Solid oxide fuel cell (SOFC) natural gas normal-temperature desulfurization device

Abstract

The utility model relates to the technical field of natural gas desulfurization, and discloses an SOFC natural gas normal-temperature desulfurization device which comprises a treatment box, a sphere is movably sleeved with a top plate of the treatment box, the interior of the sphere is hollow, a storage box is fixedly connected to the upper surface of the treatment box, and a conveying assembly is arranged on the surface of the storage box. Through the cooperation of the motor, the toothed plate, the gear, the ball body and other structures, the mixing effect of a desulfurizing agent and gas is greatly improved, an activated carbon plate or other areas needing to be in contact with the desulfurizing agent can be sprayed more comprehensively, and the spraying efficiency is improved. And full contact of the natural gas and the desulfurizing agent is ensured, so that more sulfides react with the desulfurizing agent, the desulfurization efficiency is improved, and the spraying coverage range is expanded.

Description

Technical Field

[0001] This utility model relates to the field of natural gas desulfurization technology, specifically to an SOFC natural gas ambient temperature desulfurization device. Background Technology

[0002] Solid oxide fuel cells (SOFCs) are efficient and clean energy conversion devices that can directly convert the chemical energy of fuels such as natural gas into electrical energy. However, natural gas typically contains a certain amount of sulfides, such as hydrogen sulfide and mercaptans. These sulfides can severely poison the electrode materials and catalysts of SOFCs, leading to decreased battery performance and shortened lifespan.

[0003] Currently, some SOFC natural gas desulfurization processes are carried out at high temperatures, requiring a large amount of energy to raise the temperature. Furthermore, the equipment is complex and has high operating costs. In addition, the high-temperature desulfurization process may adversely affect other components in the natural gas, reducing its quality. Alternatively, SOFC natural gas can be desulfurized using a spray method. However, some existing spray equipment uses a fixed spray angle, which prevents the desulfurization liquid from fully contacting the SOFC natural gas, resulting in low desulfurization efficiency and poor performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an SOFC natural gas ambient temperature desulfurization device to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an SOFC natural gas ambient temperature desulfurization device, comprising a processing box, a sphere movably fitted inside the top plate of the processing box, the sphere being hollow inside, a storage box fixedly connected to the upper surface of the processing box, a conveying assembly provided on the surface of the storage box, a spray head communicating with the interior of the sphere fixedly connected to one side surface of the sphere located inside the processing box, a cavity opened inside the top plate of the processing box, gears fixedly fitted on one side surface of the two spheres located inside the cavity, a toothed plate slidably connected inside the cavity, teeth provided on both sides of the toothed plate, the toothed plate meshing with the two gears, a guide groove opened in the bottom wall of the cavity, and a driving assembly provided inside the guide groove.

[0006] Preferably, the drive assembly includes a reciprocating lead screw, which is rotatably connected inside the guide groove. A reciprocating lead screw sleeve is threaded onto the outside of the reciprocating lead screw, and the reciprocating lead screw sleeve is slidably connected inside the guide groove. The reciprocating lead screw sleeve is fixedly connected to the toothed plate.

[0007] Preferably, a motor is fixedly connected to the front surface of the processing box, the output shaft of the motor rotates through the interior of the processing box, an extension rod is fixedly connected to the output shaft of the motor, the extension rod rotates through the interior of the guide groove and is fixedly connected to the reciprocating lead screw.

[0008] Preferably, the conveying assembly includes a first connecting pipe, which is fixedly connected to the surface of the storage box and extends into the interior of the storage box. The surfaces of the two spheres are fixedly connected to a second connecting pipe that communicates with the interior. A rotating flange is provided between the first and second connecting pipes on the same side.

[0009] Preferably, an inlet pipe is fixedly connected to the upper end face of the storage box, and the inlet pipe is connected to the inside of the storage box.

[0010] Preferably, the interior of the treatment box is slidably connected to an activated carbon plate extending outwards, and an installation plate is fixedly connected to one end of the activated carbon plate outside the treatment box. An installation screw is threadedly connected to the interior of the installation plate, and the installation screw is threadedly connected to the treatment box.

[0011] Preferably, the processing box has two support rods fixedly connected inside.

[0012] Preferably, an air inlet pipe and an air outlet pipe are fixedly connected to the two sides of the processing box, and both the air inlet pipe and the air outlet pipe are connected to the interior of the processing box.

[0013] Compared with the prior art, this utility model provides an SOFC natural gas ambient temperature desulfurization device, which has the following beneficial effects:

[0014] 1. This SOFC natural gas ambient temperature desulfurization device, through the cooperation of motor, toothed plate, gear, ball and other structures, greatly improves the mixing effect of desulfurizing agent and gas. Whether it is the activated carbon plate or other areas that need to come into contact with desulfurizing agent, they can be sprayed more comprehensively, ensuring that natural gas and desulfurizing agent are in full contact, so that more sulfides react with desulfurizing agent, thereby improving desulfurization efficiency and expanding the spray coverage.

[0015] 2. This SOFC natural gas ambient temperature desulfurization device, with its structure including activated carbon plates, mounting plates, and mounting bolts, facilitates the replacement of activated carbon plates by staff. Furthermore, the use of spray heads further enhances the adsorption effect of the activated carbon plates, making it highly practical and achieving good desulfurization results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an SOFC natural gas ambient temperature desulfurization device according to the present invention;

[0017] Figure 2This is a first schematic cross-sectional view of the processing box of this utility model;

[0018] Figure 3 This is a second schematic cross-sectional view of the processing box of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the sphere of this utility model.

[0021] In the diagram: 1. Processing box; 2. Sphere; 3. Storage box; 4. Spray head; 5. Cavity; 6. Gear; 7. Gear plate; 8. Guide groove; 9. Reciprocating screw; 10. Reciprocating screw sleeve; 11. Extension rod; 12. Motor; 13. First connecting pipe; 14. Second connecting pipe; 15. Rotating flange; 16. Liquid inlet pipe; 17. Air outlet pipe; 18. Activated carbon plate; 19. Mounting plate; 20. Mounting screw; 21. Support rod; 22. Air inlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: an SOFC natural gas ambient temperature desulfurization device, including a processing box 1, a sphere 2 movably fitted inside the top plate of the processing box 1, the sphere 2 being hollow inside, a storage box 3 fixedly connected to the upper surface of the processing box 1, a conveying assembly provided on the surface of the storage box 3, a spray head 4 fixedly connected to one side surface of the sphere 2 inside the processing box 1 and communicating with the interior, a cavity 5 opened inside the top plate of the processing box 1, gears 6 fixedly fitted on one side surface of the two spheres 2 inside the cavity 5, a toothed plate 7 slidably connected inside the cavity 5, teeth provided on both sides of the toothed plate 7, the toothed plate 7 and the two gears 6 meshing and connected, a guide groove 8 opened on the bottom wall of the cavity 5, and a driving assembly provided inside the guide groove 8.

[0024] The storage tank 3 contains a desulfurizing agent and a pump for conveying the desulfurizing agent.

[0025] The drive assembly includes a reciprocating lead screw 9, which is rotatably connected inside the guide groove 8. A reciprocating lead screw sleeve 10 is threaded onto the outside of the reciprocating lead screw 9 and is slidably connected inside the guide groove 8. The reciprocating lead screw sleeve 10 is fixedly connected to the toothed plate 7.

[0026] The reciprocating lead screw 9 and the reciprocating lead screw sleeve 10 are existing structures, so they will not be described in detail.

[0027] A motor 12 is fixedly connected to the front surface of the processing box 1. The output shaft of the motor 12 rotates and passes through the interior of the processing box 1. An extension rod 11 is fixedly connected to the output shaft of the motor 12. The extension rod 11 rotates and passes through the interior of the guide groove 8 and is fixedly connected to the reciprocating lead screw 9.

[0028] Among them, the motor 12 is also equipped with a power supply, wires, controller and microcomputer, etc. Since they are not the main structures, they will not be described further.

[0029] The conveying assembly includes a first connecting pipe 13, which is fixedly connected to the surface of the storage box 3 and extends into the interior of the storage box 3. The first connecting pipe 13 is connected to the pump inside the storage box 3. The surfaces of the two spheres 2 are fixedly connected to a second connecting pipe 14 that communicates with the interior. A rotating flange 15 is provided between the first connecting pipe 13 and the second connecting pipe 14 on the same side.

[0030] An inlet pipe 16 is fixedly connected to the upper end face of the storage tank 3. The inlet pipe 16 is connected to the inside of the storage tank 3 and is connected to an external pipeline for transporting desulfurizing agent.

[0031] An activated carbon plate 18 extends outward from the interior of the treatment box 1. An installation plate 19 is fixedly connected to one end of the activated carbon plate 18 located outside the treatment box 1. An installation screw 20 is threadedly connected inside the installation plate 19 and is threadedly connected to the treatment box 1.

[0032] The processing box 1 has two fixed support rods 21 inside, which support the activated carbon plate 18.

[0033] An air inlet pipe 22 and an air outlet pipe 17 are fixedly connected to the two sides of the processing box 1, respectively. Both the air inlet pipe 22 and the air outlet pipe 17 are connected to the interior of the processing box 1.

[0034] Working principle:

[0035] When the SOFC natural gas ambient temperature desulfurization device is in use, the SOFC natural gas to be treated is connected to the inlet pipe 22, and the subsequent gas will enter the interior of the treatment tank 1 through the inlet pipe 22. At the same time, the pump inside the storage tank 3 will be started. At this time, the desulfurizing agent will enter the interior of the sphere 2 through the first connecting pipe 13, the rotating flange 15 and the second connecting pipe 14. The subsequent desulfurizing agent will be sprayed out through the spray head 4.

[0036] Subsequently, the switch of motor 12 is turned on. At this time, the rotation of the output shaft of motor 12 will drive the rotation of extension rod 11. The rotation of extension rod 11 will drive the rotation of reciprocating lead screw sleeve 99. The rotation of reciprocating lead screw 99 will drive the reciprocating lead screw sleeve 10 to slide inside the guide groove 8. The movement of reciprocating lead screw sleeve 10 will drive the movement of toothed plate 7. Since toothed plate 7 and gear 6 are meshed, the reciprocating movement of toothed plate 7 will drive gear 6 to rotate reciprocally. The rotation of gear 6 will drive the rotation of ball 2. The rotation of ball 2 will drive the eccentric spray head 4 to move, thereby achieving spraying of different positions inside the treatment box 1 and increasing the spraying range.

[0037] Meanwhile, the gas entering the treatment box 1 will first pass through the activated carbon plate 18 for desulfurization. At this time, due to the setting of the activated carbon plate 18, when the SOFC natural gas passes through the activated carbon plate 18, the sulfide molecules in the natural gas will be adsorbed on the pore surface of the activated carbon plate 18, thereby achieving preliminary desulfurization treatment. Subsequently, the gas will come into contact with the desulfurizing agent sprayed from the spray head 4.

[0038] The desulfurizing agent sprayed from the spray head 4 will also come into contact with the activated carbon plate 18 and will seep down through the activated carbon plate 18. When it seeps through the activated carbon plate 18, it can form a synergistic effect with the adsorption of activated carbon, and further react with the sulfides already adsorbed on the activated carbon plate 18, thereby improving the overall desulfurization efficiency and enhancing the adsorption capacity of the activated carbon plate 18 for sulfides in natural gas. At the same time, the flow of the desulfurizing agent can carry impurities out of the pores of the activated carbon plate 18, keeping the pores of the activated carbon plate 18 open, restoring and enhancing its adsorption capacity for sulfides. Subsequently, the gas after desulfurization treatment will be discharged through the gas outlet pipe 17.

[0039] When the activated carbon plate 18 needs to be replaced in the future, it can be disassembled simply by rotating the installation screws 20 one by one.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A SOFC natural gas ambient temperature desulfurization device, comprising a processing tank (1), characterized in that: A sphere (2) is movably fitted inside the top plate of the processing box (1). The sphere (2) is hollow inside. A storage box (3) is fixedly connected to the upper surface of the processing box (1). A conveying component is provided on the surface of the storage box (3). A spray head (4) communicating with the inside is fixedly connected to one side surface of the sphere (2) inside the processing box (1). A cavity (5) is opened inside the top plate of the processing box (1). Gears (6) are fixedly fitted on one side surface of the two spheres (2) inside the cavity (5). A toothed plate (7) is slidably connected inside the cavity (5). Teeth are provided on both sides of the toothed plate (7). The toothed plate (7) and the two gears (6) are meshed. A guide groove (8) is opened on the bottom wall of the cavity (5). A drive component is provided inside the guide groove (8).

2. The SOFC natural gas ambient temperature desulfurization device according to claim 1, characterized in that: The drive assembly includes a reciprocating lead screw (9), which is rotatably connected inside the guide groove (8). A reciprocating lead screw sleeve (10) is threaded onto the outside of the reciprocating lead screw (9). The reciprocating lead screw sleeve (10) is slidably connected inside the guide groove (8). The reciprocating lead screw sleeve (10) is fixedly connected to the toothed plate (7).

3. The SOFC natural gas ambient temperature desulfurization device according to claim 2, characterized in that: A motor (12) is fixedly connected to the front surface of the processing box (1). The output shaft of the motor (12) rotates through the interior of the processing box (1). An extension rod (11) is fixedly connected to the output shaft of the motor (12). The extension rod (11) rotates through the interior of the guide groove (8) and is fixedly connected to the reciprocating screw (9).

4. The SOFC natural gas ambient temperature desulfurization device according to claim 1, characterized in that: The conveying assembly includes a first connecting pipe (13), which is fixedly connected to the surface of the storage box (3) and extends into the interior of the storage box (3). The surfaces of the two spheres (2) are fixedly connected to a second connecting pipe (14) that communicates with the interior. A rotating flange (15) is provided between the first connecting pipe (13) and the second connecting pipe (14) on the same side.

5. The SOFC natural gas ambient temperature desulfurization device according to claim 4, characterized in that: The upper end face of the storage box (3) is fixedly connected to the liquid inlet pipe (16), and the liquid inlet pipe (16) is connected to the inside of the storage box (3).

6. The SOFC natural gas ambient temperature desulfurization device according to claim 1, characterized in that: An activated carbon plate (18) extending outward is slidably connected inside the treatment box (1). An installation plate (19) is fixedly connected to one end of the activated carbon plate (18) outside the treatment box (1). An installation screw (20) is threadedly connected inside the installation plate (19). The installation screw (20) is threadedly connected to the treatment box (1).

7. The SOFC natural gas ambient temperature desulfurization device according to claim 6, characterized in that: The processing box (1) has two fixed support rods (21) inside.

8. The SOFC natural gas ambient temperature desulfurization device according to claim 7, characterized in that: An air inlet pipe (22) and an air outlet pipe (17) are fixedly connected to the two sides of the processing box (1), respectively. Both the air inlet pipe (22) and the air outlet pipe (17) are connected to the interior of the processing box (1).

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