CN106100444A - A kind of piezo fluid electromotor - Google Patents
A kind of piezo fluid electromotor Download PDFInfo
- Publication number
- CN106100444A CN106100444A CN201610459316.6A CN201610459316A CN106100444A CN 106100444 A CN106100444 A CN 106100444A CN 201610459316 A CN201610459316 A CN 201610459316A CN 106100444 A CN106100444 A CN 106100444A
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- plate
- piezoelectric
- dividing plate
- piezoelectric vibrator
- generator unit
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- 239000012530 fluid Substances 0.000 title claims abstract description 20
- 210000000683 abdominal cavity Anatomy 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000007912 intraperitoneal administration Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000004904 shortening Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
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- Geophysics And Detection Of Objects (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention relates to a kind of piezo fluid electromotor, belong to piezo-electric generating technical field.Be provided with big cylinder on the left of main body dividing plate, right side is provided with two pieces of otic placodes, and plate end connects through side plate；Left boss and right boss it is respectively equipped with on dividing plate and side plate；End cap cover plate with little cylinder is contained in big cylinder end；Contact pick-up disk body is placed in intraperitoneal, bearing pin stretches out from abdominal cavity through dividing plate, and end part of pin shaft, equipped with connecting plate, bearing pin is cased with spring, and both ends of the spring acts against on disk body and dividing plate respectively；Piezoelectric vibrator is formed by metal basal board is bonding with piezoelectric chip, and the metal basal board two ends of two piezoelectric vibrators are all separately mounted on the boss of left and right, centre is all arranged on connecting plate.Characteristic and advantage: straight piezoelectric vibrator is mounted to warp architecture, formation is simple along the electromotor of pipe lengths stretching vibration, structure and technique, low cost；Piezoelectric chip is only by the compressive stress of range-controllable, and reliability is high；Easily by increasing piezoelectric vibrator number and length raising generated energy.
Description
Technical field
The invention belongs to field of piezoelectric generation, be specifically related to a kind of piezo fluid electromotor, for oil and gas pipes monitoring be
System power supply.
Background technology
Have during the gas oil pipe leakage event caused because of spontaneous corrosion, nature act of god, especially artificial pilferage etc.
Occur, not only cause huge economic loss, the most also cause serious pollution to its periphery natural environment.In the past, often
Oil-gas pipeline is safeguarded by the method using regular manual inspection, but because of its lay distance and be often in uninhabited or
In place of having inconvenient traffic, regular visit is difficult to find leakage on-call maintenance in time, therefore there has been proposed polytype pipeline and let out
Leakage monitoring or burglary-resisting system.Though some pipe leakage proposed or anti-theft monitoring alarm method are the most ripe at technological layer,
But the at present application of China's long distance pipeline anti-theft monitoring system is also in the starting stage, be not yet used widely, its reason it
One is that its powerup issue is not well solved: use the method cost laying cable high and cut off by lawless person and
Affect the properly functioning of monitoring system；And use limited time when using battery to power, need to often change, once battery electric quantity is not
Also the remote transmission of monitoring information cannot be completed when foot and the most in time replacing.Therefore, for making gas oil pipe leakage and burglary-resisting system
It is used practically, it is necessary to first solve its powerup issue.In recent years, for meeting the self-powered of all kinds of wireless sensing monitoring system
Demand, there has been proposed a kind of novel miniature piezoelectric TRT, and it has simple in construction, does not generates heat, without electromagnetic interference, collection
One-tenthization high, is particularly suited for wireless sensing monitoring system power supply.But, existing oil and gas pipes piezoelectric generating device is mostly
Rotating the generating of driving pressure electric tachometer indicator oscillator by fluid turbine, structure is complicated, volume is big, is unsuitable for the pipe that diameter is relatively small
Road；Meanwhile, in work, piezoelectric vibrator compound bending deforms, bears and alternately draw-compressive stress, and when tension is excessive, piezoelectric chip is fragile
Broken, reliability is low.
Summary of the invention
The limitation applied for a power supply difficult problem and the existing piezoelectric generating device of oil/gas pipe line monitoring, the present invention
A kind of piezo fluid electromotor is proposed.The present invention adopted implementation scheme is that be provided with big cylinder on the left of the dividing plate of main body, right side sets
Having two pieces of otic placodes being parallel to each other, described two end part of lug plate connect through side plate；Dividing plate is provided with left boss and side plate is provided with the right side
Boss；It is arranged on the end of big cylinder with the cover plate of end cap of little cylinder through screw and forms two neck chambeies being interconnected and abdomen
Chamber, little tube inner chamber be neck chamber, big tube inner chamber be abdominal cavity；The disk body of contact pick-up be placed in intraperitoneal, contact pick-up bearing pin through dividing plate from
Abdominal cavity is stretched out, and end part of pin shaft is provided with connecting plate through nut；Being cased with balancing spring on bearing pin, balancing spring two ends act against respectively
On disk body and dividing plate；Piezoelectric vibrator two piezoelectric chips bonding with its one side by metal basal board are constituted；Two piezoelectric vibrators
The two ends of metal basal board be all separately mounted on left boss and right boss through screw and briquetting, centre is all pacified through screw and briquetting
It is contained on connecting plate；Piezoelectric vibrator before installing under naturalness be flat construction and length is more than dividing plate and interpleural distance,
Piezoelectric vibrator bears compressive stress for warp architecture and piezoelectric chip after installing；Two ends, connecting plate left and right it are on piezoelectric vibrator
It is the most rectified that part respectively constitutes the piezoelectric vibrator in generator unit I and generator unit II, generator unit I and generator unit II
Bridge is connected with the power circuit on circuit board.
When there being fluid to flow through, neck cavity fluid vibration, intraperitoneal fluid to generation restoring force；Wave length of sound is much larger than
During abdominal cavity yardstick, vibrational energy concentrates at neck chamber, so that neck intracavity effective mass and intraperitoneal fluid form one-dimensional vibrational system
And producing resonance, Intraabdominal fluid oscillation is delivered on connecting plate through contact pick-up again, forces piezoelectric vibrator dilatation and incites somebody to action
Fluid dynamic energy is converted into electric energy: contact pick-up is when left movement, and generator unit I shortens, its internal piezoelectric chip institute compression chord increases
Adding, generator unit II elongation, its internal piezoelectric chip institute compression chord reduce；Otherwise, when contact pick-up moves right, generator unit
I elongation, piezoelectric chip institute compression chord reduce, and generator unit II shortens, in it, piezoelectric chip institute compression chord increases；Above-mentioned
During electric unit I and II alternately elongation and shortening, piezoelectric vibrator elongation in a generator unit reaches maximum, i.e. reaches flat
During straight state, in another generator unit, shortening amount reaches maximum, and shortening amount restricts mutually with elongation, so that it is guaranteed that piezoelectric chip
All the time bearing rational compressive stress, reliability is high.
In the present invention, for improving the adaptive capacity to environment of electromotor and reliability, under nominal flow rate and connecting plate is in dynamic
During equilbrium position, generator unit I is identical with the state of generator unit II；Piezoelectric chip is the PZT4 of 0.1mm～0.2mm, metal
Substrate is beryllium-bronze, and metal basal board is 1～2.5 with the ratio of piezoelectric chip thickness.
Advantage and characteristic: 1. straight piezoelectric vibrator is become warp architecture by the method by installing, and utilizes cavity fluid to shake
Swing and form, low cost simple along the TRT of pipe lengths stretching vibration, structure and processing technology；2. piezoelectric chip is only
Being operated under compressive stress state and compressive stress range-controllable, reliability is high；3. it is easy to by increasing piezoelectric vibrator quantity and length
Method improve generated energy.
Accompanying drawing explanation
Fig. 1 is the section of structure of electromotor in a preferred embodiment of the present invention；
The A portion enlarged drawing of Fig. 2 Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the structural representation in a preferred embodiment of the present invention before piezoelectric vibrator installation.
Detailed description of the invention
The left side of the dividing plate b2 of main body b is provided with big cylinder b1, right side is provided with two pieces of otic placode b4 being parallel to each other, described two otic placodes
B4 end connects through side plate b5；Dividing plate b2 is provided with left boss b3, side plate b5 is provided with right boss b6；End cap with little cylinder a1
The cover plate a2 of a is arranged on the end of big cylinder b1 through screw and forms two neck chamber C1 being interconnected and abdominal cavity C2, little cylinder a1's
Inner chamber is neck chamber C1, the inner chamber of big cylinder b1 is abdominal cavity C2；The disk body c1 of contact pick-up c is placed in abdominal cavity C2, the bearing pin c2 of contact pick-up c
Stretching out from abdominal cavity C2 through dividing plate b2, bearing pin c2 end is provided with connecting plate f through nut g；Balancing spring d it is cased with on bearing pin c2, flat
The two ends of weighing apparatus spring d act against on disk body c1 and dividing plate b2 respectively；Piezoelectric vibrator h is bonding with its one side by metal basal board h1
Two piezoelectric chip h2 are constituted；The two ends of the metal basal board h1 of two piezoelectric vibrator h are all separately mounted to a left side through screw and briquetting e
On boss b3 and right boss b6, centre is all arranged on connecting plate f through screw and briquetting e；Piezoelectric vibrator h installs front naturalness
Be down flat construction and length L1 more than distance L2 between dividing plate b2 and side plate b5, piezoelectric vibrator h after installing be warp architecture,
And piezoelectric chip h2 bears compressive stress；The part being in connecting plate about f two ends on piezoelectric vibrator h respectively constitutes generator unit I
With the rectified bridge respectively of the piezoelectric vibrator h in generator unit II, generator unit I and generator unit II and the power supply on circuit board i
Circuit is connected.
When there being fluid to flow through, fluid oscillation in the C1 of neck chamber and in abdominal cavity C2 fluid to generation restoring force；Wave length of sound
Concentrate at the C1 of neck chamber much larger than vibrational energy during abdominal cavity C2 yardstick, so that fluid group in effective mass and abdominal cavity C2 in the C1 of neck chamber
Becoming one-dimensional vibrational system and produce resonance, the fluid oscillation in abdominal cavity C2 is delivered on connecting plate f through contact pick-up c again, forces pressure
Fluid dynamic energy is also converted into electric energy by electric tachometer indicator h dilatation: contact pick-up f is when left movement, and generator unit I shortens, inside it
Piezoelectric chip h2 institute compression chord increases, and generator unit II elongation, its internal piezoelectric chip h2 institute compression chord reduce；Otherwise,
When contact pick-up f moves right, generator unit I elongation, piezoelectric chip institute compression chord reduce, and generator unit II shortens, it is intrinsic pressure
Electricity wafer institute compression chord increases；During above-mentioned generator unit I and II alternately elongation and shortening, piezoelectric vibrator h sends out at one
In electric unit elongation reach maximum, when i.e. reaching straightened condition, in another generator unit, shortening amount reaches maximum, shortening amount and
Elongation restricts mutually, so that it is guaranteed that piezoelectric chip bears rational compressive stress all the time, reliability is high.
In the present invention, for improving the adaptive capacity to environment of electromotor, generating capacity and reliability, under nominal flow rate and connect
When plate f is in dynamic equilibrium position, generator unit I is identical with the state of generator unit II；Piezoelectric chip h2 is 0.1mm～0.2mm
PZT4, metal basal board h1 be beryllium-bronze, the ratio of the thickness of metal basal board h1 and piezoelectric chip h2 is 1～2.5.
Claims (1)
1. a piezo fluid electromotor, it is characterised in that: be provided with big cylinder on the left of the dividing plate of main body, right side is provided with two pieces mutually
Parallel otic placode, described two end part of lug plate connect through side plate；Dividing plate is provided with left boss, side plate is provided with right boss；With little
The cover plate of the end cap of cylinder is arranged on big cylinder end through screw and forms two neck chambeies being interconnected and abdominal cavity, and little tube inner chamber is neck
Chamber, big tube inner chamber are abdominal cavity；The disk body of contact pick-up is placed in intraperitoneal, bearing pin stretches out from abdominal cavity through dividing plate, and end part of pin shaft is equipped with even
Fishplate bar, bearing pin is cased with balancing spring, and balancing spring two ends act against on disk body and dividing plate respectively；Piezoelectric vibrator is by metal basal board
Two piezoelectric chips bonding with its one side are constituted, and the metal basal board two ends of two piezoelectric vibrators are all through screw and briquetting difference
Be arranged on the boss of left and right, centre is all arranged on connecting plate through screw and briquetting；Piezoelectric vibrator is installed under front naturalness
Flat construction and length are born for warp architecture and piezoelectric chip after installing more than dividing plate and interpleural distance, piezoelectric vibrator
Compressive stress；The part being in two ends, connecting plate left and right on piezoelectric vibrator respectively constitutes generator unit I and generator unit II, and generating is single
Unit I is connected with the power circuit on circuit board with the rectified bridge respectively of the piezoelectric vibrator in generator unit II；Under nominal flow rate and
When connecting plate is in dynamic equilibrium position, generator unit I is identical with the state of generator unit II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459316.6A CN106100444B (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459316.6A CN106100444B (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106100444A true CN106100444A (en) | 2016-11-09 |
| CN106100444B CN106100444B (en) | 2017-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459316.6A Expired - Fee Related CN106100444B (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
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| Country | Link |
|---|---|
| CN (1) | CN106100444B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998124A (en) * | 2017-05-11 | 2017-08-01 | 唐智科技湖南发展有限公司 | A kind of mechanical air cavity electronics joint generalized resonance formula pneumatic electric generator |
| CN110752780A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Piezoelectric energy harvester for pipeline airflow detection system |
| CN110752776A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Telescopic pipeline flows energy accumulator |
| CN110752779A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Telescopic pipeline flow generator |
| CN114830201A (en) * | 2020-01-27 | 2022-07-29 | 株式会社鹭宫制作所 | Measurement system and diagnostic system |
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| CN104500985A (en) * | 2015-01-07 | 2015-04-08 | 浙江师范大学 | Self-powered oil and gas pipeline monitoring device based on fluid power generation |
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Patent Citations (8)
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| CN102790551A (en) * | 2012-09-01 | 2012-11-21 | 浙江师范大学 | Self-powered device for monitoring oil and gas transmission pipelines |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998124A (en) * | 2017-05-11 | 2017-08-01 | 唐智科技湖南发展有限公司 | A kind of mechanical air cavity electronics joint generalized resonance formula pneumatic electric generator |
| CN106998124B (en) * | 2017-05-11 | 2019-01-22 | 唐智科技湖南发展有限公司 | A kind of machinery-air cavity-electronics joint generalized resonance formula pneumatic electric generator |
| CN110752780A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Piezoelectric energy harvester for pipeline airflow detection system |
| CN110752776A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Telescopic pipeline flows energy accumulator |
| CN110752779A (en) * | 2019-05-18 | 2020-02-04 | 浙江师范大学 | Telescopic pipeline flow generator |
| CN110752776B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Telescopic pipeline flows energy accumulator |
| CN110752780B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Piezoelectric energy harvester for pipeline airflow detection system |
| CN110752779B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Telescopic pipeline flow generator |
| CN114830201A (en) * | 2020-01-27 | 2022-07-29 | 株式会社鹭宫制作所 | Measurement system and diagnostic system |
| CN114830201B (en) * | 2020-01-27 | 2023-12-05 | 株式会社鹭宫制作所 | Measurement system and diagnostic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106100444B (en) | 2017-10-20 |
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Granted publication date: 20171020 Termination date: 20180615 |