CN217057526U - Low NOx gas burner - Google Patents
Low NOx gas burner Download PDFInfo
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- CN217057526U CN217057526U CN202220178554.0U CN202220178554U CN217057526U CN 217057526 U CN217057526 U CN 217057526U CN 202220178554 U CN202220178554 U CN 202220178554U CN 217057526 U CN217057526 U CN 217057526U
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Abstract
The utility model provides a low NO X Gas burner, including the air distributor with connect in the burner block on air distributor top, the burner block comprises burner block upper portion and burner block lower part, burner block upper portion sets up to be the gradually crescent round platform form of top-down sectional area, the arc table on burner block upper portionA plurality of groups of inclined through holes are uniformly formed in the surface of the burner block, the air distributor is fixedly provided with annular gas guns, and the annular gas guns respectively spray gas along the arc surface of the upper part of the burner block and in the inclined through holes; through set up multiunit slope through-hole on burner block upper portion, can provide the gas to the low temperature district of flame to consuming excessive combustion-supporting air, being the round platform form through setting up burner block upper portion, can following the arc surface on burner block upper portion and spout gas to its top, in order to guarantee that the fuel of the high temperature zone of flame is sufficient and excessive, thereby reduces nitrogen oxide's formation and emission.
Description
Technical Field
The utility model relates to a gas burner technical field especially relates to a low NO X A gas burner.
Background
With the continuous development of science and technology and the continuous improvement of social environmental protection consciousness, people have stronger and stronger protection consciousness on the atmosphere, nitrogen oxide is one of main pollution sources causing atmospheric pollution, and as for gas combustion, the main factors of nitrogen oxide formed by gas combustion can be summarized into three points, firstly, the characteristics of fuel are that the more nitrogen elements in the fuel are, the more nitrogen oxide is easily generated; secondly, the technical parameters of the combustion process are that when the combustion temperature reaches a certain critical temperature, the content of the nitrogen oxide rises exponentially along with the temperature; the type of the third combustion apparatus and the burner; the existing gas burner is difficult to ensure the sufficient combustion of gas in the using process, and the excessive combustion-supporting air easily forms nitrogen oxide with the combusted gas in the high-temperature area of flame, so that a large amount of nitrogen oxide is mixed into the discharged gas, the degree of air pollution is increased, the energy waste is also caused, and the combustion cost is increased.
SUMMERY OF THE UTILITY MODEL
The main purpose of the utility model is to solve the problems existing in the prior art and provide a low NO X A gas burner.
In order to solve the technical problem, the utility model adopts the technical scheme that: low NO X Gas burner, including the air distributor with connect in the burner block on air distributor top, the burner block comprises burner block upper portion and burner block lower part, burner block upper portion sets up to be the gradually crescent round platform form of top-down sectional area, multiunit slope through-hole has evenly been seted up on the arc surface on burner block upper portion, the last fixed cyclic annular through-hole that is provided with of air distributorAnd the annular gas gun sprays gas in the arc surface and the inclined through hole on the upper part of the burner block respectively.
Further, cyclic annular gas rifle includes arc return bend, nozzle one and nozzle two, the arc return bend sets up to two sets of, two sets of the arc return bend forms an annular structure, and two sets of the arc return bend is all fixed to be set up on the air distributor, nozzle one and nozzle two all are linked together with the arc return bend, nozzle one sprays the gas to the top of burner block along the arc surface on burner block upper portion, nozzle two is used for spouting into inside the burner block along the slope through-hole with partly gas to spout another part gas to the burner block top along the arc surface on burner block upper portion.
Furthermore, each group of arc-shaped bent pipes are provided with a plurality of groups of first nozzles and a plurality of groups of second nozzles, and each group of the first nozzles and each group of the second nozzles are distributed at intervals.
Furthermore, a plurality of groups of spray holes are formed in the air outlet end of the first nozzle in each group and the air outlet end of the second nozzle in each group.
Furthermore, a groove is formed in the arc curved surface of the lower portion of the burner block and used for containing the first nozzle and the second nozzle.
Furthermore, the air inlet ends of the two groups of arc-shaped bent pipes are communicated with a collecting pipe, and the collecting pipe supplies air to the arc-shaped bent pipes.
Further, an instrument valve is arranged on the collecting pipe, and a pressure gauge is arranged on the instrument valve.
Furthermore, a plurality of groups of spacing blocks are arranged on the arc-shaped surface of the upper portion of the burner block, the spacing blocks are used for evenly dividing the arc-shaped surface of the upper portion of the burner block into a plurality of groups of separation areas, each group of separation areas is internally provided with a group of first nozzles or second nozzles, the first nozzles and the second nozzles are distributed one by one, the first nozzles spray gas to the top of the burner block along the separation areas, one part of spray holes on the second nozzles spray gas to the inside of the burner block along the inclined through holes, and the other part of spray holes spray gas to the top of the burner block along the arc-shaped surface of the upper portion of the burner block.
Furthermore, a flame stabilizing plate is arranged inside the burner block, and a plurality of groups of small holes are uniformly formed in the flame stabilizing plate.
Furthermore, a pilot burner is arranged in the burner block, the air inlet end of the pilot burner is connected with a metal hose, a butterfly bolt is screwed on the air distributor, and the butterfly bolt is used for fixing the pilot burner on the air distributor.
Furthermore, an air distribution channel is connected to the air distributor, and an air door is arranged on the air distribution channel.
The utility model has the advantages and positive effects be: the utility model has simple structure, stability and reliability, and realizes the graded supply of the fuel gas by arranging a plurality of groups of first nozzles and a plurality of groups of second nozzles on the annular gas gun; when the burner is used, flame is formed in an inner cavity at the upper part of the burner block, a plurality of groups of inclined through holes are formed in the upper part of the burner block, and part of spray holes of the nozzle II are used for spraying gas from the inclined through holes to a low-temperature region of the flame, so that the gas and excessive combustion-supporting air are mixed, the sufficient combustion of the gas is ensured, the excessive combustion-supporting air in the low-temperature region of the flame is consumed, the upper part of the burner block is arranged in a circular truncated cone shape with gradually-increased sectional area from top to bottom, the gas is sprayed to the top of the burner block along the arc-shaped surface at the upper part of the burner block by the spray holes of the nozzle I and the part of spray holes of the nozzle II, the gas supply to the high-temperature region of the flame is realized, the gas in the high-temperature region of the flame is ensured to be sufficient and excessive, the formation and the emission of nitrogen oxides in the high-temperature region are reduced, and the consumption of energy is reduced; and the upper part of the burner block forms a partition zone by arranging a plurality of groups of partition blocks, each partition zone is provided with a group of first nozzles or second nozzles which are distributed one by one according to the first nozzles and the second nozzles, so that the mutual interference of gas sprayed among the groups of nozzles is avoided, and the stability of flame is ensured; the multiple groups of spray holes are formed in the air outlet ends of the first nozzle and the second nozzle, so that the first nozzle and the second nozzle uniformly and dispersedly discharge gas, the mixing effect of the gas and air is improved, and the working efficiency of the combustor is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a front view of the annular gas gun;
FIG. 3 is a top view of the annular gas gun;
FIG. 4 is a top view of a burner block.
In the figure: 1. an air distributor; 21. the upper part of the burner block; 22. the lower part of the burner block; 3. an inclined through hole; 4. an annular gas gun; 41. an arc-shaped bent pipe; 42. a first nozzle; 43. a second nozzle; 5. a manifold; 6. a spacer block; 7. a flame stabilizing plate; 8. a beacon light; 9. a metal hose; 10. a butterfly bolt; 11. a wind distribution channel; 12. a damper.
Detailed Description
For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.
As shown in FIGS. 1 and 4, a low NO X Gas burner, include air distributor 1 and connect in the burner block on 1 top of air distributor, the burner block comprises burner block upper portion 21 and burner block lower part 22, burner block upper portion 21 sets up and is the gradually crescent round platform form of top-down sectional area, multiunit slope through-hole 3 has evenly been seted up on the arc surface of burner block upper portion 21, the fixed cyclic annular gas rifle 4 that is provided with on the air distributor 1, cyclic annular gas rifle 4 sprays the gas in the arc surface of burner block upper portion 21 and slope through-hole 3.
Specifically, when the burner block is used, the air distributor 1 provides combustion-supporting air into the burner block, the annular gas gun 4 provides gas, so that the gas and the combustion-supporting air are mixed and then are combusted in the cavity of the burner block to form flame, the inside of the burner block is a low-temperature area of the flame, the top of the burner block is a high-temperature area of the flame, when the air distributor 1 provides the combustion-supporting air, the low-temperature area of the flame is excessive, one part of the gas is sprayed into the inclined through hole 3 formed along the upper part 21 of the burner block by utilizing the annular gas gun 4, the gas is sprayed into the low-temperature area of the flame inside the burner block, so that the gas is mixed with the combustion-supporting air and is combusted in the low-temperature area, part of the excessive combustion-supporting air is consumed, and the annular gas gun 4 sprays the other part of the gas to the top of the burner block along the arc-shaped surface of the upper part 21 of the burner block, so that the gas is sprayed to the high-temperature area of the flame at the top of the burner block and is combusted with the rest of the combustion-supporting air, and the excessive fuel gas is ensured, the nitrogen oxide caused by the excessive combustion air is reduced, and the content of the nitrogen oxide in the discharged gas is reduced, so that the discharge of low nitrogen oxide is realized.
As shown in fig. 2 and 3, the annular gas gun 4 includes an arc elbow 41, a first nozzle 42 and a second nozzle 43, the arc elbow 41 is provided in two groups, the two groups of arc elbows 41 form an annular structure, and the two groups of arc elbows 41 are both fixedly arranged on the air distributor 1, the first nozzle 42 and the second nozzle 43 are both communicated with the arc elbow 41, the first nozzle 42 sprays gas to the top of the burner block along the arc surface of the upper portion 21 of the burner block, the second nozzle 43 is used for spraying a part of gas into the inside of the burner block along the inclined through hole 3, and sprays the other part of gas to the top of the burner block along the arc surface of the upper portion 21 of the burner block, each group of arc elbows 41 is provided with a plurality of groups of first nozzles 42 and a plurality of groups of second nozzles 43, and each group of first nozzles 42 and each group of second nozzles 43 are spaced apart from each other.
Specifically, the gas is respectively conveyed to a first nozzle 42 and a second nozzle 43 by an arc-shaped bent pipe 41 in the annular gas gun 4, wherein the first nozzle 42 sprays the gas into the burner block from an inclined through hole 3 formed in the upper part 21 of the burner block through a part of spray holes, and sprays the gas to a low-temperature area of flame, at the moment, the gas and combustion-supporting air are fully mixed and combusted, the combustion-supporting air in the low-temperature area of the flame in the burner block is consumed, and the phenomenon of excessive combustion-supporting air is avoided; meanwhile, a part of spray holes of the first nozzle 42 and the second nozzle 43 which are communicated with the arc-shaped elbow spray gas to the top of the burner block along the upper part 21 of the burner block, and since part of combustion-supporting air is consumed, the excessive gas is sprayed to a high-temperature area of flame by utilizing the part of spray holes of the first nozzle 42 and the second nozzle 43 so as to fully consume the combustion-supporting air, thereby reducing nitrogen oxides formed after the gas is combusted and saving the consumption of the gas in the high-temperature area of the flame.
As shown in fig. 3, the gas outlet end of each group of first nozzles 42 and the gas outlet end of each group of second nozzles 43 are respectively provided with a plurality of groups of spray holes, so that the gas can be uniformly sprayed out along the gas outlet end of the first nozzles 42 or the gas outlet end of the second nozzles 43, the gas can be fully combusted in a low-temperature region of flame, and the gas can be fully mixed with combustion air in a high-temperature region.
As shown in FIG. 4, the arc curved surface of the lower portion 22 of the burner block is provided with a groove, the groove is used for accommodating the first nozzle 42 and the second nozzle 43, the first nozzle 42 and the second nozzle 43 can be positioned by arranging a plurality of groups of grooves, better firmness is guaranteed when the burner block is used, and the second nozzle 43 can be guaranteed to accurately spray gas into the inclined through hole 3.
As shown in fig. 1, the air inlet ends of the two sets of arc-shaped bent pipes 41 are both communicated with a collecting pipe 5, the arc-shaped bent pipes 41 are supplied with air by the collecting pipe 5, an instrument valve is arranged on the collecting pipe 5, a pressure gauge is arranged on the instrument valve, the collecting pipe 5 can be used for supplying fuel gas into the two sets of arc-shaped bent pipes 41, and the pressure of the fuel gas in the collecting pipe 5 can be measured and controlled by adopting the instrument valve and the pressure gauge.
As shown in fig. 1, a plurality of groups of spacing blocks 6 are arranged on the arc-shaped surface of the burner block upper portion 21, the spacing blocks 6 are used for uniformly dividing the arc-shaped surface of the burner block upper portion 21 into a plurality of groups of separation areas, a group of first nozzles 42 or second nozzles 43 are arranged in each group of separation areas, the first nozzles 42 and the second nozzles 43 are distributed one by one, the first nozzles 42 spray gas to the top of the burner block along the separation areas, a part of spray holes on the second nozzles 43 spray gas to the inside of the burner block along the inclined through holes 3, and the other part of spray holes spray gas to the top of the burner block along the arc-shaped surface of the burner block upper portion 21, so that mutual interference of the gas sprayed between the first nozzles 42 and the second nozzles 43 is avoided, and stable flame is ensured to be formed in the burner block.
As figure 1, the inside of burner block is provided with steady flame board 7, the multiunit aperture has evenly been seted up on steady flame board 7, through setting up steady flame board 7, can make combustion air enter into the burner block in the direction of back to being close to the burner block inner wall flow, make its and gas intensive mixing and burning, and be provided with the multiunit aperture on steady flame board 7, the top that can guarantee steady flame board 7 also can circulate combustion air, thereby maintain the stability of flame, avoid the insufficient phenomenon of burning to appear in flame volume low temperature region.
As shown in fig. 1, the pilot burner block is provided with a pilot lamp 8 therein, the air inlet end of the pilot burner block is connected with a metal hose 9, a butterfly bolt 10 is screwed on the air distributor 1, the butterfly bolt 10 is used for fixing the pilot lamp 8 on the air distributor 1, air is supplied to the pilot lamp 8 through the metal hose 9, and the burner can be ignited by the pilot lamp 8.
As shown in fig. 1, an air distribution channel 11 is connected to the air distributor 1, an air door 12 is arranged on the air distribution channel 11, combustion air is delivered into the air distributor 1 through the air distribution channel 11, and the opening and closing state of the air distribution channel 11 and the flow rate of the combustion air inside the air distribution channel 11 can be controlled by the air door 12.
In addition, can adopt the bolt to fix between arc return bend 41 in the aforesaid and the air distributor 1, wherein the concrete structure and the theory of operation of air distributor 1, manifold 5, changming lamp 8, metal collapsible tube 9, butterfly bolt 10, air distribution passageway 11 and air door 12 all belong to this technical field prior art, the utility model discloses do not change it, the event is no longer described repeatedly.
The utility model has simple structure, stability and reliability, and realizes the graded supply of the fuel gas by arranging a plurality of groups of first nozzles 42 and a plurality of groups of second nozzles 43 on the annular gas gun 4; when the burner is used, flame is formed in the inner cavity of the upper part 21 of the burner block, a plurality of groups of inclined through holes 3 are formed in the upper part 21 of the burner block, and part of spray holes of the nozzle II 43 are used for spraying gas from the inclined through holes 3 to the low-temperature area of the flame, so that the gas and excessive combustion-supporting air are mixed, the sufficient combustion of the gas is ensured, the excessive combustion-supporting air in the low-temperature area of the flame is consumed, the upper part 21 of the burner block is arranged in a cone frustum shape with gradually-increased sectional area from top to bottom, the spray holes of the nozzle I42 and part of spray holes of the nozzle 43 spray the gas to the top of the burner block along the arc-shaped surface of the upper part 21 of the burner block, the gas supply to the high-temperature area of the flame is realized, the gas in the high-temperature area of the flame is ensured to be sufficient and excessive, the formation and the emission of nitrogen oxides in the high-temperature area are reduced, and the consumption of energy is reduced; the upper part 21 of the burner block forms a partition zone by arranging a plurality of groups of partition blocks 6, each partition zone is provided with a group of first nozzles 42 or second nozzles 43, and the first nozzles 42 and the second nozzles 43 are distributed one by one, so that mutual interference of gas ejected from the first nozzles 42 and the second nozzles 43 is avoided, and the stability of flame is ensured; offer multiunit orifice through the end of giving vent to anger at nozzle one 42 and nozzle two 43 to make both evenly just disperse the discharge with the gas, improved the mixed effect of gas with the air, guarantee the work efficiency of combustor, the utility model discloses a concrete work flow as follows:
when the gas burner is used, the air door 12 is opened, so that combustion-supporting air in the air distribution channel 11 enters the air distributor 1 through the air door 12, at the moment, the air distributor 1 conveys the combustion-supporting air to the inside of a burner block, gas is provided in the annular gas gun 4 through the collecting pipe 5, the annular gas gun 4 is used for spraying the gas, a pilot burner 8 is used for igniting mixed gas of the gas and the combustion-supporting air, an arc-shaped bent pipe 41 in the annular gas gun 4 conveys the gas to a first nozzle 42 and a second nozzle 43 respectively, part of spray holes of the first nozzle 42 spray the gas into the inside of the burner block from an inclined through hole 3 formed in the upper part 21 of the burner block, and the gas is sprayed to a low-temperature region of flame, at the moment, the gas and the combustion-supporting air are fully mixed and combusted, and the combustion-supporting air in the low-temperature region of the flame in the burner block is consumed; meanwhile, a part of spray holes of the first nozzle 42 and the second nozzle 43 which are communicated with the arc-shaped elbow spray gas to the top of the burner block along the upper part 21 of the burner block, and a part of spray holes of the first nozzle 42 and the spray holes of the second nozzle 43 spray excessive gas to a high-temperature area of flame, so that combustion-supporting air is fully consumed, and nitrogen oxide formed after the gas is combusted is reduced.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (10)
1. Low NO X Gas combustion ware, including air distributor (1) and connect in the burner block on air distributor (1) top, its characterized in that: the burner block is composed of a burner block upper part (21) and a burner block lower part (22), the burner block upper part (21) is arranged in a round table shape with the sectional area gradually increasing from top to bottom, a plurality of groups of inclined through holes (3) are uniformly formed in the arc surface of the burner block upper part (21), and the burner block is formed by arranging a plurality of groups of inclined through holesAnd the air distributor (1) is fixedly provided with an annular gas gun (4), and the annular gas gun (4) sprays gas along the arc surface of the upper part (21) of the burner block and the inclined through hole (3) respectively.
2. Low NO according to claim 1 X Gas burner, its characterized in that: annular gas gun (4) include arc return bend (41), nozzle (42) and nozzle two (43), arc return bend (41) sets up to two sets of, two sets of arc return bend (41) form an annular structure, and two sets of arc return bend (41) all fixed the setting on air distributor (1), nozzle (42) and nozzle two (43) all are linked together with arc return bend (41), nozzle (42) are along the arc surface of burner block upper portion (21) to the top of burner block and are sprayed the gas, nozzle two (43) are used for spouting into the burner block inside along slope through-hole (3) with partly gas to spout another part gas to the burner block top along the arc surface of burner block upper portion (21).
3. Low NO according to claim 2 X Gas burner, its characterized in that: each group of arc-shaped bent pipes (41) are provided with a plurality of groups of first nozzles (42) and a plurality of groups of second nozzles (43), and each group of first nozzles (42) and each group of second nozzles (43) are distributed at intervals.
4. Low NO according to any of claims 2 or 3 X Gas combustion ware, its characterized in that: and a plurality of groups of spray holes are formed at the air outlet end of the first nozzle (42) and the air outlet end of the second nozzle (43).
5. Low NO according to claim 4 X Gas burner, its characterized in that: and the air inlet ends of the two groups of arc-shaped bent pipes (41) are communicated with a collecting pipe (5), and the collecting pipe (5) supplies air to the arc-shaped bent pipes (41).
6. Low NO according to claim 5 X Gas combustion ware, its characterized in that: an instrument valve is arranged on the collecting pipe (5)A pressure gauge is arranged on the upper part.
7. Low NO according to claim 4 X Gas combustion ware, its characterized in that: the burner block is characterized in that a plurality of groups of spacing blocks (6) are arranged on the arc-shaped surface of the upper portion (21) of the burner block, the spacing blocks (6) are used for uniformly dividing the arc-shaped surface of the upper portion (21) of the burner block into a plurality of groups of separation areas, each group of separation areas is internally provided with a group of first nozzles (42) or second nozzles (43), the first nozzles (42) spray gas to the top of the burner block along the separation areas, part of spray holes in the second nozzles (43) spray gas to the inside of the burner block along the inclined through holes (3), and the other part of spray holes spray gas to the top of the burner block along the arc-shaped surface of the upper portion (21) of the burner block.
8. Low NO according to claim 1 X Gas combustion ware, its characterized in that: the burner block is characterized in that a flame stabilizing plate (7) is arranged inside the burner block, and a plurality of groups of small holes are uniformly formed in the flame stabilizing plate (7).
9. Low NO according to claim 1 X Gas burner, its characterized in that: the burner block is characterized in that a pilot burner (8) is arranged in the burner block, the air inlet end of the burner block is connected with a metal hose (9), a butterfly bolt (10) is screwed on the air distributor (1), and the butterfly bolt (10) is used for fixing the pilot burner (8) on the air distributor (1).
10. Low NO according to claim 1 X Gas combustion ware, its characterized in that: the air distributor (1) is connected with an air distribution channel (11), and an air door (12) is arranged on the air distribution channel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220178554.0U CN217057526U (en) | 2022-01-21 | 2022-01-21 | Low NOx gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220178554.0U CN217057526U (en) | 2022-01-21 | 2022-01-21 | Low NOx gas burner |
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| Publication Number | Publication Date |
|---|---|
| CN217057526U true CN217057526U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220178554.0U Active CN217057526U (en) | 2022-01-21 | 2022-01-21 | Low NOx gas burner |
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| CN (1) | CN217057526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342350A (en) * | 2022-08-16 | 2022-11-15 | 天华院(南京)智能制造有限公司 | Gas burner |
-
2022
- 2022-01-21 CN CN202220178554.0U patent/CN217057526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342350A (en) * | 2022-08-16 | 2022-11-15 | 天华院(南京)智能制造有限公司 | Gas burner |
| CN115342350B (en) * | 2022-08-16 | 2023-08-11 | 天华院(南京)智能制造有限公司 | Gas burner |
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