CN203052644U - Air distribution system for boiler - Google Patents
Air distribution system for boiler Download PDFInfo
- Publication number
- CN203052644U CN203052644U CN 201220633901 CN201220633901U CN203052644U CN 203052644 U CN203052644 U CN 203052644U CN 201220633901 CN201220633901 CN 201220633901 CN 201220633901 U CN201220633901 U CN 201220633901U CN 203052644 U CN203052644 U CN 203052644U
- Authority
- CN
- China
- Prior art keywords
- combustion
- boiler
- air
- pipe
- distribution system
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model discloses an air distribution system for a boiler. The air distribution system comprises an air inlet pipe, an air blower, more than one air bellow arranged outside a hearth, and a combustion-supporting air pipe for connecting the bottom of the boiler and the outlet of an economizer, wherein the combustion-supporting air pipe is provided with a circulating fan. The air distribution system is characterized in that the air inlet pipe is connected with the combustion-supporting air pipe through a smoke circulating pipe. The air distribution system can widen a smoke reutilization range, and the using function is enhanced.
Description
Technical field
The utility model relates to a kind of blowing system for boiler.
Background technology
The present blowing system of boiler, comprise blast pipe, air blower, place the burner hearth outside more than one bellows, connect the combustion-supporting airduct of boiler bottom and economizer exit, be provided with circulating fan at combustion-supporting airduct; It only uses tail flue gas as combustion-supporting secondary wind, also its wind as burning is not used, and the scope of flue gas recycling is restricted.
Summary of the invention
The purpose of this utility model is at the prior art above shortcomings, and a kind of blowing system of boiler is provided, and it can enlarge the scope of flue gas recycling, and function of use is enhanced.
For achieving the above object, the blowing system of boiler of the present utility model, comprise blast pipe, air blower, place the burner hearth outside more than one bellows, connect the combustion-supporting airduct of boiler bottom and economizer exit, be provided with circulating fan at combustion-supporting airduct, it is characterized in that blast pipe also links to each other with combustion-supporting airduct by the flue gas recirculation pipe.
During use: pass through circulating fan, extract certain flue gas from economizer exit, it is combustion-supporting that a part enters burner hearth through combustion-supporting airduct, another part enters blast pipe through the flue gas recirculation pipe again, with be admitted to bellows after air mixes, wind and after-flame wind as burning have enlarged the scope of application, have strengthened the function of blowing system.
As further improvement of the utility model, on the combustion-supporting airduct below boiler bottom and blast pipe before the flue gas recirculation pipe be equipped with pressure regulator valve; Can regulate blast, satisfy the needs of different operating modes;
In sum, the utility model can enlarge the scope of flue gas recycling, and function of use is enhanced.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the blowing system of this boiler, comprise blast pipe 1, air blower 2, place the combustion-supporting airduct 19 of two bellows 4, connection boiler bottom and economizer 18 outlets in the burner hearth outside, be provided with circulating fan 20 at combustion-supporting airduct 19, blast pipe 1 also links to each other with combustion-supporting airduct 19 by flue gas recirculation pipe 24, on the combustion-supporting airduct 19 below boiler bottom and blast pipe 1 before flue gas recirculation pipe 24 be equipped with pressure regulator valve 25.
During use, by circulating fan 20, extract certain flue gas from economizer 18 outlets, it is combustion-supporting that a part enters burner hearth through combustion-supporting airduct 19, another part enters blast pipe 1 through flue gas recirculation pipe 24 again, and is admitted to bellows 4 after air mixes, as wind and the after-flame wind of burning, enlarge the scope of application, strengthened the function of blowing system; Pressure regulator valve 25 can be regulated blast, satisfies the needs of different operating modes.
Claims (2)
1. the blowing system of a boiler, comprise blast pipe, air blower, place the burner hearth outside more than one bellows, connect the combustion-supporting airduct of boiler bottom and economizer exit, be provided with circulating fan at combustion-supporting airduct, it is characterized in that blast pipe also links to each other with combustion-supporting airduct by the flue gas recirculation pipe.
2. the blowing system of boiler as claimed in claim 1, it is characterized in that on the combustion-supporting airduct below boiler bottom and blast pipe before the flue gas recirculation pipe be equipped with pressure regulator valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633901 CN203052644U (en) | 2012-11-27 | 2012-11-27 | Air distribution system for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633901 CN203052644U (en) | 2012-11-27 | 2012-11-27 | Air distribution system for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052644U true CN203052644U (en) | 2013-07-10 |
Family
ID=48735591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633901 Expired - Lifetime CN203052644U (en) | 2012-11-27 | 2012-11-27 | Air distribution system for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930537A (en) * | 2015-06-19 | 2015-09-23 | 裴韩佶 | Flue gas recirculation combustion apparatus |
| CN110285442A (en) * | 2019-06-24 | 2019-09-27 | 亿利洁能科技（宿迁）有限公司 | Fine coal ash handling equipment |
-
2012
- 2012-11-27 CN CN 201220633901 patent/CN203052644U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930537A (en) * | 2015-06-19 | 2015-09-23 | 裴韩佶 | Flue gas recirculation combustion apparatus |
| WO2016201740A1 (en) * | 2015-06-19 | 2016-12-22 | 裴韩佶 | Flue gas recirculation combustion apparatus |
| CN104930537B (en) * | 2015-06-19 | 2017-06-20 | 裴韩佶 | A kind of flue gas recirculation burner |
| CN110285442A (en) * | 2019-06-24 | 2019-09-27 | 亿利洁能科技（宿迁）有限公司 | Fine coal ash handling equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107606606B (en) | Central powder feeding omega-shaped industrial pulverized coal boiler adopting flue gas recirculation | |
| CN103836621B (en) | A kind of low nitrogen oxide swirling burner of fractional combustion | |
| CN103759258A (en) | Fuel-saving/gas-ignition stable-combustion low-nitrogen swirling pulverized coal combustor | |
| CN103697466A (en) | Circulating fluidized bed boiler with smoke recirculating bypass, and NOX discharging method | |
| CN203024146U (en) | Efficient desulfurization low-nitrogen coal powder burning combination device | |
| CN203052644U (en) | Air distribution system for boiler | |
| CN204544529U (en) | A kind of for the air cooling spray gun device in SNCR technique | |
| CN205014343U (en) | W flame boiler | |
| CN1207511C (en) | Central coal feed cyclone coal burner | |
| CN203036634U (en) | Fractional combustion low-nitrogen oxide rotational flow burner | |
| CN202638555U (en) | Primary air mixing apparatus of coal pulverizer for reducing production of NOx | |
| CN203980261U (en) | A kind of CFBB | |
| CN203323529U (en) | Energy-saving and emission-reducing system based on raw coal drying | |
| CN203099790U (en) | 600 MW supercritical circulating fluid bed boiler system provided with external heat exchanger | |
| CN204201880U (en) | flue gas recirculation control system | |
| CN204213918U (en) | A kind of multiple flow burnout degree spray nozzle device | |
| CN207990605U (en) | A kind of in due course oxygen supply decoupling burning device of multistage air distribution across Load Regulation | |
| CN203571723U (en) | Circulating fluidized bed boiler | |
| CN202328270U (en) | Mechanical fixed-proportion gas/air mixing device | |
| CN205299579U (en) | An overgrate air disconnect -type tubular air preheater device | |
| CN205783076U (en) | A kind of oxygen-enriched micro-oil grading ignition device | |
| CN205783077U (en) | Pulverized-coal fired boiler micro oil ignition system | |
| CN205372551U (en) | Gaseous after burning device of orifice plate formula pipeline | |
| CN203349493U (en) | Hot blast stove | |
| WO2017075969A1 (en) | Cyclone coarse coal powder gasification combustion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |