CN211692732U - Wake flow galloping power generation device - Google Patents
Wake flow galloping power generation device Download PDFInfo
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- CN211692732U CN211692732U CN202020014141.XU CN202020014141U CN211692732U CN 211692732 U CN211692732 U CN 211692732U CN 202020014141 U CN202020014141 U CN 202020014141U CN 211692732 U CN211692732 U CN 211692732U
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Abstract
The utility model relates to a power generation facility technical field discloses a wake flow galloping power generation facility. The wake flow gallows power generation device comprises a sealing box fixed on a bridge, an elastic top cover is arranged at the top of the sealing box, a vibration piston is further connected to the elastic top cover in a hanging mode, an air inlet and an air outlet are formed in the bottom of the sealing box, a galloping power generation assembly is arranged at the air inlet and/or the air outlet and comprises an interference object and a vibration piece arranged at the downstream of the interference object, and a piezoelectric plate is arranged at the bottom of the vibration piece. The seal box vibration can be taken in the bridge vibration, and the elasticity top cap can drive vibrating piston vibration from top to bottom under elastic effect, and the pressure change leads to gas flow in the seal box, and the air current produces the wake flow and relaxs and vibrate at vibration spare department behind the interference thing, and the piezoelectric patches of vibration spare bottom bears pressure and produces the electric current to turn into the vibration energy of bridge electric energy with rational utilization, the utilization ratio of improvement energy promotes the sustainable development in city.
Description
Technical Field
The utility model relates to a power generation facility technical field especially relates to a wake flow galloping power generation facility.
Background
Energy and environmental problems are the important subjects at present, along with the development of economy, the non-renewable energy sources such as coal, petroleum, natural gas and the like are increasingly reduced, the development and search of environment-friendly renewable energy sources are in the bottleneck stage, and how to reasonably utilize the existing resources has a good promoting effect on the sustainable development of the society.
The bridge is an indispensable part in urban construction, and during the use of the bridge, along with the walking movement of people and vehicles, the vibration of the bridge is always inevitable, and the vibration is the process of energy transmission. Under the general condition, the vibration energy of the bridge is generally dissipated after being buffered by a support structure such as a pier, and if the vibration energy of the bridge is reasonably converted and utilized, the vibration energy of the bridge has important significance for the sustainable development of cities.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the wake flow galloping power generation device is used for reasonably converting and utilizing the vibration energy of a bridge.
In order to realize the above-mentioned purpose, the utility model provides a wake flow gallows power generation facility, including being used for fixing the seal box on the bridge, the top of seal box is provided with the elasticity top cap, still hang on the elasticity top cap and be connected with vibrating piston, the bottom of seal box is provided with air inlet and gas outlet, air inlet and/or gas outlet department are provided with the electricity generation subassembly that gallows, gallows the electricity generation subassembly and include the interference thing and arrange the interference thing is in the vibration piece of air current low reaches department, the piezoelectric patches has been arranged to the bottom of vibration piece.
Preferably, the bottom of the seal box is provided with symmetrically arranged airflow pipelines, and the air inlet and the air outlet are formed by nozzles of the airflow pipelines.
Preferably, the interfering object is a cuboid structure with the bottom fixed on the sealing box.
Preferably, the vibrating member is a steel bar whose bottom is fixed to the sealing box.
Preferably, the vibration piston comprises a weight block connected with the elastic top cover and a bar magnet fixed at the bottom of the weight block, and a power generation coil matched with the bar magnet is further arranged on the wall of the seal box.
Preferably, a flexible connecting rod is further connected between the bottom of the vibration piston and the bottom of the sealing box, and a piezoelectric sheet is further arranged at the bottom of the connecting rod.
Preferably, the connecting rods are arranged at intervals along the circumferential direction of the vibration piston, and the piezoelectric sheets are arranged at the bottom of each connecting rod.
Preferably, the vibration piston includes a body and a mass disposed at a bottom of the body, and a top of the connecting rod is connected to the mass.
Preferably, the air inlet and the air outlet are respectively provided with a one-way valve.
Preferably, the elastic top cover is an annular rubber cover, and the top of the vibration piston is connected with an inner ring of the rubber cover.
The embodiment of the utility model provides a wake flow gallows power generation facility compares with prior art, and its beneficial effect lies in: the seal box vibration can be taken in the bridge vibration, and the elasticity top cap can drive vibrating piston vibration from top to bottom under elastic effect, and the pressure change leads to gas flow in the seal box, and the air current produces the wake flow and relaxs and vibrate at vibration spare department behind the interference thing, and the piezoelectric patches of vibration spare bottom bears pressure and produces the electric current to turn into the vibration energy of bridge electric energy with rational utilization, the utilization ratio of improvement energy promotes the sustainable development in city.
Drawings
Fig. 1 is a schematic perspective view of a wake flow galloping power generation device of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the wake flow galloping power generation device of FIG. 1;
fig. 3 is a schematic structural diagram of a connecting rod and a piezoelectric plate of the wake flow galloping power generation device in fig. 1.
In the figure, 1, a sealed box; 11. an air flow conduit; 2. an elastic top cover; 3. a vibrating piston; 31. a heavy material block; 32. a bar magnet; 33. a mass block; 4. a power generating coil; 5. a connecting rod; 6. a piezoelectric sheet; 7. an interferent; 8. a vibrating member; 9. a one-way valve.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a wake flow gallows power generation facility's preferred embodiment, as shown in fig. 1 to fig. 3, this wake flow gallows power generation facility includes seal box 1, vibrating piston 3 and gallows the electricity generation subassembly that shakes, and seal box 1 is used for fixing on the bridge, can arrange flange in seal box 1's bottom, fixes seal box 1 on the bridge through the bolt.
The vibrating piston 3 comprises a heavy weight block 31, a bar magnet 32 and a mass block 33 which are sequentially arranged from top to bottom, the top of the heavy weight block 31 is connected with the inner ring of the rubber cover, and the heavy weight block 31 and the bar magnet 32 form the body of the vibrating piston 3. The weight block 31 and the mass block 33 are used for increasing the weight of the vibration piston 3, and the vibration amplitude of the vibration piston 3 is larger than that of the bridge under the action of the weight block 31 and the mass block 33. And the wall of the sealing box 1 is also provided with a power generation coil 4, and the power generation coil 4 can be connected with external power storage equipment through a lead. When the rubber cover drives the vibration piston 3 to vibrate up and down in the seal box 1, the bar magnet 32 can reciprocate up and down in the power generation coil 4, so that the magnetic flux in the power generation coil 4 changes, induced current is generated, the induced current can transmit electric energy to external equipment through a wire after being rectified, and the vibration energy of the bridge is converted into electric energy.
In this embodiment, the mass of the weight 31 or the mass 33 connected below the bar magnet 32 can be adjusted to change the overall natural frequency of the flexible top cover 2 and the weight 31 so that the natural frequency is within the vibration frequency range of the bridge. When the natural frequency of the whole body formed by connecting the elastic top cover 2 and the heavy object block 31 is consistent with the vibration frequency of the bridge, the elastic top cover 2 and the heavy object block 31 can generate resonance together with the bridge, so that the utilization rate of vibration energy can be maximized.
A connecting rod 5 is further connected between the mass block 33 of the vibration piston 3 and the bottom of the sealing box 1, and the connecting rod 5 is flexible and can be bent when stressed. In this embodiment, the connecting rod 5 is a flexible steel rod, which has good elasticity and can be restored to a straight rod after the stress is removed. Six connecting rods 5 are arranged at intervals along the circumferential direction of the vibration piston 3, piezoelectric patches 6 are further arranged at the bottoms of the six connecting rods 5 respectively, and the piezoelectric patches 6 can be connected with external electricity storage equipment through leads; in other embodiments, the number of connecting rods 5 may also be three, four or more, etc. When the vibration piston 3 vibrates up and down, the mass block 33 moves down and compresses the connecting rod 5, the connecting rod 5 bends and applies pressure to the piezoelectric sheet 6, the piezoelectric sheet 6 generates current after being subjected to the pressure, and the current can be transmitted to the electricity storage equipment through the conducting wire to convert vibration energy into electric energy.
The bottom of seal box 1 is provided with airflow pipeline 11, and airflow pipeline 11 is total two, and two airflow pipelines 11 use the central line of seal box 1 as the axle and arrange in pairs for the circulation of gas is convenient for between two airflow pipelines 11. One of the pipe orifices of the two airflow pipelines 11 is an air inlet, the other pipe orifice is an air outlet, check valves 9 are respectively arranged at the air inlet and the air outlet, and the check valves 9 can limit the flowing direction of the air and ensure that the air generates galloping phenomenon.
The gas inlet and the gas outlet are both provided with a galloping power generation assembly, the galloping power generation assembly comprises an interfering object 7, a vibrating piece 8 and a piezoelectric sheet 6, the vibrating piece 8 is arranged at the downstream position of the interfering object 7 along the gas flowing direction, and the piezoelectric sheet 6 is arranged at the bottom of the vibrating piece 8. In this embodiment, the interfering object 7 is a rectangular parallelepiped structure, the bottom of the interfering object 7 is fixed on the airflow duct 11, and the vibrating member 8 is a rigid steel bar.
The dimensions of the interfering object 7 and the natural frequency of the vibrating element 8 can be designed according to the vibration frequency range of the bridge in an attempt to have a sufficiently large amplitude to generate a larger current. In order to make the wake galloping more easily occur, the distance between the cuboid interferent 7 and the rigid vibrating piece 8 can be 3 to 4 times of the side length of the interferent 7, the cross section width of the wind-receiving surface of the interferent 7 is less than or equal to the cross section width of the side wind surface, and the distance between the interferent 7 and the vibrating piece 8 and the size of the interferent 7 can be properly adjusted according to the difference of wind speeds of generated wind caused by different bridge vibration conditions. Under the action of the interfering object 7, wake flow galloping phenomenon can occur when the airflow flows to the vibrating piece 8, and the vibration amplitude of the vibrating piece 8 is increased. When the vibrating piece 8 vibrates, the piezoelectric sheet 6 is stressed to generate current, and the current is transmitted to the energy storage battery through a lead connected with the piezoelectric sheet 6.
The utility model discloses a working process does: when a vehicle or a pedestrian passes through the bridge, the bridge vibrates, the vibration piston hung by the rubber cover also vibrates along with the bridge, and the amplitude of the heavy mass is much larger than that of the bridge due to the inertia of the heavy mass and the elasticity of the rubber cover. When the vibrating piston vibrates downwards, air in the lower part of the sealing box is compressed, the gas pressure inside the sealing box is increased, the gas is discharged through a one-way valve at an air outlet which is opened outwards below the sealing box, gas flow is generated at the air outlet, when the flow velocity of the gas reaches critical wind speed, wake flow galloping can be generated on a vibrating piece at the downstream of a cuboid interferent, so that a piezoelectric sheet connected to the root of a steel strip is subjected to pressure to generate current, and the current is transmitted to the electricity storage equipment through a lead connected with the piezoelectric sheet; when the gas in the seal box is exhausted, the air pressure in the seal box is reduced, the external atmospheric pressure is higher than the air pressure in the seal box, the external air flow enters the seal box from the air inlet through the inward-opening one-way valve below the seal box, the air flow from the outside to the inside flows through the interfering object of the cuboid, and wake flow galloping is generated at the vibrating piece at the downstream of the interfering object, so that the piezoelectric sheet connected to the root of the steel strip is subjected to pressure to generate current, and the current is transmitted to the electricity storage equipment through the lead wire connected with the piezoelectric sheet. When the seal box is bigger, the vibration piston is correspondingly bigger, the volume which can be compressed in the vibration piston is bigger, the compressed airflow is more, and the power generation capacity is stronger.
When the vibrating piston vibrates up and down, the bar-shaped magnet is driven to move up and down in the power generation coil, and the magnetic flux passing through the power generation coil changes along with the bar-shaped magnet, so that induced current is generated; the induced current is transmitted to the electricity storage device after being rectified through a lead.
When the vibrating piston vibrates downwards, the mass block at the bottom also vibrates downwards and compresses the flexible connecting rod, the connecting rod bends and applies pressure to the piezoelectric patches, the piezoelectric patches generate current after receiving the pressure, and the current is transmitted to the electricity storage equipment through the leads connected with the piezoelectric patches. Since the bridge vibrations are reciprocating, the pressure to which the connecting rods are subjected is also reciprocating and thus will continue to generate electric current.
To sum up, the embodiment of the utility model provides a wake flow gallows power generation facility, the seal box vibration can be taken in the bridge vibration, the elasticity top cap can drive vibrating piston vibration from top to bottom under elastic effect, the seal box internal pressure changes and leads to gas flow, the air current produces the wake flow after the interferent and gallows in vibration piece department, the piezoelectric patches of vibration piece bottom bears pressure and produces the electric current, thereby turn into the vibration energy of bridge electric energy with rational utilization, the utilization ratio of energy is improved, the sustainable development in city is promoted.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a wake flow gallows power generation facility, a serial communication port, is including being used for fixing the seal box on the bridge, the top of seal box is provided with the elasticity top cap, still hang on the elasticity top cap and be connected with vibrating piston, the bottom of seal box is provided with air inlet and gas outlet, air inlet and/or gas outlet department are provided with the electricity generation subassembly of galloping, the electricity generation subassembly of galloping includes the interferent and arranges the interferent is in the vibration piece of air current low reaches department, the piezoelectric patches has been arranged to the bottom of vibration piece.
2. The wake flow galloping power generation device of claim 1, wherein the bottom of the sealed box is provided with symmetrically arranged air flow pipelines, and the air inlet and the air outlet are formed by nozzles of the air flow pipelines.
3. The wake flow galloping power generation device as claimed in claim 2, wherein the interferent is a rectangular parallelepiped structure with a bottom fixed on the sealing box.
4. The wake flow galloping power generation device of claim 2, wherein the vibrating member is a steel bar with the bottom fixed on the sealing box.
5. The wake flow galloping power generation device as claimed in any one of claims 1-4, wherein the vibrating piston comprises a weight block connected with the elastic top cover and a bar magnet fixed at the bottom of the weight block, and a power generation coil matched with the bar magnet is further arranged on the wall of the sealed box.
6. The wake flow galloping power generation device as claimed in any one of claims 1 to 4, wherein a flexible connecting rod is further connected between the bottom of the vibration piston and the bottom of the sealed box, and a piezoelectric sheet is further arranged at the bottom of the connecting rod.
7. The wake flow galloping power generation device of claim 6, wherein the connecting rods are arranged at intervals along the circumferential direction of the vibration piston, and the piezoelectric sheets are respectively arranged at the bottom of each connecting rod.
8. The wake flow galloping power generation device of claim 6, wherein the vibration piston comprises a body and a mass arranged at a bottom of the body, a top of the connecting rod being connected to the mass.
9. The wake flow galloping power generation device as claimed in any one of claims 1 to 4, wherein the inlet and outlet are provided with one-way valves respectively.
10. The wake flow galloping power generation device as claimed in any one of claims 1 to 4, wherein the elastic top cover is an annular rubber cover, and the top of the vibrating piston is connected with the inner ring of the rubber cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014141.XU CN211692732U (en) | 2020-01-02 | 2020-01-02 | Wake flow galloping power generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014141.XU CN211692732U (en) | 2020-01-02 | 2020-01-02 | Wake flow galloping power generation device |
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| CN211692732U true CN211692732U (en) | 2020-10-16 |
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| CN202020014141.XU Active CN211692732U (en) | 2020-01-02 | 2020-01-02 | Wake flow galloping power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985322A (en) * | 2020-01-02 | 2020-04-10 | 广州大学 | Wake flow galloping power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985322A (en) * | 2020-01-02 | 2020-04-10 | 广州大学 | Wake flow galloping power generation device |
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