CN104907191B - Cyclone separator rotation dust arrester in parallel - Google Patents
Cyclone separator rotation dust arrester in parallel Download PDFInfo
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- CN104907191B CN104907191B CN201510356212.8A CN201510356212A CN104907191B CN 104907191 B CN104907191 B CN 104907191B CN 201510356212 A CN201510356212 A CN 201510356212A CN 104907191 B CN104907191 B CN 104907191B
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- cyclone separator
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- middle cylinder
- dust arrester
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Abstract
A kind of cyclone separator rotation dust arrester in parallel, mainly by being coaxially disposed, each other there is cavity, the central cylinder sealed off each other, middle cylinder, outer cylinder body to constitute, the cavity upper end between the middle cylinder and outer cylinder body is provided with tangential entry；Some small cyclones separators are fixed on the inwall of middle cylinder by the uniform parallel connection of axle of the center of three cylinders.The problem of present invention solves low multiple dust removal efficiency in cyclone cleaner in existing boiler, tolerance skewness.
Description
Technical field
Fine particle can be trapped the present invention relates to a kind of cyclone separator rotation dust arrester in parallel, more particularly to one kind
（PM2.5）Cyclone separator rotation dust arrester in parallel.
Background technology
Atmosphere pollution is to influence one of key factor of China's environment, and wherein dust pollution is the important portion of atmosphere pollution
Point.Research shows, the fine particle in dust（PM2.5）It is easy to heavy metal in enriched air, acidic oxide, organic contamination
Thing, bacterium and virus etc., its harm to health are far above coarseparticulate.Therefore, dust pollution is controlled, is especially controlled
The discharge of fine particle is significant.（Magnify year, the research of Inhalable Particulates in Urban Ambient Air, [J] Shanghai environment section
Learn, 1999,18（4）：154-157）.
Cyclone separator has the low advantage of simple in construction, small investment, operating cost because of it, obtains wide on industrial dedusting
General use.But single dust removal efficiency in cyclone cleaner is low, it is impossible to meet the dust removal requirement of large-sized boiler.Numerous scholar's research
In CFBB, come desulfurization and dedusting by the way of multiple cyclone dust collectors are in parallel.Law of the country army of the Chinese Academy of Sciences, Liao
Build（[1] many cyclone separators of law of the country army recirculating fluidized beds are arranged in parallel the research of cold state experimental [D] the Chinese Academy of Sciences
Raw institute（Engineering Thermophysics research institute）, 2014.；[2] six cyclone separators of Liao Lei are arranged in parallel the experiment of recirculating fluidized bed
Research and numerical simulation [D] Postgraduate School, Chinese Academy of Sciences（Engineering Thermophysics research institute）, 2011）Six whirlwind are have studied to remove
Dirt device is with the situation of furnace chamber H types distribution substantially symmetrical about its central axis.As shown in Figure 3.Test result indicates that, deposited between six cyclone separators
Uneven phenomenon is distributed in gas-solid；Under the same conditions, the cyclone separator pressure drop of diverse location and air quantity have some differences.
Burner hearth homonymy, the pressure drop positioned at middle cyclone separator is less than the pressure drop of the cyclone separator positioned at two ends；It is female close to afterbody
The side cyclone separator pressure drop of pipeline is greater than the pressure drop away from afterbody main pipe road side, and middle position pressure drop size is in
Between the two.In burner hearth 5 m/s of wind speed, the pressure drop deviation of six cyclone separators is 5.6% or so.It can be seen that, six whirlwind point
Layout pattern substantially symmetrical about its central axis is used from device, two middle cyclone separators are unable to reach gas-solid equilibrium and granule density all the time
It is evenly distributed.
In addition studies have found that, in high density multiphase flow, Gas-particle Flows are in two separators during impartial distribution, separator
The pressure loss is maximum；In low-density multiphase flow, when especially density is very low, equalization distribution can make separator pressure loss most
It is small, and unequal it is assigned the larger pressure loss.
The reason for Liao Lei and law of the country army analyze gas-particle two-phase uneven distribution between multiple cyclone separators, mainly there is two
Part：A part is due to that the pulsating nature of aggregative fluidization and the multi-solution of symmetrical structure cause, and another part is due to structure
Non complete symmetry cause.As can be seen here, realize that the gas-particle two-phase of multiple cyclone separators is uniformly distributed to improving dedusting effect
Rate, reduction energy loss are significant.
The content of the invention
The present invention provides a kind of cyclone separator rotation dust arrester in parallel, to solve multiple cyclone dust removals in existing boiler
Device efficiency of dust collection is low, tolerance skewness the problem of.
Therefore, adopting the following technical scheme that：
A kind of cyclone separator rotation dust arrester in parallel, mainly has cavity, mutually it by being coaxially disposed, each other
Between seal off central cylinder, middle cylinder, outer cylinder body composition, the bottom of three cylinder is cone structure and middle cylinder
Cone distal end with outer cylinder body is inside and outside underflow opening, and the inside and outside underflow opening is connected by flange and ash exhauster；The centre
The upper end of cavity is provided with tangential entry between cylinder and outer cylinder body；Several small cyclones separators are using the center of three cylinders as axle
Uniformly it is fixed on the inwall of middle cylinder；The junction of middle cylinder and its underpart cone is connected with bottom plate, outside the bottom plate
Air inlet annular distance is left between the inwall of edge and middle cylinder；The bottom discharge mouthful of several small cyclones separators is fixed on bottom
On plate and and middle cylinder bottom cone insertion；The upper end of several small cyclones separators is provided with air inlet, and this enters
The inner chamber insertion of gas port and middle cylinder；The outlet of several small cyclones separator upper ends is passed through by bend pipe and central cylinder
It is logical；Outlet is provided with the top seal that the bend pipe is placed at the top of outer cylinder body, the top cover.
The section of the winding pipe exit and the angle of horizontal plane are 90oTo 180o。
Efficiency of dust collection that the present invention has considered multiple cyclone dust collectors is low, tolerance and the reason for uneven pressure drop distribution,
By multiple cyclone dust collectors parallel configurations in a big cavity, specially cyclone dust collectors are coaxially disposed, around central shaft
Line rotation arrangement one week, then directly sends into big cavity internal cyclone deduster with pipeline by dusty gas and carries out dedusting.
The contrast of of the invention and multiple cyclone separator parallel connection H types layouts is as shown in Figures 2 and 3.Several rotations of the present invention
Wind separator rotates a circle layout around central shaft, and multiple cyclone separator H type parallel connections are six rotations using furnace chamber as symmetry axis
Wind separator divides equally layout in furnace chamber both sides.In laboratory, of the invention and multiple cyclone separator parallel connection H type layouts are removed
Dirt effect, air quantity and pressure drop distribution uniformity are tested, and test air quantity is 10000m3/h.Test result such as Fig. 4-6 institutes
Show.Fig. 4 is change in pressure drop caused by two kinds of cyclone separator layouts.Figure 4, it is seen that each cyclonic separation in the present invention
The pressure drop size of device is essentially identical, and multiple cyclone separator H type parallel connections cause the pressure drop difference of each cyclone separator larger.
Fig. 5 is air quantity change caused by two kinds of cyclone separator layouts, it can be seen that multiple cyclone separator H types layouts cause each
The gas-solid skewness of cyclone separator, air quantity is variant, and the air quantity difference of each cyclone separator of the present invention is less, realizes
Being uniformly distributed of air quantity.Fig. 6 is the separation efficiency comparative of two kinds of cyclone separator layouts, the cyclone separator point of H types layout
Variant from efficiency, B separative efficiencies are minimum, are that 60%, A is up to 80%, total separative efficiency is 79%；And it is every in the present invention
The efficiency of dust collection of individual cyclone separator is 95% or so, and total efficiency of separation is 95%.Therefore, separative efficiency of the invention is much larger than
H types are laid out, and can efficiently remove the fine particle in dusty gas.
In summary, compared with traditional multiple cyclone separator H types parallel configurations, the present invention can solve air quantity, pressure
The shortcomings of dropping skewness, low separation efficiency, each cyclone separator air quantity for being coaxially laid out is uniform, pressure drop is equal, separation
Efficiency is uniform, can efficiently collect dust in dusty gas.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the schematic diagram of cyclone separator H types parallel configuration in the prior art；
Fig. 4 pressure drop comparison diagrams of cyclone separator H types parallel configuration for the present invention and in the prior art；
Fig. 5 air quantity comparison diagrams of cyclone separator H types parallel configuration for the present invention and in the prior art；
Separation efficiency comparative's figure of Fig. 6 cyclone separator H types parallel configurations for the present invention and in the prior art.
A to F in Fig. 4,5,6 represents cyclone separator of the prior art, and Y1To Y8For each small-sized rotation in the present invention
Wind separator.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1, reference picture 1,2, a kind of cyclone separator rotation dust arrester in parallel, mainly by being coaxially disposed, mutually
Between there is cavity, the central cylinder 14 sealed off each other, middle cylinder 27, outer cylinder body 23 to constitute, three cylinder
Bottom is cone structure, and the cone distal end of middle cylinder 27 and outer cylinder body 23 is inside and outside underflow opening 10,24, the inside and outside bottom
Head piece 10,24 is connected by flange and ash exhauster；Cavity upper end between the middle cylinder 27 and outer cylinder body 23, which is provided with, cuts
To import 22；Several small cyclones separators 28 are uniformly fixed on the inwall of middle cylinder 27 using the center of three cylinders as axle
On；The junction of middle cylinder 27 and its underpart cone is connected with bottom plate 11, the outer rim of the bottom plate 11 and middle cylinder 27 it is interior
Air inlet annular distance 26 is left between wall；The bottom discharge of several small cyclones separators 28 mouthful 9 be fixed on bottom plate 11 and and
The cone insertion of the bottom of middle cylinder 27；The upper end of several small cyclones separators 28 is provided with air inlet 29, the air inlet
The inner chamber insertion of mouth 29 and middle cylinder 27；The outlet of several upper ends of small cyclones separator 28 passes through bend pipe 12 and center
The insertion of cylinder 14；The top cover 13 that the bend pipe 12 is placed at the top of outer cylinder body is sealed, and outlet 15 is provided with the top cover 13.
The section and the angle of horizontal plane that the bend pipe 12 is exported are 90oTo 180oSo that pressure drop is uniform.
The ash exhauster 6 is made up of bed material groove 17, connection valve 19, U-tube 20；Described one end of bed material groove 17 with it is described
Inside and outside underflow opening 10,24 is connected by flange 16, and the other end is connected by flange with U-tube 20, and the other end of U-tube 20 is
Sewage draining exit 21；The bottom of bed material groove 17 is provided with blowoff valve 18.
Embodiment 2, reference picture 1, the bed material groove 17 of the ash exhauster 6 is connected by drainpipe 30 with central cylinder 14,
Solve the problems, such as the laying dust in central cylinder 14.Remaining be the same as Example 1.
The course of work of the present invention：Dust-contained airflow is tangentially entered between outer cylinder body 23 and middle cylinder 27 by tangential entry 22
The upper end of cavity, produces rotating flow, under the action of the centrifugal force, carries out first order separation.The coarse granule or drop isolated will
The cone inwall of the lower end of outer cylinder body 23 is fallen on, is discharged through outer underflow opening 24.The air-flow separated by the first order is through air inlet annular distance 26
Into the bottom of middle cylinder 27, then rotated into respectively simultaneously from the air inlet 29 of some upper ends of cyclone separator 28 each
Cyclone separator 28, produces rotating flow in cyclone separator 28, carries out second level separation.Air-flow after the separation of the second level is through curved
Pipe 12 is discharged to central tube 14, and air-flow is collided in central tube 14, reunited, the another vice-minister of fine particle for making part not trap
Greatly, realize that the third level separates.Blow-off pipe 30 is provided with the bottom of central tube 14, the drop generated after being separated through the third level passes through blowdown
Pipe 30 is discharged to bed material groove 17.Finally, under the suction function that outside applies, the air-flow in central tube 14 can be entered by outlet 15
Discharge duct below.
Claims (4)
1. a kind of cyclone separator rotation dust arrester in parallel, it is characterised in that：Mainly have by being coaxially disposed, each other empty
Chamber, the central cylinder sealed off each other（14）, middle cylinder（27）, outer cylinder body（23）Composition, the bottom of three cylinder
It is cone structure and middle cylinder（27）And outer cylinder body（23）Cone distal end be inside and outside underflow opening（10、24）, this is inside and outside
Underflow opening（10、24）Connected by flange and ash exhauster；The middle cylinder（27）With outer cylinder body（23）Between cavity it is upper
End is provided with tangential entry（22）；Several small cyclones separators（28）Intermediate cylinder is uniformly fixed on using the center of three cylinders as axle
Body（27）Inwall on；Middle cylinder（27）Bottom plate is connected with the junction of its underpart cone（11）, the bottom plate（11）It is outer
Edge and middle cylinder（27）Inwall between leave air inlet annular distance（26）；Several described small cyclones separators（28）Bottom go out
Material mouth（9）It is fixed on bottom plate（11）Upper and and middle cylinder（27）The cone insertion of bottom；Several small cyclones separation
Device（28）Upper end be provided with air inlet（29）, the air inlet（29）And middle cylinder（27）Inner chamber insertion；This several it is small-sized
Cyclone separator（28）The outlet of upper end passes through bend pipe（12）And central cylinder（14）Insertion；The bend pipe（12）It is placed in outer barrel
Top cover at the top of body（13）Sealing, the top cover（13）On be provided with outlet（15）.
2. a kind of cyclone separator rotation dust arrester in parallel according to claim 1, it is characterised in that：The bend pipe
（12）The section of outlet and the angle of horizontal plane are 90oTo 180o。
3. a kind of cyclone separator rotation dust arrester in parallel according to claim 1, it is characterised in that：The ash discharge dress
Put by bed material groove（17）, connection valve（19）, U-tube（20）Composition；The bed material groove（17）One end and the inside and outside underflow opening
（10、24）Pass through flange（16）Connection, the other end passes through connection valve（19）With U-tube（20）Connection, the U-tube（20）It is another
Hold as sewage draining exit（21）；Bed material groove（17）Bottom be provided with blowoff valve（18）.
4. a kind of cyclone separator rotation dust arrester in parallel according to claim 3, it is characterised in that：The ash discharge dress
The bed material groove put（17）Pass through drainpipe（30）And central cylinder（14）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356212.8A CN104907191B (en) | 2015-06-25 | 2015-06-25 | Cyclone separator rotation dust arrester in parallel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510356212.8A CN104907191B (en) | 2015-06-25 | 2015-06-25 | Cyclone separator rotation dust arrester in parallel |
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| CN104907191B true CN104907191B (en) | 2017-08-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106166519A (en) * | 2016-08-30 | 2016-11-30 | 江苏天鹏石化科技股份有限公司 | A kind of continuous discharge gas-solid separator |
| CN109589045B (en) * | 2019-01-29 | 2023-10-20 | 品孚罗特过滤设备（北京）有限公司 | Cyclone body, cyclone separation tree and high-efficiency dust removing device |
| CN114752421A (en) * | 2021-01-08 | 2022-07-15 | 中国石油天然气集团有限公司 | Natural gas pipeline filtering system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2138525Y (en) * | 1992-09-23 | 1993-07-21 | 东北电力学院 | Multi-stage vortex duster |
| GB2360719B (en) * | 2000-03-31 | 2003-04-30 | Notetry Ltd | A domestic vacuum cleaner for separating particles from a fluid flow |
| CN2536307Y (en) * | 2002-04-29 | 2003-02-19 | 张桂才 | Vortex powder separators |
| CN1751800A (en) * | 2005-09-20 | 2006-03-29 | 泰怡凯电器(苏州)有限公司 | Cyclone separator |
| CN202061725U (en) * | 2011-05-12 | 2011-12-07 | 信阳市四通机械制造有限公司 | Cyclone dust collector and composite cyclone dust collector |
| CN205008123U (en) * | 2015-06-25 | 2016-02-03 | 王博 | Rotatory parallelly connected dust collector of cyclone |
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Effective date of registration: 20180427 Address after: 730000 room 315-13, 249 Donggang West Road, Chengguan District, Lanzhou, Gansu Patentee after: Lanzhou cloud Environment Technology Co., Ltd. Address before: 730000 room 2502, 15 building, two division, Lanzhou University, Lanzhou, Gansu. Patentee before: Wang Bo |