CN208418729U - A kind of burner of adjustable load - Google Patents
A kind of burner of adjustable load Download PDFInfo
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- CN208418729U CN208418729U CN201820923931.2U CN201820923931U CN208418729U CN 208418729 U CN208418729 U CN 208418729U CN 201820923931 U CN201820923931 U CN 201820923931U CN 208418729 U CN208418729 U CN 208418729U
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- air channel
- tube wall
- outer tube
- wall
- duct
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Abstract
A kind of burner of adjustable load, center wind duct including from-inner-to-outer setting, First air channel and secondary air channel, First air channel is connected to coal dust channel, fuel is conveyed for combustion apparatus, center wind duct and secondary air channel are that combustion apparatus conveys air, the tube wall of center wind duct is made of the connection that is nested of the Outer Tube wall one that is axially movable and fixed inner duct wall one, the outer tube wall of secondary air channel is made of the connection that is nested of the Outer Tube wall two that is axially movable and fixed inner duct wall two, the inner tubal wall of secondary air channel and the outer tube wall in First air channel are fixed duct wall, the Outer Tube wall two, the head of duct wall and Outer Tube wall one is in shrink mouth shape, the utility model uses axially movable set tube wall principle, adjust the cross-sectional area of combustor flow circulation passage, it can be compared under underload Stablize burning, can significantly adjust operating load, effectively adapts to the needs of thermal power plant's flexibility peak regulation under renewable energy online background.
Description
Technical field
The utility model belongs to thermal power plant's flexibility peak regulation technique field, in particular to a kind of burning of adjustable load
Device.
Background technique
The scale development of China's renewable energy installation in recent years is rapid, and more and more unstable new energy access power grid
Afterwards, huge challenge is proposed to the safe and stable operation of power grid.Also there is serious " abandonment abandoning light " phenomenon in some areas.
National policy adjustment, mandatory requirement renewable energy online, this imply that role of the thermoelectricity in energy resource supply will
From basic, routinely the energy is to peak regulation, stand-by power source transformation, i.e., thermal power plant will have the ability of flexibility peak regulation.Boiler is low
Most direct means of the load combustion technology as thermal power plant's flexibility peak regulation, wherein burner underrun technology is most to close
The technology of key.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of this utility model is to provide a kind of combustions of adjustable load
Burner, structure is simple, can significantly adjust burner load, is especially adapted for use in opposed firing boiler-burner and combustion gas
Burner.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of burner of adjustable load, center wind duct 1, First air channel 2 and two including from-inner-to-outer setting
Secondary wind channel 4, First air channel 2 are connected to coal dust channel 3, convey fuel for combustion apparatus, center wind duct 1 and Secondary Air are logical
Road 4 is that combustion apparatus conveys air, which is characterized in that the tube wall of center wind duct 1 is by the Outer Tube wall 1 that is axially movable
It is nested connection composition with fixed inner duct wall 1, the outer tube wall of secondary air channel 4 is by the Outer Tube wall 28 that is axially movable
It is nested with fixed inner duct wall 26 and connects composition, the inner tubal wall of secondary air channel 4 and the outer tube wall in First air channel 2 are
The head of fixed duct wall 9, the Outer Tube wall 28, duct wall 9 and Outer Tube wall 1 is in shrink mouth shape.
The Outer Tube wall 28 does axial displacement by controlling executing agency 27, and the Outer Tube wall 1 passes through control
Axial displacement is done by executing agency 5, so that 4 cross-sectional area of First air channel 2 and secondary air channel changes, and then adjusts
First air and secondary wind wind speed.
Spinning disk 12 is provided in the First air channel 2 and secondary air channel 4.
The working method of the burner of load is adjusted in the utility model, it is characterised in that:
When burner needs to run under high loads, control executing agency 7 and control executing agency 5 control outer tube respectively
Road wall 28 increases First air channel 2 and two to cephalad direction axial movement and the rearwardly direction axial displacement of Outer Tube wall 1
The cross-sectional area in secondary wind channel 4, to increase the flow of First air and Secondary Air；
When burner needs to run at low load, control executing agency 7 and control executing agency 5 control outer tube respectively
Rearwardly direction axial movement and Outer Tube wall 1 increase First air channel 2 and two to cephalad direction axial displacement to road wall 28
The cross-sectional area in secondary wind channel 4, to reduce the flow of First air and Secondary Air.
Compared with prior art, the utility model burner apparatus is adjusted using axially movable set tube wall principle
The cross-sectional area of combustor flow circulation passage is saved, it is negative can significantly to adjust operation compared with burning is stablized under underload
Lotus effectively adapts to the needs of thermal power plant's flexibility peak regulation under renewable energy online background.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the burner that load is adjusted in the utility model.
Specific embodiment
The embodiments of the present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, there are three channel, center wind ducts 1, First air altogether for the burner of the adjustable load of the utility model
Channel 2, secondary air channel 4.First air channel 2 is in the centre of center wind duct 1 and secondary air channel 4.2 He of First air channel
Coal dust channel 3 is connected to, and conveys fuel for combustion apparatus, center wind duct 1 and secondary air channel 4 are that combustion apparatus conveys air.
There is spinning disk 12 in First air channel 2 and secondary air channel 4, can fuel and air uniformly be mixed, flameholding.
The tube wall of duct wall center wind duct 1 is nested connection group by Outer Tube wall 1 and fixed inner duct wall 1
Be made of at the outer tube wall of, secondary air channel 4 connection that is nested of Outer Tube wall 28 and inner duct wall 26, secondary air channel 4 it is interior
Tube wall and the outer tube wall in First air channel 2 are fixed duct wall 9.Outer Tube wall 28 does axis by controlling executing agency 27
To displacement, the Outer Tube wall 1 does axial displacement by controlling executing agency 5, and duct wall 9 is fixed.
Since the head of Outer Tube wall 28, duct wall 9 and Outer Tube wall 1 is in shrink mouth shape, then Outer Tube wall 28
Axial displacement is done relative to duct wall 9 with Outer Tube wall 1, the transversal of the 4 of First air channel 2 and secondary air channel can be made
Area changes.
The course of work of burner is, when burner needs to run under high loads, controls executing agency 7 and control is held
Row mechanism 5 can be controlled separately the rearwardly axial movement of Outer Tube wall 28 to head axial movement and Outer Tube wall 1, increase
The cross-sectional area in big First air channel 2 and secondary air channel 4；To increase the flow of First air and Secondary Air；Work as burner
When needing to run at low load, control executing agency 7 and control executing agency 5 can be controlled separately Outer Tube wall 28 to tail
Portion's axial movement is moved axially with Outer Tube wall 1 to head, reduces the cross section in First air channel 2 and secondary air channel 4
Area；To reduce the flow of First air and Secondary Air, to ensure that stablizing for burner is burnt.
The burner can comply with combustion apparatus load variations and directly make a change, and structure is simple, easy to implement, meet
The requirement that thermal power plant's flexibility is adjusted.
Claims (3)
1. a kind of burner of adjustable load, center wind duct (1), First air channel (2) including from-inner-to-outer setting and
Secondary air channel (4), First air channel (2) are connected to coal dust channel (3), convey fuel, center wind duct (1) for combustion apparatus
It is that combustion apparatus conveys air with secondary air channel (4), which is characterized in that the tube wall of center wind duct (1) is by being axially movable
Outer Tube wall one (10) and fixed inner duct wall one (11) be nested connection composition, the outer tube wall of secondary air channel (4) is by can
The Outer Tube wall two (8) of axial movement and fixed inner duct wall two (6), which are nested, connects composition, the inner tube of secondary air channel (4)
Wall and the outer tube wall of First air channel (2) are fixed duct wall (9), the Outer Tube wall two (8), duct wall (9) and outer
The head of duct wall one (10) is in shrink mouth shape.
2. the burner of load is adjusted according to claim 1, which is characterized in that the Outer Tube wall two (8) passes through control
Executing agency two (7) processed does axial displacement, and the Outer Tube wall one (10) does axial displacement by controlling executing agency (5), from
And the cross-sectional area of First air channel (2) and secondary air channel (4) is changed, and then adjust First air and secondary wind wind speed.
3. the burner of load is adjusted according to claim 1, which is characterized in that the First air channel (2) and secondary
Spinning disk (12) are provided in wind channel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923931.2U CN208418729U (en) | 2018-06-14 | 2018-06-14 | A kind of burner of adjustable load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923931.2U CN208418729U (en) | 2018-06-14 | 2018-06-14 | A kind of burner of adjustable load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418729U true CN208418729U (en) | 2019-01-22 |
Family
ID=65107590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820923931.2U Active CN208418729U (en) | 2018-06-14 | 2018-06-14 | A kind of burner of adjustable load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613184A (en) * | 2018-06-14 | 2018-10-02 | 华能国际电力股份有限公司 | A kind of burner and working method of adjustable load |
| CN110260653A (en) * | 2019-07-19 | 2019-09-20 | 长沙有色冶金设计研究院有限公司 | A kind of liftable vertical combustor system and its application method |
-
2018
- 2018-06-14 CN CN201820923931.2U patent/CN208418729U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613184A (en) * | 2018-06-14 | 2018-10-02 | 华能国际电力股份有限公司 | A kind of burner and working method of adjustable load |
| CN108613184B (en) * | 2018-06-14 | 2023-10-13 | 华能国际电力股份有限公司 | Combustor capable of adjusting load and working method |
| CN110260653A (en) * | 2019-07-19 | 2019-09-20 | 长沙有色冶金设计研究院有限公司 | A kind of liftable vertical combustor system and its application method |
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