Photovoltaic and piezoelectric power generation energy supply air curtain constant temperature system applied to subway station
By using photovoltaic and piezoelectric power generation devices in subway stations to convert solar and mechanical energy into electrical energy and used in the constant temperature system of wind curtains, the problems of high energy consumption and pollution of the existing technology stroke curtains are solved, and energy conservation, environmental protection and sustainable development are achieved The effect of development.
Patent Information
- Application Number
- CN202420861087.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The air curtain constant temperature system of existing subway stations has high system usage costs and high energy consumption due to long-distance cable transmission, and its dependence on thermal power leads to polluting the environment.
Using photovoltaic power generation devices and piezoelectric power generation devices, solar energy and mechanical energy are converted into electrical energy through solar panels and pressure power generation panels, combined with energy storage batteries and inverters, provide electric energy for the air curtain machine, realize temperature regulation, reduce energy consumption, and Intelligent control is carried out through a single-axis mechanical light-chasing bracket and a temperature and humidity sensor.
It effectively reduces energy consumption in the subway station, reduces dependence on thermal power, reduces the pollution of the environment, achieves energy conservation, environmental protection and sustainable development, avoids the loss of power from long-distance transmission lines, and improves the economic benefits and comfort of the system.
Smart Images
Figure CN222169655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy for rail transportation, and in particular to a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation applied to subway stations. Background Art
[0002] The world has been facing energy problems. Especially as China has proposed strategies such as carbon peak and carbon neutrality, the energy structure system urgently needs to be reformed and optimized. Various new energy technologies are gradually being applied to different devices and systems. Subway stations are widely distributed in cities at all levels in China, and most of them are located underground, so air-conditioning systems are widely used in planning and design. In the next five-year plan, the green and energy-saving design of subway stations has attracted much attention. It shows that subway stations have important development prospects in energy utilization, energy conservation and environmental protection across the country.
[0003] At present, the air curtain constant temperature system used to adjust the temperature in domestic subway stations is mostly powered directly by the city power system. The air curtain constant temperature system control box is set at the entrance and exit of the subway station, subway tunnel and other suitable locations, and then connected to the power connection box of each air curtain machine. This method has the disadvantages of long cable transmission distance, high system cost and high energy consumption. Utility Model Content
[0004] The purpose of the utility model is to provide a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation for use in subway stations. While ensuring normal power supply for the wind curtain machine, it reduces the energy consumption for cooling and heating in the station, reduces dependence on thermal power, and reduces environmental pollution.
[0005] To achieve the above-mentioned purpose, the utility model provides a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation for use in subway stations, comprising a photovoltaic power generation device, a piezoelectric power generation device and a wind curtain device, wherein the photovoltaic power generation device comprises a solar panel, a photovoltaic combiner box and an MPPT controller, wherein the solar panel is arranged on the ceiling of the entrance and exit of the subway station, the solar panel is connected to the photovoltaic combiner box, and the photovoltaic combiner box is connected to the MPPT controller, the piezoelectric power generation device comprises a pressure power generation panel and a pressure power generation controller, wherein the pressure power generation panel is a plurality of panels laid on the stairs at the entrance and exit of the subway station and the platform inside the station, and the plurality of pressure power generation panels are connected to the pressure power generation controller; the wind curtain device comprises a wind curtain control box and a plurality of wind curtains, wherein the plurality of wind curtains are distributed at the entrance and exit of the subway station and inside the station, and the plurality of wind curtains are respectively connected to the wind curtain control box; the MPPT controller and the pressure power generation controller are respectively connected to energy storage batteries, and the energy storage batteries are sequentially connected to the wind curtain control box via a distribution box and an inverter, thereby providing power to the plurality of wind curtains.
[0006] Furthermore, the number of the solar panels is multiple groups, and the multiple groups of solar panels are arranged on the ceiling positions of the entrances and exits of the subway station through single-axis mechanical tracking brackets.
[0007] Furthermore, the single-axis mechanical light-chasing bracket includes a bracket, a support, a base, a supporting cylinder and a control device, wherein the bracket is used to fix and support the solar panel, and the support is hinged to one end of the bracket; the lower end of the supporting cylinder is arranged on the base, and the upper end of the supporting cylinder is connected to the solar panel for adjusting the inclination angle of the solar panel; the base is provided with the bottom of the support and is fixedly arranged on the ceiling of the subway station entrance and exit.
[0008] Furthermore, the wind curtain constant temperature system also includes a grid-connected switch cabinet connected to the inverter, the grid-connected switch cabinet is connected to the public power grid, and an electric energy meter and a communication mechanism are provided between the grid-connected switch cabinet and the public power grid.
[0009] Furthermore, the solar panel is a foldable solar panel.
[0010] Furthermore, the air curtain constant temperature system also includes a temperature and humidity sensor connected to the air curtain machine control box.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] (1) The wind curtain constant temperature system of the utility model includes a photovoltaic power generation device, a piezoelectric power generation device and a wind curtain device. The photovoltaic power generation device includes a solar panel, a photovoltaic junction box and an MPPT controller. The piezoelectric power generation device includes a pressure power generation panel and a pressure power generation controller. The wind curtain device includes a wind curtain control box and a plurality of wind curtains. The solar panel can be automatically adjusted and arranged at the ceiling position of the subway station entrance and exit. The pressure power generation panel is laid on the upper and lower stairs of the subway station entrance and exit and the platform inside the station. The MPPT controller and the pressure power generation controller are respectively connected to energy storage batteries, and the energy storage batteries are connected to the wind curtain control box through an inverter to provide power for the plurality of wind curtains to control the temperature in the subway station, reduce the energy consumption of adjusting the temperature in the subway station, intelligently control the convection inside and outside the station, constantly maintain a suitable temperature at the subway entrance and exit, and improve the comfort of passengers.
[0013] (2) The utility model adopts photovoltaic power generation and piezoelectric power generation devices to convert solar energy and mechanical energy into electrical energy to supply power to the wind curtain constant temperature system. The solar panels are combined with the entrance and exit ceiling part of the building, which effectively solves the problem of solar panel installation. The piezoelectric power generation device has a simple structure and wide applicability. It has no geographical or occasion restrictions, and has high power generation efficiency and green pollution. It can play a good role in building energy conservation and has good economic benefits. The pressure power generation panel is fully integrated with the subway station stairs and the platform inside the station, which can bring multiple benefits to the urban transportation system, such as energy conservation and environmental protection, renewable energy, sustainable development and cost savings.
[0014] (3) The wind curtain constant temperature system of the utility model does not need to be transported over long distances, thus avoiding the power loss caused by long-distance transmission lines and also saving transmission costs.
[0015] (4) The photovoltaic power generation device and the piezoelectric power generation device in the present invention have a simple structure, a small size, a light weight, and are easy to transport and install; the photovoltaic power generation device and the piezoelectric power generation device can be large or small according to the power load capacity of the system, are convenient and flexible, and are extremely easy to combine and expand.
[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation, which is applied to a subway station;
[0019] Figure 2 It is a schematic diagram of the arrangement of the photovoltaic power generation device in the utility model;
[0020] Figure 3 This is a control flow diagram of a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation, which is applied to subway stations;
[0021] Among them, 1-solar panel, 2-photovoltaic junction box, 3-MPPT controller, 4-pressure power generation panel, 5-pressure power generation controller, 6-air curtain control box, 7-air curtain, 8-energy storage battery, 9-distribution box, 10-inverter, 11-single-axis mechanical chasing bracket, 11.1-bracket, 11.2-support, 11.3-base, 11.4-support cylinder, 11.5-control device, 12-grid-connected switch cabinet, 13-temperature and humidity sensor. DETAILED DESCRIPTION
[0022] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.
[0023] See also Figures 1 to 3 This embodiment provides a wind curtain constant temperature system powered by photovoltaic and piezoelectric power generation for use in subway stations, including a photovoltaic power generation device, a piezoelectric power generation device, a wind curtain device, an energy storage battery 8, a distribution box 9 and an inverter 10. The specific structure is as follows:
[0024] The photovoltaic power generation device includes multiple groups of solar panels 1, photovoltaic junction boxes 2 and MPPT controllers 3 (MPPT controller is the abbreviation of "Maximum Power Point Tracking" solar controller). Multiple groups of solar panels 1 are arranged on the ceiling of the entrance and exit of the subway station through single-axis mechanical light tracking brackets 11. Multiple groups of solar panels 1 are electrically connected to the photovoltaic junction boxes 2, and the photovoltaic junction boxes 2 are also electrically connected to the MPPT controller 3. The piezoelectric power generation device includes a pressure power generation plate 4 and a pressure power generation controller 5. The pressure power generation plate 4 is a number of plates laid on the stairs at the entrance and exit of the subway station and the platform inside the station. Several pressure power generation plates 4 are electrically connected to the pressure power generation controller 5. The air curtain device includes an air curtain control box 6 and multiple air curtains 7. The air curtains 7 are respectively arranged at the entrance and exit of the subway station and in the subway station. The multiple air curtains 7 are electrically connected to the air curtain control box 5; among them, the air curtains arranged at the entrance and exit of the subway station can be preferably hanging air curtains, and the air curtains arranged in the subway station can be preferably vertical air curtains. The MPPT controller 3 and the pressure power generation controller 5 are connected to the energy storage battery 8 respectively, and the energy storage battery 8 is connected to the air curtain control box 6 via the distribution box 9 and the inverter 10 in turn, so as to provide power for multiple air curtains 7. In this structural setting, in order to reduce the pressure weight of the roof of the subway station entrance and exit, the solar panel 1 can use the XZL-A100 type monocrystalline silicon foldable (flexible) photovoltaic solar panel. After the light energy is converted into direct current by the photovoltaic solar panel, the MMPT controller can make the output power of the photovoltaic solar panel reach the optimal state and make the energy of the entire system reach the best match. Pressure power generation plates 4 are laid flat at appropriate locations at the entrance and exit stairs of subway stations and platforms in subway stations to convert the kinetic energy generated by people stepping on them into electrical energy; among them, the pressure power generation plates 4 can use pzt-5x piezoelectric ceramic sheets. When people entering and exiting the subway station and people walking on the platform in the station step on the ground installed with piezoelectric ceramic sheets, the gravitational potential energy generated causes the piezoelectric ceramic sheets to undergo mechanical deformation, which is converted into electrical energy through the piezoelectric effect, and the electrical energy is stored in the energy storage battery 8 to provide electrical energy for the air curtain machine. The air curtain constant temperature system of the utility model comprehensively collects and utilizes a variety of waste energy resources (solar energy and pressure energy) at the subway station entrance, effectively ensuring the stable electricity demand of the air curtain constant temperature system; at the same time, all these energy resources are renewable energy, which reduces the consumption of traditional fossil energy by thermal power generation and achieves energy conservation and emission reduction.
[0025] In a specific embodiment, the single-axis mechanical light-chasing bracket 11 includes a bracket 11.1, a support 11.2, a base 11.3, a support cylinder 11.4 and a control device 11.5. The bracket 11.1 is used to fix and support the solar panel 1, and the support 11.2 is hinged to one end of the bracket 11.1; the lower end of the support cylinder 11.4 is arranged on the base 11.3, and the upper end of the support cylinder 11.4 is connected to the solar panel 1, and is used to adjust the inclination angle of the solar panel 1.1; the base 11.3 is provided with the bottom of the support 11.2, and is fixedly arranged on the upper cover of the subway station entrance and exit. In this structural setting, the single-axis mechanical light-chasing bracket can be purchased, and the single-axis mechanical light-chasing bracket is used to adjust the solar panel to automatically track the azimuth and elevation of the sun according to the latitude of the installation site, so that the solar panel and the sunlight are always kept vertically irradiated, thereby generating the maximum power generation income.
[0026] In a specific implementation, the air curtain constant temperature system further includes a grid-connected switch cabinet 12 connected to the inverter 10, the grid-connected switch cabinet 12 is connected to the public power grid, and an electric energy meter and a communication mechanism are provided between the grid-connected switch cabinet 12 and the public power grid. In this structural setting, when the power of the energy storage battery 8 reaches 100%, the grid-connected switch cabinet 12 can be connected to transmit excess electric energy to the public power grid, thereby realizing distributed energy storage and source-grid-load storage.
[0027] In a specific implementation, the air curtain constant temperature system further includes a temperature and humidity sensor 13 connected to the air curtain control box 6; specifically, the temperature and humidity sensors are set at multiple locations in the subway station, and the temperature and humidity sensors transmit the monitored temperature and humidity to the air curtain control box 6, and the air curtain control box intelligently adjusts the air curtain to the optimal air volume and temperature according to the received temperature and humidity signals. At the same time, the staff can also set the high and low temperatures through the control terminal to adjust the air curtain to the optimal air volume and temperature.
[0028] 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 curtain constant temperature system powered by photovoltaic and piezoelectric power generation applied to subway stations, characterized in that: The invention comprises a photovoltaic power generation device, a piezoelectric power generation device and an air curtain device, wherein the photovoltaic power generation device comprises a solar panel (1), a photovoltaic junction box (2) and an MPPT controller (3), wherein the solar panel (1) is arranged on the ceiling of the entrance and exit of a subway station, wherein the solar panel (1) is connected to the photovoltaic junction box (2), wherein the photovoltaic junction box (2) is connected to the MPPT controller (3), wherein the piezoelectric power generation device comprises a pressure power generation panel (4) and a pressure power generation controller (5), wherein the pressure power generation panel (4) is a plurality of panels laid on the stairs at the entrance and exit of the subway station and on the platform inside the station, wherein the plurality of panels are provided ... The power generation board (4) is connected to the pressure power generation controller (5); the air curtain device comprises an air curtain control box (6) and a plurality of air curtains (7), the plurality of air curtains (7) are distributed at the entrance and exit of the subway station and inside the station, and the plurality of air curtains (7) are respectively connected to the air curtain control box (6); the MPPT controller (3) and the pressure power generation controller (5) are respectively connected to the energy storage battery (8), and the energy storage battery (8) is connected to the air curtain control box (6) in turn via a distribution box (9) and an inverter (10), thereby providing electrical energy for the plurality of air curtains (7).
2. The air curtain constant temperature system according to claim 1, characterized in that: The solar panels (1) are provided in a plurality of groups, and the plurality of groups of solar panels (1) are respectively arranged at the ceiling positions of the entrances and exits of the subway station via single-axis mechanical light-chasing brackets (11).
3. The air curtain constant temperature system according to claim 2, characterized in that: The single-axis mechanical light-chasing bracket (11) comprises a bracket (11.1), a support (11.2), a base (11.3), a support cylinder (11.4) and a control device (11.5); the bracket (11.1) is used to fix and support the solar panel (1); the support (11.2) is hinged to one end of the bracket (11.1); the lower end of the support cylinder (11.4) is arranged on the base (11.3); the upper end of the support cylinder (11.4) is connected to the solar panel (1) for adjusting the inclination angle of the solar panel (1); the base (11.3) is arranged at the bottom of the support (11.2) and is fixedly arranged on the ceiling of the entrance and exit of the subway station.
4. The air curtain constant temperature system according to claim 1, characterized in that: The wind curtain constant temperature system also includes a grid-connected switch cabinet (12) connected to the inverter (10), the grid-connected switch cabinet (12) is connected to a public power grid, and an electric energy meter and a communication mechanism are provided between the grid-connected switch cabinet (12) and the public power grid.
5. The air curtain constant temperature system according to claim 1, characterized in that: The solar panel (1) is a foldable solar panel.
6. The air curtain constant temperature system according to any one of claims 1 to 5, characterized in that: The air curtain constant temperature system also includes a temperature and humidity sensor (13) connected to the air curtain machine control box (6).