CN107975783A - The ciculation fluidized steam boiler of anthracite - Google Patents
The ciculation fluidized steam boiler of anthracite Download PDFInfo
- Publication number
- CN107975783A CN107975783A CN201711217263.8A CN201711217263A CN107975783A CN 107975783 A CN107975783 A CN 107975783A CN 201711217263 A CN201711217263 A CN 201711217263A CN 107975783 A CN107975783 A CN 107975783A
- Authority
- CN
- China
- Prior art keywords
- wall
- flue
- air
- cyclone separator
- burner hearth
- 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
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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
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0015—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type
- F22B31/003—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes surrounding the bed or with water tube wall partitions
- F22B31/0038—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes surrounding the bed or with water tube wall partitions with tubes in the bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
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- 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)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Anthracite circulating sulfuration steam boiler, it includes burner hearth, air supply device, cyclone separator, material-returning device, flue, steam pipework and superheater pipeline；Air supply device includes air preheater and air hose；Cyclone separator is gradually reduced from its internal diameter of upper end to lower end or the diminution of discontinuous, and the upper end is equipped with air inlet, its top is equipped with air outlet, its lower end is equipped with discharge port, its air inlet is connected with the outlet flue of burner hearth；Flue one end is bending tubes end, and the other end is smoke evacuation end；The wall of cyclone separator is double-wall structure, including the inner wall that insulating layer outer wall and compact arranged water cooling tube surround, outer wall are located at the outside of inner wall.The present invention provides a kind of higher clean coal combustion technology of industrialization degree, solves the problems, such as that the existing recirculating fluidized bed steam boiler thermal efficiency is low.
Description
Technical field
The present invention relates to steam boiler, is particularly a kind of ciculation fluidized steam boiler of anthracite.
Background technology
Recirculating fluidized bed is among a large amount of solid particles are suspended in the fluid of movement, so that particle has certain of fluid
A little appearance features, this solid contact condition of stream are known as fluidization of solid.Recirculating fluidized bed is more than the free settling of particle in gas velocity
Fluidized under speed, particle is taken out of by air-flow, and after gas is separated with solid, solid is recycled back in bed again.
Recirculating fluidized bed has many purposes in the industry, such as catalytic cracking and steam boiler.Existing recycle stream
It is the flue gas heat heating pipe discharged by combustion chamber to change bed steam boiler, so as to obtain steam or hot water.Recirculating fluidized bed
Including combustion chamber, gas-solid separator and returning charge component, fuel and flue gas in combustion chamber and gas-solid separator are with larger
Heat, although these heats largely enter flue, for heating water, also sub-fraction is by various wall of a container faces
Absorb, be dispersed into the external world, do not obtain effective Collection utilization, its thermal efficiency is relatively low.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, and a kind of anthracite circulating sulfuration steam boiler is provided, it
A kind of higher clean coal combustion technology of industrialization degree is provided, solves the existing recirculating fluidized bed steam boiler thermal efficiency
The problem of low.
The technical scheme is that：Anthracite circulating sulfuration steam boiler, including burner hearth, air supply device, cyclonic separation
Device, material-returning device, flue, steam pipework and superheater pipeline；
Burner hearth is arranged vertically and the sleeve shaped of upper and lower ends opening, its bottom side of the wall is equipped with fuel feed inlet and fuel returning charge
Mouthful, its bottom is equipped with air distribution plate, and the upper end is equipped with outlet flue；
Air supply device includes air preheater and air hose, and air preheater one end is connected by pipeline with source of the gas, and the other end leads to
Cross air hose and be connected to burner hearth bottom opening；
Cyclone separator is gradually reduced from its internal diameter of upper end to lower end or the diminution of discontinuous, and the upper end is equipped with air inlet, it is pushed up
Portion is equipped with air outlet, its lower end is equipped with discharge port, its air inlet is connected with the outlet flue of burner hearth；
Material-returning device one end is connected on the discharge port of cyclone separator, and the other end is connected in the fuel returning charge mouth of burner hearth, its
For the solid fuel isolated in cyclone separator to be sent back in burner hearth；
Flue one end is bending tubes end, and the other end is smoke evacuation end, outlet air of its bending tubes end direct or indirect connection in cyclone separator
On mouth；
Steam pipework is located inside flue close to one end of bending tubes end to absorb the flue gas heat in flue；
Superheater pipeline is located inside flue close to the one end at smoke evacuation end to absorb the flue gas heat in flue；
The wall of cyclone separator is double-wall structure, including the inner wall that insulating layer outer wall and compact arranged water cooling tube surround, outside
Wall is located at the outside of inner wall.
Further technical solution is the present invention：Cyclone separator is internally provided with two cylindrical cavities communicated, its footpath
It is in two intersecting circles to section.
Further technical solution is the present invention：It further includes water cooling pipeline, and water cooling pipeline is close to inboard wall of burner hearth and/or outer
Wall is set to absorb the heat on hearth wall.
The present invention has the following advantages that compared with prior art：
A kind of higher clean coal combustion technology of industrialization degree is provided, solves existing recirculating fluidized bed steam boiler heat
The problem of efficiency is low.The inner wall of cyclone separator is surrounded by compact arranged water cooling tube, and heat can be fully absorbed, so that by water
Water heating in cold pipe；Inboard wall of burner hearth and/or outer wall are equipped with water cooling pipeline, can fully absorb the heat of hearth wall, so that will
Water heating in water cooling pipeline.Enter flue from the flue gas of cyclone separator discharge, successively by steam pipework and superheater pipeline
Absorb, to produce steam and hot water.
Below in conjunction with figure, the invention will be further described with embodiment.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1.
Embodiment
Embodiment 1：
As shown in Figure 1, 2, anthracite circulating sulfuration steam boiler, it includes burner hearth 1, air supply device, cyclone separator 3, returning charge
Device 4, flue 5, steam pipework 6, superheater pipeline 7 and water cooling pipeline 8.
Burner hearth 1 is arranged vertically and the sleeve shaped of upper and lower ends opening, its bottom side of the wall is equipped with 11 He of fuel feed inlet
Fuel returning charge mouth 12, its bottom are equipped with air distribution plate 13, and the upper end is equipped with outlet flue 14.
Air supply device includes air preheater and air hose 21, and air preheater one end is connected by pipeline with source of the gas, separately
One end is connected at 1 bottom opening of burner hearth by air hose 21.
Cyclone separator 3 is gradually reduced from its internal diameter of upper end to lower end or the diminution of discontinuous, and the upper end is equipped with air inlet
31, its top is equipped with air outlet 32, its lower end is equipped with discharge port 33, its air inlet 31 is connected with the outlet flue 14 of burner hearth 1.Whirlwind
The wall of separator 3 is double-wall structure, including the inner wall 35 that insulating layer outer wall 34 and compact arranged water cooling tube surround, outer wall 34
Positioned at the outside of inner wall 35.
4 one end of material-returning device is connected on the discharge port 33 of cyclone separator 3, and the fuel that the other end is connected to burner hearth 1 returns
In material mouth 12.
5 one end of flue is bending tubes end, and the other end is smoke evacuation end, its bending tubes end direct or indirect connection is in cyclone separator 3
Air outlet 32 on.
Steam pipework 6 is located at the inside of flue 5 close to one end of bending tubes end to absorb the flue gas heat in flue 5.
Superheater pipeline 7 is located at the inside of flue 5 close to the one end at smoke evacuation end to absorb the flue gas heat in flue 5.
Water cooling pipeline 8 is close to 1 inner wall of burner hearth and/or outer wall is set to absorb the heat on 1 wall of burner hearth.
It is preferred that cyclone separator 3 is internally provided with two cylindrical cavities communicated, its radial section is in two intersecting circles
Shape.The intersection of 31 two cylindrical cavities of face of air inlet of cyclone separator 3.The flue gas of 1 outlet flue 14 of burner hearth discharge leads to
After crossing 3 inner cavity of the entrance cyclone separator of air inlet 31, just it is divided into two strands of air-flows, is flowed along the cavity wall of two cylindrical cavities,
Solid particle is because proportion sinks compared with king bolt, flue gas then spiral.
Sketch the workflow of the present invention：Anthracite contains big calorimetric in burner hearth 1 in burning fluidized state, its generation
The flue gas of amount, and cyclone separator 3 is discharged into by outlet flue 14, flue gas solid and gas in cyclone separator 3 separates, solid
(bituminous coal particle) returns to burner hearth by material-returning device 4, and gas (high heat smoke) enters flue 5, successively by steam pipework 6 and overheat
Water in device pipeline 7 absorbs heat.
Claims (3)
1. anthracite circulating sulfuration steam boiler, including burner hearth (1), air supply device, cyclone separator (3), material-returning device (4),
Flue (5), steam pipework (6) and superheater pipeline (7)；
Burner hearth (1) is arranged vertically and the sleeve shaped of upper and lower ends opening, its bottom side of the wall be equipped with fuel feed inlet (11) and
Fuel returning charge mouth (12), its bottom are equipped with air distribution plate (13), and the upper end is equipped with outlet flue (14)；
Air supply device includes air preheater and air hose (21), and air preheater one end is connected by pipeline with source of the gas, another
End is connected at burner hearth (1) bottom opening by air hose (21)；
Cyclone separator (3) is gradually reduced from its internal diameter of upper end to lower end or the diminution of discontinuous, and the upper end is equipped with air inlet
(31), its top is equipped with air outlet (32), its lower end is equipped with discharge port (33), the outlet flue of its air inlet (31) and burner hearth (1)
(14) connect；
Material-returning device (4) one end is connected on the discharge port (33) of cyclone separator (3), and the other end is connected to the combustion of burner hearth (1)
Expect in returning charge mouth (12)；
Flue (5) one end is bending tubes end, and the other end is smoke evacuation end, its bending tubes end direct or indirect connection is in cyclone separator (3)
Air outlet (32) on；
Steam pipework (6) is located at flue (5) inside close to one end of bending tubes end to absorb the flue gas heat in flue (5)；
Superheater pipeline (7) is located at flue (5) inside close to the one end at smoke evacuation end to absorb the flue gas heat in flue (5)；
It is characterized in that：The wall of cyclone separator (3) is double-wall structure, including insulating layer outer wall (34) and compact arranged water cooling
The inner wall (35) that pipe surrounds, outer wall (34) are located at the outside of inner wall (35).
2. anthracite circulating sulfuration steam boiler as claimed in claim 1, it is characterized in that：Cyclone separator (3) is internally provided with
Two cylindrical cavities communicated, its radial section are in two intersecting circles.
3. anthracite circulating sulfuration steam boiler as claimed in claim 2, it is characterized in that：It further includes water cooling pipeline (8), water
Cold pipeline (8) is close to burner hearth (1) inner wall and/or outer wall is set to absorb the heat on burner hearth (1) wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217263.8A CN107975783A (en) | 2017-11-28 | 2017-11-28 | The ciculation fluidized steam boiler of anthracite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217263.8A CN107975783A (en) | 2017-11-28 | 2017-11-28 | The ciculation fluidized steam boiler of anthracite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107975783A true CN107975783A (en) | 2018-05-01 |
Family
ID=62012134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711217263.8A Pending CN107975783A (en) | 2017-11-28 | 2017-11-28 | The ciculation fluidized steam boiler of anthracite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975783A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2463055Y (en) * | 2001-01-10 | 2001-12-05 | 国家电力公司热工研究院 | Cooling cyclone separator |
| CN101786050A (en) * | 2009-10-09 | 2010-07-28 | 哈尔滨工业大学 | Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section |
| WO2012113985A1 (en) * | 2011-02-24 | 2012-08-30 | Foster Wheeler Energia Oy | Circulating fluidized bed boiler having two external heat exchanger for hot solids flow |
| CN202598496U (en) * | 2012-05-18 | 2012-12-12 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler containing water-cooled cyclone separator |
| CN205316303U (en) * | 2015-12-31 | 2016-06-15 | 山东恒涛节能环保有限公司 | Circulating fluidized bed boiler |
| CN205361692U (en) * | 2015-12-24 | 2016-07-06 | 上海锅炉厂有限公司 | Water -cooled or vapour cold type cyclone of modular |
-
2017
- 2017-11-28 CN CN201711217263.8A patent/CN107975783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2463055Y (en) * | 2001-01-10 | 2001-12-05 | 国家电力公司热工研究院 | Cooling cyclone separator |
| CN101786050A (en) * | 2009-10-09 | 2010-07-28 | 哈尔滨工业大学 | Water-cooled or air-cooled high-temperature horizontal cyclone separator of circulating fluidized bed with accelerating section |
| WO2012113985A1 (en) * | 2011-02-24 | 2012-08-30 | Foster Wheeler Energia Oy | Circulating fluidized bed boiler having two external heat exchanger for hot solids flow |
| CN202598496U (en) * | 2012-05-18 | 2012-12-12 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler containing water-cooled cyclone separator |
| CN205361692U (en) * | 2015-12-24 | 2016-07-06 | 上海锅炉厂有限公司 | Water -cooled or vapour cold type cyclone of modular |
| CN205316303U (en) * | 2015-12-31 | 2016-06-15 | 山东恒涛节能环保有限公司 | Circulating fluidized bed boiler |
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Application publication date: 20180501 |
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