CN206721124U - A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field - Google Patents
A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field Download PDFInfo
- Publication number
- CN206721124U CN206721124U CN201720551230.6U CN201720551230U CN206721124U CN 206721124 U CN206721124 U CN 206721124U CN 201720551230 U CN201720551230 U CN 201720551230U CN 206721124 U CN206721124 U CN 206721124U
- Authority
- CN
- China
- Prior art keywords
- high voltage
- electric field
- power supply
- dewatering
- voltage power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
It the utility model is related to high voltage applications technical field; a kind of more particularly to crude dehydrating plant using DC stacked ac pulse-type electric field; including alternating-current pulse high voltage power supply, DC high-voltage power supply, electric dewatering apparatus for crude oil; electric dewatering apparatus for crude oil interior parallel and spaced apart it is provided with electrode plate with high voltage and grounding electrode plate; alternating-current pulse high voltage power supply is electrically connected to form alternating-current pulse high-tension circuit with capacitance and protective resistance successively, and DC high-voltage power supply is electrically connected to form DC high-voltage circuit with high voltage silicon rectifier stack and protective resistance successively；Two-way high-tension circuit is connected by high-voltage connection with electrode plate with high voltage.The number of plies of battery lead plate is few in electric dewatering apparatus for crude oil of the present utility model, and the difficulty of inlet wire wiring is low, the small volume of electric dehydrator, and caused superposition of electric field can form the utilization rate height of effective dewatering electric field, dewatering efficiency and electric energy in integral cycle.
Description
Technical field
High voltage applications technical field is the utility model is related to, the electric dehydration link being mainly used in during crude oil exporting,
A kind of more particularly to electrical oil dewatering water installations using DC stacked ac pulse-type electric field.
Background technology
Electrical oil dewatering hydraulic art using AC field dehydration, DC electric field dehydration and hands over straight compound field dehydration more at present
Method.
AC field is dehydrated, and is that will be applied directly to after the boosted transformer boost of industrial frequency AC on the electrode of dehydrator, shape
Into the electric field changed by sinusoidal rule, required equipment is simple, and cost is low, and the adaptation row to crude oil is strong, and will not cause equipment
Corrosion, its shortcoming is that the effective rate of utilization of electric energy is low.
DC electric field dehydration is that ac voltage rectifier is become into DC voltage, is then added between two parallel electrode plates and is formed
DC electric field, the efficiency of DC electric field dehydration is typically high compared with AC field dewatering efficiency, but water chain is easily formed between battery lead plate
Make dewatering electric field unstable, suitable for handling the low wet crude higher to dehydration quality requirement, and deviate from the oil content in water
It is higher, it can also cause the electrochemical corrosion of electro-dewatering apparatus；
It is to combine the machine of AC field and DC electric field to hand over straight compound field, and upper strata pole plate applies DC electric field, bottom
Pole plate applies AC field, and to improve the treatment effeciency to crude oil emulsion, but this method needs to be arranged in dewatering container
Multi-layered electrode so that the increase of dehydrator volume, and often there is electric field and collapsed phenomenon and electric field wave in complex process, bottom electrode
It is easy to lose the effect of DC electric field when dynamic.
Utility model content
The utility model has the advantages of above-mentioned prior art concurrently, while overcomes above-mentioned the deficiencies in the prior art, there is provided
A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field.
The technical solution of the utility model：
A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field, including alternating-current pulse high voltage power supply, direct current
High voltage power supply, electric dewatering apparatus for crude oil, the electric dewatering apparatus for crude oil interior parallel and spaced apart are provided with electrode plate with high voltage
And grounding electrode plate, bottom end are provided with oil inlet, the other end bottom relative with oil inlet is provided with dewatering outlet, dewatering outlet
Top is provided with oil-out；
The alternating-current pulse high voltage power supply is electrically connected to form alternating-current pulse height with capacitance and the first protective resistance successively
Volt circuit, the DC high-voltage power supply are electrically connected to form DC high-voltage circuit with high voltage silicon rectifier stack and the second protective resistance successively；Institute
State alternating-current pulse high-tension circuit and DC high-voltage circuit is commonly connected to high-voltage connection, high-voltage connection passes through and is installed on electrical oil dewatering
It is connected after bushing on hydrophone with electrode plate with high voltage；
Alternating-current pulse high voltage power supply, DC high-voltage power supply and the grounding electrode plate are both provided with being grounded.
Further, the alternating-current pulse high voltage power supply includes pressure regulator T1 and high-frequency step-up transformer T2, the pressure regulation
Device T1 passes sequentially through rectification module, the first filtration module, inversion module and high-frequency step-up transformer T2 connections.
Further, the DC high-voltage power supply includes pressure regulator T3 and step-up transformer T4, and the pressure regulator T3's is defeated
Go out end and be provided with protective resistance R1, pressure regulator T3 output end connects step-up transformer T4 input, step-up transformer T4's
Output end is disposed with high voltage silicon rectifier stack module and the second filtration module.
The beneficial effects of the utility model are：
1) number of plies of battery lead plate is few in electric dewatering apparatus for crude oil of the present utility model, reduces the difficulty of high pressure inlet wire wiring, subtracts
The volume of small electric dehydrator.
2) DC stacked alternating-current pulse electric field caused by the utility model can form effectively dehydration electricity in integral cycle
Field, improve the utilization rate of dewatering efficiency and electric energy.
3) Parameter adjustable such as the amplitude of DC stacked alternating-current pulse electric field, frequency, dutycycle caused by the utility model, can
Expand the scope for the treatment of fluid moisture content, improve purification oil quality, weaken the corrosion to equipment.
4) spy of DC stacked alternating-current pulse electric field combination DC electric field and ac high frequency electric field caused by the utility model
Point, make water chain be easy to dissipate, keep dewatering electric field stable, improve the electric dehydration efficiency of crude oil.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the crude dehydrating plant of DC stacked ac pulse-type electric field；
Fig. 2 is the circuit theory diagrams of the alternating-current pulse high voltage power supply in Fig. 1；
Fig. 3 is the circuit theory diagrams of the DC high-voltage power supply in Fig. 1；
Fig. 4 is the DC stacked high-frequency impulse electric field schematic diagram in Fig. 1；
Fig. 5 is AC sine electric field schematic diagram caused by prior art；
Fig. 6 is DC electric field, alternating-current pulse electric field, DC stacked alternating-current pulse electric field dehydration experimental result picture；
Fig. 7 is that the lower water drop motion of DC electric field effect and water chain form schematic diagram；
Fig. 8 is water droplet coalescence sedimentation schematic diagram under dipolar forces effect；
Fig. 9 is water droplet vibration coalescence schematic diagram under alternating-current pulse electric field action；
Figure 10 is water droplets coalescence schematic diagram under DC stacked high-frequency impulse electric field action；
Figure 11 is that oscillation action eliminates water chain schematic diagram under DC stacked high-frequency impulse electric field action；
In figure：1- alternating-current pulse high voltage power supplies；2- capacitances；The protective resistances of 3- first；4- high voltage silicon rectifier stacks；5- direct currents are high
Voltage source；6- high-voltage connections；7- bushings；8- electrode plate with high voltage；9- grounding electrode plates；10- crude oil emulsions；11- direct currents
Overlapped high-frequency impulse electric field；12- electric dewatering apparatus for crude oil；13- oil inlets；14 oil-outs；15- dewatering outlets；16- second protects electricity
Resistance.
Embodiment
Below with reference to accompanying drawing, the utility model is described in detail：
With reference to shown in Fig. 1 to Figure 11, a kind of electrical oil dewatering of DC stacked ac pulse-type electric field disclosed in the present embodiment
Water installations, including alternating-current pulse high voltage power supply 1, DC high-voltage power supply 5, electric dewatering apparatus for crude oil 12, inside electric dewatering apparatus for crude oil 12
It is parallel and it is spaced apart be provided with electrode plate with high voltage 8 and grounding electrode plate 9, bottom end is provided with oil inlet 13, with entering
The relative other end bottom of hydraulic fluid port 13 is provided with dewatering outlet 15, and the top of dewatering outlet 15 is provided with oil-out 14.
In present embodiment, the electrode plate with high voltage 8 and grounding electrode plate 9 of use are stainless steel plate, and bushing 7 is poly-
Tetrafluoroethene sleeve pipe.
Crude oil emulsion 10 enters electric dewatering apparatus for crude oil 12 by oil inlet 13, and separated water flows out from dewatering outlet 15, former
Oil flows out from oil-out 14.
Alternating-current pulse high voltage power supply 1 is electrically connected to form alternating-current pulse high pressure with the protective resistance 3 of capacitance 2 and first successively
Circuit, DC high-voltage power supply 5 are electrically connected to form DC high-voltage circuit with the protective resistance 16 of high voltage silicon rectifier stack 4 and second successively；Exchange
High voltage pulse circuit and DC high-voltage circuit are commonly connected to high-voltage connection 6, and high-voltage connection 6 passes through and is installed on electric dewatering apparatus for crude oil
It is connected after bushing 7 on 12 with electrode plate with high voltage 8.
Alternating-current pulse high voltage power supply 1, DC high-voltage power supply 5 and grounding electrode plate are both provided with being grounded.Electrode plate with high voltage 8
The superposition of electric field being superimposed as by high direct voltage component and ac high-voltage pulse component is produced between grounding electrode plate 9.
Specifically, as shown in Fig. 2 alternating-current pulse high voltage power supply 1 includes pressure regulator T1 and high-frequency step-up transformer T2, pressure regulation
Device T1 passes sequentially through rectification module, the first filtration module, inversion module and high-frequency step-up transformer T2 connections.Rectification module includes
Commutation diode D1~D4, the first filtration module include filter capacitor C0, inversion module include inversion module Z1~Z4 and C1~
C4。
Specifically, as shown in figure 3, DC high-voltage power supply 5 includes pressure regulator T3 and step-up transformer T4, pressure regulator T3's is defeated
Go out end and be provided with protective resistance R1, pressure regulator T3 output end connects step-up transformer T4 input, step-up transformer T4's
Output end is disposed with high voltage silicon rectifier stack module and the second filtration module.High voltage silicon rectifier stack module include high-voltage rectification silicon stack D5~
D8, the second filtration module include filter capacitor C5.
As shown in Fig. 4 institutes and Fig. 5, Em is that highest acts on field strength, En is minimum effect field strength, E in figureDCFor DC electric field width
Value, EACIt is that maximum electric field action time, T2 are minimum electric field in a cycle in a cycle for high-frequency impulse electric field amplitude, T1
Action time, Ee is the effective electric demulsification field strength of crude oil emulsion, Eb is electrodispersion field strength.
As seen from Figure 5, sinusoidal electrical field caused by prior art, only scattered field strength Eb and original are reached in crest location
In effective field intensity region between the effective electric demulsification field strength Ee of oil emulsion, effective dewatering time of electric field is few, can cause electric energy
Waste.
And the utility model is by adjusting the pressure regulator T1 of alternating-current pulse high voltage power supply and the pressure regulator of DC high-voltage power supply 5
T3, change the characteristics such as the amplitude, frequency, dutycycle of DC stacked high-frequency impulse electric field 11, ensure DC stacked high-frequency electrical pulses
It is broken that the highest effect field strength Em and minimum effect field strength En of field 11 entirely falls within electrodispersion field strength Eb and crude oil emulsion effectively electricity
Between newborn field strength Ee, and then improve the efficiency of crude oil dehydration.
AC field is fast in electric dehydration dewatering speed early stage it can be seen from Fig. 6 experimental result, and dehydrating effect is good, but
Phase after dewatering, dehydration rate is basicly stable constant, and dehydrating effect is undesirable；DC electric field dewatering speed early stage is slow, but the later stage has
There is deep dehydration ability, dehydrating effect is good, and this explanation AC field is adapted to handle High water cut emulsion, and DC electric field is adapted to handle
Low aqueous emulsion.
Early stage is being dehydrated, exchange content is higher, and dehydrating effect is better, after dewatering the phase, and exchange content is lower, dehydrating effect
Better, entirety dehydrating effect is best when the exchange content of superposition is 10% and 20%, and not only early stage, dewatering speed was fast, and finally
Dehydration rate is higher than DC electric field.It can be seen that superposition of electric field can give full play to direct current and the respective dehydration advantage of ac square wave electric field,
Improve the problem of DC electric field dewatering speed early stage is slow, and AC field later stage dehydrating effect is undesirable.
Using alternating-current pulse high voltage power supply 1 ac high-voltage pulse component, profit are formed by capacitance 2 and protective resistance 3
High direct voltage component is formed by high voltage silicon rectifier stack 4 and protective resistance 3 with DC high-voltage power supply 5, two-way high pressure is drawn by high pressure
Line 6 is together connected on 8 on electrode plate with high voltage, and DC stacked high-frequency impulse electric field is formed between electrode plate with high voltage 8 and grounding electrode plate 9
11, DC stacked high-frequency impulse electric field 11 is formed by stacking by DC electric field and alternating-current pulse electric field；
As shown in fig. 7, under DC electric field, water droplet in oil can take certain polarity due to the reason such as contacting with battery lead plate
Electric charge, water droplet can move to opposite polarity pole plate direction under electric field force effect, and when being collided with pole plate, pole plate can be to water droplet
Charging, it is allowed to take and the electric charge of opposite polarity before and move to another pole plate direction, the water droplet of motion and other water droplets hair
Electrophoresis coalescence occurs for the limitation that oil-water interfacial film can be broken through during raw collision；
As shown in figure 8, water droplet polarizes under electric field action, water droplet both ends take the polarization charge of opposed polarity, by
Polarize water droplet abutting end institute band polarization charge opposite polarity in two, the dipolar forces to attract each other is produced, in the effect of dipolar forces
Under, adjacent water droplet generation dipole coalescence close to each other；
As shown in figure 9, because the alternating-current pulse electric field being superimposed in DC stacked high-frequency impulse electric field makes direction of an electric field at any time
Between constantly change, water droplet both ends polarization charge polarity also constantly changes therewith, and the electric field pulling force that this is subject to water droplet both ends is continuous
Change, drop shape occur elastic telescopic, vibrated along direction of an electric field, vibration can weaken oil-water interfaces film strength, and water droplet more holds
Easily coalesce, water droplets coalescence is to after sufficiently large, by falling on electric dewatering apparatus for crude oil bottom aqueous layer under Action of Gravity Field.
As shown in Figure 10, under DC stacked alternating-current pulse electric field action, the water droplet in crude oil emulsion is in two pole plates
Between move, mutually collide and coalesce, the vibration of elastic telescopic occurs for water droplet itself, and the water droplet closed on attracts each other and coalesce,
After ultimately forming larger water droplet, because Action of Gravity Field settles.
As shown in figure 11, for the higher crude oil emulsion of water content, because the water droplet of coalescence is more, easily two poles
Water chain is produced between plate, water chain, which connects two pole plates, can cause short circuit, electric field is collapsed, in DC stacked alternating-current pulse electric field,
Because AC field is to the oscillation action of water droplet, the generation probability of water chain is reduced, while be easily destroyed in water chain between water droplet
Poised state, water chain is easily broken off into small water chain, ensure that the stabilization of dewatering electric field, can locate under same electric field intensity
Manage the bigger crude oil of moisture content.
Above example is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (3)
1. a kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field, including alternating-current pulse high voltage power supply (1), direct current
High voltage power supply (5), electric dewatering apparatus for crude oil (12), it is characterised in that electric dewatering apparatus for crude oil (12) interior parallel and interval one
Set a distance is provided with electrode plate with high voltage (8) and grounding electrode plate (9), and bottom end is provided with oil inlet (13), with oil inlet
(13) relative other end bottom is provided with dewatering outlet (15), and oil-out (14) is provided with above dewatering outlet (15)；
The alternating-current pulse high voltage power supply (1) is electrically connected to form with capacitance (2) and the first protective resistance (3) successively and exchanges arteries and veins
Leap high volt circuit, the DC high-voltage power supply (5) is electrically connected to form directly with high voltage silicon rectifier stack (4) and the second protective resistance (16) successively
Flow high-tension circuit；The alternating-current pulse high-tension circuit and DC high-voltage circuit are commonly connected to high-voltage connection (6), high-voltage connection
(6) it is connected afterwards with electrode plate with high voltage (8) through the bushing (7) being installed on electric dewatering apparatus for crude oil (12)；
The alternating-current pulse high voltage power supply (1), DC high-voltage power supply (5) and grounding electrode plate (9) are both provided with being grounded.
2. a kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field according to claim 1, the exchange
Pulsed high voltage generator (1) includes pressure regulator T1 and high-frequency step-up transformer T2, and the pressure regulator T1 passes sequentially through rectification module, the
One filtration module, inversion module and high-frequency step-up transformer T2 connections.
3. a kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field according to claim 1, the direct current
High voltage power supply (5) includes pressure regulator T3 and step-up transformer T4, the pressure regulator T3 output end are provided with protective resistance R1, adjusts
Depressor T3 output end connection step-up transformer T4 input, step-up transformer T4 output end are disposed with high voltage silicon rectifier stack
Module and the second filtration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551230.6U CN206721124U (en) | 2017-05-17 | 2017-05-17 | A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551230.6U CN206721124U (en) | 2017-05-17 | 2017-05-17 | A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206721124U true CN206721124U (en) | 2017-12-08 |
Family
ID=60513791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551230.6U Expired - Fee Related CN206721124U (en) | 2017-05-17 | 2017-05-17 | A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206721124U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118794A (en) * | 2017-05-17 | 2017-09-01 | 哈尔滨理工大学 | A kind of crude oil electric dewatering device and method of DC stacked ac pulse-type electric field |
| CN108093551A (en) * | 2017-12-20 | 2018-05-29 | 西安交通大学 | For encouraging the composite power supply unit for generating Uniform Discharge high activity plasma |
| CN112717474A (en) * | 2020-12-17 | 2021-04-30 | 浙江工业大学 | Continuous epoxy soybean oil water separating device and process |
-
2017
- 2017-05-17 CN CN201720551230.6U patent/CN206721124U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118794A (en) * | 2017-05-17 | 2017-09-01 | 哈尔滨理工大学 | A kind of crude oil electric dewatering device and method of DC stacked ac pulse-type electric field |
| CN107118794B (en) * | 2017-05-17 | 2019-05-17 | 哈尔滨理工大学 | A kind of crude oil electric dewatering device and method of DC stacked ac pulse-type electric field |
| CN108093551A (en) * | 2017-12-20 | 2018-05-29 | 西安交通大学 | For encouraging the composite power supply unit for generating Uniform Discharge high activity plasma |
| CN108093551B (en) * | 2017-12-20 | 2020-03-13 | 西安交通大学 | Composite power supply device for exciting and generating uniform discharge high-activity plasma |
| CN112717474A (en) * | 2020-12-17 | 2021-04-30 | 浙江工业大学 | Continuous epoxy soybean oil water separating device and process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107118794B (en) | A kind of crude oil electric dewatering device and method of DC stacked ac pulse-type electric field | |
| CN107723020B (en) | A kind of oil gas water three phase electrostatic coalescence separator | |
| CN206721124U (en) | A kind of electrical oil dewatering water installations of DC stacked ac pulse-type electric field | |
| CN102005937A (en) | Adjustable optimized double-frequency high-pressure pulse-mode crude oil dehydration power supply based on waveform and control method thereof | |
| CN103350031A (en) | Pulse power supply used in electric precipitation | |
| CN103346708A (en) | Method for integrating grading variable frequency heavy-load soft starting and harmonic filtering of motor | |
| CN102500468B (en) | A kind of electrostatic precipitator high pressure intermediate frequency power supply and method of supplying power to thereof | |
| CN201648318U (en) | All-digital control secondary inversion type high-voltage variable-frequency rectangular-wave alternating current power supply device for crude oil dehydration | |
| CN101343555B (en) | Chaotic pulse electric field harmonic oscillation dewatering process and electric dehydration chaotic impulse power source for crude oil | |
| CN201192587Y (en) | High-tension supply intelligence control crude-oil electric desalting and dewatering device | |
| CN200962568Y (en) | High-voltage module of discharger | |
| CN102694474A (en) | Power supply apparatus generating electrostatic field | |
| US11192119B2 (en) | High-voltage power supply system | |
| CN202829959U (en) | High-frequency pulse electric dehydration device for treatment of aged crude oil | |
| CN109768715A (en) | A kind of 220kV super-pressure static dust-removing power | |
| CN214142203U (en) | High-frequency rectangular wave electric dehydration device | |
| CN201620137U (en) | Special frequency conversion pulse electrical dewatering equipment for offshore oil | |
| CN107081046A (en) | A kind of pulse generating unit for gas cleaning | |
| CN206897141U (en) | A kind of pulse generating unit for gas cleaning | |
| CN203700285U (en) | High-frequency electric coalescing oil-gas-water three-phase flow separator | |
| CN203112759U (en) | Electric desalting and dehydrating equipment of crude oil | |
| CN201949688U (en) | Pulse electro-desalting transformer | |
| CN205430042U (en) | 12 pulse adds latent oily charge pump frequency conversion net side harmonic suppression device of 11 filtering | |
| Tang et al. | A high voltage pulsed power supply with reduced device voltage stress for industrial electrostatic precipitators | |
| CN203355882U (en) | Pulse power supply for electric dust removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |