CN107238564B - A kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling - Google Patents
A kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling Download PDFInfo
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- CN107238564B CN107238564B CN201710415117.XA CN201710415117A CN107238564B CN 107238564 B CN107238564 B CN 107238564B CN 201710415117 A CN201710415117 A CN 201710415117A CN 107238564 B CN107238564 B CN 107238564B
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Abstract
A kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling, belongs to microcosmos experiment apparatus field.It is characterized by: middle part is equipped with isolating device in microcosmos experiment slot (2), by isolating device by its internal insulation at symmetrically arranged two flowing lumens, oil product circulating direction in two flowing lumens is oppositely arranged, and the middle part of isolating device is equipped with the collision of reversed oil product and gap occurs, and the top that gap occurs for collision is equipped with image acquisition and processing device；The two sidewalls of microcosmos experiment slot (2) are equipped with electrode plate (12), and electrode plate (12) connects high voltage high frequency bursts generating device.The present invention is able to carry out the microcosmos experiment that dual drop coalesces under electric field and shearing field coupling, the drop of coupling off field is probed into migrate, is poly- and regular, the experimental study for carrying out deformation, movement and the coalescence of drop on micro-scale, can study behavior of the dual drop under electric field and shearing field coupling well on a microscopic scale.
Description
Technical field
A kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling, belongs to microcosmos experiment equipment neck
Domain.
Background technique
A kind of non-renewable strategic resources of the petroleum as preciousness, with the development of society, the consumption of petroleum with
Demand is growing day by day.China major part oil field enters the middle and later periods of recovering the oil, and the difficulty that petroleum is exploited from stratum greatly increases, and leads to
The method for often taking the tertiary oil recoveries such as chemical flooding, combination flooding, the water content in crude oil exploited up are very high (in the oil field produced oil in part
Water content is up to 90% or more) and exist usually in the form of highly stable water-oil emulsion.Crude oil water containing not only increases storage and transportation
Energy consumption in the process, and the burn into that will cause equipment rushes tower, reduces the negative issues such as heat transfer efficiency, therefore, crude oil into factory it
Before, it is necessary to carry out stringent desalting and dewatering processing.
The advantages that dehydration of voltolisation knot is efficient, quick, treating capacity is big with it, is widely applied.Water droplet is in extra electric field
The lower polarization of effect, mutual Collision coagulation, water droplet gathers and is demulsified, so that gathering into big water droplet obtains sedimentation separation.With offshore oil
Field is continually developed, and offshore platform load-bearing and area limitation propose demand to the continuous type voltolisation knot dehydration device of high-efficiency compact.
In recent years, more and more scholars start to recognize the facilitation that flowing is sheared to drop electrostatic coalescence process, including compact
The electrostatic coalescences equipment such as type electrostatic coalescer (CEC), online electrostatic poly- (IEC) and the built-in electrostatic coalescer of container (VIEC)
It all more or less will flowing shear action and electric field action.
Under electric field and shearing field coupling, the stress of drop is complicated, not thorough to the research of droplet coalescence mechanism, especially
It is the experimental study of deformation, movement and the coalescence of drop on micro-scale almost without.But it is coupled in electric field and shearing field
Under effect, the coalescence mechanism of drop has the meaning of directiveness to the design and development of the continuous electrostatic coalescer of high-efficiency compact.It is right
The coalescence mechanism research of drop is extremely urgent under electric field and shearing field coupling.
Summary of the invention
It can be in micro-scale the technical problems to be solved by the present invention are: overcoming the deficiencies of the prior art and provide one kind
On study behavior of the dual drop under electric field and shearing field coupling well, and then to the electric field that coalescence mechanism is studied
The microcosmos experiment device coalesced with dual drop under shearing field coupling.
The technical solution adopted by the present invention to solve the technical problems is: dual drop under the electric field and shearing field coupling
The microcosmos experiment device of coalescence, it is characterised in that: occur including microcosmos experiment slot, settling tank, oil storage tank and high voltage high frequency bursts
Device, the interior middle part of microcosmos experiment slot are equipped with isolating device, are flowed its internal insulation at symmetrically arranged two by isolating device
Cavity, the both ends of each flowing lumen are separately connected one group of oil inlet pipe and oil outlet pipe, the oil product circulation side in two flowing lumens
To oppositely arranged, and the middle part of isolating device is equipped with the collision of reversed oil product and gap occurs, and the top that gap occurs for collision is equipped with
Image acquisition and processing device；The oil inlet pipe of microcosmos experiment slot two sides connects oil storage tank simultaneously, and the oil outlet pipe of two sides connects simultaneously
Settling tank is connect, the two sidewalls of oil product circulating direction are equipped with electrode plate in microcosmos experiment slot, and electrode plate is external by connection
High voltage high frequency bursts generating device.
Isolating device is set in microcosmos experiment slot, and isolation forms two flowing lumens, two formed in microcosmos experiment slot
The liquid of two bursts of reverse circulateds of flowing in a flowing lumen, while between the middle part of isolating device is equipped with the collision generation of reversed oil product
Gap occurs gap using the collision and the oil product of two bursts of reverse flows is made to collide to form contacting section in the gap location, and at this
Gap location continuous phase oil forms velocity gradient, forms shearing force field；Meanwhile it being equipped with simultaneously in the vertical direction of oil product circulating direction
The electric field formed between electrode plate drips at this point, gap location instillation two occurs in the collision, forces microcosmos experiment slot as a result,
In collision collective effect of the gap location simultaneously by shearing field and electric field occurs for interior dual drop, and deformation occurs, migration, gathers and waits
Behavior recycles the image acquisition and processing device of real-time monitoring to shoot the movement agglomeration process of record dual drop, then to image
It is analyzed；Experimental provision of the invention is able to carry out the microcosmos experiment that dual drop coalesces under electric field and shearing field coupling,
Probe into drop migration, poly- and regular, the experiment of deformation, movement and the coalescence of drop on progress micro-scale of coupling off field
Research can study behavior of the dual drop under electric field and shearing field coupling well on a microscopic scale, and then to poly-
Knot mechanism is studied, and is applied to the heavy industrialization of the continuous voltolisation knot of high-efficiency compact significant.
The microcosmos experiment slot is rectangular housing, and the clamping plate connected between end cap and two end cap including two sides is described
Clamping plate be two layers of superposition, electrode plate is installed between two laminated planks, connection oil inlet pipe and fuel-displaced is opened up on the end cap
The oil inlet and oil outlet of pipeline, the inside of end cap are equipped with the bearing rib of connection isolating device.
Electrode plate is installed on two clamping plates of opposition setting so that form electric field between two clamping plates, while with two clamping plates
Oil inlet and oil outlet are set on end cap connected vertically, so that the flow direction of oil product and the direction of electric field are perpendicular, that is, compeled
So that oil product is passed perpendicularly through electric field during flowing, especially when gap occurs by collision, while by electric field and
The collective effect of shearing force is sheared two-way drop when colliding, the possible behavior occurred all collects after electric field action
In collision occur gap in, be more convenient for Centralizing inspection and record, convenient for data acquisition and experimental study.
The isolating device includes two groups of symmetrically arranged quartzy thin slice card slots, quartzy thin slice and liquid distribution plate, two cloth liquid
Plate is arranged in electrode plate two sides, and liquid distribution plate both ends vertically connect the two sidewalls that microcosmos experiment slot is equipped with electrode plate, in liquid distribution plate
Portion's right angle setting quartz thin slice card slot, installs quartzy thin slice in quartzy thin slice card slot, and there are described to touch between two quartzy thin slices
It hits and gap occurs.
For the ease of fixed quartzy thin slice using quartzy thin slice card slot, make the oil entered from oil inlet by the way that liquid distribution plate is arranged
And oil outlet outflow oil can Uniform Flow, reduce local turbulent, improve experiment accuracy.
The thickness of the quartzy thin slice is less than 0.1mm, and it is 10mm that gap, which occurs, for the collision between two quartzy thin slices, microcosmic
The length 200mm of experimental tank.
The thickness very little of quartzy thin slice is less than 0.1mm, and the thickness of quartzy thin slice is thin as far as possible, can reduce in quartz
Thin slice intermediate region flow cross-section areas changes the influence flowed to oil product；The distance between two quartzy thin slices are relative to drop
Partial size is very big, but the very little again for the size of microcosmos experiment slot.It avoids the flowing to the oil product of flowing from generating interference, protects
Demonstrate,prove flowing oil product can Uniform Flow, reduce local turbulent, further increase experiment accuracy.
The distance between the two described liquid distribution plates are more than or equal to the length in oil product circulating direction of electrode plate.
The image acquisition and processing device includes high-speed camera and image collection processing system.
The high voltage high frequency bursts generating device includes high voltage high frequency bursts power supply, and high voltage high frequency bursts power supply passes through electricity
Magnetic coil is separately connected two electrode plates being oppositely arranged.
Described further includes control cabinet, and the control cabinet is mounted on oil inlet pipe and oil outlet pipe by connection
Flow regulator.
The flow regulator includes flowmeter, the delivery valve being mounted in oil outlet pipe and is mounted on oil inlet pipe
On inlet valve.
Compared with prior art, the present invention has the beneficial effects that the present invention in microcosmos experiment slot by being arranged
Isolating device forms two flowing lumens using isolation, two strands is flowed in two flowing lumens formed in microcosmos experiment slot reversely
The liquid of circulation, while being equipped with the collision of reversed oil product at the middle part of isolating device and gap occurs, gap, which occurs, using the collision makes
The oil product for obtaining two bursts of reverse flows collides to form contacting section in the gap location, and forms speed ladder in the gap location continuous phase oil
Degree forms shearing force field；Meanwhile it being equipped with the electric field formed between electrode plate simultaneously in the vertical direction of oil product circulating direction, this
When, gap location instillation two occurs in the collision and drips, forces the dual drop in microcosmos experiment slot that gap occurs in collision as a result,
Locate the collective effect simultaneously by shearing field and electric field, deformation occurs, migration, gathers and waits behaviors, recycles the figure of real-time monitoring
As the movement agglomeration process of acquisition processing device shooting record dual drop, then image is analyzed；Experiment dress of the invention
The microcosmos experiment for being able to carry out that dual drop coalesces under electric field and shearing field coupling is set, the drop of coupling off field is probed into and moves
It moves, poly- and rule, carries out the experimental study of deformation, movement and the coalescence of drop on micro-scale, it can on a microscopic scale very
Behavior of the dual drop under electric field and shearing field coupling is studied well, and then coalescence mechanism is studied, to efficiently tight
Gather continuous voltolisation knot heavy industrialization using significant.
Detailed description of the invention
Fig. 1 is the microcosmos experiment apparatus structure schematic diagram that dual drop coalesces under electric field and shearing field coupling.
Fig. 2 is microcosmos experiment slot structure schematic diagram.
Wherein, 1, control cabinet 2, microcosmos experiment slot 201, end cap 202, bearing rib 203, clamping plate 3, high speed
Photographic apparatus 4, image collection processing system 5, high voltage high frequency bursts power supply 6, settling tank 7, oil storage tank 8, pump
9, flowmeter 10, quartzy thin slice card slot 11, quartzy thin slice 12, electrode plate 13, liquid distribution plate 14, the first oil outlet
15, the first oil inlet 16, the second oil outlet 17, the second oil inlet 18, delivery valve 19, inlet valve 20, monitoring section.
Specific embodiment
Fig. 1 ~ 2 are highly preferred embodiment of the present invention, and 1 ~ 2 the present invention will be further described with reference to the accompanying drawing.
Referring to attached drawing 1: a kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling, including it is microcosmic
Experimental tank 2, settling tank 6, oil storage tank 7 and high voltage high frequency bursts generating device, the interior middle part of microcosmos experiment slot 2 are equipped with isolating device,
By isolating device by its internal insulation at symmetrically arranged two flowing lumens, the both ends of each flowing lumen be separately connected one group into
Oil pipe line and oil outlet pipe, the oil product circulating direction in two flowing lumens is oppositely arranged, and the middle part of isolating device be equipped with it is anti-
It is collided to oil product and gap occurs, the top that gap occurs for collision is equipped with image acquisition and processing device；2 two sides of microcosmos experiment slot into
Oil pipe line connects oil storage tank 7 simultaneously, and the oil outlet pipe of two sides connects settling tank 6 simultaneously, oil product circulating direction in microcosmos experiment slot 2
Two sidewalls be equipped with electrode plate 12, electrode plate 12 passes through the external high voltage high frequency bursts generating device of connection.
Image acquisition and processing device includes high-speed camera 3 and image collection processing system 4.High voltage high frequency bursts fill
It sets including high voltage high frequency bursts power supply 5, high voltage high frequency bursts power supply 5 is separately connected two electrodes being oppositely arranged by electromagnetic coil
Plate 12.
The invention also includes control cabinet 1, control cabinet 1 is mounted on the flow of oil inlet pipe and oil outlet pipe by connection
Regulating device.Flow regulator includes flowmeter 9, the delivery valve being mounted in oil outlet pipe 18 and is mounted on oil inlet pipe
Inlet valve 19.
Referring to attached drawing 2: microcosmos experiment slot 2 is rectangular housing, is connected between end cap 201 and two end cap 201 including two sides
Clamping plate 203, clamping plate 203 is two layers of superposition, and electrode plate 12 is installed between two laminated planks 203, opened up on end cap 201 connect into
The oil inlet and oil outlet of oil pipe line and oil outlet pipe, the inside of end cap 201 are equipped with the bearing rib 202 of connection isolating device.
Wherein, the first oil outlet 14 and the second oil inlet 17 are offered on a wherein end cap 201 for microcosmos experiment slot 2,
The first oil inlet 15 and the second oil outlet 16, the first oil outlet 14 and the second oil outlet are offered on the end cap 201 of the other side
Delivery valve 18 is respectively equipped on the flowline of 16 connections；On first oil inlet 15 and the oil inlet pipe of the second oil inlet 17 connection respectively
Equipped with inlet valve 19, the side of two inlet valves 19 is respectively provided with a flowmeter 9, and two flowmeters 9 connect control cabinet 1 jointly, into
The first oil inlet 15 and the second oil inlet 17 of oil pipe line connection are gone out by 8 connection oil storage tank 7 of pump, the first oil outlet 14 and second
Hydraulic fluid port 16 connects settling tank 6 by delivery valve 18.
Isolating device includes two groups of symmetrically arranged quartzy thin slice card slots 10, quartzy thin slice 11 and liquid distribution plate 13, two cloth liquid
Plate 13 is arranged in 12 two sides of electrode plate, and 13 both ends of liquid distribution plate vertically connect the two sidewalls that microcosmos experiment slot 2 is equipped with electrode plate 12,
13 middle part right angle setting quartz thin slice card slot 10 of liquid distribution plate, quartzy thin slice card slot 10 is interior to install quartzy thin slice 11, two quartzy thin slices
There are collisions, and gap occurs between 11.The thickness of quartzy thin slice 11 is less than 0.1mm, between the collision between two quartzy thin slices 11 occurs
Gap is 10mm, the length 200mm of microcosmos experiment slot 2.The distance between two liquid distribution plates 13 are more than or equal to electrode plate 12 in oil product
The length of circulating direction.
The course of work and working principle: injecting suitable oil product into microcosmos experiment slot 2 first, using micropipettor to
The micron order water droplet of two appropriate partial sizes is moved into microcosmos experiment slot 2 equipped with oil-continuous phase, water droplet is placed on two quartzy thin slices
In monitoring section 20 between 11, the position of dual drop can be adjusted according to requirement of experiment；High voltage high frequency bursts power supply 5 and electrode plate 12
Connection can generate electric field in microcosmos experiment slot 2；Everything in readiness, opens pump 8, and the continuous phase oil in oil storage tank 7 passes through flow
The 9, first oil inlet 15 of meter is sent in microcosmos experiment slot 2 by pump 8；Flowmeter 9 is connect with control cabinet 1, is controlled by control cabinet 1
Flowmeter 9, to control the amount into the oil in the first oil inlet 15 and the second oil inlet 17；From the first oil inlet 15 and second
The continuous phase speed oil that oil inlet 17 enters microcosmos experiment slot 2 is contrary, and flow is identical, by two liquid distribution plates 13 of two sides
Uniform cloth liquid, the even flow field after liquid distribution plate 13；Region between two quartzy thin slices 11, continuous phase oil form velocity gradient,
Drop is by shearing force field；Collective effect of the drop by shearing field and electric field in microcosmos experiment slot 2, deformation occurs, migration,
Gather and wait behaviors, the movement agglomeration process of record dual drop, later-stage utilization image acquisition and processing system are shot using high-speed camera 3
4 pairs of images of uniting are analyzed, and oil product is by entering settling tank 6 after the first oil outlet 14 and the outflow of the second oil outlet 16.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (9)
1. the microcosmos experiment device that dual drop coalesces under a kind of electric field and shearing field coupling, it is characterised in that: including microcosmic
Experimental tank (2), settling tank (6), oil storage tank (7) and high voltage high frequency bursts generating device, in microcosmos experiment slot (2) middle part be equipped with every
From device, by isolating device by its internal insulation at symmetrically arranged two flowing lumens, the both ends of each flowing lumen connect respectively
One group of oil inlet pipe and oil outlet pipe are connect, the oil product circulating direction in two flowing lumens is oppositely arranged, and in isolating device
Gap occurs for the collision that middle part is equipped with the oil product of reverse circulated, and the top that gap occurs for collision is equipped with image acquisition and processing device；
The oil inlet pipe of microcosmos experiment slot (2) two sides connects oil storage tank (7) simultaneously, and the oil outlet pipe of two sides connects settling tank (6) simultaneously,
The two sidewalls of the interior oil product circulating direction of microcosmos experiment slot (2) are equipped with electrode plate (12), and electrode plate (12) passes through outside connection
The high voltage high frequency bursts generating device set.
2. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 1 and shearing field coupling,
It is characterized by: the microcosmos experiment slot (2) is rectangular housing, between end cap (201) and two end cap (201) including two sides
The clamping plate (203) of connection, the clamping plate (203) are two layers of superposition, install electrode plate (12) between two laminated planks (203),
The oil inlet and oil outlet of connection oil inlet pipe and oil outlet pipe are opened up on the end cap (201), end cap is set on the inside of (201)
There is the bearing rib (202) of connection isolating device.
3. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 1 and shearing field coupling,
It is characterized by: the isolating device includes two groups of symmetrically arranged quartzy thin slice card slots (10), quartzy thin slice (11) and cloth
Liquid plate (13), two liquid distribution plates (13) are arranged in electrode plate (12) two sides, and liquid distribution plate (13) both ends vertically connect microcosmos experiment slot (2)
The two sidewalls of electrode plate (12) are installed, right angle setting quartz thin slice card slot (10), quartzy thin slice card slot in the middle part of liquid distribution plate (13)
(10) quartzy thin slice (11) is installed, there are the collisions, and gap occurs between two quartzy thin slices (11) in.
4. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 3 and shearing field coupling,
It is characterized by: the thickness of the quartzy thin slice (11) is less than 0.1mm, gap occurs for the collision between two quartzy thin slices (11)
For 10mm, the length 200mm of microcosmos experiment slot (2).
5. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 3 and shearing field coupling,
It is characterized by: the distance between described two liquid distribution plates (13) are more than or equal to the length in oil product circulating direction of electrode plate (12)
Degree.
6. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 1 and shearing field coupling,
It is characterized by: the image acquisition and processing device includes high-speed camera (3) and image collection processing system (4).
7. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 1 and shearing field coupling,
It is characterized by: the high voltage high frequency bursts generating device includes high voltage high frequency bursts power supply (5), high voltage high frequency bursts power supply
(5) two electrode plates (12) being oppositely arranged are separately connected by electromagnetic coil.
8. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 1 and shearing field coupling,
It is characterized by also including control cabinet (1), the control cabinet (1) is mounted on oil inlet pipe and flowline by connection
The flow regulator on road.
9. the microcosmos experiment device that dual drop coalesces under a kind of electric field according to claim 8 and shearing field coupling,
It is characterized by: the flow regulator includes flowmeter (9), the delivery valve (18) being mounted in oil outlet pipe and installation
Inlet valve (19) on oil inlet pipe.
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| CN201710415117.XA CN107238564B (en) | 2017-06-05 | 2017-06-05 | A kind of microcosmos experiment device that electric field is coalesced with dual drop under shearing field coupling |
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| CN108562518B (en) * | 2018-02-12 | 2023-06-30 | 浙江大学 | Device and method for researching migration track of heavy metal ions in electroosmosis treated polluted soil |
| CN109903820B (en) * | 2019-03-25 | 2021-03-16 | 重庆工商大学 | Method for determining optimal operation parameters of double-field coupling dehydration device |
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