A hydrogen production device for low-calorific-value crude coal gas

Abstract

The utility model relates to the technical field of hydrogen production equipment of raw coal gas, concretely is a kind of low heat value raw coal gas hydrogen production device, including mounting plate, the top surface of mounting plate is equipped with gas delivery subassembly, the left side of gas delivery subassembly is equipped with temperature changing subassembly, and the right side of gas delivery subassembly is equipped with filter subassembly. The utility model cooperates through gas delivery subassembly and temperature changing subassembly, not only can the rate when conveying gas be realized, simultaneously still can the temperature in the inside of temperature swing adsorption box be carried out temperature swing operation, if not need to carry out temperature swing, still can the temperature in the inside of temperature swing adsorption box be carried out heat preservation operation.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen production equipment from raw coal gas, specifically a hydrogen production device from low-calorific-value raw coal gas. Background Technology

[0002] Raw coal gas is an unpurified gaseous product that is released during the dry distillation of coal. Its main components include hydrogen, nitrogen, methane, and carbon monoxide.

[0003] In this regard, the existing technology patent publication number: CN214734512U, discloses a raw coal gas hydrogen production system, which relates to the field of raw coal gas hydrogen production equipment. This raw coal gas hydrogen production system includes a gas compression device, a temperature-switching adsorption device, and two or more concentration and purification mechanisms. The outlet end of the gas compression device is connected to the inlet end of the temperature-switching adsorption device. The two or more concentration and purification mechanisms are connected in parallel and are all connected to the outlet end of the temperature-switching adsorption device. The concentration and purification mechanism includes a concentration adsorption device, a deoxygenation device, and a purification adsorption device, which are arranged in series along the flow direction of the raw coal gas.

[0004] However, in actual use, the gas is not transported in multiple stages, and the gas cannot be operated at a high and stable temperature during the subsequent temperature-switching adsorption process, which limits its overall use. Therefore, improving and perfecting the above-mentioned problems is an urgent issue to be addressed. Summary of the Invention

[0005] The purpose of this invention is to provide a low-calorific-value raw coal gas hydrogen production device to solve the problems mentioned in the background art, such as the lack of multiple transportation during gas transportation and the inability to provide a high and stable temperature for gas operation during subsequent temperature-switching adsorption, which limits the overall use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-calorific-value raw coal gas hydrogen production device, including an installation plate, a gas conveying component installed on the top surface of the installation plate, a temperature variable component installed on the left side of the gas conveying component, and a filter component installed on the right side of the gas conveying component; The gas delivery assembly includes a gas compression box, which is mounted on the upper surface of the mounting plate. A mounting bracket is mounted on the left side of the gas compression box. A first delivery pipe and a second delivery pipe are installed inside the mounting bracket from front to back. Control valves are provided on the outer surfaces of both the first delivery pipe and the second delivery pipe. The temperature-changing assembly includes a temperature-changing adsorption box, which is installed on the top surface of the mounting plate. From left to right, a top column and a vacuum adsorption box are installed on the top surface of the temperature-changing adsorption box.

[0007] Preferably, the inner wall of the variable temperature adsorption box is equipped with a heat insulation ring, and the top surface of the inner wall of the variable temperature adsorption box is equipped with a heat-conducting rod.

[0008] Preferably, a heat-conducting plate is installed at the lower end of the heat-conducting rod, and a heat-conducting cylinder is installed on the lower surface of the heat-conducting plate.

[0009] Preferably, an electric heating rod is installed inside the heat-conducting cylinder, and a heat-conducting frame is installed on the outer surface of the heat-conducting cylinder.

[0010] Preferably, a connecting cylinder is installed on the left side of the variable temperature adsorption box, and a three-way pipe is installed at the end of the connecting cylinder away from the variable temperature adsorption box.

[0011] Preferably, the filter assembly includes a connecting pipe installed on the right side surface of the gas compression chamber, and a filter frame is installed on the right side of the connecting pipe.

[0012] Preferably, a limiting block is installed on the inner side wall of the filter frame, and a filter rack is fitted to the right side of the limiting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This low-calorific-value raw coal gas hydrogen production device, through the cooperation of the gas conveying component and the temperature-changing component, can not only achieve the gas conveying rate, but also change the temperature inside the temperature-changing adsorption box. If temperature changing is not required, the temperature inside the temperature-changing adsorption box can also be kept warm.

[0014] This low-calorific-value raw coal gas hydrogen production unit can filter the gas being transported through a filtration assembly, and can also disassemble and clean the filter frame after filtration. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a split diagram of the filter frame and limiting block structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the mounting frame and the first conveying pipe structure of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the variable temperature adsorption box of this utility model; Figure 5 This is a three-dimensional schematic diagram of the heat-conducting cylinder and heat-conducting frame structure of this utility model.

[0016] In the diagram: 1. Mounting plate; 2. Gas compression box; 3. Variable temperature adsorption box; 4. Connecting pipe; 5. Filter frame; 6. Limiting block; 7. Filter rack; 8. Mounting frame; 9. First conveying pipe; 10. Second conveying pipe; 11. Control valve; 12. Top column; 13. Vacuum adsorption box; 14. Insulation ring; 15. Heat-conducting rod; 16. Heat-conducting plate; 17. Heat-conducting cylinder; 18. Electric heating rod; 19. Heat-conducting frame; 20. Connecting cylinder; 21. T-connector. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-5 One embodiment provided by this utility model: A low-calorific-value raw coal gas hydrogen production device, the gas compression box 2, temperature-changing adsorption box 3, control valve 11, vacuum adsorption box 13 and electric heating rod 18 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here. It includes a mounting plate 1, a gas conveying component is installed on the top surface of the mounting plate 1, a temperature-changing component is installed on the left side of the gas conveying component, and a filter component is installed on the right side of the gas conveying component. The gas delivery assembly includes a gas compression box 2, which is mounted on the upper surface of the mounting plate 1. A mounting bracket 8 is mounted on the left side of the gas compression box 2. A first delivery pipe 9 and a second delivery pipe 10 are installed inside the mounting bracket 8 from front to back. Control valves 11 are provided on the outer surfaces of both the first delivery pipe 9 and the second delivery pipe 10. The variable temperature assembly includes a variable temperature adsorption box 3, which is mounted on the top surface of the mounting plate 1. From left to right, a top column 12 and a vacuum adsorption box 13 are sequentially mounted on the top surface of the variable temperature adsorption box 3. First, the gas is compressed and transported through a gas compression box 2. Then, the mounting frame 8 is connected to the gas compression box 2. Subsequently, the compressed gas inside the gas compression box 2 can be transported through both the first transport pipe 9 and the second transport pipe 10. Control valves 11 are provided on the outer surfaces of both the first transport pipe 9 and the second transport pipe 10. By controlling the opening and closing of the control valves 11, the first transport pipe 9 and the second transport pipe 10 can be switched on and off, thereby enabling the transport of compressed gas. The compressed gas is then transported into the interior of the variable temperature adsorption box 3, where the vacuum adsorption box 13 performs a vacuum adsorption operation on the gas inside the variable temperature adsorption box 3.

[0019] A heat-insulating ring 14 is installed on the inner wall of the variable-temperature adsorption box 3, and a heat-conducting rod 15 is installed on the top surface of the inner wall of the variable-temperature adsorption box 3. A heat-conducting plate 16 is installed at the lower end of the heat-conducting rod 15, and a heat-conducting cylinder 17 is installed on the lower surface of the heat-conducting plate 16. An electric heating rod 18 is installed inside the heat-conducting cylinder 17, and a heat-conducting frame 19 is installed on the outer surface of the heat-conducting cylinder 17. The heat-conducting rod 15 connects to the heat-conducting plate 16, which absorbs heat. Then, by activating the electric heating rod 18, heating begins. Both the heat-conducting cylinder 17 and the heat-conducting frame 19 absorb the heat emitted by the electric heating rod 18, thus heating the gas inside the variable-temperature adsorption chamber 3. The heating process of the electric heating rod 18 can be controlled, thereby achieving stable temperature control inside the variable-temperature adsorption chamber 3 and preventing temperature drops from affecting the adsorption effect. Therefore, this setup, through the cooperation of the gas delivery component and the temperature-changing component, not only achieves the gas delivery rate but also allows for temperature regulation inside the variable-temperature adsorption chamber 3. When temperature regulation is not required, the temperature inside the variable-temperature adsorption chamber 3 can be maintained. In this case, a heat-insulating ring 14 is installed inside the variable-temperature adsorption chamber 3 to maintain the internal temperature.

[0020] A connecting cylinder 20 is installed on the left side of the temperature-switching adsorption box 3, and a three-way pipe 21 is installed at the end of the connecting cylinder 20 away from the temperature-switching adsorption box 3. The gas after the temperature-switching adsorption operation can be transported to the subsequent purification adsorption unit through the connecting cylinder 20 and the three-way pipe 21 to complete the subsequent hydrogen production operation.

[0021] The filter assembly includes a connecting pipe 4, which is installed on the right side of the gas compression chamber 2. A filter frame 5 is installed on the right side of the connecting pipe 4. A limiting block 6 is installed on the inner wall of the filter frame 5, and a filter holder 7 is fitted to the right side of the limiting block 6. Gas is then delivered into the filter frame 5 and passes through the filter holder 7, which is blocked and limited by the limiting block 6. The filter holder 7 effectively filters impurities from the gas, resulting in a good overall filtration effect. Furthermore, the filter holder 7 can be easily removed later. The gas then passes through the filter frame 5 and the connecting pipe 4 into the gas compression chamber 2 for compression. Therefore, this setup can filter the delivered gas and also allows for the disassembly and cleaning of the filtered gas holder 7.

[0022] Working Principle: When using this device, the operator first connects it to an external power source to provide electrical support. The gas is first compressed and transported through the gas compression chamber 2. Then, the mounting frame 8 is connected to the gas compression chamber 2. The compressed gas inside the gas compression chamber 2 is then transported through both the first transport pipe 9 and the second transport pipe 10. Control valves 11 are installed on the outer surface of both the first and second transport pipes 9 and 10. By controlling the opening and closing of the control valves 11, the first and second transport pipes 9 and 10 can be switched on and off, thus enabling the transport of compressed gas. The compressed gas is then... The compressed gas is delivered into the variable temperature adsorption chamber 3. The vacuum adsorption chamber 13 can perform vacuum adsorption on the gas inside the variable temperature adsorption chamber 3. Then, the heat conduction rod 15 can connect to the heat conduction plate 16, and the heat conduction plate 16 can absorb heat. Then, the electric heating rod 18 is activated to start heating. The heat conduction cylinder 17 and the heat conduction frame 19 can both absorb the heat emitted by the electric heating rod 18, thereby heating the gas inside the variable temperature adsorption chamber 3. The heating of the electric heating rod 18 can be controlled, so the temperature inside the variable temperature adsorption chamber 3 can be stably controlled. At this time, the gas will be delivered into the interior of the filter frame 5, and then the gas will pass through the interior of the filter rack 7. The filter rack 7 is blocked and limited by the limiting block 6. The filter rack 7 can filter the impurities in the gas, so the overall filtration effect is good. At the same time, the filter rack 7 can be easily removed later. Then the gas will enter the interior of the gas compression box 2 through the filter frame 5 and the connecting pipe 4 to perform the gas compression operation. The above is the working principle of this utility model.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A hydrogen production device from low-calorific-value raw coal gas, comprising a mounting plate (1), characterized in that: A gas supply assembly is installed on the top surface of the mounting plate (1), a temperature variable assembly is installed on the left side of the gas supply assembly, and a filter assembly is installed on the right side of the gas supply assembly. The gas delivery assembly includes a gas compression box (2), which is mounted on the upper surface of the mounting plate (1). A mounting bracket (8) is mounted on the left side of the gas compression box (2). A first delivery pipe (9) and a second delivery pipe (10) are installed inside the mounting bracket (8) from front to back. A control valve (11) is provided on the outer surface of both the first delivery pipe (9) and the second delivery pipe (10). The temperature-changing assembly includes a temperature-changing adsorption box (3), which is installed on the top surface of the mounting plate (1). From left to right, the top surface of the temperature-changing adsorption box (3) is equipped with a top column (12) and a vacuum adsorption box (13).

2. The low-calorific-value raw coal gas hydrogen production device according to claim 1, characterized in that: The inner wall of the variable temperature adsorption box (3) is equipped with a heat insulation ring (14), and the top surface of the inner wall of the variable temperature adsorption box (3) is equipped with a heat-conducting rod (15).

3. A hydrogen production device from low-calorific-value raw coal gas according to claim 2, characterized in that: A heat-conducting plate (16) is installed at the lower end of the heat-conducting rod (15), and a heat-conducting cylinder (17) is installed on the lower surface of the heat-conducting plate (16).

4. A hydrogen production device from low-calorific-value raw coal gas according to claim 3, characterized in that: An electric heating rod (18) is installed inside the heat-conducting cylinder (17), and a heat-conducting frame (19) is installed on the outer surface of the heat-conducting cylinder (17).

5. A hydrogen production device from low-calorific-value raw coal gas according to claim 1, characterized in that: A connecting tube (20) is installed on the left side of the variable temperature adsorption box (3), and a three-way pipe (21) is installed at the end of the connecting tube (20) away from the variable temperature adsorption box (3).

6. A hydrogen production device from low-calorific-value raw coal gas according to claim 1, characterized in that: The filter assembly includes a connecting pipe (4) which is installed on the right side surface of the gas compression box (2), and a filter frame (5) is installed on the right side of the connecting pipe (4).

7. A hydrogen production device from low-calorific-value raw coal gas according to claim 6, characterized in that: A limiting block (6) is installed on the inner side wall of the filter frame (5), and a filter frame (7) is attached to the right side of the limiting block (6).

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