CN203886515U - Gas distribution device of multiphase bed - Google Patents
Gas distribution device of multiphase bed Download PDFInfo
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- CN203886515U CN203886515U CN201420276383.0U CN201420276383U CN203886515U CN 203886515 U CN203886515 U CN 203886515U CN 201420276383 U CN201420276383 U CN 201420276383U CN 203886515 U CN203886515 U CN 203886515U
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- distribution device
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- bed
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- 238000009826 distribution Methods 0.000 title claims abstract description 58
- 239000012530 fluid Substances 0.000 claims description 43
- 241000700608 Sagitta Species 0.000 claims description 12
- 239000007790 solid phase Substances 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 3
- 239000012071 phase Substances 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 34
- 239000002184 metal Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 229920005479 Lucite® Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a gas distribution device of a multiphase bed. The gas distribution device of the multiphase bed comprises a spherical part and a circular boundary part, wherein the cross section of the spherical part is in an arc shape. A plurality of drilling holes are formed in the gas distribution device of the multiphase bed, and the opening rate of the drilling holes is 0.05% to 2%. By using the gas distribution device, the problem of dead zones formed in three-phase and multiphase beds due to solid-phase precipitation is effectively solved; in same operating conditions, the solid-phase fluidized state in the bed is more uniform; when the same fluidized state is achieved, the used feed gas is less, and the utilization rate of raw materials is increased.
Description
Technical field
The utility model relates to a kind of heterogeneous bed distribution device in gas-fluid.
Background technology
Heterogeneous bed is with its good heat transfer, mass transfer, alternate abundant contact and can continued operation characteristic be widely applied in a lot of fields efficiently.In heterogeneous bed bioreactor, unstripped gas enters from reactor bottom, and by distribution device in gas-fluid, gas enters heterogeneous bed with the form of bubble, is full of liquid and solid mixture in bed, and gas is diffused into solid phase surface by liquid phase and reacts.Gaseous product and unreacted unstripped gas leave reactor by the gas vent on the top of reactor.Reaction heat is delivered to cooling coil and is produced steam by heterogeneous bed.Because slurry state phase thermal capacitance is large, and bubble obtains strenuous exercise and makes reaction heat easily pass to cooling coil, so the nearly isothermal operation of heterogeneous bench grafting, temperature control easily and flexibly.Heterogeneous bed bioreactor can better be controlled product and obtain selectively; Bed pressure drop is low, can reduce gas compression expense, the replacing of online solid phase and supplementary very convenient, and demonstrate larger technical advantage, be the synthetic liquid fuel technology of giving priority in the world at present.
Distribution device in gas-fluid is the emphasis part of the heterogeneous bed bioreactor design in the synthetic hydrocarbon of synthesis gas field.The design of distribution device in gas-fluid has determined that air-flow enters the form of reactor, it is the important component that ensures heterogeneous good and stable fluidized state, although it is only 0.2～0.3m to the direct effect scope of reactor, it but has conclusive effect to whole bed fluidized state.Cause thus specific hydrodynamics and transmit performance, and then having influence on to some extent chemical reaction process, so must reasonably select distribution of gas gas device in the time that specific reactor designs.The utility model is developed a kind of new gas distribution apparatus, utilizes this distributor to obtain tiny uniform bubble, and improves Gas-Liquid Dispersion situation in gas-liquid contanct equipment, strengthening gas-liquid mass transfer ability, thus be issued to higher mass transfer ability in lower energy consumption.
Utility model content
The technical problems to be solved in the utility model is that the gas-liquid mass transfer ability in order to overcome prior art distribution device in gas-fluid is poor, and the in poor shape defect of Gas-Liquid Dispersion in apparatus for effecting gas/liquid contact provides a kind of heterogeneous bed distribution device in gas-fluid.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of heterogeneous bed distribution device in gas-fluid, its feature is, described heterogeneous bed distribution device in gas-fluid comprises a sphere portion and a ring-type boundary portion, the cross sectional shape of described sphere portion is an arc, on described heterogeneous bed distribution device in gas-fluid, be also provided with some boring, the percent opening of described boring is 0.05%～2%.
Preferably, the percent opening of described boring is 0.15%.
Preferably, the axis of described boring and the angle of horizontal plane angle are 30 °～90 °.
Preferably, the radius of described boring is 0.5mm～50mm.
Preferably, the sagitta of described arc is 1mm～1000mm, and the width of described ring-type boundary portion is 1mm～100mm.
In the utility model, above-mentioned optimum condition can be combined on the basis that meets this area general knowledge, obtains each preferred embodiment of the present utility model.
Positive progressive effect of the present utility model is: the problem that 1, has effectively solved the heterogeneous bed of three-phase solid phase precipitation formation dead band; 2,, under identical operating condition, in bed, solid phase fluidized state is more even; 3,, while reaching identical fluidized state, unstripped gas used still less, has improved the utilization rate of raw material.
Brief description of the drawings
Fig. 1 is heterogeneous bed distribution device in gas-fluid side structure schematic diagram of the present utility model.
Fig. 2 is heterogeneous bed distribution device in gas-fluid Facad structure schematic diagram of the present utility model.
Detailed description of the invention
Enumerate preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
As depicted in figs. 1 and 2, heterogeneous bed distribution device in gas-fluid of the present utility model is formed by a circular metal plate punching press, described heterogeneous bed distribution device in gas-fluid comprises a sphere portion 1 and a ring-type boundary portion 2, the cross sectional shape of sphere portion 1 is an arc, and the ratio of the sagitta of described arc and the radius of described circular metal plate is 0.4～0.7.Wherein, the radius of described circular metal plate is 20mm～2000mm.The radius ratio of the sagitta of described arc and described circular metal plate is 0.4.The thickness of described circular metal plate is 0.1mm～20mm.The sagitta of described arc is 1mm～1000mm, and the width of described ring-type boundary portion is 1mm～100mm.
On described heterogeneous bed distribution device in gas-fluid, be provided with some boring 3, the percent opening of boring 3 (being the area of each boring 3 and the ratio with the area of heterogeneous bed distribution device in gas-fluid) is 0.05%～2%.The axis of described boring 3 and the angle of horizontal plane angle are 30 °～90 °.The radius of boring is 0.5mm～50mm.
Heterogeneous bed distribution device in gas-fluid preparation method comprises the following steps:
Step 1, get a circular metal plate, radius 20mm～2000mm, thickness 0.1mm～20mm, from center punching press, formation comprises one heterogeneous distribution device in gas-fluid of a sphere portion and a ring-type boundary portion, described sphere portion cross sectional shape is an arc, and the sagitta of described arc is 1mm～1000mm, and the radius ratio of the sagitta of described arc and described circular metal plate is 0.4～0.7;
Step 2, on described heterogeneous bed distribution device in gas-fluid, get out some boring, the angle of described drilling axis and horizontal plane angle is 30 °～90 °, and boring aperture is 0.5mm～50mm, and the percent opening of described boring is 0.05%～2%.Be below concrete effect embodiment:
Embodiment 1
The present embodiment carries out in the order solid A system of Air-Water-500.At diameter 68mm, in the lucite reactor of high 1000mm, (500 order solid A represent that solid A can pass through 500 eye mesh screens to add quantitative 500 order solid A, solid A is water-fast arbitrarily conventional test substances) and water, making initial solid holdup is 5.03%, has four thief holes at reactor limit wall differing heights, compile from bottom to up and (be highly respectively 100mm for hole 1, hole 2, hole 3, hole 4,300mm, 500mm, 700mm).Test with the plate distribution device in gas-fluid of prior art and the heterogeneous bed distribution device in gas-fluid of the present embodiment respectively, so that relatively.On plate distribution device in gas-fluid, be uniformly distributed 15 0.7mm holes, percent opening is about 0.15%, is uniformly distributed 13 0.7mm holes on arc distribution device in gas-fluid, and percent opening is about 0.15%.Distribution effect is as shown in table 1, is respectively the present embodiment in the time of flow velocity 5cm/s, 3cm/s, 1cm/s and the solid holdup data that obtain in hole 1, hole 2, hole 3 and the hole 4 of prior art in the time of flow velocity 5cm/s, 3cm/s and 1cm/s.
Table 1
Can see by data, under identical flow velocity, the utility model is all better than the solid holdup of prior art in 1-hole, hole 4 at the solid holdup in 1-hole, hole 4.
Embodiment 2
The present embodiment carries out in the order solid A system of air-liquid paraffin-500.At diameter 68mm, in the lucite reactor of high 1000mm, add quantitative 500 order solid A and atoleines, making initial solid holdup is 5.03%, have four thief holes at reactor limit wall differing heights, compile from bottom to up and (be highly respectively 100mm, 300mm for hole 1, hole 2, hole 3, hole 4,500mm, 700mm).Test with plate distribution device in gas-fluid and the present embodiment distribution device in gas-fluid respectively, so that relatively.On plate distribution device in gas-fluid, be uniformly distributed 15 0.7mm holes, percent opening is about 0.15%, on the heterogeneous bed of the present embodiment distribution device in gas-fluid, is uniformly distributed 13 0.7mm holes, and percent opening is about 0.15%.Distribution effect is as shown in table 2, is respectively the present embodiment in the time of flow velocity 5cm/s, 3cm/s, 1cm/s and the solid holdup data that obtain in hole 1, hole 2, hole 3 and the hole 4 of prior art in the time of flow velocity 5cm/s, 3cm/s and 1cm/s.
Table 2
Can see by data, under identical flow velocity, the utility model is all better than the solid holdup of prior art in 1-hole, hole 4 at the solid holdup in 1-hole, hole 4.
Example 3
The present embodiment carries out in the order solid A system of Air-Water-325.At diameter 68mm, in the lucite reactor of high 1000mm, add quantitative 325 order solid A and water, making initial solid holdup is 5.03%, has four thief holes at reactor limit wall differing heights, compiles from bottom to up as hole 1, hole 2, hole 3, hole 4.Test with plate distribution device in gas-fluid and the present embodiment distribution apparatus respectively, so that relatively.On plate distribution device in gas-fluid, be uniformly distributed 15 0.7mm holes, percent opening is about 0.15%, is uniformly distributed 13 0.7mm holes on the present embodiment distribution apparatus, and percent opening is about 0.15%.Distribution effect is as shown in table 3, is respectively the present embodiment in the time of flow velocity 5cm/s, 3cm/s, 1cm/s and the solid holdup data that obtain in hole 1, hole 2, hole 3 and the hole 4 of prior art in the time of flow velocity 5cm/s, 3cm/s and 1cm/s.
Table 3
Can see by data, under identical flow velocity, the utility model is all better than the solid holdup of prior art in 1-hole, hole 4 at the solid holdup in 1-hole, hole 4.
Example 4
The present embodiment carries out in the order solid A system of air-liquid paraffin-325.At diameter 68mm, in the lucite reactor of high 1000mm, add quantitative 325 order solid A and atoleines, making initial solid holdup is 5.03%, has four thief holes at reactor limit wall differing heights, compiles from bottom to up as hole 1, hole 2, hole 3, hole 4.Test with plate distribution device in gas-fluid and the present embodiment distribution apparatus respectively, so that relatively.On plate distribution device in gas-fluid, be uniformly distributed 15 0.7mm holes, percent opening is about 0.15%, is uniformly distributed 13 0.7mm holes on the present embodiment distribution device in gas-fluid, and percent opening is about 0.15%.Distribution effect is as shown in table 4, is respectively the present embodiment in the time of flow velocity 5cm/s, 3cm/s, 1cm/s and the solid holdup data that obtain in hole 1, hole 2, hole 3 and the hole 4 of prior art in the time of flow velocity 5cm/s, 3cm/s and 1cm/s.
Table 4
Example 5
The present embodiment carries out in the order solid A system of Air-Water-500.At diameter 68mm, in the lucite reactor of high 1000mm, add quantitative 500 order solid A and water, making initial solid holdup is 5.03%, has four thief holes at reactor limit wall differing heights, compiles from bottom to up as hole 1, hole 2, hole 3, hole 4.Be respectively 0.4,0.6 with the ratio of the sagitta of described arc and the radius of described circular metal plate respectively, 0.5,0.7 of the present utility model heterogeneous bed distribution device in gas-fluid is tested.On the heterogeneous bed of the utility model distribution device in gas-fluid of test, be uniformly distributed 13 0.7mm holes, percent opening is 0.15%.Distribution effect is as shown in table 5, is respectively flow velocity while being 5.0cm/s, and the utility model is 0.4,0.6,0.5 and the data of the solid holdup of 0.7 o'clock at the ratio of the sagitta of described arc and the radius of described circular metal plate.
Table 5
| Sagitta radius ratio | 0.4 | 0.6 | 0.5 | 0.7 |
| Hole 1 | 5.12％ | 5.03％ | 5.10％ | 5.04％ |
| Hole 2 | 4.90％ | 4.97％ | 4.95％ | 4.50％ |
| Hole 3 | 4.80％ | 4.81％ | 4.85％ | 3.96％ |
| Hole 4 | 4.70％ | 4.82％ | 4.80％ | 3.80％ |
Example 6
The present embodiment carries out in the order solid A system of Air-Water-500.At diameter 68mm, in the lucite reactor of high 1000mm, add quantitative 500 order solid A and water, making initial solid holdup is 5.03%, have four thief holes at reactor limit wall differing heights, compile from bottom to up and (be highly respectively 100mm, 300mm for hole 1, hole 2, hole 3, hole 4,500mm, 700mm).Test with the arc distribution device in gas-fluid that the ratio of the sagitta of described arc and the radius of described circular metal plate is 0.4,0.6 respectively.On distribution device in gas-fluid, being uniformly distributed aperture is 0.7mm, and percent opening is respectively 0.1%, 0.2% and 0.05%.Gas speed is 5.0cm/s.The solid holdup in the 1-hole, hole 4 of the present embodiment is as shown in table 6.
Table 6
Can find out by table 5 and table 6, no matter how the ratio of the sagitta of described arc and the radius of described circular metal plate changes, it is 0.1%, 0.2% and 0.05% situation that the numerical value of solid holdup when under the same conditions, percent opening is 0.15% and uniformity will obviously be better than percent opening.
Although more than described detailed description of the invention of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and amendment all fall into protection domain of the present utility model.
Claims (5)
1. a heterogeneous bed distribution device in gas-fluid, it is characterized in that, described heterogeneous bed distribution device in gas-fluid comprises a sphere portion and a ring-type boundary portion, the cross sectional shape of described sphere portion is an arc, on described heterogeneous bed distribution device in gas-fluid, be also provided with some boring, the percent opening of described boring is 0.05%～2%.
2. heterogeneous bed distribution device in gas-fluid as claimed in claim 1, is characterized in that, the percent opening of described boring is 0.15%.
3. heterogeneous bed distribution device in gas-fluid as claimed in claim 1, is characterized in that, the axis of described boring and the angle of horizontal plane angle are 30 °～90 °.
4. heterogeneous bed distribution device in gas-fluid as claimed in claim 1, is characterized in that, the radius of described boring is 0.5mm～50mm.
5. the heterogeneous bed distribution device in gas-fluid as described in claim 1-4 any one, is characterized in that, the sagitta of described arc is 1mm～1000mm, and the width of described ring-type boundary portion is 1mm～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276383.0U CN203886515U (en) | 2014-05-27 | 2014-05-27 | Gas distribution device of multiphase bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276383.0U CN203886515U (en) | 2014-05-27 | 2014-05-27 | Gas distribution device of multiphase bed |
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| CN203886515U true CN203886515U (en) | 2014-10-22 |
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| CN201420276383.0U Expired - Lifetime CN203886515U (en) | 2014-05-27 | 2014-05-27 | Gas distribution device of multiphase bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907930A (en) * | 2015-12-23 | 2017-06-30 | 沈阳铝镁设计研究院有限公司 | A kind of fluidizing cooler fluidized wind even distribution device |
| CN110030855A (en) * | 2018-05-31 | 2019-07-19 | 沈阳铝镁设计研究院有限公司 | A kind of fluidizing cooler fluidized wind even distribution device |
-
2014
- 2014-05-27 CN CN201420276383.0U patent/CN203886515U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907930A (en) * | 2015-12-23 | 2017-06-30 | 沈阳铝镁设计研究院有限公司 | A kind of fluidizing cooler fluidized wind even distribution device |
| CN110030855A (en) * | 2018-05-31 | 2019-07-19 | 沈阳铝镁设计研究院有限公司 | A kind of fluidizing cooler fluidized wind even distribution device |
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| GR01 | Patent grant |