Combustion system
By employing a staged combustion system and a multi-inlet design, the problem of pressure rise caused by violent exhaust gas reactions has been solved, achieving high efficiency, stability, and safety in exhaust gas treatment.
Patent Information
- Application Number
- CN202423323384.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing combustion methods result in violent reactions of waste gas during waste gas treatment, leading to a sharp increase in furnace pressure, which affects combustion efficiency and poses an explosion risk.
A staged combustion system is adopted, which increases the residence time of exhaust gas through a U-shaped channel design and uses multiple air inlets and control valves to regulate the amount of compressed air supplied, thereby achieving staged combustion and maintaining stable pressure in the reaction chamber.
It improves the efficiency of waste gas treatment, reduces the risk of explosion, and ensures the stability and safety of the combustion process.
Smart Images
Figure CN223726370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waste gas treatment technical field, specifically, relate to a combustion system. BACKGROUND
[0002] With the continuous development of industrial production, waste gas treatment becomes an important link of environmental protection. In the existing waste gas treatment method, combustion method is widely applied because of its high efficiency and simple operation. The basic principle of combustion method is to decompose harmful gas into harmless substance through high temperature, so as to achieve the purpose of purifying waste gas.
[0003] However, the inventors found that in the combustion process, the combustible components in the waste gas will react violently at high temperature, causing the pressure in the furnace to rise sharply. This pressure rise not only affects the combustion efficiency, but also may cause equipment damage, and even cause explosion accidents. SUMMARY
[0004] The utility model provides a kind of combustion system, the combustion system includes reaction chamber and the partition plate located in reaction chamber.Wherein, reaction chamber is equipped with the inlet and outlet located in the two sides of respectively partition plate, and partition plate and the inner wall of reaction chamber cooperate to form U type channel for the waste gas guiding flow.Based on the setting of U type channel, waste gas from inlet is discharged again from outlet after being flow around partition plate.In this process, the detour airflow path increases the residence time of waste gas in reaction chamber, so that reaction is more sufficient, and waste gas treatment efficiency is higher.On the basis described above, reaction chamber is also equipped with first air supplement port close to inlet and second air supplement port close to outlet, i.e., reaction chamber is also equipped with first air supplement port and second air supplement port located on the flow path of waste gas and respectively arranged in the two sides of partition plate.It needs to be explained that first air supplement port and second air supplement port are all used to pass into compressed air, so as to sequentially react with waste gas, realize staged combustion, ensure that the pressure in reaction chamber is always in stable state, and waste gas can be stably combusted and treated. BRIEF DESCRIPTION OF DRAWINGS
[0005] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the embodiment, it should be understood that the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, on the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0006] Figure 1 Structure diagram of combustion system provided for the embodiment Figure 1 ;
[0007] Figure 2 Structure diagram of combustion system provided for the embodimentFigure 2 ;
[0008] Figure 3 Structure diagram of the combustion system provided for the embodiment Figure 3 ;
[0009] Figure 4 Structure diagram of the combustion system provided for the embodiment Figure 3 Structure diagram of the combustion system provided for the embodiment
[0010] Figure 5 Structure diagram of the combustion system provided for the embodiment Figure 4 ;
[0011] Figure 6 Structure diagram of the combustion system provided for the embodiment Figure 5 Structure diagram of the combustion system provided for the embodiment
[0012] Figure 7 Structure diagram of the combustion system provided for the embodiment Figure 5 Another structure diagram of the combustion system provided for the embodiment
[0013] Figure: 10 - combustion system; 100 - reaction chamber; 101 - inlet; 102 - outlet; 103 - first air supplementing port; 104 - second air supplementing port; 105 - third air supplementing port; 106 - fourth air supplementing port; 110 - inner cylinder; 111 - third water port; 113 - fourth water port; 120 - first water cooling cavity; 130 - outer cylinder; 131 - first water port; 133 - second water port; 151 - first channel; 153 - second channel; 210 - first combustion area; 230 - second combustion area; 250 - third combustion area; 300 - partition plate; 310 - second water cooling cavity; 400 - pressure relief pipe. DETAILED DESCRIPTION
[0014] In the related art, the waste gas purification scheme that harmful gas is decomposed into harmless substances by combustion is used, and the problem of explosive accidents caused by the reaction being violent and the furnace pressure rising sharply is caused.
[0015] In view of the above problems, the utility model provides a kind of combustion system 10, which uses the scheme of hierarchical combustion, maintains the pressure of the inner cavity of reaction chamber 100 always in stable state, to ensure that waste gas can be stably combusted.
[0016] To make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment, apparently, the described embodiment is part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.
[0017] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.
[0018] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0019] In the description of the application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.
[0020] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0021] It should be noted that the features in the embodiments of the application can be combined with each other without conflict.
[0022] The overall structure, working principle and technical effects of the combustion system 10 provided by the application will be described in detail below through embodiments and in conjunction with the drawings. Figure 1 Structure diagram of the combustion system 10 provided for the embodiment Figure 1 , Figure 2 Structure diagram of the combustion system 10 provided for the embodiment Figure 2 , Figure 3 Structure diagram of the combustion system 10 provided for the embodiment Figure 3 , Figure 4 Structure diagram of the combustion system 10 provided for the embodiment Figure 3 Structure diagram of the combustion system 10 provided for the embodiment Figures 1 to 4 The application provides a combustion system 10 applied to the technical field of waste gas treatment, comprising a reaction chamber 100 and a partition plate 300 located in the reaction chamber 100.
[0023] The reaction chamber 100 is provided with an inlet 101 and an outlet 102 on the two sides of the partition plate 300 respectively, and the partition plate 300 cooperates with the inner wall of the reaction chamber 100 to form a U-shaped channel for guiding the exhaust gas. Based on the arrangement of the U-shaped channel, the exhaust gas entering from the inlet 101 flows around the partition plate 300 and then is discharged from the outlet 102. In this process, the circuitous flow path increases the residence time of the exhaust gas in the reaction chamber 100, so that the reaction is more sufficient and the exhaust gas treatment efficiency is higher.
[0024] On the basis of the above, the reaction chamber 100 is also provided with a first air supplement port 103 close to the inlet 101 and a second air supplement port 104 close to the outlet 102, that is, the reaction chamber 100 is also provided with the first air supplement port 103 and the second air supplement port 104 on the flow path of the exhaust gas and on the two sides of the partition plate 300 respectively. It should be noted that the first air supplement port 103 and the second air supplement port 104 are both used to introduce compressed air to react with the exhaust gas in turn, realize staged combustion, and ensure that the pressure in the reaction chamber 100 is always in a stable state, so that the exhaust gas can be stably combusted and treated.
[0025] Please refer again to Figure 4 and Figure 5 To further increase the flow path and residence time of the exhaust gas in the reaction chamber 100, the U-shaped channel is arranged in reverse, that is, the bottom wall of the reaction chamber 100 is provided with the inlet 101 and the outlet 102, and there is a gap between the top wall of the reaction chamber 100 and the partition plate 300. Based on this, the exhaust gas enters from the inlet 101 at the bottom wall, climbs from bottom to top on one side of the partition plate 300, reaches the top wall, and then jumps to the other side of the partition plate 300 through the gap between the partition plate 300 and the top wall, and then is discharged from top to bottom.
[0026] Considering that the exhaust gas stays in the gap between the partition plate 300 and the top wall for a long time, the reaction chamber 100 is provided with a third air supplement port 105 corresponding to the gap. Similar to the foregoing, the third air supplement port 105 is also used to introduce compressed air. It is easy to understand that the addition of the third air supplement port 105 can further control the mixing ratio and combustion speed of the exhaust gas and the compressed air, reduce the pressure and temperature at a single air supplement port (the first air supplement port 103 / the second air supplement port 104), and reduce the risk of explosion.
[0027] Based on the above arrangement of the first air supplement port 103, the second air supplement port 104 and the third air supplement port 105, as Figure 4As shown, from the inlet 101 to the outlet 102, the reaction chamber 100 comprises a first combustion area 210 located at the side of the inlet 101, a third combustion area 250 located at least partially at the interval, and a second combustion area 230 located at the side of the outlet 102. It is easy to understand that the first combustion area 210 and the second combustion area 230 are arranged close to the bottom wall of the reaction chamber 100, and are respectively located at the two sides of the partition plate 300; the third combustion area 250 is arranged close to the top wall of the reaction chamber 100.
[0028] In addition, the reaction chamber 100 is also provided with a first pressure sensor located at the first combustion area 210, a second pressure sensor located at the second combustion area 230, and a third pressure sensor located at the third combustion area 250. It is easy to understand that by arranging pressure sensors in different combustion areas, the pressure changes of each area can be monitored respectively, and the pressure state and reaction intensity of each area can be accurately monitored.
[0029] In addition, it should be noted that in order to make the exhaust gas achieve local small combustion, local small combustion and complete treatment and dilution below the limit value in the first combustion area 210, the third combustion area 250 and the second combustion area 230 respectively, a first control valve, a second control valve and a third control valve for controlling the on-off of compressed air can be arranged on the gas supply pipeline communicated with the first air supplement port 103, the second air supplement port 104 and the third air supplement port 105 respectively. Correspondingly, the first pressure sensor, the second pressure sensor and the third pressure sensor can be respectively connected in communication with the first control valve, the second control valve and the third control valve, so as to adjust the amount of compressed air in each area in real time according to the pressure fluctuation of each area detected in the reaction chamber 100, and maintain the pressure stability in the reaction chamber 100.
[0030] In practical application, since the first air supplement port 103 is located at the front section of the flow path and is in the environment of high-temperature and high-concentration exhaust gas, the reaction between the compressed air introduced by the first air supplement port 103 and the exhaust gas is the main reaction; the third air supplement port 105 is located at the middle section of the flow path and is in the environment of relatively high-temperature and relatively high-concentration exhaust gas, the reaction between the compressed air introduced by the third air supplement port 105 and the exhaust gas is the secondary reaction; the second air supplement port 104 is located at the end section of the flow path and is in the environment of low-temperature and low-concentration exhaust gas, the compressed air introduced by the second air supplement port 104 is used to react with and dilute the exhaust gas.
[0031] Based on the above, the opening degree of the first control valve can be adjusted by a P ID (Proportion-Integral-Derivative) control algorithm according to the pressure feedback mechanism in the first combustion area 210. For example, when the first pressure sensor detects that the pressure value in the first combustion area 210 increases sharply, it is determined that there is a risk of explosion, at which time the opening degree of the first control valve is reduced, the amount of compressed air is reduced, the amount of reaction of the exhaust gas is reduced, the pressure of the reaction chamber 100 is reduced, and the risk of explosion is prevented. For another example, when the first pressure sensor detects that the pressure value in the first combustion area 210 is in a stable state, it is determined that there is no risk of explosion of the exhaust gas, at which time the compressed air can continue to be supplied based on the existing opening degree of the first control valve. Similarly, the opening degree of the third control valve can also be adjusted by a P ID control algorithm according to the pressure feedback mechanism in the third combustion area 250, which will not be described herein.
[0032] In some embodiments, in order to achieve safer, more efficient and more environmentally friendly staged combustion, the third combustion area 250 can further include a plurality of sub-combustion areas arranged in sequence along the flow direction of the exhaust gas; correspondingly, the reaction chamber 100 can be provided with a plurality of sub-air supply openings for supplying compressed air to the plurality of sub-combustion areas; and the combustion system 10 can further include a plurality of regulating valves for regulating the amount of compressed air supplied to the plurality of sub-combustion areas through the plurality of sub-air supply openings.
[0033] It should be further noted that in the above-mentioned embodiments provided with more than three air supply openings and control valves, except for the control valve corresponding to the air supply opening located at the end of the flow path, the remaining control valves are adjustable opening degree control valves, that is, any control valve before the above-mentioned second control valve is an adjustable opening degree control valve, the opening degree of which is adjusted by a control algorithm such as a P ID control algorithm based on a pressure feedback mechanism to control the supply of compressed gas, maintain the internal pressure of the reaction chamber 100 stable, and avoid the occurrence of deflagration. For the second control valve located at the outlet 102 of the reaction chamber 100, it is ensured to be in a normally open state to maintain the supply of oxygen-enriched air so that the exhaust gas can be fully combusted.
[0034] As mentioned above, the first combustion area 210 and the third combustion area 250 are the main reaction area and the secondary reaction area, respectively, in order to improve the uniformity of the exhaust gas reaction and avoid excessive local reaction, the number of the first air supply openings 103 is a plurality, and the plurality of first air supply openings 103 are arranged along the circumference of the reaction chamber 100. Correspondingly, the number of the third air supply openings 105 is also a plurality, and the plurality of third air supply openings 105 are arranged along the circumference of the reaction chamber 100.
[0035] It should be further noted that, in the case that the third air supplementing port 105 is in a plurality, it can be equidistantly spaced along the circumference of the whole reaction chamber 100, so as to uniformly act on the exhaust gas flowing through the interval; in the case that the first air supplementing port 103 is in a plurality, it can be equidistantly spaced along one side of the inlet 101 of the reaction chamber 100, so as to uniformly act on the exhaust gas passing through the inlet 101. In addition, in order to further improve the oxygen enrichment degree in the second region, one side of the outlet 102 of the reaction chamber 100 can also be equidistantly spaced to correspondingly set the fourth air supplementing port 106, and optionally, the first air supplementing port 103 and the fourth air supplementing port 106 are connected or disconnected by the same control valve to supply compressed air.
[0036] Considering that a huge amount of heat will be released when the exhaust gas reacts, please refer to Figure 3 and Figure 4 again, the reaction chamber 100 comprises an inner cylinder 110 and an outer cylinder 130. The inner cavity of the inner cylinder 110 is a combustion chamber for introducing exhaust gas and compressed air for combustion reaction. The outer cylinder 130 and the inner cylinder 110 jointly form a double-layer structure, and the inner wall of the outer cylinder 130 and the outer wall of the inner cylinder 110 form a first water cooling cavity 120. It is easy to understand that the cooling water in the first water cooling cavity 120 can effectively absorb the high-temperature heat generated by the combustion chamber, so as to ensure that the temperature of the reaction chamber 100 is controllable.
[0037] In some embodiments, in order to facilitate the recycling of the above-mentioned high-temperature heat, the cooling water in the first water cooling cavity 120 can be circulating water, as shown in Figure 1 The outer cylinder 130 is provided with a first water inlet 131 and a second water inlet 133 along the vertical direction. It is easy to understand that the cooling water is introduced into the first water cooling cavity 120 through one of the first water inlet 131 and the second water inlet 133, and the cooling water in the first water cooling cavity 120 is discharged through the other of the first water inlet 131 and the second water inlet 133.
[0038] For example, as shown in Figure 3 , the first water inlet 131 is located below the second water inlet 133, and the circulating water flows from bottom to top after entering the first water cooling cavity 120 through the first water inlet 131, so as to ensure that it can fully contact and absorb the heat released by the inner wall of the combustion chamber, and the heat exchange efficiency is maximized. In addition, it should be further noted that, in the case that the water source is a circulating water tank, the first water inlet 131 and the second water inlet 133 are both connected with the water source; in the case that the water source is a PCW, one of the first water inlet 131 and the second water inlet 133 is connected with the water source, and the other is connected with a heat supply pipeline to supply heat to other processes, thereby improving the energy utilization rate.
[0039] Correspondingly, please refer to Figures 5 to 7To avoid the separation plate 300 from being burned by high temperature, the separation plate 300 is a hollow structure, and the inner cavity of the separation plate 300 is a second water cooling cavity 310. It is easy to understand that the existence of the second water cooling cavity 310 ensures that the temperature of the separation plate 300 is always within a safe range, prolonging the service life of the separation plate 300.
[0040] In addition, in some embodiments, as shown in Figure 6 The connection between the inner cylinder 110 and the separation plate 300 is spaced apart along the vertical direction by a third water gap 111 and a fourth water gap 113. And the second water cooling cavity 310 communicates with the first water cooling cavity 120 through the third water gap 111 and the fourth water gap 113. Based on this, the first water cooling cavity 120 and the second water cooling cavity 310 are commonly circulated and communicated, forming a multi-level cooling system, improving the overall thermal management efficiency, and ensuring that the temperature distribution of each part inside the reaction chamber 100 is more uniform.
[0041] In some embodiments, as shown in Figure 7 The reaction chamber 100 is provided with a first passage 151 and a second passage 153 penetrating the outer cylinder 130 and the inner cylinder 110 and communicating with the second water cooling cavity 310. Based on this, the second water cooling cavity 310 is similar to the first water cooling cavity 120, and can be directly communicated with the heat supply pipeline through the first passage 151 or the second passage 153, as a heat source to supply other processes, improving energy utilization. To achieve maximum heat exchange efficiency, the passage structure is also similar to the aforementioned water gap, that is, the first passage 151 and the second passage 153 are spaced apart along the vertical direction, and the cooling water in the second water cooling cavity 310 is introduced through one of the first passage 151 and the second passage 153, and the cooling water in the second water cooling cavity 310 is discharged through the other one of the first passage 151 and the second passage 153.
[0042] To further avoid the occurrence of explosion accidents, the combustion system 10 further comprises a pressure relief pipe 400 communicating with the inner cavity of the reaction chamber 100, and a one-way pressure relief device controlled by pressure is designed in the pressure relief pipe 400 as a protection measure to relieve the high pressure caused by the high-energy deflagration in the reaction chamber 100 to the atmospheric environment. Specifically, the pressure relief pipe 400 is provided with a fourth pressure sensor, a pressure relief diaphragm and a limit switch, the fourth pressure sensor is used to obtain the instantaneous pressure fluctuation in the pressure relief pipe 400, and the limit switch is in communication connection with the fourth pressure sensor, and is used to open or close the pressure relief diaphragm to open or close the inner cavity of the reaction chamber 100 and the external environment.
[0043] In the actual scene, when the fourth pressure sensor detects that the instantaneous pressure fluctuation in the pressure relief pipe 400 is greater than the set value, it is determined that the instantaneous pressure fluctuation in the reaction chamber 100 is too large. At this time, the fourth pressure sensor transmits a signal to the limit switch, triggers the limit switch to release the limiting action on the pressure relief diaphragm, so that the pressure relief diaphragm is opened, so that the high pressure caused by the high-energy explosion is directly relieved to the atmosphere. Optionally, the pressure relief diaphragm is an aluminum diaphragm.
[0044] In addition, the combustion system 10 can also be provided with an exhaust fan, which is arranged close to the outlet 102 of the reaction chamber 100. In the actual application scene, the exhaust fan can reduce the indoor air pressure by exhausting the gas in the reaction chamber 100, thereby forming a negative pressure area. Based on the above pressure difference setting, the gas outside the reaction chamber 100 can flow into the reaction chamber 100 and react with the gas in the chamber.
[0045] In summary, the utility model provides a kind of combustion system 10, it is applied to waste gas treatment technical field, including reaction chamber 100 and the partition plate 300 in reaction chamber 100. Wherein, reaction chamber 100 is equipped with the inlet 101 and outlet 102 in the two sides of partition plate 300 respectively, and partition plate 300 cooperates with the inner wall of reaction chamber 100 to form U-shaped channel for guiding waste gas. Based on the setting of U-shaped channel, waste gas from inlet 101 is flowed around after partition plate 300 and then discharged from outlet 102. In this process, the circuitous airflow path increases the residence time of waste gas in reaction chamber 100, so that the reaction is more sufficient, and the waste gas treatment efficiency is higher. On the basis, reaction chamber 100 is also provided with first air inlet 103 close to inlet 101 and second air inlet 104 close to outlet 102, i.e. reaction chamber 100 is also provided with first air inlet 103 and second air inlet 104 on the flow path of waste gas and respectively on the two sides of partition plate 300. It should be noted that first air inlet 103 and second air inlet 104 are used to introduce compressed air to react with waste gas in sequence, realize staged combustion, ensure that the pressure in reaction chamber 100 is always in stable state, and waste gas can be stably combusted and treated.
[0046] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model.
Claims
1. A combustion system characterized by, The application relates to a reaction chamber (100) and a partition plate (300) arranged in the reaction chamber (100); wherein the reaction chamber (100) is provided with an inlet (101) and an outlet (102) arranged on the two sides of the partition plate (300) respectively, and is further provided with a first air supplementing port (103) close to the inlet (101) and a second air supplementing port (104) close to the outlet (102), the first air supplementing port (103) and the second air supplementing port (104) are used for introducing compressed air; the partition plate (300) cooperates with the inner wall of the reaction chamber (100) to form a U-shaped channel for guiding exhaust gas.
2. The combustion system of claim 1, wherein, The bottom wall of the reaction chamber (100) is provided with the inlet (101) and the outlet (102), and the top wall of the reaction chamber (100) is spaced from the partition plate (300), and the reaction chamber (100) is provided with a third air supplementing port (105) corresponding to the spacing, and the third air supplementing port (105) is used for introducing the compressed air.
3. The combustion system of claim 2, wherein, The number of the third air supplementing ports (105) is multiple, and the multiple third air supplementing ports (105) are arranged along the circumference of the reaction chamber (100) at intervals.
4. The combustion system of claim 2, wherein, From the inlet (101) to the outlet (102), the reaction chamber (100) comprises a first combustion area (210) on the side of the inlet (101), a third combustion area (250) at least partially arranged at the spacing, and a second combustion area (230) on the side of the outlet (102); the reaction chamber (100) is further provided with a first pressure sensor arranged at the first combustion area (210), a second pressure sensor arranged at the second combustion area (230), and a third pressure sensor arranged at the third combustion area (250).
5. The combustion system of claim 1, wherein, The number of the first air supplementing ports (103) is multiple, and the multiple first air supplementing ports (103) are arranged along the circumference of the reaction chamber (100) at intervals.
6. The combustion system of any one of claims 1 to 5, wherein, The reaction chamber (100) comprises an inner cylinder (110) and an outer cylinder (130), the inner cavity of the inner cylinder (110) is a combustion cavity, and a first water cooling cavity (120) is formed between the outer wall of the inner cylinder (110) and the inner wall of the outer cylinder (130); the outer cylinder (130) is provided with a first water port (131) and a second water port (133) arranged along the vertical direction at intervals; cooling water is introduced into the first water cooling cavity (120) through one of the first water port (131) and the second water port (133), and the cooling water in the first water cooling cavity (120) is discharged through the other of the first water port (131) and the second water port (133).
7. The combustion system of claim 6, wherein The partition plate (300) is a hollow structure, and the inner cavity of the partition plate (300) is a second water cooling cavity (310).
8. The combustion system of claim 7, wherein, The connecting part of the inner cylinder (110) and the partition plate (300) is provided with a third water gap (111) and a fourth water gap (113) in the vertical direction, and the second water cooling cavity (310) is communicated with the first water cooling cavity (120) through the third water gap (111) and the fourth water gap (113).
9. The combustion system of claim 7, wherein, The reaction chamber (100) is provided with a first channel (151) and a second channel (153) penetrating through the outer cylinder (130) and the inner cylinder (110) and communicated with the second water cooling cavity (310), the first channel (151) and the second channel (153) are arranged in the vertical direction, cooling water is introduced into the second water cooling cavity (310) through one of the first channel (151) and the second channel (153), and cooling water in the second water cooling cavity (310) is discharged through the other of the first channel (151) and the second channel (153).
10. The combustion system of any one of claims 1 to 5, wherein, The combustion system (10) further comprises a pressure relief pipe (400) communicated with the inner cavity of the reaction chamber (100), the pressure relief pipe (400) is provided with a fourth pressure sensor, a pressure relief diaphragm and a limit switch, the fourth pressure sensor is used to obtain the pressure fluctuation in the pressure relief pipe (400), and the limit switch is communicated with the fourth pressure sensor and used to open or close the pressure relief diaphragm to turn on or off the inner cavity of the reaction chamber (100) and the external environment.