Desulfurization equipment for hydrogen production from natural gas

Abstract

The invention discloses desulfurization equipment for hydrogen production from natural gas, which comprises two supporting pipes arranged in parallel, an inner pipe group is arranged on the inner sides of the supporting pipes, and the inner pipe group is filled with a desulfurizing agent; the two supporting pipes are both installed on the connecting mechanism, a supporting shaft is arranged in the middle of the connecting mechanism in a penetrating mode, supporting frames are arranged at the two ends of the supporting shaft, and the two supporting pipes rotate around the shaft to replace the positions. End shells are detachably arranged at the two ends of one supporting pipe in a communicating mode, and a valve body is arranged on the side edge of one end shell in a communicating mode; the two sets of desulfurization equipment arranged on the natural gas channel in parallel are arranged, the desulfurization treatment of the natural gas can be realized under the cooperation of the two sets of desulfurization equipment, and when one desulfurization equipment stops working and a desulfurization agent is replaced, the other desulfurization equipment can still realize the desulfurization of the natural gas, so that the influence of the replacement of the desulfurization agent is reduced, and the desulfurization efficiency is improved. The problems that existing desulfurization equipment is complex in desulfurizer replacement operation, the natural gas desulfurization procedure needs to be suspended, and the natural gas hydrogen production efficiency is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of desulfurization technology, specifically to a desulfurization device for hydrogen production from natural gas. Background Technology

[0002] Industrial gases such as natural gas, biogas, coke oven gas, and fuel gas often contain hydrogen sulfide. Natural gas-to-hydrogen processes typically employ steam methane reforming (MR) or autothermal reforming (ATR), which rely on nickel-based or other metal catalysts. Sulfides in natural gas (such as hydrogen sulfide and mercaptans) can bind to the active sites of catalysts, leading to permanent poisoning and deactivation, significantly reducing reaction efficiency and increasing production costs. Furthermore, sulfides, especially hydrogen sulfide, produce acidic substances like sulfuric acid at high temperatures or when reacting with steam, corroding pipes, reactors, and other equipment, shortening equipment lifespan, and increasing maintenance costs. Therefore, sulfides need to be separated beforehand in the natural gas-to-hydrogen process. Currently, using existing natural gas desulfurizers is a common method. This method relies on the reaction or adsorption of desulfurizing agents with sulfides in natural gas to remove them, thus meeting the feed gas requirements of the hydrogen production process.

[0003] However, existing natural gas desulfurizers have a significant problem during use: the desulfurizing agent needs to be replaced periodically. When the desulfurizing agent reaches saturation or becomes ineffective, its surface active sites are completely occupied by sulfides and impurities, causing irreversible collapse of the crystal structure and resulting in a precipitous drop in chemical adsorption capacity. According to industry data, traditional iron oxide-based desulfurizers have an average operating cycle of only 30-45 days when treating high-sulfur natural gas (H2S content > 200 ppm), far below the requirements for continuous industrial production.

[0004] The complexity of the replacement operation further exacerbated the production interruption losses. First, operators must strictly follow confined space operation procedures. After the equipment has cooled to below 40°C and the oxygen content meets the standards, the desulfurization tower, weighing several tons, must be disassembled as a whole using specialized hoisting equipment. The desulfurizing agent adhering inside has formed a hard ferric sulfate crystal layer and a viscous organic sulfur polymer due to long-term sulfidation reactions. Conventional scraping methods are difficult to remove it, often requiring a combination of high-pressure water jet (pressure ≥20MPa) and mechanical crushing for dual treatment.

[0005] During the filling process, the new activated carbon-based desulfurizer has a lower filling density (0.55-0.65 g / cm³). 3The requirements for uniformity are extremely high, necessitating the use of a vibratory packing machine to fill the system in 5-8 layers in a stepped manner, with wire mesh laid between each layer to prevent flow deviation. After reinstallation, a 48-hour nitrogen purging, pressure test (holding pressure at 1.25 times the design pressure for 30 minutes), and performance calibration are required. The entire downtime maintenance cycle lasts 7-10 days, during which the resulting production capacity loss can reach 15%-20% of the monthly output of a single unit.

[0006] For the entire desulfurization process, frequent replacement of the desulfurizing agent has a series of adverse effects. Each replacement consumes a significant amount of time, reducing the effective operating time of the desulfurization equipment and thus lowering the overall efficiency of natural gas-to-hydrogen production.

[0007] In summary, existing natural gas desulfurizers suffer from cumbersome operations and long processing times when replacing the desulfurizing agent, which seriously affects the efficiency of natural gas to hydrogen production. Therefore, improvements should be made to the desulfurization equipment used in natural gas to hydrogen production to address the shortcomings of existing equipment when replacing the desulfurizing agent, thereby improving desulfurization efficiency and production efficiency. Summary of the Invention

[0008] The purpose of this invention is to provide a desulfurization device for hydrogen production from natural gas, which aims to improve the existing desulfurization equipment by addressing the problems of complicated desulfurization agent replacement operations, the need to suspend the natural gas desulfurization process, and the resulting reduction in natural gas hydrogen production efficiency.

[0009] The present invention is implemented as follows: a desulfurization device for hydrogen production from natural gas includes two parallel support pipes, an inner pipe assembly is provided inside the support pipes, and a desulfurizing agent is filled inside the inner pipe assembly; both support pipes are mounted on a connecting mechanism, a support shaft is provided through the middle of the connecting mechanism, and support frames are provided at both ends of the support shaft; the two support pipes can rotate around the shaft to change positions; an end shell is provided at both ends of one of the support pipes, and a valve body is provided on the side of one of the end shells; two sets of desulfurization devices are provided, and the two valve bodies of the two sets of desulfurization devices are connected and installed on the same natural gas inlet pipeline; the end shell of the two sets of desulfurization devices away from the valve body is installed on the natural gas delivery pipeline.

[0010] As one embodiment of the present invention, the inner tube assembly includes an inner tube body, a flow divider plate and a mesh disposed at both ends of the inner tube body, the flow divider plate being provided with multiple air holes, and the flow divider plate being installed on the air inlet end of the inner tube body.

[0011] In one embodiment of the present invention, the outer diameter of the diverter plate and the mesh is equal to the inner diameter of the inner tube, and the sides of the diverter plate and the mesh that are far apart from each other are flush with the two end faces of the inner tube. Meanwhile, on the sides of the diverter plate and the mesh that are close to each other, an annular baffle is bolted on and fixedly installed on the inner tube.

[0012] In one embodiment of the present invention, an ear plate is fixedly provided at one end of the inner wall of the support tube, and a connecting plate is fixedly provided at the end of the inner tube body; the inner tube body is sealed inside the support tube, and the connecting plate is connected to the ear plate by bolts.

[0013] In one embodiment of the present invention, flanges are fixedly provided at the ends of the support tube and the end shell that are close to each other. Two annular plates are symmetrically sleeved on the support tube. Insert pins are fixedly installed on the sides of the two annular plates that are far apart from each other. The insert pins pass through the two flanges and nuts are sleeved at the threaded ends of the insert pins.

[0014] In one embodiment of the present invention, a sealing ring is provided on the side of the flange of the end shell near the support pipe, and the sealing ring is fitted to the flange of the support pipe; a bellows is provided at the end of the end shell away from the support pipe, and the bellows is connected to a natural gas pipeline or valve body.

[0015] In one embodiment of the present invention, the connecting mechanism includes a connecting pipe, two fixed arc plates respectively fixedly installed on both sides of the connecting pipe, and clamping arc plates respectively disposed on the sides of the fixed arc plates; one end of the clamping arc plate and the fixed arc plate are hinged together, and the other end of the clamping arc plate and the fixed arc plate are connected by bolts; the support pipe passes through the space formed by the fixed arc plate and the clamping arc plate.

[0016] In one embodiment of the present invention, the support shaft is provided through a bearing and a connecting tube, and a sleeve is fitted on the support shaft. A brake rod is provided through the protruding end of the sleeve, and the end of the brake rod is inserted into the brake hole of the connecting mechanism.

[0017] In one embodiment of the present invention, a baffle is fixedly provided on the side of the brake lever near the connecting pipe, and a spring in a compressed state is sleeved on the brake lever. The two ends of the spring are in contact with the sleeve and the baffle, respectively, while the baffle is in contact with the connecting mechanism.

[0018] As one embodiment of the present invention, the support frame includes a base frame and a lifting plate. The bottom of the lifting plate is inserted into the insertion hole of the base frame, and the bolt thread provided through the top of the base frame is inserted into one of the threaded holes of the lifting plate. The connecting seats sleeved at both ends of the support shaft are respectively installed on the top of the lifting plates of the two sets of support frames.

[0019] The beneficial effects of this invention are: 1. This invention sets up two sets of desulfurization equipment connected in parallel on the natural gas channel. The desulfurization of natural gas can be achieved with the cooperation of the two sets of desulfurization equipment. Moreover, when one desulfurization equipment stops working and the desulfurizing agent is replaced, the other desulfurization equipment can still achieve the desulfurization of natural gas, reducing the impact of desulfurizing agent replacement on the overall process of natural gas to hydrogen production. 2. The separation device set up in this invention includes two interchangeable support pipes and is equipped with two sets of inner pipe groups. When desulfurization is carried out by connecting one of the inner pipe groups and support pipes to the natural gas channel, it is convenient for the staff to disassemble the other support pipe and inner pipe group to replace the desulfurizing agent, thereby further reducing the impact of desulfurizing agent replacement on the efficiency of natural gas to hydrogen production. 3. The present invention is provided with two end shells, and the ends of the two end shells that are far apart from each other are connected to the gas pipeline or valve body through a bellows, so as to realize the movable setting of the end shells. After the support pipe moves between the two end shells, the end shells are forced to approach the support pipe and squeeze the sealing ring, so as to achieve a sealed contact between the support pipe and the end shells. 4. The support shaft of the present invention is stably installed on the support frame and is connected through the bearing to the connecting mechanism. While the connecting mechanism is stably supported, it facilitates the rotation of the connecting mechanism to change the position of the two support tubes. A movable brake rod is provided on the support shaft and is inserted into the brake hole of the connecting mechanism, so that the support tubes after the position is changed can be stably installed. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and characteristics of the invention more apparent. The illustrative embodiments of the invention, along with their descriptions, are used to explain the invention and do not constitute an undue limitation of the invention.

[0021] Figure 1 This is a first structural schematic diagram of the entire invention; Figure 2 This is a second structural schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the third structure of the entire invention; Figure 4 This is a schematic diagram of the fourth structure of the entire invention; Figure 5 This is a structural schematic diagram of the support frame, support shaft, and connecting mechanism of the present invention; Figure 6 This is a schematic diagram of the connection mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the support shaft of the present invention; Figure 8 This is a schematic diagram of the support frame of the present invention; Figure 9 This is a schematic diagram of the structure of the support tube and inner tube assembly of the present invention; Figure 10 This is a schematic diagram of the support tube structure of the present invention; Figure 11 This is a first structural schematic diagram of the inner tube assembly of the present invention; Figure 12This is a schematic diagram of the second structure of the inner tube assembly of the present invention; Figure 13 This is a schematic diagram of the end shell structure of the present invention.

[0022] In the diagram: Support pipe 1; Annular plate 11; Ear plate 12; Insert post 13; End shell 2; Sealing ring 21; Bellows 22; Valve body 3; Support frame 4; Base frame 41; Insert hole 42; Threaded hole 43; Lifting plate 44; Support shaft 5; Connecting seat 51; Threaded groove 52; Sleeve 53; Brake rod 54; Baffle plate 55; Spring 56; Connecting mechanism 6; Connecting pipe 61; Fixed arc plate 62; Clamping arc plate 63; Brake hole 64; Inner pipe assembly 7; Inner pipe body 71; Annular baffle 72; Diverter plate 73; Connecting plate 74; Mesh 75. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Example 1: To reduce the impact of desulfurizer replacement on natural gas-to-hydrogen production, this example provides a new desulfurization device. When using this device, two sets of desulfurization equipment are installed in parallel and interconnected on the natural gas pipeline, simultaneously desulfurizing the natural gas. When desulfurizer replacement is required, the inlet of the desulfurization equipment requiring replacement is closed, while the other equipment continues to operate normally, thus enabling desulfurizer replacement to be completed while natural gas is continuously desulfurized. Furthermore, this desulfurization device is designed for quick disassembly and replacement of the desulfurizer, further reducing the impact of desulfurizer replacement on the efficiency of natural gas-to-hydrogen production.

[0026] like Figure 1-13 As shown, specifically, the desulfurization equipment includes a support shaft 5, a connecting mechanism 6, two support pipes 1, two sets of inner pipe assemblies 7, two sets of support frames 4, and two end shells 2, etc.

[0027] like Figure 1-5As shown, the support shaft 5 is connected through the middle of the connecting mechanism 6 via a bearing, and two sets of support frames 4 are respectively installed at both ends of the support shaft 5, allowing the connecting mechanism 6 to rotate around the shaft and be stably positioned at one of its heights. Two support tubes 1 are respectively installed at both ends of the connecting mechanism 6, and the relative positions of the two support tubes 1 can be adjusted when the connecting mechanism 6 rotates.

[0028] like Figure 1-5 As shown, gas pipelines are connected to each other on opposite sides of the two end shells 2. One of the support pipes 1 is connected between the two end shells 2, and an inner pipe assembly 7 is installed inside this support pipe 1. The inner pipe assembly 7 is filled with desulfurizing agent. After the support pipe 1 containing the desulfurizing agent is connected to the natural gas pipeline, the natural gas can be desulfurized through the desulfurizing agent. The other inner pipe assembly 7 is not connected to the natural gas flow channel, which facilitates the cleaning and replacement of the desulfurizing agent in the inner pipe assembly 7 by the staff during normal desulfurization. In addition, a valve body 3 is installed on the gas pipeline of the end shell 2 at the gas inlet end of the support pipe 1. The valve bodies 3 of the two desulfurization equipment are connected to the same natural gas pipeline. The valve body 3 can control the opening and closing of the gas inlet end of the support pipe 1. For example, when the desulfurizing agent needs to be replaced, the valve body 3 is used to cut off the gas inlet end of the support pipe 1, and the support pipe 1 and end shell 2 are disassembled to release the restriction of the support pipe 1. Then, the connecting mechanism 6 is rotated to adjust the position of the two support pipes 1, so that the other support pipe 1 containing the inner pipe group 7 and the desulfurizing agent is connected to the natural gas pipeline to achieve desulfurization treatment. At the same time, the staff disassembles the support pipe 1 that needs to be replaced with desulfurizing agent to disconnect it from the connecting mechanism 6. Finally, the replacement of the desulfurizing agent in the support pipe 1 is completed.

[0029] like Figure 6 As shown, in order to stably install the support pipe 1 on the connecting mechanism 6, the connecting mechanism 6 includes a connecting pipe 61, a fixed arc plate 62, and a clamping arc plate 63. Two sets of fixed arc plates 62 are respectively fixedly installed on both sides of the connecting pipe 61, and a clamping arc plate 63 is hinged at the end of each fixed arc plate 62. At the same time, the free end of the clamping arc plate 63 can be connected to the fixed arc plate 62 by bolts. With the cooperation of the clamping arc plate 63 and the fixed arc plate 62, the support pipe 1 can be stably installed, and the disassembly of the support pipe 1 is convenient.

[0030] like Figure 7 As shown, in order to allow the two support tubes 1 to be swapped and to ensure the stable installation of the swapped support tubes 1, a support shaft 5 is installed through a connecting tube 61 via a bearing. A sleeve 53 is fitted onto the support shaft 5, and a bolt threaded through the sleeve 53 is inserted into the threaded groove 52 of the support shaft 5. A brake rod 54 is installed through the protruding end of the sleeve 53, and the end of the brake rod 54 is inserted into the brake hole 64 of the connecting mechanism 6, which can control the stable placement of the connecting mechanism 6. When it is necessary to swap the positions of the support tubes 1, pulling the brake rod 54 out of the brake hole 64 can release the restriction of the connecting mechanism 6.

[0031] like Figure 7 As shown, specifically, a baffle 55 is fixedly installed on the side of the brake lever 54 near the connecting pipe 61, and a compressed spring 56 is sleeved on the brake lever 54. The two ends of the spring 56 are in contact with the sleeve 53 and the baffle 55, respectively. Under the action of the spring 56, the baffle 55 contacts the connecting mechanism 6, and the brake lever 54 is inserted into the brake hole 64. When it is necessary to control the rotation of the connecting mechanism 6, pulling the brake lever 54 compresses the spring 56 again, which can disengage the brake lever 54 from the brake hole 64.

[0032] like Figure 7 As shown, in order to keep the support shaft 5 stationary and stably mounted on the support frame 4, a connecting seat 51 is sleeved on the end of the support shaft 5. The connecting seat 51 and the support shaft 5 are connected by a locating pin or the like, which can restrict the rotation of the support shaft 5. In addition, the connecting seat 51 is mounted on the top of the support frame 4.

[0033] like Figure 11 , Figure 12 As shown, in order to fill the desulfurizing agent into the inner pipe assembly 7, the inner pipe assembly 7 includes an inner pipe body 71, a diversion plate 73 and a grid 75 disposed at both ends of the inner pipe body 71. The inner pipe body 71, the diversion plate 73 and the grid 75 together form the filling space for the desulfurizing agent, and the diversion plate 73 and the grid 75 are detachable and installable, which makes it convenient for workers to disassemble and replace the desulfurizing agent.

[0034] like Figure 11 , Figure 12 As shown, the diversion plate 73 is provided with multiple air holes, and the diversion plate 73 is installed on the air inlet end of the inner pipe 71, which can guide the natural gas to be distributed more evenly in the desulfurizing agent, thereby achieving effective desulfurization of natural gas.

[0035] like Figure 11 , Figure 12 As shown, to enable the detachable installation of the flow divider 73 and the grid 75, annular baffles 72 are bolted to the sides of the flow divider 73 and the grid 75 that are close to each other. The annular baffles 72 are fixedly installed on the inner tube body 71, and the flow divider 73 and the grid 75 can be detached by removing the bolts. In addition, the outer diameter of the flow divider 73 and the grid 75 is equal to the inner diameter of the inner tube body 71, and the sides of the flow divider 73 and the grid 75 that are far from each other are flush with the two end faces of the inner tube body 71.

[0036] like Figure 11-12As shown, to ensure the inner tube assembly 7 is stably installed inside the support tube 1, an ear plate 12 is fixedly provided at one end of the inner wall of the support tube 1, and a connecting plate 74 is fixedly provided at the end of the inner tube body 71. When the inner tube body 71 is located inside the support tube 1, the connecting plate 74 is bolted to fit the ear plate 12, which can control the stable installation of the inner tube body 71 relative to the support tube 1. In addition, a sealing layer can be provided on the contact surface between the inner tube body 71 and the support tube 1 to achieve sealed contact between the inner tube body 71 and the support tube 1.

[0037] like Figure 10 , Figure 13 As shown, to ensure the stable installation of the support pipe 1 between the two end shells 2, flanges are fixedly installed at the ends of the support pipe 1 and the end shells 2 that are close to each other. Two annular plates 11 are symmetrically fitted onto the support pipe 1, and insert pins 13 are fixedly installed on the opposite sides of the two annular plates 11. When the support pipe 1 moves between the two end shells 2, it pushes the annular plates 11 to move, forcing the insert pins 13 to pass through the channels of the flanges of the support pipe 1 and the end shells 2. Nuts are fitted at the threaded ends of the insert pins 13; rotating the nuts forces the two flanges closer together for connection. To ensure a sealed connection between the support pipe 1 and the end shells 2, a sealing ring 21 is provided on the side of the flange of the end shell 2 adjacent to the support pipe 1, and the sealing ring 21 is fitted to fit the flange of the support pipe 1.

[0038] like Figure 10 , Figure 13 As shown, in order to compress the sealing ring 21 by the relative movement of the end shell 2 and the support pipe 1, and then seal the connection between the support pipe 1 and the end shell 2 by the sealing ring 21, a bellows 22 is provided at the end of the end shell 2 away from the support pipe 1. The bellows 22 is connected to the gas transmission pipeline or valve body 3 of natural gas. The deformable characteristics of the bellows 22 enable the movable setting of the end shell 2.

[0039] Example 2 like Figure 8 As shown, based on Embodiment 1, in order to adjust the height of the support tube 1 as needed, the support frame 4 includes a base frame 41 and a lifting plate 44. The bottom of the lifting plate 44 is inserted into the insertion hole 42 of the base frame 41, and multiple threaded holes 43 are provided on the lifting plate 44 along its height direction. At the same time, a channel is provided on the top of the base frame 41. When the bottom of the lifting plate 44 is inserted into the base frame 41, and the channel is aligned with one of the threaded holes, the bolt passes through the channel and is threaded into the threaded hole 43. This can restrict the stable installation of the lifting plate 44 relative to the base frame 41 and facilitate the adjustment of the position of the lifting plate 44 relative to the base frame 41 as needed.

[0040] In addition, the connecting seats 51 sleeved at both ends of the support shaft 5 are respectively installed on the top of the lifting plates 44 of the two sets of support frames 4.

[0041] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0042] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A desulfurization device for hydrogen production from natural gas, characterized in that, It includes two parallel support pipes (1), an inner pipe group (7) is provided inside the support pipe (1), and the inside of the inner pipe group (7) is filled with desulfurizing agent; both support pipes (1) are installed on a connecting mechanism (6), a support shaft (5) is provided through the middle of the connecting mechanism (6), and support frames (4) are provided at both ends of the support shaft (5). The two support pipes (1) can rotate around the shaft to change positions; an end shell (2) is provided at both ends of one of the support pipes (1) and is detachably connected; a valve body (3) is provided on the side of one of the end shells (2); two sets of desulfurization equipment are provided, and the two valve bodies (3) of the two sets of desulfurization equipment are connected and installed on the same natural gas pipeline. In the two sets of desulfurization equipment, the end shell (2) away from the valve body (3) is installed on the natural gas delivery pipeline.

2. The desulfurization equipment for hydrogen production from natural gas according to claim 1, characterized in that, The inner tube assembly (7) includes an inner tube body (71), a flow divider plate (73) and a mesh (75) disposed at both ends of the inner tube body (71). The flow divider plate (73) is provided with multiple air holes and is installed on the air inlet end of the inner tube body (71).

3. The desulfurization equipment for hydrogen production from natural gas according to claim 2, characterized in that, The outer diameter of the diverter plate (73) and the mesh (75) is equal to the inner diameter of the inner tube (71), and the sides of the diverter plate (73) and the mesh (75) that are far apart from each other are flush with the two end faces of the inner tube (71). At the same time, annular baffles (72) are bolted to the sides of the diverter plate (73) and the mesh (75) that are close to each other. The annular baffles (72) are fixedly installed on the inner tube (71).

4. A desulfurization device for hydrogen production from natural gas according to claim 2, characterized in that, An ear plate (12) is fixedly provided at one end of the inner wall of the support tube (1), and a connecting plate (74) is fixedly provided at the end of the inner tube body (71); the inner tube body (71) is sealed inside the support tube (1), and the connecting plate (74) is connected to the ear plate (12) by bolts.

5. A desulfurization device for hydrogen production from natural gas according to claim 1, characterized in that, Flanges are fixedly provided at the ends of the support tube (1) and the end shell (2) that are close to each other. Two annular plates (11) are symmetrically sleeved on the support tube (1). Insert pins (13) are fixedly installed on the side of the two annular plates (11) that are far apart from each other. The insert pins (13) pass through the two flanges and nuts are sleeved on the threaded end of the insert pins (13).

6. A desulfurization device for hydrogen production from natural gas according to claim 5, characterized in that, A sealing ring (21) is provided on the side of the flange of the end shell (2) near the support pipe (1), and the sealing ring (21) is fitted to the flange of the support pipe (1); a bellows (22) is provided at the end of the end shell (2) away from the support pipe (1), and the bellows (22) is connected to the natural gas pipeline or valve body (3).

7. A desulfurization device for hydrogen production from natural gas according to claim 1, characterized in that, The connecting mechanism (6) includes a connecting pipe (61), two fixed arc plates (62) respectively fixedly installed on both sides of the connecting pipe (61), and clamping arc plates (63) respectively arranged on the sides of the fixed arc plates (62); one end of the clamping arc plate (63) and the fixed arc plate (62) are hinged together, and the other end of the clamping arc plate (63) and the fixed arc plate (62) are connected by bolts; the support pipe (1) passes through the space formed by the fixed arc plate (62) and the clamping arc plate (63).

8. A desulfurization device for hydrogen production from natural gas according to claim 7, characterized in that, The support shaft (5) is installed through the bearing through the connecting pipe (61). A sleeve (53) is sleeved on the support shaft (5). A brake rod (54) is installed through the protruding end of the sleeve (53). The end of the brake rod (54) is inserted into the brake hole (64) of the connecting mechanism (6).

9. A desulfurization device for hydrogen production from natural gas according to claim 8, characterized in that, A baffle (55) is fixedly installed on the side of the brake lever (54) near the connecting pipe (61), and a spring (56) in a compressed state is sleeved on the brake lever (54). The two ends of the spring (56) are in contact with the sleeve (53) and the baffle (55) respectively, while the baffle (55) is in contact with the connecting mechanism (6).

10. A desulfurization device for hydrogen production from natural gas according to claim 1, characterized in that, The support frame (4) includes a base frame (41) and a lifting plate (44). The bottom of the lifting plate (44) is inserted into the insertion hole (42) of the base frame (41), and the bolt thread provided through the top of the base frame (41) is inserted into one of the threaded holes (43) of the lifting plate (44). The connecting seats (51) sleeved at both ends of the support shaft (5) are respectively installed on the top of the lifting plate (44) of the two sets of support frames (4).

Images