CN201684671U - Cyclone separator with grooved wall surface - Google Patents
Cyclone separator with grooved wall surface Download PDFInfo
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- CN201684671U CN201684671U CN201020104745XU CN201020104745U CN201684671U CN 201684671 U CN201684671 U CN 201684671U CN 201020104745X U CN201020104745X U CN 201020104745XU CN 201020104745 U CN201020104745 U CN 201020104745U CN 201684671 U CN201684671 U CN 201684671U
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Abstract
The utility model relates to a cyclone separator grooved wall surface, which is used for the separation of a heterogeneous system, and mainly comprises an ascension pipe (1), a material system inlet (2), a cylinder (3), a cone (4) and a tail pipe (5) which are sequentially arranged from top down; an internal wall (6) is provided with channel (7) according to the flowing direction of medium with larger density of the material system, and the channel (7) forms an angle alpha with the flowing direction of fluid; and the shape of the section of the channel (7) can be a semicircle, an arc, a triangle or other geometrical shapes. The cyclone separator grooved wall surface has the advantages of simple and compact structure, convenient construction, easy structural modification and great improvement of heterogeneous phase separation efficiency.
Description
Technical field
The utility model relates to a kind of machinery that utilizes centrifugal force partition density different medium, especially by having conduit at the separation equipment wall, utilizes the cyclone separator of contained solid particle in centrifugal force divided gas flow that medium produces or the liquid.
Background technology
As everyone knows, a kind of important method of separating heterogeneous system is to adopt so-called cyclone separator (being applicable to gas-solid or the solution-air system) or cyclone (being applicable to liquid-solid, liquid-liquid or solution-air system).Heterogeneous system enters separation equipment with certain speed, fluid media (medium) is subjected to the constraint of how much parts and produces and rotatablely move, because different in the heterogeneous system have density contrast mutually, the consequent centrifugal force that varies in size impels each system to produce separation in geometric space, by suitable method different systems are derived this equipment respectively then, this has just realized the separation of heterogeneous system.
Because simple in structure, advantages such as applicability strong, reliable operation, cyclone separator are widely adopted in producing and living.For example in oil exploitation industry, extensively adopt cyclone that the water-oil in the extraction liquid-sand system is separated.In oil refining and petrochemical industry, cyclone separator is the key equipment of separating cycle catalyst in the fluidized bed reactor system.In the CFBC process of coal, cyclone separator is one of topmost equipment of the decision combustion system thermal efficiency.
Continue to have carried out for many years at the improvement of cyclone separator separation with service behaviour.For example Chinese patent 02226256.3 (a kind of dedusting tubes of cyclone dust collectors) has announced that a kind of wall adds the mode of vertical gusset; hope comes the separation of reinforcing particle by the eddy current of fluid between gusset; but it is well-known; cyclone separator with the moving feature of strong eddy flow will cause serious turbulent flow pulsation horizontal plunderring when having the large-size step; therefore; this particle that has been split into wall can reenter main flow area owing to the turbulent flow pulsation of air-flow, thereby has reduced separative efficiency.Chinese patent 03223047.8 (spiral stream guidance formula cyclone separator) has been announced similar scheme with Chinese patent 97205282.8 (spiral compartment twin-stage separate type efficient fine powder separator), outside wall surface by inner tube wall between inner/outer tube installs spiral baffle additional, forms helical duct.But owing to increasing considerably of wall, the pressure drop of air-flow sharply increases, and, repeatedly change direction owing to flow, will cause more serious turbulent flow pulsation, thereby cause the particle that is thrown toward wall to be entrainmented in the main flow once more.Chinese patent 91228157.X (hydrocyclone) has announced an a kind of form of driving cannelure in cyclone (be generally used for separate solution-airmixture system) bottom awl section.This scheme is conceived to particle changes its spring by the change of wall shape when being thrown toward wall direction.Therefore, this scheme is driven cannelure with axis normal at the bottom particle outlet, and groove is not communicated with.Chinese patent 96226761.9 (strengthening the fine grading hydrocyclone) has been announced a kind of similar scheme, and just the fluting form is the dentation groove.According to the research of cyclone separator as can be known, particle is the main place that particle is separated in the separation of cylindrical section.The particle that raises up from dust collecting opening still will rely on the secondary separation of central segment could the final separative efficiency that guarantees cyclone separator.At the bottom fluting, especially transverse groove does not have direct centrifugation to the particle separation of cyclone separator.Chinese patent 200480022734.4 (cyclone separator) and Chinese patent 86100916 (cyclone separator) have also been announced similar fluting scheme, but slotting position is at center riser outer wall.Chinese patent 86104879 (cyclone separator) and Chinese patent 95205751.4 (eddy flow centrifugal lampblack separator) have been announced and have a kind ofly been slotted at arrival end, and be communicated to the scheme of outlet, but clearly, this scheme is different fully with the scheme content that the present invention is discussed.
There is the annular release district Disengagement zone in typical case's cyclone separator, main separation zone, secondary separation district and fluid accelerating region.By studies show that for many years of inventor, for gas-solid system, under the low granule density, solid particle from import in the shape of a spiral strips move downward, up to dust-exhausting port.There is violent swing in this band, and especially at high traffic condition, significantly the particle band will disappear, and this swing will reduce the separative efficiency of separator.The inventor studies show that, in above-mentioned four Disengagement zone, after solid particle is thrown toward wall, is thrown to main flow area once more owing to bounce, and this carries a large amount of grain flows to riser with regard to causing the radial flow in the annular release district.At the fluid accelerating region, because the precession phenomenon that vortex core exists, the tangential velocity that causes wall is involved in core space with certain ripple frequency swing once more being separated near the particle of wall.
Above-mentioned showing, if adopt certain structure to make the solid particle that is split into wall can in time obtain shielding, so, the separative efficiency of particle will improve greatly, the more important thing is that the cutting particle diameter of particle will significantly reduce.For the reaction-regeneration system of catalytic cracking in the petroleum refining industry, this just means that the load that enters the preceding third level cyclone separator of flue gas turbine expander reduces greatly, even can cancel; For CFBB, this just means that the electric cleaner at rear portion and the load of sack cleaner reduce greatly, even can cancel.The present invention just is being based on this thought, by at grooved wall surface, the particle that is thrown to the wall wall is collected in the conduit, and is moved to ash bucket or dipleg along conduit, realizes the raising of separative efficiency and the reduction of cutting particle diameter.
Although various technology disclose at the diverse location fluting or baffle plate have been set, but, owing to fail to recognize the wall importance that bounce-back causes to particle, eddy flow unstability that wall Lang Ken whirlpool is caused, fine powder secondary separation and the in esse agglomeration of particle at cylindrical section, therefore, various patent and the open source literatures consulted did not propose at the cylindrical shell grooved wall surface and along the method for the big media flow direction of density.Various structure of the prior art can not realize effectively that solid particle in time enters near the low regime of wall, also is difficult to eliminate the solid particle that enters the wall low regime simultaneously and rebounds once more to the problem of main flow area.
Summary of the invention
According to background technology, the purpose of this utility model is to avoid above-mentioned defective, provide a kind of simple in structure, cost is low, efficient is high, can increase substantially separative efficiency on existing conventional cyclone separator basis, reduce pressure drop, reduce the cyclone separator of cutting particle diameter.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of cyclone separator of grooved wall surface, by riser (1), system inlet (2), cylindrical shell (3), cone (4) and tail pipe (5) are formed, wherein: riser (1), system inlet (2), cylindrical shell (3), cone (4) and tail pipe (5) constitute the integral body of cyclone separator from top to bottom according to the order of sequence, press the bigger media flow direction of system density by outer wall (61), on the wall of the inwall (6) that heat-insulation layer (62) and lining (63) constitute conduit (7) is set, conduit (7) is from system inlet (2) beginning, and conduit (7) becomes 0～90 ° of angle with fluid flow direction, conduit (7) area is 0～0.9 with the ratio of the wall that fluid is skimmed over, preferably 0.01～0.2.
The degree of depth and the diameter ratio of described conduit (7) they are 0～0.3, preferably 0.02～0.1.
The width of described conduit (7) on the perpendicular flow direction is 0～0.5, preferably 0.01～0.1.
Described conduit (7) is vertical slot, translot or helicla flute.
The section shape of described conduit (7) is semicircle, arc, triangle or other geometries.
Described conduit (7) is continuous or interrupted.
Described conduit (7) position can be system inlet (2) and the formed annular space of riser (1), and cylindrical shell (3) is located, and tail pipe (5) is located or the dipleg place.
Described cyclone separator comprises anti-streaming, single flow and diffusion type.
Owing to adopted technique scheme, the utility model compared with prior art has following advantage and effect:
1, cyclone separator of the present utility model is compared with common cyclone separator, and under same pressure drop, its separative efficiency improves greatly.
2, the particle of cyclone separator of the present utility model cutting particle diameter can significantly reduce.
3, cyclone separator of the present utility model is when when the dust-exhausting port annex has conduit, and near the dust back-mixing the dust-exhausting port reduces greatly.
4, cyclone separator of the present utility model is when having conduit in the annular release district, and the short-circuit flow of the solid particle that upper dust-ring caused will reduce greatly.
5, cyclone separator of the present utility model is when producing significant vortex core precession, because particle has been collected in the conduit, the speed that the precession vortex core is induced will reduce greatly to the influence of separative efficiency.
6, cyclone separator of the present utility model makes particle will reduce greatly the wearing and tearing of wall.
7, when cyclone separator of the present invention is adopted in the upstream in the multi-stage separation system, do not reducing under the entire system separative efficiency prerequisite, the downstream efficient cyclone in the multi-stage separation system can partly or entirely be cancelled.
Description of drawings
Fig. 1 is the structural representation of traditional cyclone separator;
Fig. 2 is the utility model structure collectivity schematic diagram;
Fig. 3 is the schematic diagram that the utility model wall conduit is made of baffle plate;
Fig. 4 is the schematic diagram of the centrifugation machinery of the utility model wall conduit.
The specific embodiment
Cyclone separator mainly comprises anti-streaming, single flow and diffusion type and centrifugal separator tool.Fig. 1 shows the structural representation of traditional cyclone separator, wherein: the mixture of gas and solid enters in the cyclone separator from system inlet 2 with very high speed, rotation at a high speed in the circular space that cylindrical shell 3 forms, particle is thrown toward wall, form the main separation zone of solid particle, the gas that does not purify fully enters conical section 4 then, gas quickens rotation and moves downward, when gas rotates to dipleg 5 places, gas is turned back and is moved upward, leave cyclone separator from riser 1, solid particle then enters ash bucket from dipleg 5.Like this, gas has just been realized separating with solid particle.
Embodiment one: be used for the cyclone separator in the FCC regenerated device
Illustrate in the regenerator of reaction-regenerator section that the utility model is used for petroleum refining industry's fluid catalytic cracking operating unit by Fig. 2, the cyclone separator of grooved wall surface, mainly by riser 1, system inlet 2, cylindrical shell 3, cone 4 and tail pipe 5 are formed, wherein: riser 1, system inlet 2, cylindrical shell 3, cone 4 and tail pipe 5 constitute the integral body of cyclone separator from top to bottom according to the order of sequence, the media flow direction bigger by system density is provided with conduit 7 on the wall of inwall 6, conduit 7 enters the mouth from system and 2 begins, and conduit 7 becomes 0～90 ° of angle α with fluid flow direction, conduit 7 areas are 0～0.9 with the ratio of the wall that fluid is skimmed over, preferably 0.01～0.2; The degree of depth of conduit 7 and diameter ratio are 0～0.3, preferably 0.02～0.1; The width of conduit 7 on the perpendicular flow direction is 0～0.5, preferably 0.01～0.1.
Wherein, the constructive method of conduit can be welding, riveted joint, turning, milling, planing, grinding, rolling, punching press or pre-formed.
As shown in Figure 2, present embodiment is to slot along the particle flow direction on the wall of cyclone separator, and inwall 6 and conduit 7 are to suppress the conduit that forms along the hand of spiral on wall.
Heterogeneous separation process according to present embodiment is described below.
When in the regenerator of the reaction-regenerator section that is used for the Hydrocarbon Content by Catalytic Cracking Operation unit during with the catalyst of separate expensive, mixture enters from system inlet 2, rotation flows downward, catalyst is got rid of to wall by branch and enters in the conduit 7, along conduit screw current downflow, when fluid during near tail pipe 5, catalyst enters tail pipe 5, and flue gas leaves cyclone separator from the riser at center.
Other knows, inwall 6 is by metal outer wall 61, and nonmetallic materials heat-insulation layer 62 and silicate lining 63 constitute, and lining 63 is by the pin 64 that is welded to metal outer wall 61 moulding that is fixed; Conduit 7 is to form by directly presetting when lining 63 is constructed.
Table 1 provides the particle separation efficient that this kind cyclone separator obtained and the comparing result of grade efficient and traditional cyclone separator in experiment.It can be seen from the table, cyclone separator of the present utility model has improved separative efficiency and has reduced cut diameter.
Table 1
Embodiment two: the cyclone separator at CFBC rear portion
In the circulation fluidized-bed combustion boiler system of coal dust, cyclone separator is wherein most important unit.The efficient operation that depends on cyclone separator just is achieved boiler and does not fire the reduction of loss and the raising of boiler efficiency.When be used for coal follow combustion process the time, entering what revolve the branch separator is flue gas and uncombusted coal dust under the condition of high temperature, the lining 63 that revolves the branch separator will stop the wall of metal outer wall 61 directly to contact high-temperature medium, make its intensity impaired.Mixture enters from system inlet 2, rotation flows downward, coal dust and ash content will be got rid of to wall by branch and enter in the conduit 7 of lining 63 formation, along conduit 7 screw current downflow, when flowing near tail pipe 5, coal dust and ash content enter tail pipe 5, and flue gas after being purified is left cyclone separator from the riser 1 at center.
When being used for circulation fluidized-bed combustion boiler, the shape of cyclone separator may not be a cylindrical shape; When adopting interior lining, its interior shape may cylindrical shape, but according to the technical reason that can be understood, when the conduit among the present invention is placed non-circular inwall, it also is very effective separating heterogeneous system, simultaneously, the wearing and tearing of such channel structure are very little, do not reduce the operational stability and the reliability of original structure.
Embodiment three: cyclone separator
One of visual plant of handling oil field mining liquid is a cyclone separator.Especially for the narrow and small offshore oil platform in space, the cyclone separator of high-efficiency compact is the visual plant that improves the offshore oil platform operating efficiency.Cyclone separator described herein and cyclone separator structure and operation principle are similar.Structure for separating gas-solid heterogeneous system generally is referred to as cyclone separator; And, generally be referred to as cyclone separator or cyclone for the structure of separating liquid-solid or the heterogeneous system of solution-air.
When the cyclone with conduit of the present utility model was used for offshore oil platform, its course of work and embodiment one were similarly, and at this moment, owing to compare with gas phase, liquid phase viscosity is a lot of greatly, and the raising of its separative efficiency of cyclone that has conduit is more obvious.
When be used for coal follow combustion process the time, what enter cyclone separator is flue gas and uncombusted coal dust under the condition of high temperature, the lining 63 of cyclone separator will stop the wall of metal outer wall 61 directly to contact high-temperature medium, make its intensity impaired.Mixture enters from system inlet 2, rotation flows downward, coal dust and ash content will be got rid of to wall by branch and enter in the conduit 7 of lining 63 formation, along conduit 7 screw current downflow, when flowing near tail pipe 5, coal dust and ash content enter tail pipe 5, and flue gas after being purified is left cyclone separator from the riser 1 at center.
Claims (10)
1. the cyclone separator of a grooved wall surface, mainly by riser (1), system inlet (2), cylindrical shell (3), cone (4) and tail pipe (5) are formed, it is characterized in that: riser (1), system inlet (2), cylindrical shell (3), cone (4) and tail pipe (5) constitute the integral body of cyclone separator from top to bottom according to the order of sequence, press the bigger media flow direction of system density by outer wall (61), on the wall of the inwall (6) that heat-insulation layer (62) and lining (63) constitute conduit (7) are set, conduit (7) is from system inlet (2) beginning, and conduit (7) becomes 0～90 ° of angle with fluid flow direction.
2. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: described conduit (7) is vertical slot, translot or helicla flute.
3. the cyclone separator of grooved wall surface according to claim 1 is characterized in that: the section shape of described conduit (7) is semicircle, arc, triangle or other geometries.
4. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: described conduit (7) is continuous or interrupted.
5. the cyclone separator of grooved wall surface according to claim 1 is characterized in that: described conduit (7) position is system inlet (2) and the formed annular space of riser (1).
6. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: described conduit (7) position is located at cylindrical shell (3), tail pipe (5) is located or the dipleg place.
7. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: the degree of depth and the diameter ratio of described conduit (7) they are 0～0.3, preferably 0.02～0.1.
8. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: the width of described conduit (7) on the perpendicular flow direction is 0～0.5, preferably 0.01～0.1.
9. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: the area of described conduit (7) is 0～0.9 with the ratio of the wall that fluid is skimmed over, preferably 0.01～0.2.
10. the cyclone separator of grooved wall surface according to claim 1, it is characterized in that: described cyclone separator comprises anti-streaming, single flow and diffusion type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020104745XU CN201684671U (en) | 2010-01-29 | 2010-01-29 | Cyclone separator with grooved wall surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020104745XU CN201684671U (en) | 2010-01-29 | 2010-01-29 | Cyclone separator with grooved wall surface |
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| CN201684671U true CN201684671U (en) | 2010-12-29 |
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| CN201020104745XU Expired - Fee Related CN201684671U (en) | 2010-01-29 | 2010-01-29 | Cyclone separator with grooved wall surface |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990556A (en) * | 2014-04-29 | 2014-08-20 | 成都市龙泉驿区齐盛机械厂 | Desander |
| CN104307647A (en) * | 2014-09-30 | 2015-01-28 | 苏州速腾电子科技有限公司 | Internal rotation type cyclone separator |
| CN104454507A (en) * | 2014-11-21 | 2015-03-25 | 广德玉龙泵业有限公司 | Pump cover with rough filtration function |
| CN107243419A (en) * | 2016-11-22 | 2017-10-13 | 杭州富阳德拉科技有限公司 | A kind of cyclone separator |
| CN111050921A (en) * | 2017-06-22 | 2020-04-21 | 美卓矿物工业公司 | Cyclone separator |
| CN113117905A (en) * | 2021-03-04 | 2021-07-16 | 中国石油大学(华东) | Decoking device and method of cyclone separator for decoking of top gas of coking tower |
-
2010
- 2010-01-29 CN CN201020104745XU patent/CN201684671U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990556A (en) * | 2014-04-29 | 2014-08-20 | 成都市龙泉驿区齐盛机械厂 | Desander |
| CN104307647A (en) * | 2014-09-30 | 2015-01-28 | 苏州速腾电子科技有限公司 | Internal rotation type cyclone separator |
| CN104454507A (en) * | 2014-11-21 | 2015-03-25 | 广德玉龙泵业有限公司 | Pump cover with rough filtration function |
| CN107243419A (en) * | 2016-11-22 | 2017-10-13 | 杭州富阳德拉科技有限公司 | A kind of cyclone separator |
| CN107243419B (en) * | 2016-11-22 | 2023-09-26 | 询莱流体技术（上海）有限公司 | Cyclone separator |
| CN111050921A (en) * | 2017-06-22 | 2020-04-21 | 美卓矿物工业公司 | Cyclone separator |
| CN113117905A (en) * | 2021-03-04 | 2021-07-16 | 中国石油大学(华东) | Decoking device and method of cyclone separator for decoking of top gas of coking tower |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20140129 |