CN205535920U - Opposed firing boiler overgrate air bellows system - Google Patents
Opposed firing boiler overgrate air bellows system Download PDFInfo
- Publication number
- CN205535920U CN205535920U CN201620214203.5U CN201620214203U CN205535920U CN 205535920 U CN205535920 U CN 205535920U CN 201620214203 U CN201620214203 U CN 201620214203U CN 205535920 U CN205535920 U CN 205535920U
- Authority
- CN
- China
- Prior art keywords
- bellows
- layer
- damper
- utility
- face
- 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
Landscapes
- Gas Burners (AREA)
Abstract
The utility model discloses an overgrate air bellows system of opposed firing boiler, including set firmly more than one layer bellows on the furnace body, locate the several damper at every layer bellows both ends, the several combustor on locating every layer bellows, its characterized in that: all be equipped with the more than one guide plate on the bellows of the layer in both ends damper exit, damper is unanimous with the incline direction of guide plate. The utility model discloses each layer interior air current gentleness of bellows can be improved and the homogeneity that distributes is pressed to improve the homogeneity of combustor air distribution, improve the combustion efficiency.
Description
Technical field
This utility model relates to a kind of secondary air bellow system for face-fired boiler.
Background technology
Face-fired boiler as the main type of furnace of Large Copacity generating equipment, its secondary air bellow system, the several dampers including more than one layer bellows, being located at each layer of bellows two ends, the several burners being located on each layer of bellows；Combustion system is the burner of corresponding one layer of every coal pulverizer, and the layer bellows of each layer are separate, and the damper at two ends can individually regulate.But the air door short transverse of existing layer bellows only accounts for a layer part for bellows height (about 1/2) in structure, the wind entering layer bellows can form jet (recirculating zone occur), and in causing layer bellows, blast distribution bias is big, finally affects the uniformity of burner air distribution.
Summary of the invention
The purpose of this utility model is for deficiencies of the prior art, the secondary air bellow system of a kind of face-fired boiler is provided, it can improve air-flow and the uniformity of gas pressure distribution in each layer bellows, thus improves the uniformity of burner air distribution, improves combustion efficiency.
In order to achieve the above object, the secondary air bellow system of a kind of face-fired boiler of the present utility model, including the more than one layer bellows being fixedly arranged on body of heater, the several dampers being located at each layer of bellows two ends, several burners of being located on each layer of bellows, it is characterised in that: on the layer bellows in damper exit, two ends, it is equipped with more than one deflector；
During use, the setting of deflector, it is to avoid the wind entering layer bellows can form jet, can improve air-flow and the uniformity of gas pressure distribution in each layer bellows, form steady flow condition, thus improve the uniformity of burner air distribution, improve combustion efficiency；
Preferred as one, described deflector is straight plate；Straight plate has the effect of certain steady flow condition, its simple in construction, it is simple to make；
Preferred as one, described deflector is arc；Arc has the effect of preferably steady flow condition, and it makes slightly complicated；
Preferred as one, the bluff body plate of described pinion shape；Bluff body plate has the effect of more preferably steady flow condition, and its manufacture difficulty is bigger；
In sum, this utility model can improve air-flow and the uniformity of gas pressure distribution in each layer bellows, thus improves the uniformity of burner air distribution, improves combustion efficiency.
Accompanying drawing explanation
Fig. 1 is the front view of this utility model embodiment one.
Fig. 2 is the partial view of this utility model embodiment two.
Fig. 3 is the partial view of this utility model embodiment three.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in further detail.
Embodiment one
As shown in Figure 1, the secondary air bellow system of this face-fired boiler, including three the layer bellows 2 being fixedly arranged on body of heater 1, the several dampers 3 being located at each layer of bellows 2 two ends, several burners 4 of being located on each layer of bellows 2, each layer bellows 2 in two ends damper 3 exit are equipped with three deflectors 5, damper 3 is consistent with the incline direction of deflector 5, and deflector 5 is straight plate；
During use, due to the setting of deflector 5, it is to avoid the wind entering each layer bellows 2 can form jet, air-flow and the uniformity of gas pressure distribution in each layer bellows 2 can be improved, form steady flow condition, thus improve burner and join the uniformity of 4 wind, improve combustion efficiency；Straight plate has the effect of certain steady flow condition, its simple in construction, it is simple to making, cost is relatively low；Damper 3 and deflector 5 that incline direction is consistent can form more stable jet；
Embodiment two and embodiment three, as shown in Figures 2 and 3, they are only that with the difference of embodiment one: deflector 6 or 7 is respectively arc or the bluff body plate of pinion shape, and they have the effect of more preferably steady flow condition, but its manufacture difficulty is relatively big, can be used for different requirements.
Claims (4)
1. the secondary air bellow system of a face-fired boiler, including the more than one layer bellows being fixedly arranged on body of heater, the several dampers being located at each layer of bellows two ends, several burners of being located on each layer of bellows, it is characterised in that: on the layer bellows in damper exit, two ends, it is equipped with more than one deflector.
The secondary air bellow system of face-fired boiler the most according to claim 1, it is characterised in that: described deflector is straight plate.
The secondary air bellow system of face-fired boiler the most according to claim 1, it is characterised in that: described deflector is arc.
The secondary air bellow system of face-fired boiler the most according to claim 1, it is characterised in that: described deflector is the bluff body plate of pinion shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214203.5U CN205535920U (en) | 2016-03-21 | 2016-03-21 | Opposed firing boiler overgrate air bellows system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620214203.5U CN205535920U (en) | 2016-03-21 | 2016-03-21 | Opposed firing boiler overgrate air bellows system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205535920U true CN205535920U (en) | 2016-08-31 |
Family
ID=56783584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620214203.5U Active CN205535920U (en) | 2016-03-21 | 2016-03-21 | Opposed firing boiler overgrate air bellows system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205535920U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107911A (en) * | 2019-04-30 | 2019-08-09 | 华电电力科学研究院有限公司 | A kind of novel secondary wind system and its working method for face-fired boiler |
| CN110715317A (en) * | 2019-09-20 | 2020-01-21 | 安徽安庆皖江发电有限责任公司 | Wind box of combustion boiler |
| CN114060844A (en) * | 2021-11-24 | 2022-02-18 | 国能蚌埠发电有限公司 | Prevent bellows structure of secondary bellows deposition |
-
2016
- 2016-03-21 CN CN201620214203.5U patent/CN205535920U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107911A (en) * | 2019-04-30 | 2019-08-09 | 华电电力科学研究院有限公司 | A kind of novel secondary wind system and its working method for face-fired boiler |
| CN110107911B (en) * | 2019-04-30 | 2023-09-08 | 华电电力科学研究院有限公司 | Secondary air system for opposed firing boiler and working method thereof |
| CN110715317A (en) * | 2019-09-20 | 2020-01-21 | 安徽安庆皖江发电有限责任公司 | Wind box of combustion boiler |
| CN114060844A (en) * | 2021-11-24 | 2022-02-18 | 国能蚌埠发电有限公司 | Prevent bellows structure of secondary bellows deposition |
| CN114060844B (en) * | 2021-11-24 | 2023-12-26 | 国能蚌埠发电有限公司 | Prevent bellows structure of overgrate air case deposition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107559827B (en) | Ultralow nitrogen gas burner | |
| CN205535920U (en) | Opposed firing boiler overgrate air bellows system | |
| AU2013303566B2 (en) | Solid-fuel burner | |
| CN203940428U (en) | A kind of Problem of Biomass Fuel Gas Combustion installment for Industrial Boiler | |
| CN201662062U (en) | Cyclone pulverized coal burner | |
| CN104075319A (en) | Biomass gas combustion device used for industrial boiler | |
| CN101696802B (en) | Coal type less oil ignition burner capable of controlling vortex width | |
| CN103471101B (en) | Multi-spray-nozzle bulky combustion low-NOx gas combustor | |
| CN202040815U (en) | Natural gas combustion-supporting industrial pulverized coal cyclone combustor | |
| CN104359125B (en) | Central igniting mechanism of combustor of scramjet engine | |
| US10458645B2 (en) | Combustion burner and boiler provided with same | |
| CN106813261A (en) | A kind of boiler secondary bellows system | |
| CN204005958U (en) | A kind of low NO of generating plant pulverized coal boiler | |
| CN107781804B (en) | A kind of symmetrical combustion W type flame boiler of side wall arrangement arch burner | |
| CN102777893B (en) | External secondary air adjusting method and structure for W-flame direct current boiler of double-air regulation burner | |
| CN208652613U (en) | A kind of boiler secondary air subtube supply air system | |
| CN104100971B (en) | A kind of turbulent burner of First air air-coal separating | |
| CN203099816U (en) | Two-rotational-flow industrial boiler pulverized coal burner with back-flushing device | |
| CN109695875A (en) | A kind of more injection tubular type fire pieces | |
| CN208859599U (en) | Swirl injection burner | |
| CN201513882U (en) | Controllable eddy wide coal micro-oil ignition burner | |
| CN203052647U (en) | Boiler capable of adjusting smoke temperature of hearth outlet | |
| CN202008139U (en) | Lignite cyclone burner | |
| CN206695167U (en) | A kind of boiler secondary bellows system | |
| CN201507924U (en) | Micro-oil ignition burner for combined double-sided ignition blunt body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |