CN202643332U - Gas distribution device for silicon chloride low-temperature hydrogenation fluidized bed - Google Patents
Gas distribution device for silicon chloride low-temperature hydrogenation fluidized bed Download PDFInfo
- Publication number
- CN202643332U CN202643332U CN 201220246314 CN201220246314U CN202643332U CN 202643332 U CN202643332 U CN 202643332U CN 201220246314 CN201220246314 CN 201220246314 CN 201220246314 U CN201220246314 U CN 201220246314U CN 202643332 U CN202643332 U CN 202643332U
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- bubble
- cap
- gas distribution
- bubble cap
- fluidized bed
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Abstract
The utility model relates to a gas distribution device for a silicon chloride low-temperature hydrogenation fluidized bed. The gas distribution device comprises a gas distribution plate and a plurality of bubble caps, wherein the gas distribution plate is of a circular shape and a plurality of bubble cap mounting holes are uniformly distributed thereon, and the plurality of the bubble caps are correspondingly arranged in the plurality of the bubble cap mounting holes respectively. The gas distribution device is characterized in that each bubble cap comprises a bubble cap, a raise steam pipe and a bubble cap distribution plate; the top portion of the bubble cap is provided with a mounting nut, the bubble cap distribution plate is arranged below the bubble cap, the bottom of the raise steam pipe is provided with a gas inlet uniform distribution hole plate, and the raise steam pipe penetrates through the bubble cap distribution plate and extends into the inner part of the bubble cap; two sides of the raise steam pipe at the bottom of the bubble cap distribution plate are provided with external threaded connecting parts respectively, and the connecting parts connect the bubble cap and the corresponding bubble cap mounting hole together; and a bubble cap supporting rib plate is arranged between the inner wall of the bubble cap and the outer wall of the raise steam pipe. The gas distribution device is simple in structure and convenient in installation and replacement, and has the characteristics of long-term stable operation, uniform airflow distribution, and good safety.
Description
Technical field
The utility model relates to a kind of distribution device in gas-fluid, relates in particular to a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus.
Background technology
Distribution device in gas-fluid is one of core vitals of fluidization equipment.Its Main Function is that the fluid that enters fluidized-bed is evenly distributed along the bed section, does not cause bed dead bed district to occur, simultaneously it can also be when shut-down operation material in the support bed, do not cause in its pre-distribution apparatus that bleeds.
Whether the distribution apparatus structure is suitable, is one of key of fluidization operation success or failure.The design of successful distribution apparatus is mainly reflected in: one, the stable operation that can keep for a long time fluidized-bed, not reason particle deposition and cause pressure drop obviously to change; Its two, fluid is evenly distributed along the bed section, in the distribution apparatus near zone, gas-solid two-phase fully contacts, reacts; Its three, eyelet or slit in the distribution apparatus are not prematured by solids, during shut-down operation, the bed material can not bleed under the grid distributor by distribution apparatus; Its four, flow reduces through the drag losses of distribution apparatus, reduce energy consumption; Its five, simple in structure, it is convenient to make, install and change.
The distribution apparatus that fluidized-bed uses in the prior art is not suitable for silicon tetrachloride at low temperature hydrogenation fluidized-bed, and has some defectives in actual production.The bubble-cap of silicon tetrachloride at low temperature hydrogenation fluidized-bed distribution apparatus of the prior art mainly is made of two portions, is respectively bubble cap and riser.The riser top is cecum, cecum bottom several air-flow distribution holes that radially evenly distribute.Air-flow is entered by the riser vertical direction from grid distributor bottom, and then changes transverse movement into through the radially-arranged air-flow distribution hole in riser top, and air-flow is sprayed onto to change into behind the bubble cap inwall and moves downward, and then enters the Reaktionsofen reaction compartment through the bubble cap edge.If the Reaktionsofen fluidized-bed is because of other reason bed that collapses suddenly, a large amount of silica flours can be full of the bubble-cap space.If reenter fluidizing agent this moment, the transverse movement of gas in bubble-cap will drive silica flour bump bubble-cap inwall in the bubble-cap, and bubble-cap is punctured again.After the bubble-cap puncture, the air-flow of transverse movement drives the direct knock-on reaction stove of silica flour inwall, may cause for a long time Reaktionsofen breakdown, has great potential safety hazard.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can operation steady in a long-term, air-flow is evenly distributed, security is good silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus.
For addressing the above problem, a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus described in the utility model comprises gas distribution grid and several bubble-caps; Described gas distribution grid is rounded, is evenly equipped with several bubble-cap open holess on it, and these several bubble-cap open holess one by one correspondence are equipped with described several bubble-caps, it is characterized in that: described each bubble-cap comprises bubble cap, riser and bubble-cap grid distributor; The top of described bubble cap is provided with mounting nuts, and its below is provided with described bubble-cap grid distributor; The bottom of described riser is provided with the uniform orifice plate of air inlet, and passes described bubble-cap grid distributor and stretch into described bubble cap inside; The both sides of the described riser of described bubble-cap grid distributor bottom are respectively equipped with and are externally threaded connection section, and this connection section connects one to one described bubble-cap and described bubble-cap open holes together; Be provided with bubble cap between described bubble cap inwall and the described riser outer wall and support floor.
Described several bubble-cap open holess are arranged axisymmetricly with the medullary ray of described gas distribution grid, or are centrosymmetric with the center of described gas distribution grid and arrange.
Described several bubble-cap open holess are arranged on the described gas distribution grid with equilateral triangle or rhombus interlace mode, and spacing distance is 100 ~ 400mm between the Kong Yukong of described several bubble-cap open holess.
The inwall of described each bubble-cap open holes is provided with internal thread, and the outside screw of this internal thread and described connection section is complementary.
Described mounting nuts is located at described bubble cap top center position.
Be provided with the several piece bubble cap between described bubble cap inwall and the described riser outer wall and support floor.
The diameter of described bubble cap is less than the diameter of described bubble-cap grid distributor, and described bubble-cap grid distributor is circular plate type.
The spacing of the bottom of described bubble cap and described bubble-cap grid distributor is 10 ~ 100mm.
The aperture of the uniform orifice plate of described air inlet is less than the internal diameter of described riser.
The utility model compared with prior art has the following advantages:
1, owing to the unique texture of bubble-cap in the utility model, air-flow is sprayed onto the bubble-cap top after entering bubble-cap by riser by vertical direction, then change direction, move downward along the bubble cap inwall, the bubble-cap grid distributor of running into the bubble-cap bottom changes again direction for upwards, enters space reactor.
2, because therefore bubble-cap evenly distribution on gas distribution grid in the utility model, can make fluid evenly distribute along the bed section, and mixing of materials is even, dead band and local superheating can not occur, gas-solid abundant contact, reaction improve reaction efficiency.
3, because the unique texture of bubble-cap in the utility model, and the distance of bubble cap base and bubble-cap grid distributor is less, therefore, can reduce the bed solid particulate as far as possible and enter the bubble-cap internal space, prevent from resulting in blockage because of particle deposition, pressure drop raises, the long-term stability operation that can keep fluidized-bed, even shut-down operation or because certain reason causes the bed that collapses, bed material can not bled under the gas distribution grid by distribution apparatus yet, and again pass into fluidizing agent driving fluidisation this moment again, can not cause gas to drive solid particulate bump bubble-cap inwall yet, bubble-cap can not punctured, more not have the phenomenon of knock-on reaction stove inwall, eliminate the breakdown potential safety hazard of Reaktionsofen.
4, the utility model is simple in structure, and it is convenient to install, change.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is gas distribution grid structural representation in the utility model.
Fig. 3 is bubble-cap vertical view in the utility model.
Fig. 4 is bubble-cap front view in the utility model.
Fig. 5 is bubble-cap front view A-A sectional view in the utility model.
Fig. 6 is bubble-cap front view B-B sectional view in the utility model.
Among the figure: 1-gas distribution grid, 2-bubble-cap, 3-mounting nuts, 4-bubble cap, 5-bubble cap supports the uniform orifice plate 9-connection section of floor 6-riser, 7-bubble-cap grid distributor 8-air inlet 10-bubble-cap open holes.
Embodiment
As shown in Figure 1 and Figure 2, a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus comprises gas distribution grid 1 and several bubble-caps 2.Gas distribution grid 1 is rounded, is evenly equipped with several bubble-cap open holess 10 on it, and these several bubble-cap open holess 10 one by one correspondence are equipped with several bubble-caps 2.Several bubble-cap open holess 10 are arranged axisymmetricly with the medullary ray of gas distribution grid 1, or are centrosymmetric with the center of gas distribution grid 1 and arrange.Several bubble-cap open holess 10 are arranged on the gas distribution grid 1 with equilateral triangle or rhombus interlace mode, and spacing distance is 100 ~ 400mm between the Kong Yukong of several bubble-cap open holess 10.
Each bubble-cap 2 comprises that bubble cap 4, riser 6 and bubble-cap grid distributor 7(are referring to Fig. 3 ~ 6).The top of bubble cap 4 is provided with mounting nuts 3, and its below is provided with bubble-cap grid distributor 7; The bottom of riser 6 is provided with the uniform orifice plate 8 of air inlet, and passes bubble-cap grid distributor 7 and stretch into bubble cap 4 inside; The both sides of the riser 6 of bubble-cap grid distributor 7 bottoms are respectively equipped with and are externally threaded connection section 9, and this connection section 9 connects one to one bubble-cap 2 and bubble-cap open holes 10 together; Be provided with bubble cap between bubble cap 4 inwalls and riser 6 outer walls and support floor 5.
Wherein: the inwall of each bubble-cap open holes 10 is provided with internal thread, and the outside screw of this internal thread and connection section 9 is complementary.
Be provided with the several piece bubble cap between bubble cap 4 inwalls and riser 6 outer walls and support floor 5.
The diameter of bubble cap 4 is less than the diameter of bubble-cap grid distributor 7, and bubble-cap grid distributor 7 is circular plate type.
The spacing of the bottom of bubble cap 4 and bubble-cap grid distributor 7 is 10 ~ 100mm.
The aperture of the uniform orifice plate 8 of air inlet is less than the internal diameter of riser 6.
Claims (9)
1. a silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus comprises gas distribution grid (1) and several bubble-caps (2); Described gas distribution grid (1) is rounded, be evenly equipped with several bubble-cap open holess (10) on it, these several bubble-cap open holess (10) one by one correspondence are equipped with described several bubble-caps (2), it is characterized in that: described each bubble-cap (2) comprises bubble cap (4), riser (6) and bubble-cap grid distributor (7); The top of described bubble cap (4) is provided with mounting nuts (3), and its below is provided with described bubble-cap grid distributor (7); The bottom of described riser (6) is provided with the uniform orifice plate of air inlet (8), and passes described bubble-cap grid distributor (7) and stretch into described bubble cap (4) inside; The both sides of the described riser (6) of described bubble-cap grid distributor (7) bottom are respectively equipped with and are externally threaded connection section (9), and this connection section (9) connects one to one described bubble-cap (2) and described bubble-cap open holes (10) together; Be provided with bubble cap between described bubble cap (4) inwall and described riser (6) outer wall and support floor (5).
2. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: described several bubble-cap open holess (10) are arranged axisymmetricly with the medullary ray of described gas distribution grid (1), or are centrosymmetric with the center of described gas distribution grid (1) and arrange.
3. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 2, it is characterized in that: described several bubble-cap open holess (10) are arranged on the described gas distribution grid (1) with equilateral triangle or rhombus interlace mode, and spacing distance is 100 ~ 400mm between the Kong Yukong of described several bubble-cap open holess (10).
4. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: the inwall of described each bubble-cap open holes (10) is provided with internal thread, and the outside screw of this internal thread and described connection section (9) is complementary.
5. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: described mounting nuts (3) is located at described bubble cap (4) top center position.
6. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1 is characterized in that: be provided with the several piece bubble cap between described bubble cap (4) inwall and described riser (6) outer wall and support floor (5).
7. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: the diameter of described bubble cap (4) is less than the diameter of described bubble-cap grid distributor (7), and described bubble-cap grid distributor (7) is circular plate type.
8. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: the spacing of the bottom of described bubble cap (4) and described bubble-cap grid distributor (7) is 10 ~ 100mm.
9. a kind of silicon tetrachloride at low temperature hydrogenation fluidized bed gas distribution apparatus as claimed in claim 1, it is characterized in that: the aperture of the uniform orifice plate of described air inlet (8) is less than the internal diameter of described riser (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246314 CN202643332U (en) | 2012-05-30 | 2012-05-30 | Gas distribution device for silicon chloride low-temperature hydrogenation fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246314 CN202643332U (en) | 2012-05-30 | 2012-05-30 | Gas distribution device for silicon chloride low-temperature hydrogenation fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643332U true CN202643332U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220246314 Expired - Lifetime CN202643332U (en) | 2012-05-30 | 2012-05-30 | Gas distribution device for silicon chloride low-temperature hydrogenation fluidized bed |
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| CN (1) | CN202643332U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435105A (en) * | 2018-05-29 | 2018-08-24 | 尹明大 | A kind of combined gas distributor and fluidized-bed reactor |
| CN109046186A (en) * | 2018-08-03 | 2018-12-21 | 新奥科技发展有限公司 | A kind of catalyst fluidization unit and fluidized-bed catalytic reactor |
-
2012
- 2012-05-30 CN CN 201220246314 patent/CN202643332U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435105A (en) * | 2018-05-29 | 2018-08-24 | 尹明大 | A kind of combined gas distributor and fluidized-bed reactor |
| CN109046186A (en) * | 2018-08-03 | 2018-12-21 | 新奥科技发展有限公司 | A kind of catalyst fluidization unit and fluidized-bed catalytic reactor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |