CN109039142A - A kind of frictional electrostatic generating device based on marine riser vibration - Google Patents
A kind of frictional electrostatic generating device based on marine riser vibration Download PDFInfo
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- CN109039142A CN109039142A CN201810868451.5A CN201810868451A CN109039142A CN 109039142 A CN109039142 A CN 109039142A CN 201810868451 A CN201810868451 A CN 201810868451A CN 109039142 A CN109039142 A CN 109039142A
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- marine riser
- substrate
- electrostatic generating
- frictional electrostatic
- insulating film
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- 238000004146 energy storage Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 49
- 239000003989 dielectric material Substances 0.000 claims description 22
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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Abstract
The embodiment of the invention discloses a kind of frictional electrostatic generating devices based on marine riser vibration, the flexible insulating film on marine riser surface is bonded in including coating and fixing, multiple frictional electrostatic generating units are packaged in flexible insulating film, ocean current is motivated the mechanical energy of lower marine riser vibration deformation to be converted into electric energy by flexible insulating film and its frictional electrostatic generating unit of inside with marine riser common eigenvector.Electric energy caused by power generator of the invention is fully able to the monitoring system for submarine pipeline, monitoring data Transmission system provides enough electric energy, can also have electrical energy storage device, it can be stored in time when producing electricl energy more than needed, guarantee the continued power of system.The present invention technically directly supports the wireless monitor of pipeline and the wireless transmission of monitoring data in the such particular surroundings in ocean, is the important innovation of submerged structure detection technique.
Description
Technical field
The present invention relates to prisoner's energy technical fields based on triboelectricity principle, more particularly to a kind of marine riser that is based on to vibrate
Frictional electrostatic generating device.
Background technique
Petroleum gas is the grand strategy resource of relationship national economy and social development, China ocean recoverable oil reserves
Almost account for the one third of whole recoverable reserves, in the future for a long period of time all by be national energy strategy weight in it
Weight.Submarine pipeline be Marine oil and gas resource it is main be also most quick, economic, reliable means of transportation.However submarine pipeline takes
It is extreme to use as a servant environment, as its active time is continuously increased, the defects of burn into weld seam will seriously affect the safety of pipeline, become
The main reason for pipeline accident occurs.Therefore, carrying out safety monitoring to submarine pipeline using monitoring instrument becomes guarantee pipeline peace
The important means of row for the national games.In recent years, radio sensor rapidly develops, and application is increasingly extensive, place this kind of for submarine pipeline
Special construction monitoring in extreme environment has great application advantage.But such sensor main energy storage energy-provision way at present
It is chemical cell, it can not be with the long service process permanent supply of submarine pipeline.Therefore, it is necessary to develop it is a kind of can and ocean
Energy supply equipment that pipeline itself combines replaces chemical cell to be powered.And energy accumulator technology quickly grows, applies at present
Extensively, the application of some vibration energy accumulators proposes that this makes frictional electrostatic generating device in submarine pipeline wireless monitor in succession
Application in system is possibly realized.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of based on the frictional quiet of marine riser vibration
Electric power generator.The vibration deformation that ocean current can be acted on to lower marine riser can be converted into electric energy, be the monitoring system and prison of pipeline
The power supply of measured data Transmission system.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of based on the frictional quiet of marine riser vibration
Electric power generator is bonded in the flexible insulating film on marine riser surface, encapsulation in the flexible insulating film including coating and fixing
There are multiple frictional electrostatic generating units；The frictional electrostatic generating unit includes first substrate and the second substrate, and described
Two substrates are fixed on the inside of the flexible insulating film, and with the marine riser plane tangent；It is coated on the outside of the second substrate
Dielectric materials layer；The first substrate is parallel with the second substrate, and inside is coated with dielectric materials layer, the first substrate one
End is fixed on the inside of flexible insulating film by the connector vertical with the second substrate, on the first substrate and the second substrate
Dielectric materials layer contact with each other, and polarity is opposite.Electrode layer, the electricity of first substrate are equipped between dielectric materials layer and substrate
Electrode layer on pole layer and the second substrate respectively constitutes the positive and negative anodes of generator unit；It is flexible when marine riser bends deformation
Deformation occurs therewith for insulating film, and frictional electrostatic generating unit is sent out by lateral pull or pressure, first substrate and the second substrate
Raw relative movement generates positive and negative charge so that the contact area of dielectric material changes respectively, forms potential difference.
Further, the line Yu the marine riser axis of the fixation position of the first substrate and the second substrate
In parallel.
Further, multiple frictional electrostatic generating units are in band-like or matrix arrangement in the flexible insulating film
It is interior.
Further, the electrode layer parallel connection of multiple frictional electrostatic generating units forms power supply circuit.
Further, the flexible insulating film is set at the pipe range of 0.6 times of marine riser bottom end.
It further, further include being encapsulated in the electricity being electrically connected in flexible insulating film with the frictional electrostatic generating unit
Source control system.
Further, the power control system includes stabilized rectifier, energy storage device, potential device and for connecting
Connect the circuit output port of electrical equipment.
Turn the implementation of the embodiments of the present invention has the following beneficial effects: the present invention capturees energy material power electricity using frictional electrostatic
The characteristic changed, the film apparatus comprising frictional electrostatic generating cell array wraps up and fixed be bonded in marine riser appearance
Face makes frictional electrostatic generating unit with marine riser common eigenvector, thus the machinery that pipe vibration caused by ocean current is deformed
It can be converted into electric energy, by pressure stabilizing, the transformation processing of the power supply control integrated system in the power supply film apparatus, to Monitoring Pinpelines
Electrical equipment be powered or carry out power storage.Electric energy caused by power generator of the invention is fully able to as ocean
The monitoring system of pipeline, monitoring data Transmission system provide enough electric energy, are also equipped with electrical energy storage device, when producing electricl energy richness
It can be stored in time when remaining, guarantee the continued power of system.The present invention technically directly supports the such Special Ring in ocean
The wireless transmission of the wireless monitor of pipeline and monitoring data in border is the important innovation of submerged structure monitoring technology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of acquisition device of the present invention；
Fig. 2 is the structure chart of frictional electrostatic generating unit；
Fig. 3 is operation schematic diagram when frictional electrostatic generating unit is affixed on marine riser surface；Wherein a is original state
Under schematic diagram；B and c is the schematic diagram under bending state；
Fig. 4 is the integrated planar figure of frictional electrostatic generating unit.
Fig. 5 is scheme of installation of the device in marine riser.
Fig. 6 is the sectional view of Fig. 5.
Fig. 7 is the function relation figure strained in one first order mode of submarine pipeline with axial position.
Figure label: 1- first substrate；2- the second substrate；3- anode dielectric materials layer；4- cathode dielectric materials layer；
6- flexible insulating film；8- marine riser；The frictional electrostatic generating unit of 9-；10- electric wire；12- energy supply control module；
13- bayonet.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
The present invention provides the frictional electrostatic generating device vibrated based on marine riser, including coats and fix and be bonded in sea
The flexible insulating film 6 on foreign standpipe surface is packaged with multiple frictional electrostatic generating units 9, flexible insulating film in flexible insulating film 6
6 and its internal frictional electrostatic generating unit 9 with 8 common eigenvector of marine riser, mechanical energy is converted into electric energy；The friction
Formula electrostatic generating unit 9 includes first substrate 1 and the second substrate 2, and the second substrate 2 is fixed on the inside of flexible insulating film 6, and with institute
State marine riser plane tangent；Cathode dielectric materials layer 4 is coated on the outside of the second substrate 2；First substrate 1 and the second substrate 2 are flat
Row, inside is coated with positive dielectric materials layer 3, and one end of first substrate 1 is solid by the connector vertical with the second substrate 2
Due to 6 inside of flexible insulating film, the fixed bit of fixed position and the second substrate 2 is setting in same periphery；1 He of first substrate
Dielectric materials layer in the second substrate 2 contacts with each other；Electrode layer, first substrate and are equipped between dielectric materials layer and substrate
Electrode layer on two substrates respectively constitutes the positive and negative anodes of generator unit；When marine riser send Bending Deformation, flexible insulating film 6 with
Deformation occurs, frictional electrostatic generating unit 9 is by lateral pull (Fig. 3 b) or pressure (Fig. 3 c), first substrate 1 and second
Substrate 2 relatively moves, so that the contact area of dielectric material changes, to generate positive and negative charge, forms potential difference.
Wherein, for single slidingtype triboelectricity unit, the thickness of two kinds of dielectric materials 3,4 is respectively d1And d2, the two
Relative dielectric constant be respectively εr1And εr2.X (t) represents the relative displacement applied between the electrode plate there are two types of dielectric material.When
When frictional power generator work, x (t) changes from 0 to maximum.The electrode plate of dielectric material is coated with when two without relative displacement
(i.e. x (t)=0), electrode plate charging, the surface of two electrode plates for being coated with dielectric material obtain opposite electrostatic charge, have phase
Deng charge density σ (contact friction generate charge density).And when two electrode plates generate relative displacement, charge is through additional
Circuit generates electric current.When load resistance is given as R, voltage be may be expressed as:
Wherein d0=d1/εr1+d2/εr2, it is the equivalent thickness of dielectric material, l is the length that dielectric material is coated on electrode plate
Degree, w are the width that dielectric material is coated on electrode plate, ε0For permittivity of vacuum.
Wherein the expression formula of charge Q is
The differential equation is first-order linear homogeneous differential equation, and the general solution expression formula Q (t) of charge Q can be obtained, and is substituted into (1)
Formula can be obtained
V (t) is the output voltage of single slidingtype triboelectricity unit.
The line of the fixation position of first substrate and the second substrate is parallel with marine riser axis, maximum can acquire
Mechanical deformation.As common technical means in the art, multiple frictional electrostatic generating units 9 are in band-like or matrix arrangement, and
And power supply circuit is formed by the way that electric wire 10 is in parallel.Frictional 9 component units array of electrostatic generating unit, between any two spacing
The value within the scope of 5-10cm.Cell array length is determined that cell array width is as needed for electrical equipment by marine riser perimeter
Electricity determines that cell array width is wider, then frictional 9 quantity of electrostatic generating unit is more, that is, the electricity that can be provided is bigger.
It as a preferred technical solution, further include the energy supply control module 12 being encapsulated in flexible insulating film；Power supply control
Module 12 includes stabilized rectifier, energy storage device, potential device and circuit output port, and energy supply control module 12 passes through conducting wire
It is connected to power supply circuit.It is connected by circuit output port with external electric equipment and is powered for it.Energy storage device is then used to deposit
Store up electric energy more than needed.Energy supply control module 12 is located at 6 side of flexible insulating film, and this design enables the membranaceous prisoner of flexible insulation to send out
Complicated wire structure can fight vibration and other influences in marine environment in electric structure 11.
The both ends of flexible insulating film 6 be equipped with can mutually matched bayonet 13, when the bayonet 13 when both ends closes, it is flexible absolutely
Velum 6 can form flexible sleeve on 8 surface of marine riser.It is used on the inner sidewall of flexible sleeve and the contact surface of marine riser
Adhesive fixation is bonded together, to make flexible sleeve with marine riser common eigenvector.
Under ocean current effect, the frictional electrostatic generating unit on 6 surface of flexible insulating film and pipeline configuration synchronous vibration, tool
There is identical deformation.The characteristic of energy material power electricity conversion is captureed according to frictional electrostatic, frictional electrostatic generating unit is due to deformation
And electric current is generated, electric energy thus is converted by the mechanical energy of vibration deformation, and by circuit transmission to power control system.In electricity
In source control system, electric current will provide stable, voltage matches by stabilized rectifier and potential device for external electricity consumption facility
Electric energy reach the using effect for continuing, stablizing energy supply or by power storage more than needed in energy storage device.
About the optimal location that prisoner's energy device is arranged in marine riser, since marine riser is typical long-periodic structure,
Therefore the first first order mode accounts for most important status in its dynamic response.It is clamped that marine riser is reduced to hinged one section of one end
Beam model, then its first first order mode may be expressed as:
Wherein L indicates the length of standpipe, and x is indicated along axial position.
Then according to the strain expression formula of pipe surface:
Wherein y is lateral deformation, and D is pipe diameter.
The relationship strained in a first order mode with pipeline location can be found out, relationship is as shown in Figure 7.As seen from the figure, vertical in distance
Position at 0.6 times of pipe range of bottom of the tube strains maximum, i.e. the position generating efficiency highest, and the optimal position of energy device is captureed for arrangement
It sets.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (7)
1. a kind of frictional electrostatic generating device based on marine riser vibration, which is characterized in that including coating and fixing bonding
Flexible insulating film on marine riser surface is packaged with multiple frictional electrostatic generating units in the flexible insulating film；It is described
Frictional electrostatic generating unit includes first substrate and the second substrate, and the second substrate is fixed in the flexible insulating film
Side, and with the marine riser plane tangent；Dielectric materials layer is coated on the outside of the second substrate；The first substrate with it is described
The second substrate is parallel, and inside is coated with dielectric materials layer, and described first substrate one end passes through the company vertical with the second substrate
Fitting is fixed on the inside of flexible insulating film, and the dielectric materials layer on the first substrate and the second substrate contacts with each other, and polarity
On the contrary.
2. the frictional electrostatic generating device according to claim 1 based on marine riser vibration, which is characterized in that described
The line of the fixation position of first substrate and the second substrate is parallel with the marine riser axis.
3. the frictional electrostatic generating device according to claim 2 based on marine riser vibration, which is characterized in that multiple
The frictional electrostatic generating unit is in band-like or matrix arrangement in the flexible insulating film.
4. the frictional electrostatic generating device according to claim 3 based on marine riser vibration, which is characterized in that multiple
The electrode layer parallel connection of the frictional electrostatic generating unit forms power supply circuit.
5. the frictional electrostatic generating device according to claim 4 based on marine riser vibration, which is characterized in that described
Flexible insulating film is set at the pipe range of 0.6 times of marine riser bottom end.
6. the frictional electrostatic generating device according to claim 1-5 based on marine riser vibration, feature
It is, further includes being encapsulated in the power control system being electrically connected in flexible insulating film with the frictional electrostatic generating unit.
7. the frictional electrostatic generating device according to claim 6 based on marine riser vibration, which is characterized in that described
Power control system includes stabilized rectifier, energy storage device, potential device and the circuit output end for connecting electrical equipment
Mouthful.
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| CN201810868451.5A CN109039142A (en) | 2018-08-01 | 2018-08-01 | A kind of frictional electrostatic generating device based on marine riser vibration |
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| CN201810868451.5A CN109039142A (en) | 2018-08-01 | 2018-08-01 | A kind of frictional electrostatic generating device based on marine riser vibration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111965728A (en) * | 2020-08-20 | 2020-11-20 | 昆明理工大学 | Underwater self-powered detection equipment |
| CN113746365A (en) * | 2021-09-01 | 2021-12-03 | 深圳清华大学研究院 | Integrated micro-generator with ultra-smooth structure, capacitive circuit and micro distributed device |
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| CN111965728A (en) * | 2020-08-20 | 2020-11-20 | 昆明理工大学 | Underwater self-powered detection equipment |
| CN113746365A (en) * | 2021-09-01 | 2021-12-03 | 深圳清华大学研究院 | Integrated micro-generator with ultra-smooth structure, capacitive circuit and micro distributed device |
| CN113746365B (en) * | 2021-09-01 | 2023-08-29 | 深圳清华大学研究院 | Integrated micro-generator with ultra-smooth structure, capacitive circuit and miniature distributed device |
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Application publication date: 20181218 |