CN114963577A - Energy tower for generating power by combining wind energy and solar energy - Google Patents

Abstract

The invention discloses an energy tower for wind energy and solar energy cooperative power generation, which belongs to the field of power generation towers and comprises: the energy tower body comprises a light facing surface and a backlight surface on the outer surface; the light-facing surface is made of transparent materials and can be irradiated by sunlight; the outer layer of the backlight surface is a black body heat absorption coating, the middle layer is a heat storage and insulation layer, and the innermost layer is a solar photovoltaic panel; the solar photovoltaic panel is arranged inside the energy tower body; a phase change heat storage pipe is embedded in the heat storage insulating layer; the automatic air draft device is arranged at an air outlet at the top of the energy tower body; the power generation fans are arranged at the upper part of the air inlet of the energy tower body; the invention can solve the problems that the utilization of wind energy and solar energy is limited by natural conditions, the wind energy and the solar energy cannot be continuously utilized and the efficiency is low.

Description

An energy tower for co-generation of wind and solar energy

technical field

The present invention relates to the field of power generation towers, in particular to an energy tower for synergistic power generation of wind energy and solar energy.

Background technique

At present, the main energy source of mankind is fossil energy, but fossil energy is non-renewable energy, which will not only face the risk of depletion, but also cause irreversible impact on the environment and climate in the process of development and use.

The development of renewable energy and green energy is an important direction of my country's energy development. Wind energy and solar energy are renewable energy that can be seen everywhere. They are inexhaustible in nature and are ideal green energy.

Wind energy is the kinetic energy generated by the movement of air. The total reserves of wind energy resources are very huge, and the energy that can be technically developed in one year is about 5.3*10 ¹³ kWh. Wind energy is a renewable and clean energy with large reserves and wide distribution, but its energy density is low (only 1/800 of that of water energy) and unstable. Under certain technical conditions, wind energy can be developed and utilized as an important energy source. Wind energy utilization is a comprehensive engineering technology that converts the kinetic energy of wind into mechanical energy, electrical energy and thermal energy through wind turbines.

Solar energy is a kind of renewable energy, which refers to the thermal radiation energy of the sun (see the three ways of heat energy transmission: radiation), which is generally used to generate electricity or to provide energy for water heaters. With the decrease of fossil fuels, solar energy has become an important part of the energy used by human beings, and it has been continuously developed. There are two ways to utilize solar energy: photothermal conversion and photoelectric conversion. Solar power generation is an emerging renewable energy source.

Wind energy and solar energy are currently the most widely used green energy sources, but the utilization of wind energy is affected by the magnitude of the wind, and the utilization of solar energy is also limited by time.

The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an energy tower for synergistic power generation of wind energy and solar energy, which can solve the problems that the utilization of wind energy and solar energy cannot be continuously utilized due to natural conditions, and the efficiency is low.

In order to achieve the above purpose, the present invention provides an energy tower for synergistic power generation of wind energy and solar energy, including:

The energy tower body, its outer surface includes a light-facing surface and a backlight surface; the light-facing surface is made of a transparent material, which can allow sunlight to pass through; the outer layer of the backlight surface is a black body heat-absorbing coating, and the middle layer is a a heat storage and insulation layer, the innermost layer is a solar photovoltaic panel; the solar photovoltaic panel is arranged inside the energy tower body; the heat storage and insulation layer is inlaid with a phase-change heat storage tube;

an automatic air extraction device, which is arranged at the air outlet on the top of the energy tower;

a plurality of generator fans, which are arranged on the upper part of the air inlet of the energy tower body;

A plurality of air guides are arranged at the air inlets of the energy tower body.

In an embodiment of the present invention, the energy tower body 11 is a tower-shaped structure, and the tower-shaped structure is constructed in the form of modular multi-layer multi-group according to its height.

In an embodiment of the present invention, the generator fans are arranged in layers, and the number of generator fans in each layer is uniformly arranged in single or multiple layers according to the size of the blades and the size of the energy tower; each layer of the energy tower body is provided with Inlet.

In an embodiment of the present invention, the power generation fans are arranged in multiple layers, and a single or multiple power generation fans are arranged in each layer; at the vent.

In an embodiment of the present invention, a heat storage tank is arranged at the bottom of each layer in the energy tower body, a heat storage tank is arranged at the bottom of each layer in the energy tower body, and the end of the phase change heat storage tube is connected to the The heat storage tank is connected, and the medium of the heat storage tank is water, mineral oil, ethanol or ether.

In an embodiment of the present invention, a battery is provided on the outer side of the bottom of the energy tower body, and the solar photovoltaic panel and the generator fan are connected to the battery through an inverter.

In one embodiment of the present invention, the number of the phase-change heat storage tubes is plural, and they are arranged in parallel with each other in the heat storage and heat preservation layer.

In an embodiment of the present invention, the air guide is a tapered variable-section structure, and its cross-section gradually decreases in the flow direction of the air.

In an embodiment of the present invention, a plurality of guide fins are arranged on the inner wall of the air guide, and the guide fins are arranged in the form of spiral lines in the flow direction of the air; the upper surface of the air guide is formed by Made of translucent material.

In an embodiment of the present invention, the wind energy and solar energy co-generation energy tower is used for power supply, heating, cooling and hydrogen production.

Compared with the prior art, the energy tower of the present invention can not only generate solar power, but also utilize solar heat storage to improve the efficiency of wind power generation. It has wind power, solar power and solar heat storage. It is a multifunctional form that can generate electricity from wind and solar energy at the same time and use solar thermal storage to synergize wind energy for high-efficiency power generation. In addition, the air inlet of the present invention adopts the design of the air guide, which can effectively increase the wind speed and thereby improve the efficiency of converting wind energy into electrical energy, and has the advantages of simple structure, convenient maintenance, and effectively improving the utilization efficiency of wind energy and solar energy. It has a wide range of applications. It adopts tower body design and occupies a small area. The energy tower is modularized in multiple groups and multi-layer design.

Description of drawings

1 is a schematic diagram of an energy tower for co-generating wind energy and solar energy according to an embodiment of the present invention;

2 is a schematic diagram of an energy tower for co-generating wind energy and solar energy according to an embodiment of the present invention;

3 is a partial cross-sectional view of a multi-layer and multiple sets of fans of an energy tower for wind and solar synergistic power generation according to an embodiment of the present invention;

4 is a partial top view of an air guide port of an energy tower for co-generating wind energy and solar energy according to an embodiment of the present invention;

5-1 to 5-3 are different arrangements of the single-layer permanent magnet fan of an energy tower of a wind and solar energy co-generation according to an embodiment of the present invention.

Description of main reference signs:

1-Maintenance straight ladder, 2-Air guide, 3-Storage battery, 4-Maintenance platform, 5-Black body heat absorbing coating, 6-Regenerative thermal insulation layer, 7-Phase change heat storage tube, 8-Regenerator tank, 9- Solar photovoltaic panel, 10-generating fan, 11-energy tower body, 12-automatic ventilation device, 13-guide sheet, 14-transparent layer.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprising" or its conjugations such as "comprising" or "comprising" and the like will be understood to include the stated elements or components, and Other elements or other components are not excluded.

As shown in FIG. 1 to FIG. 5 , an energy tower for synergistic power generation of wind and solar energy according to a preferred embodiment of the present invention includes an energy tower body 11 , and the energy tower body 11 is a tower-shaped structure, and the cross-sectional form of the tower is not limited to an equal cross-section. , variable section, the tower is built in the form of modular multi-layer multi-group according to the height. For the modular multi-layer multi-group structure of the energy tower body 11, the structure in each layer is exactly the same as the specific equipment used. When building the energy tower, different numbers of modules can be selected for assembly according to the required height.

The interior of the energy tower body 11 is a hollow channel, the lower part is the air inlet, and the top is the air outlet, which is convenient for the air to circulate from bottom to top, thereby realizing wind power generation. The air inlets located below are not limited to a single one, but can also be multiple. When there are multiple air inlets, the air inlets can be arranged in layers to collect wind at various heights.

The outer surface of the energy tower body 11 is divided into two parts: a light-facing surface and a backlight surface. The ratio of the light-facing surface to the outer surface area of the energy tower body 11 is determined according to different sunlight characteristics in different regions.

The composition of the front side and the back side is different. The light-facing surface of the energy tower body 11 is a light-transmitting layer 14 , which is made of a transparent material and can allow sunlight to pass through, and then enter the interior of the energy tower body 11 . The backlight surface of the energy tower body 11 is composed of a three-layer structure, the outer layer is a black body heat absorbing coating 5, the middle layer is a heat storage and insulation layer 6, and the innermost layer is a solar photovoltaic panel 9, which can receive the sun in the energy tower body 11. The irradiation of light generates solar power. Phase-change heat storage tubes 7 are embedded in the heat-storage insulation layer 6, wherein the number of phase-change heat-storage tubes 7 is plural, and they are arranged parallel to each other in the heat storage and insulation layer 6 for absorbing heat energy.

In addition, part of the solar energy that is not converted into electricity is converted into heat in the vertical pipe, which can heat the air in the vertical pipe, form a vertical upward hot air flow, increase the speed of the air, and push the wind turbine in the pipe to generate electricity.

An automatic air extraction device 12 is installed at the outlet of the tower top of the energy tower body 11, and a plurality of air guides 2 are evenly distributed in all directions at the air inlet at the lower part of the energy tower body 11. When there are multiple air inlets, each air inlet A plurality of air guides are arranged; a single or multiple generator fans 10 are arranged in the upper part of the energy tower body 11 . In the energy tower body 11 , multiple groups of air inlets and generator fan layers can be modularly built according to height requirements.

The air guide 2 adopts a tapered variable-section structure, and its cross-section is gradually reduced in the flow direction of the air, which can increase the air inlet speed, thereby improving the power generation efficiency. As shown in FIG. 4 , several guide fins 13 are arranged on the inner wall of the air guide 2. The guide fins 13 are arranged in the form of spirals in the flow direction of the air, which can be used to increase the air flow rate.

The upper surface of the air guide 2 can be made of a transparent material, allowing sunlight to pass through, thereby heating the air and the ground inside the air guide 2; it is also possible to install an efficient light-absorbing material on the air guide 2, through the heat pipe. Heat is delivered directly to the interior of the vertical duct to heat the air in it.

When there are multiple generator fans 10, the generator fans 10 can be arranged in layers. FIG. 3 is a schematic diagram of the generator fans 10 arranged in two layers, and the number of the generator fans in each layer is single or single according to the size of the blade and the size of the energy tower. Multiple evenly arranged, specifically, a single generator fan can be arranged in the center of the energy tower or a plurality of generator fans can be evenly arranged around the center of the energy tower body 11. Fig. 5-1 is a schematic diagram of 6 generator fans 10 arranged in each floor , Figure 5-2 is a schematic diagram of setting 7 generator fans 10 on each floor, Figure 5-3 is a schematic diagram of a single generator fan 10 set on each layer, but the setting form of the generator fan of the present invention is not limited to this, and can be designed according to actual Specific settings are required. The multi-layer and multi-group combined structure of the energy tower body 11 can be adjusted according to the size of the space. In a sparsely populated area, the tower can be built taller and larger. In densely populated areas, the volume of energy towers can be reduced.

A maintenance platform 4 is provided on the installation layer of the power generation fan 10 of the energy tower body 11 , and for the convenience of maintenance, a maintenance ladder 1 is provided outside the energy tower body 11 .

The automatic air extraction device 12 on the top of the energy tower body 11 does not require electricity, and relies on the natural wind and the temperature difference between inside and outside the tower to drive the rotation of the air extraction device 12, and can automatically rotate in the state of breeze and a small temperature difference inside and outside the tower, and the pump The internal air is sucked to accelerate the air flow, thereby driving the rapid rotation of the generator fan 10 to improve the power generation efficiency.

The bottom of each layer in the energy tower body 11 is provided with a heat storage tank 8, and the end of the phase change heat storage pipe 7 is connected to the heat storage tank 8, so that the heat collected by the phase change heat storage pipe 7 can be used for the heat storage tank 8. The medium is heated, and the medium can be water, mineral oil, ethanol, ether, etc. The battery 3 is placed on the outer side of the bottom of the energy tower body 11 . The solar photovoltaic panel 9 and the generator fan 10 are connected to the battery 3 through the inverter. When the sunlight passes through the transparent material on the light-facing side and irradiates the solar photovoltaic panel 9 on the backlight side, electricity is generated directly, and the electrical energy is stored in the inverter via the inverter. In the storage battery 3 outside the bottom of the energy tower body 11 .

The solar heat absorbed by the solar photovoltaic panel 9 due to the temperature rise caused by the irradiation of sunlight is transferred to the phase change heat storage tube 7 through the heat storage and insulation layer 6, and the phase change heat storage tube 7 is connected to the heat storage tank 8, and finally the solar heat energy is used for heating. storage in the form of media. In addition, the black body heat absorbing coating 5 on the backlight surface of the energy tower body 11 can absorb the heat energy in the external environment, and transfer it to the phase change heat storage tube 7 via the heat storage insulation layer 6, and the phase change heat storage tube 7 is inserted into the heat storage tube 7. In the tank 8, the thermal energy in the final environment is stored in the form of a heating medium. At the same time, by absorbing the irradiation of the solar tube and the heat in the external environment, the temperature inside the energy tower body 11 can be increased, and the air flow rate inside can be increased.

In addition, the heat storage tank 8 can also be used to provide a domestic heat source, thereby saving energy. In addition, the energy tower of the present invention for co-generation of wind energy and solar energy has a wide range of uses, and can not only supply electricity and heat, but also provide refrigeration, hydrogen production, and the like.

The air is introduced into the energy tower body 11 after the speed of the variable-section air guide 2 is increased. Since the temperature inside the energy tower body 11 is much higher than the outside temperature, the air is heated and the flow rate increases, and then the air moves rapidly inside the energy tower body 11. Flowing upward, the blades of the generator fan 10 are blown to rotate rapidly, thereby realizing high-efficiency power generation of the generator fan 10 .

After the temperature drops at night, the heat energy stored in the heat storage tank 8 is released into the energy tower body 11 through the phase change heat storage tube 7, thereby heating the air in the tower, promoting the air to flow faster, and further improving the permanent magnet generator at night. 10 power generation efficiency.

The energy tower of the present invention is a multifunctional energy tower integrating wind power generation, solar power generation and solar thermal energy utilization, which makes up for the shortcoming that solar power generation is limited by time, and also makes up for the shortcoming of low wind power generation efficiency. In addition, the present invention has a wide range of applications, is not limited by regions, and has strong adaptability to space.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many changes and modifications are possible in light of the above teachings. The exemplary embodiments were chosen and described for the purpose of explaining certain principles of the invention and their practical applications, to thereby enable one skilled in the art to make and utilize various exemplary embodiments and various different aspects of the invention. Choose and change. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims (10)

1. An energy tower for synergistic power generation of wind energy and solar energy, characterized in that, comprising: The energy tower body, its outer surface includes a light-facing surface and a backlight surface; the light-facing surface is made of a transparent material, which can allow sunlight to pass through; the outer layer of the backlight surface is a black body heat-absorbing coating, and the middle layer is a a heat storage and insulation layer, the innermost layer is a solar photovoltaic panel; the solar photovoltaic panel is arranged inside the energy tower body; the heat storage and insulation layer is inlaid with a phase-change heat storage tube; an automatic air extraction device, which is arranged at the air outlet on the top of the energy tower; a plurality of generator fans, which are arranged on the upper part of the air inlet of the energy tower body; A plurality of air guides are arranged at the air inlets of the energy tower body. 2 . The energy tower of claim 1 , wherein the energy tower body is a tower-shaped structure, and the tower-shaped structure is constructed in the form of modular multi-layer multi-group according to its height. 3 . 3. The energy tower for synergistic power generation of wind energy and solar energy as claimed in claim 2, wherein the power generation fans are arranged in layers, and the number of power generation fans in each layer is uniform according to the size of the blade and the size of the energy tower. arrangement; each layer of the energy tower body is provided with an air inlet. 4. The energy tower of claim 3, wherein the power generating fans are arranged in multiple layers, and a single or a plurality of the power generating fans are arranged in each layer; At the air inlet on each layer of the energy tower body. 5 . The energy tower of claim 3 , wherein the bottom of each layer in the energy tower is provided with a heat storage tank, and the end of the phase change heat storage tube is connected to the The heat tank is connected, and the medium of the heat storage tank is water, mineral oil, ethanol or ether. 6. The energy tower of claim 1, characterized in that, a battery is arranged on the outer side of the bottom of the energy tower body, and the solar photovoltaic panel and the power generation fan are connected to the power generation fan through an inverter. battery is connected. 7 . The energy tower of claim 1 , wherein the number of the phase-change heat storage tubes is plural, and they are arranged in parallel to each other in the heat storage and insulation layer. 8 . 8 . The energy tower of claim 1 , wherein the air guide is a tapered variable-section structure, and its cross-section is gradually reduced in the flow direction of the air. 9 . 9 . The energy tower of claim 1 , wherein the inner wall of the air guide is provided with a plurality of guide fins, and the guide fin adopts a spiral in the flow direction of the air. 10 . Arranged in the form of lines; the upper surface of the air guide is made of light-transmitting material. 10. The energy tower for co-generation of wind energy and solar energy according to any one of claims 1 to 9, characterized in that it is used for power supply, heat supply, refrigeration and hydrogen production.

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