CN105953082B - A kind of self-powered oil-gas pipeline monitoring device - Google Patents
A kind of self-powered oil-gas pipeline monitoring device Download PDFInfo
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- CN105953082B CN105953082B CN201610459143.8A CN201610459143A CN105953082B CN 105953082 B CN105953082 B CN 105953082B CN 201610459143 A CN201610459143 A CN 201610459143A CN 105953082 B CN105953082 B CN 105953082B
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- end cap
- inner cylinder
- piezoelectric
- piezoelectric vibrator
- metal substrate
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 6
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000003993 interaction Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of self-powered oil-gas pipeline monitoring device, category fluid inspection field.Flow spoiler and inner cylinder are housed through gusset one and two on inner-walls of duct, inner cylinder both ends are equipped with end cap；Temperature and pressure sensor is inlaid with left end cap, equipped with circuit board, multi-diameter shaft left half axle is stretched out through left end cap, end is equipped with driver, and balancing spring and limit spring are cased with left half axle；Transducer is formed by the ∏ type frameworks of the metal substrate piezoelectric vibrator formed Nian Jie with piezoelectric chip and the installation of its its end；The piezoelectric vibrator of the left and right sides is connected with the cushion pad on right axle shaft and right end cap respectively in inner cylinder, and adj acent piezoelectric oscillator is connected through isolating pad on two different transducers.Advantage characteristic：Generating and flow velocity measurement are realized using fluid structure interaction, real flow velocity on-line monitoring can be achieved；Monitor configures along pipe lengths, it is simple in construction, radial dimension is small, easily pass through more piezoelectric vibrators obtain needed for energy；Piezoelectric vibrator is rational in infrastructure, generated energy is big, reliability is high.
Description
Technical field
The invention belongs to pipeline fluid monitoring technical field, and in particular to a kind of self-powered oil-gas pipeline monitoring device.
Background technology
The streams such as the petroleum and natural gas caused by the reasons such as spontaneous corrosion, nature force majeure and artificial pilferage
Body long distance pipeline is happened occasionally using the incident of leakage of process, and frequently pipe leakage not only causes huge economic damage
Lose while also cause serious pollution to its periphery natural environment.In the past, tieed up frequently with the method for regular manual inspection
Shield, but lay distance because of oil-gas pipeline and often be difficult to find in time in uninhabited or part of having inconvenient traffic, regular visit
Leak and safeguarded.Therefore, there has been proposed polytype to be used for line leakage or burglary-resisting system.Although proposed
Some pipe leakages or anti-theft monitoring alarm method in technological layer with more ripe, but long distance pipeline anti-theft monitoring system of China at present
The application of system obtains the popularization and application of large area also in the elementary step, not yet, and its one of the main reasons is the confession of monitoring system
Electric problem fails to be well solved：1) use the method cost of laying cable high and easily cut off by criminal and influence prison
The normal operation of examining system；2) use during battery powered that usage time is limited, need to often change, once battery electric quantity deficiency and not
Also the remote transmission of monitoring information can not be completed when changing in time；3) in recent years, to meet related wireless sensing monitoring system
The problem of self-powered demand, people also proposed the turbine type microminiature TRT of diversified forms, and its is maximum be it is complicated,
Volume is relatively large, is unsuitable for the less occasion of pipe diameter, and the TRT of some structures also has phenomena such as electromagnetic interference,
Popularization and application receive certain restriction.Therefore, to be used practically petroleum and natural gas pipe leakage and burglary-resisting system,
Still need to solve its powerup issue first.
The content of the invention
For the problems of existing pipeline fluid condition monitoring system power supply aspect, the present invention proposes a kind of self-powered
Oil-gas pipeline monitoring device.The embodiment that the present invention uses is：It is separately installed with inner-walls of duct through gusset one and gusset two
The center of cylindrical flow spoiler and inner cylinder, flow spoiler and inner cylinder is mutually perpendicular to, and inner cylinder left and right ends are provided with a left side through screw respectively
End cap and right end cap；Temperature sensor and pressure sensor are inlaid with left end cap, left end cap is close to the side of inner cylinder through screw
The circuit board of transmitter unit is provided with, the left half axle of multi-diameter shaft stretches out through left end cap centre bore from inner cylinder, left half axle end
Driver is installed；Balancing spring and limit spring are cased with left half axle, balancing spring left and right ends act against driver respectively
On left end cap, limit spring left and right ends act against the side of left end cap and multi-diameter shaft right axle shaft respectively, right axle shaft end face and
Right end cap side is inlaid with cushion pad；With the piezoelectric chip being bonded on the raised metal substrate of circular arc and metal substrate convex surface
Piezoelectric vibrator is formed, two ∏ types frameworks that two piezoelectric vibrators and its metal substrate both ends are installed through screw form transducing
Device, the metal substrate of two piezoelectric vibrators is placed in inner cylinder and can slided along inner cylinder close to installation, transducer in same transducer；
The piezoelectric vibrator of the leftmost side and the rightmost side is connected with the cushion pad on right axle shaft and right end cap respectively in inner cylinder, two different transducings
Adjacent piezoelectric vibrator is connected through isolating pad on device；The end phase of limitting casing during inoperative in transducer on two ∏ type frameworks
Mutually contact, with avoid piezoelectric chip because suffered stress is excessive and fragmentation；Between each piezoelectric vibrator after wire is parallel with one another again with
Circuit board connects, and parallel connection refers to be connected with each other through wire between each piezoelectric chip, is connected with each other between each metal substrate through wire.
During work, when having the fluid to flow through flow spoiler and driver, phase will be produced between fluid and flow spoiler and driver
Interaction.Under certain conditions, when fluid flows through flow spoiler and driver can behind face formed two row direction of rotation it is opposite and
The whirlpool periodically alternately to come off, the alternating of whirlpool, which comes off, can cause the alternating of Fluid pressure to change, even if two before and after driver
The fluid pressure differential of side alternately changes, so that driver produces the of reciprocating vibration of left and right directions.For the present invention, driver
Even if left and right it is of reciprocating vibration force piezoelectric vibrator to be deformed through multi-diameter shaft, the radius of curvature of piezoelectric vibrator increase and reduce,
So as to convert mechanical energy into electric energy；Energy conversion and storage circuit of the generated electricity through wire transmission to circuit board, for temperature
Spend sensor, pressure sensor and signal transmitter unit power supply；Meanwhile the quantity of voltage waveform that is generated of piezoelectric vibrator also by
Extract, for characterizing rate of flow of fluid, rate of flow of fluid signal, temperature signal and pressure signal are launched unit and launched.
In the present invention, to enable piezoelectric vibrator effectively to be encouraged, monitor is in nominal flow rate v0Piezoelectric vibrator during lower work
Quiet deflection be its maximum variable shape amount half, a diameter of D=(200~5000) μ/(ρ v of flow spoiler0), ρ is in formula
Fluid density, μ are fluid kinematic viscosity.
In the present invention, the flow velocity of fluids within pipes is characterized by the generation voltage waveform quantity of piezoelectric vibrator in the unit interval,
As v=flD/St, S in formulatFor the coefficient related to structure and fluid property, D is flow spoiler diameter, flFor caused by fluid
Driver vibration frequency, the voltage wave figurate number that i.e. piezoelectric vibrator is generated in the unit interval.
In the present invention, to improve piezoelectric vibrator generating capacity and reliability, piezoelectric chip is 0.2~0.3mm PZT4, gold
Category substrate is beryllium-bronze, and the ratio between thickness of metal substrate and piezoelectric chip is 1~2.5, now the generating capacity of piezoelectric vibrator compared with
By force, energy ratio is larger；Energy ratio refer to variant thickness ratio piezoelectric vibrator first order buckling deformation caused by electric energy with wherein
Maximum it is bigger；The piezoelectric vibrator formed for the present invention using PZT4 and beryllium-bronze substrate, metal under nature
Reasonable radius of curvature at substrate and piezoelectric chip faying face isWherein α
=hm/hpFor thickness ratio, hmAnd hpRespectively metal substrate h1 and piezoelectric chip h2 thickness.
Advantage and characteristic：Realize that self-excited vibration is sent out using using the fluid structure interaction between flow spoiler and driver and fluid
Electricity and flow velocity automatic measurement, without outside energy supply, without electromagnetic interference, the flow velocity real-time online prison of achievable real meaning
Survey；Monitor configures along pipe lengths, simple in construction, radial dimension is small, is easy to obtain institute by using more piezoelectric vibrators
Need energy；Piezoelectric vibrator is rational in infrastructure, deflection is controllable and each point stress distribution is uniform, therefore generated energy is big, reliability is high.
Brief description of the drawings
Fig. 1 is the structural representation of monitor in a preferred embodiment of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is the structural representation of transducer in a preferred embodiment of the present invention；
Fig. 4 is Fig. 3 left view；
Fig. 5 is the graph of relation of piezoelectric vibrator energy ratio and thickness ratio in a preferred embodiment of the present invention.
Embodiment
Cylindrical flow spoiler q is installed through the b1 of gusset one on pipeline a inwall, inner cylinder c, flow-disturbing are installed through the b2 of gusset two
Device q center is vertical with inner cylinder c center, and inner cylinder c left and right ends are provided with left end cap k and right end cap g through screw respectively；Left end
Temperature sensor S1 and pressure sensor S2 are inlaid with lid k, left end cap k is provided with sending out close to inner cylinder c side through screw
Unit P circuit board d is penetrated, centre bores of the multi-diameter shaft m left half axle m1 through left end cap k stretches out from inner cylinder c, left half axle m1 ends
Driver n is installed；Balancing spring j1 and limit spring j2 are cased with left half axle m1, balancing spring j1 left and right ends lean respectively
On driver n and left end cap k, limit spring j2 left and right ends act against left end cap k and multi-diameter shaft m right axle shaft m2's respectively
Side, right axle shaft m2 end faces and right end cap g sides are inlaid with cushion pad e；With the raised metal substrate h1 of circular arc and Metal Substrate
The piezoelectric chip h2 being bonded on plate h1 convex surface forms piezoelectric vibrator h, two piezoelectric vibrator h and its metal substrate h1 both ends warp
The metal substrate h1 that two ∏ type frameworks i that screw is installed form two piezoelectric vibrator h in transducer H, same transducer H is leaned on
Nearly installation, transducer H are placed in inner cylinder c and can be along inner cylinder c slides；The piezoelectric vibrator h of the leftmost side and the rightmost side distinguishes in inner cylinder c
It is connected with the cushion pad e on right axle shaft m2 and right end cap g, adjacent piezoelectric vibrator h is through isolating pad f on two different transducer H
It is connected；The end of limitting casing i1 during inoperative in transducer H on two ∏ type frameworks i contacts with each other, to avoid piezoelectric chip
H2 because suffered stress is excessive and fragmentation；It is connected again with circuit board d after wire is parallel with one another between each piezoelectric vibrator h, parallel connection is
Refer to and be connected with each other through wire between each piezoelectric chip h2, be connected with each other between each metal substrate h1 through wire.
, will production between fluid and flow spoiler q and driver n during work, when thering is the fluid to flow through flow spoiler q and driver n
Raw interaction.Under certain conditions, two row direction of rotation can be formed in face behind when fluid flows through flow spoiler q and driver n
The whirlpool periodically to come off conversely and alternately, the alternating of whirlpool, which comes off, can cause the alternating of Fluid pressure to change, even if driver
The fluid pressure differential of n front and rear sides alternately changes, so that driver n produces the of reciprocating vibration of left and right directions.For this hair
It is bright, though driver n left and right it is of reciprocating vibration force piezoelectric vibrator h to be deformed through multi-diameter shaft m, piezoelectric vibrator h curvature half
Footpath increases and reduced, so as to convert mechanical energy into electric energy；Energy conversion of the generated electricity through wire transmission to circuit board d with
Storage circuit, it is that temperature sensor S1, pressure sensor S2 and signal transmitter unit P power；Meanwhile piezoelectric vibrator h is generated
The quantity of voltage waveform be also extracted, for characterizing rate of flow of fluid, rate of flow of fluid signal, temperature signal and pressure signal
Unit P is launched to launch.
In the present invention, to enable piezoelectric vibrator h effectively to be encouraged, monitor is in nominal flow rate v0Piezoelectric vibrator during lower work
H quiet deflection be its maximum variable shape amount half, flow spoiler q a diameter of D=(200~5000) μ/(ρ v0), ρ in formula
It is fluid kinematic viscosity for fluid density, μ.
In the present invention, the flow velocity of fluids within pipes is characterized by the generation voltage waveform quantity of piezoelectric vibrator h in the unit interval,
As v=flD/St, S in formulatFor the coefficient related to structure and fluid property, D is flow spoiler q diameter, flCause for fluid
Driver n vibration frequency, the voltage wave figurate number that i.e. piezoelectric vibrator h is generated in the unit interval.
In the present invention, for improve piezoelectric vibrator h generating capacity and reliability, piezoelectric chip h2 be 0.2~0.3mm PZT4,
Metal substrate h1 is that the ratio between beryllium-bronze, metal substrate h1 and piezoelectric chip h2 thickness is 1~2.5, now piezoelectric vibrator h generating
Ability compared with it is strong, energy ratio is larger；Energy ratio refer to variant thickness ratio piezoelectric vibrator h first order bucklings deformation caused by electric energy with
Maximum therein it is bigger；It is golden under nature for the piezoelectric vibrator h of the invention formed using PZT4 and beryllium-bronze substrate
Belonging to the reasonable radius of curvature at substrate h1 and piezoelectric chip h2 faying faces isIts
Middle α=hm/hpFor thickness ratio, hmAnd hpRespectively metal substrate h1 and piezoelectric chip h2 thickness.
Obviously, the present invention is to realize that self-excited vibration is sent out using the fluid structure interaction between flow spoiler q and driver n and fluid
Electricity and flow velocity automatic measurement, without outside energy supply, without electromagnetic interference, the flow velocity real-time online prison of achievable real meaning
Survey；Monitor configures along pipe lengths, simple in construction, radial dimension is small, is easy to obtain institute by using more piezoelectric vibrators
Need energy；Piezoelectric vibrator is rational in infrastructure, deflection is controllable and each point stress distribution is uniform, therefore generated energy is big, reliability is high.
Claims (1)
- A kind of 1. self-powered oil-gas pipeline monitoring device, it is characterised in that：It is separately installed with inner-walls of duct through gusset one and two The center of cylindrical flow spoiler and inner cylinder, flow spoiler and inner cylinder is mutually perpendicular to, inner cylinder left and right ends be separately installed with left end cap and Right end cap；Temperature sensor and pressure sensor are inlaid with left end cap, left end cap is provided with launching close to the side of inner cylinder The circuit board of unit, the left half axle of multi-diameter shaft stretch out through left end cap centre bore from inner cylinder, and left half axle end is provided with driver； Balancing spring and limit spring are cased with left half axle, balancing spring left and right ends are acted against on driver and left end cap respectively, limit Position spring left and right ends act against the side of left end cap and multi-diameter shaft right axle shaft respectively, and right axle shaft end face and right end cap side are inlayed Embedded with cushion pad；Piezoelectric vibrator, pressure are formed with the piezoelectric chip being bonded on the raised metal substrate of circular arc and metal substrate convex surface PZT4 that electric chip is 0.2~0.3mm, metal substrate are beryllium-bronze, and the ratio between thickness of metal substrate and piezoelectric chip is 1~2.5, Radius of curvature under nature at metal substrate and piezoelectric chip faying face is Wherein α=hm/hpFor thickness ratio, hmAnd hpRespectively metal substrate h1 and piezoelectric chip h2 thickness；Two piezoelectric vibrators and its Two ∏ types frameworks that metal substrate both ends are installed form transducer, the metal substrate of two piezoelectric vibrators in same transducer Close to installation, transducer is placed in inner cylinder and can slided along inner cylinder；In inner cylinder the piezoelectric vibrator of the leftmost side and the rightmost side respectively with Right axle shaft is connected with the cushion pad on right end cap, and adjacent piezoelectric vibrator is connected through isolating pad on two different transducers；Each pressure It is connected again with circuit board after wire is parallel with one another between electric tachometer indicator；It is spacing on two ∏ type frameworks in transducer during inoperative The end of frame contacts with each other, and the quiet deflection of piezoelectric vibrator is the half of its maximum variable shape amount when being worked under nominal flow rate；Pipe The flow velocity of fluid is characterized by the generation voltage waveform quantity of piezoelectric vibrator in the unit interval in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610459143.8A CN105953082B (en) | 2016-06-15 | 2016-06-15 | A kind of self-powered oil-gas pipeline monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610459143.8A CN105953082B (en) | 2016-06-15 | 2016-06-15 | A kind of self-powered oil-gas pipeline monitoring device |
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| CN105953082A CN105953082A (en) | 2016-09-21 |
| CN105953082B true CN105953082B (en) | 2018-02-23 |
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| CN107947634A (en) * | 2017-12-13 | 2018-04-20 | 安徽理工大学 | A kind of rotary self-powered Monitoring Pinpelines device |
| CN107940242A (en) * | 2017-12-13 | 2018-04-20 | 安徽理工大学 | A kind of self-powered Monitoring Pinpelines device |
| CN108644617A (en) * | 2018-03-29 | 2018-10-12 | 哈尔滨共阳科技咨询有限公司 | A kind of pipeline device for detecting leak point based on acoustics |
| CN108331702B (en) * | 2018-04-04 | 2024-01-23 | 江苏科技大学 | Vortex-induced vibration power generation device for offshore farms |
| CN108758361B (en) * | 2018-07-10 | 2023-06-09 | 厦门精图信息技术有限公司 | Smart city gas pipeline operation monitoring system |
| JP7108645B2 (en) * | 2020-01-27 | 2022-07-28 | 株式会社鷺宮製作所 | Instrumentation and diagnostic systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3881352A (en) * | 1972-07-31 | 1975-05-06 | Westinghouse Electric Corp | Flowmeter apparatus and method |
| JPS5523497A (en) * | 1979-07-23 | 1980-02-19 | Oval Eng Co Ltd | Karman vortex flow meter |
| CN101334302B (en) * | 2007-06-29 | 2011-03-16 | 上海星空自动化仪表有限公司 | Heavy caliber electromagnetic vortex sjeddomg flowmeter |
| US7836780B2 (en) * | 2008-02-26 | 2010-11-23 | Rosemount Inc. | Sensor tube with reduced coherent vortex shedding |
| CN102220941A (en) * | 2010-04-13 | 2011-10-19 | 李亚平 | Karman vortex street power generation device |
| CN104485851B (en) * | 2015-01-07 | 2017-01-18 | 浙江师范大学 | Pulling and pressing type vibration energy harvester |
| CN104868785B (en) * | 2015-04-30 | 2017-09-05 | 沈阳化工大学 | A kind of cylinder vortex TRT of built-in piezoelectric beam |
| CN105006991A (en) * | 2015-07-22 | 2015-10-28 | 上海交通大学 | Laminated piezoelectric downhole energy collection device |
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Effective date of registration: 20211213 Address after: 257200 north of Gangcheng road and west of Gangxi Second Road, dongyinggang Economic Development Zone, Dongying City, Shandong Province Patentee after: Shandong Yiwei New Material Co.,Ltd. Address before: Room 406, no.3020 Huling Road, Linghu Town, Nanxun District, Huzhou City, Zhejiang Province Patentee before: Huzhou lingchuang Technology Co., Ltd |