High molecular sieve tower with high adsorption rate

Abstract

The utility model discloses a high molecular sieve tower with high adsorption rate, which comprises a tower body, an upper tower body and a lower tower body, and the upper tower body is detachably connected with the lower tower body; a first partition plate and a second partition plate are arranged in the lower tower body, and a distance for mounting a molecular sieve is arranged between the first partition plate and the second partition plate; a gas outlet is formed in the top of the upper tower body, and a gas inlet is formed in the bottom of the lower tower body; an exhaust port is formed in one side of the upper tower body; the air flow adjusting assembly is arranged at the air inlet and can change the flow direction of the air flow; the porous arc-shaped sieve plate is arranged in the lower tower body; and the air inlet is positioned between the air inlet and the second partition plate. The utility model has the benefits that the service life of the molecular sieve is prolonged, and the oxygen production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen production equipment, in particular to a high molecular sieve tower with high adsorption rate. Background Art

[0002] In recent years, the epidemic situation at home and abroad has been severe, and the demand for oxygen production equipment has increased significantly, which has also exposed the various drawbacks of current oxygen production equipment. The latest physical oxygen production equipment uses pressure swing adsorption (PSA) to isolate nitrogen, carbon dioxide and other gases, as well as solid particles and moisture from the air, thereby extracting high-purity oxygen. The core components of oxygen production are molecular sieve towers and oil-free air compressors. The oil-free air compressor can pressurize the air that has been filtered of moisture and solid particles and pass it into the molecular sieve tower. The molecular sieve then adsorbs gases other than oxygen, allowing oxygen to pass through the molecular sieve tower to produce oxygen, and then decompresses nitrogen, carbon dioxide and other gases to be discharged for recycling.

[0003] At present, the surface of the molecular sieve is easily powdered during the oxygen production process. Because in the pressure swing adsorption equipment, the carbon molecular sieve is a granular object, it is impossible to fill it absolutely firmly during the filling process. The airflow periodically impacts the molecular sieve in the adsorber during the operation of the adsorption tower, and the molecular sieve sinks and loosens, which will produce a boiling effect. The boiling effect will inevitably cause the molecular sieves to collide with each other, and the molecular sieves to collide with the inner wall of the container, causing the surface structure of the molecular sieve to peel off or powderize. The molecular sieve's air absorption capacity decreases and its performance is reduced. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems or problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a high molecular sieve tower with a high adsorption rate, which can reduce the pulverization of the molecular sieve, prolong its pulverization time, and prolong the service life of the molecular sieve.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a polymer sieve tower with high adsorption rate, comprising a tower body, including an upper tower body and a lower tower body, wherein the upper tower body and the lower tower body are detachably connected;

[0008] The lower tower body is provided with a first partition plate and a second partition plate, and a distance for installing a molecular sieve is provided between the first partition plate and the second partition plate;

[0009] The top of the upper tower body is provided with an air outlet, and the bottom of the lower tower body is provided with an air inlet; one side of the upper tower body is provided with an exhaust port;

[0010] An airflow adjustment component, disposed at the air inlet, capable of changing the airflow direction;

[0011] The porous arc-shaped sieve plate is arranged in the lower tower body and is located between the air inlet and the second partition plate.

[0012] As a preferred solution of the high molecular sieve tower with high adsorption rate described in the utility model, wherein: a plurality of limit blocks are evenly arranged on the inner wall of the upper tower body along its circumference, and the limit blocks are in contact with the first partition plate to achieve the limitation of the first partition plate.

[0013] As a preferred solution of the high molecular sieve tower with high adsorption rate described in the utility model, the airflow adjustment component includes an air inlet pipe connected to the air inlet, a fixed column is arranged in the air inlet pipe, and a plurality of guide blades are arranged between the fixed column and the air inlet pipe.

[0014] As a preferred solution of the high molecular sieve tower with high adsorption rate described in the utility model, a plurality of guide blades are evenly arranged along the circumference of the fixed column.

[0015] As a preferred solution of the high molecular sieve tower with high adsorption rate described in the utility model, wherein: a mounting block is arranged at the bottom of the upper tower body, and a mounting groove matched with the mounting block is arranged at the top of the lower tower body; the upper tower body and the lower tower body are both provided with flanges, which are detachably connected by bolts.

[0016] As a preferred solution of the high molecular sieve tower with high adsorption rate described in the utility model, wherein: the lower tower body is evenly provided with a plurality of connecting blocks along the circumference of the inner side wall thereof, and the connecting blocks are provided with sliding grooves;

[0017] A notch matched with the connecting block is circumferentially arranged on the outer side wall of the second partition; a sliding block capable of sliding in a slide groove is arranged in the notch, and the sliding block is connected to the inner side wall of the slide groove via a spring.

[0018] The beneficial effects of the utility model are as follows: the utility model can change the speed and direction of the airflow by setting an airflow regulating component, thereby avoiding direct impact on the molecular sieve and reducing the pulverization of the molecular sieve. The second partition can push the upper molecular sieve to move to reduce the gap between the molecular sieves, thereby reducing the collision between the molecular sieves and extending their pulverization time, thereby extending the service life of the molecular sieves. The porous arc sieve plate can make the airflow divergently impact, maximize the contact between the airflow and the molecular sieve, and improve the oxygen production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 This is the main view of the polymer sieve tower with high adsorption rate.

[0021] Figure 2 It is a cross-sectional view of a polymer sieve tower with a high adsorption rate.

[0022] Figure 3 Schematic diagram of the airflow regulation component of a polymer sieve tower with high adsorption rate.

[0023] Figure 4 Schematic diagram of the second partition of the polymer sieve tower with high adsorption rate.

[0024] The various labels in the figure are: tower body 100, upper tower body 101, lower tower body 102, first partition 102a, second partition 102b, air outlet 101a, air inlet 102c, exhaust port 101b, air flow adjustment component 200, porous arc sieve plate 300, air inlet pipe 201, fixing column 202, guide fan blade 203, mounting block 101c, mounting groove 102d, connecting block 102e, slide groove 102f, slider 102b-1, spring 102b-2. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1 to 4, which is the first embodiment of the utility model, and this embodiment provides a high molecular sieve tower with a high adsorption rate. By setting an airflow adjustment component 200, the speed and direction of the airflow can be changed, thereby avoiding direct impact on the molecular sieve and reducing the pulverization of the molecular sieve. The second partition plate 102b can push the upper molecular sieve to move to reduce the gap between the molecular sieves, thereby reducing the collision between the molecular sieves, extending their pulverization time, and extending the service life of the molecular sieves. The porous arc sieve plate 300 can make the airflow divergent impact, maximize the contact between the airflow and the molecular sieve, and improve the oxygen production efficiency.

[0030] Specifically, the tower body 100 includes an upper tower body 101 and a lower tower body 102, wherein the upper tower body 101 and the lower tower body 102 are detachably connected;

[0031] The lower tower body 102 is provided with a first partition 102a and a second partition 102b, and a distance for installing a molecular sieve is provided between the first partition 102a and the second partition 102b;

[0032] The top of the upper tower body 101 is provided with an air outlet 101a, and the bottom of the lower tower body 102 is provided with an air inlet 102c; one side of the upper tower body 101 is provided with an exhaust port 101b;

[0033] The airflow adjustment component 200 is disposed at the air inlet 102c and is capable of changing the airflow direction;

[0034] The porous arc-shaped sieve plate 300 is disposed in the lower tower body 102 and is located between the air inlet 101a and the second partition plate 102b.

[0035] It should be noted that the upper tower body 101 and the lower tower body 102 are connected in a disassembly manner to facilitate later maintenance and extend the service life.

[0036] Preferably, the first and second partitions are both provided with through holes to facilitate gas flow.

[0037] Preferably, after the airflow passes through the airflow regulating assembly 200, there is a certain space between the porous arc sieve plate 300 and the molecular sieve. The gas is buffered in this space, so that the speed of the airflow passing through the molecular sieve is more stable, the adsorption performance is improved, and the air entering the tower is dissipated through the arc sieve plate, so that the airflow can reach the dead corner of the molecular sieve, maximize the utilization of the molecular sieve, and improve the oxygen production efficiency.

[0038] Furthermore, a plurality of limit blocks are evenly arranged along the circumference of the inner wall of the upper tower body 101 , and the limit blocks are in contact with the first partition plate 102 a to achieve the limitation of the first partition plate 102 a .

[0039] It should be noted that a concave platform may be provided on the upper tower body 101 to replace the limiting block.

[0040] Furthermore, a mounting block 101c is provided at the bottom of the upper tower body 101, and a mounting groove 102d adapted to the mounting block 101c is provided at the top of the lower tower body 102; both the upper tower body 101 and the lower tower body 102 are provided with flanges 103, which are detachably connected by bolts.

[0041] It should be noted that the upper tower body 101 and the lower tower body 102 are connected via a flange, and the cooperation between the mounting block 101c and the mounting groove 102d can achieve good sealing, and a sealing gasket can be arranged between the mounting groove 102d and the mounting block 101c to further achieve a sealing effect.

[0042] Furthermore, the lower tower body 102 is evenly provided with a plurality of connection blocks 102e along the circumference of the inner side wall thereof, and the connection blocks 102e are provided with sliding grooves 102f;

[0043] The outer wall of the second partition plate 102b is circumferentially provided with a notch matched with the connecting block 102e; a slider 102b-1 capable of sliding in the slide groove 102f is provided in the notch, and the slider 102b-1 is connected to the inner wall of the slide groove 102f via a spring 102b-2.

[0044] It should be noted that the spring 102b-2 always applies an upward pressure to the second partition 102b, which can push the molecular sieve above it to move and reduce the gap between molecules, so as to always maintain the tightness of the molecular sieve and avoid vibration caused by too large a gap, which may cause the molecular sieve to become powdery.

[0045] Furthermore, the airflow adjustment component 200 includes an air intake pipe 201 connected to the air intake port 102 c , a fixing column 202 is disposed in the air intake pipe 201 , and a plurality of guide blades 203 are disposed between the fixing column 202 and the air intake pipe 201 .

[0046] Furthermore, a plurality of guide blades 203 are evenly arranged along the circumference of the fixing column 202 .

[0047] It should be noted that the air inlet pipe 201 is connected to the air inlet port 102c through a flange, and the air inlet pipe 201 is a straight pipe. The angle of the guide blades 203 in the air inlet pipe 201 is determined by the wind volume and speed, and is adjusted according to the actual situation. The number of guide blades 203 is also adjusted according to the actual situation, and the two ends of the guide blades 203 are respectively welded to the side wall of the air inlet pipe 201 and the side wall of the fixing column 202.

[0048] Preferably, after the airflow passes through the guide blade 203, the airflow diverges and spirals into the adsorption tower, reducing the impact of the airflow on the molecular sieve at the bottom of the tower, reducing the movement between molecules, and effectively protecting the molecular sieve.

[0049] In summary, the utility model can change the speed and direction of the airflow by setting the airflow regulating component 200, avoid direct impact on the molecular sieve, and reduce the pulverization of the molecular sieve. The second partition plate 102b can push the upper molecular sieve to move to reduce the gap between the molecular sieves, thereby reducing the collision between the molecular sieves and extending their pulverization time, thereby extending the service life of the molecular sieves. The porous arc sieve plate 300 can make the airflow divergent impact, maximize the contact between the airflow and the molecular sieve, and improve the oxygen production efficiency.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A polymer sieve tower with high adsorption rate, characterized in that: include, The tower body comprises an upper tower body and a lower tower body, wherein the upper tower body and the lower tower body are detachably connected; The lower tower body is provided with a first partition plate and a second partition plate, and a distance for installing a molecular sieve is provided between the first partition plate and the second partition plate; The top of the upper tower body is provided with an air outlet, and the bottom of the lower tower body is provided with an air inlet; one side of the upper tower body is provided with an exhaust port; An airflow adjustment component, disposed at the air inlet, capable of changing the airflow direction; A multi-hole arc-shaped sieve plate is arranged in the lower tower body; Located between the air inlet and the second partition.

2. The polymer sieve tower with high adsorption rate as claimed in claim 1, characterized in that: A plurality of limit blocks are evenly arranged on the inner wall of the upper tower body along its circumference, and the limit blocks are in contact with the first partition plate to achieve the limit of the first partition plate.

3. The polymer sieve tower with high adsorption rate as claimed in claim 1, characterized in that: The airflow adjustment component comprises an air intake pipe connected to the air intake port, a fixing column is arranged in the air intake pipe, and a plurality of guide blades are arranged between the fixing column and the air intake pipe.

4. The polymer sieve tower with high adsorption rate as claimed in claim 3, characterized in that: A plurality of guide blades are evenly arranged along the circumference of the fixing column.

5. The polymer sieve tower with high adsorption rate as claimed in claim 1, characterized in that: The bottom of the upper tower body is provided with a mounting block, and the top of the lower tower body is provided with a mounting groove matched with the mounting block; the upper tower body and the lower tower body are both provided with flanges, which are detachably connected by bolts.

6. The polymer sieve tower with high adsorption rate as claimed in claim 1, characterized in that: The lower tower body is evenly provided with a plurality of connection blocks along the circumference of the inner side wall thereof, and the connection blocks are provided with sliding grooves; A notch matched with the connecting block is circumferentially arranged on the outer side wall of the second partition; a sliding block capable of sliding in a slide groove is arranged in the notch, and the sliding block is connected to the inner side wall of the slide groove via a spring.

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