A plate heat exchanger for hydrogen production

Abstract

The utility model discloses a plate shell heat exchanger for hydrogen production, including shell and fixedly arranged on the circumference lateral wall of shell a pair of branch leg, the lateral wall on one end of shell is respectively communicated fixedly provided with liquid inlet no.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a plate-and-shell heat exchanger for hydrogen production. Background Technology

[0002] Plate and shell heat exchangers primarily achieve heat exchange through corrugated plate bundles. They are a new type of heat exchange equipment evolved from the fusion of plate and shell-and-tube heat exchanger technologies. They possess the dual advantages of both plate and shell-and-tube heat exchangers, resulting in both high heat transfer efficiency and strong load-bearing capacity. Therefore, plate and shell heat exchangers are widely used in hydrogen production and other industrial fields.

[0003] While plate heat exchangers are currently used in many fields, they still have some drawbacks, specifically: During use, individual corrugated plates in the plate bundle can deform due to various reasons, causing the seal between two corrugated plates to fail and affecting the heat exchange effect. Typically, the deformation location is found manually by disassembling the plate bundle, which is cumbersome, time-consuming, and labor-intensive. Currently, eddy current detection, 3D imaging technology, and other techniques are used to determine the deformation location of individual corrugated plates in the plate bundle, but these are not only costly but also may not be able to pinpoint the deformation location accurately. Furthermore, because the gap between adjacent corrugated plates in the plate bundle is small, the cleanliness of the fluid is crucial, making it prone to clogging. Utility Model Content

[0004] Therefore, to address the aforementioned shortcomings, this utility model provides a plate-and-shell heat exchanger for hydrogen production. Using this device solves the problems mentioned in the background, such as the cumbersome, time-consuming, and labor-intensive process of manually disassembling and locating the deformation when a single corrugated plate deforms, and the inability to accurately pinpoint the deformation location even with eddy current detection, 3D imaging, and other technologies. Furthermore, it also solves the problem of blockage easily occurring in the channels between adjacent corrugated plates in a plate bundle due to their small clearance. To achieve the above objectives...

[0005] This utility model provides the following technical solution: a plate-and-shell heat exchanger for hydrogen production, comprising a shell and a pair of legs fixedly mounted on the circumferential sidewall of the shell. One end of the shell has a liquid inlet and a liquid outlet fixedly mounted on its sidewall. A second liquid inlet and a second liquid outlet are fixedly mounted on the circumferential sidewall of the shell. A plate bundle is disposed inside the shell. Connecting components are fixedly connected to the first and second liquid inlets, and several release components are disposed on the connecting components. Several spheres are placed inside the release components. A driving mechanism is fixedly mounted on the connecting components. Each sphere comprises a sphere body, with a magnetic layer coated on the inner wall of the sphere. Polygonal magnetic blocks are disposed inside the sphere body, and the polygonal magnetic blocks are connected to the inner wall of the sphere body via supports.

[0006] Furthermore, the connecting assembly includes a connecting cylinder, and the inner wall of the connecting cylinder has several through grooves.

[0007] Furthermore, the release assembly includes a protective shell that is fixedly installed, and the protective shell and the connecting cylinder are connected by a through groove. A slide block is slidably installed inside the protective shell, and a pusher is slidably installed inside the slide block. A top post is fixedly installed on the side wall of the slide block, and the top post is slidably installed through the side wall of the protective shell. The top post and the side wall of the protective shell are elastically connected by a spring.

[0008] Furthermore, the protective shell includes a housing, a relief groove 1 is provided on the top surface of the housing, a pair of sliding grooves are symmetrically provided on the side wall of the inner cavity of the housing, and a relief groove 2 is provided on the side wall of the housing.

[0009] Furthermore, the slide includes a base body, with locking strips fixedly installed on the outer walls of both sides of the base body, and the locking strips are slidably installed on the slide groove. The interior of the base body is provided with a feeding channel, a storage channel, and an installation groove, and the feeding channel, storage channel, and installation groove are sequentially connected. A feed inlet is fixedly installed at the upper opening of the feeding channel. The interior of the base body is also provided with a release hole, and the release hole is connected to the storage channel. A long groove is provided on the side wall of the base body, and the long groove is connected to the installation groove.

[0010] Furthermore, the propulsion component includes a T-shaped plate that is slidably installed in the inner cavity of the mounting groove. The side wall of the T-shaped plate is elastically connected to the side wall of the inner cavity of the mounting groove by a spring. The distal end of the T-shaped plate is slidably disposed in the inner cavity of the storage channel. A pull rod is fixedly installed on the side wall of the T-shaped plate, and the pull rod is slidably disposed in the inner cavity of the long groove.

[0011] Furthermore, the drive mechanism includes a pair of fixed plates fixedly mounted on the side wall of the connecting cylinder. A rotating shaft is rotatably mounted on both fixed plates. A motor is fixedly mounted on the side wall of one of the fixed plates. The output end of the motor is fixedly connected to the rotating shaft. Several levers are fixedly mounted on the outer circumference of the rotating shaft. The length of the levers increases sequentially from right to left, and the increase in length is equal to the diameter difference of the spheres of different diameters in the storage channels of two adjacent release components.

[0012] Furthermore, the plate bundle includes a corrugated plate, which has several inter-plate channels, and several magnetic blocks are embedded in the sidewalls of the inter-plate channels at intervals.

[0013] Furthermore, the magnetic poles of the magnetic layer are opposite to those of the polygonal magnetic blocks.

[0014] Furthermore, the sphere and support are tough, elastic, and supportive, and in a static state, the attraction between the magnetic layer and the polygonal magnetic blocks will not cause the sphere to deform.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By coordinating the drive mechanism and the release component, multiple spheres of different diameters are released into the interior of the connecting cylinder. This helps staff to make a preliminary judgment on whether the corrugated plate has deformed inside, without having to disassemble the plate heat exchanger for inspection, which is more intuitive and convenient.

[0017] 2. When multiple spheres of different diameters move in the inter-plate channel, they enhance the turbulence of the medium, which not only facilitates heat transfer, but also, when the spheres rub or collide with the inter-plate channel, they shake off some of the biofilm or dirt adsorbed on the side wall of the inter-plate channel and discharge it with the medium, thus relieving blockage, extending the cleaning cycle and reducing the amount of cleaning agents used, achieving energy saving, high efficiency and environmental protection.

[0018] 3. This utility model uses an enhanced magnetic field strength to distinguish it from the magnetic field strength generated by the magnetic block, thereby achieving a precise positioning effect and accurately determining the deformation position of the corrugated plate.

[0019] 4. By setting up multiple spheres of different diameters, when the field strength meter detects multiple strong magnetic fields, it indicates that the corrugated plate is deformed in multiple places or that multiple corrugated plates are deformed. Through the above settings, the efficiency of maintenance work is greatly improved. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a schematic diagram of the installation position of the plate bundle of this utility model;

[0022] Figure 3 is a cross-sectional schematic diagram of the connection component and the release component of this utility model;

[0023] Figure 4 is an enlarged view of point A in Figure 3;

[0024] Figure 5 is a schematic diagram of the installation position of the propulsion component of this utility model;

[0025] Figure 6 is a disassembly diagram of the release component of this utility model;

[0026] Figure 7 is a three-dimensional structural diagram of the slide of this utility model;

[0027] Figure 8 is an enlarged view of section B in Figure 7;

[0028] Figure 9 is a three-dimensional structural schematic diagram of the drive mechanism of this utility model;

[0029] Figure 10 is a schematic diagram of the installation position of the release component of this utility model;

[0030] Figure 11 is a three-dimensional structural diagram of the plate bundle of this utility model;

[0031] Figure 12 is a diagram of the internal structure of the sphere of this invention.

[0032] In the diagram: 1. Outer shell; 2. Support leg; 3. Liquid inlet 1; 4. Liquid outlet 1; 5. Liquid inlet 2; 6. Liquid outlet 2; 7. Connecting assembly; 71. Connecting cylinder; 72. Through groove; 8. Release assembly; 81. Protective shell; 811. Shell; 812. Clearance groove 1; 813. Slide groove; 814. Clearance groove 2; 82. Slide seat; 821. Seat body; 822. Feeding channel; 823. Feed inlet; 824. Storage channel; 825. Mounting groove; 826. Release hole; 827. Long groove; 828. Locking strip; 829. Pull rod; 83. Propulsion component; 831. T 832. Spring 2; 84. Top column; 85. Spring 1; 9. Drive mechanism; 91. Fixed plate; 92. Rotating shaft; 93. Lever; 94. Motor; 10. Plate bundle; 101. Corrugated plate; 102. Inter-plate channel; 103. Magnetic block; 20. Sphere; 201. Sphere; 202. Polygonal magnetic block; 203. Support; 204. Magnetic layer. Detailed Implementation

[0033] The following will be combined with the appendix Figures 1-12 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0034] To address the issues of deformation in a single corrugated plate 101 within the plate bundle 10, making precise location of the deformation difficult, and the small gap between adjacent corrugated plates 101 in the plate bundle 10, which easily leads to blockage, as shown in Figures 1-12, the following preferred technical solutions are provided:

[0035] As shown in Figures 1 and 2, a plate-and-shell heat exchanger for hydrogen production includes an outer shell 1 and a pair of legs 2 fixedly mounted on the circumferential sidewall of the outer shell 1. The outer shell 1 is used not only to achieve a sealing effect but also to protect the internal structure. An inlet 3 and an outlet 4 are fixedly connected to one end of the sidewall of the outer shell 1 for conveying a heat medium. An inlet 5 and an outlet 6 are fixedly installed on the circumferential sidewall of the outer shell 1 for conveying a cold medium. A plate bundle 10 is arranged inside the outer shell 1. The heat medium and the cold medium exchange heat through the plate bundle 10. The specific heat exchange principle is existing technology and will not be described in detail here.

[0036] Connecting components 7 are fixedly connected to inlet 3 and inlet 5, respectively. Several release components 8 are provided on the connecting components 7, and several spheres 20 are placed inside each release component 8. A driving mechanism 9 is fixedly provided on the connecting components 7. The diameter of the spheres 20 placed inside each release component 8 is different, as shown in Figures 3-5. After the plate heat exchanger has been running for a period of time, the driving mechanism 9 drives multiple release components 8 to extend into the connecting components 7, thereby releasing the spheres 20 of different diameters placed inside the multiple release components 8 into the connecting components 7. After release, the spheres 20 will enter the plate bundle 10 with the medium. If there is no deformation inside the plate bundle 10, multiple spheres 20 of different diameters will be discharged from outlet 4 or outlet 6. If there is deformation inside the plate bundle 10, some of the spheres 20 will be stuck inside the plate bundle 10. Having magnetic properties, the position of the sphere 20 can be detected by an external field strength meter (not shown in the figure), thus accurately locating the deformation position inside the plate bundle 10. In addition, during its movement inside the plate bundle 10, the sphere 20 can impact the dirt inside the plate bundle 10, thereby cleaning the dirt inside the plate bundle 10. This not only allows the plate heat exchanger to maintain a good heat transfer effect, but also reduces the frequency of cleaning inside the plate bundle 10, resulting in energy saving and high efficiency. Therefore, it is essential to periodically release the sphere 20 into the interior of the connecting component 7 and then into the interior of the plate bundle 10 through the drive mechanism 9 and the release component 8.

[0037] As shown in Figure 3, the connecting assembly 7 includes a connecting cylinder 71, and a plurality of through grooves 72 are provided on the inner wall of the connecting cylinder 71.

[0038] As shown in Figure 3, the release assembly 8 includes a protective shell 81 fixedly installed, and the protective shell 81 and the connecting cylinder 71 are connected by a through groove 72. A slide block 82 is slidably installed inside the protective shell 81, and a ball 20 is placed inside the slide block 82. A pusher 83 is slidably installed inside the slide block 82. The purpose of the pusher 83 is to keep the ball 20 pressed against the end of the slide block 82 to achieve the feeding function. A top post 84 is fixedly installed on the side wall of the slide block 82. The top post 84 is slidably installed through the side wall of the protective shell 81. The top post 84 and the side wall of the protective shell 81 are elastically connected by a spring 85. The spring 85 is used to reset the slide block 82.

[0039] As shown in Figure 3, when the drive mechanism 9 operates, it drives the end of the slide 82 through the through groove 72 and into the interior of the connecting cylinder 71 via the top column 84. When a ball 20 is completely exposed inside the connecting cylinder 71, the ball 20 exposed inside the connecting cylinder 71 will be washed away by the impact of the medium and enter the interior of the plate bundle 10. Then, the drive mechanism 9 no longer acts on the first top column 84. Under the elastic force of the spring 85, the slide 82 quickly resets. The drive mechanism 9 continues to operate and acts on the second and third top columns 84 in sequence, thereby releasing balls 20 of different diameters. With this setting, only one ball 20 of the same diameter can be released at a time. Since the diameter of the ball 20 placed in each release component 8 is different, it is possible to achieve the effect of multiple balls 20 of different diameters passing through the interior of the plate bundle 10.

[0040] As shown in Figure 6, the protective shell 81 includes a shell 811, a relief groove 812 is provided on the top surface of the shell 811, a pair of sliding grooves 813 are symmetrically provided on the side wall of the inner cavity of the shell 811, and a second relief groove 814 is provided on the side wall of the shell 811.

[0041] As shown in Figures 5-8, the slide 82 includes a seat 821. Two retaining strips 828 are fixedly installed on the outer walls of both sides of the seat 821, and the retaining strips 828 are slidably installed on the slide groove 813. The interior of the seat 821 has a feeding channel 822, a storage channel 824, and an installation groove 825, which are sequentially connected. A feed inlet 823 is fixedly installed at the upper opening of the feeding channel 822. The interior of the seat 821 also has a release hole 826, which is connected to the storage channel 824. A long groove 827 is formed on the side wall of the seat 821, and the long groove 827 is connected to the installation groove 825.

[0042] As shown in Figure 5, the pusher 83 includes a T-shaped plate 831 slidably installed in the inner cavity of the mounting groove 825. The side wall of the T-shaped plate 831 is elastically connected to the side wall of the inner cavity of the mounting groove 825 by a spring 832. The distal end of the T-shaped plate 831 is slidably disposed in the inner cavity of the storage channel 824. As shown in Figures 6 and 7, a pull rod 829 is fixedly installed on the side wall of the T-shaped plate 831, and the pull rod 829 is slidably disposed in the inner cavity of the long groove 827. The pull rod 829 is used to reset the T-shaped plate 831. After the operator pulls the pull rod 829 to reset the T-shaped plate 831, the ball 20 is put into the feeding channel 822 from the feed port 823, and then into the storage channel 824 for temporary storage. After the ball 20 is put in, the operator releases the pull rod 829, and the spring 832... Under the elastic force, the T-shaped plate 831 applies a pushing force to the ball 20 in the storage channel 824, so that the ball 20 at the far end is always inside the release hole 826, which makes it easy to release the ball 20 into the interior of the connecting cylinder 71 later.

[0043] As shown in Figures 3 and 9, the drive mechanism 9 includes a pair of fixed plates 91 fixedly installed on the side wall of the connecting cylinder 71. A rotating shaft 92 is rotatably installed on both fixed plates 91. A motor 94 is fixedly installed on the side wall of one of the fixed plates 91. The output end of the motor 94 is fixedly connected to the rotating shaft 92. Several levers 93 are fixedly installed on the outer circumference of the rotating shaft 92. The length of the levers 93 increases sequentially from right to left, and the increase in length is equal to the diameter difference of the spheres 20 of different diameters in the storage channel 824 of the two adjacent release components 8.

[0044] When the ball 20 needs to be released, the starter motor 94 drives the rotating shaft 92 and the lever 93 to rotate synchronously, as shown in Figure 9. During the rotation, the rightmost lever 93 will first contact the top post 84 on the rightmost release assembly 8. Then, as shown in Figures 3-7, as the top post 84 moves, it will synchronously drive the seat 821 to move towards the inside of the connecting cylinder 71. When the seat 821 moves to the maximum moving distance, the release hole 826 is just inside the connecting cylinder 71. Under the impact of the medium, the ball 20 in the release hole 826 can be flushed away. At this time, the rightmost lever 93 gradually passes the top post 84 and contacts the top post 84. Upon disengagement, under the elastic force of spring 85, the top post 84 drives the seat 821 to quickly reset and withdraw the release hole 826 from the inside of the connecting cylinder 71, preventing the simultaneous flushing away of multiple balls 20 of the same diameter. After the rightmost lever 93 disengages from the top post 84, as the drive mechanism 9 continues to operate, the lever 93 in the middle of Figure 9 will contact the top post 84 on the middle release assembly 8, thereby releasing the larger-diameter balls 20 in the middle release assembly 8. Since the diameters of the balls 20 placed in different release assemblies 8 are inconsistent, the diameters of the release holes 826 on different release assemblies 8 are also inconsistent. The length of the lever 93 increases sequentially from right to left, and the increase in length is equal to the diameter difference of the balls 20 of different diameters in the storage channels 824 of two adjacent release assemblies 8. The purpose of this setting is to ensure that when releasing balls 20 of different diameters, the corresponding release holes 826 of different diameters can be pushed into the connecting cylinder 71. The ball 20 is positioned inside the connecting cylinder 71, and each release hole 826 can release only one ball 20 of the corresponding diameter at a time, so that multiple balls 20 of different diameters can enter the connecting cylinder 71.

[0045] The plate bundle 10 includes a corrugated plate 101, which is provided with a plurality of inter-plate channels 102, and a plurality of magnetic blocks 103 are embedded in the sidewalls of the inter-plate channels 102 at intervals.

[0046] Specifically, based on the instructions and specifications of the plate heat exchanger, the maintenance and cleaning cycles are determined. When maintenance of the plate heat exchanger is required, the drive mechanism 9 is activated to drive multiple different release components 8 to operate, releasing balls 20 of different diameters from the multiple different release components 8 into the interior of the connecting cylinder 71. The diameters of the multiple balls 20 increase sequentially, with the maximum diameter not exceeding the width of the inter-plate channel 102. Under the impact of the medium, the multiple balls 20 of different diameters will enter the inter-plate channel 102. If all the balls 20 are discharged from the inlet 5 or outlet 6, it indicates that the balls 20 are not stuck, and thus the corrugated plate 101 has not deformed. If some or all of the balls 20 are not discharged from the inlet 5 or outlet 6, it can be determined that the interior of the corrugated plate 101 is deformed, causing the width of the inter-plate channel 102 to narrow, thus preventing the balls 20 from being discharged. This locking mechanism allows staff to make a preliminary judgment on whether there is internal deformation of the corrugated plate 101 without disassembling the plate heat exchanger for inspection, which is more intuitive and convenient. In addition, the movement of multiple spheres 20 of different diameters in the inter-plate channel 102 enhances the turbulence of the medium, which is not only conducive to heat transfer, but also, when the spheres 20 rub or collide with the inter-plate channel 102, they will shake off some of the biofilm or dirt adsorbed on the side wall of the inter-plate channel 102 and discharge it with the medium, which can alleviate blockage, extend the cleaning cycle and reduce the amount of cleaning agent used, thus achieving energy saving, high efficiency and environmental protection.

[0047] To address the technical problem that direct measurement of magnetic field strength would cause interference when several magnetic blocks 103 are embedded in the sidewall of the inter-plate channel 102, making it impossible to accurately locate the deformation position of the corrugated plate 101, as shown in Figures 11-12, the following preferred technical solution is provided: The sphere 20 includes a sphere 201, the inner wall of the sphere 201 is coated with a magnetic layer 204, and polygonal magnetic blocks 202 are arranged inside the sphere 201. The polygonal magnetic blocks 202 are connected to the inner wall of the sphere 201 through a bracket 203.

[0048] The magnetic poles of the magnetic layer 204 and the polygonal magnetic block 202 are opposite, and the sphere 201 and the support 203 are tough, elastic and supportive. In the static state, the attraction between the magnetic layer 204 and the polygonal magnetic block 202 will not cause the sphere 20 to deform.

[0049] Specifically, since the sphere 20 has polygonal magnetic blocks 202 inside, when the sphere 20 moves within the inter-plate channel 102, it will attract the polygonal magnetic blocks 202 under the magnetic force of the magnetic blocks 103. Since several magnetic blocks 103 are spaced apart, the sphere 20 moves in a "Z"-shaped trajectory within the inter-plate channel 102, further enhancing the turbulence effect of the medium and the effect of shaking off biofilm or dirt adsorbed on the sidewalls of the inter-plate channel 102. In addition, when the corrugated plate 101 deforms and the inter-plate channel 102 narrows, jamming the sphere 20, the pressure of the medium will cause the sphere 201 and the polygonal magnetic blocks 202 to deform, causing the magnetic layer 204 and the polygonal magnetic blocks 202 to approach and attract each other. When the magnetic layer 204 and the polygonal magnetic blocks 202 are attracted together, a magnetic field superposition phenomenon occurs, further enhancing the magnetic layer 204. With the overall magnetic field strength enhanced by the polygonal magnetic block 202, the operator can use a field strength meter to test the magnetic field strength and mark the area with the strongest magnetic field to obtain the exact deformation location. Since several magnetic blocks 103 are embedded at intervals on the sidewall of the inter-plate channel 102, direct measurement of the magnetic field strength would cause interference. By using the aforementioned method to enhance the magnetic field strength, the magnetic field strength generated by the magnetic blocks 103 can be distinguished, achieving precise positioning and accurately determining the deformation location of the corrugated plate 101. Furthermore, due to the presence of multiple spheres 20 of different diameters, when the field strength meter detects multiple strong magnetic fields, it indicates that the corrugated plate 101 has multiple deformations or that multiple corrugated plates 101 have deformed. This setup not only assists operators in determining the deformation location of the corrugated plate 101 but also identifies multiple deformations or multiple corrugated plates 101, greatly improving work efficiency.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plate-and-shell heat exchanger for hydrogen production, comprising a shell (1) and a pair of legs (2) fixedly disposed on the circumferential sidewall of the shell (1), wherein an inlet (3) and an outlet (4) are respectively fixedly disposed on one end sidewall of the shell (1), and an inlet (5) and an outlet (6) are respectively fixedly disposed on the circumferential sidewall of the shell (1), characterized in that: The shell (1) is provided with a plate bundle (10) inside. A connecting component (7) is fixedly connected to the liquid inlet one (3) and the liquid inlet two (5). A number of release components (8) are provided on the connecting component (7). A number of spheres (20) are placed inside the release component (8). A driving mechanism (9) is fixedly provided on the connecting component (7). The sphere (20) includes a sphere (201). A magnetic layer (204) is coated on the inner wall of the sphere (201). A polygonal magnetic block (202) is provided inside the sphere (201). The polygonal magnetic block (202) is connected to the inner wall of the sphere (201) through a bracket (203).

2. A plate-and-shell heat exchanger for hydrogen production according to claim 1, characterized in that: The connecting assembly (7) includes a connecting cylinder (71), and a plurality of through grooves (72) are provided on the inner wall of the connecting cylinder (71).

3. A plate-and-shell heat exchanger for hydrogen production according to claim 2, characterized in that: The release assembly (8) includes a protective shell (81) fixedly installed, and the protective shell (81) and the connecting cylinder (71) are connected by a through groove (72). A slide block (82) is slidably installed inside the protective shell (81), and a pusher (83) is slidably installed inside the slide block (82). A top column (84) is fixedly installed on the side wall of the slide block (82), and the top column (84) is slidably installed through the side wall of the protective shell (81). The top column (84) and the side wall of the protective shell (81) are elastically connected by a spring (85).

4. A plate heat exchanger for hydrogen production according to claim 3, characterized in that: The protective shell (81) includes a shell (811), a relief groove (812) is provided on the top surface of the shell (811), a pair of sliding grooves (813) are symmetrically provided on the side wall of the inner cavity of the shell (811), and a relief groove (814) is provided on the side wall of the shell (811).

5. A plate heat exchanger for hydrogen production according to claim 4, characterized in that: The slide (82) includes a seat body (821). The two outer walls of the seat body (821) are fixedly installed with clips (828), and the clips (828) are slidably installed on the slide groove (813). The interior of the seat body (821) is provided with a feeding channel (822), a storage channel (824) and an installation groove (825), and the feeding channel (822), the storage channel (824) and the installation groove (825) are connected in sequence. The upper opening of the feeding channel (822) is fixedly installed with a feed inlet (823). The interior of the seat body (821) is also provided with a release hole (826), and the release hole (826) is connected to the storage channel (824). The side wall of the seat body (821) is provided with a long groove (827), and the long groove (827) is connected to the installation groove (825).

6. A plate heat exchanger for hydrogen production according to claim 5, characterized in that: push The feed piece (83) includes a T-shaped plate (831) that is slidably installed in the inner cavity of the mounting groove (825). The side wall of the T-shaped plate (831) is elastically connected to the side wall of the inner cavity of the mounting groove (825) by a spring (832). The far end of the T-shaped plate (831) is slidably disposed in the inner cavity of the storage channel (824). A pull rod (829) is fixedly installed on the side wall of the T-shaped plate (831), and the pull rod (829) is slidably disposed in the inner cavity of the long groove (827).

7. A plate heat exchanger for hydrogen production according to claim 2, characterized in that: The drive mechanism (9) includes a pair of fixed plates (91) fixedly installed on the side wall of the connecting cylinder (71). A rotating shaft (92) is rotatably installed on both fixed plates (91). A motor (94) is fixedly installed on the side wall of one of the fixed plates (91). The output end of the motor (94) is fixedly connected to the rotating shaft (92). Several levers (93) are fixedly installed on the outer circumference of the rotating shaft (92). The length of the levers (93) increases sequentially from right to left, and the increase in length is equal to the diameter difference of the spheres (20) of different diameters in the storage channel (824) of the two adjacent release components (8).

8. A plate heat exchanger for hydrogen production according to claim 1, characterized in that: The plate bundle (10) includes a corrugated plate (101), the corrugated plate (101) is provided with a number of inter-plate channels (102), and a number of magnetic blocks (103) are embedded in the side wall of the inter-plate channels (102) at intervals.

9. A plate heat exchanger for hydrogen production according to claim 1, characterized in that: The magnetic poles of the magnetic layer (204) and the polygonal magnetic block (202) are opposite.

10. A plate-and-shell heat exchanger for hydrogen production according to claim 1, characterized in that: The sphere (201) and the support (203) are tough, elastic and supportive, and in a silent state, the attraction between the magnetic layer (204) and the polygonal magnetic block (202) will not cause the sphere (20) to deform.

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