A desulfurization device for hydrogen production from natural gas

Abstract

The application discloses a desulfurization equipment for hydrogen production from natural gas, which comprises two parallel supporting pipes, an inner pipe group is arranged on the inner side of the supporting pipe, and a desulfurizer is filled in the inner pipe group; the two supporting pipes are installed on a connecting mechanism, a supporting shaft is arranged in the middle of the connecting mechanism, supporting frames are arranged at the two ends of the supporting shaft, and the two supporting pipes rotate around the shaft to change positions; the two ends of one of the supporting pipes are communicated and detachably provided with end shells, and the side of one of the end shells is communicated and provided with a valve body; the desulfurization equipment is provided with two sets of parallel desulfurization equipment arranged on the natural gas channel, the desulfurization of the natural gas can be realized under the cooperation of the two sets of desulfurization equipment, and when one of the desulfurization equipment stops working and the desulfurizer is replaced, the other desulfurization equipment can still realize the desulfurization of the natural gas, the influence of the replacement of the desulfurizer is reduced, the problem that the replacement of the desulfurizer of the existing desulfurization equipment is complicated, the natural gas desulfurization process needs to be paused, and the hydrogen production efficiency of the natural gas is reduced is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of desulfurization, in particular to a desulfurization equipment for hydrogen production from natural gas. BACKGROUND

[0002] Industrial gases such as natural gas, biogas, coke oven gas, fuel gas, etc. often contain hydrogen sulfide components. Natural gas hydrogen production usually adopts steam methane reforming (MR) or autothermal reforming (ATR) process, which relies on nickel-based or other metal catalysts. Sulfides (such as hydrogen sulfide, mercaptans, etc.) in natural gas will combine with catalyst active sites, causing permanent poisoning and deactivation of the catalyst, significantly reducing reaction efficiency and increasing production costs. At the same time, sulfides, especially hydrogen sulfide, will produce acidic substances such as sulfuric acid when reacting at high temperatures or with water vapor, corroding pipelines, reactors and other equipment, shortening the service life of the device and increasing maintenance costs. Therefore, it is necessary to separate sulfides in advance in the process of natural gas hydrogen production. At present, using existing natural gas desulfurizers for desulfurization treatment is a common method. This method mainly relies on the reaction or adsorption of desulfurizing agents with sulfides in natural gas to remove sulfides to meet the requirements of hydrogen production process for raw gas.

[0003] However, there is a significant problem in the use of existing natural gas desulfurizers, which is the need for regular replacement of desulfurizing agents. When the desulfurizing agent reaches saturation or failure, its surface active sites are completely occupied by sulfides and impurities, and the crystal structure collapses irreversibly, resulting in a cliff-like drop in chemical adsorption capacity. According to industry statistics, traditional iron oxide-based desulfurizing agents have an average operating cycle of only 30-45 days when treating high-sulfur natural gas (H2S content > 200 ppm), which is far below the continuous production requirements of industrialization.

[0004] The complexity of replacement operations further exacerbates production disruption losses. First, operators must strictly follow confined space operation procedures and use special lifting equipment to remove the desulfurization tower as a whole after the equipment is cooled to below 40°C and the oxygen content meets the standards. The desulfurizing agent attached inside, due to long-term sulfidation reaction, forms a hard iron sulfate salt crystalline layer and a viscous organic sulfur polymer, which is difficult to remove by conventional scraping methods and often requires high-pressure water jet (pressure ≥ 20 MPa) combined with mechanical crushing.

[0005] In the filling link, the new active carbon-based desulfurizing agent has a filling density (0.55-0.65 g / cm 3) and uniformity requirements are extremely high, need to help vibration filler 5-8 layers of filling step, each layer interval laid silk screen to prevent flow deviation. Reinstallation, also need to carry out 48 hours of nitrogen replacement, pressure test (1.25 times design pressure pressure 30 minutes) and performance calibration, the whole shutdown maintenance cycle is as long as 7-10 days, the production capacity loss caused during the period can reach 15%-20% of the monthly output of a single device.

[0006] For the entire desulfurization process, multiple changes of the desulfurizer will bring a series of adverse effects. Each time the desulfurizer is replaced, a large amount of time is consumed, resulting in a decrease in the effective operation time of the desulfurization equipment, thereby reducing the overall efficiency of the hydrogen production from natural gas.

[0007] In summary, the existing natural gas desulfurizer has problems such as complicated operation and long time consumption when replacing the desulfurizer, which seriously affects the efficiency of hydrogen production from natural gas. Therefore, the desulfurization equipment for hydrogen production from natural gas is improved to solve the problems of the existing equipment when replacing the desulfurizer, improve the desulfurization efficiency, and improve the production efficiency. SUMMARY

[0008] The purpose of the present application is to provide a desulfurization equipment for hydrogen production from natural gas, which aims to improve the problem of complicated operation of the existing desulfurization equipment when replacing the desulfurizer, the need to suspend the natural gas desulfurization process, and the reduction of the efficiency of hydrogen production from natural gas.

[0009] The present application is implemented as follows: a desulfurization equipment for hydrogen production from natural gas, comprising two parallelly arranged support pipes, an inner pipe group is arranged on the inner side of the support pipe, and a desulfurizer is filled in the inner pipe group; both support pipes are installed on a connecting mechanism, a support shaft is penetrated in the middle of the connecting mechanism, support frames are arranged at both ends of the support shaft, and both support pipes rotate around the shaft to change positions; detachable end housings are arranged at both ends of one of the support pipes, a valve body is arranged on the side of one of the end housings; the desulfurization equipment is provided with two sets, the two valve bodies of the two sets of desulfurization equipment are installed on the same natural gas inlet pipeline, and the end housing of the desulfurization equipment far from the valve body is installed on a natural gas outlet pipeline.

[0010] As an embodiment of the present application, the inner pipe group comprises an inner pipe body, a flow dividing plate and a grid arranged at both ends of the inner pipe body, a plurality of gas holes are arranged on the flow dividing plate, and the flow dividing plate is installed on the gas inlet end of the inner pipe body.

[0011] As an embodiment of the present application, the outer diameter of the flow dividing plate and the grid is equal to the inner diameter of the inner pipe body, the side surfaces of the flow dividing plate and the grid away from each other are flush with the end surfaces of the inner pipe body, and annular baffles are connected to the side of the flow dividing plate and the grid close to each other through bolts, and the annular baffles are fixedly installed on the inner pipe body.

[0012] As one of the embodiments of the present application, one end of the inner side wall of the support pipe is fixedly provided with an ear plate, and a connecting plate is fixedly arranged at the end of the inner pipe body; the inner pipe body is sealingly arranged in the inner side of the support pipe, and the connecting plate is arranged by being connected to the ear plate through bolts.

[0013] As one of the embodiments of the present application, flanges are fixedly arranged at the end portions of the support pipe and the end shell, two annular plates are symmetrically arranged on the support pipe, and a plug post is fixedly arranged at the side of each of the two annular plates away from each other, the plug post penetrates through the two flanges, and a nut is arranged on the threaded end of the plug post.

[0014] As one of the embodiments of the present application, a sealing ring is arranged on the side of the flange of the end shell close to the support pipe, and the sealing ring is arranged by being attached to the flange of the support pipe; a bellows is arranged at the end of the end shell away from the support pipe, and the bellows is connected to the natural gas pipeline or the valve body.

[0015] As one of the embodiments of the present application, the connecting mechanism comprises a connecting pipe, two fixed arc plates fixedly arranged on the two sides of the connecting pipe, and clamping arc plates arranged on the side edges of the fixed arc plates; one end of the clamping arc plate and the fixed arc plate is hingedly connected, and the other end of the clamping arc plate and the fixed arc plate is connected through bolts; the support pipe penetrates through the space formed by the fixed arc plate and the clamping arc plate.

[0016] As one of the embodiments of the present application, the support shaft penetrates through the connecting pipe through a bearing, a sleeve is arranged on the support shaft, a protruding end of the sleeve is provided with a brake lever, and the end of the brake lever is inserted into the brake hole of the connecting mechanism.

[0017] As one of the embodiments of the present application, a stop disc is fixedly arranged on the side of the brake lever close to the connecting pipe, a spring in a compressed state is arranged on the brake lever, and the two ends of the spring are in contact with the sleeve and the stop disc respectively, and the stop disc is in contact with the connecting mechanism.

[0018] As one of the embodiments of the present application, the support frame comprises a bottom frame and a lifting plate, the bottom of the lifting plate is inserted into the insertion hole of the bottom frame, and the threaded bolt penetrating through the top of the bottom frame is screwed into one of the threaded holes of the lifting plate; the connecting seats arranged on the two ends of the support shaft are respectively arranged on the top of the lifting plates of the two sets of support frames.

[0019] The present application has the following beneficial effects:

[0020] 1. The present application provides two sets of desulfurization equipment arranged in parallel on the natural gas passage, which can realize desulfurization treatment of natural gas under the cooperation of the two sets of desulfurization equipment, and when one of the desulfurization equipment stops working and the desulfurizer is replaced, the other desulfurization equipment can still realize desulfurization of natural gas, thereby reducing the influence of desulfurizer replacement on the overall process of hydrogen production from natural gas;

[0021] 2、The detachable device is provided with two support pipes which can be exchanged in position, and is equipped with two sets of inner pipe groups, when one set of inner pipe groups and the support pipe access the natural gas channel to realize desulfurization treatment, the staff can disassemble the other support pipe and the inner pipe group to realize replacement of the desulfurizer, and the influence of replacement of the desulfurizer on the hydrogen production efficiency of the natural gas is further reduced;

[0022] 3、The two end housings are connected with the gas conveying pipeline or the valve body through the bellows at the ends away from each other, the movable arrangement of the end housings is realized, so that the end housings are forced to be close to the support pipe after the support pipe moves to the space between the two end housings, and the sealing ring is pressed, and the sealing contact between the support pipe and the end housing is realized;

[0023] 4、The support shaft is stably arranged on the support frame, and is connected with the penetrating connecting mechanism through the bearing, the rotation of the connecting mechanism is facilitated to realize the exchange of the positions of the two support pipes, the movable brake rod is arranged on the support shaft, and the brake rod is inserted into the brake hole of the connecting mechanism, so that the support pipe after the position exchange is stably arranged. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the application, and make the purpose, features and characteristics of the application more apparent. The illustrative embodiments of the drawings of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application.

[0025] Figure 1 is a first structural schematic view of the whole application;

[0026] Figure 2 is a second structural schematic view of the whole application;

[0027] Figure 3 is a third structural schematic view of the whole application;

[0028] Figure 4 is a fourth structural schematic view of the whole application;

[0029] Figure 5 is a structural schematic view of the support frame, the support shaft and the connecting mechanism of the application;

[0030] Figure 6 is a structural schematic view of the connecting mechanism of the application;

[0031] Figure 7 is a structural schematic view of the support shaft of the application;

[0032] Figure 8 is a structural schematic view of the support frame of the application;

[0033] Figure 9is a structural schematic diagram of the support pipe and the inner pipe group of the present application;

[0034] Figure 10 is a structural schematic diagram of the support pipe of the present application;

[0035] Figure 11 is a first structural schematic diagram of the inner pipe group of the present application;

[0036] Figure 12 is a second structural schematic diagram of the inner pipe group of the present application;

[0037] Figure 13 is a structural schematic diagram of the end shell of the present application.

[0038] In the figure: support pipe 1; annular plate 11; ear plate 12; plug post 13; end shell 2; sealing ring 21; corrugated pipe 22; valve body 3; support frame 4; bottom frame 41; plug hole 42; threaded hole 43; lifting plate 44; support shaft 5; connecting seat 51; threaded groove 52; sleeve 53; brake lever 54; baffle disc 55; spring 56; connecting mechanism 6; connecting pipe 61; fixed arc plate 62; clamping arc plate 63; brake hole 64; inner pipe group 7; inner pipe body 71; annular baffle 72; shunt plate 73; connecting plate 74; grid 75. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0040] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in one specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0041] Embodiment 1: In order to reduce the influence of replacing the desulfurizing agent on hydrogen production from natural gas, the present embodiment provides a new desulfurization device. When the desulfurization device is used, two sets of desulfurization devices are installed in parallel and in communication with each other on a natural gas conveying pipeline, and the two sets of desulfurization devices simultaneously desulfurize the natural gas. When it is necessary to replace the desulfurizing agent, the gas inlet end of the desulfurization device that needs to be replaced is closed, and the other desulfurization device is working normally, so that the replacement of the desulfurizing agent can be completed under the condition that the natural gas is continuously desulfurized. In addition, the desulfurization device is provided with a structure for quickly disassembling and replacing the desulfurizing agent, further reducing the influence of the replacement of the desulfurizing agent on the hydrogen production efficiency from natural gas.

[0042] As Figures 1-13 shown, specifically, the desulfurization equipment includes a support shaft 5, a set of connecting mechanisms 6, two support pipes 1, two sets of inner pipe groups 7, two sets of support frames 4, two end housings 2, etc.

[0043] As Figures 1-5 shown, the support shaft 5 is connected through bearings and arranged in the middle of the connecting mechanism 6, and the two sets of support frames 4 are respectively installed at the two ends of the support shaft 5, so that the connecting mechanism 6 can be stably arranged at one height when rotating around the shaft. The two support pipes 1 are respectively installed at the two ends of the connecting mechanism 6, and the relative positions of the two support pipes 1 can be adjusted when the connecting mechanism 6 rotates.

[0044] As Figures 1-5 shown, the two end housings 2 are respectively provided with gas conveying pipes on the sides away from each other, and one of the support pipes 1 is installed between the two end housings 2 and the inner pipe group 7 is installed in the support pipe 1, and the inner pipe group 7 is filled with desulfurizing agent. After the support pipe 1 with the desulfurizing agent is connected to the natural gas pipeline, the desulfurization of the natural gas can be realized through the desulfurizing agent. The other inner pipe group 7 has not been connected to the natural gas flow channel, which can facilitate the cleaning and replacement of the desulfurizing agent in the inner pipe group 7 when the desulfurization process is normally carried out. In addition, the valve body 3 is installed on the gas conveying pipe of the end housing 2 installed at the gas inlet end of the support pipe 1, and the valve bodies 3 of the two sets of desulfurization equipment are connected to the same natural gas inlet pipeline, so that the opening and closing of the gas inlet end of the support pipe 1 can be controlled through the valve body 3. For example, when the desulfurizing agent needs to be replaced, the gas inlet end of the support pipe 1 is cut off through the valve body 3, and the support pipe 1 and the end housing 2 are disassembled to remove the restriction of the support pipe 1. Then, the position of the two support pipes 1 is adjusted by rotating the connecting mechanism 6, so that the other support pipe 1 with the inner pipe group 7 and the desulfurizing agent is connected to the natural gas conveying pipeline to realize desulfurization. At the same time, the staff disassembles the support pipe 1 that needs to be replaced to remove it from the connecting mechanism 6, and finally completes the replacement of the desulfurizing agent in the support pipe 1.

[0045] As Figure 6 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. The two sets of fixed arc plates 62 are respectively fixedly installed on the two sides of the connecting pipe 61, and the clamping arc plate 63 is hingedly arranged at the end of each fixed arc plate 62. The free end of the clamping arc plate 63 can be connected to the fixed arc plate 62 through a bolt, so that the support pipe 1 can be stably installed under the cooperation of the clamping arc plate 63 and the fixed arc plate 62, and the disassembly of the support pipe 1 is facilitated.

[0046] As Figure 7As shown, in order to realize the exchange of the positions of the two support pipes 1 and to stably arrange the exchanged support pipes 1, the support shaft 5 is arranged through the connecting pipe 61 by a bearing, a sleeve 53 is sleeved on the support shaft 5, and bolts arranged through the sleeve 53 are screwed into the threaded grooves 52 of the support shaft 5. The protruding end of the sleeve 53 is arranged through a brake lever 54, the end of the brake lever 54 is inserted into the brake hole 64 of the connecting mechanism 6, and the connecting mechanism 6 can be stably placed by being controlled. When it is needed to exchange the positions of the support pipes 1, the brake lever 54 is pulled out of the brake hole 64 to release the restriction of the connecting mechanism 6.

[0047] As shown in Figure 7 , specifically, the brake lever 54 is fixedly arranged with a baffle 55 on the side close to 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, under the action of the spring 56, the baffle 55 is in contact with the connecting mechanism 6, and the brake lever 54 is inserted into the brake hole 64. When it is needed to control the rotation of the connecting mechanism 6, the spring 56 is compressed again by pulling the brake lever 54, so that the brake lever 54 is separated from the brake hole 64.

[0048] As shown in Figure 7 , in order to stably and statically install the support shaft 5 on the support frame 4, a connecting seat 51 is sleeved on the end of the support shaft 5, and the connecting seat 51 and the support shaft 5 are connected by a positioning pin or the like to limit the rotation of the support shaft 5. In addition, the connecting seat 51 is installed on the top of the support frame 4.

[0049] As shown in Figure 11 , Figure 12 , in order to be able to fill the desulfurizing agent in the inner pipe group 7, the inner pipe group 7 includes an inner pipe body 71, a flow dividing plate 73 and a grid 75 arranged at both ends of the inner pipe body 71, the inner pipe body 71, the flow dividing plate 73 and the grid 75 jointly constitute a filling space of the desulfurizing agent, and the flow dividing plate 73 and the grid 75 are detachably installed, so as to facilitate the staff to disassemble and assemble to complete the replacement of the desulfurizing agent.

[0050] As shown in Figure 11 , Figure 12 , a plurality of air holes are arranged on the flow dividing plate 73, and the flow dividing plate 73 is installed on the gas inlet end of the inner pipe body 71, so as to guide the natural gas to be more uniformly distributed in the desulfurizing agent, and to realize the effective desulfurization of the natural gas.

[0051] As shown in Figure 11 , Figure 12As shown, in order to realize detachable installation of the flow distribution plate 73 and the grid 75, the annular baffle 72 is connected to one side of the flow distribution plate 73 and the grid 75 close to each other by bolts, and the annular baffle 72 is fixedly installed on the inner pipe body 71, so that the detachable installation of the flow distribution plate 73 and the grid 75 can be realized by detaching the bolts. In addition, the outer diameter of the flow distribution plate 73 and the grid 75 is equal to the inner diameter of the inner pipe body 71, and the side away from each other of the flow distribution plate 73 and the grid 75 is flush with the two end faces of the inner pipe body 71.

[0052] As shown in the figure, Figures 11-12 In order to stably install the inner pipe group 7 in the support pipe 1, one end of the inner side wall of the support pipe 1 is fixedly provided with an ear plate 12, and a connecting plate 74 is fixedly provided at the end of the inner pipe body 71. When the inner pipe body 71 is arranged in the inner side of the support pipe 1, the connecting plate 74 is arranged by being connected to the ear plate 12 by bolts, so that the stable installation of the inner pipe body 71 relative to the support pipe 1 can be controlled. In addition, a sealing layer can be provided on the contact surface of the inner pipe body 71 and the support pipe 1 to realize the sealed contact of the inner pipe body 71 and the support pipe 1.

[0053] As shown in the figure, Figure 10 , Figure 13 In order to stably install the support pipe 1 between the two end shells 2, flanges are fixedly provided at the end of the support pipe 1 and the end shell 2 close to each other, and two annular plates 11 are symmetrically arranged on the support pipe 1, and the side away from each other of the two annular plates 11 is fixedly installed with a plug column 13. When the support pipe 1 moves between the two end shells 2, the annular plate 11 is pushed to move, forcing the plug column 13 to penetrate the hole of the flange of the support pipe 1 and the end shell 2, and a nut is arranged on the threaded end of the plug column 13, and rotating the nut can force the two flanges to approach and connect. In order to seal the connection of the support pipe 1 and the end shell 2, a sealing ring 21 is arranged on the side of the flange of the end shell 2 close to the support pipe 1, and the sealing ring 21 is arranged close to the flange of the support pipe 1.

[0054] As shown in the figure, Figure 10 , Figure 13 In order to be able to extrude the sealing ring 21 by the relative movement of the end shell 2 and the support pipe 1, and then seal the connection of the support pipe 1 and the end shell 2 through the sealing ring 21, a bellows 22 is provided on the end of the end shell 2 away from the support pipe 1, and the bellows 22 is connected with the gas pipeline or the valve body 3 of the natural gas, and the movable arrangement of the end shell 2 is realized through the deformable characteristic of the bellows 22.

[0055] Example 2

[0056] As shown in the figure, Figure 8As shown, in order to adjust the height of the support pipe 1 according to the requirement, the support frame 4 comprises a bottom frame 41 and a lifting plate 44, the bottom of the lifting plate 44 is inserted into the insertion hole 42 of the bottom frame 41, and a plurality of threaded holes 43 are arranged on the lifting plate 44 along the height direction of the lifting plate 44, and a hole is arranged on the top of the bottom frame 41. When the bottom of the lifting plate 44 is inserted into the bottom frame 41, and the hole is opposite to one of the threaded holes, the bolt is inserted into the threaded hole 43 after penetrating the hole, the stable installation of the lifting plate 44 relative to the bottom frame 41 can be limited, and the position of the lifting plate 44 relative to the bottom frame 41 can be adjusted according to the requirement.

[0057] In addition, the connecting seat 51 sleeved on both ends of the support shaft 5 is respectively installed on the top of the lifting plate 44 of the two sets of support frames 4.

[0058] In addition, the technical solutions among the various embodiments of the present application can be combined with each other, but it must be based on that the ordinary skilled in the art can realize, when the combination of the technical solutions appears contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present application.

[0059] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that, for the ordinary skilled in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to 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; both ends of one of the support pipes (1) are detachably provided with end shells (2), and the side of one of the end shells (2) is provided with a valve body (3); 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).

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