CN104079208B - A kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) and method - Google Patents
A kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) and method Download PDFInfo
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- CN104079208B CN104079208B CN201410335395.0A CN201410335395A CN104079208B CN 104079208 B CN104079208 B CN 104079208B CN 201410335395 A CN201410335395 A CN 201410335395A CN 104079208 B CN104079208 B CN 104079208B
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Abstract
The invention discloses a kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) and method.Described piezoelectric generating device comprises support, clamping structure and is stained with the composite piezoelectric bistable state plate of piezoelectric, and described composite piezoelectric bistable state plate clamping is on clamping structure, and composite piezoelectric bistable state plate is fixed on support by clamping structure.The method utilizing said apparatus to impact lower piezoelectric generating in low speed water is: adopt low speed water directly to impact composite piezoelectric bistable state plate, drive composite piezoelectric bistable state plate along with low speed water reciprocal transformation between two kinds of stable states, and then produce electric energy after making piezoelectric produce deformation and collect.Present invention achieves the function that low-speed waves can be converted into electric energy, have and implement the simple feature of structure, easy to use, practical, can be small low-consumption load and electric energy is provided.
Description
Technical field
The invention belongs to renewable energy power generation technical field, relate to a kind of energy collecting device and method, particularly a kind of device and method adopting the wave energy of the mode of piezoelectricity to low speed water to collect.
Background technology
Society energy shortage problem is more and more serious, makes increasing people start to pay close attention to renewable environmental energy, as wind energy, tidal energy, solar energy, wave energy etc.Piezoelectric has good power electric conversion properties, can realize the conversion of mechanical energy to electric energy, have a wide range of applications in collection of energy field.CN103354434A discloses a kind of bistable vibration in piezoelectric cantilever beam energy.CN103647475A provides a kind of broadband piezoelectric energy gathering apparatus.Chinese patent CN101951188 discloses a kind of the piezoelectric energy collection method and the device that utilize wind energy.Invent a kind of for from the piezo mechanical device of vehicle through recuperated energy in CN103003568A.For existing in the piezoelectric generating device of beam type, generally Strain Distribution is uneven, and make the potential that can not give full play to piezoelectric, generating efficiency is not high.Wave energy is the huge rechargeable energy that present on earth, and scientifically development and utilization is significant to alleviating energy crisis.CN102705147A discloses a kind of Wave energy converting device comprising guiding device, impeller unit, thrust bearing, power conversion output unit, floating box device and anchor.CN102562424A discloses a kind of wave energy capturing device.Though above-mentioned gathering-device efficiency is high, complex structure, can catch the wave energy of high frequency high amplitude, but unsatisfactory for the wave energy effect of low frequency short arc.
Summary of the invention
The object of this invention is to provide a kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) and method, under low speed water impact can be applied in, by piezoelectric element, wave energy be converted to electric energy, can power to low-power dissipation system.
The object of the invention is to be achieved through the following technical solutions:
A kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), comprise support, clamping structure and be stained with the composite piezoelectric bistable state plate of piezoelectric, described composite piezoelectric bistable state plate clamping is on clamping structure, and composite piezoelectric bistable state plate is fixed on support by clamping structure.
A kind of method utilizing above-mentioned piezoelectric generating device to generate electricity in low speed water impact lower piezoelectric, its step is as follows: adopt low speed water directly to impact composite piezoelectric bistable state plate, drive composite piezoelectric bistable state plate along with low speed water reciprocal transformation between two kinds of stable states, and then produce electric energy after making piezoelectric produce deformation and collect.
In the present invention, adopt this clamping structure, Composite Double stable state plate can be fixed simple and reliablely, thus support its reciprocal transformation.
In the present invention, described composite piezoelectric bistable state plate is symmetry bistable arc plate, and the shape of two kinds of stable states is the circular arc with same curvature, by the saltus step back and forth between two kinds of stable states of lower external applied load.Because bistable state plate is in the arc-shaped, therefore the strain of every block piezoelectric is identical, therefore can be driven by external applied load, make piezoelectric produce deformation along with the saltus step of bistable state plate, thus maximally utilise the generating potential of piezoelectric, improve generating efficiency.For obtaining the strain limit of piezoelectric thus obtaining maximum Conversion of Energy, can by the curvature of laying and size regulable control bistable state plate and size.
In the present invention, described piezoelectric is bondd by the mode of solidifying together when preparing bistable state plate, also can bond after cured again.In order to increase generating efficiency, upper and lower surface can paste piezoelectric, and it is identical in the quantity of upper and lower surface, position relative, and all piezoelectrics utilize wired in series, and generating efficiency can control by regulating the quantity of piezoelectric.
In the present invention, described piezoelectric can be piezoelectric ceramic, piezoelectric chip or piezoelectric membrane.As long as the piezoelectric with piezoelectric constant and high electromechanical coupling factor and dielectric constant all can be used for preparing composite piezoelectric bistable state plate of the present invention.
In the present invention, if the reinforcement carbon fiber in described composite material bistable state plate, due to electric conduction of carbon fiber, therefore whole bistable state plate can, as electrode, if reinforcement is glass fibre, then need to set up electrode.
In the present invention, the number of described composite piezoelectric bistable state plate is at least one, can pass through changes in demand, when composite piezoelectric bistable state plate is multiple, by its equidistant clamping on clamping structure.
In the present invention, described composite piezoelectric bistable state plate needs to carry out water-proofing treatment.
Due in the arc-shaped after the solidification of composite piezoelectric bistable state plate, therefore the strain of every block piezoelectric is identical, therefore can maximally utilise the generating potential of piezoelectric, improves generating efficiency.Present invention achieves the function that low-speed waves can be converted into electric energy, have and implement the simple feature of structure, easy to use, practical, can be small low-consumption load and electric energy is provided.Such as, piezoelectric generating device provided by the invention can be settled under bridge, utilize the electric energy produced to be Bridge Structure safety monitoring sensor power.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure schematic diagram of piezoelectric generating device of the present invention;
Fig. 2 is the operation principle schematic diagram of piezoelectric generating device of the present invention;
The schematic diagram of composite piezoelectric bistable state plate two kind stable states of Fig. 3 for adopting in the present invention;
Fig. 4 is composite piezoelectric bistable state plate piezoelectric ceramic arrangement schematic diagram in the present invention;
Fig. 5 is the schematic diagram of bistable state housing ply sequence.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described; but be not limited thereto; everyly technical solution of the present invention modified or equivalent to replace, and not departing from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
Embodiment one: as shown in Figure 1, the invention provides a kind of low speed water and impacts lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), comprise support 1, clamping structure 2, composite piezoelectric bistable state plate 3.
Adopt piezoelectric ceramic piece as piezoelectric 4 in present embodiment, 10 piezoelectric ceramic pieces are pasted onto the centre in composite piezoelectric bistable state plate 3 front, as shown in Figure 4, the same piezoelectric ceramic piece pasting identical number in the same position of composite piezoelectric bistable state plate 3 reverse side, wire is utilized to be together in series by all piezoelectric ceramic pieces, directly utilize composite piezoelectric bistable state plate 3 as an electrode, and with marine glue, monoblock composite piezoelectric bistable state plate 3 is carried out water-proofing treatment.
The quantity of the composite piezoelectric bistable state plate 3 described in present embodiment is 8, utilizes clamping structure 2 by distance parallel arrangement identical for composite piezoelectric bistable state plate 3 interval, as shown in Figure 2.Clamping structure 2 is utilized and is bolted on support 1.Whole device is placed in low speed water, the maximum percussion utilizing current in position of adjustment composite piezoelectric bistable state plate 3, as shown in Figure 2, solid arrow is that current carry out flow path direction, dotted arrow is current backflow direction, incoming flow makes composite piezoelectric bistable state plate 3 bend towards top in figure, and backflow makes composite piezoelectric bistable state plate 3 bend towards Figure below, therefore pressure composite piezoelectric bistable state plate 3 can be made to change between two kinds of stable states to and fro, and then make the continuous deformation of piezoelectric ceramic produce electric energy, realize the conversion to energy.Produced electric energy can be carried out storage recycling finally by rectification circuit.
Embodiment two: provide a kind of composite piezoelectric bistable state plate in present embodiment is flat rectangular plate before solidification, and be circular arc after solidification, have the stable state of two kinds of shapes after solidification, as shown in Figure 3, top is the first stable state, and below is the second stable state.Composite piezoelectric bistable state plate described in present embodiment adopts composite material and metal hybrid laying, solidifies, because residual thermal stress can form circular arc bi-stable effect after cooling at composite material solidification temperature.
Described laying is made up of composite material symmetric layups and metallic composite hybrid ply, and the both sides of composite material symmetric layups are the metallic composite hybrid ply of size symmetrical.
Described composite material symmetric layups is 90 ° and 0 ° of composite material symmetric layups, and wherein 90 ° of composite layers are in outside, and 0 ° of composite layer is in the middle of 90 ° of composite layers, and concrete overlay thickness can be changed by required curvature.
Described metallic composite hybrid ply is made up of 90 ° of composite layers, metal level, 90 ° of composite layers successively.
The gross thickness of 0 ° of described composite layer is identical with the thickness of metal level, and in two kinds of layings, 90 ° of layer thicknesses are identical simultaneously.
Described metallic composite hybrid ply and the size adjustable of composite material symmetric layups obtain desirable curvature.
Described composite material is carbon fiber resin composite material or glass fiber resin compound material.
Described metal is the light metals such as aluminum or aluminum alloy.
Embodiment three: in present embodiment, the concrete ply sequence of composite piezoelectric bistable state plate as shown in Figure 5, the top of figure is laying vertical view, and below is the profile of zones of different laying.Laying is divided into two regions, and I region is fibrous composite symmetric layups, and wherein 90 ° of fiber composite layer 5 are in outside, and 0 ° of fiber composite layer 6 is in centre, as [90
2/ 0
2/ 90
2]; II region is metallic fiber miscellaneous area, same 90 ° of fiber composite layer 5 in outside, metal Al layer 7 in centre, as [90
2/ Al/90
2].It should be noted that in I region, the thickness of 0 ° of fibrous composite laying should be identical with the thickness of II regional metal Al in order to keep consistency of thickness, and 90 ° of fiber composite layer are at two regions skin symmetric layups.And in order to ensure symmetry thus ensure to obtain two kinds of identical stable shapes, the size of the metallic fiber miscellaneous area II of both sides, fiber symmetric layups I region is identical symmetries.
Claims (7)
1. one kind is impacted lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) in low speed water, it is characterized in that described piezoelectric generating device comprises support, clamping structure and the composite piezoelectric bistable state plate being stained with piezoelectric, described composite piezoelectric bistable state plate clamping is on clamping structure, composite piezoelectric bistable state plate is fixed on support by clamping structure, described composite piezoelectric bistable state plate is symmetry bistable arc plate, adopt composite material and metal hybrid laying, described laying is made up of composite material symmetric layups and metallic composite hybrid ply, the both sides of composite material symmetric layups are the metallic composite hybrid ply of size symmetrical.
2. according to claim 1 in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that described composite material symmetric layups is 90 ° of composite materials and 0 ° of composite material symmetric layups, wherein 90 ° of composite layers are in outside, and 0 ° of composite layer is in the middle of 90 ° of composite layers; Described metallic composite hybrid ply is made up of 90 ° of composite layers, metal level, 90 ° of composite layers successively.
3. according to claim 2 in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that the gross thickness of described 0 ° of composite layer is identical with the thickness of metal level.
4. according to claim 1 in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that described composite material is carbon fiber resin composite material or glass fiber resin compound material.
5. according to claim 1 in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that the upper and lower surface of described composite piezoelectric bistable state plate pastes the identical piezoelectric of quantity in same position symmetry.
6. according to claim 1 in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that described piezoelectric is bondd by the mode of solidifying together when preparing composite piezoelectric bistable state plate, or bond after piezoelectricity bistable state plate to be composite solidification.
7. utilize device described in claim 1 to impact a method for lower piezoelectric generating in low speed water, it is characterized in that described method step is as follows:
Adopt low speed water directly to impact composite piezoelectric bistable state plate, drive composite piezoelectric bistable state plate along with low speed water reciprocal transformation between two kinds of stable states, and then make piezoelectric produce deformation and produce electric energy and collect.
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| CN201410335395.0A CN104079208B (en) | 2014-07-15 | 2014-07-15 | A kind of in low speed water impact lower piezoelectric Blast Furnace Top Gas Recovery Turbine Unit (TRT) and method |
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| CN104079208B true CN104079208B (en) | 2016-01-27 |
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| CN104539191B (en) * | 2014-12-19 | 2016-11-09 | 西南交通大学 | A kind of electric power system based on seawave power generation |
| CN104566168B (en) * | 2014-12-19 | 2016-10-12 | 西南交通大学 | A kind of floating lamp |
| CN112833375A (en) * | 2021-01-12 | 2021-05-25 | 万锐 | Thermal power generation boiler capable of recovering heat energy |
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| US4387318A (en) * | 1981-06-04 | 1983-06-07 | Piezo Electric Products, Inc. | Piezoelectric fluid-electric generator |
| JP4248574B2 (en) * | 2006-11-15 | 2009-04-02 | 英男 須長 | Tidal power generator |
| CA2707177A1 (en) * | 2006-12-01 | 2008-06-05 | Humdinger Wind Energy, Llc | Generator utilizing fluid-induced oscillations |
| CN102226503B (en) * | 2011-03-15 | 2013-03-06 | 上海大学 | Lighting system using vibration energy piezoelectric generation |
| CN103296923B (en) * | 2013-06-04 | 2016-01-06 | 中国科学院上海硅酸盐研究所 | Exempt from magnet bistable state PZT (piezoelectric transducer) |
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