Desulfurization tank for hydrogen production

Abstract

The utility model discloses a desulfurization tank for hydrogen production, which belongs to the field of hydrogen production and comprises supporting legs, a desulfurization box fixedly connected to the tops of the supporting legs, a desulfurization tank arranged in the desulfurization box, a desulfurization component arranged in the desulfurization tank, ventilation components arranged at the bottom and the top of the desulfurization box, and a stirring component arranged in the desulfurization tank. The stirring assembly comprises a rotating motor fixedly connected to the top of the desulfurization box, the output end of the rotating motor is connected with a rotating shaft through a coupler, the outer wall of the rotating shaft is fixedly connected with multiple sets of first stirring plates and second stirring plates which are arranged in the circumferential direction, and the first stirring plates and the second stirring plates are arranged in a staggered mode. The device has the beneficial effects that a rotating motor is started and drives a rotating shaft to rotate, and the rotating shaft drives a first stirring plate and a second stirring plate to rotate, so that a desulfurizing agent in the desulfurizing tank collides and flows up and down, the desulfurizing agent is in full contact with hydrogen, the overall utilization rate of the desulfurizing agent is increased, and the desulfurizing effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production, and in particular to a desulfurization tank for hydrogen production. Background Technology

[0002] Hydrogen is a highly flammable, colorless, transparent, odorless, and tasteless gas. It is the least dense gas known in the world and is used as a filling gas for airships and hydrogen balloons. As the substance with the smallest relative molecular mass, hydrogen is primarily used as a reducing agent. During hydrogen production, it needs to undergo desulfurization in a desulfurization tank.

[0003] A search revealed Chinese patent publication number CN221267689U, which discloses a desulfurization tank for hydrogen production. The tank includes a desulfurization tank and an inlet pipe. A cross-shaped plate is placed in the center of the desulfurization tank, with its outer end fitting against the inner wall. A push rod motor is fixedly installed in the center of the lower surface of the tank. A cover plate is positioned at the top of the tank. An outlet pipe is connected to the top of one side wall of the tank. A drive motor is fixedly installed on the top of the drive shaft of the push rod motor, and a support plate is fixedly installed on the top of the drive shaft of the drive motor. A desulfurizing agent block is added between the support plate and the cross-shaped plate. Furthermore, a sealing ring is fixedly installed on the outer edge of the pallet. During the hydrogen desulfurization process, the desulfurizing agent blocks are separated and piled up around the cross plate, and supported by the pallet. Whenever a batch of desulfurizing agent blocks becomes unusable, the drive motor rotates the cross plate, aligning another batch of desulfurizing agent blocks with the air inlet for use. Compared with the existing method, there is no need to manually adjust the position of the desulfurizing agent blocks, reducing the burden of manpower. At the same time, the push rod motor lifts the pallet, making the pallet flush with the upper surface of the desulfurization tank, and then the cross plate is disassembled, allowing the desulfurizing agent blocks to be recycled to be pushed out in batches, facilitating subsequent cleaning.

[0004] However, the utilization rate of the desulfurizing agent blocks closer to the intake pipe is higher than that of the desulfurizing agent blocks farther away from the intake pipe, and the utilization rate of the lower layer of desulfurizing agent blocks is higher than that of the upper layer of desulfurizing agent blocks, resulting in a lower overall utilization rate of the desulfurizing agent blocks. Utility Model Content

[0005] The purpose of this invention is to provide a desulfurization tank for hydrogen production in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A desulfurization tank for hydrogen production includes a support leg, a desulfurization box fixedly connected to the top of the support leg, a desulfurization trough inside the desulfurization box, a desulfurization assembly inside the desulfurization trough, a ventilation assembly at the bottom and top of the desulfurization box, and a stirring assembly inside the desulfurization trough. The stirring assembly includes a rotary motor fixedly connected to the top of the desulfurization box, the output end of the rotary motor being connected to a rotary shaft located inside the desulfurization trough via a coupling, and multiple sets of circumferentially arranged first and second stirring plates fixedly connected to the outer wall of the rotary shaft. The first and second stirring plates are staggered and inclined in opposite directions.

[0008] Preferably, two sets of desulfurization tanks are symmetrically arranged, and each set of desulfurization tanks is equipped with a stirring component.

[0009] Preferably, the ventilation assembly includes two branch air inlet pipes fixedly connected to the bottom of the desulfurization box. The inner bottom wall of the desulfurization box has an air inlet hole that connects the desulfurization tank to the branch air inlet pipes. The bottom of the branch air inlet pipe is fixedly connected to a main air inlet pipe. The top of the desulfurization box is fixedly connected to two branch air outlet pipes, which are connected to different desulfurization tanks. The top of the branch air outlet pipe is fixedly connected to a main air outlet pipe. Each branch air inlet pipe and branch air outlet pipe is equipped with a solenoid valve.

[0010] Preferably, the desulfurization assembly includes a feeding pipe, which is fixedly connected to the top of the desulfurization box and communicates with the desulfurization tank. The desulfurization tank is filled with granular desulfurizing agent. A sealing plug is threaded to the top of the feeding pipe. A discharge pipe is fixedly connected to the side wall of the desulfurization box and communicates with the inside of the desulfurization tank. The discharge pipe is located at the bottom of the desulfurization tank.

[0011] Preferably, a filter plate is fixedly connected to the air inlet hole in the bottom wall of the desulfurization tank, and the filter plate is located at the bottom of the desulfurization tank.

[0012] Preferably, the inner bottom wall of the desulfurization box is inclined, and the discharge pipe is located at the lower end of the inner bottom wall of the desulfurization box.

[0013] The beneficial effects are as follows: when the rotary motor is started, the rotary motor drives the rotary shaft to rotate, and the rotary shaft drives the first and second stirring plates to rotate, so that the desulfurizing agent in the desulfurization tank collides and flows between the upper and lower layers, so that the desulfurizing agent and hydrogen come into more complete contact, thereby improving the overall utilization rate of the desulfurizing agent and ensuring the desulfurization effect.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of a desulfurization tank for hydrogen production according to the present invention;

[0017] Figure 2 This is a front view of a desulfurization tank for hydrogen production according to the present invention;

[0018] Figure 3 This is a top view of a desulfurization tank for hydrogen production according to the present invention;

[0019] Figure 4 This is a front view of the internal structure of the desulfurization box of a desulfurization tank for hydrogen production according to this utility model;

[0020] Figure 5 This utility model describes a desulfurization tank for hydrogen production. Figure 4 Enlarged view of point A.

[0021] The reference numerals in the attached drawings are explained as follows: 101, support leg; 102, desulfurization box; 103, desulfurization tank; 201, branch inlet pipe; 202, main inlet pipe; 203, branch outlet pipe; 204, main outlet pipe; 301, feed pipe; 302, sealing plug; 303, discharge pipe; 304, filter plate; 401, rotary motor; 402, rotating shaft; 403, first stirring plate; 404, second stirring plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-5As shown, a desulfurization tank for hydrogen production includes a support leg 101. The bottom of the support leg 101 is provided with an anti-slip pad, and the top of the support leg 101 is fixedly connected to a desulfurization box 102. A desulfurization tank 103 is opened in the desulfurization box 102. Two sets of desulfurization tanks 103 are symmetrically opened, and the two desulfurization tanks 103 are used alternately to improve working efficiency.

[0026] A desulfurization assembly is installed inside the desulfurization tank 103. The desulfurization assembly includes a feeding pipe 301, which is fixedly connected to the top of the desulfurization box 102 and communicates with the desulfurization tank 103. The desulfurization tank 103 is filled with granular desulfurizing agent. A sealing plug 302 is threadedly connected to the top of the feeding pipe 301. A discharge pipe 303 is fixedly connected to the side wall of the desulfurization box 102 and communicates with the inside of the desulfurization tank 103. The discharge pipe 303 is located at the bottom of the desulfurization tank 103. The inner bottom wall of the desulfurization box 102 is inclined to facilitate material guidance. The discharge pipe 303 is located at the lower end of the inner bottom wall of the desulfurization box 102 and is equipped with a solenoid valve.

[0027] Ventilation components are provided at the bottom and top of the desulfurization box 102. The ventilation components include two branch air inlet pipes 201 fixedly connected to the bottom of the desulfurization box 102. An air inlet hole is opened in the inner bottom wall of the desulfurization box 102 to connect the desulfurization tank 103 with the branch air inlet pipe 201. A filter plate 304 is fixedly connected in the air inlet hole opened in the inner bottom wall of the desulfurization box 102. The filter plate 304 isolates the desulfurizing agent in the desulfurization tank 103 to prevent the desulfurizing agent from entering the air inlet hole. The filter plate 304 is located at the bottom of the desulfurization tank 103. A main air inlet pipe 202 is fixedly connected to the bottom of the branch air inlet pipe 201. Two branch air outlet pipes 203 are fixedly connected to the top of the desulfurization box 102. The branch air outlet pipes 203 are connected to different desulfurization tanks 103. A main air outlet pipe 204 is fixedly connected to the top of the branch air outlet pipes 203. A solenoid valve is provided in each branch air inlet pipe 201 and branch air outlet pipe 203.

[0028] Each desulfurization tank 103 is equipped with a stirring assembly, which includes a rotary motor 401 bolted to the top of the desulfurization box 102. The output end of the rotary motor 401 is connected to a rotary shaft 402 located in the desulfurization tank 103 via a coupling. Multiple sets of circumferentially arranged first stirring plates 403 and second stirring plates 404 are fixedly connected to the outer wall of the rotary shaft 402. The first stirring plates 403 and second stirring plates 404 are staggered and tilted in opposite directions. When the rotary motor 401 drives the rotary shaft 402 to rotate the first stirring plates 403 and second stirring plates 404, the first stirring plates 403 and second stirring plates 404 can cause the desulfurizing agent in the desulfurization tank 103 to collide and flow in the upper and lower layers, tumbling and mixing the desulfurizing agent, thereby improving the overall utilization rate of the desulfurizing agent.

[0029] Working principle: An appropriate amount of granular desulfurizing agent is added to the desulfurization tank 103 through the feeding pipe 301. Then, the sealing plug 302 is screwed into the feeding pipe 301 to seal it. The solenoid valves in the branch inlet pipe 201 and branch outlet pipe 203, which are connected to one of the desulfurization tanks 103, are opened. Hydrogen gas enters the branch inlet pipe 201 through the main inlet pipe 202, and then enters the desulfurization tank 103 through the inlet hole. After being desulfurized by the desulfurizing agent, the hydrogen gas enters the main outlet pipe 204 through the branch outlet pipe 203 and is then discharged through the main outlet pipe 204. At the same time as desulfurization, the rotary motor 401 above the corresponding desulfurization tank 103 is started. The rotary motor 401 drives the rotary shaft 402 to rotate, and the rotary shaft 402 drives the first stirring plate 403 and the second stirring plate 404 to rotate, causing the desulfurizing agent in the desulfurization tank 103 to collide and flow in the upper and lower layers, thus desulfurizing the agent. The mixture is agitated to ensure more thorough contact between the desulfurizing agent and hydrogen, thereby improving the overall utilization rate of the desulfurizing agent and guaranteeing the desulfurization effect. The desulfurizing agent is blocked by the filter plate 304 to prevent it from entering the air inlet. The two desulfurization tanks 103 are used alternately. When the desulfurizing agent in one desulfurization tank 103 has reached the standard usage time, the solenoid valves in the corresponding branch air inlet pipe 201 and branch air outlet pipe 203 are closed, and the solenoid valves in the other branch air inlet pipe 201 and branch air outlet pipe 203 are opened to allow hydrogen to enter the other desulfurization tank 103 for continued desulfurization. When it is necessary to replace the desulfurizing agent in the desulfurization tank 103, the solenoid valve in the discharge pipe 303 is opened to allow the desulfurizing agent in the desulfurization tank 103 to be discharged through the discharge pipe 303. After the desulfurizing agent has been completely discharged, the solenoid valve in the discharge pipe 303 is closed, and new desulfurizing agent is added to the desulfurization tank 103 through the feed pipe 301.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A desulfurization tank for hydrogen production, comprising a supporting leg (101), a top of the supporting leg (101) is fixedly connected with a desulfurization box (102), a desulfurization tank (103) is formed in the desulfurization box (102), a desulfurization assembly is arranged in the desulfurization tank (103), and a ventilation assembly is arranged at the bottom and the top of the desulfurization box (102), characterized in that: The desulfurization tank (103) is provided with a stirring assembly, the stirring assembly comprises a rotating motor (401) fixedly connected to the top of the desulfurization tank (102), the output end of the rotating motor (401) is connected with a rotating shaft (402) located in the desulfurization tank (103) through a shaft coupling, the outer wall of the rotating shaft (402) is fixedly connected with a plurality of groups of circumferentially arranged first stirring plates (403) and second stirring plates (404), the first stirring plates (403) and the second stirring plates (404) are arranged alternately, and the first stirring plates (403) and the second stirring plates (404) are inclined towards opposite directions. ​ 2. The desulfurization tank for hydrogen production according to claim 1, characterized in that: The desulfurization tank (103) is symmetrically provided with two groups, and each group of the desulfurization tank (103) is provided with the stirring assembly.

3. The desulfurization tank for hydrogen production according to claim 1, characterized in that: The ventilation assembly comprises two branch air inlet pipes (201) fixedly connected to the bottom of the desulfurization tank (102), the inner bottom wall of the desulfurization tank (102) is provided with an air inlet hole for communicating the desulfurization tank (103) with the branch air inlet pipe (201), the bottom of the branch air inlet pipe (201) is fixedly connected with a total air inlet pipe (202), the top of the desulfurization tank (102) is fixedly connected with two branch air outlet pipes (203), the branch air outlet pipes (203) communicate with different desulfurization tanks (103), the top of the branch air outlet pipes (203) is fixedly connected with a total air outlet pipe (204), and each branch air inlet pipe (201) and branch air outlet pipe (203) is provided with an electromagnetic valve.

4. The desulfurization tank for hydrogen production according to claim 1, characterized in that: The desulfurization assembly comprises a feeding pipe (301) fixedly connected to the top of the desulfurization tank (102), the feeding pipe (301) communicates with the desulfurization tank (103), the desulfurization tank (103) is filled with granular desulfurizer, the top of the feeding pipe (301) is threadedly connected with a sealing plug (302), the side wall of the desulfurization tank (102) is fixedly connected with a discharge pipe (303), the discharge pipe (303) communicates with the inside of the desulfurization tank (103), and the discharge pipe (303) is located at the bottom of the desulfurization tank (103).

5. The desulfurization tank for hydrogen production according to claim 3, characterized in that: The air inlet hole in the inner bottom wall of the desulfurization tank (102) is fixedly connected with a filter plate (304), and the filter plate (304) is located at the bottom of the desulfurization tank (103).

6. The desulfurization tank for hydrogen production according to claim 4, characterized in that: The inner bottom wall of the desulfurization tank (102) is inclined, and the discharge pipe (303) is located at the end of the inner bottom wall of the desulfurization tank (102) which is lower.

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