CN102251766A - Novel pipeline type flow deflector oil-water separator rotation starting device - Google Patents
Novel pipeline type flow deflector oil-water separator rotation starting device Download PDFInfo
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- CN102251766A CN102251766A CN2011101903191A CN201110190319A CN102251766A CN 102251766 A CN102251766 A CN 102251766A CN 2011101903191 A CN2011101903191 A CN 2011101903191A CN 201110190319 A CN201110190319 A CN 201110190319A CN 102251766 A CN102251766 A CN 102251766A
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Abstract
The invention discloses a novel pipeline type flow deflector oil-water separator rotation starting device, and the device provided by the invention comprises more than two flow deflectors capable of being fixedly and obliquely mounted in a pipeline, wherein the flow deflectors are uniformly distributed along the circumferential direction of the pipeline and sequentially superposed in the axial direction of the pipeline; and when an oil and water mixed fluid flows by the flow deflectors, a swirling flow field in central symmetry is formed, thus oil and water are further centrifugally separated. The novel rotation-starting device has the following effects: when the oil and the water enter into the rotation-starting device equipped with the oil-water separator in a certain proportion, the oil and the water meet the flow deflectors, as the flow deflectors are circumferentially oblique in the same direction, the flow of the part of the fluid under flow deflection of each flow deflector along the annular direction is bascially same, thus a consistent vortex effect can be achieved and the stronger vortex can be formed; and simultaneously, the flow deflectors which are mounted axially can be used for reducing the radial motion distance of oil drops and enabling the oil drops to move to an axle center faster. Therefore, the better oil-water separation effect can be played.
Description
Technical field
The present invention relates to a kind of in novel oil-water cyclone separator, rising and revolve the device that forms eddy flow field, particularly relate to a kind of oil water separator that is applied in the underground oil-water piece-rate system and play cyclone.
Background technology
Along with the prolongation of oil field development time, aquifer yield continues to increase, and makes cost of production increase, in order to reduce cost of winning, adopt downhole separation system with moisture from and on the spot reinjection into reservoir become common recognition.
It mainly is gravity and centrifugal two kinds that current underground oil-water separates the separation principle that is adopted, patent publication No. for example: CN 101025080A, many glasss of equal flow type downhole separation systems are realized the method that the high water-cut well same-well injection is adopted, and it utilizes gravity principle to carry out natural subsidence separation profit.Publication number: CN2931780, a kind of downhole separation system, description be to adopt the centrifugation principle to separate the swirl cone of profit.Because in actual production, often need water-oil separating is realized separating fast to enhance productivity, though Gravity Separation is effective isolation technics, but processing speed is relatively slow, and required is vertically highly bigger, therefore generally tend to use centrifugal principle to separate profit, thereby improve separative efficiency.
Carrying out cyclonic unit that underground oil-water separates based on the centrifugation principle also has a variety ofly, can be divided into tangential and axial type and rises and revolve two kinds according to working the mode of revolving.For example publication number is CN 201496054U, and rod pumping pump is with spiral-flow type oil water separator (be applied to underground oil-water separate), and it adopts two inlets inlet form to rise to revolve the formation eddy flow field; Notification number: CN 2118814U, a kind of downhole separation system, its description be to adopt the dynamic flow deflector rotation of axially installing to form eddy flow field.Because limited at the working space of down-hole, the employing tangential has entered the mouth to revolve and made the cyclone radial structure be unfavorable for installing under oil well greatly, if it is applied in the down-hole, makes the cyclone overall dimensions dwindle, therefore using axial type to rise and revolve is better choice.Yet in the down-hole, adopting dynamic flow deflector to rise and revolving also has drawback, makes the equipment complexity, troublesome maintenance.
Summary of the invention
The objective of the invention is at above oil-water cyclone separator rise revolve structural not compact or dynamically rise during in down-hole application and revolve the difficult deficiency of safeguarding, propose a kind of novel pipeline formula oil water separator and play cyclone, can improve symmetric stability, improvement oily water separation technique, the raising downhole separation system utilization of space of eddy flow field.
A kind of novel pipeline formula oil water separator provided by the invention plays cyclone and comprises: but constant tilt is installed in ducted flow deflector more than 2, and described flow deflector is circumferentially uniform along described pipeline, and axially stacked successively at described pipeline; When the fluid of profit mixing is flowed through described flow deflector, form centrosymmetric eddy flow field, thereby with oil and water centrifugation.
Preferably, described flow deflector is a half elliptic, and the angle theta of the major axis of this flow deflector and the cross section of described pipeline is: 10 °≤θ≤60 °.
Preferably, the angle α of the cross section of the minor axis of described flow deflector and described pipeline is: 0 °≤α≤45 °.
Preferably, the angle α of the cross section of the minor axis of described flow deflector and described pipeline is 0 °.
Preferably, the quantity of described flow deflector is 2～6.
Preferably, the thickness h of described flow deflector is 2mm～7mm.
The present invention has following advantage:
1, when profit enter in certain proportion be equipped with oil water separator of the present invention play cyclone the time, run into flow deflector, because flow deflector circumferentially tilts in the same way, that part of fluid along each flow deflector water conservancy diversion of circumferential direction flows basic identical, therefore can reach consistent vortex effect, so just guaranteed that formed eddy flow field is centrosymmetric through behind the flow deflector.And in pipeline, move to a direction behind the oil-water mixture process flow deflector water conservancy diversion, in it travelled forward process, it is few that disturb in suffered external flow field, and therefore, formed symmetrical flow field is more stable.Profit is in the stable eddy flow field of symmetry, because oil phase density is less, suffered entad buoyancy is greater than centrifugal force, and therefore to the tube hub motion, water is motion in the opposite direction then, promptly is distributed near the tube wall; In symmetrical steady flow condition, oil nuclear is stable is distributed in the circular pipe central area, rocking of big displacement can not taken place; Like this, just can play good oil-water separation;
2, static flow deflector mounting method of the present invention has been avoided and has been utilized the sealing problem of dynamic flow deflector under the down-hole high pressure environment, in addition, of the present invention the mode of revolving overcome the interference of employing tangential entrance guiding to established eddy flow field, symmetry is stable more to make eddy flow field, and there is not the profit two-phase reverse flow behind the tangential water conservancy diversion, can avoid heavily mixing phenomenon, thereby improve separative efficiency because of the profit that counter motion brought of profit two-phase.
3, invented cyclone and be installed in the pipeline, do not needed to add a pipe in addition and become two-dimensional structure as the tangential inlet, save the space, thereby can space, more efficient use down-hole, improved treating capacity, be more suitable for being applied in the underground oil-water piece-rate system; On the other hand, under hyperbaric environment, the tangential inlet makes tangent place become weak link, needs the extra weld strength of strengthening this place, then there is not this problem in the flow deflector that axial type is installed in inner-walls of duct, so the present invention has favorable industrial application prospect.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a flow deflector structure schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, of the present invention cyclone comprises: but constant tilt is installed in 4 flow deflectors 4,5,7,8 in the pipeline 3, and flow deflector 4,5,7,8 is circumferentially uniform along pipeline 3, and axially stacked successively at pipeline 3.When the fluid longshore current that mixes when profit is flowed through flow deflector 4,5,7,8 to 6 direction, will form centrosymmetric eddy flow field, profit is different separated because of the different suffered centrifugal force of density in eddy flow field.
As shown in Figure 2, flow deflector 4,5,7,8 adopts half elliptic stainless steel or other high-abrasive material to make, the angle theta of the major axis of flow deflector 4,5,7,8 and the cross section of pipeline 3 is 45 °, minor axis parallels with the cross section of pipeline 3, and promptly the angle α of the cross section of minor axis and pipeline 3 is 0 °.
Traditional tangential mode of revolving that entered the mouth forms eddy flow field, oil phase forms oil nuclear to the central area motion in eddy flow field, and utilize oil nuclear and water to realize water-oil separating in the reverse flow of zones of different, when eddy flow field is unstable, part oil in the oil nuclear has and is reversed the possibility that mobile water is taken away, thereby has increased the difficulty of water-oil separating.And of the present invention mode of revolving forms eddy flow field after promptly utilizing static flow deflector 4,5,7,8 water conservancy diversion of axial installation, and formed oil nuclear of oil phase and near distribute tube wall water move in the same direction in eddy flow field, have then reduced above-mentioned risk.
When profit enters into when of the present invention in certain proportion, run into flow deflector 4,5,7,8, because flow deflector 4,5,7,8 tilts in the same way, that part of fluid along each flow deflector water conservancy diversion of circumferential direction flows basic identical, therefore can reach consistent vortex effect, so just guaranteed that formed eddy flow field is centrosymmetric through behind the flow deflector.In pipeline 3, move behind oil-water mixture process flow deflector 4,5,7,8 water conservancy diversion again to a direction, in it travels forward process, suffered external flow field is disturbed few, and therefore, formed symmetrical flow field is more stable, profit is in the stable eddy flow field of symmetry, because oil phase density is less, therefore suffered entad buoyancy move to tube hub greater than centrifugal force, water is motion in the opposite direction then, promptly is distributed near the tube wall; In symmetrical steady flow condition, oil nuclear is stable is distributed in circular pipe 3 central areas, rocking of big displacement can not taken place; Like this, just can play good oil-water separation.
Profit is in the stable eddy flow field of symmetry, because oil phase density is less, suffered entad buoyancy is greater than centrifugal force, and therefore to the tube hub motion, water is motion in the opposite direction then, promptly is distributed near the tube wall.In symmetrical steady flow condition, oil nuclear is stable is distributed in the circular pipe central area, rocking of big displacement can not taken place, and simultaneously, axially the flow deflector of installing reduces the radial motion distance of oil droplet, can impel oil droplet to move to the axle center faster.
In embodiments of the present invention, flow deflector 4,5,7,8 is that 45 ° angle is installed in the pipeline 3 with the angle theta of the cross section of major axis and pipeline 3, certainly, also can be 10 °≤θ≤60 °.Minor axis parallels with the cross section of pipeline 3, and promptly the angle α of the cross section of minor axis and pipeline 3 is 0 °, certainly, also can be 0 °≤α≤45 °.Thickness h at flow deflector 4,5,7,8 can be arranged on 2mm～7mm usually, and to guarantee enough intensity, the caliber d of pipeline 3 is 75mm, and the thickness of flow deflector is 2mm.，
In embodiments of the present invention, the installation number of flow deflector also can be arranged on 2～6, also can play identical or similar oil-water separation.Each flow deflector is overlapping successively in circular pipe 3 central areas, and the overlapping point in maintenance center abuts against together, thereby guarantees that profit mixes through the flow deflector water conservancy diversion.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. a novel pipeline formula oil water separator plays cyclone, it is characterized in that, comprising: but constant tilt is installed in ducted flow deflector more than 2, and described flow deflector is circumferentially uniform along described pipeline, and axially stacked successively at described pipeline; When the fluid of profit mixing is flowed through described flow deflector, form centrosymmetric eddy flow field, thereby with oil and water centrifugation.
2. device as claimed in claim 1 is characterized in that, described flow deflector is a half elliptic, and the angle theta of the major axis of this flow deflector and the cross section of described pipeline is: 10 °≤θ≤60 °.
3. device as claimed in claim 2 is characterized in that, the angle α of the minor axis of described flow deflector and the cross section of described pipeline is: 0 °≤α≤45 °.
4. device as claimed in claim 3 is characterized in that, the angle α of the minor axis of described flow deflector and the cross section of described pipeline is 0 °.
5. device as claimed in claim 4 is characterized in that, the quantity of described flow deflector is 2～6.
6. as the arbitrary described device of claim 1 to 5, it is characterized in that the thickness h of described flow deflector is 2mm～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101903191A CN102251766A (en) | 2011-07-08 | 2011-07-08 | Novel pipeline type flow deflector oil-water separator rotation starting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101903191A CN102251766A (en) | 2011-07-08 | 2011-07-08 | Novel pipeline type flow deflector oil-water separator rotation starting device |
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| CN102251766A true CN102251766A (en) | 2011-11-23 |
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| CN2011101903191A Pending CN102251766A (en) | 2011-07-08 | 2011-07-08 | Novel pipeline type flow deflector oil-water separator rotation starting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626561A (en) * | 2012-04-16 | 2012-08-08 | 中国科学院力学研究所 | Pipeline flow deflector type oil-water separator and water removing device thereof |
| WO2013016952A1 (en) * | 2011-08-02 | 2013-02-07 | 中国科学院力学研究所 | Tubular oil-water separator and spiral flow generator therefor |
| CN106391335A (en) * | 2016-11-02 | 2017-02-15 | 中国科学院力学研究所 | Spiral piece flow guiding type phase separation device |
| CN107188270A (en) * | 2017-06-13 | 2017-09-22 | 中国科学院力学研究所 | A kind of outer rotation separator of oil water mixture |
| CN108744589A (en) * | 2018-05-31 | 2018-11-06 | 荆门它山之石电子科技有限公司 | A kind of chemical experiment extraction detection device |
| CN111545370A (en) * | 2020-04-16 | 2020-08-18 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
| CN113431784A (en) * | 2021-07-21 | 2021-09-24 | 常州大学 | Spiral flow generating device for deep-sea natural gas hydrate fluidization exploitation pipeline transportation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013016952A1 (en) * | 2011-08-02 | 2013-02-07 | 中国科学院力学研究所 | Tubular oil-water separator and spiral flow generator therefor |
| US9901936B2 (en) | 2011-08-02 | 2018-02-27 | Institute Of Mechanics, Chinese Academy Of Sciences | Pipeline type oil-water separator and cyclone generator for the same |
| CN102626561A (en) * | 2012-04-16 | 2012-08-08 | 中国科学院力学研究所 | Pipeline flow deflector type oil-water separator and water removing device thereof |
| CN106391335A (en) * | 2016-11-02 | 2017-02-15 | 中国科学院力学研究所 | Spiral piece flow guiding type phase separation device |
| CN107188270A (en) * | 2017-06-13 | 2017-09-22 | 中国科学院力学研究所 | A kind of outer rotation separator of oil water mixture |
| CN108744589A (en) * | 2018-05-31 | 2018-11-06 | 荆门它山之石电子科技有限公司 | A kind of chemical experiment extraction detection device |
| CN111545370A (en) * | 2020-04-16 | 2020-08-18 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
| CN111545370B (en) * | 2020-04-16 | 2021-08-24 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
| CN113431784A (en) * | 2021-07-21 | 2021-09-24 | 常州大学 | Spiral flow generating device for deep-sea natural gas hydrate fluidization exploitation pipeline transportation |
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Application publication date: 20111123 |