CN101773878B - Cyclone separator - Google Patents
Cyclone separator Download PDFInfo
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- CN101773878B CN101773878B CN2009100765869A CN200910076586A CN101773878B CN 101773878 B CN101773878 B CN 101773878B CN 2009100765869 A CN2009100765869 A CN 2009100765869A CN 200910076586 A CN200910076586 A CN 200910076586A CN 101773878 B CN101773878 B CN 101773878B
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Abstract
The invention provides a cyclone separator (1), comprising an inlet section (2), a first cone (3) and a current stabilizing section (7) that are connected in order, wherein the inlet section (2) is provided with at least one tangent inlet (11); a current inlet pipe (8) is connected with the tangent inlet (11); the first cone (3) is a cone downwards shrinking; the current stabilizing section (7) is a slender cylindrical pipe; its tail is equipped with an outlet (12); the separator further comprises a second cone or shrinking body (4) positioned above the inlet section (2) and connected with the same; the second cone or shrinking body (4) upwards shrinks and has a top opening (14); a cylinder body (10a) is installed along the centre axle line of a cyclone, and is hollowed at least from the vicinity of the middle part of the inlet section (2) to the top opening (14); and the cylinder body is closed close to the middle part of the inlet section (2), and the top thereof is opened; and the hollowed side wall of the cylinder close to the closed position is provided with a hole communicated with the top.
Description
Technical field
The present invention relates to a kind of cyclone separator, relate in particular to the cyclone separator that is used for liquid-liquid, solid-liquid, gas-solid separation.
Background technology
Cyclone separator is as a kind of common separation classifying equipoment, and its operation principle is centrifugal sedimentation.After two-phase to be separated or three-phase mixed liquor tangentially enter in the cyclone with certain pressure from the cyclone periphery, produce strong rotational shear turbulent motion.Because coarse granule or heavy phase and fine grained or gently exist granularity difference or density contrast between mutually; its centrifugal force that is subjected to, entad buoyancy, fluid drag force etc. vary in size; be subjected to the centrifugal sedimentation effect; most crude particle or heavy phase are discharged through the cyclone underflow opening; and most of fine grained or light, thereby reach the purpose of separating classification by the overflow pipe discharge.
The application of cyclone separator aspect oily waste water treatment is a kind of liquid-liquid centrifugal separation technology, and it has advantages such as volume is little, in light weight, occupation of land is few.This technology results from Britain Southampton university in nineteen seventies, by M.T.Thew at first the hydrocyclone of development is applied to oil-moisture from, and in the eighties cyclone technique is applied in the liquid of petroleum industry-liquid and separates.Two more than ten years afterwards, hydrocyclones for liquid and liquid separation constantly is improved.
Liquid-liquid hydrocyclone is to rely on the rotation of fluid to produce the purpose that centrifugal force reaches the separation different material.Chinese invention patent 02239957.7 (open day: disclose a kind of oil-water separator on May 21st, 2003), this separator is suitable for the sewage disposal in the oil field mining liquid processing procedure, mainly form by entrance, accelerating sections, segregation section and four revolving bodies of steady flow segment, its flowline is arranged on the center of entrance end, also is provided with two tangential inlets at entrance.After liquid mixture tangentially flows to entrance from inlet, produce rotation at a high speed, because the density difference of weight component in the mixture, under action of centrifugal force, heavy ends will be turned round the motion of wall place to cyclone, and concentrate near wall, in rotary course, to the outlet at bottom motion, finally discharge cyclone gradually.Meanwhile, light component will form wick, and flow to Way in to the motion of cyclone central axis, discharges from overfall, has so just realized the separation of weight component.
Chinese invention patent 00217613.0 early (open day: also disclose a kind of oil-water separator March 14 calendar year 2001), its basic structure is similar to above-mentioned patent, only accelerating sections, segregation section have a plurality of taperings, thereby separating effect may be better.
Oil-moisture from using hydrocyclone, is divided into two kinds of de-oiling type and dehydration-types.Usually use de-oiling type oil-water separator to handle oil-polluted water, promptly oil content is sloughed the oil in the sewage less than the occasion of oil-water mixed liquid 2%.Adopt this moment above-mentioned oil-water separator to handle the lower sewage of oil content, the moisture content of the oil of discharging from flowline may be higher, and when particularly separating the sewage that oil content is big or viscosity is higher, effect is relatively poor relatively.In addition, owing to the various oil-polluted water pressure in porch differ, or often fluctuation is arranged, thereby can not get the wick of stable reverse flow, isolated oil can not successfully flow out from tiny oil spilling mouth, also may cause You Heshui separately to mix again, and this is undesirable.
The eddy flow centrifugation be applied to solid-liquid, gas-solid and gas-liquid five equilibrium from the time also have similar problem, i.e. easily be short-circuited between the import of eddy flow centrifugation and the light phase export, cause separating effect bad.
Summary of the invention
Therefore, task of the present invention is the deficiency that overcomes prior art, proposes a kind of improved cyclone separator, and it is applied widely, working stability, and the separative efficiency height also has the little characteristics of power consumption.
Therefore, the invention provides a kind of cyclone separator, comprise the entrance, first cone and the steady flow segment that connect in turn; Described entrance is provided with at least one tangential inlet, and influent stream pipe and tangential inlet join; This first cone is the cone that shrinks downwards; Described steady flow segment is to be longilineal cylindrical tube, its afterbody is provided with outlet, it is characterized in that, described separator also comprises and is positioned at second cone or the liquid shrinkable that described entrance top joins with it, this cone or liquid shrinkable upwards shrink and have an open top, in addition, central axis along cyclone is provided with a cylinder, this cylinder is at least from being hollow to open top near the middle part of described entrance, and this cylinder is closed and its open-top near the middle part of described entrance, and is provided with the hole that is connected with described top near this cylindrical hollow side wall that is closed the position.
Owing to small-bore overfall is not set near the entrance place, and with bigbore first cone or liquid shrinkable, the feasible light phase materials that is easy to hold reverse flow, and, make the flowing velocity of material reach maximum in open top along first cone or the contraction of liquid shrinkable inner face.Light phase materials can be drawn like this, and be difficult for carrying secretly the heavy phase material.And when light phase medium rose in rotation, part entered the inside of hollow space and innerly upwards flows along it, the drawing of the light phase medium that is beneficial to separate.
According to a further general feature of the present invention, described cylindrical configuration becomes and can rotate around this central axis, and is provided with the helical duct of downward extension at least near the outer wall the described steady flow segment inlet.The purpose that this helical duct is set is that the heavy phase that alleviates adherent rotation produces the backflow disturbance in the porch of steady flow segment, helps separating.This elongated cylinder can be by driven by motor, and rotating speed is at 20-3000 rev/min, and direction of rotation is preferably consistent with the eddy flow direction.
According to the needs that separate operating mode, this cylindrical tube is the also additional power-assisted oar that is provided with in the position on the upper side, middle part of entrance, the middle part that this power-assisted oar is arranged on entrance on the upper side the position and with the below in described hole.Described power-assisted oar radius should not be too big, in case flow disturbance is excessive.The rotating speed of the stirring arm that is driven by cylinder can be set according to the character of medium to be separated, for example when the viscosity of medium to be separated is higher, can adopt lower rotating speed, and the viscosity of medium to be separated can adopt high rotational speed when low.In the present invention, the power-assisted oar is mainly used in to separate and contains bigger oil of viscosity and the big sewage of oil content, the oil that viscosity is bigger under certain speed has the shear shinning characteristic of non-newtonian fluid, acceleration is stirred in rotation through this power-assisted oar, oil viscosity reduces, flowability improves, thereby is easy to quicken to rise along the conical surface.And when the solid-liquid two-phase separated, then do not establish the power-assisted oar.
Advantageously, in cyclone separator according to the present invention, described first cone has accelerating sections and segregation section, and this accelerating sections has different cone angles with segregation section, and the cone angle of preferred accelerating sections is greater than the cone angle of segregation section.This structure makes separator can have better separating effect.
In addition, described first cone has different cone angles with second cone near described entrance place, and wherein first angle of taper is between 10 °～30 °.In above-mentioned cyclone separator, described tangential inlet is two, and two tangential inlets are arranged to make the fluid that enters in this entrance to be at entrance and are rotated counterclockwise.Here, two tangential inlets interval is arranged on the sustained height for 180 °.Be appreciated that the tangential inlet that other number is set also is feasible.
Advantage of the present invention is significantly, and its working range is wide, can be applied to liquid-liquid, solid-liquid, gas-solid two and be separated, and efficient is high and simple in structure, has solved short circuit and backflow perturbed problem, and separating effect improves greatly, and it is low to consume energy simultaneously, and floor space is little.Both can use separately, also can be in parallel or series connection use, can also unite use with existing apparatus, flexible.
Description of drawings
Below, describe embodiments of the invention in conjunction with the accompanying drawings in detail, wherein:
Fig. 1 is the schematic diagram according to an embodiment of cyclone separator of the present invention;
The sectional view of Fig. 2 for cuing open along the A-A line among Fig. 1, amplified;
Fig. 3 is the partial enlarged drawing of structure shown in Figure 2;
Fig. 4 is the schematic diagram according to another embodiment of cyclone separator of the present invention.
The Reference numeral list
The 1-cyclone separator; The 2-entrance; 3-first cone; 4-second cone; The 5-accelerating sections; 6-segregation section; The 7-steady flow segment; 8-influent stream pipe; The 10a-cylinder; 10-power-assisted oar; The 11-tangential inlet; The 12-outlet; The 13-influent stream mouth of pipe; The 14-open top; The 15-discharge pipe.
The specific embodiment
Fig. 1 shows according to one embodiment of present invention, and in this manual, identical reference number is represented identical parts in different embodiment.As seen from Figure 1, totally, comprise the entrance 2, first cone 3 and the steady flow segment 7 that connect in turn with numeral 1 cyclone separator of representing.First cone 3 is the circular cone of shrinking downwards.Steady flow segment 7 is longilineal cylindrical tube, and its afterbody is provided with outlet 12.Entrance 2 is the cylindrical straight pipeline section, and it is provided with at least one tangential inlet 11.For example shown in Fig. 2 and 3, in the present embodiment, tangential inlet 11 has two, and their intervals are arranged on the sustained height for 180 °.Certainly, can expect being provided with the tangential inlet of other number, wherein each tangential inlet 11 also can be provided with at various height.Influent stream pipe 8 is plugged on the tangential inlet 11, and preferably flushes substantially with entrance 2 inwalls.In Fig. 2, an influent stream pipe 8 is omitted, to show tangential inlet 11.Inlet is constructed to be permeable to preferably that at entrance 2 fluid is and is rotated counterclockwise.
The internal diameter of influent stream pipe 8 is reduced at the mouth of pipe 13 places, to increase flow velocity.In general, inlet diameter is more little, and then inlet velocity is big more, and centrifugal force is big more, helps the separation of the different two-phase of density to a certain extent.Medium such as the profit two-phase medium interior owing to cyclone are to separate under the action of centrifugal force that rotation is produced at a high speed, high speed rotary motion must bring the effect of shear stress, the existence of this shear stress can make separated decentralized photo such as oil droplet be broken into littler drop, has strengthened the difficulty of separating.So the liquid inlet speed of hydrocyclone is not to be the bigger the better, entrance velocity should be controlled in certain scope.In the present embodiment, the internal diameter of influent stream pipe 8 is being reduced to about half at the mouth of pipe 13 places, is to allow cyclone separator work under normal pressure in principle, avoids force (forcing) pump work as far as possible, to save the energy.
Again referring to Fig. 1, described separator also comprises and is positioned at second cone or the liquid shrinkable 4 (calling second cone 4 or cone 4 in the following text) that described entrance 2 tops join with it, this cone or liquid shrinkable 4 also are preferably circular cone or liquid shrinkable and upwards shrink, and constitute the light section mutually of collection.Cone 4 can be made up of different cone segments or liquid shrinkable section, has open top 14.
As shown in Figure 1, be provided with longilineal cylinder 10a in the central axis position of cyclone separator 1, this cylinder 10a is from extending between open top 14 and the steady flow segment 7.Cylinder 10a also can rotate by driven by motor, and rotating speed is in 20-3000 rev/min scope.
In the above-described embodiments, cylinder 10a is at least from being hollow to open top 14 near the middle part of described entrance 2, and this cylinder 10a is closed and its open-top near the middle part of described entrance 2, and being provided with the hole (not shown) that is connected with described top near the hollow side wall that is closed this cylinder 10a of position, the light phase medium of rotation enters in the cylindrical tube and along its inwall by described hole and upwards flows.In order to strengthen guide functions, cylinder 10a is provided with the helical duct (not shown) of downward extension at least near near the outer wall the inlet of steady flow segment 7, this helical duct can extend and spreads all over steady flow segment 7 under the necessary situation, select the rotation direction such as the left-handed or dextrorotation of helical duct suitably, make it with the equidirectional rotation of eddy flow direction the time, can produce downward pressure, so as the heavy phase medium flow to steady flow segment 7.
According to the operating mode needs, during for example to water-oil separating, consider that the oil viscosity that oil content of wastewater greatly maybe will separate is bigger, cylinder 10a also is provided with power-assisted oar 10 in the center on the upper side, middle part of entrance 2, and preferably this power-assisted oar 10 is arranged on the below in described hole.Power-assisted oar 10 is a small impeller, is contained in cylinder 10a and goes up by its drive.Described power-assisted oar 10 radiuses should not be too big, in case flow disturbance is excessive, and its velocity of rotation can be adjusted according to the character of medium to be separated.For example when processing contains the sewage of the bigger oil of viscosity, adopt lower rotating speed, and when handling the less two-phase medium of viscosity, can adopt high rotational speed.Power-assisted oar 10 is mainly used in to separate and contains bigger oil of viscosity and the big sewage of oil content.The oil that viscosity is bigger under certain speed has the shear shinning characteristic of non-newtonian fluid, stirs through the rotation of this power-assisted oar 10 and quickens, and oil viscosity reduces, and flowability improves, thereby is easy to quicken to rise along the conical surface.And when carrying out Separation of Solid and Liquid, then this power-assisted oar 10 is used in cancellation.
In the another kind of embodiment of cylinder 10a, this cylinder 10a can be configured to the cylindrical tube of extending between open top 14 and entrance 2 middle parts, this cylindrical tube bottom sealing and be provided with through hole on the tube wall of this cylindrical tube bottom.Like this, the light phase medium of rotation rising enters in the cylindrical tube and along it by described hole and upwards flows.When not establishing power-assisted oar 10, cylinder 10a does not rotate, and at this moment, just much more simply structure.
Certainly, cylinder 10a also may extend into the position of steady flow segment 7 inlet tops, and the helical duct of downward extension is set near the outer wall this position.And the remainder of cylinder 10a also can be a hollow, but is configured to not be connected with the top cylindrical tube.
As shown in Figure 4, in another embodiment of the present invention, first cone 3 is preferably designed to has accelerating sections 5, the segregation section 6 that connects in turn.Wherein the tapering of accelerating sections 5 (for example 10 °-30 °) is far longer than the tapering of segregation section 6, but is shorter in length than the latter.Because the tapering of segregation section 6 reduces with respect to accelerating sections 5, the swirl velocity of descending medium is increased, this structure more helps for example separation of profit two-phase of the different two-phase of density.As required, accelerating sections 5 can be made up of some different tapered sections.
In the separating treatment process, referring to Fig. 1 and Fig. 4, the fluid of blending agent tangentially enters cone from influent stream pipe 8, because fluid has certain pressure and tangentially enter cyclone separator, retrained by the limit wall, and tangential motion becomes and rotatablely moves, and produces vortex flow.When fluid-mixing when entrance flows to first cone 3, be subjected to the effect of the conical surface, cyclonic action is strengthened.
In first cone 3, because liquid at high speed rotation, produce very big centrifugal acceleration, be subjected to centrifugal action, light phase medium (oil phase) moves to the axle center, by bigbore second cone or liquid shrinkable, and the feasible light phase medium that is easy to hold reverse flow, and along the inner face contraction, flowing velocity is in the open top maximum.Oil can be drawn like this, and be difficult for water entrainment.Big phase (water) the Xiang Bianbi motion of density is discharged cyclone by steady flow segment 7 from the bottom.14 places also are connected with discharge pipe 15 in open top.
In addition, above near inlet 11 places, assembled the light phase medium of having separated in a large number, set hole enters in the hollow space of cylinder 10a the light phase medium of a part of separating, and along the mobile rising of inwall, will accumulate near the light phase medium carrying-off the hole rapidly, can prevent that density is less mixes again with the medium to be separated that enters from influent stream pipe 8.
In a word, be essentially the bicone structure, under the enrichment of centrifugal force and bicone, gently descend the form of heavy phase in the formation mutually according to the overall structure of cyclone separator of the present invention; In addition, cyclone separator inside is provided with slender cylinder and the power-assisted oar carries out drainage and stirring, has strengthened inner swirling motion and separating effect; Moreover this cyclone separator is a vertical structure, owing to be subjected to the acceleration of gravity effect, makes weight be easier to separate when the internal mix medium rotates.This cyclone separator not only can be widely used in the sewage disposal of industries such as oil, chemical industry, iron and steel, papermaking, electric power and light industry environmental protection, can also separate two-phase with different densities such as solid-liquid, liquid liquid, gas-solid etc.
Though above at length a plurality of embodiment of the present invention are described to a certain extent, should be appreciated that above description is exemplary and nonrestrictive.Under the situation that does not deviate from the spirit or scope of the present invention, the those of ordinary skill in the present technique field can be made multiple change to these disclosed embodiment.
Claims (9)
1. a cyclone separator (1) comprises the entrance (2), first cone (3) and the steady flow segment (7) that connect in turn; Described entrance (2) is provided with at least one tangential inlet (11), and influent stream pipe (8) joins with tangential inlet (11); This first cone (3) is the cone that shrinks downwards; Described steady flow segment (7) is to be longilineal cylindrical tube, its afterbody is provided with outlet (12), it is characterized in that, described separator also comprises and is positioned at second cone or the liquid shrinkable (4) that described entrance (2) top joins with it, this second cone or liquid shrinkable (4) upwards shrink and have an open top (14), in addition, central axis along this cyclone separator is provided with a cylinder (10a), this cylinder (10a) is neighbouring from the middle part of described entrance (2) at least to be hollow to open top (14), and this cylinder is closed and its open-top near the middle part of described entrance (2), and is provided with the hole that is connected with described top near this cylindrical hollow side wall that is closed the position.
2. cyclone separator according to claim 1 is characterized in that, described cylinder (10a) is configured to and can rotates around this central axis, and is provided with the helical duct of downward extension at least near this cylindrical outer wall described steady flow segment (7) inlet.
3. cyclone separator according to claim 2 is characterized in that, the rotating speed of described cylinder (10a) is at 20～3000 rev/mins.
4. cyclone separator according to claim 2 is characterized in that, power-assisted oar (10) is installed on described cylinder (10a), and this power-assisted oar (10) is positioned at the position on the upper side, middle part of described entrance (2).
5. cyclone separator according to claim 4 is characterized in that, described power-assisted oar (10) is positioned at the below in described hole.
6. according to the described cyclone separator of one of claim 1 to 5, it is characterized in that described first cone (3) has accelerating sections (5) and segregation section (6).
7. cyclone separator according to claim 6 is characterized in that, described accelerating sections (5) has different cone angles with segregation section (6).
8. according to the described cyclone separator of one of claim 1 to 5, it is characterized in that described tangential inlet (11) is two, the fluid that enters by described inlet is at entrance (2) and is rotated counterclockwise.
9. cyclone separator according to claim 8 is characterized in that, described two tangential inlets (11) interval is arranged on the sustained height for 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100765869A CN101773878B (en) | 2009-01-09 | 2009-01-09 | Cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100765869A CN101773878B (en) | 2009-01-09 | 2009-01-09 | Cyclone separator |
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| Publication Number | Publication Date |
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| CN101773878A CN101773878A (en) | 2010-07-14 |
| CN101773878B true CN101773878B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100765869A Expired - Fee Related CN101773878B (en) | 2009-01-09 | 2009-01-09 | Cyclone separator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961902A (en) * | 2012-11-13 | 2013-03-13 | 丹阳市盛力机械有限公司 | Self-eddy-current-type solid and liquid separating device |
| CN103349844A (en) * | 2013-06-28 | 2013-10-16 | 张家港化工机械股份有限公司 | Film distribution device in falling-film evaporator for concentration of caustic soda and caustic soda flakes |
| SE538760C2 (en) * | 2015-03-12 | 2016-11-15 | Valmet Oy | Cyclone separator arrangement and method |
| CN105984915B (en) * | 2015-07-06 | 2019-08-06 | 庞浩辉 | A kind of air force water body separator |
| CN117085866B (en) * | 2023-10-17 | 2024-01-30 | 太原理工大学 | Multifunctional fusiform cyclone |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508863Y (en) * | 2001-07-19 | 2002-09-04 | 石油大学(华东) | Oil-water separation swirler with novel tail pipe and rectification structure |
| CN2520942Y (en) * | 2001-12-27 | 2002-11-20 | 中国石油天然气股份有限公司 | Efficient energy-saving liquid-liquid cyclone separator |
| CN2551314Y (en) * | 2002-06-14 | 2003-05-21 | 中国石化集团河南石油勘探局勘察设计研究院 | Lyclone oil-water separator |
| CN101254489A (en) * | 2008-02-29 | 2008-09-03 | 华东理工大学 | Water cyclone with improved base pipe and overflows structure |
-
2009
- 2009-01-09 CN CN2009100765869A patent/CN101773878B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508863Y (en) * | 2001-07-19 | 2002-09-04 | 石油大学(华东) | Oil-water separation swirler with novel tail pipe and rectification structure |
| CN2520942Y (en) * | 2001-12-27 | 2002-11-20 | 中国石油天然气股份有限公司 | Efficient energy-saving liquid-liquid cyclone separator |
| CN2551314Y (en) * | 2002-06-14 | 2003-05-21 | 中国石化集团河南石油勘探局勘察设计研究院 | Lyclone oil-water separator |
| CN101254489A (en) * | 2008-02-29 | 2008-09-03 | 华东理工大学 | Water cyclone with improved base pipe and overflows structure |
Non-Patent Citations (1)
| Title |
|---|
| JP昭56-38147A 1981.04.13 |
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Denomination of invention: Integral type cyclone separator Effective date of registration: 20110627 Granted publication date: 20110504 Pledgee: Beijing's first investment Company Limited by Guarantee Pledgor: Sino-Gas & Oil Technology, Co.,Ltd. Registration number: 2011990000242 |
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