Molecular sieve rotary wheel purification system

Abstract

The present invention discloses a molecular sieve wheel purification system, which includes: a desorption air duct; a wheel core vertically arranged in the air flow direction of the desorption air duct; and an adjustment component arranged in the desorption air duct. The adjustment component includes a first driving part, a push rod and a grille part. The grille part can expand and contract to adjust the gas flow area. The first driving part includes a pressure control component. The molecular sieve wheel purification system can cooperate with the air pressure in the desorption air duct to form a linkage cooperation between the push rod and the grille part.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection devices, and more specifically, to a molecular sieve rotary wheel purification system. Background Art

[0002] The molecular sieve rotary wheel purification system is used for treating waste gas. The system includes a wheel core and a housing. The wheel core has a disc-shaped structure. The housing is divided into three mutually sealed fan-shaped regions. The three fan-shaped regions are arranged along the diameter direction of the wheel core. The three fan-shaped regions are an adsorption region, a desorption region, and a cooling region respectively. Each region is provided with a pipeline connection port. The pipeline connection port of the desorption region is used to communicate with a desorption air duct, and the pipeline connection port of the adsorption region is used to communicate with an adsorption air duct to facilitate the gas to reach the corresponding region. The wheel core can rotate and is perpendicular to the air outlet sides of the adsorption air duct and the desorption air duct. At the same time, the waste gas with pollutants is sucked into the adsorption air duct by a fan. When passing through the wheel core, the pollutants in the waste gas are adsorbed in the wheel core. As the wheel core continues to rotate, when the wheel core carrying pollutants rotates from the adsorption region to the desorption region, the pollutants adsorbed on the wheel core are desorbed by the desorption gas in the desorption region. Thus, the wheel core can be recycled to repeat the above adsorption and desorption steps to achieve the purpose of purifying waste gas. The concentration of pollutants contained in the waste gas in the adsorption air duct determines the size of the air volume in the desorption air duct.

[0003] Due to the large fluctuations in the concentration of pollutants in the waste gas during actual use, in order to ensure that the concentration of the desorbed gas meets the requirements of subsequent processes, the air volume in the desorption air duct will also fluctuate greatly. When the air volume in the desorption air duct is small and the desorption air volume cannot reach the minimum value of the effective desorption air velocity, the wheel core cannot be effectively desorbed, thereby affecting the adsorption capacity of the wheel core.

[0004] In view of this, there is an urgent need to provide a technical solution to avoid the influence of the small air volume in the desorption air duct on the desorption effect of the wheel core, resulting in the inability to effectively desorb the wheel core, thereby reducing the adsorption capacity of the wheel core. Summary of the Invention

[0005] An object of the present invention is to provide a molecular sieve rotary wheel purification system, by arranging an adjustment component in the desorption air duct, it can effectively avoid the influence of the small air volume in the desorption air duct on the desorption effect of the wheel core, and significantly improve the adsorption capacity of the wheel core.

[0006] The present invention provides a molecular sieve rotary wheel purification system, which includes:

[0007] A desorption air duct;

[0008] A wheel core, vertically arranged in the air flow direction of the desorption air duct; and

[0009] Adjusting assembly, the adjusting assembly is arranged in the desorption air duct, the adjusting assembly includes a first driving part, a push rod and a grille part, the grille part can expand and contract deforming to adjust the gas flow area, the first driving part includes a pressure control assembly, and the molecular sieve rotor purification system can cooperate with the air pressure in the desorption air duct to form a linkage cooperation with the grille part through the push rod.

[0010] When using the molecular sieve rotor purification system of the embodiment of the present invention, in the actual use process, when the air volume of the desorption air duct is very low and cannot meet the minimum desorption gas velocity requirement of the wheel core, by arranging a pressure control assembly in the desorption air duct, the pressure control assembly can block the air duct when the air volume in the air duct is very low to form a pressure accumulation state until a high-pressure area and a low-pressure area are respectively formed on the front side and the rear side of the pressure control assembly. When the pressure difference between the high-pressure area and the low-pressure area reaches the set threshold value, the pressure control assembly opens, and the gas in the high-pressure area instantly enters the low-pressure area until the air pressures on both sides of the pressure control assembly are the same, and the pressure control assembly returns to its original position. When the pressure control assembly is used as the first driving part, during the movement of the pressure control assembly, it can drive the grille part to expand and contract deforming through the push rod linked to the grille part, thereby adjusting the gas flow area in the air duct, and further reducing or avoiding the situation that the small air volume of the desorption air duct affects the desorption effect of the wheel core, resulting in the inability of the wheel core to perform effective desorption, and thus reducing the adsorption capacity of the wheel core.

[0011] Through the following detailed description of the exemplary embodiments of the present specification with reference to the accompanying drawings, other features and advantages of the present specification will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the present specification, and together with the description are used to explain the principles of the present specification.

[0013] Figure 1 It is a schematic diagram of a partial structure when the sealing plate of the purification system is in the closed position in the embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of a partial structure when the sealing plate of the purification system is in the open position in the embodiment of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the limiting member of the purification system in the embodiment of the present invention.

[0016] Figure 4 It is a schematic diagram of the structure of the grille part of the purification system in the closed state of the present invention;

[0017] Figure 5 It is a schematic diagram of the structure of the grille part of the purification system in the open state of the present invention;

[0018] Figure 6Yes Figure 4 Side view.

[0019] Description of reference numerals:

[0020] 10. Adjusting assembly;

[0021] 1. Air duct; 11. Desorption area;

[0022] 2. Grille part; 21. Grille blade group; 22. Flexible shielding part; 23. Grille plate; 24. Slide groove;

[0023] 3. First driving part; 31. Sealing plate; 311a. High-pressure area; 311b. Low-pressure area; 32. Push rod; 321. Rod body; 322. Inclined rod; 33. First elastic member; 34. Towing rope;

[0024] 4. Second driving part; 41. Second elastic member; 42. Support plate;

[0025] 5. Limiting member; 51. Limiting block; 511. Guide inclined plane; 52. Support rod; 53. Limiting lever; 54. First arm; 55. Second arm;

[0026] 7. Wheel core;

[0027] 8. Fixed plate;

[0028] 9. Track plate. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0030] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0031] In one embodiment of the present application, refer to Figures 1-6 A molecular sieve rotor purification system is provided. The purification system includes a desorption air duct 1, a wheel core 7, and an adjusting assembly 10. The wheel core 7 is vertically arranged in the air flow direction of the desorption air duct 1. The adjusting assembly 10 is arranged in the desorption air duct 1. The adjusting assembly 10 includes a first driving part 3, a push rod 32, and a grille part 2. The grille part 2 can be telescopically deformed to adjust the gas flow area. The first driving part 3 includes a pressure control assembly. The molecular sieve rotor purification system can cooperate with the air pressure in the desorption air duct 1 to form a linkage cooperation with the push rod 32 and the grille part 2 through the push rod 32.

[0032] Specifically, the pressure control assembly is arranged in the desorption air duct 1 (hereinafter referred to as the air duct 1) and includes a sealing plate 31 and a first elastic member 33 connected to the sealing plate 31. The first elastic member 33 is arranged at Figure 1The position indicated by arrow A in the figure.

[0033] The closing plate 31 is movably connected to the pipe wall and can move between a closed position and an open position. When the closing plate 31 is in the closed position, the closing plate 31 is perpendicular to the air flow direction in the air duct 1, and the air flow in the air duct 1 flows from the front side to the rear side of the closing plate 31. The first elastic member 33 is used to drive the closing plate 31 to move to the closed position. When the closing plate 31 is in the closed position, the closing plate 31 blocks the air duct 1 to form a high-pressure area 311a on the front side of the closing plate 31, and a low-pressure area 311b is formed on the rear side of the closing plate 31. When the air pressure difference between the high-pressure area 311a and the low-pressure area 311b reaches a set value, the air pressure in the high-pressure area 311a pushes open the closing plate 31 to the open position.

[0034] For example, as Figure 1 shown, a fan (not shown in the figure) is further provided in the air duct 1. The fan is located on the front side of the closing plate 31, and the air flow generated by the fan can flow from the front side to the rear side of the closing plate 31 in the air duct 1.

[0035] In one example, referring to Figure 1 , one end of the first elastic member 33 is fixed to the pipe wall of the air duct 1, and the other end is fixed to the closing plate 31. When the closing plate 31 is pushed open, the closing plate 31 drives the first elastic member 33 to deform under the action of air pressure.

[0036] The first elastic member 33 includes a spring and a hinge structure. The hinge structure is used to support the closing plate 31, and the spring cooperates with the hinge structure to keep the closing plate 31 at a set angle. When the closing plate 31 changes from the closed state to the open state, the first elastic member 33 is compressed by the closing plate 31. After the closing plate 31 is opened, the air pressure on both sides of the closing plate 31 tends to be the same, and the closing plate 31 is driven by the compressed first elastic member 33 to move back to the closed position.

[0037] Optionally, the first elastic member 33 is arranged on the front side of the closing plate 31. In this way, when the closing plate 31 is opened, the closing plate 31 can move towards the direction close to the wheel core 7, and when the closing plate 31 is closed, the closing plate 31 moves away from the wheel core 7.

[0038] In one example, the pressure control assembly further includes a rotating shaft. The closing plate 31 is a plate-like structure. One side of the closing plate 31 is rotatably connected to the pipe wall through the rotating shaft, and the closing plate 31 can rotate around the pipe wall under the action of air pressure to rotate between the open position and the closed position. It can be understood that the closing plate 31 can also be of other structures. For example, the closing plate 31 has a conical structure. When the conical closing plate 31 moves along the axial direction of the air duct 1, a gap can be formed between the closing plate 31 and the pipe wall, and the air flow in the high-pressure area 311a can enter the low-pressure area 311b through this gap.

[0039] In a specific example, the air volume required to reach the minimum desorption air velocity value that can reach the wheel core 7 can be calculated based on the air flow area of the air duct 1, and the set air pressure threshold value inside the air duct 1 can be calculated based on this air volume. Furthermore, the pressure required to open the sealing plate 31 can be calculated based on the set air pressure threshold value, so that when the air pressure in the air duct 1 reaches the set air pressure threshold value, the sealing plate 31 is pushed open by the air pressure.

[0040] It can be understood that in this embodiment, only one method for calculating the set air pressure threshold value inside the air duct 1 is given, but it is not limited to this method.

[0041] During actual use, when the air volume of the air duct 1 is very low and cannot meet the minimum desorption air velocity requirement of the wheel core 7, by arranging a pressure control component inside the air duct 1, the sealing plate 31 of the pressure control component can move between an open position and a closed position. Thus, when the air volume inside the air duct 1 is very low, the sealing plate 31 is in the closed position under the action of the first elastic member 33, and then the air duct 1 is blocked to form a pressure buildup state until a high-pressure area 311a and a low-pressure area 311b are respectively formed on the front side and the rear side of the sealing plate 31. When the pressure difference between the high-pressure area 311a and the low-pressure area 311b reaches the set threshold value, the sealing plate 31 moves from the closed position to the open position, and the sealing plate 31 compresses the first elastic member 33. After the sealing plate 31 is opened, the gas in the high-pressure area 311a instantly enters the low-pressure area 311b, adjusting the air velocity inside the air duct 1, and for the first time increasing the air velocity of the desorption air flow so that the air velocity inside the air duct 1 meets the desorption air velocity requirement.

[0042] Meanwhile, when the pressure tends to balance, the sealing plate 31 is driven by the first elastic member 33 to move along the closing direction to the closed position to build up pressure again. Thus, it can effectively avoid the situation that the air volume inside the air duct 1 is small and cannot effectively desorb the wheel core 7, and the air volume inside the air duct 1 is adjusted by the pressure control component, thereby significantly improving the desorption effect of the wheel core 7 at a low desorption air volume.

[0043] Optionally, in order to simplify the structure of the sealing plate 31 and avoid interference between the sealing plate 31 and the air duct 1 during the opening and closing processes, the sealing plate 31 is arranged along the radial direction of the air duct 1, and the shape of the sealing plate 31 is adapted to the radial cross-section of the air duct 1.

[0044] In an example, in order to improve the sealing performance of the sealing plate 31 in the closed position, a groove (not shown in the figure) is formed on the periphery of the sealing plate 31, and a sealing ring is embedded in the groove.

[0045] The present invention provides an adjustment component 10, which is arranged inside the air duct 1. The adjustment component 10 includes a grille part 2, a push rod 32, and a first driving part 3. The first driving part 3 includes the above-mentioned pressure control component. The sealing plate 31 forms a linkage cooperation with the grille part 2 through the push rod 32.

[0046] In the present invention, a purification system is also provided. The purification system includes an air duct 1, a wheel core 7 vertically disposed in the air flow direction of the air duct 1, and the above-described adjustment assembly 10.

[0047] Specifically, referring to Figure 1 and Figure 2 and Figure 4 and Figure 5 , the grille portion 2 can be telescopically deformed to adjust the air flow area in the air duct 1.

[0048] Referring to Figure 1 and Figure 2 , the sealing plate 31 is connected to the grille portion 2 by a push rod 32. The push rod 32 is located on the side where the opening position of the sealing plate 31 is located. The push rod 32 is connected between the sealing plate 31 and the grille portion 2. When the sealing plate 31 moves between the opening position and the closing position, the sealing plate 31 can cooperate with the push rod 32 to drive the grille portion 2 to be telescopically deformed.

[0049] For example, the push rod 32 is generally arranged along the axial direction of the air duct 1. One end of the push rod 32 is connected to the sealing plate 31, and the other end is connected to the grille portion 2. When the push rod 32 moves towards the grille portion 2, the grille portion 2 is pushed open by the push rod 32, and the grille portion 2 expands. When the push rod 32 moves away from the grille portion 2, the grille portion 2 contracts.

[0050] Through the adjustment assembly 10 of the present invention, the air flow area in the air duct 1 is adjusted by the telescopically deformable grille portion 2. Thus, when the air volume in the air duct 1 is low and insufficient to form the air velocity required for desorption, the grille portion 2 contracts to reduce the air flow area in the air duct 1, thereby increasing the air velocity for the second time to meet the range of desorption air velocity.

[0051] In addition, when the air volume in the air duct 1 is very small, the sealing plate 31 can be in the closed position, thereby blocking the air duct 1 to form a pressure difference on both sides of the sealing plate 31. When the pressure difference reaches a certain threshold, the sealing plate 31 is pushed open by the pressure and cooperates with the push rod 32. The push rod 32 moves towards the grille portion 2 to push open the grille portion 2. When the pressure is large, the opening degree of the sealing plate 31 is larger, and thus the push rod 32 can form a greater displacement to increase the opening degree of the grille portion 2. Thus, the grille portion 2 can be driven to deform to adjust the air flow area of the air duct 1 through the mechanical cooperation of the sealing plate 31 and the push rod 32, thereby avoiding driving the grille portion 2 to deform by an electrical control method, without the need to additionally install electrical equipment or increase the laying of electrical wiring.

[0052] Meanwhile, by closing the air duct 1 with the sealing plate 31 and building up pressure until the set air pressure difference is reached, the sealing plate 31 is pushed open to relieve pressure, and when the pressure tends to balance, the sealing plate 31 closes again, which improves the sensitivity of the telescopic deformation of the grille part 2 and avoids the incomplete detachment of the wheel core 7 caused by the time difference of signal transmission when using electrical control.

[0053] In one example, the adjusting assembly 10 further includes a second driving part 4. The second driving part 4 is in transmission connection with the push rod 32 and can cooperate with the sealing plate 31. When the sealing plate 31 is in the closed position, the second driving part 4 is in a locked state. When the sealing plate 31 moves from the closed position to the open position, the first driving part 3 can unlock the second driving part 4, and the second driving part 4 can drive the push rod 32 to drive the grille part 2 to undergo telescopic deformation. Among them, when the second driving part 4 is in the locked state, the sealing plate 31 and the push rod 32 do not form a cooperative state. When the second driving part 4 is in the unlocked state, the first driving part 3 cooperates with the second driving part 4 to drive the push rod 32 to move.

[0054] In a specific embodiment, the second driving part 4 includes a second elastic part 41. The second elastic part 41 includes a fixed end and a free end. The fixed end is fixedly arranged on the pipe wall, and the bottom end of the push rod 32 passes through the fixed end and is connected to the free end and the sealing plate 31.

[0055] As Figure 1 and Figure 2 shown, the fixed end of the second elastic part 41 is located between the bottom end and the top end of the push rod 32. The free end of the second elastic part 41 is connected to the bottom end of the push rod 32. The sealing plate 31 applies a pulling force to the free end of the second elastic part 41. When the sealing plate 31 moves in the closing direction, when the pulling force of the sealing plate 31 is greater than the elastic force of the second elastic part 41, the second elastic part 41 elongates and deforms, and the free end moves in a direction away from the fixed end, so that the free end drives the push rod 32 to move in a direction away from the grille part 2 to contract the grille part 2; when the sealing plate 31 moves in the opening direction, the pulling force of the sealing plate 31 is less than the elastic force of the second elastic part 41. Under the action of the elastic force of the second elastic part 41, the second elastic part 41 shortens, and the free end moves in a direction close to the fixed end, thereby driving the push rod 32 to move in a direction close to the grille part 2. Under the action of the push rod 32, the grille part 2 is pushed open. Thus, by setting the second elastic part 41, the telescopic deformation of the grille part 2 can be driven.

[0056] Optionally, the adjusting assembly 10 includes a fixing plate 8. The fixing plate 8 is arranged radially and fixed to the pipe wall. A through hole is opened in the thickness direction of the fixing plate 8, and the bottom end of the push rod 32 extends out of the through hole and is connected to the free end.

[0057] Optionally, in order to increase the connection strength between the free end of the second elastic member 41, the bottom end of the push rod 32, and the sealing plate 31, a supporting plate 42 is provided at the free end. The bottom end of the push rod 32 is connected to the supporting plate 42, and the sealing plate 31 is connected to the surface of the supporting plate 42 away from the free end. The first driving portion 3 further includes a traction rope 34. The sealing plate 31 is connected to the supporting plate 42 through the traction rope 34 and applies a pulling force to the supporting plate 42.

[0058] In one example, in order to lock the second elastic member 41, the adjusting assembly 10 further includes a limiting member 5 and a third driving portion connected to the limiting member 5. The third driving portion is used to drive the limiting member 5 to return to selectively form a locking fit with the supporting plate 42; when the sealing plate 31 moves from the closed position to the open position, the limiting member 5 can be toggled to disengage the limiting member 5 from the supporting plate 42. Thus, in the state where the sealing plate 31 is closed, the sealing plate 31 no longer applies a force to the supporting plate 42, and the supporting plate 42 is locked by the limiting member 5.

[0059] For example, the limiting member 5 includes a limiting block 51. When the sealing plate 31 moves from the open position to the closed position, the edge of the supporting plate 42 slides along the limiting block 51 to cooperate with the limiting block 51 in the locked state.

[0060] As Figure 3 shown, the limiting block 51 is configured with a guiding inclined surface 511. The supporting plate 42 slides along the guiding inclined surface 511 under the drive of the sealing plate 31 to cooperate with the limiting block 51. For example, the limiting block 51 is in the shape of a ratchet tooth. When the sealing plate 31 is gradually closed from the open position, the supporting plate 42 can be pulled down. When the supporting plate 42 moves downward, it can slide along the guiding inclined surface 511 and then be blocked by the slider to achieve the limiting fit between the supporting plate 42 and the limiting member 5.

[0061] For example, the limiting member 5 includes a support rod 52 and a limiting lever 53. The support rod 52 is fixedly arranged on the pipe wall. The middle part of the limiting lever 53 is rotatably connected to the support rod 52, and the limiting block 51 is arranged on the limiting lever 53; the third driving portion can drive the limiting lever 53 to rotate back to its original position.

[0062] In a specific example, referring to Figure 3 , the third driving portion includes a third elastic member. The third elastic member acts between the support rod 52 and the limiting lever 53. The third elastic member is used to make the limiting member 5 return to its original position to be able to cooperate with the supporting plate 42 in the locked state. The third elastic member is, for example, a torsion spring or other springs that can deform circumferentially. The second elastic member 41 can keep the limiting lever 53 in the initial position all the time. When the limiting lever 53 is in the initial position, the supporting plate 42 can slide along the limiting block 51 on the limiting lever 53 and form a locking fit.

[0063] For example, referring to Figure 3The limiting lever 53 includes a first force arm 54 and a second force arm 55, and the fulcrum formed by the support rod 52 is located between the first force arm 54 and the second force arm 55. One end of the second force arm 55 is capable of cooperating with the sealing plate 31, and a limiting block 51 is provided at the end of the first force arm 54. During the movement of the sealing plate 31, the second force arm 55 can be toggled, the second force arm 55 rotates around the support rod 52, and the second elastic member 41 is deformed. The first force arm 54 also rotates under the drive of the second force arm 55, so as to drive the limiting block 51 to disengage from the support plate 42. Then, under the action of the elastic reaction force of the third elastic member, the limiting lever 53 rotates in the reverse direction to return to its original position.

[0064] In one example, the molecular sieve rotor purification system further includes an orbital plate 9, and the sealing plate 31 can slide along the orbital plate 9. In order to avoid the situation that the inner pipe wall is damaged due to repeated friction between the sealing plate 31 and the inner pipe wall during the conversion between the closed state and the open state, the orbital plate 9 protrudes from the inner pipe wall. The orbital plate 9 fits with the edge of the sealing plate 31, and the cross-section of the orbital plate 9 in the air duct 1 is arc-shaped to be consistent with the movement track of the edge of the sealing plate 31.

[0065] The adopted orbital plate 9 can make the edge of the sealing plate 31 fit tightly with the orbital plate 9, thereby avoiding poor sealing between the sealing plate 31 and the inner pipe wall caused by the non-smooth inner pipe wall, and further improving the pressure-holding efficiency of the air duct 1 in the pressure-holding state. In addition, the situation that the edge of the sealing plate 31 repeatedly rubs against the inner pipe wall and damages the inner pipe wall is also avoided.

[0066] The specific working process of the pressure control assembly and the adjustment assembly 10 will be described below.

[0067] The first air volume

[0068] The first air volume means that when the air volume in the air duct 1 is very low and cannot meet the effective desorption air velocity of the wheel core 7, the sealing plate 31 is approximately in a horizontal state and closes the air duct 1, and the first elastic member 33 is in a state without deformation at this time.

[0069] The air flow in the air duct 1 is blocked. As the fan continues to work, the air pressure on the front side of the sealing plate 31 gradually increases to form a high-pressure area 311a, and the rear side of the sealing plate 31 is a low-pressure area 311b at this time.

[0070] When the air pressure difference between the high-pressure area 311a and the low-pressure area 311b reaches the set threshold value, the sealing plate 31 is pushed open by the air pressure in the high-pressure area 311a, so as to perform the first speed increase. At the same time, the sealing plate 31 drives the first elastic member 33 to deform.

[0071] While the sealing plate 31 is moving, the edge of the sealing plate 31 toggles the second force arm 55, and the second force arm 55 drives the first force arm 54 to rotate and drives the limiting block 51 to disengage from the support plate 42.

[0072] At this time, the second elastic member 41 connected to the push rod 32 resumes deformation and rebounds toward the side away from the sealing plate 31. Under the action of the second elastic member 41, the push rod 32 moves upward along the axis and pushes open the grille portion 2 to the first opening degree. At the same time, the air pressure in the high-pressure area 311a in the air duct 1 is instantly converted into kinetic energy, thereby realizing the second speed increase of the desorbed gas. The instantaneously high-speed gas passes through the grille, thereby realizing the desorption of the wheel core 7.

[0073] After the instant pressure relief, the air duct 1 returns to the state of low air volume and low air pressure. The air pressures on the front and rear sides of the sealing plate 31 tend to be the same, and the first elastic member 33 resumes deformation and drives the sealing plate 31 to rebound downward. The sealing plate 31 drives the support plate 42 to move downward together through the towing rope 34 until the support plate 42 contacts the guiding inclined surface 511 of the limiting block 51 and slides along the guiding inclined surface 511 to form a fit with the limiting block 51 under the action of the third elastic member. At this time, when the sealing plate 31 pulls down the support plate 42, the support plate 42 drives the second elastic member 41 to elongate and deform, so that the push rod 32 drives the grille portion 2 to contract and close the air duct 1. At this time, the sealing plate 31 is also in the closed state to perform the next round of pressure buildup until a pressure difference is formed on the front and rear sides of the sealing plate 31 and the above process is recycled.

[0074] Thus, when the air volume in the air duct 1 is the first air volume, the desorption gas velocity can be intermittently increased to the effective desorption gas velocity range, thereby effectively desorbing the wheel core 7.

[0075] Second air volume

[0076] The second air volume is greater than the first air volume and less than the third air volume. The second air volume means that although the air volume in the air duct 1 satisfies the effective desorption gas velocity of the wheel core 7, it does not reach the optimal desorption gas velocity.

[0077] At this time, the sealing plate 31 is pushed open by the air flow but does not reach the fully open state. The second elastic member 41 partially rebounds, but at this time the sealing plate 31 applies a pulling force to the support plate 42 through the towing rope 34, and then applies a pulling force to the second elastic member 41, so the second elastic member 41 cannot fully rebound. As a result, the push rod 32 can only push open the grille portion 2 to the second opening degree. The second opening degree is greater than the first opening degree but less than the maximum opening degree of the grille. At this time, the grille portion 2 is partially opened, exposing a small gap. The smaller air flow passes through the smaller gap, and the grille portion 2 also reduces the air inlet area of the air inlet hole, thereby performing a second air velocity adjustment on the air flow passing through the air duct 1 to keep the desorption air volume close to or nearly maintained near the optimal desorption gas velocity.

[0078] In addition, the air flow can also reach the surface of the wheel core 7 more evenly through the grille portion 2 to achieve uniform desorption.

[0079] Third air volume

[0080] The third air volume refers to the high air volume and large air flow in the air duct 1. When it is sufficient to meet the optimal desorption air velocity, the sealing plate 31 is completely pushed open, and the second elastic member 41 rebounds completely upward. At this time, the supporting plate 42 at the bottom of the second elastic member 41 is basically not affected by the pulling force of the sealing plate 31, and drives the push rod 32 to fully open the grille part 2. The gas that meets the optimal desorption air velocity directly passes through the grille part 2 and evenly reaches the wheel core 7 to perform uniform desorption on the wheel core 7.

[0081] The specific structure of the grille part 2 will be illustrated by way of example below.

[0082] Embodiment 1

[0083] As Figures 4-6 shown, the grille part 2 includes a grille vane group 21 slidably connected to the pipe wall through a chute 24 and a flexible shielding part 22. The grille vane group 21 can expand and contract in the horizontal direction under the action of the push rod 32, and the shielding part forms a follow-up with the grille vane group 21. When the grille vane group 21 opens, the grille vane group 21 squeezes the flexible shielding part 22. When the grille vane group 21 contracts and closes, the shielding part elongates to form a shield.

[0084] According to the molecular sieve rotary wheel purification system in this embodiment, by setting the shielding part, a shield can be formed in the space between the grille part 2 and the inner pipe wall to prevent gas from flowing out of the space between the inner pipe wall and the grille part 2 when the grille part 2 undergoes telescopic deformation.

[0085] Specifically, the grille part 2 includes a plurality of grille vane groups 21, and each grille vane group 21 includes a first rod part and a second rod part. The first rod part and the second rod part are hinged in the middle of the length direction to form a structure similar to an X shape. A plurality of grille vane groups 21 are arranged in sequence along the radial direction of the air duct 1, and the two ends of the first rod part and the second rod part of the plurality of grille vane groups 21 are correspondingly hinged. The grille vane group 21 can be opened to form an X-shaped structure under the action of an external force. It can also retract to a linear structure, at this time, the first rod part and the second rod part are stacked up and down in the axial direction of the air duct 1.

[0086] The push rod 32 has a Y-shaped structure, including a rod body 321 arranged vertically and two inclined rods 322 rotatably connected to the top end of the rod body 321. When the rod body 321 moves axially, it can drive the ends of the two inclined rods 322 away from the rod body 321 to move radially away from each other to expand the grille vane group 21.

[0087] When it is necessary to increase the air inlet area of the desorption gas, the rod body 321 moves towards the direction close to the grille vane group 21 under the action of the second elastic member 41, and the two inclined rods 322 drive the first rod part and the second rod part to move relatively to open from a linear structure to an X structure, so that the air flow through area in the air duct 1 increases.

[0088] When it is necessary to reduce the air inlet area of the desorbed gas, the rod body 321 moves in the opposite direction, so that each grille sheet group 21 is sequentially changed from an x-shaped structure to a linear structure. At the same time, the adjacent grille sheet groups 21 gradually approach until they finally fit together to radially cover the air duct 1.

[0089] Embodiment 2

[0090] As Figure 1 and Figure 2 shown, the grille part 2 includes a plurality of mutually hinged grille plates 23. The grille part 2 can contract and gather on the adsorption air duct 1 or expand and open from the adsorption air duct 1 under the drive of the push rod 32.

[0091] When the push rod 32 moves in the direction close to the grille plate 23, the push rod 32 drives the grille plate 23 to rotate relatively and gather, so as to at least partially block the air inlet of the air duct 1, thereby reducing the air flow area of the air duct 1 and further increasing the desorption wind speed. On the contrary, the push rod 32 can drive the grille plates 23 to rotate relative to each other and open into an approximate spherical shape to increase the air flow area.

[0092] Optionally, the push rod 32 is located on the central axis of the air duct 1, and the grille plate 23 connected to the push rod 32 is located at the central position of the grille part 2. The central position refers to the position where the central axis is located when the grille part 2 is in the open state. The push rod 32 located on the central axis can move up and down along the axis of the air duct 1, so that the force on the grille part 2 is more uniform.

[0093] Optionally, the molecular sieve rotor purification system includes a housing. At least part of the housing encloses a desorption area 11. The desorption area 11 is provided with a through hole, and the air duct 1 is connected to the through hole and communicates with the desorption area 11. The radial dimension of the desorption area 11 is larger than the radial dimension of the air duct 1. The grille part 2 is arranged at the position adjacent to the air duct 1 in the desorption area 11. When the grille part 2 opens into a spherical shape, the grille part 2 is located in the desorption area 11. In this way, the grille part 2 can extend into the desorption area 11, so that the desorption air flow can uniformly desorb the wheel core 7.

[0094] In this article, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A molecular sieve rotary wheel purification system, characterized in that, Comprising: Desorption air duct (1); Wheel core (7), vertically arranged in the air flow direction of the desorption air duct (1); And Adjustment assembly (10), the adjustment assembly (10) is arranged in the desorption air duct (1), the adjustment assembly (10) includes a first driving part (3), a push rod (32) and a grille part (2), the grille part (2) can be telescopically deformed to adjust the gas flow area, the first driving part (3) includes a pressure control assembly, and the molecular sieve wheel purification system can cooperate with the air pressure in the desorption air duct (1) to form a linkage with the grille part (2) through the push rod (32); The pressure control assembly includes a sealing plate (31), which is movably connected to the pipe wall of the desorption air duct (1) and can move between an open position and a closed position. When the sealing plate (31) is in the closed position, the sealing plate (31) is arranged crosswise to the air flow direction in the desorption air duct (1), and the air flow in the desorption air duct (1) flows from the front side to the rear side of the sealing plate (31); When the sealing plate (31) is in the closed position, the sealing plate (31) blocks the desorption air duct (1), a high-pressure area (311a) is formed on the front side of the sealing plate (31), and a low-pressure area (311b) is formed on the rear side of the sealing plate (31). When the air pressure difference between the high-pressure area (311a) and the low-pressure area (311b) reaches a set threshold value, the air pressure in the high-pressure area (311a) pushes the sealing plate (31) to the open position.

2. The molecular sieve rotary wheel purification system according to claim 1, wherein It also includes a first elastic member connected to the sealing plate (31) for driving the sealing plate (31) to move to the closed position.

3. The molecular sieve rotary wheel purification system according to claim 2, characterized in that, The sealing plate (31) is arranged along the radial direction of the desorption air duct (1), and the shape of the sealing plate (31) is adapted to the radial cross-section of the desorption air duct (1).

4. The molecular sieve rotor purification system according to claim 2, wherein It also includes a rotating shaft, and the sealing plate (31) is rotatably connected to the pipe wall through the rotating shaft.

5. The molecular sieve rotary wheel purification system according to claim 2, wherein The first elastic member includes a spring and a hinge structure, the hinge structure is used to support the sealing plate (31), and the spring cooperates with the hinge structure to keep the sealing plate (31) in the closed position.

6. The molecular sieve rotary wheel purification system according to claim 2, characterized in that, The first elastic member is arranged on the front side of the sealing plate (31).

7. The molecular sieve rotary wheel purification system according to claim 2, characterized in that, A groove is formed on the periphery of the sealing plate (31), and a sealing ring is embedded in the groove.

8. The molecular sieve rotary wheel purification system according to any one of claims 2-7, characterized in that, It also includes a track plate (9), and when the sealing plate (31) moves between the closed position and the open position, the sealing plate (31) can slide along the track plate (9).

9. The molecular sieve rotary wheel purification system according to any one of claims 1-7, characterized in that It includes a housing, at least part of the housing encloses a desorption area (11), the desorption air duct (1) is communicated with the desorption area (11), and the grille part (2) is arranged at a position adjacent to the desorption area (11) and the desorption air duct (1).

10. A pressure control component is applied to the molecular sieve rotor purification system according to any one of claims 1-9, and is characterized in that, Comprising: Sealing plate (31), movably connected to the pipe wall of the desorption air duct (1) and can move between an open position and a closed position. When the sealing plate (31) is in the closed position, the sealing plate (31) is arranged crosswise to the air flow direction in the desorption air duct (1), and the air flow in the desorption air duct (1) flows from the front side to the rear side of the sealing plate (31); A first elastic member connected to the sealing plate (31) for driving the sealing plate (31) to move to a closed position; When the sealing plate (31) is in the closed position, the sealing plate (31) blocks the desorption air duct (1). A high-pressure area (311a) is formed on the front side of the sealing plate (31), and a low-pressure area (311b) is formed on the rear side of the sealing plate (31). When the air pressure difference between the high-pressure area (311a) and the low-pressure area (311b) reaches a set threshold value, the air pressure in the high-pressure area (311a) pushes the sealing plate (31) to an open position.

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