Pressing device of pressure swing adsorption oxygen production equipment

Abstract

The utility model belongs to the technical field of pressure swing adsorption oxygen production, and particularly relates to a pressing device of pressure swing adsorption oxygen production equipment, a second adsorption tower is arranged on one side of a first adsorption tower, pressing plates capable of sliding up and down are arranged in the first adsorption tower and the second adsorption tower, and limiting rings are arranged on the end faces of the pressing plates. A plurality of balls are slidably arranged in the limiting ring, a cover plate is arranged at the top of the balls above the limiting ring, a non-return assembly is arranged on one side of the limiting ring, a plurality of fixing plates capable of being unfolded towards the two sides are arranged between the first adsorption tower and the second adsorption tower, and a fixing assembly is arranged on one side of each fixing plate. According to the pressing device of the pressure swing adsorption oxygen production equipment, by arranging the pressing plate and the non-return mechanism, the height of the pressing plate can be reduced along with reduction of molecular sieves, the activity space of the molecular sieves is reduced, vibration can be reduced, meanwhile, the pulverization efficiency of the molecular sieves can be reduced, and therefore the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure swing adsorption oxygen production, in particular to a pressing device of pressure swing adsorption oxygen production equipment. Background Art

[0002] The pressure swing adsorption oxygen production device consists of an air blower, a vacuum pump, an oxygen production adsorption tower, a product storage tank, a pressure equalizing buffer tank and pipeline program-controlled valves. It is controlled by a computer program and the relevant program-controlled valve switches are driven by oil pressure to achieve the purpose of separating oxygen products from the air.

[0003] Patent application number CN 220026551 U discloses a clamping device for a pressure swing adsorption oxygen generator, including a device main body and a multifunctional fixing mechanism. The clamping device for the pressure swing adsorption oxygen generator places the pressure swing adsorption oxygen generator on an arc-shaped support block, which is rotated to an angle suitable for the pressure swing adsorption oxygen generator through a first rotating shaft and fixed by a tightening knob. The two arc-shaped support blocks clamp the pressure swing adsorption oxygen generator to prevent the pressure swing adsorption oxygen generator from tipping over during equipment operation. The rotating gears drive the arc-shaped fixing plates to move toward each other to fix the pressure swing adsorption oxygen generator. The adjustable clamping device can be used for pressure swing adsorption oxygen generators of different diameters. The anti-slip pad increases friction to prevent the arc-shaped fixing plate from wearing the outer wall of the oxygen generator when clamping the oxygen generator. The arc-shaped support plate is connected to the support groove by a card slot. There are multiple support grooves to facilitate adaptation to pressure swing adsorption oxygen generators of different diameters.

[0004] In the prior art, the adsorption tower can be fixed by setting an arc-shaped fixing plate to prevent it from moving during operation, thereby improving the service life of the equipment. However, the overall use still has the following problems; first, when the adsorption tower is performing adsorption work, the molecular sieve particles inside will vibrate at a high frequency, and some molecular sieves will be pulverized due to airflow impact and long-term vibration, thereby causing the cavity in the adsorption tower to become larger and the range of activity of the molecular sieve to become larger, which will accelerate the pulverization of the molecular sieve, not only affecting the service life of the equipment, but also reducing the adsorption effect; secondly, during the vibration of the adsorption tower, the distance between the two adsorption towers will change due to the vibration, causing damage to the connecting pipes on the surfaces of the two adsorption towers, affecting the service life of the equipment. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a pressing device for a pressure swing adsorption oxygen production equipment. By arranging a pressing plate and a non-return mechanism, the height of the pressing plate can be lowered as the molecular sieve is reduced, thereby reducing the activity space of the molecular sieve, thereby reducing the impact of the molecular sieve on the adsorption tower, and can reduce vibration while also reducing the efficiency of molecular sieve pulverization, thereby increasing the service life of the equipment. By arranging a fixing component, the distance between the first adsorption tower and the second adsorption tower can be fixed to prevent the distance from changing and causing damage to the connecting pipeline.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a compression device of a pressure swing adsorption oxygen production equipment, comprising a first adsorption tower and a second adsorption tower, a second adsorption tower is arranged on one side of the first adsorption tower, and a compression plate that can slide up and down is arranged inside the first adsorption tower and the second adsorption tower, a limiting ring is arranged on the end face of the compression plate, a plurality of balls are slidingly arranged inside the limiting ring, a cover plate is arranged on the top of the ball above the limiting ring, a non-return assembly is arranged on one side of the limiting ring, a plurality of fixed plates that can be expanded to both sides are arranged between the first adsorption tower and the second adsorption tower, and a fixing assembly is arranged on one side of the fixed plate.

[0007] Preferably, the non-return assembly includes a mounting block arranged on the inner wall of the first adsorption tower, a plurality of mounting grooves are arranged inside the mounting block, a return spring is arranged inside each of the mounting grooves, and a non-return block is arranged at one end of the return spring.

[0008] Preferably, a limiting rod is provided on the inner wall of the mounting groove, a sliding groove is provided inside the check block, the check block is slidably connected to the outside of the limiting rod through the sliding groove, and the outer end face of the check block abuts against the bottom of the limiting ring.

[0009] Preferably, the fixing assembly includes a fixing frame arranged between the first adsorption tower and the second adsorption tower, two fixing rods are arranged in the fixing frame, and a clamp is slidably provided on one side of each fixing rod, and the clamp fixes the first adsorption tower and the second adsorption tower.

[0010] Preferably, a plurality of motors are provided on one side of the fixing frame, a bidirectional threaded rod is provided on the output shaft of the motor, sliding blocks are provided at both ends of the bidirectional threaded rod, connecting rods are rotatably provided on both sides of the sliding block, and the connecting rods are rotatably connected to the fixing plate.

[0011] Preferably, a plurality of fixing nuts are provided on the surface of the fixing rod at one end of the clamp, and the fixing nuts are threadedly connected to the fixing rod.

[0012] Preferably, a plurality of connecting pipes are provided on the surfaces of the first adsorption tower and the second adsorption tower.

[0013] In summary, compared with the prior art, the beneficial effects of this solution are:

[0014] (1) The utility model provides a pressing plate and a check mechanism, so that the height of the pressing plate can be lowered as the molecular sieve is reduced, thereby reducing the activity space of the molecular sieve, thereby reducing the impact of the molecular sieve on the adsorption tower, reducing vibration and reducing the efficiency of molecular sieve pulverization, thereby increasing the service life of the equipment;

[0015] (2) The present invention can fix the distance between the first adsorption tower and the second adsorption tower by setting a fixing component, thereby preventing the distance from changing and damaging the connecting pipe, thereby increasing the service life of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle;

[0019] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0020] Figure 5 Schematic diagram of the internal structure of the first adsorption tower;

[0021] Figure 6 is a structural diagram of the fixing frame;

[0022] In the figure: 1 first adsorption tower; 2 second adsorption tower; 3 pressing plate; 4 limiting ring; 5 ball; 6 cover plate; 7 fixing plate; 8 mounting block; 9 mounting groove; 10 return spring; 11 check block; 12 limiting rod; 13 slide groove; 14 fixing frame; 15 motor; 16 bidirectional threaded rod; 17 sliding block; 18 connecting rod; 19 fixing rod; 20 clamp; 21 fixing nut; 22 connecting pipe. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Example 1:

[0024] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4A compression device of a pressure swing adsorption oxygen production equipment includes a first adsorption tower 1 and a second adsorption tower 2. The second adsorption tower 2 is arranged on one side of the first adsorption tower 1. The first adsorption tower 1 and the second adsorption tower 2 are both provided with a compression plate 3 that can slide up and down. A limiting ring 4 is provided on the end surface of the compression plate 3. A plurality of balls 5 are slidingly provided inside the limiting ring 4. A cover plate 6 is provided on the top of the ball 5. A check assembly is provided on one side of the limiting ring 4. A fixed plate 7 that can be expanded to both sides is provided between the first adsorption tower 1 and the second adsorption tower 2, and a fixing assembly is provided on one side of the fixed plate 7.

[0025] In this solution, the material of the clamping plate 3 is filter cotton, which can block the powdered molecular sieve. Molecular sieves are provided inside the first adsorption tower 1 and the second adsorption tower 2. Molecular sieves are existing technology and will not be elaborated in this article. Their main function is to separate oxygen from the gas. During use, the molecular sieve will vibrate due to the airflow, and powderization will occur during the vibration, which will reduce the height of the molecular sieve, thereby causing the cavity inside the first adsorption tower 1 to become larger. At this time, the ball 5 of the limit ring 4 will roll back and forth along the limit ring 4 due to the vibration, and the pressure generated by the rolling will be used to lower the height of the limit ring 4 until the limit ring 4 is stuck by the check assembly on one side, so that the limit ring 4 can no longer move upward and can only move downward, so that the clamping plate 3 always fits the top of the molecular sieve, reducing the activity space of the molecular sieve.

[0026] refer to Figure 3 and Figure 4 The check assembly includes a mounting block 8 arranged on the inner wall of the first adsorption tower 1, and a plurality of mounting grooves 9 are arranged inside the mounting block 8. A return spring 10 is arranged inside the mounting groove 9, and a check block 11 is arranged at one end of the return spring 10. A limiting rod 12 is arranged on the inner wall of the mounting groove 9 inside the check block 11, and a sliding groove 13 is opened inside the check block 11. The check block 11 is slidably connected to the outside of the limiting rod 12 through the sliding groove 13, and the check block 11 abuts against the bottom of the limiting ring 4.

[0027] In this solution, the outer end face of the check block 11 is set at an angle, and the bottom of the limit ring 4 abuts against the inclined surface of the check block 11. After being subjected to the pressure of the ball 5, the limit ring 4 will move downward along the inclined surface of the check block 11 and squeeze the check block 11, so that the check block 11 squeezes the reset spring 10, and the check block 11 will move backward in the installation groove 9. After the bottom of the limit ring 4 passes through the check block 11 smoothly, the reset spring 10 extends and pushes the check block 11 to reset, so that the bottom of the check block 11 blocks the top of the limit ring 4, preventing the limit ring 4 from moving upward, so that the limit ring 4 always fits the top of the molecular sieve, and the limit rod 12 crosses the slide groove 13 of the check block 11 and is connected to the inner wall of the installation groove 9, which can prevent the check block 11 from falling off or rotating to cause the equipment to get stuck.

[0028] refer to Figure 5 and Figure 6 The fixing assembly includes a fixing frame 14 arranged between the first adsorption tower 1 and the second adsorption tower 2. A plurality of motors 15 are arranged on one side of the fixing frame 14. A bidirectional threaded rod 16 is arranged on the output shaft of the motor 15. Sliding blocks 17 are arranged at both ends of the bidirectional threaded rod 16. Connecting rods 18 are rotatably arranged on both sides of the sliding block 17. The connecting rods 18 are rotatably connected to the fixing plate 7.

[0029] In this solution, the motor 15 is a prior art and will not be elaborated in this article. Its main function is to drive the bidirectional threaded rod 16. After the bidirectional threaded rod 16 rotates, it will drive the sliding block 17 on the surface to move relative to each other. The two sliding blocks 17 will cause the connecting rods 18 on both sides to rotate. While the connecting rod 18 rotates, it causes the fixed plate 7 at one end to move outward, and the fixed plate 7 is abutted against the outer walls of the first adsorption tower 1 and the second adsorption tower 2, so that the two adsorption towers can be reinforced to prevent the two adsorption towers from becoming closer during vibration and damaging the connecting pipe 22.

[0030] refer to Figure 5 and Figure 6 The fixing assembly also includes a fixing rod 19 arranged at the bottom of the bidirectional threaded rod 16, and a clamp 20 is slidably provided on one side of the fixing rod 19. One end of the clamp 20 is provided with multiple fixing nuts 21 on the surface of the fixing rod 19, and the fixing nuts 21 are threadedly connected to the fixing rod 19.

[0031] In this solution, the fixing nut 21 is threadedly connected to the fixing rod 19, and the thread directions of the two threads are opposite, so that when the fixing nut 21 is rotated, one end of the clamp 20 can be clamped and fixed, thereby fixing the clamp 20 on the outer walls of the two adsorption towers to prevent the distance between the two adsorption towers from becoming farther and damaging the connecting pipe 22.

[0032] refer to Figure 1 A plurality of connecting pipes 22 are provided on the surfaces of the first adsorption tower 1 and the second adsorption tower 2 .

[0033] During use, the molecular sieve will vibrate due to the flow of gas, and pulverization will occur during the vibration process, which will reduce the height of the molecular sieve and cause the cavity inside the first adsorption tower 1 to become larger. At this time, the balls 5 of the limiting ring 4 will roll along the limiting ring 4 due to the vibration, lowering the height of the limiting ring 4.

[0034] After being subjected to the pressure of the steel ball, the limit ring 4 will move downward along the inclined surface, squeezing the check block 11, so that the check block 11 squeezes the reset spring 10, and moves after the installation groove 9. After the bottom of the limit ring 4 passes through the check block 11 smoothly, the reset spring 10 stretches and pushes the check block 11 to reset, so that the bottom of the check block 11 blocks the top of the limit ring 4, preventing the limit ring 4 from moving upward, so that the clamping plate 3 always fits the top of the molecular sieve, reducing the activity space of the molecular sieve, slowing down the efficiency of the molecular sieve pulverization, and thus improving the service life of the molecular sieve.

[0035] When fixing the adsorption towers, first place the fixing frame 14 between the two adsorption towers, then start the motor 15, and the output shaft of the motor 15 drives the bidirectional threaded rod 16 to rotate. After the bidirectional threaded rod 16 rotates, it will drive the sliding block 17 on the surface to move relative to each other, and the two sliding blocks 17 will cause the connecting rods 18 on both sides to rotate. While the connecting rod 18 rotates, the fixing plate 7 at one end moves outward, and the fixing plate 7 is abutted against the outer wall of the first adsorption tower 1 and the second adsorption tower 2 to prevent the two adsorption towers from becoming closer during vibration and damaging the connecting pipe 22. Then the staff fixes the two clamps 20 on the surfaces of the two adsorption towers respectively, and finally tightens the two fixing nuts 21 to complete the fixation.

[0036] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0037] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0038] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A compacting device for a pressure swing adsorption oxygen production equipment, comprising a first adsorption tower (1) and a second adsorption tower (2), characterized in that: A second adsorption tower (2) is provided on one side of the first adsorption tower (1), and a pressing plate (3) that can slide up and down is provided inside the first adsorption tower (1) and the second adsorption tower (2), and a limiting ring (4) is provided on the end face of the pressing plate (3), and a plurality of balls (5) are provided for sliding inside the limiting ring (4), and a cover plate (6) is provided on the top of the balls (5) above the limiting ring (4), and a non-return assembly is provided on one side of the limiting ring (4), and a plurality of fixed plates (7) that can be expanded to both sides are provided between the first adsorption tower (1) and the second adsorption tower (2), and a fixed assembly is provided on one side of the fixed plate (7).

2. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 1, characterized in that: The non-return assembly comprises a mounting block (8) arranged on the inner wall of the first adsorption tower (1); a plurality of mounting grooves (9) are arranged inside the mounting block (8); a return spring (10) is arranged inside each of the mounting grooves (9); and a non-return block (11) is arranged at one end of the return spring (10).

3. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 2, characterized in that: A limiting rod (12) is provided on the inner wall of the mounting groove (9), a sliding groove (13) is provided inside the check block (11), and the check block (11) is slidably connected to the outside of the limiting rod (12) through the sliding groove (13), and the outer end surface of the check block (11) abuts against the bottom of the limiting ring (4).

4. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 1, characterized in that: The fixing assembly comprises a fixing frame (14) arranged between the first adsorption tower (1) and the second adsorption tower (2), two fixing rods (19) are arranged in the fixing frame (14), and a clamp (20) is slidably provided on one side of each fixing rod (19), and the clamp (20) fixes the first adsorption tower (1) and the second adsorption tower (2).

5. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 4, characterized in that: A plurality of motors (15) are provided on one side of the fixing frame (14), a bidirectional threaded rod (16) is provided on the output shaft of the motor (15), a sliding block (17) is provided at both ends of the bidirectional threaded rod (16), and connecting rods (18) are rotatably provided on both sides of the sliding block (17), and the connecting rods (18) are rotatably connected to the fixing plate (7).

6. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 4, characterized in that: One end of the clamp (20) is provided with a plurality of fixing nuts (21) on the surface of the fixing rod (19), and the fixing nuts (21) are threadedly connected to the fixing rod (19).

7. The pressing device of the pressure swing adsorption oxygen production equipment according to claim 1, characterized in that: A plurality of connecting pipes (22) are provided on the surfaces of the first adsorption tower (1) and the second adsorption tower (2).

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