CN207179620U - A kind of coal powder cleaning combusting boiler of dilatation design - Google Patents
A kind of coal powder cleaning combusting boiler of dilatation design Download PDFInfo
- Publication number
- CN207179620U CN207179620U CN201721617020.9U CN201721617020U CN207179620U CN 207179620 U CN207179620 U CN 207179620U CN 201721617020 U CN201721617020 U CN 201721617020U CN 207179620 U CN207179620 U CN 207179620U
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- China
- Prior art keywords
- boiler
- boiler furnace
- coal powder
- furnace
- powder cleaning
- 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
Links
- 238000013461 design Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 title claims abstract description 26
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000004939 coking Methods 0.000 abstract description 7
- 238000010408 sweeping Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
The utility model discloses a kind of coal powder cleaning combusting boiler of dilatation design, including steelframe, boiler furnace and burner, boiler furnace is fixed in steelframe, the top of boiler furnace sets drum, the insertion position of burner extends laterally on the bottom of boiler furnace, boiler furnace with the front and rear membrane wall of burner correspondence position.The coal powder cleaning combusting boiler of dilatation design in the utility model, boiler furnace bottom flame central position is subjected to dilatation design, so that furnace flame is evenly arranged, burn more stable, increasing the setting of flame kernel sectional area increasing furnace depth simultaneously can also avoid flame from sweeping wall, avoid the coking of flame kernel region；Increase flame kernel membrane type wall area, that is, increase high-temperature region heating surface area, because high-temperature region heating surface area increases, the increase of heating surface utilization ratio.
Description
Technical field
Pulverized coal firing boiler technical field is the utility model is related to, combustion is cleaned more particularly to a kind of coal dust of dilatation design
Burning boiler.
Background technology
In existing pulverized coal firing boiler, because sectional area is identical above and below burner hearth, the flame-shaped of burner hearth shape and coal dust firing
Shape adaptability is bad, influences being uniformly distributed for flame, and existing chamber structure is readily designed to section of burner hearth and held with burner hearth
The unmatched situation of product, when boiler furnace volume design meet needs and furnace cross-sectional area designs it is smaller when, flame kernel area
Domain burner hearth coking is serious, and boiler can not reliability service；When boiler furnace sectional area design satisfaction needs, combustion space design is inclined
Hour, easily cause furnace outlet coking serious, boiler can not reliability service；Meet needs when boiler furnace sectional area designs,
When combustion space design also meets needs, because furnace heating surface utilization rate is low beyond flame kernel, easily boiler is caused to be heated
Face arrangement increases considerably, and increases boiler manufacture cost.
Utility model content
The purpose of this utility model is to provide a kind of coal powder cleaning combusting boiler of dilatation design, to solve above-mentioned existing skill
The problem of art is present, the boiler of dilatation design can greatly improve pulverized-coal fired boiler reliability of operation, avoid burner hearth overtemperature, keep away
Exempt from boiler furnace coking, improve Combustion Efficiency of Coal Powder, boiler thermal output is further improved.
To achieve the above object, the utility model provides following scheme：The utility model provides a kind of dilatation design
Coal powder cleaning combusting boiler, including steelframe, boiler furnace and burner, the boiler furnace is fixed in the steelframe, described
The top of boiler furnace sets drum, and the insertion position of the burner is in the bottom of the boiler furnace, the boiler furnace
The upper front and rear membrane wall with the burner correspondence position extends laterally.
Optionally, it is provided with the steelframe and some holds platform.
Optionally, the combustor level is arranged in the prepattern wall of the boiler furnace.
Optionally, corresponding with the position of the burner bellows and secondary of being provided with the outside of the boiler furnace
Bellows.
Optionally, described First air bellows and secondary air bellow are the blower fan being connected with each other.
Optionally, the middle and upper part surrounding of the boiler furnace offers air port, the boiler furnace outside and the air port
Corresponding position is installed with tertiary air bellows.
Optionally, the tertiary air bellows use independent blower fan.
Optionally, the exit of the boiler furnace is provided with high temperature superheater, is connected at the boiler furnace outlet
Low temperature superheater is provided with horizontal flue.
Optionally, the afterbody of the flue of the boiler furnace is sequentially installed with higher level's economizer and subordinate's economizer.
Optionally, air preheater is installed on the inside of the flue outlet.
The utility model achieves following technique effect relative to prior art：
The coal powder cleaning combusting boiler of dilatation design in the utility model, boiler furnace bottom flame central position is entered
Row dilatation designs, and upper furnace sectional dimension is constant, and furnace cross-sectional area diminishes suddenly from large to small, by section, rises flue gas resistance
Power is slightly increased, and is influenceed by resistance increase, the flue gas of burning is even into upper furnace so that furnace flame evenly cloth
Put, burning is more stable, while the setting for increasing flame kernel sectional area increasing furnace depth can also avoid flame from sweeping wall, avoid
The coking of flame kernel region；Increase flame kernel membrane type wall area, that is, increase high-temperature region heating surface area, because high-temperature region is heated
Face area increase, the increase of heating surface utilization ratio.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the overall structure diagram of the coal powder cleaning combusting boiler that dilatation designs in the utility model；
Wherein, 1 steelframe；2 boiler furnaces；3 burners；4 tertiary air bellows；5 drums；6 high temperature superheaters；7 cryogenic overheatings
Device；8 higher level's economizers；9 subordinate's economizers；10 air preheaters.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The purpose of this utility model is to provide a kind of coal powder cleaning combusting boiler of dilatation design, to solve above-mentioned existing skill
The problem of art is present, the boiler of dilatation design can greatly improve pulverized-coal fired boiler reliability of operation, avoid burner hearth overtemperature, keep away
Exempt from boiler furnace coking, improve Combustion Efficiency of Coal Powder, boiler thermal output is further improved.
The coal powder cleaning combusting boiler of dilatation design provided by the utility model, including steelframe, boiler furnace and burner,
Boiler furnace is fixed in steelframe, and the top of boiler furnace sets drum, the insertion position of burner in the bottom of boiler furnace,
Front and rear membrane wall on boiler furnace with burner correspondence position extends laterally.
The coal powder cleaning combusting boiler of dilatation design, the flame kernel regional location in coal dust firing carry out dilatation,
Upper furnace sectional dimension is constant, and furnace cross-sectional area diminishes suddenly from large to small, by section, rises flue gas resistance and is slightly increased,
Influenceed by resistance increase, the flue gas of burning is even into upper furnace so that furnace flame evenly arranges that burning is more steady
It is fixed.
Fig. 1 is refer to, wherein, Fig. 1 is the overall structure of the coal powder cleaning combusting boiler that dilatation designs in the utility model
Schematic diagram.
As shown in figure 1, the utility model provides a kind of coal powder cleaning combusting boiler of dilatation design, including steelframe 1, boiler
Burner hearth 2 and burner 3, boiler furnace 2 are fixed in steelframe 1, and the top of boiler furnace 2 sets drum 5, the insertion of burner 3
Position extends laterally on the bottom of boiler furnace 2, boiler furnace 2 with the front and rear membrane wall of the correspondence position of burner 3.
The bottom left and right sides membrane wall of boiler furnace 2 is constant, and membrane wall respectively forwardly translates backward before and after lower furnace portion, membrane type
Wall avoids interfering with boiler steel frame 1 while translation, avoids the increase of the steel consumption of boiler steel frame 1.Some hold is provided with steelframe 1
Platform, it can be used for holding set device.
Burner 3 is arranged horizontally in the prepattern wall of boiler furnace 2, when the position that burner 3 is set is coal dust firing
Flame kernel region position, i.e. burner 3 is in the position of the dilatation of boiler furnace 2.Flame kernel in coal dust firing
Regional location, section of burner hearth carry out a range of structure dilatation, section of burner hearth is met flame kernel burning, the need of heat exchange
Will, while flame impingement membrane wall is avoided, avoid burner hearth coking.Flame from lower furnace portion enter upper furnace when, by become cut
The influence of face resistance, flame degree of filling and distribution in burner hearth are more excellent.
The outside of boiler furnace 2 it is corresponding with the position of burner 3 be provided with a bellows and secondary air box, First air wind
Case and secondary air bellow are the blower fan being connected with each other；The middle and upper part surrounding of boiler furnace 2 offers air port；The outside of boiler furnace 2
With；Position corresponding to air port is installed with tertiary air bellows 4, and tertiary air bellows 4 use independent blower fan.Boiler tertiary air bellows
4 are arranged in the surrounding on the top of boiler furnace 2, and boiler First air, Secondary Air are sent into boiler furnace 2 through burner 3, by being classified cloth
Wind, the generation of nitrogen oxides is controlled, ensure the abundant burning of coal dust.
The exit of boiler furnace 2 is provided with high temperature superheater 6, is set on the horizontal flue of the exit of boiler furnace 2 connection
It is equipped with low temperature superheater 7.Superheater is that the saturated steam under certain pressure is heated into the overheat under relevant pressure in boiler
The heating surface of vapor, the effect of superheater are exactly that saturated vapor is heated into superheated steam, reduce flue gas loss, improve boiler
The thermal efficiency.
The afterbody of the flue of boiler furnace 2 is sequentially installed with higher level's economizer 8 and subordinate's economizer 9, for recovery waste heat,
Economizer is the heating surface for the saturation water being heated into boiler feedwater in boiler back end ductwork under drum pressure, is absorbed due to it
It is the flue gas for comparing low temperature, reduces the exhaust gas temperature of flue gas, save the energy, improve efficiency.
Air preheater 10 is installed on the inside of flue outlet, on the one hand improves and is sent into furnace air temperature, make Boiler Furnace
The temperature of thorax 2 is improved, and is on the other hand reduced exhaust gas temperature and is improved boiler efficiency, additionally it is possible to is improved flame temperature, is strengthened in stove
Radiant heat transfer.
It should be noted that in the utility model dilatation design coal powder cleaning combusting boiler, above-mentioned part it is specific
Set location can carry out appropriate adjustment according to actual needs, as long as in addition, with general principle phase of the present utility model
Together, the simply additions and deletions or change of some simple part, also each fall within the scope of protection of the utility model.
Apply specific case in the utility model to be set forth principle of the present utility model and embodiment, the above
The explanation of embodiment is only intended to help and understands method and its core concept of the present utility model；Meanwhile for the one of this area
As technical staff, according to thought of the present utility model, there will be changes in specific embodiments and applications.To sum up
Described, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
- A kind of 1. coal powder cleaning combusting boiler of dilatation design, it is characterised in that：Including steelframe, boiler furnace and burner, institute State boiler furnace to be fixed in the steelframe, the top of the boiler furnace sets drum, and the insertion position of the burner exists The bottom of the boiler furnace, the front and rear membrane wall on the boiler furnace with the burner correspondence position expand laterally Exhibition.
- 2. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：Set on the steelframe Have and some hold platform.
- 3. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：The combustor level It is arranged in the prepattern wall of the boiler furnace.
- 4. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：Outside the boiler furnace Side it is corresponding with the position of the burner be provided with a bellows and secondary air box.
- 5. the coal powder cleaning combusting boiler of dilatation design according to claim 4, it is characterised in that：Described First air wind Case and secondary air bellow are the blower fan being connected with each other.
- 6. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：The boiler furnace Middle and upper part surrounding offers air port, and position corresponding with the air port is installed with tertiary air wind on the outside of the boiler furnace Case.
- 7. the coal powder cleaning combusting boiler of dilatation design according to claim 6, it is characterised in that：The tertiary air bellows Using independent blower fan.
- 8. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：The boiler furnace Exit is provided with high temperature superheater, and low temperature superheater is provided with the horizontal flue connected at the boiler furnace outlet.
- 9. the coal powder cleaning combusting boiler of dilatation design according to claim 1, it is characterised in that：The boiler furnace The afterbody of flue is sequentially installed with higher level's economizer and subordinate's economizer.
- 10. the coal powder cleaning combusting boiler of dilatation design according to claim 9, it is characterised in that：The flue outlet Inner side air preheater is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617020.9U CN207179620U (en) | 2017-11-28 | 2017-11-28 | A kind of coal powder cleaning combusting boiler of dilatation design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617020.9U CN207179620U (en) | 2017-11-28 | 2017-11-28 | A kind of coal powder cleaning combusting boiler of dilatation design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179620U true CN207179620U (en) | 2018-04-03 |
Family
ID=61745819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617020.9U Expired - Fee Related CN207179620U (en) | 2017-11-28 | 2017-11-28 | A kind of coal powder cleaning combusting boiler of dilatation design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207179620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830509A (en) * | 2017-11-28 | 2018-03-23 | 亿利洁能科技有限公司 | A kind of coal powder cleaning combusting boiler of dilatation design |
-
2017
- 2017-11-28 CN CN201721617020.9U patent/CN207179620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830509A (en) * | 2017-11-28 | 2018-03-23 | 亿利洁能科技有限公司 | A kind of coal powder cleaning combusting boiler of dilatation design |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |