CN111691321B - Use paper folding structure friction nanometer generator prevent wind barrier - Google Patents
Use paper folding structure friction nanometer generator prevent wind barrier Download PDFInfo
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- CN111691321B CN111691321B CN202010475352.8A CN202010475352A CN111691321B CN 111691321 B CN111691321 B CN 111691321B CN 202010475352 A CN202010475352 A CN 202010475352A CN 111691321 B CN111691321 B CN 111691321B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
- E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/06—Influence generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a wind-proof barrier for a friction nano generator by using a paper folding structure, wherein a friction nano generating set and an air speed sensor are arranged on the outer side of a wind-proof barrier main body, a paper folding structure for buffering the pressure of side wind is arranged in the friction nano generating set, a warning device is also arranged on the wind-proof barrier main body, the air speed sensor is connected with a processor, the output end of the friction nano generating set is respectively connected to the air speed sensor and the warning device through a controllable switch so as to respectively provide electric energy for the air speed sensor and the warning device, and the processor is connected with the controllable switch so as to control the on and off of the controllable switch. Compared with the prior art, the friction nanometer power generation device and the warning device with the paper folding structure are arranged on the wind-proof barrier, so that the wind-proof barrier has the advantages of buffering the side wind pressure borne by the wind-proof barrier strips and converting the wind energy borne by the wind-proof barrier into electric energy, can effectively warn vehicles on the bridge pavement of overlarge wind speed, and avoids safety accidents caused by side wind.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a windproof barrier for a friction nano generator by using a paper folding structure.
Background
The bridge is an important component in a modern transportation system, and is positioned on bridge roads in areas with frequent strong wind, such as roads in areas of Xinjiang, inner Mongolia, coastal areas and the like, and due to geographical positions and the like, the wind speed of the bridge road surface is far higher than that of other road surfaces, so that the problem of crosswind driving safety of vehicles running on the road is obvious. In order to reduce the influence of crosswind on the bridge deck driving safety, avoid the occurrence of vehicle sideslip or side-tipping accidents, improve the bridge deck driving environment and improve the effective passing time of the bridge, the wind-proof barriers are generally required to be arranged on the two sides or the central separation strip of the bridge. The wind barrier is additionally arranged, so that the wind speed of the bridge deck can be reduced, the driving comfort of the bridge deck is improved, and the main means for improving the use function of the bridge is provided.
The existing wind barrier mostly adopts a strip type wind barrier structure of 'steel stand columns + barrier strips', wherein the steel stand columns play a supporting role, the wind barrier strips play a role in wind shielding, and the wind shielding effect of the wind barrier can be controlled by adjusting the width, the interval and the number of the wind barrier strips. As shown in fig. 1, the windbreak main body 7 mainly comprises a windbreak upright post 1, windbreak strips 2, windbreak guy cables 3, windbreak clamping plates and damping rubber sleeves 4, wherein the windbreak upright post 1 is a columnar member for fixing the windbreak strips 2; the wind barrier strip 2 is fixed between the wind barrier upright posts 1 and is a horizontal strip-shaped stress component for reducing the side wind load; the windbreak inhaul cable 3 is used for ensuring the overall stability of the bridge windbreak, is made of stainless steel wires and the like, and needs to be prestressed; the air barrier clamping plate is used for clamping the air barrier strips 2 and is fixed on the air barrier upright posts 1 by adopting high-strength bolts; the damping rubber sleeve 4 is used for reducing the vibration of the wind barrier strip 2.
In practical application, when strong wind weather appears, the windbreak strip can receive great crosswind pressure, so that the whole windbreak main body is easy to vibrate and damage, and even can drive the whole vibration of the bridge. In addition, the existing wind-proof barrier cannot generate a warning effect on the bridge deck running vehicles, and when the wind speed is high, the running vehicles cannot be effectively reminded of paying attention to safe running.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the windproof barrier using the paper folding structure to rub the nano generator.
The purpose of the invention can be realized by the following technical scheme: the utility model provides an use paper folding structure friction nanometer generator prevent wind barrier, includes and prevents wind the barrier main part, prevent wind the outside of barrier main part and install friction nanometer power generation facility and air speed sensor, friction nanometer power generation facility is used for converting wind energy into the electric energy, the inside paper folding structure that is used for buffering crosswind pressure and increase friction area that is equipped with of friction nanometer power generation facility, prevent wind and still install warning device in the barrier main part, air speed sensor is connected with the treater, friction nanometer power generation facility's output is connected to air speed sensor respectively, is connected to warning device through controllable switch to provide the electric energy respectively and give air speed sensor and warning device, the treater is connected with controllable switch, with the switching on and the shutoff of control controllable switch.
Further, friction nanometer power generation facility specifically is perpendicular contact disconnect-type friction nanometer power generation facility, friction nanometer power generation facility still includes frictional layer, TENG (Triboelectric Nanogenerators, friction nanometer generator) circuit and the electrode that mutual symmetry set up, the paper folding structure is located between the electrode, the frictional layer covers the surface at the paper folding structure, the input and the electrode of TENG circuit are connected, the output of TENG circuit is connected to wind speed sensor respectively, is connected to warning device through controllable switch.
Furthermore, the output end of the TENG circuit is sequentially connected with a full-wave rectifying circuit and a filter capacitor, and the filter capacitor is respectively connected to the wind speed sensor and the warning device through the controllable switch.
Furthermore, the negative electrode of the friction layer is made of a perfluoroalkyl material, and the positive electrode of the friction layer is made of an elastic latex material.
Furthermore, the electrode is made of metal aluminum.
Further, the paper folding structure adopts a honeycomb-like cell wall form to generate buffering and pressure resistance effects.
Further, the friction nanometer power generation device is installed on the outer side of the wind barrier main body in a simple supporting mode.
Further, the warning device is installed on the inner side of the wind barrier strip.
Further, the warning device comprises a plurality of light emitting diodes.
Further, the light emitting diode emits yellow light flickering at a preset frequency after being electrified.
The specific working principle of the invention is as follows: when no crosswind acts, the electrodes of the friction nano power generation device are in a separation state, and the friction nano power generation device does not output electric energy;
when crosswind acts, crosswind pressure acts on a friction nanometer device positioned on the outer side of a wind barrier strip, a paper folding structure is compressed, the paper folding structure is in contact friction with a friction layer, through frictional electrification and electrostatic induction, a potential difference is generated between two electrodes, a periodic contact separation process between the electrodes is formed along with irregular change of the crosswind pressure, a TENG circuit converts wind energy into electric energy according to the electric energy, alternating current is output and converted into direct current through a full-wave rectifying circuit, the direct current is output to a wind speed sensor through a filter capacitor, the wind speed sensor detects the current wind speed of the crosswind, if a processor judges whether the current wind speed value of the crosswind exceeds a preset wind speed threshold value, if yes, a controllable switch is controlled to be conducted, and after the warning system is electrified from the friction nanometer device, flashing yellow light is emitted, therefore, the driving vehicle on the bridge pavement is reminded of driving safely when the current wind speed is too high; if not, the controllable switch is controlled to be turned off, the warning system loses power, and the driving vehicles on the bridge pavement are not reminded.
Compared with the prior art, the invention has the following advantages:
the friction nanometer power generation device and the warning device are combined, crosswind on the wind barrier strips is converted into electric energy by the friction nanometer power generation device, the electric energy is output to the warning device, and therefore the pressure of the crosswind on the wind barrier of the bridge can be reduced through buffering of the paper folding structure, and meanwhile warning effect can be achieved on vehicles running on the road surface of the bridge.
The friction layer is covered on the outer surface of the paper folding structure, so that the contact surface area of the friction layer is effectively increased, the contact friction electrification and electrostatic induction effects are obviously amplified, an area capable of generating induction charges is formed, the energy conversion efficiency is enhanced, and the side wind on the windbreak can be effectively converted into electric energy.
The current crosswind speed is collected in real time through the wind speed sensor, and the processor is used for judging the dangerous wind speed, so that whether the warning device is electrified or not is controlled, and the warning device can timely and reliably remind a bridge road surface running vehicle to pay attention to safe running.
Drawings
FIG. 1 is a schematic view of a windbreak body;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of a friction nano-generator according to the present invention;
FIG. 4 is a schematic diagram of the TENG circuit of the present invention;
the notation in the figure is: 1. the wind barrier comprises wind barrier columns, 2, wind barrier strips, 3, a wind barrier inhaul cable 4, a wind barrier clamping plate, a damping rubber sleeve, 5, a bridge deck, 6, a bridge guardrail, 7, a wind barrier main body, 8, a friction nanometer power generation device, 9, a connecting lead, 10, a wind speed sensor, 101, a processor, 11, a controllable switch, 12, a warning device, 13, a paper folding structure, 14, an electrode, 15, a friction layer, 16 and a TENG circuit.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
A wind-proof barrier using a paper folding structure to rub a nanometer generator comprises a wind-proof barrier main body 7 (the specific structure is shown in figure 1, the structure is prior art), the inner side of the wind-proof barrier main body 7 faces the road surface of a bridge, the outer side of the wind-proof barrier main body 7 faces the outer areas of two sides of the bridge, as shown in figure 2, a friction nanometer generating set 8 is installed on the outer side of the wind-proof barrier main body 7, a warning device 12 is installed on the inner side of the wind-proof barrier main body 7, and an air speed sensor 10, a processor 101 and a controllable switch 11 are further installed on the wind-proof barrier main body 7, wherein the friction nanometer generating set 8 is respectively connected to the air speed sensor 10 and the controllable switch 11 through a wire 9, the air speed sensor 10 is connected with the processor 101, the processor 101 is connected with the controllable switch 11, the controllable switch 11 is connected to the warning device 12, namely the friction nanometer generating set 8 provides electric energy for the air speed sensor 10, the processor 101 controls the on and off of the controllable switch 11 according to the wind speed value detected by the wind speed sensor 10, so as to control whether the warning device 12 is powered from the friction nanometer power generation device, the wind speed sensing device 10 detects real-time wind speed, when the measured wind speed is in a normal range, the controllable switch 11 is turned off, and when the wind speed exceeds a preset limit value, the controllable switch 11 is turned on, so that the warning device 12 installed on the inner side of the wind barrier strip is powered to start working.
Specifically, the structure of the friction nano-generator 8 is shown in fig. 3, the whole friction nano-generator 8 adopts a vertical contact separation type working mode, utilizes the coupling effect between friction electrification and electrostatic induction to generate electric energy, and mainly comprises a paper folding structure 13, electrodes 14, a friction layer 15 and a TENG circuit 16, wherein the electrodes 14, the friction layer 15 and the TENG circuit are symmetrically arranged, the paper folding structure 13 adopts a honeycomb-like cell wall form and can provide good buffer capacity and pressure resistance so as to buffer the crosswind pressure on the windbreak and increase the friction area, the friction layer 15 adopts Perfluoroalkyl (PFA) as a negative electrode material, elastic latex as a positive electrode material, metal aluminum (Al) as an electrode, the friction layer 15 covers the paper folding structure 13, the paper folding structure 13 can effectively increase the contact surface area of the friction layer 15 so as to remarkably amplify the capacitance change of the contact friction electrification and the electrostatic induction, forming a region where induced charges can be generated. Under the condition of no wind force action, the electrode 14 of the friction nanometer power generation device is in a separation state; when wind force acts, under the action of cross wind pressure, the paper folding structure 13 is folded and compressed, the paper folding structure 13 is in contact friction with the friction layer 15, according to the principle of friction electrification and electrostatic induction, the upper electrode 14 and the lower electrode 14 generate potential difference, the periodic contact separation process of the electrodes 14 is formed through irregular cross wind pressure, the conversion of wind energy to electric energy is realized through the TENG circuit 16, and the power is supplied to the wind speed sensor 10 and the warning device 12 through the connecting lead 9, as shown in figure 4, the output end of the TENG circuit 16 firstly passes through the full-wave rectifying circuit, the alternating current is converted into the direct current, and then the direct current is filtered through the capacitor, so that stable and gentle output current is obtained.
The invention combines the paper folding technology and the friction nano power generation technology to be applied to the windbreak, and the friction nano power generation technology based on Maxwell displacement current has attracted extensive attention since the first brand-open corner in 2012. The friction nano power generation converts mechanical energy into electric energy by utilizing the coupling effect between friction electrification and electrostatic induction, has the advantages of low cost, rich material selection and the like, has great application prospect in a microelectronic low-power-consumption system and a stretchable energy generation solution, has high open-circuit voltage and instantaneous energy conversion efficiency which is far higher than other mechanical energy collection technologies such as piezoelectricity, magnetoelectricity and the like, and is a road energy collection technology with great prospect; the paper folding technology is an emerging technology in recent years, and through mathematical derivation and proof, paper folding configurations with different rigidity, specific surface area and elasticity can be designed and manufactured, and the paper folding technology has many applications in the aspects of space compression utilization and information storage. The friction nanometer generator and the paper folding technology are comprehensively applied, the energy conversion efficiency and the output power of the traditional friction nanometer power generation can be enhanced, better energy recovery and power supply are realized, and the friction nanometer power generation device has a great application prospect in the aspects of power generation and self power supply. The friction nano generator using the paper folding technology is simple in structure and light in weight, so that the friction nano generator is arranged on the outer side of the bridge wind-proof barrier and cannot influence the aerodynamic appearance of the main beam streamline.
Therefore, the windproof barrier for the bridge is applied to practice, the stress of the windproof barrier for the bridge can be reduced by using the paper folding structure, meanwhile, a large amount of wind energy wasted on the windproof barrier originally can be converted into electric energy by combining friction nano power generation, the generated electric energy can be directly used for a warning lamp panel to prompt a passing vehicle to pay attention to safety, and the windproof barrier has the advantages of buffering the side wind pressure borne by a wind barrier strip and converting the wind energy borne by the windproof barrier into the electric energy. The design of the invention has the function of early warning whether the wind speed on the bridge reaches the critical dangerous value, when the measured wind speed is at the dangerous value, the light-emitting diodes arranged on the inner sides of the wind barrier strips are controlled to emit light for warning, the vehicle running on the bridge is early warned in advance, the occurrence of accidents caused by side wind is reduced, and the invention has important function in future intelligent and safe bridge engineering.
Claims (7)
1. The utility model provides an use windbreak of paper folding structure friction nanometer generator, includes windbreak main part (7), windbreak main part (7) mainly comprises windbreak stand column (1), windbreak strip (2), windbreak cable (3), windbreak splint and damping rubber sleeve (4), its characterized in that, friction nanometer power generation facility (8) and wind speed sensor (10) are installed to the outside of windbreak main part (7), friction nanometer power generation facility (8) are used for converting wind energy into electric energy, the inside paper folding structure (13) that are used for buffering crosswind pressure and increase frictional area that is equipped with of friction nanometer power generation facility (8), paper folding structure (13) adopt type honeycomb cell wall form to produce buffering and resistance to compression effect, still install warning device (12) on windbreak main part (7), wind speed sensor (10) are connected with treater (101), the output end of the friction nanometer power generation device (8) is respectively connected to the wind speed sensor (10) and the warning device (12) through a controllable switch (11) so as to respectively provide electric energy for the wind speed sensor (10) and the warning device (12), and the processor (101) is connected with the controllable switch (11) so as to control the on and off of the controllable switch (11);
the friction nanometer power generation device (8) is specifically a vertical contact separation type friction nanometer power generation device (8), the friction nanometer power generation device (8) also comprises a friction layer (15), a TENG circuit (16) and electrodes (14) which are symmetrically arranged, the paper folding structure (13) is positioned between the electrodes (14), the friction layer (15) covers the outer surface of the paper folding structure (13), the input end of the TENG circuit (16) is connected with the electrode (14), the output end of the TENG circuit (16) is respectively connected to the wind speed sensor (10) and the warning device (12) through the controllable switch (11), the output end of the TENG circuit (16) is sequentially connected with a full-wave rectifying circuit and a filter capacitor, the filter capacitors are respectively connected to the wind speed sensor (10) and the warning device (12) through the controllable switch (11);
the specific working principle of the windproof barrier is as follows: when no crosswind acts, the electrodes (14) of the friction nano power generation device (8) are in a separation state, and the friction nano power generation device (8) does not output electric energy;
when crosswind acts, crosswind pressure acts on a friction nanometer power generation device (8) positioned on the outer side of the wind barrier strip (2), the paper folding structure (13) is compressed, the paper folding structure (13) is in contact friction with the friction layer (15), through friction electrification and electrostatic induction, a potential difference is generated between the two electrodes (14), a periodic contact separation process between the electrodes (14) is formed along with the irregular change of the crosswind pressure, the TENG circuit (16) converts wind energy into electric energy according to the electric energy, outputs alternating current, the alternating current is converted into direct current through the full-wave rectification circuit, the stable direct current is output through the filter capacitor, the direct current is output to the wind speed sensor (10), the wind speed sensor (10) detects the current crosswind speed, and if the processor (101) judges whether the current crosswind speed value exceeds a preset wind speed threshold value or not, if the wind speed is judged to be over-high, the controllable switch (11) is controlled to be conducted, and the warning device (12) emits flickering yellow light after the friction nano power generation device (8) is powered on, so that the driving vehicle on the bridge road surface is reminded of driving safely due to the fact that the current wind speed is over-high; if not, the controllable switch (11) is controlled to be turned off, and the warning device (12) loses power and does not remind the running vehicles on the bridge pavement.
2. The windbreak of claim 1, wherein the negative electrode of the friction layer (15) is made of perfluoroalkane, and the positive electrode of the friction layer (15) is made of elastic latex.
3. The windbreak of a triboelectric nanogenerator using origami structure according to claim 1, characterized in that the electrodes (14) are made of metallic aluminium.
4. The windbreak using origami to rub nanogenerator according to claim 1, characterized in that the triboelectric nanogenerator device (8) is mounted in a simple form on the outside of the windbreak body (7).
5. The windbreak using origami to rub a nanogenerator according to claim 1, wherein the warning device (12) is mounted inside the windbreak strip (2).
6. The windbreak using origami to rub a nanogenerator according to claim 1, wherein the warning device (12) comprises a plurality of light emitting diodes.
7. The windbreak using origami to rub a nanogenerator according to claim 6, wherein the light emitting diode emits yellow light that flickers at a predetermined frequency when energized.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210424924.9A CN115217044B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with friction nano power generation device |
| CN202010475352.8A CN111691321B (en) | 2020-05-29 | 2020-05-29 | Use paper folding structure friction nanometer generator prevent wind barrier |
| CN202210424792.XA CN115262435B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with paper folding structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010475352.8A CN111691321B (en) | 2020-05-29 | 2020-05-29 | Use paper folding structure friction nanometer generator prevent wind barrier |
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| CN202210424792.XA Division CN115262435B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with paper folding structure |
| CN202210424924.9A Division CN115217044B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with friction nano power generation device |
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| CN111691321A CN111691321A (en) | 2020-09-22 |
| CN111691321B true CN111691321B (en) | 2022-05-17 |
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| CN202010475352.8A Active CN111691321B (en) | 2020-05-29 | 2020-05-29 | Use paper folding structure friction nanometer generator prevent wind barrier |
| CN202210424792.XA Active CN115262435B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with paper folding structure |
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| CN112482254A (en) * | 2020-11-19 | 2021-03-12 | 叶海波 | Self-steering bridge windbreak for sea-crossing bridge |
| CN112982240B (en) * | 2021-02-10 | 2022-04-01 | 山东冠县北方管业有限公司 | Highway strengthens rail guard |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111691321A (en) | 2020-09-22 |
| CN115262435B (en) | 2023-06-16 |
| CN115262435A (en) | 2022-11-01 |
| CN115217044A (en) | 2022-10-21 |
| CN115217044B (en) | 2023-07-25 |
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