Combustion engine

Abstract

The application relates to the field of heating equipment, in particular to a combustion machine which comprises a machine body, an igniter, a detection assembly and a fuel supply device, a combustion cavity is formed on the surface of the machine body, a plurality of combustion-supporting holes are formed on the inner wall of the combustion cavity at intervals, an air inlet hole for mounting an external pipeline is formed on the surface of the machine body, the fuel supply device is connected to the inner wall of the machine body, a plurality of combustion holes are formed on the inner wall of the combustion cavity towards the air outlet end of the fuel supply device, the igniter is connected to the inner wall of the combustion cavity, the igniter can ignite natural gas in the combustion cavity, the detection assembly is connected to the inner wall of the combustion cavity, the detection assembly can detect the temperature in the combustion cavity and control the on-off of the fuel supply device. In the application, the detection assembly is arranged, the fuel supply device is controlled to be closed, the discharge of natural gas is stopped, the combustion condition of natural gas in the combustion cavity is detected by the staff in time, the situation that the igniter fails to ignite and natural gas continuously discharges is avoided, the leakage of natural gas is avoided, and therefore the danger in the use of the combustion machine is reduced.

Description

Technical Field

[0001] This application relates to the field of heating equipment, and more particularly to a burner. Background Technology

[0002] A burner converts chemical energy into heat energy by controlling the mixing ratio, flow rate, and pressure of fuel and air to form a combustible mixture in the combustion chamber and initiating a combustion reaction through an ignition device.

[0003] When the oxygen content of the combustion-supporting agent in the air is low, the igniter of the burner fails to ignite the fuel natural gas, and natural gas continues to be discharged from the burner. This increases the concentration of natural gas in the workplace and reduces the oxygen content in the air, leading to asphyxiation and increasing the danger of using the burner. Utility Model Content

[0004] In order to improve the problem of the danger level of using burners, this application provides a burner.

[0005] This application provides a burner that adopts the following technical solution: A burner includes a body, an igniter, a detection component, and a burner. The body has a combustion chamber for fuel combustion on its surface. Multiple combustion-supporting holes are spaced apart on the inner wall of the combustion chamber, all of which connect to the inner cavity of the body. An air inlet for installing an external pipe is also provided on the body surface, connecting to the inner cavity. Air enters the combustion chamber through the external pipe, passing sequentially through the air inlet, the inner cavity, and the combustion-supporting holes. The burner is connected to the inner wall of the body. Multiple combustion holes are spaced apart on the inner wall of the combustion chamber facing the burner's outlet end. Natural gas is supplied to the combustion chamber through these combustion holes. The igniter is connected to the inner wall of the combustion chamber and ignites the natural gas within it. The detection component is connected to the inner wall of the combustion chamber and detects the temperature within the combustion chamber, controlling the on / off state of the burner.

[0006] By adopting the above technical solution, air enters the internal cavity of the machine through an external pipe, passing sequentially through the air inlet, the internal cavity of the machine, and the combustion port. The burner drives natural gas into the combustion chamber through the combustion port. The natural gas mixes with the air to form a combustible mixture. The igniter then ignites the natural gas in the combustion chamber, ensuring that chemical energy is stably converted into heat energy. At the same time, the detection component monitors the temperature inside the combustion chamber in real time and controls the on / off state of the burner. When the detection component detects that the temperature inside the combustion chamber is lower than a preset value, it controls the burner to shut down, stopping the discharge of natural gas. Operators can promptly monitor the combustion of natural gas in the combustion chamber to prevent the igniter from failing to ignite and the continuous discharge of natural gas, thus preventing natural gas leakage and reducing the danger of using the burner.

[0007] Optionally, the detection component includes a controller and multiple temperature sensors. Multiple positioning cavities for the temperature sensors to pass through are formed on the surface of the body. These positioning cavities are connected to the internal cavity of the body. Multiple clamping cavities for the temperature sensors to pass through are spaced apart on the inner wall of the combustion chamber. These clamping cavities are also connected to the internal cavity of the body, and each clamping cavity corresponds to one of the positioning cavities. When the detection end of the temperature sensor passes through the positioning cavity, the internal cavity of the body, and the clamping cavities and faces the combustion chamber, the temperature sensor can detect the temperature inside the combustion chamber. The burner and the multiple temperature sensors are all electrically connected to the controller. The temperature sensors send the detected values ​​to the controller, which compares the detected values ​​with preset values ​​and controls the on / off state of the burner.

[0008] By adopting the above technical solution, the clamping cavity and the positioning cavity correspond one-to-one. The detection end of the temperature sensor passes through the positioning cavity, the internal cavity of the machine body, and the clamping cavity, and faces the combustion cavity. One end of the temperature sensor along its length abuts against the inner wall of the positioning cavity to form a positioning, and the other end of the temperature sensor along its length abuts against the inner wall of the clamping cavity to form a positioning, making it less likely for the temperature sensor to shift on the machine body, thereby improving the installation stability of the temperature sensor on the machine body. At the same time, the setting of multiple temperature sensors enables temperature detection at various locations within the combustion cavity, thereby improving the accuracy of temperature detection within the combustion cavity. The temperature sensor sends the detected temperature to the controller, which compares the detected temperature with a preset value. When the detected temperature is lower than the preset value, the controller controls the burner to close and stop supplying natural gas. When the detected temperature is higher than the preset value, the controller controls the burner to open and stably supply natural gas, achieving directional supply of natural gas.

[0009] Optionally, the burner includes a vent pipe and a vent box. The vent box is connected to the inner wall of the machine body. The surface of the vent box facing the combustion hole has multiple vent holes spaced apart. The vent holes connect the combustion hole and the inner cavity of the vent box. The surface of the machine body has a vent cavity through which the vent pipe passes. The vent cavity connects to the inner cavity of the machine body. One end of the vent pipe passes through the vent cavity, is embedded in the inner cavity of the machine body, and is connected to the surface of the vent box. The other end of the vent pipe is connected to a gas storage tank. The vent pipe is electrically connected to a controller. The controller can control the opening and closing of the vent pipe. Natural gas in the gas storage tank enters the inner cavity of the vent box through the vent pipe and then sequentially passes through the vent holes and the combustion hole before entering the combustion chamber.

[0010] By adopting the above technical solution, one end of the vent pipe in the length direction abuts against the inner wall of the vent chamber to form a positioning, and the other end of the vent pipe in the length direction is connected to the inner wall of the machine body to fix the vent pipe. At the same time, the natural gas in the gas storage tank passes through the vent pipe, the inner cavity of the vent box and the vent hole in sequence and enters the combustion chamber from the combustion hole. The inner cavity of the vent box provides space for the flow of natural gas, thereby ensuring the stable discharge of natural gas from multiple combustion holes and realizing the uniform distribution and combustion of natural gas in the combustion chamber.

[0011] Optionally, the igniter includes a spark plug and an ignition pipe. One end of the ignition pipe is connected to a gas storage tank, and the other end of the ignition pipe is threaded to the end of the spark plug. The inner wall of the combustion chamber has an installation hole for the end of the spark plug to pass through. The inner wall of the installation hole abuts against the outer circumferential surface of the spark plug to form a positioning. Natural gas in the gas storage tank enters the spark plug through the ignition pipe, and the spark plug ignites the natural gas in the combustion chamber.

[0012] By adopting the above technical solution, the ignition pipe is threaded to the end of the spark plug, realizing a detachable connection between the ignition pipe and the spark plug, which facilitates the user's replacement of the spark plug; at the same time, the natural gas in the gas tank enters the spark plug through the ignition pipe, and the spark plug ignites the natural gas in the combustion chamber. The inner wall of the mounting hole abuts against the outer circumference of the spark plug to form a positioning, making the spark plug less prone to displacement, thereby improving the installation stability of the spark plug on the inner wall of the combustion chamber.

[0013] Optionally, the surface of the body is provided with an ignition chamber for the ignition pipe to pass through. The ignition chamber is connected to the internal cavity of the body, and the inner wall of the ignition chamber is pressed against the outer circumferential surface of the ignition pipe to form a positioning.

[0014] By adopting the above technical solution, one end of the ignition pipe is connected to the end of the spark plug, and the other end of the ignition pipe passes through the ignition chamber and is connected to the gas tank. The inner wall of the ignition chamber is pressed against the outer circumference of the ignition pipe to form a positioning, making the ignition pipe less prone to displacement, thereby improving the positioning stability of the ignition pipe.

[0015] Optionally, an air guide plate is connected to the inner wall of the machine body. The air guide plate is located between the ventilation box and the air inlet. The surface of the air guide plate is provided with multiple air guide holes at intervals. The air guide plate guides the air inside the machine body to enter the combustion chamber through the air guide holes from the combustion port.

[0016] By adopting the above technical solution, the air guide plate is located between the ventilation box and the air inlet. The air guide plate guides the air in the machine body to enter the combustion chamber through the air guide hole and the combustion port, thereby achieving a uniform distribution of air in the combustion chamber and further improving the stability of fuel combustion in the combustion chamber.

[0017] Optionally, the arrangement direction of the combustion holes is parallel to the width direction of the body, and the plurality of combustion-supporting holes are divided into two groups, with the two groups of combustion-supporting holes located on both sides of the combustion holes, and the arrangement direction of the plurality of combustion-supporting holes in the same group is parallel to the arrangement direction of the combustion holes.

[0018] By adopting the above technical solution, multiple combustion-supporting holes are divided into two groups and located on both sides of the combustion hole, so that air and natural gas can be fully mixed, thereby ensuring the stable combustion of natural gas in the combustion chamber.

[0019] Optionally, the inner wall of the combustion chamber with the combustion-supporting hole is provided with a guide surface, the inclination height of which decreases as the distance to the combustion hole decreases, and the guide surface guides the air flow to the combustion hole.

[0020] By adopting the above technical solution, the tilt height of the guide surface decreases as the distance to the combustion hole decreases, and the guide surface guides the air discharged from the combustion hole to the combustion hole, further ensuring the full mixing of natural gas and air, thereby ensuring the stable combustion of natural gas in the combustion chamber.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up the detection components, the burner is controlled to shut down, stopping the discharge of natural gas. Staff can promptly check the combustion status of natural gas in the combustion chamber to prevent ignition failure and continuous discharge of natural gas, thus avoiding natural gas leakage and reducing the danger to the use of the burner. 2. Controller and temperature sensor settings: The controller shuts off the gas supply to stop the gas supply. When the detected temperature is higher than the preset value, the controller shuts off the gas supply to stabilize the gas supply, thus achieving targeted gas supply. 3. The design of the vent pipe and vent box provides space for natural gas flow within the vent box, thereby ensuring the stable discharge of natural gas from multiple combustion holes and achieving uniform combustion of natural gas within the combustion chamber. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0023] Figure 2 This is a partial structural diagram of an embodiment of this application, mainly showing the air guide plate.

[0024] Figure 3 This is a cross-sectional view of an embodiment of this application.

[0025] Figure 4 yes Figure 3 The enlarged view at point A in the middle mainly shows the vent.

[0026] Explanation of reference numerals in the attached drawings: 1. Body; 11. Combustion chamber; 111. Guide surface; 12. Combustion port; 13. Air inlet; 14. Positioning chamber; 15. Clamping chamber; 16. Combustion port; 17. Vent chamber; 18. Mounting hole; 19. Ignition chamber; 2. Ignition device; 21. Spark plug; 22. Ignition pipe; 3. Detection component; 31. Temperature sensor; 4. Burner; 41. Vent pipe body; 42. Vent box body; 421. Vent hole; 5. Air guide plate; 51. Air guide hole. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a burner. (Refer to...) Figure 1 and Figure 2 The burner includes a body 1, an igniter 2, a detection component 3, and a burner 4. A combustion chamber 11 for fuel combustion is provided on one side of the body 1 in the width direction. Multiple combustion-supporting holes 12 are spaced apart on the inner wall of the combustion chamber 11. These holes are divided into two groups, located on opposite inner walls of the combustion chamber 11. The arrangement of the combustion-supporting holes 12 in the same group is parallel to the length direction of the body 1, and the holes 12 connect to the inner cavity of the body 1. An air inlet 13 for installing an external pipe is provided on one side of the body 1 in the length direction. The air inlet 13 connects to the inner cavity of the body 1, and air enters through the external pipe sequentially via the air inlet 13, the inner cavity of the body 1, and the combustion-supporting holes 12. The gas is introduced into the combustion chamber 11 to achieve a stable supply of air to the combustion chamber 11. The igniter 2, detection component 3, and burner 4 are all installed on the inner wall of the combustion chamber 11. The burner 4 is used to supply natural gas into the combustion chamber 11. The igniter 2 can ignite the natural gas in the combustion chamber 11. The detection component 3 is electrically connected to the burner 4. The detection component 3 can detect the temperature in the combustion chamber 11 in real time and control the on / off of the burner 4 to achieve directional discharge of natural gas. The staff can promptly detect the combustion status of natural gas in the combustion chamber 11 to avoid the situation where the igniter 2 fails to ignite and natural gas continues to be discharged, thus preventing natural gas leakage and reducing the danger of using the burner.

[0029] Reference Figure 1 and Figure 2 The detection component 3 includes a controller and multiple temperature sensors 31. The number of temperature sensors 31 can be one, two, or more. In this embodiment, the number of temperature sensors 31 is two. Two positioning cavities 14 are provided at intervals on the surface of the body 1 away from the combustion chamber 11 for the temperature sensors 31 to pass through. The positioning cavities 14 are connected to the inner cavity of the body 1. Two clamping cavities 15 are provided at intervals on the inner wall of the combustion chamber 11 for the temperature sensors 31 to pass through. The clamping cavities 15 are connected to the inner cavity of the body 1, and the clamping cavities 15 correspond one-to-one with the positioning cavities 14. When the detection end of the temperature sensor 31 passes through the positioning cavity 14, the inner cavity of the body 1, and the clamping cavity 15 and faces the combustion chamber 11, one end of the temperature sensor 31 in the length direction abuts against the inner wall of the positioning cavity 14 to form a positioning, and the other end of the temperature sensor 31 in the length direction abuts against the inner wall of the clamping cavity 15 to form a positioning, so that the temperature sensor 31 is not easy to shift on the inner wall of the combustion chamber 11, thereby improving the installation stability of the temperature sensor 31 on the body 1.

[0030] Reference Figure 1 and Figure 2The burner 4 and two temperature sensors 31 are electrically connected to the controller. The temperature sensors 31 can measure the temperature inside the combustion chamber 11 and send it to the controller. The controller compares the measured value with the preset value. When the measured value is less than the preset value, the controller controls the burner 4 to close and stop supplying natural gas. When the measured value is greater than the preset value, the controller controls the burner 4 to open, realizing the directional supply of natural gas. This gives the operator time to check the combustion status of natural gas in the combustion chamber 11, avoids the situation where the igniter 2 fails to ignite and natural gas continues to be discharged, avoids natural gas leakage, and thus reduces the danger of using the burner.

[0031] Reference Figure 3 and Figure 4 The burner 4 includes a vent pipe 41 and a vent box 42. The vent box 42 is fixed to the inner wall of the body 1 near the combustion chamber 11. The surface of the vent box 42 facing the combustion chamber 11 is provided with a plurality of vent holes 421 at intervals. The axis of the vent holes 421 is parallel to the length direction of the body 1. The vent holes 421 penetrate the outer wall of the vent box 42 along their own axis and connect to the inner cavity of the vent box 42. The arrangement direction of the vent holes 421 is parallel to the width direction of the body 1.

[0032] Reference Figure 3 and Figure 4 The combustion chamber 11 has multiple combustion holes 16 spaced apart on its inner wall facing the ventilation box 42. Each combustion hole 16 corresponds to a ventilation hole 421. The axis of the combustion hole 16 is parallel to the length direction of the body 1. The combustion hole 16 penetrates the inner wall of the combustion chamber 11 along its own axis and connects to the inner cavity of the body 1. Two sets of flame-retardant holes are located on either side of the combustion hole 16. A ventilation chamber 17 is formed on the surface of the body 1 away from the combustion chamber 11 for the ventilation pipe 41 to pass through. The ventilation chamber 17 connects to the inner cavity of the body 1. One end of the ventilation pipe 41 along its axis is used for installing a gas storage tank, and the other end of the ventilation pipe 41 along its axis passes through... The ventilation chamber 17 is connected to the surface of the ventilation box 42. The controller is electrically connected to the ventilation pipe 41. In this embodiment, the ventilation pipe 41 is equipped with a solenoid valve. The controller controls the opening and closing of the solenoid valve to control the opening and closing of the ventilation pipe 41. The inner wall of the ventilation chamber 17 abuts against the outer circumferential surface of the ventilation pipe 41 to form a positioning. Natural gas in the gas storage tank enters the ventilation box 42 through the ventilation pipe 41. Natural gas flows through the inner cavity of the ventilation box 42. Natural gas in the ventilation box 42 enters the combustion chamber 11 through the ventilation hole 421 from the combustion hole 16, realizing a stable supply of natural gas to the combustion chamber 11.

[0033] Reference Figure 3 and Figure 4The igniter 2 includes a spark plug 21 and an ignition pipe 22. One end of the ignition pipe 22 is connected to a gas storage tank, and the other end of the ignition pipe 22 is threaded to the end of the spark plug 21. Natural gas in the gas storage tank enters the spark plug 21 through the ignition pipe 22, and the spark plug 21 is ignited. The inner wall of the combustion chamber 11 is provided with an installation hole 18 for the end of the spark plug 21 to pass through. The installation hole 18 is located between two clamping cavities 15. The installation hole 18 is connected to the inner cavity of the machine body 1, and the inner wall of the installation hole 18 abuts against the outer peripheral surface of the spark plug 21 to form a positioning, thereby limiting the spark plug 21 on the inner wall of the combustion chamber 11.

[0034] Reference Figure 3 and Figure 4 An ignition chamber 19 is provided on the surface of the body 1 away from the combustion chamber 11 for the ignition pipe 22 to pass through. The ignition chamber 19 is connected to the inner cavity of the body 1. When the end of the spark plug 21 passes through the mounting hole 18 and the ignition pipe 22 passes through the ignition chamber 19, the inner wall of the mounting hole 18 abuts against the outer circumferential surface of the spark plug 21 to form a positioning, and the outer circumferential surface of the ignition pipe 22 abuts against the inner wall of the ignition chamber 19 to form a positioning, thereby achieving the positioning stability of the igniter 2 on the body 1. At the same time, the ignition end of the spark plug 21 faces the combustion chamber 11, and the natural gas in the gas tank enters the spark plug 21 through the ignition pipe 22. The spark plug 21 ignites the natural gas in the combustion chamber 11, thereby achieving stable combustion of the natural gas in the combustion chamber 11.

[0035] Reference Figure 1 and Figure 2 An air guide plate 5 is fixed on the inner wall of the body 1. The air guide plate 5 is located between the ventilation box 42 and the air inlet 13. Multiple air guide holes 51 are spaced apart on the surface of the air guide plate 5. The axis of the air guide holes 51 is parallel to the length direction of the body 1. The air guide holes 51 pass through both sides of the air guide plate 5 along their own axis. The surface of the air guide plate 5 can guide the air in the body 1 to enter the combustion chamber 11 evenly through the multiple combustion holes 12 through the air guide holes 51, so as to achieve complete combustion of natural gas in the combustion chamber 11.

[0036] Reference Figure 1 and Figure 2 The inner wall of the combustion chamber 11 with combustion-supporting holes 12 is provided with guide surfaces 111. The inclination height of the guide surfaces 111 decreases as the distance to the combustion holes 16 decreases. The guide surfaces 111 guide the air in the combustion-supporting holes 12 to the combustion holes 16, so that the natural gas and air can fully contact each other, further ensuring the full combustion of natural gas.

[0037] The implementation principle of a burner according to an embodiment of this application is as follows: Air enters the inner cavity of the body 1 through the air inlet 13 via an external pipe. The air guide plate 5 guides the air in the body 1 to enter the combustion chamber 11 evenly through multiple combustion holes 12 via the air guide holes 51. The guide surface 111 guides the air from the combustion holes 12 to the combustion chamber 11. At the same time, natural gas in the gas storage tank enters the inner cavity of the ventilation box 42 through the ventilation pipe 41. The inner cavity of the ventilation box 42 provides space for the flow of natural gas, allowing the natural gas in the ventilation box 42 to enter the combustion chamber 11 through multiple ventilation holes 421 via the combustion holes 16. The natural gas and air form a combustible mixture. The natural gas in the gas storage tank enters the combustion chamber 11 through the ignition pipe 22. When the spark plug 21 is inserted, it ignites the natural gas in the combustion chamber 11, achieving stable combustion of the natural gas. At the same time, the temperature sensor 31 monitors the temperature in the combustion chamber 11 in real time and sends the data to the controller. When the oxygen content in the combustion chamber 11 decreases, causing the natural gas to stop burning, the temperature in the combustion chamber 11 decreases. The controller detects that the measured value is lower than the preset value and controls the vent pipe 41 to close, stopping the discharge of natural gas. This gives the operator time to monitor the combustion status of the natural gas in the combustion chamber 11, preventing the igniter 2 from failing to ignite and causing the natural gas to continue to be discharged, thus preventing natural gas leakage and reducing the danger of using the burner.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A burner, characterized in that: The device includes a body (1), an igniter (2), a detection component (3), and a burner (4). The surface of the body (1) is provided with a combustion chamber (11) for fuel combustion. The inner wall of the combustion chamber (11) is provided with a plurality of combustion-supporting holes (12) at intervals. The plurality of combustion-supporting holes (12) are all connected to the inner cavity of the body (1). The surface of the body (1) is provided with an air inlet (13) for the installation of an external pipe. The air inlet (13) is connected to the inner cavity of the body (1). Air passes through the air inlet (13), the inner cavity of the body (1), and the combustion-supporting holes (12) in sequence through the external pipe and enters the combustion chamber (11). The burner (4) is connected to the inner wall of the body (1). The inner wall of the combustion chamber (11) facing the gas outlet of the burner (4) is provided with a plurality of combustion holes (16) spaced apart. The burner (4) supplies natural gas to enter the combustion chamber (11) through the combustion holes (16). The igniter (2) is connected to the inner wall of the combustion chamber (11). The igniter (2) can ignite the natural gas in the combustion chamber (11). The detection component (3) is connected to the inner wall of the combustion chamber (11). The detection component (3) can detect the temperature in the combustion chamber (11) and control the on / off state of the burner (4).

2. The burner according to claim 1, characterized in that: The detection component (3) includes a controller and multiple temperature sensors (31). Multiple positioning cavities (14) for the temperature sensors (31) to pass through are provided on the surface of the body (1). The positioning cavities (14) are connected to the inner cavity of the body (1). Multiple clamping cavities (15) for the temperature sensors (31) to pass through are provided at intervals on the inner wall of the combustion chamber (11). The clamping cavities (15) are connected to the inner cavity of the body (1), and the clamping cavities (15) correspond one-to-one with the positioning cavities (14). When the detection end of the temperature sensor (31) passes through the positioning cavity (14), the inner cavity of the body (1), and the clamping cavity (15) and faces the combustion chamber (11), the temperature sensor (31) can detect the temperature in the combustion chamber (11). The burner (4) and multiple temperature sensors (31) are all electrically connected to the controller. The temperature sensor (31) sends the detected value to the controller. The controller compares the detected value with the preset value and controls the on / off state of the burner (4).

3. The burner according to claim 2, characterized in that: The burner (4) includes a vent pipe (41) and a vent box (42). The vent box (42) is connected to the inner wall of the body (1). The surface of the vent box (42) facing the combustion hole (16) is provided with a plurality of vent holes (421) at intervals. The vent holes (421) connect the combustion hole (16) and the inner cavity of the vent box (42). The surface of the body (1) is provided with a vent cavity (17) through which the vent pipe (41) passes. The vent cavity (17) connects to the inner cavity of the body (1). One end of the vent pipe (41) passes through the venting cavity (17) and is embedded in the inner cavity of the machine body (1) and connected to the surface of the venting box (42). The other end of the vent pipe (41) is connected to the gas storage tank. The vent pipe (41) is electrically connected to the controller. The controller can control the opening and closing of the vent pipe (41). The natural gas in the gas storage tank enters the inner cavity of the venting box (42) through the vent pipe (41) and passes through the venting hole (421) and the combustion hole (16) in sequence and enters the combustion chamber (11).

4. The burner according to claim 1, characterized in that: The igniter (2) includes a spark plug (21) and an ignition pipe (22). One end of the ignition pipe (22) is connected to a gas storage tank, and the other end of the ignition pipe (22) is threaded to the end of the spark plug (21). The inner wall of the combustion chamber (11) is provided with an installation hole (18) through which the end of the spark plug (21) passes. The inner wall of the installation hole (18) abuts against the outer circumferential surface of the spark plug (21) to form a positioning. The natural gas in the gas storage tank enters the spark plug (21) through the ignition pipe (22), and the spark plug (21) ignites the natural gas in the combustion chamber (11).

5. The burner according to claim 4, characterized in that: The surface of the body (1) is provided with an ignition cavity (19) through which the ignition pipe (22) passes. The ignition cavity (19) is connected to the inner cavity of the body (1). The inner wall of the ignition cavity (19) is pressed against the outer circumferential surface of the ignition pipe (22) to form a positioning.

6. The burner according to claim 3, characterized in that: The inner wall of the body (1) is connected to an air guide plate (5). The air guide plate (5) is located between the ventilation box (42) and the air inlet (13). The surface of the air guide plate (5) is provided with multiple air guide holes (51) spaced apart. The air guide plate (5) guides the air in the body (1) through the air guide holes (51) and into the combustion chamber (11) through the combustion hole (12).

7. The burner according to claim 1, characterized in that: The arrangement direction of the combustion holes (16) is parallel to the width direction of the body (1). The multiple combustion-supporting holes (12) are divided into two groups, and the two groups of combustion-supporting holes (12) are located on both sides of the combustion holes (16). The arrangement direction of the multiple combustion-supporting holes (12) in the same group is parallel to the arrangement direction of the combustion holes (16).

8. The burner according to claim 7, characterized in that: The combustion chamber (11) with the combustion hole (12) has a guide surface (111) on its inner wall. The inclination height of the guide surface (111) decreases as the distance to the combustion hole (16) decreases. The guide surface (111) guides the air flow to the combustion hole (16).

Images