CN203731831U - Air flow distribution plate with suspended flow guide pieces - Google Patents
Air flow distribution plate with suspended flow guide pieces Download PDFInfo
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- CN203731831U CN203731831U CN201320563782.0U CN201320563782U CN203731831U CN 203731831 U CN203731831 U CN 203731831U CN 201320563782 U CN201320563782 U CN 201320563782U CN 203731831 U CN203731831 U CN 203731831U
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- distribution
- flow guide
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- board
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Abstract
The utility model relates to an air flow distribution plate with suspended flow guide pieces. The air flow distribution plate comprises a distribution plate, springs, flow guide columns, flat flow guide plates and inverted-cone-shaped distribution holes. The distribution plate is a round flat plate. The inverted-cone-shaped distribution holes are evenly distributed in the flat plate. The springs are respectively connected to the flat flow guide plates and the upper end face of the distribution plate, and suspension of a flow guide device is realized by elastic force of the springs. The conical flow guide columns are connected to the lower ends of the flat flow guide plates, and the cone angle ranging from 120 degrees to 150 degrees is identical to that of each inverted-cone-shaped distribution hole. The flat flow guide plates cover the upper ends of the distribution holes, so that rising gas in the distribution holes can be prevented from vertically flowing into a packing layer; the rising gas blows the flow guide device to float during working, and the flow guide columns and the surface of the distribution plate have small-angle directional flow, so that the small channeling in a bed is avoided, blocking of small particles to rising gas holes is effectively prevented by the flat flow guide plates, and uniform gas distribution can be realized through uniform distribution of the rising gas holes; the air flow distribution plate is simple in structure and convenient to produce.
Description
Technical field
The utility model relates to the air-flow distribution technique in fluid bed, particularly relates to a kind of airflow-distribution board with suspension flow deflector.
Background technology
In fluid bed, a large amount of solid particles is suspended among the fluid of motion, thereby particle there is be similar to some apparent characteristic of fluid, fluidization has been applied in the industries such as medicine, mineral separation, food, especially in food service industry, fluidized bed drying device is widely used, and it is simple that fluidized bed drying device has device, and equipment manufacturing cost is cheap, easily, maintenance cost is low in maintenance; In operation process, material and air-flow contact area are large, and thermal capacity is large, and heat-transfer effect is good, and device efficiency is high, applicability is strong; Material time of staying in device is shorter, and rate of drying is very fast, is particularly suitable for some heat sensitive materials to be dried the advantages such as processing.The operation principle of fluidized bed drying device, is to allow the material that is dried on the one hand be blown afloat, mix mutually, roll, to contact fully with air again on the other hand in air-flow, and the transmission of carrying out quickly and efficiently heat and humidity exchanges, thereby reaches dry object; In gas-solid fluidized bed, always there is the inhomogeneities of certain degree along the distribution of bed cross section and the contact of gas-solid two-phase in gas, this is all disadvantageous for the heat transfer in fluid bed, mass transfer and reaction, distribution grid is as the critical component in fluidized bed drying device, can well improve the even fluid distribution degree of fluid bed inside, at present, more conventional distribution grid is rondelle distribution grid, uprising gas is by the distribution mouth circular hole on plectane, be distributed in fluid bed, this distributing plate structure is simple, easy to manufacture; But also have weak point, gas distributes along the direction perpendicular to bed by distribution grid in this, is easy to so at work produce little channel, has reduced heat transfer, mass-transfer efficiency between material and air-flow; The material of smaller particle size can stop up the air rising hole in distribution grid simultaneously, causes the uneven distribution of gas, has reduced the separative efficiency of fluidized bed drying device.Therefore, exploitation one can prevent from producing in fluid bed little channel, and can avoid air rising hole to stop up, and it is very important realizing the airflow-distribution board that gas uniform distributes.
The utility model is exactly the deficiency that will overcome airflow-distribution board in more existing fluid beds, a kind of airflow-distribution board with suspension flow deflector is provided, this airflow-distribution board can prevent from producing in fluid bed little channel, and can avoid air rising hole to stop up, and realizes being uniformly distributed of gas in fluid bed.
Utility model content
The technical problems to be solved in the utility model is: a kind of airflow-distribution board with suspension flow deflector is provided, this airflow-distribution board has inverted cone distribution hole, the top of circular cone distribution hole is with the guiding device suspending, guiding device is made up of diversion column and deflector, between deflector and distribution grid with support spring, in the time not having gas to pass into, air flow guiding device relies on gravity to overcome the effect of the elastic force of spring, deflector will cover distribution hole, can prevent like this material from leakage, in the time of work, uprising gas by distribution hole can blow floating guiding device, the guiding device suspending cannot just blow out air-flow to bed, there is the direction of a smaller angle to flow but be with the plate face of described distribution grid, so just avoid the generation of the medium and small channel of bed, water conservancy diversion flat board has also effectively prevented the obstruction of granule to air rising hole, equally distributed air rising hole can be realized being uniformly distributed of gas.
In order to address the above problem, the utility model is realized by following technology,
A kind of airflow-distribution board with suspension flow deflector comprises: distribution grid, spring, diversion column, water conservancy diversion flat board, inverted cone distribution hole.Distribution grid is circular dull and stereotyped, is evenly distributed with inverted cone distribution hole on flat board; Spring is connected to the upper surface of water conservancy diversion flat board and distribution grid, relies on the elastic force of spring to realize the suspension of guiding device; Diversion column is connected to the lower end of water conservancy diversion flat board, diversion column journey cone shape, and coning angle is identical with inverted cone distribution hole, and coning angle is 120-150 °, and the rising of diversion column and decline can change the circulation flow of uprising gas; Water conservancy diversion flat board covers the upper end of distribution hole, can prevent that the uprising gas in distribution hole from vertically flowing in packing layer; Inverted cone distribution hole, the inlet hole aperture of distribution hole is 15-30mm.In the time that fluidized bed drying device stops, air flow guiding device relies on gravity to overcome the effect of the elastic force of spring, water conservancy diversion flat board will cover distribution hole, can prevent like this material from leakage, in the time of work, uprising gas by distribution hole can blow floating guiding device, the guiding device suspending cannot just blow out air-flow to bed, the plate face of diversion column and described distribution grid has the direction of a smaller angle to flow, so just avoid the generation of the medium and small channel of bed, water conservancy diversion flat board has also effectively prevented the obstruction of granule to air rising hole, equally distributed air rising hole can be realized being uniformly distributed of gas.
Should have the circular cone of leading distribution hole with the airflow-distribution board of suspension flow deflector, the inlet hole aperture of distribution hole is 15-30mm.
Should have conical flow guiding post with the airflow-distribution board of suspension flow deflector, coning angle is 120-150 °.
Should have guiding device with the airflow-distribution board of suspension flow deflector, the deflector in work can be suspended in the upper end of distribution hole.
Adopted technique scheme, the beneficial effects of the utility model are:
This airflow-distribution board has inverted cone distribution hole, the top of circular cone distribution hole is with the guiding device suspending, guiding device is made up of diversion column and deflector, between deflector and distribution grid with support spring, in the time not having gas to pass into, air flow guiding device relies on gravity to overcome the effect of the elastic force of spring, deflector will cover distribution hole, can prevent like this material from leakage, in the time of work, uprising gas by distribution hole can blow floating guiding device, the guiding device suspending cannot just blow out air-flow to bed, there is the direction of a smaller angle to flow but be with the plate face of described distribution grid, so just avoid the generation of the medium and small channel of bed, water conservancy diversion flat board has also effectively prevented the obstruction of granule to air rising hole, equally distributed air rising hole can be realized being uniformly distributed of gas, this apparatus structure is simple, easily manufactured.
Therefore, the utility model, compared with airflow-distribution board in existing fluid bed, has outstanding advantage and is: (1) can prevent from producing in fluid bed little channel; (2) can avoid air rising hole to stop up; (3) realize being uniformly distributed of gas in fluid bed; (4) structural stability is good, simple in structure, easily manufactured.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
In accompanying drawing 1: 1. distribution grid; 2. spring; 3. diversion column; 4. water conservancy diversion flat board; 5. inverted cone distribution hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.Distribution grid 1 is circular dull and stereotyped, is evenly distributed with inverted cone distribution hole 5 on flat board.Spring 2 is connected to the upper surface of water conservancy diversion dull and stereotyped 4 and distribution grid 1, relies on the elastic force of spring 2 to realize the suspension of guiding device.Diversion column 3 is connected to the lower end of water conservancy diversion flat board 4, diversion column 3 journey cone shapes, and coning angle and inverted cone 5 holes that distribute are identical, and coning angle is 120-150 °, the rising of diversion column 3 and decline and can change the circulation flow of uprising gas.Water conservancy diversion flat board 4 covers the upper end of distribution hole 5, can prevent that the uprising gas in distribution hole 5 from vertically flowing in packing layer.Inverted cone distribution hole 5, the inlet hole aperture of distribution hole is 15-30mm.In the time that fluidized bed drying device stops, air flow guiding device relies on gravity to overcome the effect of the elastic force of spring 2, water conservancy diversion flat board 4 will cover distribution hole, can prevent like this material from leakage, in the time of work, uprising gas by distribution hole 5 can blow floating guiding device, the guiding device suspending cannot just blow out air-flow to bed, the plate face of diversion column 3 and described distribution grid 1 has the direction of a smaller angle to flow, so just avoid the generation of the medium and small channel of bed, water conservancy diversion flat board 4 has also effectively prevented the obstruction of granule to air rising hole, equally distributed air rising hole 5 can be realized being uniformly distributed of gas.
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 (4)
1. with an airflow-distribution board for suspension flow deflector, it is characterized in that: comprise distribution grid, spring, diversion column, water conservancy diversion flat board, inverted cone distribution hole; Described distribution grid is circular dull and stereotyped, is evenly distributed with inverted cone distribution hole on flat board; Described spring is connected to the upper surface of water conservancy diversion flat board and distribution grid, relies on the elastic force of spring to realize the suspension of guiding device; Described diversion column is connected to the lower end of water conservancy diversion flat board, diversion column journey cone shape, and coning angle is identical with inverted cone distribution hole, and coning angle is 120-150 °, and the rising of diversion column and decline can change the circulation flow of uprising gas; Described water conservancy diversion flat board covers the upper end of distribution hole, can prevent that the uprising gas in distribution hole from vertically flowing in packing layer; Inverted cone distribution hole, the inlet hole aperture of distribution hole is 15-30mm.
2. the airflow-distribution board with suspension flow deflector as claimed in claim 1, is characterized in that: the described airflow-distribution board with suspension flow deflector has the circular cone of leading distribution hole, and the inlet hole aperture of distribution hole is 15-30mm.
3. the airflow-distribution board with suspension flow deflector as claimed in claim 1, is characterized in that: the described airflow-distribution board with suspension flow deflector has conical flow guiding post, and coning angle is 120-150 °.
4. the airflow-distribution board with suspension flow deflector as claimed in claim 1, is characterized in that: the described airflow-distribution board with suspension flow deflector has guiding device, and the deflector in work can be suspended in the upper end of distribution hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563782.0U CN203731831U (en) | 2013-09-11 | 2013-09-11 | Air flow distribution plate with suspended flow guide pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563782.0U CN203731831U (en) | 2013-09-11 | 2013-09-11 | Air flow distribution plate with suspended flow guide pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731831U true CN203731831U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320563782.0U Expired - Fee Related CN203731831U (en) | 2013-09-11 | 2013-09-11 | Air flow distribution plate with suspended flow guide pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771282A (en) * | 2015-04-10 | 2015-07-15 | 宁波翼龙医疗设备有限公司 | Air flowing bed |
-
2013
- 2013-09-11 CN CN201320563782.0U patent/CN203731831U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771282A (en) * | 2015-04-10 | 2015-07-15 | 宁波翼龙医疗设备有限公司 | Air flowing bed |
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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: 20140723 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |