System and method for relieving pneumatic effect of high-speed railway tunnel

Abstract

The invention discloses a high-speed railway tunnel aerodynamic effect relieving system and method. When a train enters a tunnel at a high speed, due to the fact that the space is limited by the tunnel wall and a train body, induced Mach waves are continuously spread and overlapped in the tunnel to form a complex wave system mountain. The device comprises a wind energy collecting and airflow adjusting device, a solar panel and a wind energy and solar energy storage device, and an air heating device is further arranged on the front side of the top of a train body and used for heating air in front of the train; and air pressure sensors are respectively arranged in the vehicle body and at the front part of the vehicle body. When the train passes through the tunnel, the air pressure state inside and outside the train is sensed, the heating device emits microwaves or lasers to heat air in front of the train in advance, the air expands in advance, the airflow adjusting device is started in an auxiliary mode, the existing air pressure difference is relieved or eliminated, and the pneumatic effect of the high-speed railway tunnel is relieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of alleviating aerodynamic effects in tunnels, and particularly relates to a system and method for alleviating aerodynamic effects in high-speed railway tunnels. Background Technique

[0002] When a train enters a tunnel at high speed, due to the limitation of space by the tunnel wall and the vehicle body, the induced Mach waves continuously propagate and superpose in the tunnel to form a complex wave system. This aerodynamic effect will induce pressure changes on the vehicle body and the tunnel surface, pressure differences inside and outside the vehicle, and pressure differences inside and outside the tunnel, thereby affecting riding comfort, the safety of the vehicle body and the buildings inside and outside the tunnel, etc. Moreover, with the continuous development of high-speed railways, the operation of higher-speed high-speed trains will bring more serious aerodynamic effects, which will further affect passengers and residents around the tunnel. In order to mitigate the impact brought by the aerodynamic effects, relevant measures are needed for alleviation.

[0003] Traditional solutions mainly include two aspects: vehicle body optimization and tunnel renovation, both of which are relatively costly, and it is difficult to renovate the tunnel due to some terrain conditions; therefore, exploring new technologies such as new energy conversion and air heating and expansion can provide a new direction for solving the problem of aerodynamic effects in high-speed railway tunnels. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a system and method for alleviating aerodynamic effects in high-speed railway tunnels, which can mitigate the aerodynamic effects of high-speed trains in tunnels.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A system for alleviating aerodynamic effects in high-speed railway tunnels, characterized in that:

[0007] It includes a wind energy collection and air flow regulation device, a solar panel, a wind energy and solar energy storage device, and a pressure sensing device. The wind energy collection and air flow regulation device is used to convert wind energy into electrical energy, the solar panel is used to convert solar energy into electrical energy, and the wind energy and solar energy storage device is used to store the generated electrical energy;

[0008] An air heating device is further provided at the front side of the top of the vehicle body for heating the air in front of the train; a pressure sensor is respectively provided inside the vehicle body and at the front part of the vehicle body;

[0009] The pressure sensing device is wirelessly communicatively connected to the pressure sensor, the air heating device, and the wind energy collection and air flow regulation device;

[0010] The wind energy and solar energy storage device is electrically connected to the pressure sensing device, the pressure sensor, the air heating device, and the wind energy collection and air flow regulation device.

[0011] Furthermore, the wind energy collection and air flow regulation device is arranged on both sides of the top of the vehicle head and is internally provided with a fan for bidirectional air flow regulation.

[0012] Furthermore, the air heating device is internally provided with a microwave or laser emitter.

[0013] Furthermore, the wind energy and solar energy energy storage device is arranged on the top of the vehicle body.

[0014] Furthermore, the solar panels are arranged on the top of the vehicle body.

[0015] Furthermore, the air pressure sensing device is arranged on the top of the vehicle body.

[0016] A method for alleviating the aerodynamic effect of high-speed railway tunnels includes the following steps:

[0017] Step 1: During the running of the high-speed train, the wind energy collection and air flow regulation device converts wind energy into electric energy, and the solar panels convert solar energy into electric energy. The generated electric energy is stored in the wind energy and solar energy energy storage device;

[0018] Step 2: After the high-speed train enters the tunnel, the air pressure sensor transmits the air pressure data collected in real time at the positions inside the vehicle body and in front of the vehicle body to the air pressure sensing device wirelessly;

[0019] Step 3: The air pressure sensing device compares the air pressure data at the positions inside the vehicle body and in front of the vehicle body. If the air pressure difference exceeds the standard set value, the air pressure sensing device adjusts the current working power of the air heating device according to the air pressure difference, and uses the microwave or laser emitter to heat the air in front of the train;

[0020] Step 4: The air pressure sensing device simultaneously controls the fan in the wind energy collection and air flow regulation device to blow air in the opposite direction of the train's running.

[0021] The beneficial effects of the present invention:

[0022] 1) When the train passes through the tunnel, the present invention senses the air pressure state inside and outside the train, and the heating device emits microwaves or lasers to heat the air in front of the train in advance, so that the air expands in advance, and the air flow regulation device is assisted to be turned on to relieve or eliminate the existing air pressure difference, so as to alleviate the aerodynamic effect of high-speed railway tunnels;

[0023] 2) In the process of heating the air by the present invention, the temperature of the tunnel is increased, and the problem of freezing damage of tunnels in cold regions can be alleviated;

[0024] 3) The present invention converts wind energy and solar energy into electric energy and stores them by using the high-speed running state of the train itself, which is low-carbon and environmentally friendly, and the surplus energy can also be used for the power supply of the train itself. Description of the Drawings

[0025] Figure 1Schematic diagram of the longitudinal layout of the present invention;

[0026] Figure 2 Schematic diagram of the transverse layout of the present invention. Detailed implementation manners

[0027] The present invention will be described in detail below in conjunction with the specific implementation manners.

[0028] When the train passes through the tunnel, the present invention senses the air pressure states inside and outside the train. The heating device emits microwaves or lasers to preheat the air in front of the train, causing the air to expand in advance, and assisting in opening the air flow regulating device to relieve or eliminate the existing air pressure difference, so as to alleviate the aerodynamic effect of the high-speed railway tunnel.

[0029] Such as Figure 1 、 2 shown, the aerodynamic effect mitigation system for high-speed railway tunnels of the present invention includes a wind energy collection and air flow regulating device, a solar panel, a wind energy and solar energy energy storage device, and a air pressure sensing device;

[0030] The wind energy collection and air flow regulating device is used to convert wind energy into electrical energy. The wind energy collection and air flow regulating device is arranged on both sides of the top of the train head, and a fan with two-way air flow regulation is built in. The wind energy and air flow regulating device uses the high-speed wind of the train to blow the built-in fan, converting mechanical energy into electrical energy. The present invention utilizes the high-speed driving state of the train itself to convert wind energy and solar energy into electrical energy and store it, which is low-carbon and environmentally friendly, and the remaining energy can also be used for the power supply of the train itself.

[0031] The solar panel is arranged on the top of the vehicle body. The solar panel is used to convert solar energy into electrical energy; the wind energy and solar energy energy storage device is used to store the generated electrical energy, and the wind energy and solar energy energy storage device is arranged on the top of the vehicle body.

[0032] An air heating device is also arranged on the front side of the top of the vehicle body, which is used to heat the air in front of the train. The air heating device is built with a microwave or laser emitter.

[0033] Air pressure sensors are respectively arranged inside the vehicle body and at the front part of the vehicle body. The air pressure sensing device is wirelessly communicatively connected to the air pressure sensors, the air heating device, and the wind energy collection and air flow regulating device; the wind energy and solar energy energy storage device is electrically connected to the air pressure sensing device, the air pressure sensors, the air heating device, and the wind energy collection and air flow regulating device. The air pressure sensing device is arranged on the top of the vehicle body.

[0034] The present invention also provides a method for mitigating the aerodynamic effect of high-speed railway tunnels, including the following steps:

[0035] Step 1: During the running of the high-speed train, the wind energy collection and air flow regulating device converts wind energy into electrical energy, and the solar panel converts solar energy into electrical energy. The generated electrical energy is stored in the wind energy and solar energy energy storage device;

[0036] Step 2: After the high-speed train enters the tunnel, the air pressure sensor transmits the air pressure data collected in real time at the positions inside the car body and in front of the car body to the air pressure sensing device wirelessly;

[0037] Step 3: The air pressure sensing device compares the air pressure data at the positions inside the car body and in front of the car body. If the air pressure difference exceeds the standard set value, the air pressure sensing device adjusts the current working power of the air heating device according to the air pressure difference, and uses a microwave or laser emitter to quickly heat the air in front of the train to achieve the effect of air expansion, thereby weakening the effect of the micro-pressure wave; The air heating device is wirelessly communicatively connected to the air pressure sensing device and can adjust the emission power in real time according to the air pressure sensing instruction; In addition to the adjustable power, the laser emitter can also adjust the heating effect by adjusting the wavelength and frequency. The direction of the laser emitted by the microwave or laser emitter can also be adjusted. According to the difference in air pressure around the train, the emission direction can be focused on the direction with a larger air pressure difference.

[0038] Step 4: The air pressure sensing device simultaneously controls the fan in the wind energy collection and air flow regulation device to blow air in the opposite direction of the train's travel.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] The content of the present invention is not limited to what is listed in the embodiments. Any equivalent transformation of the technical solution of the present invention made by those of ordinary skill in the art by reading the specification of the present invention is covered by the claims of the present invention.

Claims

1. A high-speed railway tunnel aerodynamic effect mitigation system, characterized by: It includes a wind energy collection and airflow regulation device, a solar panel, a wind energy and solar energy storage device and an air pressure sensing device, wherein the wind energy collection and airflow regulation device is used to convert wind energy into electrical energy, the solar panel is used to convert solar energy into electrical energy, and the wind energy and solar energy storage device is used to store the generated electrical energy; An air heating device is also provided on the front side of the top of the car body to heat the air in front of the train; air pressure sensors are provided inside the car body and at the front of the car body; The air pressure sensing device is wirelessly connected with the air pressure sensor, the air heating device, the wind energy collection and airflow regulating device; The wind energy and solar energy storage device is electrically connected to the air pressure sensing device, the air pressure sensor, the air heating device, the wind energy collection and airflow regulating device.

2. The high-speed railway tunnel aerodynamic effect mitigation system according to claim 1, characterized in that: The wind energy collection and airflow adjustment device is arranged on both sides of the top of the vehicle head, and has a built-in fan for two-way airflow adjustment.

3. A high-speed railway tunnel aerodynamic effect mitigation system according to claim 2, characterized in that: The air heating device has a built-in microwave or laser transmitter.

4. The high-speed railway tunnel aerodynamic effect mitigation system according to claim 3, characterized in that: The wind energy and solar energy storage device is arranged on the top of the vehicle body.

5. The high-speed railway tunnel aerodynamic effect mitigation system according to claim 4, characterized in that: The solar panel is arranged on the top of the vehicle body.

6. The high-speed railway tunnel aerodynamic effect mitigation system according to claim 5, characterized in that: The air pressure sensing device is arranged on the top of the vehicle body.

7. A method for alleviating aerodynamic effects in a high-speed railway tunnel, characterized in that: The steps include: Step 1: During the high-speed train's running, the wind energy collection and airflow regulation device converts wind energy into electrical energy, and the solar panels convert solar energy into electrical energy. The generated electrical energy is stored in the wind energy and solar energy storage device; Step 2: After the high-speed train enters the tunnel, the air pressure sensor transmits the real-time collected air pressure data inside the vehicle body and at the front of the vehicle body to the air pressure sensing device by wireless means; Step 3: The air pressure sensing device compares the air pressure data inside the vehicle body and at the front of the vehicle body. If the air pressure difference exceeds the standard setting value, the air pressure sensing device adjusts the current working power of the air heating device according to the air pressure difference, and uses microwaves or laser transmitters to heat the air in front of the train; Step 4: The air pressure sensing device simultaneously controls the fan in the wind energy collection and airflow regulation device to blow air in the opposite direction of the train's travel.

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