Wind power energy storage type gradual change type wind barrier

Abstract

The utility model belongs to the technical field of traffic protection facilities, and discloses a wind power energy storage type gradient wind barrier which comprises a plurality of groups of wind shield units arranged on two sides of a road, and each wind shield unit comprises a plurality of wind shields which are sequentially connected in series; a plurality of ventilation holes are formed in the wind shield of each wind shield unit, and the areas, occupied by the ventilation holes in the different wind shields in the same wind shield unit, of the wind shield are different. The different ventilation holes are formed in the wind shields to form variable ventilation hole area proportions, after crosswind passes through the wind shield units, the flow speed is reduced to different degrees, the wind speed gradient change is flatter, air flow which is gradually increased is allowed to pass while wind is prevented, the wind prevention effect is improved, and therefore a safer and more stable traffic environment can be provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of traffic protection facilities, and in particular relates to a wind energy storage type gradual wind barrier. Background Art

[0002] During the operation of high-speed trains, side winds often have a very adverse effect on their stability and may even lead to serious derailment incidents. In order to alleviate these adverse effects, wind barrier technology is often used in existing technologies for protection.

[0003] At present, the design of railway wind barriers mainly focuses on reducing wind speed, but in the case of high wind speed and drastic changes in wind direction, the existing design cannot provide sufficient stability; at the same time, the design of wind barriers should take into account the lightweight of materials and the convenience of construction to reduce project costs, and the design needs to meet safety standards and environmental protection requirements to ensure that it will not have a negative impact on the surrounding environment and driving safety during use.

[0004] Therefore, there is an urgent need for a wind barrier with good windproof effect to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a wind barrier with good windproof effect. The specific technical scheme is as follows:

[0006] A wind energy storage type gradual wind barrier, comprising a plurality of windshield units arranged on both sides of a road, wherein the windshield units comprise a plurality of windshields arranged in series in sequence;

[0007] A plurality of ventilation holes are arranged on the windshield of each group of windshield units, and the ventilation holes on different windshields in the same group of windshield units occupy different areas of the windshield.

[0008] Preferably, the area ratio of the ventilation holes is in the range of 20%-80%, and the ratio decreases gradually in the direction approaching the tunnel on the road.

[0009] Preferably, each group of windshield units includes windshields with four ventilation hole area ratios of 20%, 40%, 60% and 80%.

[0010] Preferably, the height of the wind shield decreases as the proportion of the ventilation hole area of ​​the wind shield increases.

[0011] Preferably, the windshields in each group of windshield units are detachably connected via fixing bolts.

[0012] Preferably, the windshields are all bent toward the road side with a certain arc.

[0013] Preferably, it also includes a wind generator and an energy storage battery, wherein the wind generator is arranged in the ventilation hole and connected to the energy storage battery, and the energy storage battery is connected to the electrical equipment.

[0014] Preferably, each wind shield is also provided with a line conduit, and the line conduit is used for allowing the connection line between the wind turbine and the energy storage battery to pass through the inside of the wind shield.

[0015] Preferably, the windshield unit has a thickness of 0.3 m, a height of 3.5 m-4 m, and a length of 150 m.

[0016] Preferably, the ventilation hole has a diameter of 10 to 30 cm.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model provides a wind energy storage type gradual wind barrier, comprising a plurality of windshield units arranged on both sides of a road, wherein the windshield units include a plurality of windshields arranged in series in sequence; a plurality of ventilation holes are arranged on the windshield of each group of windshield units, and the ventilation holes on different windshields in the same group of windshield units occupy different areas of the windshield. By arranging different ventilation holes on the windshield to form a varying proportion of the ventilation hole area, after the crosswind passes through the windshield unit, the flow velocity is reduced to varying degrees, and the wind speed gradient changes more smoothly, allowing a gradually increasing air flow to pass through while preventing wind, thereby improving the windproof effect, thereby providing a safer and more stable traffic environment.

[0019] (2) The windshield is bent at a certain angle toward the road side to guide the crosswind, meet the flow field changes, and divert the crosswind to a certain extent. While reducing the impact of the crosswind on high-speed trains, it also reduces the burden of the wind barrier on the crosswind and reduces the wear of the crosswind on the windshield.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a wind energy storage type gradual wind barrier in an embodiment;

[0022] Figure 2 yes Figure 1 A side view of a wind energy storage type gradient wind barrier;

[0023] Figure 3 yes Figure 1 A front view of a wind energy storage type gradient wind barrier;

[0024] Figure 4 is a partial perspective view of a windshield in an embodiment;

[0025] Figure 5 Schematic diagram of the cross-sectional structure of the windshield in the embodiment;

[0026] Figure 6 is a schematic diagram of the overall arrangement of the wind turbine in the embodiment;

[0027] In the figure: 1. windshield unit, 1.1. windshield, 1.2. vent, 1.3. line pipe; 2. road; 3. wind turbine; 4. energy storage battery;

[0028] a. A wind shield with a ventilation hole area accounting for 20%; b. A wind shield with a ventilation hole area accounting for 40%; c. A wind shield with a ventilation hole area accounting for 60%; d. A wind shield with a ventilation hole area accounting for 80%. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0030] Example:

[0031] A wind energy storage type gradient wind barrier, reference Figure 1 and Figure 2 , including a plurality of windshield units 1 arranged on both sides of a road 2. In this embodiment, only two groups are illustrated. Each group includes four windshields arranged in series longitudinally. Those skilled in the art can arbitrarily arrange them on both sides of the road as needed. The windshields are arranged in both directions along the road, and the windshields are provided with ventilation holes 1.2, and the area ratio of the ventilation holes decreases linearly along the longitudinal direction from the far tunnel end to the near tunnel end. The area ratio of the ventilation holes 1.2 is in the range of 20%-80%. It is best to set four windshields according to four ventilation hole area ratios of 20%, 40%, 60% and 80%, such as Figure 2 As shown, a is a wind shield with a ventilation hole area accounting for 20%, b is a wind shield with a ventilation hole area accounting for 40%, c is a wind shield with a ventilation hole area accounting for 60%, and d is a wind shield with a ventilation hole area accounting for 80%.

[0032] By setting different ventilation holes on the windshield to form a varying proportion of ventilation hole area, the crosswind will have different degrees of flow velocity reduction after passing through the windshield unit, and the wind speed gradient will change more smoothly. While preventing wind, it allows a gradually increasing amount of air flow to pass through, thus improving the windproof effect. The wind energy storage type gradient wind barrier structure improves the windproof effect of the wind barrier to provide a safer, more stable and efficient traffic environment.

[0033] The height of the windshield 1.1 decreases as the proportion of the ventilation hole area of ​​the windshield 1.1 increases. The height of the windshield unit composed of four windshields is gradually changed, which can effectively alleviate the resistance of air to the running of high-speed trains and improve the stability of the overall structure.

[0034] The windshields 1.1 in each windshield unit 1 are detachably connected by fixing bolts, which is convenient for subsequent inspection and maintenance, and the construction is convenient, the overall performance is good, and the implementation effect is good.

[0035] The windshields 1.1 are all bent at a certain arc toward the road 2. The preferred curvature is 0.35, which is determined according to the wind speed, wind direction, terrain, location and shape of buildings in the actual area. The windshields are tilted and bent toward the inside of the road, which has a guiding effect on the crosswind, meets the flow field change, and diverts the crosswind to a certain extent. While reducing the impact of the crosswind on high-speed trains, it reduces the burden of the wind barrier on the crosswind and reduces the wear of the crosswind on the windshield.

[0036] It also includes a wind turbine 3 and an energy storage battery 4. The wind turbine 3 is arranged in the ventilation hole 1.2 and connected to the energy storage battery 4. The energy storage battery 4 is connected to the electrical equipment. By installing the wind turbine in the hollow ventilation hole of the windshield, the power is transmitted to the energy storage battery through the line and used for signal equipment, communication equipment, rail transportation equipment, lighting equipment, etc., saving energy.

[0037] Each windshield 1.1 is also provided with a line conduit 1.3, which is used for passing the connection line between the wind turbine 3 and the energy storage battery 4 inside the windshield 1.1. The wires and other lines are buried inside the windshield to avoid exposure of the lines and increase the service life. The line conduit can also reduce the weight of the windshield, which is convenient for lightweighting and saving materials.

[0038] In this embodiment, the turbulent flow is simulated and analyzed by an improved delayed detached eddy simulation method, and the yaw moment coefficient change rate and the nodding moment coefficient change rate of the wind barrier are significantly lower than those of the wind barrier. The length dimension calculation formula of the wind barrier is as follows:

[0039] l hyb =f hyb (1+f e ) RANS +(1-f hyb ) LES ;

[0040]

[0041] Where: l hyb represents the length of the wind barrier, f hybis the mixing function; f e is an enhancement function designed to prevent the RANS Reynolds stress from being excessively reduced; l RANS and l LES Represent the scales of the RANS and LES large eddy simulation areas respectively; d w is the distance from the wall; v t is the eddy viscosity; k is the von Karman constant; S and Ω are the coloration rate and rotation rate tensors normalized by the turbulence time scale, respectively; f step Tanh is a function that provides fast switching from RANS to LES at the boundary layer depth. This function can only be activated in the wall modeling LES mode. Tanh is a hyperbolic tangent function.

[0042] According to the formula calculation and numerical simulation technology, referring to the CRH380B train, the wind barrier composed of the windshield unit on one side is 0.3m thick, 3.5m to 4m high, and 150m long. Under this parameter, the diameter of the ventilation hole is preferably 10 to 30cm. The windproof is more stable and the integrity is better.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wind energy storage type gradual wind barrier, characterized in that: It comprises a plurality of windshield units (1) arranged on both sides of a road (2), wherein the windshield unit (1) comprises a plurality of windshields (1.1) arranged in series; A plurality of ventilation holes (1.2) are provided on the windshield (1.1) of each group of windshield units (1), and the total ventilation holes (1.2) on different windshields (1.1) in the same group of windshield units (1) occupy different areas of the windshield.

2. A wind energy storage type gradual wind barrier according to claim 1, characterized in that: The area ratio of the ventilation holes (1.2) is in the range of 20%-80%, and the ratio decreases gradually in the direction approaching the tunnel on the road (2).

3. A wind energy storage type gradual wind barrier according to claim 2, characterized in that: Each group of windshield units (1) comprises windshields (1.1) with four types of ventilation hole area ratios: 20%, 40%, 60% and 80%.

4. A wind energy storage type gradual wind barrier according to claim 3, characterized in that: The height of the wind shield (1.1) decreases as the proportion of the ventilation hole area of ​​the wind shield (1.1) increases.

5. The wind energy storage type gradual wind barrier according to claim 1, characterized in that: The wind shields (1.1) in each wind shield unit (1) are detachably connected via fixing bolts.

6. A wind energy storage type gradual wind barrier according to claim 1, characterized in that: The windshield plates (1.1) are all bent towards the road (2) side with a certain arc.

7. The wind energy storage type gradual wind barrier according to claim 1, characterized in that: It also comprises a wind generator (3) and an energy storage battery (4); the wind generator (3) is arranged in the ventilation hole (1.2) and connected to the energy storage battery (4); and the energy storage battery (4) is connected to the electrical equipment.

8. A wind energy storage type gradual wind barrier according to claim 7, characterized in that: Each windshield (1.1) is also provided with a line conduit (1.3), and the line conduit (1.3) is used for the connection line between the wind turbine (3) and the energy storage battery (4) to pass through the inside of the windshield (1.1).

9. The wind energy storage type gradual wind barrier according to claim 1, characterized in that: The windshield unit (1) has a thickness of 0.3 m, a height of 3.5 m to 4 m, and a length of 150 m.

10. The wind energy storage type gradual wind barrier according to claim 1, characterized in that: The diameter of the ventilation hole (1.2) is 10 to 30 cm.

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