CN204710582U - A kind of helical type cyclone separator of improvement - Google Patents
A kind of helical type cyclone separator of improvement Download PDFInfo
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- CN204710582U CN204710582U CN201520264659.8U CN201520264659U CN204710582U CN 204710582 U CN204710582 U CN 204710582U CN 201520264659 U CN201520264659 U CN 201520264659U CN 204710582 U CN204710582 U CN 204710582U
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- cyclone separator
- cylindrical shell
- type cyclone
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Abstract
The utility model belongs to gas-solid, gas-liquid heterogeneous separation field, discloses a kind of helical type cyclone separator of improvement, it is characterized in that: the blast pipe at center inserts in the cylindrical shell of helical type cyclone separator, helical duct wall extends vertically downward gradually.The utility model can reduce " short-circuit flow " and " lateral expansion loss " of air-flow in prior art helical type cyclone separator, significantly improve separative efficiency when separator pressure-drop does not increase substantially and do not increase the manufacture difficulty of separator device, there is the advantages such as pressure drop is low, efficiency is high, structure is simple, reduced investment.
Description
Technical field
The present invention relates to the separation technology field of separate solid particles, drop or liquid-solid mixture from gas, be specially a kind of helical type cyclone separator for separate solid particles from gas, drop or liquid-solid mixture.
Background technology
Cyclone separator is that a kind of centrifugal force utilizing flow rotation to produce is by the equipment of solid particle, drop separation in air-flow, because it is simple and compact for structure, simple and convenient operation and maintenance, separative efficiency comparatively advantages of higher low without movable member, cost, be usually the preferred unit of many industrial process fields high temperature and high pressure gas dedusting purification.Rectangle tangential admission mouth, cylindrical tube add cone combination to cut stream counter-rotative type cyclone separator be the most common and apply maximum a kind of cyclone separators.In the cyclone separator of this pattern; dust-contained airflow tangentially enters in cyclone separator cylindrical shell; formed outside from top to bottom with center double-deck vortex motion from bottom to top, solid particle or drop are thrown toward separator limit wall, and clean air-flow is discharged from the blast pipe of separator top center.But the secondary or local flow such as be also attached with " lateral expansion ", the top circulation of inlet gas on the Mainstream Packs of this inside and outside double-deck vortex motion, blast pipe end opening " short-circuit flow ", vortex core " are wagged the tail ", these are secondary or local flow is often unfavorable to the separation and collection efficiency improving particle, also increase the pressure loss of cyclone separator simultaneously.
For solving the problem, reduce and traditional cut the caused problem that efficiency separator is low and pressure drop is high such as " short-circuit flow ", " lateral expansion loss " that streaming cyclone separator structure exists, people have carried out Transform Type design from different perspectives, develop the cyclone separator of multiple different structure type, as diffusion type, long cone type, tornado, bypass type, tilting screw top formula, whirlwind minor etc., they differ from one another, and effect is different.Some researchers are based on the analysis of tradition being cut to streaming cyclone separator interior flow field, proposition should by the streamline shape design cyclone separator of cyclone separator interior flow field, Membrane Separator Cylinder for CFB Boiler wall to be designed to etc. enter helical type and extend to helical body centre exhaust chamber, form equidistant ring reducing runner, to make full use of the vortex motion being conducive to particle separation, move radially distance between the particle that shortening will be separated to trapping wall, increase the separation and collection efficiency of particle and reduce resistance." Wuhan Polytechnical Univ's journal " the 14th volume the 1st phase in 1992,13-17 page reports " novel multi-layer formula cyclone dust collectors " (i.e. continuous helical type cyclone separator) and corresponding theory analysis and separating property test determination of developing according to above-mentioned conception, result shows, this helical type cyclone separator has the obvious advantage that droop loss is little, efficiency of dust collection is higher, but the shortcomings such as the equipment steel consumption that also there is processed in units air quantity is large, volume is large, therefore, its structure also needs further Optimal improvements.Chinese patent ZL95233971.4 discloses and design identical above, a kind of spiral vortex dust collector, and its cylindrical shell is rolled into by Archimedes spiral shape, and exhaust core pipe does not insert helical inner barrel.Phase " Chinese building material " nineteen ninety-five the 8th, 37-40 page and " cement " the 5th phase in 1996,20-22 page there was reported half type approval test and analysis that this helical type cyclone separator carries out in cement plant.In recent years further research shows, the pressure drop of this helical type cyclone separator significantly cuts streaming cyclone separator lower than traditional, but not ideal enough to the separation and collection efficiency of less than 10 microns fine dusts, still requires further study improvement.
Summary of the invention
The object of the invention is to the deficiency of the helical type cyclone separator for prior art, a kind of helical type cyclone separator of improvement is provided, make when separator pressure-drop changes little separative efficiency obtain to significantly improve, improve the combination property of helical type cyclone separator significantly.
Technical scheme of the present invention is: a kind of helical type cyclone separator, forms by having the helical cylindrical shell of helical passage, cone and central row tracheae.Air inlet is tangentially connected with helical cylindrical shell along helical cylindrical shell, and by tangential admission mouth, helical cylindrical shell is rolled into by Archimedes spiral shape etc. with entering distance, and the width of helical passage is identical with air scoop width; Helical body centre is equipped with blast pipe, the axis of blast pipe and lower cylinder axis coaxle, and the pipeline of top board and outside that helical cylindrical shell is stretched out in the upper end of blast pipe is connected, and helical inner barrel is inserted in the lower end of blast pipe; Termination cone under cylindrical shell, termination lock gas removal device under cone.
Helical type cyclone separator of the present invention, is characterized in that: central row tracheae inserts helical inner barrel, and insertion depth is the air inlet height of 0.2 ~ 2.2 times, is preferably 1.0 times of air inlet height.
Helical type cyclone separator of the present invention, it is characterized in that: the helical conduit wall height in helical cylindrical shell is from air inlet madial wall, with the reduction of the radius of spin gradually to downward-extension, namely the wall the closer to body centre helical passage is higher, the end of helical passage is near body centre, its helical wall face height is maximum, is 1.0 ~ 2.0 times of air inlet height.
Compared with the helical type cyclone separator of prior art, advantage of the present invention is: 1) blast pipe inserts helical inner barrel, strengthen the constraint of blast pipe to swirling eddy in helical cylindrical shell, blast pipe end " short-circuit flow " can be reduced, improve the separative efficiency of separator; 2) helical conduit wall reduces to extend lengthening gradually downwards with the radius of spin, increase the stop of air-flow to the Radial Flow of body centre, the pressure loss that air-flow " lateral expansion " brings can be reduced on the one hand, " short-circuit flow " amount that helical duct lower end is caused by radial velocity and axial velocity can be reduced on the other hand, increase the arresting efficiency to particle, reduce resistance.
The present invention is by simply improving the blast pipe of existing helical type cyclone separator and helical duct, do not increase its manufacture difficulty, the efficiency of helical type cyclone separator is obtained obviously promote, obtain a kind of combination property good helical type cyclone separator.
Accompanying drawing explanation
The helical type cyclone separator vertical section structural representation of Fig. 1 prior art.
The helical type cyclone separator helical channel cross-section sectional view of Fig. 2 prior art.
The helical type cyclone separator vertical section structural representation that Fig. 3 the present invention improves.
The helical type cyclone separator helical channel cross-section sectional view that Fig. 4 the present invention improves.
In Fig. 1 ~ 4,1-tangential admission mouth, 2-blast pipe, 3-helical passage, 4-helical conduit wall, 5-helical cylindrical shell, 6-helical passage extension, 7-cylindrical shell, 8-cone, 9-discharge flapper.
Fig. 5 is the efficiency test test comparison of the helical type cyclone separator of the present invention and prior art.
Fig. 6 is the pressure drop-efficiency test contrast of the helical type cyclone separator of the present invention and prior art.
Detailed description of the invention
Below in conjunction with accompanying drawing 3 and 4, the present invention is further detailed explanation.
With reference to Fig. 3, helical type cyclone separator is made up of blast pipe 2, helical cylindrical shell 5, cylindrical shell 7 and cone 8.The equidistant helical passage 3 that described helical cylindrical shell 5 is surrounded by helical conduit wall 4 and helical passage extension 6 form.Described air inlet 1 is tangentially communicated with helical cylindrical shell 5, and air inlet port dimensions is consistent with the inlet size of helical passage 3.Described helical passage extension 6 starts to extend gradually downwards from air inlet 1 madial wall, and downward height is the air inlet height of 0 ~ 1 times, can extend to continuously in cylindrical shell 7.The upper end of described blast pipe 2 is stretched out outside helical cylindrical shell 5, and lower end is inserted in helical cylindrical shell 5, and insertion depth is 0.2 ~ 2.2 times of air inlet 1 height.
Dust-contained airflow tangentially enters helical cylindrical shell 5 with certain speed from air inlet 1, turns to helical cylindrical shell 5 central motion along equidistant helical passage 3 inward turning surrounded by helical conduit wall 4.Owing to being subject to the constraint of the blast pipe 2 of channel wall and insertion separator interior, air-flow does downward screw, and then forms rotational flow at separator interior, and the pressure of limit wall is high, and centre is then low-pressure area.Due to the density contrast existed between gas grain, particle is thrown toward helical channel wall, and then particle can glide along wall along with the air-flow under screw, enters cone 8 through cylindrical shell 7, and then is discharged by dust discharge flapper 9.When part air-flow arrives bottom helical passage 3, the vacuum suction effect because of body centre low-pressure area can flow to helical type cyclone separator center, then continues to rotate up to enter blast pipe 2 drain separator.Blast pipe 2 inserts the constraint that inner barrel adds swirling eddy, strengthens it and rotates along helical passage 3, prevents it from entering helical cylindrical shell 5 center too early, reduces " short-circuit flow ".Helical duct extension adds the stop to the air-flow radial centripetal flowing caused in helical duct lower end by radial velocity and axial velocity, thus reduces air-flow " lateral expansion loss " and " short-circuit flow ", improves the separation and collection efficiency to particle.Adopt meso-position radius to be the separating property contrast test that the 800 order talcum powder of 9 μm carry out the helical type cyclone separator of the present invention and prior art under the condition of normal temperature and pressure, the helical type cyclone separator die body of contrast test is of a size of: helical starting point radius is r
0=330mm, spiral equation is r=330-11.15a, mm, and in formula, a is radian value corresponding to channel outer wall face, helical duct section start a=0; Under contrast operating mode, the blast pipe insertion depth that the present invention adopts is 1.0 times of air inlet height, the maximum downward-extension length of helical conduit wall is 125mm.Comparing result shows, the helical type the Effiency of whirlwind Separator that the present invention improves than identical enter under implication speed condition the helical type Cyclone efficiency of prior art high by about 6%; Under same pressure drop condition, the helical type Cyclone efficiency that the present invention improves is also high by about 5% than the helical type Cyclone efficiency of prior art.Therefore, the helical type cyclone separator that the present invention improves has higher separative efficiency than the helical type cyclone separator of prior art.
In this description, the technology of the present invention describes with reference to its specific example.But still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (3)
1. the helical type cyclone separator improved, form by having the helical cylindrical shell of helical passage, cylindrical shell, cone and central row tracheae, air inlet is tangentially connected with helical cylindrical shell along helical cylindrical shell, helical cylindrical shell enters apart from being rolled into by Archimedes spiral shape etc., the width of helical passage is identical with air scoop width, and helical body centre is equipped with blast pipe, helical cylindrical shell lower end extend neck body, termination cone under cylindrical shell, termination lock gas removal device under cone.
2. the helical type cyclone separator improved as claimed in claim 1, is characterized in that, central row tracheae inserts helical inner barrel, and insertion depth is the air inlet height of 0.2 ~ 2.2 times.
3. the helical type cyclone separator improved as claimed in claim 1, it is characterized in that, from air inlet madial wall, the height of helical conduit wall with the reduction of helical channel radius gradually to downward-extension, the helical conduit wall height nearest from helical body centre is maximum, is 1.0 ~ 2.0 times of air inlet height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520264659.8U CN204710582U (en) | 2015-04-29 | 2015-04-29 | A kind of helical type cyclone separator of improvement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520264659.8U CN204710582U (en) | 2015-04-29 | 2015-04-29 | A kind of helical type cyclone separator of improvement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444162A (en) * | 2015-12-31 | 2016-03-30 | 华能国际电力股份有限公司 | Circulating fluidized bed boiler cyclone separator with center cylinder with inclined air inlet cross section |
| CN107029904A (en) * | 2017-05-16 | 2017-08-11 | 镇江宝塑高分子材料有限公司 | A kind of 90 DEG C of thermoplasticity TPU elastomer material preparation cyclone separators |
| CN107930870A (en) * | 2017-12-18 | 2018-04-20 | 江苏鑫华能环保工程股份有限公司 | Whirlwind cyclone and cyclone with centrifugal guide vane |
| CN108686839A (en) * | 2018-05-29 | 2018-10-23 | 贵州富燃环保科技有限公司 | A kind of high-efficient purification cyclone separator |
| CN109909079A (en) * | 2019-04-15 | 2019-06-21 | 青岛科技大学 | A kind of multilayer flow guiding type cyclone separator |
-
2015
- 2015-04-29 CN CN201520264659.8U patent/CN204710582U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444162A (en) * | 2015-12-31 | 2016-03-30 | 华能国际电力股份有限公司 | Circulating fluidized bed boiler cyclone separator with center cylinder with inclined air inlet cross section |
| CN105444162B (en) * | 2015-12-31 | 2017-10-27 | 华能国际电力股份有限公司 | A kind of inclined cyclone separator of circulating fluidized bed boiler of central tube air inlet section |
| CN107029904A (en) * | 2017-05-16 | 2017-08-11 | 镇江宝塑高分子材料有限公司 | A kind of 90 DEG C of thermoplasticity TPU elastomer material preparation cyclone separators |
| CN107930870A (en) * | 2017-12-18 | 2018-04-20 | 江苏鑫华能环保工程股份有限公司 | Whirlwind cyclone and cyclone with centrifugal guide vane |
| CN107930870B (en) * | 2017-12-18 | 2024-04-16 | 江苏鑫华能环保工程股份有限公司 | Cyclone with centrifugal guide vane and cyclone |
| CN108686839A (en) * | 2018-05-29 | 2018-10-23 | 贵州富燃环保科技有限公司 | A kind of high-efficient purification cyclone separator |
| CN108686839B (en) * | 2018-05-29 | 2023-10-31 | 贵州富燃环保科技有限公司 | High-efficient cyclone that purifies |
| CN109909079A (en) * | 2019-04-15 | 2019-06-21 | 青岛科技大学 | A kind of multilayer flow guiding type cyclone separator |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20200429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |