CN204999857U - Crude oil electro -desalting dewatering device - Google Patents
Crude oil electro -desalting dewatering device Download PDFInfo
- Publication number
- CN204999857U CN204999857U CN201520753934.2U CN201520753934U CN204999857U CN 204999857 U CN204999857 U CN 204999857U CN 201520753934 U CN201520753934 U CN 201520753934U CN 204999857 U CN204999857 U CN 204999857U
- Authority
- CN
- China
- Prior art keywords
- crude oil
- electrode
- unit
- tank body
- separation unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Electrostatic Separation (AREA)
Abstract
The utility model discloses a crude oil electro -desalting dewatering device, a serial communication port, the device including jar the body and the jar is internal to be equipped with rectification breakdown of emulsion unit, gravitational separation unit, static separating element and to collect oily unit, rectification breakdown of emulsion unit connection gravitational separation unit, gravitational separation unit connection static separating element, the oily unit of collection is connected to the static separating element. The beneficial effect of the utility model as follows: the utility model discloses the utilization of crude oil electricity desalination and dehydration method exchanges the electrostatic field breakdown of emulsion by force and has improved water oil separating efficiency and throughput, utilizes the gravitational separation to reduce the power consumption, can make the crude oil water content after the processing be lighter than 0.5%, and the salt content is lighter than 50mgL, and the simple technology of process can obtain qualified commercial crude, and the power consumption can reduce more than 60%. Being used for oil plant electro -desalting device to make and taking off the back and contain the low 3mgL of salt, moisturely be lighter than 0.3%, the power consumption can reduce more than 50%.
Description
Technical field
The utility model relates to the wet oil desalting and dewatering treatment facility in a kind of petrochemical industry, particularly relates to a kind of crude oil electric desalting/dewatering unit.
Background technology
Need to carry out desalting and dewatering process in the production process of crude oil.Used by slurry tank, electrical desalting/dewatering device power consumption consume high, efficiency is low.
In existing electrical desalting/dewatering device, to be mostly in whole tank all added electric fields, the electric field action time is long, and energy consumption is high.
Utility model content
In order to solve deficiency of the prior art, the utility model proposes crude oil electric desalting/dewatering unit that a kind of separation efficiency is high, treatment effect good, power consumption is low.The technical scheme adopted is as follows:
A kind of crude oil electric desalting/dewatering unit, it is characterized in that, described device comprises tank body and in described tank body, is provided with rectification breakdown of emulsion unit, gravity separation unit, electrostatic separation unit and oil-collecting unit;
Rectification breakdown of emulsion unit connects gravity separation unit, and gravity separation unit connects electrostatic separation unit; Electrostatic separation unit connects oil-collecting unit;
Wherein,
Rectification breakdown of emulsion unit, utilizes strong alternating-electric field to be in the crude oil demulsification of oil-water emulsion liquid status;
Gravity separation unit, utilizes gravity settling for being separated with water by the crude oil in liquid after breakdown of emulsion;
Electrostatic separation unit, dewaters the crude oil after gravity separation further under electrostatic field;
Oil-collecting unit, for taking out the crude oil after dehydration.
Further, described rectification breakdown of emulsion unit comprises electrode, rectifying tube and high voltage electric intake I; Be provided with insulation in described rectifying tube cavity and be hung with electrode, described Electrode connection is to power supply; When the tube wall ground connection of described electrifying electrodes, described rectifying tube, described rectifying tube forms interior strong alternating-electric field.
Further, described electrostatic separation unit comprises interfacial meter, insulating suspension, electrode beam, high voltage electric intake II, compound electrode, sand collecting hopper and water out; Wherein,
Compound electrode, for connecting power supply and form electrostatic field in the tank body of described electrostatic separation unit; Described power supply is pulse, interchange or direct current;
Sand collecting hopper, for discharging described tank body by the solid particulate matter be settled out in crude oil;
Water out, for discharging described tank body by the water separated from crude oil.
Further, described compound electrode comprises the different multiple electrodes of length, and the upper end of described multiple electrode is separately fixed at the different positions on two electrode beams; Described compound electrode is connected to power supply respectively by two described electrode beams; Described compound electrode is the multiple-layer horizontal battery lead plate being parallel to described tank body axis.
Further, described compound electrode comprises the different multiple electrodes of length, and the upper end of described multiple electrode is separately fixed at the different positions on two electrode beams; Described compound electrode is connected to power supply respectively by two described electrode beams; Described compound electrode is the multiple-layer horizontal battery lead plate being parallel to described tank body axis; Described compound electrode is coaxial with tank body or out-of-alignment annular electro pole plate.
Further, the bottom in described tank body is provided with sand clean out pipe, and described sand clean out pipe can will be deposited on the solid particulate matter punching of described tank base to sand collecting hopper.
Further, described oil-collecting unit comprises the crude exports be arranged on described tank body.
The beneficial effects of the utility model are as follows:
The utility model crude oil electric desalting dewatering process utilizes the strong electrostatic field breakdown of emulsion that exchanges to improve oily water separation efficiency and processing power, gravity separation is utilized to reduce power consumption, the water content in crude oil after process can be made to be less than 0.5%, saltiness is less than 50mg/L, can obtain qualified separator oil through simple technique, power consumption can reduce by more than 60%.For desalting in oil refinery device can make de-after the low 3mg/L of saliferous, be moisturely less than 0.3%, power consumption can reduce by more than 50%.
Accompanying drawing explanation
Fig. 1 is one of the utility model preferred embodiment one Crude Oil electrical desalting/dewatering apparatus structure schematic diagram;
Fig. 2 is the utility model preferred embodiment one Crude Oil electrical desalting/dewatering apparatus structure schematic diagram two;
Fig. 3 is the inside top figure of Fig. 2 shown device;
Fig. 4 is the transverse sectional view of rectification breakdown of emulsion unit in the utility model preferred embodiment one;
Fig. 5 is the electrode schematic diagram in the utility model preferred embodiment one;
Crude exports baffle plate schematic diagram in Fig. 6 the utility model preferred embodiment one;
Fig. 7 is the structural representation of the utility model preferred embodiment one Crude Oil outlet.
Reference numeral:
A, rectification breakdown of emulsion unit; B, gravity separation unit; C, electrostatic separation unit; D, oil-collecting unit;
1, tank body; 2, crude oil entrance; 3, electrode; 4, rectifying tube; 5, high voltage electric intake; 6, interfacial meter;
7, insulating suspension; 8, electrode beam; 9, high voltage electric intake; 10, compound electrode; 11, crude exports;
12, outlet damper, 13, sand collecting hopper; 14, water port, 15, sand clean out pipe
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the utility model is further elaborated.
Embodiment one
Preferred embodiment one:
This preferred embodiment provides a kind of crude oil electric desalting/dewatering unit.As shown in Figure 1, the device rectification breakdown of emulsion unit A, gravity separation unit B, electrostatic separation unit C and the oil-collecting cells D that comprise tank body 1 and connect successively in tank body 1.Wherein, rectification breakdown of emulsion unit A utilizes strong alternating-electric field to be in the crude oil demulsification of oil-water emulsion liquid status; Gravity separation unit B is with carrying out oily water separation under gravity; , electrostatic separation unit C be used under electrostatic field, the crude oil after gravity separation is dewatered further; Oil-collecting cells D is for taking out the crude oil after dehydration.
Utilize strong alternating-electric field that the crude oil being in oil-water emulsion liquid status is carried out to breakdown of emulsion, gravity separation dehydration, uses electrostatic field to be separated further, improve efficiency, reduce power consumption.
See as shown in Figures 2 and 3, rectification breakdown of emulsion unit A comprises rectifying tube 4.Figure 4 shows that the transverse sectional view of rectification breakdown of emulsion unit preferred structure.Rectifying tube 4 is arranged on the baffle plate at two ends, is hung with electrode 3 in the cavity of rectifying tube 4 by insulating suspension.Electrode 3 is positioned at the center of rectifying tube 4.AC high voltage (strength of electric field is 1000-5000V/cm) is introduced, high voltage electric connection electrode 3 by high voltage electric intake 5; The tube wall ground connection of rectifying tube 4, thus form strong alternating-electric field.
Gravity separation unit B, with carrying out oily water separation under gravity, removes most of water, thus lowers the power consumption of electrostatic separation unit.
Electrostatic separation unit C comprises compound electrode 10 (as shown in Figure 5), sand collecting hopper 13, water out 14.Compound electrode 10 comprises the different multiple electrodes of length, and the upper end of multiple electrode is separately fixed at the different positions on two electrode beams 8; Two electrode beams 8 hang on the top in tank body 1 respectively by insulating suspension 7.
Two electrode beams 8 pass into interchange, direct current or pulsed high-voltage respectively by high voltage electric intake 9, are preferably pulse, strength of electric field 200-2000V/cm.Compound electrode 10 is connected to this high voltage electric, forms potential difference between adjacent electrode, thus forms electric field.Because water from top to bottom water-content larger than oil density increases, so the spacing between lower electrode is large, be conducive to like this reducing power consumption.
Sand collecting hopper 13 discharges tank body 1 for the solid particulate matter will be settled out in crude oil; Water out 14 discharges tank body 1 for the water will separated from crude oil.
Bottom in tank body 1 is provided with sand clean out pipe 15; Current enter sand clean out pipe from sand washing water inlet, and the solid particulate matter be deposited on bottom tank body 1 rushes to sand collecting hopper 13 along sand clean out pipe 15 by current.
Oil-collecting cells D comprises the outlet damper be arranged in tank body 1, and its preferred structure as shown in Figure 6.
Oil-collecting cells D comprises the crude exports 11 be arranged on tank body 1, and its preferred structure as shown in Figure 7.
Interfacial meter 6 is set between rectification breakdown of emulsion unit and electrostatic separation unit.Be provided with baffle plate between the various elements, baffle plate do not limit for the shape of the structure of crude oil circulation, is as the criterion with the functional requirement meeting unit.
Crude oil electric desalting/dewatering is use electric field to carry out breakdown of emulsion to the pending crude oil being in oil-water emulsion liquid status and use gravity separation to reduce moisture, that electrostatic field carrys out further pending crude oil velocity of separation.The method comprises the steps:
Step 1, oil mixing with water medium flow are through rectification breakdown of emulsion district, and due to the effect of rectifying tube 4 internal electric field, make water solution of oil breakdown of emulsion, horizontal flow is with the disengaging zone of electrostatic field.Use the water-oil interface in interfacial meter 7 control device.
Small droplets in the oil-water mixture of step 2, breakdown of emulsion is broken into a large drop, droplet radius increases gradually and in agglomeration process, the number of drop reduces gradually, each large drop relies on below gravity settling to oily interface, condenses and enters aqueous phase, and forming obvious water-oil interface layer gradually;
The water content in crude oil of step 3 after gravity settling reduces, and enters the further coalescence sedimentation of electrostatic field water droplet, reduces thus make that electric current is less, power consumption reduces due to water-content.Isolated water is discharged through water out 12.
While oily water separation, the solid particulate in crude oil is deposited on the bottom of tank body 1 under gravity.When solids particles precipitate is to certain thickness, by sand clean out pipe 15 by the sediment outflow pipe airtight discharge of solid deposits from sand collecting hopper 13.Crude oil after dehydration is separated flow to oil collecting zone through crude oil distribution plate 12, is flowed out by crude exports 11.
Preferred embodiment two:
A kind of Desalting and Dewatering from Crude Oil method that this preferred embodiment provides crude oil electric desalting/dewatering unit and uses this device to realize, the structure of this device is substantially identical with preferred embodiment one.This device comprises tank body and in tank body, connects rectification breakdown of emulsion unit, gravity separation unit, electrostatic separation unit and oil-collecting unit successively.Wherein, rectification breakdown of emulsion unit utilizes electric field by the crude oil demulsification being in oil-water emulsion liquid status after heating; Gravity separation unit utilizes gravity settling to remove most of water, and electrostatic separation unit is used for the crude oil after gravity separation to be separated with water; Oil-collecting unit is for taking out the crude oil after dehydration.
Difference is: when processing the crude oil that density is little, viscosity is low, electrostatic separation district can not establish electric field.That is, in separating unit, compound electrode is not set, utilizes gravity methods to be separated.Even if arrange electric field, the form of electric field also can be different from the form in preferred embodiment one, that is, compound electrode can for being parallel to the multiple-layer horizontal battery lead plate of tank body axis, or be coaxial with tank body or out-of-alignment annular electro pole plate.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. crude oil electric desalting/dewatering unit, it is characterized in that, described device comprises tank body (1) and in described tank body (1), is provided with rectification breakdown of emulsion unit (A), gravity separation unit (B), electrostatic separation unit (C) and oil-collecting unit (D);
Rectification breakdown of emulsion unit (A) connects gravity separation unit (B), and gravity separation unit (B) connects electrostatic separation unit (C); Electrostatic separation unit (C) connects oil-collecting unit (D);
Wherein,
Rectification breakdown of emulsion unit (A), utilizes strong alternating-electric field to be in the crude oil demulsification of oil-water emulsion liquid status;
Gravity separation unit (B), utilizes gravity settling for being separated with water by the crude oil in liquid after breakdown of emulsion;
Electrostatic separation unit (C), dewaters the crude oil after gravity separation further under electrostatic field;
Oil-collecting unit (D), for taking out the crude oil after dehydration.
2. a kind of crude oil electric desalting/dewatering unit according to claim 1, is characterized in that, described rectification breakdown of emulsion unit (A) comprises electrode (3), rectifying tube (4) and high voltage electric intake I (5); Be provided with insulation in described rectifying tube (4) cavity and be hung with electrode (3), described electrode (3) is connected to power supply; When the tube wall ground connection of described electrode (3) energising, described rectifying tube (4), strong alternating-electric field in described rectifying tube (4) is formed.
3. a kind of crude oil electric desalting/dewatering unit according to claim 1, it is characterized in that, described electrostatic separation unit (C) comprises interfacial meter (6), insulating suspension (7), electrode beam (8), high voltage electric intake II (9), compound electrode (10), sand collecting hopper (13) and water out (14); Wherein,
Compound electrode (10), for connecting power supply and form electrostatic field in the tank body (1) of described electrostatic separation unit (C); Described power supply is pulse, interchange or direct current;
Sand collecting hopper (13), for discharging described tank body (1) by the solid particulate matter be settled out in crude oil;
Water out (14), for discharging described tank body (1) by the water separated from crude oil.
4. a kind of crude oil electric desalting/dewatering unit according to claim 3, it is characterized in that, described compound electrode (10) comprises the different multiple electrodes of length, and the upper end of described multiple electrode is separately fixed at the different positions on two electrode beams (8); Described compound electrode (10) is connected to power supply respectively by two described electrode beams (8); Described compound electrode (10) is for being parallel to the axial multiple-layer horizontal battery lead plate of described tank body (1).
5. a kind of crude oil electric desalting/dewatering unit according to claim 3, it is characterized in that, described compound electrode (10) comprises the different multiple electrodes of length, and the upper end of described multiple electrode is separately fixed at the different positions on two electrode beams (8); Described compound electrode (10) is connected to power supply respectively by two described electrode beams (8); Described compound electrode (10) is for being parallel to the axial multiple-layer horizontal battery lead plate of described tank body (1); Described compound electrode (10) is coaxial with tank body (1) or out-of-alignment annular electro pole plate.
6. a kind of crude oil electric desalting/dewatering unit according to claim 3, it is characterized in that, bottom in described tank body (1) is provided with sand clean out pipe (15), and described sand clean out pipe (15) can will be deposited on the solid particulate matter punching of described tank body (1) bottom to sand collecting hopper (13).
7. a kind of crude oil electric desalting/dewatering unit according to claim 1, is characterized in that, described oil-collecting unit (D) comprises the crude exports (11) be arranged on described tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753934.2U CN204999857U (en) | 2015-09-25 | 2015-09-25 | Crude oil electro -desalting dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753934.2U CN204999857U (en) | 2015-09-25 | 2015-09-25 | Crude oil electro -desalting dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204999857U true CN204999857U (en) | 2016-01-27 |
Family
ID=55156754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753934.2U Withdrawn - After Issue CN204999857U (en) | 2015-09-25 | 2015-09-25 | Crude oil electro -desalting dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204999857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825265A (en) * | 2019-04-23 | 2020-10-27 | 中国石油化工股份有限公司 | Oilfield produced water treatment method |
-
2015
- 2015-09-25 CN CN201520753934.2U patent/CN204999857U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825265A (en) * | 2019-04-23 | 2020-10-27 | 中国石油化工股份有限公司 | Oilfield produced water treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103695029A (en) | High-frequency electric collective oil-gas-water three-phase flow separator | |
| CN102021018A (en) | Novel and efficient electrostatic pre-coalescence method and device applied to dehydration and desalt of crude oil | |
| CN102021019A (en) | Novel high-efficiency crude oil electric dehydration and desalination method and equipment | |
| CN102021020A (en) | Dielectrophoresis demulsification mechanism-based novel crude oil electric dehydration and desalination method and equipment | |
| CN111825174B (en) | Demulsification device and method for oil-in-water emulsion | |
| CN202530047U (en) | Electric dehydration device for crude oil | |
| CN102732296A (en) | High water-content crude oil electrostatic dehydration device | |
| CN203329419U (en) | Three-phase cross current static oil-water separating device | |
| CN208200865U (en) | It is a kind of for pre-processing the combined type electric field demulsification and dehydration device of waste oil emulsion | |
| CN208726806U (en) | Pipe type oil-water separator | |
| CN108686400A (en) | A kind of double field cross-flow coalescence oily-water seperating equipments | |
| CN112505302A (en) | Continuous-flow electric field and medium synergistic coalescence demulsification effect evaluation system | |
| CN201501844U (en) | Novel efficient static pre-coalescence equipment for dehydration and desalination of crude oil | |
| CN104893754A (en) | Diesel oil dewatering device | |
| CN204999857U (en) | Crude oil electro -desalting dewatering device | |
| CN203820721U (en) | Crude oil heating and dehydration device | |
| CN105176578A (en) | Crude oil electrical desalting and dewatering device and method | |
| CN201501846U (en) | Novel crude oil electric dehydration and desalination apparatus based on dielectrophoresis demulsification mechanism | |
| CN103937532B (en) | Heating crude oil dewater unit and method | |
| CN106032473A (en) | High-frequency electric coalescence type high-efficiency oil-gas-water three-phase separator | |
| CN201102912Y (en) | Sewage treating and oil removing device | |
| CN207016726U (en) | High water-content crude oil purifier and high water-content crude oil cleaning system | |
| CN201501845U (en) | Novel efficient electric crude oil dehydration and desalination equipment | |
| CN104807626B (en) | A kind of real liquid stream moves electric dehydrator evaluating apparatus | |
| CN204474604U (en) | High-frequency electrical coagulation type efficient oil-gas-water separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20180601 |