CN106964502B - A kind of three-phase cyclone separator with helical structure - Google Patents
A kind of three-phase cyclone separator with helical structure Download PDFInfo
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- CN106964502B CN106964502B CN201710185529.9A CN201710185529A CN106964502B CN 106964502 B CN106964502 B CN 106964502B CN 201710185529 A CN201710185529 A CN 201710185529A CN 106964502 B CN106964502 B CN 106964502B
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- cyclone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/107—Cores; Devices for inducing an air-core in hydrocyclones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
Abstract
A kind of three-phase cyclone separator with helical structure.Main purpose is to provide that a kind of compact-sized, equipment volume is small and the three-phase cyclone separator of good separating effect.It is characterized in that：There is the inner cylinder of class frustum structure body to be placed in inside outer cylinder for inside, and keep coaxial with outer cylinder；The internal diameter of the eddy flow section of inner cylinder is more than the internal diameter of water phase outlet section, and the outer wall along eddy flow section bottom end tangentially accesses two internal tangential inlets；In the inner wall of outer cylinder, several external spiral structures circumferentially arranged are fixed with, the external spiral structure is distributed since the lower end of tangential inlet；At the internal face of the small cone section of the inner cylinder, inside spin structure is distributed with；The rotation direction of the external spiral structure be formed by that liquid stream direction of rotation in outer cylinder is identical via tangential inlet, the rotation direction of inside spin structure is oppositely oriented with external spiral structure.
Description
Technical field
It is used to carry out applied in the fields such as oil, chemical industry, ocean engineering, water process and environmental protection the present invention relates to a kind of
The device of multiphase medium separation.
Background technology
Currently, cyclone is more and more extensive in sector applications such as oil, chemical industry and coals.Use gravity settler and three
Phase separation cyclone is the capital equipment that current people detach three-phase mixed liquor, and wherein gravitational settling tank volume is larger,
Inside is usually provided with the components such as weir plate, and structure is complex.In addition, due to being to carry out separating treatment using gravity, lead
Cause the prominent drawbacks such as processing time is long, work is discontinuous and floor space is huge.And for existing three phase separation cyclone,
, when being separated to mixing, there is flow field is unstable and liquid stream reaches the problems such as position and speed far from entrance is too small for it.
So how to design, a kind of separative efficiency is high, occupy little space, flow field is stable, applicable surface is extensive and convenient operating maintenance
Separate hydrocyclone have become the major issue that the related fields such as petrochemical industry are faced.
Cyclone obtains certain application as a kind of separation equipment in China, for three phase separation cyclone
Patent of invention also more attracts attention.Northeast Petroleum University（Former Daqing Petroleum Institute）Successively multinomial patent of invention is applied for, such as
ZL201510366926.7、ZL201410675327.9、ZL201410658938.2、ZL201210345243.X、
ZL201210346843.8, ZL201210196492.7 etc.；Other unit or the patent of universities and colleges' application are such as
ZL201520519735.5、ZL201520520103.0、ZL201420185334.6 、ZL201310582217.3、
ZL201210292638.8 etc..Those above patent is mainly to increase the related device of auxiliary separation to be detached, most
Representative is exactly that spiral stream guidance blade is added in cyclone.But the above is improved, it is special to be still difficult to meet some
It is high to separative efficiency under operating mode, occupy little space and requirement that flow field is stablized.
Invention content
The technical issues of in order to solve to be previously mentioned in background technology, the present invention provide a kind of three-phase cyclone with helical structure
Separator, this kind of three-phase cyclone separator have many outstanding features such as high, the compact-sized and handling ease of separative efficiency.
The technical scheme is that：Three-phase cyclone separator of this kind with helical structure, including an outer cylinder, outer circle
Coaxial line is connected with upper end cover and bottom end cover to the upper/lower terminal of cylinder respectively, and the outer wall along the outer cylinder top tangentially accesses two
A tangential inlet, is unique in that：
The center of the upper end cover is vertically connected with an air guide outer barrel, the lower end of air guide outer barrel be in bell mouth shape gradually
Expand section, air guide outer barrel and upper end cover central axis having the same；
The center of the bottom end cover is vertically connected with an oil phase outlet pipe, around the oil phase outlet pipe, is fixed with one
A class frustum structure body using inner concave arc surface, the bottom end of class frustum structure body are touched with bottom end cover, the top of class frustum structure body
The outlet flush at end and oil phase outlet pipe；Class frustum structure body and oil phase outlet pipe and bottom end cover central shaft having the same
Line；
The three-phase cyclone separator further includes an inner cylinder, and the inner cylinder is from top to bottom respectively by with same central shaft
Water phase outlet section, small cone section, large cone section and the eddy flow section of line are constituted after being sequentially connected with；Water phase outlet section and eddy flow section are straight tube
Section, the internal diameter of eddy flow section are more than the internal diameter of water phase outlet section；Outer wall along eddy flow section bottom end tangentially accesses two inside and tangentially enters
Mouthful；
Inner cylinder is located in outer cylinder；Wherein, water phase outlet section is pierced by air guide outer barrel, and the annular gap formed between the two is
Annular space gaseous phase outlet；The bottom end of eddy flow section is connected on bottom end cover, and class frustum structure body is located in the inner cavity of eddy flow section, class frustum
Structure and inner cylinder central axis having the same；
In the inner wall of outer cylinder, it is fixed with several external spiral structures circumferentially arranged, the external spiral structure
It is distributed since the lower end of tangential inlet；At the internal face of the small cone section of the inner cylinder, inside spin structure is distributed with；It is described
The rotation direction of external spiral structure and identical, the inside spin structure that is formed by liquid stream direction of rotation in outer cylinder via tangential inlet
Rotation direction and external spiral structure it is oppositely oriented.
The present invention has the advantages that：This kind of three phase separation cyclone with helical structure, postposition is overturned by inner cylinder
Inside an outer cylinder, wall is provided with internal tangential inlet outer tube, eddy flow section bottom be provided with class frustum structure body, one
Aspect eliminates the low-pressure area in vortex chamber, reduces entrance and overflow port pressure difference value, and reduces and enter cyclone without dividing
From and directly from overflow port discharge generate short-circuit flow, improve separative efficiency.In addition, double spiral shells of increased cyclone inner/outer tube
Revolving flow passage structure can be with steady flow condition, and has certain rotation of making to act on mixed phase, can improve fluid rotary speed, be oriented to stream
Body flows, and then improves separative efficiency.In addition, this kind of separator can not only realize oil gas water, gas-liquid-solid three-phase separation, can also lead to
It crosses and changes the dimensional parameters of dependency structure to realize two-phase（Liquid-solid, solution-air and liquid-liquid）The two level fine processing of separation, with gas
For liquid separation, after external discrete section carries out initial gas-liquid separation, gas remaining in liquid is detached using inner cylinder
It goes out, to improve separative efficiency.
In conclusion three phase separation cyclone of this kind with helical structure has separative efficiency height, steady flow condition, structure tight
It gathers, the advantages that handling ease, widely applicable and equipment volume are small and convenient operating maintenance, related field can be efficiently solved and existed
The three phase separation equipment cost that is faced in produce reality is high, takes up an area the problems such as big, processing procedure is discontinuous.
Description of the drawings：
Fig. 1 is the overlooking structure diagram of the present invention.
Fig. 2 is A-A cross-sectional views in Fig. 1.
Fig. 3 is the cross-sectional view of the section B-B in Fig. 2.
Fig. 4 is the key dimension mark figure of the present invention.
Fig. 5 is that three phase separation cyclone of the present invention removes the shaft side figure after part outer cylinder, inner cylinder.
1- tangential inlets in figure, 2- annular space gaseous phase outlets, 3- external spiral structures, the inside 4- tangential inlet, 5- bottom end covers,
6- class frustum structure bodies, 7- oil phase outlet pipes, 8- eddy flow sections, 9- large cone sections, 10- inner cylinders, 11- outer cylinders, 12- small cone sections, 13-
Inside spin structure, 14- water phase outlet sections, 15- upper end covers, 16- air guide outer barrels.
Specific implementation mode：
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, three-phase cyclone separator of this kind with helical structure, including an outer cylinder 11, outer cylinder 11
Coaxial line is connected with upper end cover 15 and bottom end cover 5 to upper/lower terminal respectively, and the outer wall along the outer cylinder top tangentially accesses two
Tangential inlet 1, is unique in that：
The center of the upper end cover 15 is vertically connected with an air guide outer barrel 16, and the lower end of air guide outer barrel 16 is in horn mouth
The divergent segment of shape, air guide outer barrel 16 and 15 central axis having the same of upper end cover.
The center of the bottom end cover 5 is vertically connected with an oil phase outlet pipe 7, around the oil phase outlet pipe 7, is fixed with
One class frustum structure body 6 using inner concave arc surface, bottom end and the bottom end cover 5 of class frustum structure body 6 touch, class frustum structure body
6 top and the outlet flush of oil phase outlet pipe 7；Class frustum structure body 6 has phase with oil phase outlet pipe 7 and bottom end cover 5
Same central axis.
The three-phase cyclone separator further includes an inner cylinder 10, and the inner cylinder 10 is from top to bottom respectively by in same
Water phase outlet section 14, small cone section 12, large cone section 9 and the eddy flow section 8 of mandrel line are constituted after being sequentially connected with；14 He of water phase outlet section
Eddy flow section 8 is straight pipe, and the internal diameter of eddy flow section 8 is more than the internal diameter of water phase outlet section 14；Outer wall along 8 bottom end of eddy flow section tangentially connects
Enter two internal tangential inlets 4.
Inner cylinder 10 is located in outer cylinder 11；Wherein, water phase outlet section 14 is pierced by air guide outer barrel 16, the ring formed between the two
Shape gap is annular space gaseous phase outlet 2；The bottom end of eddy flow section 8 is connected on bottom end cover 5, and class frustum structure body 6 is located at eddy flow section 8
In inner cavity, class frustum structure body 6 and 10 central axis having the same of inner cylinder.
In the inner wall of outer cylinder 11, it is fixed with several external spiral structures 3 circumferentially arranged, the external spiral structure
Body 3 is distributed since the lower end of tangential inlet 1；At the internal face of the small cone section 12 of the inner cylinder 10, inside spin knot is distributed with
Structure body 13；The rotation direction of the external spiral structure 3 is formed by liquid stream direction of rotation phase in outer cylinder 11 with via tangential inlet 1
Together, the rotation direction of inside spin structure 13 and external spiral structure 3 is oppositely oriented.
When it is implemented, the rib cross section of spiral structure body can be trapezoidal, oval or round etc., wherein external spiral structure
Body is since entrance lower end, and rotation direction is left-handed, and inside spin structure rotation direction is dextrorotation.
By taking oil gas water three phase blending agent as an example, fluid-mixing is entered by two inlets entrance in cyclone, by blending agent
Linear motion become circular motion, fluid is moved downward in rotation, makes external gas-liquid separation space since inner cylinder exists
Cross-sectional area be gradually reduced.Meanwhile external spiral structure flowing of the fluid on outer cylinder inner wall, the spiral shell that external spiral structure is formed
Eddy flow road has certain water conservancy diversion to fluid and makes rotation effect, and the larger liquid phase of density is thrown toward side under the action of centrifugal field
Wall, and the gas phase then migration near inner tube structure outer wall that density is small, are finally discharged from the annular space gaseous phase outlet at top.It is most of
Liquid and the extremely least a portion of gas that is not detached then entered in inner cylinder by internal tangential inlet, blending agent is bored with class
Platform structure（Busbar is camber line）Eddy flow section inner cavity in rotate, the design of class frustum structure body eliminates at the top of vortex chamber
Low-pressure area had not only reduced the pressure difference value between entrance and oil phase outlet, but also had reduced direct without separation into cyclone
The short-circuit flow that discharge generates is exported from oil phase, improves separative efficiency.The blending agent continuously flowed into below pushes in vortex chamber
Large cone section and small cone section of the blending agent in rotation on inner cylinder move, while the inside spin structure for boring section wall surface can not only carry
The rotary speed of high fluid, but also there is certain guiding function to fluid, so that flow field is more stablized, it is conducive to grease
Separation.The smaller oil droplet of density finally exports discharge to intermediate aggregation in rotation by the oil phase for being placed in bottom, and density compared with
Big water phase is thrown to after side wall and exports discharge by water phase.The final three phase separation for realizing oil gas water.
With reference to Fig. 4, provide when it is implemented, a preferred embodiment of the present invention, in this embodiment.To this kind of separation
The major parameter and size of device have carried out necessary restriction：
As shown, a1And b1It is cyclone outer cylinder entrance equivalent altitude and width respectively； v1It is cyclone outer cylinder
Entrance velocity； a2And b2It is cyclone inner cylinder entrance equivalent altitude and width respectively；v2It is cyclone inner cylinder entrance velocity；l 1For
The radial height of external spiral structure rib, l2It is the radial height of inside spin structure rib, l3It is the height of cyclone small cone section；
P1For the helical pitch of external spiral structure, P2For the helical pitch of inside spin structure；Q is the treating capacity of separator；D1It is cyclone outer circle
Cylinder full diameter, D2It is cyclone inner cylinder full diameter, D3It is cyclone water phase exducer diameter；T is the wall thickness of cyclone；
Then the three-phase cyclone separator needs to meet following condition（1）To condition（8）：
Condition（1）：b1=Q/(2v1×a1), and v1Range between 8 m/s ~ 15m/s；
Condition（2）： b2=Q/(2v2×a2), and v2Range between 4 m/s ~ 10m/s；
Condition（3）：；
Condition（4）：；
Condition（5）：D3=0.5D2；
Condition（6）：0.5D1<D2<0.75D1；
Condition（7）： 0<P1<l0-a1-a2；
Condition（8）：0<P2<l3。
Why carry out defined above, reason is：The cyclone there are two cylinder, the rib of helical structure be in two it
Between, the radial dimension such as fruit rid is long, then not only influences flow field, but also rib can be caused to interfere with cyclone inner cylinder recurring structure,
Cause cyclone can not normal use；The radial dimension of rib is too short, then does not have the effect for making rotation and steady flow condition.Therefore it needs
The radial dimension of helical structure rib is defined.
P decides lift angle, height and number of turns of cyclone helical structure etc., if be not limited to P, the cyclone
Helical structure cyclone inlet may be caused to block, influence the normal use of cyclone, and stream field also has large effect,
Cause the structure cyclone that cannot effectively play a role.
Claims (2)
1. a kind of three-phase cyclone separator with helical structure, including an outer cylinder (11), the upper/lower terminal of outer cylinder (11)
Coaxial line is connected with upper end cover (15) and bottom end cover (5) respectively, and the outer wall along the outer cylinder (11) top tangentially accesses two
Tangential inlet (1), it is characterised in that：
The center of the upper end cover (15) is vertically connected with an air guide outer barrel (16), and the lower end of air guide outer barrel (16) is in loudspeaker
The divergent segment of mouth shape, air guide outer barrel (16) and upper end cover (15) central axis having the same；
The center of the bottom end cover (5) is vertically connected with an oil phase outlet pipe (7), fixed around the oil phase outlet pipe (7)
There are one the class frustum structure body (6) using inner concave arc surface, bottom end and the bottom end cover (5) of class frustum structure body (6) touch, class cone
The outlet flush on the top and oil phase outlet pipe (7) of platform structure (6)；Class frustum structure body (6) and oil phase outlet pipe (7) with
And bottom end cover (5) central axis having the same；
The three-phase cyclone separator further includes an inner cylinder (10), and the inner cylinder (10) is from top to bottom respectively by in same
Water phase outlet section (14), small cone section (12), large cone section (9) and the eddy flow section (8) of mandrel line are constituted after being sequentially connected with；Water phase goes out
Mouth section (14) and eddy flow section (8) are straight pipe, and the internal diameter of eddy flow section (8) is more than the internal diameter of water phase outlet section (14)；Along eddy flow section
(8) outer wall of bottom end tangentially accesses two internal tangential inlets (4)；
Inner cylinder (10) is located in outer cylinder (11)；Wherein, water phase outlet section (14) is pierced by air guide outer barrel (16), is formed between the two
Annular gap be annular space gaseous phase outlet (2)；The bottom end of eddy flow section (8) is connected on bottom end cover (5), class frustum structure body (6)
In the inner cavity of eddy flow section (8), class frustum structure body (6) and inner cylinder (10) central axis having the same；
Inner wall in outer cylinder (11) is fixed with several external spiral structures (3) circumferentially arranged, the external spiral structure
Body (3) is distributed since the lower end of tangential inlet (1)；At the internal face of the small cone section (12) of the inner cylinder (10), it is distributed with
Inside spin structure (13)；The rotation direction of the external spiral structure (3) with via tangential inlet (1) be formed by outer cylinder (11)
Interior liquid stream direction of rotation is identical, and the rotation direction of inside spin structure (13) is oppositely oriented with external spiral structure (3).
2. a kind of three-phase cyclone separator with helical structure according to claim 1, it is characterised in that：
l0It is the height of cyclone outer cylinder, a1And b1It is cyclone outer cylinder entrance equivalent altitude and width respectively；v1It is eddy flow
Device outer cylinder entrance velocity；a2And b2It is cyclone inner cylinder entrance equivalent altitude and width respectively；v2It is cyclone inner cylinder entrance speed
Degree；l1For the radial height of external spiral structure rib, l2It is the radial height of inside spin structure rib, l3It is cyclone small cone section
Height；P1For the helical pitch of external spiral structure, P2For the helical pitch of inside spin structure；Q is the treating capacity of separator；D1It is rotation
Flow device outer cylinder full diameter, D2It is cyclone inner cylinder full diameter, D3It is cyclone water phase exducer diameter；T is the wall of cyclone
It is thick；
Then the three-phase cyclone separator needs to meet following condition (1) to condition (8)：
Condition (1)：b1=Q/ (2v1×a1), and v1Range between 8m/s~15m/s；
Condition (2)：b2=Q/ (2v2×a2), and v2Range between 4m/s~10m/s；
Condition (3)：
Condition (4)：
Condition (5)：D3=0.5D2；
Condition (6)：0.5D1<D2<0.75D1；
Condition (7)：0<P1<l0-a1-a2；
Condition (8)：0<P2<l3。
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| CN201710185529.9A CN106964502B (en) | 2017-03-26 | 2017-03-26 | A kind of three-phase cyclone separator with helical structure |
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| CN201710185529.9A CN106964502B (en) | 2017-03-26 | 2017-03-26 | A kind of three-phase cyclone separator with helical structure |
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| CN106964502B true CN106964502B (en) | 2018-11-02 |
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| CN114025884A (en) * | 2019-06-27 | 2022-02-08 | 巴格知识产权有限公司 | Spiral separation device for fluid purification device |
| CN111606389A (en) * | 2020-05-11 | 2020-09-01 | 江苏威乐环保科技有限公司 | Internal and external compound spiral multistage cyclone desanding filter |
| CN112371360B (en) * | 2020-09-25 | 2022-07-19 | 东北石油大学 | Bent pipe coalescence type three-phase cyclone separator |
| CN112387013B (en) * | 2020-11-17 | 2022-06-03 | 华东理工大学 | Self-adaptive multiphase integrated separation device and method |
| CN113307329B (en) * | 2021-06-03 | 2022-12-13 | 招商局重工（江苏）有限公司 | Drilling platform danger area pretreatment of falling water equipment |
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