CN107830509A - 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
- CN107830509A CN107830509A CN201711214433.7A CN201711214433A CN107830509A CN 107830509 A CN107830509 A CN 107830509A CN 201711214433 A CN201711214433 A CN 201711214433A CN 107830509 A CN107830509 A CN 107830509A
- Authority
- CN
- 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.)
- Pending
Links
- 238000013461 design Methods 0.000 title claims abstract description 34
- 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 25
- 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 9
- 238000004939 coking Methods 0.000 abstract description 7
- 238000010408 sweeping Methods 0.000 abstract 1
- 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 4
- 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
- 230000000694 effects Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 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
- 238000002360 preparation method 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The present invention 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 present invention, 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
The present invention relates to pulverized coal firing boiler technical field, more particularly to a kind of coal powder cleaning combusting pot of dilatation design
Stove.
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.
The content of the invention
It is an object of the invention to provide a kind of coal powder cleaning combusting boiler of dilatation design, deposited with solving above-mentioned prior art
The problem of, the dilatation design boiler can greatly improve pulverized-coal fired boiler reliability of operation, avoid burner hearth overtemperature, avoid pot
Stove burner hearth coking, improves Combustion Efficiency of Coal Powder, boiler thermal output is further improved.
To achieve the above object, the invention provides following scheme：The present invention provides a kind of coal dust cleaning of dilatation design
Burning boiler, including steelframe, boiler furnace and burner, the boiler furnace are fixed in the steelframe, the boiler furnace
Top drum is set, the insertion position of the burner on the bottom of the boiler furnace, the boiler furnace with it is described
The front and rear membrane wall of 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 present invention achieves following technique effect relative to prior art：
The coal powder cleaning combusting boiler of dilatation design in the present invention, boiler furnace bottom flame central position is expanded
Meter is installed with, upper furnace sectional dimension is constant, and furnace cross-sectional area diminishes suddenly from large to small, by section, rises flue gas resistance and omits
Micro- increase, influenceed by resistance increase, the flue gas of burning is even into upper furnace so that furnace flame is evenly arranged, is fired
Burn it is more stable, while increase flame kernel sectional area increase furnace depth setting flame can also be avoided to sweep wall, avoid flame
Central area coking；Increase flame kernel membrane type wall area, that is, increase high-temperature region heating surface area, due to high-temperature region heating surface face
Product increase, the increase of heating surface utilization ratio.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to 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 present invention；
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 embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It is an object of the invention to provide a kind of coal powder cleaning combusting boiler of dilatation design, deposited with solving above-mentioned prior art
The problem of, the dilatation design boiler can greatly improve pulverized-coal fired boiler reliability of operation, avoid burner hearth overtemperature, avoid pot
Stove burner hearth coking, improves Combustion Efficiency of Coal Powder, boiler thermal output is further improved.
The coal powder cleaning combusting boiler of dilatation design provided by the invention, including steelframe, boiler furnace and burner, boiler
Burner hearth is fixed in steelframe, and the top of boiler furnace sets drum, and the insertion position of burner is in the bottom of boiler furnace, boiler
Front and rear membrane wall on burner hearth 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 signal of the coal powder cleaning combusting boiler that dilatation designs in the present invention
Figure.
As shown in figure 1, the present invention provides a kind of coal powder cleaning combusting boiler of dilatation design, including steelframe 1, boiler furnace
2 and burner 3, boiler furnace 2 be fixed in steelframe 1, the top of boiler furnace 2 sets drum 5, the insertion position of burner 3
In the bottom of boiler furnace 2, the front and rear membrane wall on boiler furnace 2 with the correspondence position of burner 3 extends laterally.
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 the coal powder cleaning combusting boiler of the dilatation design in the present invention, the specific setting of above-mentioned part
Position can carry out appropriate adjustment according to actual needs, as long as in addition, identical with the general principle of the present invention, it is simply single
The additions and deletions or change of some pure part, also each fall within protection scope of the present invention.
Specific case is applied in the present invention to be set forth the principle and embodiment of the present invention, above example
Illustrate to be only intended to help the method and its core concept for understanding the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, in specific embodiments and applications there will be changes.In summary, this specification content
It should not be construed as limiting the invention.
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 |
|---|---|---|---|
| CN201711214433.7A CN107830509A (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 |
|---|---|---|---|
| CN201711214433.7A CN107830509A (en) | 2017-11-28 | 2017-11-28 | A kind of coal powder cleaning combusting boiler of dilatation design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830509A true CN107830509A (en) | 2018-03-23 |
Family
ID=61646028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711214433.7A Pending CN107830509A (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) | CN107830509A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7409328A (en) * | 1973-07-11 | 1975-01-14 | Fascione Pietro | BOILER FOR FLUIDUM FUEL. |
| CN101936525A (en) * | 2010-09-27 | 2011-01-05 | 上海交通大学 | Low NOx rotational flow coal dust combustion device of industrial boiler |
| CN202546736U (en) * | 2012-03-23 | 2012-11-21 | 广西西江锅炉制造有限公司 | Bagasse pith and pulverized coal fired boiler |
| CN203203006U (en) * | 2012-12-24 | 2013-09-18 | 杭州燃油锅炉有限公司 | Upright pulverized coal corner tube type boiler |
| CN205014343U (en) * | 2015-10-12 | 2016-02-03 | 大唐华银株洲发电有限公司 | W flame boiler |
| CN207179620U (en) * | 2017-11-28 | 2018-04-03 | 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 CN201711214433.7A patent/CN107830509A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7409328A (en) * | 1973-07-11 | 1975-01-14 | Fascione Pietro | BOILER FOR FLUIDUM FUEL. |
| CN101936525A (en) * | 2010-09-27 | 2011-01-05 | 上海交通大学 | Low NOx rotational flow coal dust combustion device of industrial boiler |
| CN202546736U (en) * | 2012-03-23 | 2012-11-21 | 广西西江锅炉制造有限公司 | Bagasse pith and pulverized coal fired boiler |
| CN203203006U (en) * | 2012-12-24 | 2013-09-18 | 杭州燃油锅炉有限公司 | Upright pulverized coal corner tube type boiler |
| CN205014343U (en) * | 2015-10-12 | 2016-02-03 | 大唐华银株洲发电有限公司 | W flame boiler |
| CN207179620U (en) * | 2017-11-28 | 2018-04-03 | 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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| PB01 | Publication | ||
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Application publication date: 20180323 |