Oxygen rectification, separation and purification equipment
By introducing a scraper mechanism and a multi-stage filter system into the oxygen distillation and purification equipment, the problems of inconvenient solid impurity cleaning and low oxygen purity are solved, achieving efficient oxygen purification and liquid recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAIHONG GAS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
In existing oxygen purification equipment, solid impurities tend to stick to the inner wall of the distillation column, making cleaning inconvenient and hindering further improvement in oxygen purity.
An oxygen distillation separation and purification device was designed, which uses a scraper mechanism to remove solid impurities and a multi-layer filter system to improve oxygen purity. The device includes scraping off impurities from the inner wall of the tower, multi-stage filtration, and a filtration mechanism and observation port to facilitate cleaning and replacement of the filter screens.
It effectively removes solid impurities, improves oxygen purity, ensures the continuity of filtration and liquid recycling, and simplifies the cleaning and replacement process of the filter screen.
Smart Images
Figure CN224252323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oxygen purification technology, specifically to an oxygen distillation separation and purification device. Background Technology
[0002] Oxygen purification requires the use of distillation columns, which are tower-type vapor-liquid contact devices used for distillation. There are two main types of distillation columns: plate columns and packed columns. Distillation columns utilize the different volatility of components in a mixture—that is, the different vapor pressures of each component at the same temperature—to transfer lighter components (low-boiling substances) from the liquid phase to the gas phase, while heavier components (high-boiling substances) from the gas phase transfer to the liquid phase, thus achieving separation. During operation, some organic solvents flow down the inner wall of the distillation column for oxygen purification. Because some organic solvents contain high levels of solid impurities, these impurities easily adhere to the inner wall of the distillation column, making cleaning inconvenient. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides an oxygen distillation separation and purification device.
[0004] The technical solution adopted by this utility model to solve its technical problem is an oxygen distillation separation and purification device, including a tower body. A feed pipe is fixed on one side of the tower body, and a support and a branch pipe are fixed on the other side of the tower body. A filter mechanism is provided at the top of the support. Two drain valves are fixed to the tower body by bolts. The ends of the two drain valves away from the tower body are fixed to barrels by bolts. The ends of the two barrels away from the tower body are threaded with barrel lids. Vertical pipes are fixed to the bottom of the two barrels. A first filter screen and a first pressure ring are provided in the two barrels. Two support rods are fixed to the side walls of the two first pressure rings. Two support rods are connected to one barrel lid, and the other two support rods are connected to the other barrel lid. A protective cover is fixed to the top of the tower body. A motor is fixed to the top of the protective cover. The output shaft of the motor is connected to a vertical rod through a coupling. A scraper is fixed on the vertical rod. The inner walls of the tower body and the protective cover are in contact with the scraper. An exhaust pipe is fixed to the protective cover.
[0005] By adopting the above technical solution, the oxygen to be purified is introduced into the tower body through the feed pipe, and steam is introduced into the tower body through the branch pipe. The purified oxygen is discharged through the exhaust pipe. The output shaft of the motor drives the vertical rod to rotate, and the scraper rotates accordingly. The scraper can scrape off the solid impurities attached to the inner wall of the tower body. One drain valve is opened and the other drain valve is closed. The liquid in the tower body enters the tank through the opened drain valve. The first filter screen filters the liquid. The filtered liquid is discharged through the vertical pipe, which is conducive to the recycling of the liquid. When the first filter screen needs to be cleaned or replaced, the drain valve near the first filter screen to be cleaned or replaced is closed, the other drain valve is opened, and the tank cover is rotated to remove the first filter screen for cleaning or replacement. While cleaning or replacing the first filter screen, the other first filter screen is used to filter the liquid, ensuring the normal operation of the filtration work.
[0006] Specifically, the filtration mechanism includes a first filter cartridge and a second filter cartridge. Both the first and second filter cartridges are fixed to the top of the support. The ends of the first and second filter cartridges away from the motor are threaded with a cap. A first valve is fixed to the end of the first filter cartridge near the motor, and the end of the first valve away from the first filter cartridge is connected to an exhaust pipe. A conduit is fixed to the end of the second filter cartridge near the motor, and a second valve is fixed to the end of the conduit away from the second filter cartridge. The second valve is connected to the exhaust pipe. A three-way pipe is provided above the support. Two third valves are fixed to the bottom of the three-way pipe. One third valve is connected to the first filter cartridge, and the other third valve is connected to the second filter cartridge. Both the first and second filter cartridges are provided with a second filter screen, a third filter screen, and a second pressure ring. Two connecting rods are fixed to the side walls of the two second pressure rings. Two connecting rods are connected to one cap, and the other two connecting rods are connected to the other cap.
[0007] By adopting the above technical solution, the first valve and the third valve fixed on the first filter cartridge are opened, and the second valve and the third valve fixed on the second filter cartridge are closed. Oxygen in the tower body enters the first filter cartridge through the exhaust pipe and the first valve. The second and third filter screens in the first filter cartridge filter the oxygen. The filtered oxygen is discharged through the three-way pipe, which can further improve the purity of the oxygen. When it is necessary to clean or replace the second and third filter screens in the first filter cartridge, the first valve and the third valve fixed on the first filter cartridge are closed, and the second valve and the third valve fixed on the second filter cartridge are opened. Oxygen enters the second filter cartridge through the conduit. The second and third filter screens in the second filter cartridge filter the oxygen. Cleaning or replacing the second and third filter screens in the first filter cartridge does not affect the filtration operation.
[0008] Specifically, the side wall of the tower body is provided with an observation port, and the observation port is equipped with glass.
[0009] By adopting the above technical solution, the internal condition of the tower can be easily observed through the observation port and glass.
[0010] Specifically, horizontal bars are fixed on both sides of the vertical bar, and the ends of the two horizontal bars away from the vertical bar are connected to the scraper.
[0011] By adopting the above technical solution, the crossbar configuration can improve the strength of the scraper.
[0012] Specifically, the bottom of the tower body is fixed with multiple support legs.
[0013] The beneficial effects of this utility model are:
[0014] (1) The oxygen distillation separation and purification equipment of this utility model introduces the oxygen to be purified into the tower body through the feed pipe and introduces steam into the tower body through the branch pipe. The purified oxygen is discharged through the exhaust pipe. The output shaft of the motor drives the vertical rod to rotate, and the scraper rotates accordingly. The scraper can scrape off the solid impurities attached to the inner wall of the tower body. One drain valve is opened and the other drain valve is closed. The liquid in the tower body enters the tank body through the opened drain valve. The first filter screen filters the liquid. The filtered liquid is discharged through the vertical pipe, which is conducive to the recycling of the liquid. When the first filter screen needs to be cleaned or replaced, the drain valve near the first filter screen that needs to be cleaned or replaced is closed and the other drain valve is opened. The first filter screen can be taken out for cleaning or replacement by rotating the tank cover. When cleaning or replacing the first filter screen, the other first filter screen is used to filter the liquid, which ensures the normal operation of the filtration work.
[0015] (2) The oxygen distillation separation and purification equipment of this utility model opens the first valve and the third valve fixed on the first filter cartridge, closes the second valve and the third valve fixed on the second filter cartridge, and the oxygen in the tower enters the first filter cartridge through the exhaust pipe and the first valve. The second and third filter screens in the first filter cartridge filter the oxygen, and the filtered oxygen is discharged through the three-way pipe, which can further improve the purity of the oxygen. When it is necessary to clean or replace the second and third filter screens in the first filter cartridge, close the first valve and the third valve fixed on the first filter cartridge, open the second valve and the third valve fixed on the second filter cartridge, and the oxygen enters the second filter cartridge through the conduit. The second and third filter screens in the second filter cartridge filter the oxygen. Cleaning or replacing the second and third filter screens in the first filter cartridge does not affect the filtration operation. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the tower body of this utility model;
[0019] Figure 3 This is a cross-sectional view of the barrel body of this utility model;
[0020] Figure 4 This is a cross-sectional view of the first filter cartridge of this utility model.
[0021] In the diagram: 1. Tower body; 101. Glass; 2. Feed pipe; 3. Drain valve; 4. Barrel body; 40. First filter screen; 41. First pressure ring; 42. Support rod; 43. Vertical pipe; 5. Barrel lid; 6. Protective cover; 7. Motor; 70. Vertical rod; 71. Scraper; 72. Horizontal rod; 8. Exhaust pipe; 9. Second valve; 10. First valve; 11. First filter cartridge; 12. Filtration mechanism; 13. Third valve; 14. T-connector; 15. Second filter cartridge; 16. Guide pipe; 17. Support; 18. Branch pipe; 19. Second filter screen; 20. Third filter screen; 21. Second pressure ring; 22. Connecting rod; 23. Barrel lid. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] To facilitate the removal of solid impurities and the filtration of liquids, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 As shown, the oxygen distillation separation and purification equipment of this utility model includes a tower body 1. A feed pipe 2 is welded and fixed to one side of the tower body 1, and a support 17 and a branch pipe 18 are welded and fixed to the other side of the tower body 1. A filter mechanism 12 is provided at the top of the support 17. Two drain valves 3 are fixed to the tower body 1 by bolts. A barrel body 4 is bolted to the ends of the two drain valves 3 away from the tower body 1. A barrel cover 5 is threaded to the ends of the two barrel bodies 4 away from the tower body 1. A vertical pipe 43 is welded and fixed to the bottom of the two barrel bodies 4. A first filter screen 40 and a second filter screen 41 are provided inside the two barrel bodies 4. One pressure ring 41, and two support rods 42 are welded and fixed to the side walls of the two first pressure rings 41. Two of the support rods 42 are welded and connected to one of the barrel lids 5, and the other two support rods 42 are welded and connected to the other barrel lid 5. After the barrel lid 5 is tightened, the first pressure ring 41 can press the first filter screen 40. The top of the tower body 1 is fixed with a cover 6 by bolts. The top of the cover 6 is fixed with a motor 7 by bolts. The output shaft of the motor 7 is connected to a vertical rod 70 through a coupling. A scraper 71 is welded and fixed to the vertical rod 70. The inner walls of the tower body 1 and the cover 6 are both in contact with the scraper 71. An exhaust pipe 8 is welded and fixed to the cover 6.
[0024] In operation, oxygen to be purified is introduced into tower 1 through feed pipe 2, and steam is introduced into tower 1 through branch pipe 18. The purified oxygen is discharged through exhaust pipe 8 (the distillation and purification of oxygen is existing technology and will not be described in detail). The output shaft of motor 7 drives vertical rod 70 to rotate, and scraper 71 rotates accordingly. Scraper 71 can scrape off solid impurities attached to the inner wall of tower 1. One drain valve 3 is opened and the other drain valve 3 is closed. The liquid in tower 1 enters barrel 4 through the opened drain valve 3. First filter screen 40 filters the liquid. The filtered liquid is discharged through vertical pipe 43, which is conducive to the recycling of liquid. When the first filter screen 40 needs to be cleaned or replaced, the drain valve 3 near the first filter screen 40 that needs to be cleaned or replaced is closed, the other drain valve 3 is opened, and the barrel cover 5 is rotated to remove the first filter screen 40 for cleaning or replacement. When cleaning or replacing the first filter screen 40, the other first filter screen 40 is used to filter the liquid, ensuring the normal operation of the filtration work.
[0025] To further improve the purity of oxygen, for example, such as Figure 1 , Figure 4 As shown, the filtration mechanism 12 includes a first filter cartridge 11 and a second filter cartridge 15. Both the first filter cartridge 11 and the second filter cartridge 15 are welded and fixed to the top of the support 17. A cap 23 is threaded onto the ends of the first filter cartridge 11 and the second filter cartridge 15 furthest from the motor 7. A first valve 10 is welded and fixed to the end of the first filter cartridge 11 closest to the motor 7. The end of the first valve 10 furthest from the first filter cartridge 11 is welded and connected to the exhaust pipe 8. A conduit 16 is welded and fixed to the end of the second filter cartridge 15 closest to the motor 7. A second valve 9 is welded and fixed to the end of the conduit 16 furthest from the second filter cartridge 15. The second valve 9 is welded and connected to the exhaust pipe 8. A three-way pipe 14 is provided above the support 17. Two third valves 13 are welded and fixed to the bottom end of the three-way pipe 14. One third valve 13 is welded and connected to the first filter cartridge 11, and the other third valve 13 is welded and connected to the second filter cartridge 15. The first filter cartridge 11 and the second filter cartridge 15 are each provided with a second filter screen 19, a third filter screen 20, and a second pressure ring 21. The aperture of the second filter screen 19 is larger than that of the third filter screen 20. Two connecting rods 22 are welded and fixed to the side walls of the two second pressure rings 21. Two connecting rods 22 are welded and connected to one cylinder cover 23, and the other two connecting rods 22 are welded and connected to the other cylinder cover 23. After the cylinder cover 23 is tightened, the second pressure ring 21 can press the third filter screen 20 and the second filter screen 19.
[0026] In use, open the first valve 10 and the third valve 13 fixed on the first filter cartridge 11, and close the second valve 9 and the third valve 13 fixed on the second filter cartridge 15. Oxygen in the tower body 1 enters the first filter cartridge 11 through the exhaust pipe 8 and the first valve 10. The second filter screen 19 and the third filter screen 20 in the first filter cartridge 11 filter the oxygen. The filtered oxygen is discharged from the top of the three-way pipe 14, which can further improve the purity of the oxygen. When it is necessary to clean or replace the second filter screen 19 and the third filter screen 20 in the first filter cartridge 11, close the first valve 10 and the third valve 13 fixed on the first filter cartridge 11, and open the second valve 9 and the third valve 13 fixed on the second filter cartridge 15. Oxygen enters the second filter cartridge 15 through the conduit 16. The second filter screen 19 and the third filter screen 20 in the second filter cartridge 15 filter the oxygen. Cleaning or replacing the second filter screen 19 and the third filter screen 20 in the first filter cartridge 11 does not affect the filtration operation.
[0027] To facilitate observation of the interior of tower body 1, for example, as shown below. Figure 1 As shown, the side wall of the tower body 1 is provided with an observation port, and a glass 101 is provided inside the observation port. The glass 101 is connected to the tower body 1 by an adhesive.
[0028] To improve the strength of scraper 71, for example, such as Figure 2 As shown, horizontal bars 72 are welded and fixed on both sides of the vertical bar 70, and the ends of the two horizontal bars 72 away from the vertical bar 70 are welded and connected to the scraper 71.
[0029] Multiple support legs are welded and fixed to the bottom of the tower body 1.
[0030] In use, the first valve 10 and the third valve 13 fixed on the first filter cartridge 11 are opened, and the second valve 9 and the third valve 13 fixed on the second filter cartridge 15 are closed. The oxygen to be purified is introduced into the tower body 1 through the feed pipe 2, and the steam is introduced into the tower body 1 through the branch pipe 18. The purified oxygen enters the first filter cartridge 11 through the exhaust pipe 8 and the first valve 10. The second filter screen 19 and the third filter screen 20 in the first filter cartridge 11 filter the oxygen. The filtered oxygen is discharged from the top of the three-way pipe 14, which can further improve the purity of the oxygen.
[0031] The output shaft of motor 7 drives the vertical rod 70 to rotate, and the scraper 71 rotates accordingly. The scraper 71 can scrape off solid impurities attached to the inner wall of the tower body 1. One drain valve 3 is opened and the other drain valve 3 is closed. The liquid in the tower body 1 enters the tank 4 through the opened drain valve 3. The first filter screen 40 filters the liquid. The filtered liquid is discharged through the vertical pipe 43, which is conducive to the recycling of the liquid. When the first filter screen 40 needs to be cleaned or replaced, the drain valve 3 near the first filter screen 40 that needs to be cleaned or replaced is closed, the other drain valve 3 is opened, and the tank cover 5 is rotated to take out the first filter screen 40 for cleaning or replacement. When cleaning or replacing the first filter screen 40, the other first filter screen 40 is used to filter the liquid, ensuring the normal operation of the filtration work.
[0032] When it is necessary to clean or replace the second filter screen 19 and the third filter screen 20 in the first filter cartridge 11, close the first valve 10 and the third valve 13 fixed on the first filter cartridge 11, and open the second valve 9 and the third valve 13 fixed on the second filter cartridge 15. Oxygen enters the second filter cartridge 15 through the conduit 16. The second filter screen 19 and the third filter screen 20 in the second filter cartridge 15 filter the oxygen. Cleaning or replacing the second filter screen 19 and the third filter screen 20 in the first filter cartridge 11 does not affect the filtration operation.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.
Claims
1. An oxygen distillation separation and purification device, characterized in that, The system includes a tower body (1), a feed pipe (2) fixed on one side of the tower body (1), a support (17) and a branch pipe (18) fixed on the other side of the tower body (1), a filter mechanism (12) provided at the top of the support (17), two drain valves (3) fixed on the tower body (1) by bolts, and barrel bodies (4) fixed to the ends of the two drain valves (3) away from the tower body (1) by bolts, barrel lids (5) threaded to the ends of the two barrel bodies (4) away from the tower body (1), vertical pipes (43) fixed to the bottom of the two barrel bodies (4), and a first filter screen provided inside the two barrel bodies (4). (40) and the first pressure ring (41), the side walls of the two first pressure rings (41) are fixed with two support rods (42), the two support rods (42) are connected to one of the barrel covers (5), and the other two support rods (42) are connected to the other barrel cover (5). The top of the tower body (1) is fixed with a cover (6), the top of the cover (6) is fixed with a motor (7), the output shaft of the motor (7) is connected to a vertical rod (70) through a coupling, a scraper (71) is fixed on the vertical rod (70), the inner walls of the tower body (1) and the cover (6) are both in contact with the scraper (71), and an exhaust pipe (8) is fixed on the cover (6).
2. The oxygen distillation separation and purification equipment according to claim 1, characterized in that, The filtration mechanism (12) includes a first filter cylinder (11) and a second filter cylinder (15). Both the first filter cylinder (11) and the second filter cylinder (15) are fixed to the top of the support (17). The ends of the first filter cylinder (11) and the second filter cylinder (15) away from the motor (7) are threaded with cylinder caps (23). A first valve (10) is fixed to the end of the first filter cylinder (11) near the motor (7). The end of the first valve (10) away from the first filter cylinder (11) is connected to the exhaust pipe (8). A conduit (16) is fixed to the end of the second filter cylinder (15) near the motor (7). A second valve (9) is fixed to the end of the conduit (16) away from the second filter cylinder (15). The two valves (9) are connected to the exhaust pipe (8). A three-way pipe (14) is provided above the support (17). Two third valves (13) are fixed at the bottom of the three-way pipe (14). One of the third valves (13) is connected to the first filter cylinder (11), and the other third valve (13) is connected to the second filter cylinder (15). The first filter cylinder (11) and the second filter cylinder (15) are each provided with a second filter screen (19), a third filter screen (20), and a second pressure ring (21). Two connecting rods (22) are fixed on the side walls of the two second pressure rings (21). Two connecting rods (22) are connected to one of the cylinder covers (23), and the other two connecting rods (22) are connected to the other cylinder cover (23).
3. The oxygen distillation separation and purification equipment according to claim 1, characterized in that, The tower body (1) has an observation port on its side wall, and a glass (101) is installed inside the observation port.
4. The oxygen distillation separation and purification equipment according to claim 1, characterized in that, Both sides of the vertical rod (70) are fixed with horizontal rods (72), and the ends of the two horizontal rods (72) away from the vertical rod (70) are connected to the scraper (71).
5. The oxygen distillation separation and purification equipment according to claim 1, characterized in that, The bottom of the tower body (1) is fixed with multiple support legs.