CN115217044B - Wind barrier with friction nano power generation device - Google Patents
Wind barrier with friction nano power generation device Download PDFInfo
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- CN115217044B CN115217044B CN202210424924.9A CN202210424924A CN115217044B CN 115217044 B CN115217044 B CN 115217044B CN 202210424924 A CN202210424924 A CN 202210424924A CN 115217044 B CN115217044 B CN 115217044B
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- electrode
- windbreak
- power generation
- friction
- paper folding
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Classifications
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present disclosure describes a wind barrier with a friction nano power generation device, comprising a wind barrier body, and a friction nano power generation device disposed on the wind barrier body, the friction nano power generation device comprising a first electrode and a second electrode disposed opposite to each other, a paper folding structure disposed between the first electrode and the second electrode, a friction layer covering the paper folding structure, and a conversion circuit connected to the first electrode and the second electrode, the friction nano power generation device being configured such that the first electrode and the second electrode are in a separated state when no crosswind is acting; under the action of the crosswind, the paper folding structure is compressed, the paper folding structure is contacted and rubbed with the friction layer to generate potential difference between the first electrode and the second electrode, and the alternating current is output by the conversion circuit through the periodic contact and separation of the first electrode and the second electrode. Thus, the wind-proof barrier body can be converted into electric energy by the frictional nano-power generation device.
Description
The application is a divisional application of patent application of which the application date is 29 of 05 month in 2020, the application number is CN202010475352.8, and the invention name is windbreak prevention of a friction nano-generator using a paper folding structure.
Technical Field
The invention relates to the technical field of bridge engineering, in particular to an anti-wind barrier with a friction nano power generation device.
Background
The bridge is an important component part in a modern transportation system, and the bridge roads in areas with strong wind frequency, such as roads in Xinjiang, inner Mongolia, coastal lands and the like, have much higher wind speeds than other roads due to geographical positions and the like, so that the safety problem of the crosswind running of vehicles running on the roads is obvious. In order to reduce the influence of crosswind on the driving safety of the bridge deck, avoid the occurrence of side slip or side tilting accidents of vehicles, improve the driving environment of the bridge deck and increase the effective passing time of the bridge, wind barriers are usually required to be arranged on the two sides or the central separation belt of the bridge. By adding the wind barriers, the wind speed of the bridge deck can be reduced, the travelling comfort of the bridge deck can be increased, and the wind barriers are a main means for improving the using function of the bridge.
The existing windbreak mostly adopts a strip type windbreak structure of steel upright posts and barrier strips, wherein the steel upright posts play a supporting role, the windbreak strips play a wind-blocking role, and the wind-blocking effect of the windbreak can be controlled by adjusting the width, the spacing and the number of the windbreak strips. As shown in fig. 1, the wind barrier main body 7 mainly comprises a wind barrier upright post 1, a wind barrier strip 2, a wind barrier guy cable 3, a wind barrier clamping plate and a damping rubber sleeve 4, wherein the wind barrier upright post 1 is a columnar member for fixing the wind barrier strip 2; the windbreak strips 2 are fixed between the windbreak upright posts 1 and are horizontal strip-shaped stress members for reducing the side wind load; the windbreak inhaul cable 3 is used for guaranteeing the overall stability of the bridge windbreak, and is made of stainless steel wires and the like, and prestress needs to be applied; the windbreak clamping plate is used for clamping the windbreak strips 2 and is fixed on the windbreak upright post 1 by adopting a high-strength bolt; the damping rubber sleeve 4 is used for reducing the vibration of the windbreak strips 2.
In practical application, when strong wind weather appears, the windbreak strip will receive great crosswind pressure for whole windbreak main part takes place the vibration easily, takes place the damage phenomenon easily, can drive the whole vibration of bridge even. In addition, the existing wind barriers cannot generate a warning effect on a bridge floor running vehicle, and when the wind speed is high, the running vehicle cannot be effectively reminded of paying attention to safe running.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the wind barrier of the friction nano generator with the paper folding structure, based on the existing wind barrier main body structure, the friction nano generator technology with the paper folding structure is combined to buffer the side wind pressure born by the wind barrier, and the electric energy is used for warning the lamp panel through wind power conversion so as to effectively warn the running vehicle.
The aim of the invention can be achieved by the following technical scheme: the utility model provides an use wind break of paper folding structure friction nanometer generator, includes the wind break main part, friction nanometer power generation facility and wind speed sensor are installed in the outside of wind break main part, friction nanometer power generation facility is used for converting wind energy into the electric energy, friction nanometer power generation facility inside is equipped with the paper folding structure that is used for buffering side wind pressure and increase friction area, still install warning device in the wind break main part, wind speed sensor is connected with the treater, friction nanometer power generation facility's output is connected to wind speed sensor respectively, is connected to warning device through controllable switch to provide electric energy for wind speed sensor and warning device respectively, the treater is connected with controllable switch, with the switch of control controllable switch.
Further, the friction nano power generation device is specifically a vertical contact separation type friction nano power generation device, the friction nano power generation device further comprises a friction layer, a TENG (Triboelectric nano generators) circuit and electrodes symmetrically arranged with each other, the paper folding structure is located between the electrodes, the friction layer covers the outer surface of the paper folding structure, the input end of the TENG circuit is connected with the electrodes, and the output end of the TENG circuit is respectively connected to a wind speed sensor and is connected to a warning device through a controllable switch.
Further, 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 a controllable switch.
Further, the negative electrode of the friction layer is made of a perfluoro-alkane material, and the positive electrode of the friction layer is made of an elastic latex material.
Further, the electrode is made of metal aluminum.
Further, the paper folding structure takes the form of honeycomb-like cell walls to create cushioning and compression resistance.
Further, the friction nano power generation device is installed on the outer side of the windbreak main body in a simply supported mode.
Further, the warning device is arranged on the inner side of the windbreak strip.
Further, the warning device comprises a plurality of light emitting diodes.
Further, the light emitting diode emits yellow light which flashes at a preset frequency after being electrified.
The specific working principle of the invention is as follows: when no side wind acts, the electrode of the friction nano power generation device is in a separation state, and the friction nano power generation device does not output electric energy at the moment;
when the side wind acts, the side wind pressure acts on the friction nano device positioned on the outer side of the windbreak bar, the paper folding structure is compressed, the paper folding structure is in contact friction with the friction layer, through friction electrification and electrostatic induction, potential difference is generated between the two electrodes, a periodic contact separation process between the electrodes is formed along with irregular change of the side wind pressure, a TENG circuit converts wind energy into electric energy, alternating current is output, the alternating current is converted into direct current through a full-wave rectifying circuit, and then stable direct current is output through a filter capacitor, the direct current is output to a wind speed sensor, the wind speed sensor detects the wind speed of the current side wind, if the processor judges whether the wind speed value of the current side wind exceeds a preset wind speed threshold value, if the processor judges that the wind speed value of the current side wind exceeds the preset wind speed threshold value, a controllable switch is controlled to be conducted, and a warning system sends flashing yellow light after the friction nano device is electrified, so that a driving vehicle on a bridge road surface is reminded of the current wind speed is overlarge, and safe driving is needed to be paid attention; if the vehicle is not on, the controllable switch is controlled to be turned off, the warning system is powered off, and the driving vehicle on the bridge pavement is not reminded.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the friction nano power generation device with the paper folding structure and the warning device are combined, the friction nano power generation device is utilized to convert the side wind received by the windbreak strips into electric energy, and the electric energy is output to the warning device, so that the side wind pressure received by the bridge windbreak can be reduced through buffering of the paper folding structure, and meanwhile, a warning effect can be generated on a bridge road surface running vehicle.
2. According to the invention, 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 frictional 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 received by the windbreak can be effectively converted into electric energy.
3. According to the invention, the current side wind speed is acquired in real time through the wind speed sensor, and the dangerous wind speed is judged by the processor, so that whether the warning device is electrified or not is controlled, and the warning device can timely and reliably remind the bridge road running vehicle of paying attention to safe running in sequence.
Drawings
The present disclosure will now be explained in further detail by way of example only with reference to the accompanying drawings, in which:
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 power generation device according to the present invention.
Fig. 4 is a schematic diagram of connection of TENG circuit in the present invention.
Description of the reference numerals
1 … windbreak upright post, 2 … windbreak strip, 3 … windbreak cable, 4 … windbreak clamping plate and damping rubber sleeve, 5 … bridge deck, 6 … bridge guardrail, 7 … windbreak main body, 8 … friction nano power generation device, 9 … connecting lead, 10 … wind speed sensor, 101 … processor, 11 … controllable switch, 12 … warning device, 13 … paper folding structure, 14 … electrode, 15 … friction layer, 16 … TENG circuit.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
The wind barrier of the friction nano generator with the paper folding structure comprises a wind barrier main body 7 (the specific structure is shown in fig. 1, the structure is in the prior art), the inner side of the wind barrier main body 7 faces to a bridge pavement, the outer side of the wind barrier main body 7 faces to two outer areas of the bridge, as shown in fig. 2, a friction nano power generation device 8 is arranged on the outer side of the wind barrier main body 7, a warning device 12 is arranged on the inner side of the wind barrier main body 7, a wind speed sensor 10, a processor 101 and a controllable switch 11 are also arranged on the wind barrier main body 7, wherein the friction nano power generation device 8 is respectively connected to the wind speed sensor 10 and the controllable switch 11 through wires 9, the wind 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, that is, the friction nano power generation device 8 provides electric energy for the wind 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 obtains electricity from the friction nano 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, 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 windbreak strip starts working when getting electricity, and in the embodiment, the warning device 12 consists of light emitting diodes and can emit yellow light flashing at a certain frequency.
Specifically, as shown in fig. 3, the structure of the friction nano power generation device 8 is shown in fig. 3, the whole friction nano power generation device 8 adopts a vertical contact separation type working mode, and utilizes the coupling effect between friction electrification and electrostatic induction to generate electric energy, and the friction nano power generation device mainly comprises a paper folding structure 13, electrodes 14, a friction layer 15 and a TENG circuit 16 which are symmetrically arranged, wherein the paper folding structure 13 adopts a honeycomb cell wall-like form, and can provide good buffering capacity and compression resistance, so that the side wind pressure suffered by a windbreak can be buffered, the friction area is increased, the friction layer 15 adopts Perfluoro (PFA) as a negative electrode material, elastic latex as a positive electrode material, metal aluminum (Al) is used as an electrode, the friction layer 15 is covered on the paper folding structure 13, and the contact surface area of the friction layer 15 can be effectively increased, so that the capacitance change of contact electrification and electrostatic induction can be remarkably amplified, and a region capable of generating induction charges can be formed. In the state without wind force, the electrode 14 of the friction nano power generation device is in a separated state; when wind force acts, under the action of side 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, potential difference is generated between the upper electrode 14 and the lower electrode 14 according to the principle of friction electricity generation and electrostatic induction, the periodic contact separation process of the electrodes 14 is formed through irregular side wind pressure, the conversion of wind energy into electric energy is realized through the TENG circuit 16, the wind speed sensor 10 and the warning device 12 are powered through the connecting wire 9, and the output end of the TENG circuit 16 firstly passes through a full-wave rectifying circuit to convert alternating current into direct current and then passes through capacitive filtering to obtain stable and gentle output current, as shown in fig. 4.
According to the invention, a paper folding technology and a friction nano power generation technology are combined and applied to the wind barrier, and the friction nano power generation based on Maxwell displacement current as a theoretical basis has attracted wide attention since the first time the nano power generation technology is in the past 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 solution of generating a microelectronic low-power consumption system and stretchable energy, has high open-circuit voltage and high instantaneous energy conversion efficiency which are far higher than those of 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 deduction and demonstration, paper folding configurations with different rigidities, specific surface areas and retractilities can be designed and manufactured, so that the paper folding technology has a plurality of applications in space compression utilization and information storage. The friction nano generator and paper folding technology are comprehensively utilized, so that the current traditional friction nano power generation energy conversion efficiency and output power can be enhanced, better energy recovery and power supply are realized, and the friction nano generator has a great application prospect in the aspects of power generation and self-power supply. The friction nano generator using the paper folding technology has simple structure and light weight, so that the streamline aerodynamic shape of the main beam is not influenced when the friction nano generator is arranged on the outer side of the bridge wind barrier.
Therefore, the wind barrier for the bridge provided by the invention is applied to practice, the stress of the wind barrier of the bridge can be reduced by utilizing the paper folding structure for buffering, meanwhile, a great amount of wasted wind energy on the wind barrier can be converted into electric energy by combining with friction nano power generation, the generated electric energy can be directly used for a warning lamp panel to prompt safety of passing vehicles, and the wind barrier has the advantages of buffering the side wind pressure borne by the wind barrier strip and converting the wind energy borne by the wind barrier into electric energy. The invention has the function of early warning whether the wind speed on the bridge reaches a critical dangerous value, controls the light emitting diodes arranged on the inner side of the windbreak strip to emit light for warning when the measured wind speed is at the dangerous value, early warns the vehicles running on the bridge, reduces the occurrence of accidents caused by side wind, and has important function in future intelligent and safe bridge engineering.
Claims (10)
1. A windbreak with friction nano power generation device is characterized in that,
comprises a windbreak main body and a friction nano power generation device arranged on the outer side of the windbreak main body,
the friction nano power generation device comprises a first electrode, a second electrode, a paper folding structure, a friction layer and a TENG circuit, wherein the first electrode and the second electrode are oppositely arranged, the paper folding structure is arranged between the first electrode and the second electrode, the friction layer is covered on the paper folding structure, the input end of the TENG circuit is connected with the first electrode and the second electrode,
the friction nano power generation device is configured such that the first electrode and the second electrode are in a separated state when no crosswind acts; under the action of the crosswind, the paper folding structure is compressed, the paper folding structure is contacted and rubbed with the friction layer so that a potential difference is generated between the first electrode and the second electrode, the first electrode is periodically contacted and separated from the second electrode, and the TENG circuit outputs alternating current.
2. The windbreak according to claim 1, further comprising a wind speed sensor connected to the output of the TENG circuit, the wind speed sensor being adapted to detect the current wind speed of the crosswind.
3. The windbreak according to claim 1 or 2, further comprising a full wave rectifier circuit connected to an output of the TENG circuit, the alternating current being converted to direct current by the full wave rectifier circuit.
4. A windbreak according to claim 3, further comprising a filter capacitor connected to the full wave rectifier circuit, said ac power being converted to smooth dc power by said full wave rectifier circuit and said filter capacitor.
5. A windbreak according to claim 2, further comprising warning means for alerting.
6. The windbreak according to claim 1, characterized in that the friction nano-generating device is mounted outside the windbreak body in a simple form.
7. The windbreak according to claim 5, further comprising a processor and a controllable switch, wherein the processor determines whether the current wind speed value detected by the wind speed sensor exceeds a preset wind speed value, and if so, controls the controllable switch to be turned on to cause the warning device to emit light.
8. The windbreak according to claim 1, wherein the paper folding structure is a honeycomb-like cell wall structure.
9. The windbreak according to claim 1, wherein the friction layer has a positive electrode and a negative electrode, the positive electrode material being an elastic latex and the negative electrode material being a perfluoro-alkane.
10. The windbreak according to claim 1, wherein the windbreak body is provided on both sides of the bridge or in the median of the bridge.
Priority Applications (1)
| 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 |
Applications Claiming Priority (2)
| 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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010475352.8A Division CN111691321B (en) | 2020-05-29 | 2020-05-29 | Use paper folding structure friction nanometer generator prevent wind barrier |
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| Publication Number | Publication Date |
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| CN115217044A CN115217044A (en) | 2022-10-21 |
| CN115217044B true CN115217044B (en) | 2023-07-25 |
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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 |
| CN202210424924.9A Active CN115217044B (en) | 2020-05-29 | 2020-05-29 | Wind barrier with friction nano power generation device |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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| CN104426458B (en) * | 2013-09-05 | 2017-02-01 | 纳米新能源（唐山）有限责任公司 | Portable type mobile power source based on combination of wind friction power generation and solar power generation |
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| CN204608623U (en) * | 2015-03-25 | 2015-09-02 | 温州职业技术学院 | A kind of road air partition |
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2020
- 2020-05-29 CN CN202010475352.8A patent/CN111691321B/en active Active
- 2020-05-29 CN CN202210424792.XA patent/CN115262435B/en active Active
- 2020-05-29 CN CN202210424924.9A patent/CN115217044B/en active Active
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| CN205810109U (en) * | 2016-06-22 | 2016-12-14 | 西南交通大学 | A kind of self-driven wireless vehicle flow detector based on electromagnet-friction hybridized nanometer electromotor |
| CN110491093A (en) * | 2019-08-23 | 2019-11-22 | 大连民族大学 | Mountain landslide supervision system based on nano friction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111691321B (en) | 2022-05-17 |
| CN115217044A (en) | 2022-10-21 |
| CN111691321A (en) | 2020-09-22 |
| CN115262435B (en) | 2023-06-16 |
| CN115262435A (en) | 2022-11-01 |
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