CN218820374U - Low-nitrogen burner combustion head suitable for multiple working conditions - Google Patents

Abstract

The utility model provides a low nitrogen combustor burner suitable for multiplex condition relates to combustor technical field, aims at solving current combustor and can only adapt to single operating mode, the problem that the gas can not fully burn simultaneously. Including outside assembly and inside assembly, inside assembly installs the inside at outside assembly, outside assembly is including rotating flange, install the burning inner tube on the rotating flange, the front end movable mounting of burning inner tube has the burning urceolus, can adjust the position around the burning urceolus on burning inner tube through the position of adjusting the regulation post to can decide the position in flue gas backward flow district, and the relative position of spinning disk for burning the urceolus, reach the flame length that the burner produced, consequently under the circumstances that the burning urceolus is adjustable, the combustor can adapt to different operating modes and satisfy the requirement that the low nitrogen discharged.

Description

Low-nitrogen burner combustion head suitable for multiple working conditions

Technical Field

The utility model relates to a combustor technical field especially relates to a low NOx burner combustion head suitable for multiplex condition.

Background

With the development of society, environmental issues are increasingly receiving international social attention. In China, the contradiction between energy supply and demand and environmental pollution is more and more prominent, and the frequency of acid rain generation is continuously increased, so that the country pays more attention to the environmental protection industry, and the new flue gas emission standard reduces the emission of smoke dust concentration, S02, NOx and CO. Due to the increase of emission requirements and the large application of various fuel gases by national policies, the development of a burner with low NOx emission becomes a requirement for environmental protection, and a low-nitrogen burner head is a key core component of the burner.

The existing burner adopts diffusion type combustion, in order to ensure the sufficient combustion of fuel, the burner generally adopts a design method of better mixing of fuel and air, the combustion mode has high flame temperature, but NOx is easy to generate, the burner under the conventional structure can only adapt to a single working condition, and meanwhile, the fuel gas can not be sufficiently combusted. Therefore, the design of the low-nitrogen burner head suitable for multiple working conditions is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing burner can only adapt to single working condition and the gas can not be fully combusted in the prior art, and providing a low-nitrogen burner combustion head suitable for multiple working conditions.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a low nitrogen combustor burner suitable for multiplex condition, includes external assembly and inside assembly, the inside at external assembly is installed to inside assembly, external assembly is including rotating the flange, the burning inner tube is installed to the front end of rotating the flange, the front end movable mounting of burning inner tube has the burning urceolus, inside assembly is including the seat of admitting air, the intake pipe is installed to the front end of the seat of admitting air, the distribution seat of giving vent to anger is installed to the front end of intake pipe, still install the spinning disk in the distribution seat of giving vent to anger.

Preferably, the combustion inner tube passes through fastener fixed connection on rotatory flange, fixedly connected with pulling-on piece on the inner wall of combustion outer tube, wear to be equipped with the regulation post in the rotatory flange, the setting can be dismantled in rotatory flange to the regulation post.

Preferably, the rotary flange is provided with a long slotted hole, the pulling-on piece is provided with threaded holes, and the threaded holes are distributed on the pulling-on piece in a plurality of groups.

Preferably, an ignition needle is further installed in the air outlet distribution seat, and the front end of the ignition needle is located at the rear end of the cyclone disk.

Preferably, the front end of the combustion outer barrel adopts a conical necking design, a plurality of groups of inclined grooves are arranged on the spiral-flow disk, and small holes are further formed in the side face of the spiral-flow disk.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, in use, can adjust the front and back position of burning urceolus on the burning inner tube through the position of regulation post, thereby can decide the position of flue gas backward flow district, and the relative position of spinning disk for burning the urceolus, reach the flame length that the burner produced, consequently under the circumstances that the burning urceolus is adjustable, the combustor can adapt to different operating modes and satisfy the requirement that low nitrogen discharged, compare the fixed structural design of conventional burning section of thick bamboo, the combustor can satisfy burning under the different operating modes, the problem that current combustor can only adapt to single operating mode has been solved, the gas can not fully burn simultaneously.

2. The utility model discloses in, in use, through the method that the big inclination was taken to the urceolus front end of burning, make combustion-supporting air spout with higher speed from this to form a negative pressure zone at the burning section of thick bamboo front end, the flue gas can flow back around the whirl dish front end under the negative pressure effect, thereby can mix in the middle of the gas, then slow down gas burning speed, reduce nitrogen oxide's formation.

Drawings

FIG. 1 is a partial cross-sectional view of a low-nitrogen burner head suitable for multiple operating modes;

fig. 2 is the utility model discloses a cross-sectional view of pulling-on piece in low nitrogen combustor burner suitable for multiplex condition.

Illustration of the drawings: 1. an outer assembly; 101. rotating the flange; 102. a combustion inner barrel; 103. burning the outer cylinder; 104. a long slot hole; 2. an inner assembly; 201. an air inlet seat; 202. an air inlet pipe; 203. an air outlet distribution seat; 204. a spinning disk; 205. an oblique groove; 206. a small hole; 3. a pull tab; 301. a threaded hole; 4. an adjustment column; 5. an ignition needle.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

The utility model provides a low NOx burner combustion head suitable for multiplex condition, including external assembly 1 and internal assembly 2, internal assembly 2 installs in external assembly 1's inside, external assembly 1 is including rotating flange 101, the burning inner tube 102 is installed to rotating flange 101's front end, the front end movable mounting of burning inner tube 102 has burning urceolus 103, internal assembly 2 is including the seat 201 that admits air, the intake pipe 202 is installed to the front end of the seat 201 that admits air, the distribution seat 203 of giving vent to anger is installed to the front end of intake pipe 202, still install spinning disk 204 in the distribution seat 203 of giving vent to anger, still install ignition needle 5 in the distribution seat 203 of giving vent to anger, the front end of ignition needle 5 is located spinning disk 204's rear end.

The position through adjusting regulation post 4 can adjust the front and back position of burning urceolus 103 on burning inner tube 102, thereby can decide the position in flue gas backward flow district, and spinning disk 204 is for burning urceolus 103 relative position, reach the flame length that the burner produced, consequently under the circumstances that burning urceolus 103 is adjustable, the combustor can adapt to different operating modes and satisfy the requirement that low nitrogen discharged, compare the fixed structural design of conventional burning section of thick bamboo, the combustor can satisfy burning under the different operating modes, gas can make full use of in the in-service use process.

Example 1

As shown in fig. 1-2, the combustion inner cylinder 102 is fixedly connected to a rotary flange 101 through a fastener, a pull tab 3 is fixedly connected to the inner wall of the combustion outer cylinder 103, an adjusting column 4 penetrates through the rotary flange 101, the adjusting column 4 is detachably connected to the rotary flange 101, a long slot hole 104 is formed in the rotary flange 101, a plurality of groups of threaded holes 301 are formed in the pull tab 3, the threaded holes 301 are distributed in the pull tab 3, the adjusting column 4 penetrates through the long slot hole 104 in the rotary flange 101, then the adjusting column 4 penetrates through the threaded hole 301 in the pull tab 3, and finally the fixing of the pull tab 3 is completed, and finally the fixing work of the combustion outer cylinder 103 is completed,

a plurality of groups of inclined grooves 205 are arranged on the cyclone disk 204, and through the arrangement of the inclined grooves 205, the wind passing through the inclined grooves 205 forms vortex wind, so that combustion air and fuel gas are fully mixed, and stable central flame is formed at the cyclone disk 204; the ignition needle 5 and the swirl disc 204 are combined to form a burner head,

the front end of the combustion outer cylinder 103 adopts a conical necking design, most combustors adopt a back mixing mode for gas and air, so that the gas is gradually combusted, the condition of local high temperature in a hearth can be effectively solved, meanwhile, the front end of the combustion outer cylinder 103 adopts a large-inclination method, so that combustion-supporting air is sprayed out from the front end of the combustion outer cylinder in an accelerated mode, a negative pressure area is formed at the front end of the combustion outer cylinder, smoke can flow back to the periphery of the front end of the cyclone disk 204 under the action of negative pressure, so that the smoke can be mixed into the gas, the combustion speed of the gas is slowed down, and the generation of nitrogen oxides is reduced;

the effect achieved by the whole embodiment 1 is that, in use, the front and back positions of the combustion outer cylinder 103 on the combustion inner cylinder 102 can be adjusted by adjusting the position of the adjusting column 4, so that the position of the flue gas recirculation zone and the relative position of the swirl disc 204 with respect to the combustion outer cylinder 103 can be determined. When the combustion outer cylinder 103 is adjusted forwards, the smoke backflow area correspondingly moves forwards, the combustion head can retract into the combustion outer cylinder 103, when the combustion head works, the gas sprayed out of the small hole 206 is mixed with air in advance, and the mixed gas is mixed with the smoke in the backflow area, so that the flame length can be reduced; on the contrary, when the combustion outer cylinder 103 is adjusted backwards, the smoke backflow area is correspondingly moved backwards, the gas head can extend out of the combustion outer cylinder 103, when the combustion head works, the gas sprayed from the small holes 206 is mixed with air after being delayed, and the mixed gas is mixed with the smoke in the backflow area, so that the flame length can be lengthened, and therefore, under the condition of adjusting the position of the combustion outer cylinder 103, the combustor can adapt to different working conditions and meet the requirement of low-nitrogen emission.

The working principle is as follows: the position of the adjusting column 4 can be adjusted to adjust the front-rear position of the combustion outer cylinder 103 on the combustion inner cylinder 102, so that the position of the flue gas recirculation zone and the relative position of the swirl disc 204 with respect to the combustion outer cylinder 103 can be determined. When the combustion outer cylinder 103 is adjusted forwards, the smoke backflow area correspondingly moves forwards, the combustion head can retract into the combustion outer cylinder 103, when the combustion head works, the gas sprayed out of the small hole 206 is mixed with air in advance, and the mixed gas is mixed with the smoke in the backflow area, so that the flame length can be reduced; conversely, when the combustion outer cylinder 103 is adjusted backwards, the smoke return area is correspondingly moved backwards, and the gas head can extend out of the combustion outer cylinder 103.

To sum up, the utility model discloses a position of regulation post can be adjusted the burning urceolus position around on the burning inner tube, thereby can decide the position in flue gas backward flow district, and the whirl dish is for the relative position of burning urceolus, reach the flame length that the burner produced, consequently under the circumstances that the burning urceolus is adjustable, the combustor can adapt to different operating modes and satisfy the requirement that low nitrogen discharged, compare the fixed structural design of conventional burning section of thick bamboo, the combustor can satisfy burning under the different operating modes, gas can make full use of in the in-service use in-process, most combustor all lets gas and air take the after-mixing formula, make the gradual burning of gas, can effectively solve the inside local high temperature condition of furnace, the method at big inclination is taken to burning urceolus front end simultaneously, make combustion-supporting air spout with higher speed from this place, and form a negative pressure district at the burning section of thick bamboo front end, the flue gas can slow down the whirl dish front end around, thereby can mix in the middle of the gas, then gas burning speed, reduce nitrogen oxide's formation.

It should be noted that, the utility model discloses the multiple standard component that uses all can be obtained from the market, and nonstandard component then can customize very much, the utility model discloses the connected mode that adopts such as bolted connection, welding etc. also are very common means in the mechanical field, and the inventor is no longer repeated here.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a low nitrogen combustor burner suitable for multiplex condition, includes external assembly (1) and inside assembly (2), inside assembly (2) are installed in the inside of external assembly (1), its characterized in that, outside assembly (1) is including rotating flange (101), burning inner tube (102) are installed to the front end of rotating flange (101), the front end movable mounting who burns inner tube (102) has burning urceolus (103), inside assembly (2) are including air inlet seat (201), intake pipe (202) are installed to the front end of air inlet seat (201), air outlet distribution seat (203) are installed to the front end of intake pipe (202), still install whirl dish (204) in air outlet distribution seat (203).

2. The burner head of the low-nitrogen burner suitable for the multiple working conditions is characterized in that the combustion inner barrel (102) is fixedly connected to a rotating flange (101) through a fastener, a pulling sheet (3) is fixedly connected to the inner wall of the combustion outer barrel (103), an adjusting column (4) penetrates through the rotating flange (101), and the adjusting column (4) is detachably arranged in the rotating flange (101).

3. The burner head of the low-nitrogen burner suitable for the multiple working conditions is characterized in that the rotating flange (101) is provided with a long slotted hole (104), the pull sheet (3) is provided with threaded holes (301), and the threaded holes (301) are distributed on the pull sheet (3) in a plurality of groups.

4. The burner head of the low-nitrogen burner suitable for multiple working conditions as claimed in claim 1, wherein an ignition needle (5) is further installed in the outlet distribution base (203), and the front end of the ignition needle (5) is located at the rear end of the swirl disk (204).

5. The burner head of the low-nitrogen burner suitable for the multiple working conditions as claimed in claim 1, wherein the front end of the outer burning barrel (103) is designed to be a tapered necking type, a plurality of groups of inclined grooves (205) are arranged on the swirl disc (204), and small holes (206) are further arranged on the side surface of the swirl disc (204).

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