CN205155925U - Biomass boiler afterbody residual heat from flue gas system - Google Patents
Biomass boiler afterbody residual heat from flue gas system Download PDFInfo
- Publication number
- CN205155925U CN205155925U CN201520863991.6U CN201520863991U CN205155925U CN 205155925 U CN205155925 U CN 205155925U CN 201520863991 U CN201520863991 U CN 201520863991U CN 205155925 U CN205155925 U CN 205155925U
- Authority
- CN
- China
- Prior art keywords
- boiler
- flue gas
- biomass boiler
- saving appliance
- energy
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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
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003546 flue gas Substances 0.000 title claims abstract description 22
- 239000002028 Biomass Substances 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000002956 ash Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
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Abstract
The utility model discloses a biomass boiler afterbody residual heat from flue gas system, including biomass boiler, biomass boiler's exhanst gas outlet connects gradually cyclone, one -level energy -saving appliance, one -level air heater, sack cleaner, second grade energy -saving appliance and second grade air heater. The utility model discloses a through carrying out comprehensive setting to boiler afterbody flue gas system, can make safer, stable, the continuous operation of boiler, improve feed water temperature, reduce exhaust gas temperature to fuel saving and protective apparatus's effect.
Description
Technical field
The utility model belongs to boiler technology field, specifically a kind of recovery system utilizing boiler tail high-temperature residual heat flue gas.
Background technology
The tail flue gas flow arrangement of existing many living beings heating boilers is all then to be induced one chimney row air by air-introduced machine from boiler export through economizer, air preheater, cyclone dust collectors, sack cleaner.Cyclone dust collectors are insulated design, indignant greatly at about 350 DEG C from boiler export cigarette temperature, still very high by the exhaust gas temperature of boiler after economizer, air preheater heat exchange, some all reaches about 200 DEG C, normal exhaust gas temperature can not more than 170 DEG C, causing the heat loss of boiler like this, large (exhaust gas temperature often raises 12-15 DEG C, heat loss increases by 1%), and the right cloth bag of high fume temperature runs and also has very large damage, reduce the service life of cloth bag, increase maintenance rate and maintenance cost.Also because flue gas flow setting is that flue gas exceeds from boiler mouth, after economizer, air preheater low go out, now because cyclone dust collectors are below that height enters to exceed, so smoke pipe will be drawn up by a bend, the flue gas flow so just increased, adds air-introduced machine power consumption.
Utility model content
The utility model is by comprehensively arranging boiler tail flue gas system, can make that boiler is safer, stable, continuous print runs, improve feed temperature, reduce exhaust gas temperature, thus the effect of fuel saving and proterctive equipment.
In order to realize above object, the technical solution of the utility model is achieved in that a kind of biomass boiler tail flue gas residual neat recovering system, comprise biomass boiler, the exhanst gas outlet of described biomass boiler connects cyclone dust collectors, one-level energy-saving appliance, main air preheater, sack cleaner, secondary energy-saving appliance and secondary air preheater successively.
Further, the hull outside of described cyclone dust collectors wraps up one deck water collar.
Feature of the present utility model:
1, because of a large amount of exhaust gas temperatures reducing boiler, improve boiler feed temperature, improve the thermal efficiency of boiler, thus reduce fuel quantity, save production cost.
2, exhaust gas temperature reduces about 80 DEG C, and the boiler thermal output that can improve reaches more than 5%.
3, can being spent (feed temperature often improves 6 DEG C of boiler efficiencies and increases by 1%) from being increased to 90 about 50 before DEG C by heat exchange feed temperature more, the thermal efficiency of boiler can be made like this to reach more than 6%.
4, owing to increasing water collar heating surface before energy-saving appliance; the temperature of energy-saving appliance entrance can be reduced like this, reached and prevented energy-saving appliance booster, the effect of protective energy conservation device; also have the raising of feed temperature can reduce the temperature difference heat effect of drum wall, improve the service life of drum.
5, system arrange than tradition arrange can make flue gas flow few walk a bend, reduce flue resistance, reduce the exerting oneself of air-introduced machine, reduce and run power consumption.
6, the secondary of circulating ash utilizes, and reduces boiler ash loss, improves boiler efficiency.
7, improve the efficiency of cyclone dust collectors, reduce energy-saving appliance, the plugging of air preheater dust stratification improves boiler efficiency, extend the cycle of operation.
8, the use of I and II energy-saving appliance and I and II air preheater, makes boiler tail flue gas temperature have also been obtained and fully recycles comprehensively.
Accompanying drawing explanation
Fig. 1 is the structure chart of living beings boiler tail flue gas residual neat recovering system.
Fig. 2 is the structural representation of cyclone dust collectors.
Detailed description of the invention
As shown in Figure 1, biomass boiler tail flue gas residual neat recovering system is made up of boiler 1, cyclone dust collectors 2, one-level energy-saving appliance 3, main air preheater 4, sack cleaner 5, secondary energy-saving appliance 6, secondary air preheater 7 and air-introduced machine 8.
Boiler export flue gas is introduced into cyclone dust collectors, and cyclone dust collectors adopt water-cooled, and deduster 1 is provided with the heating part of a water collar 10, and the water of water collar enters drum by one-level energy-saving appliance again after boiler water pump comes heat exchange.Utilize the effect of cyclone dust collectors centrifugal force can catch flue dust in flue gas, and the flue dust caught is still with certain calorific value, these ashes with calorific value can carry out collection secondary by the device of a flapper and utilize, flue gas by after cyclone dust collectors through one-level energy-saving appliance, main air preheater, sack cleaner, secondary energy-saving appliance, secondary air preheater, then introduce chimney by air-introduced machine.The exhaust gas temperature of boiler can be made like this to drop to about 110 DEG C, and the cigarette temperature drop at chimney place, to about 80 DEG C, also has circulating ash to be utilized by secondary, thus the thermal efficiency that improve boiler on the whole.
Cyclone dust collectors: be the nucleus equipment of this cover system, effect collects combustible cigarette ash by the effect of equipment centrifugal force, to reach the effect of secondary utilization and dedusting, be provided with water collar, by feedwater heat exchange, reduce exhaust gas temperature, improve feed temperature, thus improve boiler efficiency.The bottom of cyclone dust collectors arranges flapper, and flapper is the gathering-device of circulating ash.The outside of cyclone dust collectors is set with a water collar, by heating part, whole deduster is wrapped, and is provided with upper and lower two annular headers 11,12, boiler feedwater carrys out advanced lower header 12, and then up arrive upper collecting chamber 11 and lead to economizer, centre is heated, move towards with flue gas adverse current, improve heat exchange efficiency.
I and II energy-saving appliance: be the heat constantly being cycled through absorption boiler tail flue gas by boiler soft water, the feedwater of heating boiler, raises the efficiency, saves combustion fuel.
I and II air preheater: be carry out heat exchange respectively by the First air of air blast and the Secondary Air of overfire air fan, improves wind-warm syndrome, strengthens stove combustion, reduces exhaust gas temperature.
Claims (2)
1. a biomass boiler tail flue gas residual neat recovering system, comprise biomass boiler, it is characterized in that: the exhanst gas outlet of described biomass boiler connects cyclone dust collectors, one-level energy-saving appliance, main air preheater, sack cleaner, secondary energy-saving appliance and secondary air preheater successively.
2. biomass boiler tail flue gas residual neat recovering system according to claim 1, is characterized in that, the hull outside of described cyclone dust collectors wraps up one deck water collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863991.6U CN205155925U (en) | 2015-10-30 | 2015-10-30 | Biomass boiler afterbody residual heat from flue gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863991.6U CN205155925U (en) | 2015-10-30 | 2015-10-30 | Biomass boiler afterbody residual heat from flue gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155925U true CN205155925U (en) | 2016-04-13 |
Family
ID=55691614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520863991.6U Expired - Fee Related CN205155925U (en) | 2015-10-30 | 2015-10-30 | Biomass boiler afterbody residual heat from flue gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210558A (en) * | 2018-09-07 | 2019-01-15 | 曾金玉 | A kind of biomass boiler high-temperature flue gas purification processing unit |
-
2015
- 2015-10-30 CN CN201520863991.6U patent/CN205155925U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210558A (en) * | 2018-09-07 | 2019-01-15 | 曾金玉 | A kind of biomass boiler high-temperature flue gas purification processing unit |
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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: 20160413 |