Ammonia cracking hydrogen production device
The ammonia cracking hydrogen production unit utilizes components such as isolation boxes and cracking furnaces to efficiently crack ammonia into hydrogen and nitrogen under the action of catalysts, solving the environmental and cost problems of traditional hydrogen production methods and realizing efficient and low-pollution hydrogen production.
Patent Information
- Application Number
- CN202520554227.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional hydrogen production methods, such as hydrogen production from fossil fuel reforming, produce greenhouse gases such as carbon dioxide, which are not environmentally friendly. Hydrogen production through water electrolysis is energy-intensive and costly, limiting its large-scale application.
The ammonia cracking hydrogen production unit utilizes components such as an isolation box, cracking furnace, heater, and catalyst. Ammonia and catalyst are transported to the furnace chamber through liquid ammonia feed pipe and solid feed pipe for chemical reaction. The reaction is heated by a burner and mixed by a stirring plate. Waste gas and products are treated through dedicated pipelines to achieve efficient ammonia cracking into hydrogen and nitrogen.
With the help of a highly efficient catalyst, ammonia is cracked at a high conversion rate to generate a large amount of hydrogen to meet industrial needs. The system also reduces exhaust pollution through filtration and exhaust systems to ensure the purity of hydrogen, making it suitable for various application scenarios.
Smart Images
Figure CN223945676U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cracking technology, specifically an ammonia cracking hydrogen production device. Background Technology
[0002] With increasing global emphasis on environmental protection and sustainable development, hydrogen energy, as a clean and efficient secondary energy source, has received widespread attention in many fields.
[0003] Traditional hydrogen production methods, such as fossil fuel reforming, are technically mature and relatively inexpensive, but they produce large amounts of greenhouse gases such as carbon dioxide, which do not meet environmental protection requirements. Water electrolysis, while clean, is energy-intensive and expensive, which limits its large-scale application.
[0004] With the continuous advancement of materials science and catalysis technology, the emergence of new and highly efficient catalysts has enabled ammonia cracking reactions to proceed under milder conditions, improving the stability and economy of the equipment.
[0005] Therefore, this utility model provides an ammonia cracking hydrogen production device. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, an ammonia cracking hydrogen production device is proposed.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: An ammonia cracking hydrogen production device according to this utility model includes an isolation box; a load-bearing frame is installed inside the isolation box; the load-bearing frame is located at the lower part of the isolation box; a cracking furnace is installed on top of the load-bearing frame; a furnace chamber is provided inside the cracking furnace; a heater is installed inside the cracking furnace; the heater is located at the bottom of the furnace chamber; a burner is installed at the bottom of the cracking furnace; the burner and the heater are connected; a solid feed pipe is connected to the side wall of the cracking furnace; the end of the solid feed pipe is located inside the furnace chamber; the cracking furnace… A liquid ammonia feed pipe is connected to the side wall; the end of the liquid ammonia feed pipe is located inside the furnace chamber and below the solid feed pipe; a discharge pipe is connected to the side wall of the pyrolysis furnace; the end of the discharge pipe is located inside the furnace chamber and on the symmetrical plane of the liquid ammonia feed pipe; an exhaust pipe is connected to the side wall of the pyrolysis furnace; the end of the exhaust pipe is located inside the furnace chamber and above the discharge pipe and on the symmetrical plane of the solid feed pipe; under the action of an advanced catalyst, ammonia can achieve a high pyrolysis conversion rate, decomposing a large amount of ammonia into hydrogen and nitrogen, effectively meeting the industrial production demand for hydrogen.
[0008] Preferably, the top of the cracking furnace is provided with a driving motor; the output end of the driving motor is connected with a connecting rod; the connecting rod is arranged at the inner position of the furnace; the end of the connecting rod is fixedly connected with a stirring disc; the stirring disc is arranged in rotation in the inner part of the furnace; liquid ammonia and other substances can be effectively mixed; the stirring disc can make them quickly and uniformly mixed together, ensuring that the raw material components entering the vaporization and preheating system are uniformly and stably.
[0009] Preferably, the end of the exhaust pipe is fixedly connected with a waste gas filter; the waste gas filter is arranged at the inner position of the furnace; the end of the discharge pipe is fixedly connected with an impurity filter; the impurity filter is arranged at the inner position of the furnace and on the symmetric surface of the waste gas filter; the residual ammonia gas which is not completely decomposed can be effectively treated, the content of ammonia in the waste gas is reduced, the pollution of ammonia to the environment is reduced, the impurities in the raw material gas are removed, and the hydrogen gas finally prepared reaches the required purity standard, meeting the needs of different application scenarios.
[0010] Preferably, the side wall of the isolation box is provided with a conveying pump; the conveying pump is arranged at the end position of the liquid ammonia feeding pipe and is connected; the feeding port of the conveying pump is connected with an external connecting pipe; the raw material can be accurately and stably supplied according to the process requirements, and the continuous reaction can be maintained.
[0011] Preferably, the end of the discharge pipe is fixedly connected with a trapezoidal connecting block; the trapezoidal connecting block is arranged at the end position of the exhaust pipe, the solid feeding pipe and the external connecting pipe; a larger contact area can be effectively provided, the connection is more firm, and at the same time, a good seal can be formed at the connecting part, preventing gas leakage.
[0012] Preferably, the side wall of the isolation box is provided with a heat dissipation hole; the side wall of the isolation box is provided with a filter screen; the filter screen is arranged at the side position of the heat dissipation hole; the heat dissipation hole can effectively dissipate heat, the temperature of each part in the device can be controlled within a suitable range, and the efficiency and stability of the equipment can be improved.
[0013] Preferably, the bottom of the isolation box is threadedly connected with a load-bearing threaded column; the load-bearing threaded column is arranged at the four corner positions of the bottom of the isolation box; the end of the load-bearing threaded column is fixedly connected with an adjusting gasket; the height of the adjusting threaded column can be effectively adjusted, and the levelness of the reactor can be accurately adjusted, so that the reactor reaches the best operating state.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The utility model relates to a kind of ammonia cracking hydrogen production device, ammonia is transported to furnace tube inside by liquid nitrogen feed pipe, the required catalyst is transported to furnace tube inside and carries out chemical reaction with ammonia by solid feed pipe, and heater is heated to aluminium tube by the working of combustor, the chemical reaction of inside two is generated, the cracking of ammonia is generated, the exhaust gas generated can be discharged by exhaust pipe, and discharge pipe can make the required substance of reaction discharge and save, ammonia can realize higher cracking conversion rate under the effect of advanced catalyst, a large amount of ammonia can be decomposed into hydrogen and nitrogen, which can effectively meet the demand of industrial production for hydrogen.
[0016] 2. The utility model relates to a kind of ammonia cracking hydrogen production device, stirring disc 23 is rotated by the drive motor, the catalytic material of heating combustion and ammonia can be better chemically mixed and reacted, so that the two better fusion chemical reaction can be carried out, liquid ammonia and other substances can be effectively mixed, the stirring disc can make them quickly and uniformly mixed together, to ensure that the raw material components entering the vaporization and preheating system are uniform and stable. DRAWINGS
[0017] The utility model will be further described below with reference to the drawings.
[0018] Figure 1 It is the perspective view of the utility model;
[0019] Figure 2 It is the internal structure schematic view of the isolation box in the utility model;
[0020] Figure 3 It is the internal section view of the cracking furnace in the utility model;
[0021] Figure 4 It is the structure schematic view of the stirring disc in the utility model.
[0022] In the drawing: 11, isolation box;12, bearing frame;13, cracking furnace;14, furnace tube;15, heater;16, combustor;17, solid feed pipe;18, liquid ammonia feed pipe;19, discharge pipe;110, exhaust pipe;21, drive motor;22, connecting rod;23, stirring disc;31, waste gas filter;32, impurity filter;41, delivery pump;42, external pipe;51, trapezoidal connecting block;61, heat dissipation hole;62, filter screen;71, bearing screw column;72, adjusting washer. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments.
[0024] The specific embodiments are given below.
[0025] As Figures 1 to 4 shown, the utility model discloses a kind of ammonia cracking hydrogen production device, including isolation box 11;The inside of isolation box 11 is installed with load-bearing frame 12;Load-bearing frame 12 is arranged at the inside lower position of isolation box 11;The top of load-bearing frame 12 is installed with cracking furnace 13;The inside of cracking furnace 13 is equipped with furnace 14;Cracking furnace 13 is installed with heater 15 in the inside;Heater 15 is arranged at the bottom position of furnace 14;The bottom of cracking furnace 13 is installed with combustor 16;Combustor 16 is connected with heater 15;Solid feed pipe 17 is connected on the lateral wall of cracking furnace 13;The end of solid feed pipe 17 is arranged at the inside position of furnace 14;Liquid ammonia feed pipe 18 is connected on the lateral wall of cracking furnace 13;The end of liquid ammonia feed pipe 18 is arranged at the inside position of furnace 14, and is arranged at the lower position of solid feed pipe 17;Discharge pipe 19 is connected on the lateral wall of cracking furnace 13;The end of discharge pipe 19 is arranged at the inside position of furnace 14, and is arranged at the symmetry plane of liquid ammonia feed pipe 18;Exhaust pipe 110 is connected on the lateral wall of cracking furnace 13;The end of exhaust pipe 110 is arranged at the inside position of furnace 14, and is arranged at the symmetry plane position of discharge pipe 19 and solid feed pipe 17;When needing to crack reaction to ammonia in working, ammonia can be transported to the inside of furnace 14 in the inside of cracking furnace 13 by liquid ammonia feed pipe 18, and catalyst is transported to the inside of furnace 14 by solid feed pipe 17, and combustor 16 drives heater 15 to heat and burn furnace 14, so that ammonia and catalyst crack chemical reaction, when cracking, waste gas can be discharged by exhaust pipe 110 for further treatment, and hydrogen and nitrogen reacted can be discharged by discharge pipe 19 for storage treatment;Through the above structure, ammonia can realize higher cracking conversion rate under the action of advanced catalyst, a large amount of ammonia can be decomposed into hydrogen and nitrogen, and the demand of hydrogen for industrial production can be effectively met.
[0026] As Figures 1 to 4 shown, the top of cracking furnace 13 is installed with drive motor 21;The output end of drive motor 21 is connected with connecting rod 22;Connecting rod 22 is arranged at the inside position of furnace 14;The end of connecting rod 22 is fixedly connected with stirring disc 23;Stirring disc 23 is arranged in the inside of furnace 14 and is rotationally arranged;When ammonia and catalyst are heated and burned in working, connecting rod 22 can be rotated by drive motor 21, and stirring disc 23 can be stirred to ammonia and catalyst, so that better chemical reaction between them is carried out;Through the above structure, liquid ammonia and other substances can be effectively mixed, stirring disc 21 can make them quickly and uniformly mixed together, ensure that raw material components entering vaporization and preheating system are uniform and stable.
[0027] As Figure 4As shown, the end of the exhaust pipe 110 is fixedly connected with the waste gas filter 31; the waste gas filter 31 is arranged at the internal position of the furnace cylinder 14; the end of the discharge pipe 19 is fixedly connected with the impurity filter 32; the impurity filter 32 is arranged at the internal position of the furnace cylinder 14 and is arranged at the symmetry plane of the waste gas filter 31; in working, before the generated waste gas is discharged through the exhaust pipe 110, the waste gas filter 31 can be used for better filtering, so that the discharged waste gas reaches the emission standard, and before the hydrogen and nitrogen reacted by the chemical reaction are discharged through the discharge pipe 19, the impurity filter 32 can be used for filtering treatment, preventing other impurities from entering to cause unnecessary harm; through the above structure, the residual ammonia gas which is not completely decomposed can be effectively treated, the content of ammonia in the waste gas is reduced, the pollution of ammonia to the environment is reduced, and the impurities in the raw material gas are removed to ensure that the hydrogen gas finally prepared reaches the required purity standard and meets the needs of different application scenarios.
[0028] As shown in Figures 1 to 4 , the side wall of the isolation box 11 is provided with a conveying pump 41; the conveying pump 41 is arranged at the end of the liquid ammonia feeding pipe 18 and is connected; the feeding port of the conveying pump 41 is connected with an external connecting pipe 42; in working, when the ammonia storage tank is needed to be stored in the furnace cylinder 14, the conveying pump 41 can be used for better conveying of ammonia to the inside of the furnace cylinder 14, and the conveying amount of ammonia can be controlled; through the above structure, it can be effectively ensured that the raw material can be accurately and stably supplied according to the process requirements, and the continuous reaction is maintained.
[0029] As shown in Figures 1 to 4 , the end of the discharge pipe 19 is fixedly connected with a trapezoidal connecting block 51; the trapezoidal connecting block 51 is arranged at the end of the exhaust pipe 110, the solid feeding pipe 17 and the external connecting pipe 42; in working, when the external connection is needed, the trapezoidal connecting blocks 51 on the solid feeding pipe 17, the discharge pipe 19 and the external connecting pipe 42 can be connected, so that the connection is faster and the sealing is better; through the above structure, a larger contact area can be effectively provided, the connection is more firm, and at the same time, a good seal can be formed at the connection part to prevent gas leakage.
[0030] As shown in Figure 1 , the side wall of the isolation box 11 is provided with a heat dissipation hole 61; the side wall of the isolation box 11 is provided with a filter screen 62; the filter screen 62 is arranged at one side of the heat dissipation hole 61; in working, when the cracking treatment is performed, a large amount of heat is generated, which can be discharged through the heat dissipation hole 61, so that the internal heat reaches a suitable temperature, and the filter screen 62 prevents dust and other substances from entering the inside of the device to cause damage; through the above structure, heat dissipation can be effectively achieved through the heat dissipation hole 61, the temperature of each part in the device can be controlled within a suitable range, which is helpful to improve the efficiency and stability of the equipment.
[0031] As shown in Figure 1As shown in the figure, the bottom of the isolation box 11 is threadedly connected with a load-bearing threaded column 71; the load-bearing threaded column 71 is arranged at the bottom of the four corners of the isolation box 11; the end of the load-bearing threaded column 71 is fixedly connected with an adjusting washer 72; in work, when the device is placed in a specific position, since the ground may be uneven, the load-bearing threaded column 71 can be adjusted by the adjusting washer 72, so that the device reaches balance, and buffering and shock absorption treatment can also be performed when the device is running; through the above structure, the height of the threaded column can be effectively adjusted, and the levelness of the reactor can be accurately adjusted, so that it reaches the best running state.
[0032] In work, when the ammonia needs to be subjected to a cracking reaction, the ammonia can be delivered to the inside of the furnace barrel 14 in the cracking furnace 13 through the liquid ammonia feeding pipe 18, the catalyst is delivered to the inside of the furnace barrel 14 through the solid feeding pipe 17, and the burner 16 drives the heater 15 to perform heating and combustion treatment on the furnace barrel 14, so that the ammonia and the catalyst are subjected to a cracking chemical reaction; in the cracking, the waste gas can be discharged through the exhaust pipe 110 for further treatment, and the hydrogen and nitrogen generated by the reaction can be discharged through the discharge pipe 19 for storage treatment; when the ammonia and the catalyst are subjected to heating and combustion treatment, the connecting rod 22 can be driven to rotate by the driving motor 21, so that the stirring disc 23 can be used to stir the ammonia and the catalyst, so that better chemical reaction between the two is achieved; before the generated waste gas is discharged through the exhaust pipe 110, the waste gas filter 31 can be used to better filter the waste gas, so that the discharged waste gas reaches the emission standard, and before the hydrogen and nitrogen generated by the chemical reaction are discharged through the discharge pipe 19, the impurity filter 32 can be used to filter the hydrogen and nitrogen, so as to prevent other impurities from entering and causing unnecessary harm; when the ammonia storage tank needs to be delivered to the inside of the furnace barrel 14, the ammonia can be better delivered to the inside of the furnace barrel 14 through the delivery pump 41, and the delivery amount of the ammonia can be controlled; when external connection is needed, the solid feeding pipe 17 and the discharge pipe 19 can be connected with the trapezoidal connecting block 51 on the external connection pipe 42, so that the connection is faster and the sealing performance is better; when cracking treatment is performed, a large amount of heat is generated, which can be discharged through the heat dissipation hole 61, so that the internal heat reaches a suitable temperature, and the filter screen 62 prevents dust and other substances from entering the inside of the device and causing damage; when the device is placed in a specific position, since the ground may be uneven, the load-bearing threaded column 71 can be adjusted by the adjusting washer 72, so that the device reaches balance, and buffering and shock absorption treatment can also be performed when the device is running.
[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. An ammonia cracking hydrogen production device comprising an isolation box (11); characterized in that: The isolation box (11) is equipped with a load-bearing frame (12); the load-bearing frame (12) is located at the lower part of the isolation box (11); a pyrolysis furnace (13) is installed on the top of the load-bearing frame (12); a furnace chamber (14) is provided inside the pyrolysis furnace (13); a heater (15) is installed inside the pyrolysis furnace (13); the heater (15) is located at the bottom of the furnace chamber (14); a burner (16) is installed at the bottom of the pyrolysis furnace (13); the burner (16) and the heater (15) are connected; a solid feed pipe (17) is connected to the side wall of the pyrolysis furnace (13); the end of the solid feed pipe (17) is located at the furnace chamber (14). The pyrolysis furnace (13) is located inside the furnace chamber (14) and below the solid feed pipe (17). A discharge pipe (19) is connected to the side wall of the pyrolysis furnace (13). The end of the discharge pipe (19) is located inside the furnace chamber (14) and on the symmetrical side of the liquid ammonia feed pipe (18). An exhaust pipe (110) is connected to the side wall of the pyrolysis furnace (13). The end of the exhaust pipe (110) is located inside the furnace chamber (14) and above the discharge pipe (19) on the symmetrical side of the solid feed pipe (17).
2. The ammonia cracking hydrogen production apparatus according to claim 1, characterized in that: A drive motor (21) is installed on the top of the pyrolysis furnace (13); a connecting rod (22) is connected to the output end of the drive motor (21); the connecting rod (22) is located inside the furnace chamber (14); a stirring plate (23) is fixed to the end of the connecting rod (22); the stirring plate (23) is located inside the furnace chamber (14) and is rotatably arranged.
3. The ammonia cracking hydrogen production apparatus according to claim 2, characterized in that: The exhaust pipe (110) is fixedly connected to an exhaust gas filter (31); the exhaust gas filter (31) is located inside the furnace chamber (14); the discharge pipe (19) is fixedly connected to an impurity filter (32); the impurity filter (32) is located inside the furnace chamber (14) and is located on the symmetrical side of the exhaust gas filter (31).
4. The ammonia cracking hydrogen production apparatus according to claim 3, characterized in that: A delivery pump (41) is installed on the side wall of the isolation box (11); the delivery pump (41) is located at the end of the liquid ammonia inlet pipe (18) and is connected to it; the inlet of the delivery pump (41) is connected to an external pipe (42).
5. The ammonia cracking hydrogen production apparatus according to claim 4, characterized in that: The end of the discharge pipe (19) is fixedly connected to a trapezoidal connecting block (51); the trapezoidal connecting block (51) is located at the end of the exhaust pipe (110), the solid feed pipe (17) and the external pipe (42).
6. The ammonia cracking hydrogen production apparatus according to claim 5, characterized in that: The isolation box (11) has heat dissipation holes (61) on its side wall; the isolation box (11) has a filter screen (62) on its side wall; the filter screen (62) is located on one side of the heat dissipation holes (61).
7. The ammonia cracking hydrogen production apparatus according to claim 6, characterized in that: The bottom of the isolation box (11) is threaded with a load-bearing threaded post (71); the load-bearing threaded post (71) is located at the four corners of the bottom of the isolation box (11); the end of the load-bearing threaded post (71) is fixed with an adjusting washer (72).