CN204896814U - Two side shield adjustable air conveying powder flow rate adjusting device - Google Patents
Two side shield adjustable air conveying powder flow rate adjusting device Download PDFInfo
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- CN204896814U CN204896814U CN201520611998.9U CN201520611998U CN204896814U CN 204896814 U CN204896814 U CN 204896814U CN 201520611998 U CN201520611998 U CN 201520611998U CN 204896814 U CN204896814 U CN 204896814U
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- baffle plate
- adjustable
- flow rate
- powder flow
- geldart
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Abstract
The utility model discloses a two side shield adjustable air conveying powder flow rate adjusting device, including flange (1), pipeline arc (2) but, go up adjusting the bezel (3) but, adjusting the bezel (4), axis of rotation (5), actuating mechanism (6) and seal box shell (7) down, its characterized in that: upper and lower adjusting the bezel but (3, 4) can be at 0 to 90 degree internal rotation, be equipped with between axis of rotation (5) and seal box shell (7) sealing washer device (8), seal box shell (7) facing the wind to incline and are equipped with facing the wind welt (9). But upper and lower two side adjusting the bezel (3, 4) through axis of rotation (5) by actuating mechanism (7) control turned angle, the flow area of control pipeline changes the resistance of ducting to reach the balanced mesh of the multi -channel velocity of flow among the industrial application. The utility model has the advantages of control range is big, and the convection type influence is little, and the outward appearance is small and exquisite, and is 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 bilateral 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, 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 namely reducing 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, primary air piping resistance regulates and lacks flexible, actv. device.At present, 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 the distribution of each First air manage-style powder is made to reach balanced.
But traditional adjustable contraction is not regulate the optimal device of the primary air piping resistance of ducting.Mainly there is following problem in traditional adjustable contraction.
1., after being with powder to run, adjustable contraction opening diameter cannot adjust neatly.
The size of cutoff port 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, cutoff port 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 good regulating effect.
2. the impact of Conventional tunable shrinkage cavity on coal dust flow pattern is bad.
Aperture diminishes in the place that pipeline is suitable by traditional adjustable contraction, and when fluid flows through reducing, a fluid stream can attenuate or shrink, thus plays the effect regulating the resistance of ducting and flow velocity.But this regulative mode causes very large impact by coal dust flow pattern, what cause coal dust to flow is uneven.
3. Conventional tunable shrinkage cavity structure space is excessive, dumb.
Conventional tunable shrinkage cavity adopts bilateral straight cutting baffle plate, and structure space is large, and actual industrial scene does not many times have enough spaces to install Conventional tunable shrinkage cavity device.
4. Conventional tunable shrinkage cavity is easily piled up coal dust 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 utility model object is to provide the adjustable Geldart-D particle powder flow rate control apparatus of a kind of bilateral baffle plate, still can effectively regulate primary air piping to adjust flow velocity along journey resistance to flow flexibly when being with powder to run, thus realize the object that primary wind and powder divides balancing and then reach Optimizing Combustion, energy-saving and cost-reducing and decreasing pollution thing discharge.
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 bilateral baffle plate is adjustable comprises flange, pipeline arc, upper adjustable baffle plate, lower adjustable baffle plate, turning cylinder, actuating unit and seal casing shell; It is characterized in that: described upper controllable register and lower controllable register all can independently in 0 to 90 degree rotate.
Gasket set is provided with between described turning cylinder and seal casing shell; Described seal casing shell windward side is provided with liner plate windward.
Described bilateral adjustable baffle plate by actuating mechanism controls rotational angle, controls the flow area of pipeline by turning cylinder, changes the resistance of ducting, to reach the object of multi-pipeline flow velocity equilibrium in technical application.Think that rotational angle is 0 degree when bilateral adjustable baffle plate convection cell is unobstructed, think that rotational angle is 90 degree when the stop of bilateral adjustable baffle plate convection cell is maximum.The stop area of upper and lower adjustable baffle plate convection cell accounts for the long-pending 0-80% of pipeline section.
Described pipeline arc, upper and lower adjustable baffle plate, turning cylinder, windward liner plate are made by wear-resistant steel, and wherein pipeline arc has ceramic-lined, the wear resisting property of intensifier; Described upper and lower adjustable baffle plate vertical section is orthogonal, arc or fold-line-shaped.
Compared with prior art, the utility model has the following advantages.
(1) when being with powder to run, bilateral adjustable baffle plate can be rotated 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 it is more even that each First air manage-style powder can be made to distribute, and burning is optimized.
(2) upper and lower side adjustable baffle plate all can freely control, and can effectively regulate primary wind and powder to distribute, and after regulating, fluid is closer to pipeline center, reduces the erosive wear to duct wall.When upside flow velocity concentration is larger, only need upper rotation angle degree to tune up; Instantly, when effluent speed concentration is larger, only need lower rotation angle degree to tune up.
(3) compared with Conventional tunable shrinkage cavity, the utility model adopts the fender plate that can rotate in baffle plate storehouse well to solve a difficult problem for powder jam.
(4) the bilateral fender plate that the utility model adopts rotates in seal casing shell, has the feature of compact structure, flexible operation, well can adapt to industry spot and install.
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 lateral plan;
AB direction cutaway view when Fig. 3 (a) is the utility model controllable register 0 degree;
AB direction cutaway view when Fig. 3 (b) is the utility model controllable register 45 degree;
AB direction cutaway view when Fig. 3 (c) is the utility model controllable register 90 degree;
Fig. 4 (a) and (b), (c) are the utility model difformity controllable register section drawings.
Wherein: adjustable baffle plate, 5-turning cylinder, 6-actuating unit, 7-seal casing shell, 8-gasket set, 9-liner plate windward under 1-flange, 2-pipeline arc, the upper adjustable baffle plate of 3-, 4-.
Detailed description of the invention
Fig. 1 is the utility model structural representation.As shown in Figure 1, the Geldart-D particle powder flow rate control apparatus that this bilateral baffle plate is adjustable comprises flange (1), pipeline arc (2), upper adjustable baffle plate (3), lower adjustable baffle plate (4), turning cylinder (5), actuating unit (6) and seal casing shell (7); It is characterized in that: described adjustable baffle plate (3,4) can be rotated in 0 to 90 degree; Be provided with gasket set (8) between described turning cylinder (5) and seal casing shell (7), when ensureing band powder runing adjustment, the leak tightness of pipeline, powder can not be revealed.Described seal casing shell (7) windward side is provided with liner plate (9) windward, prevents in long-time running, powder to the wearing and tearing of device, wash away.
Fig. 2 is the utility model lateral plan.As shown in Figure 2, the Geldart-D particle powder flow rate control apparatus that this bilateral baffle plate is adjustable is divided into upper and lower both sides, and upper and lower adjustable baffle plate can be driven by respective actuating unit and rotate, and reaches the effect changing the resistance of ducting, regulates flow velocity.Actuating unit form can be electronic, pneumatic, manual.
Fig. 3 is the utility model adjustable baffle plate AB direction 1/4 cutaway view when being in 0 degree, 45 degree, 90 degree respectively.When adjustable baffle plate is in 0 degree, as Fig. 3 (a), now, device flow area is maximum, and device is minimum to powder resistance, and regulating action is minimum, and powder flows through unit state and do not change.When adjustable baffle plate is in 90 degree, as Fig. 3 (c), now, device flow area is minimum, and device is maximum to powder resistance, and regulating action is maximum, effectively reduces powder flow rate concentration.When needs intervening resistance regulates, baffle plate is positioned at intermediate angle, such as Fig. 3 (b), and baffle plate is in 45 degree, meets and regulates flow velocity needs.
Fig. 4 (a) and (b), (c) are the section drawings of the utility model difformity adjustable baffle plate.Preferably, adjustable baffle plate is designed to arc or fold-line-shaped, thus increases adjustment resistance and the adjusting angle linearity, improves regulating effect.
Preferably, described pipeline arc, adjustable baffle plate, turning cylinder, windward liner plate are made by wear-resistant steel, all have 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 embodiment of the present utility model above, but the utility model 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 domain of the present utility model 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 bilateral baffle plate is adjustable, comprises flange (1), pipeline arc (2), upper adjustable baffle plate (3), lower adjustable baffle plate (4), turning cylinder (5), actuating unit (6) and seal casing shell (7); It is characterized in that: be provided with liner plate (9) windward in described seal casing shell (7), described upper fender plate (3) and lower adjustable baffle plate (4) can be rotated in 0 to 90 degree.
2. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, is characterized in that: be provided with seal ring (8) between described turning cylinder (5) and seal casing shell (7).
3. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, is characterized in that: the stop area of described upper and lower adjustable baffle plate (3,4) accounts for the long-pending 0-80% of pipeline section.
4. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, it is characterized in that: described pipeline arc (2), upper and lower adjustable baffle plate (3,4), turning cylinder (5), windward liner plate (9) are made by wear-resistant steel, and wherein pipeline arc (2) has ceramic-lined.
5. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, is characterized in that: described upper and lower adjustable baffle plate (3,4) its vertical section is orthogonal.
6. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, is characterized in that: described upper and lower adjustable baffle plate (3,4) its vertical section camber.
7. the Geldart-D particle powder flow rate control apparatus that bilateral baffle plate according to claim 1 is adjustable, is characterized in that: described upper and lower adjustable baffle plate (3,4) its vertical section becomes fold-line-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611998.9U CN204896814U (en) | 2015-08-14 | 2015-08-14 | Two side shield adjustable air conveying powder flow rate adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611998.9U CN204896814U (en) | 2015-08-14 | 2015-08-14 | Two side shield adjustable air conveying powder flow rate adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN204896814U true CN204896814U (en) | 2015-12-23 |
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| CN201520611998.9U Active CN204896814U (en) | 2015-08-14 | 2015-08-14 | Two side shield adjustable air conveying powder flow rate adjusting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059944A (en) * | 2015-08-14 | 2015-11-18 | 北京华清茵蓝科技有限公司 | Pneumatic conveying powder flowing speed adjusting device with adjustable double side baffle plates |
| CN108792630A (en) * | 2018-07-02 | 2018-11-13 | 芜湖万向新元环保科技有限公司 | A kind of sending cans for powdery material pneumatic conveying |
| WO2021164336A1 (en) * | 2020-02-18 | 2021-08-26 | 江苏丰尚智能科技有限公司 | Cleaning-type pneumatic conveying shield, and system and method for replacing puffing machine mold |
| CN113309632A (en) * | 2021-07-27 | 2021-08-27 | 北京星际荣耀空间科技股份有限公司 | Binary adjustable spray pipe adopting spherical seal |
| RU2817914C1 (en) * | 2023-08-11 | 2024-04-23 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Exhaust direction change device |
-
2015
- 2015-08-14 CN CN201520611998.9U patent/CN204896814U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059944A (en) * | 2015-08-14 | 2015-11-18 | 北京华清茵蓝科技有限公司 | Pneumatic conveying powder flowing speed adjusting device with adjustable double side baffle plates |
| CN105059944B (en) * | 2015-08-14 | 2017-12-08 | 北京华清茵蓝科技有限公司 | A kind of adjustable Geldart-D particle powder flow rate adjusting means of bilateral baffle plate |
| CN108792630A (en) * | 2018-07-02 | 2018-11-13 | 芜湖万向新元环保科技有限公司 | A kind of sending cans for powdery material pneumatic conveying |
| WO2021164336A1 (en) * | 2020-02-18 | 2021-08-26 | 江苏丰尚智能科技有限公司 | Cleaning-type pneumatic conveying shield, and system and method for replacing puffing machine mold |
| US11970347B2 (en) | 2020-02-18 | 2024-04-30 | Famsun Co., Ltd. | Clean pneumatic conveying shield, mold replacement system for expanding machine and replacement method |
| CN113309632A (en) * | 2021-07-27 | 2021-08-27 | 北京星际荣耀空间科技股份有限公司 | Binary adjustable spray pipe adopting spherical seal |
| RU2817914C1 (en) * | 2023-08-11 | 2024-04-23 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Exhaust direction change device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |