CN205332210U - Module boiler low NOx burner - Google Patents
Module boiler low NOx burner Download PDFInfo
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- CN205332210U CN205332210U CN201620110287.8U CN201620110287U CN205332210U CN 205332210 U CN205332210 U CN 205332210U CN 201620110287 U CN201620110287 U CN 201620110287U CN 205332210 U CN205332210 U CN 205332210U
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- gas
- combustion tube
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- premix
- distributing pipe
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Abstract
The utility model discloses a module boiler low NOx burner, including the combustor body, be equipped with the gas -distributing pipe on the combustor body, a plurality of combustor unit has connected gradually on the gas -distributing pipe, manage and the combustion tube in the chamber of mixing in advance that an arbitrary combustor unit is connected including the order, the gas -distributing pipe spouts the one end into mixing the chamber pipe in advance through the air nozzle with the gas, and bring the air into through the horn mouth and mix in advance, mix the other end of chamber pipe in advance and connect the combustion tube, be equipped with a plurality of equivalence gas distribution hole on the combustion tube pipe wall, the gas on by the gas -distributing pipe air nozzle spout mix in advance the chamber intraductal with the complete homogeneous mixing of atmosphere after get into the combustion tube, through even blowout in equivalent gas distribution hole and burning in the combustion tube. The utility model discloses, compact structure, air mix effectually in advance, and the combustion tube gas distribution is even, high temperature resistant rust -resistant anticorrosion, by a wide margin reduction nitrogen oxide's effluent concentration, be applicable to multiple atmospheric combustion boiler and reach the low nitrogen of flue gas and discharge the environment.
Description
Technical field
This utility model relates to the burner in building heating field, is specifically related to a kind of module boiler low NO。
Background technology
Eighties of last century China's nineties declares a war to atmospheric pollution, North China has carried out extensive coal and has changed gas boiler transformation, although the sulfur dioxide that coal-burning boiler causes and dust emission obtain a degree of control and minimizing, but the large area of outburst in the end of the year 2012 and repeatedly repeat haze and define new Heavy environmental pollution。For tackling this challenge, the Chinese government has put into effect air contaminant treatment policy most stringent in history and discharge standard (up-to-date discharge standard had been put into effect in Beijing in 2015), reduces the problem that the oxynitride discharge of gas fired-boiler has become energy-conserving and environment-protective field in the urgent need to address。
At present that the transformation one-time investment of boiler-burner and operating cost is expensive, it is difficult to be accepted by a lot of medium-sized and small enterprises。Most economical effective approach is to use for reference the experience of American-European industrially developed country, carries out the low nitrogen burning of gas fired-boiler, oxynitride formation boiler in is greatly reduced from source。
Utility model content
Technical problem to be solved in the utility model is the problem that the burner in existing gas fired-boiler needs the formation of oxynitride is greatly reduced from source。
In order to solve above-mentioned technical problem, this utility model be employed technical scheme comprise that a kind of module boiler low NO of offer, including burner body, described burner body is provided with gas-distributing pipe, described gas-distributing pipe is connected with in turn several burner unit, any one of burner unit includes the premix lumen and the combustion tube that are linked in sequence, combustion gas is sprayed into one end of described premix lumen by described gas-distributing pipe by air nozzle, and bring air pre-mixing into by horn mouth, the other end of described premix lumen connects described combustion tube, described combustion tube tube wall is provided with several equivalence qi-emitting holes, combustion gas by described air nozzle spray in described premix lumen with air Homogeneous phase mixing, described combustion tube is entered after mixing, and uniformly spray burning by described equivalence qi-emitting hole。
In such scheme, being provided with front end panel between described premix lumen and described combustion tube, the outside of described combustion tube is provided with rear bearing sheet, described front end panel and described rear bearing sheet and all adopts stainless steel。
In such scheme, inside described combustion tube, it is provided with the pad of stainless steel near the side of described front end panel。
In such scheme, it is bolted between described rear bearing sheet and described combustion tube。
In such scheme, the inlet end of described premix lumen is provided with in trumpet-shaped air inlet。
In such scheme, described burner body be respectively provided on two sides with the fixing hole for being connected with boiler, be interval with observation port and igniter preformed hole in the middle part of described burner body。
In such scheme, in described combustion tube, it is provided with middle transition hole。
In such scheme, the middle part of described gas-distributing pipe connects an air inlet pipe。
This utility model, combustion gas enters premix lumen from gas-distributing pipe, is sufficiently mixed at premix lumen internal combustion gas and air, enters combustion tube after mixing, uniformly spray through equivalence qi-emitting hole and burn in combustion tube, compact conformation, air pre-mixing is effective, combustion tube uniform air distribution, thermostable rustproof anticorrosion, life-span is long, significantly reduces the concentration of emission of nitrogen oxides, it is adaptable to multiple atmospheric burning type boiler reaches the low-nitrogen discharged environment of flue gas。
Accompanying drawing explanation
Fig. 1 is front view of the present utility model；
Fig. 2 is top view of the present utility model；
Fig. 3 be in Fig. 2 A-A to sectional view。
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail。
As shown in Figure 2 and Figure 3, this utility model provides a kind of module boiler low NO, including burner body, burner body is provided with gas-distributing pipe 10, the middle part of gas-distributing pipe 10 connects an air inlet pipe 11, and air inlet pipe 11 connects outside air feed equipment, and combustion gas enters in gas-distributing pipe 10 from air inlet pipe 11, being connected with several burner unit on gas-distributing pipe 10 in turn, combustion gas is supplied to each burner unit uniformly respectively by air nozzle in gas-distributing pipe 10。
Any one burner unit includes the premix lumen 20 and the combustion tube 30 that are linked in sequence, gas-distributing pipe 10 connects one end of premix lumen 20 by air nozzle 14, combustion gas sprays in premix lumen 20 by air nozzle 14, the inlet end of premix lumen 20 is provided with in trumpet-shaped air inlet 21, trumpet-shaped air inlet is beneficial to combustion gas and enters, ambient atmosphere is also into, in premix lumen 20, being sufficiently mixed with the combustion gas in premix lumen 20 simultaneously。
The other end of premix lumen 20 connects combustion tube 30, and it is additionally provided with middle transition hole in premix lumen 20 other end, combustion gas after being thoroughly mixed with air enters combustion tube 30 from the other end of premix lumen 20 by intermediate transition hole, combustion tube 30 tube wall is provided with several equivalence qi-emitting holes 33, the gas being thoroughly mixed can be uniformly distributed by equivalence qi-emitting hole 33 effectively, and uniformly spray burning by equivalence qi-emitting hole 33, combustion even, temperature is at 800 degrees centigrade, can there is the abundant after-flame pollutant Hydrocarbon of enough time, avoid the generation of Nox simultaneously, significantly reduce the concentration of emission of nitrogen oxides。
Being provided with front end panel 12 between premix lumen 20 and combustion tube 30, the outside of combustion tube 30 is provided with rear bearing sheet 13, is bolted between rear bearing sheet 12 and combustion tube 30。Front end panel 12 and rear bearing sheet 13 are used for supporting all of burner unit, improve stability time it uses, and front end panel 12 and rear bearing sheet 13 all adopt stainless steel, stainless steel thermostable rustproof anticorrosion, long service life。In order to prevent mixing gas from from combustion tube 30, the process of equivalence qi-emitting hole ejection producing gas leak phenomenon, inside combustion tube 30, it is provided with the pad 22 of stainless steel near the side of front end panel 12。
Shown in Fig. 1, burner body be respectively provided on two sides with fixing hole 17, realize burner body by fixing hole 17 to be connected with boiler, observation port 16 and igniter preformed hole 15 it is interval with in the middle part of burner body, can combustion position within Real Time Observation by observation port 16, it is to avoid the generation of potential safety hazard。
This utility model, by arranging premix lumen 20, any one burner unit is divided into deep or light two strands First air, and concentrated phase (entrance of premix lumen) is interior closer to flame kernel, and light phase (partly-premixed lumen mixing gas and partial fume backflow) presses close to furnace wall outside。Concentrated phase is when interior catching fire, flame temperature is of a relatively high, but oxygen ratio is relatively fewer, therefore the probability of the nitrogen oxides generated reduces relatively, (concentrated phase is the air mixture primary combustion out of premix lumen, light phase is the second-time burning after premix chamber air mixture out refluxes with partial fume) light phase is outside, oxygen ratio is relatively large, but due to from flame high-temperature area farther out, temperature is relatively low, therefore the generation of nitrogen oxides is also less, thus significantly reducing the discharged nitrous oxides concentration of gas module boiler。
This utility model, combustion gas enters premix lumen from gas-distributing pipe, is sufficiently mixed at premix lumen internal combustion gas and air, enters combustion tube after mixing, uniformly spray through equivalence qi-emitting hole and burn in combustion tube, compact conformation, air pre-mixing is effective, combustion tube uniform air distribution, thermostable rustproof anticorrosion, life-span is long, significantly reduces the concentration of emission of nitrogen oxides, it is adaptable to multiple low carbon, low nitrogen burning situation。
This utility model is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present utility model, and every have same or like technical scheme with this utility model, each falls within protection domain of the present utility model。
Claims (8)
1. a module boiler low NO, including burner body, described burner body is provided with gas-distributing pipe, described gas-distributing pipe is connected with in turn several burner unit, it is characterized in that, any one of burner unit includes the premix lumen and the combustion tube that are linked in sequence, combustion gas is sprayed into one end of described premix lumen by described gas-distributing pipe by air nozzle, and bring air pre-mixing into by horn mouth, the other end of described premix lumen connects described combustion tube, several equivalence qi-emitting holes it are provided with in described combustion tube, combustion gas is sprayed into Homogeneous phase mixing complete in air in described premix lumen by described air nozzle, described combustion tube is entered after mixing, and uniformly spray burning by described equivalence qi-emitting hole。
2. a kind of module boiler low NO as claimed in claim 1, it is characterized in that, being provided with front end panel between described premix lumen and described combustion tube, the outside of described combustion tube is provided with rear bearing sheet, described front end panel and described rear bearing sheet and all adopts stainless steel。
3. a kind of module boiler low NO as claimed in claim 2, it is characterised in that be provided with the pad of stainless steel inside described combustion tube near the side of described front end panel。
4. a kind of module boiler low NO as claimed in claim 2, it is characterised in that be bolted between described rear bearing sheet and described combustion tube。
5. a kind of module boiler low NO as claimed in claim 1, it is characterised in that the inlet end of described premix lumen is provided with in trumpet-shaped air inlet。
6. module boiler low NO as claimed in claim 1 a kind of, it is characterised in that described burner body be respectively provided on two sides with the fixing hole for being connected with boiler, be interval with observation port and igniter preformed hole in the middle part of described burner body。
7. a kind of module boiler low NO as claimed in claim 1, it is characterised in that be provided with middle transition hole in described combustion tube。
8. a kind of module boiler low NO as claimed in claim 1, it is characterised in that the middle part of described gas-distributing pipe connects an air inlet pipe。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620110287.8U CN205332210U (en) | 2016-02-03 | 2016-02-03 | Module boiler low NOx burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620110287.8U CN205332210U (en) | 2016-02-03 | 2016-02-03 | Module boiler low NOx burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205332210U true CN205332210U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620110287.8U Active CN205332210U (en) | 2016-02-03 | 2016-02-03 | Module boiler low NOx burner |
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| Country | Link |
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| CN (1) | CN205332210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566948A (en) * | 2019-10-16 | 2019-12-13 | 杭州富尔顿热能设备有限公司 | A burner for boiler transformation |
-
2016
- 2016-02-03 CN CN201620110287.8U patent/CN205332210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566948A (en) * | 2019-10-16 | 2019-12-13 | 杭州富尔顿热能设备有限公司 | A burner for boiler transformation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |