Tank structure for pressure swing adsorption oxygen production

Abstract

The utility model discloses a tank body structure for pressure swing adsorption oxygen generation, and relates to the technical field related to oxygen generators. Comprising an oxygen generation tank body, an assembling groove is formed in the bottom of the oxygen generation tank body, an air inlet is formed in the bottom of the assembling groove, a support is arranged on the upper portion of the assembling groove, a rotating shaft is installed in the middle of the support through a bearing, a rotational flow plate is fixedly installed at the bottom end of the rotating shaft, a backing ring is installed on the lower portion in the oxygen generation tank body, and an air distribution plate is installed on the backing ring; and a net barrel is mounted on the gas distribution plate. According to the tank body structure for pressure swing adsorption oxygen generation, compressed air is introduced through an external air supply system of the air inlet, airflow can rotate when passing through the rotational flow plate, the rotation movement is beneficial to mixing and uniform distribution of the airflow, and meanwhile, the airflow can be uniformly diffused to a large-area area by being matched with the use of the air distribution plate, so that the oxygen generation efficiency is improved. Therefore, the airflow distribution is more uniform, the molecular sieve in the upper net barrel is in full contact with the air, and the adsorption effect is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of oxygen generators, specifically a tank structure for pressure swing adsorption oxygen generation. Background Technology

[0002] Pressure swing adsorption (PSA) oxygen generators mainly consist of a blower, a vacuum pump, a switching valve, an adsorption tank, and an oxygen balance tank. The adsorption tank has an air inlet and an exhaust outlet located at both ends, and the air inlet and exhaust outlet are generally formed in the middle of their respective ends. The adsorption tank is filled with an adsorption layer formed by adsorbents such as molecular sieves. After the raw air passes through a filter to remove dust particles, it is pressurized by the blower and enters the adsorption tank.

[0003] Existing pressure swing adsorption (PSA) oxygen generators have relatively small inlet and outlet diameters compared to the entire adsorption tank. After air enters the adsorption tank through the inlet, the air velocity is high in the adsorption layer along the same straight line as the inlet, while the air velocity is slow in the surrounding area. This results in an uneven distribution of air volume across the entire adsorption layer. The faster-flowing air can quickly penetrate the adsorbent, while the slower-flowing air penetrates the adsorbent slowly. Consequently, the utilization efficiency of the adsorbent varies in different parts of the adsorption layer, affecting the adsorbent's utilization efficiency. Furthermore, the higher utilization efficiency of the adsorbent leads to a shorter service life, which in turn reduces the service life of the molecular sieve. Utility Model Content

[0004] This invention provides a tank structure for pressure swing adsorption oxygen generation to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tank structure for pressure swing adsorption (PSA) oxygen generation, comprising an oxygen generation tank, an assembly groove at the bottom of the oxygen generation tank, an air inlet at the bottom of the assembly groove, a support at the upper part of the assembly groove, a rotating shaft mounted on the middle of the support via a bearing, a swirl plate fixedly mounted at the bottom end of the rotating shaft, a gasket ring installed in the lower inner part of the oxygen generation tank, an air distribution plate mounted on the gasket ring, a mesh barrel mounted on the air distribution plate, the mesh barrel being filled with molecular sieves, a perforated barrel cover tightly fitted to the top of the mesh barrel, and a sealing head connected to the top of the oxygen generation tank via a flange, the top of the sealing head having an air outlet.

[0006] Furthermore, the oxygen generator is provided with supports on its outer surface, and the supports are located around it.

[0007] Furthermore, the swirl plate is suspended in the assembly groove and is located on the same axis as the air inlet.

[0008] Furthermore, the lower part of the perforated barrel cover is provided with an annular retaining edge, which is engaged with the mesh barrel through the annular retaining edge.

[0009] Further, the top of the oxygen production tank body is provided with a sealing gasket, and the sealing gasket is located between the oxygen production tank body and the head.

[0010] Further, the top of the head is provided with a manhole, and a transparent cover plate is connected to the manhole through a flange.

[0011] Compared with the prior art, the utility model provides a tank body structure for pressure swing adsorption oxygen production, which has the following beneficial effects:

[0012] The tank body structure for pressure swing adsorption oxygen production introduces compressed air through the air inlet connected to the air supply system, and the airflow can produce rotary motion when passing through the cyclone plate. Such rotary motion helps the mixing and uniform distribution of the airflow. In combination with the use of the air distribution plate, the airflow can be uniformly diffused to a large area, so that the airflow distribution is more uniform, and the molecular sieve in the upper net barrel is fully contacted with the air, further improving the adsorption effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model;

[0014] Fig. 2 It is a top view of the utility model;

[0015] Fig. 3 It is a sectional view of the utility model.

[0016] In the drawing: 1, oxygen production tank body; 2, assembly groove; 3, air inlet; 4, support; 5, rotating shaft; 6, cyclone plate; 7, gasket ring; 8, air distribution plate; 9, net barrel; 10, molecular sieve; 11, punched barrel cover; 12, head; 13, air outlet; 14, support; 15, annular clamping edge; 16, sealing gasket; 17, manhole; 18, transparent cover plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figs. 1-3The utility model discloses a kind of tank structure for pressure swing adsorption oxygen production, including oxygen production tank 1, the bottom of oxygen production tank 1 is equipped with assembly groove 2, and the bottom of assembly groove 2 is equipped with air inlet 3, the upper portion of assembly groove 2 is equipped with support 4, and the middle part of support 4 is installed with rotating shaft 5 by bearing, the bottom end of rotating shaft 5 is fixedly installed with cyclone plate 6, the inner lower portion of oxygen production tank 1 is installed with gasket ring 7, and gasket ring 7 is installed with gas distribution plate 8, gas distribution plate 8 is installed with net barrel 9, and net barrel 9 is filled with molecular sieve 10, compressed air is introduced by air inlet 3 external connection gas supply system, airflow can produce rotary motion when passing through cyclone plate 6, this rotary motion helps the mixing and uniform distribution of airflow, while cooperating with the use of gas distribution plate 8, airflow can be evenly diffused to large area region, to make airflow distribution more uniform, so that molecular sieve 10 in upper net barrel 9 is fully contacted with air, further improve adsorption effect, the top of net barrel 9 is tightly fitted with punched barrel cover 11, the top of oxygen production tank 1 is connected with head 12 by flange, the top of head 12 is equipped with air outlet 13.

[0019] Specifically, the oxygen production tank 1 is provided with a support 14 on the outer surface, and the support 14 is located around the oxygen production tank 1.

[0020] In this embodiment, the support 14 serves to support the equipment, fix its position, and ensure that the equipment remains stable during operation. It is mainly used for lifting and installing the oxygen production tank 1.

[0021] Specifically, the cyclone plate 6 is suspended in the assembly groove 2 and located on the same axis as the air inlet 3.

[0022] In this embodiment, the cyclone plate 6 is a special fluid control device widely used in various industrial fields. Its core working principle is to make the fluid produce rotary motion when passing through the cyclone plate 6 through specific structural design. This rotary motion not only helps the mixing and uniform distribution of the fluid, but also effectively realizes the separation and purification of the fluid.

[0023] Specifically, the punched barrel cover 11 is provided with an annular clamping edge 15 at the lower part, and is clamped with the net barrel 9 through the annular clamping edge 15.

[0024] In this embodiment, the annular clamping edge 15 is a connecting structure for installing the punched barrel cover 11 and the net barrel 9.

[0025] Specifically, the oxygen production tank 1 is provided with a sealing gasket 16 at the top, and the sealing gasket 16 is located between the oxygen production tank 1 and the head 12.

[0026] In the embodiment, the sealing gasket 16 is an important sealing element widely used in industrial production, which can fill the gap between two contact surfaces to achieve connection and prevent medium leakage, thereby ensuring the normal operation of mechanical equipment.

[0027] Specifically, the top of the head 12 is provided with a manhole 17, and the flange of the manhole 17 is connected with a transparent cover plate 18.

[0028] In the embodiment, the manhole 17 refers to an opening structure for personnel to enter and exit the equipment for installation, maintenance and safety inspection, and the main function of the transparent cover plate 18 is to facilitate observation of the inside of the tank, so that the operator can intuitively observe and monitor the changes inside the tank, and ensure that the production process is controllable.

[0029] In use, compressed air is introduced through the gas supply system connected to the gas inlet 3, and the airflow can produce a rotating motion when passing through the cyclone plate 6. This rotating motion helps the mixing and uniform distribution of the airflow, and in combination with the use of the air distribution plate 8, the airflow can be uniformly diffused to a large area, thereby making the airflow distribution more uniform, so that the molecular sieve 10 in the upper net barrel 9 is fully contacted with the air, and the adsorption effect is further improved.

[0030] In summary, the tank structure for pressure swing adsorption oxygen production introduces compressed air through the gas supply system connected to the gas inlet 3, and the airflow can produce a rotating motion when passing through the cyclone plate 6. This rotating motion helps the mixing and uniform distribution of the airflow, and in combination with the use of the air distribution plate 8, the airflow can be uniformly diffused to a large area, thereby making the airflow distribution more uniform, so that the molecular sieve 10 in the upper net barrel 9 is fully contacted with the air, and the adsorption effect is further improved.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tank structure for pressure swing adsorption oxygen production, comprising an oxygen production tank (1), characterized in that: The bottom of the oxygen production tank body (1) is provided with an assembling groove (2), the bottom of the assembling groove (2) is provided with an air inlet (3), the upper part of the assembling groove (2) is provided with a support (4), the middle part of the support (4) is provided with a rotating shaft (5) through a bearing, the bottom end of the rotating shaft (5) is fixedly provided with a cyclone plate (6), the inner lower part of the oxygen production tank body (1) is provided with a gasket ring (7), the gasket ring (7) is provided with a gas distribution plate (8), the gas distribution plate (8) is provided with a mesh barrel (9), the mesh barrel (9) is filled with a molecular sieve (10), the top of the mesh barrel (9) is tightly provided with a punched barrel cover (11), the top of the oxygen production tank body (1) is connected with an end cover (12) through a flange, the top of the end cover (12) is provided with an air outlet (13).

2. The tank structure for pressure swing adsorption oxygen production according to claim 1, characterized in that: The outer surface of the oxygen production tank body (1) is provided with a support (14), and the support (14) is located around the oxygen production tank body (1).

3. The tank structure for pressure swing adsorption oxygen production according to claim 1, characterized in that: The cyclone plate (6) is suspended in the assembling groove (2) and is located on the same axis as the air inlet (3).

4. The tank structure for pressure swing adsorption oxygen production according to claim 1, characterized in that: The lower part of the punched barrel cover (11) is provided with an annular clamping edge (15), and the annular clamping edge (15) is clamped with the mesh barrel (9).

5. The pressure swing adsorption oxygen generating tank structure according to claim 1, characterized in that: The top of the oxygen production tank body (1) is provided with a sealing gasket (16), and the sealing gasket (16) is located between the oxygen production tank body (1) and the end cover (12).

6. The pressure swing adsorption oxygen generating tank structure according to claim 1, characterized in that: The top of the end cover (12) is provided with a manhole (17), and the manhole (17) is connected with a transparent cover plate (18) through a flange.

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