Composite vacuum circulation oxygen production device

Abstract

The utility model relates to the technical field of oxygen production equipment, and discloses a composite vacuum circulation oxygen production device which comprises a first air filter, a cooling dryer, a first buffer tank, an adsorption tower and a second buffer tank, the cooling dryer is arranged on the front side of the first air filter, and the first air filter is connected with the cooling dryer through a pipeline; two gas-liquid separators are arranged on one side of the cooling dryer, the two gas-liquid separators are connected with each other through a pipeline, one gas-liquid separator is connected with the cooling dryer through a pipeline, and a second air filter is arranged on one side of the other gas-liquid separator. The flow guide cover, the bearing plate and the flow dividing cover are arranged in the first air filter, the exhaust port is formed in the flow dividing cover, and the partition plate is fixedly mounted in the exhaust port, so that partial high-pressure air is divided, and the utilization rate of molecular sieves at different heights in the adsorption tower can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen production equipment, in particular to a composite vacuum cycle oxygen production device. Background Art

[0002] Vacuum cycle oxygen generator is an industrial oxygen generator based on the principle of physical adsorption. It uses a specific adsorbent to separate impurities such as nitrogen, carbon dioxide and water in the air from oxygen in the cycle of pressurized adsorption and decompression desorption, thereby obtaining high-concentration oxygen.

[0003] For example, the Chinese utility model patent disclosed by publication number CN212450619U: A two-bed vacuum pressure swing adsorption oxygen generator, the application includes a connecting frame, the left and right sides of the top of the connecting frame are fixedly connected with oxygen tanks, the inner side of the oxygen tanks are connected with connecting pipes, and the two oxygen tanks are opened by a controller to separate the oxygen in the air, so as to achieve the effect of oxygen production, and oxygen production requires the use of adsorbents in the oxygen tanks to produce oxygen, and after long-term use, the adsorbents will gradually become saturated due to the adsorption of impurities, resulting in a decrease in its performance, affecting the oxygen production effect of the oxygen generator, and at the same time, the adsorbents may also be impacted by airflow. , temperature changes and other factors cause the adsorbent to break or pulverize, increase equipment resistance and reduce adsorption efficiency. Therefore, in order to ensure the normal operation of the vacuum oxygen generator and the quality of oxygen production, it is necessary to regularly replace the adsorbent to maintain its adsorption activity. This application is the same as the oxygen tanks, adsorption towers and other structures commonly used in the field. Because their oxygen tanks and adsorption towers have large structural dimensions, more adsorbents will be stored inside, resulting in a large storage weight of the adsorbent inside the oxygen tanks and adsorption towers, which brings inconvenience to the subsequent replacement of the adsorbent, resulting in low efficiency in the replacement of the adsorbent, increasing the downtime of the overall device, and affecting the production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a composite vacuum cycle oxygen production device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A composite vacuum cycle oxygen production device comprises a first air filter, a cooling dryer, a first buffer tank, an adsorption tower and a second buffer tank, wherein a cooling dryer is arranged on the front side of the first air filter, the first air filter and the cooling dryer are connected by a pipeline, two gas-liquid separators are arranged on one side of the cooling dryer, the two gas-liquid separators are connected to each other by a pipeline, and one of the gas-liquid separators is also connected to the cooling dryer by a pipeline, a second air filter is arranged on one side of the other gas-liquid separator, and the second air filter is also connected to one of the gas-liquid separators by a pipeline, a plurality of supporting legs are fixedly installed on the outside of the adsorption tower, a material guide plate is fixedly installed between the plurality of supporting legs, an adjusting ring is movably installed on the material guide plate, and a fixed bottom of the adsorption tower is arranged A flow guide cover is provided, a supporting plate is fixedly mounted on the flow guide cover, a flow splitter cover is fixedly mounted on the supporting plate, a plurality of molecular sieve feed barrels are also fixedly mounted between the supporting plate and the flow guide cover, the lower end of the molecular sieve feed barrel passes through the adsorption tower and extends to a position below the adsorption tower, a spiral feed blade is movably mounted in the molecular sieve feed barrel, an oxygen outlet pipe is fixedly mounted at the center position of the top of the adsorption tower, the inner wall of the oxygen outlet pipe is a porous structure, and the lower end of the oxygen outlet pipe passes through the supporting plate, the flow guide cover, the adsorption tower and the guide tray to extend to a position below the guide tray, an air intake pipe is also fixedly mounted at the lower end of the adsorption tower, and the lower end of the air intake pipe also passes through the guide tray and extends to a position below the guide tray, and the air intake pipe is connected to the second air filter through a pipeline, and the lower end of the oxygen outlet pipe is connected to the first buffer tank or the second buffer tank through a pipeline.

[0007] As a further preferred embodiment of the present invention, an exhaust port is provided at the upper part of one side of the diverter cover, a partition is fixedly installed inside the exhaust port, and the top of the partition is not connected to the top of the diverter cover;

[0008] Based on this, with the help of the setting of the guide cover, support plate and diversion cover, the air entering the adsorption tower can be diverted, so that part of the air will not reduce the flow rate too much and pass through the molecular sieve in the upper part of the adsorption tower, thereby preventing the utilization rate of the molecular sieve in the upper part of the adsorption tower from decreasing.

[0009] As a further preferred embodiment of the utility model, a plurality of fan-shaped storage baskets are interspersed and installed on the support plate, and the fan-shaped storage baskets are filled with molecular sieves. Based on this, the molecular sieves are stored in the fan-shaped storage baskets to prevent the molecular sieves from falling into the bottom of the adsorption tower through the channel between the two diverter hoods.

[0010] As a further preferred embodiment of the present invention, a plurality of second fixing rings are fixedly installed on the inner side of the molecular sieve discharge barrel, a plurality of first rotating grooves are opened on the outer side of the spiral discharge paddle, a rotating shaft is fixedly installed on the middle part of the spiral discharge paddle, the spiral discharge paddle is rotatably installed in the molecular sieve discharge barrel, and the first rotating groove is rotatably installed on the corresponding second fixing ring, one end of the rotating shaft passes through the molecular sieve discharge barrel and extends to the outer side of the molecular sieve discharge barrel and is fixedly installed with a bevel gear, and the lower end of the molecular sieve discharge barrel is threadedly connected with a bottom cover;

[0011] Based on this, multiple molecular sieve discharge barrels are arranged between the support plate, the guide cover and the adsorption tower, and a rotatable spiral discharge blade is arranged in the molecular sieve discharge barrel, which can conveniently discharge the molecular sieve in the fan-shaped storage basket and play an anti-clogging role.

[0012] As a further preferred solution of the present utility model, a second rotating groove is provided on the outer side of the material guide disk.

[0013] As a further preferred embodiment of the present invention, a tooth groove is provided on the inner side of the adjusting ring, and a first fixing ring is fixedly installed on the adjusting ring below the tooth groove, and the first fixing ring is rotatably installed in the second rotating groove, that is, the adjusting ring is rotatably installed on the material guide disk through the first fixing ring, and the tooth groove is synchronously meshed with a plurality of bevel gears;

[0014] Based on this, by means of the setting of the adjustment ring, the tooth grooves on the inner side of the adjustment ring are meshed with multiple bevel gears, so that multiple spiral feeding blades can be driven to rotate synchronously, thereby realizing the centralized discharge of molecular sieves in multiple fan-shaped storage baskets in the adsorption tower.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, a guide cover, a supporting plate and a diverter cover are arranged in the first air filter, and an exhaust port is opened in the diverter cover, and a partition is fixedly installed in the exhaust port, so as to realize the diversion of part of the high-pressure air, which can improve the utilization rate of the molecular sieves at different heights in the adsorption tower.

[0017] 2. In the utility model, a plurality of molecular sieve discharge barrels are arranged between the guide cover, the support plate and the adsorption tower, and a spiral discharge blade is arranged in the molecular sieve discharge barrel, and a rotating shaft is arranged in the middle of the spiral discharge blade, and a bevel gear is arranged at one end of the rotating shaft, so that the plurality of spiral discharge blades can be quickly and synchronously rotated in coordination with the rotating adjustment ring, thereby realizing the rapid and convenient discharge and replacement of the molecular sieve in the second buffer tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a bottom view of the adsorption tower of the utility model;

[0020] Figure 3 It is a cross-sectional view of the adsorption tower of the utility model;

[0021] Figure 4 It is a schematic diagram of the split structure of the air guide cover, the supporting plate and the air splitter cover of the utility model;

[0022] Figure 5 for Figure 3 The enlarged view of point A in the middle;

[0023] Figure 6 This is a schematic diagram of the molecular sieve lower barrel splitting structure of the utility model;

[0024] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0025] Figure 8 This is a cross-sectional view of the molecular sieve lower barrel of the utility model;

[0026] Fig. 9 It is a schematic diagram of the disassembled structure of the material guide plate and the adjustment ring of the utility model.

[0027] In the figure: 1. first air filter; 2. cooling dryer; 3. gas-liquid separator; 4. second air filter; 5. first buffer tank; 6. adsorption tower; 7. second buffer tank; 8. supporting leg; 9. deflector; 10. supporting plate; 11. splitter hood; 12. molecular sieve discharge barrel; 13. spiral discharge paddle; 14. guide plate; 15. adjustment ring; 16. air inlet pipe; 17. fan-shaped storage basket; 18. oxygen outlet pipe; 19. exhaust port; 20. partition; 21. first fixed ring; 22. second fixed ring; 23. first rotating groove; 24. rotating shaft; 25. bevel gear; 26. bottom cover; 27. second rotating groove; 28. tooth groove. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1-Figure 9As shown, the utility model provides a composite vacuum cycle oxygen production device, including a first air filter 1, a cooling dryer 2, a first buffer tank 5, an adsorption tower 6 and a second buffer tank 7. The cooling dryer 2 is arranged on the front side of the first air filter 1, and the first air filter 1 is connected to the cooling dryer 2 through a pipeline. Two gas-liquid separators 3 are arranged on one side of the cooling dryer 2, and the two gas-liquid separators 3 are connected to each other through a pipeline, and one of the gas-liquid separators 3 is also connected to the cooling dryer 2 through a pipeline. A second air filter 4 is arranged on one side of the other gas-liquid separator 3, and the second air filter 4 is also connected to one of the gas-liquid separators 3 through a pipeline. A plurality of supporting legs 8 are fixedly installed on the outside of the adsorption tower 6, and a material guide plate 14 is fixedly installed between the plurality of supporting legs 8. An adjusting ring 15 is movably installed on the material guide plate 14. A flow guide cover is fixedly installed on the bottom of the adsorption tower 6 9, a support plate 10 is fixedly installed on the guide cover 9, a flow divider 11 is fixedly installed on the support plate 10, and a plurality of molecular sieve feed barrels 12 are also fixedly installed between the support plate 10 and the guide cover 9, the lower end of the molecular sieve feed barrel 12 passes through the adsorption tower 6 and extends to the position below the adsorption tower 6, a spiral feed blade 13 is movably installed in the molecular sieve feed barrel 12, an oxygen outlet pipe 18 is fixedly installed at the center of the top of the adsorption tower 6, the inner wall of the oxygen outlet pipe 18 is a porous structure, and the lower end of the oxygen outlet pipe 18 passes through the support plate 10, the guide cover 9, the adsorption tower 6 and the guide plate 14 and extends to the position below the guide plate 14, an air inlet pipe 16 is also fixedly installed at the lower end of the adsorption tower 6, and the lower end of the air inlet pipe 16 also passes through the guide plate 14 and extends to the position below the guide plate 14, and the air inlet pipe 16 is connected to the second air filter 4 through a pipeline, and the lower end of the oxygen outlet pipe 18 is connected to the first buffer tank 5 or the second buffer tank 7 through a pipeline.

[0030] like Figure 2-Figure 4 As shown, an exhaust port 19 is provided at the upper side of the diverter cover 11, and a partition 20 is fixedly installed inside the exhaust port 19, and the top of the partition 20 is not connected to the top of the diverter cover 11. With the arrangement of the guide cover 9, the support plate 10, and the diverter cover 11, the air entering the adsorption tower 6 can be diverted, so that part of the air will not reduce the flow rate too much and pass through the molecular sieve in the upper part of the adsorption tower 6, thereby preventing the utilization rate of the molecular sieve in the upper part of the adsorption tower 6 from being reduced. A plurality of fan-shaped storage baskets 17 are interspersed and installed on the support plate 10, and the fan-shaped storage baskets 17 are filled with molecular sieves, and the molecular sieves are stored in the fan-shaped storage baskets 17, and the molecular sieves are prevented from falling into the bottom of the adsorption tower 6 through the channel between the two diverter covers 11.

[0031] like Figure 2-Figure 9As shown, a plurality of second fixing rings 22 are fixedly installed on the inner side of the molecular sieve discharge barrel 12, a plurality of first rotating grooves 23 are opened on the outer side of the spiral discharge blade 13, a rotating shaft 24 is fixedly installed on the middle part of the spiral discharge blade 13, the spiral discharge blade 13 is rotatably installed in the molecular sieve discharge barrel 12, and the first rotating groove 23 is rotatably installed on the corresponding second fixing ring 22, one end of the rotating shaft 24 passes through the molecular sieve discharge barrel 12 and extends to the outer side of the molecular sieve discharge barrel 12 and is fixedly installed with a bevel gear 25, a bottom cover 26 is threadedly connected to the lower end of the molecular sieve discharge barrel 12, a plurality of molecular sieve discharge barrels 12 are arranged between the supporting plate 10, the guide cover 9, and the adsorption tower 6, and a rotatable spiral discharge blade 13 is arranged in the molecular sieve discharge barrel 12, which can be conveniently To discharge the molecular sieve in the fan-shaped storage basket 17 and prevent clogging, a second rotating groove 27 is provided on the outer side of the guide plate 14, a tooth groove 28 is provided on the inner side of the adjusting ring 15, and a first fixing ring 21 is fixedly installed on the adjusting ring 15 located below the tooth groove 28, and the first fixing ring 21 is rotatably installed in the second rotating groove 27, that is, the adjusting ring 15 is rotatably installed on the guide plate 14 through the first fixing ring 21, and the tooth groove 28 is synchronously meshed with multiple bevel gears 25. With the arrangement of the adjusting ring 15, the tooth groove 28 on the inner side of the adjusting ring 15 is meshed with multiple bevel gears 25, so that multiple spiral unloading blades 13 can be synchronously driven to rotate, so as to realize the centralized discharge of the molecular sieves in multiple fan-shaped storage baskets 17 in the adsorption tower 6.

[0032] It should be noted that the utility model is a composite vacuum cycle oxygen production device. When oxygen is prepared through the entire device, external air can be sent into the first air filter 1 through a compressor, and then the air is cooled and dried by the cooling dryer 2 and separated into gas and liquid by the gas-liquid separator 3. Then, the filtered air enters the second air filter 4 and is alternately transported to the two adsorption towers 6 through pipes and valves, so that the air entering the adsorption tower 6 through the air inlet pipe 16 is guided by the guide cover 9 through the channel between the two diverter covers 11 and enters the molecular sieve, and part of the air also enters multiple diverter covers 11, and is guided by the diverter cover 11 to be discharged through the channel between the top of the partition 20 and the top of the diverter cover 11, so that the molecular sieves on the upper and lower layers in the adsorption tower 6 can be fully utilized;

[0033] When the molecular sieves in the fan-shaped storage basket 17 in the adsorption tower 6 need to be replaced, the top cover of the adsorption tower 6 is first opened, and then the bottom cover 26 at the lower end of the multiple molecular sieve lower barrels 12 is screwed down, and the handle on the outer side of the adjustment ring 15 can be manually turned, so that the adjustment ring 15 rotates on the guide plate 14 through the first fixing ring 21, and the tooth grooves 28 on the inner side of the adjustment ring 15 synchronously drive the multiple rotating shafts 24, so that the rotating shafts 24 in the multiple molecular sieve lower barrels 12 rotate synchronously and drive the spiral lower barrels 12 to rotate synchronously. The material paddle 13 rotates, and the multiple first rotating grooves 23 on the outer side of the spiral material discharging paddle 13 rotate on the corresponding second fixed ring 22, so that the spiral material discharging paddle 13 can rotate more stably in the molecular sieve discharging barrel 12, so that the molecular sieve in the second buffer tank 7 enters the molecular sieve discharging barrel 12 from the bottom and is discharged into the guide plate 14, so that it can be collected with the help of the channel at one end of the guide plate 14. After the molecular sieve in the fan-shaped storage basket 17 is discharged, the bottom cover 26 can be re-threaded to the lower end of the molecular sieve discharging barrel 12, and new molecular sieves can be added to the fan-shaped storage basket 17.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite vacuum cycle oxygen production device, characterized in that: The invention comprises a first air filter (1), a cooling dryer (2), a first buffer tank (5), an adsorption tower (6) and a second buffer tank (7), wherein the cooling dryer (2) is arranged on the front side of the first air filter (1), the first air filter (1) and the cooling dryer (2) are connected via a pipeline, two gas-liquid separators (3) are arranged on one side of the cooling dryer (2), the two gas-liquid separators (3) are connected to each other via a pipeline, and one of the gas-liquid separators (3) is also connected to the cooling dryer (2) via a pipeline, and a second air filter (4) is arranged on one side of the other gas-liquid separator (3), and the second air filter (4) is also connected to one of the gas-liquid separators (3) via a pipeline; A plurality of supporting legs (8) are fixedly mounted on the outside of the adsorption tower (6), a material guide plate (14) is fixedly mounted between the plurality of supporting legs (8), an adjusting ring (15) is movably mounted on the material guide plate (14), a flow guide cover (9) is fixedly mounted on the bottom of the adsorption tower (6), a support plate (10) is fixedly mounted on the flow guide cover (9), a flow splitter cover (11) is fixedly mounted on the support plate (10), a plurality of molecular sieve feed barrels (12) are also fixedly mounted between the support plate (10) and the flow guide cover (9), the lower end of the molecular sieve feed barrel (12) passes through the adsorption tower (6) and extends to a position below the adsorption tower (6), a spiral feed barrel (12) is movably mounted in the molecular sieve feed barrel (12) The adsorption tower (6) is provided with an oxygen outlet pipe (18) fixedly mounted at the center of the top thereof; the inner wall of the oxygen outlet pipe (18) is of a porous structure; the lower end of the oxygen outlet pipe (18) passes through the support plate (10), the flow guide cover (9), the adsorption tower (6) and the material guide plate (14) to extend to a position below the material guide plate (14); an air intake pipe (16) is also fixedly mounted at the lower end of the adsorption tower (6); the lower end of the air intake pipe (16) also passes through the material guide plate (14) to extend to a position below the material guide plate (14); the air intake pipe (16) is connected to the second air filter (4) via a pipeline; and the lower end of the oxygen outlet pipe (18) is connected to the first buffer tank (5) or the second buffer tank (7) via a pipeline.

2. A composite vacuum cycle oxygen production device according to claim 1, characterized in that: An exhaust port (19) is provided at the top of one side of the flow splitter cover (11), a partition plate (20) is fixedly installed inside the exhaust port (19), and the top of the partition plate (20) is not connected to the top of the inside of the flow splitter cover (11).

3. A composite vacuum cycle oxygen production device according to claim 2, characterized in that: A plurality of fan-shaped storage baskets (17) are interspersed and installed on the support plate (10), and the fan-shaped storage baskets (17) are filled with molecular sieves.

4. A composite vacuum cycle oxygen production device according to claim 1, characterized in that: A plurality of second fixing rings (22) are fixedly mounted on the inner side of the molecular sieve discharge barrel (12), a plurality of first rotating grooves (23) are opened on the outer side of the spiral discharge blade (13), a rotating shaft (24) is fixedly mounted in the middle of the spiral discharge blade (13), the spiral discharge blade (13) is rotatably mounted in the molecular sieve discharge barrel (12), and the first rotating groove (23) is rotatably mounted on the corresponding second fixing ring (22), one end of the rotating shaft (24) passes through the molecular sieve discharge barrel (12) and extends to the outer side of the molecular sieve discharge barrel (12) and is fixedly mounted with a bevel gear (25), and a bottom cover (26) is threadedly connected to the lower end of the molecular sieve discharge barrel (12).

5. A composite vacuum cycle oxygen production device according to claim 4, characterized in that: A second rotating groove (27) is provided on the outer side of the material guide plate (14).

6. A composite vacuum cycle oxygen production device according to claim 5, characterized in that: A tooth groove (28) is formed on the inner side of the adjusting ring (15), and a first fixing ring (21) is fixedly mounted on the adjusting ring (15) below the tooth groove (28). The first fixing ring (21) is rotatably mounted in a second rotating groove (27), that is, the adjusting ring (15) is rotatably mounted on the material guide plate (14) via the first fixing ring (21), and the tooth groove (28) is synchronously meshed with the plurality of bevel gears (25).

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