Ammonia gas combustion furnace

Abstract

The utility model relates to the technical field of combustion furnaces, and provides an ammonia gas combustion furnace, which comprises a flue, a heating cavity, a first heat exchanger, a second heat exchanger, a first medium inlet, a first medium outlet, a second medium inlet, a second medium outlet, a third heat exchanger and a third heat exchanger, a heat exchange cavity is formed between the second heat exchanger and the flue, the second heat exchanger is provided with a second medium inlet and a second medium outlet, and the medium pipe is used for leading the first medium outlet to the second medium inlet. By means of the technical scheme, the problem that in the prior art, an ammonia gas combustion furnace is poor in heating effect is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion furnace technical field, specifically, relate to a kind of ammonia combustion furnace. BACKGROUND

[0002] In the field of household heating, traditional heating systems often have low energy utilization efficiency, uneven indoor temperature distribution and difficulty in flexibly responding to changes in heat demand. With the improvement of people's quality of life and the rise of energy costs, there is an increasing demand for efficient, stable and flexible heating systems.

[0003] In traditional heating systems, some systems lack heat recovery and reuse, resulting in energy waste. For example, low-temperature medium flowing back from the heating pipeline is often directly reheated, without fully utilizing its residual heat, increasing energy consumption and heating costs. Moreover, during the heating process, due to the performance limitations of heating equipment, the medium temperature fluctuates greatly, making the output heating medium temperature unstable, which in turn causes uneven indoor temperature distribution, affecting the comfort of living. At the same time, when traditional heating systems face changes in heat demand at different time periods and weather conditions, their adjustment capacity is limited, making it difficult to quickly and accurately adjust heating output, resulting in energy waste or indoor temperature discomfort. SUMMARY

[0004] The utility model provides a kind of ammonia combustion furnace, solve the problem of poor heating effect of ammonia combustion furnace in relevant technology.

[0005] The technical solution of the utility model is as follows:

[0006] A kind of ammonia combustion furnace, comprising

[0007] Flue, the flue has heating cavity, the heating cavity has low-temperature cavity and high-temperature cavity,

[0008] First heat exchanger, the first heat exchanger is connected with the low-temperature cavity heat exchange, the first heat exchanger has first medium inlet and first medium outlet,

[0009] Second heat exchanger, the high-temperature cavity is connected with the second heat exchanger heat exchange, the second heat exchanger and the flue form heat exchange cavity, the second heat exchanger has second medium inlet and second medium outlet,

[0010] Medium pipe, the medium pipe is used for the first medium outlet to the second medium inlet.

[0011] As a further technical solution, further comprising

[0012] Partition, the partition is spirally arranged in the heat exchange cavity, and the partition is arranged in abutment with the side wall of the heat exchange cavity.

[0013] As a further technical solution, the inner wall of the flue has heat exchange protrusions arranged in the heating cavity, the first heat exchanger has heat exchange fins arranged in the low-temperature cavity.

[0014] As a further technical solution, it further comprises

[0015] The shell has a mounting cavity for mounting the flue, the first heat exchanger, the second heat exchanger and the medium pipe,

[0016] The separation partition is arranged in the mounting cavity, and the separation partition and the shell form a control cavity for mounting electrical elements.

[0017] As a further technical solution, it further comprises

[0018] The exhaust fan is rotatably arranged on the shell and located in the control cavity and open to the outside.

[0019] As a further technical solution, the shell has heat dissipation grooves arranged in sequence.

[0020] As a further technical solution, it further comprises

[0021] The temperature sensor is arranged outside the second heat exchanger.

[0022] As a further technical solution, it further comprises

[0023] The dust removal electrode plate is arranged on the first heat exchanger, and the dust removal electrode plate is arranged on the first heat exchanger.

[0024] As a further technical solution, it further comprises

[0025] The drain pipe is arranged in the mounting cavity, and the medium pipe is open to the drain pipe.

[0026] As a further technical solution, the heating cavity has an inlet, and further comprises

[0027] The igniter is arranged on one side of the inlet for introducing high-temperature gas into the heating cavity.

[0028] The working principle and beneficial effects of the utility model are as follows:

[0029] The first heat exchanger is connected with the low-temperature cavity for heat exchange and has a first medium inlet and a first medium outlet. In the household heating system, it is mainly responsible for preheating the low-temperature medium flowing back from the heating pipeline. Through heat exchange with the low-temperature cavity, the temperature of the medium is raised to an appropriate intermediate temperature, preparing for further heating. In this way, the heat generated by ammonia combustion can be fully utilized, energy utilization efficiency is improved, and heating cost is reduced. The high-temperature cavity is connected with the second heat exchanger for heat exchange, and a heat exchange cavity is formed between the two. The second heat exchanger has a second medium inlet and a second medium outlet. Its role in household heating is crucial. It performs high-temperature heating on the medium preheated by the first heat exchanger, so that it reaches the temperature required for household heating. The medium pipe is used to connect the first medium outlet of the first heat exchanger and the second medium inlet of the second heat exchanger, and it is the channel for the circulation of the medium in the entire heating system.

[0030] The preheating effect of the first heat exchanger makes the temperature of the medium entering the second heat exchanger relatively stable, reducing the influence of temperature fluctuations on the heating process. The second heat exchanger performs accurate heating on this basis, ensuring that the output of the heating medium is uniformly stable. This stability makes the temperature distribution in each room more uniform, avoiding local overheating or overcooling, and providing a comfortable living environment for the family. In the process of household heating, the demand for heat in the house will change at different times and under different weather conditions. The coordinated work of the first heat exchanger and the second heat exchanger can flexibly respond to such load changes. When the heat demand increases, the two heat exchangers can jointly improve the heating efficiency to ensure that the indoor temperature remains stable; when the heat demand decreases, they can adjust the working state accordingly to avoid excessive heating and maintain the comfort of the indoor temperature. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above-mentioned characteristics, technical features, advantages and implementation methods of the present application will be further described in the following preferred embodiments in a clear and easy-to-understand manner, combined with the accompanying drawings.

[0032] Figure 1 The structure of the present application is shown in the figure;

[0033] Figure 2 The structure of the present application is shown in the figure;

[0034] Figure 3 is Figure 2 The enlarged structure of the present application is shown in the figure.

[0035] In the figure: flue-1, heating cavity-101, low-temperature cavity-102, high-temperature cavity-103, first heat exchanger-2, first medium inlet-201, first medium outlet-202, second heat exchanger-3, heat exchange cavity-301, second medium inlet-302, second medium outlet-303, medium pipe-4, partition-5, heat exchange protrusion-104, heat exchange fin-203, shell-6, mounting cavity-601, separation partition-7, control cavity-701, exhaust fan-8, heat dissipation groove-602, temperature sensor-9, dust removal electrode plate-10, liquid discharge pipe-11, igniter-12. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0037] In order to make the drawing simple, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0038] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] Reference Figures 1-3The utility model discloses a kind of ammonia combustion furnace, including flue 1, flue 1 has heating cavity 101, heating cavity 101 has low temperature cavity 102 and high temperature cavity 103, first heat exchanger 2 is connected with low temperature cavity 102 heat exchange, first heat exchanger 2 has first medium inlet 201 and first medium outlet 202, high temperature cavity 103 is connected with second heat exchanger 3 heat exchange, second heat exchanger 3 and flue 1 between form heat exchange cavity 301, second heat exchanger 3 has second medium inlet 302 and second medium outlet 303, medium pipe 4 is used for first medium outlet 202 to second medium inlet 302.

[0041] In the embodiment, first heat exchanger 2 is connected with low temperature cavity 102 heat exchange, with first medium inlet 201 and first medium outlet 202. In family heating system, it is mainly responsible for the low temperature medium that is preheated to the return flow from heating pipeline. Through the heat exchange with low temperature cavity 102, medium temperature is raised to a suitable intermediate temperature, and prepares for subsequent further heating. This can make full use of the heat generated by ammonia combustion, improve energy utilization efficiency, and reduce heating cost. High temperature cavity 103 is connected with second heat exchanger 3 heat exchange, and heat exchange cavity 301 is formed between the two. Second heat exchanger 3 has second medium inlet 302 and second medium outlet 303. Its role in family heating is crucial, and the medium preheated by first heat exchanger 2 is heated to a temperature that meets the demand of family heating. Medium pipe 4 is used for connecting first medium outlet 202 of first heat exchanger 2 and second medium inlet 302 of second heat exchanger 3, and it is the channel for medium circulation flow in the whole heating system.

[0042] The preheating effect of first heat exchanger 2 makes the medium temperature entering second heat exchanger 3 relatively stable, reducing the influence of temperature fluctuation on the heating process. Second heat exchanger 3 performs accurate heating on this basis, ensuring that the output of heating medium temperature is uniform and stable. This stability makes the temperature distribution of each room in the room more uniform, avoiding the situation of local overheating or overcooling, and providing a comfortable living environment for the family. In the process of family heating, the demand for heat of the house will change at different time periods and under different weather conditions. The cooperative work of first heat exchanger 2 and second heat exchanger 3 can flexibly respond to such load changes. When the heat demand increases, the two heat exchangers can jointly improve the heating efficiency to ensure that the indoor temperature remains stable; when the heat demand decreases, they can adjust the working state accordingly to avoid excessive heating and maintain the comfort of indoor temperature.

[0043] Further, it further includes baffle 5, baffle 5 is spirally arranged in heat exchange cavity 301, baffle 5 is arranged with the side wall of heat exchange cavity 301 abutment.

[0044] In this embodiment, the spiral arrangement of the baffle 5 significantly increases the heat exchange area inside the heat exchange cavity 301. When the hot gas after combustion of the high-temperature medium exchanges heat with the second heat exchanger 3, the presence of the baffle 5 makes the flow path of the medium in the heat exchange cavity 301 longer. The medium needs to flow along the spiral path of the baffle 5, increasing the contact area with the heat exchanger, so there is more opportunity for heat transfer. Compared with a simple heat exchange cavity 301 without a baffle 5, this spiral baffle 5 design can improve the heat exchange efficiency. This means that the heat in the high-temperature medium can be more effectively transferred to the medium in the second heat exchanger 3 in the same time, improving the energy utilization efficiency of the entire combustion furnace.

[0045] The baffle 5 plays a role in guiding and distributing heat in the heat exchange cavity 301. Due to its spiral structure, the high-temperature medium will be more uniformly in contact with the heat exchanger surface during flow, avoiding uneven heat exchange caused by local heat concentration. This uniform heat distribution helps to improve the overall heat exchange effect of the heat exchanger, allowing the medium to more stably absorb heat during the entire heat exchange process, further improving the efficiency and quality of heat exchange.

[0046] During heat exchange, there may be differences in medium temperature at different locations. The spiral structure of the baffle 5 causes the medium to be continuously divided and mixed during flow. When the high-temperature medium flows along the baffle 5, it drives the surrounding medium to move together, forming a spiral mixing flow pattern. This mixing effect can make the temperature and composition of the medium more uniform, improving the uniformity and consistency of heat exchange.

[0047] The spiral baffle 5 changes the flow state of the medium in the heat exchange cavity 301, transforming it from simple linear flow to spiral flow. This spiral flow has certain centrifugal and centripetal effects, which can reduce the laminar flow phenomenon in the medium flow and increase the degree of turbulence. The turbulent flow of the medium is more intense, with a higher heat transfer coefficient, which is beneficial to improving the heat exchange efficiency.

[0048] At the same time, spiral flow can also reduce the stagnation and deposition of medium near the wall of the heat exchange cavity 301, reducing the possibility of dirt and impurities adhering to the wall, thereby maintaining the cleanliness of the heat exchanger surface and reducing the problem of heat exchange efficiency decline and equipment maintenance cost increase caused by dirt accumulation.

[0049] The baffle 5 is in abutment with the side wall of the heat exchange cavity 301, providing additional support structure for the heat exchange cavity 301. During the operation of the combustion furnace, the heat exchange cavity 301 may be subjected to certain pressure, especially when the high-temperature medium flows at high speed, resulting in large pressure fluctuations. The presence of the baffle 5 can share part of the pressure, enhancing the overall pressure resistance of the heat exchange cavity 301 and reducing the risk of deformation or damage of the cavity wall due to excessive pressure.

[0050] Further, the inner wall of the flue 1 has heat exchange protrusions 104 arranged in the heating chamber 101, and the first heat exchanger 2 has heat exchange fins 203 arranged in the low-temperature chamber 102.

[0051] In this embodiment, the presence of the heat exchange protrusions 104 significantly increases the heat exchange area between the inner wall of the flue 1 and the medium. When the heat generated by the combustion of ammonia is transferred to the flue 1, the protruding parts can be in more complete contact with the medium, and more heat can be transferred to the medium compared to a smooth inner wall, thereby improving the heating efficiency.

[0052] When the medium flows in the flue 1, the heat exchange protrusions 104 disturb the flow state of the medium, and the medium flows more violently, with a higher heat transfer coefficient. Because the internal temperature distribution is more uniform after the flow state is disturbed, the thickness of the thermal boundary layer is reduced, thereby enhancing the heat transfer process from the inner wall of the flue 1 to the medium.

[0053] The heat exchange protrusions 104 increase the contact points and contact area between the inner wall of the flue 1 and the medium, thereby reducing the thermal resistance of heat conduction. Heat can be more quickly transferred from the flue 1 to the medium, improving the efficiency of heat conduction.

[0054] The heat exchange fins 203 are arranged in the low-temperature chamber 102, greatly increasing the heat exchange area between the first heat exchanger 2 and the medium in the flue 1. The surface area of the fins is relatively large, which can more effectively absorb the heat in the flue 1 and transfer it to the medium in the first heat exchanger 2. This allows the first heat exchanger 2 to more quickly raise the temperature of the medium during the low-temperature preheating process, improving the energy utilization efficiency of the entire system.

[0055] Further, it also includes a housing 6 having a mounting cavity 601 for mounting the flue 1, the first heat exchanger 2, the second heat exchanger 3, and the medium pipe 4, and a separation partition 7 is arranged in the mounting cavity 601, which forms a control cavity 701 with the housing 6 for installing electrical components.

[0056] In this embodiment, the housing 6 provides physical protection for the various internal components, preventing direct damage from external factors. In a home use environment, there may be dust, moisture, etc., and the housing 6 can effectively block these substances from eroding the key components such as the flue 1 and the heat exchanger, extending the service life of the equipment. At the same time, the housing 6 also serves as a support and fixation for the internal components, ensuring that they maintain a relatively stable position during operation, reducing the risk of connection loosening or failure due to vibration or displacement.

[0057] The installation cavity 601 is designed to rationally plan the internal space, so that the flue 1, heat exchanger and medium pipe 4 and other components can be orderly installed therein. This layout helps to improve the space utilization, making the structure of the combustion furnace more compact. The rational space layout also facilitates the connection of pipelines and lines, reduces the crossing and winding of pipelines, and improves the reliability and maintainability of the system.

[0058] For home installation, compact structure can save installation space, making it easier to adapt to different house layouts. At the same time, the clear space layout also facilitates maintenance personnel to quickly and accurately find each component when equipment maintenance or troubleshooting is needed, improving work efficiency.

[0059] The control cavity 701 formed by the separation partition 7 separates the electrical components from other working components. Electrical components may generate electric sparks, electromagnetic interference, etc. during operation, and also have certain requirements for the humidity and temperature of the environment. The control cavity 701 provides a relatively independent space for electrical components, avoiding the influence of high temperature, corrosive gas generated during ammonia combustion and other mechanical components, ensuring the normal operation and safety of electrical components.

[0060] Concentrating the installation of electrical components in the control cavity 701 facilitates unified maintenance and management of the electrical system. When electrical components need to be repaired, replaced or upgraded, maintenance personnel can directly enter the control cavity 701 to operate without the need to disassemble the entire combustion furnace. This design improves the convenience of maintenance and reduces maintenance time and cost.

[0061] In addition, the control cavity 701 also facilitates wiring and line arrangement, making the electrical system more clear and orderly, facilitating fault diagnosis and daily inspection and maintenance. At the same time, heat dissipation devices, moisture-proof measures, etc. can be set in the control cavity 701 according to needs, further optimizing the working environment of electrical components and improving the stability and reliability of the electrical system.

[0062] Further, it further comprises an exhaust fan 8, which is rotatably arranged on the shell 6 and located in the control cavity 701 and open to the outside.

[0063] In this embodiment, electrical components are installed in the control cavity 701, which will generate a certain amount of heat during operation. If the heat cannot be dissipated in time, it may cause the temperature of the electrical components to be too high, affecting their performance and life, and even may cause failure. The setting of the exhaust fan 8 can effectively exhaust the hot air in the control cavity 701 and introduce relatively cool air from the outside, thereby reducing the working temperature of the electrical components.

[0064] Stable temperature is crucial for the normal operation of electrical components. The exhaust fan 8 can maintain the temperature in the control chamber 701 relatively stable by constantly exchanging air, avoiding excessive temperature fluctuations that may adversely affect electrical components. In addition, good heat dissipation can also prevent problems such as performance degradation and parameter drift of electrical components caused by excessive temperature.

[0065] Further, the shell 6 has heat dissipation grooves 602 arranged in sequence.

[0066] In this embodiment, the presence of the heat dissipation grooves 602 significantly increases the surface area of the shell 6, thereby providing more avenues for heat dissipation. When the ammonia gas burner is in operation, the heat generated inside will be transferred to the shell 6. Through the design of the heat dissipation grooves 602, the contact area between the shell 6 and the surrounding air is increased, allowing heat to be dissipated more effectively. The arrangement of the heat dissipation grooves 602 helps to promote air convection. When air flows through the heat dissipation grooves 602, it forms a local air circulation, accelerating heat transfer. This convection effect can quickly remove heat from the surface of the shell 6, improving heat dissipation efficiency.

[0067] Effective heat dissipation can prevent the internal temperature of the ammonia gas burner from being too high, thereby ensuring the stable operation of the equipment. If the equipment overheats, it may cause damage to electrical components, deformation of mechanical parts, and other problems, affecting the performance and lifespan of the equipment. The presence of the heat dissipation grooves 602 can promptly dissipate heat, maintaining the equipment within an appropriate temperature range.

[0068] Uneven temperature distribution can generate thermal stress inside the equipment, which may cause deformation of the shell 6, failure of the sealing elements, and other problems. The uniform arrangement of the heat dissipation grooves 602 can make the temperature distribution of the shell 6 more uniform, reducing the generation of thermal stress. This helps to prolong the service life of the equipment and improve the structural stability of the equipment.

[0069] Further, it also includes a temperature sensor 9 arranged outside the second heat exchanger 3.

[0070] In this embodiment, the temperature sensor 9 is connected to the control system of the burner. Based on the temperature data fed back by the temperature sensor 9, the control system can optimize and adjust the combustion process of ammonia gas. For example, if the temperature outside the second heat exchanger 3 is lower than the set value, it indicates that the combustion amount of ammonia gas needs to be increased or the combustion efficiency needs to be improved to increase the temperature of the heat exchanger, thereby ensuring the heating effect. Conversely, if the temperature is too high, the ammonia gas supply can be appropriately reduced or the combustion conditions can be adjusted to prevent overheating damage to the equipment and waste energy. Through this real-time feedback adjustment mechanism, the ammonia gas burner can always operate in the best working state, improving energy utilization efficiency, while ensuring the stability and comfort of heating.

[0071] In modern intelligent heating systems, the temperature sensor 9 is one of the key components for achieving automatic control. It can transmit real-time temperature data to the control system, which automatically adjusts and controls the combustion furnace according to pre-set programs and algorithms without human intervention. This automatic control not only improves the operating efficiency and precision of the heating system, but also reduces the errors and labor intensity of manual operation.

[0072] Long-term monitoring of the temperature changes outside the second heat exchanger 3 can evaluate the performance of the heat exchanger. By analyzing the trend of temperature data, it can be known whether the heat exchange efficiency of the heat exchanger is declining, whether there are problems such as scaling or blocking, etc. If abnormal fluctuations or long-term deviation from the normal range are found in the temperature data, the heat exchanger can be checked and maintained to restore its performance.

[0073] The temperature data of the temperature sensor 9 can also provide important clues for fault diagnosis of the combustion furnace. When the combustion furnace fails, by analyzing the changes in readings of the temperature sensor 9 at different positions, the location and cause of the failure can be preliminarily judged. For example, if the temperature on one side of the second heat exchanger 3 is significantly abnormal while the temperature at other positions is normal, it may be that the heat exchanger itself or the components related to it have problems, such as pipe blockage, heat exchange fin 203 damage, etc.

[0074] Further, it further includes a dust removal electrode plate 10, the dust removal electrode plate 10 is arranged on the first heat exchanger 2, and the dust removal electrode plate 10 is arranged on the plurality of heat dissipation fins of the first heat exchanger 2 in a plurality of groups.

[0075] In this embodiment, various solid pollutants such as soot and particulate matter are generated during the ammonia combustion process. The heat exchange electrode plate is arranged on the first heat exchanger 2, and its surface has certain physical and chemical properties, which can effectively intercept and adsorb these solid pollutants. When the combustion gas carrying solid pollutants passes through the heat exchange electrode plate, the electrode plate will use its own electric field force, surface tension or physical structure to make the solid pollutants adhere to the surface of the electrode plate, thereby preventing them from entering the surrounding environment. For tiny soot particles, the heat exchange electrode plate can capture them by electrostatic adsorption, just like a filter, separating these harmful substances from the combustion exhaust gas. This interception and adsorption can greatly reduce the emission of solid pollutants and reduce the degree of air pollution. The heat exchange electrode plate can also promote the agglomeration and settling of solid pollutants. During the operation of the combustion furnace, some solid pollutants may exist in the gas in the form of small particles, which are difficult to settle or be removed by filtration. The presence of the heat exchange electrode plate provides a surface for these small particle pollutants to collide and agglomerate, forming larger particles. Larger particles of pollutants are more likely to settle under the action of gravity, thereby further improving the removal efficiency of pollutants.

[0076] The removal of solid pollutants generated during the combustion process directly reduces emissions into the atmosphere, playing an important role in reducing air pollution. Solid pollutants such as soot can affect air quality, leading to environmental problems such as smog, and pose a threat to human health and the ecological environment. Through the action of the heat exchange plate, the content of solid pollutants emitted by the ammonia gas combustion furnace into the atmosphere can be significantly reduced, improving the air quality of the surrounding environment.

[0077] Solid pollutants, especially inhalable particulate matter, are one of the important factors that trigger respiratory diseases. When people inhale air containing these pollutants, particles can deposit in different parts of the respiratory tract, causing diseases such as coughing, wheezing, bronchitis, and long-term exposure can lead to more serious lung diseases such as emphysema, lung cancer, etc. The heat exchange plate removes solid pollutants during the combustion process, reducing the concentration of particulate matter in the air, thereby reducing the risk of people inhaling these harmful substances and protecting the respiratory health of the human body. For ammonia gas combustion furnaces used in households, this means that during the use of winter heating and other processes, family members can breathe cleaner air, reducing health problems caused by air pollution, especially for the elderly, children, and people with respiratory diseases, this protective effect is more important.

[0078] Further, the liquid discharge pipe 11 is provided in the installation cavity 601, and the medium pipe 4 is connected to the liquid discharge pipe 11.

[0079] In this embodiment, the liquid discharge pipe 11 is provided in the installation cavity 601, and the medium pipe 4 is connected to the liquid discharge pipe 11. The liquid discharge pipe 11 usually has a certain pipe diameter and material to meet the needs of liquid discharge. The connection method of the medium pipe 4 and the liquid discharge pipe 11 should ensure that the liquid can flow smoothly from the medium pipe 4 into the liquid discharge pipe 11, avoiding problems such as leakage or blockage, and when the ammonia gas combustion furnace is not in use, the heat exchange medium in the ammonia gas combustion furnace can be smoothly discharged, prolonging the service life of the ammonia gas combustion furnace.

[0080] Further, the heating cavity 101 has an inlet, and further comprises an igniter 12, which is arranged on one side of the inlet and used for introducing high-temperature gas into the heating cavity 101.

[0081] In this embodiment, the igniter 12 can realize the rapid start of the ammonia gas combustion furnace, so that the device can reach the working state in a short time and provide timely heat supply for the user. Whether it is in the morning when getting up for household heating, or in the device start-up stage in industrial production, this rapid start-up capability can improve the use efficiency of the device, reduce the waiting time, and improve the convenience of production and life.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. An ammonia combustion furnace, characterized by, The utility model relates to a heat exchange device for high-temperature gas, comprising A flue (1) with a heating cavity (101) having a low-temperature cavity (102) and a high-temperature cavity (103), A first heat exchanger (2) in heat exchange connection with the low-temperature cavity (102) and having a first medium inlet (201) and a first medium outlet (202), A second heat exchanger (3) in heat exchange connection with the high-temperature cavity (103) and forming a heat exchange cavity (301) with the flue (1), the second heat exchanger (3) having a second medium inlet (302) and a second medium outlet (303), A medium pipe (4) for the first medium outlet (202) leading to the second medium inlet (302).

2. An ammonia burner as claimed in claim 1, characterized in that Further comprising A partition plate (5) spirally arranged in the heat exchange cavity (301) and in abutment with the side wall of the heat exchange cavity (301).

3. An ammonia burner as claimed in claim 1, characterized in that The inner wall of the flue (1) has heat exchange protrusions (104) arranged in the heating cavity (101), and the first heat exchanger (2) has heat exchange fins (203) arranged in the low-temperature cavity (102).

4. The ammonia burner of claim 1, wherein Further comprising A housing (6) having a mounting cavity (601) for mounting the flue (1), the first heat exchanger (2), the second heat exchanger (3), and the medium pipe (4), A separation partition plate (7) arranged in the mounting cavity (601) and forming a control cavity (701) with the housing (6) for mounting electrical elements.

5. An ammonia burner as claimed in claim 4, characterized in that Further comprising An exhaust fan (8) rotatably arranged on the housing (6) and located in the control cavity (701) leading to the outside.

6. An ammonia burner as claimed in claim 4, characterized in that The housing (6) has heat dissipation grooves (602) arranged in sequence.

7. The ammonia burner of claim 1, wherein Further comprising A temperature sensor (9) arranged outside the second heat exchanger (3).

8. An ammonia burner as claimed in claim 1, characterized in that Further comprising A dust removal electrode plate (10) arranged on the first heat exchanger (2), the dust removal electrode plate (10) being arranged on a plurality of heat dissipation fins of the first heat exchanger (2).

9. An ammonia burner as claimed in claim 4, characterized in that Further comprising A liquid discharge pipe (11) arranged in the mounting cavity (601) and leading to the medium pipe (4).

10. The ammonia burner of claim 1, wherein The heating cavity (101) has an inlet, and further comprising An igniter (12) arranged on one side of the inlet for introducing high-temperature gas into the heating cavity (101).

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