Air-blast burner

Abstract

The application provides a blast burner with good secondary air supplementing effect for inner ring combustion flame. The blast burner comprises a burner body, the burner body is provided with an inner ring nozzle, an inner ring gas mixing channel and a first air supplementing groove, the inner ring nozzle is communicated with an inlet end of the inner ring gas mixing channel, the first air supplementing groove is opened at the top and communicated with the outside of the burner body, and the inner ring gas mixing channel is circumferentially arranged outside the first air supplementing groove; a flow regulating component is arranged below the inner ring gas mixing channel, the flow regulating component is provided with a flow regulating cavity, an air inlet and a plurality of first air holes, the first air holes are arranged on the top cavity wall of the flow regulating cavity, the first air holes are communicated with the flow regulating cavity and the first air supplementing groove, and the air inlet is arranged on the bottom cavity wall of the flow regulating cavity; and a fan is provided with an air outlet, the air outlet is communicated with the air inlet of the flow regulating component. The application uniformly and stably increases the secondary air of the inner ring combustion flame, and improves the overall combustion efficiency of the blast burner.

Description

TECHNICAL FIELD

[0001] The present application relates to a burner, in particular to a blast burner and gas stove, belonging to the technical field of burners. BACKGROUND

[0002] The burner is an important component affecting the energy consumption level of the gas stove. The secondary air obtained by the inner ring combustion flame of the existing burner during the combustion process is insufficient, which affects the combustion efficiency. Directly supplementing the secondary air required by the inner ring combustion flame during the combustion process in the blast mode, due to the too fast flow rate and too large pressure of the air flow blown by the fan, the supplemented air flow is easily concentrated in a local area, which still has an adverse effect on the inner ring combustion flame. SUMMARY

[0003] Based on the above background, the purpose of the present application is to provide a blast burner with good secondary air supplementing effect for the inner ring combustion flame, which solves the problems in the background art.

[0004] In order to achieve the above-mentioned purpose of the application, the present application provides the following technical scheme:

[0005] A blast burner, comprising:

[0006] A burner body, the burner body is provided with an inner ring nozzle, an inner ring gas mixing channel and a first air supply groove, the inner ring nozzle is communicated with the inlet end of the inner ring gas mixing channel, the first air supply groove is open at the top and communicated with the outside of the burner body, and the inner ring gas mixing channel is circumferentially surrounded outside the first air supply groove;

[0007] A flow regulating component, the flow regulating component is located below the inner ring gas mixing channel, the flow regulating component is provided with a flow regulating cavity, an air inlet and a plurality of first air holes, the first air holes are arranged on the top cavity wall of the flow regulating cavity, the first air holes are communicated with the flow regulating cavity and the first air supply groove, and the air inlet is arranged on the bottom cavity wall of the flow regulating cavity;

[0008] A fan, the fan has an air outlet, and the air outlet is communicated with the air inlet of the flow regulating component.

[0009] The air flow shot by the fan is regulated by the flow regulating cavity, and the air flow after uniform flow deceleration enters the first air supply groove from the first air holes, the secondary air supply for the inner ring combustion flame located above the inner ring gas mixing channel is carried out from the space of the central part surrounded by the inner ring gas mixing channel, the secondary air of the inner ring combustion flame is uniformly and stably increased, and the overall combustion efficiency of the blast burner is improved.

[0010] Preferably, the air inlet is arranged on the wall of the rectifying cavity near the center of the bottom of the rectifying cavity. Through the above technical solution, the air flow emitted by the fan enters the rectifying cavity through the air inlet and diffuses from the central part of the rectifying cavity to the peripheral part, thereby improving the uniform diffusion effect of the air flow.

[0011] Preferably, the rectifying part is internally provided with a wind blocking part protruding from the top wall of the rectifying cavity and extending towards the air inlet, the end surface of the wind blocking part is opposite to the air inlet and is configured as the bottom wall of the first air supply groove, and the first air holes are distributed on the side surface of the wind blocking part. Through the above technical solution, after the air flow emitted by the fan enters the rectifying cavity through the air inlet, at least part of the air flow is blocked by the end of the wind blocking part and is forced to diffuse to other parts of the rectifying cavity, and does not directly hit the first air holes, thereby further improving the uniform flow and speed reduction effect of the rectifying cavity on the air flow.

[0012] Preferably, the rectifying part is internally provided with a transition part connecting the top wall of the rectifying cavity and the wind blocking part, at least part of the surface of the transition part is configured as an arc surface recessed from the top wall of the rectifying cavity, the arc surface extends towards the wind blocking part and is connected with the side surface of the wind blocking part. Through the above technical solution, the transition part plays a role in guiding the air flow entering the rectifying cavity from the air inlet to the peripheral part of the rectifying cavity, thereby further improving the diffusion effect of the air flow in the rectifying cavity.

[0013] Preferably, the first air holes are uniformly distributed on the side surface of the wind blocking part in the circumferential direction, and the central axis of the first air holes forms an angle with the central axis of the first air supply groove. Through the above technical solution, the air flow in the rectifying cavity enters the first air supply groove at an inclined angle from the plurality of first air holes, thereby improving the rectifying effect of the first air holes on the air flow.

[0014] Preferably, the burner body is further provided with an air supply member arranged adjacent to the inner ring nozzle, the air supply member is provided with an air supply cavity and a plurality of second air holes, the air supply cavity is communicated with the air outlet of the fan, and the second air holes are communicated with the air supply cavity and the inlet end of the inner ring mixing cavity. Through the above technical solution, when the gas flow is emitted by the inner ring nozzle and enters the inlet end of the inner ring mixing cavity, a negative pressure is formed at this part, the air flow emitted by the fan enters the air supply cavity, and under the action of the above negative pressure, the air flow is injected into the inner ring mixing cavity through the second air holes, mixed with the gas flow to form a mixed gas flow, and the air supply member plays a role of supplying primary air to the mixed gas flow, thereby uniformly and stably increasing the primary air of the inner ring combustion flame.

[0015] As preferred, the burner body is further provided with an outer ring nozzle, an outer ring air mixing channel and a second air supply groove, the outer ring nozzle is communicated with the inlet end of the outer ring air mixing channel, the second air supply groove is opened at the top and communicated with the outside of the burner body, the second air supply groove is circumferentially arranged outside the inner ring air mixing channel, the outer ring air mixing channel is circumferentially arranged outside the second air supply groove, the flow regulating component is further provided with a plurality of third air holes and a plurality of fourth air holes, the third air holes and the fourth air holes are arranged on the top cavity wall of the flow regulating cavity, the third air holes and the fourth air holes are respectively and individually communicated with the flow regulating cavity and the second air supply groove. Through the above technical scheme, part of the air flow in the flow regulating cavity enters different parts of the second air supply groove through the third air holes and the fourth air holes respectively, and the second air supply groove is opened at the top to uniformly and stably supply secondary air to the inner ring combustion flame and the outer ring combustion flame.

[0016] As preferred, the third air holes are arranged adjacent to the inner ring air mixing channel, and the fourth air holes are arranged adjacent to the outer ring air mixing channel. Through the above technical scheme, part of the air flow in the flow regulating cavity supplies secondary air to the inner ring combustion flame through the third air holes, and part of the air flow in the flow regulating cavity supplies secondary air to the outer ring combustion flame through the fourth air holes.

[0017] As preferred, the burner body is further provided with a gas distribution disc and a base, the gas distribution disc is provided with at least two upper ring walls protruding from the surface of the gas distribution disc and sequentially distributed from the middle part to the outer periphery of the gas distribution disc, the space between the upper ring walls located in the middle part of the gas distribution disc is configured as the first air supply groove, the space between the upper ring walls located in the outer periphery of the gas distribution disc and the upper ring walls located in the middle part of the gas distribution disc is configured as the inner ring air mixing channel, the gas distribution disc is further provided with a lower ring wall protruding from the bottom surface of the gas distribution disc, and the space surrounded by the bottom surface of the gas distribution disc, the lower ring wall and the surface of the base is configured as the flow regulating cavity. Through the above technical scheme, the flow regulating component is configured as part of the burner body, and forms an integrated structure with the burner body, thereby improving the installation and dismounting convenience of the air blast burner.

[0018] As preferred, the burner body is further provided with an air guiding component, the air guiding component is provided with an air guiding cavity, the inlet of the air guiding cavity is communicated with the air outlet of the fan, the outlet of the air guiding cavity is communicated with the air inlet of the flow regulating component, and the air guiding cavity has at least one bending area for changing the direction of air flow. Through the above technical scheme, the air flow shot by the fan is first slowed down by changing the direction of the air flow in the bending area inside the air guiding component, and then enters the flow regulating cavity through the air inlet, thereby improving the air flow slowing effect of the fan of the air blast burner.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The air-blast burner of the present application is characterized in that: the air flow is emitted by the fan, and the inner ring combustion flame above the inner ring air mixing cavity is supplied with secondary air from the center space surrounded by the inner ring air mixing cavity after the air flow is uniformly flowed and slowed down by the flow regulating cavity, so that the secondary air of the inner ring combustion flame is uniformly and stably increased, and the overall combustion efficiency of the air-blast burner is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0022] Figure 1 is a schematic view of the internal structure of the air-blast burner of the present application;

[0023] Figure 2 is Figure 1 is an enlarged view of part A in

[0024] Figure 3 is a schematic view of the three-dimensional structure of the air-blast burner of the present application;

[0025] Figure 4 is a schematic view of the internal structure of the air-blast burner of the present application from the top;

[0026] Figure 5 is a schematic view of the air-blast burner of the present application from the top;

[0027] Figure 6 is a schematic view of the structure of the air supply part in the present application.

[0028] In the drawings: 1, burner body; 2, flow regulating part; 3, fan; 101, inner ring nozzle; 102, inner ring air mixing cavity; 103, inner ring fire cover; 104, first air supply groove; 105, outer ring nozzle; 106, outer ring air mixing cavity; 107, outer ring fire cover; 108, second air supply groove; 109, gas distribution disc; 110, base; 111, air supply part; 112, air induction part; 1091, first upper ring wall; 1092, second upper ring wall; 1093, third upper ring wall; 1094, fourth upper ring wall; 1095, lower ring wall; 1111, air supply cavity; 1112, second air hole; 1121, air induction cavity; 1122, bending area; 201, flow regulating cavity; 202, air inlet; 203, first air hole; 204, third air hole; 205, fourth air hole; 2011, wind blocking part; 2012, transition part; 301, air outlet. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be further described in detail below with reference to specific examples and in conjunction with the drawings. It should be understood that the implementation of the present application is not limited to the following examples, and any form of modification and / or change made to the present application will fall within the scope of protection of the present application.

[0030] In the present application, all the parts and percentages are by weight, the equipment and raw materials used are commercially available or commonly used in the art. The methods in the following examples are conventional methods in the art unless otherwise specified. The components or equipment in the following examples are general standard components or components known to those skilled in the art unless otherwise specified, the structure and principle of which are known to those skilled in the art through technical manuals or conventional experimental methods.

[0031] The embodiment of the present application discloses a blast burner, comprising a burner body, a flow regulating component and a fan. The burner body is provided with an inner ring nozzle, an inner ring gas mixing channel and a first air supply groove. The inner ring nozzle is connected to the inlet end of the inner ring gas mixing channel. The first air supply groove is open at the top and is connected to the outside of the burner body. The inner ring gas mixing channel is circumferentially arranged outside the first air supply groove. The flow regulating component is arranged below the inner ring gas mixing channel. The flow regulating component is provided with a flow regulating chamber, an air inlet and a plurality of first air holes. The first air holes are arranged on the top wall of the flow regulating chamber. The first air holes are connected to the flow regulating chamber and the first air supply groove. The air inlet is arranged on the bottom wall of the flow regulating chamber. The fan is provided with an air outlet which is connected to the air inlet of the flow regulating component. The airflow emitted by the fan is regulated by the flow regulating chamber. The airflow after uniform flow deceleration enters the first air supply groove from the first air holes. The airflow from the space around the center of the inner ring gas mixing channel provides secondary air supply for the inner ring combustion flame above the inner ring gas mixing channel. The secondary air of the inner ring combustion flame is uniformly and stably increased, thereby improving the overall combustion efficiency of the blast burner.

[0032] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, one or more embodiments can be implemented without these specific details.

[0033] As Figures 1-6 shown in a blast burner, the blast burner is a double-ring fire burner with an inner ring combustion flame and an outer ring combustion flame, comprising a burner body 1, a flow regulating component 2 and a fan 3.

[0034] The burner body 1 is provided with an inner ring nozzle 101, an inner ring mixing cavity 102, an inner ring fire cover 103, a first air supply groove 104, an outer ring nozzle 105, an outer ring mixing cavity 106, an outer ring fire cover 107 and a second air supply groove 108. The inner ring nozzle 101 is communicated with the inlet end of the inner ring mixing cavity 102, the first air supply groove 104 is opened at the top and communicated with the outside of the burner body 1, the inner ring mixing cavity 102 is circumferentially surrounded outside the first air supply groove 104, and the inner ring fire cover 103 is covered above the inner ring mixing cavity 102. The outer ring nozzle 105 is communicated with the inlet end of the outer ring mixing cavity 106, the second air supply groove 108 is opened at the top and communicated with the outside of the burner body 1, the second air supply groove 108 is circumferentially surrounded outside the inner ring mixing cavity 102, the outer ring mixing cavity 106 is circumferentially surrounded outside the second air supply groove 108, and the outer ring fire cover 107 is covered above the outer ring mixing cavity 106.

[0035] The rectifying component 2 is located below the inner ring mixing cavity 102, and the rectifying component 2 is provided with a rectifying cavity 201, an air inlet 202 and a plurality of first air holes 203. The first air holes 203 are arranged on the top cavity wall of the rectifying cavity 201, the first air holes 203 are communicated with the rectifying cavity 201 and the first air supply groove 104, and the air inlet 202 is arranged on the bottom cavity wall of the rectifying cavity 201.

[0036] Specifically, the aforementioned burner body 1 is further provided with a gas distribution disc 109 and a base 110. The gas distribution disc 109 is provided with four upper ring walls protruding from the surface of the gas distribution disc 109 and sequentially distributed from the middle part to the outer periphery of the gas distribution disc 109, which are respectively a first upper ring wall 1091, a second upper ring wall 1092, a third upper ring wall 1093 and a fourth upper ring wall 1094. The space between the first upper ring wall 1091 is configured as the first air supply groove 104, the space between the first upper ring wall 1091 and the second upper ring wall 1092 is configured as the inner ring gas mixing channel 102, the space between the second upper ring wall 1092 and the third upper ring wall 1093 is configured as the second air supply groove 108, and the space between the third upper ring wall 1093 and the fourth upper ring wall 1094 is configured as the outer ring gas mixing channel 106. Of course, in another embodiment, when the burner is a single-ring fire burner, the gas distribution disc 109 can also be provided with only two upper ring walls, wherein the space between the upper ring wall located in the middle part of the gas distribution disc 109 is configured as the first air supply groove 104, and the space between the upper ring wall located at the outer periphery of the gas distribution disc 109 and the upper ring wall located in the middle part of the gas distribution disc 109 is configured as the inner ring gas mixing channel 102. In this embodiment, the gas distribution disc 109 is further provided with a lower ring wall 1095 protruding from the bottom surface of the gas distribution disc 109, and the space enclosed by the bottom surface of the gas distribution disc 109, the lower ring wall 1095 and the surface of the base 110 is configured as the flow regulation cavity 201. The flow regulation component 2 is configured as part of the burner body 1 and forms an integrated structure with the burner body 1, thereby improving the installation and removal convenience of the air blast burner. Of course, in another embodiment, the flow regulation component 2 and the burner body 1 can also be a split structure, and the flow regulation component 2 is a separate component independent of the burner body 1.

[0037] The fan 3 has an air outlet 301 which is communicated with the air inlet 202 of the flow regulation component 2.

[0038] The airflow emitted by the fan 3 is regulated by the flow regulation cavity 201, and the airflow after being uniformly flowed and decelerated enters the first air supply groove 104 from the first air hole 203, and the inner ring combustion flame located above the inner ring gas mixing channel 102 is secondarily air supplied from the space around the central part of the inner ring gas mixing channel 102, thereby uniformly and stably increasing the secondary air of the inner ring combustion flame, and thus improving the overall combustion efficiency of the air blast burner.

[0039] In this embodiment, in order to improve the uniform diffusion effect of the airflow, the air inlet 202 is arranged on the cavity wall adjacent to the central part of the bottom of the flow regulation cavity 201, so that the airflow emitted by the fan 3 enters the flow regulation cavity 201 from the air inlet 202 and diffuses from the central part to the outer periphery of the flow regulation cavity 201.

[0040] In the present embodiment, in order to further improve the uniform flow and deceleration effect of the rectifying cavity 201 on the airflow, the air baffle part 2011 protruding from the top cavity wall of the rectifying cavity 201 and extending towards the air inlet 202 is arranged inside the rectifying part 2, the end surface of the air baffle part 2011 is opposite to the air inlet 202 and is configured as the bottom groove wall of the first air supply groove 104, and the first air holes 203 are distributed on the side surface of the air baffle part 2011, so that after the airflow emitted by the fan 3 enters the rectifying cavity 201 through the air inlet 202, at least part of the airflow is blocked by the end of the air baffle part 2011 and is forced to diffuse to other parts of the rectifying cavity 201, and does not directly rush to the first air holes 203.

[0041] In the present embodiment, in order to further improve the diffusion effect of the airflow in the rectifying cavity 201, the transition part 2012 connecting the top cavity wall of the rectifying cavity 201 and the air baffle part 2011 is arranged inside the rectifying part 2, at least part of the surface of the transition part 2012 is configured as an arc surface recessed from the top cavity wall of the rectifying cavity 201, the arc surface extends towards the air baffle part 2011 and is connected with the side surface of the air baffle part 2011, and the transition part 2012 plays a role of guiding the airflow entering the rectifying cavity 201 from the air inlet 202 to the peripheral part of the rectifying cavity 201.

[0042] In the present embodiment, in order to improve the rectifying effect of the first air holes 203 on the airflow, the first air holes 203 are uniformly distributed on the side surface of the air baffle part 2011 in the circumferential direction, the central axis of the first air holes 203 forms an acute angle with the central axis of the first air supply groove 104 in the direction from the bottom of the burner body 1 to the top of the burner body 1, so that the airflow in the rectifying cavity 201 enters the first air supply groove 104 from the plurality of first air holes 203 at an inclined upward angle. Of course, in another embodiment, the angle can also be set to a right angle, so that the airflow in the rectifying cavity 201 enters the first air supply groove 104 from the side of the airflow flowing direction of the first air supply groove 104. Alternatively, the angle can also be set to an obtuse angle, so that the airflow in the rectifying cavity 201 enters the first air supply groove 104 from the plurality of first air holes 203 at an inclined downward angle.

[0043] In the present embodiment, in order to uniformly and stably increase the primary air of the inner ring combustion flame, the burner body 1 is further provided with an air supplement member 111, which is arranged adjacent to the inner ring nozzle 101, and the air supplement member 111 is provided with an air supplement cavity 1111 and a plurality of second air holes 1112, the air supplement cavity 1111 is communicated with the air outlet 301 of the fan 3, and the second air holes 1112 are communicated with the air supplement cavity 1111 and the inlet end of the inner ring gas mixing channel 102. When the gas flow is ejected by the inner ring nozzle 101 into the inlet end of the inner ring gas mixing channel 102, a negative pressure is formed at this position, the air flow ejected by the fan 3 enters the air supplement cavity 1111, and under the action of the above-mentioned negative pressure, the air flow is injected into the inner ring gas mixing channel 102 through the second air holes 1112, mixed with the gas flow to form a mixed gas flow, and the air supplement member 111 plays a role of supplementing the primary air for the mixed gas flow.

[0044] In the present embodiment, the rectifying member 2 is further provided with a plurality of third air holes 204 and a plurality of fourth air holes 205, the third air holes 204 and the fourth air holes 205 are arranged on the top cavity wall of the rectifying cavity 201, and the third air holes 204 and the fourth air holes 205 are respectively and individually communicated with the rectifying cavity 201 and the second air supplement groove 108. Part of the air flow in the rectifying cavity 201 enters different positions of the second air supplement groove 108 through the third air holes 204 and the fourth air holes 205 respectively, and uniformly and stably supplements the secondary air for the inner ring combustion flame and the outer ring combustion flame through the top opening of the second air groove.

[0045] Specifically, the third air holes 204 are arranged adjacent to the inner ring gas mixing channel 102, and the fourth air holes 205 are arranged adjacent to the outer ring gas mixing channel 106. Part of the air flow in the rectifying cavity 201 uniformly and stably supplements the secondary air for the inner ring combustion flame through the third air holes 204, and part of the air flow in the rectifying cavity 201 uniformly and stably supplements the secondary air for the outer ring combustion flame through the fourth air holes 205.

[0046] In the present embodiment, in order to improve the air flow deceleration effect of the fan 3 on the air flow, the burner body 1 is further provided with an air guiding member 112, which is provided with an air guiding cavity 1121, the inlet of the air guiding cavity 1121 is communicated with the air outlet 301 of the fan 3, the outlet of the air guiding cavity 1121 is communicated with the air inlet 202 of the rectifying member 2, and the air guiding cavity 1121 has a bending area 1122 for changing the direction of the air flow. The air flow ejected by the fan 3 first changes the direction of the air flow through the bending area 1122 in the air guiding member 112 to decelerate, and then enters the rectifying cavity 201 through the air inlet 202. Of course, the bending area 1122 can also be provided in multiple.

[0047] It should be noted that although the embodiments of the present application are described by taking the double-ring fire burner as an example, the technical solutions of the present application can of course also be applied to single-ring fire burners and multi-ring fire burners, and those skilled in the art can make adaptive modifications to the nozzle, the gas mixing channel and the fire cover according to the prior art, which will not be described herein.

[0048] The principles and implementation manners of the present application are described herein by taking specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be noted that those skilled in the art can make some improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A forced air burner characterized by: The blast burner comprises: a burner body (1) provided with an inner ring nozzle (101), an inner ring gas mixing channel (102) and a first air supply groove (104), the inner ring nozzle (101) being communicated with the inlet end of the inner ring gas mixing channel (102), and the first air supply groove (104) being open at the top and communicated with the outside of the burner body (1), and the inner ring gas mixing channel (102) being circumferentially arranged outside the first air supply groove (104); a flow regulating component (2) arranged below the inner ring gas mixing channel (102), the flow regulating component (2) being provided with a flow regulating cavity (201), an air inlet (202) and a plurality of first air holes (203), the first air holes (203) being arranged on the top cavity wall of the flow regulating cavity (201), the first air holes (203) being communicated with the flow regulating cavity (201) and the first air supply groove (104), and the air inlet (202) being arranged on the bottom cavity wall of the flow regulating cavity (201); the flow regulating component (2) is internally provided with a wind blocking part (2011) protruding from the top cavity wall of the flow regulating cavity (201) and extending towards the air inlet (202), the end surface of the wind blocking part (2011) being opposite to the air inlet (202) and configured as the bottom groove wall of the first air supply groove (104), and the first air holes (203) being distributed on the side surface of the wind blocking part (2011); a fan (3) having an air outlet (301) communicated with the air inlet (202) of the flow regulating component (2).

2. The air blast combustor of claim 1, wherein: The air inlet (202) is arranged on the cavity wall adjacent to the bottom center of the flow regulating cavity (201).

3. The air blast combustor of claim 1, wherein: The flow regulating component (2) is internally provided with a transition part (2012) connecting the top cavity wall of the flow regulating cavity (201) and the wind blocking part (2011), at least a part of the surface of the transition part (2012) being configured as an arc surface recessed from the top cavity wall of the flow regulating cavity (201), the arc surface extending towards the wind blocking part (2011) and being connected with the side surface of the wind blocking part (2011).

4. The air blast combustor of claim 1, wherein: The first air holes (203) are circumferentially and uniformly distributed on the side surface of the wind blocking part (2011), and the central axis of the first air holes (203) forms an angle with the central axis of the first air supply groove (104).

5. The air blast combustor of claim 1, wherein: The burner body (1) is further provided with an air supply part (111) arranged adjacent to the inner ring nozzle (101), the air supply part (111) being provided with an air supply cavity (1111) and a plurality of second air holes (1112), the air supply cavity (1111) being communicated with the air outlet (301) of the fan (3), and the second air holes (1112) being communicated with the air supply cavity (1111) and the inlet end of the inner ring gas mixing channel (102).

6. The air blast combustor of claim 1, wherein: The burner body (1) is further provided with an outer ring nozzle (105), an outer ring mixing cavity (106) and a second air supply groove (108), the outer ring nozzle (105) is communicated with the inlet end of the outer ring mixing cavity (106), the second air supply groove (108) is opened at the top and communicated with the outside of the burner body (1), the second air supply groove (108) is circumferentially surrounded outside the inner ring mixing cavity (102), the outer ring mixing cavity (106) is circumferentially surrounded outside the second air supply groove (108), the flow regulating component (2) is further provided with a plurality of third air holes (204) and a plurality of fourth air holes (205), the third air holes (204) and the fourth air holes (205) are arranged on the top cavity wall of the flow regulating cavity (201), the third air holes (204) and the fourth air holes (205) are respectively communicated with the flow regulating cavity (201) and the second air supply groove (108) individually.

7. The air blast combustor of claim 6, wherein: The third air holes (204) are arranged adjacent to the inner ring mixing cavity (102), and the fourth air holes (205) are arranged adjacent to the outer ring mixing cavity (106).

8. The air blast combustor of claim 1, wherein: The burner body (1) is further provided with a gas distribution disc (109) and a base (110), the gas distribution disc (109) is provided with at least two upper ring walls protruding from the surface of the gas distribution disc (109) and distributed in sequence from the middle to the outer periphery of the gas distribution disc (109), the space between the upper ring walls located in the middle of the gas distribution disc (109) is configured as the first air supply groove (104), the space between the upper ring walls located in the outer periphery of the gas distribution disc (109) and the upper ring walls located in the middle of the gas distribution disc (109) is configured as the inner ring mixing cavity (102), the gas distribution disc (109) is further provided with a lower ring wall (1095) protruding from the bottom surface of the gas distribution disc (109), and the space surrounded by the bottom surface of the gas distribution disc (109), the lower ring wall (1095) and the surface of the base (110) is configured as the flow regulating cavity (201).

9. The air blast combustor of claim 1, wherein: The burner body (1) is further provided with an air induction component (112), the air induction component (112) is provided with an air induction cavity (1121), the inlet of the air induction cavity (1121) is communicated with the air outlet (301) of the fan (3), the outlet of the air induction cavity (1121) is communicated with the air inlet (202) of the flow regulating component (2), and the air induction cavity (1121) has at least one bending area (1122) for changing the direction of air flow.

Images