CN106032898B - A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency - Google Patents
A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency Download PDFInfo
- Publication number
- CN106032898B CN106032898B CN201510119190.3A CN201510119190A CN106032898B CN 106032898 B CN106032898 B CN 106032898B CN 201510119190 A CN201510119190 A CN 201510119190A CN 106032898 B CN106032898 B CN 106032898B
- Authority
- CN
- China
- Prior art keywords
- burner
- combustion chamber
- fairing
- improve
- thermal efficiency
- 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
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency, the burner includes burner hearth, the burner hearth is surrounded by water screen tube, the burner is additionally provided with fairing, and the burner hearth is divided into the first combustion chamber, the second combustion chamber and the 3rd combustion chamber by the fairing.Its advantage is：The present invention provides a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency, and it can fully be burnt to coal dust, effective to realize the target that thermoelectricity production is carried out using low-grade coal, improve the thermoelectricity coal-burning boiler thermal efficiency.
Description
【Technical field】
The present invention relates to combustion apparatus, more particularly to a kind of burning dress for being used to improve the large electric power plant coal-burning boiler thermal efficiency
Put.
【Background technology】
The burner hearth of existing all kinds of thermal power station's boiling coal-powder boilers is usually vacant formula design,；Without any masking object in burner hearth,
Coal dust is simple into the combustion process after burner hearth, floats up to furnace outlet under negative pressure, the carbonizable substance imperfect combustion of coal dust shows
As serious, ash content carbon is high, not only produces harmful effect to environment, and resource is not fully utilized, on the other hand, right
In low-grade coal, existing burner can not be utilized, and this undoubtedly governs coal for the big China of low-quality coal reserves
The utilization of the charcoal energy.
【The content of the invention】
It is an object of the invention to overcome the deficiencies in the prior art, the present invention provides a kind of for improving large electric power plant fire coal
The burner of boiler thermal output, it can fully be burnt to coal dust, and effective realize carries out thermoelectricity production using low-grade coal
Target, improve the thermoelectricity coal-burning boiler thermal efficiency.
The technical proposal of the invention is realized in this way：It is provided by the invention a kind of for improving large electric power plant fire coal pot heat
The burner of efficiency, the burner include burner hearth, and the burner hearth is surrounded by water screen tube, and it is theed improvement is that：
The burner is additionally provided with fairing, the fairing by the burner hearth be divided into the first combustion chamber, the second combustion chamber and
3rd combustion chamber.
In said structure, the fairing includes upper radome fairing, commutator, lower radome fairing, the temperature of the commutator
Slightly above described burner hearth.
In said structure, the ignition temperature of second combustion chamber is 1100 DEG C, the coal after the fairing rectification
Powder enters second combustion chamber.
In said structure, the upper radome fairing and lower radome fairing are the radiating surface being made up of some cowling panels.
In said structure, the cowling panel is uniformly provided with reinforced hole.
In said structure, the material that the fairing uses is heat-resistance stainless steel or heat-resisting cast iron.
In said structure, first combustion chamber, the second combustion chamber, the 3rd combustion chamber inlet and outlet section are more than the burner hearth
Outlet 10%.
The beneficial effects of the present invention are：First, one kind of the present invention is used to improve the large electric power plant coal-burning boiler thermal efficiency
Burner burner hearth is divided into three sections by fairing, carry out sectional combustion, just control comburant flow direction.
Second, a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency of the present invention utilizes fairing
Realize the smashing to coal dust and carry it to the second combustion chamber, it is fully burnt；On the other hand, on pulverized coal particle hits
Radome fairing and lower radome fairing and commutator release heat energy, while pulverized coal particle is diminished, easily fully burning.
A kind of third, rectification dress being used to improve in the burner of the large electric power plant coal-burning boiler thermal efficiency of the present invention
Put, radome fairing and lower radome fairing are the radiating surfaces being made up of some cowling panels thereon, can discharge radiant heat to water screen tube, carry
High fuel temperature, makes fuel more easily reach burning-point.
Fourth, a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency of the present invention is filled using rectification
To put, the cowling panel of its fairing is provided with reinforced hole, can be not only that cowling panel high temperature resistant is indeformable, meanwhile, Enhanced Radiation Reduced Blast
Face specific surface area, make bulky grain coal dust by lower completion small-particle coal powder after its shielding prevention, final completely burned.
【Brief description of the drawings】
Fig. 1 is a kind of fairing structure for being used to improve the burner of the large electric power plant coal-burning boiler thermal efficiency of the present invention
Schematic diagram.
In figure：1st, water screen tube；2nd, the first combustion chamber；3rd, the second combustion chamber；4th, the 3rd combustion chamber；5th, upper radome fairing；6、
Commutator；7th, lower radome fairing.
【Embodiment】
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Shown in reference picture 1, it is used to improve the burner of the large electric power plant coal-burning boiler thermal efficiency present invention is disclosed a kind of,
The burner includes burner hearth, and burner hearth is surrounded by water screen tube 1, and above-mentioned burner is additionally provided with fairing, rectification dress
Put and burner hearth is divided into the first combustion chamber 2, the second combustion chamber 3 and the 3rd combustion chamber 4, carry out sectional combustion, improve each section of burning temperature
Degree, it is easy to control combustible substance flow direction.
Further, above-mentioned fairing includes upper radome fairing 5, commutator 6, lower radome fairing 7, wherein, the temperature of commutator 6
Degree is slightly above above-mentioned burner hearth, burner hearth is in negative pressure, and coal dust moves under the effect of above-mentioned radome fairing to the second combustion chamber 3.
Further, the ignition temperature of the second combustion chamber 3 is 1100 DEG C, and the coal dust after above-mentioned fairing rectification enters
Second combustion chamber 3, high temperature make to accelerate while coal dust firing, collide above-mentioned fairing, reduce the volume of pulverized coal particle,
It is set fully to burn.
Further, upper radome fairing 5 and lower radome fairing 7 are the radiating surface being made up of some cowling panels, can be effectively by portion
Divide heat to be released to fuel, improve fuel temperature, be easy to reach burning-point, make burning more abundant.
Further, above-mentioned cowling panel is uniformly provided with reinforced hole, prevents cowling panel from being deformed because of high temperature, while can expand
Radiating surface, radiating surface is increased than variable area, bulky grain coal dust is shielded lower completion small-particle coal powder after prevention by it, finally
Completely burned.
Further, the material that above-mentioned fairing uses is heat-resistance stainless steel or heat-resisting cast iron, and high temperature resistant, intensity is big,
It is unlikely to deform.
Further, the first combustion chamber 2, the second combustion chamber 3, the 3rd combustion chamber 4 inlet and outlet section are cut more than furnace outlet
Face 10%.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention.
In the technological thought category of the present invention, various modifications and modification can occur, all one of ordinary skill in the art according to
Upper description done retouching, modification or equivalent substitution, belong to the scope that the present invention is protected.
Claims (5)
1. a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency, the burner includes burner hearth, described
Burner hearth is surrounded by water screen tube, it is characterised in that：The burner is additionally provided with fairing, and the fairing is by described in
Burner hearth is divided into the first combustion chamber, the second combustion chamber and the 3rd combustion chamber, the fairing include upper radome fairing, commutator, under
Radome fairing, the temperature of the commutator are slightly above the burner hearth, and the upper radome fairing and lower radome fairing are by some cowling panel structures
Into radiating surface.
2. a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency according to claim 1, its feature
It is：The ignition temperature of second combustion chamber is 1100 DEG C, and the coal dust after the fairing rectification enters described second
Combustion chamber.
3. a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency according to claim 1, its feature
It is：The cowling panel is uniformly provided with reinforced hole.
4. a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency according to claim 1, its feature
It is：The material that the fairing uses is heat-resistance stainless steel or heat-resisting cast iron.
5. a kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency according to claim 1, its feature
It is：First combustion chamber, the second combustion chamber, the 3rd combustion chamber inlet and outlet section are more than the furnace outlet section 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119190.3A CN106032898B (en) | 2015-03-18 | 2015-03-18 | A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119190.3A CN106032898B (en) | 2015-03-18 | 2015-03-18 | A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106032898A CN106032898A (en) | 2016-10-19 |
| CN106032898B true CN106032898B (en) | 2018-01-02 |
Family
ID=57150914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510119190.3A Expired - Fee Related CN106032898B (en) | 2015-03-18 | 2015-03-18 | A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106032898B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075320U (en) * | 1990-09-19 | 1991-04-17 | 江西省进贤锅炉辅机厂 | Vertical boiler with double-layer grate |
| CN1176365A (en) * | 1996-09-06 | 1998-03-18 | 许其怀 | Forced coal and organic matter burning method and forced burner |
| EP0882872A2 (en) * | 1993-03-03 | 1998-12-09 | Ebara Corporation | Pressurized internal circulating fluidized-bed boiler |
| CN2658575Y (en) * | 2003-07-16 | 2004-11-24 | 马秀俊 | Pressurization radiation coal-fired boiler |
| CN1619217A (en) * | 2004-11-11 | 2005-05-25 | 大连七六○研究所六○○工厂 | New type reflection section burned half coal gas fuel coal fired boiler |
| CN204534559U (en) * | 2015-03-18 | 2015-08-05 | 王兴华 | A kind of burner for improving the large electric power plant coal-burning boiler thermal efficiency |
-
2015
- 2015-03-18 CN CN201510119190.3A patent/CN106032898B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075320U (en) * | 1990-09-19 | 1991-04-17 | 江西省进贤锅炉辅机厂 | Vertical boiler with double-layer grate |
| EP0882872A2 (en) * | 1993-03-03 | 1998-12-09 | Ebara Corporation | Pressurized internal circulating fluidized-bed boiler |
| CN1176365A (en) * | 1996-09-06 | 1998-03-18 | 许其怀 | Forced coal and organic matter burning method and forced burner |
| CN2658575Y (en) * | 2003-07-16 | 2004-11-24 | 马秀俊 | Pressurization radiation coal-fired boiler |
| CN1619217A (en) * | 2004-11-11 | 2005-05-25 | 大连七六○研究所六○○工厂 | New type reflection section burned half coal gas fuel coal fired boiler |
| CN204534559U (en) * | 2015-03-18 | 2015-08-05 | 王兴华 | A kind of burner for improving the large electric power plant coal-burning boiler thermal efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106032898A (en) | 2016-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103939919B (en) | High efficient oil sludge incinerator | |
| CN204678328U (en) | combustion powder industrial boiler | |
| CN104976611A (en) | Biomass combustion boiler and combustion method thereof | |
| CN203718753U (en) | Composite combustion device | |
| CN104154532A (en) | Center air ring concentrated type turbulent burner | |
| CN106032898B (en) | A kind of burner for being used to improve the large electric power plant coal-burning boiler thermal efficiency | |
| CN102748769A (en) | Biomass fuel vertical rotating bin feeding process with preheating system | |
| CN204534559U (en) | A kind of burner for improving the large electric power plant coal-burning boiler thermal efficiency | |
| CN105402723A (en) | Coal-fired power plant turbulent burner suitable for low-order mixed coal combustion | |
| CN203385194U (en) | Porous medium flue gas hot blast stove capable of burning inferior fuel | |
| CN102997276A (en) | Radiation enhanced combustion boiler cavity | |
| CN207230546U (en) | One kind pyrolysis air burner | |
| CN103075725B (en) | Chemical waste gas boiler furnace for combustion | |
| CN105650625A (en) | Efficient pulverized coal-fired industrial boiler | |
| CN111006201A (en) | Biomass burner | |
| CN203784965U (en) | Efficient incinerator for oil sludge | |
| CN205048486U (en) | Blast air coal stove | |
| CN215892336U (en) | Combustion device of biomass particle direct-fired boiler | |
| CN103672940A (en) | Method for reducing nitrogen oxide generated by combustion of boiler | |
| CN202581288U (en) | Oil burning boiler with functions of energy conservation and emission reduction | |
| CN204460687U (en) | Living beings floating fuel combustion mode burner hearth built-in obstruct arch normal-pressure boiler | |
| CN203810879U (en) | Diffusion type coal injection burning furnace of drying machine | |
| CN202915348U (en) | Device capable of reducing elemental mercury discharge during coal combustion | |
| CN203052709U (en) | Radiating intensified firing boiler hearth | |
| CN205579705U (en) | Oxygen boosting low NOx burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20190318 |