CN106885236A - A kind of circulating fluidized bed boiler separator gas approach structure - Google Patents
A kind of circulating fluidized bed boiler separator gas approach structure Download PDFInfo
- Publication number
- CN106885236A CN106885236A CN201710278603.1A CN201710278603A CN106885236A CN 106885236 A CN106885236 A CN 106885236A CN 201710278603 A CN201710278603 A CN 201710278603A CN 106885236 A CN106885236 A CN 106885236A
- Authority
- CN
- China
- Prior art keywords
- flue
- separator
- fluidized bed
- bed boiler
- connection
- 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
Links
- 230000001133 acceleration Effects 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- 239000007789 gas Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Classifications
-
- 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
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention relates to a kind of flue structure, specifically a kind of circulating fluidized bed boiler separator gas approach structure belongs to circulation fluidized bed boiler technical field.It includes burner hearth, separator and connection flue, connection flue includes the accelerating sections and diversion section that set gradually, the lateral wall of the accelerating sections and diversion section that connect flue is continuous flat surface, and the madial wall for connecting the diversion section of flue is the flat surface parallel with the lateral wall of connection flue.The present invention carries out rectification into the structure of flue is designed into parallel construction in a certain distance before separator in flue to the flue gas flow rate in flue, it causes that connection flue enters the flue gas flow rate of each point on the section of separator unanimously, mitigates the abrasion to flue gas target area；Simultaneously compared with original structure, the scope of target area also has significant increase, and the efficiency of separator can be improved.
Description
Technical field
The present invention relates to a kind of flue structure, specifically a kind of circulating fluidized bed boiler separator gas approach knot
Structure, belongs to circulation fluidized bed boiler technical field.
Background technology
The all separated device effect such as burning in circulating fluid bed boiler efficiency, desulfuration in furnace efficiency, discharged nitrous oxides are how many
Rate is closely related, improves that efficiency separator Shi Ge research units are consistent with boiler producer is thought.Influence CFBB point
Have much from the factor of device efficiency, the structure of wherein separator inlet flue is a main aspect, and current boiler is all using such as
The structure type that Fig. 1 ~ 3 are illustrated.Fig. 1 uses an accelerating structure, and Fig. 2 employs secondary accelerating structure, and Fig. 3 is employed
The secondary accelerating structure of water conservancy diversion, no matter using above-mentioned which kind of mode, it is more concentrated in the target area that the outside of separator is formed, target
Intensively consequence is to decline separator in area, and the unit scouring intensity that target area receives becomes big, abrasion aggravation, therefore is held
Easily there is potential safety hazard.
The content of the invention
It is an object of the present invention to overcome the above deficiencies, so as to provide a kind of circulating fluidized bed boiler separator entrance
Flue structure, improves the target location and target area scope of sweep of gases separator, can improve separator and mitigate
Erosive wear of the flue gas to target area.
According to the technical scheme that the present invention is provided, a kind of circulating fluidized bed boiler separator gas approach structure includes stove
Thorax, separator and connection flue, are linked into an integrated entity between burner hearth and separator by connecting flue, it is characterized in that：Connection flue
Including the accelerating sections and diversion section that set gradually, the lateral wall of the accelerating sections and diversion section that connect flue is continuous straight table
Face, the madial wall for connecting the diversion section of flue is the flat surface parallel with the lateral wall of connection flue.
Further, the accelerating sections madial wall of connection flue is inclined-plane.
Further, the accelerating sections madial wall of connection flue includes the first acceleration ramp and the second acceleration ramp, and first adds
The bevel angle of fast inclined-plane and the second acceleration ramp is tapered into from burner hearth one end to separator one end.
Further, the accelerating sections madial wall of connection flue is arc surface.
Compared with the prior art the present invention has advantages below：
Simple structure of the present invention, compact, reasonable, the position determination of partition wall and separator during design boiler, burner hearth flue gas is gone out
Mouthful runner into accelerating structure, in flue into the structure of flue is designed into parallel construction to cigarette in a certain distance before separator
Flue gas flow rate in road carries out rectification, and it causes that connection flue enters the flue gas flow rate of each point on the section of separator unanimously, subtracts
The light abrasion to flue gas target area；Simultaneously compared with original structure, the scope of target area also has significant increase, the efficiency of separator
Can be improved.
Brief description of the drawings
Fig. 1 is using a separator inlet flue structure front view for accelerating structure.
Fig. 2 is using the separator inlet flue structure front view of secondary accelerating structure.
Fig. 3 is using the separator inlet flue structure front view of the secondary accelerating structure of water conservancy diversion.
Fig. 4 is the structure chart of embodiments of the invention one.
Fig. 5 is the structure chart of embodiments of the invention two.
Fig. 6 is the structure chart of embodiments of the invention three.
Description of reference numerals：1- burner hearths, 2- separators, 3- connections flue, 4- inclined-planes, the acceleration ramps of 5- first, 6- second
Acceleration ramp, 7- arc surfaces, 8- accelerating sections, 9- diversion sections.
Specific embodiment
The present invention will be further described with reference to the embodiment in accompanying drawing below：
As shown in Fig. 4 ~ 6, the invention mainly comprises burner hearth 1, separator 2 and connection flue 3, pass through between burner hearth 1 and separator 2
Connection flue 3 links into an integrated entity.
Connection flue 3 includes the accelerating sections 8 and diversion section 9 that set gradually, connects the accelerating sections 8 and diversion section 9 of flue 3
Lateral wall is continuous flat surface, and the madial wall for connecting the diversion section 9 of flue 3 is parallel with the lateral wall of connection flue 3
Flat surface.
The accelerating sections 8 and diversion section 9 for connecting flue 3 can effectively to the cigarette in turbulent condition in connection flue 3
Gas carries out rectification, it is ensured that the flue gas flow direction of connection flue outlet is consistent, and the flue gas flow rate of outlet each point is consistent, smoke-shock
Target area speed is consistent, while the area of smoke-shock target area can be increased, improves separator, and mitigate the mill of target area
Damage.
In embodiment one as shown in Figure 4, connect the madial wall of accelerating sections 8 of flue 3 and accelerate for first flue gas can be realized
Inclined-plane 4.
In embodiment two as shown in Figure 5, the madial wall of accelerating sections 8 for connecting flue 3 includes the first acceleration ramp 5 and second
The bevel angle of acceleration ramp 6, the first acceleration ramp 5 and the second acceleration ramp 6 from the one end of burner hearth 1 to the one end of separator 2 gradually
Diminish, flue gas is realized once accelerating by the first acceleration ramp 5, realize accelerating for second by the second acceleration ramp 6.
In embodiment three as shown in Figure 6, the madial wall of accelerating sections 8 for connecting flue 3 is arc surface 7.
Simple structure of the present invention, compact, reasonable, the position determination of partition wall and separator during design boiler, by burner hearth cigarette
Gas outlet flow into accelerating structure, in flue into the structure of flue is designed into parallel construction in a certain distance before separator
Rectification is carried out to the flue gas flow rate in flue, it causes to connect the flue gas flow rate one that flue enters each point on the section of separator
Cause, mitigate the abrasion to flue gas target area；Simultaneously compared with original structure, the scope of target area also has significant increase, separator
Efficiency can be improved.
Claims (4)
1. a kind of circulating fluidized bed boiler separator gas approach structure, including burner hearth（1）, separator（2）With connection flue
（3）, burner hearth（1）And separator（2）Between by connecting flue（3）Link into an integrated entity, it is characterized in that：Connection flue（3）Including
The accelerating sections for setting gradually（8）And diversion section（9）, connect flue（3）Accelerating sections（8）And diversion section（9）Lateral wall for connect
Continuous flat surface, connects flue（3）Diversion section（9）Madial wall be and be connected flue（3）Parallel straight of lateral wall
Surface.
2. a kind of circulating fluidized bed boiler separator gas approach structure as claimed in claim 1, it is characterized in that：The connection
Flue（3）Accelerating sections（8）Madial wall is inclined-plane（4）.
3. a kind of circulating fluidized bed boiler separator gas approach structure as claimed in claim 1, it is characterized in that：The connection
Flue（3）Accelerating sections（8）Madial wall includes the first acceleration ramp（5）With the second acceleration ramp（6）, the first acceleration ramp（5）
With the second acceleration ramp（6）Bevel angle from burner hearth（1）One end is to separator（2）One end tapers into.
4. a kind of circulating fluidized bed boiler separator gas approach structure as claimed in claim 1, it is characterized in that：The connection
Flue（3）Accelerating sections（8）Madial wall is arc surface（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278603.1A CN106885236A (en) | 2017-04-25 | 2017-04-25 | A kind of circulating fluidized bed boiler separator gas approach structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710278603.1A CN106885236A (en) | 2017-04-25 | 2017-04-25 | A kind of circulating fluidized bed boiler separator gas approach structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106885236A true CN106885236A (en) | 2017-06-23 |
Family
ID=59183584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710278603.1A Pending CN106885236A (en) | 2017-04-25 | 2017-04-25 | A kind of circulating fluidized bed boiler separator gas approach structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106885236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826283A (en) * | 2018-08-15 | 2018-11-16 | 黑龙江福恩德瑞能源科技有限公司 | The side-blown wind system of recirculating fluidized bed returning charge and remodeling method |
| CN114110575A (en) * | 2021-11-15 | 2022-03-01 | 东方电气集团东方锅炉股份有限公司 | Ultra-large circulating fluidized bed boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2936439Y (en) * | 2006-04-26 | 2007-08-22 | 哈尔滨锅炉厂有限责任公司 | Bias high-efficiency cyclone separator |
| CN103912868A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Connecting flue structure for hearth and separators of circulating fluidized bed boiler |
| CN204084345U (en) * | 2014-07-25 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of circulating fluid bed boiler cyclone separator with two eccentric center tube |
| CN106287681A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of separator inlet flue duct structure |
| CN207094610U (en) * | 2017-04-25 | 2018-03-13 | 上海工业锅炉无锡有限公司 | A kind of circulating fluidized bed boiler separator gas approach structure |
-
2017
- 2017-04-25 CN CN201710278603.1A patent/CN106885236A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2936439Y (en) * | 2006-04-26 | 2007-08-22 | 哈尔滨锅炉厂有限责任公司 | Bias high-efficiency cyclone separator |
| CN103912868A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Connecting flue structure for hearth and separators of circulating fluidized bed boiler |
| CN204084345U (en) * | 2014-07-25 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of circulating fluid bed boiler cyclone separator with two eccentric center tube |
| CN106287681A (en) * | 2016-01-18 | 2017-01-04 | 无锡华光锅炉股份有限公司 | A kind of separator inlet flue duct structure |
| CN207094610U (en) * | 2017-04-25 | 2018-03-13 | 上海工业锅炉无锡有限公司 | A kind of circulating fluidized bed boiler separator gas approach structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826283A (en) * | 2018-08-15 | 2018-11-16 | 黑龙江福恩德瑞能源科技有限公司 | The side-blown wind system of recirculating fluidized bed returning charge and remodeling method |
| CN114110575A (en) * | 2021-11-15 | 2022-03-01 | 东方电气集团东方锅炉股份有限公司 | Ultra-large circulating fluidized bed boiler |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
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| RJ01 | Rejection of invention patent application after publication |