CN204240396U - Residual heat from boiler fume utilizes system - Google Patents
Residual heat from boiler fume utilizes system Download PDFInfo
- Publication number
- CN204240396U CN204240396U CN201420497607.0U CN201420497607U CN204240396U CN 204240396 U CN204240396 U CN 204240396U CN 201420497607 U CN201420497607 U CN 201420497607U CN 204240396 U CN204240396 U CN 204240396U
- Authority
- CN
- China
- Prior art keywords
- air
- boiler
- reduce
- economizer
- air preheater
- 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 - 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of residual heat from boiler fume and utilize system, comprise boiler body and economizer, air preheater installed by the flue of economizer, and air preheater is connected with to be provided the air blast of hot blast to boiler and again supplement the overfire air fan of Secondary Air to boiler.Hot blast and Secondary Air first become high-temperature oxygen needed for supply hearth combustion after air preheater heat exchange, effectively reclaim a large amount of heat energy of flue gas, not only energy-saving fuel, rationally improve hearth combustion operating mode, reduce excess air coefficient, black smoke is avoided to produce, reduce again exhaust gas temperature, reduce the operation of flue gas subsidiary engine equipment, reduce the smoke discharge amount after burning and NOx generation.
Description
Technical field
The utility model belongs to boiler technology field, is specifically related to a kind of residual heat from boiler fume and utilizes system.
Background technology
At present, a lot of boiler is in actual moving process, and owing to not carrying out effective process of flue gas, cause: on the one hand, high fume temperature, the equipment such as sack cleaner, air-introduced machine is easily out of order under high-temperature work environment; On the other hand, fuel consumption is large, and waste heat is seriously polluted, and the thermal efficiency of boiler is greatly affected.
Utility model content
In order to solve prior art Problems existing, the utility model provides a kind of effective reduction exhaust gas temperature, the residual heat from boiler fume of fuel saving utilizes system.
In order to realize above object, the technical scheme that the utility model is taked is: a kind of residual heat from boiler fume utilizes system, comprise boiler body and economizer, air preheater installed by the flue of described economizer, and air preheater is connected with to be provided the air blast of hot blast to boiler and again supplement the overfire air fan of Secondary Air to boiler.
Compared with prior art, the utility model is owing to having set up air preheater at boiler body, hot blast and Secondary Air first become high-temperature oxygen needed for supply hearth combustion after air preheater heat exchange, effectively reclaim a large amount of heat energy of flue gas, not only energy-saving fuel, rationally improve hearth combustion operating mode, reduce excess air coefficient, avoid black smoke to produce, reduce again exhaust gas temperature, reduce the operation of flue gas subsidiary engine equipment, reduce the smoke discharge amount after burning and NOx generation.
Accompanying drawing explanation
Fig. 1 is the structural representation that residual heat from boiler fume utilizes system.
Detailed description of the invention
As shown in Figure 1, residual heat from boiler fume utilizes system to be made up of boiler body 1, economizer 2, air preheater 3, air blast 4 and overfire air fan 5.
The flue of boiler body 1 connects economizer 2 and air preheater 3 successively.Economizer connects demineralized water pipeline.Air preheater 3 connects air blast 4 and overfire air fan 5, and air blast inputs hot blast by airduct to boiler body, and overfire air fan inputs Secondary Air with the oxygen amount needed for supplementary thorax burning by airduct to boiler body.
During boiler replenishing water, demineralized water first by economizer, fully absorbs flue gas heat, then enters boiler-steam dome.First air is, by air blast, cold wind drum is entered air preheater, and after completing heat exchange with flue gas, hot blast enters burner hearth, effectively improves fire box temperature, helps burning, reduces fuel consumption.Secondary Air is then, by overfire air fan, cold wind drum is entered air preheater, enters burner hearth again, makes up the oxygen amount needed for hearth combustion, effectively maintain fire box temperature and reduce exhaust gas temperature after being heated.
Claims (1)
1. a residual heat from boiler fume utilizes system, comprise boiler body and economizer, it is characterized in that: air preheater installed by the flue of described economizer, air preheater is connected with to be provided the air blast of hot blast to boiler and again supplements the overfire air fan of Secondary Air to boiler, and described economizer connects demineralized water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497607.0U CN204240396U (en) | 2014-08-30 | 2014-08-30 | Residual heat from boiler fume utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497607.0U CN204240396U (en) | 2014-08-30 | 2014-08-30 | Residual heat from boiler fume utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204240396U true CN204240396U (en) | 2015-04-01 |
Family
ID=52769885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420497607.0U Expired - Fee Related CN204240396U (en) | 2014-08-30 | 2014-08-30 | Residual heat from boiler fume utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204240396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228356A (en) * | 2017-07-06 | 2017-10-03 | 山西大学 | A kind of automatic stable burning system for opposed firing boiler |
| CN107246607A (en) * | 2017-07-06 | 2017-10-13 | 山西大学 | A kind of automatic stable burning system for Process In A Tangential Firing |
-
2014
- 2014-08-30 CN CN201420497607.0U patent/CN204240396U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228356A (en) * | 2017-07-06 | 2017-10-03 | 山西大学 | A kind of automatic stable burning system for opposed firing boiler |
| CN107246607A (en) * | 2017-07-06 | 2017-10-13 | 山西大学 | A kind of automatic stable burning system for Process In A Tangential Firing |
| CN107246607B (en) * | 2017-07-06 | 2023-05-30 | 山西大学 | Automatic stable combustion system for four-corner tangential boiler |
| CN107228356B (en) * | 2017-07-06 | 2023-05-30 | 山西大学 | Automatic stable combustion system for opposite-flushing boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |