Novel integrated internal pressure type hydrogen purification device
The integrated internal pressure hydrogen purification device solves the problems of large space occupation by palladium membrane tubes and exhaust pipes and incomplete carbon monoxide purification, achieving efficient hydrogen purification and carbon monoxide purification, and providing convenient installation and maintenance methods.
Patent Information
- Application Number
- CN202420634308.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In existing technologies, the ports of the palladium membrane tube, the mixed gas, the hydrogen, and the waste gas are in different directions, occupying a large space, and toxic gases such as carbon monoxide are not effectively purified.
An integrated internal pressure hydrogen purification device is designed. Through the layout of the outer shell, right end cover, welding seat, spacer ring, tube seat, left end cover, mixing gas pipe, waste gas pipe, capillary tube, stainless steel pipe, palladium membrane tube, hydrogen pipe and support base, the centralized discharge of hydrogen and waste gas is achieved. The purification box, connecting pipe, partition, rotating shaft, baffle, vent plate, cylinder, opening and closing door, adsorbent and other components form separate upper and lower filtration channels to achieve carbon monoxide adsorption and purification.
It achieves efficient purification of hydrogen and carbon monoxide, reduces the space occupied by the equipment, provides a convenient installation method, and allows for adsorbent replacement without shutting down the system.
Smart Images
Figure CN222305292U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen purification equipment, in particular to a novel integrated internal pressure hydrogen purification device. Background Art
[0002] Methanol reforming hydrogen production technology refers to the process of using methanol as a raw material and decomposing methanol into hydrogen and carbon monoxide under appropriate temperature and pressure conditions through the action of a catalyst. In this technology, the impurities in hydrogen are separated and purified through the unique permeability and adsorption capacity of palladium membrane tubes to achieve the required high-purity hydrogen. Methanol reforming hydrogen production technology can be used for hydrogen supply in fuel cell systems. It is also suitable for the production process of chemical products such as synthetic ammonia, formaldehyde, and toluene.
[0003] In the prior art, the pipe openings of the palladium membrane tube, mixed gas, hydrogen and exhaust gas are in different directions, which takes up a lot of space during the subsequent installation process, and the spatial layout is very passive. In the process of methanol reforming to produce hydrogen, the gases produced include other gases such as carbon dioxide and carbon monoxide in addition to hydrogen. Among them, carbon monoxide is a toxic gas and needs to be purified when discharged. Therefore, we propose a new integrated internal pressure hydrogen purification device to solve the above problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a novel integrated internal pressure hydrogen purification device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A novel integrated internal pressure hydrogen purification device comprises a shell, one end of the shell is fixedly connected to a right end cap, the other end of the shell is fixedly connected to a welding seat, the outer wall of the welding seat is fixedly connected to a spacer ring, the outer wall of the spacer ring is fixedly connected to a tube seat, the outer wall of the tube seat is fixedly connected to a left end cap, the outer wall of the left end cap is provided with a welding hole, the inner wall of the welding hole is fixedly connected to a mixed gas pipe, the top of the spacer ring is provided with a circular hole, the inner wall of the circular hole is fixedly connected to an exhaust pipe, the inner wall of the exhaust pipe is fixedly connected to a A capillary is connected, and a plurality of mounting holes are evenly formed on the outer wall of the tube seat, and a stainless steel tube is fixedly connected to the inner walls of the plurality of mounting holes, and a palladium membrane tube is sleeved on one end of the stainless steel tube, and a plurality of circular holes are evenly formed on the outer wall of the welding seat, and the inner walls of the plurality of circular holes are respectively fixedly connected to the outer walls of the plurality of palladium membrane tubes, and through holes are formed on the outer walls of the left end cover, the welding seat and the tube seat, and a hydrogen tube is fixedly connected to the inner wall of the through hole, and a support seat is fixedly sleeved on the outer wall of the hydrogen tube, and a purification mechanism is provided at one end of the exhaust pipe.
[0007] Preferably, the purification mechanism includes a purification box, one end of the exhaust pipe is fixedly connected to a docking tube, one end of the docking tube is fixedly communicated with the outer wall of the purification box, the interior of the purification box is fixedly connected to a partition, the interior of the purification box is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to two baffles, the outer wall of the rotating shaft is fixedly connected to two air permeable plates, one end of the baffle and the air permeable plate are fixedly connected to the same cylinder, the outer wall of the cylinder is evenly provided with a plurality of air holes, the outer wall of the cylinder is hinged with four opening and closing doors, and the outer walls of the opening and closing doors and the sealing door are provided with locks.
[0008] Preferably, the support seat and the shell are clearance-fitted, a through hole is provided on the outer wall of the support seat, the inner wall of the through hole is fixedly connected to the outer wall of the hydrogen pipe, and the hydrogen pipe is provided for the discharge of hydrogen.
[0009] Preferably, a plurality of docking holes are evenly opened on the outer wall of the support seat, and the inner walls of the plurality of docking holes are respectively fixedly connected to one end of the plurality of palladium membrane tubes, so that the plurality of palladium membrane tubes are supported by setting the support seat.
[0010] Preferably, an adsorbent is placed inside the cylinder, and a sealing door is rotatably connected to the top of the purification box, so that carbon monoxide and other harmful gases in the exhaust gas are adsorbed by the adsorbent.
[0011] Preferably, a sliding hole is provided on the outer wall of the purification box, and the inner wall of the sliding hole is rotatably connected to the outer wall of the rotating shaft.
[0012] Preferably, a damping block is fixedly connected to one end of the rotating shaft, and there is a certain friction between the damping block and the purification box to prevent the damping block from rotating easily.
[0013] Preferably, the outer wall of the partition is provided with a groove, the inner wall of the groove is fixedly connected with a sealing rubber gasket, the inner wall of the sealing rubber gasket is slidably connected to the outer wall of the cylinder, and the sealing rubber gasket is provided to increase the sealing performance between the partition and the cylinder.
[0014] Compared with the prior art, the advantages of the utility model are:
[0015] This solution realizes the concentration of hydrogen pipe, mixed gas pipe and exhaust pipe at the left end of the whole device by arranging an outer shell, a right end cover, a welding seat, a spacer ring, a pipe seat, a left end cover, a mixed gas pipe, an exhaust pipe, a capillary, a stainless steel pipe, a palladium membrane tube, a hydrogen pipe and a support seat, thereby realizing hydrogen purification while providing reliable convenience for subsequent installation; by arranging a purification box, a docking tube, a partition, a rotating shaft, a baffle, a breathable plate, a cylinder, an opening and closing door, an adsorbent and a sealing door, separate upper and lower filtering channels are formed under the action of the partition and the baffle, which does not affect the adsorption of carbon monoxide and does not require shutdown operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a novel integrated internal pressure hydrogen purification device proposed by the utility model;
[0018] Figure 2 This is a schematic cross-sectional structure diagram of a novel integrated internal pressure hydrogen purification device proposed in the utility model;
[0019] Figure 3 A novel integrated internal pressure hydrogen purification device proposed in the utility model Figure 2 A schematic diagram of the enlarged structure of part A;
[0020] Figure 4 This is a partial cross-sectional structural schematic diagram of a novel integrated internal pressure hydrogen purification device proposed by the utility model.
[0021] In the figure: 1. outer shell; 2. right end cover; 3. welding seat; 4. spacer ring; 5. pipe seat; 6. left end cover; 7. mixed gas pipe; 8. exhaust gas pipe; 9. capillary tube; 10. stainless steel pipe; 11. palladium membrane tube; 12. hydrogen pipe; 13. support seat; 14. purification box; 15. butt joint; 16. partition; 17. rotating shaft; 18. baffle; 19. breathable plate; 20. cylinder; 21. opening and closing door; 22. adsorbent; 23. sealing door. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Depend on Figure 1-Figure 4 As shown, it relates to a novel integrated internal pressure hydrogen purification device, including an outer shell 1, one end of the outer shell 1 is fixedly connected to a right end cover 2, the other end of the outer shell 1 is fixedly connected to a welding seat 3, the outer wall of the welding seat 3 is fixedly connected to a spacer ring 4, the outer wall of the spacer ring 4 is fixedly connected to a tube seat 5, a chamber is formed between the spacer ring 4 and the tube seat 5 for exhaust gas discharge, the outer wall of the tube seat 5 is fixedly connected to a left end cover 6, and the left end cover 6 and the right end cover 2 seal the two ends of the outer shell 1.
[0024] A welding hole is provided on the outer wall of the left end cover 6, and a mixed gas pipe 7 is fixedly connected to the inner wall of the welding hole. The mixed gas generated by the methanol reformer reaction enters through the mixed gas pipe 7. A circular hole is provided on the top of the partition ring 4, and an exhaust gas pipe 8 is fixedly connected to the inner wall of the circular hole. A capillary tube 9 is fixedly connected to the inside of the exhaust gas pipe 8. A plurality of mounting holes are evenly provided on the outer wall of the tube seat 5, and a stainless steel tube 10 is fixedly connected to the inner walls of the plurality of mounting holes. The tube seat 5 fixes the positions of the plurality of stainless steel tubes 10, and a palladium membrane tube 11 is sleeved on one end of the stainless steel tube 10, and the palladium membrane tube 11 is used for hydrogen purification.
[0025] A plurality of circular holes are evenly formed on the outer wall of the welding seat 3, and the inner walls of the plurality of circular holes are respectively fixedly connected to the outer walls of the plurality of palladium membrane tubes 11; through holes are formed on the outer walls of the left end cover 6, the welding seat 3 and the tube seat 5, and a hydrogen pipe 12 is fixedly connected to the inner wall of the through hole; a support seat 13 is fixedly sleeved on the outer wall of the hydrogen pipe 12, and a gap is fitted between the support seat 13 and the outer shell 1, and there is a gap between the two, and hydrogen enters the cavity between the outer shell 1 and the right end cover 2 from the gap, and is subsequently discharged through the hydrogen pipe 12; a through hole is formed on the outer wall of the support seat 13, and the inner wall of the through hole is fixedly connected to the outer wall of the hydrogen pipe 12; a plurality of docking holes are evenly formed on the outer wall of the support seat 13, and the inner walls of the plurality of docking holes are respectively fixedly connected to one end of the plurality of palladium membrane tubes 11.
[0026] A purification mechanism is provided at one end of the exhaust pipe 8, and the purification mechanism includes a purification box 14. A docking pipe 15 is fixedly connected to one end of the exhaust pipe 8, and one end of the docking pipe 15 is fixedly communicated with the outer wall of the purification box 14. A partition 16 is fixedly connected to the inside of the purification box 14. The partition 16 and two baffles 18 separate the cylinder 20 into two air flow channels. A rotating shaft 17 is rotatably connected to the inside of the purification box 14, and two baffles 18 are fixedly connected to the outer wall of the rotating shaft 17. Two air permeable plates 19 are fixedly connected to the outer wall of the rotating shaft 17, and one end of the baffle 18 and the air permeable plate 19 are fixedly connected to the same cylinder 20.
[0027] A groove is provided on the outer wall of the partition 16, and a sealing gasket is fixedly connected to the inner wall of the groove. The inner wall of the sealing gasket is slidably connected to the outer wall of the cylinder 20. The contact surface between the cylinder 20 and the purification box 14 is sealed. A plurality of air holes are evenly provided on the outer wall of the cylinder 20. Four opening and closing doors 21 are hinged on the outer wall of the cylinder 20. An adsorbent 22 is placed inside the cylinder 20. A sealing door 23 is rotatably connected to the top of the purification box 14. A sliding hole is provided on the outer wall of the purification box 14. The inner wall of the sliding hole is rotatably connected to the outer wall of the rotating shaft 17. A damping block is fixedly connected to one end of the rotating shaft 17. The damping block drives the rotating shaft 17 to rotate, so that the two baffles 18 and the two air permeable plates 19 are swapped up and down.
[0028] Working principle: When in use, the mixed gas produced by the methanol reformer reaction enters the stainless steel tube 10 through the mixed gas pipe 7 and the left end cover 6, and is introduced into the palladium membrane tube 11 through the stainless steel tube 10. Under a certain pressure and temperature, the mixed gas passes through the gap between the stainless steel tube 10 and the palladium membrane tube 11, and the hydrogen in the mixed gas is pressurized out of the palladium membrane tube 11. The hydrogen passes through the gap between the support seat 13 and the shell 1 and flows into the cavity between the shell 1 and the right end cover 2. The hydrogen enters through the right port of the hydrogen pipe 12 on the support seat 13 and flows out; other gases such as carbon monoxide and carbon dioxide in the mixed gas flow along the gap between the stainless steel tube 10 and the palladium membrane tube 11. The gap is collected in the chamber formed by the partition ring 4, and flows into the purification box 14 through the exhaust pipe 8 and the docking pipe 15, and enters the adsorbent 22 from the air hole below the cylinder 20 through the action of the partition 16, and the carbon monoxide is adsorbed by the adsorbent 22 to complete the purification process. At the same time, when the adsorbent 22 needs to be replaced, the damping block is rotated to rotate the rotating shaft 17, so that the two baffles 18 and the two air permeable plates 19 are rotated to switch up and down, and the sealing door 23 and the opening and closing door 21 are opened to take out the adsorbent 22 and add it again. Under the action of the partition 16 and the baffle 18, separate upper and lower filtering channels are formed, which does not affect the adsorption of carbon monoxide and there is no need to shut down the machine.
[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A novel integrated internal pressure hydrogen purification device, comprising a housing (1), characterized in that: One end of the shell (1) is fixedly connected to a right end cover (2), the other end of the shell (1) is fixedly connected to a welding seat (3), the outer wall of the welding seat (3) is fixedly connected to a spacer ring (4), the outer wall of the spacer ring (4) is fixedly connected to a tube seat (5), the outer wall of the tube seat (5) is fixedly connected to a left end cover (6), the outer wall of the left end cover (6) is provided with a welding hole, the inner wall of the welding hole is fixedly connected to a mixed gas pipe (7), the top of the spacer ring (4) is provided with a circular hole, the inner wall of the circular hole is fixedly connected to an exhaust pipe (8), the interior of the exhaust pipe (8) is fixedly connected to a capillary tube (9), and the tube The outer wall of the seat (5) is evenly provided with a plurality of mounting holes, the inner walls of the plurality of mounting holes are all fixedly connected with a stainless steel tube (10), one end of the stainless steel tube (10) is sleeved with a palladium membrane tube (11), the outer wall of the welding seat (3) is evenly provided with a plurality of circular holes, the inner walls of the plurality of circular holes are respectively fixedly connected with the outer walls of the plurality of palladium membrane tubes (11), the outer walls of the left end cover (6), the welding seat (3) and the tube seat (5) are all provided with through holes, the inner walls of the through holes are fixedly connected with a hydrogen tube (12), the outer wall of the hydrogen tube (12) is fixedly sleeved with a support seat (13), and one end of the exhaust pipe (8) is provided with a purification mechanism.
2. A novel integrated internal pressure hydrogen purification device according to claim 1, characterized in that: The purification mechanism comprises a purification box (14), one end of the exhaust pipe (8) is fixedly connected to a butt joint pipe (15), one end of the butt joint pipe (15) is fixedly communicated with the outer wall of the purification box (14), the interior of the purification box (14) is fixedly connected to a partition plate (16), the interior of the purification box (14) is rotatably connected to a rotating shaft (17), the outer wall of the rotating shaft (17) is fixedly connected to two baffles (18), the outer wall of the rotating shaft (17) is fixedly connected to two air permeable plates (19), one end of the baffles (18) and the air permeable plate (19) are fixedly connected to the same cylinder (20), the outer wall of the cylinder (20) is evenly provided with a plurality of air permeable holes, and the outer wall of the cylinder (20) is hinged with four opening and closing doors (21).
3. A novel integrated internal pressure hydrogen purification device according to claim 1, characterized in that: The support seat (13) and the outer shell (1) are clearance-matched, and a through hole is provided on the outer wall of the support seat (13), and the inner wall of the through hole is fixedly connected to the outer wall of the hydrogen pipe (12).
4. A novel integrated internal pressure hydrogen purification device according to claim 1, characterized in that: The outer wall of the support seat (13) is evenly provided with a plurality of docking holes, and the inner walls of the plurality of docking holes are respectively fixedly connected to one end of a plurality of palladium membrane tubes (11).
5. A novel integrated internal pressure hydrogen purification device according to claim 2, characterized in that: An adsorbent (22) is placed inside the cylinder (20), and a sealing door (23) is rotatably connected to the top of the purification box (14).
6. A novel integrated internal pressure hydrogen purification device according to claim 2, characterized in that: The outer wall of the purification box (14) is provided with a sliding hole, and the inner wall of the sliding hole is rotatably connected to the outer wall of the rotating shaft (17).
7. A novel integrated internal pressure hydrogen purification device according to claim 2, characterized in that: One end of the rotating shaft (17) is fixedly connected with a damping block.
8. A novel integrated internal pressure hydrogen purification device according to claim 2, characterized in that: The outer wall of the partition (16) is provided with a groove, the inner wall of the groove is fixedly connected with a sealing rubber pad, and the inner wall of the sealing rubber pad is slidably connected to the outer wall of the cylinder (20).