CN106642052A - Fluidized bed boiler - Google Patents
Fluidized bed boiler Download PDFInfo
- Publication number
- CN106642052A CN106642052A CN201710006337.7A CN201710006337A CN106642052A CN 106642052 A CN106642052 A CN 106642052A CN 201710006337 A CN201710006337 A CN 201710006337A CN 106642052 A CN106642052 A CN 106642052A
- Authority
- CN
- China
- Prior art keywords
- steam
- boiler
- heat
- exchanging chamber
- stove
- 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
-
- 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
-
- 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
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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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
The invention provides a fluidized bed boiler. The fluidized bed boiler comprises a first boiler body and a second boiler body, the first boiler body comprises a first steam turbine which is used for driving the second boiler body and driven by steam generated by the first boiler body, and the second boiler body comprises a second steam turbine. The fluidized bed boiler adopts a structure comprising double boiler bodies an double heat exchange chambers, hot steam in the first boiler body can be used for driving the second boiler body to operate, the steam of the second boiler body is used for the first heat exchange chamber, and the first heat exchange chamber can transfer the steam into the second heat exchange chamber to form a heat energy transfer line, so that energy consumption is avoided.
Description
Technical field
The present invention relates to equipment of industrial product technical field, more particularly to a kind of fluidized-bed combustion boiler.
Background technology
Technology of Circulating Fluidized Bed Boiler is the high-efficiency low-pollution cleaning burning branch art for developing rapidly in recent ten years.State
This technology the field such as utilizes to have obtained widespread commercial use in station boiler, Industrial Boiler and offal treatment on border, and
Develop to the large circulating fluidized bed boiler of hundreds of thousands multikilowatt scale；Domestic research, development and application in this respect also by
Gradually rise, among existing up to a hundred CFBBs put into operation or manufacturing.Following several years will be ciculation fluidized
The important period that bed is developed rapidly.
CFBB of the prior art, including stove, it is used for combust carbonaceous fuel；At least one outlet is logical
Road, its top for being connected to stove is used to from stove remove the flue gas and solid particle of fuel combustion generation, and each exit passageway is provided with
Particle separator, particle separator attaches the flue gas for removing solid particle for transmission with flue and goes out from boiler；With
And recurrent canal, for transmitting detached solid particle to the bottom of stove, the recurrent canal is provided with seals, heat and hands over recurrent canal
Change room, liftway and overflow pipe, wherein the solid particle for leaving seals be directed into the top of heat-exchanging chamber and
Stove is directed to by liftway from the bottom of heat-exchanging chamber or is directly directed to by overflow pipe from the top of heat-exchanging chamber
Stove.
The CFBB of such structure, the flue gas after being heated is gone out from boiler, and heat-exchanging chamber below
Need to add vapours again again, generate the link of twice energy dissipation, design very not scientific and reasonable.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
For this purpose, it is an object of the present invention to proposing a kind of fluidized-bed combustion boiler.
A kind of fluidized-bed combustion boiler according to embodiments of the present invention, including stove, it is used for combust carbonaceous fuel；At least one goes out
Mouth passage, its top for being connected to stove is used to from stove remove the flue gas and solid particle of fuel combustion generation, each exit passageway
Particle separator is provided with, particle separator attaches the flue gas for removing solid particle for transmission with flue and goes out from boiler
Go；And recurrent canal, for transmitting detached solid particle to the bottom of stove, the recurrent canal is provided with air seal to recurrent canal
Part, heat-exchanging chamber, liftway and overflow pipe, wherein the solid particle for leaving seals is directed into heat-exchanging chamber
Top and stove is directed to by liftway from the bottom of heat-exchanging chamber or directly from the top of heat-exchanging chamber passes through overflow pipe
It is directed to stove, the stove includes the first boiler and the second boiler, first boiler includes the first steam turbine, described second
Boiler includes the second steam turbine, and first steam turbine is used to drive second boiler, the first steam whirlpool
The steam drive that turbine is produced by first boiler.
An example of the invention, the particle separator includes at least one solid removal device, the solid
Removal device is connected with least one cooled screw device, and the cooled screw device sealing is arranged, and for control the solid is passed through
The solids discharge rate of removal device, and for the solid and agglomerate of cooling discharge.
An example of the invention, the heat-exchanging chamber includes the first heat-exchanging chamber and the second heat-exchanging chamber, described
First heat-exchanging chamber includes the last superheater of the boiler steam cycle of the first boiler, and second heat-exchanging chamber includes second pot
The final reheater of the boiler steam cycle of stove.
Phase transformation is provided with an example of the invention, first heat-exchanging chamber and the second heat-exchanging chamber outer wall
Insulation construction, the phase-transition heat-preserving structure includes soft outer and built-in phase-change material, and the built-in phase-change material is with liquid
Form is present.
An example of the invention, the phase-change material is n-octadecane（C-18）, hexadecane（C-16）Just
The tetradecane（C-14）In any one.
An example of the invention, is provided with steam and returns between first boiler and first steam turbine
Receive valve.
An example of the invention, the Steam Recovery valve includes fluid flow path, vapor flow path and steaming
Vapour controls valve, and the fluid flow path and the vapor flow paths are generally fluidly isolated from one another；The steam control valve is determined
Position can move in the vapor flow path and between the first position and the second position, described in the first position
Steam control valve prevents steam from flowing through, and in the second place, the steam control valve does not hinder steam to flow through.
An example of the invention, the Steam Recovery valve also includes and the magnetic-coupled actuating of the steam control valve
Device, the actuator is used to change the direction of steam.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
Fig. 1 is the schematic diagram of fluidized-bed combustion boiler according to an embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings describing fluidized-bed combustion boiler according to embodiments of the present invention in detail.
As shown in figure 1, a kind of fluidized-bed combustion boiler according to embodiments of the present invention, including stove, it is used for combust carbonaceous fuel；
At least one exit passageway, its top for being connected to stove is used to from stove remove the flue gas and solid particle of fuel combustion generation, often
Individual exit passageway is provided with particle separator, and particle separator attaches the flue gas for removing solid particle for transmission with flue
Go out from boiler；And recurrent canal, for transmitting detached solid particle to the bottom of stove, the recurrent canal is provided with gas to recurrent canal
Body seal, heat-exchanging chamber, liftway and overflow pipe, wherein the solid particle for leaving seals is directed into hot friendship
Change the top of room and stove is directed to or directly from the top of heat-exchanging chamber by overflowing by liftway from the bottom of heat-exchanging chamber
Flow tube road is directed to stove.
The stove includes the first boiler and the second boiler, and first boiler includes the first steam turbine, described second
Boiler includes the second steam turbine, and first steam turbine is used to drive second boiler, the first steam whirlpool
The steam drive that turbine is produced by first boiler.
According to one embodiment of present invention, the particle separator includes at least one solid removal device, described solid
Body removal device is connected with least one cooled screw device, and the cooled screw device sealing is arranged, for control by described solid
The solids discharge rate of body removal device, and for the solid and agglomerate of cooling discharge.In an embodiment of the present invention, particle
Separator at least include two, an outlet channel for being arranged at the first boiler, another is arranged at the outlet of the second boiler
At passage.
According to one embodiment of present invention, the heat-exchanging chamber includes the first heat-exchanging chamber and the second heat-exchanging chamber, institute
Last superheater of first heat-exchanging chamber including the boiler steam cycle of the first boiler is stated, second heat-exchanging chamber includes second
The final reheater of the boiler steam cycle of boiler.
According to one embodiment of present invention, it is provided with phase on first heat-exchanging chamber and the second heat-exchanging chamber outer wall
Become insulation construction, the phase-transition heat-preserving structure includes soft outer and built-in phase-change material, and the built-in phase-change material is with liquid
In the form of.The phase-change material is n-octadecane（C-18）, hexadecane（C-16）And n-tetradecane（C-14）In appoint
Meaning is a kind of.
According to one embodiment of present invention, it is provided with steam between first boiler and first steam turbine
Recovery valve.The Steam Recovery valve includes fluid flow path, vapor flow path and steam control valve, the flow of fluid road
Footpath and the vapor flow paths are generally fluidly isolated from one another；The steam control valve is positioned in the vapor flow path simultaneously
And can move between the first position and the second position, in the first position, the steam control valve prevents steam from flowing through,
The second place, the steam control valve does not hinder steam to flow through.The Steam Recovery valve also includes and the steam control valve magnetic
The actuator of coupling, the actuator is used to change the direction of steam.
Fluidized-bed combustion boiler according to embodiments of the present invention, using double boiler and the structure of double Heat Rooms, the heat of the first boiler
Steam can drive the steam of the operation of the second boiler, the second boiler to be used for the first Heat Room, and the first Heat Room will can steam again
Vapour is transferred to the second Heat Room, defines a thermal energy line of propagation, and energy is not wasted.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more, unless separately
There is clearly specific restriction.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of fluidized-bed combustion boiler, including stove, it is used for combust carbonaceous fuel；At least one exit passageway, it is connected to stove
Top is used to from stove remove the flue gas and solid particle of fuel combustion generation, and each exit passageway is provided with particle separator, particle
Separator attaches the flue gas for removing solid particle for transmission with flue and goes out from boiler；And recurrent canal, recurrent canal
For transmitting detached solid particle to the bottom of stove, the recurrent canal be provided with seals, heat-exchanging chamber, liftway and
Overflow pipe, wherein the solid particle for leaving seals is directed into the top of heat-exchanging chamber and from the bottom of heat-exchanging chamber
Stove is directed to by liftway or directly from the top of heat-exchanging chamber stove is directed to by overflow pipe, it is characterised in that institute
Stove is stated including the first boiler and the second boiler, first boiler includes the first steam turbine, second boiler includes the
Two steam turbines, first steam turbine is used to drive second boiler, and first steam turbine is by described
The steam drive that first boiler is produced.
2. a kind of fluidized-bed combustion boiler according to claim 1, it is characterised in that the particle separator includes at least one
Solid removal device, the solid removal device is connected with least one cooled screw device, and the cooled screw device sealing is arranged,
For the solids discharge rate that control passes through the solid removal device, and for the solid and agglomerate of cooling discharge.
3. a kind of fluidized-bed combustion boiler according to claim 1, it is characterised in that the heat-exchanging chamber includes the first heat exchange
Room and the second heat-exchanging chamber, first heat-exchanging chamber includes the last superheater of the boiler steam cycle of the first boiler, described
Second heat-exchanging chamber includes the final reheater of the boiler steam cycle of the second boiler.
4. a kind of fluidized-bed combustion boiler according to claim 3, it is characterised in that first heat-exchanging chamber and the second heat are handed over
Change on chamber outer wall and be provided with phase-transition heat-preserving structure, the phase-transition heat-preserving structure includes soft outer and built-in phase-change material, institute
State built-in phase-change material to exist in fluid form.
5. a kind of fluidized-bed combustion boiler according to claim 4, it is characterised in that the phase-change material is n-octadecane（C-
18）, hexadecane（C-16）And n-tetradecane（C-14）In any one.
6. a kind of fluidized-bed combustion boiler according to claim 1, it is characterised in that first boiler and first steam
Steam Recovery valve is provided between turbine.
7. a kind of fluidized-bed combustion boiler according to claim 6, it is characterised in that the Steam Recovery valve includes flow of fluid
The usual fluid each other of path, vapor flow path and steam control valve, the fluid flow path and the vapor flow paths
Isolation；The steam control valve is positioned in the vapor flow path and can move between the first position and the second position
Dynamic, in the first position, the steam control valve prevents steam from flowing through, and in the second place, the steam control valve does not hinder
Steam flows through.
8. a kind of fluidized-bed combustion boiler according to claim 7, it is characterised in that the Steam Recovery valve also include with it is described
The magnetic-coupled actuator of steam control valve, the actuator is used to change the direction of steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006337.7A CN106642052A (en) | 2017-01-05 | 2017-01-05 | Fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710006337.7A CN106642052A (en) | 2017-01-05 | 2017-01-05 | Fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106642052A true CN106642052A (en) | 2017-05-10 |
Family
ID=58842609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710006337.7A Pending CN106642052A (en) | 2017-01-05 | 2017-01-05 | Fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106642052A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100563A (en) * | 1987-02-02 | 1988-08-17 | Boc公司 | N-heterocycle-N-(4-piperidyl) acid amides and the constituent of medicine and the application method of this compounds |
| CN88101563A (en) * | 1987-03-23 | 1988-11-30 | 宇部興产株式会社 | Boiler with two fluidised bed |
| CN1132547A (en) * | 1993-10-08 | 1996-10-02 | A.阿尔斯特罗姆公司 | Supercritical steam pressurized circulating fluidized bed boiler |
| CN102215949A (en) * | 2008-11-06 | 2011-10-12 | 福斯特韦勒能源股份公司 | A circulating fluidized bed boiler |
| CN102666365A (en) * | 2009-09-24 | 2012-09-12 | 特拉华资本形成公司 | Magnetically actuated vapor recovery valve |
| CN103562635A (en) * | 2011-02-24 | 2014-02-05 | 福斯特韦勒能源股份公司 | Circulating fluidized bed boiler having two external heat exchanger for hot solids flow |
| CN103868391A (en) * | 2014-04-03 | 2014-06-18 | 东华大学 | Phase change energy storage device of combined plate heat exchanger |
| CN104837549A (en) * | 2012-10-17 | 2015-08-12 | 巴布科克和威尔科克斯能量产生集团公司 | In-bed solids control valve with improved reliability |
-
2017
- 2017-01-05 CN CN201710006337.7A patent/CN106642052A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100563A (en) * | 1987-02-02 | 1988-08-17 | Boc公司 | N-heterocycle-N-(4-piperidyl) acid amides and the constituent of medicine and the application method of this compounds |
| CN88101563A (en) * | 1987-03-23 | 1988-11-30 | 宇部興产株式会社 | Boiler with two fluidised bed |
| CN1132547A (en) * | 1993-10-08 | 1996-10-02 | A.阿尔斯特罗姆公司 | Supercritical steam pressurized circulating fluidized bed boiler |
| CN102215949A (en) * | 2008-11-06 | 2011-10-12 | 福斯特韦勒能源股份公司 | A circulating fluidized bed boiler |
| CN102666365A (en) * | 2009-09-24 | 2012-09-12 | 特拉华资本形成公司 | Magnetically actuated vapor recovery valve |
| CN103562635A (en) * | 2011-02-24 | 2014-02-05 | 福斯特韦勒能源股份公司 | Circulating fluidized bed boiler having two external heat exchanger for hot solids flow |
| CN104837549A (en) * | 2012-10-17 | 2015-08-12 | 巴布科克和威尔科克斯能量产生集团公司 | In-bed solids control valve with improved reliability |
| CN103868391A (en) * | 2014-04-03 | 2014-06-18 | 东华大学 | Phase change energy storage device of combined plate heat exchanger |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170510 |