CN102743898B - Ducted two-stage flow deflector type oil-water separator and its application method - Google Patents
Ducted two-stage flow deflector type oil-water separator and its application method Download PDFInfo
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Abstract
The invention discloses a ducted two-stage flow deflector type oil-water separator and its application method. The ducted two-stage flow deflector type oil-water separator comprises a primary liquid inlet tube section, an increasing tube section, a primary rotational flow generation tube section, a primary water removal tube section and a secondary rotational flow separation tube section; each of the primary rotational flow generation tube section and the secondary rotational flow separation tube section comprises more than two flow deflectors fixedly and obliquely arranged thereon; and each of the primary water removal tube section and the secondary rotational flow separation tube section is provided with more than one group of water removal apertures. The separator can realize fast and efficient oil-water separation in a limit space, and has a good industrial application prospect.
Description
Technical field
The present invention relates to a kind of device water-oil phase mixed liquor being carried out be separated, particularly relate to a kind of duct type two-stage water conservancy diversion flap-type oil water separator be applied in down-hole and seabed piece-rate system.
Background technology
In the oil industry, oily water separating equipment is important production equipment.Isolation technics is most important to industry development.
Current cyclone separator is divided into profit to divide in advance and sewage disposal two type according to function, discharge after oil water mixture is exploited liquid process, usual needs are organized cyclone pipe more and are combined, generally with separator series connection or parallel connection in technical process, this configuration takes up room greatly, structure is not compact, complicated operation.As United States Patent (USP) 4995989 describes a kind of combined liquid liquid separation equipment, equipment adopts the second-order separation, and prime adopts a swirl-flow devices, and rear class adopts cyclone separator, is separated for strengthening the two-phase liquid different to proportion; Number of patent application is the invention of 02109677.5, describes a kind of the second-order separation, and comprise a maelstrom separator and divide in advance, several little cyclone separators are separated further, bulky.Application number is 200610037772.8 is a kind of three grades of piece-rate systems, carries out water-oil separating reach discharge standard by being contained in by three swirler device collection in a tank.Above-mentioned separator adopts traditional tangential entrance to work the mode of revolving and forms eddy flow field, and tangential entrance and profit outlet flow, to vertical, therefore must have certain requirement to space when multi-stage separation.In being separated under real well, often need to carry out quick separating to enhance productivity to production fluid in a conned space, although above-mentioned cyclone also can realize quick separating, higher to radial dimensional requirement when cyclone is connected, thus limit they down-hole be separated in application.
Summary of the invention
For above Multi-stage oil-water separation facility the deficiencies in the prior art, the invention provides a kind of compact second-stage separator, realize water-oil separating separation rapidly and efficiently in the confined space.
In order to solve the problems of the technologies described above, the invention provides a kind of duct type two-stage water conservancy diversion flap-type oil water separator, comprising: the one-level feed liquor pipeline section connected successively, flaring pipeline section, one-level eddy flow generate pipeline section, one-level dewaters pipeline section and secondary cyclonic separation pipeline section; Wherein, described one-level eddy flow generation pipeline section and secondary cyclonic separation pipeline section all comprise the constant tilt flow deflector of more than 2 mounted thereto; All offer on described one-level dewaters pipeline section and secondary cyclonic separation pipeline section more than one group except water hole;
One-level feed liquor pipeline section is equipped with first-class gauge; What dewater pipeline section and secondary cyclonic separation pipeline section in one-level is outside equipped with cylinder except the pipeline section between water hole, and described cylinder is for holding from described first except water hole and the second liquid of discharging except water hole; Described cylinder is connected with water outlet pipeline section orthogonal with it, water is discharged by water outlet pipeline section, water outlet pipeline section is equipped with elbow, make the outlet of outlet pipe section and to carry out flow path direction parallel, water outlet pipeline section is equipped with second gauge and ball valve, is accounted for the percentage of one-level feed liquor pipeline flow by the flow regulating ball valve to control to fall from the outlet manifold of water outlet pipeline section.
Preferably, above-mentioned oil water separator also has following characteristics:
The flow deflector being arranged on described one-level eddy flow generation pipeline section is one-level flow deflector, and the circumference that described one-level flow deflector generates pipeline section along described one-level eddy flow is uniform, and generates the axially stacked successively of pipeline section at described one-level eddy flow; The flow deflector being arranged on described secondary cyclonic separation pipeline section is secondary flow deflector, and described secondary flow deflector is uniform along the circumference of described secondary cyclonic separation pipeline section, and stacked successively in the axis of described secondary cyclonic separation pipeline section.
Preferably, above-mentioned oil water separator also has following characteristics:
Described first flow deflector is half elliptic, the angle theta that the major axis of this first flow deflector and described one-level eddy flow generate the cross section of pipeline section is: 10 °≤θ≤60 °, and the angle α that the minor axis of described first flow deflector and described one-level eddy flow generate the cross section of pipeline is: 0 °≤α≤45 °.
Preferably, above-mentioned oil water separator also has following characteristics:
Described first flow deflector is 4, and the angle theta that the major axis of described first flow deflector and described one-level eddy flow generate the cross section of pipeline section is 45 °, and the angle α that the minor axis of described first flow deflector and described one-level eddy flow generate the cross section of pipeline section is 0 °.
Preferably, above-mentioned oil water separator also has following characteristics:
Described second flow deflector is half elliptic, the angle β of the major axis of this second flow deflector and the cross section of described secondary cyclonic separation pipeline section is: 10 °≤β≤60 °, and the angle Ф of the minor axis of described second flow deflector and the cross section of described secondary cyclonic separation pipeline is: 0 °≤Ф≤45 °.
Preferably, above-mentioned oil water separator also has following characteristics:
Described second flow deflector is 3, and the angle β of the major axis of described second flow deflector and the cross section of described secondary cyclonic separation pipeline section is 50 °, and the angle Ф of the minor axis of described second flow deflector and the cross section of described secondary cyclonic separation pipeline section is 0 °.
Preferably, above-mentioned oil water separator also has following characteristics:
Offer on described one-level dewaters pipeline section except water hole be that one-level removes water hole, described one-level except the dewater inwall of pipeline section of the outer circumference surface in water hole and described one-level tangent, the described first aperture d' removing water hole is: d'≤bD-c α D, wherein, described b, c are constant, D is that described one-level dewaters the diameter of equipped at outlet port of pipeline section, and α is the entrance oil content of described duct type two-stage water conservancy diversion flap-type oil water separator.
Preferably, above-mentioned oil water separator also has following characteristics:
Described secondary cyclonic separation pipeline section is offered except water hole be that secondary removes water hole, described secondary except the inwall of the outer circumference surface in water hole and described secondary cyclonic separation pipeline section tangent, the described second aperture d' removing water hole is: d'≤bD-0.5c α D, wherein, described b, c are constant, D is the diameter of secondary cyclonic separation pipeline section, and α is the entrance oil content of described duct type two-stage water conservancy diversion flap-type oil water separator.
One-level feed liquor pipeline section is equipped with first-class gauge; What dewater pipeline section and secondary cyclonic separation pipeline section in one-level is outside equipped with cylinder except the pipeline section between water hole, and described cylinder is for holding from described first except water hole and the second liquid of discharging except water hole; Described cylinder is connected with water outlet pipeline section orthogonal with it, water is discharged by water outlet pipeline section, water outlet pipeline section is equipped with elbow, make the outlet of outlet pipe section and to carry out flow path direction parallel, water outlet pipeline section is equipped with second gauge and ball valve, is accounted for the percentage of one-level feed liquor pipeline flow by the flow regulating ball valve to control to fall from the outlet manifold of water outlet pipeline section.
Tool of the present invention has the following advantages:
1, when profit enter in certain proportion be provided with oil water separator of the present invention rise cyclone time, run into flow deflector, because flow deflector circumference tilts in the same way, circumferentially the part fluid flowing of each flow deflector water conservancy diversion is substantially identical, therefore, it is possible to reach consistent vortex effect, this ensures that there after flow deflector, the eddy flow field formed is centrosymmetric.And oil-water mixture moves to a direction in the duct after flow deflector water conservancy diversion, in its forward movement, suffered external flow field interference is few, and therefore, the symmetrical flow field formed is more stable.Profit is in the stable eddy flow field of symmetry, and because oil phase density is less, suffered centripetal buoyancy is greater than centrifugal force, and therefore to tube hub motion, water then moves in the opposite direction, is namely distributed in near-wall; In symmetrical steady flow condition, what oily core was stable is distributed in circular pipe central area, and rocking of Large travel range can not occur; Like this, just good oil-water separation can be played;
2, offer first except the dewater inwall of pipeline section of outer circumference surface and the one-level in water hole tangent, and the first aperture d' removing water hole is set to d'≤bD-c α D; Second except the inwall of outer circumference surface and the secondary cyclonic separation pipeline section in water hole tangent, and the second aperture d' removing water hole is: d'≤bD-0.5c α D; Like this, just can further according to oil content adjust different pore size except water hole, improve water-oil separating efficiency;
3, the present invention is the secondary oily water separating equipment utilizing eddy flow principle, the internal diameter of the entrance and exit of the oil water mixture of oil water separator of the present invention is identical, only need need liquid sucking tube line to be processed to cut down one section of this separator of installation, do not change pipe flow path direction, adaptability be good;
4, eddy flow generation pipeline section of the present invention is arranged in pipeline, do not need as tangential entrance, need to add a pipe in addition and become two-dimensional structure, and flowing to of three mouths is parallel, therefore saves space, thus more effectively can utilize space, down-hole, especially for the equipment needing multi-stage separation, its one-level swirl-flow devices is consistent with the flow direction of secondary swirl-flow devices, and secondary is installed not need to make diametrically and changed, and is more suitable for being applied in down-hole multilevel oil-water separation system; On the other hand, under water in environment, water-bed flowing is higher to the stability requirement of multi-stage separation apparatus, and hyperbaric environment makes traditional tangential entrance become weak link, need the extra weld strength strengthening this place, then there is not this problem in duct type two-stage water conservancy diversion flap-type oil water separator, its secondary structure is compact, space availability ratio is high, and therefore the present invention has good prospects for commercial application.
Accompanying drawing explanation
Fig. 1 is duct type two-stage water conservancy diversion flap-type oil water separator overall schematic;
Fig. 2 is flow deflector scheme of installation;
Fig. 3 offers schematic diagram for removing water hole.
Detailed description of the invention
Hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
The embodiment of the present invention for the duct type two-stage water conservancy diversion flap-type oil water separator in down-hole and future under water piece-rate system, as shown in Figure 1, comprise as lower component: one-level feed liquor pipeline section 1, flaring pipeline section 2, one-level eddy flow generate pipeline section 3 and one-level and to dewater pipeline section 5, secondary cyclonic separation pipeline section 12, water outlet pipeline section 6.Wherein, the feed tube of feed liquor pipeline section 1 is equipped with flowmeter 16, water outlet pipeline section 6 is equipped with a flowmeter 7 and ball valve 8.Generate in pipeline section 3 at one-level eddy flow and one-level flow deflector 4 is installed.In secondary cyclonic separation pipeline section 12, secondary flow deflector 13 is installed.
As shown in Figure 2, one-level eddy flow generates that pipeline section 3 comprises further can constant tilt 4 one-level flow deflectors mounted thereto: the first one-level flow deflector 41, second one-level flow deflector 42, the 3rd one-level flow deflector 43 and the 4th one-level flow deflector 44, the circumference that one-level flow deflector 41,42,43,44 generates pipeline section 3 along one-level eddy flow is uniform, and generates the axially stacked successively of pipeline section 3 at one-level eddy flow.When the fluid of oil mixing with water flows through one-level flow deflector 41,42,43,44 along the direction flowing to 17, will form centrosymmetric eddy flow field, in eddy flow field, profit is separated because centrifugal force suffered by density difference is different.One-level flow deflector 41,42,43,44 adopts half elliptic stainless steel or other high-abrasive material to make, the angle theta that the major axis of one-level flow deflector 41,42,43,44 and one-level eddy flow generate the cross section of pipeline section 3 is 45 °, the cross section that minor axis generates pipeline section 3 with one-level eddy flow parallels, and namely minor axis and one-level eddy flow generate the angle α of the cross section of pipeline section 3 is 0 °.
Traditional tangential entrance works the mode of revolving and forms eddy flow field, in eddy flow field, oil phase forms oily core to central area motion, and utilize oily core and water to realize water-oil separating in the reverse flow of zones of different, when eddy flow field is unstable, the possibility that part oil in oil core has the water-band being reversed flowing to walk, thus add the difficulty of water-oil separating.And of the present invention mode of revolving forms eddy flow field after namely utilizing static primary flow deflector 41,42,43,44 water conservancy diversion axially installed, the oily core that oil phase is formed in eddy flow field moves in the same direction with the aqueous phase distributed at near-wall, then reduce above-mentioned risk.
In embodiments of the present invention, one-level flow deflector 41,42,43,44 is arranged on one-level eddy flow in the same way with the angle that the angle theta that major axis and one-level eddy flow generate the cross section of pipeline section 3 is 45 ° and generates in pipeline section 3, certainly, also can be 10 °≤θ≤60 °.The cross section that minor axis generates pipeline section 3 with one-level eddy flow parallels, and namely minor axis and one-level eddy flow generate the angle α of the cross section of pipeline section 3 is 0 °, certainly, also can be 0 °≤α≤45 °.Usually can be arranged on 2mm ~ 7mm in the thickness h of one-level flow deflector 41,42,43,44, to ensure enough intensity, the caliber d that one-level eddy flow generates pipeline section 3 is 75mm, and the thickness of one-level flow deflector is 2mm.
In embodiments of the present invention, the installation number of one-level flow deflector 4 also can be arranged on 2 ~ 6, also can play identical or similar oil-water separation.It is overlapping successively that each one-level flow deflector generates pipeline section 3 central area at one-level eddy flow, and overlap point in maintenance center abuts against together, thus ensure that oil-water mixture is through flow deflector water conservancy diversion.
As shown in Figure 1, one-level dewaters pipeline section 5 offers and flows to 1 group of the suitable spacing in main flow direction interval along profit and to dewater hole 15 with upper level, often group is identical with the quantity of one-level flow deflector 41,42,43,44 except the quantity in water hole 15, and is uniformly distributed along one-level pipeline section 5 circumference that dewaters.One-level except the dewater inwall of pipeline section 5 of outer circumference surface and the one-level in water hole 15 tangent, as shown in Figure 3, and the aperture d' removing water hole 15 is: d'≤bD-c α D, wherein, b, c are constant, and D is that one-level dewaters the diameter of equipped at outlet port of pipeline section 5, and α is the entrance oil content of oil water separator.In embodiments of the present invention, b is 0.25, D be 0.05m, c is 0.8925.By arranging except water hole like this, substantially reduce the probability that oil flows out from outlet conduit, thus down-hole can be applied to water is separated reinjection into reservoir on the spot.
After one-level dewaters pipeline section 5, connect secondary cyclonic separation pipeline section 12, secondary cyclonic separation pipeline section 12 is provided with the secondary flow deflector 13 identical with one-level flow deflector rotation direction, and secondary flow deflector 13 is stacked successively vertically on secondary cyclonic separation pipeline section 12.When the fluid of oil mixing with water flows through secondary flow deflector 13, can strengthen swirl strength, make after one-level dewaters pipeline section 5, form centrosymmetric stronger eddy flow field, in eddy flow field, profit is separated further because centrifugal force suffered by density difference is different.Secondary flow deflector 13 also adopts half elliptic stainless steel or other high-abrasive material to make, the major axis of secondary flow deflector 13 and the angle β of secondary cyclonic separation pipeline section 12 cross section are 50 °, minor axis parallels with the cross section of secondary cyclonic separation pipeline section 12, and namely the angle Ф of the cross section of minor axis and secondary cyclonic separation pipeline section 12 is 0 °.
In embodiments of the present invention, the angle that secondary flow deflector 13 is 50 ° with the angle β of the cross section of major axis and secondary cyclonic separation pipeline section 12 is arranged in secondary cyclonic separation pipeline section 12 in the same way, certainly, also can be 10 °≤β≤60 °.Minor axis parallels with the cross section of secondary cyclonic separation pipeline section 12, and namely the angle Ф of the cross section of minor axis and secondary cyclonic separation pipeline section 12 is 0 °, certainly, also can be 0 °≤Ф≤45 °.Usually 2mm ~ 7mm can be arranged at the thickness of secondary flow deflector 13.
In embodiments of the present invention, the installation number of secondary flow deflector 13 can be arranged on 2 ~ 6, can play identical or similar oil-water separation.Each secondary flow deflector is overlapping successively in secondary cyclonic separation pipeline section 12 central area, and overlap point in maintenance center abuts against together, thus ensures that oil-water mixture is through flow deflector water conservancy diversion.
Traditional tangential entrance works the mode of revolving and forms eddy flow field, in eddy flow field, oil phase forms oily core to central area motion, and utilize oily core and water to realize water-oil separating in the reverse flow of zones of different, usual entrance flow to be separated after outlet flow to mutually vertical, therefore will realize two-stage tandem has certain requirement to radial dimension.And secondary water conservancy diversion flap-type of the present invention works mode of revolving after flowing to static primary flow deflector 41,42,43,44 water conservancy diversion that is connected in series and namely utilizes and axially install and forms eddy flow field, after dewatering, eddy flow is strengthened along flowing to continuation installation secondary flow deflector 13, and further water is separated, both are connected in series vertically, reduce the demand to radial dimension, therefore more compact structure, be more suitable for having the occasion of requirement to use in down-hole with to enforcement space.
On secondary cyclonic separation pipeline section 12, apart from secondary flow deflector 13 certain length place, as shown in Figure 1, offer and flow to more than 1 group secondary of the suitable spacing in main flow direction interval except water hole 11 along profit, the group number that secondary removes water hole 11 is identical with the quantity of secondary flow deflector 13, and is uniformly distributed along secondary cyclonic separation pipeline section 12 circumference.Secondary except the inwall of outer circumference surface and the secondary cyclonic separation pipeline section 12 in water hole 11 tangent, as shown in Figure 3, and the aperture d' that secondary removes water hole 11 is: d'≤bD-0.5c α D, wherein, b, c are constant, and D is the diameter of secondary cyclonic separation pipeline section 12, and α is the entrance oil content of oil water separator.In embodiments of the present invention, b is 0.25, D be 0.05m, c is 0.8925.
Except the pipeline section between water hole, concentric drums 14 is had to form a chamber with it at dewater pipeline section 5 and secondary cyclonic separation pipeline section 12 of one-level, this chamber comprises for holding the liquid of discharging except water hole from firsts and seconds, cylinder 14 is equipped with water outlet pipeline section 6 orthogonal with it, water is discharged by water outlet pipeline section 6, water outlet pipeline section 6 is equipped with elbow, make the outlet of outlet pipe finally with to carry out flow path direction parallel, water outlet pipeline section 6 being equipped with flowmeter 7 and a ball valve 8, controlling by regulating ball valve 8 percentage accounting for feed liquor pipeline section 1 flow from outlet 9 points of flows poured off.Remaining is carried out liquid and is discharged by the outlet 10 in main flow downstream, does not change the flow direction of main flow, and outlet 10 is the outlet being arranged on secondary cyclonic separation pipeline section 12 output, and outlet 10 is oil rich outlet.
The method being applied in down-hole and the future duct type two-stage water conservancy diversion flap-type oil water separator under water in piece-rate system provided by the invention, comprising:
By the oil well liquid-producing of oil concentration between 5%-20%, with the flow of 15m3/h, enter from one-level feed liquor pipeline section 1 through first-class gauge 16, the first-class gauge 16 record entry flow of entrance;
Through the water conservancy diversion of flaring pipeline section 2, water-oil phase mixed liquor smoothly transits to one-level eddy flow and generates pipeline section 3, flow through the fluid that the first flow deflector 41,42,43,44 forms High Rotation Speed, water-oil phase is under centrifugal action, quick separating, the aqueous phase that density is larger is enriched in inside pipe wall, and the oil phase that density is less is then enriched in tube hub.The water-oil phase of separator well enters one-level at effect of inertia and to dewater pipeline section 5, dewater in pipeline section 5 in one-level, oil phase is enriched in tube hub, be distributed in water that one-level dewaters near pipeline section 5 inwall then by first on tube wall except flowing out thus realize one-level water-oil separating in water hole 15, oil water mixture after one-level is separated enters secondary cyclonic separation pipeline section 12, flow through the guide functions of secondary flow deflector 13, spin intensity is enhanced, and water is removed water hole 11 further by secondary and separates.
By the ball valve 8 on adjusting water outlet pipeline section 6, monitoring second gauge 7 and first-class gauge 16 look number, what make second gauge 7 looks number at about 50% of first-class gauge 16, separates the water of about 50%; In the present embodiment, one-level removes the aperture d' in water hole 15 is 3mm.The aperture that secondary removes the mouth of a river 11 is 2mm.The rear oil water mixture of remaining 50% of separation is transported to platform or well head carries out meticulous separation.
Reinjected water oil content after this device processes is less than 1000ppm, reaches national down-hole or seabed disposal under water system cleanup standard.
Application example one
In technique scheme, one-level feed liquor pipeline section 1 caliber is 50mm, two end face diameters of flaring pipeline section 2 are respectively 50mm and 75mm, it is that dewater two end face diameters of pipeline section 5 of 75mm and one-level are respectively 75mm and 50mm that one-level eddy flow generates the caliber of pipeline section 3, one-level flow deflector 4 has 4, the angle theta that one-level flow deflector major axis and one-level eddy flow generate the cross section of pipeline section 3 is 45 °, the angle α that minor axis and one-level eddy flow generate the cross section of pipeline section 3 is 0 °, the caliber of secondary cyclonic separation pipeline section 12 is 50mm, the number of secondary flow deflector is 3, the angle theta that secondary flow deflector major axis and one-level eddy flow generate the cross section of pipeline section 3 is 50 °, the angle α of the cross section of minor axis and secondary eddy flow generating tube section 4 is 0 °, the caliber of water outlet pipeline section 6 is 50mm.One-level except the aperture in water hole 15 be 3mm, one-level, except offering 5 cross sections altogether in water hole, is evenly distributed on one-level and dewaters pipeline section 5.The aperture that secondary removes water hole is 2mm, and secondary is except offering 5 cross sections altogether in water hole.
One-level feed liquor pipeline section 1 length is 100mm, and the length of flaring pipeline section 2 is 150mm, and the length that one-level eddy flow generates pipeline section 3 is 750mm, and wherein one-level flow deflector is arranged on and generates pipeline section 3 inflow entrance 50mm place apart from one-level eddy flow.One-level flow deflector 4 thickness 2mm, one-level pipeline section 5 length that dewaters is 200mm.The length of secondary cyclonic separation pipeline section 12 is 1000mm, and secondary flow deflector is arranged on distance secondary cyclonic separation pipeline section 12 inflow entrance 100mm.Secondary is opened in distance flow deflector 500mm place except first round in water hole, evenly offers.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a duct type two-stage water conservancy diversion flap-type oil water separator, is characterized in that, comprising: the one-level feed liquor pipeline section connected successively, flaring pipeline section, one-level eddy flow generate pipeline section, one-level dewaters pipeline section and secondary cyclonic separation pipeline section; Wherein, described one-level eddy flow generation pipeline section and secondary cyclonic separation pipeline section all comprise the constant tilt flow deflector of more than 2 mounted thereto; All offer on described one-level dewaters pipeline section and secondary cyclonic separation pipeline section more than one group except water hole;
One-level feed liquor pipeline section is equipped with first-class gauge; What dewater pipeline section and secondary cyclonic separation pipeline section in one-level is outside equipped with cylinder except the pipeline section between water hole, and described cylinder is for holding the liquid of discharging except water hole except water hole and secondary from described one-level; Described cylinder is connected with water outlet pipeline section orthogonal with it, water is discharged by water outlet pipeline section, water outlet pipeline section is equipped with elbow, make the outlet of outlet pipe section and to carry out flow path direction parallel, water outlet pipeline section is equipped with second gauge and ball valve, is accounted for the percentage of one-level feed liquor pipeline flow by the flow regulating ball valve to control to fall from the outlet manifold of water outlet pipeline section;
The flow deflector being arranged on described one-level eddy flow generation pipeline section is one-level flow deflector, and the circumference that described one-level flow deflector generates pipeline section along described one-level eddy flow is uniform, and generates the axially stacked successively of pipeline section at described one-level eddy flow; The flow deflector being arranged on described secondary cyclonic separation pipeline section is secondary flow deflector, and described secondary flow deflector is uniform along the circumference of described secondary cyclonic separation pipeline section, and stacked successively in the axis of described secondary cyclonic separation pipeline section;
Described one-level flow deflector is half elliptic; Described one-level flow deflector is 4, and the angle theta that the major axis of described one-level flow deflector and described one-level eddy flow generate the cross section of pipeline section is 45 °, and the angle α that the minor axis of described one-level flow deflector and described one-level eddy flow generate the cross section of pipeline section is 0 °; Described secondary flow deflector is half elliptic; Described secondary flow deflector is 3, and the angle β of the major axis of described secondary flow deflector and the cross section of described secondary cyclonic separation pipeline section is 50 °, and the angle Ф of the minor axis of described secondary flow deflector and the cross section of described secondary cyclonic separation pipeline section is 0 °;
Offer on described one-level dewaters pipeline section except water hole be that one-level removes water hole, described one-level except the dewater inwall of pipeline section of the outer circumference surface in water hole and described one-level tangent, the aperture d' that described one-level removes water hole is: d'≤bD-c α D, wherein, described b, c are constant, D is that described one-level dewaters the diameter of equipped at outlet port of pipeline section, and α is the entrance oil content of described duct type two-stage water conservancy diversion flap-type oil water separator;
Described secondary cyclonic separation pipeline section is offered except water hole be that secondary removes water hole, described secondary except the inwall of the outer circumference surface in water hole and described secondary cyclonic separation pipeline section tangent, the aperture d' that described secondary removes water hole is: d'≤bD-0.5c α D, wherein, described b, c are constant, D is the diameter of secondary cyclonic separation pipeline section, and α is the entrance oil content of described duct type two-stage water conservancy diversion flap-type oil water separator.
2. apply a method for duct type two-stage water conservancy diversion flap-type oil water separator as claimed in claim 1, comprising:
By the oil well liquid-producing of oil concentration between 5%-20%, with 15m
3the flow of/h, is input to one-level feed liquor pipeline section, by described first-class gauge record entry flow;
Ball valve on adjusting water outlet pipeline section, monitoring second gauge and first-class gauge look number, make first-class gauge look number at about 50% of second gauge, to separate the water of about 50%.
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| CN102423549A (en) * | 2011-08-02 | 2012-04-25 | 中国科学院力学研究所 | Dewatering apparatus and oil-water cyclone separator of pipe type distributor oil-water separator |
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| US8911635B2 (en) * | 2009-08-31 | 2014-12-16 | Petroleo Brasileiro S.A.—Petrobras | Hydrocyclone for the separation of fluids |
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| CN102251765A (en) * | 2011-07-25 | 2011-11-23 | 中国科学院力学研究所 | Axial type inlet oil-water cyclone separator |
| CN102423549A (en) * | 2011-08-02 | 2012-04-25 | 中国科学院力学研究所 | Dewatering apparatus and oil-water cyclone separator of pipe type distributor oil-water separator |
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Inventor after: Le Zuan Inventor after: Shi Shiying Inventor after: Wu Yingxiang Inventor after: Deng Xiaohui Inventor after: Xu Jingyu Inventor after: Xu Wenjiang Inventor after: Zou Xinbo Inventor after: Liu Min Inventor after: Luo Changhua Inventor after: Wang Sheng Inventor before: Le Zuan Inventor before: Shi Shiying Inventor before: Wu Yingxiang Inventor before: Deng Xiaohui Inventor before: Xu Jingyu Inventor before: Xu Wenjiang Inventor before: Zou Xinbo Inventor before: Liu Min Inventor before: Luo Changhua Inventor before: Wang Sheng |