CN103045294A - Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank - Google Patents
Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank Download PDFInfo
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- CN103045294A CN103045294A CN2011103145441A CN201110314544A CN103045294A CN 103045294 A CN103045294 A CN 103045294A CN 2011103145441 A CN2011103145441 A CN 2011103145441A CN 201110314544 A CN201110314544 A CN 201110314544A CN 103045294 A CN103045294 A CN 103045294A
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Abstract
The invention relates to an electric treating desalting tank of compound ultrasonic wave demulsification. An outer cylinder body sleeved with an insulation sleeve is connected with flange cover plates or dished heads on two sides by using a round cylinder body to form a closed horizontal tank body, an emulsified crude oil feeding pipe is connected to the lower middle part of one side of the outer cylinder body, an oil discharging pipe is connected to the top of the outer cylinder body and is positioned on the other side of the outer cylinder body and at the tail end of the round cylinder body; a drain pipe is connected to the bottom of the outer cylinder body and is positioned on the same side with the oil discharging pipe and at the tail end of the round cylinder body; an ultrasonic amplitude transformer is positioned on the horizontal center axial line of the tank body and is a cylindrical metal body, and the horizontal length of the ultrasonic amplitude transformer is between the horizontal lengths of the emulsified crude oil feeding pipe and the oil discharging pipe or drain pipe; and an electrode net is arranged above the horizontal center axial line of the tank body and comprises an upper-layer metal net and a lower-layer metal net, the metal nets are horizontally arranged square grids or rectangular grids or vertical crossed metal strip nets, the spacing between the two layers of metal nets is between 1cm and 50cm, the distance between the metal nets and the ultrasonic amplitude transformer is not less than 1cm, and the dewatering rate of the electric treating desalting tank is 94-95.0 percent.
Description
Technical field
The present invention relates to the crude oil upgrading electrical desalter, is a kind of crude oil upgrading ultrasonic electric desalter.
Background technology
Before crude oil enters refinery's atmospheric and vacuum distillation unit, need contained salt in the water filling flush away crude oil, the crude oil desalting after the water filling and dehydration are carried out simultaneously.Industrial dehydrate and desalt of crude oil process be with crude oil under the state of heat, add emulsion splitter and apply high-voltage electric field, make little water droplets coalescence settlement separate as larger water droplet to destroy this emulsified state, so-called electric desalting process that Here it is.
Ultrasonic wave generally refers to range of frequency at the sound wave of 20kHz～10MHz, and the mechanism of ultrasonic crude-oil breakdown of emulsion realizes oily water separation based on ul-trasonic irradiation in " displacement effect " that fluid produces.Because the existence of " displacement effect ", the water particle in the emulsion will be constantly to antinode or node motion, assemble and bump, generate the larger water droplet of diameter, and under action of gravity with separating of oil.
Utility model CN2539559Y and CN2669953Y have proposed before crude oil enters electrical desalter, and crude oil emulsion is carried out ultrasonic pretreatment in pipeline, the emulsion after supersound process, and its dewatering and desalting effect in electrical desalter will improve.In pipeline crude oil is carried out ultrasonic pretreatment, the crude oil after the processing can not be realized the separation of profit immediately, continues to carry in pipeline to weaken ultrasonic demulsification.In addition, ultrasonic and electric field carries out in two steps, and the link of technique increases, and totally utilizing of equipment is low.
Summary of the invention
The purpose of this invention is to provide the ultrasonic emulsion breaking separating device that a kind of integrated ultrasonic and electric field act on crude oil emulsion simultaneously, it is the electrofining desalter of composite ultraphonic ripple breakdown of emulsion, utilize this equipment, can realize in settlement separation tank, carrying out simultaneously ultrasonic and the electric field demulsification to crude oil emulsion, ultrasonic and synergy electric field will speed up oily water separation, improves the crude oil demulsification separation efficiency.
Crude oil ultrasonic electric desalter adopts metallic substance to make, and is the sleeping tank of round shape, by outer cylinder body and muff, emulsified crude oil feed-pipe, oil outlet pipe, water shoot, electric field controls power supply, electrode wires, electrode network, ultrasonic-frequency power supply, ultrasonic transducer and watercooling jacket, vibration-sensing rod, the fixing tongued and grooved flanges that reaches, ultrasonic amplitude transformer forms.
Outer cylinder body is connected with flange plate or the torispherical head of both sides by cylinder, consists of the sleeping tank body of sealing.The outer covering and heat insulating cover of outer cylinder body is to material insulation in the outer cylinder body.
The emulsified crude oil feed-pipe is connected to the middle and lower part of outer cylinder body one side, is the admission port of emulsified crude oil.
Oil outlet pipe is connected to the outer cylinder body top, is positioned at the outer cylinder body opposite side, and the cylinder end is through ultrasonic and electric field action, the settlement separate oil phase outlet that obtains.
Water shoot is connected to the outer cylinder body bottom, is positioned at oil outlet pipe the same side, and the cylinder end is through ultrasonic and electric field action, the settlement separate water outlet that obtains.
Ultrasonic amplitude transformer is on the tank body horizontal center line axis, is cylindric metallic object, and its horizontal length is between emulsified crude oil feed-pipe and oil outlet pipe or water shoot, and horn is to whole tank body Omnidirectional radiation ultrasonic vibrational energy.The input electricity of ultrasonic-frequency power supply is 220V commonly used or 380V AC power.The effect of ultrasonic transducer is to convert electric energy to ultrasonic vibrational energy, lower in working order, water coolant is removed the heat that transverter produces, and ultrasonic-frequency power supply includes the high-frequency vibration signal source, matching system and Controlling System etc., ultrasonic transducer is passed to ultrasonic amplitude transformer by vibration-sensing rod with ultrasonic energy.
The electric field controls power supply provides electric field for crude oil ultrasonic electric desalter, and its electric field action mode is the common interchange of industry, direct current and alternating current-direct current etc.Electrode network is positioned at more than the tank body horizontal center line axis, formed by upper and lower double layer of metal net, wire netting can be horizontally disposed square grid or rectangle net, it also can be the wire mesh that vertically is interspersed, how many spacings of double layer of metal net is determined according to tank body size and material, generally between 1cm～50cm.Shortest distance between sub-layers of wire mesh and the ultrasonic amplitude transformer is not less than 1cm.Electrode wires is two strip metal wires of contact electric field controls power supply and electrode network, and the double layer of metal net is linked to each other with power positive cathode respectively.
The application method of the electrofining desalter of composite ultraphonic ripple breakdown of emulsion is: the emulsified crude oil of water filling enters tank body by the emulsified crude oil feed-pipe, under electric field and hyperacoustic synergy, through sedimentation, oil phase is flowed out by tank body top oil outlet pipe, and water is flowed out by the tank body lower part water shoot.The ultrasonic frequency general control is at 10～100KHz, and strength of electric field is adjusted according to crude oil and emulsion character, generally at 500～1500V/cm.According to amount of finish and complete processing requirement, design and produce ultrasonic and the electric field power supply, its output rating can realize within the specific limits optimizing and regulate.But ultrasonication can be continuously also pulsed operation, and can regulate ultrasonic wave cycle and pulsewidth, to realize the demulsification optimization to crude oil emulsion.
Temperature based on crude character and the complete processing of emulsified crude oil in tank body requires to adjust, and general crude oil normal temperature viscosity is larger, and its temperature in tank body is answered corresponding raising, to reduce viscosity of crude, strengthens demulsification.The residence time of emulsified crude oil in tank body decides on the separating effect of oil phase and water, take the oil phase water content that reaches processing requirement as target, the residence time by manufacturing and designing tank body volume size and regulate the emulsified crude oil flow control.
The present invention can carry out ultrasonic and electric field demulsification simultaneously to emulsified crude oil, and ultrasonic and synergy electric field will speed up oily water separation, obtains simultaneously breakdown of emulsion crude oil and water by the settlement separate effect of tank body, greatly improves the crude oil demulsification separation efficiency.
The present invention is applicable to the profit break milk separation of crude oil emulsion and other aqueous emulsions.
Description of drawings
Fig. 1 is the electrofining desalter structural representation of composite ultraphonic ripple breakdown of emulsion,
Wherein 1-outer cylinder body and muff, 2-electrode wires, 3-electric field controls power supply, 4-electrode network, the 5-oil outlet pipe, 6-ultrasonic-frequency power supply, 7-ultrasonic transducer and watercooling jacket, 8-vibration-sensing rod, fixing and the tongued and grooved flanges of 9-, 10-water shoot, 11-ultrasonic amplitude transformer, 12-emulsified crude oil feed-pipe
Embodiment
The electrofining desalter of a kind of composite ultraphonic ripple breakdown of emulsion of the present invention is by outer cylinder body and muff 1, electrode wires 2, electric field controls power supply 3, electrode network 4, oil outlet pipe 5, ultrasonic-frequency power supply 6, ultrasonic transducer and watercooling jacket 7, vibration-sensing rod 8, fixing and tongued and grooved flanges 9, water shoot 10, ultrasonic amplitude transformer 11, emulsified crude oil feed-pipe 12 forms;
Cover has muff outer cylinder body 1 to be connected with flange plate or the torispherical head of both sides by cylinder, consists of the sleeping tank body of sealing; Emulsified crude oil feed-pipe 12 is connected to the middle and lower part of outer cylinder body one side, and oil outlet pipe 5 is connected to the outer cylinder body top, is positioned at the outer cylinder body opposite side, the cylinder end; Water shoot 10 is connected to the outer cylinder body bottom, is positioned at oil outlet pipe the same side, the cylinder end; Ultrasonic amplitude transformer 11 is on the tank body horizontal center line axis, is cylindric metallic object, and its horizontal length is between emulsified crude oil feed-pipe and oil outlet pipe or water shoot; Electrode network 4 is positioned at more than the tank body horizontal center line axis, formed by upper and lower double layer of metal net, wire netting is horizontally disposed square grid or rectangle net, or the wire mesh that vertically is interspersed, the spacing of double layer of metal net is between 1cm～50cm, and the shortest distance between sub-layers of wire mesh and the ultrasonic amplitude transformer is not less than 1cm.
Embodiment 1:
The electrofining desalter of the composite ultraphonic ripple breakdown of emulsion that embodiment 1 adopts is developed ultrasonic operating frequency 21KHz, 10 liters of tank body volumes by CNPC's Karamay Petrochemical Company.The electric field action mode is alternating current-direct current, the rectangle net that wire netting is arranged horizontally, double layer of metal net spacing 1.5cm, between sub-layers of wire mesh and the ultrasonic amplitude transformer apart from 1.5cm.
Water filling 5%, the Karamay Petrochemical Company II cover distillation processing crude oil that temperature is 120 ℃, enter crude oil ultrasonic electric desalter with 2 liter/mins of clock flows by the emulsified crude oil feed-pipe, adopt the continuous ultrasound mode of action, ultrasonic-frequency power supply output rating 115W, electric field output power of power supply 200W, strength of electric field 800V/cm.The control drain discharge flows out water and slightly carries fragmentary oil bloom secretly at 0.09～0.10 liter/min of clock this moment, and oil phase is flowed out by oil outlet pipe, and by analysis, it is moisture to be 0.25%, dehydration rate 95.0%.
Embodiment 2:
The electrofining desalter of the composite ultraphonic ripple breakdown of emulsion that embodiment 2 adopts is developed ultrasonic operating frequency 35KHz, 50 liters of tank body volumes by CNPC's Karamay Petrochemical Company.The electric field action mode is direct current, and wire netting is the wire mesh that vertically is interspersed, double layer of metal net spacing 2cm, between sub-layers of wire mesh and the ultrasonic amplitude transformer apart from 2cm.
Water filling 5%, the Karamay Petrochemical Company coker processing crude oil that temperature is 135 ℃, enter crude oil ultrasonic electric desalter with 5 liter/mins of clock flows by the emulsified crude oil feed-pipe, adopt the impulse ultrasound mode of action, ultrasonic-frequency power supply output rating 300W, ultrasonication cycle 75ms, pulsewidth is 10ms, electric field output power of power supply 500W, strength of electric field 1000V/cm.The control drain discharge flows out water and slightly carries fragmentary oil bloom secretly at 0.23～0.25 liter/min of clock this moment, and oil phase is flowed out by oil outlet pipe, and by analysis, it is moisture to be 0.28%, dehydration rate 94.4%.
Claims (3)
1. the electrofining desalter of a composite ultraphonic ripple breakdown of emulsion, this tank is by outer cylinder body and muff (1), electrode wires (2), electric field controls power supply (3), electrode network (4), oil outlet pipe (5), ultrasonic-frequency power supply (6), ultrasonic transducer and watercooling jacket (7), vibration-sensing rod (8), fixing and tongued and grooved flanges (9), water shoot (10), ultrasonic amplitude transformer (11), emulsified crude oil feed-pipe (12) forms; It is characterized in that:
Cover has muff outer cylinder body (1) to be connected with flange plate or the torispherical head of both sides by cylinder, consists of the sleeping tank body of sealing; Emulsified crude oil feed-pipe (12) is connected to the middle and lower part of outer cylinder body one side, and oil outlet pipe (5) is connected to the outer cylinder body top, is positioned at the outer cylinder body opposite side, the cylinder end; Water shoot (10) is connected to the outer cylinder body bottom, is positioned at oil outlet pipe the same side, the cylinder end; Ultrasonic amplitude transformer (11) is on the tank body horizontal center line axis, is cylindric metallic object, and its horizontal length is between emulsified crude oil feed-pipe and oil outlet pipe or water shoot; Electrode network (4) is positioned at more than the tank body horizontal center line axis, formed by upper and lower double layer of metal net, wire netting is horizontally disposed square grid or rectangle net, or the wire mesh that vertically is interspersed, the spacing of double layer of metal net is between 1cm～50cm, and the shortest distance between sub-layers of wire mesh and the ultrasonic amplitude transformer is not less than 1cm.
2. the application of the electrofining desalter of a composite ultraphonic ripple breakdown of emulsion claimed in claim 1, it is characterized in that: the emulsified crude oil of water filling enters tank body by the emulsified crude oil feed-pipe, under electric field and hyperacoustic synergy, through sedimentation, oil phase is flowed out by tank body top oil outlet pipe, and water is flowed out by the tank body lower part water shoot.
3. the electrofining desalter of composite ultraphonic ripple breakdown of emulsion according to claim 2 is characterized in that: lower in working order, ultrasonic frequency is controlled at 10～100KHz, and strength of electric field is at 500～1500V/cm; Ultrasonication is adopted continuously or pulsed operation, and ultrasonic wave cycle and pulsewidth are regulated, and realizes the demulsification optimization to crude oil emulsion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110314544.1A CN103045294B (en) | 2011-10-17 | 2011-10-17 | Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank |
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| CN201110314544.1A CN103045294B (en) | 2011-10-17 | 2011-10-17 | Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank |
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| CN103045294A true CN103045294A (en) | 2013-04-17 |
| CN103045294B CN103045294B (en) | 2015-05-13 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230683A (en) * | 2013-04-26 | 2013-08-07 | 江苏思澳环保科技有限公司 | Demulsification reaction tank |
| CN104277872A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | U-shaped pipe crude oil ultrasonic preprocessor and use method thereof |
| CN105694964A (en) * | 2016-04-08 | 2016-06-22 | 江苏大轩石化设备有限公司 | Ultrahigh-power ultrasonic dirty oil demulsification and dehydration control system |
| CN106395982A (en) * | 2016-11-30 | 2017-02-15 | 南京右转信息科技有限公司 | Oil-water separator |
| CN110184088A (en) * | 2019-06-04 | 2019-08-30 | 哈尔滨理工大学 | A kind of crude dehydrating plant and dewatering of ultrasonic in combination electric field |
| CN113372945A (en) * | 2021-05-27 | 2021-09-10 | 广西大学 | Method and device for removing impurities and dehydrating waste engine oil by applying composite field force |
| CN113651474A (en) * | 2021-08-01 | 2021-11-16 | 许裕金 | Solid-liquid separation device for electrochemical extraction of oil from kitchen garbage |
| CN114161638A (en) * | 2021-12-08 | 2022-03-11 | 浙大宁波理工学院 | Device and method for reducing die pressing defects of corner area of composite product |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539559Y (en) * | 2002-03-28 | 2003-03-12 | 中国石化集团齐鲁石油化工公司 | Crude oil ultrasonic wave-electric field combined desalination device |
| CN201404714Y (en) * | 2009-01-23 | 2010-02-17 | 中国石油化工集团公司 | Novel electric desalting and dehydrating device |
-
2011
- 2011-10-17 CN CN201110314544.1A patent/CN103045294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539559Y (en) * | 2002-03-28 | 2003-03-12 | 中国石化集团齐鲁石油化工公司 | Crude oil ultrasonic wave-electric field combined desalination device |
| CN201404714Y (en) * | 2009-01-23 | 2010-02-17 | 中国石油化工集团公司 | Novel electric desalting and dehydrating device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230683A (en) * | 2013-04-26 | 2013-08-07 | 江苏思澳环保科技有限公司 | Demulsification reaction tank |
| CN104277872A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | U-shaped pipe crude oil ultrasonic preprocessor and use method thereof |
| CN104277872B (en) * | 2013-07-05 | 2016-04-06 | 中国石油天然气股份有限公司 | A kind of U-shaped pipe crude oil ultrasonic pretreatment device |
| CN105694964A (en) * | 2016-04-08 | 2016-06-22 | 江苏大轩石化设备有限公司 | Ultrahigh-power ultrasonic dirty oil demulsification and dehydration control system |
| CN106395982A (en) * | 2016-11-30 | 2017-02-15 | 南京右转信息科技有限公司 | Oil-water separator |
| CN110184088A (en) * | 2019-06-04 | 2019-08-30 | 哈尔滨理工大学 | A kind of crude dehydrating plant and dewatering of ultrasonic in combination electric field |
| CN113372945A (en) * | 2021-05-27 | 2021-09-10 | 广西大学 | Method and device for removing impurities and dehydrating waste engine oil by applying composite field force |
| CN113651474A (en) * | 2021-08-01 | 2021-11-16 | 许裕金 | Solid-liquid separation device for electrochemical extraction of oil from kitchen garbage |
| CN114161638A (en) * | 2021-12-08 | 2022-03-11 | 浙大宁波理工学院 | Device and method for reducing die pressing defects of corner area of composite product |
| CN114161638B (en) * | 2021-12-08 | 2023-10-24 | 浙大宁波理工学院 | Device and method for reducing die pressing defects of corner areas of composite product |
| 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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| CN103045294B (en) | 2015-05-13 |
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