CN102827630B - Electrostatic coalescence water knockout drum for crude oil - Google Patents
Electrostatic coalescence water knockout drum for crude oil Download PDFInfo
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- CN102827630B CN102827630B CN201210281881.XA CN201210281881A CN102827630B CN 102827630 B CN102827630 B CN 102827630B CN 201210281881 A CN201210281881 A CN 201210281881A CN 102827630 B CN102827630 B CN 102827630B
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Abstract
The invention provides an electrostatic coalescence water knockout drum for crude oil. The electrostatic coalescence water knockout drum comprises a high frequency electrostatic coalescence power supply control cabinet and an electrostatic coalescence water knockout tank. The water knockout drum is characterized in that the electrostatic coalescence water knockout tank is a horizontal pressure vessel, a manhole is arranged at the center of a head at the left end of the tank, an oil inlet is arranged at a side surface of the left head, an oil outlet is arranged on the upper part at a left side of a right head, an electrostatic coalescence electrode assembly is arranged at the middle part of the tank, oil-gas-water splitter plates are vertically installed at both sides of the electrostatic coalescence electrode assembly, a slideway is mounted below the electrostatic coalescence electrode assembly, an air outlet is arranged at the central part on the upper top of the tank, two drain outlets and a water outlet are sequentially provided on the lower bottom of the tank, an insulated electrode mounting hole is arranged in a top right corner of the electrostatic coalescence electrode assembly, and the part of the tank at the right side of a right oil-gas-water splitter plate is divided into split parts which are connected through a flange.
Description
Technical field
The present invention relates to the crude oil electrostatic coalescence water trap in a kind of crude oil Produced Liquid treatment process, specifically be applied to a water trap for various crude oil, there is the crude oil electrostatic coalescence water trap of the coalescent function of physics on the interelectrode voltolisation knot of electrostatic coalescence and water wetted material surface.
Background technology
Oil-field development enters the later stage, former oil viscosity, density constantly increase, oil, water-mass density is poor diminishes, heating energy consumption in dehydration constantly increases, dehydration difficulty is increasing, adopts conventional thermo-chemical setting dihydration, water-and-oil separator dewatering type to be difficult to reach the moisture index of self-cleaning oil, and crude oil water containing is too high, not only can cause oil pipeline and treatment facility heavy corrosion and fouling, and can significantly increase heating energy consumption and power consumption in dehydrating of crude oil process.In addition, thermo-chemical setting dihydration not only consumes a large amount of heating energy consumptions, also needs to add appropriate chemical demulsifier, reduces the surface tension of oil-water interfacial film, improves dewatering efficiency, adds chemical demulsifier and also can increase dehydrating of crude oil cost.
Summary of the invention
The object of this invention is to provide a kind of crude oil electrostatic coalescence water trap, electrode is selected water wetted material, utilizes the electrostatic coalescence between positive and negative electrode, and the physics of electrode surface is coalescent, makes wet oil reach the object of fast dewatering.
The present invention includes the coalescent electrical power control cabinet of high-frequency electrostatic and electrostatic coalescence water distributing can, it is characterized in that: electrostatic coalescence water distributing can is horizontal pressure vessel, in tank body left end end socket, be provided with in the heart manhole, side at left end socket is provided with oil-in, be provided with oil outlet in right-hand member end socket left upper portion, be provided with electrostatic coalescence electrode group at the middle part of tank body, on vertical in electrostatic coalescence electrode group both sides, be provided with oil and gas and water stream plate, below electrostatic coalescence electrode group, be provided with slideway, upper top middle part at tank body is provided with air outlet, lower bottom part at tank body is provided with two sewage draining exits and a water outlet by order, the upper right corner in electrostatic coalescence electrode group is provided with insulated electrode open holes, right oil and gas and water stream plate right side tank body part is made as split, between flange connect.
Electrostatic coalescence electrode group comprises electrode installation supporting seat, electrode insulation strut member, negative potential, positive electrode, flow-stopping plate, electrode is installed cross-arm, positive electrode connection terminal and negative potential connection terminal, with electrode, 2-10 negative potential of parallel installation between cross-arm is installed at electrode supporting seat, positive electrode of parallel installation between every two negative potentials, the two ends up and down of each positive electrode are provided with electrode insulation strut member, with electrode installation supporting seat and electrode, cross-arm being installed respectively by electrode insulation strut member is connected, install on cross-arm and be provided with negative potential connection terminal at electrode, on positive electrode, be provided with positive electrode connection terminal, install between supporting seat and electrode installation cross-arm and be provided with the outside flow-stopping plate of arc at electrode.
Positive electrode and negative potential are made as rectangular flat plate electrode, the upper and lower ends of negative potential is installed cross-arm and electrode with electrode respectively supporting seat welding is installed, and cross-arm is installed and electrode is installed on supporting seat and positive electrode in parallel forms one group of electrostatic coalescence electrode group with insulating mounting at electrode.
The positive and negative electrode of electrostatic coalescence electrode group is selected water wetted material, utilizes electrostatic coalescence between positive and negative electrode, and the physics of electrode surface is coalescent, and wet oil dewatering speed is fast.
Compared with the prior art the present invention has the following advantages:
1, electrostatic coalescence electrode group is built-up type multi-group electrode parallel-connection structure, and the service voltage of electrostatic coalescence electrode group is low, and installation, maintenance is convenient.
2, electrostatic coalescence electrode is selected water wetted material, utilizes the electrostatic coalescence between positive and negative electrode, and the physics of electrode surface is coalescent, makes wet oil reach the object of fast dewatering.Set up oil and gas and water stream plate at the front end of electrostatic coalescence electrode group, set up oil and gas and water stream plate in the rear end of electrostatic coalescence electrode group, improved the dewatering efficiency of electrostatic coalescence electrode group.
3, the electrostatic coalescence electrode that adopts unlike material, can be used in the dehydrating of crude oil that water ratio is less than 30%, also can be applied to the dehydrating of crude oil that water ratio is less than 70%.
Brief description of the drawings
Fig. 1-structural representation of the present invention;
Fig. 2-electrostatic coalescence electrode group structure schematic diagram;
The right view of Fig. 3-Fig. 2;
The vertical view of Fig. 4-Fig. 2;
1-electrostatic coalescence water distributing can housing in figure, 2-oil-in, 3-manhole, 4-imported oil air water spreader plate, 5-venting port, 6-electrostatic coalescence electrode assemblie, 7-insulated electrode, 8-outlet oil and gas and water stream plate, 9-oil outlet, 10-dewatering outlet, 11-sewage draining exit, slideway is installed in 12-tank, 6-1-electrode is installed supporting seat, 6-2-electrode insulation strut member, 6-3-negative potential, 6-4-flow-stopping plate, 6-5-positive electrode, 6-6-electrode is installed cross-arm, 6-7-electrode group sliding pair, 6-8-positive electrode connection terminal, 6-9-negative potential connection terminal.
Embodiment
For further disclosing technical solution of the present invention, below in conjunction with Figure of description, by embodiment, elaborate:
As shown in Figure 1, the present invention forms by slideway 12 being installed in electrostatic coalescence water distributing can housing 1, oil-in 2, manhole 3, imported oil air water spreader plate 4, venting port 5, electrostatic coalescence electrode assemblie 6, insulated electrode 7, outlet oil and gas and water stream plate 8, oil outlet 9, dewatering outlet 10, sewage draining exit 11, tank, it is characterized in that electrostatic coalescence water distributing can housing 1 is for horizontal pressure vessel, one end of cylindrical shell is that flange connects, and the other end is end socket.Retort end socket is provided with manhole 3, be welded with the oil-in 2 that injects enclosure interior in the middle and lower part of seal head end cylindrical shell, in electrostatic coalescence tank, the direction of oil-in 2 is perpendicular to the axis of electrostatic coalescence tank and horizontally disposed, be provided with imported oil air water spreader plate 4 at the front end of electrostatic coalescence assembly, be provided with electrostatic coalescence electrode group 6 at the middle part of electrostatic coalescence assembly, be provided with outlet oil and gas and water stream plate 8 in the rear end of electrostatic coalescence electrode assemblie, be provided with venting port 5 at the top of cylindrical shell, be provided with 2 sewage draining exits 11 in the bottom of cylindrical shell, be provided with dewatering outlet 10 in the bottom of cylindrical shell, be provided with in the bottom of cylindrical shell slideway 12 is installed in tank, be provided with oil outlet 9 on the top of flange seal head end, electrostatic coalescence electrode group 6 in electrostatic coalescence tank is connected by insulated conductor with insulated electrode 7.In the time of application, the present invention is connected on oil processing plant in-line, the coalescent power supply of high-frequency electrostatic is introduced electrostatic coalescence electrode group by the insulated electrode on electrostatic coalescence water distributing can, and the voltage and current in electrostatic coalescence electrode group is regulated by electrostatic coalescence electrical power control cabinet.Wet oil flows out along oil inlet pipe horizontal direction after entering electrostatic coalescence tank, after the rectification of oil and gas and water stream plate, flow into uniformly electrostatic coalescence electrode group, under the effect of high-frequency impulse electric field between electrostatic coalescence electrode group positive and negative electrode, in milk sap, droplet carries out voltolisation knot, make droplet coalescence become large water drop, from oil, water emulsion, separate fast.Cleaned crude oil after point water, after the rectification of fuel-displaced oil and gas and water stream plate, flows out electrostatic coalescence water distributing can from oil outlet, and the water of deviating from from wet oil, flows out electrostatic coalescence water distributing can from dewatering outlet.Serial number name in Fig. 2,3,4 is that 6-1 is that electrode is installed supporting seat, 6-2 is that electrode insulation strut member, 6-3 are that negative potential, 6-4 are that flow-stopping plate, 6-5 are that positive electrode, 6-6 are that electrode is installed cross-arm, 6-7 is that electrode group sliding pair, 6-8 are that positive electrode connection terminal, 6-9 are negative potential connection terminal.
Claims (3)
1. a crude oil electrostatic coalescence water trap, comprise the coalescent electrical power control cabinet of high-frequency electrostatic and electrostatic coalescence water distributing can, it is characterized in that: electrostatic coalescence water distributing can is horizontal pressure vessel, in tank body left end end socket, be provided with in the heart manhole, side at left end socket is provided with oil-in, be provided with oil outlet in right-hand member end socket left upper portion, be provided with electrostatic coalescence electrode group at the middle part of tank body, on vertical in electrostatic coalescence electrode group both sides, be provided with oil and gas and water stream plate, below electrostatic coalescence electrode group, be provided with slideway, upper top middle part at tank body is provided with air outlet, lower bottom part at tank body is provided with two sewage draining exits and a water outlet by order, the upper right corner in electrostatic coalescence electrode group is provided with insulated electrode open holes, right oil and gas and water stream plate right side tank body part is made as split, between flange connect,
Electrostatic coalescence electrode group comprises electrode installation supporting seat, electrode insulation strut member, negative potential, positive electrode, flow-stopping plate, electrode is installed cross-arm, positive electrode connection terminal and negative potential connection terminal, with electrode, 2-10 negative potential of parallel installation between cross-arm is installed at electrode supporting seat, positive electrode of parallel installation between every two negative potentials, the two ends up and down of each positive electrode are provided with electrode insulation strut member, with electrode installation supporting seat and electrode, cross-arm being installed respectively by electrode insulation strut member is connected, install on cross-arm and be provided with negative potential connection terminal at electrode, on positive electrode, be provided with positive electrode connection terminal, install between supporting seat and electrode installation cross-arm and be provided with the outside flow-stopping plate of arc at electrode.
2. crude oil electrostatic coalescence water trap according to claim 1, it is characterized in that: its positive electrode and negative potential are made as rectangular flat plate electrode, the upper and lower ends of negative potential is installed cross-arm and electrode with electrode respectively supporting seat welding is installed, and cross-arm is installed and electrode is installed on supporting seat and positive electrode in parallel forms one group of electrostatic coalescence electrode group with insulating mounting at electrode.
3. crude oil electrostatic coalescence water trap according to claim 2, is characterized in that: its positive and negative electrode is selected water wetted material, and utilize electrostatic coalescence between positive and negative electrode, the physics of electrode surface is coalescent, and wet oil dewatering speed is fast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281881.XA CN102827630B (en) | 2012-08-09 | 2012-08-09 | Electrostatic coalescence water knockout drum for crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281881.XA CN102827630B (en) | 2012-08-09 | 2012-08-09 | Electrostatic coalescence water knockout drum for crude oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102827630A CN102827630A (en) | 2012-12-19 |
| CN102827630B true CN102827630B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210281881.XA Expired - Fee Related CN102827630B (en) | 2012-08-09 | 2012-08-09 | Electrostatic coalescence water knockout drum for crude oil |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464522A (en) * | 1992-11-23 | 1995-11-07 | Edmondson, Jerry M | Electrostatic oil emulsion treating method and apparatus |
| CN2813618Y (en) * | 2005-07-07 | 2006-09-06 | 镇江金门实业有限公司 | High-speed electrostatic desalting and dewatering equipment for crude oil |
| CN101173182B (en) * | 2007-06-02 | 2013-07-10 | 中国石油大学(华东) | Novel crude oil emulsion electrostatic dehydrator |
| CN201501845U (en) * | 2009-09-23 | 2010-06-09 | 北京石油化工学院 | Novel efficient electric crude oil dehydration and desalination equipment |
| CN102021019A (en) * | 2009-09-23 | 2011-04-20 | 北京石油化工学院 | Novel high-efficiency crude oil electric dehydration and desalination method and equipment |
| CN202849337U (en) * | 2012-08-09 | 2013-04-03 | 中国石油化工股份有限公司 | Electrostatic coalescence water segregator for crude oil |
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2012
- 2012-08-09 CN CN201210281881.XA patent/CN102827630B/en not_active Expired - Fee Related
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| CN102827630A (en) | 2012-12-19 |
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Granted publication date: 20140611 Termination date: 20170809 |