CN103087762B - Based on the oil dehydrator of magnetic field and non-uniform electric field - Google Patents
Based on the oil dehydrator of magnetic field and non-uniform electric field Download PDFInfo
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- CN103087762B CN103087762B CN201310041006.9A CN201310041006A CN103087762B CN 103087762 B CN103087762 B CN 103087762B CN 201310041006 A CN201310041006 A CN 201310041006A CN 103087762 B CN103087762 B CN 103087762B
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- outer electrode
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- 230000005684 electric field Effects 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000009987 spinning Methods 0.000 claims abstract description 5
- 241000168254 Siro Species 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 abstract description 29
- 239000010779 crude oil Substances 0.000 abstract description 24
- 230000009471 action Effects 0.000 abstract description 6
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 238000001962 electrophoresis Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 description 11
- 238000004581 coalescence Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000004720 dielectrophoresis Methods 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 230000005685 electric field effect Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
Based on the oil dehydrator of magnetic field and non-uniform electric field, relate to a kind of oil dehydrator, solve existing oil dehydrator and the combined action of magnetic field and non-uniform electric field can not be utilized to carry out electric demulsification processed to crude oil and existing oil dehydrator can not utilize the electrophoresis behavior of non-uniform electric field to carry out the problem of electric demulsification processed to crude oil.Interior electrode sleeve is contained in outer electrode inner chamber, forms dewatering cavity between interior electrode outer wall and outer electrode inwall; One end of outer electrode is connected with high-voltage connection box by insulated enclosure pad, is provided with high-voltage connection bolt and earth stud in high-voltage connection box, and high-voltage connection bolt is connected with interior electrode through insulated enclosure pad, and earth stud is connected with outer electrode; One end away from high-voltage connection box of outer electrode and end cap compact siro spinning technology, end cap offers water outlet; Outer electrode sidewall offers oil outlet and fluid inlet; The outside surface that magnet coil is sleeved on outer electrode is provided with between oil outlet and fluid inlet.The present invention can be widely used in the work of Crude Oil at Sea dehydration.
Description
Technical field
The present invention relates to a kind of oil dehydrator.
Background technology
Along with national economy sustainable growth, energy demand is improved day by day, stone oil supplying has become the strategic issue affecting Economic development.Along with the continuous minimizing of land crude oil reserve, the large oil production company in home and abroad turns one's attention to the exploitation of Crude Oil at Sea.The oil dehydrator of current domestic land application adopts horizontal electrode and perpendicular extension electrode structure, and electrode general wire netting or metal plate are formed.Electric field between electrode is uniform electric field, under voltage of alternating current effect its dehydration mechanism generally follow dipole coalescence, vibrate coalescent, under volts DS effect its dehydration mechanism generally follow dipole coalescence and electrophoresis coalescence mechanism.Owing to limiting by offshore environmental conditions, marine petroleum exploitation platform and land platform have very large difference, and the compactedness of therefore marine petroleum exploitation, high efficiency and security are the important core problems reducing cost of oil production, improve offshore oil exploitation efficiency.And marine petroleum exploitation now uses existing oil dehydrator to have following problem: (1) existing oil dehydrator can not utilize the combined action of magnetic field and non-uniform electric field to carry out electric demulsification processed to crude oil; (2) existing oil dehydrator can not utilize the electrophoresis behavior of non-uniform electric field to carry out electric demulsification processed to crude oil.
Summary of the invention
The present invention can not utilize the combined action of magnetic field and non-uniform electric field to carry out electric demulsification processed to crude oil to solve (1) existing oil dehydrator; (2) existing oil dehydrator can not utilize the electrophoresis behavior of non-uniform electric field to carry out the problem of electric demulsification processed to crude oil, thus provides a kind of oil dehydrator based on magnetic field and non-uniform electric field.
Based on the oil dehydrator of magnetic field and non-uniform electric field, it comprises interior electrode, outer electrode, insulated enclosure pad, high-voltage connection box, high-voltage connection bolt, earth stud, magnet coil and end cap;
Described interior electrode is columnar structure, and dispatch from foreign news agency is tubular structure very, and the external diameter of interior electrode is less than 1/3rd of the internal diameter of outer electrode, and interior electrode sleeve is contained in the inner cavity of outer electrode, forms dewatering cavity between interior electrode outer surface and outer electrode internal surface;
One end of described outer electrode is connected with high-voltage connection box by insulated enclosure pad, is provided with high-voltage connection bolt and earth stud in high-voltage connection box, and described high-voltage connection bolt is connected with interior electrode through insulated enclosure pad, and earth stud is connected with outer electrode;
Described outer electrode, away from one end of high-voltage connection box and end cap compact siro spinning technology, described end cap offers water outlet;
Described outer electrode offers oil outlet on the sidewall of one end of high-voltage connection box, and the sidewall of outer electrode away from one end of high-voltage connection box offers fluid inlet;
The outside surface of described outer electrode is set with magnet coil, and described magnet coil is arranged on the outer electrode between oil outlet and fluid inlet.
The present invention is based on the oil dehydrator of magnetic field and non-uniform electric field, comprising following advantage (1) utilizes the combined action of magnetic field and non-uniform electric field can reduce the viscosity of crude oil Produced Liquid, improves particle water collision coalescence speed and dewatering efficiency in crude oil emulsion by electric demulsification behavior; (2) behavior of non-uniform electric field dielectrophoresis is utilized to make uncharged neutral water particle can form induced dipoles by after electric field induction, under non-uniform electric field effect, make particle water move to strength of electric field maximum position, by non-uniform electric field, Crude Electric Demulsification behavior is improved to speed and the efficiency of Crude Electric Demulsification dehydration.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present invention.
Embodiment
Embodiment one, composition graphs 1 illustrate this embodiment.Based on the oil dehydrator of magnetic field and non-uniform electric field, it comprises interior electrode 1, outer electrode 2, insulated enclosure pad 3, high-voltage connection box 4, high-voltage connection bolt 5, earth stud 6, magnet coil 7 and end cap 14;
Described interior electrode 1 is columnar structure, and outer electrode 2 is tubular structure, and the external diameter of interior electrode 1 is less than 1/3rd of the internal diameter of outer electrode 2, and interior electrode 1 is sleeved on the inner cavity of outer electrode 2, forms dewatering cavity 8 between interior electrode 1 outside surface and outer electrode 2 internal surface;
One end of described outer electrode 2 is connected with high-voltage connection box 4 by insulated enclosure pad 3, high-voltage connection bolt 5 and earth stud 6 is provided with in high-voltage connection box 4, described high-voltage connection bolt 5 is connected with interior electrode 1 through insulated enclosure pad 3, and earth stud 6 is connected with outer electrode 2;
Described outer electrode 2, away from one end of high-voltage connection box 4 and end cap 14 compact siro spinning technology, described end cap 14 offers water outlet 9;
Described outer electrode 2 offers oil outlet 10 on the sidewall of one end of high-voltage connection box 4, and the sidewall of outer electrode 2 away from one end of high-voltage connection box 4 offers fluid inlet 11;
The outside surface of described outer electrode 2 is set with magnet coil 7, and described magnet coil 7 is arranged on the outer electrode 2 between oil outlet 10 and fluid inlet 11.
Embodiment two, this embodiment and embodiment one also comprises interior electrode dielectric layer 12 unlike it, and described interior electrode 1 outside surface is coated with interior electrode dielectric layer 12.
Embodiment three, this embodiment and embodiment one also comprises high pressure inlet wire flange 13 unlike it, and described high pressure inlet wire flange 13 is arranged on high-voltage connection box 4;
Described high pressure inlet wire flange 13 is fixedly connected with the high-voltage connection bolt 5 in high-voltage connection box 4.
Adopt the oil dehydrator that the present invention is based on magnetic field and non-uniform electric field, high-voltage power supply is by high pressure inlet wire flange 12 Indian high terminal box 1, be connected respectively on high-voltage connection bolt 2 and earth stud 13, high-voltage connection bolt 2 is connected with electrode in stainless steel 6, when applying high-voltage power supply between electrode and stainless steel outer electrode in stainless steel, in dewatering cavity 11, set up non-uniform electric field; Magnet coil 5 is wound around in stainless steel outer electrode outside, when not setting up magnetic field during galvanization in dewatering cavity 11 in magnet coil, after crude oil emulsion enters dewatering cavity 11 from fluid inlet, under magnetic field and non-uniform electric field effect, the water in crude oil is made to occur coalescent, water after coalescent sinks to flowing out through water outlet 9 by gravity, crude oil after dehydration flows out through oil outlet 4, thus realizes the oily water separation object of crude oil emulsion.
Adopt the oil dehydrator that the present invention is based on magnetic field and non-uniform electric field, have following two aspect advantages:
(1) utilize magnetic field, viscosity that electric field combined action can reduce crude oil Produced Liquid, improve particle water collision coalescence speed and dewatering efficiency in crude oil emulsion.What the composition of crude oil mainly contained straight chain hydrocarbon, isomeric hydrocarbon, naphthenic hydrocarbon, mononuclear aromatics, polycyclic aromatic hydrocarbon, colloid, bituminous matter and different value changes the compositions such as nitrogen, sulphur and oxygen compound.Because magnetic field is to the effect of electron spinning and nuclear spin magnetic moment, not only make electron magnetic moment and the additional precession of nuclear magnetic moment generation around outfield, and the magnetic moment direction of portions of electronics and core can be made to overturn, thus antiparallel spin state in part c h bond is damaged, colloid and other intermolecular network association polymorphic segment in crude oil is caused to disintegrate, the activity of molecule is increased, and mobility improves, and viscosity reduces.Magnetic field and electric field combined action simultaneously can improve oscillation frequency and the amplitude of polarized water particle in crude oil emulsion, increases particle water collision coalescence speed in crude oil, improves dehydrating of crude oil efficiency with this.
(2) under utilizing non-uniform electric field, dielectrophoresis behavior improves crude oil electric dewatering efficiency.Under non-uniform electric field effect, uncharged neutral water particle can form induced dipoles by after electric field induction, due to the power under non-uniform electric field effect suffered by particle water two ends not etc., by generation net effort towards strong electric field gradient region, the i.e. trend of particle water oriented strength of electric field maximum position movement, collide coalescent with other disperse phase particle water in the process, this phenomenon is called that dielectrophoresis is coalescent.Be whether it has other particle waters to exist around not relying on because this is coalescent with dipole coalescence difference, and square being directly proportional of the electrostatic coalescence power and the strength of electric field that produce, that is: electrical forces does not point to the maximum direction of electric-force gradient all the time by direction of an electric field variable effect, and strength of electric field increase can cause the larger change of dielectrophoresis force.Under obvious uneven electrode structure, under direct current and voltage of alternating current effect, all dielectrophoresis coalescence force be can produce, thus speed and the efficiency of crude oil electric dewatering improved.
Claims (3)
1., based on the oil dehydrator of magnetic field and non-uniform electric field, it is characterized in that it comprises interior electrode (1), outer electrode (2), insulated enclosure pad (3), high-voltage connection box (4), high-voltage connection bolt (5), earth stud (6), magnet coil (7) and end cap (14);
Described interior electrode (1) is columnar structure, outer electrode (2) is tubular structure, the external diameter of interior electrode (1) is less than 1/3rd of the internal diameter of outer electrode (2), interior electrode (1) is sleeved on the inner cavity of outer electrode (2), forms dewatering cavity (8) between interior electrode (1) outside surface and outer electrode (2) internal surface;
One end of described outer electrode (2) is connected with high-voltage connection box (4) by insulated enclosure pad (3), high-voltage connection bolt (5) and earth stud (6) is provided with in high-voltage connection box (4), described high-voltage connection bolt (5) is connected with interior electrode (1) through insulated enclosure pad (3), and earth stud (6) is connected with outer electrode (2);
Described outer electrode (2), away from one end of high-voltage connection box (4) and end cap (14) compact siro spinning technology, described end cap (14) offers water outlet (9);
Described outer electrode (2) offers oil outlet (10) on the sidewall of one end of high-voltage connection box (4), and the sidewall of outer electrode (2) away from one end of high-voltage connection box (4) offers fluid inlet (11);
The outside surface of described outer electrode (2) is set with magnet coil (7), described magnet coil (7) is arranged on the outer electrode (2) between oil outlet (10) and fluid inlet (11).
2. the oil dehydrator based on magnetic field and non-uniform electric field according to claim 1, it is characterized in that it also comprises interior electrode dielectric layer (12), described interior electrode (1) outside surface is coated with interior electrode dielectric layer (12).
3. the oil dehydrator based on magnetic field and non-uniform electric field according to claim 1, it is characterized in that it also comprises high pressure inlet wire flange (13), described high pressure inlet wire flange (13) is arranged on high-voltage connection box (4);
Described high pressure inlet wire flange (13) is fixedly connected with the high-voltage connection bolt (5) in high-voltage connection box (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310041006.9A CN103087762B (en) | 2013-02-01 | 2013-02-01 | Based on the oil dehydrator of magnetic field and non-uniform electric field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310041006.9A CN103087762B (en) | 2013-02-01 | 2013-02-01 | Based on the oil dehydrator of magnetic field and non-uniform electric field |
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| CN103087762A CN103087762A (en) | 2013-05-08 |
| CN103087762B true CN103087762B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658181A (en) * | 2018-04-16 | 2018-10-16 | 中国石油大学(华东) | The oil-water separation system of the synchronous synergetic effect of high-efficiency electromagnetic |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103849428B (en) * | 2014-03-17 | 2016-03-30 | 碧海舟（北京）石油化工设备有限公司 | A kind of magnetoelectricity field emulsion treater |
| CN104927895B (en) * | 2014-03-17 | 2017-02-22 | 碧海舟（北京）石油化工设备有限公司 | High-acid crude oil electro-desalting process |
| CN108641743B (en) * | 2018-04-16 | 2020-04-21 | 中国石油大学(华东) | Efficient electromagnetic synchronous synergistic coalescence device |
| CN111647420A (en) * | 2020-06-10 | 2020-09-11 | 哈尔滨理工大学 | Electromagnetic synergistic oil-water separation device and method |
| CN113307337B (en) * | 2021-06-18 | 2022-06-10 | 重庆工商大学 | Oil-in-water emulsion breaking and separating device for electric field coupling conductive particle bed layer |
| CN114507544B (en) * | 2022-03-17 | 2023-06-13 | 中国海洋石油集团有限公司 | Combined crude oil electric dehydrator based on multi-field synergistic effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108658181A (en) * | 2018-04-16 | 2018-10-16 | 中国石油大学(华东) | The oil-water separation system of the synchronous synergetic effect of high-efficiency electromagnetic |
| CN108658181B (en) * | 2018-04-16 | 2020-10-20 | 中国石油大学(华东) | Oil-water separation system with efficient electromagnetic synchronous synergistic effect |
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