Exhaust gas combustion device

Abstract

The utility model relates to the technical field of waste gas treatment, and provides a waste gas combustion device which comprises a combustion chamber, a first driving assembly, a wind indicator and an angle sensor. The combustion chamber is arranged in a rotatable mode and provided with an inner cavity, an exhaust port and an air inlet, the exhaust port and the air inlet are communicated with the inner cavity, the exhaust port is formed in the side wall of the combustion chamber, and the air inlet is used for receiving waste gas. The first driving assembly is in transmission connection with the combustion chamber to drive the combustion chamber to rotate around the vertical axis. The wind indicator is used for indicating the wind direction of the environment where the combustion chamber is located. The angle sensor is used for detecting the rotation angle of the wind indicator. Wherein the first driving assembly is connected with the angle sensor, and the first driving assembly is used for controlling the combustion chamber to rotate according to information fed back by the angle sensor. According to the waste gas combustion device, the change angle of the wind direction is detected through the wind indicator and the angle sensor, so that the first driving assembly can drive the combustion chamber to rotate according to the change of the wind direction, and the exhaust port is always located on the leeward side.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas combustion device. Background Art

[0002] The milk production process produces a certain amount of waste gas, which typically contains methane, carbon dioxide, ammonia, and other components. This not only pollutes the environment but also affects the quality of life of surrounding residents. Currently, the primary method for treating waste gas is to transport it to a combustion chamber for incineration before discharging it. In related technologies, the exhaust port of the combustion chamber is typically located at the top of the chamber. When the wind direction changes or the wind is slightly stronger, wind can easily flow into the combustion chamber through the exhaust port, extinguishing the flames within the combustion chamber and affecting the effectiveness of waste gas treatment. Utility Model Content

[0003] The utility model provides a waste gas combustion device, which is used to solve the defects in the prior art that the exhaust port of the combustion chamber is easily inlet with wind, resulting in flame extinguishment and poor waste gas treatment effect.

[0004] The utility model provides a waste gas combustion device, comprising:

[0005] a combustion chamber configured to be rotatable, the combustion chamber having an inner cavity and an exhaust port and an air inlet communicated with the inner cavity, the exhaust port being arranged on a side wall of the combustion chamber, and the air inlet being used to receive exhaust gas;

[0006] a first drive assembly, drivingly connected to the combustion chamber to drive the combustion chamber to rotate about a vertical axis;

[0007] A wind vane and an angle sensor, wherein the wind vane is used to indicate the wind direction of the environment in which the combustion chamber is located, and the angle sensor is used to detect the rotation angle of the wind vane;

[0008] The first drive assembly is connected to the angle sensor, and is used to control the rotation of the combustion chamber according to information fed back by the angle sensor so that the exhaust port is on the leeward side.

[0009] According to the waste gas combustion device of the present invention, it also includes a protective frame, an installation area is formed on the inner side of the protective frame, the combustion chamber is rotatably provided on the protective frame and is located in the installation area; the wind vane is rotatably provided on the protective frame.

[0010] According to the exhaust gas combustion device of the present invention, the exhaust gas combustion device further includes an air intake pipe, wherein the air intake pipe includes a first pipe section and a second pipe section that are interconnected;

[0011] The air inlet is arranged at the bottom of the combustion chamber and is arranged at a position corresponding to the vertical axis; the top end of the first pipe section is connected to the air inlet, and the bottom end of the first pipe section is rotatably inserted into one end of the second pipe section, and the other end of the second pipe section is connected to the protective frame; the second pipe section is used to allow exhaust gas to pass through.

[0012] According to the exhaust gas combustion device of the present utility model, the first driving assembly includes a first driving member, a gear set and a first gear;

[0013] The first driving member is installed on the second pipe section, the first gear is sleeved on the first pipe section, and the first driving member is connected to the first gear of the gear set;

[0014] The first driving member is used to drive the gear set to drive the first gear to rotate, and the first gear is used to drive the first pipe section to drive the combustion chamber to rotate.

[0015] According to the waste gas combustion device of the present invention, a connecting shaft is provided on the top of the combustion chamber, and the connecting shaft and the protective frame are rotatably connected.

[0016] According to the waste gas combustion device of the present utility model, it also includes a second drive assembly and a rainproof door assembly;

[0017] The second drive assembly is disposed in the combustion chamber, the second drive assembly is in transmission connection with the rainproof door assembly, and the rainproof door assembly is movably disposed in the combustion chamber;

[0018] The second driving assembly is used to drive the rainproof door assembly to move so as to close or open the exhaust port through the rainproof door assembly.

[0019] According to the exhaust gas combustion device of the present invention, it further includes a humidity sensor, which is arranged outside the combustion chamber and is communicatively connected to the second drive assembly;

[0020] The humidity sensor is used to detect the humidity outside the combustion chamber, and the second driving assembly is used to control the movement state of the rainproof door assembly according to the humidity feedback from the humidity sensor.

[0021] According to the exhaust gas combustion device of the present utility model, the second drive assembly includes a second drive member and a second gear;

[0022] The second driving member is disposed in the combustion chamber, the second driving member is in transmission connection with the second gear, and the second gear is rotatably disposed in the combustion chamber;

[0023] The rainproof door assembly includes an adapter frame and a door body, the second gear is connected to the door body through the adapter frame, and the door body is used to close the exhaust port.

[0024] According to the exhaust gas combustion device of the present invention, the combustion chamber is cylindrical, and the second gear is rotatably arranged in the combustion chamber around the vertical axis;

[0025] The door body is in an arc shape, and the second gear is used to control the door body to move around the vertical axis along the circumferential direction of the combustion chamber.

[0026] According to the waste gas combustion device of the present invention, the door body is provided with air holes.

[0027] The waste gas combustion device of the present invention has a combustion chamber with an inner cavity and an exhaust port and an air inlet connected to the inner cavity, so that waste gas can be introduced and discharged after being burned; at the same time, the exhaust port of the combustion chamber is located on the side wall, and the combustion chamber can rotate around the vertical axis under the drive of the first drive component to adjust the direction of the exhaust port; the change angle of wind direction is detected by the wind vane and the angle sensor, and the relevant information is sent to the first drive component, so that the first drive component can drive the combustion chamber to rotate according to the change of wind direction, so that the exhaust port is always on the leeward side, avoiding wind from entering from the exhaust port and affecting the combustion of waste gas in the combustion chamber, effectively solving the defect in the prior art that the exhaust port of the combustion chamber is easy to let in wind, causing the flame to be extinguished and the waste gas treatment effect to be poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is one of the schematic diagrams of the exhaust gas combustion device provided in the embodiment of the present utility model.

[0030] Figure 2 This is one of the schematic diagrams of the exhaust gas combustion device provided in the embodiment of the present utility model.

[0031] Reference numerals:

[0032] 1. Waste gas combustion device;

[0033] 11. Combustion chamber; 111. Exhaust port; 112. Air inlet; 113. Connecting shaft;

[0034] 12. First drive assembly; 121. First drive member; 122. Gear set; 123. First gear;

[0035] 13. Wind vane; 14. Angle sensor;

[0036] 15. Protective frame; 151. Installation area;

[0037] 16. Inlet pipe; 161. First pipe section; 162. Second pipe section;

[0038] 17. Second drive assembly; 171. Second drive member; 172. Second gear;

[0039] 18. Rainproof door assembly; 181. Adapter frame; 182. Door body;

[0040] 19. Humidity sensor. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] The following combination Figure 1-Figure 2 The utility model is described as an exhaust gas combustion device.

[0043] like Figure 1 As shown, the utility model provides an exhaust gas combustion device 1, comprising: a combustion chamber 11, a first drive assembly 12, a wind vane 13 and an angle sensor 14. The combustion chamber 11 is configured to be rotatable, and the combustion chamber 11 has an inner cavity and an exhaust port 111 and an air inlet 112 connected to the inner cavity. The exhaust port 111 is arranged on the side wall of the combustion chamber 11, and the air inlet 112 is used to receive exhaust gas. The first drive assembly 12 is transmission-connected to the combustion chamber 11 to drive the combustion chamber 11 to rotate around a vertical axis. The wind vane 13 is used to indicate the wind direction of the environment in which the combustion chamber 11 is located, and the angle sensor 14 is used to detect the rotation angle of the wind vane 13. Among them, the first drive assembly 12 is connected to the angle sensor 14, and the first drive assembly 12 is used to control the rotation of the combustion chamber 11 according to the information fed back by the angle sensor 14, so that the exhaust port 111 is on the leeward side.

[0044] In this embodiment, the combustion chamber 11 has an inner cavity and is provided with an exhaust port 111 and an air inlet 112. The air inlet 112 is used to connect with the exhaust system of the production equipment that generates exhaust gas so as to pass the discharged exhaust gas into the inner cavity. It can be understood that the inner cavity of the combustion chamber 11 is provided with a burner to ignite the exhaust gas, and the exhaust gas is discharged through the exhaust port 111 after being burned.

[0045] By arranging the exhaust port 111 on the side wall of the combustion chamber 11, arranging the combustion chamber 11 rotatably, and providing a first drive assembly 12 for driving the combustion chamber 11 to rotate, the combustion chamber 11 can be driven to rotate by the first drive assembly 12 to adjust the direction of the exhaust port 111. At the same time, by providing a wind vane 13 and an angle sensor 14, the wind vane 13 can rotate with changes in wind direction. The angle sensor 14 can detect the rotation angle of the wind vane 13 and send the rotation angle of the wind vane 13 to the first drive assembly 12. The first drive assembly 12 can drive the combustion chamber 11 to rotate according to the rotation angle of the wind vane 13 so that the exhaust port 111 is always on the leeward side. It can be understood that the leeward side is the side of the combustion chamber 11 opposite to the incoming wind direction. The exhaust port 111 being on the leeward side can prevent wind from entering the exhaust port 111 and affecting the combustion of exhaust gas in the combustion chamber 11.

[0046] The waste gas combustion device 1 of the present invention has a combustion chamber 11 with an inner cavity and an exhaust port 111 and an air inlet 112 connected to the inner cavity, so that waste gas can be introduced and discharged after being burned; at the same time, the exhaust port 111 of the combustion chamber 11 is located on the side wall, and the combustion chamber 11 can rotate around the vertical axis under the drive of the first drive component 12 to adjust the direction of the exhaust port 111; the wind direction change angle is detected by the wind vane 13 and the angle sensor 14, and the relevant information is sent to the first drive component 12, so that the first drive component 12 can drive the combustion chamber 11 to rotate according to the change of wind direction, so that the exhaust port 111 is always on the leeward side, avoiding wind from entering from the exhaust port 111 and affecting the combustion of waste gas in the combustion chamber 11, effectively solving the defect in the prior art that the exhaust port of the combustion chamber is easy to let in wind, causing the flame to be extinguished and the waste gas treatment effect to be poor.

[0047] Optionally, the angle sensor 14 may be an encoder, which is mounted on the rotating shaft of the wind vane 13 to detect the rotation angle of the wind vane 13 and transmit the corresponding rotation angle information to the first drive assembly 12. It is understood that when the combustion chamber 11 and the wind vane 13 are both in their initial positions, the exhaust port 111 faces the leeward side of the wind vane 13. When the angle sensor 14 detects that the wind vane 13 has rotated, it transmits the corresponding rotation angle to the first drive assembly 12, which drives the combustion chamber 11 to rotate by the same angle, thereby causing the exhaust port 111 to rotate with the wind vane 13 and always be located on the leeward side.

[0048] Optionally, the angle sensor 14 may include a magnet and a Hall effect sensor, with one of the magnet and the Hall effect sensor positioned on the rotation axis of the wind vane 13 and the other fixed. By properly positioning the magnet and the Hall effect sensor, the distance between them remains within the detection range of the Hall effect sensor during the rotation of the wind vane 13. As a result, when the wind vane 13 rotates, the Hall effect sensor can calculate the rotation angle of the wind vane 13 based on the change in the magnetic field.

[0049] In some embodiments, as Figure 1 As shown, the exhaust gas combustion device 1 further includes a protection frame 15, an installation area 151 is formed inside the protection frame 15, and the combustion chamber 11 is rotatably mounted on the protection frame 15 and located within the installation area 151. The wind vane 13 is rotatably mounted on the protection frame 15.

[0050] In this embodiment, by providing a protective frame 15 having an inner mounting area 151 and placing the combustion chamber 11 on the protective frame 15 and within the mounting area 151, the protective frame 15 can support and protect the combustion chamber 11. Furthermore, the protective frame 15 can also serve as a supporting structure for the wind vane 13.

[0051] In some embodiments, as Figure 1 As shown, the exhaust gas combustion device 1 also includes an intake pipe 16, which includes a first pipe section 161 and a second pipe section 162 that are interconnected. The air inlet 112 is disposed at the bottom of the combustion chamber 11 and is arranged at a position corresponding to the vertical axis. The top end of the first pipe section 161 is connected to the air inlet 112, and the bottom end of the first pipe section 161 is rotatably inserted into one end of the second pipe section 162. The other end of the second pipe section 162 is connected to the protective frame 15. The second pipe section 162 is used to introduce exhaust gas.

[0052] In this embodiment, second pipe section 162 is connected to the exhaust system of production equipment generating exhaust gas to allow the exhaust gas to enter, and is connected to protective frame 15 to form a fixed structure. First pipe section 161 is rotatably inserted into second pipe section 162 and communicates with air inlet 112, which is located at a position corresponding to the vertical axis. When combustion chamber 11 rotates, first pipe section 161 can rotate with combustion chamber 11 without affecting the entry of exhaust gas. The structure is simple and convenient to use.

[0053] Optionally, in the above embodiment, the protective frame 15 can be installed on the ground or connected to other supporting structures to provide support for the entire exhaust gas combustion device 1.

[0054] Optionally, in the above embodiment, the protective frame 15 is connected to the second pipe segment 162, which is connected to the fixed structure, and the second pipe segment 162 supports other components of the exhaust gas combustion device 1. An adapter is provided between the second pipe segment 162 and the first pipe segment 161. Slots are provided on both sides of the adapter. The bottom end of the first pipe segment 161 is rotatably inserted into the slot at the top of the adapter, and the top end of the second pipe segment 162 is inserted into the slot at the bottom of the adapter. An air intake passage is formed inside the adapter, connecting the second pipe segment 162 and the first pipe segment 161, so that the second pipe segment 162 can support the first pipe segment 161.

[0055] In some embodiments, as Figure 1 As shown, the first drive assembly 12 includes a first drive member 121, a gear set 122, and a first gear 123. The first drive member 121 is mounted on the second pipe section 162, and the first gear 123 is mounted on the first pipe section 161. The first drive member 121 is connected to the first gear 123 through the gear set 122. The first drive member 121 is used to drive the gear set 122 to rotate the first gear 123, and the first gear 123 is used to drive the first pipe section 161 to rotate the combustion chamber 11.

[0056] In this embodiment, the first driving member 121 is mounted on the second pipe section 162 to maintain a fixed position. The output end of the first driving member 121 is connected to the gear set 122 in a transmission manner, and the gear set 122 is meshed with the first gear 123. It is understood that the gear set 122 may include a single gear or multiple meshing gears, and the number and size of the gears can be set according to the relative position of the first driving member 121 and the first gear 123. The first driving member 121 drives a gear in the gear set 122 to rotate. The gear set 122 drives the first gear 123 to rotate through the gear meshing transmission. The first gear 123 drives the first pipe section 161 to rotate, thereby driving the combustion chamber 11 to rotate to adjust the direction of the exhaust port 111. The structure is simple and the performance is good.

[0057] In some embodiments, as Figure 1 As shown, a connecting shaft 113 is provided on the top of the combustion chamber 11 , and the connecting shaft 113 and the protective frame 15 are rotatably connected.

[0058] In this embodiment, by disposing a connecting shaft 113 connected to the protective frame 15 at the top of the combustion chamber 11, the connecting shaft 113 can rotate relative to the protective frame 15 without affecting the rotation of the combustion chamber 11, while also providing a certain degree of support and positioning for the combustion chamber 11. Specifically, the protective frame 15 and the connecting shaft 113, as well as the protective frame 15 and the second pipe section 162, can cooperate with each other to respectively support and position the top and bottom of the combustion chamber 11, thereby preventing the combustion chamber 11 from tilting in the horizontal direction.

[0059] In some embodiments, as Figure 1 and Figure 2 As shown, the exhaust gas combustion device 1 further includes a second drive assembly 17 and a rainproof door assembly 18. The second drive assembly 17 is disposed in the combustion chamber 11 and is in transmission connection with the rainproof door assembly 18. The rainproof door assembly 18 is movably disposed in the combustion chamber 11. The second drive assembly 17 is used to drive the rainproof door assembly 18 to move, thereby closing or opening the exhaust port 111 through the rainproof door assembly 18.

[0060] In this embodiment, a second drive assembly 17 and a movable rainproof door assembly 18 are provided on the combustion chamber 11. The second drive assembly 17 and the rainproof door assembly 18 are transmission-connected to drive the rainproof door assembly 18 to move on the combustion chamber 11. When it rains, the second drive assembly 17 can drive the rainproof door assembly 18 to close the exhaust port 111 to prevent water from entering the combustion chamber 11; when it is not raining, the second drive assembly 17 can drive the rainproof door assembly 18 to open the exhaust port 111 to discharge exhaust gas.

[0061] Specifically, in some embodiments, the exhaust gas combustion device 1 further includes a humidity sensor 19, which is disposed outside the combustion chamber 11 and is communicatively connected to the second drive assembly 17. The humidity sensor 19 is configured to detect the humidity outside the combustion chamber 11, and the second drive assembly 17 is configured to control the movement of the rainproof door assembly 18 based on the humidity feedback from the humidity sensor 19.

[0062] In this embodiment, a humidity sensor 19 is provided on the outside of the combustion chamber 11 to detect the humidity of the environment surrounding the combustion chamber 11. This allows the second drive assembly 17 to control the rain door assembly 18 to open and close the exhaust port 111 based on the humidity, thereby achieving automatic control of the rain door assembly 18 without the need for manual operation. For example, when the humidity is higher than a set value, the second drive assembly 17 drives the rain door assembly 18 to move and close the exhaust port 111, preventing rainwater or high-humidity air from entering the interior of the combustion chamber 11 and affecting the combustion of the exhaust gas in the combustion chamber 11. When the humidity is lower than the set value, the second drive assembly 17 drives the rain door assembly 18 to open the exhaust port 111 to discharge the incinerated exhaust gas.

[0063] Specifically, in some embodiments, Figure 1 and Figure 2 As shown, the second drive assembly 17 includes a second drive member 171 and a second gear 172. The second drive member 171 is disposed in the combustion chamber 11 and is in driving connection with the second gear 172. The second gear 172 is rotatably disposed in the combustion chamber 11. The rainproof door assembly 18 includes an adapter frame 181 and a door body 182. The second gear 172 is connected to the door body 182 via the adapter frame 181. The door body 182 is used to seal the exhaust port 111.

[0064] In this embodiment, a second driving member 171 and a rotatable second gear 172 are provided on the combustion chamber 11, the second driving member 171 is connected to the second gear 172 in transmission, and the second gear 172 is connected to the door body 182 through the adapter frame 181. The second driving member 171 drives the second gear 172 to rotate to drive the door body 182 to rotate through the adapter frame 181, so as to adjust the position of the door body 182 to open and close the exhaust port 111; and when the combustion chamber 11 rotates, the second driving member 171 and the second gear 172 can keep the relative positions of the second driving assembly 17 and the rainproof door assembly 18 and the combustion chamber 11 unchanged, without affecting the opening and closing state of the exhaust port 111, and the structure is simple, convenient and practical.

[0065] It is understandable that the second gear 172 can be connected to the second driving member 171 through a transmission structure such as a gear or a rack, or can be directly mounted on the output shaft of the second driving member 171.

[0066] In some embodiments, as Figure 1 and Figure 2 As shown, a connecting shaft 113 is provided at the top of the combustion chamber 11, the connecting shaft 113 and the protective frame 15 are rotatably connected, and the second gear 172 is rotatably sleeved on the connecting shaft 113; the second driving member 171 is provided on one side of the connecting shaft 113, and the second driving member 171 is connected to the second gear 172 through a transmission structure such as a gear and a rack.

[0067] In some embodiments, as Figure 1 and Figure 2 As shown, the combustion chamber 11 is cylindrical, and the second gear 172 is rotatably provided on the combustion chamber 11 around a vertical axis. The door body 182 is arc-shaped, and the second gear 172 is used to control the door body 182 to move circumferentially along the vertical axis of the combustion chamber 11.

[0068] In this embodiment, the combustion chamber 11 is set to a cylindrical shape so that the rotation axis of the second gear 172 coincides with the axis of the combustion chamber 11, so that the second gear 172 can drive the door body 182 to move along the circumferential direction of the combustion chamber 11. The door body 182 is in an arc shape, so that the door body 182 can move close to the outer wall of the combustion chamber 11 to close or open the exhaust port 111, making the entire structure more compact.

[0069] In some embodiments, the door body 182 is provided with air holes so that the exhaust gas after incineration can still be discharged when the door body 182 closes the exhaust port 111.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A waste gas combustion device, characterized in that: include: a combustion chamber configured to be rotatable, the combustion chamber having an inner cavity and an exhaust port and an air inlet communicated with the inner cavity, the exhaust port being arranged on a side wall of the combustion chamber, and the air inlet being used to receive exhaust gas; a first drive assembly, drivingly connected to the combustion chamber to drive the combustion chamber to rotate about a vertical axis; A wind vane and an angle sensor, wherein the wind vane is used to indicate the wind direction of the environment in which the combustion chamber is located, and the angle sensor is used to detect the rotation angle of the wind vane; The first drive assembly is connected to the angle sensor, and is used to control the rotation of the combustion chamber according to information fed back by the angle sensor so that the exhaust port is on the leeward side.

2. The exhaust gas combustion device according to claim 1, characterized in that: It also includes a protective frame, an installation area is formed on the inner side of the protective frame, the combustion chamber is rotatably arranged on the protective frame and is located in the installation area; the wind vane is rotatably arranged on the protective frame.

3. The exhaust gas combustion device according to claim 2, characterized in that: Also included is an air intake pipe, the air intake pipe including a first pipe section and a second pipe section that are interconnected; The air inlet is arranged at the bottom of the combustion chamber and is arranged at a position corresponding to the vertical axis; the top end of the first pipe section is connected to the air inlet, and the bottom end of the first pipe section is rotatably inserted into one end of the second pipe section, and the other end of the second pipe section is connected to the protective frame; the second pipe section is used to allow exhaust gas to pass through.

4. The exhaust gas combustion device according to claim 3, characterized in that: The first drive assembly includes a first drive member, a gear set and a first gear; The first driving member is installed on the second pipe section, the first gear is sleeved on the first pipe section, and the first driving member is connected to the first gear of the gear set; The first driving member is used to drive the gear set to drive the first gear to rotate, and the first gear is used to drive the first pipe section to drive the combustion chamber to rotate.

5. The exhaust gas combustion device according to claim 3, characterized in that: A connecting shaft is provided on the top of the combustion chamber, and the connecting shaft and the protective frame are rotatably connected.

6. The exhaust gas combustion device according to claim 1, characterized in that: Also included is a second drive assembly and a rain door assembly; The second drive assembly is disposed in the combustion chamber, the second drive assembly is in transmission connection with the rainproof door assembly, and the rainproof door assembly is movably disposed in the combustion chamber; The second driving assembly is used to drive the rainproof door assembly to move so as to close or open the exhaust port through the rainproof door assembly.

7. The exhaust gas combustion device according to claim 6, characterized in that: Also included is a humidity sensor, the humidity sensor is disposed outside the combustion chamber, and the humidity sensor is communicatively connected to the second drive assembly; The humidity sensor is used to detect the humidity outside the combustion chamber, and the second driving assembly is used to control the movement state of the rainproof door assembly according to the humidity feedback from the humidity sensor.

8. The exhaust gas combustion device according to claim 6, characterized in that: The second drive assembly includes a second drive member and a second gear; The second driving member is disposed in the combustion chamber, the second driving member is in transmission connection with the second gear, and the second gear is rotatably disposed in the combustion chamber; The rainproof door assembly includes an adapter frame and a door body, the second gear is connected to the door body through the adapter frame, and the door body is used to close the exhaust port.

9. The exhaust gas combustion device according to claim 8, characterized in that: The combustion chamber is cylindrical, and the second gear is rotatably arranged in the combustion chamber around the vertical axis; The door body is in an arc shape, and the second gear is used to control the door body to move around the vertical axis along the circumferential direction of the combustion chamber.

10. The exhaust gas combustion device according to claim 8 or 9, characterized in that: The door body is provided with air holes.

Images