CN106318442A - Sump oil purifying device and method - Google Patents
Sump oil purifying device and method Download PDFInfo
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- CN106318442A CN106318442A CN201610698516.7A CN201610698516A CN106318442A CN 106318442 A CN106318442 A CN 106318442A CN 201610698516 A CN201610698516 A CN 201610698516A CN 106318442 A CN106318442 A CN 106318442A
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- Prior art keywords
- oil
- crude oil
- water
- pipe
- distribution pipe
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/06—Separation of liquids from each other by electricity
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/02—Dewatering or demulsification of hydrocarbon oils with electrical or magnetic means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
Abstract
The invention relates to the field of sump oil treatment in environment protection industry and relates to sump oil purifying device and method for the sump oil of oil fields and oil refineries. The sump oil purifying device has the advantages that crude oil contacts with water in a reverse manner, small oil drops in the water contact with a crude oil phase layer along with the water during sedimentation, the small oil drops are absorbed by the crude oil phase layer so as to be removed from the water, the small oil drops enter an insulating electric field during the rising of the crude oil, the residual moisture in the crude oil is removed through coalescence dewatering by the insulating electric field, the water content, salt content and the content of other impurities of the separated crude oil are reduced greatly, the separated crude oil can be recycled directly, the storage space of the recycled crude oil is reduced, the oil content and salt content of the separated water are reduced greatly at the same time, pollution, caused by the separated water, to external environments can be lowered, and sewage treatment pressure and environment destruction are reduced.
Description
Technical field
The present invention relates to sump oil process field in chemical industry environmental protection industry, relate to a kind of for oil field and the one of dirty oil of oil refinery
Plant sump oil purification processing means and purifying treatment method.
Background technology
Can produce substantial amounts of sump oil in oil exploitation and the course of processing, these sump oils are directly discharged in environment, it will
Environment is caused greatly harm, causes the wasting of resources simultaneously, thus reuse after must processing.The most common sump oil
Including the lubricating oil in mechanical processing process, machinery sump oil；From oil field, refinery, boats and ships or the landing oil of other industrial sites,
Waste oil；In Oil & Gas Storage from oil field, refinery or other industry crude oil storage pool, the greasy filth of gravity separator tank bottom deposit；Oil
Mud separation and recovery and tank cleaning produce liquid, containing sump oil water etc..
Sump oil complicated component, containing more electrolyte, good stability, generally uses the method for sedimentation crude separation of heating to process,
After process, the water content of sump oil is less than 10%.Although the method can process sump oil cost-effectively, but long owing to processing the time
Efficiency is low, process after sump oil water content height cause the factors such as reuse difficulty is big, thus also need high-efficient treatment method and equipment.
CN201334378Y has invented hydrous heavy dirty oil treatment device in oil field by static mixer, heater and surge tank
Pump is constituted.Being provided with feed(raw material)inlet a on static mixer, static mixer is connected with heater line, heater and ultrasound wave
Treating column pipeline connects, and the upper outlet of ultrasonic Treatment tower is connected with buffering oil tank pipeline, buffers oil tank through pump and electric dehydration
Device connects, and the lower part outlet of ultrasonic Treatment tower is connected with buffering water pot pipeline, and the upper outlet of buffering water pot is connected with pipeline.
This patent uses ultrasound wave that sump oil is carried out breakdown of emulsion process, makes sump oil carry out profit initial gross separation, but the effect separated and efficiency
Relatively low, after process, sump oil is difficult to direct freshening.
CN201268599Y proposes a kind of dirty oil treatment device.Wherein: contaminated-oil basin 1 pipeline, valve and pump respectively with mistake
Filter 2,3, one section of heat exchanger 4 of surge tank, two-stage nitration heat exchanger 5, electric power hot oil furnace 6, two phase separator 7, three phase separator 8, add
Medicine-chest 9 is connected.
CN203112760U proposes a kind of dirty oil treatment device, and including filter, described filter is by pipeline successively
With heat exchanger, proportioning pump, sump oil processor, desilt tank, initial separator, final separator are connected.Described initial separator
For multiple.Described initial separator is sequentially connected with leads to final separator, described initial separator by pump, pipeline, valve with
Defecator connects, and described defecator is connected with sump oil processor.Described proportioning pump, defecator pass through pipeline and add respectively
Medicine-chest connects.
Due to sump oil complicated component, stability is high, and above-mentioned patent uses this settlement separate mode separating effect less to manage
Thinking, requiring time for longer, after separation, crude oil water containing is the highest, it is difficult to direct reuse, needs again to carry out processed.
Summary of the invention
It is an object of the invention to provide a kind of sump oil purification processing means and purifying treatment method, this device can separate
Water content in crude oil out is lower, salinity less, and crude oil can directly recycle, the water oil content simultaneously discharged and saliferous
Amount is less, reduces the pressure to sewage disposal, reduces the destruction to environment.
For achieving the above object, the present invention provides techniques below scheme: a kind of sump oil purification processing means, including: three-phase
Centrifugal separator and gun barrel, described three phase centrifugation seperator is provided with feed pipe, oil drain out, discharge outlet and solid row
Mouthful, described gun barrel includes outlet, oil-out, the first distribution pipe and the second distribution pipe, and described oil-out is located at described
The upper end of gun barrel, described outlet is positioned at the lower end of described gun barrel；Insulation is formed in described gun barrel
Electric field, described first distribution pipe is positioned at described insulation electric field, and described second distribution pipe is positioned at the downside of described insulation electric field, institute
Stating discharge outlet to be connected with described first distribution pipe by pipeline, described oil drain out is connected with described second distribution pipe by pipeline.
The dirty oil treatment device that the present invention provides, uses three phase centrifugation seperator and gun barrel to carry out sump oil tentatively
Separating, discharged by the fixing impurity in sump oil, the crude oil concurrently separating out and water enter the second distribution pipe by pipeline respectively
With in the first distribution pipe, the water level in such gun barrel is in the downside of crude oil, owing to the density of crude oil is less than water, the most former
The bottom-up motion of oil, water from up to down move, and crude oil is with watery vomiting to contacting, and the medium and small oil droplet of water contacts during dropping along with water precipitating
To crude oil phase layer, little oil droplet is removed by the absorption of crude oil phase layer, can also wash away in the solid impurity in crude oil and crude oil simultaneously
Salt, after crude oil rises and reaches insulated electro field areas, make water droplet deform and produce electrostatic under the effect of insulation electric field
Power, thus promote water droplet to overcome the obstacle of emulsifying film to be agglomerated into the water droplet that particle diameter is bigger each other, in crude oil settlement separate go out
Come, reduce the water content in crude oil further.Compared with existing effluent oil treatment equipment, the sump oil purification that the application provides processes
Device can reduce recovery water content in crude oil, salinity, can directly freshening, minimizing recovery crude storage space, reduction draining
Middle oil content, reduces the pressure to sewage disposal, reduces the destruction to environment.
Further, it is provided with the first insulating electrode in described gun barrel and is positioned on the downside of described first insulating electrode
Second insulating electrode, forms described insulation electric field, described first distribution between described first insulating electrode and the second insulating electrode
Pipe is between the first insulating electrode be arrangeding in parallel and the second insulating electrode, and is parallel to described first insulating electrode.
Further, the upper end of described gun barrel is additionally provided with transformator, described first insulating electrode and the second insulation
Electrode outfan with described transformator respectively is connected.
Further, described first insulating electrode and the second insulating electrode all for by thoroughly doing away with what edge electrode stem combined more
Plane electrode, insulating electrode bar is that surface recombination has the metal tube by insulant or metallic rod.
Further, described first insulating electrode and the second insulating electrode are grid-like.
Further, the position being positioned at tank deck in described gun barrel is provided with crude oil collection pipe, described oil-out and institute
Stating the connection of crude oil collection pipe, described outlet connects with the purification water layer being positioned at described oil-water separation pot bottom.
Further, emulsified liquid collection pipe, described emulsified liquid collection it are provided with in the emulsifying liquid layer in described gun barrel
Pipe is connected with described feed pipe by reflux line, and described reflux line is provided with reflux pump.
Further, described first distribution pipe and the second distribution pipe are the biexhaust pipe of closed at both ends, in described biexhaust pipe
Formed accommodate chamber, described biexhaust pipe radially offer the through hole that multiple and described receiving chamber connects, multiple described through hole edges
Axially forming a line of described biexhaust pipe.
Further, the distance between described second distribution pipe and described second insulating electrode is more than or equal to 50mm；Described
Distance between first insulating electrode and the second insulating electrode is all higher than equal to 50mm.
Present invention also offers a kind of sump oil purification processing method, use the sump oil purification described in any of the above-described item to process dress
Put, comprise the following steps:
S1, is heated to more than 40 DEG C by sump oil, adds to three phase centrifugation seperator through feed pipe；
S2, the crude oil separated through three phase centrifugation seperator entered in the second distribution pipe by oil drain out and pipeline,
The water separated is entered in the first distribution pipe by discharge outlet and pipeline；
S3, enters the crude oil in the second distribution pipe by the downside of insulation electric field in the second distribution pipe entrance gun barrel
Bottom-up motion, the water simultaneously entered in the first distribution pipe enters the insulation electric field in gun barrel by the first distribution pipe
The most from up to down moving, crude oil is with watery vomiting to contacting, and the little oil droplet in water touches crude oil phase layer along with water in infall process,
Little oil droplet is removed from water by the absorption of crude oil phase layer；Enter in crude oil again uphill process in insulation electric field, through absolutely simultaneously
The coalescence dehydration of edge electric field, remaining moisture in removing crude oil；
S4, the crude oil after dehydration discharged by oil drain out, and the water after oil removing, after the bottom of gun barrel settles, passes through
Discharge outlet is discharged.
The present invention provide sump oil purification processing method, crude oil with watery vomiting to contacting crude oil with watery vomiting to contacting, in water
Little oil droplet touches crude oil phase layer along with water in infall process, and little oil droplet is removed, simultaneously by the absorption of crude oil phase layer from water
Crude oil again uphill process enter in insulation electric field, be dehydrated through insulation electric field coalescence, remaining moisture in removing crude oil, this
Water content, salinity and other impurity in the crude oil that sample is finally recovered out are all greatly reduced, and therefore separate
Crude oil can directly recycle, and reduces and reclaims crude storage space, the oil content in the water concurrently separating out and salinity
Also be greatly reduced, therefore, it is possible to reduce the pollution of water environment to external world separated, reduce the pressure to sewage disposal and
Destruction to environment.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the sump oil purification processing means described in the embodiment of the present invention.
Reference:
1-three phase centrifugation seperator；11-feed pipe；12-oil drain out；
13-discharge outlet；14-solid row's mouth；2-gun barrel；
21-outlet；22-oil-out；23-first distributes pipe；
24-second distributes pipe；25-the first insulating electrode；26-the second insulating electrode；
27-crude oil collection pipe；28-emulsified liquid collection pipe；29-reflux pump；
3-transformator.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described enforcement
Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
As it is shown in figure 1, the invention provides a kind of sump oil purification processing means, including: three phase centrifugation seperator 1 and profit
Knockout drum 2, described three phase centrifugation seperator 1 is provided with feed pipe 11, oil drain out 12, discharge outlet 13 and solid row's mouth 14, institute
Stating gun barrel 2 and include that outlet 21, oil-out 22, first distribute pipe 23 and the second distribution pipe 24, described oil-out 22 sets
In the upper end of described gun barrel 2, described outlet 21 is positioned at the lower end of described gun barrel 2；Described gun barrel 2
The interior insulation electric field that formed, described first distribution pipe 23 is positioned at described insulation electric field, described second distribution pipe 24 be positioned at described absolutely
The downside of edge electric field, described discharge outlet 13 is connected with described first distribution pipe 23 by pipeline, and described oil drain out 12 passes through pipeline
Connect with described second distribution pipe 24.
The dirty oil treatment device that the present invention provides, at the beginning of using three phase centrifugation seperator 1 and gun barrel 2 to carry out sump oil
Step separates, and sump oil isolates crude oil, water, solid impurity under the centrifugal action that three phase centrifugation seperator 1 high speed rotating produces,
By easily making the crude oil generation solid impurity of emulsifying, segment polarity material be separated by centrifuge, use three phase centrifugation simultaneously
Seperator 1 is compared with settlement separate mode, and it is in hgher efficiency that it separates, and concurrently separate divides for crude oil, water, solid impurity
From effect more preferable.
After being discharged by the fixing impurity in sump oil, the water content in crude oil that initial gross separation simultaneously goes out is the highest, contain in water
Having of having is also the most more with salt impurity, and crude oil can not directly recycle, water discharge after can to environment, because of
This also needs to process further；Therefore initial gross separation crude oil out and water are entered the second distribution by pipeline by the application respectively
In pipe 24 and the first distribution pipe 23, the first distribution pipe 23 is positioned at the upside of described second distribution pipe 24, in such gun barrel 2
Water level in the downside of crude oil, owing to the density of crude oil is less than water, the therefore bottom-up motion of crude oil, water from up to down move,
Crude oil is with watery vomiting to contacting, and the medium and small oil droplet of water touches crude oil phase layer during dropping along with water precipitating, and little oil droplet is inhaled by crude oil phase layer
Attached and remove, the solid impurity in crude oil and the salt in crude oil can also be washed away simultaneously, crude oil rises and reaches insulated electro place
Behind territory, make water droplet deform under the effect of insulation electric field and produce electrostatic force, thus promoting water droplet to overcome the barrier of emulsifying film
Hinder and be agglomerated into the water droplet that particle diameter is bigger each other, in crude oil settlement separate out, reduce further the water content in crude oil.With
Existing effluent oil treatment equipment is compared, and the sump oil purification processing means that the application provides can reduce recovery water content in crude oil, contain
Salt amount, can direct freshening, reduce and reclaim crude storage space, reduce oil content in draining, reduce the pressure to sewage disposal,
Reduce the destruction to environment.The present invention uses centrifugation to separate, with electrostatic coalescence, the mode of combining and processes sump oil, can make back
The water content in crude oil received is reduced to less than 10%, has obtained the crude oil purified, can directly carry out freshening without purifying again
Process.
Preferably, as it is shown in figure 1, be provided with the first insulating electrode 25 in described gun barrel 2 and be positioned at described first exhausted
The second insulating electrode 26 on the downside of edge electrode 25, formed between described first insulating electrode 25 and the second insulating electrode 26 described absolutely
Edge electric field, described first distribution pipe 23 is between the first insulating electrode 25 and the second insulating electrode 26 be arrangeding in parallel, and puts down
Row, in described first insulating electrode 25, is additionally provided with transformator 3, described first insulation simultaneously in the upper end of described gun barrel 2
Electrode 25 with the second insulating electrode 26 respectively outfan with described transformator 3 be connected；Preferably, the high pressure of described transformator 3
The voltage of outfan output should be greater than 5000v, the first insulating electrode 25 and the second insulating electrode 26 being so connected with transformator 3
Between can produce sufficiently large High-Voltage Insulation electric field, enter after high voltage electric field at crude oil, make under the effect of insulation electric field
Water droplet deforms and produces electrostatic force, thus promotes water droplet to overcome the obstacle of emulsifying film to be agglomerated into the water that particle diameter is bigger each other
Drip, in crude oil settlement separate out, reduce further the water content in crude oil.
The insulation electrostatic field using insulating electrode to be formed can avoid sump oil water content height, emulsifier to cause short circuit more,
Be conducive to the application of electrostatic field coalescence high-efficiency dehydration technology, so that the crude oil separated is dehydrated by electrostatic coalescence, drop further
Low water content in crude oil, makes the crude oil of recovery obtain more valuable use.Low by crude oil feeding position and abjection water feeds
High mode, forms water and contacts with the reverse of crude oil, can wash away the solid impurity in crude oil and the salt in crude oil, play height
The effect of effect desalination removing impurities matter.
It is between the first insulating electrode 25 and the second insulating electrode 26, to form insulation electric field in the present embodiment, it is to be understood that
, can also be that insulating electrode forms electric field with tank skin or water layer in the present embodiment, be capable of equally passing through insulated electro
The purpose of field dehydration, its objective, without departing from the design philosophy of the present invention, should belong to protection scope of the present invention.
Preferably, described first insulating electrode 25 and the second insulating electrode 26 all for combining by thoroughly doing away with edge electrode stem more
Plane electrode, insulating electrode bar is that surface recombination has the metal tube by insulant or metallic rod；The most multiple described insulation
Electrode stem is mutually combined and constitutes the first grid-like insulating electrode 25 and the second insulating electrode 26, the first grid-like insulating electrode
25 and second insulating electrode 26 enable to crude oil and water and entered in High-Voltage Insulation electric field or from High-Voltage Insulation by described electrode
Electric field is gone out, it is possible to ensure being smoothed out of dehydration, desalination and removing oil.
Certainly, described first insulating electrode 25 and the second insulating electrode 26 can also be other structure, such as described first
Insulating electrode 25 and the second insulating electrode 26 are tabular, are provided with multiple passing through on the first insulating electrode 25 and the second insulating electrode 26
Wear the through hole of thickness direction, described water and crude oil to be flowed up and down by described through hole, be capable of the mesh of the application equally
's.
As it is shown in figure 1, the position being positioned at tank deck in described gun barrel 2 is provided with crude oil collection pipe 27, described oil-out
22 connect with described crude oil collection pipe 27, and described outlet 21 connects with the purification water layer being positioned at bottom described gun barrel 2,
The crude oil separated is collected by crude oil collection pipe 27, and then the oil drain out 12 by connecting with crude oil collection pipe 27 is discharged,
Reclaim；Owing to the density of water is relatively big, therefore water is after carrying out oil-water separation, is settled down to the bottom of gun barrel 2, heavy
After fall a period of time, the bottom in gun barrel 2 forms one layer and purifies water layer, and described purification water layer connects with outlet 21,
Discharged by outlet 21；Also set also one layer of emulsifying liquid layer of formation simultaneously in the upside of described purification water layer and (be oil mixing with water
Layer), it is provided with emulsified liquid collection pipe 28 in the emulsifying liquid layer in described gun barrel 2, described emulsified liquid collection pipe 28 passes through
Reflux line connects with described feed pipe 11, and described reflux line is provided with reflux pump 29, so by reflux pump 29 by oil
In water separation tank 2, emulsion layer is circulated process, can lead to easily making the crude oil generation solid impurity of emulsifying, segment polarity material
Cross centrifuge to separate, reduce oil-water separation difficulty, reduce the thickness of gun barrel 2 internal emulsification layer simultaneously, electrostatic is gathered
Knot dehydration provides advantage, thus improves the effect of crude oil dehydration, reduces draining oil-containing.
Preferably, described first distribution pipe 23 and the second distribution pipe 24 are the biexhaust pipe of closed at both ends, described biexhaust pipe
Interior formed accommodate chamber, described biexhaust pipe radially offer the through hole that multiple and described receiving chamber connects, multiple described through holes
Along axially forming a line of described biexhaust pipe；The most described first distribution pipe 23 and the second distribution pipe 24 are all to have two tubing side by side
Connect and compose, in two coffins, be respectively formed described receiving chamber, simultaneously being radially provided with of outer surface of two described tubing
The through hole in multiple connection receiving chambeies, the most multiple described through hole axially forming a line along described biexhaust pipe, the most each described
Just being equipped with two exhausting holes on first distribution pipe 23 or the second distribution pipe 24, the water in the first distribution pipe 23 is arranged by described through hole
Going out to enter in described gun barrel 2 body, the crude oil in the second distribution pipe 24 enters oil by the through hole on the second distribution pipe 24
In water separation tank 2；The most described crude oil collection pipe 27 and emulsified liquid collection pipe 28 and first distribute pipe 23 simultaneously
Structure is identical；Alternatively, the most described tubing is pipe, and described pipe is provided with manhole, certainly described
Tubing is not limited only to circle, it is also possible to for square triangle etc., the shape of the most described through hole can also be triangle
Through hole, square through hole, trapezoidal hole or other erose through holes, be capable of the purpose of the application equally.
It should be noted that the first distribution pipe 23, second in the present invention distributes pipe 24, crude oil collection pipe 27 and emulsion
Collecting pipe 28 may not be said structure, as being only single tubing, arranges two exhausting holes etc. on described tubing simultaneously, with
Sample is capable of the purpose of the application.
Preferably, the distance between described second distribution pipe 24 and described second insulating electrode 26 is more than or equal to 50mm, institute
The distance stated between the first insulating electrode 25 and the second insulating electrode 26 is all higher than equal to 50mm, so it can be avoided that from first point
Pipe arrangement 23 current out or the second distribution pipe 24 crude oil out are to the first insulating electrode 25 or the second insulating electrode 26
The problem that impulsive force is excessive and causes the first insulating electrode 25 or the second insulating electrode 26 to damage.
Illustrate the sump oil purification processing means concrete work to sump oil purification that the application provides below in conjunction with the accompanying drawings
Make process.
First sump oil is heated to more than 40 DEG C, so it can be avoided that because the too low fluid of sump oil temperature is sticky, and cause
The problem being not easily separate in three phase centrifugation seperator 1, it is preferable that sump oil is heated to 50-70 DEG C then by charging
Pipe 11 enter three phase centrifugation seperator 1 be centrifuged separate, high speed rotating produce centrifugal action under isolate crude oil,
Water, solid impurity, isolated crude oil is the highest due to water content, also needs to process further,
Gun barrel 2 is entered near insulating electrode 3E lower part pipe arrangement 3I along tank body axial distribution by oil export 16,
The water separated is higher due to oil content, it is also desirable to process further, discharge outlet 13 enter the first distribution pipe through piping
In 23, described first distribution pipe 23 along gun barrel 2 axially arranged (the most described first distribution pipe 23 axis direction with
The axis direction of described gun barrel 2 is parallel), the crude oil after three phase centrifugation seperator 1 separates is by oil drain out 12 and pipe
Road enters in the second distribution pipe 24, and then crude oil and water are entered had liquid knockout drum by the first distribution pipe 23 and the second distribution pipe 24
Inside, be now placed in the crude oil on the downside of the second insulating electrode 26 and from bottom to top flow, and enter the first insulating electrode 25 and
Water water in the High-Voltage Insulation electric field formed between two insulating electrodes 26 flows from top to down and inversely contacts, the medium and small oil droplet of water
Touching crude oil phase layer during dropping along with water precipitating, little oil droplet is removed by the absorption of crude oil phase layer.Insulating electrode 3C and 3E and change
The high-voltage output end of depressor 3 is connected, the first insulating electrode 25 and the second insulating electrode 26 respectively be positioned on gun barrel 2
The high-voltage output end of the transformator 3 of end is connected, and the voltage of the high-voltage output end output of described transformator 3 should be greater than equal to 5000v,
Sufficiently large high pressure can be produced exhausted between the first insulating electrode 25 and the second insulating electrode 26 that are so connected with transformator 3
Edge electric field, after crude oil enters high voltage electric field, makes water droplet deform under the effect of insulation electric field and produces electrostatic force, thus
Promote water droplet to overcome the obstacle of emulsifying film to be agglomerated into the water droplet that particle diameter is bigger each other, in crude oil settlement separate out, preferably
The voltage of ground described transformator 3 high-voltage output end output is 5000v, so can either ensure to separate water from sump oil,
Low-energy loss can be dropped again；Wherein the crude oil after dehydration is through being positioned at tank body top crude oil collection pipe 27 from oil drain out 12 row
Go out, recycle.And carrying out the sedimentation of the pot bottom again of the water after oil removing, oil removing further, after oil removing, water is from tank bottoms setting
Discharge outlet 13 discharge.
In gun barrel 2, owing to sump oil is contained within substantial amounts of emulsifier, between insulating electrode and water layer often
Can have one layer of emulsifying liquid layer, emulsifying liquid layer is collected by emulsified liquid collection pipe 28 and is re-delivered to centrifuge by reflux pump 29
Before carry out circular treatment, by reflux pump 29, emulsion layer in gun barrel 2 is circulated process, can produce easily making crude oil
The solid impurity of lactogenesis, segment polarity material are separated by centrifuge, reduce oil-water separation difficulty, reduce profit simultaneously
The thickness of knockout drum 2 internal emulsification liquid layer, provides advantage, thus improves the effect of crude oil dehydration electrostatic coalescence dehydration, fall
Low draining oil-containing.
Present invention also offers a kind of sump oil purification processing method, use the sump oil purification described in any of the above-described item to process dress
Put, comprise the following steps:
S1, is heated to more than 40 DEG C by sump oil, adds to three phase centrifugation seperator 1 through feed pipe 11；
S2, the crude oil separated through three phase centrifugation seperator 1 enters the second distribution pipe by oil drain out 12 and pipeline
24 water interior, that separate are entered in the first distribution pipe 23 by discharge outlet 13 and pipeline；
S3, the crude oil entered in the second distribution pipe 24 enters gun barrel 2 interior insulation electric field by the second distribution pipe 24
The bottom-up motion in downside, simultaneously enter water in the first distribution pipe 23 and enter gun barrel 2 by the first distribution pipe 23
From up to down moving in interior insulation electric field, crude oil is with watery vomiting to contacting, and the little oil droplet in water connects in infall process along with water
Contacting crude oil phase layer, little oil droplet is removed from water by the absorption of crude oil phase layer；In crude oil again uphill process, enter insulation simultaneously
In electric field, through insulation electric field coalescence dehydration, remaining moisture in removing crude oil；
S4, the crude oil after dehydration discharged by oil drain out 12, the water after oil removing after the bottom of gun barrel 2 settles,
Discharged by discharge outlet 13.
The present invention provide sump oil purification processing method, crude oil with watery vomiting to contacting crude oil with watery vomiting to contacting, in water
Little oil droplet touches crude oil phase layer along with water in infall process, and little oil droplet is removed, simultaneously by the absorption of crude oil phase layer from water
Crude oil again uphill process enter in insulation electric field, be dehydrated through insulation electric field coalescence, remaining moisture in removing crude oil, this
Water content, salinity and other impurity in the crude oil that sample is finally recovered out are all greatly reduced, and therefore separate
Crude oil can directly recycle, and reduces and reclaims crude storage space, the oil content in the water concurrently separating out and salinity
Also be greatly reduced, therefore, it is possible to reduce the pollution of water environment to external world separated, reduce the pressure to sewage disposal and
Destruction to environment.
In sum, three phase centrifugation seperator and gun barrel is used sump oil to be carried out initial gross separation, by sump oil
Fixing impurity is discharged, and the crude oil concurrently separating out and water enter in the second distribution pipe and the first distribution pipe by pipeline respectively,
So the water level in gun barrel is in the downside of crude oil, owing to the density of crude oil is less than water, the therefore bottom-up motion of crude oil,
Water from up to down moves, and crude oil is with watery vomiting to contacting, and the medium and small oil droplet of water touches crude oil phase layer, little oil during dropping along with water precipitating
Dripping and removed by the absorption of crude oil phase layer, can also wash away the solid impurity in crude oil and the salt in crude oil simultaneously, crude oil rises
After reaching insulated electro field areas, make water droplet deform under the effect of insulation electric field and produce electrostatic force, thus promoting water droplet
Overcome the obstacle of emulsifying film to be agglomerated into the water droplet that particle diameter is bigger each other, in crude oil settlement separate out, reduce further former
Water content in oil.Compared with existing effluent oil treatment equipment, the sump oil purification processing means that the application provides can reduce back
Receive water content in crude oil, salinity, can direct freshening, reduce and reclaim crude storage space, oil content in reduction draining, it is right to reduce
The pressure of sewage disposal, reduces the destruction to environment.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
Invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it is still
Technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is carried out
Equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. a sump oil purification processing means, it is characterised in that including: three phase centrifugation seperator and gun barrel, described three
Be provided with on phase centrifugal separator feed pipe, oil drain out, discharge outlet and solid row mouth, described gun barrel include outlet,
Oil-out, the first distribution pipe and the second distribution pipe, described oil-out is located at the upper end of described gun barrel, described outlet position
Lower end in described gun barrel；Form insulation electric field in described gun barrel, described first distribution pipe be positioned at described absolutely
In edge electric field, described second distribution pipe is positioned at the downside of described insulation electric field, described discharge outlet by pipeline with described first point
Pipe arrangement connects, and described oil drain out is connected with described second distribution pipe by pipeline.
Sump oil purification processing means the most according to claim 1, it is characterised in that be provided with first in described gun barrel
Insulating electrode and be positioned at the second insulating electrode on the downside of described first insulating electrode, described first insulating electrode and the second insulated electro
Forming described insulation electric field between pole, described first distribution pipe is positioned at the first insulating electrode and the second insulating electrode be arrangeding in parallel
Between, and it is parallel to described first insulating electrode.
Sump oil purification processing means the most according to claim 2, it is characterised in that: the upper end of described gun barrel also sets
Having transformator, described first insulating electrode and the second insulating electrode outfan with described transformator respectively is connected.
Sump oil purification processing means the most according to claim 2, it is characterised in that described first insulating electrode and second exhausted
Edge electrode all for by thoroughly doing away with the plane electrode that edge electrode stem combines more, and insulating electrode bar is that surface recombination has by insulant
Metal tube or metallic rod.
Sump oil purification processing means the most according to claim 4, it is characterised in that described first insulating electrode and second exhausted
Edge electrode is grid-like.
Sump oil purification processing means the most according to claim 1, it is characterised in that be positioned at tank deck in described gun barrel
Position be provided with crude oil collection pipe, described oil-out connects with described crude oil collection pipe, described outlet be positioned at described profit
Purification water layer connection bottom knockout drum.
Sump oil purification processing means the most according to claim 6, it is characterised in that the emulsion in described gun barrel
Being provided with emulsified liquid collection pipe in Ceng, described emulsified liquid collection pipe is connected with described feed pipe by reflux line, and described backflow
Pipeline is provided with reflux pump.
8. according to the sump oil purification processing means described in any one of claim 1-7, it is characterised in that described first distribution pipe and
Second distribution pipe is the biexhaust pipe of closed at both ends, is formed and accommodate chamber, radially offering of described biexhaust pipe in described biexhaust pipe
There are the through hole that multiple and described receiving chamber connects, multiple described through hole axially forming a line along described biexhaust pipe.
Sump oil purification processing means the most according to claim 2, it is characterised in that described second distribution pipe is with described second
Distance between insulating electrode is more than or equal to 50mm；Distance between described first insulating electrode and the second insulating electrode is all higher than
Equal to 50mm.
10. a sump oil purification processing method, uses the sump oil purification processing means as described in any one of claim 1-9, its
It is characterised by, comprises the following steps:
S1, is heated to more than 40 DEG C by sump oil, adds to three phase centrifugation seperator through feed pipe；
S2, the crude oil separated through three phase centrifugation seperator enters in the second distribution pipe by oil drain out and pipeline, separates
Water out is entered in the first distribution pipe by discharge outlet and pipeline；
S3, enter crude oil in the second distribution pipe by the second distribution pipe enter in gun barrel the downside of insulation electric field under
Move upward, simultaneously enter the water in the first distribution pipe interior certainly by the insulation electric field in the first distribution pipe entrance gun barrel
On move downward, crude oil is with watery vomiting to contacting, and the little oil droplet in water touches crude oil phase layer, little oil along with water in infall process
Drip and removed from water by the absorption of crude oil phase layer；Enter in crude oil again uphill process in insulation electric field, through insulated electro simultaneously
Field coalescence dehydration, remaining moisture in removing crude oil；
S4, the crude oil after dehydration discharged by oil drain out, and the water after oil removing, after the bottom of gun barrel settles, passes through draining
Mouth is discharged.
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| CN110903850A (en) * | 2019-12-09 | 2020-03-24 | 北京石油化工学院 | Crude oil electric desalting equipment and method |
| CN113275127A (en) * | 2021-06-15 | 2021-08-20 | 中国石油化工股份有限公司 | Solid particle electrostatic separation device and method |
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| CN106318442B (en) | 2018-06-26 |
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