CN204939403U - The integrated dewatering unit of crude oil with poor quality - Google Patents
The integrated dewatering unit of crude oil with poor quality Download PDFInfo
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- CN204939403U CN204939403U CN201520543762.6U CN201520543762U CN204939403U CN 204939403 U CN204939403 U CN 204939403U CN 201520543762 U CN201520543762 U CN 201520543762U CN 204939403 U CN204939403 U CN 204939403U
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Abstract
The utility model discloses the integrated dewatering unit of a kind of crude oil with poor quality, this integrated dewatering unit comprises tank body, the two opposite side walls of tank body is respectively arranged with fluid entrance and fluid outlet; Is formed successively from fluid entrance to fluid Way out in tank body: neutralization &washing chamber, for the hybrid reaction of alkaline processing liquid and crude oil, to remove the acid in crude oil, solid particulate and chemical additive; Ultrasonic wave deposition dehydrating chamber, utilizes emulsion splitter and ultrasonic wave to crude oil demulsification dehydration; Electro-dewatering chamber, inside be formed can by the small water droplets coalescence in crude oil and with the electric field of crude separation, to realize deep dehydration; Sedimentation chamber; For separating of the crude oil after dehydration, the crude oil after dehydration discharges tank body by fluid outlet.The integrated dewatering unit of crude oil with poor quality of the present utility model significantly can improve the dehydration rate of crude oil with poor quality, reduces the filling rate of emulsion splitter, shortens crude oil with poor quality dewatering time, saves process energy consumption and processing cost.
Description
Technical field
The utility model relates to a kind of crude dehydrating plant, particularly relates to the integrated dewatering unit for dewatering to the crude oil with poor quality containing acid, solid particulate and chemical additive.
Background technology
In the recovery process of oil field Xin Jing, old well, due to the enforcement of drilling well, acidifying, pressure break, water plugging and profile controlling, chemical viscosity reduction, chemical Paraffin Removal, bituminous matter de-plugging process, need to add acid solution, fracturing liquid, mud silt lost fluid, oil well return discharge opeing etc. early stage.These operation raffinates can form the milk sap of extremely difficult breaking emulsion and dewatering with the Surface Active Substance in in-place oil, thus form crude oil with poor quality.
That commonly uses at present mainly contains following three kinds to the method that crude oil with poor quality dewaters,
One is chemical dehydration method: chemical dehydration method is method the most frequently used in dehydrating of crude oil technology, and the method is widely used, technology maturation; Major way due to the method process crude oil with poor quality is by adding a large amount of chemical dehydration medicaments, and increase dehydration temperaturre and extend the dehydration settling time, thus the treatment time is long, cost is high, has certain limitation.In addition, the dehydrating effect of the crude oil with poor quality that this method is large to acid content, solid particulate is more is not good.
Two is supersonic dewatering methods: supersonic dewatering method is the gathering utilizing ultrasonic cavitation effect and mechanical vibration effect to promote emulsion-particles, thus accelerates oily water separation; But when crude oil water content is lower, ultrasonic wave is less to dehydrating of crude oil effect, even easily there is the phenomenon that emulsification is serious.
Three is EDNs: EDN utilizes electric field to be assembled by the small water droplet with electric charge, promotes oily water separation; This kind of method often cannot set up electric field because the water content in crude oil with poor quality is higher.
In sum, conventional dehydrating of crude oil technology can not be reduced to moisture for crude oil with poor quality the standard meeting diplomatic crude oil, and moisture higher crude oil can bring harm to refinery system, as increased the gas phase load of tower, cause operation fluctuation, can cause time serious and rush tower accident.Therefore, for the dehydration of the crude oil with poor quality containing acid, particulate matter and chemical additive be the difficult problem of present stage dehydrating of crude oil process.
Summary of the invention
For solving above-mentioned the problems of the prior art, the utility model provides a kind of acid can effectively removed in crude oil with poor quality, solid particulate and chemical additive, and carries out the integrated dewatering unit of crude oil with poor quality of high-efficiency dehydration to crude oil with poor quality.
For achieving the above object, the concrete technical scheme of the integrated dewatering unit of crude oil with poor quality of the present utility model is as follows:
The integrated dewatering unit of a kind of crude oil with poor quality, comprising: tank body, the two opposite side walls of tank body is respectively arranged with fluid entrance and fluid outlet; Is formed successively from fluid entrance to fluid Way out in tank body: neutralization &washing chamber, for the hybrid reaction of alkaline processing liquid and crude oil, to remove the acid in crude oil, solid particulate and chemical additive; Ultrasonic wave deposition dehydrating chamber, utilizes emulsion splitter and ultrasonic wave to crude oil demulsification dehydration; Electro-dewatering chamber, inside be formed can by the small water droplets coalescence in crude oil and with the electric field of crude separation, to realize deep dehydration; Sedimentation chamber; For separating of the crude oil after dehydration, the crude oil after dehydration discharges tank body by fluid outlet.
Further, neutralization &washing chamber, ultrasonic wave deposition dehydrating chamber, electro-dewatering chamber and sedimentation chamber are formed by being positioned at the spaced polylith vertical baffle isolation of tank body inner bottom part.
Further, fluid entrance and fluid outlet are separately positioned on along in the two opposite side walls of tank body axis direction, and fluid entrance is used for adding crude oil and alkaline processing liquid in tank body.
Further, tank body top in ultrasonic wave deposition dehydrating chamber is provided with ultrasonic generator, tank body top between ultrasonic generator and the first baffle plate is also provided with the emulsion splitter entrance for adding emulsion splitter, carries out breaking emulsion and dewatering to utilize emulsion splitter and ultrasonic wave to crude oil.
Further, ultrasonic generator lower surface has multiple to each other apart from uniform sounding head, tank base immediately below ultrasonic generator is provided with overflow post, the upper surface area of overflow post is corresponding with ultrasonic generator lower surface, is subject to ultrasonication fully to make the crude oil flow through below ultrasonic generator.
Further, be provided with immediately below emulsion splitter entrance for promoting emulsion splitter and the well-mixed agitator of crude oil.
Further, be provided with the electrode assemblie be made up of perpendicular to the battery lead plate of tank base polylith in electro-dewatering chamber, the electric field produced between polylith battery lead plate can carry out deep dehydration to crude oil.
In addition, neutralization &washing chamber, ultrasonic wave deposition dehydrating chamber, electro-dewatering chamber and the interior corresponding tank base of sedimentation chamber can be provided with the water shoot for discharging alkaline processing liquid waste liquid and solid particulate.
Further, the integrated dewatering unit of this crude oil with poor quality also comprises and being arranged on tank body for detecting the liquid level sensor of crude oil liquid level in tank body.
Further, the sidewall of tank body is provided with manhole, passes in and out tank body overhaul the integrated dewatering unit of crude oil with person easy to use.
The integrated dewatering unit of crude oil with poor quality of the present utility model significantly can improve the dehydration rate of crude oil with poor quality, reduces the filling rate of emulsion splitter, shortens the dewatering time of crude oil with poor quality, saves process energy consumption and processing cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, wherein:
Fig. 1 is the structural representation of the integrated dewatering unit of crude oil with poor quality of the present utility model;
Fig. 2 is the structural representation of electrode assemblie in the integrated dewatering unit of crude oil with poor quality of the present utility model.
Embodiment
In order to understand the purpose of this utility model, structure and function better, below in conjunction with accompanying drawing, further detailed description is done to the integrated dewatering unit of a kind of crude oil with poor quality of the present utility model.
As shown in Figure 1, the integrated dewatering unit of crude oil with poor quality of the present utility model comprises tank body, and tank body can cylindrical or cuboid, and tank body has bottom, top and sidewall; The two opposite side walls of tank body is respectively arranged with fluid entrance 26 and fluid outlet 16; Fluid entrance 26 and fluid outlet 16 to be preferably arranged on tank body the middle part of two opposite side walls 15 in the axial direction, and fluid entrance 26 can be used in tank body, add crude oil and alkaline processing liquid, and fluid outlet 16 is for discharging the crude oil through processed.
In reality, the mode adding crude oil and alkaline processing liquid in tank body can have multiple, lift pump 3 is such as utilized to pump into, the end that pumps of lift pump 3 is connected with fluid entrance 26, the end that pumps into of lift pump 3 is connected with alkaline processing liquid inlet pipeline 2 with crude oil import pipeline 1, and the natural flow mode of crude oil also can be utilized to enter tank body.
Export 16 directions from fluid entrance 26 to fluid in tank body to be formed successively: neutralization &washing chamber 4, for the hybrid reaction of alkaline processing liquid and crude oil, to remove the acid in crude oil, solid particulate and chemical additive; Ultrasonic wave deposition dehydrating chamber 22, utilizes emulsion splitter and ultrasonic wave to crude oil demulsification dehydration; Electro-dewatering chamber 12, inner formation electric field, electric field can make the little water droplet in crude oil overcome the obstacle of emulsifying film and be agglomerated into the larger water droplet of particle diameter each other, and separates in crude oil, to carry out deep dehydration to crude oil; Sedimentation chamber 14; For separating of the crude oil after dehydration, the crude oil after dehydration discharges tank body by fluid outlet 16.
More specifically, the generation type of each chamber is as follows, tank body inner bottom part is provided with the baffle plate of polylith perpendicular to tank base, and baffle plate is spaced to isolate multiple separate chamber processed crude oil with poor quality, to remove acid in crude oil with poor quality, chemical additive, solid particulate and water.
Above-mentioned polylith baffle plate is at least 3 pieces, to isolate at least 4 separate chamber; In the present embodiment, baffle number is 3 pieces, and is the first baffle plate 5, second baffle 9, third gear plate 13 from the direction of fluid entrance 26 to fluid outlet 16 by baffle plate number consecutively.Wherein, neutralization &washing chamber 4 is formed between the first baffle plate 5 and the tank wall at fluid entrance 26 place, ultrasonic wave deposition dehydrating chamber 22 is formed between first baffle plate 5 and second baffle 9, form electro-dewatering chamber 12 between second baffle 9 and third gear plate 13, between the tank wall in third gear plate 13 and fluid exit, form sedimentation chamber 14.
In addition, the bottom in each chamber of tank body optionally arranges water shoot, to get rid for the treatment of solution waste liquid.Preferably, in neutralization &washing chamber 4, ultrasonic wave deposition dehydrating chamber 22, electro-dewatering chamber 12 and sedimentation chamber 14, corresponding tank base is provided with first row water pipe 25, second row water pipe the 21, three water shoot the 19, four water shoot 17 successively; From neutralization &washing chamber 4, ultrasonic wave deposition dehydrating chamber 22, electro-dewatering chamber 12, sedimentation chamber 14 is isolated is dissolved with chemical additive, and the treatment solution waste liquid of acid or solid particulate can be discharged respectively by first, second, third and fourth water shoot 25,21,19,17 of tank base.Each water shoot all with valve, to control the switch of water shoot and to regulate the size of water shoot flow.
Below neutralization &washing chamber 4, ultrasonic wave deposition dehydrating chamber 22, electro-dewatering chamber 12, sedimentation chamber 14 are described in further detail respectively.
Formed between the tank wall of neutralization &washing chamber 4 at fluid entrance 26 place and the first baffle plate 5, crude oil with poor quality and alkaline processing liquid are joined in neutralization &washing chamber 4, in alkaline processing liquid, optionally adds alkali; After sufficiently mixing, alkaline processing liquid can in crude oil with poor quality containing the effect that acidic medium, solid particulate, chemical additive play neutralization, cleaning respectively and dissolve, after fully reaction, sedimentation layering, alkaline processing liquid waste liquid is positioned at the below of crude oil layer; And the solid particulate in crude oil with poor quality is lowered into tank base in self gravitation effect and discharges through first row water pipe 25 with treatment solution waste liquid, thus realize removing acidic substance, chemical additive and the solid particulate in crude oil with poor quality.It should be noted, the operation of above-mentioned discharge treatment solution waste liquid and solid particulate can be carried out in arbitrary water shoot.
Thus, by adding alkaline processing liquid in neutralization &washing chamber 4, the primary solids particle in crude oil with poor quality, acid and chemical additive can be removed, thus greatly reduce solid particulate, acid and chemical additive follow-up emulsion splitter or other chemical dehydration medicaments are dewatered the disadvantageous effect brought.
Do further detailed description to ultrasonic wave deposition dehydrating chamber 22 below, the crude oil with poor quality of the clean that alkalizes through neutralization &washing chamber 4 enters the ultrasonic wave deposition dehydrating chamber 22 formed between the first baffle plate 5 and second baffle 9 in the effect underflow stream of the first baffle plate 5; In the tank body section of ultrasonic wave deposition dehydrating chamber 22 correspondence, tank body top is provided with ultrasonic generator 8, and ultrasonic generator 8 is preferably arranged on the mid-way at this tank body section top; Ultrasonic generator 8 can have multiple sounding head P, distance is evenly to provide the ultrasonic irradiation face of wider area to each other for sounding head P, and the ultrasonic wave that ultrasonic generator 8 sends can promote the oily water separation in crude oil.
In addition, overflow post 23 can be provided with immediately below ultrasonic generator 8, tank base is fixed in overflow post 23 lower end, upper end has the area upper surface corresponding with the shadow surface of ultrasonic generator 8, to reduce the distance of crude oil with poor quality and the ultrasonic generator 8 flow through below ultrasonic generator 8 and to flow through the degree of depth of the crude oil with poor quality below ultrasonic generator 8, the upper surface of overflow post 23 can make crude oil be subject to ultrasonication fully.The crude oil flowing through overflow post 23 enters the tank base between overflow post 23 and second baffle 9, and carry out sedimentation in this tank base region, second row water pipe 21 is between overflow post 23 and second baffle 9, thus the treatment solution waste liquid layer below oil reservoir is discharged by second row water pipe 21.In ultrasonic wave deposition dehydrating chamber 22, ultrasonic wave can be dewatered well to crude oil with poor quality, can avoid the phenomenon occurring that emulsification is serious simultaneously.
Further, in the tank body section of ultrasonic wave deposition dehydrating chamber 22 correspondence, tank body is provided with emulsion splitter entrance 7, and emulsion splitter entrance 7 is preferably arranged on tank body top and near the first baffle plate 5, is namely arranged on the tank body top area between the first baffle plate 5 and ultrasonic generator 8; Agitator 24 can be provided with, for promoting mixing of the emulsion splitter that adds and crude oil immediately below emulsion splitter entrance 7.By emulsion splitter and hyperacoustic compound action, greatly promote dehydrating of crude oil, thus avoid that crude oil water content is high brings disadvantageous effect to follow-up electro-dewatering.
Do further detailed description to electro-dewatering chamber 12 below, the crude oil through the process of ultrasonic wave deposition dehydrating chamber 22 enters the electro-dewatering chamber 12 formed between second baffle 9 and third gear plate 13 in the effect underflow stream of second baffle 9; Electrode assemblie 20 is provided with in the tank body section of electro-dewatering chamber 12 correspondence; Concrete, electrode assemblie 20 can be the battery lead plate of polylith parallel with second baffle 9 (perpendicular to tank base).Fig. 2 shows the electrode assemblie 20 with the polylith battery lead plate be parallel to each other, and carries out deep dehydration in order to electric field to crude oil, and the water deviate from is discharged by the 3rd water shoot 19 being positioned at tank base.
Crude oil through electro-dewatering chamber 12 processed enters the sedimentation chamber 14 formed between the tank wall in third gear plate 13 and fluid exit in the effect underflow stream of third gear plate 13, in the tank body section of sedimentation chamber 14 correspondence, crude oil gradually overflow enters sedimentation chamber 14, liquid level in sedimentation chamber 14 rises, the crude oil being positioned at upper strata after sedimentation is flowed out by fluid outlet 16, and a small amount of water that bottom may contain is discharged by the 4th water shoot 17 of tank base.
Further, the outer top of tank body is provided with liquid level sensor 10, is beneficial to the water level detecting tank body Crude Oil at any time, thus water level too high and affect dehydrating effect time, reduce the amount of pumping into of crude oil.
Further, tank body top can arrange hanger 6, hanger 6 is preferably arranged on the two ends at tank body top, is beneficial to being suspended of dehydration integrating device; Tank body outer bottom can be provided with the saddle 18 for supporting tank body, and saddle 18 is preferably disposed on the two ends of tank body outer bottom, thus the flexible arrangement of convenient dehydration integrating device and movement, and protect tank base.
Further, the sidewall of tank body is provided with manhole 27, and such as manhole 27 can be arranged on the middle part of the sidewall 15 along tank body axis direction, passes in and out tank body overhaul the integrated dewatering unit of crude oil with person easy to use.
The workflow of the integrated dewatering unit of crude oil with poor quality of the present utility model is as follows:
First, by lift pump 3, the alkaline processing liquid in the crude oil in crude oil with poor quality inlet pipeline 1 and alkaline processing liquid inlet pipeline 2 is pumped in neutralization &washing chamber 4, the crude oil with poor quality pumped into fully mixes in neutralization &washing chamber 4 with alkaline processing liquid (optionally adding alkali in alkaline processing liquid), and the acid in crude oil with poor quality, chemical additive can react with the alkali that adds in alkaline processing liquid.Along with constantly pumping into of crude oil and alkaline processing liquid, water level in neutralization &washing chamber 4 rises gradually, solid particulate is lowered into tank base in the effect of density difference, thus solid particulate in original crude oil with poor quality, acid and chemical additive and crude separation, and discharged by first row water pipe 25 with alkaline processing liquid waste liquid.
Then, ultrasonic wave deposition dehydrating chamber 22 is entered through the crude oil with poor quality of neutralization &washing in the effect underflow stream of the first baffle plate 5 in neutralization &washing chamber 4, in tank body, add emulsion splitter by emulsion splitter entrance 7, crude oil with poor quality fully mixes with emulsion splitter by agitator 24; The crude oil with poor quality being mixed with emulsion splitter carries out breaking emulsion and dewatering under the process of ultrasonic generator 8, and the crude oil after breaking emulsion and dewatering enters the downstream tank body regional subsidence of overflow post 23, and the alkaline processing liquid waste liquid after sedimentation below oil reservoir flows out tank body by second row water pipe 21.
Then, the crude oil through emulsion splitter and ul-trasonic irradiation enters electro-dewatering chamber 12 in the effect underflow stream of second baffle 9, and the 20 pairs of crude oil of the electrode assemblie in electro-dewatering chamber 12 carry out deep dehydration, and the water deviate from discharges tank body by the 3rd water shoot 19.
Finally, crude oil overflow through electrode assemblie 20 deep dehydration enters in sedimentation chamber 14 carries out sedimentation, because the position of fluid outlet 16 is higher than the 4th water shoot, the crude oil on upper strata is discharged by fluid outlet 16, a small amount of water of bottom is discharged by the 4th water shoot 17, thus guarantees that the crude oil high-quality flowed out by fluid outlet 16 is not moisture.
In sum, the principal feature of the integrated dewatering unit of crude oil with poor quality of the present utility model is, first by neutralization &washing, the solid particulate contained in minimizing crude oil with poor quality, acid and chemical additive, to weaken the impact of these materials on breaking emulsion and dewatering.Crude oil with poor quality after neutralization &washing by chemical settling, supersonic dewatering, to reduce water content in crude oil further, thus avoids high water-content crude oil and to dewater the detrimentally affect brought to electrode assemblie 20.Then, electrode assemblie 20 pairs of crude oil carry out deep dehydration, thus the crude oil with poor quality of difficult breaking emulsion and dewatering can well be dewatered.
By specific embodiment, the utility model is further described above; but it should be understood that; here concrete description; should not be construed as the restriction to essence of the present utility model and scope; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the utility model is protected after reading this specification.
Claims (10)
1. the integrated dewatering unit of crude oil with poor quality, is characterized in that, comprising:
Tank body, the two opposite side walls (15) of tank body is respectively arranged with fluid entrance (26) and fluid outlet (16);
Export (16) direction in tank body to be formed successively from fluid entrance (26) to fluid:
Neutralization &washing chamber (4), for the hybrid reaction of alkaline processing liquid and crude oil, to remove the acid in crude oil, solid particulate and chemical additive;
Ultrasonic wave deposition dehydrating chamber (22), utilizes emulsion splitter and ultrasonic wave to crude oil demulsification dehydration;
Electro-dewatering chamber (12), inside be formed can by the small water droplets coalescence in crude oil and with the electric field of crude separation, to realize deep dehydration;
Sedimentation chamber (14); For separating of the crude oil after dehydration, the crude oil after dehydration discharges tank body by fluid outlet (16).
2. the integrated dewatering unit of crude oil with poor quality according to claim 1, it is characterized in that, neutralization &washing chamber (4), ultrasonic wave deposition dehydrating chamber (22), electro-dewatering chamber (12) and sedimentation chamber (14) are formed by being positioned at the spaced polylith vertical baffle isolation of tank body inner bottom part.
3. the integrated dewatering unit of crude oil with poor quality according to claim 2, it is characterized in that, fluid entrance (26) and fluid outlet (16) are separately positioned on along in the two opposite side walls (15) of tank body axis direction, and fluid entrance (26) for adding crude oil and alkaline processing liquid in tank body.
4. the integrated dewatering unit of crude oil with poor quality according to claim 2, it is characterized in that, tank body top in ultrasonic wave deposition dehydrating chamber (22) is provided with ultrasonic generator (8), tank body top between ultrasonic generator (8) and the first baffle plate (5) is also provided with the emulsion splitter entrance (7) for adding emulsion splitter, carries out breaking emulsion and dewatering to utilize emulsion splitter and ultrasonic wave to crude oil.
5. the integrated dewatering unit of crude oil with poor quality according to claim 4, it is characterized in that, ultrasonic generator (8) lower surface has multiple to each other apart from uniform sounding head, tank base immediately below ultrasonic generator (8) is provided with overflow post (23), the upper surface area of overflow post (23) is corresponding with ultrasonic generator (8) lower surface, is subject to ultrasonication fully to make the crude oil flowing through ultrasonic generator (8) below.
6. the integrated dewatering unit of crude oil with poor quality according to claim 4, is characterized in that, is provided with for promoting emulsion splitter and the well-mixed agitator of crude oil (24) immediately below emulsion splitter entrance (7).
7. the integrated dewatering unit of crude oil with poor quality according to claim 1, it is characterized in that, be provided with the electrode assemblie (20) be made up of perpendicular to the battery lead plate of tank base polylith in electro-dewatering chamber (12), the electric field produced between polylith battery lead plate can carry out deep dehydration to crude oil.
8. the integrated dewatering unit of crude oil with poor quality according to claim 1, it is characterized in that, neutralization &washing chamber (4), ultrasonic wave deposition dehydrating chamber (22), tank base corresponding in electro-dewatering chamber (12) and sedimentation chamber (14) can be provided with the water shoot for discharging alkaline processing liquid waste liquid and solid particulate.
9. the integrated dewatering unit of crude oil with poor quality according to claim 1, is characterized in that, also comprises and being arranged on tank body for detecting the liquid level sensor (10) of crude oil liquid level in tank body.
10. the integrated dewatering unit of crude oil with poor quality according to claim 1, is characterized in that, the sidewall of tank body is provided with manhole (27), passes in and out tank body overhaul the integrated dewatering unit of crude oil with person easy to use.
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| CN201520543762.6U CN204939403U (en) | 2015-07-24 | 2015-07-24 | The integrated dewatering unit of crude oil with poor quality |
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| CN201520543762.6U CN204939403U (en) | 2015-07-24 | 2015-07-24 | The integrated dewatering unit of crude oil with poor quality |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445248A (en) * | 2022-09-16 | 2022-12-09 | 江苏理工学院 | Efficient sump oil treatment device integrating multiple demulsification technologies and treatment method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445248A (en) * | 2022-09-16 | 2022-12-09 | 江苏理工学院 | Efficient sump oil treatment device integrating multiple demulsification technologies and treatment method thereof |
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