Novel efficient ammonia decomposition hydrogen production equipment

Abstract

The utility model relates to the technical field of hydrogen production equipment, in particular to novel efficient ammonia decomposition hydrogen production equipment which comprises a decomposition furnace body, a closed inner furnace structure is mounted on the decomposing furnace body, and a quantitative feeding structure for quantitatively feeding a catalyst is mounted on one side of the decomposing furnace body; the quantitative feeding structure comprises a storage material barrel, the bottom of the storage material barrel is connected with a quantitative material box in a penetrating mode, an overturning inner rod is rotationally installed in the quantitative material box, and one end of the overturning inner rod rotationally penetrates through the outer wall of the quantitative material box in a sealed mode and is connected with a second servo motor; the upper face and the lower face of the overturning inner rod are each provided with an arc groove used for quantitative discharging of a catalyst. Through the quantitative feeding structure, quantitative feeding of the catalyst is achieved, through accurate control of a second servo motor, the overturning inner rod can accurately discharge the catalyst from the quantitative material box, the catalyst enters the decomposing furnace body through a discharging pipe, errors and nonuniformity caused by manual feeding are avoided, and the accuracy and efficiency of catalyst feeding are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment technology, specifically to a novel high-efficiency ammonia decomposition hydrogen production equipment. Background Technology

[0002] Ammonia decomposition to produce hydrogen is a chemical reaction in which liquid ammonia is heated to 800-850℃ and decomposed under the action of a nickel-based catalyst to obtain a hydrogen-nitrogen mixture containing 75% H2 and 25% N2. Chinese patent discloses a novel high-efficiency ammonia decomposition hydrogen production and purification device (authorization announcement number CN217202072U). This patent technology discloses a novel high-efficiency ammonia decomposition hydrogen production and purification device, comprising: a decomposition furnace; a preparatory cylinder section disposed at the upper end of the decomposition furnace; a motor disposed at the top of the preparatory cylinder section; and a feeding section disposed at the top of the decomposition furnace. The motor is connected to the decomposition furnace via two fixed rods. The preparatory cylinder section is provided with a covered feed port. A nickel-based catalyst can enter the preparatory cylinder section through the covered feed port. Driving the motor, the preparatory cylinder section can actuate the nickel-based catalyst, allowing it to enter the feeding section. Compared with existing technologies, the preparatory cylinder section serves as a buffer zone for the nickel-based catalyst feeding process. The motor's operation allows the buffered nickel-based catalyst in the preparatory cylinder section to enter the feeding section at appropriate times, ensuring that the decomposition and purification work of the decomposition furnace and the feeding work do not interfere with each other. This shortens the sequential process of hydrogen purification and improves the efficiency of hydrogen production. This patented technology solves the problem that the gas produced by this method is a good protective gas. Currently, the feeding of nickel-based catalysts into the decomposition furnace can only be carried out once. The next feeding can only be carried out after the ammonia has been completely decomposed, which involves a considerable waiting time and affects the efficiency of hydrogen purification.

[0003] However, in the existing technology, the catalyst needs to be isolated from the decomposition furnace before it is added, and it can be automatically discharged into the decomposition furnace when the catalyst is added. The problem of automatically and quantitatively adding the catalyst to the decomposition furnace in the existing technology needs to be solved.

[0004] Therefore, those skilled in the art have provided a novel and highly efficient ammonia decomposition hydrogen production device to solve the problems mentioned in the background art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides:

[0006] A novel high-efficiency ammonia decomposition hydrogen production device includes: a decomposition furnace body; a closed inner furnace structure installed on the decomposition furnace body, and a quantitative feeding structure for quantitative catalyst feeding installed on one side of the decomposition furnace body; the quantitative feeding structure includes a storage tank, and a quantitative feed box is connected through the bottom of the storage tank; a rotating inner rod is rotatably installed inside the quantitative feed box, one end of the rotating inner rod is sealed and rotates through the outer wall of the quantitative feed box, and is connected to a servo motor; arc grooves for quantitative catalyst feeding are opened on both the upper and lower surfaces of the rotating inner rod.

[0007] Preferably, the enclosed inner furnace structure includes an inner furnace cylinder that is rotatably disposed inside the decomposition furnace body, and a top sealing plate is fixedly assembled on the top of the inner furnace cylinder.

[0008] Preferably, a toothed ring is fixedly mounted on the outer edge of the top sealing plate, a gear meshes on one side of the toothed ring, a servo motor is connected to the bottom of the gear, and a fixing plate is fixedly mounted on the outer wall of the servo motor, the fixing plate being fixedly mounted on the outer wall of the decomposition furnace.

[0009] Preferably, a feed hole is provided through the side wall of the decomposition furnace body.

[0010] Furthermore, the inner furnace cylinder is provided with a second feed hole through the feed hole at the position corresponding to the first feed hole, and the second feed hole can overlap with the first feed hole.

[0011] Preferably, a second pipe is rotatably installed at the center of the top sealing plate, and a vertical shaft plate is rotatably installed on the outer wall of the second pipe, with the vertical shaft plate fixedly assembled on the outer wall of the decomposition furnace.

[0012] Preferably, the bottom of the decomposition furnace body is detachably equipped with a furnace bottom sealing plate, and a pipe is connected through the center of the furnace bottom sealing plate.

[0013] Preferably, a top cover is hinged to the top of the storage hopper.

[0014] The bottom of the quantitative material box is connected to a feeding pipe, which is connected to the feeding hole of the decomposition furnace body.

[0015] The quantitative feeding structure includes a mounting side frame fixedly assembled on the bottom wall of the storage tank, a support frame fixedly installed at the bottom end of the mounting side frame, and the support frame fixedly assembled on the outer wall of the decomposition furnace.

[0016] A controller is installed on the outer wall of the mounting bracket.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. The quantitative feeding structure enables the quantitative addition of catalyst. The precise control of the servo motor II allows the inner rotating rod to accurately discharge the catalyst from the quantitative feed box and into the decomposition furnace through the feed pipe, avoiding the errors and unevenness caused by manual addition and improving the accuracy and efficiency of catalyst addition.

[0019] 2. Driven by a servo motor and gears, the inner furnace cylinder can rotate inside the decomposition furnace, automatically aligning feed port one and feed port two. This design simplifies the operation and improves ease of use. During the ammonia decomposition for hydrogen production, the feed port two of the inner furnace cylinder and the feed port one of the decomposition furnace are staggered, ensuring a high degree of sealing inside the furnace, which helps maintain a stable reaction environment and improves the efficiency of ammonia decomposition for hydrogen production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a novel high-efficiency ammonia decomposition hydrogen production device provided in this application;

[0021] Figure 2 This is a side view of a novel high-efficiency ammonia decomposition hydrogen production device provided in this application;

[0022] Figure 3 This is a schematic diagram of the decomposition structure in a novel high-efficiency ammonia decomposition hydrogen production device provided in this application;

[0023] Figure 4 This is a schematic diagram of the enclosed inner furnace structure in a novel high-efficiency ammonia decomposition hydrogen production equipment provided in this application;

[0024] Figure 5 This is a schematic diagram of the quantitative feeding structure in a novel high-efficiency ammonia decomposition hydrogen production device provided in this application.

[0025] In the picture:

[0026] 1. Decompose the furnace body;

[0027] 2. Enclosed inner furnace structure; 201. Top sealing plate; 202. Gear ring; 203. Gear; 204. Servo motor one; 205. Fixing plate; 206. Inner furnace cylinder; 207. Feed hole two;

[0028] 3. Quantitative feeding structure; 301. Mounting side frame; 302. Storage hopper; 303. Quantitative feeding box; 304. Tilting inner rod; 305. Servo motor II; 306. Feeding pipe; 307. Hopper top cover;

[0029] 4. Controller; 5. Furnace bottom sealing plate; 6. Pipe 1; 7. Support frame; 8. Vertical shaft plate; 9. Pipe 2; 10. Feed hole 1. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0031] For examples, please refer to Figures 1-5 This embodiment provides a novel high-efficiency ammonia decomposition hydrogen production device, including: a decomposition furnace body 1; a closed inner furnace structure 2 is installed on the decomposition furnace body 1, and a quantitative feeding structure 3 for quantitative catalyst feeding is installed on one side of the decomposition furnace body 1;

[0032] The quantitative feeding structure 3 includes a storage tank 302, and a quantitative feeding box 303 is connected through the bottom of the storage tank 302. A flipping inner rod 304 is rotatably installed inside the quantitative feeding box 303. One end of the flipping inner rod 304 is sealed and rotatably passes through the outer wall of the quantitative feeding box 303 and is connected to a servo motor 305. Arc grooves for quantitative feeding of catalyst are opened on both the upper and lower surfaces of the flipping inner rod 304.

[0033] The enclosed inner furnace structure 2 includes an inner furnace cylinder 206 rotatably disposed inside the decomposition furnace body 1, and a top sealing plate 201 is fixedly mounted on the top of the inner furnace cylinder 206; a gear ring 202 is fixedly mounted on the outer edge of the top sealing plate 201, a gear 203 meshes on one side of the gear ring 202, a servo motor 204 is connected to the bottom of the gear 203, and a fixing plate 205 is fixedly mounted on the outer wall of the servo motor 204, and the fixing plate 205 is fixedly mounted on the outer wall of the decomposition furnace body 1.

[0034] The side wall of the decomposition furnace body 1 is provided with a feed hole 10; and the inner furnace cylinder 206 is provided with a feed hole 207 corresponding to the position of the feed hole 10, the feed hole 207 and the feed hole 10 can overlap each other; a pipe 9 is rotatably installed at the center of the top sealing plate 201, and a vertical shaft plate 8 is rotatably installed on the outer wall of the pipe 9, the vertical shaft plate 8 is fixedly assembled on the outer wall of the decomposition furnace body 1;

[0035] The bottom of the decomposition furnace body 1 is detachably equipped with a furnace bottom sealing plate 5, and a pipe 6 is connected through the center of the furnace bottom sealing plate 5; the top of the storage hopper 302 is hingedly installed with a hopper top cover 307.

[0036] The bottom of the quantitative material box 303 is connected to a feeding pipe 306, which is correspondingly connected to the feed hole 10 of the decomposition furnace body 1; the quantitative feeding structure 3 includes a mounting side frame 301 fixedly assembled on the bottom wall of the storage tank 302, and a support frame 7 is fixedly installed at the bottom end of the mounting side frame 301, which is fixedly assembled on the outer wall of the decomposition furnace body 1; a controller 4 is installed on the outer wall of the mounting side frame 301.

[0037] According to the above embodiments, the working principle of this invention is as follows:

[0038] When the decomposition furnace body 1 is operating normally at high temperature, the feed hole 207 of the inner furnace cylinder 206 and the feed hole 10 of the decomposition furnace body 1 are intersected, so that the decomposition furnace body 1 and the inner furnace cylinder 206 are sealed to each other, improving the sealing of the interior of the decomposition furnace body 1.

[0039] When adding catalyst to the inner side of the inner furnace cylinder 206 inside the decomposition furnace body 1, the servo motor 2 305 is started. After the servo motor 2 305 is started, it drives the flipping inner rod 304 to flip horizontally 180° up and down, so that the arc groove containing the catalyst rotates and flips inside the quantitative material box 303, so that the catalyst is discharged into the feed hole 10 of the decomposition furnace body 1 through the feed pipe 306.

[0040] When the feed hole 10 and feed hole 207 are aligned, the servo motor 204 is started. After the servo motor 204 is started, it drives the gear 203 to rotate. The gear 203 rotates and meshes with the gear ring 202. The gear ring 202 drives the top sealing plate 201, which in turn causes the inner furnace cylinder 206 to rotate inside the decomposition furnace body 1, so that the feed hole 207 and feed hole 10 are aligned with each other, which facilitates the automatic quantitative discharge of catalyst into the decomposition furnace body 1 for feeding.

[0041] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A novel high-efficiency ammonia decomposition hydrogen production device, comprising a decomposition furnace body (1), characterized in that, The decomposition furnace body (1) is equipped with a closed inner furnace structure (2), and a quantitative feeding structure (3) for quantitative catalyst feeding is installed on one side of the decomposition furnace body (1). The quantitative feeding structure (3) includes a storage bucket (302), and a quantitative material box (303) is connected through the bottom of the storage bucket (302). A flipping inner rod (304) is rotatably installed inside the quantitative material box (303). One end of the flipping inner rod (304) is sealed and rotatably penetrates the outer wall of the quantitative material box (303), and is connected to a servo motor (305). The flipping inner rod (304) has arc grooves on both its upper and lower surfaces for quantitative feeding of the catalyst.

2. The novel high-efficiency ammonia decomposition hydrogen production equipment according to claim 1, characterized in that, The enclosed inner furnace structure (2) includes an inner furnace cylinder (206) that is rotatably disposed inside the decomposition furnace body (1), and a top sealing plate (201) is fixedly mounted on the top of the inner furnace cylinder (206).

3. The novel high-efficiency ammonia decomposition hydrogen production equipment according to claim 2, characterized in that, A gear ring (202) is fixedly mounted on the outer edge of the top sealing plate (201). A gear (203) meshes on one side of the gear ring (202). A servo motor (204) is connected to the bottom of the gear (203). A fixing plate (205) is fixedly mounted on the outer wall of the servo motor (204). The fixing plate (205) is fixedly mounted on the outer wall of the decomposition furnace body (1).

4. The novel high-efficiency ammonia decomposition hydrogen production equipment according to claim 1, characterized in that, The side wall of the decomposition furnace body (1) is provided with a feed hole (10).

5. A novel high-efficiency ammonia decomposition hydrogen production device according to claim 3, characterized in that, The top sealing plate (201) is rotatably installed with pipe two (9) at its center, and a vertical shaft plate (8) is rotatably installed on the outer wall of pipe two (9). The vertical shaft plate (8) is fixedly assembled on the outer wall of the decomposition furnace body (1).

6. The novel high-efficiency ammonia decomposition hydrogen production equipment according to claim 1, characterized in that, The bottom of the decomposition furnace body (1) is detachably equipped with a furnace bottom sealing plate (5), and a pipe (6) is connected through the center of the furnace bottom sealing plate (5).

7. The novel high-efficiency ammonia decomposition hydrogen production equipment according to claim 1, characterized in that, The storage hopper (302) is hinged to a top cover (307).

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