CN208365496U - One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical - Google Patents
One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical Download PDFInfo
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- CN208365496U CN208365496U CN201820850434.4U CN201820850434U CN208365496U CN 208365496 U CN208365496 U CN 208365496U CN 201820850434 U CN201820850434 U CN 201820850434U CN 208365496 U CN208365496 U CN 208365496U
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- superheater
- economizer
- reheater
- boiler
- burner hearth
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- 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
One kind of the utility model is related to a kind of boiler with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, and in particular to a kind of tower boiler using damper adjustment.Purpose is to be difficult the problem of making reheater reach design value in order to which the original boiler overcome adjusts steam steam temperature means, it provides a kind of with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler body, economizer system, superheater system and reheater system are equipped in the burner hearth of the boiler body, the advantage of the more traditional level-one economizer arrangement of the arrangement of the economizer system of the utility model is to guarantee that boiler full load throws denitration, the efficiency of raising boiler controller system entirety；Two-stage superheater is arranged in front of midfeather, is adjusted the flue gas ratio between superheater and reheater by gas proportioning damper to be finally reached the purpose for adjusting steam steam temperature, more be can guarantee that reheater reaches design value.
Description
Technical field
The utility model relates to a kind of boilers, and in particular to a kind of tower boiler using damper adjustment.
Background technique
The lignite resource rich reserves in China, fan mill have good adaptability for high water content brown coal.And tower pot
Furnace is more suitable for the arrangement of fan mill, but tower boiler at this stage, using watering temperature adjustment mode, but adopts
With the boiler of watering temperature adjustment, this regulative mode is difficult that reheater is made to reach design value；And traditional economizer arrangement, only
Level-one arrangement not can guarantee full load and throw denitration, inefficiency.
Utility model content
The purpose of this utility model is to overcome original boiler adjust steam steam temperature means be difficult to reach reheater
The problem of design value, provides a kind of with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical.
One kind of the utility model matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including pot
Furnace body, the burner hearth of the boiler body is interior to be equipped with economizer system, superheater system and reheater system, and the top of burner hearth is equipped with
Divider wall, for flue gas to be divided into two-way；The top of divider wall is equipped with gas proportioning damper, for adjusting the cigarette of divider wall two sides
Gas ratio；
Economizer system includes burner hearth economizer and flue economizer, and burner hearth economizer and flue economizer pass through economizer
Connecting tube connection；Burner hearth economizer is set between divider wall and gas proportioning damper, and flue economizer is set to denitration SCR reactor
In exhaust pass；The furnace internal heating surface of the economizer system is in-line arrangement；
Superheater system includes primary superheater, two-stage superheater and three-stagesuperheater and primary superheater, secondary superheater
Device passes sequentially through superheater connecting tube with three-stagesuperheater and connects；
Primary superheater includes primary superheater entrance tube panel and primary superheater outlet tube panel；Primary superheater inlet tube
The first order for the lower furnace portion that screen is set between burner hearth economizer and gas proportioning damper, primary superheater outlet tube panel is set to is changed
At hot face；
Reheater system includes level-one reheater and final reheater and level-one reheater and final reheater pass through reheating
The connection of device connecting tube；
Primary superheater outlet tube panel top along the flow direction of flue gas be successively arranged three-stagesuperheater, final reheater and every
From wall, the side of the divider wall is equipped with two-stage superheater, the other side is equipped with level-one reheater.
The beneficial effects of the utility model are:
1, the advantage of the more traditional level-one economizer arrangement of the arrangement of economizer system is to guarantee that boiler full load is thrown
Denitration improves the efficiency of boiler controller system entirety；
2, two-stage superheater is arranged in front of midfeather, adjusted by gas proportioning damper superheater and reheater it
Between flue gas ratio come be finally reached adjust steam steam temperature purpose, more can guarantee that reheater reaches design value, relative to original
For single burner swing temperature adjustment and watering temperature adjustment mode, this scheme enriches the regulating measure of reheater steam temperature.
Detailed description of the invention
Fig. 1 is a kind of with the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical of the utility model
Structural schematic diagram.
Specific embodiment
Specific embodiment one
One kind of the utility model matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including pot
Furnace body, the burner hearth 1 of the boiler body is interior to be equipped with economizer system, superheater system and reheater system, and the top of burner hearth 1 is set
There is divider wall 2, for flue gas to be divided into two-way；The top of divider wall 2 is equipped with gas proportioning damper 3, for adjusting 2 liang of divider wall
The flue gas ratio of side；
Economizer system includes burner hearth economizer 4 and flue economizer 5, and burner hearth economizer 4 and flue economizer 5 pass through province
The connection of coal device connecting tube；Burner hearth economizer 4 is set between divider wall 2 and gas proportioning damper 3, and flue economizer 5 is set to denitration
In SCR reactor outlet flue 6；The furnace internal heating surface of the economizer system is in-line arrangement；
Superheater system includes primary superheater 7, two-stage superheater 8 and three-stagesuperheater 9 and primary superheater 7, second level
Superheater 8 passes sequentially through superheater connecting tube with three-stagesuperheater 9 and connects；
Primary superheater 7 includes that primary superheater entrance tube panel 10 and primary superheater export tube panel 11；Primary superheater
The burner hearth 1 that entrance tube panel 10 is set between burner hearth economizer 4 and gas proportioning damper 3, primary superheater outlet tube panel 11 is set to
At the first order heat-transfer surface of lower part；
Primary superheater 7 includes that primary superheater entrance tube panel 10 and primary superheater export tube panel 11, is arranged in burner hearth
At top or furnace outlet smokestack, the direct radiant heat in furnace was not only received, but also absorb the heating surface of the advection heat of flue gas.Level-one mistake
Hot device entrance tube panel 10 and primary superheater keep relatively large distance between exporting 11 liang of tube panel screens, can play reduction furnace outlet flue gas
The effect of temperature and crust block prevents subsequent Boiler Heating Surfaces.High superheated steam temperature can be born, practical and stable, the service life
It is long.
Reheater system includes level-one reheater 13 and final reheater 12 and level-one reheater 13 and final reheater 12
It is connected by reheater connecting tube；
The top of primary superheater outlet tube panel 11 is successively arranged three-stagesuperheater 9, final reheater along the flow direction of flue gas
12 and divider wall 2, the side of the divider wall 2 is equipped with two-stage superheater 8, the other side is equipped with level-one reheater 13.
Superheater system is used to steam being further heated to overtemperature from saturation temperature, reheater system by steam from
The intergrade of steam turbine is drawn, and is reheated.Meanwhile divider wall 2 is equipped in burner hearth, former and later two are separated out in burner hearth
Vertical shaft, and two-stage superheater 8 is mounted on the side (on front side of burner hearth) of divider wall 2, and level-one reheater 13 is mounted on divider wall 2
The other side (burner hearth on rear side of) is equipped with gas proportioning damper 3 above divider wall 2, which passes through transmission mechanism transmission
Cooperate and the gas proportioning damper 3 is controlled to the level of coverage of 2 two sides of divider wall by outworker, and then adjusts isolation
The flue gas ratio of 2 two sides of wall.
By adjusting the flue gas ratio of 2 two sides of divider wall, the two-stage superheater 8 and level-one of adjustable 2 two sides of divider wall
Steam steam temperature in reheater 13.
Specific embodiment two
Present embodiment two and the difference of specific embodiment one be, primary superheater entrance tube panel 10 and level-one
Superheater outlet tube panel 11 is connected and fixed by hanging pipe.
Specific embodiment three
Present embodiment three and the difference of specific embodiment one are that burner hearth 1 includes water screen system, water-cooling wall
System includes Spiral Coil Waterwall 14 and vertical water wall 15, Spiral Coil Waterwall 14 as burner hearth 1 middle part and
Lower part, top of the vertical water wall 15 as burner hearth 1, and between Spiral Coil Waterwall 14 and vertical water wall 15
It is connected by mixing header.
Burner hearth is surrounded by water screen system, which includes two parts, i.e. vertical water wall 15 and spiral
Pipeloop water-cooling wall 14, one mixing header of the two are boundary.
Specific embodiment four
Present embodiment four and the difference of specific embodiment one or three are, go back activation system, the activation system
Including starting separator 19, water storage tank, atmosphere flash vessel and drain tank, the one end and superheater system for starting separator 19 connect
It connects, the other end and water storage tank, atmosphere flash vessel, drain tank are sequentially connected.
Activation system connects water screen system and superheater system, the underrun for boiler.
Specific embodiment five
Present embodiment five and the difference of specific embodiment one or three are, go back combustion system, the combustion system
Including main burner 17 and separation burnout degree SOFA burner 18, main burner 17 and SOFA burner 18 are set under burner hearth
Portion and SOFA burner 18 are located at the top of main burner 17.
Combustion system is set to the corner for the burner hearth that water screen system is surrounded, and flame is fired in freeze profile at the octagonal circle of contact
It burns.
Specific embodiment six
Present embodiment six and the difference of specific embodiment one or three are, further include air preheater 20, cigarette
Road and air duct 22, flue and air duct 22 connect with air preheater 20 and in air duct 22 air by air preheater 20 with
Flue gas heat exchange in flue.
Specific embodiment seven
Present embodiment eight and the difference of specific embodiment one or three be, three-stagesuperheater 9 and final stage reheating
Device 12 is arranged in the high smoke temperature area of burner hearth 1.
Above-mentioned high smoke temperature area is located at the top of the first order heat-transfer surface of burner hearth.
The utility model further includes flue gas recirculation system, is gone out comprising high-temperature flue gas recirculating gas duct 23 and from preheater
The low-temperature flue gas recirculating gas duct that deduster rear pass after mouth flue 16 is drawn.
Claims (7)
1. one kind matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical, including boiler body, the boiler
Economizer system, superheater system and reheater system are equipped in the burner hearth (1) of ontology, which is characterized in that
The top of burner hearth (1) is equipped with divider wall (2), for flue gas to be divided into two-way；The top of divider wall (2) is adjusted equipped with flue gas
Baffle (3), for adjusting the flue gas ratio of divider wall (2) two sides；
Economizer system includes burner hearth economizer (4) and flue economizer (5), and burner hearth economizer (4) and flue economizer (5) are logical
Cross the connection of economizer connecting tube；Burner hearth economizer (4) is set between divider wall (2) and gas proportioning damper (3), flue economizer
(5) it is set in denitration SCR reactor outlet flue (6)；The furnace internal heating surface of the economizer system is in-line arrangement；
Superheater system include primary superheater (7), two-stage superheater (8) and three-stagesuperheater (9) and primary superheater (7),
Two-stage superheater (8) passes sequentially through superheater connecting tube with three-stagesuperheater (9) and connects；
Primary superheater (7) includes primary superheater entrance tube panel (10) and primary superheater outlet tube panel (11)；Level-one overheat
Device entrance tube panel (10) is set between burner hearth economizer (4) and gas proportioning damper (3), primary superheater outlet tube panel (11) is set
In burner hearth (1) lower part first order heat-transfer surface at；
Reheater system includes level-one reheater (13) and final reheater (12) and level-one reheater (13) and final reheater
(12) it is connected by reheater connecting tube；
The top of primary superheater outlet tube panel (11) is successively arranged three-stagesuperheater (9), final reheater along the flow direction of flue gas
(12) and divider wall (2), the side of the divider wall (2) are equipped with two-stage superheater (8), the other side equipped with level-one reheater (13).
2. one kind according to claim 1 matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical,
It is characterized in that, primary superheater entrance tube panel (10) and primary superheater outlet tube panel (11) are connected and fixed by hanging pipe.
3. one kind according to claim 1 matches the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical,
It is characterized in that, burner hearth (1) includes water screen system, water screen system includes Spiral Coil Waterwall (14) and vertical tube coil water
Cold wall (15), middle part and lower part of the Spiral Coil Waterwall (14) as burner hearth (1), vertical water wall (15) are used as burner hearth
(1) top, and connected between Spiral Coil Waterwall (14) and vertical water wall (15) by mixing header.
4. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical
Furnace, which is characterized in that further include activation system, the activation system include starting separator (19), water storage tank, atmosphere flash vessel and
Drain tank, one end of starting separator (19) connect with superheater system, the other end and water storage tank, atmosphere flash vessel, drain tank
It is sequentially connected.
5. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical
Furnace, which is characterized in that further include combustion system, which includes main burner (17) and separation burnout degree SOFA burner
(18), main burner (17) and SOFA burner (18) are set on the lower part of burner hearth and SOFA burner (18) is located at main burning
The top of device (17).
6. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical
Furnace, which is characterized in that further include air and gas system, which includes air preheater (20), flue and air duct (22), flue
It is connect with air preheater (20) with air duct (22) and air duct (22) interior air passes through cigarette in air preheater (20) and flue
Gas heat exchange.
7. according to claim 1 or 3 a kind of with the tower damper adjustment lignite pot of fan mill high capacity highly effective ultra supercritical
Furnace, which is characterized in that three-stagesuperheater (9) and final reheater (12) are arranged in the high smoke temperature area of burner hearth (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820850434.4U CN208365496U (en) | 2018-05-31 | 2018-05-31 | One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820850434.4U CN208365496U (en) | 2018-05-31 | 2018-05-31 | One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical |
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| Publication Number | Publication Date |
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| CN208365496U true CN208365496U (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820850434.4U Active CN208365496U (en) | 2018-05-31 | 2018-05-31 | One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518664A (en) * | 2018-05-31 | 2018-09-11 | 哈尔滨锅炉厂有限责任公司 | One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical |
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2018
- 2018-05-31 CN CN201820850434.4U patent/CN208365496U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518664A (en) * | 2018-05-31 | 2018-09-11 | 哈尔滨锅炉厂有限责任公司 | One kind matching the tower damper adjustment boiler using brown coal of fan mill high capacity highly effective ultra supercritical |
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