CN207716414U - A kind of premixed gas porous media combustor axially and radially surely fired - Google Patents
A kind of premixed gas porous media combustor axially and radially surely fired Download PDFInfo
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- CN207716414U CN207716414U CN201820036979.1U CN201820036979U CN207716414U CN 207716414 U CN207716414 U CN 207716414U CN 201820036979 U CN201820036979 U CN 201820036979U CN 207716414 U CN207716414 U CN 207716414U
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Abstract
A kind of premixed gas porous media combustor axially and radially surely fired, it is related to a kind of porous media combustor, the utility model burner includes insulating layer, combustion zone porous media, combustion stabilizing body, surely fires porous plate, anti-backfire area porous media, homogenizing plate, premixer, fuel gas inlet, air intake.Fuel gas inlet and air intake are connect with premixer, and premixer is sequentially arranged homogenizing plate, anti-backfire area porous media, steady combustion porous plate and combustion zone porous media upwards.Combustion stabilizing body is bullet, using high temperature resistant austenitic steel material, is placed in burner axle center.The aperture of steady combustion porous plate is radially sequentially reduced outward.Steady combustion porous plate is sleeved on using high temperature resistant austenitic steel material on combustion stabilizing body.Combustion stabilizing body and steady combustion porous plate improve the uniformity of Load Distribution in porous media on axially and radially direction, improve the stability of premixed flame, improve efficiency of combustion, reduce pollutant emission.
Description
Technical field
The utility model is related to a kind of porous medium combusting devices, more particularly to a kind of premix axially and radially surely fired
Gas porosity medium burner.
Background technology
Energy shortages and environmental pollution are to restrict China's economic development main problem, therefore improve energy utilization rate, are realized
The clean utilization of the energy is the important channel for solving problem above.Multi-hole medium combustion is a kind of gas in good heat conductivity, resistance to
Special combustion system in the porous material of high temperature, compared with traditional unpolarized burning flame, multi-hole medium combustion technology table
Unique advantage is revealed, has been mainly manifested in：Burn rate and combustion intensity are high；Combustion zone field width, uniformity of temperature profile；Burning
Efficient, pollutant emission is low；Poor Flammability limits is widened, load regulation rate is big；Compact-sized, equipment volume is small.
There are many multi-hole medium combustion technology application currently on the market, and the patent of invention of Publication No. CN103672895B is " super
Low heat value gas combustion burner ", burner are provided with the preheating that preheating chamber is used for premixed gas, provided with combustion chamber for premixing
Gas burns, and multi-hole medium combustion and heat transfer characteristic is made full use of to realize the burning of super-low calorific value gas.Publication No. 101158469
Patent of invention " a kind of sectional type porous ceramic dielectric gas fuel combusting device ", burner is sequentially arranged from the bottom to top
Small porosity porous media and macroporosity porous media, premixed gas can fire near two kinds of porosity material interfaces
It burns, has the function of stablizing flame front.The patent of invention " gradual-change porous-medium burner " of publication number CN2484481Y,
Burner is sequentially arranged different porosities porous media material in an axial direction, can stablize flame front, improves the combustion of burner
Efficiency is burnt, the discharge of pollutant is reduced.
In the application of the above multi-hole medium combustion technology, Railway Project is faced：The shakiness of premixed flame in porous media
Determine problem, both fuel gas run-off the straight, rupture and flame-out etc. during multi-hole medium combustion；Since porous media is distinctive
The problem of structure unevenness causes to cause burner internal Load Distribution uneven, and combustion instability, pollutant emission increases；Combustion
Nearby porosity is higher than burner centre region to burner side wall, causes premixed gas more to consume near side wall, causes to dissipate
Heat loss increases.These instability problems seriously restrict the popularization of multi-hole medium combustion technology.
Invention content
The purpose of this utility model is to provide a kind of premixed gas porous media combustors axially and radially surely fired, should
Burner is increased the accumulation of heat in burner axis region and is strengthened in axial direction by the air flow method on change burning device radial section
Heat transfer, change the Load Distribution of burner internal, improve the stability of premixed flame, solve more in the prior art
The unstable problem of hole medium premixed flame, improves porous media combustor efficiency of combustion, reduces pollutant discharge amount.
The purpose of this utility model is achieved through the following technical solutions：
A kind of premixed gas porous media combustor axially and radially surely fired, the burner include insulating layer, burning
Area's porous media, combustion stabilizing body, surely combustion porous plate, anti-backfire area porous media, homogenizing plate, premixer, fuel gas inlet, air enter
Mouthful；Fuel gas inlet and air intake are connect with premixer, premixer set gradually upwards homogenizing plate, anti-backfire area porous media,
Steady combustion porous plate and combustion zone porous media；Combustion stabilizing body is bullet, is placed in burner axle center；Steady combustion porous plate is sleeved on steady combustion
On body；Porous panel aperture is surely fired radially to be sequentially reduced outward.
A kind of premixed gas porous media combustor axially and radially surely fired, the steady combustion porous plate are at least
1.
The advantages of the utility model is with effect：
1, the utility model arranges combustion stabilizing body in burner axle center, for accumulating premixed gas in combustion zone porous media
The heat of middle release improves the uniformity of burner internal Load Distribution；
2, the combustion stabilizing body of the utility model setting is bullet, and lower part accumulation heat is more, while material is difficult to understand using high temperature resistant
Family name's body steel, combustion stabilizing body can transmit heat to direction of flow, heat and the premixed gas that ignites, improve porous media premixed flame
Stability widens burner load regulation range；
3, the utility model is provided with steady combustion porous plate, and aperture is radially sequentially reduced outward, can increase burning
The thermic load at device center improves premixed flame stability；
The steady combustion porous plate of the utility model setting is sleeved on combustion stabilizing body, and material, can be with using high temperature resistant austenitic steel
By neighbouring porous media and air-flow heat transfer to combustion stabilizing body, strengthen the porous media premixed flame surely combustion effect of combustion stabilizing body.
Description of the drawings
Fig. 1 is the structural schematic diagram of utility model device.
Wherein：1, insulating layer, 2, combustion zone porous media, 3, combustion stabilizing body, 4, surely fire porous plate, 5, porous Jie in anti-backfire area
Matter, 6, homogenizing plate, 7, premixer, 8, fuel gas inlet, 9, air intake.
Specific implementation mode
The utility model is described in detail in illustrated embodiment below in conjunction with the accompanying drawings.
A kind of premixed gas porous media combustor axially and radially surely fired of the utility model, including insulating layer, burning
Area's porous media, combustion stabilizing body, surely combustion porous plate, anti-backfire area porous media, homogenizing plate, premixer, fuel gas inlet, air enter
Mouthful.The fuel gas inlet and air intake is connect with premixer, and it is porous that premixer is sequentially arranged homogenizing plate, anti-backfire area upwards
Medium, steady combustion porous plate and combustion zone porous media；The combustion stabilizing body is bullet, is placed in burner axle center；Described is steady
The aperture of combustion porous plate is radially sequentially reduced outward.Steady combustion porous plate is at least 1.Steady combustion porous plate is sleeved on steady combustion
On body.The material of combustion stabilizing body is high temperature resistant austenitic steel.The material of steady combustion porous plate is high temperature resistant austenitic steel.
Embodiment
The concrete structure of the utility model is described in detail according to Fig. 1.The utility model uses combustion gas and Combustion of Premixed
Mode, including insulating layer, combustion zone porous media, combustion stabilizing body, surely fire porous plate, be anti-backfire area porous media, homogenizing plate, pre-
Mixed room, fuel gas inlet, air intake.Fuel gas inlet and air intake are connect with premixer, and premixer is sequentially arranged upwards flows
Plate, anti-backfire area porous media, steady combustion porous plate and combustion zone porous media.Combustion stabilizing body is bullet, using high temperature resistant Ovshinsky
Body steel material is placed in burner axle center.The aperture of steady combustion porous plate is radially sequentially reduced outward.Steady combustion porous plate, is adopted
With high temperature resistant austenitic steel material, it is sleeved on combustion stabilizing body.Combustion gas and air are more by anti-backfire area after being mixed in premixer
Hole medium carries out premixed combustion into combustion zone porous media.Anti-backfire area porous media uses small porosity porous media, leads to
Air velocity in raising porous media is crossed, prevents from being tempered.Burner axle center arranges combustion stabilizing body, is being fired for accumulating premixed gas
The heat discharged in area's porous media is burnt, increases burner axle center thermic load nearby, improves burner internal thermic load uniformity,
Reduce porous media premixed gas flame instability phenomenon.Combustion stabilizing body is bullet, and lower part accumulation heat is more, while material uses
High temperature resistant austenitic steel, combustion stabilizing body can transmit heat to direction of flow, heat and the premixed gas that ignites, raising porous media are pre-
The stability of mixed flame, widens burner load regulation range.The steady combustion porous plate of burner setting, aperture is radially
It is sequentially reduced outward, burner centre air flow rate nearby can be increased, reduce the air flow rate of burner near wall, to
Increase the thermic load of burner centre, improves premixed flame stability.Steady combustion porous plate is sleeved on combustion stabilizing body, and material is using resistance to
High temperature austenite steel, can be by the steady porous media fired near porous plate and air-flow heat transfer to combustion stabilizing body, to enhance
Surely combustion acts on the premixed gas flame of combustion stabilizing body.Burner insulating layer can effectively reduce radiation loss, improve the thermal efficiency.
Claims (2)
1. a kind of premixed gas porous media combustor axially and radially surely fired, which is characterized in that the burner includes protecting
Warm layer（1）, combustion zone porous media（2）, combustion stabilizing body（3）, surely fire porous plate（4）, anti-backfire area porous media（5）, homogenizing plate
（6）, premixer（7）, fuel gas inlet（8）, air intake（9）；Fuel gas inlet（8）And air intake（9）With premixer（7）Even
It connects, premixer（7）Set gradually homogenizing plate upwards（6）, anti-backfire area porous media（5）, surely fire porous plate（4）It is more with combustion zone
Hole medium（2）；Combustion stabilizing body（3）For bullet, it is placed in burner axle center；Steady combustion porous plate（4）It is sleeved on combustion stabilizing body（3）On；Surely
Fire porous plate（4）Aperture be radially sequentially reduced outward.
2. a kind of premixed gas porous media combustor axially and radially surely fired according to claim 1, feature exist
In the steady combustion porous plate（4）At least 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820036979.1U CN207716414U (en) | 2018-01-10 | 2018-01-10 | A kind of premixed gas porous media combustor axially and radially surely fired |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820036979.1U CN207716414U (en) | 2018-01-10 | 2018-01-10 | A kind of premixed gas porous media combustor axially and radially surely fired |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207716414U true CN207716414U (en) | 2018-08-10 |
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| CN201820036979.1U Expired - Fee Related CN207716414U (en) | 2018-01-10 | 2018-01-10 | A kind of premixed gas porous media combustor axially and radially surely fired |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180475A (en) * | 2018-01-10 | 2018-06-19 | 沈阳工程学院 | A kind of premixed gas porous media combustor axially and radially surely fired |
| CN111706861A (en) * | 2020-06-29 | 2020-09-25 | 江苏大学 | Spiral-flow type air inlet porous medium burner for micro-thermal photoelectricity |
| CN112443839A (en) * | 2020-12-11 | 2021-03-05 | 杭州电子科技大学 | Self-rolling secondary air-suction multi-injection premixing porous medium combustion radiator and combustion method |
| CN113739143A (en) * | 2021-08-19 | 2021-12-03 | 江苏大学 | Self-adaptive rotational flow premixing burner |
-
2018
- 2018-01-10 CN CN201820036979.1U patent/CN207716414U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180475A (en) * | 2018-01-10 | 2018-06-19 | 沈阳工程学院 | A kind of premixed gas porous media combustor axially and radially surely fired |
| CN108180475B (en) * | 2018-01-10 | 2023-08-22 | 沈阳工程学院 | Premixed gas porous medium burner capable of stabilizing combustion axially and radially |
| CN111706861A (en) * | 2020-06-29 | 2020-09-25 | 江苏大学 | Spiral-flow type air inlet porous medium burner for micro-thermal photoelectricity |
| CN111706861B (en) * | 2020-06-29 | 2022-07-22 | 江苏大学 | Spiral-flow type air inlet porous medium burner for micro-thermal photoelectricity |
| CN112443839A (en) * | 2020-12-11 | 2021-03-05 | 杭州电子科技大学 | Self-rolling secondary air-suction multi-injection premixing porous medium combustion radiator and combustion method |
| CN113739143A (en) * | 2021-08-19 | 2021-12-03 | 江苏大学 | Self-adaptive rotational flow premixing burner |
| CN113739143B (en) * | 2021-08-19 | 2024-04-09 | 江苏大学 | Self-adaptive swirl premix burner |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20200110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |