Oxygen generator adsorption tower

Abstract

The utility model provides an oxygen generator adsorption tower, and solves the technical problems that a molecular sieve of an existing oxygen generator adsorption tower is easy to move to form a passage, so that the local air resistance is small, the whole adsorption tower is unbalanced, and the adsorption and desorption effects are influenced. Comprising a tower body, the tower body is filled with molecular sieve filler, an oxygen balance gas distribution plate is arranged above the molecular sieve filler in a floating mode, and a breathable compaction device is arranged above the oxygen balance gas distribution plate; a plurality of sectional screens are arranged in the molecular sieve filler at intervals in the height direction; and the oxygen balancing and distributing plate, the ventilating and compacting device and the sectional screen mesh are all in non-fixed connection with the tower body. The oxygen generator can be widely applied to the technical field of oxygen generators.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen generator technical field, concretely is a kind of oxygen generator adsorption tower. BACKGROUND

[0002] Oxygen generator is mostly in the form of double tower or four towers, tower is filled with molecular sieve filler, and the gas entering the tower is adsorbed or desorbed, and oxygen is separated out. That is, two or more adsorption towers are alternately used for adsorption and desorption, and oxygen is continuously provided.

[0003] Compared with the diameter of the adsorption tower, its height is usually too high, and the corresponding molecular sieve filler needs to be filled higher. Under the action of airflow for a long time, molecular sieve is easy to form a passage, causing local air resistance to be smaller, causing the problem of imbalance of the whole adsorption tower, thereby affecting the adsorption and desorption effect.

[0004] And the prior art uses pneumatic, electric and other jolt compaction devices, on the one hand, the equipment cost is increased, and the molecular sieve filler is higher, the jolt compaction force transmission effect is not ideal, and the adsorption tower is also damaged to a certain extent. On the other hand, its air-tight structure affects the balance of internal gas flow, adds unnecessary friction factors to the molecular sieve, and reduces the service life of the molecular sieve. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the technical scheme adopted by the present application is to provide an oxygen generator adsorption tower, which comprises a tower body, the tower body is filled with molecular sieve filler, an oxygen balance gas distribution plate is arranged above the molecular sieve filler, and a gas-permeable compaction device is arranged above the oxygen balance gas distribution plate. A plurality of sectional screens are arranged in the molecular sieve filler along the height direction. The oxygen balance gas distribution plate, the gas-permeable compaction device and the sectional screens are not fixedly connected to the tower body.

[0006] Preferably, the tower body further comprises an oxygen guide pipe, the oxygen guide pipe comprises a communication vertical pipe, a support vertical pipe and a communication horizontal pipe, the bottom of the communication vertical pipe extends downward to connect the support vertical pipe, the bottom of the communication vertical pipe is connected to the right of the communication horizontal pipe, the communication horizontal pipe is communicated with the oxygen outlet of the tower body, and the top of the connection vertical pipe penetrates the oxygen balance gas distribution plate and the gas-permeable compaction device upward and is sleeved with an oxygen gas distribution sleeve.

[0007] Preferably, the tower body further comprises an oxygen guide pipe, the oxygen guide pipe comprises a vertical pipe and a horizontal pipe, the top of the vertical pipe penetrates the oxygen balance gas distribution plate and the gas-permeable compaction device upward and is sleeved with an oxygen gas distribution sleeve, the bottom of the vertical pipe is closed, one side of the vertical pipe is communicated with the horizontal pipe, and the horizontal pipe is communicated with the oxygen outlet of the tower body.

[0008] Preferably, an air balance net is arranged below the molecular sieve filler, the air balance net is connected to the bottom of the oxygen guide pipe above, and an air inlet pretreatment layer is filled below the air balance net.

[0009] Preferably, the pretreatment layer is provided with an adsorbent for adsorbing moisture.

[0010] Preferably, the tower body side wall is provided with an oxygen outlet, the bottom of the tower body is provided with an air inlet, and a buffer platform is arranged between the air inlet and the air inlet pretreatment layer.

[0011] Preferably, the buffer platform comprises a buffer plate covering the air inlet, and a support plate connected to the tower body is arranged below the buffer plate.

[0012] Preferably, the distance between adjacent segmented screens is 20-40 cm.

[0013] Preferably, the air-permeable compaction device comprises a cylindrical body screen and a compaction plate arranged above the cylindrical body screen.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The present application is designed ingeniously, and the segmented screens are arranged at intervals in the molecular sieve filler. When filling, the segmented screens are placed after each section of the molecular sieve filler is vibrated and compacted. Finally, the oxygen balance gas distribution plate and the air-permeable compaction device are placed. During use, the air-permeable compaction device provides downward compaction force, ensuring that the molecular sieve will not form a path under the action of air flow for a long time, affecting the adsorption and desorption effect. At the same time, the damage to the molecular sieve is reduced, and the service life of the molecular sieve and the entire adsorption tower is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 A cross-sectional structure schematic diagram of an adsorption tower of an oxygen generator is provided.

[0018] Figure 2 A top view structure schematic diagram of an air inlet and a buffer platform is provided.

[0019] Explanation of symbols in the figure:

[0020] 1. tower body; 2. molecular sieve filler; 3. oxygen balance gas distribution plate; 4. air-permeable compaction device; 5. segmented screen; 6. communication vertical pipe; 7. support vertical pipe; 8. communication horizontal pipe; 9. oxygen outlet; 10. oxygen gas distribution sleeve; 11. air balance net; 12. air inlet pretreatment layer; 13. buffer platform; 14. air inlet; 15. buffer plate; 16. support plate. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved in the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figure 1 A cross-sectional structure schematic diagram of an adsorption tower of an oxygen generator is provided for the present embodiment. The adsorption tower comprises a tower body 1, the tower body 1 is filled with molecular sieve filler 2, an oxygen balance gas distribution plate 3 is floatingly arranged above the molecular sieve filler 2, and a gas-permeable compaction device 4 is arranged above the oxygen balance gas distribution plate 3; a plurality of sectional sieve nets 5 are arranged in the molecular sieve filler 2 in a height direction.

[0024] The oxygen balance gas distribution plate 3, the gas-permeable compaction device 4 and the sectional sieve net 5 are not fixedly connected with the tower body 1, and cooperatively act with each other, so as to avoid that the tower body 1 is too high, the molecular sieve is easily accumulated to form a passage under the action of airflow for a long time, the local gas resistance is small, the problem of imbalance of the adsorption tower as a whole is caused, and the adsorption and desorption effects are affected.

[0025] When filling, the molecular sieve filler 2 is filled into the tower body 1 in sections, one section of the molecular sieve filler 2 is filled, one layer of the sectional sieve net 5 is vibrated and placed, the next section of the molecular sieve filler 2 is filled, and the above steps are repeated until all the molecular sieve fillers 2 are filled, and then the oxygen balance gas distribution plate 3 and the gas-permeable compaction device 4 are arranged above the molecular sieve fillers 2.

[0026] The gas-permeable compaction device 4 and the oxygen balance gas distribution plate 3 are used to compact the molecular sieve filler 2 below, so as to avoid that the molecular sieve filler 2 is accumulated with airflow during work. Meanwhile, the gas-permeable compaction device 4 needs to ensure that it has gas permeability, so as to avoid that the gas flow is not uniform, and the molecular sieve filler 2 below is not uniform. Therefore, the gas-permeable compaction device 4 comprises a columnar body sieve net and a compaction plate, the compaction plate is arranged above the columnar body sieve net, and provides a downward compaction force, and the bottom and the side of the columnar body sieve net ensure gas permeability.

[0027] In one embodiment, the tower 1 is also provided with an oxygen guide pipe, which includes a communication vertical pipe 6, a support vertical pipe 7 and a communication horizontal pipe 8. The bottom of the communication vertical pipe 6 extends downward to connect the support vertical pipe 7, and the bottom of the communication vertical pipe 6 is connected to the communication horizontal pipe 8 on the right. The communication horizontal pipe 8 is in communication with the oxygen outlet 9 of the tower 1. The top of the communication vertical pipe extends upward through the oxygen uniform distribution plate 3, the air permeable compaction device 4 and is sleeved with an oxygen distribution sleeve 10. The support vertical pipe 7 provides stable support, and the oxygen distribution sleeve 10 can help uniform distribution of oxygen while avoiding impurities entering the oxygen guide pipe.

[0028] Another implementation of the oxygen guide pipe: the communication vertical pipe 6 and the support vertical pipe 7 are integrated into a vertical pipe structure. The oxygen guide pipe includes a vertical pipe and a horizontal pipe. The top of the vertical pipe extends upward through the oxygen uniform distribution plate 3, the air permeable compaction device 4 and is sleeved with an oxygen distribution sleeve 10. The bottom of the vertical pipe is closed. One side of the vertical pipe is connected to the horizontal pipe 8. The horizontal pipe is in communication with the oxygen outlet 9 of the tower 1.

[0029] In one embodiment, an air balance net 11 is provided below the molecular sieve filler 2 to serve as a gas distribution and prevent the molecular sieve filler 2 from falling. The air balance net 11 is connected to the bottom of the oxygen guide pipe above, and the air balance net 11 is filled with an air pretreatment layer 12 below. The air pretreatment layer 12 is provided with an adsorbent, which can be a conventional water removal material such as alumina.

[0030] Specifically, the tower 1 is provided with an oxygen outlet 9 on the side wall, and the tower 1 is provided with an air inlet 14 at the bottom. The air inlet 14 is provided with a buffer platform 13 above the air pretreatment layer 12. Figure 2 The buffer platform 13 includes a buffer plate 15 covering the air inlet 14, and the buffer plate 15 is provided with a support plate 16 connected to the tower 1 below.

[0031] Finally, the gas distribution plate, the gas distribution sleeve and the balance net of the present scheme are all porous net structures. The distance between adjacent segmented screens 5 is 20-40 cm. In one specific embodiment, 1.8 meters of molecular sieve filler 2 needs to be filled, which is filled in six segments, 30 cm for one segment. After filling 30 cm of molecular sieve filler 2 height, a layer of segmented screen 5 is placed and the next segment is filled.

[0032] The adsorption tower is used in at least two combinations, and the adsorption and desorption processes are alternately completed. An air compressor is provided with compressed air, the compressed air enters from the air inlet 14 at the bottom of the tower body 1, the vertical airflow contacts the buffer platform 13 to unload and changes to a horizontal airflow, fully contacts the air pretreatment layer 12 to remove moisture, and then is uniformly distributed to the molecular sieve filler 2 through the air balance net 11, nitrogen is adsorbed into the molecular sieve filler 2, oxygen reaches the top of the tower body 1, and then enters the oxygen guide pipe from the oxygen distribution sleeve 10 and is discharged from the oxygen outlet 9. When it is required to discharge nitrogen in the molecular sieve filler 2, a small amount of oxygen is filled into the oxygen outlet 9, the oxygen is pressed downward from the top, and the nitrogen is naturally desorbed from the molecular sieve filler 2 and discharged from the air inlet 14 at the bottom.

[0033] The utility model discloses simple structure, clever design. One side, the sectioned screen 5 is arranged in the molecular sieve filler 2 at intervals, and the sectioned screen 5 is placed after each molecular sieve filler 2 is vibrated and compacted during filling, and finally the oxygen balance air distribution plate 3 and the breathable compaction device 4 are placed. When using, the breathable compaction device 4 provides downward compaction force, and it is ensured that the molecular sieve does not form a path under the long-time action of airflow, and the adsorption and desorption effect is affected. On the other hand, the oxygen guide pipe is no longer the existing L-shaped pipe structure, and a downward extending support vertical pipe 7 is added to provide stable support, the oxygen guide pipe is more balanced in stress, and the stability is better, and then the uniformity of the internal molecular sieve filler 2 is improved, the friction factor of the molecular sieve filler 2 is reduced, the damage of the molecular sieve filler 2 is effectively reduced, and the service life of the molecular sieve filler 2 and the entire adsorption tower is prolonged.

[0034] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for part of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An adsorption column of an oxygen generator, comprising a column body, wherein a molecular sieve filler is filled in the column body, characterized in that, The molecular sieve filler is floated with an oxygen balance air distribution plate, and the oxygen balance air distribution plate is provided with a breathable compaction device; the molecular sieve filler is provided with a plurality of sectional screens in the height direction; the oxygen balance air distribution plate, the breathable compaction device and the sectional screens are not fixedly connected with the tower body.

2. The adsorption column of claim 1, wherein: The tower body is also provided with an oxygen guide pipe, which comprises a communication vertical pipe, a support vertical pipe and a communication horizontal pipe; the bottom of the communication vertical pipe extends downward to connect the support vertical pipe; the bottom of the communication vertical pipe is connected to the communication horizontal pipe on the right; the communication horizontal pipe is communicated with the oxygen outlet of the tower body; the top of the communication vertical pipe penetrates the oxygen balance air distribution plate and the breathable compaction device upward and is sleeved with an oxygen air distribution sleeve.

3. The adsorption column of claim 1, wherein: The tower body is also provided with an oxygen guide pipe, which comprises a vertical pipe and a horizontal pipe; the top of the vertical pipe penetrates the oxygen balance air distribution plate and the breathable compaction device upward and is sleeved with an oxygen air distribution sleeve; the bottom of the vertical pipe is closed; one side of the vertical pipe is communicated with the horizontal pipe; the horizontal pipe is communicated with the oxygen outlet of the tower body.

4. The adsorption column of claim 2, wherein: The molecular sieve filler is provided with an air balance net below; the air balance net is connected with the bottom of the support vertical pipe above; the air balance net is filled with an air inlet pretreatment layer below.

5. The adsorption column of claim 3, wherein: The molecular sieve filler is provided with an air balance net below; the air balance net is connected with the bottom of the oxygen guide pipe above; the air balance net is filled with an air inlet pretreatment layer below.

6. The adsorption column of claim 4 or 5, wherein: The pretreatment layer is provided with an adsorbent for adsorbing moisture.

7. The adsorption column of claim 4 or 5, wherein: The tower body is provided with the oxygen outlet on the side wall; the tower body is provided with an air inlet at the bottom; a buffer platform is arranged between the air inlet pretreatment layer above the air inlet.

8. The adsorption column of claim 7, wherein: The buffer platform comprises a buffer plate covering the air inlet; the buffer plate is provided with a support plate connected with the tower body below.

9. The adsorption column of claim 1, wherein: The distance between adjacent sectional screens is 20-40 cm.

10. The adsorption column of claim 1 or 9, wherein: The breathable compaction device comprises a columnar body screen and a compaction plate; the compaction plate is arranged above the columnar body screen.

Images