Road sound insulation screen for generating electricity by utilizing traffic flow wind energy

Abstract

The invention discloses a road sound insulation screen utilizing traffic flow wind energy for power generation, and relates to the technical field of sound insulation screens, the road sound insulation screen comprises sound insulation screen bodies and wind energy power generation mechanisms, a plurality of wind energy power generation mechanisms are arranged side by side in rows, and the sound insulation screen bodies are arranged at air inlets and / or behind the wind energy power generation mechanisms; the wind power generation mechanism can utilize traffic flow wind to generate power, and the sound insulation screen body can reduce noise of the traffic flow wind. Road wind power generation and the sound insulation screen are combined, noise generated by vehicles running at a high speed can be isolated, meanwhile, wind energy generated by traffic flow can be collected, effective utilization of wind power generation in the traffic field is achieved, the development concept of energy exchange fusion can be practiced, and the problems of carbon emission and air pollution of thermal power generation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of sound insulation screens, and in particular to a road sound insulation screen that utilizes wind energy from vehicle flow to generate electricity. Background Art

[0002] With the rapid development of social economy, the connection between transportation and energy is becoming closer and closer. As an emerging development concept, transportation-energy integration deeply integrates the two major fields of transportation and energy, and comprehensively utilizes transportation infrastructure and energy facilities to achieve efficient use of resources and sustainable development of the environment.

[0003] Elevated noise barriers are noise-reducing facilities installed on both sides of urban elevated roads to isolate or reduce noise, so as to reduce the impact of elevated noise on the daily lives of residents on both sides of the road. The existing traditional noise barriers are mainly composed of sound-absorbing screens - acrylic sound-proof screens and columns, with a single function and only noise reduction effect, and the functional effect is relatively simple. High-speed vehicles strongly interfere with the air and transmit energy to the head and wake of the car in the form of local wind energy. If this wind energy can be collected and utilized, it will give the noise barrier a new function and can also be used as a practice of the concept of transportation and energy integration development. Summary of the invention

[0004] The purpose of the present invention is to provide a road sound insulation screen that utilizes wind energy from traffic to generate electricity, so as to solve the problems existing in the above-mentioned prior art, enable wind energy from traffic to be utilized for power generation, and practice the development concept of transportation and energy integration.

[0005] To achieve the above object, the present invention provides the following solutions: The present invention provides a road soundproof screen that utilizes wind energy from vehicle flow to generate electricity, comprising a soundproof screen body and a wind energy generating mechanism, wherein a plurality of wind energy generating mechanisms are arranged in a row, and the soundproof screen body is arranged at the air inlet and at least one place behind each wind energy generating mechanism, the wind energy generating mechanism can utilize the wind from vehicle flow to generate electricity, and the soundproof screen body can reduce the noise of the wind from vehicle flow; The upper ends of the soundproof screen and the wind power generation mechanism are both provided with sealing covers, and the lower ends are both inserted into a base. The wind power generation mechanism includes a magnetic induction power generation component and a wind cavity. The magnetic induction power generation component is arranged at the bottom of the wind cavity. The air inlet of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component. The air outlet is connected to the air outlet channel in the base.

[0006] Preferably, the sound insulation screen body comprises a perforated metal plate, glass fiber and a metal back plate which are arranged in sequence, and the perforated metal plate is the windward side.

[0007] Preferably, the sound insulation screen and the wind cavity are arranged in an inverted L shape as a whole, and the power generation component of the wind power generation mechanism is located in the vertical section of the inverted L-shaped wind cavity.

[0008] Preferably, the base is a concrete base, the air outlet channel is cast in the concrete base, and the air outlet channel is located below the magnetic induction power generation component.

[0009] Preferably, the wind cavity includes an air inlet, a cyclone cavity and a rear channel, the width of the air inlet is smaller than the width of the cyclone cavity, an arc-shaped partition is arranged between the cyclone cavity and the rear channel, and a plurality of vertically stacked magnetic induction power generation components are clamped in the rear channel.

[0010] Preferably, the magnetic induction power generation component includes a stator, a rotor and an induction coil, the two ends of the rotor are respectively rotatably connected to the stator, the induction coil cover is arranged on the outside of the rotor, the two ends of the induction coil are respectively clamped in the slots on the stator, the rotor is a propeller blade, a permanent magnet is provided on the propeller blade, and the induction coil is electrically connected to the current collection device.

[0011] Preferably, the cross-section of the propeller blade is S-shaped, the permanent magnet is embedded in the edge of each blade, the induction coil includes two spliced ​​metal rings and a plurality of metal rods, and the plurality of metal rods are evenly distributed between the two metal rings at equal intervals along the circumferential direction.

[0012] Preferably, the stator and the rotor are also provided with a friction power generation component, which includes a copper electrode and a friction rotor. Each stator is clamped with a plurality of the copper electrodes at equal intervals along the circumferential direction, and the top of the propeller blade is fixedly connected with the friction rotor. The friction rotor and the copper electrode can achieve surface contact and sliding friction.

[0013] Preferably, the stator is made of an acrylic plate, the propeller blades are made of an insulating material, a friction negative electrode film is pasted on the friction surface of the friction rotor, the friction negative electrode film is made of polytetrafluoroethylene material, and a printed circuit board with a grid structure is pasted on the stator.

[0014] Preferably, the copper electrode is fan-shaped and has a thickness of 20 μm, the minimum spacing between two adjacent copper electrodes is not less than 4 mm, 12 copper electrodes are provided, and the centers of the copper electrodes are electrically connected to the current collection device through a collector ring.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: The present invention combines road wind power generation with sound insulation screens, which can not only isolate the noise generated by high-speed vehicles, but also collect wind energy generated by traffic, thereby realizing the effective use of wind power generation in the transportation field, practicing the development concept of transportation and energy integration, and reducing carbon emissions and air pollution problems caused by thermal power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The structure of the road noise barrier using wind energy from traffic to generate electricity in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the road noise barrier using wind energy from traffic to generate electricity in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 3 The structure of the road noise barrier using wind energy from traffic to generate electricity in the embodiment of the present invention is shown in FIG. Figure 3 ; Figure 4 A schematic diagram of the cross-sectional structure of a road noise barrier for generating electricity using wind energy from vehicle flow according to an embodiment of the present invention; Figure 5 The structure of the wind power generation mechanism in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 6 The structure of the wind power generation mechanism in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 7 For the embodiment of the present invention Figure 6 Schematic diagram of the local structure at I in the middle; Figure 8 The structure of the wind power generation mechanism in the embodiment of the present invention is shown in FIG. Figure 3 ; Fig. 9 The structure of the wind power generation mechanism in the embodiment of the present invention is shown in FIG. Figure 4 ; Fig.10 It is a schematic diagram of a structure in which multiple wind power generation mechanisms are stacked in an embodiment of the present invention; Fig.11 A schematic diagram of the structure of a rotor in an embodiment of the present invention; Fig.12 It is a structural schematic diagram of a stator in an embodiment of the present invention; In the figure: 1-soundproof screen, 2-base; 3-wind power generation mechanism, 31-air inlet, 32-cyclone chamber, 33-rear channel, 34-arc partition; 4-magnetic induction power generation component, 41-stator, 411-acrylic disc, 412-copper electrode, 413-collector ring, 42-rotor, 421-propeller blade, 422-permanent magnet, 423-rotating shaft, 424-friction rotor, 43-induction coil; 5-air outlet channel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The purpose of the present invention is to provide a road sound insulation screen that utilizes wind energy from traffic to generate electricity, so as to solve the problems existing in the prior art, enable wind energy from traffic to be utilized for power generation, and practice the development concept of transportation and energy integration.

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Embodiment 1 like Figures 1 to 12 As shown, in this embodiment, a road noise barrier for generating electricity using wind energy from vehicle flow is provided, comprising a noise barrier body 1 and a wind energy generating mechanism 3. A plurality of wind energy generating mechanisms 3 are arranged in parallel in a row, and a noise barrier body 1 is arranged at the air inlet 31 and at least one place behind each wind energy generating mechanism 3. The wind energy generating mechanism 3 can generate electricity using wind from vehicle flow, and the noise barrier body 1 can reduce the noise of wind from vehicle flow. The wind energy generating mechanism 3 and the noise barrier body 1 in the front row first generate electricity and reduce noise from wind energy, and the noise barrier body 1 in the rear row further reduces the noise of the remaining wind energy.

[0024] In this embodiment, the upper ends of the soundproof screen 1 and the wind power generation mechanism 3 are both provided with sealing covers, and the lower ends are both plugged into a base 2. The wind power generation mechanism 3 includes a magnetic induction power generation component 4 and a wind cavity. The magnetic induction power generation component 4 is arranged at the bottom of the wind cavity. The air inlet 31 of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component 4. The air outlet is connected to the air outlet channel 5 in the base 2. This embodiment is preferably used on an elevated bridge, and the air outlet channel 5 is located below the base 2 and is connected to the outside atmosphere under the elevated bridge; the wind cavity is preferably composed of a ceramic plate material to further enhance the sound insulation and noise reduction effect.

[0025] As an optional solution, the soundproof screen 1 in this embodiment includes a perforated metal plate, glass fiber and a metal back plate arranged in sequence. The perforated metal plate is the windward side. The perforated metal plate and glass fiber can reduce the noise of vehicle wind.

[0026] As an optional solution, the soundproof screen 1 and the wind cavity are arranged in an inverted L shape as a whole in this embodiment, and the power generation assembly of the wind power generation mechanism 3 is located in the vertical section of the inverted L-shaped wind cavity. In this embodiment, the inverted L-shaped structure is arranged, and the upper inclined section of the inverted L-shaped structure can block part of the rainwater and allow the rainwater to flow downstream to avoid rainwater backflow.

[0027] As an optional solution, in this embodiment, the base 2 is a concrete base, in which an air outlet channel 5 is cast, and the air outlet channel 5 is located below the magnetic induction power generation component 4.

[0028] As an optional solution, the wind cavity in this embodiment includes an air inlet 31, a cyclone cavity 32 and a rear channel 33. The width of the air inlet 31 is smaller than the width of the cyclone cavity 32. An arc-shaped partition 34 is arranged between the cyclone cavity 32 and the rear channel 33. A plurality of vertically stacked magnetic induction power generation components 4 are clamped in the rear channel 33. The height of each group of magnetic induction power generation components 4 is 10cm-50cm, preferably 25cm. They are arranged in vertical sections, and can collect wind energy from different heights and different wind speeds. Different speeds of electricity can be generated according to the wind speed at different heights, which can maximize the collection of wind energy and make wind energy more efficient. When a car passes by, the airflow generated by the traffic enters from the air inlet 31, and a cyclone is formed in the cyclone cavity 32. After the cyclone is formed, a stable airflow is generated. When the airflow passes through the rear channel 33, it will accelerate the flow and rotate the magnetic induction power generation component 4 to generate electricity. In this embodiment, the arc-shaped partition plate 34 arranged between the cyclone chamber 32 and the rear channel 33 has an airflow guiding function, which is convenient for guiding the airflow from the cyclone chamber 32 to the rear channel 33 for wind power generation. According to the principle of the air multiplier, the airflow generated by the vehicle is accelerated after passing through the cyclone chamber 32 and the rear channel 33, and then pushes the rotor 42 of the magnetic induction power generation component 4 at high speed, thereby generating electricity. This design eliminates the need to design a fan blade generator on the road, making both sides of the road more simple and beautiful.

[0029] As an optional solution, the magnetic induction power generation component 4 in this embodiment includes a stator 41, a rotor 42 and an induction coil 43. The two ends of the rotor 42 are respectively connected to a stator 41 through a rotating shaft 423. The induction coil 43 is covered on the outside of the rotor 42. The two ends of the induction coil 43 are respectively clamped in the clamping groove on the stator 41. The rotor 42 is a propeller blade 421. The propeller blade 421 is provided with a permanent magnet 422. The induction coil 43 is electrically connected to the current collection device. Among them, the propeller blade 421 is made of non-crystalline copolyester (PETG) material, which not only ensures toughness, but also has the characteristics of being light, thin and resistant to high temperature. The propeller blade 421 rotates with the permanent magnet 422, and the induction coil 43 cuts the magnetic flux generated by the permanent magnet 422, thereby generating current in the induction coil 43.

[0030] As an optional solution, in this embodiment, the cross section of the propeller blade 421 is S-shaped, the permanent magnet 422 is embedded in the edge of each blade, and the induction coil 43 includes two metal rings spliced ​​together and a plurality of metal rods, and a plurality of metal rods are evenly distributed between the two metal rings at equal intervals along the circumferential direction to form two semicircular metal cages, and the metal rods are used to cut the magnetic flux lines generated by the induction coil 43. Among them, the induction coil 43 includes two semi-cylinders that can be spliced ​​into a cylinder, each semi-cylinder includes two upper and lower semi-circular rods and a plurality of metal rods, and a plurality of metal rods are arranged between the two semi-circular rods.

[0031] In this embodiment, the traditional sound insulation screen is upgraded. The wind power generation mechanism 3 is added to the sound insulation screen body 1, which not only has the noise reduction effect of absorbing and isolating sound and blocking noise propagation, but also can convert wind energy into electrical energy to generate wind energy, thereby maximizing resource utilization and having extremely high economic and social benefits.

[0032] Embodiment 2 like Figures 10 to 12 As shown, different from the first embodiment, this embodiment is an optional solution, wherein the stator 41 and the rotor are further provided with a friction power generation component, the friction power generation component includes a copper electrode 412 and a friction rotor 424, each stator 41 is clamped with a plurality of copper electrodes 412 at equal intervals along the circumferential direction, and the top of the propeller blade 421 is fixedly connected with a friction rotor 424, and the friction rotor 424 and the copper electrode 412 can achieve surface contact and sliding friction. Among them, the friction negative electrode on the friction rotor 424 and the copper electrode 412 can generate electricity by friction.

[0033] As an optional solution, the material of the stator 41 in this embodiment is an acrylic plate, and the stator 41 is preferably an acrylic disc 411, and an annular clamping groove is set on the edge for clamping and positioning the induction coil 43. The material of the propeller blade 421 is an insulating material. A friction negative electrode film is pasted on the friction surface of the friction rotor 424. The friction negative electrode film is a polytetrafluoroethylene material (PTFE). The insulating material can protect other structures from charge interference. A printed circuit board (PCB grid plate) with a grid structure is pasted on the stator 41. Copper foil is pasted on the surface of the printed circuit board. The copper electrode 412 is welded on the component pin of the PCB grid plate. The PCB grid plate can achieve precise control, real-time monitoring, fault protection, efficiency optimization and design simplification, thereby improving the performance and reliability of the generator. The amount of transferred charge generated when the polytetrafluoroethylene (PTFE film) rubs against the copper electrode 412 is large, so it is preferably used as a material for friction power generation. The non-friction surface of the friction rotor 424 can also be pasted with a polyimide (PI) insulating film for insulation.

[0034] As an optional solution, in this embodiment, the copper electrode 412 is fan-shaped and has a thickness of 20 μm. The minimum spacing between two adjacent copper electrodes 412 is not less than 4 mm. There are 12 copper electrodes 412. The centers of the copper electrodes 412 are electrically connected to the current collection device through a collector ring 413. The current collected by the current collection device is connected to the power grid after conversion, and can also be used to power infrastructure on the road, such as street lights.

[0035] The power generation principle of the magnetic induction power generation component 4 and the friction power generation component in this embodiment is as follows: when the airflow passes through the rear channel 33, the rotor 42 rotates, and the rotor 424 is attached to the friction negative electrode. When the rotor rotates, it rubs against the friction positive electrode (copper electrode 412) of the stator 41, and the surfaces of the two poles move relative to each other, which leads to charge separation. The electrons on the surface of the material of the friction positive electrode are transferred to the surface of the material of the friction negative electrode, so that the surface of the friction negative electrode is negatively charged, and the surface of the friction positive electrode is positively charged, generating a potential difference and charge accumulation. When the two surfaces of the friction positive electrode (copper electrode 412) and the friction negative electrode film are relatively displaced or disconnected, the charge will flow through the external circuit, thereby generating current and electrical energy output. At the same time, when the rotor 42 rotates, the permanent magnet 422 on the rotor 42 will generate a constantly changing magnetic field, and the induction coil 43 will induce an electromotive force, which will cause the charge to move in the conductor coil, thereby generating current.

[0036] This embodiment combines road wind power generation with sound insulation screens, which can not only isolate the noise generated by high-speed vehicles, but also collect wind energy generated by traffic, thereby realizing the effective use of wind power generation in the transportation field, practicing the development concept of transportation energy integration, and reducing carbon emissions and air pollution problems from thermal power generation; it is a highly efficient composite collection and power generation method of mechanical energy that combines frictional electric nano-generation and electromagnetic induction power generation, and comprehensively considers the output characteristics of high voltage and high impedance of frictional electric nano-generators and low voltage and low impedance of electromagnetic induction generators, and has the characteristics of high efficiency and low power consumption. By connecting road wind turbines to road infrastructure such as street lights, an independent self-powered monitoring system is formed, thereby avoiding the costs of cable laying and maintenance.

[0037] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A road noise barrier that uses wind energy from traffic to generate electricity, characterized by: It comprises a soundproof screen and a wind power generation mechanism, wherein a plurality of the wind power generation mechanisms are arranged in a row, and the air inlet and at least one rear portion of each wind power generation mechanism are provided with the soundproof screen, the wind power generation mechanism can generate electricity by utilizing the wind from vehicle flow, and the soundproof screen can reduce the noise of the wind from vehicle flow; The upper ends of the soundproof screen and the wind power generation mechanism are both provided with sealing covers, and the lower ends are both inserted into a base. The wind power generation mechanism includes a magnetic induction power generation component and a wind cavity. The magnetic induction power generation component is arranged at the bottom of the wind cavity. The air inlet of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component. The air outlet is connected to the air outlet channel in the base.

2. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 1 is characterized by: The sound insulation screen body comprises a perforated metal plate, glass fiber and a metal back plate which are arranged in sequence, and the perforated metal plate is the windward side.

3. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 1 is characterized by: The soundproof screen and the wind cavity are arranged in an inverted L shape as a whole, and the power generation component of the wind power generation mechanism is located in the vertical section of the inverted L-shaped wind cavity.

4. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 1 is characterized by: The base is a concrete base, in which the air outlet channel is cast, and the air outlet channel is located below the magnetic induction power generation component.

5. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 1 is characterized by: The wind cavity includes an air inlet, a cyclone cavity and a rear channel. The width of the air inlet is smaller than the width of the cyclone cavity. An arc-shaped partition is arranged between the cyclone cavity and the rear channel. A plurality of vertically stacked magnetic induction power generation components are clamped in the rear channel.

6. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 1 is characterized by: The magnetic induction power generation component includes a stator, a rotor and an induction coil. The two ends of the rotor are respectively rotatably connected to the stator. The induction coil cover is arranged on the outside of the rotor. The two ends of the induction coil are respectively clamped in the slots on the stator. The rotor is a propeller blade. A permanent magnet is arranged on the propeller blade. The induction coil is electrically connected to a current collection device.

7. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 6 is characterized by: The cross section of the propeller blade is S-shaped, the permanent magnet is embedded in the edge of each blade, the induction coil includes two spliced ​​metal rings and a plurality of metal rods, and a plurality of metal rods are evenly distributed between the two metal rings along the circumferential direction at equal intervals.

8. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 6 is characterized by: The stator and the rotor are also provided with friction power generation components, which include copper electrodes and friction rotors. Each stator is clamped with a plurality of the copper electrodes at equal intervals along the circumferential direction. The top of the propeller blade is fixedly connected with the friction rotor, and the friction rotor and the copper electrode can achieve surface contact and sliding friction.

9. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 8 is characterized by: The material of the stator is an acrylic plate, the material of the propeller blade is an insulating material, a friction negative electrode film is pasted on the friction surface of the friction rotor, the friction negative electrode film is a polytetrafluoroethylene material, and a printed circuit board with a grid structure is pasted on the stator.

10. The road noise barrier for generating electricity using wind energy from vehicle flow according to claim 8, characterized in that: The copper electrode is fan-shaped and 20 μm thick. The minimum spacing between two adjacent copper electrodes is not less than 4 mm. Twelve copper electrodes are provided, and the centers of the copper electrodes are electrically connected to the current collection device through a collector ring.

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