CN106122953B - A kind of First air air-distribution device of CFBB - Google Patents
A kind of First air air-distribution device of CFBB Download PDFInfo
- Publication number
- CN106122953B CN106122953B CN201610745364.1A CN201610745364A CN106122953B CN 106122953 B CN106122953 B CN 106122953B CN 201610745364 A CN201610745364 A CN 201610745364A CN 106122953 B CN106122953 B CN 106122953B
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- CN
- China
- Prior art keywords
- air
- discharge pipe
- blast
- blast cap
- pipe
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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
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- 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)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of First air air-distribution device of CFBB, including burner hearth and flue, coal feeder is provided with burner hearth, air compartment is provided with burner hearth lower end, air distribution plate is provided with air compartment lower end, the first air inlet and the second air inlet are provided with air distribution plate, the first discharge pipe and the second discharge pipe are provided with air distribution plate, the first blast cap is provided with the first discharge pipe, the second blast cap is provided with the second discharge pipe, flue connects First air air-introduced machine by primary air piping, First air fairlead is provided with flue, First air fairlead passes through the first blast pipe, second blast pipe is connected with the first air inlet and the second air inlet respectively, flow control valve is set on the first blast pipe, slag notch is provided with air compartment lower end, temperature detection mouth is provided with slag notch.The present invention is simple in construction, reasonable in design, can strictly control the air quantity of First air, avoid First air from excessively causing NOXDischarge capacity increase with the very few coal of First air can not after-flame, cause flying dust excessive.
Description
Technical field
The present invention relates to boiler plant field, the First air air-distribution device of specifically a kind of CFBB.
Background technology
CFBB will strictly control the intake of First air during use, in First air and Secondary Air
It can cause NO in the case that the air intake of amount is out of proportionXDischarge capacity increases, and can cause in the case of First air intake deficiency
Coal combustion is not exclusively, bed temperature increases, caused flying dust amount increases, and increases the load of boiler, increases production cost, to boiler in itself
Major injury can be produced.
The content of the invention
In order to solve the above problems the invention provides a kind of air quantity that can strictly control First air, First air mistake is avoided
Cause NO moreXDischarge capacity increase with the very few coal of First air can not after-flame, cause the excessive CFBB of flying dust once
Wind air-distribution device.
The present invention is achieved through the following technical solutions in order to achieve the above object：
The present invention is a kind of First air air-distribution device of CFBB, including burner hearth and flue, is set on burner hearth
Coal feeder is equipped with, burner hearth lower end is provided with air compartment, air compartment lower end is provided with air distribution plate, first is provided with air distribution plate
Air inlet and the second air inlet, are provided with the first discharge pipe and the second discharge pipe on air distribution plate, and the first discharge pipe and second go out
Airduct is arranged at intervals, and the first blast cap is provided with the first discharge pipe, the second blast cap is provided with the second discharge pipe, flue leads to
Primary air piping connection First air air-introduced machine is crossed, First air fairlead is provided with flue, First air fairlead enters by first
Airduct, the second blast pipe are connected with the first air inlet and the second air inlet respectively, flow control valve are set on the first blast pipe, in wind
Room lower end is provided with slag notch, and temperature detection mouth is provided with slag notch.
Further improvement of the present invention is：First blast cap is highly higher than the second blast cap, and the diameter of the second blast cap is than first
Blast cap is big, and the air outlet quantity set on the first blast cap is than few on the second blast cap.
Further improvement of the present invention is：First air inlet is arranged on the first discharge pipe, and the second air inlet is arranged on
On second discharge pipe.
The beneficial effects of the invention are as follows：First air is divided by the first blast pipe and the second blast pipe that are set on air distribution plate
Enter for two air inlets in burner hearth, the flow control valve of wind flow of control is set on the first blast pipe, in the second blast pipe
In the case of intake deficiency, the air quantity of First air is supplemented by changing flow control valve, can strictly control the First air of supplement
Air quantity, prevent First air air quantity it is excessive caused by NOXDischarge capacity increases, while the first blast cap ratio set on the first blast pipe
The second blast cap for being set on the second blast pipe is high, diameter is smaller, air outlet is fewer, can be right in the first blast cap air draft
The coal on upper strata is blowed, and avoids the coal on middle part and upper strata because oxygen deficiency leads to not after-flame.
The present invention is simple in construction, reasonable in design, can strictly control the air quantity of First air, avoid First air from excessively leading
Cause NOXDischarge capacity increase with the very few coal of First air can not after-flame, cause flying dust excessive.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein：1- burner hearths, 2- flues, 3- coal feeders, 4- air compartments, 5- air distribution plates, the discharge pipes of 6- first, the air-out of 7- second
Pipe, 8- First air air-introduced machines, 9- First air fairleads, 10- slag notches.
Embodiment
In order to strengthen the understanding of the present invention, present invention work is further retouched in detail below in conjunction with drawings and examples
State, the embodiment is only used for explaining the present invention, and protection scope of the present invention is not formed and limited.
As shown in figure 1, the present invention is a kind of First air air-distribution device of CFBB, including burner hearth 1 and flue
2, coal feeder 3 is provided with burner hearth 1, the lower end of burner hearth 1 is provided with air compartment 4, the lower end of air compartment 4 is provided with air distribution plate 5,
The first air inlet and the second air inlet are provided with air distribution plate 5, the first discharge pipe 6 and the second air-out are provided with air distribution plate 5
Pipe 7, the first discharge pipe 6 and the second discharge pipe 7 are arranged at intervals, and the first blast cap are provided with the first discharge pipe 6, in the second air-out
The second blast cap is provided with pipe 7, flue 2 connects First air air-introduced machine 8 by primary air piping, First air is provided with flue 2
Fairlead 9, First air fairlead 9 by the first blast pipe, the second blast pipe respectively with the first air inlet and the second air inlet phase
Even, flow control valve is set on the first blast pipe, the lower end of air compartment 4 is provided with slag notch 10, temperature is provided with slag notch 10
Detection mouth, the first air inlet are arranged on the first discharge pipe 6, and the second air inlet is arranged on the second discharge pipe 7, and the first blast cap is high
Degree is higher than the second blast cap, and the diameter of the second blast cap is bigger than the first blast cap, and the air outlet quantity set on the first blast cap is than second
Lacking on blast cap.
The present invention is simple in construction, reasonable in design, can strictly control the air quantity of First air, avoid First air from excessively causing
NOXDischarge capacity increase with the very few coal of First air can not after-flame, cause flying dust excessive.
Claims (3)
1. a kind of First air air-distribution device of CFBB, including burner hearth（1）And flue（2）, it is characterised in that：Institute
State burner hearth（1）On be provided with coal feeder（3）, in the burner hearth（1）Lower end is provided with air compartment（4）, in the air compartment（4）Lower end
It is provided with air distribution plate（5）, in the air distribution plate（5）On be provided with the first air inlet and the second air inlet, in the air distribution plate（5）
On be provided with the first discharge pipe（6）With the second discharge pipe（7）, first discharge pipe（6）With the second discharge pipe（7）Interval is set
Put, in first discharge pipe（6）On be provided with the first blast cap, in second discharge pipe（7）On be provided with the second blast cap, institute
State flue（2）First air air-introduced machine is connected by primary air piping（8）, in the flue（2）On be provided with First air fairlead
（9）, the First air fairlead（9）Entered respectively with first air inlet and second by the first blast pipe, the second blast pipe
Air port is connected, and flow control valve is set on first blast pipe, in the air compartment（4）Lower end is provided with slag notch（10）, institute
State slag notch（10）On be provided with temperature detection mouth.
A kind of 2. First air air-distribution device of CFBB according to claim 1, it is characterised in that：Described first
Blast cap height is higher than second blast cap, and the diameter of second blast cap is bigger than first blast cap, on first blast cap
The air outlet quantity of setting is than few on second blast cap.
A kind of 3. First air air-distribution device of CFBB according to claim 1, it is characterised in that：Described first
Air inlet is arranged on first discharge pipe（6）On, second air inlet is arranged on second discharge pipe（7）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745364.1A CN106122953B (en) | 2016-08-29 | 2016-08-29 | A kind of First air air-distribution device of CFBB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745364.1A CN106122953B (en) | 2016-08-29 | 2016-08-29 | A kind of First air air-distribution device of CFBB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122953A CN106122953A (en) | 2016-11-16 |
| CN106122953B true CN106122953B (en) | 2018-03-23 |
Family
ID=57271860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610745364.1A Active CN106122953B (en) | 2016-08-29 | 2016-08-29 | A kind of First air air-distribution device of CFBB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122953B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3460000B2 (en) * | 1993-03-12 | 2003-10-27 | バブコック日立株式会社 | Blast tube for fluidized bed boiler |
| FI114114B (en) * | 2003-04-10 | 2004-08-13 | Kvaerner Power Oy | Air supplying method for fluidized-bed boiler, involves supplying air flow from primary air jets and side air jets into furnace, where air flow supplied from primary air jets is stronger than that supplied from side air jets |
| CN201351914Y (en) * | 2008-12-20 | 2009-11-25 | 交城义望铁合金有限责任公司 | Return material air supply system of circulating fluidized bed boiler |
| CN102278744A (en) * | 2010-06-13 | 2011-12-14 | 中国科学院工程热物理研究所 | Air distribution method of primary air for circulating fluidized bed boiler |
| CN102384470A (en) * | 2010-09-06 | 2012-03-21 | 上海锅炉厂有限公司 | Primary air inlet device of circulating fluidized bed boiler |
| CN206300183U (en) * | 2016-08-29 | 2017-07-04 | 江苏汇能锅炉有限公司 | A kind of First air air-distribution device of CFBB |
-
2016
- 2016-08-29 CN CN201610745364.1A patent/CN106122953B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106122953A (en) | 2016-11-16 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191018 Address after: Erling Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Huineng Heavy Industry Co., Ltd Address before: 212362, Jiangsu Town, Jiangsu, Danyang, Zhenjiang Province Patentee before: Jiangsu Huineng Boiler Co., Ltd. |