CN206608975U - Improve the elbow separator of air-flow center powder concentration - Google Patents
Improve the elbow separator of air-flow center powder concentration Download PDFInfo
- Publication number
- CN206608975U CN206608975U CN201720271681.4U CN201720271681U CN206608975U CN 206608975 U CN206608975 U CN 206608975U CN 201720271681 U CN201720271681 U CN 201720271681U CN 206608975 U CN206608975 U CN 206608975U
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- Prior art keywords
- elbow
- division board
- air
- concentration
- separator
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Abstract
The utility model discloses a kind of elbow separator for improving air-flow center powder concentration, it has elbow body, the feed end of the elbow body is connected with the discharge end of conduit coupling, coaxially concentration ring is fixed with the conduit coupling, along air motion direction, the gas channel of the concentration ring formation is constituted by three sections, is followed successively by the 3rd gas channel that the first gas channel, the second gas channel of cylinder and diameter that diameter tapers into become larger.The utility model have it is simple in construction, be easy to manufacture, the lifting of powder concentrated effect is obvious.
Description
Technical field
The utility model is related to powder conveying technology and field of combustion technology.More specifically, the utility model is related to one
Plant the elbow separator for improving air-flow center powder concentration.
Background technology
Plasma pulverized coal ignition burner, little oil burner design among burner often use sectional combustion, be segmented to
Powder, amplifies form step by step.Particularly when using low volatility coal for improve ignition stability, it is necessary to using deep or light
Separation improves burner centre part coal powder density.
In conventional this kind of device, generally using the elbow structure of powder feeding pipes at burner inlet, using particle curved
Due to effect of inertia at head, to reach the effect of air-coal separating.But such device is for improving coal powder density particularly center coal
The effect of powder concentration is undesirable.
Utility model content
A purpose of the present utility model is to solve at least the above, and provides the advantage that at least will be described later.
The utility model also has a purpose to be to provide a kind of elbow separator for improving air-flow center powder concentration, leads to
The effect for setting concentration ring connector and inside and outside division board to realize the concentration of coal dust center is crossed, its is simple in construction, be easy to manufacture, effect
Fruit is lifted obvious.
Air-flow center powder is improved there is provided one kind according to these purposes of the present utility model and further advantage in order to realize
The elbow separator of concentration, it has elbow body, and the feed end of the elbow body and the discharge end of conduit coupling connect
It is logical, coaxially be fixed with concentration ring in the conduit coupling, along air motion direction, the gas channel that the concentration ring is formed by
Three sections of compositions, are followed successively by the first gas channel, the second gas channel of cylinder and diameter that diameter tapers into and gradually become
The 3rd big gas channel.
Preferably, in addition to it may be contained within the intrinsic outer division board of elbow and interior division board；
The outer division board is non-close circular arc or polygon plate body structure, and it presses close to the positive camber extension of elbow body；
The interior division board is non-close circular arc or polygon plate body structure, and it presses close to the negative camber extension of elbow body；
Wherein, the bending direction of the outer division board and interior division board is identical with the bending direction of elbow body, outer isolation
The bent angle angle of plate is more than the bent angle angle of interior division board.
Preferably, the outer division board and elbow body central line apart from L1It is set to：0 ＜ L1＜ 0.4D, D are curved
The diameter of head body.
Preferably, the interior division board and elbow body central line apart from L2It is set to：0 ＜ L2＜ 0.4D, D are curved
The diameter of head body.
Preferably, the lower end of outer division board with concentration ring apart from L3, interior division board lower end with concentration ring apart from L4
It is set to：0≤L3≤L4。
Preferably, the bent angle angle beta of the outer division board and the bent angle angle, θ of interior division board are set to：0 ° of ＜ θ ＜
β≤90°。
Preferably, the bent angle angle of the elbow body is 30 °≤α≤90 °；θ ＜ α, α=β.
Preferably, in addition to Antiwear casing, it enters in elbow body through the outer division board, and close to elbow sheet
The discharge end of body is set.
The utility model at least includes following beneficial effect：.
Further advantage of the present utility model, target and feature embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of elbow separator of the present utility model and plasma pulverized coal ignition burner；
Fig. 2 is the sectional view of the utility model elbow separator；
Fig. 3 is air-coal separating air-flow trend of the utility model breeze airflow after concentration ring.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
In description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship, is for only for ease of description the utility model and simplifies description, is not instruction or the signified device of hint or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
As shown in Figures 1 to 3, the utility model provides a kind of elbow separator for improving air-flow center powder concentration, its
With elbow body 10, elbow body 10 can be connected with flange or the mode of welding with burner, the elbow body 10
Feed end is connected with the discharge end of conduit coupling 1, coaxial in the conduit coupling 1 to be fixed with concentration ring 2, along air motion
Direction, the gas channel of the formation of concentration ring 2 is constituted by three sections, is followed successively by the first gas channel, circle that diameter is tapered into
The 3rd gas channel that the second gas channel and diameter of cylindricality become larger, i.e., combined by reducing pipe, straight tube and increaser
Form, pulverized coal particle is enriched with to air-flow center using the principle of inertia of coal dust, so that the purpose that coal dust is concentrated toward center is reached,
Improve the air-coal separating effect between coal dust and gas.Concentration ring 2 and conduit coupling 1 are made by high-abrasive material, and pipeline
It can connect or weld by flange 3 between connector 1 and elbow body 10, but be not limited to such a fixed form.
In another technical scheme, in addition to it may be contained within the outer division board 4 and interior division board 6 in elbow body 10；
The outer division board 4 is non-close circular arc or polygon plate body structure, and its positive camber for pressing close to elbow body 10 prolongs
Stretch；
The interior division board 6 is non-close circular arc or polygon plate body structure, and its negative camber for pressing close to elbow body 10 prolongs
Stretch；
Wherein, outer division board 4 and interior division board 6 can be made up of a monoblock plate body, or are spliced by polylith plate body, institute
Outer division board 4 and interior division board 6 is stated preferably to be made of high-abrasive material.
Wherein, the bending direction of the outer division board 4 and interior division board 6 is identical with the bending direction of elbow body 10, outside
The bent angle angle of division board 4 is more than the bent angle angle of interior division board 6.
In the above-mentioned technical solutions, by setting outer division board 4 and interior division board 6 and the concentration collective effect of ring 2, coal dust is made
Air-flow is continuously with the different inertial separation effects of gas-solid, and the air-coal separating effect of lifting air-flow is significantly improved in central gas stream
The concentration of coal dust, and it is simple in construction, it is easy to implement.
In another technical scheme, the outer division board 4 is with the center line of elbow body 10 apart from L1It is set to：0 ＜ L1
＜ 0.4D, D are the diameter of elbow body 10.
In another technical scheme, the interior division board 6 is with the center line of elbow body 10 apart from L2It is set to：0 ＜ L2
＜ 0.4D, D are the diameter of elbow body 10.
In another technical scheme, the lower end of outer division board 4 is with concentration ring 2 apart from L3, interior division board 6 lower end with
Concentrate ring 2 apart from L4It is set to：0≤L3≤L4。
In another technical scheme, the bent angle angle beta of the outer division board 4 and the bent angle angle, θ of interior division board 6 are set
It is set to：0 ° of ＜ θ ＜ β≤90 °.
In another technical scheme, the bent angle angle of the elbow body 10 is 30 °≤α≤90 °；θ ＜ α, α=β.
In the above-mentioned technical solutions, coal dust can further be optimized by the restriction to the inside and outside angle of division board 4 and position
The effect concentrated toward center.
In another technical scheme, in addition to Antiwear casing 5, it enters elbow body 10 through the outer division board 4
It is interior, and set close to the discharge end of elbow body 10, during using Antiwear casing 5, plasma generator and tiny-oil ignition rifle are to adopt
The present apparatus is inserted with the mode of axial direction, in order to protect plasma generator and tiny-oil ignition rifle, therefore is provided with outside it
Antiwear casing 5.
Operation instruction：Plasma burner is widely used in station boiler, for replacing big oil gun as boiler startup point
Fire, boiler low load stable combustion is used, and saves fuel oil.The elbow separator of the application is installed on start-up burner and pulverized coal channel
Between, start-up burner includes：Plasma pulverized coal ignition burner one-level cylinder 7, two grades of cylinders 8 of plasma burner and plasma combustion
Burner outer barrel 9, when plasma generator is axially set in elbow body 10, it is installed in Antiwear casing 5, comes from coal dust
Breeze airflow in pipeline forms center thick coal culm air-flow through conduit coupling 1, elbow body 10, and the coal dust greatly improved is dense
Degree air-flow can make the smooth firing coal-dust of high-temperature plasma, it is ensured that whole start-up burner stable operation.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed to use, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (8)
1. a kind of elbow separator for improving air-flow center powder concentration, it has elbow body, it is characterised in that described curved
The head feed end of body is connected with the discharge end of conduit coupling, coaxially concentration ring is fixed with the conduit coupling, along gas
The direction of motion is flowed, the gas channel of concentration ring formation is constituted by three sections, be followed successively by the first air-flow that diameter tapers into and lead to
The 3rd gas channel that road, the second gas channel of cylinder and diameter become larger.
2. the elbow separator of air-flow center powder concentration is improved as claimed in claim 1, it is characterised in that also including equal
It is arranged at the intrinsic outer division board of elbow and interior division board；
The outer division board is non-close circular arc or polygon plate body structure, and it presses close to the positive camber extension of elbow body；
The interior division board is non-close circular arc or polygon plate body structure, and it presses close to the negative camber extension of elbow body；
Wherein, the bending direction of the outer division board and interior division board is identical with the bending direction of elbow body, outer division board
Bent angle angle is more than the bent angle angle of interior division board.
3. improve the elbow separator of air-flow center powder concentration as claimed in claim 2, it is characterised in that it is described it is outer every
From plate and elbow body central line distance L1It is set to：0 ＜ L1＜ 0.4D, D are the diameter of elbow body.
4. the elbow separator of air-flow center powder concentration is improved as claimed in claim 2 or claim 3, it is characterised in that described
Interior division board is with elbow body central line apart from L2It is set to：0 ＜ L2＜ 0.4D, D are the diameter of elbow body.
5. the elbow separator of air-flow center powder concentration is improved as claimed in claim 4, it is characterised in that outer division board
Lower end with concentration ring apart from L3, interior division board lower end with concentration ring apart from L4It is set to：0≤L3≤L4。
6. improve the elbow separator of air-flow center powder concentration as claimed in claim 2, it is characterised in that it is described it is outer every
It is set to from the bent angle angle beta of plate and the bent angle angle, θ of interior division board：0 ° of ＜ θ ＜ β≤90 °.
7. the elbow separator of air-flow center powder concentration is improved as claimed in claim 6, it is characterised in that the elbow
The bent angle angle of body is 30 °≤α≤90 °；θ ＜ α, α=β.
8. the elbow separator of air-flow center powder concentration is improved as claimed in claim 2, it is characterised in that also including anti-
Grinding set pipe, it enters in elbow body through the outer division board, and is set close to the discharge end of elbow body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271681.4U CN206608975U (en) | 2017-03-20 | 2017-03-20 | Improve the elbow separator of air-flow center powder concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271681.4U CN206608975U (en) | 2017-03-20 | 2017-03-20 | Improve the elbow separator of air-flow center powder concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608975U true CN206608975U (en) | 2017-11-03 |
Family
ID=60166369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271681.4U Active CN206608975U (en) | 2017-03-20 | 2017-03-20 | Improve the elbow separator of air-flow center powder concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608975U (en) |
-
2017
- 2017-03-20 CN CN201720271681.4U patent/CN206608975U/en active Active
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