CN206320730U - A kind of coal-burning boiler high-temperature biomass gas fires system again - Google Patents
A kind of coal-burning boiler high-temperature biomass gas fires system again Download PDFInfo
- Publication number
- CN206320730U CN206320730U CN201621048375.6U CN201621048375U CN206320730U CN 206320730 U CN206320730 U CN 206320730U CN 201621048375 U CN201621048375 U CN 201621048375U CN 206320730 U CN206320730 U CN 206320730U
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- China
- Prior art keywords
- coal
- burning boiler
- valve
- secondary air
- fires
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- 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 - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/32—Direct CO2 mitigation
Abstract
The utility model is related to a kind of coal-burning boiler high-temperature biomass gas and fires system again, including coal-burning boiler, what biomass fuel feed channel (3) sequentially passed through that fast valve (4), pipe valve (5) and regulating valve (6) be connected to coal-burning boiler fires spout (2) again；Secondary Air pipeline (8) fires spout (2) again by what secondary air adjustor valve (7) was connected to coal-burning boiler.The utility model uses the biological fuel gas to make the NOx conversion generated in primary zone for HCN, and finally gives harmless N2；CO can also be reduced2Net discharge capacity, reduce unburned carbon in flue dust, realize biomass energy high-grade utilize.Biological fuel gas temperature is more than 300 DEG C, and the tar being prevented from biological fuel gas, which condenses, blocks pipeline.Secondary Air is passed through to system can play combustion-supporting effect as surrounding air, while being cooled down to gas burner.
Description
Technical field
The utility model belongs to biological fuel gas reburning technology field, more particularly to a kind of coal-burning boiler high-temperature biomass combustion
Gas fires system again.
Background technology
Fuel reburning technology is that secondary fuel combustion with meagre oxygen section is set in coal-burning boiler, to control the NOx amounts of ultimately generating.
Using three sections of combustion systems in stove, it is divided into primary zone, reburning zone and burning-out zone successively from bottom to top.Fuel staging sends into burner hearth,
In combustion zone, the top of flame sprays into reburning fuel, makes the NOx conversion of generation as HCN to set up a fuel-rich regions, and finally
Obtain harmless N2。
Gasification of biomass is that biomass material is converted into fuel gas, and the utilization ratio of biological fuel gas is higher, and
It is widely used, it can be used as life coal gas, burning boiler or generating.Because biomass has these advantages, so biological fuel gas
It is of increased attention.
Tar in biological fuel gas is a kind of harmful components, due to tar in low temperature easily in biomass fuel feed channel
It is middle to condense, so that biomass fuel feed channel and burner are blocked.Also met during the use of actual biological fuel gas
Arrive and continued to be passed through biological fuel gas or each pipeline biological fuel gas skewness or even short when boiler is in accident condition
The problem of road.
Further, since temperature is higher in coal-burning boiler, gas burner temperature also can be very high, to the working condition of burner
Produced a very large impact with security.
Utility model content
In view of the shortcomings of the prior art, the utility model fires system again there is provided a kind of coal-burning boiler high-temperature biomass gas.
The system includes coal-burning boiler, and biomass fuel feed channel 3 sequentially passes through fast valve 4, pipe valve 5 and regulating valve 6 and connected
Spout 2 is fired again to coal-burning boiler；Secondary Air pipeline 8 fires spout 2 again by what secondary air adjustor valve 7 was connected to coal-burning boiler.
The beneficial effects of the utility model are：
The utility model sets up fuel rich area in reburning zone, the NOx for making to generate in primary zone using biological fuel gas
HCN is converted into, and finally gives harmless N2；CO can also be reduced2Net discharge capacity, reduce unburned carbon in flue dust, realize biomass
The high-grade of energy is utilized.N, S content of biological fuel gas in itself with little or no containing reducing combustion to a certain extent simultaneously
Material type NOx source.Biological fuel gas temperature is more than 300 DEG C, and the tar being prevented from biological fuel gas, which condenses, blocks pipe
Road.Secondary Air is passed through to system can play combustion-supporting effect as surrounding air, while can be cooled down to gas burner.
Brief description of the drawings
Fig. 1 fires system schematic again for a kind of coal-burning boiler high-temperature biomass gas.
Fig. 2 is the pipeline distribution map that biological fuel gas fires again with multiple coal-burning boilers for firing spout again.
Label declaration：1- coal-burning boilers, 2- fires spout again, and 3- biomass fuel feed channels, 4- fast valves, 5- pipe valves, 6- is adjusted
Save valve, 7- secondary air adjustor valves, 8- Secondary Air pipelines, 9- biomass gasification systems.
Embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.It is emphasized that following
Illustrate what is be merely exemplary, rather than in order to limit scope of the present utility model and its application.
System is fired again for a kind of coal-burning boiler high-temperature biomass gas of the utility model as shown in Figure 1.In coal-burning boiler 1
Burner hearth is divided into primary zone, reburning zone and burning-out zone from the bottom to top, and is correspondingly provided with wind snout, fires spout 2 and burnout degree again
Spout.Further, the biological fuel gas outlet of biomass gasification system 9 is connected with biomass fuel feed channel 3, biological fuel gas
What pipeline 3 sequentially passed through that fast valve 4, pipe valve 5 and regulating valve 6 be connected to coal-burning boiler fires spout 2 again；Secondary Air pipeline 8 passes through
What secondary air adjustor valve 7 was connected to coal-burning boiler fires spout 2 again.
The biological fuel gas temperature obtained in biomass gasification system 9 reaches more than 300 DEG C, high-temperature biomass gas warp
Cross after biomass fuel feed channel 3, fast valve 4, pipe valve 5 and regulating valve 6, enter firing again for coal-burning boiler 1 by firing spout 2 again
Area participates in burning.Fast valve 4 can close to stop supplying biomass fuel when coal-burning boiler 1 is in accident condition in five seconds
Gas.Pipe valve 5 when closed, biological fuel gas can be completely cut off completely into coal-burning boiler 1.Biological fuel gas regulating valve 6 is to adjust
Save the flow resistance of biomass fuel feed channel 3, the flow of reasonable distribution biomass fuel feed channel 3.Due to biological fuel gas temperature
More than 300 DEG C, and combustion system is identical with boiler main fuel, so influenceing small to boiler combustion, while can suppress tar
Produce, prevent that biomass fuel feed channel 3 and gas burner from blocking.
Secondary Air, via spout 2 is fired again into the reburning zone of coal-burning boiler 1 as surrounding air, is led to by Secondary Air pipeline 8
The flow resistance of the regulation Secondary Air of secondary air adjustor valve 7 pipeline 8 is crossed, reasonable distribution Secondary Air air quantity prevents Secondary Air short
Road.Secondary Air can be combustion-supporting and cools down gas burner as surrounding air.
When coal-burning boiler 1 provided with multiple fires spout 2 again, the pipeline distribution of biological fuel gas and Secondary Air is as shown in Figure 2.It is raw
The biological fuel gas outlet of gasification substance system 9 is connected with biomass fuel feed channel 3, and biomass fuel feed channel 3 passes through fast valve 4
After be divided into multiple branch roads, each branch road sequentially passes through pipe valve 5 and regulating valve 6 is connected on coal-burning boiler and fires spout 2 again accordingly；It is many
Road Secondary Air pipeline 8 is connected on coal-burning boiler respectively through secondary air adjustor valve 7 fires spout 2 again accordingly.
The utility model can apply to the difference burning such as quadrangle tangential circle, opposed firing, recirculating fluidized bed, W type flames
The station boiler of mode or other kinds of Industrial Boiler.
Claims (2)
1. a kind of coal-burning boiler high-temperature biomass gas fires system, including coal-burning boiler again, it is characterised in that biomass fuel tracheae
What road (3) sequentially passed through that fast valve (4), pipe valve (5) and regulating valve (6) be connected to coal-burning boiler fires spout (2) again；Secondary air channel
Spout (2) is fired again by what secondary air adjustor valve (7) was connected to coal-burning boiler in road (8).
2. a kind of coal-burning boiler high-temperature biomass gas fires system again according to claim 1, it is characterised in that when coal-fired pot
Stove fires spout (2) again provided with multiple, and biomass fuel feed channel (3) is divided into multiple branch roads after fast valve (4), and each branch road is successively
It is connected to by pipe valve (5) and regulating valve (6) on coal-burning boiler and fires spout (2) again accordingly；Multichannel Secondary Air pipeline (8) is respectively
It is connected to by secondary air adjustor valve (7) on coal-burning boiler and fires spout (2) again accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048375.6U CN206320730U (en) | 2016-09-09 | 2016-09-09 | A kind of coal-burning boiler high-temperature biomass gas fires system again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048375.6U CN206320730U (en) | 2016-09-09 | 2016-09-09 | A kind of coal-burning boiler high-temperature biomass gas fires system again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320730U true CN206320730U (en) | 2017-07-11 |
Family
ID=59263762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621048375.6U Expired - Fee Related CN206320730U (en) | 2016-09-09 | 2016-09-09 | A kind of coal-burning boiler high-temperature biomass gas fires system again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030549A (en) * | 2019-05-14 | 2019-07-19 | 江苏蓝创环保科技有限公司 | A kind of biological fuel gas mingled burning installation and technique for coal-burning boiler |
-
2016
- 2016-09-09 CN CN201621048375.6U patent/CN206320730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030549A (en) * | 2019-05-14 | 2019-07-19 | 江苏蓝创环保科技有限公司 | A kind of biological fuel gas mingled burning installation and technique for coal-burning boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20200909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |