Molecular sieve pressing anti-leakage device for molecular sieve oxygen production and adsorption tower for oxygen production

Abstract

The utility model discloses a molecular sieve compression anti-leakage device for molecular sieve oxygen production and an adsorption tower for oxygen production, the compression anti-leakage device comprises a compression disc and a compression spring, one end of the compression spring is fixed on the compression disc, the compression disc is provided with a plurality of gas through holes, and the gas through holes are communicated with the compression disc. And a mounting hole is formed in the pressing disc, so that the pressing disc is fixedly mounted at the top of the molecular sieve of the adsorption tower. According to the molecular sieve pressing anti-leakage device for molecular sieve oxygen production, the pressing disc and the pressing spring fixed on the pressing disc are utilized to be fixed at the top of the molecular sieve to press the molecular sieve, so that jumping of small-particle molecular sieves can be avoided, the molecular sieves are prevented from leaking, the molecular sieves are prevented from powdering, and the pressing anti-leakage device is prevented from losing efficacy. The adsorption tower for oxygen production is pressed at the top of the molecular sieve, and the molecular sieve is compressed by the compression spring, so that the leakage prevention effect is ensured, and the oxygen production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen production adsorption, in particular to a molecular sieve compression and leakage prevention device for molecular sieve oxygen production and an adsorption tower for oxygen production. Background Art

[0002] The miniaturization of molecular sieve oxygen generators is a major development trend. In VPSA molecular sieve oxygen generators, small-particle molecular sieves, such as 0.3-0.8 in particle size, are usually used to achieve the miniaturization of molecular sieve oxygen generators. When such adsorbers use molecular sieves with such small particle sizes, the stability of the molecular sieves in the adsorber must be ensured. The molecular sieves must be pressed tightly without jumping to avoid leakage of the molecular sieves and powdering.

[0003] In view of this, this patent application is filed. Utility Model Content

[0004] The utility model aims to provide a molecular sieve compression and leakage prevention device for molecular sieve oxygen production and an adsorption tower for oxygen production, so as to solve the technical problem of small-particle molecular sieve jumping and leakage in the existing miniaturized molecular sieve oxygen production equipment mentioned above. The compression and leakage prevention device is fixed on the top of the molecular sieve to compress the molecular sieve, which can avoid the jumping of small-particle molecular sieve, prevent the molecular sieve from leaking, and avoid the molecular sieve from pulverizing.

[0005] The utility model is realized by the following technical solutions:

[0006] The first purpose of the utility model is to provide a molecular sieve compression and leakage prevention device for molecular sieve oxygen production, comprising a compression plate and a compression spring, one end of the compression spring is fixed on the compression plate, a plurality of gas passing holes are provided on the compression plate, and the compression plate is fixedly installed on the top of the molecular sieve of the adsorption tower.

[0007] In the embodiment of the utility model, a compression plate and a compression spring fixed thereon are fixed on the top of the molecular sieve to compress the molecular sieve, thereby avoiding the jumping of small particles of the molecular sieve, preventing the molecular sieve from leaking, and avoiding the molecular sieve from pulverizing.

[0008] In an optional embodiment, a compression spring fixing seat is provided on the compression disk, each compression spring fixing seat corresponds to the compression spring one by one, and the compression spring is sleeved on the outside of the compression spring fixing seat.

[0009] In the embodiment of the utility model, the compression spring fixing seat plays a limiting role, which can ensure that the spring will not be displaced during the compression process, ensure the compression effect, and improve the anti-leakage effect.

[0010] In an optional embodiment, the clamping disk is a circular disk, and the clamping spring fixing seats are evenly distributed on the clamping disk.

[0011] In an optional embodiment, the compression spring fixing seat is a cylindrical fixing tube structure.

[0012] In an optional embodiment, the pressure plate is provided with reinforcing ribs.

[0013] In the embodiment of the utility model, the entire structural strength of the compression plate is improved by providing reinforcing ribs, the compression effect at various locations is enhanced, and the molecular sieve is prevented from leaking from the gaps around the adsorber.

[0014] In an optional embodiment, the reinforcing ribs include inner ring ribs, outer ring ribs, and connecting ribs, and the inner ring ribs and the outer ring ribs are connected by connecting ribs.

[0015] In an optional embodiment, filter cotton is applied on a side of the compression plate away from the compression spring, and the filter cotton extends onto the outer peripheral surface of the outer annular rib and extends to the outside of the outer peripheral surface.

[0016] In the embodiment of the utility model, the compaction effect can be further improved by relying on the filter cotton, so as to achieve zero gap between the filter cotton and the adsorber.

[0017] In an optional embodiment, an annular groove is provided on the outer peripheral surface of the outer annular rib, and an elastic preload ring is provided between the annular groove and the filter cotton.

[0018] In the embodiment of the utility model, the elastic pre-tightening ring filled around the compression plate can realize an elastic supplement of the gap between the filter cotton and the adsorber, ensuring that the gap can be supplemented even when there is a deviation.

[0019] In an optional embodiment, the elastic pre-tightening ring is made of elastic rubber or elastic silicone material.

[0020] The second object of the utility model is to provide an adsorption tower for molecular sieve oxygen production, comprising a molecular sieve compression and leakage prevention device for molecular sieve oxygen production as described in any of the above items, wherein the molecular sieve compression and leakage prevention device is fixedly installed on the top of the molecular sieve of the adsorption tower.

[0021] The advantages and beneficial effects of the utility model compared to the prior art are:

[0022] The embodiment of the utility model provides a molecular sieve compression and leakage prevention device for molecular sieve oxygen production, which utilizes a compression plate and a compression spring fixed thereon to be fixed on the top of the molecular sieve to compress the molecular sieve, thereby preventing the small particles of the molecular sieve from jumping, preventing the molecular sieve from leaking, and preventing the molecular sieve from pulverizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 This is a schematic structural diagram of a molecular sieve compression and leakage prevention device for molecular sieve oxygen production provided in Example 1.

[0025] Figure 2 A schematic diagram of the side view of a molecular sieve compression and leak prevention device for molecular sieve oxygen production provided in Example 1.

[0026] Figure 3 This is a schematic diagram of the structure of a molecular sieve compression and leakage prevention device for molecular sieve oxygen production provided in Example 2.

[0027] Figure 4 This is a schematic side view of the structure of a molecular sieve compression and leakage prevention device for molecular sieve oxygen production provided in Example 2.

[0028] Marks and corresponding parts names in the attached drawings:

[0029] 1-compression plate, 2-compression spring, 3-gas through hole, 4-compression spring fixing seat, 501-inner ring rib, 502-outer ring rib, 503-connecting rib, 6-filter cotton, 7-ring groove, 8-elastic preload ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0031] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0032] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figures 1-2 As shown in the figure, a molecular sieve compression and leakage prevention device for molecular sieve oxygen production includes a compression plate 1 and a compression spring 2. The compression plate 1 adopts a disc structure and is suitable for a circular molecular sieve adsorption tower. The surface of the compression plate 1 is a porous structure. A plurality of gas passage holes 3 are provided on the compression plate 1, and the product gas can freely penetrate the orifice plate. One end of the compression spring 2 is fixed on the compression plate 1 to compress the molecular sieve through the compression spring 2. Mounting holes such as threaded holes can also be provided on the compression plate 1 to fix the compression plate 1 on the top of the molecular sieve of the adsorption tower by screws.

[0036] In this embodiment, a compression plate 1 and a compression spring 2 fixed thereon are fixed on the top of the molecular sieve to compress the molecular sieve, thereby preventing the small particles of the molecular sieve from jumping, leaking the molecular sieve, and pulverizing the molecular sieve.

[0037] Furthermore, a compression spring fixing seat 4 is fixedly provided on the compression disc 1. The compression spring fixing seat 4 is a cylindrical fixed tube structure. Each compression spring fixing seat 4 corresponds to a compression spring 2 one by one. The compression spring 2 is sleeved on the outside of the compression spring fixing seat 4. The compression spring fixing seat 4 plays a limiting role, which can ensure that the spring will not be displaced during the compression process, ensure the compression effect, and improve the anti-leakage effect. The compression spring fixing seats 4 are evenly distributed on the compression disc 1, so that the compression effect of the molecular sieve at all places of the compression disc 1 is uniform.

[0038] Furthermore, reinforcing ribs are provided on the compression plate 1. The reinforcing ribs include inner ring ribs 501, outer ring ribs 502, and connecting ribs 503. The outer ring ribs 502 are located on the outer circumference of the compression plate 1 and are integrally formed with the compression plate 1. The inner ring ribs 501 are located in the middle of the compression plate 1 and inside the outer ring ribs 502, and are concentric rings with the outer ring ribs 502. The two ends of the connecting ribs 503 are respectively connected to the inner ring ribs 501 and the outer ring ribs 502, and a plurality of connecting ribs 503 are provided.

[0039] Since the diameter of the VPSA adsorber is usually relatively large, when the compression plate 1 compresses the molecular sieve, the perimeter of the area where the compression plate 1 is connected to the adsorber is relatively long, and it is very easy for the small molecular sieve to leak out from the peripheral gaps. Therefore, in this embodiment, the compression plate 1 has sufficient structural strength, and the entire structural strength of the compression plate 1 is improved by providing reinforcing ribs, which has good reinforcement measures. Inner ring ribs 501 are provided in the middle of the compression plate 1, so that the periphery does not deform when the middle part is compressed, thereby strengthening the compression effect at various locations and preventing the molecular sieve from leaking from the gaps around the adsorber.

[0040] Embodiment 2:

[0041] like Figure 3 , 4 As shown, on the basis of Example 1, filter cotton 6 is laid on the side of the compression plate 1 away from the compression spring 2, and the airflow can be filtered by the filter cotton 6 and pass freely. At the same time, the filter cotton 6 is extended to the outer peripheral surface of the outer ring rib 502 and extends to the outside of the outer peripheral surface, so that the compression effect can be further improved by relying on the filter cotton 6, and zero gap between the filter cotton 6 and the adsorber can be achieved.

[0042] Furthermore, an inner concave annular groove 7 is provided on the outer circumferential surface of the outer annular rib 502, and an elastic pre-tightening ring 8 is provided between the annular groove 7 and the filter cotton 6. The elastic pre-tightening ring 8 is sleeved outside the annular groove 7 to pre-tighten the filter cotton 6 in the annular groove 7, thereby achieving zero gap between the filter cotton 6 and the adsorber by pre-tightening the filter cotton 6. The elastic pre-tightening ring 8 can be made of, but not limited to, elastic rubber or elastic silicone material.

[0043] The compression and anti-leakage device provided in the embodiment of the utility model is pressed on the top of the molecular sieve, and the molecular sieve is compressed by the compression spring 2. When multiple points in the middle are compressed, it is necessary to ensure that the parts around the compression device that contact the adsorption tower cannot be deformed. The elastic pre-tightening ring 8 filled around the compression plate 1 can realize an elastic supplement of the gap between the filter cotton 6 and the adsorber, ensuring that the gap can be supplemented when there is a deviation.

[0044] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific implementation methods of the utility model and are not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A molecular sieve compression and leakage prevention device for molecular sieve oxygen production, characterized in that: It comprises a compression plate (1) and a compression spring (2), one end of the compression spring (2) is fixed on the compression plate (1), a plurality of gas passage holes (3) are provided on the compression plate (1), and the compression plate (1) is fixedly mounted on the top of the molecular sieve of the adsorption tower.

2. The molecular sieve compression and anti-leakage device for molecular sieve oxygen production according to claim 1, characterized in that: The compression disc (1) is provided with a compression spring fixing seat (4), each compression spring fixing seat (4) corresponds to the compression spring (2) one by one, and the compression spring (2) is sleeved on the outside of the compression spring fixing seat (4).

3. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 2, characterized in that: The compression disk (1) is a circular disk, and the compression spring fixing seats (4) are evenly distributed on the compression disk (1).

4. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 3, characterized in that: The compression spring fixing seat (4) is a cylindrical fixing tube structure.

5. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 4, characterized in that: The pressing plate (1) is provided with reinforcing ribs.

6. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 5, characterized in that: The reinforcing ribs include inner annular ribs (501), outer annular ribs (502), and connecting ribs (503), and the inner annular ribs (501) and the outer annular ribs (502) are connected via the connecting ribs (503).

7. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 6, characterized in that: A filter cotton (6) is applied to a side of the compression plate (1) away from the compression spring (2), and the filter cotton (6) extends to the outer peripheral surface of the outer annular rib (502) and extends to the outside of the outer peripheral surface.

8. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 7, characterized in that: An annular groove (7) is provided on the outer peripheral surface of the outer annular rib (502), and an elastic pre-tightening ring (8) is provided between the annular groove (7) and the filter cotton (6).

9. The molecular sieve compression and leakage prevention device for molecular sieve oxygen production according to claim 8, characterized in that: The elastic pre-tightening ring (8) is made of elastic rubber or elastic silicone material.

10. A molecular sieve oxygen production adsorption tower, characterized in that: It comprises the molecular sieve compression and leakage prevention device for molecular sieve oxygen production as claimed in any one of claims 1 to 9, wherein the molecular sieve compression and leakage prevention device is fixedly installed on the top of the molecular sieve of the adsorption tower.

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