CN105276961A - Airflow distribution plate with suspension flow guide sheet - Google Patents
Airflow distribution plate with suspension flow guide sheet Download PDFInfo
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- CN105276961A CN105276961A CN201510711212.5A CN201510711212A CN105276961A CN 105276961 A CN105276961 A CN 105276961A CN 201510711212 A CN201510711212 A CN 201510711212A CN 105276961 A CN105276961 A CN 105276961A
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Abstract
The invention relates to an airflow distribution plate with a suspension flow guide sheet. The airflow distribution plate with the suspension flow guide sheet comprises a distribution plate, a spring, a flow guide pillar, a flow guide flat plate and inversely-conical distribution holes, wherein the distribution plate is a circular flat plate; the inversely-conical distribution holes are uniformly distributed on the flat plate; the spring is respectively connected to the upper end faces of the flow guide flat plate and the distribution plate; the suspension of a flow guide device is implemented by the elastic force of the spring; the flow guide pillar is connected with the lower end of the flow guide flat plate; the flow guide pillar is conical; the conical angle of the flow guide pillar is as same as that of the inversely-conical distribution holes and is 120-150 degrees; the flow guide flat plate is covered at the upper ends of the distribution holes and is capable of preventing the rising air in the distribution holes from vertically flowing into a filler layer. When working, the rising air blows and suspends the air guide device; the flow guide pillar and the plate surface of the distribution plate have a small-angle direction flow, so that the generation of small channel flow in a bed layer is avoided; the flow guide flat plate also effectively avoids the blockage of small particles to air rising holes; the uniformly-distributed air rising holes can achieve the uniform distribution of the air. The device is simple in structure and convenient to manufacture.
Description
Technical field
The present invention relates to the air flow method technology in fluid bed, particularly relate to a kind of airflow-distribution board with suspension flow deflector.
Background technology
Among the fluid in fluid bed, a large amount of solid particles being suspended in motion, thus some apparent characteristic particle being had be similar to fluid, fluidization has been applied in the industries such as medicine, minerals separation, food, special 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, greatly, thermal capacity is large, and heat-transfer effect is excellent, and device efficiency is high, applicability is strong for material and air flow contacts area; Material time of staying in device is shorter, and rate of drying is very fast, is particularly suitable for carrying out the advantages such as drying process to some heat sensitive materials.The operation principle of fluidized bed drying device, be allow dried material be blown afloat on the one hand in the gas flow, mix mutually, roll, contact fully with air again on the other hand, the transmission carrying out heat and humidity quickly and efficiently exchanges, thus reaches the object of drying; In gas-solid fluidized bed, the inhomogeneities of certain degree is always there is in gas along the distribution of bed cross section and the contact of gas-solid two-phase, 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, the even fluid distribution degree of fluid bed inside can well be improved, at present, relatively 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 along the directional spreding perpendicular to bed by distribution grid in this, is easy to so at work produce little channel, reduces the heat transfer between material and air-flow, mass-transfer efficiency; The material of smaller particle size can block the air rising hole in distribution grid simultaneously, causes the uneven distribution of gas, reduces the separative efficiency of fluidized bed drying device.Therefore, exploitation one can prevent from producing little channel in fluid bed, and air rising hole can be avoided to block, and the airflow-distribution board realizing gas uniform distribution is very important.
The present invention 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 little channel in fluid bed, and air rising hole can be avoided to block, and realizes being uniformly distributed of gas in fluid bed.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of airflow-distribution board with suspension flow deflector, this airflow-distribution board has inverted cone distribution hole, the top of circular cone distribution hole is with the guiding device suspended, guiding device is made up of diversion column and deflector, with support spring between deflector and distribution grid, when 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, material from leakage can be prevented like this, when operating, guiding device can be blowed floating by the uprising gas of distribution hole, the guiding device suspended makes air-flow just blow out bed, but have the direction of a smaller angle to flow in the plate face with described distribution grid, doing so avoids the generation of the medium and small channel of bed, water conservancy diversion flat board also effectively prevent the blocking of granule to air rising hole, equally distributed air rising hole can realize being uniformly distributed of gas.
In order to solve the problem, the present invention is achieved through technology,
A kind of airflow-distribution board with suspension flow deflector comprises: distribution grid, spring, diversion column, water conservancy diversion are dull and stereotyped, inverted cone distribution hole.Distribution grid is circular dull and stereotyped, flat board is evenly distributed with inverted cone distribution hole; 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 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.When 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, material from leakage can be prevented like this, when operating, guiding device can be blowed floating by the uprising gas of distribution hole, the guiding device suspended makes air-flow just blow out bed, the plate face of diversion column and described distribution grid has the direction of a smaller angle to flow, doing so avoids the generation of the medium and small channel of bed, water conservancy diversion flat board also effectively prevent the blocking of granule to air rising hole, equally distributed air rising hole can realize being uniformly distributed of gas.
Should have with the airflow-distribution board of suspension flow deflector and lead circular cone distribution hole, 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.
Have employed technique scheme, the invention has the beneficial effects as follows:
This airflow-distribution board has inverted cone distribution hole, the top of circular cone distribution hole is with the guiding device suspended, guiding device is made up of diversion column and deflector, with support spring between deflector and distribution grid, when 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, material from leakage can be prevented like this, when operating, guiding device can be blowed floating by the uprising gas of distribution hole, the guiding device suspended makes air-flow just blow out bed, but have the direction of a smaller angle to flow in the plate face with described distribution grid, doing so avoids the generation of the medium and small channel of bed, water conservancy diversion flat board also effectively prevent the blocking of granule to air rising hole, equally distributed air rising hole can realize being uniformly distributed of gas, this apparatus structure is simple, easily manufactured.
Therefore, the present invention, compared with airflow-distribution board in existing fluid bed, has outstanding advantage and is: (1) can prevent from producing little channel in fluid bed; (2) air rising hole can be avoided to block; (3) being uniformly distributed of gas in fluid bed is realized; (4) structural stability is good, and structure is simple, easily manufactured.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In accompanying drawing 1: 1. distribution grid; 2. spring; 3. diversion column; 4. water conservancy diversion is dull and stereotyped; 5. inverted cone distribution hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.Distribution grid 1 is circular dull and stereotyped, flat board is evenly distributed with inverted cone distribution hole 5.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 shape, 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 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.When 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 dull and stereotyped 4 will cover distribution hole, material from leakage can be prevented like this, when operating, guiding device can be blowed floating by the uprising gas of distribution hole 5, the guiding device suspended makes air-flow just blow out bed, the plate face of diversion column 3 and described distribution grid 1 has the direction of a smaller angle to flow, doing so avoids the generation of the medium and small channel of bed, water conservancy diversion flat board 4 also effectively prevent the blocking of granule to air rising hole, equally distributed air rising hole 5 can realize being uniformly distributed of gas.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Therefore, although this description reference the above embodiments are to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
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, flat board is evenly distributed with inverted cone distribution hole; 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 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., as claimed in claim 1 with the airflow-distribution board of suspension flow deflector, it is characterized in that: the described airflow-distribution board with suspension flow deflector has leads circular cone distribution hole, the inlet hole aperture of distribution hole is 15-30mm.
3., as claimed in claim 1 with the airflow-distribution board of suspension flow deflector, it is characterized in that: the described airflow-distribution board with suspension flow deflector has conical flow guiding post, coning angle is 120-150 °.
4., as claimed in claim 1 with the airflow-distribution board of suspension flow deflector, it 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 |
|---|---|---|---|
| CN201510711212.5A CN105276961A (en) | 2015-10-27 | 2015-10-27 | Airflow distribution plate with suspension flow guide sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711212.5A CN105276961A (en) | 2015-10-27 | 2015-10-27 | Airflow distribution plate with suspension flow guide sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276961A true CN105276961A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510711212.5A Pending CN105276961A (en) | 2015-10-27 | 2015-10-27 | Airflow distribution plate with suspension flow guide sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084564A (en) * | 2018-09-19 | 2018-12-25 | 安吉丰美水栀子科技有限公司 | A kind of dryer suitable for the processing of water cape jasmine fruit |
-
2015
- 2015-10-27 CN CN201510711212.5A patent/CN105276961A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084564A (en) * | 2018-09-19 | 2018-12-25 | 安吉丰美水栀子科技有限公司 | A kind of dryer suitable for the processing of water cape jasmine fruit |
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Application publication date: 20160127 |