CN205681336U - A kind of piezo fluid generator - Google Patents
A kind of piezo fluid generator Download PDFInfo
- Publication number
- CN205681336U CN205681336U CN201620625560.0U CN201620625560U CN205681336U CN 205681336 U CN205681336 U CN 205681336U CN 201620625560 U CN201620625560 U CN 201620625560U CN 205681336 U CN205681336 U CN 205681336U
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- Prior art keywords
- plate
- piezoelectric
- dividing plate
- abdominal cavity
- piezoelectric vibrator
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- 239000012530 fluid Substances 0.000 title claims abstract description 20
- 210000000683 abdominal cavity Anatomy 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 description 8
- 238000004904 shortening Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 210000001015 abdomen Anatomy 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
- 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
- 238000005516 engineering process Methods 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model relates to a kind of piezo fluid generator, belongs 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；It is respectively equipped with left boss and right boss 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 abdominal cavity, 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 substrate is bonding with piezoelectric chip, and the metal substrate 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, form the generator along pipe lengths stretching vibration, structure and technique is simple, low cost；Piezoelectric chip is only by the compression of range-controllable, and reliability is high；Easily improve generated energy by increasing piezoelectric vibrator number and length.
Description
Technical field
The utility model belongs to field of piezoelectric generation, is specifically related to a kind of piezo fluid generator, for oil and gas pipes prison
Examining system is powered.
Background technology
Have during the gas oil pipe leakage event causing because of spontaneous corrosion, nature force majeure, especially artificial pilferage etc.
Occur, not only cause huge economic loss, also cause serious pollution to its periphery natural environment simultaneously.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 being proposed or anti-theft monitoring alarm method are more ripe at technological layer,
But the application of current China 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 not replacing in time.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
Being rotated by fluid turbine and driving the generating of piezoelectric vibrator oscillator, structure is complicated, volume is big, is unsuitable for the relatively small pipe of diameter
Road；Meanwhile, in work, piezoelectric vibrator compound bending deforms, bears and alternately draw-compression, and when tension is excessive, piezoelectric chip is fragile
Broken, reliability is low.
Content of the invention
The limitation applied for a power supply difficult problem and the existing piezoelectric generating device of oil/gas pipe line monitoring, this practicality
A kind of piezo fluid generator of novel proposition.The utility model adopted implementation scheme is that and is provided with on the left of the dividing plate of main body greatly
Cylinder, right side are provided with two pieces of otic placodes being parallel to each other, and described two end part of lug plate connect through side plate；Dividing plate is provided with left boss and side
Plate is provided with right boss；It is arranged on the end of big cylinder with the cover plate of end cap of little cylinder through screw and form two and be interconnected
Neck chamber and abdominal cavity, little tube inner chamber be neck chamber, big tube inner chamber be abdominal cavity；The disk body of contact pick-up is placed in abdominal cavity, the bearing pin of contact pick-up
Stretching out from abdominal cavity through dividing plate, end part of pin shaft is provided with connecting plate through nut；Being cased with balancing spring on bearing pin, balancing spring two ends are divided
Do not act against on disk body and dividing plate；Piezoelectric vibrator two piezoelectric chips bonding with its unilateral institute by metal substrate are constituted；Two
The two ends of the metal substrate of piezoelectric vibrator are all separately mounted on left boss and right boss through screw and briquetting, and centre is all through screw
It is arranged on connecting plate with briquetting；It is flat construction that piezoelectric vibrator is installed under front nature and length is more than dividing plate and side plate
Between distance, piezoelectric vibrator is that warp architecture and piezoelectric chip bear compression after installing；It is in connecting plate left on piezoelectric vibrator
The piezoelectric vibrator that the part at right two ends respectively constitutes in generator unit I and generator unit II, generator unit I and generator unit II divides
Not rectified bridge is connected with the power circuit on circuit board.
When there being fluid to flow through, neck cavity fluid vibration, abdomen cavity 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 effective mass and the one-dimensional vibrational system of abdomen cavity fluid composition in neck chamber
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 replaces elongation and shorten, 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 compression, reliability is high.
In the utility model, for improving adaptive capacity to environment and the reliability of generator, under nominal flow rate and at connecting plate
When dynamic equilibrium position, generator unit I is identical with the state of generator unit II；Piezoelectric chip be 0.1mm～0.2mm PZT4,
Metal substrate is beryllium-bronze, and metal substrate 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 formed along the TRT of pipe lengths stretching vibration, structure and manufacture craft is simple, low cost；2. piezoelectric chip is only
Being operated under compressive stress state and compression range-controllable, reliability is high；3. it is easy to by increasing piezoelectric vibrator quantity and length
Method improve generated energy.
Brief description
Fig. 1 is the section of structure of generator in one preferred embodiment of the utility model；
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 one preferred embodiment of the utility model 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 be neck chamber C1, the inner chamber of big cylinder b1 be 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；It is cased with balancing spring d 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 unilateral bonding with it by metal substrate h1
Two piezoelectric chip h2 are constituted；The two ends of the metal substrate 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 nature
Be down flat construction and length L1 more than distance L2 between dividing plate b2 and side plate b5, piezoelectric vibrator h install after for warp architecture,
And piezoelectric chip h2 bears compression；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 producing 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 simultaneously 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, its internal pressure
Electricity wafer institute compression chord increases；During above-mentioned generator unit I and II replaces elongation and shorten, 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 phase restricts, so that it is guaranteed that piezoelectric chip bears rational compression all the time, reliability is high.
In the utility model, for improving the adaptive capacity to environment of generator, generating capacity and reliability, under nominal flow rate and
When connecting plate f is in dynamic equilibrium position, generator unit I is identical with the state of generator unit II；Piezoelectric chip h2 be 0.1mm～
The PZT4 of 0.2mm, metal substrate h1 are beryllium-bronze, and the ratio of the thickness of metal substrate h1 and piezoelectric chip h2 is 1～2.5.
Claims (1)
1. a piezo fluid generator, 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 abdominal cavity, 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 substrate
Two piezoelectric chips bonding with its unilateral institute are constituted, and the metal substrate 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 and under front nature is
Flat construction and length are more than dividing plate and interpleural distance, and piezoelectric vibrator is warp architecture after installing and piezoelectric chip bears
Compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625560.0U CN205681336U (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625560.0U CN205681336U (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205681336U true CN205681336U (en) | 2016-11-09 |
Family
ID=57430573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620625560.0U Expired - Fee Related CN205681336U (en) | 2016-06-15 | 2016-06-15 | A kind of piezo fluid generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205681336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429489A (en) * | 2018-05-22 | 2018-08-21 | 北京中微融通科技有限公司 | Vibration of building energy collecting device |
-
2016
- 2016-06-15 CN CN201620625560.0U patent/CN205681336U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429489A (en) * | 2018-05-22 | 2018-08-21 | 北京中微融通科技有限公司 | Vibration of building energy collecting device |
| CN108429489B (en) * | 2018-05-22 | 2024-01-23 | 北京中微融通科技有限公司 | Building vibration energy collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20170615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |