CN207815302U - A kind of cycles, economized fluidized-bed combustion boiler - Google Patents
A kind of cycles, economized fluidized-bed combustion boiler Download PDFInfo
- Publication number
- CN207815302U CN207815302U CN201721819556.9U CN201721819556U CN207815302U CN 207815302 U CN207815302 U CN 207815302U CN 201721819556 U CN201721819556 U CN 201721819556U CN 207815302 U CN207815302 U CN 207815302U
- Authority
- CN
- China
- Prior art keywords
- air
- fluidized
- distribution plate
- economized
- cycles
- 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.)
- Active
Links
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model is related to Sector of Cfb Boilers, more particularly to a kind of cycles, economized fluidized-bed combustion boiler, its structure includes burner hearth, run coal bin, air compartment, air distribution plate, primary air fan, smoke discharge tube, separator, returning charge leg, air-introduced machine, overfire air fan, fluidized air blower, it is placed with blast cap in the plate face of air distribution plate, the spray orifice of blast cap is tilted and is dried towards the air distribution plate, close to the spray orifice larger setting of the blast cap at air distribution plate edge, to prevent blast cap abrasion from blocking, and the first current equalizer is equipped in air hose, air compartment is equipped with the second current equalizer, the air flow method of the circulating fluidized bed boiler is uniform, the energy consumption of wind turbine can be reduced and reduce parts depreciation.
Description
Technical field
The utility model is related to Sector of Cfb Boilers, and in particular to a kind of cycles, economized fluidized-bed combustion boiler.
Background technology
Currently, the type of circulating fluidized bed boiler is various, the thermal efficiency is also distinguished larger：There is the heat up to 88% -90%
Efficiency also has the thermal efficiency less than 65%, it is seen then that different recirculating fluidized bed pots, there is also larger differences for specific consumption.Its
In, pressure fan is to ensure that the critical component of circulating fluidized bed boiler normal operation, the power consumption of pressure fan have up to 12kwh/ tons
Vapour, low is also required to 6kwh/ tons of vapour, it is seen that the electric energy consumption rate of pressure fan also occupies larger specific consumption.Therefore, there is an urgent need for changing
Into the air inlet system of circulating fluidized bed boiler, to reduce the energy consumption of wind turbine, to improve the energy-efficient performance of circulating fluidized bed boiler.
Invention content
For the prior art there are above-mentioned technical problem, the utility model aim is to provide a kind of cycles, economized fluid bed
The air flow method of boiler, the circulating fluidized bed boiler is uniform, can reduce the energy consumption of wind turbine and reduce parts depreciation.
For achieving the above object, following technical scheme is provided：
A kind of cycles, economized fluidized-bed combustion boiler is provided, including erect the burner hearth of setting, the run coal bin that is connect with the burner hearth,
Air compartment, the air distribution plate that is connect with the air inlet of the air compartment set on the burner hearth bottom, the bottom surface of the air distribution plate is connected to one
Air quantity is blowed to the air distribution plate by secondary wind turbine, the primary air fan by air hose, and the upper end of the burner hearth sets that there are two flue gases
Discharge pipe, described two discharge smoke pipes are respectively connected with separator, and the one end of the separator is connected to catalytic tower, the other end
Portion is connected to returning charge leg, and the returning charge leg leads to the lower end of the burner hearth, and the catalytic tower is equipped with for extracting described urge out
Change the air-introduced machine of the flue gas in reaction tower, the air outlet of the air-introduced machine is connected with overfire air fan, and the overfire air fan is connected to
Flue gas in the catalytic tower is simultaneously blown into the burner hearth by the burner hearth medial end portions；
The catalytic tower erects setting, and the top of the catalytic tower is connect with the separator, the catalysis
The bottom of reaction tower is connect with the air-introduced machine, includes the hyperthermia and superheating set gradually from top to bottom in the catalytic tower
Device, low temperature superheater, economizer, the preheating of Secondary Air sky, First air high temperature section sky preheater, Secondary Air low-temperature zone sky preheater；
The junction of the returning charge leg and the separator is equipped with fluidized air blower；
The plate face of the air distribution plate is placed with blast cap, and the spray orifice of the blast cap is tilted and dried towards the air distribution plate, leans on
The spray orifice larger setting of the blast cap at the nearly air distribution plate edge.
The first current equalizer is equipped in the air hose, the air compartment is equipped with the second current equalizer.
Wherein, there are two the run coal bin is set, two run coal bins are all connected to the bottom of the burner hearth.
Wherein, the wall surface of the burner hearth is fin panel casing, and the separator is Adiabatic Cyclone separator.
Wherein, the height of the recirculating fluidized bed is 8 meters.
Wherein, the outside of the recirculating fluidized bed is equipped with aseismic frame, and the aseismic frame is all steel knot for being resistant to 8 grades of earthquakes
Structure.
Wherein, the spray orifice inclination of the blast cap is opened in the blast cap wall surface, and the air outlet of spray orifice is towards the cloth wind
Plate.
Wherein, first current equalizer includes flow-guiding screen, and the mesh diameter of the flow-guiding screen is 2~3cm, the water conservancy diversion
Net is filled at the air outlet of the air hose..
Wherein, second current equalizer includes distributing fin, and the distributing fin is set to the inner wall of the air compartment.
Wherein, the primary air fan is two, and air quantity is converged and from the bottom of the air distribution plate by described two primary air fans
Face blows to the blast cap.
Wherein, there are three the fluidized air blower is set, Fluidization wind rate is converged and from the returning charge by three fluidized air blowers
Leg and the both sides of the separator junction introduce Fluidization wind rate.
The beneficial effects of the utility model：
(1) a kind of cycles, economized fluidized-bed combustion boiler of the utility model is equipped with the first current equalizer in air hose so that into
General mood flow distribution is uniform, does not have the second current equalizer in air compartment so that the air inlet uniformity for blowing to burner hearth, to ensure that air inlet
The uniformity, and then prevent air-flow to form dead angle in air hose or air compartment so that the problem of windage loss, improve the profit of air inlet
With rate, and then fan energy consumption is reduced, reaches energy-efficient effect.
(2) a kind of cycles, economized fluidized-bed combustion boiler of the utility model, blast cap is improved so that the spray orifice blowout of blast cap
Distinguished and admirable oblique lower section, without directly blowing to neighbours' blast cap, the problem of eliminating blast cap abrasion, be prematured by solids；In addition, being tilted towards
Lower blowing avoids excessively high wind speed and directly brings a large amount of fine particles into burner hearth so that the problem of high fume temperature, saves
Energy consumption has equally reached energy-efficient effect.
(3) a kind of cycles, economized fluidized-bed combustion boiler of the utility model, each equipment setting is compact, makes full use of waste heat,
Save the energy consumption of entire boiler.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of cycles, economized fluidized-bed combustion boiler of the utility model；
Reference numeral：
Burner hearth --- 1；Run coal bin --- 2；Air compartment --- 3；Air distribution plate --- 4；Primary air fan --- 5；Air hose --- 6；
Smoke discharge tube --- 7；Catalytic reactor --- 8, high temperature superheater --- 81, low temperature superheater --- 82, economizer ---
83, Secondary Air sky preheats --- 84, First air high temperature section sky preheater --- 85, Secondary Air low-temperature zone sky preheater --- 86；
Returning charge leg --- 9；Air-introduced machine --- 10；Overfire air fan --- 11；Fluidized air blower --- 12；Blast cap --- 13；First stream fills
Set --- 14；Second current equalizer --- 15；Separator --- 16.
Specific implementation mode
The utility model is described in detail below in conjunction with specific embodiment and attached drawing.
Embodiment.
A kind of cycles, economized fluidized-bed combustion boiler of the present embodiment, as shown in Figure 1, burner hearth 1 and burner hearth including erectting setting
The run coal bin 2 of 1 connection, the air compartment 3 set on 1 bottom of burner hearth, the air distribution plate 4 that is connect with the air inlet of air compartment 3, air distribution plate 4
Bottom surface is connected to primary air fan 5, and air quantity is blowed to air distribution plate 4 by primary air fan 5 by air hose 6, and subsequently into air compartment 3, air compartment 3 is by wind
Amount blows to burner hearth 6.The upper end of burner hearth 6 is set there are two smoke discharge tube 7, and two discharge smoke pipes 7 are respectively connected with separator 16, point
One end from device 16 is connected to catalytic tower 8, and the other end is connected to returning charge leg 9, and returning charge leg 9 leads to the lower end of burner hearth 1, urges
Change reaction tower 8 equipped with the air-introduced machine 10 for extracting the flue gas in catalytic tower 8 out, the air outlet of air-introduced machine 10 is connected with two
Secondary wind turbine 11, overfire air fan 11 is connected to 1 medial end portions of burner hearth and the flue gas in catalytic tower 8 is blown into burner hearth 1, from regulating stove
1 combustion heat point height of thorax.
Catalytic tower 8 erects setting, and the top of catalytic tower 8 is connect with separator 16, the bottom of catalytic tower 8
Connect with air-introduced machine 10, include in catalytic tower 8 high temperature superheater 81 set gradually from top to bottom, low temperature superheater 82,
Secondary Air sky preheating 83, First air high temperature section sky preheater 84, Secondary Air low-temperature zone sky preheater 85, to be fully conducive to boiler
Waste heat.Returning charge leg 9 and the junction of separator 16 are set to fluidized air blower 12, ensure to fluidize when bed material returning charge.
The plate face of air distribution plate 4 is placed with blast cap 13, and the spray orifice of blast cap 13 tilts and towards air distribution plate 4, neighbouring to prevent
The spray orifice of blast cap is by distinguished and admirable abrasion, close to the spray orifice larger setting of the blast cap at 4 edge of air distribution plate, to prevent in air distribution plate
4 windrows, in order to avoid cause coking.
It is equipped with the first current equalizer 14 in air hose 6, air compartment 3 is equipped with the second current equalizer 15, the first current equalizer 14 and the
Two current equalizers 15 make air-flow be uniformly distributed, and improve the utilization ratio of air quantity.
In the present embodiment, there are two run coal bin 2 is set, two run coal bins are all connected to the bottom of the burner hearth, to ensure to supply
Coal amount.
In the present embodiment, the wall surface of burner hearth 1 is fin panel casing, and separator 16 is Adiabatic Cyclone separator, is improved entire
The capacity usage ratio of boiler.
In the present embodiment, the height of the boiler is 8 meters, ensures the power capability of boiler.
In the present embodiment, the outside of the boiler is equipped with aseismic frame, and the aseismic frame is all steel knot for being resistant to 8 grades of earthquakes
Structure ensures the stability of boiler, improves the security performance of boiler.
In the present embodiment, the inclination of the spray orifice of blast cap 13 is opened on blast cap 13, and the air outlet of spray orifice is towards air distribution plate 4,
Consequently facilitating air quantity inclination is made to blow to air distribution plate 4.
In the present embodiment, the first current equalizer 14 includes flow-guiding screen, to make air-flow evenly into air distribution plate 4, water conservancy diversion
The mesh diameter of net is 2~3cm, to play the effect of water conservancy diversion, and does not influence air quantity, flow-guiding screen is filled in going out for the air hose 6
At air port.
In the present embodiment, second current equalizer 15 includes distributing fin, and the distributing fin is set to the air compartment
Inner wall forms dead angle to prevent air quantity heap aweather chamber interior walls.
In the present embodiment, the primary air fan 5 is two, and air quantity is converged and from air distribution plate 4 by described two primary air fans 5
Bottom surface blow to blast cap 16, two primary air fans 5 are to ensure boiler wind.
In the present embodiment, there are three fluidized air blower 12 is set, Fluidization wind rate is converged and from institute by three fluidized air blowers 12
It states returning charge leg 9 and the both sides of the separator junction introduces Fluidization wind rate, improve the fluidization efficiency of bed material.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (10)
1. a kind of cycles, economized fluidized-bed combustion boiler, it is characterized in that：Including the burner hearth for erectting setting, the raw coal being connect with the burner hearth
Storehouse, the air compartment set on the burner hearth bottom, the air distribution plate that is connect with the air inlet of the air compartment, the bottom surface of the air distribution plate is connected to
Air quantity is blowed to the air distribution plate by primary air fan, the primary air fan by air hose, and the upper end of the burner hearth sets that there are two cigarettes
Gas discharge pipe, described two smoke discharge tubes are respectively connected with separator, and the one end of the separator is connected to catalytic tower, separately
One end is connected to returning charge leg, and the returning charge leg leads to the lower end of the burner hearth, and the catalytic tower is equipped with for extracting out
The air-introduced machine of the flue gas in catalytic tower is stated, the air outlet of the air-introduced machine is connected with overfire air fan, and the overfire air fan connects
It is connected to the burner hearth medial end portions and the flue gas in the catalytic tower is blown into the burner hearth；
The catalytic tower erects setting, and the top of the catalytic tower is connect with the separator, the catalysis reaction
The bottom of tower is connect with the air-introduced machine, includes the high temperature superheater set gradually from top to bottom in the catalytic tower, low
Warm superheater, economizer, the preheating of Secondary Air sky, First air high temperature section sky preheater, Secondary Air low-temperature zone sky preheater；
The junction of the returning charge leg and the separator is equipped with fluidized air blower；
The plate face of the air distribution plate is placed with blast cap, and the spray orifice of the blast cap is tilted and dried towards the air distribution plate, close to institute
The spray orifice larger setting of the blast cap at air distribution plate edge is stated,
The first current equalizer is equipped in the air hose, the air compartment is equipped with the second current equalizer.
2. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：There are two the run coal bin is set,
Two run coal bins are all connected to the bottom of the burner hearth.
3. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The wall surface of the burner hearth is membrane type
Water-cooling wall, the separator are Adiabatic Cyclone separators.
4. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The height of the recirculating fluidized bed is
8 meters.
5. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The outside of the recirculating fluidized bed is set
It is the full steel structure for being resistant to 8 grades of earthquakes to have aseismic frame, the aseismic frame.
6. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The spray orifice inclination of the blast cap is opened
Set on the blast cap wall surface, and the air outlet of spray orifice is towards the air distribution plate.
7. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：First current equalizer includes
The mesh diameter of flow-guiding screen, the flow-guiding screen is 2~3cm, and the flow-guiding screen is filled at the air outlet of the air hose.
8. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：Second current equalizer includes
Distributing fin, the distributing fin are set to the inner wall of the air compartment.
9. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The primary air fan is two,
Air quantity is converged and blows to the blast cap from the bottom surface of the air distribution plate by described two primary air fans.
10. a kind of cycles, economized fluidized-bed combustion boiler according to claim 1, it is characterized in that：The fluidized air blower is equipped with three
A, Fluidization wind rate is converged and introduced from the both sides of the returning charge leg Yu the separator junction by three fluidized air blowers to flow
Change air quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721819556.9U CN207815302U (en) | 2017-12-20 | 2017-12-20 | A kind of cycles, economized fluidized-bed combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721819556.9U CN207815302U (en) | 2017-12-20 | 2017-12-20 | A kind of cycles, economized fluidized-bed combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207815302U true CN207815302U (en) | 2018-09-04 |
Family
ID=63329943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721819556.9U Active CN207815302U (en) | 2017-12-20 | 2017-12-20 | A kind of cycles, economized fluidized-bed combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207815302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289462A (en) * | 2022-07-25 | 2022-11-04 | 清华大学 | Adjusting structure of circulating flow rate of circulating fluidized bed boiler |
-
2017
- 2017-12-20 CN CN201721819556.9U patent/CN207815302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289462A (en) * | 2022-07-25 | 2022-11-04 | 清华大学 | Adjusting structure of circulating flow rate of circulating fluidized bed boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105164469B (en) | Include the fluidized-bed combustion boiler of multifunctional inertia gravity separator | |
| CN106051749B (en) | A kind of low nitrogen burning technique based on circulating fluidized bed boiler | |
| CN201526948U (en) | 350 MW supercritical variable pressure operation coal-fired boiler | |
| CN204554801U (en) | Circulating fluid bed boiler secondary air hierarchical arrangement system | |
| CN107101187B (en) | Heating system and heating method for supercritical carbon dioxide boiler | |
| CN207815302U (en) | A kind of cycles, economized fluidized-bed combustion boiler | |
| CN109297015B (en) | Coupling pressurization oxygen-enriched combustion device of circulating fluidized bed/bubbling fluidized bed | |
| CN205014343U (en) | W flame boiler | |
| CN109114546A (en) | A kind of quick load change circulating fluidized bed boiler | |
| CN106838889A (en) | A kind of CFBB with interior circulation ash heat exchanger | |
| CN103697467B (en) | Method for coal slime combustion of circulating fluidized bed boiler | |
| CN205351944U (en) | A drying device that is used for high water capacity powder living beings | |
| CN206094045U (en) | Low -nitrogen combustion's circulating fluidized bed boiler | |
| CN2711540Y (en) | Low circulation multiplying factor low smoke speed intermediate temperature separation circulating fluidized bed boiler | |
| CN206919000U (en) | A kind of differential fluidized-bed boiler system | |
| CN102679309B (en) | 350MW MW supercritical W flame anthracite boiler | |
| CN111167621B (en) | Multistage combined weak vortex low-resistance cyclone preheating system | |
| CN208920042U (en) | A kind of quick load change circulating fluidized bed boiler | |
| CN106122950B (en) | A kind of circulating fluidized bed boiler of low nitrogen burning | |
| CN207990606U (en) | A kind of boiler is for exhaust system | |
| CN103571512A (en) | Thermal gas flow circulating type winnowed coal humidifying process for indirectly utilizing waste gas of coke oven flue | |
| CN204943519U (en) | A kind of dry slag-removing machine hot blast that reclaims reduces the device and equipment thereof that burner hearth bottom inorganization leaks out | |
| CN205402649U (en) | Living beings fluidized bed boiler | |
| CN107084386A (en) | A kind of integrated gasification fired boiler system of biomass | |
| CN208418710U (en) | It is a kind of for circulating fluidized bed boiler two, the circulating ventilation equipment of tertiary air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |