CN203437113U - Novel gas distribution plate and application - Google Patents
Novel gas distribution plate and application Download PDFInfo
- Publication number
- CN203437113U CN203437113U CN201320521905.4U CN201320521905U CN203437113U CN 203437113 U CN203437113 U CN 203437113U CN 201320521905 U CN201320521905 U CN 201320521905U CN 203437113 U CN203437113 U CN 203437113U
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- central area
- distribution grid
- gas distribution
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Abstract
The utility model relates to a novel gas distribution plate which comprises a central area, a transitional area, a marginal area, central holes, transitional holes and marginal holes. The central area is a round area and located in the center of the disk distribution plate; the transitional area is a round-square zone and connected with the central area; the marginal area is a round-square zone and located at the outer edge of the disk distribution plate; the central holes adopt a round hole structure and uniformly distributed in the central area; the transitional holes adopt a round hole structure and uniformly distributed in the transitional area; and the marginal holes adopt a round hole structure and uniformly distributed in the marginal area. The percentage of opening of the three area is increased continuously from the central area to the marginal area, the gas circulation flux is increased continuously in corresponding areas, under certain conditions, the marginal area is in a fluidization state, the central area is in a moving-bed state, and the work efficiency of a fluidized bed is improved. The novel gas distribution plate is good in structural stability, simple in structure and convenient to manufacture.
Description
Technical field
The utility model relates to a kind of new gas distribution grid, particularly a kind of gas distribution grid that is applied in rectifying column.
Background technology
A large amount of solid particles are suspended among the fluid of motion, thereby make particle have some appearance features of fluid, the solid contact condition of this stream is called fluidization of solid, i.e. fluid bed, and fluid bed is widely used in chemical industry.For the gas distribution grid of fluid bed, can make the gas uniform that enters into fluid bed distribute, can reduce like this fluid bed because internal gas skewness causes a large amount of hole of the inner generation of bed, when serious, may produce channel and dead bed.Generally at present, passage on gas distribution grid in fluid bed is uniform distribution grid, but while adding non-homogeneous material or multi-component masses in fluid bed, if adopt the equally distributed distribution grid of passage, tend to produce light proportion or short grained material has started fluidisation and large proportion or the oarse-grained material phenomenon of fluidisation not yet also, easily cause the phenomenon of the mobile obstruction of particle, if continue, increase fluidizing gas velocity, make oarse-grained material start fluidisation, light proportion or short grained material produce elutriation, make like this reaction efficiency greatly reduce.Therefore, develop a kind of gas distribution grid that can overcome the ill effect that fluid bed produces because of non-homogeneous material and seem particularly important
The utility model provides a kind of new gas distribution grid, and this new gas distribution grid can overcome the ill effect that fluid bed produces because of non-homogeneous material, improves the operating efficiency of fluid bed, has lower manufacturing cost, is convenient to safeguard, simple in structure, easily manufactured.
Utility model content
The technical problems to be solved in the utility model is: a kind of new gas distribution grid is provided, on collar plate shape distribution grid, there are 3 distributed areas that area is equal, on each region, be uniformly distributed the circular hole of different pore size, percent opening on from central area to 3 regions to fringe region constantly increases, the gas communication flux of respective regions constantly increases, make fringe region present fluidized state under certain condition, central area presents moving bed state, has improved the operating efficiency of fluid bed.
In order to address the above problem, the utility model is realized by following technology,
New gas distribution grid, comprises central area, transitional region, fringe region, centre bore, transitional pore, edge hole.Central area is border circular areas, is positioned at the central area of disk distribution grid; Transitional region, for circle square region, is connected with central area; Fringe region is for circle square region, in the outer edge of disk distribution grid; Centre bore is borehole structure, is evenly distributed in central area; Transitional pore is borehole structure, is evenly distributed in transitional region; Edge hole is borehole structure, is evenly distributed in fringe region.When fluid bed is worked, fluidizing gas is through the air compartment of lower end, respectively through central area, transitional region, fringe region, on gas distribution grid, not etc., little hole number does not increase the quantity of centre bore, transitional pore, edge hole successively, therefore has distributed areas of the same area, fringe region has maximum gas flux, central area has minimum gas flux, and larger gas flux can blow afloat the solid material of the fringe region in fluid bed, presents fluidized state; There is less gas flux central area, fluidizing gas is only by the solid material reaction of central area in fluid bed, and present moving bed state, the peripherad fringe region of solid material of bottom, central area flows, with the solid material that supplements fringe region, blown the material vacancy causing to top because of fluidization, solid material in layer bed has formed inner loop like this, thereby has extended the time of staying of solid material in bed, has greatly improved the separative efficiency of fluid bed.
Gas distribution grid has 3 flow regions, and 3 regions are that homalographic distributes.
Gas distribution grid has central area, and the percent opening of central area is 20-40%.
Gas distribution grid has transitional region, and the percent opening of transitional region is 40-60%.
Gas distribution grid has fringe region, and the percent opening of fringe region is 60-80%.
Adopted technique scheme, the beneficial effects of the utility model are:
New gas distribution grid, on collar plate shape distribution grid, there are 3 distributed areas that area is equal, on each region, be uniformly distributed the circular hole of different pore size, percent opening on from central area to 3 regions to fringe region constantly increases, the gas communication flux of respective regions constantly increases, make fringe region present fluidized state under certain condition, central area presents moving bed state, has improved the operating efficiency of fluid bed.
Therefore, the utility model is compared with common gas distribution grid, has outstanding advantage and is: (1) can overcome the ill effect that fluid bed produces because of non-homogeneous material; (2) low cost of manufacture, is convenient to safeguard; (3) structural stability is good, simple in structure, easily manufactured.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model.
In accompanying drawing 1: 1. distribution of gas dish; 2. central area; 3. transitional region; 4. fringe region; 5. centre bore; 6. transitional pore; 7. edge hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.Central area 2 is border circular areas, is positioned at the central area of disk distribution grid 1.Transitional region 3, for circle square region, is connected with central area 1; Fringe region 4 is circle square region, is positioned at the outer edge of disk distribution grid 1.Centre bore 5 is borehole structure, is evenly distributed in central area 2.Transitional pore 6 is borehole structure, is evenly distributed in transitional region 3.Edge hole 7 is borehole structure, is evenly distributed in fringe region 4.When fluid bed is worked, fluidizing gas is through the air compartment of lower end, respectively through central area 2, transitional region 3, fringe region 4, on gas distribution grid, not etc., little hole number does not increase the quantity of centre bore 5, transitional pore 6, edge hole 7 successively, therefore has distributed areas of the same area, fringe region 4 has maximum gas flux, central area 2 has minimum gas flux, and larger gas flux can blow afloat the solid material of the fringe region in fluid bed 4, presents fluidized state; There is less gas flux central area 2, fluidizing gas is only by the solid material reaction of central area in fluid bed 2, and present moving bed state, the peripherad fringe region 4 of solid material of 2 bottoms, central area flows, with the solid material that supplements fringe region 4, blown the material vacancy causing to top because of fluidization, solid material in layer bed has formed inner loop like this, thereby has extended the time of staying of solid material in bed, has greatly improved the separative efficiency of fluid bed.
Finally it should be noted that: above embodiment is only in order to illustrate the utility model and the described technical scheme of unrestricted the utility model; Therefore, although this description has been described in detail the utility model with reference to the above embodiments,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the utility model; And all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. a new gas distribution grid, is characterized in that: comprise central area, transitional region, fringe region, centre bore, transitional pore, edge hole.Described central area is border circular areas, is positioned at the central area of disk distribution grid; Described transitional region, for circle square region, is connected with central area; Described fringe region is for circle square region, in the outer edge of disk distribution grid; Described centre bore is borehole structure, is evenly distributed in central area; Described transitional pore is borehole structure, is evenly distributed in transitional region; Described edge hole is borehole structure, is evenly distributed in fringe region.
2. new gas distribution grid as claimed in claim 1, is characterized in that: described gas distribution grid has 3 flow regions.
3. new gas distribution grid as claimed in claim 1, is characterized in that: described gas distribution grid has central area, and the percent opening of central area is 20-40%.
4. new gas distribution grid as claimed in claim 1, is characterized in that: described gas distribution grid has central area, and the percent opening of central area is 40-60%.
5. new gas distribution grid as claimed in claim 1, is characterized in that: described gas distribution grid has central area, and the percent opening of central area is 60-80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521905.4U CN203437113U (en) | 2013-08-25 | 2013-08-25 | Novel gas distribution plate and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521905.4U CN203437113U (en) | 2013-08-25 | 2013-08-25 | Novel gas distribution plate and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203437113U true CN203437113U (en) | 2014-02-19 |
Family
ID=50088189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320521905.4U Expired - Fee Related CN203437113U (en) | 2013-08-25 | 2013-08-25 | Novel gas distribution plate and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203437113U (en) |
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2013
- 2013-08-25 CN CN201320521905.4U patent/CN203437113U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |