scale expansion and filling into the interior of the pressure swing adsorption box 1.

[0037] Finally, when the present invention performs expanded diversion, the two branch valves 15 are opened through the controller 13, and the large flow of purified gas inside the injection pipe 4 is diverted along the two branch valves 15. The branch valve 15 diverts the gas into the branch air inlet pipe 16, and then diverts the gas into multiple branch pipes 18 through the branch air inlet pipe 16, and then enters the pressure swing adsorption box 1 through multiple branch pipes 18. In this way, the large flow of purified gas passes through multiple diversion pipes 2 and multiple branch pipes 18, and can be contacted and adsorbed with the expanded surface of the two molecular sieve adsorption slot plates 11 over a large area.

[0038] After adsorption, the large flow of purified gas flows along multiple external discharge pipes 19 through the external discharge collection pipe 20 for diversion, and then flows through the external discharge collection pipe 20 and the external discharge valve 21 to the external discharge branch pipe 22. Then, the large flow of purified gas flows along multiple dispersed discharge pipes 26 to achieve large-scale diversion to the diversion collection pipe 25, and then flows through the diversion collection pipe 25 to the branch inlet pipe 24, and then flows through the branch inlet pipe 24 to the outlet valve 23, and then flows along the outlet valve 23 to the external discharge branch pipe 22 for discharge and storage. In this way, the large flow of purified gas can be evenly diverted to the intake and outlet over a large area, so that the pressure swing adsorption flow area is wider and the pressure swing adsorption efficiency of the purified gas is greatly improved.

[0039] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0040] The above are only 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 in the scope of protection of the present invention.

Claims

1. A gas purification pressure swing adsorption mechanism, comprising a pressure swing adsorption box (1), a plurality of flow guide tubes (2) and a diversion tube (3), wherein the plurality of flow guide tubes (2) are fixedly connected to one side of the pressure swing adsorption box (1), the diversion tube (3) is arranged at one end of the flow guide tube (2), and the plurality of flow guide tubes (2) are fixedly connected to the diversion tube (3), characterized in that: A pressure swing adsorption expansion component is provided on one side of the diversion pipe (3); The pressure swing adsorption expansion assembly includes an injection pipe (4) fixedly arranged on one side of the diversion pipe (3), and the inner wall of the pressure swing adsorption box (1) is fixedly connected to a sliding frame (5), the inner wall of the sliding frame (5) is rotatably connected to a bidirectional screw (6), and a driving motor (7) is fixedly installed on one side of the inner wall of the sliding frame (5); The driving motor (7) is used to drive the bidirectional screw (6) to rotate. The two threads on the outer wall of the bidirectional screw (6) are opposite and symmetrical. The outer wall of the bidirectional screw (6) is threadedly connected to two socket blocks (8). The upper surface of each socket block (8) is fixedly connected to a connecting strip (9), and one end of each connecting strip (9) is fixedly connected to a frame strip (10). One side of each of the two frame bars (10) is fixedly connected with a molecular sieve adsorption slot plate (11), the two molecular sieve adsorption slot plates (11) are plugged in between, and a distance sensor (12) is fixedly installed on one side of one of the frame bars (10); The outer wall of the injection pipe (4) is provided with an extended flow guide component; One end of the injection pipe (4) is provided with a flow detection component.

2. A gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The two sleeve blocks (8) are both slidably connected to the slide frame (5), and the outer wall of the sleeve block (8) and the inner wall of the slide frame (5) are both smooth surfaces; The output end of the driving motor (7) is fixedly connected to the bidirectional screw (6).

3. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The two frame bars (10) are both slidably connected to the pressure swing adsorption box (1), and the two molecular sieve adsorption slot plates (11) are both slidably connected to the pressure swing adsorption box (1).

4. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: A controller (13) is installed on the upper surface of the pressure swing adsorption box (1), and 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), and the pressure sensor (14) is fixedly plugged into the pressure swing adsorption box (1).

5. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The extended diversion assembly comprises two branch valves (15) fixedly arranged on the outer wall of the injection pipe (4); One end of each branch valve (15) is threadedly connected to a branch air intake pipe (16), one end of the branch air intake pipe (16) is fixedly connected to a dispersion pipe (17), and one side of the dispersion pipe (17) is fixedly connected to a plurality of branch pipes (18), and the plurality of branch pipes (18) are all fixedly connected to the pressure swing adsorption box (1); The other side of the pressure swing adsorption box (1) is fixedly connected to a plurality of external discharge pipes (19), an external discharge collecting pipe (20) is provided at one end of the external discharge pipe (19), the plurality of external discharge pipes (19) are fixedly connected to the external discharge collecting pipe (20), one side of the external discharge collecting pipe (20) is fixedly connected to an external discharge valve (21), and one end of the external discharge valve (21) is threadedly connected to an external discharge branch pipe (22); Both sides of the outer wall of the outer discharge branch pipe (22) are fixedly connected with a discharge valve (23), one end of the discharge valve (23) is threadedly connected with a branch inlet pipe (24), and a connected diversion collection pipe (25) is fixedly installed at one end of the branch inlet pipe (24), and one side of the diversion collection pipe (25) is fixedly connected with a plurality of dispersed discharge pipes (26), and the plurality of dispersed discharge pipes (26) are fixedly connected with the pressure swing adsorption box (1).

6. The gas purification pressure swing adsorption mechanism according to claim 5, characterized in that: The two branch valves (15) are symmetrically arranged with respect to the injection pipe (4), and the cross-sectional shapes of the two branch air inlet pipes (16) are both L-shaped.

7. The gas purification pressure swing adsorption mechanism according to claim 5, characterized in that: The plurality of dispersed pipes (26) are arranged in equal intervals from front to back, and the two outlet valves (23) are symmetrically arranged with respect to the external branch pipe (22); The inner walls of the two branch infusion pipes (24) are both smooth.

8. The gas purification pressure swing adsorption mechanism according to claim 1, characterized in that: The flow detection assembly includes a gas flow meter (27) fixedly arranged at one end of the injection pipe (4); One end of the gas flow meter (27) is threadedly connected to a main valve (28), one end of the main valve (28) is fixedly mounted with a connected booster fan (29), and the input end of the booster fan (29) is fixedly connected to a booster pipe (30); One end of the boost pipe (30) is fixedly connected to an intake main pipe (31), and intake valves (32) are fixedly installed on both sides of the outer wall of the boost pipe (30), and one end of each intake valve (32) is threadedly connected to an intake branch pipe (33).

9. The gas purification pressure swing adsorption mechanism according to claim 8, characterized in that: The booster fan (29) is used to boost the gas, and the center point of the air intake main pipe (31) and the center point of the injection pipe (4) are on the same horizontal line.

10. The gas purification pressure swing adsorption mechanism according to claim 8, characterized in that: The two intake valves (32) are symmetrically arranged about the center point of the boost pipe (30), and the center points of the two intake branch pipes (33) are on the same horizontal line.

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