CN104485844B - The microminiature TRT powered for pepe monitoring system - Google Patents
The microminiature TRT powered for pepe monitoring system Download PDFInfo
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- CN104485844B CN104485844B CN201510007204.2A CN201510007204A CN104485844B CN 104485844 B CN104485844 B CN 104485844B CN 201510007204 A CN201510007204 A CN 201510007204A CN 104485844 B CN104485844 B CN 104485844B
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- pressing plate
- magnet
- transducer
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- fixed disc
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000035882 stress Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of microminiature TRT powered for pepe monitoring system, belong to new energy field.Fixed disc is arranged on insides of pipes, and circular pressing plate center studs with bearing；There is shoulder hole on the right side of fixed disc, in shoulder hole, stud with circuit board and sensor；Circular pressing plate is connected formation annular seal space with fixed disc, built with transducer；Fixed disc forms a chute with circular pressing plate boss, includes Magnet；Metal basal board one end is arranged in fixed disc and circle circle pressing plate, and the other end is fixed on Magnet, protrudes and be bonded with piezoelectric patches outside metal basal board, and the bonding piezoelectric patches of two substrates and institute constitutes transducer；Bearing inner race is provided with main shaft, and front-end of spindle has blade；Main shaft end is embedded with annular magnet, and annular magnet and Magnet opposite pole in chute are near installing, and annular magnet is fixed by circular pressing plate, and circular pressing plate is fixed on shaft end by screw.Characteristic and advantage: piezoelectric patches only tension stress, reliability is high；Sliding groove structure stability is high, sends out power supply capacity strong.
Description
Technical field
The invention belongs to new forms of energy and technical field of power generation, be specifically related to a kind of for pepe monitoring system power small
Type TRT.
Background technology
At present, laying remote conveying oil and gas pipes is the energy conveying engineering that China is important, but due to pipe leakage and people
Huge resource and economic loss is caused to country for stealing.By arranging monitoring joint in remote conveying oil and gas pipes different distance
Point is most important, but traditional remote conveying oil and gas pipes monitoring system is mainly powered by following several ways: as laid electricity
Cable, this kind of method cost be high, not easy-maintaining, and cable once produces aging, fracture, will make multiple monitoring node device cannot work
Make, and easily stolen by lawless person；Utilizing battery is also a kind of tradition power supply mode, but due to limited battery life, needs and
The shortcomings such as Shi Genghuan, make the application of wireless sensing monitoring device be restricted.Therefore, for making pepe monitoring system be able to well
Work, it is necessary to solve its powerup issue.In life, self-contained electric system is the most well applied in many fields, fluid
Kinetic energy, as a kind of free of contamination novel energy, is widespread in nature, and fluid power-generation has become world today's main flow skill
One of art, has pollution-free, utilization rate advantages of higher, the design microminiature TRT with fluid dynamic energy as the energy, it has also become
The important trend that pepe monitoring system is powered.
Summary of the invention
For pipe-line monitoring the self-powered demands status of system and existing electric power system exist all
Drawback, the present invention proposes a kind of microminiature TRT powered for pepe monitoring system.
The present invention adopts the technical scheme that: fixed disc is fixed by screws on the boss of insides of pipes, circular pressure
Plate center is embedded with bearing；It is provided with shoulder hole on the right side of fixed disc, in shoulder hole, studs with circuit board and sensor respectively；Circular pressing plate
Being connected with fixed disc by rivet at boss, fixed disc forms a chute with the boss of circular pressing plate, lays one in chute
Magnet, circular pressing plate and fixed disc shape annular seal space；Described annular seal space passes through screw built with transducer, one end of metal basal board
Being fixed in fixed disc and circular pressing plate, the other end is fixed by screws on above-mentioned Magnet, on described metal basal board outside
Protrusion is bonded with piezoelectric patches, collectively forms transducer by bonding piezoelectric patches on two substrates of rivet and described substrate,
On transducer, on different substrate, two piezoelectric patches are connected by wire group；On transducer, metal basal board and piezoelectric patches pass through wire respectively
Group is connected with circuit board；The inner ring of bearing is provided with main shaft, and front-end of spindle is provided with blade；Main shaft end is inlaid with annular magnetic
Ferrum, annular magnet and Magnet opposite pole in chute are near installing, and annular magnet is fixed by pressing plate, and described pressing plate is fixed by screw
At shaft end.
In work process, when rotating under impeller is at fluid matasomatism, the annular magnet being rotated on axle does circular-rotation,
Thus relatively rotate with the Magnet in chute；Install, certain owing to annular magnet and Magnet are that opposite pole is close
Under magneticaction, transducer tension, piezoelectric patches compression chord on transducer；When annular magnet and Magnet cycle rotation, because of ring
Shape Magnet endoporus is evenly provided with spline and makes the magnetic field intensity difference of its wall thickness not grade, i.e. circumferencial direction each point, thus described
In annular magnet rotation process and on transducer the captivation between Magnet alternately increase and reduce, i.e. pulling force suffered by transducer
And the compressive stress suffered by piezoelectric patches alternately increases and reduces, will machinery during piezoelectric patches institute compression chord alternate
Can be converted into electric energy, this is power generation process；Generated electricity is connected to circuit board by wire group, and circuit board is provided with energy storage
Element, is sensor energy supply by energy-storage travelling wave tube.
In the present invention, for improving the generating capacity of transducer, avoiding piezoelectric patches to damage because of tension stress effect, it should be ensured that
When transducer is not by External Force Acting, non-telescope deformation, on the metal basal board of transducer, the least radius of circular arc external surface is R=h
{α+0.5[α2(1-β)-1-ηEp/Tp1-α]/[(1-β)] }, in chute, the minimum range on magnet movement direction is D=[L-2R
Sin (0.5L/R)] n, whereinα=hm/ h, h=hm+hp, hp、
hmIt is respectively piezoelectric patches and the thickness of metal basal board, β=Em/Ep, Ep、EmIt is respectively piezoelectric patches and the Young's modulus of metal basal board,TpBeing respectively electromechanical coupling factor and the allowable tensile stress of piezoelectric, L is the arc length of single circular arc on metal basal board, and n is
Circular arc quantity on single metal substrate.
The characteristic of the present invention and advantage: the 1. pre-bending piezoelectric patches iso-stress deformation of the present invention, be subjected only to action of compressive stress, can
High by property；2. the use of sliding groove structure, deforms controlled, and stability is high；3. transducer architecture is novel, and configuration is reasonable, power supply capacity
By force.
Accompanying drawing explanation
Fig. 1 is the section of structure of microminiature TRT in a preferred embodiment of the present invention；
Fig. 2 is the A-A view of Fig. 1；
Fig. 3 is enlarged drawing and the top view of transducer；
Detailed description of the invention
Fixed disc 2 is fixed by screws on the boss 1a inside pipeline 1, and circular pressing plate 2 center is embedded with bearing 8；Gu
Determine to be provided with on the right side of plectane 2 shoulder hole 2b, in shoulder hole 2b, stud with circuit board 4 and sensor S respectively；At circular pressing plate 5 boss 5b
Being connected with fixed disc 2 by rivet, fixed disc 2 forms a chute Q with boss 2a and 5a of circular pressing plate 5, peace in chute Q
Put a Magnet 9, circular pressing plate 5 and fixed disc 2 shape annular seal space P；Described annular seal space P built with transducer 6, metal basal board 12
One end 12a is fixed by screws in fixed disc 2 and circular pressing plate 5, and other end 12b is fixed by screws in above-mentioned Magnet 9
On, the outer protrusion on described metal basal board 12 is bonded with piezoelectric patches 13, by two substrates 12 of rivet and described substrate
Bonding piezoelectric patches 13 collectively forms transducer 6, and on transducer 6, on different substrate, two piezoelectric patches are connected by wire group L1；Change
On energy device 6, metal basal board 12 is connected with circuit board 4 by wire group L2 respectively with piezoelectric patches 13；The inner ring of bearing 8 is provided with master
Axle 10, main shaft 10 is provided with blade 14 on front end；Main shaft 10 end 10a is inlaid with annular magnet 11, annular magnet 11 and chute Q
Middle Magnet 9 opposite pole is near installing, and annular magnet 11 is fixed by pressing plate 7, and described pressing plate 7 is fixed on axle 10 end by screw
10a。
In the present invention, utilize piezoelectric transducer 6 that the kinetic energy that oil gas flows is converted into electric energy, it is not necessary to lay cable or electricity
Pond can provide reliable, sufficient energy supply for gas oil pipe leakage and anti-theft monitoring system.Working method is: when impeller 14
When rotating under fluid matasomatism, the annular magnet 11 being rotated on axle 10 does circular-rotation, thus with the Magnet 9 in chute Q
Relatively rotate；Owing to annular magnet 11 and Magnet 9 are that opposite pole is near installation, under certain magneticaction, transducing
Device 6 tension, piezoelectric patches 13 compression chord on transducer 6；When annular magnet 11 and Magnet 9 cycle rotation, because of annular magnet 11
Endoporus is evenly provided with spline make its wall thickness not wait, i.e. the magnetic field intensity of circumferencial direction each point different, therefore described annular magnetic
In ferrum 11 rotation process and on transducer 6 captivation between Magnet 9 alternately increase and reduce, i.e. pulling force suffered by transducer 6
And the compressive stress suffered by piezoelectric patches 13 alternately increases and reduces, will during 13 compression chord alternate of piezoelectric patches
Mechanical energy is converted into electric energy, and this is power generation process；Generated electricity is connected to circuit board 4 by wire group L2, and circuit board 4 sets
It is equipped with energy-storage travelling wave tube, is sensor S energy supply by energy-storage travelling wave tube.
In the present invention, for improving the generating capacity of transducer 6, avoiding piezoelectric patches 13 to damage because of tension stress effect, should
When guaranteeing transducer 6 not by External Force Acting, non-telescope deformation, the smaller part of circular arc external surface on the metal basal board 12 of transducer 6
Footpath is R=h{ α+0.5 [α2(1-β)-1-ηEp/Tp1-α]/[(1-β)] }, the minimum range in Magnet 9 direction of motion in chute Q
For D=[L-2R sin (0.5L/R)] n, whereinα=hm/ h, h
=hm+hp, hp、hmIt is respectively piezoelectric patches 13 and the thickness of metal basal board 12, β=Em/Ep, Ep、EmIt is respectively piezoelectric patches 13 and metal
The Young's modulus of substrate 12,TpBeing respectively electromechanical coupling factor and the allowable tensile stress of piezoelectric, L is metal basal board 12
The arc length of upper single circular arc, n is the circular arc quantity on single metal substrate 12.
Claims (1)
1. the microminiature TRT powered for pepe monitoring system, it is characterised in that: fixed disc is solid by screw
Being scheduled on the boss of insides of pipes, circular pressing plate center is embedded with bearing；It is provided with shoulder hole, on the right side of fixed disc in shoulder hole respectively
Stud with circuit board and sensor；It is connected with fixed disc by rivet at circular pressing plate boss, fixed disc and circular pressing plate
Boss forms a chute, lays a Magnet in chute, and circular pressing plate forms annular seal space with fixed disc；Described annular seal space built with
Transducer, one end of metal basal board is fixed by screws in fixed disc and circular pressing plate, and the other end is fixed by screws in
On above-mentioned Magnet, the outer protrusion on described metal basal board is bonded with piezoelectric patches, by two substrates of rivet and described substrate
Upper bonding piezoelectric patches collectively forms transducer, and on transducer, on different substrate, two piezoelectric patches are connected by wire group；Transducer
Upper metal basal board is connected with circuit board by wire group respectively with piezoelectric patches；The inner ring of bearing is provided with main shaft, on front-end of spindle
Blade is installed；Main shaft end is inlaid with annular magnet, and annular magnet and Magnet opposite pole in chute are near installation, annular magnetic
Ferrum is fixed by pressing plate, and described pressing plate is fixed on shaft end by screw；
For improving the generating capacity of transducer, avoiding piezoelectric patches to damage because of tension stress effect, it should be ensured that transducer is not by outward
When power effect, non-telescope deformation, on the metal basal board of transducer, the least radius of circular arc external surface is R=h{ α+0.5 [α2(1-
β)-1-ηEp/tp1-α]/[(1-β)] }, in chute, the minimum range on magnet movement direction is D=[L-2R sin (0.5L/R)]
N, whereinα=hm/ h, h=hm+hp, hp、hmIt is respectively piezoelectricity
Sheet and the thickness of metal basal board, β=Em/Ep, Ep、EmIt is respectively piezoelectric patches and the Young's modulus of metal basal board,TpIt is respectively
The electromechanical coupling factor of piezoelectric and allowable tensile stress, L is the arc length of single circular arc on metal basal board, and n is single metal base
Circular arc quantity on plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007204.2A CN104485844B (en) | 2015-01-07 | 2015-01-07 | The microminiature TRT powered for pepe monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007204.2A CN104485844B (en) | 2015-01-07 | 2015-01-07 | The microminiature TRT powered for pepe monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104485844A CN104485844A (en) | 2015-04-01 |
| CN104485844B true CN104485844B (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510007204.2A Expired - Fee Related CN104485844B (en) | 2015-01-07 | 2015-01-07 | The microminiature TRT powered for pepe monitoring system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059390B (en) * | 2016-06-15 | 2017-10-20 | 浙江师范大学 | A kind of permanent pipe stream piezoelectric generator of self-excited vibration formula |
| CN106100444B (en) * | 2016-06-15 | 2017-10-20 | 浙江师范大学 | A kind of piezo fluid generator |
| CN105958866B (en) * | 2016-06-15 | 2017-12-15 | 浙江师范大学 | A kind of piezoelectric type hydrogenerator for river monitoring |
| CN107356293B (en) * | 2017-08-17 | 2023-07-28 | 浙江师范大学 | Tap water meter |
| CN107356294B (en) * | 2017-08-17 | 2023-07-28 | 浙江师范大学 | Remote running water meter |
| US11296521B2 (en) * | 2017-10-20 | 2022-04-05 | Sew-Eurodrive Gmbh & Co. Kg | System for contactlessly transmitting electrical energy to a mobile part which can be moved on the floor of a system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7692559B2 (en) * | 2004-06-19 | 2010-04-06 | Face International Corp | Self-powered switch initiation system |
| EP1803168A4 (en) * | 2004-10-21 | 2009-05-20 | Michelin Soc Tech | A miniaturized piezoelectric based vibrational energy harvester |
| US8674531B1 (en) * | 2012-08-30 | 2014-03-18 | Eastman Kodak Company | Changing radius generator |
| CN103326618B (en) * | 2013-06-06 | 2015-11-18 | 大连理工大学 | A kind of underwater rotary type piezoelectric power generation device |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Shuyun Inventor after: Yan Mengjia Inventor after: Fu Jiawei Inventor after: Wen Huan Inventor after: Han Junwu Inventor before: Yan Mengjia Inventor before: Wang Shuyun Inventor before: Wu Weijing Inventor before: Liu Kun Inventor before: Fu Jiawei Inventor before: Wen Huan Inventor before: Han Junwu |
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Granted publication date: 20161130 Termination date: 20180107 |
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