CN204847398U - Unilateral baffle adjustable air conveying powder flow rate adjusting device - Google Patents
Unilateral baffle adjustable air conveying powder flow rate adjusting device Download PDFInfo
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- CN204847398U CN204847398U CN201520612118.XU CN201520612118U CN204847398U CN 204847398 U CN204847398 U CN 204847398U CN 201520612118 U CN201520612118 U CN 201520612118U CN 204847398 U CN204847398 U CN 204847398U
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- flow rate
- baffle plate
- adjustable
- powder flow
- geldart
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Abstract
The utility model discloses an unilateral baffle adjustable air conveying powder flow rate adjusting device to solve the uneven problem of the mobile in -process ubiquitous velocity of flow of air conveying powder. This flow rate adjusting device includes flange (1), pipe wall (2), baffle storehouse (3), actuating mechanism (4), axis of rotation (5) and adjustable baffle (6), its characterized in that: be equipped with facing the wind welt (8) in baffle storehouse (3), adjustable baffle (6) can 0 -90 degree rotation in the pipeline under the drive of actuating mechanism (4), axis of rotation (5) are connected with baffle storehouse (3) through bearing (7). Adjustable baffle (6) by actuating mechanism (4) control turned angle, and then change the flow area of pipeline and the resistance of pipeline to reach the mesh to air conveying powder multi -channel velocity of flow equalizing control among the industrial application. The utility model has the advantages of adjust nimble, control range is big, the outward appearance is small and exquisite, stand wear and tear.
Description
Technical field
The utility model relates to the adjustable Geldart-D particle powder flow rate control apparatus of a kind of one-sided baffle plate.
Background technology
Geldart-D particle is a kind of effective ways utilizing air-flow conveying granular solid in the duct, and be widely used in the conveying of the powder of various industrial sector, such as, in thermal powerplant primary air piping, solid fuel is as the Cemented filling of coal dust etc.For coal burning boiler, First air manage-style powder divides balancing to have material impact for the stability of boiler operatiopn, economy, safety and the feature of environmental protection.Primary wind and powder distributes inequality can make furnace flame center that deflection occurs, and causes the too high and combustion pulsation of temperatures at localized regions in burner hearth.This not only can cause combustion instability, inboard wall of burner hearth slagging scorification, even causes the serious harm of superheater over temperature booster.The uneven combustion efficiency both having reduced boiler that wind powder distributes, turn increasing growing amount, is safe operation of power plant and energy-saving and emission-reduction urgent problem.
At present, Geldart-D particle powder flow rate regulates and lacks flexible, actv. device.Most of power plant adopts the method for cold conditions leveling to solve this problem, that is: in each First air pipeline, adjustable contraction is installed, by regulating the opening diameter size of each adjustable contraction to regulate each primary air piping resistance of ducting in the cold conditions situation of pure wind flow, thus each primary air piping powder flow rate is regulated.
But traditional adjustable contraction is not regulate the optimal device of Geldart-D particle powder flow rate.Mainly there is following problem in traditional adjustable contraction:
1., after being with powder to run, adjustable contraction opening diameter cannot adjust in real time.
The size of adjustable contraction is determined according to the in-place test under pure stream condition, by in-place test determination cutoff port opening diameter size, needs wind speed in repeated measurement pipe.After band powder runs, adjustable contraction cannot adjust further.Research shows, even if cold conditions leveling reaches good effect, in hot situation, still there will be very large deviation.Conventional tunable shrinkage cavity cannot adjust flexibly and effectively when being with powder to run, thus can not play regulating effect well.
2. Conventional tunable shrinkage cavity structure space is excessive, dumb.
Conventional tunable shrinkage cavity adopts bilateral straight cutting baffle plate, and structure space is large, but actual industrial scene does not many times have enough spaces to install Conventional tunable shrinkage cavity device.
3. Conventional tunable shrinkage cavity is easily piled powder-deposit and is caused jam.
Conventional tunable shrinkage cavity adopts bilateral straight cutting baffle plate, and baffle plate vertical pipe, powder is easily deposited in baffle plate gap, causes jam.
Summary of the invention
For solving the problems referred to above that prior art exists, the purpose of this utility model is to provide the adjustable Geldart-D particle powder flow rate control apparatus of a kind of one-sided baffle plate, still effectively can regulate Geldart-D particle powder flow rate flexibly when being with powder to run, thus realize the object of Geldart-D particle powder multi-pipeline flow velocity well-balanced adjustment in technical application.
For realizing the purpose of this utility model, the utility model by the following technical solutions:
The Geldart-D particle powder flow rate control apparatus that a kind of one-sided baffle plate is adjustable comprises flange, tube wall, baffle plate storehouse, actuating unit, turning cylinder and fender plate; It is characterized in that: in described baffle plate storehouse, be provided with liner plate windward, thus prevent powder flow from excessively washing away baffle plate storehouse, described fender plate can rotate by 0-90 degree in the duct under the drive of actuating unit, fender plate rotational angle is different, it stops that area is different, the flow area of pipeline is different with the resistance of ducting, thus can regulate the resistance of ducting by regulating fender plate rotational angle, and then regulates powder flow rate.When fender plate rotational angle is 0 degree, stop that area is maximum, when fender plate rotational angle is 90 degree, stop that area is minimum.The stop area of fender plate to powder accounts for the long-pending 0-80% of pipeline section.
Described turning cylinder is connected with baffle plate storehouse by bearing, thus prevents powder in pipeline by slot leakage to outside pipeline.
Its vertical section of described fender plate is orthogonal, arc or fold-line-shaped, thus ensures that the resistance of ducting is with rotational angle linear change.
Described tube wall, fender plate, turning cylinder, windward liner plate are made by wear-resistant steel material, and described tube wall has ceramic-lined, the wear resisting property of intensifier.
Compared with prior art, the utility model has the following advantages:
(1) when being with powder to run, fender plate can rotate by 0-90 degree in pipeline, and its resistance can consecutive variations and the linearity is better.Thus can regulate continuously the resistance of ducting neatly when being with powder to run, thus effectively can regulate each pipeline airvey system powder flow rate.
(2) compared with Conventional tunable shrinkage cavity, the fender plate that the utility model adopts rotates in baffle plate storehouse, has the feature of compact structure, flexible operation, is well positioned to meet the requirement of industry spot.
(3) compared with Conventional tunable shrinkage cavity, the utility model adopts the fender plate that can rotate in baffle plate storehouse well to solve the problem of powder jam.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model birds-eye view;
A-A direction cutaway view when Fig. 3 (a) is the utility model fender plate rotation 0 degree;
A-A direction cutaway view when Fig. 3 (b) is the utility model fender plate rotation 45 degree;
A-A direction cutaway view when Fig. 3 (c) is the utility model fender plate rotation 90 degree;
Fig. 4 is the utility model difformity fender plate section drawing.
Wherein: 1-flange, 2-tube wall, 3-baffle plate storehouse, 4-actuating unit, 5-turning cylinder, 6-fender plate, 7-bearing, 8-liner plate windward.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model.As shown in Figure 1, the Geldart-D particle powder flow rate control apparatus that this one-sided baffle plate is adjustable comprises flange (1), tube wall (2), baffle plate storehouse (3), actuating unit (4), turning cylinder (5) and fender plate (6); It is characterized in that: be provided with liner plate (8) windward in described baffle plate storehouse (3), thus prevent powder flow from excessively washing away baffle plate storehouse, described fender plate (6) can rotate by 0-90 degree in the duct under the drive of actuating unit (4).Described turning cylinder (5) is connected with baffle plate storehouse (3) by bearing (7), thus prevents powder in pipeline by slot leakage to outside pipeline.
Fig. 2 is the utility model birds-eye view, and Fig. 3 is the utility model adjustable baffle plate A-A direction cutaway view when being in 0 degree, 45 degree, 90 degree respectively.Fender plate rotational angle is different, and it stops that area is different, thus the flow area of pipeline is different with the resistance of ducting, thus can regulate the resistance of ducting by regulating fender plate rotational angle, and then regulates powder flow rate.When fender plate rotational angle is 0 degree, stop that area is maximum, when fender plate rotational angle is 90 degree, stop that area is minimum.The stop area of fender plate to powder accounts for the long-pending 0-80% of pipeline section.
Fig. 4 is the section drawing of the utility model difformity adjustable baffle plate.Preferably, adjustable baffle plate vertical section is designed to rectangle, arc or fold-line-shaped, thus ensures that the resistance of ducting is with rotational angle linear change, improves regulating effect.
Preferably, described tube wall, fender plate, turning cylinder, windward liner plate are made by wear-resistant steel material, and described tube wall has ceramic-lined, to strengthen this control apparatus wear resisting property, thus extend its service life.
By reference to the accompanying drawings detailed description has been done to embodiments of the present invention above, but the present invention is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, many variations can also be made to it.Therefore, the scope that protection scope of the present invention is worked as depending on the restriction of proposed claim is as the criterion.
Claims (7)
1. the Geldart-D particle powder flow rate control apparatus that an one-sided baffle plate is adjustable comprises flange (1), tube wall (2), baffle plate storehouse (3), actuating unit (4), turning cylinder (5) and fender plate (6); It is characterized in that: be provided with liner plate (8) windward in described baffle plate storehouse (3), described fender plate (6) can rotate by 0-90 degree in the duct under the drive of actuating unit (4).
2. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, is characterized in that: described turning cylinder (5) is connected with baffle plate storehouse (3) by bearing (7).
3. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, is characterized in that: the stop area of described fender plate (6) accounts for the long-pending 0-80% of pipeline section.
4. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, it is characterized in that: described tube wall (2), baffle plate storehouse (3), turning cylinder (5), fender plate (6) and windward liner plate (8) make by wear-resistant steel material, described tube wall (2) has ceramic-lined.
5. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, is characterized in that: described fender plate (6) its vertical section is orthogonal.
6. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, is characterized in that: its vertical section camber of described fender plate (6).
7. the Geldart-D particle powder flow rate control apparatus that one-sided baffle plate according to claim 1 is adjustable, is characterized in that: described fender plate (6) its vertical section becomes fold-line-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612118.XU CN204847398U (en) | 2015-08-14 | 2015-08-14 | Unilateral baffle adjustable air conveying powder flow rate adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612118.XU CN204847398U (en) | 2015-08-14 | 2015-08-14 | Unilateral baffle adjustable air conveying powder flow rate adjusting device |
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| Publication Number | Publication Date |
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| CN204847398U true CN204847398U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520612118.XU Active CN204847398U (en) | 2015-08-14 | 2015-08-14 | Unilateral baffle adjustable air conveying powder flow rate adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035771A (en) * | 2015-08-14 | 2015-11-11 | 北京华清茵蓝科技有限公司 | Pneumatic powder conveying flow rate adjusting device with adjustable unilateral baffle |
-
2015
- 2015-08-14 CN CN201520612118.XU patent/CN204847398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035771A (en) * | 2015-08-14 | 2015-11-11 | 北京华清茵蓝科技有限公司 | Pneumatic powder conveying flow rate adjusting device with adjustable unilateral baffle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |