CN202973798U - Gas distribution device - Google Patents
Gas distribution device Download PDFInfo
- Publication number
- CN202973798U CN202973798U CN 201220654163 CN201220654163U CN202973798U CN 202973798 U CN202973798 U CN 202973798U CN 201220654163 CN201220654163 CN 201220654163 CN 201220654163 U CN201220654163 U CN 201220654163U CN 202973798 U CN202973798 U CN 202973798U
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- CN
- China
- Prior art keywords
- distribution device
- side air
- air outlet
- gas distribution
- plate body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Drying Of Solid Materials (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a gas distribution device. The gas distribution device is characterized by comprising a plate body, wherein side air outlet small holes are evenly distributed in the plate body; the cross section of each side air outlet small hole is triangular; the top angle alpha of each side air outlet small hole is at 60 degrees to 12 degrees; moreover, the top part of each side air outlet small hole is smoothly transitioned through a circular arc R; and the side air outlet small holes in the plate body are arranged in the form of a rectangle, a regular triangle or a radial pattern. The gas distribution device has the positive effects that the gas distribution device is fully optimally designed according to the advantages and defects of the existing direct current type distribution plate and the existing side current type distribution plate so as to have the characteristics of no easy material leakage, no easy blockage, simple structure, convenience in manufacture and cost reduction.
Description
Technical field
The utility model relates to a kind of distribution device in gas-fluid, is applicable to fluidized bed drying equipment.
Background technology
Since the fluidization technology develop, drying is to use one of field the earliest.Utilize the drying equipment of fluidization principle design to be called fluidized bed drying equipment.Fluidized bed drying is a special kind of skill that grew up later on since 1958 in China, at first in the industrial application of salt, has been widely used in the drying of the materials such as chemical fertilizer, chemical industry, agricultural chemicals, medicine material, plastics at present.Distribution grid in fluidized bed drying equipment is the important component that guarantees to have in drying bed good and stable fluidized state.Because gas-solid fluidized-bed has special requirement to equal even stability, therefore that the appropriate design distribution device in gas-fluid just seems is particularly important.Distributing plate structure on the present stage fluidized bed drying equipment mainly uses two classes, i.e. once-through type and side-flow type.Once-through type is a kind of common porous sieve plate, and this kind distribution grid, airflow direction easily produce channel over against bed, and aperture is easily stifled, and leakiness material during parking, thickness of slab are 10 ∽ 20mm, poor-performing.But simple in structure, easy to make.The side-flow type distribution grid refers to evenly settle onboard many a kind of distribution templates that consist of with the blast cap of side opening.The distribution grid of this kind structure is the leakiness material not, also be difficult for stopping up, but structure is too complicated, makes also inconvenient.Seldom adopt on drying equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of distribution device in gas-fluid to make up the deficiency of once-through type and side-flow type distribution grid technology on existing fluidized bed drying equipment.
The technical solution adopted in the utility model is: a kind of distribution device in gas-fluid is characterized in that: comprise plate body, equally distributed side air-out aperture is arranged on plate body.
Optimize, side air-out aperture cross sectional shape is triangle, and apex angles α is 60 °-12 °, and the top is the circular arc R rounding off.
Optimize, the spread pattern of side air-out aperture on plate body is rectangle, equilateral triangle or radial.
Good effect of the present utility model is: the utility model has carried out sufficient optimal design for excellent, the shortcoming of present once-through type and side-flow type distribution grid, make to the utlity model has not leakiness material, also be difficult for stopping up, simple in structure, characteristics easy to make, as to reduce costs.
Description of drawings
Fig. 1 is the structural representation of embodiment of the present utility model;
Fig. 2 is the A-A cross section view of Fig. 1;
Fig. 3 is the B-B cross section view of Fig. 1;
A kind of for the distribution device in gas-fluid on fluidized bed drying equipment, i.e. distributing plate structure.Comprise plate body 1, plate body 1 upper punch has fish scale-shaped side air-out aperture 2.
The specific embodiment:
Embodiment:
In use, air is introduced into pre-distributing chamber, in advance even fluid distribution some.Avoid air-flow to fling distribution grid, and cause local velocity too high, thereby can make distribution grid be issued to the effect of even gas distribution at lower drag.Then air-flow sprays with certain gas speed by the side air-out aperture 2 on plate body 1, make fluidized-bed that a good initiation of fluidization state be arranged, guaranteeing has good gas-solid contact conditions near distribution grid, make all solids particle all enter good fluidized state.And with drying bed in built-in heat exchanger plates or heat exchanger tube carry out heat exchange, thereby reach dry purpose.
Claims (3)
1. a distribution device in gas-fluid, is characterized in that: comprise plate body, equally distributed side air-out aperture is arranged on plate body.
2. a kind of distribution device in gas-fluid as claimed in claim 1, it is characterized in that: side air-out aperture cross sectional shape is triangle, apex angles α is 60 °-12 °, and the top is the circular arc R rounding off.
3. distribution device in gas-fluid, it is characterized in that: the spread pattern of side air-out aperture on plate body is rectangle, equilateral triangle or radial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654163 CN202973798U (en) | 2012-12-03 | 2012-12-03 | Gas distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654163 CN202973798U (en) | 2012-12-03 | 2012-12-03 | Gas distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973798U true CN202973798U (en) | 2013-06-05 |
Family
ID=48514861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220654163 Expired - Lifetime CN202973798U (en) | 2012-12-03 | 2012-12-03 | Gas distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990389A (en) * | 2015-07-23 | 2015-10-21 | 江苏建亚树脂科技有限公司 | Resin product drying net plate |
| CN111282520A (en) * | 2020-02-25 | 2020-06-16 | 天津大学 | Gas distribution plate for vibrating fluidized bed |
-
2012
- 2012-12-03 CN CN 201220654163 patent/CN202973798U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990389A (en) * | 2015-07-23 | 2015-10-21 | 江苏建亚树脂科技有限公司 | Resin product drying net plate |
| CN104990389B (en) * | 2015-07-23 | 2017-03-22 | 江苏建亚树脂科技有限公司 | Resin product drying net plate |
| CN111282520A (en) * | 2020-02-25 | 2020-06-16 | 天津大学 | Gas distribution plate for vibrating fluidized bed |
| CN111282520B (en) * | 2020-02-25 | 2022-05-17 | 天津大学 | Gas distribution plate for vibrating fluidized bed |
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Legal Events
| 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: 20130605 |