Brown gas heating nozzle with flame prolonging function

Abstract

The invention discloses a Brown gas heating nozzle with a flame prolonging function, and relates to the technical field of combustion equipment.The Brown gas heating nozzle with the flame prolonging function comprises a shell, the shell is fixedly connected with one end of a distributor, and the other end of the distributor is fixedly connected with a cavity cylinder; a Brown gas pipeline, a water inlet pipeline and a water return pipeline are inserted into the cavity cylinder, the Brown gas pipeline penetrates through the cavity cylinder and is fixedly connected with the distributor, the distributor and the Brown gas pipeline are coaxially arranged, and the water inlet pipeline and the water return pipeline are fixed to the two sides of the Brown gas pipeline respectively. A spiral piece is mounted in the distributor; the length of the Brown gas flame is greatly increased through the optimal proportion of the through-flow area of each channel, and after gas passes through the spiral piece in the main channel, the premixing effect of the Brown gas is enhanced, the combustion efficiency is improved, the flame is further prolonged, the local high-temperature point is reduced, and the problem that the length of the Brown gas flame is shorter than that of a traditional burner is solved.

Description

Technical Field

[0001] The invention relates to the technical field of combustion equipment, in particular to a Brownian gas heating nozzle with a flame extension function. Background Art

[0002] In the fields of metallurgy, new material research and development, and heat treatment pilot testing, the combustion system of the heating furnace has a decisive influence on the accuracy of material process verification. The pilot heating furnace needs to verify the feasibility of new material formulas, heat treatment processes, or equipment technologies under conditions that simulate the actual production line environment. Therefore, it has extremely high requirements for the purity, temperature uniformity, and thermal efficiency of the heating environment. Brown's gas is an ideal alternative medium because of its zero carbon emissions and the fact that its combustion product is only water vapor. However, due to the extremely fast diffusion rate of hydrogen molecules in Brown's gas, the flame length of Brown's gas is usually less than 40% of that of natural gas, resulting in uneven temperature distribution in the pilot furnace and unable to meet the uniform heating requirements of large-sized specimens. At the same time, high-speed jets are prone to turbulent flameout, requiring frequent ignition and maintenance. Therefore, there is an urgent need to develop a heating nozzle specifically for Brown's gas that can significantly extend the flame length and is safe and stable to support the pilot verification of high-end materials. Summary of the Invention

[0003] The object of the present invention is to provide a Brownian gas heating nozzle with a flame extension function to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the Brown's gas heating nozzle with the flame extension function includes a shell, which is fixedly connected to one end of the distributor, and the other end of the distributor is fixedly connected to the cavity tube. The Brown's gas pipeline, water inlet pipeline and return water pipeline are inserted into the cavity tube, and the Brown's gas pipeline passes through the cavity tube and is fixedly connected to the distributor. The distributor is coaxially arranged with the Brown's gas pipeline, the water inlet pipeline and the return water pipeline are respectively fixed on both sides of the Brown's gas pipeline, and a spiral part is installed in the distributor.

[0005] As an optimal technical solution, an inner ring channel and an outer ring channel are provided on the end face of the shell, the inner ring channel includes three circles of evenly opened middle holes, the outer ring channel includes two circles of evenly opened outer ring holes, the diameter of the middle holes is larger than the diameter of the outer ring holes, a first cooling ring is provided on the inner wall of the shell, the first cooling ring is located between the inner ring channel and the outer ring channel, and a second cooling ring is provided on the inner side of the shell side wall.

[0006] As an optimal technical solution, a first sealing ring is provided on the outside of the inner ring channel of the inner wall of the shell, a second sealing ring is provided on the outside of the first cooling ring, and a third sealing ring is provided on the outside of the outer ring channel. A groove is provided at the bottom of the shell, and mounting grooves are evenly arranged on the inner wall of the bottom of the shell. A curved surface is provided on one side of the mounting groove, and the groove depth of the curved surface gradually decreases.

[0007] As an optimal technical solution, an acceleration chamber is provided at one end of the distributor, a limiting groove is symmetrically provided on the side wall of the acceleration chamber, an air supply ring is provided on the outside of the acceleration chamber, a main sealing ring is provided on the side wall of the distributor, and slots are evenly arranged below the main sealing ring, a spring is installed in the slot, a pin is embedded in the slot, and an inclined surface is provided on the pin. A mounting portion is provided on the outer edge of the distributor, and a mounting boss is provided on the mounting portion. The mounting boss can be embedded in the groove, and a gas sensor is provided on the outside of the mounting boss.

[0008] As an optimal technical solution, a main channel is provided in the distributor, a throttling channel is provided between the main channel and the acceleration chamber, a plurality of evenly arranged secondary channels are provided in the main channel, and the secondary channels are connected to the air supply ring.

[0009] As an optimal technical solution, the flow area ratio of the main channel to the secondary channel is 10:7, the flow area ratio of the middle hole to the throttling channel is 10:6, and the flow area ratio of the outer ring hole to the secondary channel is 10:6.

[0010] As a preferred technical solution, cooling water channels are symmetrically provided on both sides of the main channel, the cooling water channels include a water inlet channel and a water return channel, the water inlet channel includes a first water inlet branch and a second water inlet branch, the first water inlet branch is connected to the first cooling ring, and the second water inlet branch is connected to the second cooling ring;

[0011] The return water channel includes a first return water branch and a second return water branch, the first return water branch is connected to the first cooling ring, and the second return water branch is connected to the second cooling ring.

[0012] As an optimal technical solution, a pipe joint is provided at one end of the Brownian air pipeline, and the other end of the Brownian air pipeline is connected to the main channel. A pipe joint is also provided at one end of the water inlet pipeline, and the other end of the water inlet pipeline is connected to the water inlet channel. A pipe joint is also provided at one end of the return water pipeline, and the other end of the return water pipeline is close to the bottom of the cavity.

[0013] As a preferred technical solution, the spiral member includes a fixed ring and a rotating vane located at the center of the fixed ring. The rotating vane is fixedly installed in the fixed ring, and a limiting plate is symmetrically provided on the outer side of the fixed ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The optimal ratio of the flow area of ​​each channel greatly increases the length of the Brownian gas flame. After the gas passes through the spiral element in the main channel, the Brownian gas premixing effect is enhanced, the combustion efficiency is improved, the flame is further prolonged and the local high temperature points are reduced, thus solving the problem that the Brownian gas flame length is shorter than that of traditional burners.

[0016] 2. The shell and the dispenser are connected through a quick-release structure, which not only improves installation efficiency but also facilitates subsequent maintenance work, greatly shortening the time for replacing vulnerable parts in the nozzle;

[0017] 3. The cooling water reaches the core area of ​​the Brownian gas heating nozzle first. The two cooling water channels circulate once each and then flow to the cavity together. When the water returns, it fills the entire cavity to ensure all-round cooling of the nozzle, thereby increasing the life of the nozzle. At the same time, multiple sealing structures are set between the shell and the distributor to prevent water and gas mixing from affecting the combustion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-section structure of the present invention from another angle;

[0021] Figure 4 It is a structural schematic diagram of the dispenser of the present invention;

[0022] Figure 5 Schematic diagram of the cross-section structure of the housing of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the spiral member of the present invention;

[0024] Figure 7 yes Figure 3 A schematic diagram of the enlarged structure.

[0025] In the figure: 1. Shell; 2. Distributor; 3. Cavity; 4. Brownian air pipe; 5. Water inlet pipe; 6. Water return pipe; 7. Screw; 8. Mounting part; 9. Cooling water channel;

[0026] 11. Inner ring channel; 12. Outer ring channel; 13. First cooling ring; 14. Second cooling ring; 15. First sealing ring; 16. Second sealing ring; 17. Third sealing ring; 18. Groove; 19. Mounting slot; 21. Acceleration chamber; 22. Air supply ring; 23. Main sealing ring; 24. Slot; 25. Main channel; 26. Throttle channel; 27. Secondary channel; 41. Pipe joint; 71. Retaining ring; 72. Rotary vane; 81. Mounting boss; 82. Gas sensor; 91. Water inlet channel; 92. Water return channel.

[0027] 1101, middle hole; 1201, outer ring hole; 1901, curved surface; 2101, limiting groove; 2401, spring; 2402, latch; 2403, inclined surface; 7101, limiting plate; 9101, first water inlet branch; 9102, second water inlet branch; 9201, first return water branch; 9202, second return water branch. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0029] Example: Figure 1-Figure 7As shown, the present invention provides a technical solution for a Brownian gas heating nozzle with a flame extension function, the Brownian gas heating nozzle with a flame extension function comprises a shell 1, the shell 1 is fixedly connected to one end of a distributor 2, the other end of the distributor 2 is fixedly connected to a cavity 3, a Brownian gas pipeline 4, a water inlet pipeline 5 and a return water pipeline 6 are inserted into the cavity 3, the Brownian gas pipeline 4 passes through the cavity 3 and is fixedly connected to the distributor 2, the distributor 2 and the Brownian gas pipeline 4 are coaxially arranged, the water inlet pipeline 5 and the return water pipeline 6 are respectively fixed on both sides of the Brownian gas pipeline 4, and a spiral member 7 is installed in the distributor 2; the gas in the Brownian gas pipeline 4 is a hydrogen and oxygen mixed gas generated by the electrolyte, which The mixed gas is transported to the nozzle through the Brownian gas pipeline 4 and ignited, thereby providing a heating environment with high combustion efficiency for the heating furnace; the mixed gas in the Brownian gas pipeline 4 first enters the main channel 25, and the main channel 25 is connected to several auxiliary channels 27, so part of the mixed gas enters the auxiliary channels 27 for the initial distribution of the mixed gas. After a lot of practice, when the flow area ratio of the main channel 25 to the auxiliary channels 27 is 10:7, the best combustion ratio can be achieved. The mixed gas distributed to the main channel 25 enters the acceleration chamber 21 through the throttling channel 26. When the mixed gas passes through the spiral member 7, due to the action of the rotary vane 72, the mixed gas can be The mixed gas rotates and is ejected from the inner ring channel 11. Through this swirl, the premixing effect of the mixed gas can be enhanced, thereby improving the combustion efficiency, further prolonging the flame and reducing local high-temperature points. The throttling channel 26 is set to accelerate the flow rate of the gas, thereby enhancing the gas diffusion capacity. The flow area ratio of the three circles of middle holes in the inner ring channel 11 to the flow area of ​​the throttling channel is 10:6. At this time, the best combustion ratio during inner ring combustion can be achieved; the mixed gas distributed to the auxiliary channel 27 enters the outer ring channel 12 through the air supply ring 22. The flow area ratio of the two circles of outer ring holes 1201 in the outer ring channel 12 to the flow area of ​​the auxiliary channel 27 is 10:6. At this time, the optimal combustion ratio can be achieved when the outer ring burns, and the diameter of the outer ring hole 1201 is smaller than the diameter of the middle hole 1101. Through this design, the outer ring hole 1201 can form a flame that stably wraps the inner ring, restrain the flame formed by the inner ring channel 11, prevent the flame of the inner ring channel 11 from spreading, and further extend the flame. In summary, by precisely controlling the flow area ratio of various channels in the nozzle, not only can the gas flow rate of the inner ring channel 11 be increased, and the flame can be avoided from spreading prematurely, but also the gas will form a flame that stably wraps the inner ring when burning in the outer ring channel 12, reducing turbulent diffusion to maintain the stability of the flame, and significantly extending the length of the flame.

[0030] An inner ring channel 11 and an outer ring channel 12 are provided on the end face of the shell 1. The inner ring channel 11 includes three circles of evenly opened middle holes 1101. The outer ring channel 12 includes two circles of evenly opened outer ring holes 1201. The diameter of the middle hole 1101 is larger than the diameter of the outer ring hole 1201. A first cooling ring 13 is provided on the inner wall of the shell 1. The first cooling ring 13 is located between the inner ring channel 11 and the outer ring channel 12. A second cooling ring 14 is provided on the inner side of the side wall of the shell 1.

[0031] A first sealing ring 15 is provided on the outside of the inner ring channel 11 on the inner wall of the shell 1, a second sealing ring 16 is provided on the outside of the first cooling ring 13, and a third sealing ring 17 is provided on the outside of the outer ring channel 12. A groove 18 is provided at the bottom of the shell 1, and mounting grooves 19 are evenly arranged on the inner wall of the bottom of the shell 1. A curved surface 1901 is provided on one side of the mounting groove, and the groove depth of the curved surface gradually decreases.

[0032] An acceleration chamber 21 is provided at one end of the distributor 2, and a limiting groove 2101 is symmetrically provided on the side wall of the acceleration chamber 21. An air supply ring 22 is provided on the outside of the acceleration chamber 21, and a main sealing ring 23 is provided on the side wall of the distributor 2. Slots 24 are evenly arranged below the main sealing ring 23. A spring 2401 is installed in the slot 24, and a pin 2402 is embedded in the slot 24. The pin 2402 is provided with a slope 2403. A mounting portion 8 is provided on the outer edge of the distributor 2, and a mounting boss 81 is provided on the mounting portion 8. The mounting boss 81 can be embedded in the groove 18, and a gas sensor 82 is provided on the outside of the mounting boss 81.

[0033] A main channel 25 is provided in the distributor 2, a throttling channel 26 is provided between the main channel 25 and the acceleration chamber 21, a plurality of evenly arranged auxiliary channels 27 are provided in the main channel 25, and the auxiliary channels 27 are connected to the air supply ring 22; the distance between the two limit plates 2502 is slightly larger than the width of the substrate. Such a design can prevent the substrate from falling off the transition piece 25 during transportation, and can also ensure that the substrate will not deviate during transportation, thereby reducing damage to the substrate.

[0034] The groove 18 at the bottom of the shell 1 cooperates with the mounting boss 81 on the dispenser 2. When the shell 1 is connected to the dispenser 2, the mounting boss 81 is inserted into the groove 18. During this process, the latch 2402 on the dispenser 2 is first squeezed along the inclined surface 2403 and retracted into the slot 24. When the slot 24 is connected to the mounting slot 19, the latch 2402 pops out again and embeds into the mounting slot 19, completing the quick connection between the shell 1 and the dispenser 2. When it is necessary to replace the parts in the nozzle, it is only necessary to rotate the shell 1. Through the rotation of the shell 1, the latch 2402 in the mounting slot 19 enters the curved surface 1901. Since the groove depth of the curved surface 1901 gradually decreases, as the shell 1 rotates, the latch 2402 in the mounting slot 19 enters the curved surface 1901. When the housing 1 is connected to the distributor 2, the mounting boss 81 and the groove 18 are not tightly fitted, and there is a gap between the two. This gap forms a labyrinth sealing structure. By setting such a bent and narrow gap, the sealing performance of the connection between the two can be greatly improved, which can prevent the leakage of the mixed gas and cooling water, and prevent dust or air from entering the nozzle and affecting the purity of the mixed gas. A gas sensor 82 is also installed on the inner wall of the gap, which can detect whether there is gas at the end of the labyrinth sealing structure, thereby judging whether there is gas leakage.

[0035] The flow area ratio of the main channel 25 to the secondary channel 27 is 10:7, the flow area ratio of the middle hole 1101 to the throttling channel 26 is 10:6, and the flow area ratio of the outer ring hole 1201 to the secondary channel 27 is 10:6.

[0036] The cooling water channel 9 is symmetrically arranged on both sides of the main channel 25, and comprises a water inlet channel 91 and a water return channel 92. The water inlet channel 91 comprises a first water inlet branch 9101 and a second water inlet branch 9102. The first water inlet branch 9101 is connected with the first cooling ring 13, and the second water inlet branch 9102 is connected with the second cooling ring 14. The water return channel 92 comprises a first water return branch 9201 and a second water return branch 9202. The first water return branch 9201 is connected with the first cooling ring 13, and the second water return branch 9202 is connected with the second cooling ring 14. One end of the Brown gas pipeline 4 is provided with a pipe joint 41, and the other end of the Brown gas pipeline 4 is connected into the main channel 25. One end of the water inlet pipeline 5 is also provided with a pipe joint 41, and the other end of the water inlet pipeline 5 is connected into the water inlet channel 91. One end of the water return pipeline 6 is also provided with a pipe joint 41, and the other end of the water return pipeline 6 is close to the bottom of the cavity cylinder 3. The cooling water enters the water inlet channel 91 firstly through the water inlet pipeline 5, and then is divided into two paths and flows into the first water inlet branch 9101 and the second water inlet branch 9102, respectively. The cooling water in the first water inlet branch 9101 enters the first cooling ring 13 and cools the part inside the inner ring channel 11, and the second water inlet branch 9102 enters the second cooling ring 14 and cools the part of the outer ring channel 12. After the cooling water circulates in the respective cooling ring for one circle, the cooling water in the first cooling ring 13 enters the first water return branch 9201, and the cooling water in the second cooling ring 14 enters the second water return branch 9202. Then, the two paths of cooling water jointly flow into the cavity cylinder 4. When the cavity cylinder 4 is filled with cooling water, the overflowed cooling water enters the water return pipeline 6, and a complete cooling inner circulation is completed.

[0037] The spiral member 7 comprises a fixed ring 71 and a rotating piece 72 located at the center of the fixed ring 71. The rotating piece 72 is fixedly installed in the fixed ring 71, and the outer side of the fixed ring 71 is symmetrically provided with a limiting plate 7101.

[0038] The working principle of the present application is as follows:

[0039] The mixed gas in the Brownian gas pipeline 4 first enters the main channel 25, and the main channel 25 is connected to several sub-channels 27, so part of the mixed gas enters the sub-channel 27 for the initial distribution of the mixed gas. After a lot of practice, when the flow area ratio of the main channel 25 to the sub-channel 27 is 10:7, the best combustion ratio can be achieved. The mixed gas distributed to the main channel 25 enters the acceleration chamber 21 through the throttling channel 26. When the mixed gas passes through the spiral 7, due to the action of the rotary vane 72, the mixed gas can be rotated and ejected from the inner ring channel 11. Through this swirl, the premixing effect of the mixed gas can be enhanced, thereby improving the combustion efficiency, further prolonging the flame and reducing local high-temperature points. Setting the throttling channel 26 can accelerate the flow rate of the gas, thereby enhancing the gas diffusion capacity. The flow area ratio of the three middle holes in the inner ring channel 11 to the flow area of ​​the throttling channel is 10:6. At this time, The optimal combustion ratio is achieved during inner ring combustion; the mixed gas distributed to the secondary channel 27 enters the outer ring channel 12 through the air supply ring 22, and the flow area ratio of the two outer ring holes 1201 in the outer ring channel 12 to the flow area of ​​the secondary channel 27 is 10:6. At this time, the optimal combustion ratio during outer ring combustion can be achieved, and the diameter of the outer ring hole 1201 is smaller than the diameter of the middle hole 1101. Through this design, the outer ring hole 1201 can form a flame that stably wraps the inner ring, restrain the flame formed in the inner ring channel 11, prevent the flame of the inner ring channel 11 from spreading, and further extend the flame. In summary, by precisely controlling the flow area ratio of various channels in the nozzle, not only can the gas flow rate of the inner ring channel 11 be increased, and the flame can be avoided from spreading prematurely, but also the gas will form a flame that stably wraps the inner ring when burning in the outer ring channel 12, reducing turbulent diffusion to maintain the stability of the flame and significantly extending the length of the flame.

[0040] The cooling water enters the cooling water channel 9 through the water inlet pipe 5. First, the cooling water enters the water inlet channel 91, and then splits into two paths and flows into the first water inlet branch 9101 and the second water inlet branch 9102 respectively. The cooling water in the first water inlet branch 9101 enters the first cooling ring 13 to cool the part within the inner ring channel 11, while the second water inlet branch 9102 enters the second cooling ring 14 to cool the part of the outer ring channel 12. After the cooling water circulates once in their respective cooling rings, the cooling water in the first cooling ring 13 enters the first return water branch 9201, and the cooling water in the second cooling ring 14 enters the second return water branch 9202. Then the two cooling waters flow into the cavity 4 together. When the cavity 4 is filled with cooling water, the overflowing cooling water enters the return water pipe 6, completing a complete cooling internal cycle.

[0041] The optimal matching of the flow area of each channel greatly increases the length of the Brown gas flame, and the gas passes through the spiral in the main channel, thereby enhancing the premixing effect of the Brown gas, improving the combustion efficiency, further prolonging the flame and reducing the local high temperature point, and solving the problem that the Brown gas flame length is shorter than the traditional burner.

[0042] The shell and the distributor are connected through a quick release structure, which can improve the installation efficiency, facilitate the subsequent maintenance work, and greatly shorten the time for replacing the easily damaged parts of the nozzle.

[0043] The cooling water reaches the core area of the Brown gas heating nozzle preferentially, and after circulating one circle, the two-way cooling water channels jointly flow to the cavity cylinder, and when returning, the water fills the entire cavity cylinder, ensuring the omnidirectional cooling of the nozzle, thereby improving the service life of the nozzle, and meanwhile, multiple sealing structures are arranged between the shell and the distributor, which can avoid the influence of the water-gas mixture on the combustion effect.

[0044] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the involved claims.

Claims

1. A Brownian gas heating nozzle with flame extension function, characterized in that: The Brownian gas heating nozzle with flame extension function comprises a shell (1), wherein the shell (1) is fixedly connected to one end of a distributor (2), and the other end of the distributor (2) is fixedly connected to a cavity (3), wherein a Brownian gas pipeline (4), a water inlet pipeline (5) and a water return pipeline (6) are inserted into the cavity (3), wherein the Brownian gas pipeline (4) passes through the cavity (3) and is fixedly connected to the distributor (2), wherein the distributor (2) and the Brownian gas pipeline (4) are coaxially arranged, wherein the water inlet pipeline (5) and the water return pipeline (6) are respectively fixed on both sides of the Brownian gas pipeline (4), and wherein a spiral member (7) is installed in the distributor (2).

2. The Brownian gas heating nozzle with flame extension function according to claim 1, characterized in that: An inner ring channel (11) and an outer ring channel (12) are provided on the end face of the shell (1), the inner ring channel (11) includes three circles of evenly opened middle holes (1101), the outer ring channel (12) includes two circles of evenly opened outer ring holes (1201), the diameter of the middle holes (1101) is larger than the diameter of the outer ring holes (1201), a first cooling ring (13) is provided on the inner wall of the shell (1), the first cooling ring (13) is located between the inner ring channel (11) and the outer ring channel (12), and a second cooling ring (14) is provided on the inner side of the side wall of the shell (1).

3. The Brownian gas heating nozzle with flame extension function according to claim 2, characterized in that: A first sealing ring (15) is provided on the outer side of the inner ring channel (11) of the inner wall of the shell (1), a second sealing ring (16) is provided on the outer side of the first cooling ring (13), and a third sealing ring (17) is provided on the outer side of the outer ring channel (12). A groove (18) is provided on the bottom of the shell (1), and a mounting groove (19) is uniformly provided on the inner wall of the bottom of the shell (1). A curved surface (1901) is provided on one side of the mounting groove (19), and the groove depth of the curved surface gradually decreases.

4. The Brownian gas heating nozzle with flame extension function according to claim 3, characterized in that: An acceleration chamber (21) is provided at one end of the distributor (2), a limiting groove (2101) is symmetrically provided on the side wall of the acceleration chamber (21), an air supply ring (22) is provided on the outside of the acceleration chamber (21), a main sealing ring (23) is provided on the side wall of the distributor (2), a slot (24) is uniformly provided below the main sealing ring (23), a spring (2401) is installed in the slot (24), a latch (2402) is embedded in the slot (24), an inclined surface (2403) is provided on the latch (2402), a mounting portion (8) is provided on the outer edge of the distributor (2), a mounting boss (81) is provided on the mounting portion (8), the mounting boss (81) can be embedded in the groove (18), and a gas sensor (82) is provided on the outside of the mounting boss (81).

5. The Brownian gas heating nozzle with flame extension function according to claim 4, characterized in that: A main channel (25) is provided in the distributor (2), a throttling channel (26) is provided between the main channel (25) and the acceleration chamber (21), a plurality of evenly arranged secondary channels (27) are provided in the main channel (25), and the secondary channels (27) are connected to the air supply ring (22).

6. The Brownian gas heating nozzle with flame extension function according to claim 5, characterized in that: The flow area ratio of the main channel (25) to the secondary channel (27) is 10:7, the flow area ratio of the middle hole (1101) to the throttling channel (26) is 10:6, and the flow area ratio of the outer ring hole (1201) to the secondary channel (27) is 10:

6.

7. The Brownian gas heating nozzle with flame extension function according to claim 6, characterized in that: Cooling water channels (9) are symmetrically provided on both sides of the main channel (25), the cooling water channels (9) comprising a water inlet channel (91) and a water return channel (92), the water inlet channel (91) comprising a first water inlet branch (9101) and a second water inlet branch (9102), the first water inlet branch (9101) being connected to a first cooling ring (13), and the second water inlet branch (9102) being connected to a second cooling ring (14); The return water channel (92) includes a first return water branch (9201) and a second return water branch (9202), wherein the first return water branch (9201) is connected to the first cooling ring (13), and the second return water branch (9202) is connected to the second cooling ring (14).

8. The Brownian gas heating nozzle with flame extension function according to claim 7, characterized in that: One end of the Brownian air pipe (4) is provided with a pipe joint (41), and the other end of the Brownian air pipe (4) is connected to the main channel (25). One end of the water inlet pipe (5) is also provided with a pipe joint (41), and the other end of the water inlet pipe (5) is connected to the water inlet channel (91). One end of the return water pipe (6) is also provided with a pipe joint (41), and the other end of the return water pipe (6) is close to the bottom of the cavity (3).

9. The Brownian gas heating nozzle with flame extension function according to claim 8, characterized in that: The spiral member (7) comprises a fixed ring (71) and a rotary vane (72) located at the center of the fixed ring (71), and the rotary vane (72) is fixedly installed in the fixed ring (71).

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