CN1188199C - High-frequency and high-pressure oil and water separating method and devices - Google Patents
High-frequency and high-pressure oil and water separating method and devices Download PDFInfo
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- CN1188199C CN1188199C CNB021586969A CN02158696A CN1188199C CN 1188199 C CN1188199 C CN 1188199C CN B021586969 A CNB021586969 A CN B021586969A CN 02158696 A CN02158696 A CN 02158696A CN 1188199 C CN1188199 C CN 1188199C
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Abstract
The present invention discloses a high-frequency and high-pressure oil and water separating method and a device thereof. The device is composed of a tank body, a high-pressure introducing rod, an oil outlet pipe, a water outlet pipe, an oil inlet pipe, a liquid level controller, an oil entering and distributing pipe, an electrode plate and suspending beams, wherein the high-pressure introducing rod, the oil outlet pipe, the water outlet pipe, the oil inlet pipe and the liquid level controller are arranged outside the tank body; the oil entering and distributing pipe, the electrode plate and the suspending beam are arranged in the tank body; both ends of each suspending beam of electrodes are fixed on a left end and a right end in the tank body after insulating treatment; the oil entering and distributing pipe is fixed at the bottom of the tank body and is connected with the oil inlet pipe; one end of the high-pressure introducing rod is connected with a high-frequency and high-pressure special power supply, and the other end is connected with the suspending beams of a positive electrode and a negative electrode by flexible, high-pressure resisting and oil resisting conducting wires; the oil inlet pipe is connected with a mixer. The high-frequency electric field force of the present invention can make emulsified water droplets polarized and deformed; a new active surface is exposed; as a result, water droplets are easy to gather into a big droplet; the vibration of the water droplets is most violent in a certain optimal frequency range, and the gathering for changing big is fast and remarkable. When the water droplets change into water droplets whose the diameter is more than 100 mu m, the fast separation of oil and water is realized. The high-frequency and high-pressure oil and water separating device of the present invention is utilized for separating oil from water for ordinary crude oil and thickened oil; the salt contents are less than 3 mg/l; the China.
Description
Technical field
The present invention relates to a kind of oily-water seperating equipment, is to utilize high-frequency electric field to divide dried up equipment from product oil, crude oil, is meant a kind of high-frequency and high-voltage oily water separating equipment especially.
Background technology
Water is one of pollutant of harm maximum in the oil product, and the salt in the oil product mainly is dissolved in the water, and the existence of salt and water is the main cause that causes corrosion such as equipment, pipeline and machine.
The crude oil that exploitation is come out from oil well contains Yan Heshui in various degree.The existence of these salt and water, processing has caused great harm to crude oil, must remove.Because the salt overwhelming majority in the crude oil is water-soluble, thus crude oil desalting to handle be to be undertaken by the water that removes saliferous, promptly desalting and dewatering carries out simultaneously.China has nearly 1000 covers of AC and DC electro-desalting/electric dehydration process equipment now, still adopts the electricity of high-voltage alternating (first generation electro-desalting), HVDC or alternating current-direct current (second generation electro-desalting) formula to induce, electromigration technological equipment system.Yet along with increasing of increase, petroleum acids and the organic sulfur content (interfacial activity material) of high viscosity oil output, the difficulty of electric dehydration strengthens, and causes electro-desalting (to take off CaCl
2, MgCl
2Deng salt) efficient significantly descend (＞3mg/L), thereby cause the corrosion aggravation of oil refining process equipment.Calendar year 2001, the output of China's crude oil with poor quality (peracid, high-sulfur, high viscosity crude oil) reaches more than 8,500 ten thousand tons, surpass the output of 7,800 ten thousand tons of light crude oils, the output of its medium-high viscosity viscous crude is about more than 4,000 ten thousand tons, and original electric desalting and dewatering technology can not satisfy the demand of production.
Summary of the invention
The objective of the invention is to overcome the undesirable of the deficiency of present domestic technology of electric de-salting equipment and product oil refining effect, utilization water-oil separating, dither, electrodynamics principle have been invented a kind of energy-conservation, safety, high-frequency and high-voltage oily-water seperating equipment that water-oil separating efficient is high.It is not only applicable to general crude oil, and the desalting and dewatering that is more suitable for viscous crude is handled, and viscous crude takes off the back salt content less than 3mg/L, reaches China Petrochemical Industry's standard.This equipment can be used for various crude oil (especially viscous crude, crude oil with high acid value etc.), aviation fuels (as aviation gasoline, jet fuel, aircraft fluid, aeroengine oil etc.), general oil product (as gasoline, kerosene, diesel oil, hydraulic oil, lubricating oil, transformer oil, edible wet goods), the profit of special oil product (as turpentine oil, oil of bay, star anise oil, attar of rose, rosin) or the like is smart to be separated.
A kind of high-frequency and high-voltage oily water separating equipment of the present invention, comprise electric supply installation, mixing arrangement, separator, separator is a gun barrel, it is by tank body and be located at high-voltage leading-in rod on the tank body outside, flowline, outlet pipe, oil inlet pipe, fluid level controller and the oil-feed distributing pipe that is located at tank interior, positive electrode plate, negative electrode plate, anodal hanging beam, the negative pole hanging beam constitutes, electrode hanging beam two ends are handled through insulation and are fixed on the two ends, the left and right sides of tank interior, hang positive electrode plate on the anodal hanging beam, hang negative electrode plate on the negative pole hanging beam, positive-negative electrode plate is arranged by one positive one negative order, battery lead plate is provided with hook, and hanging beam is provided with the link that links to each other with the battery lead plate hook; The oil-feed distributing pipe is fixed on the bottom of tank body and connects with oil inlet pipe, and the body of oil-feed distributing pipe is provided with the dispensing orifice that the fuel feeding product flow out, and connects a blender on the oil inlet pipe; High-voltage leading-in rod one end is connected on the high-frequency and high-voltage special power supply by the high-tension electricity flexible connector, and the other end connects with the positive and negative electrode hanging beam by flexible high pressure resistant oil resistant lead; Described high-voltage leading-in rod is that polyester adds glass fibre and makes; Described positive and negative electrode plate is the metallic grid pole plate that composite is processed into.
Described oily water separating equipment, the carbon fiber that its positive and negative electrode plate one composite is a high conductivity and the material of low conductivity are composited.
Described oily water separating equipment, its electric supply installation when electrode carries out the oil product separation, has adopted the high-frequency and high-voltage electric field; The industrial power of input forms a high-frequency and high-voltage special power supply behind high frequency generator controller and high frequency transformer, the high-frequency and high-voltage controller adopts bridge-type high-frequency and high-voltage silicon rectifier, cable adopts multicore silicon rubber heat resisting and pressure resisting cable, and its high-frequency and high-voltage electric field output performance is: signal of telecommunication output: high frequency, high frequency direct current superposition electric current and voltage; High-frequency signal waveform: triangle, rectangle, zigzag; The peak pulse duration of high-frequency signal: can regulate continuously in 0～50% scope; High frequency frequency: 0～50000Hz can regulate continuously; Output voltage: 0～50000V is adjustable continuously; Output current: 0～10A; Power output: 500KVA.
Described oily water separating equipment, its fluid level controller are radioactive level gauge.
Described oily water separating equipment, after this equipment can carry out the water-oil separating processing to ordinary crude oils, viscous crude, salt content was all less than 3mg/L.
Advantage of the present invention: use the high-frequency and high-voltage oil water separator to improve speed, efficient and the precision of water-oil separating.Quicker, more effective, more energy-conservation than traditional direct current, alterating and direct current separation and purification, when more saving.And adopt compound polar plate can suppress the sustained arc generation, and can not introduce new metal ion pollution, the catalyst poisoning phenomenon of having avoided metal ion to cause.
Description of drawings
Fig. 1 is a gun barrel structural representation of the present invention.
Fig. 2 is the schematic flow sheet of oil-water separation method of the present invention.
Fig. 3 is that electric field and water remove schematic diagram between electrode.
Among the figure: 1. tank body 2. high-frequency and high-voltage special power supplies 3. positive electrode plates 4. negative electrode plates 5. oil inlet pipes 6. oil-feed distributing pipes 7. anodal hanging beam 8. negative pole hanging beams 9. outlet pipes 10. flowlines 11. high-tension electricity flexible connectors 12. high-voltage leading-in rods 13. blenders 14. fluid level controllers 15. dispensing orifices
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
See also shown in Figure 1ly, a kind of high-frequency and high-voltage oily water separating equipment of the present invention comprises electric supply installation, mixing arrangement, separator.Separator is a gun barrel, and it is by tank body 1 and be located at high-voltage leading-in rod 12, flowline 10, outlet pipe 9, oil inlet pipe 5, the fluid level controller 14 on tank body 1 outside and the oil-feed distributing pipe 6, positive electrode plate 3, negative electrode plate 4, anodal hanging beam 7, the negative pole hanging beam 8 that are located in the tank body 1 constitute.Two electrode hanging beam two ends add the glass fibre parcel through polytetrafluoroethylene (PTFE) or polyester and are fixed on the two ends, the left and right sides in the tank body 1, the horizontal installation of gun barrel, hang positive electrode plate 3 on the anodal hanging beam 7, hang negative electrode plate 4 on the negative pole hanging beam 8, positive-negative electrode plate is arranged by one positive one negative order, form the composite construction form, battery lead plate is provided with hook, hanging beam is provided with battery lead plate and links up with the link of the company of extension mutually, link can be on hanging beam move left and right, with the size that makes things convenient for battery lead plate displacement with increase battery lead plate quantity.Oil-feed distributing pipe 6 is fixed on the bottom of tank body 1 and connects with oil inlet pipe 5, the body of oil-feed distributing pipe 6 is provided with the dispensing orifice 15 that the fuel feeding product flow out, dispensing orifice 15 is used for regulating the flow velocity of oil, make oily flow speed stability to be separated, evenly rise, oil is better separated in the high-frequency and high-voltage electric field.High-voltage leading-in rod 12 1 ends are connected on the high-frequency and high-voltage special power supply 2 by high-tension electricity flexible connector 11, the other end connects with positive and negative electrode hanging beam 7,8 by flexible high pressure resistant oil resistant lead, connect a static mixer 13 on the oil inlet pipe 5, to make things convenient for demineralized water mix to reduce the denseness of product oil, also be simultaneously to be used for required demineralized water and demulsifier in the mixed crude with product oil.
Equipment each several part of the present invention had both had independence, had well coordination function mutually simultaneously again, realized that jointly oil phase separates with the quick essence of water.
The high-frequency high-voltage origin system:
When electrode carries out the oil product separation, adopted the high-frequency and high-voltage electric field.The industrial power 380V50Hz of input forms a high-frequency and high-voltage special power supply 2 behind high frequency generator controller and high frequency transformer, the high-frequency and high-voltage controller adopts bridge-type high-frequency and high-voltage silicon rectifier, cable adopts multicore silicon rubber heat resisting and pressure resisting cable, and its high-frequency and high-voltage electric field output performance is: signal of telecommunication output: high frequency, high frequency direct current superposition electric current and voltage; High-frequency signal waveform: triangle, rectangle, zigzag; The peak pulse duration of high-frequency signal: can regulate continuously in the 0-50% scope; High frequency frequency: 0～50000Hz can regulate continuously; Output voltage: 0～50000V, adjustable continuously; Output current: 0～10A; Power output: 500KVA.
Electrode system:
Carry out oil product when separating at electrode in the present invention, adopted the high-frequency and high-voltage electric field, link with the special power supply system by high-voltage leading-in rod 12, employing be the adjustable rectilinear suspension pad system of polar plate spacing.The positive and negative combination electrode plate that system has adopted the material Compound Machining of the carbon fiber of high conductivity and low conductivity to form, the structure of positive and negative combination electrode plate is the metallic grid pole plate.
When electrode carried out water-oil separating, the electric field between the electrode as shown in Figure 3, and was the strongest at the electric field in battery lead plate centre position in the present invention, became non-linear weakening to two ends gradually then.When carrying out water-oil separating, oil product is introduced into the electrode lower end, under the effect of weak electric field, remove most water, oil product enters the forceful electric power place at electrode middle part then, under the highfield effect, carry out breakdown of emulsion, gathering, remove the less water particle of fineness ratio, the weak electric field by electrode top removes remaining water at last.After oil product was by electric field between electrode, most water removed totally in the oil product, reach country or industry standard.
Compound polar plate
It is to be composited (as shown in Figure 3) with the carbon fiber of high conductivity and the material of low conductivity that this electrode system uses compound polar plate.The characteristics of this compound polar plate are: pole plate middle part electric conductivity height, produce the highest electric-field intensity, and relatively poor near electric conductivity on the part at electrode two ends, produce the electric-field intensity of successively decreasing.Low another advantage of conductive material be material itself intrinsic electric current control characteristic, this characteristic can not produce lasting electric arc, thereby the generation of inhibition electric arc and lasting under high voltage so can inject more washings and add higher voltage, has improved electro-desalting efficient.In addition, use compound polar plate can not introduce metal ion pollution, the catalyst poisoning phenomenon of having avoided metal ion to cause.
Fluid level controller:
The present invention is directed to crude oil and product oil two class viscosity, proportion differ bigger oil product, the fluid level controller that is adopted is a radioactive level gauge.
Radioactive level gauge (or ultrasonic wave)
Radioactive level gauge is liquid level and the material level in the real various containers of not contact measurement.Can be used for the higher industrial and mineral of high temperature, high pressure, deep-etching and viscosity measures.Because viscosity of crude is higher, particularly the viscosity of viscous crude for this class oil, adopts radioactive level gauge greater than 50mPas in the design.
Static mixer:
The present invention is that minimizing equipment drops into and operation in technological design, choose directly in pipeline the method that oil product and demineralized water are mixed.And pipe-line mixer mainly is a static mixer, so adopt static mixer as oil-water mixer in the design.
When crude oil is carried out high-frequency and high-voltage water-oil separating, adopt following method:
1. heating in crude oil to 70～140 ℃ reduce viscosity;
2. on pyrogen oil transfer pipeline, add 5～30% (v/v) demineralized waters and 5～100ppm demulsifier, and be mixed into degree of mixing below 10 microns by static mixer;
3. be input in the high-frequency and high-voltage gun barrel, add that between pole plate characteristic frequency F spy, 500～2000V/cm high-frequency and high-voltage electric field carry out water-oil separating and handle;
4. the venting saline sewage arrives storage tank with the Crude Oil Transportation after the desalination.
When product oil is carried out high-frequency and high-voltage water-oil separating, adopt following method:
1. in product oil, inject the demineralized water of 5～30% (v/v), and mix by static mixer;
2. product oil is imported in the gun barrel, added that between pole plate characteristic frequency F spy, 500～2000V/cm high-frequency and high-voltage electric field carry out water-oil separating and handle.
3. the venting saline sewage is transported to storage tank with the oil product after the dehydration.
High-frequency and high-voltage oil/moisture system of disembarking can be described as: the high-frequency electrical field force can make the polarization of emulsification water droplet, distortion, expose the active surface that makes new advances, and water droplet is gathered in easily grows up; In addition, the electric field of high frequency makes the vibration aggravation of water droplet, and collision probability increases, and in the special optimum frequency scope of F, the water droplet vibration is the most violent, and gathering is grown up also the rapidest, the most obvious; When water droplet reaches 100 μ m when above, realize the quick separation of profit.Thereby speed, efficient and the precision of water-oil separating have been improved.Quicker, more effective, more energy-conservation than traditional direct current, alterating and direct current separation and purification, when more saving.
Equipment of the present invention has overcome the undesirable of the deficiency of present domestic technology of electric de-salting equipment and product oil refining effect, utilization water-oil separating, dither, electrodynamics principle, invent a kind of energy-conservation, safety, high-frequency and high-voltage oil-water separation method that water-oil separating efficient is high, designed the apparatus system of this method.It is not only applicable to general crude oil, and the desalting and dewatering that is more suitable for viscous crude is handled, and viscous crude takes off the back salt content less than 3mg/L, reaches China Petrochemical Industry's standard.This equipment can be used for various crude oil (especially viscous crude, crude oil with high acid value etc.), aviation fuels (as aviation gasoline, jet fuel, aircraft fluid, aeroengine oil etc.), general oil product (as gasoline, kerosene, diesel oil, hydraulic oil, lubricating oil, transformer oil, edible wet goods), the profit of special oil product (as turpentine oil, oil of bay, star anise oil, attar of rose, rosin) or the like is smart to be separated.
Claims (3)
1, a kind of high-frequency and high-voltage oily water separating equipment, comprise electric supply installation, mixing arrangement, separator, it is characterized in that: separator is a gun barrel, it is by tank body (1) and be located at high-voltage leading-in rod (12) on tank body (1) outside, flowline (10), outlet pipe (9), oil inlet pipe (5), fluid level controller (14) and be located at the inner oil-feed distributing pipe (6) of tank body (1), positive electrode plate (3), negative electrode plate (4), anodal hanging beam (7), negative pole hanging beam (8) constitutes, electrode hanging beam two ends are handled through insulation and are fixed on the inner two ends, the left and right sides of tank body (1), anodal hanging beam (7) is gone up and is hung positive electrode plate (3), negative pole hanging beam (8) is gone up and is hung negative electrode plate (4), positive-negative electrode plate is arranged by one positive one negative order, battery lead plate is provided with hook, and hanging beam is provided with the link that links to each other with the battery lead plate hook; Bottom and same oil inlet pipe (5) that oil-feed distributing pipe (6) is fixed on tank body (1) connect, and the body of oil-feed distributing pipe (6) is provided with the dispensing orifice (15) that the fuel feeding product flow out, and oil inlet pipe (5) is provided with a blender (13); High-voltage leading-in rod (12) one ends are connected on the high-frequency and high-voltage special power supply (2) by high-tension electricity flexible connector (11), and the other end connects with positive and negative electrode hanging beam (7,8) by flexible high pressure resistant oil resistant lead; Described high-voltage leading-in rod (12) is made for polyester adds glass fibre; Described positive electrode plate (3) and negative electrode plate (4) are compound polar plate; Described electric supply installation when electrode carries out the oil product separation, has adopted the high-frequency and high-voltage electric field; The industrial power of input forms a high-frequency and high-voltage special power supply (2) behind high frequency generator controller and high frequency transformer, the high-frequency and high-voltage controller adopts bridge-type high-frequency and high-voltage silicon rectifier, cable adopts multicore silicon rubber heat resisting and pressure resisting cable, and its high-frequency and high-voltage electric field output performance is: signal of telecommunication output: high frequency, high frequency direct current superposition electric current and voltage; High-frequency signal waveform: triangle, rectangle, zigzag; The peak pulse duration of high-frequency signal: can regulate continuously in 0～50% scope; High frequency frequency: 0～50000Hz can regulate continuously; Output voltage: 0～50000V is adjustable continuously; Output current: 0～10A; Power output: 500KVA.
2, oily water separating equipment according to claim 1 is characterized in that: described fluid level controller (14) is a radioactive level gauge.
3, oily water separating equipment according to claim 1 is characterized in that: the oil product salt content after this device separates is less than 3mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021586969A CN1188199C (en) | 2002-12-26 | 2002-12-26 | High-frequency and high-pressure oil and water separating method and devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021586969A CN1188199C (en) | 2002-12-26 | 2002-12-26 | High-frequency and high-pressure oil and water separating method and devices |
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| Publication Number | Publication Date |
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| CN1424128A CN1424128A (en) | 2003-06-18 |
| CN1188199C true CN1188199C (en) | 2005-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021586969A Expired - Fee Related CN1188199C (en) | 2002-12-26 | 2002-12-26 | High-frequency and high-pressure oil and water separating method and devices |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078345B (en) * | 2007-06-27 | 2011-04-06 | 胜利油田胜利工程设计咨询有限责任公司 | Oil field extraction liquid electromagnetic agglomerating pretreatment device |
| CN102021019A (en) * | 2009-09-23 | 2011-04-20 | 北京石油化工学院 | Novel high-efficiency crude oil electric dehydration and desalination method and equipment |
| CN102091439B (en) * | 2010-12-27 | 2013-03-20 | 重庆工商大学 | Emulsified oil water hammer harmonic wave demulsification device |
| CN102796554B (en) * | 2012-06-06 | 2015-04-15 | 胜利油田胜利勘察设计研究院有限公司 | High frequency resonant induction coalescence type oil-gas-water separating device |
| CN104841168B (en) * | 2015-05-14 | 2017-05-10 | 山东大学（威海） | Polar plate capacitance-type low-frequency high-voltage emulsion breaking device |
| CN108499159A (en) * | 2018-04-17 | 2018-09-07 | 中石化炼化工程（集团）股份有限公司 | A kind of separator and oil-water separation method |
| CN111676052A (en) * | 2019-12-20 | 2020-09-18 | 北京科安博科技有限公司 | High-efficient electric desalting and dewatering equipment |
| CN116027758B (en) * | 2023-03-31 | 2023-07-11 | 广汉市迈德乐食品有限公司 | Automatic butter production line construction method controlled by distributed control system |
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2002
- 2002-12-26 CN CNB021586969A patent/CN1188199C/en not_active Expired - Fee Related
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| CN1424128A (en) | 2003-06-18 |
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