CN103305262B - High water-content crude oil electrostatic dehydration combined electrode - Google Patents
High water-content crude oil electrostatic dehydration combined electrode Download PDFInfo
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- CN103305262B CN103305262B CN201310237947.XA CN201310237947A CN103305262B CN 103305262 B CN103305262 B CN 103305262B CN 201310237947 A CN201310237947 A CN 201310237947A CN 103305262 B CN103305262 B CN 103305262B
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Abstract
The present invention relates to a kind of high water-content crude oil electrostatic dehydration combined electrode, it comprises: insulated electrode assembly, upper strata bare metal electrode, lower metal bare electrode and airtight link box, wherein said upper strata bare metal electrode and lower metal bare electrode fasten on the upper and lower end face of described airtight link box respectively by U-shaped, form bare electrode layer; The front and back panel of described airtight link box is provided with described insulated electrode assembly respectively by insulating part, form insulated electrode layer, and described insulated electrode layer is parallel with described bare electrode layer.The present invention can be applied to the detached job of high water-content crude oil and risk of not leaking electricity, and relies on electric field action simultaneously, improves oily water separation efficiency.
Description
Technical field
The present invention relates to petrochemical equipment, refer to a kind of high water-content crude oil electrostatic dehydration combined electrode especially.It is suitable for using as horizontal electrode in oil field mining liquid processed, electrical desalting/dewatering process, is particularly suitable for the dehydration of high water cut produced fluid or production emulsion.
Background technology
In recent years, along with the aggravation of crude oil in poor quality trend, land and offshore oilfield Deep mining, deepwater and marginal oil field, the oily water separation technique of traditional triphase separator+heat chemistry settling+electro-dewatering cannot meet the qualified outer defeated requirement of crude oil.Because conventional separation methods separation efficiency is low, after I and II is separated, crude oil water containing is still higher, often cause the crude oil water containing entering electro-dewatering apparatus high, thus cause electric current superelevation in electrical desalter, even trip, there is huge potential safety hazard, only by routine adjustment operation condition, change separator and electro-dewatering tank inner electrode and arrange and cannot deal with problems.Meanwhile, due to the exploitation of high water cut oil field, typical separators size is increased greatly, be badly in need of exploitation high efficiency oil/water separator.And increase electrode in the separator, utilize electrostatic coalescence principle to improve separation efficiency, this all needs development of new can be applied to the electrode structure of High water cut environment and suitable electric field distribution.
Summary of the invention
For the problems referred to above, main purpose of the present invention is to provide a kind of high water-content crude oil electrostatic dehydration combined electrode, can be applied to the detached job of high water-content crude oil and risk of not leaking electricity, rely on electric field action simultaneously, improve oily water separation efficiency.
For achieving the above object, a kind of high water-content crude oil electrostatic dehydration combined electrode provided by the present invention, it is characterized in that comprising: insulated electrode assembly, upper strata bare metal electrode, lower metal bare electrode and airtight link box, wherein said upper strata bare metal electrode and lower metal bare electrode fasten on the upper and lower end face of described airtight link box respectively by U-shaped, form bare electrode layer; The front and back panel of described airtight link box is provided with described insulated electrode assembly respectively by insulating part, form insulated electrode layer, and described insulated electrode layer is parallel with described bare electrode layer.
In the technical scheme of the invention described above, described insulated electrode assembly comprises insulated electrode bar, free end and terminals, and described free end adopts epoxy resin direct pouring sealing, or takes insulating material to make band plug and matching nut fit sealing; Described terminals adopt insulating material to be fixedly mounted on described airtight line case by screw thread.
Described insulated electrode bar is made up of internal metal rod and external insulation, and described external insulation is individual layer, bilayer or multilayered structure.
The material of described external insulation is one or more insulating material comprised in tetrafluoroethylene, fluoroplastics, viton, epoxy resin, synthetic glass, pottery or glass, is coated on described internal metal rod surface by coating, spraying, pyrocondensation and/or casting process.
Described airtight link box adopts resistant metal material to make, metalwork is housed in inside and high pressure introduces junction pole, the two vertical connection, described metalwork is circular metal bar, square metal bar or other shapes, the insulated electrode bar of described insulated electrode assembly is connected into a level entirety by described metalwork in described airtight link box, introduce junction pole with described high pressure to be connected simultaneously, high voltage electric is caused on described insulated electrode bar.
The insulated enclosure of described insulated electrode assembly and web member adopt insulating material tetrafluoroethylene or nylon to make.
Adopt technique scheme, the present invention has following beneficial effect: (1) combined electrode of the present invention adopts insulated electrode, overcome the shortcoming that metal electrode easily conducts electricity, can be applied in any water content crude oil, accelerate water droplets coalescence by electric field action settlement separate, effectively improve oily water separation efficiency; (2) between insulated electrode, connection and high pressure introducing are connected in airtight link box with insulated electrode, and structural safety is reliable; (3) combined electrode structure flexible design of the present invention, can adjust the battery lead plate number of plies and strong and weak electricity field distribution flexibly according to feed moisture content and processing requirements, reach multistage dehydrating effect.
Accompanying drawing explanation
Fig. 1 is combined electrode structure schematic diagram of the present invention;
Fig. 2 is that the axle of Fig. 1 looks schematic diagram;
Fig. 3 is insulated electrode bar section figure.
In figure, each mark is as follows: 1-insulated electrode assembly, 2-upper strata bare metal electrode, 3-lower metal bare electrode, the airtight link box of 4-, 5-insulated electrode bar, 6-free end, 8-terminals, 10-metalwork, 11-high pressure introduce junction pole, 51-internal metal rod, 52-external insulation.
Embodiment
Now lift following examples and by reference to the accompanying drawings structure of the present invention and effect be described in detail.
As shown in Figure 1, be the structural representation of combined electrode of the present invention.The structure of combined electrode provided by the present invention is horizontal panel structures, it mainly comprises and is arranged on middle insulated electrode assembly 1, upper strata bare metal electrode 2, lower metal bare electrode 3 and airtight link box 4, and insulated electrode assembly 1 is arranged between upper strata bare metal electrode 2 and lower metal bare electrode 3.Wherein:
Insulated electrode assembly 1 comprises insulated electrode bar 5, free end 6 and terminals 8, as shown in Figure 3, insulated electrode bar 5 is made up of internal metal rod 51 and external insulation 52, and external insulation 52 is according to material therefor characteristic, can be individual layer, also can be double-deck or multilayered structure.The sealing of free end 6 can adopt epoxy resin direct pouring to seal, also the mode that insulating material can be taked to make band plug and matching nut fit sealing seals, and the present embodiment is the mode adopting insulating material to make band plug and matching nut fit sealing.Terminals 8 adopt insulating material to be fixedly mounted on airtight line case 4 by screw thread.
Airtight link box 4 adopts resistant metal material to make, and metalwork 10 is housed in inside and high pressure introduces junction pole 11, adopts screw thread to be vertically fixedly connected with between the two.As shown in Figure 2, metalwork 10 can be circular metal bar, square metal bar or other shapes, on the one hand insulated electrode bar 5 is connected into a level entirety in airtight link box 4, being connected by introducing junction pole 11 with high pressure on the other hand, high voltage electric being caused on insulated electrode bar 5.
The installation mode of connection of combined electrode of the present invention is described below in detail.
As shown in Figure 1, upper strata bare metal electrode 2 and lower metal bare electrode 3 fasten on the upper and lower end face of airtight link box 4 respectively by U-shaped, form bare electrode layer.The front and back panel of airtight link box 4 is separately installed with an insulated electrode assembly 1, the terminals 8 of two insulated electrode assemblies 1 are fixed on respectively by insulating part on the front and back panel of airtight link box 4, form insulated electrode layer, and the insulated electrode layer after installing is parallel with bare electrode layer.
What needs further illustrated is, the material of the external insulation 52 of insulated electrode bar 5 of the present invention can select the multiple insulating material such as tetrafluoroethylene, fluoroplastics, viton, epoxy resin, synthetic glass, pottery, glass, is coated on internal metal rod 51 surface by kinds of processes such as coating, spraying, pyrocondensation, casting.
In the present invention, the insulated enclosure of combined electrode assembly and web member material can select the insulating material such as tetrafluoroethylene, nylon and epoxy resin to process.
And the spacing of bare electrode in the present invention and insulated electrode assembly and the number of plies can design according to processing materials character.Bilayer, three layers and multilayer electric field structure can be designed to, distance between bare electrode and insulated electrode also can design as required, if employing double-field structure, the uniform electric field that power-on and power-off intensity of field is identical can be designed to, also can be designed to lower weak strong electric field structure.If adopt three layers of electric field structure, the uniform electric field that three layers of strength of electric field is identical can be designed to, also can be designed to lower weak in weak strong electric field structure, or lower weak in the strong multiple electric field distribution structure such as weak.Adapt to different moisture content emulsion in the multistage dehydration of different electric field region, make full use of between limited electric field region, reach multistage strengthen dewatering effect.
Claims (3)
1. a high water-content crude oil electrostatic dehydration combined electrode, it is characterized in that comprising: insulated electrode assembly, upper strata bare metal electrode, lower metal bare electrode and airtight link box, wherein said upper strata bare metal electrode and lower metal bare electrode fasten on the upper and lower end face of described airtight link box respectively by U-shaped, form bare electrode layer; The front and back panel of described airtight link box is provided with described insulated electrode assembly respectively by insulating part, form insulated electrode layer, and described insulated electrode layer is parallel with described bare electrode layer; Described insulated electrode assembly comprises insulated electrode bar, free end and terminals, and described free end adopts epoxy resin direct pouring sealing, or takes insulating material to make band plug and matching nut fit sealing; Described terminals adopt insulating material to be fixedly mounted on described airtight line case by screw thread; Described airtight link box adopts resistant metal material to make, metalwork is housed in inside and high pressure introduces junction pole, the two vertical connection, described metalwork is circular metal bar, square metal bar or other shapes, the insulated electrode bar of described insulated electrode assembly is connected into a level entirety by described metalwork in described airtight link box, introduce junction pole with described high pressure to be connected simultaneously, high voltage electric is caused on described insulated electrode bar.
2. high water-content crude oil electrostatic dehydration combined electrode as claimed in claim 1, it is characterized in that: described insulated electrode bar is made up of internal metal rod and external insulation, described external insulation is individual layer, bilayer or multilayered structure.
3. high water-content crude oil electrostatic dehydration combined electrode as claimed in claim 2, it is characterized in that: the material of described external insulation is one or more insulating material comprised in fluoroplastics, viton, epoxy resin, synthetic glass, pottery or glass, be coated on described internal metal rod surface by coating, spraying, pyrocondensation and/or casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237947.XA CN103305262B (en) | 2013-06-17 | 2013-06-17 | High water-content crude oil electrostatic dehydration combined electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237947.XA CN103305262B (en) | 2013-06-17 | 2013-06-17 | High water-content crude oil electrostatic dehydration combined electrode |
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| CN103305262A CN103305262A (en) | 2013-09-18 |
| CN103305262B true CN103305262B (en) | 2015-09-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201713492U (en) * | 2010-05-11 | 2011-01-19 | 姚维厦 | Efficient and energy-saving electric desalting composite polar plate device |
| CN102061188A (en) * | 2009-11-16 | 2011-05-18 | 江苏三星化工有限公司 | Novel high-speed electrical desalting and dewatering apparatus |
| CN203487101U (en) * | 2013-06-17 | 2014-03-19 | 中国海洋石油总公司 | Combined electrode for electrostatic dehydration of high-water-content crude oil |
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2013
- 2013-06-17 CN CN201310237947.XA patent/CN103305262B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061188A (en) * | 2009-11-16 | 2011-05-18 | 江苏三星化工有限公司 | Novel high-speed electrical desalting and dewatering apparatus |
| CN201713492U (en) * | 2010-05-11 | 2011-01-19 | 姚维厦 | Efficient and energy-saving electric desalting composite polar plate device |
| CN203487101U (en) * | 2013-06-17 | 2014-03-19 | 中国海洋石油总公司 | Combined electrode for electrostatic dehydration of high-water-content crude oil |
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| CN103305262A (en) | 2013-09-18 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |
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