Ammonia decomposition device with heat recovery function
By introducing a multi-level filtration system and a spiral heat pipe structure into the ammonia decomposition unit, the problem of heat waste in the ammonia decomposition unit has been solved, and efficient heat recovery and energy utilization efficiency have been improved.
Patent Information
- Application Number
- CN202520400702.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing ammonia decomposition units lack heat recovery capabilities, resulting in heat waste and adverse environmental impacts.
An ammonia decomposition device with heat recovery function was designed, comprising a storage tank, a decomposition furnace, a water storage tank, a filtration mechanism, and a heat pipe. Impurities are removed through a multi-level filtration system, and heat is recovered using a spiral heat pipe.
It achieves efficient heat recovery, reduces energy consumption, simplifies maintenance, and conforms to the environmental protection concept of energy conservation and emission reduction.
Smart Images
Figure CN223810907U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ammonia decomposition technical field, concretely relates to a kind of ammonia decomposition device with heat recovery function. BACKGROUND
[0002] Ammonia decomposition device is a kind of hydrogen production equipment based on ammonia decomposition reaction principle design.Ammonia decomposition reaction refers to the chemical reaction that ammonia is decomposed into hydrogen and nitrogen under the action of certain temperature and catalyst, in industrial production, hydrogen is widely used as an important reducing gas and protective gas, traditional hydrogen production method often needs to consume a large amount of energy and resources, and ammonia decomposition hydrogen production provides a relatively simple, economical hydrogen production way, with the increasing demand for clean energy and efficient use of resources, the application range of ammonia decomposition device is also expanding.
[0003] The existing ammonia decomposition process will produce a large amount of heat, if not recycled, these heat will be wasted, for example, the hydrogen device is disclosed in the ammonia decomposition device with the announcement number CN214060653U, the patent does not have heat recovery function, if there is no heat recovery function, these heat will be directly discharged to the environment, causing great waste of energy, the discharged heat may have adverse effects on the surrounding environment, such as causing local temperature rise, affecting the normal operation of surrounding equipment or ecological environment.
[0004] Therefore, it is necessary to invent a kind of ammonia decomposition device with heat recovery function to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of ammonia decomposition device with heat recovery function to solve the problem of not having heat recovery function in the technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of ammonia decomposition device with heat recovery function, including storage tank, decomposition furnace and water storage tank, the one side of the outside of storage tank is provided with a number of delivery pumps, the gas outlet of storage tank and the gas inlet of a number of delivery pumps are connected by connecting pipe, and connecting pipe is provided with filter mechanism, the other side of the outside of storage tank is provided with decomposition furnace, the one side of the outside of decomposition furnace is provided with heater, the side of a number of delivery pumps is provided with two number of delivery pumps, the side of two number of delivery pumps is provided with water storage tank, the inside of water storage tank is provided with hot pipe.
[0007] Preferably, the filtering mechanism comprises a filter box, the inside of the filter box is sequentially provided with a first filter screen, a second filter screen and an activated carbon adsorption layer, the second filter screen is located between the first filter screen and the activated carbon adsorption layer, the pore size of the first filter screen is larger than that of the second filter screen, and the first filter screen, the second filter screen and the activated carbon adsorption layer jointly constitute a multi-level filtering system, and impurities and particulate matters possibly existing in the ammonia gas are effectively removed.
[0008] Preferably, the filtering mechanism further comprises sliding blocks and sliding grooves, the sliding blocks are located on the side walls on both sides of the first filter screen, the second filter screen and the activated carbon adsorption layer, the sliding grooves are formed in the inner walls of the filter box on both sides, and the sliding blocks and the sliding grooves are matched to form a sliding connection, so that the first filter screen, the second filter screen and the activated carbon adsorption layer can be conveniently disassembled and replaced, and maintenance and cleaning are facilitated.
[0009] Preferably, the gas inlet end of the decomposition furnace is connected with the gas outlet end of the first conveying pump through a first conveying pipe, and the gas inlet end of the decomposition furnace is connected with the gas outlet end of the heater, so that the heated ammonia gas is sent into the decomposition furnace through the first conveying pipe, and the direct connection of the heater and the decomposition furnace also improves the heat energy utilization efficiency.
[0010] Preferably, the gas inlet end of the second conveying pump is connected with the gas outlet end of the decomposition furnace through a second conveying pipe, and the second conveying pump draws the gas containing heat from the decomposition furnace through the second conveying pipe.
[0011] Preferably, the gas inlet end of the water storage tank is connected with the gas outlet end of the second conveying pump through a third conveying pipe, and the third conveying pipe introduces the gas containing heat into the heat pipe in the water storage tank, so that the water is heated by using the heat, and heat recovery is realized.
[0012] Preferably, the heat pipe is designed in a spiral structure, and the spiral structure increases the contact area of the heat pipe and the water and improves the heat exchange efficiency.
[0013] Preferably, one side of the upper end of the heat pipe is connected with an air inlet pipe, and one side of the lower end of the heat pipe is connected with an air outlet pipe, the air inlet pipe penetrates through the water storage tank and is connected to the third conveying pipe, and the air outlet pipe penetrates through the water storage tank and extends to the outside of the water storage tank, so that the gas containing heat can smoothly enter the heat pipe for heat exchange, and the gas after heat exchange is discharged from the water storage tank.
[0014] In the above technical scheme, the technical effects and advantages of the utility model are provided:
[0015] 1. The filtering mechanism in the utility model comprises a filter box, a first filter screen, a second filter screen and an activated carbon adsorption layer, which jointly constitute a multi-level filtering system, can effectively remove impurities and particulate matters possibly existing in ammonia gas, ensure that ammonia gas entering the decomposition furnace is pure and free of impurities, and more importantly, the first filter screen, the second filter screen and the activated carbon adsorption layer are also provided with sliding blocks and sliding grooves, so that the first filter screen, the second filter screen and the activated carbon adsorption layer can be conveniently disassembled and replaced, and this design not only simplifies maintenance work, but also reduces maintenance cost.
[0016] 2. The utility model discloses a kind of through the heat pipe of introducing the gas (mainly the mixed gas of hydrogen and nitrogen) containing heat generated after ammonia decomposition in decomposition furnace into water storage tank in the second conveying pump and the second conveying pipe, and the heat pipe adopts spiral structure design, greatly increase the contact area with water, to improve heat exchange efficiency, this design makes heat can be fully absorbed by water, realizes efficient heat recovery, compared with traditional ammonia decomposition device, the utility model is more efficient in energy utilization, effectively reduce energy consumption, in line with the environmental protection concept of current energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the whole structure schematic view of the utility model;
[0018] Figure 2 It is the filtering mechanism three-dimensional structure schematic view of the utility model;
[0019] Figure 3 It is the filter box section three-dimensional structure schematic view of the utility model;
[0020] Figure 4 It is the sliding block and sliding groove three-dimensional structure schematic view of the utility model;
[0021] Figure 5 It is the water storage tank section three-dimensional structure schematic view of the utility model.
[0022] BRIEF DESCRIPTION OF DRAWINGS
[0023] 1, storage tank;2, first conveying pump;3, filtering mechanism;301, filter box;302, first filter screen;303, second filter screen;304, activated carbon adsorption layer;305, sliding block;306, sliding groove;4, first conveying pipe;5, decomposition furnace;6, heater;7, second conveying pump;8, second conveying pipe;9, third conveying pipe;10, water storage tank;11, heat pipe;12, gas inlet pipe;13, gas outlet pipe. DETAILED DESCRIPTION
[0024] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail in conjunction with the drawings below.
[0025] The utility model provides a kind of ammonia decomposition device with heat recovery function as Figures 1-5 As shown in a kind of ammonia decomposition device with heat recovery function, including storage tank 1, decomposition furnace 5 and water storage tank 10, storage tank 1 outside one side is provided with No. 1 delivery pump 2, the gas outlet of storage tank 1 and the gas inlet of No. 1 delivery pump 2 are connected by connecting pipe, and filtering mechanism 3 is provided on connecting pipe, the other side of storage tank 1 outside is provided with decomposition furnace 5, the one side of decomposition furnace 5 outside is provided with heater 6, the one side of No. 1 delivery pump 2 is provided with No. 2 delivery pump 7, the one side of No. 2 delivery pump 7 is provided with water storage tank 10, the inside of water storage tank 10 is provided with hot pipe 11.
[0026] Filtering mechanism 3 includes filter box 301, the inside of filter box 301 is sequentially provided with No. 1 filter screen 302, No. 2 filter screen 303 and activated carbon adsorption layer 304, No. 2 filter screen 303 is between No. 1 filter screen 302 and activated carbon adsorption layer 304, the aperture of No. 1 filter screen 302 is greater than the aperture of No. 2 filter screen 303, filtering mechanism 3 further includes sliding block 305 and sliding slot 306, sliding block 305 is located at the side wall of both sides of No. 1 filter screen 302, No. 2 filter screen 303 and activated carbon adsorption layer 304, sliding slot 306 is opened in the inside wall of filter box 301, and sliding block 305 and sliding slot 306 are matched to constitute sliding connection.
[0027] The aperture of the provided No. 1 filter screen 302 is large, mainly used for preliminarily filtering out the large impurities and particulate matters in ammonia gas, the aperture of No. 2 filter screen 303 is small, can further remove the small impurities that No. 1 filter screen 302 fails to intercept, and activated carbon adsorption layer 304 utilizes the adsorption performance of activated carbon, effectively removes harmful gas and peculiar smell in ammonia gas, improves the quality of ammonia gas, ensures that ammonia gas entering decomposition furnace 5 is more pure, in addition, the side wall of both sides of No. 1 filter screen 302, No. 2 filter screen 303 and activated carbon adsorption layer 304 is equipped with sliding block 305, these sliding blocks 305 are matched with sliding slot 306 opened in the inside wall of filter box 301, to constitute sliding connection, so that No. 1 filter screen 302, No. 2 filter screen 303 and activated carbon adsorption layer 304 can be conveniently disassembled and replaced, facilitating daily maintenance and cleaning.
[0028] The gas inlet of decomposition furnace 5 is connected with the gas outlet of No. 1 delivery pump 2 with No. 1 delivery pipe 4, the gas inlet of decomposition furnace 5 is connected with the gas outlet of heater 6, the gas inlet of No. 2 delivery pump 7 is connected with the gas outlet of decomposition furnace 5 with No. 2 delivery pipe 8, the gas inlet of water storage tank 10 is connected with the gas outlet of No. 2 delivery pump 7 with No. 3 delivery pipe 9, hot pipe 11 is designed in spiral structure, the upper end of hot pipe 11 is connected with air inlet pipe 12 on one side, the lower end of hot pipe 11 is connected with air outlet pipe 13 on one side, air inlet pipe 12 penetrates water storage tank 10 and is connected to No. 3 delivery pipe 9, and air outlet pipe 13 penetrates water storage tank 10 and extends to its outside.
[0029] The mixed gas containing heat generated by the decomposition, mainly hydrogen and nitrogen, is extracted by the second conveying pump 7 through the second conveying pipe 8 and is sent to the heat exchange pipe 11 in the water storage tank 10 for heat recovery.
[0030] The working principle of the utility model:
[0031] Referring to the drawings Figures 1-4 In use of the utility model, firstly, ensure that the ammonia gas to be decomposed has filled the storage tank 1, then start the first conveying pump 2, the ammonia gas in the storage tank 1 is conveyed to the decomposition furnace 5 through the connecting pipe and the filtering mechanism 3, when the ammonia gas enters the filtering mechanism 3 from the storage tank 1 through the connecting pipe, firstly, pass through the first filter screen 302, remove the large impurities and particulate matters, then, the ammonia gas passes through the second filter screen 303, further remove the small impurities, finally, the ammonia gas passes through the activated carbon adsorption layer 304, remove the harmful gas and peculiar smell by the adsorption performance of activated carbon, at the same time, by the sliding connection of the sliding block 305 and the sliding groove 306, the first filter screen 302, the second filter screen 303 and the activated carbon adsorption layer 304 are conveniently disassembled and replaced, ensure that the filtering effect is continuously stable, however, after the filtered ammonia gas enters the decomposition furnace 5, the heater 6 can be started to heat the ammonia gas entering the decomposition furnace 5, to improve the decomposition efficiency, under the action of the catalyst, the decomposition reaction occurs under high temperature condition, hydrogen and nitrogen are generated, the mixed gas containing heat generated by the decomposition is extracted by the second conveying pump 7 through the second conveying pipe 8, to prepare for the next heat recovery operation;
[0032] Referring to the drawings Figure 5 In use of the utility model, firstly, ensure that the water to be heated has filled the water storage tank 10, then start the second conveying pump 7, the mixed gas containing heat generated by the decomposition furnace 5 is sent to the heat exchange pipe 11 in the water storage tank 10 through the second conveying pipe 8 and the third conveying pipe 9, the mixed gas containing heat flows in the heat exchange pipe 11, fully exchanges heat with water by the spiral structure design, transmits the heat to water, after heat exchange, the temperature of the gas is reduced, the gas is discharged from the water storage tank 10 through the gas outlet pipe 13, the water in the water storage tank 10 is heated and can be used for other process or as hot water supply.
Claims
1. An ammonia decomposition device with heat recovery function, comprising a storage tank (1), a decomposition furnace (5), and a water storage tank (10), characterized in that: A first conveying pump (2) is provided on one side of the outside of the storage tank (1). The air outlet of the storage tank (1) is connected to the air inlet of the first conveying pump (2) through a connecting pipe, and a filter mechanism (3) is provided on the connecting pipe. A decomposition furnace (5) is provided on the other side of the outside of the storage tank (1). A heater (6) is provided on one side of the outside of the decomposition furnace (5). A second conveying pump (7) is provided on one side of the first conveying pump (2). A water storage tank (10) is provided on one side of the second conveying pump (7). A heat pipe (11) is provided inside the water storage tank (10).
2. The ammonia decomposition device with heat recovery function according to claim 1, characterized in that: The filtration mechanism (3) includes a filter box (301). Inside the filter box (301), a first filter screen (302), a second filter screen (303), and an activated carbon adsorption layer (304) are arranged in sequence. The second filter screen (303) is located between the first filter screen (302) and the activated carbon adsorption layer (304). The pore size of the first filter screen (302) is larger than that of the second filter screen (303).
3. An ammonia decomposition device with heat recovery function according to claim 2, characterized in that: The filtration mechanism (3) further includes a slider (305) and a chute (306). The slider (305) is located on the side walls of the first filter screen (302), the second filter screen (303) and the activated carbon adsorption layer (304). The chute (306) is opened on both sides of the inner wall of the filter box (301). The slider (305) and the chute (306) cooperate to form a sliding connection.
4. An ammonia decomposition device with heat recovery function according to claim 1, characterized in that: The inlet of the decomposition furnace (5) is connected to the outlet of the first conveying pump (2) via a first conveying pipe (4), and the inlet of the decomposition furnace (5) is connected to the outlet of the heater (6).
5. An ammonia decomposition device with heat recovery function according to claim 1, characterized in that: The inlet end of the second conveying pump (7) is connected to the outlet end of the decomposition furnace (5) via a second conveying pipe (8).
6. An ammonia decomposition device with heat recovery function according to claim 1, characterized in that: The air inlet of the water storage tank (10) is connected to the air outlet of the second conveying pump (7) via a third conveying pipe (9).
7. An ammonia decomposition device with heat recovery function according to claim 1, characterized in that: The heat pipe (11) has a spiral structure design.
8. An ammonia decomposition device with heat recovery function according to claim 7, characterized in that: The upper end of the heat pipe (11) is connected to an air inlet pipe (12), and the lower end of the heat pipe (11) is connected to an air outlet pipe (13). The air inlet pipe (12) passes through the water storage tank (10) and connects to the No. 3 delivery pipe (9). The air outlet pipe (13) passes through the water storage tank (10) and extends to its outside.