CN108317539A - A kind of boiler secondary air subtube supply air system - Google Patents
A kind of boiler secondary air subtube supply air system Download PDFInfo
- Publication number
- CN108317539A CN108317539A CN201810250337.6A CN201810250337A CN108317539A CN 108317539 A CN108317539 A CN 108317539A CN 201810250337 A CN201810250337 A CN 201810250337A CN 108317539 A CN108317539 A CN 108317539A
- Authority
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- China
- Prior art keywords
- secondary air
- air
- preheater
- pipeline
- subtube
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 20
- 239000002817 coal dust Substances 0.000 claims abstract description 5
- 210000004894 snout Anatomy 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 210000000038 chest Anatomy 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/02—Regulating draught by direct pressure operation of single valves or dampers
-
- 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
Abstract
A kind of boiler secondary air subtube supply air system, it includes：Pressure fan 1, valve 2, preheater 3, Secondary Air main pipeline 4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11.Secondary air separating pipe-line system is equipped at the Secondary Air main pipeline 4 and burner nozzle 5, it is made of Secondary Air main pipeline 4, secondary air separating pipeline 41, bellows 8, adjustable damper 9.According to coal situation, load variations, combustion position in boiler is used, to adjust the switch of each secondary air separating pipeline adjustable damper, to control Secondary Air air outlet velocity.Invention increases the regulating powers of Secondary Air Nozzle of Boilers wind speed, suitable secondary wind wind speed is selected according to load variations, coal type change, increase spout secondary wind wind speed when underload, and then increase the mixing of air and coal dust in burner hearth, disturbance, increases burn rate.The present invention is easy to operate, it can be achieved that being precisely controlled, and has safe and stable property.
Description
Technical field
The present invention relates to coal-fired power station boiler technical fields, particularly relate to a kind of boiler secondary air subtube supply air system.
Background technology
The design of boiler is established on the basis of specific coal, and in actual operation, and it is larger that power plant uses coal type change,
So as to cause using design coal, Design cooling load efficient burning is cannot achieve in actual operation as the boiler plant of foundation.If energy
Mixing, the disturbance for increasing air and coal dust, must be conducive to boiler combustion.
Modern environmental protection proposes boiler combustion new requirement, to control NOx generation amount in burning.Main technical schemes
It is to supply a small amount of air, high-temperature region and then the required surplus air of supply burning at burning initial stage.If to ensure low NOx
Efficiency of combustion is improved on the basis of burning, it is necessary to increase mixing, the disturbance of late combustion air and coal grain.
It is the key that unit depth peak regulation to improve boiler low load stable combustion ability.When underload, boiler oil amount is reduced, combustion
It burns stability to decline, if burner nozzle wind speed can be improved, and then improves the mixed of air and coal grain, increase stream in boiler
Mixing, the disturbance of field are to increase the effective ways of boiler combustion stability.
Current secondary air system form：Secondary Air from pressure fan outlet enter air preheater heat, after entered by pipeline
Each bellows, a bellows correspond to several groups of burners.When boiler load changes, entered by adjusting pressure fan rotating speed and pressure fan
Mouthful baffle controls total blast volume；Air quantity adjusting and air distribution are carried out by adjusting each bellows control baffle.
The above structure can not cope with the new challenge of boiler operatiopn.It is mainly manifested in：The area of Secondary Air Nozzle of Boilers is not
It can change, i.e., to carry out air distribution combustion under the unalterable state of area of injection orifice, in coal quality complexity, require low NOx combustion
Under low load condition, the part or all of secondary wind wind speed of burner outlet reduces, and leads to mixing, the perturbation action drop of Secondary Air
Low, the contacting efficiency of pulverized coal particle and air declines, and is unfavorable for the burning of coal grain, so that unburned carbon in flue dust is increased, even result in boiler
It is flame-out.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, propose a kind of boiler secondary air subtube supply air system,
Adaptability of the boiler to coal coal varitation can be improved in it, improves the efficiency of combustion of low-NOx combustor, improves boiler at low load combustion
Burn stability.
The present invention makes burner secondary air duct and spout, is changed to adapt to different burners by fixed area is non-adjustable
The subtube of condition and the adjustable flow rate of requirement and divide spout, increases the scalability of secondary wind wind speed.Such as：Low negative
When lotus, by adjusting subtube and the switch for dividing spout, the secondary wind wind speed of spout when improving low discharge increases coal grain, air
Mixing, disturbance improve efficiency of combustion.
The technical scheme is that：
A kind of boiler secondary air subtube supply air system, by pressure fan, valve, preheater, secondary air duct, burner spray
Mouth, burner hearth, back-end ductwork, air-introduced machine, chimney are constituted.
There are four types of realize technical solution for the secondary air duct and burner nozzle：
The bellows export secondary air separating pipe-line system, can by main secondary air duct, secondary air bellow, secondary air separating pipeline
Gear shift plate, secondary air separating pipeline are constituted；
Subtube system among bellows outlet Secondary Air, is exported to by main secondary air duct, secondary air bellow, bellows
Burner main pipeline, subtube adjustable damper, secondary air separating pipeline are constituted；
The no bellows secondary air separating pipe-line system, is made of pipeline adjustable damper, secondary air separating pipeline；
Subtube system among the no bellows Secondary Air, by the secondary air duct of each burner of correspondence, subtube can
Gear shift plate, secondary air separating pipeline are constituted.
Four kinds of technical solutions may be used alone or in combination use, subtube is separated by where from main pipeline,
It is determined according to actual demand and resistance of ducting situation.
Each specific number of subtube is determined according to the concrete condition of each case.Combustion conditions are complicated, coal situation is more
Boiler easily configure more pipes, but to consider the increased unfavorable factor of resistance.According to concrete case, the meters such as economic, safety are carried out
Optimum pipeline number is selected after calculation.
In independent every subtube section start, it is respectively provided with baffle, is adjusted according to boiler combustion needs.
The secondary air separating pipeline section shape can be the diversified forms such as round, oval, rectangular, select according to field condition
It selects.
The controllable register adjusts its aperture according to inner operating variation, combustion stability variation.
The controllable register of the secondary air separating pipeline is remote adjustment, and is manually adjusted equipped with live, also can basis
Actual demand selects one of which regulative mode.
The secondary air separating pipeline controllable register is equipped with independent control mode or grouping control mode.
The secondary air separating pipeline controllable register is equipped with minimum cooling wind flow control, to ensure that burner nozzle will not be burnt
It ruins.
The secondary air duct extends to burner nozzle, and spout is divided into the multiple point sprays direct-connected with subtube
Mouthful.
The burner nozzle, including fuel wind snout, auxiliary wind snout and fire air nozzle, i.e., all and Secondary Air
The burner nozzle that pipeline is connected.
The advantage of the invention is that：Invention increases the regulating powers of Secondary Air Nozzle of Boilers wind speed, are become according to load
The selections such as change, coal type change suitable secondary wind wind speed increases spout secondary wind wind speed when underload, and then increases empty in burner hearth
Mixing, the disturbance of gas and coal dust, increase burn rate.Technical solution of the present invention is easy to operate and can realize and is precisely controlled.This hair
Bright to be particularly suitable for that domestic coal type change is more, the power plant high to requirement on flexibility increases the safety, steady of boiler of power plant operation
It is qualitative.
Description of the drawings
Fig. 1 is boiler secondary air subtube supply air system structural schematic diagram of the present invention.
Fig. 2 is that bellows export secondary air separating pipeline configuration schematic diagram in boiler secondary air subtube supply air system of the present invention.
Fig. 3 is that bellows export subtube structural representation among Secondary Air in boiler secondary air subtube supply air system of the present invention
Figure.
Fig. 4 is in boiler secondary air subtube supply air system of the present invention without bellows secondary air separating pipeline configuration schematic diagram.
Fig. 5 is in boiler secondary air subtube supply air system of the present invention without subtube structural representation among bellows Secondary Air
Figure.
Drawing reference numeral explanation：
Pressure fan 1；Valve 2,2 '；Preheater 3,3 '；
Secondary Air main pipeline 4；Secondary air separating pipeline 41,42,43,44；Burner main pipeline 45；
Burner nozzle 5；Burner hearth 6；Back-end ductwork 7；Bellows 8；Adjustable damper 9；Air-introduced machine 10；Chimney 11.
Specific implementation mode
With reference to the accompanying drawings of the specification and embodiment, the present invention is further illustrated.
Embodiment 1：
As shown in Figure 1, 2, boiler secondary air subtube supply air system of the present invention, it includes：Pressure fan 1, valve 2, preheating
Device 3, Secondary Air main pipeline 4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney
11；Wherein, pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5
It is connect with burner hearth 6；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11 successively.Described
Secondary air separating pipe-line system is equipped at Secondary Air main pipeline 4 and burner nozzle 5, it is in charge of by Secondary Air main pipeline 4, Secondary Air
Road 41, bellows 8, adjustable damper 9 are constituted.
Wherein, it is equipped with adjustable damper 9 in the section start of each secondary air separating pipeline 41, and can be according to the reality of boiler combustion
Border needs to be adjusted.
Embodiment 2：
As shown in Figure 1,3, boiler secondary air subtube supply air system of the present invention, it includes：Pressure fan 1, valve 2, preheating
Device 3, Secondary Air main pipeline 4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney
11；Wherein, pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5
It is connect with burner hearth 6；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11 successively.Described
Subtube system among Secondary Air is equipped at Secondary Air main pipeline 4 and burner nozzle 5, it is by main secondary air duct 4, Secondary Air
Subtube 42, bellows outlet burner Secondary Air main pipeline 45, bellows 8, adjustable damper 9 are constituted.
Wherein, it is equipped with adjustable damper 9 in the section start of each secondary air separating pipeline 42, and can be according to the reality of boiler combustion
Border needs to be adjusted.
Embodiment 3：
As shown in Fig. 1,4, boiler secondary air subtube supply air system of the present invention, it includes：Pressure fan 1, valve 2, preheating
Device 3, Secondary Air main pipeline 4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9；
Wherein, pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5 and stove
Thorax 6 connects；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9 successively.In the Secondary Air
Equipped with no bellows secondary air separating pipe-line system at main pipeline 4 and burner nozzle 5, it is by secondary air separating pipeline 43, adjustable damper 9
It constitutes.
Wherein, it is equipped with adjustable damper 9 in the section start of each secondary air separating pipeline 43, and can be according to the reality of boiler combustion
Border needs to be adjusted.
Embodiment 4：
As shown in Figure 1,5, boiler secondary air subtube supply air system of the present invention, it includes：Pressure fan 1, valve 2, preheating
Device 3, Secondary Air main pipeline 4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9；
Wherein, pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5 and stove
Thorax 6 connects；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9 successively.In the Secondary Air
Equipped with subtube system among no bellows Secondary Air at main pipeline 4 and burner nozzle 5, it is by burner Secondary Air main pipeline
45, secondary air separating pipeline 44, adjustable damper 9 are constituted.
Wherein, it is equipped with adjustable damper 9 in the section start of each secondary air separating pipeline 45, and can be according to the reality of boiler combustion
Border needs to be adjusted.
Above-mentioned 4 embodiments, can be according to using coal situation, load variations, boiler internal combustion in actual moving process
Burning situation, to adjust the switch of each secondary air separating pipeline adjustable damper, to control Secondary Air air outlet velocity；When underload, protect
Spout outlet wind speed is held to increase the mixing between coal grain and air, disturbance, increases coal dust firing rate.
In actual operation, can be according to demand, institute in secondary air separating pipe-line system in selection embodiment 1 to embodiment 4
The bellows stated export secondary air separating pipe-line system, bellows outlet Secondary Air centre subtube system, without among bellows Secondary Air points
Pipe-line system, the set-up mode without bellows secondary air separating pipe-line system；Or Secondary Air in embodiment 1 to embodiment 4 is selected in part
The set-up mode of subtube system, which can carry out reasonable combination, to reach best use effect.
The above be preferred embodiment, be not intended to limit the invention, it is all the present invention spiritual principles it
Any modification, equivalent substitution, improvement and etc. that are interior, being done, should be included within the scope of the present invention.
Claims (10)
1. a kind of boiler secondary air subtube supply air system, it includes：Pressure fan 1, valve 2, preheater 3, Secondary Air main pipeline
4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11；It is characterized in that：It is described
Pressure fan 1 be sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5 and burner hearth 6
Connection；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11 successively；And described secondary
Secondary air separating pipe-line system is equipped at wind main pipeline 4 and burner nozzle 5, it is by Secondary Air main pipeline 4, secondary air separating pipeline
41, bellows 8, adjustable damper 9 are constituted；And it is equipped with adjustable damper 9 in the section start of secondary air separating pipeline 41, it can be according to boiler combustion
Actual needs be adjusted.
2. a kind of boiler secondary air subtube supply air system, it includes：Pressure fan 1, valve 2, preheater 3, Secondary Air main pipeline
4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11；It is characterized in that：It is described
Pressure fan 1 be sequentially connected with valve 2, preheater 3；Preheater 3 passes through Secondary Air main pipeline 4 and burner nozzle 5 and burner hearth 6
Connection；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 10, chimney 11 successively；And described secondary
Subtube system among Secondary Air is equipped at wind main pipeline 4 and burner nozzle 5, it is in charge of by main secondary air duct 4, Secondary Air
Road 42, bellows outlet burner Secondary Air main pipeline 45, bellows 8, adjustable damper 9 are constituted；And rising in secondary air separating pipeline 42
It is equipped with adjustable damper 9 at beginning, can be adjusted according to the actual needs of boiler combustion.
3. a kind of boiler secondary air subtube supply air system, it includes：Pressure fan 1, valve 2, preheater 3, Secondary Air main pipeline
4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9；It is characterized in that：Described
Pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 is connected by Secondary Air main pipeline 4 and burner nozzle 5 with burner hearth 6
It connects；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9 successively；And in the Secondary Air master
Equipped with no bellows secondary air separating pipe-line system at pipeline 4 and burner nozzle 5, it is by secondary air separating pipeline 43,9 structure of adjustable damper
At；And it is equipped with adjustable damper 9 in the section start of secondary air separating pipeline 43, it can be adjusted according to the actual needs of boiler combustion
It is whole.
4. a kind of boiler secondary air subtube supply air system, it includes：Pressure fan 1, valve 2, preheater 3, Secondary Air main pipeline
4, burner nozzle 5, burner hearth 6, back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9；It is characterized in that：Described
Pressure fan 1 is sequentially connected with valve 2, preheater 3；Preheater 3 is connected by Secondary Air main pipeline 4 and burner nozzle 5 with burner hearth 6
It connects；Burner hearth 6 is connect with back-end ductwork 7, preheater 3 ', valve 2 ', air-introduced machine 8, chimney 9 successively；And in the Secondary Air master
Equipped with subtube system among no bellows Secondary Air at pipeline 4 and burner nozzle 5, it by burner Secondary Air main pipeline 45,
Secondary air separating pipeline 44, adjustable damper 9 are constituted；And it is equipped with adjustable damper 9 in the section start of secondary air separating pipeline 45, it can be according to pot
The actual needs of stove burning is adjusted.
5. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：The no bellows two
Four kinds of embodiments of subtube system may be used alone or in combination use among secondary wind；Subtube is divided by where from main pipeline
Go out, can be determined according to actual demand and resistance of ducting situation.
6. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：The secondary air separating
The controllable register of pipeline is remote adjustment, and is manually adjusted equipped with scene, also can select one of which according to actual demand
Regulative mode.
7. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：The secondary air separating
Pipeline controllable register is equipped with independent control mode or grouping control mode.
8. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：The secondary air separating
Pipeline controllable register is equipped with minimum cooling wind flow control, to ensure that burner nozzle will not be burnt.
9. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：According to using coal
Situation, load variations, combustion position in boiler, to adjust the switch of the secondary air separating pipeline adjustable damper, control is secondary
Wind air outlet velocity；When underload, spout outlet wind speed is kept to increase the mixing between coal grain and air, disturbance, increases coal dust combustion
Burn rate.
10. the boiler secondary air subtube supply air system according to Claims 1-4, it is characterised in that：The burner
Spout, including fuel wind snout, auxiliary wind snout and fire air nozzle, i.e., all burner sprays being connected with secondary air duct
Mouthful；The secondary air duct extends to burner nozzle, and spout is divided into the multiple point spouts direct-connected with subtube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250337.6A CN108317539A (en) | 2018-03-26 | 2018-03-26 | A kind of boiler secondary air subtube supply air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250337.6A CN108317539A (en) | 2018-03-26 | 2018-03-26 | A kind of boiler secondary air subtube supply air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317539A true CN108317539A (en) | 2018-07-24 |
Family
ID=62898304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810250337.6A Withdrawn CN108317539A (en) | 2018-03-26 | 2018-03-26 | A kind of boiler secondary air subtube supply air system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108317539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237082A (en) * | 2021-04-25 | 2021-08-10 | 西安交通大学 | Plug-in L-shaped secondary air baffle |
| CN113251433A (en) * | 2021-03-17 | 2021-08-13 | 西安交通大学 | Rotatable square overgrate air baffle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599427A (en) * | 1991-10-14 | 1993-04-20 | Matsushita Electric Ind Co Ltd | Combustion air adjusting device |
| CN1587798A (en) * | 2004-07-07 | 2005-03-02 | 杨爱生 | Keeping secondary wind speed stable combustion technology when boiler at low load |
| CN102705819A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Closing-to-wall air combustion system for boiler burner |
| CN204786358U (en) * | 2015-07-05 | 2015-11-18 | 天津鸿觉能源科技有限公司 | Energy saving and emission reduction gas boiler |
| CN208652613U (en) * | 2018-03-26 | 2019-03-26 | 北京蓝爱迪电力技术有限公司 | A kind of boiler secondary air subtube supply air system |
-
2018
- 2018-03-26 CN CN201810250337.6A patent/CN108317539A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599427A (en) * | 1991-10-14 | 1993-04-20 | Matsushita Electric Ind Co Ltd | Combustion air adjusting device |
| CN1587798A (en) * | 2004-07-07 | 2005-03-02 | 杨爱生 | Keeping secondary wind speed stable combustion technology when boiler at low load |
| CN102705819A (en) * | 2012-06-22 | 2012-10-03 | 上海锅炉厂有限公司 | Closing-to-wall air combustion system for boiler burner |
| CN204786358U (en) * | 2015-07-05 | 2015-11-18 | 天津鸿觉能源科技有限公司 | Energy saving and emission reduction gas boiler |
| CN208652613U (en) * | 2018-03-26 | 2019-03-26 | 北京蓝爱迪电力技术有限公司 | A kind of boiler secondary air subtube supply air system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251433A (en) * | 2021-03-17 | 2021-08-13 | 西安交通大学 | Rotatable square overgrate air baffle |
| CN113237082A (en) * | 2021-04-25 | 2021-08-10 | 西安交通大学 | Plug-in L-shaped secondary air baffle |
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Application publication date: 20180724 |