Novel internal pressure type hydrogen purification device

Abstract

The utility model discloses a novel internal pressure type hydrogen purification device which comprises a shell, wherein one end of the shell is fixedly connected with a hydrogen discharge component; the other end of the shell is in sealed threaded connection with a spacer ring, a waste gas pipe fixedly penetrates through one side of the outer surface of the spacer ring, and a capillary tube is fixedly assembled in the waste gas pipe; and a palladium membrane tube connecting seat is connected between the spacer ring and the shell in a sealing and pressing manner. According to the utility model, through the arrangement of the hydrogen discharge assembly, the gas inlet assembly, the waste gas pipe, the capillary pipe, the spacer ring, the palladium membrane pipe connecting seat, the palladium membrane pipe assembly and the palladium membrane pipe supporting assembly, an integrated internal pressure type design is adopted as a whole, mixed gas is pressed in from the palladium membrane pipe, the mixed gas is purified through the palladium membrane pipe, and waste gas and hydrogen are respectively pressed out; the device has the characteristic of integration of separation and purification, so that the reaction efficiency is high, the hydrogen production amount is large, and meanwhile, the pressing and fixing assembly and the connecting assembly are arranged in a matched manner, so that the palladium membrane tube assembly is favorably replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen purification, in particular to a novel internal pressure hydrogen purification device. Background Art

[0002] Metal palladium diffusion method: The principle of this method is to use the palladium tube or palladium membrane to have good selective permeability to hydrogen. At a certain temperature, hydrogen molecules are ionized into protons and electrons on the palladium tube or palladium membrane, and then diffuse to the low hydrogen partial pressure side under the action of the concentration gradient, and recouple into hydrogen molecules on the surface of the palladium tube or palladium membrane. It is suitable for industries with high requirements for hydrogen purity, such as semiconductors, float glass, fine chemicals, etc.

[0003] At present, 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. Therefore, the metal palladium diffusion method is needed to purify the hydrogen, and a reasonable purification structure becomes the key to improving the efficiency of hydrogen purification. For this purpose, a new type of internal pressure hydrogen purification device is proposed. Utility Model Content

[0004] The utility model is a novel internal pressure hydrogen purification device proposed to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel internal pressure hydrogen purification device, comprising a shell, one end of which is fixedly connected to a hydrogen discharge assembly; the other end of the shell is sealingly threadedly connected to a spacer ring, one side of the outer surface of the spacer ring is fixedly penetrated by an exhaust pipe, and the interior of the exhaust pipe is fixedly equipped with a capillary; a palladium membrane tube connecting seat is commonly sealed and crimped between the spacer ring and the shell, one side of the outer surface of the palladium membrane tube connecting seat is provided with a plurality of T-shaped circular holes extending to the other side, the interiors of the plurality of T-shaped circular holes are all sealed and abutted against palladium membrane tube assemblies, a pressing assembly is commonly installed between the plurality of palladium membrane tube assemblies and the palladium membrane tube connecting seat, the other ends of the plurality of palladium membrane tube assemblies are commonly plugged with a palladium membrane tube support assembly, and a connecting assembly is commonly connected between the palladium membrane tube support assembly and the pressing assembly; the other end of the spacer ring is fixedly connected to an air intake assembly, and a plurality of air outlet ends of the air intake assembly are all plugged into adjacent palladium membrane tube assemblies.

[0006] Furthermore, the hydrogen discharge assembly includes a right end cover, and the right end cover is fixedly connected to the shell, and a hydrogen pipe is fixedly passed through one side of the outer surface of the right end cover, which is conducive to the discharge of hydrogen.

[0007] Furthermore, the palladium membrane tube assembly includes a joint, and the joint is sealed and abutted against the T-shaped circular hole. The other end of the joint is fixedly penetrated by a palladium membrane tube body, and the function of the palladium membrane tube body is to separate impurity gas from hydrogen, thereby improving the purity of hydrogen.

[0008] Furthermore, the pressing assembly includes a screw rod, and the screw rod is fixedly connected to the palladium membrane tube connecting seat. The outer surface of the screw rod is threadedly connected to a nut. The outer surface of the nut is rotatably connected to a porous pressure plate, and the porous pressure plate is slidably sleeved on the outer surfaces of multiple palladium membrane tube bodies and abuts against the joint. The distance between the porous pressure plate and the palladium membrane tube connecting seat can be adjusted by cooperating with the nut and the screw rod.

[0009] Furthermore, the palladium membrane tube support assembly includes a palladium membrane tube support seat, and the palladium membrane tube support seat is arranged inside the shell and loosely fits therewith, one side of the outer surface of the palladium membrane tube support seat is fixedly connected with a plurality of support tubes that pass through the other side, and the palladium membrane tube body is inserted into the adjacent support tubes and loosely fits therewith, which has a supporting effect on the palladium membrane tube body, increases the strength of the palladium membrane tube body during use, and prevents it from deformation.

[0010] Furthermore, the connecting assembly includes a rotating block, one end of which is fixedly connected to a long rod, and the long rod passes through the palladium membrane tube support seat and is rotatably connected thereto, the end of the long rod is fixedly connected to a connecting bolt, and the connecting bolt and the screw are threadedly connected, and the outer surface of the rotating block is provided with anti-slip grooves, which can increase the friction of the outer surface of the rotating block and avoid slipping during use.

[0011] Furthermore, the air intake assembly includes a left end cover, and the left end cover is fixedly connected to the spacer ring, the inner surface of the left end cover is fixedly connected to a stainless steel tube support seat, one side of the outer surface of the stainless steel tube support seat is fixedly connected to a plurality of stainless steel tube bodies that penetrate to the other side, and the stainless steel tube bodies are inserted into the interior of adjacent joints and are gap-matched therewith, which is beneficial to the distribution of the mixed gas into each palladium membrane tube assembly.

[0012] Furthermore, an air intake pipe is fixedly passed through one side of the outer surface of the left end cover, and the provision of the air intake pipe is conducive to the mixed gas entering the left end cover.

[0013] Beneficial effects of the utility model:

[0014] When the utility model is in use, the novel internal pressure hydrogen purification device adopts an integrated internal pressure design through the hydrogen discharge component, air intake component, exhaust pipe, capillary, spacer ring, palladium membrane tube connecting seat, palladium membrane tube component and palladium membrane tube supporting component. The mixed gas is pressed into the palladium membrane tube, and the mixed gas is purified by the palladium membrane tube, and the exhaust gas and hydrogen are pressed out respectively. It has the characteristics of integrated separation and purification, so that the reaction efficiency is high and the hydrogen production is large. At the same time, it is convenient to replace the palladium membrane tube component in combination with the provided pressing component and connecting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 : A three-dimensional diagram of the utility model;

[0017] Figure 2 : A cross-sectional view of the utility model;

[0018] Figure 3 :The utility model Figure 2 Enlarged view of point A in the middle.

[0019] The reference numerals are as follows:

[0020] 1. Shell; 2. Spacer ring; 3. Exhaust pipe; 4. Left end cover; 5. Inlet pipe; 6. Right end cover; 7. Hydrogen pipe; 8. Capillary tube; 9. Long rod; 10. Palladium membrane tube body; 11. Palladium membrane tube support seat; 12. Support tube; 13. Rotating block; 14. Stainless steel tube support seat; 15. Stainless steel tube body; 16. T-shaped round hole; 17. Joint; 18. Multi-hole pressure plate; 19. Palladium membrane tube connecting seat; 20. Screw; 21. Connecting bolt; 22. Nut. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 3 As shown, it relates to a novel internal pressure hydrogen purification device, including a shell 1, one end of which is fixedly connected to a hydrogen discharge assembly, the hydrogen discharge assembly includes a right end cover 6, and the right end cover 6 is fixedly connected to the shell 1, and a hydrogen pipe 7 is fixedly passed through one side of the outer surface of the right end cover 6, and the hydrogen is discharged through the hydrogen pipe 7 after purification.

[0023] The other end of the shell 1 is sealed and threadedly connected with a spacer ring 2, and an exhaust pipe 3 is fixedly passed through one side of the outer surface of the spacer ring 2. A capillary 8 is fixedly installed inside the exhaust pipe 3. The setting of the capillary 8 is conducive to the discharge of exhaust gas, wherein the capillary 8 reduces the exhaust gas pressure and flow rate, and can also cause backflow.

[0024] A palladium membrane tube connecting seat 19 is sealed and crimped between the spacer ring 2 and the shell 1. A plurality of T-shaped circular holes 16 are provided on one side of the outer surface of the palladium membrane tube connecting seat 19 and penetrate to the other side. The interiors of the plurality of T-shaped circular holes 16 are sealed and abutted with palladium membrane tube assemblies. The palladium membrane tube assemblies all include joints 17, and the joints 17 are sealed and abutted against the T-shaped circular holes 16. The other end of the joints 17 is fixedly penetrated with a palladium membrane tube body 10. The function of the palladium membrane tube body 10 is to separate impurity gases from hydrogen, thereby improving the purity of the hydrogen.

[0025] A pressing assembly is commonly installed between multiple palladium membrane tube assemblies and the palladium membrane tube connecting seat 19, and a palladium membrane tube support assembly is commonly inserted at the other end of the multiple palladium membrane tube assemblies. A connecting assembly is commonly connected between the palladium membrane tube support assembly and the pressing assembly. The pressing assembly includes a screw 20, and the screw 20 is fixedly connected to the palladium membrane tube connecting seat 19. The outer surface of the screw 20 is threadedly connected with a nut 22. The outer surface of the nut 22 is rotatably connected with a porous pressure plate 18, and the porous pressure plate 18 is slidably sleeved on the outer surfaces of the multiple palladium membrane tube bodies 10 and abuts against the joint 17. The palladium membrane tube support assembly includes a palladium membrane tube support seat 11, and the palladium membrane tube support seat 11 is arranged inside the shell 1 and gap-matched therewith, and one side of the outer surface of the palladium membrane tube support seat 11 is fixedly connected with multiple support tubes 12 that penetrate to the other side, and The palladium membrane tube body 10 is inserted into the adjacent support tube 12 and loosely matched therewith. The connecting assembly includes a rotating block 13. One end of the rotating block 13 is fixedly connected to a long rod 9, and the long rod 9 passes through the palladium membrane tube support seat 11 and is rotatably connected thereto. The end of the long rod 9 is fixedly connected to a connecting bolt 21, and the connecting bolt 21 is threadedly connected to the screw 20. When assembling the palladium membrane tube assembly, first assemble the palladium membrane tube assembly in the T-shaped circular hole 16, and then pass multiple palladium membrane tube bodies 10 through the porous pressure plate 18, and then screw the nut 22 onto the screw 20 until the porous pressure plate 18 is tightly abutted against the joint 17, and then insert multiple palladium membrane tube bodies 10 into the support tube 12, and then twist the rotating block 13, and the rotating block 13 drives the long rod 9 to rotate until the connecting bolt 21 is screwed into the screw 20.

[0026] The other end of the spacer ring 2 is fixedly connected to an air intake assembly, and multiple air outlet ends of the air intake assembly are inserted into adjacent palladium membrane tube assemblies. The air intake assembly includes a left end cover 4, and the left end cover 4 is fixedly connected to the spacer ring 2. The inner surface of the left end cover 4 is fixedly connected to a stainless steel tube support seat 14, and one side of the outer surface of the stainless steel tube support seat 14 is fixedly connected to multiple stainless steel tube bodies 15 that penetrate to the other side, and the stainless steel tube bodies 15 are inserted into the interior of the adjacent joints 17 and fit therewith with a gap. One side of the outer surface of the left end cover 4 is fixedly penetrated by an air intake pipe 5, and the mixed gas enters the left end cover 4 through the air intake pipe 5, and then is distributed to multiple palladium membrane tube assemblies through the stainless steel tube bodies 15.

[0027] Working principle: the mixed gas enters the left end cover 4 through the intake pipe 5, is then distributed to multiple joints 17 through the stainless steel tube body 15, and then enters the palladium membrane tube body 10. As the pressure increases, the hydrogen is purified through the palladium membrane tube body 10 and enters the shell 1. Because the palladium membrane tube body 10 and the support tube 12 are clearance-fitted, and the palladium membrane tube support seat 11 and the shell 1 are also clearance-fitted, as the internal pressure of the shell 1 increases, the hydrogen can enter the right end cover 6 and then be discharged through the hydrogen pipe 7. As time goes by, the exhaust gas in the palladium membrane tube body 10 accumulates more and more, and under the action of pressure, it is discharged into the spacer ring 2 through the gap between the stainless steel tube body 15 and the joint 17, and then discharged through the exhaust pipe 3 and the capillary 8.

[0028] 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 internal pressure hydrogen purification device, comprising a housing (1), characterized in that: One end of the shell (1) is fixedly connected to a hydrogen exhaust assembly; The other end of the housing (1) is sealedly threadedly connected to a spacer ring (2), an exhaust pipe (3) is fixedly passed through one side of the outer surface of the spacer ring (2), and a capillary tube (8) is fixedly installed inside the exhaust pipe (3); A palladium membrane tube connection seat (19) is sealed and crimped between the spacer ring (2) and the shell (1); a plurality of T-shaped circular holes (16) are provided on one side of the outer surface of the palladium membrane tube connection seat (19) and extend to the other side; the interiors of the plurality of T-shaped circular holes (16) are sealed and abutted against palladium membrane tube assemblies; a pressing assembly is installed between the plurality of palladium membrane tube assemblies and the palladium membrane tube connection seat (19); a palladium membrane tube support assembly is inserted at the other end of the plurality of palladium membrane tube assemblies; a connecting assembly is connected between the palladium membrane tube support assembly and the pressing assembly; The other end of the spacer ring (2) is fixedly connected to an air intake assembly, and a plurality of air outlet ends of the air intake assembly are all plugged into adjacent palladium membrane tube assemblies.

2. A novel internal pressure hydrogen purification device according to claim 1, characterized in that: The hydrogen discharge assembly comprises a right end cover (6), and the right end cover (6) is fixedly connected to the shell (1), and a hydrogen pipe (7) is fixedly passed through one side of the outer surface of the right end cover (6).

3. A novel internal pressure hydrogen purification device according to claim 1, characterized in that: The palladium membrane tube assembly comprises a joint (17), and the joint (17) is sealed and abutted against the T-shaped circular hole (16), and the other end of the joint (17) is fixedly penetrated by the palladium membrane tube body (10).

4. A novel internal pressure hydrogen purification device according to claim 3, characterized in that: The pressing assembly includes a screw (20), and the screw (20) is fixedly connected to the palladium membrane tube connecting seat (19), the outer surface of the screw (20) is threadedly connected to a nut (22), the outer surface of the nut (22) is rotatably connected to a porous pressure plate (18), and the porous pressure plate (18) is slidably sleeved on the outer surfaces of multiple palladium membrane tube bodies (10) and abuts against the joint (17).

5. A novel internal pressure hydrogen purification device according to claim 4, characterized in that: The palladium membrane tube support assembly comprises a palladium membrane tube support seat (11), and the palladium membrane tube support seat (11) is arranged inside the shell (1) and is loosely matched therewith, and one side of the outer surface of the palladium membrane tube support seat (11) is fixedly connected to a plurality of support tubes (12) that penetrate to the other side, and the palladium membrane tube body (10) is inserted into an adjacent support tube (12) and is loosely matched therewith.

6. A novel internal pressure hydrogen purification device according to claim 5, characterized in that: The connecting assembly comprises a rotating block (13), one end of the rotating block (13) is fixedly connected to a long rod (9), and the long rod (9) passes through a palladium membrane tube support seat (11) and is rotatably connected thereto, and the end of the long rod (9) is fixedly connected to a connecting bolt (21), and the connecting bolt (21) is threadedly connected to a screw rod (20).

7. A novel internal pressure hydrogen purification device according to claim 6, characterized in that: The air intake assembly comprises a left end cover (4), and the left end cover (4) is fixedly connected to the spacer ring (2); the inner surface of the left end cover (4) is fixedly connected to a stainless steel pipe support seat (14); one side of the outer surface of the stainless steel pipe support seat (14) is fixedly connected to a plurality of stainless steel pipe bodies (15) that penetrate to the other side; and the stainless steel pipe bodies (15) are inserted into the interior of an adjacent joint (17) and are clearance-matched therewith.

8. A novel internal pressure hydrogen purification device according to claim 7, characterized in that: An air intake pipe (5) is fixedly passed through one side of the outer surface of the left end cover (4).

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