CN208735622U - The connection structure of burner on a kind of burner hearth - Google Patents
The connection structure of burner on a kind of burner hearth Download PDFInfo
- Publication number
- CN208735622U CN208735622U CN201821447079.2U CN201821447079U CN208735622U CN 208735622 U CN208735622 U CN 208735622U CN 201821447079 U CN201821447079 U CN 201821447079U CN 208735622 U CN208735622 U CN 208735622U
- Authority
- CN
- China
- Prior art keywords
- burner
- burner hearth
- center line
- wind combustor
- spout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The connection structure of burner on a kind of burner hearth, it is related to boiler technology field, it is located at limited space between after-flame wind combustor and a wind combustor with the wind combustor three times for solving current, causes the tertiary air resistance of ducting big, burning-out zone is closer unfavorable NO apart from top layer's First airXThe problem of reduction.Four after-flame wind combustors of the utility model are arranged in the quadrangle of burner hearth, each wind combustor is arranged adjacent to the quadrangle of burner hearth three times, front wall of the two tertiary air burner arrangements therein in burner hearth, rear wall of other two tertiary air burner arrangement therein in burner hearth, at an angle, the center line of the burnout degree burner nozzle of burner hearth pair of horns and the center line of the tertiary air burner nozzle of the neighbouring after-flame wind combustor are tangent with first circle of contact respectively for the center line of the center line of each tertiary air burner nozzle and neighbouring after-flame wind combustor.The utility model is suitable for boiler.
Description
Technical field
The utility model relates to boiler technology fields, and in particular to the connection structure of burner on a kind of burner hearth.
Background technique
As country is stringenter to environmental protection index requirement, many thermal power plants are faced with bigger environmental protection pressure.Cause
This, many apparatus of thermo-electric power boiler need to carry out the transformation of burner, and pervious many tertiary air arrangement shapes are found during transformation
Formula cannot fully meet the environmental requirement of power plant.Current wind combustor three times is located at after-flame wind combustor and a wind combustor
Between, and the spout central line of wind combustor, after-flame wind combustor and a wind combustor three is in same vertical flat three times
On face, be arranged so and there are problems that two: first is that limited space, tertiary air burner arrangement is in a wind combustor and burnout degree
Between burner, this arrangement tertiary air pipeline rout is complicated, increases the tertiary air resistance of ducting.Second is that the combustion in boiler furnace
The distance of region top layer First air to the greatest extent is close, makes NOXRecovery time is short, is unfavorable for inhibiting NOXGeneration.
Utility model content
The utility model in order to solve current wind combustor three times be located at after-flame wind combustor and wind combustor it
Between limited space, cause the tertiary air resistance of ducting big, burning-out zone is closer unfavorable NO apart from top layer's First airXReduction is asked
Topic, and a kind of connection structure of burner on burner hearth is provided.
The utility model adopts the technical scheme that solve above-mentioned technical problem:
Four after-flame wind combustors are arranged in the quadrangle of burner hearth, each quadrangle cloth of the wind combustor adjacent to burner hearth three times
It sets, two tertiary air burner arrangements therein are in the front wall of burner hearth, other two tertiary air burner arrangement therein is in furnace
The center line of the rear wall of thorax, the center line of each tertiary air burner nozzle and neighbouring after-flame wind combustor at an angle, furnace
In the tertiary air burner nozzle of the center line of the burnout degree burner nozzle of thorax pair of horns and the neighbouring after-flame wind combustor
Heart line is tangent with first circle of contact respectively, and the center line of another diagonal burnout degree burner nozzle of burner hearth and the neighbouring burnout degree fire
The center line and second circle of contact of the tertiary air burner nozzle of burner are tangent.
Further, the center line of the burner nozzle three times and the centerline of burnout degree burner nozzle are in same
Highly.
The utility model has the advantages that compared with prior art
One, will three times wind combustor setting with after-flame wind combustor sustained height, increase primary zone to burning-out zone away from
From increasing NOXRecovery time, advantageously reduce NOXGeneration.
Two, the forward and backward wall of tertiary air burner arrangement and burner hearth avoids the center line and after-flame of tertiary air burner nozzle
The center line of wind combustor spout causes tertiary air pipeline rout complexity and increases because being in same plane in vertical direction
The problem of tertiary air resistance of ducting.
Three, the forward and backward wall of burner hearth is arranged in wind combustor three times, due to the diffusion in burner hearth of air-flow, in furnace
Adherent wind is formed inside thorax, plays the role of preventing high temperature corrosion.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is partial enlarged view at the I of Fig. 1.
Specific embodiment
Specific embodiment 1: illustrate present embodiment in conjunction with Fig. 1 and Fig. 2, four burnout degree burnings of present embodiment
Device 1 is arranged in the quadrangle of burner hearth, four three times wind combustor 2 arranged adjacent to the quadrangle of burner hearth, two tertiary airs therein
Burner 2 is arranged in the front wall 3 of burner hearth, it is therein other two wind combustor 2 is arranged in the rear wall 4, Mei Gesan of burner hearth three times
The center line of the center line of secondary 2 spout of wind combustor and neighbouring after-flame wind combustor 1 at an angle, the after-flame of burner hearth pair of horns
The center line of 2 spout of wind combustor three times of the center line of 1 spout of wind combustor and the neighbouring after-flame wind combustor 1 is respectively with the
One circle of contact A is tangent, and the three of the center line of another diagonal 1 spout of after-flame wind combustor of burner hearth and the neighbouring after-flame wind combustor 1
The center line and the second circle of contact B of secondary 2 spout of wind combustor are tangent.
The first circle of contact A and the second circle of contact B, the center of circle and second of the first circle of contact A are done on the cross section of burner hearth sustained height
The center point of circle of contact B on the center of burner hearth cross section, the center line of 1 spout of after-flame wind combustor on one, burner hearth is diagonal and
The wind combustor three times 2 of the neighbouring after-flame wind combustor 1 is tangent with the second circle of contact B respectively, burner hearth another it is diagonal on after-flame
The center line of 1 spout of wind combustor and and the neighbouring after-flame wind combustor 1 wind combustor three times 2 respectively with the first circle of contact A phase
It cuts.
Make X-axis as origin in the center of circle of the first circle of contact A or the second circle of contact B, the front wall 3 or rear wall 4 of X-axis and burner hearth are flat
Row.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1, wind combustor 2 sprays three times described in present embodiment
The center line of mouth and the centerline of 1 spout of after-flame wind combustor are in sustained height.
So set, make wind combustor setting three times with after-flame wind combustor sustained height, increase primary zone to after-flame
The distance in area, increases NOXRecovery time, advantageously reduce NOXGeneration.
Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 3: illustrate present embodiment in conjunction with Fig. 1, present embodiment two institutes diagonal adjacent to burner hearth
It states the center line of 2 spout of wind combustor three times and the angle α of X-axis is 40 °, 2 spout of wind combustor three times described in other two
Center line and the angle β of X-axis be 50 °.
Other compositions and connection relationship are identical with embodiment two.
Specific embodiment 4: illustrate present embodiment in conjunction with Fig. 1, each wind combustor three times of present embodiment
The center line of 2 spouts and the angle γ of X-axis are 30-75 °.
So set, center in burner hearth is made to generate rotary wind, when coal dust firing in burner hearth, delay First air with three times
The time of wind mixing, NO is conducive toXReduction, while the temperature of the water-cooling wall of burner hearth is lower with respect to the temperature at burner hearth center,
High temperature corrosion will not be generated, the service life of furnace wall cooling is improved.
Other compositions and connection relationship are the same as the specific implementation mode 3.
Specific embodiment 5: illustrate present embodiment in conjunction with Fig. 1, the diameter of the first circle of contact A described in present embodiment
Diameter than the second circle of contact B is small.
So set, the stability caught fire in burner hearth is improved by the incorporation time for rationally controlling First air and tertiary air,
Since the temperature at burner hearth center is high, guarantee the temperature of discharge flue gas.
Other compositions and connection relationship are identical as specific embodiment four.
Claims (5)
1. the connection structure of burner on a kind of burner hearth, it is characterised in that: four after-flame wind combustors (1) are arranged in burner hearth
Quadrangle, the quadrangle of four neighbouring burner hearths of wind combustor (2) three times arranges, two therein three times wind combustor (2) be arranged in
The front wall (3) of burner hearth, it is therein other two wind combustor (2) is arranged in the rear wall (4) of burner hearth, each tertiary air burning three times
At an angle, the burnout degree of burner hearth pair of horns fires for the center line of device (2) spout and the center line of neighbouring after-flame wind combustor (1)
The center line of wind combustor three times (2) spout of the center line of burner (1) spout and the neighbouring after-flame wind combustor (1) respectively with
First circle of contact (A) is tangent, the center line of another diagonal after-flame wind combustor (1) spout of burner hearth and the neighbouring after-flame wind combustor
(1) center line and second circle of contact (B) of wind combustor three times (2) spout are tangent.
2. the connection structure of burner on a kind of burner hearth according to claim 1, it is characterised in that: the tertiary air burning
The center line of device (2) spout and the centerline of after-flame wind combustor (1) spout are in sustained height.
3. the connection structure of burner on a kind of burner hearth according to claim 2, it is characterised in that: diagonal adjacent to burner hearth
The center line of wind combustor (2) spout and the angle (α) of X-axis are 40 ° three times described in two, other two described tertiary air combustion
The center line of burner (2) spout and the angle (β) of X-axis are 50 °.
4. the connection structure of burner on a kind of burner hearth according to claim 3, it is characterised in that: each tertiary air
The center line of burner (2) spout and the angle (γ) of X-axis are 30-75 °.
5. the connection structure of burner on a kind of burner hearth according to claim 4, it is characterised in that: first circle of contact
(A) diameter is smaller than the diameter of second circle of contact (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821447079.2U CN208735622U (en) | 2018-09-04 | 2018-09-04 | The connection structure of burner on a kind of burner hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821447079.2U CN208735622U (en) | 2018-09-04 | 2018-09-04 | The connection structure of burner on a kind of burner hearth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208735622U true CN208735622U (en) | 2019-04-12 |
Family
ID=66032764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821447079.2U Active CN208735622U (en) | 2018-09-04 | 2018-09-04 | The connection structure of burner on a kind of burner hearth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208735622U (en) |
-
2018
- 2018-09-04 CN CN201821447079.2U patent/CN208735622U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1333199C (en) | W-shape flame furnace with gradation coal burner | |
| WO2011130936A1 (en) | Staged combustion method with multiple injections and w-shaped flame boiler device for carrying out the same | |
| WO2009152654A1 (en) | Horizontal thick and thin direct-current pulverized coal burner arranged by wall type | |
| CN106090900A (en) | A kind of secondary wind low NO of wall deep-gradedxcombustion method and device | |
| CN103912893B (en) | The boiler water wall protective device of anti-coking high temperature corrosion resistance | |
| CN109945167B (en) | A kind of front wall, the asymmetrical W flame boiler of rear wall Secondary Air | |
| CN109695873B (en) | Flow equalization fire piece | |
| CN104329669A (en) | Bitangent circular thick and thin separation adjustable direct-current coal powder combustor | |
| CN208735622U (en) | The connection structure of burner on a kind of burner hearth | |
| CN206861508U (en) | A kind of boiler and its side water wall high temperature corrosion resistance coking device | |
| CN207407373U (en) | A kind of anti-scorch wind structure of Process In A Tangential Firing burner | |
| CN215723168U (en) | System for adjusting tangential circle size of combustion flame of boiler with tangential circles at four corners | |
| CN107036075B9 (en) | Continuously-running biomass briquette gasification burner | |
| CN214370141U (en) | Over-fire air arrangement structure applied to wall type tangential boiler | |
| CN111911916B (en) | Center wall type three-stage air system of opposed-flow cyclone combustion boiler | |
| CN111895404B (en) | Combustor with enhanced fire transmission function and heating stove using same | |
| CN114484421A (en) | Primary air chamber of direct-current combustor and method for preventing boiler slagging and high-temperature corrosion | |
| CN211290021U (en) | Low-nitrogen burner for deep peak shaving pulverized coal boiler | |
| CN209978030U (en) | Multi-venturi combustor | |
| CN103090406A (en) | Biomass boiler | |
| CN207350325U (en) | A kind of new step arch W flame boiler furnace structure | |
| CN112377894A (en) | Wind tangent circle pulverized coal combustion boiler | |
| CN210320000U (en) | Power station pulverized coal boiler furnace | |
| CN116293667B (en) | Combustor with inclined high-low staggered fire hole plates | |
| CN210373408U (en) | Secondary air flue gas recirculation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |