CN205627898U - Fluidized bed reactor's gas distributor base - Google Patents
Fluidized bed reactor's gas distributor base Download PDFInfo
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- CN205627898U CN205627898U CN201620309039.6U CN201620309039U CN205627898U CN 205627898 U CN205627898 U CN 205627898U CN 201620309039 U CN201620309039 U CN 201620309039U CN 205627898 U CN205627898 U CN 205627898U
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- air inlet
- blast cap
- bed reactor
- gas distributor
- tongue shape
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Abstract
The utility model belongs to the technical field of petrochemical, fluidizing apparatus, a fluidized bed reactor's gas distributor base is related to, its characterized in that gas distributor base goes up and opens the toper inlet port, and the circumference equipartition is pressed to the toper inlet port, and the ratio of upper and lower bore is 1: 2 1: 4, is the percent opening of distributor 1% 5%, face bonding tongue shape direction hood on the toper inlet port. The utility model discloses a structure can improve air assignment symmetrical nature, eliminate the blind area, improves fluidization quality.
Description
Technical field
This utility model belongs to petrochemical industry, fluidizing apparatus technical field, relates to the gas distribution grid of a kind of fluidized-bed reactor.
Background technology
Gas distributor is one of key member within gas-solid fluidized bed reactor, Gas-particle Flows, mass-and heat-transfer and the course of reaction of whole fluid bed there is important impact, therefore, require gas distribution grid can uniform gas distribution, ensure gas-solid contact good, there is less pressure drop simultaneously, and be not easily blocked.
In prior art, mainly there are two kinds of distributors, one is tubular gas distributor, is made up of supervisor, arm, branched pipe, nozzle etc., and gas initially enters supervisor, numerous branched pipes is entered again through arm, nozzle on branched pipe sprays downwards, overturns and upwards enters fluid bed through branched pipe gap, and the subject matter that this distributor exists is: distributor branched pipe gap gas distribution effect is not ideal enough, there is obvious Biased flow phenomenon, non-homogeneous gas distribution in causing fluid bed；There is violent disturbance, fluidisation instability in fluid bed bottom, fluid bed entirety fluidisation is of low quality, and the intrinsic differential pressure distribution of branched pipe result in that nozzle gas distribution is uneven and the series of problems such as abrasion.
Another kind of distributor is a porous plate, a bubble-cap type blast cap is had above each aperture, a number of aperture is had on blast cap four perisporium, air-flow aperture on orifice plate enters bubble-cap, enter in reactor by the aperture on bubble-cap four perisporium after baffling, primarily serving the purpose of baffling and crushing gaseous stream of bubble-cap, prevents granule from falling under plate simultaneously.In actual production, this distribution grid often has dead hole, dead band phenomenon to occur, and have impact on reaction yield.
Summary of the invention
The purpose of this utility model is to provide a kind of fluidized bed gas distribution grid that improves, raising uniform air distribution, dead zone-eliminating, improves fluidization quality.
Main technical schemes of the present utility model: the gas distribution grid of fluidized-bed reactor, it is characterized in that on gas distribution grid, opening taper air inlet, taper air inlet is the most uniform, the ratio of bore is 1:2-1:4 up and down, the percent opening of distributor is 1%-5%, welds tongue shape and guide blast cap above taper air inlet.
Further, tongue shape guides four sides of blast cap has three side sealing to close, recording quantity；Before and after blast cap, the ratio of height is 3:1-2:1.
Further, the center of center and afterbody that tongue shape guides blast cap opening is on the circumference at air inlet place, so, defines gas cyclone on distribution grid, it is to avoid the unordered flowing of gas, restrained effectively the generation in dead band.
Structure of the present utility model, can improve uniform air distribution, dead zone-eliminating, improves fluidization quality.
Accompanying drawing explanation
Fig. 1 is embodiment distribution grid plan structure schematic diagram.
Fig. 2 is embodiment distribution grid sectional structure schematic diagram.
Fig. 3 is the generalized section of taper air inlet in embodiment.
Fig. 4 is the schematic top plan view guiding blast cap in embodiment.
Fig. 5 is the generalized section guiding blast cap in embodiment.
In figure, 1-distribution grid, 2-air inlet, 3-blast cap.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Embodiment: the present embodiment gas distribution grid is as shown in figure 1 and 2, it is mainly characterized by opening taper air inlet on gas distribution grid, and taper air inlet is the most uniform, and the ratio of upper and lower bore is 1:2-1:4, the percent opening of distributor is 1%-5%, welds tongue shape and guide blast cap above taper air inlet；Tongue shape guides four sides of blast cap has three side sealing to close, recording quantity；Before and after blast cap, the ratio of height is 3:1-2:1；The center of center and afterbody that tongue shape guides blast cap opening is on the circumference at air inlet place.
As shown in figures 3-5, in embodiment, taper air inlet lower port diameter D1 is 36mm, and back cut diameter D2 is 12mm；Blast cap opening surface height H1 is 15mm, and wide L1 is 30mm, and afterbody width L2 is 10mm, and long L3 is 20mm, and tongue shape shade radius R1 is 16, and blast cap afterbody is 60 with the angle of distribution grid, and bottom blast cap, overall length L4 is 27mm.
Claims (1)
1. the gas distribution grid of a fluidized-bed reactor, it is characterized in that opening taper air inlet on gas distribution grid, taper air inlet is the most uniform, and the ratio of upper and lower bore is 1:2-1:4, the percent opening of distributor is 1%-5%, welds tongue shape and guide blast cap above taper air inlet；Described tongue shape guides four sides of blast cap has three side sealing to close, recording quantity, and the center of opening and the center of afterbody are on the circumference at taper air inlet place；Before and after tongue shape guiding blast cap, the ratio of height is 3:1-2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620309039.6U CN205627898U (en) | 2016-04-14 | 2016-04-14 | Fluidized bed reactor's gas distributor base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620309039.6U CN205627898U (en) | 2016-04-14 | 2016-04-14 | Fluidized bed reactor's gas distributor base |
Publications (1)
| Publication Number | Publication Date |
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| CN205627898U true CN205627898U (en) | 2016-10-12 |
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Family Applications (1)
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| CN201620309039.6U Active CN205627898U (en) | 2016-04-14 | 2016-04-14 | Fluidized bed reactor's gas distributor base |
Country Status (1)
| Country | Link |
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| CN (1) | CN205627898U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126912A (en) * | 2017-06-06 | 2017-09-05 | 淮阴工学院 | Gas distribution grid for organosilicon fluidized bed reactor |
| CN109317060A (en) * | 2018-12-06 | 2019-02-12 | 江苏新河农用化工有限公司 | A kind of fluidized bed distributor for Bravo production |
| CN115849303A (en) * | 2022-12-21 | 2023-03-28 | 大连理工大学 | Hydrogen production device by utilizing methane and steam reaction |
-
2016
- 2016-04-14 CN CN201620309039.6U patent/CN205627898U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126912A (en) * | 2017-06-06 | 2017-09-05 | 淮阴工学院 | Gas distribution grid for organosilicon fluidized bed reactor |
| CN109317060A (en) * | 2018-12-06 | 2019-02-12 | 江苏新河农用化工有限公司 | A kind of fluidized bed distributor for Bravo production |
| CN115849303A (en) * | 2022-12-21 | 2023-03-28 | 大连理工大学 | Hydrogen production device by utilizing methane and steam reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee after: China Petroleum & Chemical Corp. Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee before: China Petroleum & Chemical Corp. Patentee before: Nanhua Group Research Institute |
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| CP01 | Change in the name or title of a patent holder |