CN205545148U - V type slot type low power spotlight solar photovoltaic light and heat integrated device - Google Patents

Abstract

The utility model discloses a V type slot type low power spotlight solar photovoltaic light and heat integrated device, include: connect in the photovoltaic power generation component of electric user and battery, gather photovoltaic power generation component's V type slot type low power spotlight component with the Sun's rays, arrange the heat exchanger under the photovoltaic power generation component in, connect in the heat exchanger and receive thermal hot user. The utility model provides an adoption V type slot type reflector realizes carrying on the solar photovoltaic light and heat integrated device of low power spotlight to the photovoltaic cell subassembly, has overcome low power concentration photovoltaic system 's the bad problem of heat dissipation simultaneously, has not only improved ordinary silicon photocell's generating efficiency, has realized the integration of solar photovoltaic light and heat in addition, not only improves user's electric power but also provides the user heat, can solve some heat from far -off regions, electricity with the ability problem.

Description

V-groove low-magnification concentrated solar photovoltaic photothermal integrated device

technical field

The utility model relates to a solar power generation technology, in particular to a V-shaped groove-type low-magnification concentrating solar photovoltaic photothermal integrated device.

Background technique

Traditional fuel energy is decreasing day by day, and the damage to the environment is becoming more and more prominent. At the same time, there are still 2 billion people in the world who do not have normal energy supply. At this time, the whole world is turning its attention to renewable energy, hoping that renewable energy can change the energy structure of mankind and maintain long-term sustainable development. Among them, solar energy has become the focus of people's attention due to its unique advantages. Abundant solar radiation energy is an important energy source, which is inexhaustible, non-polluting, cheap, and can be freely utilized by human beings.

In recent years, photovoltaic power generation has developed rapidly internationally, and many megawatt-level photovoltaic power plants have been built in the world.

my country's photovoltaic power generation industry is also developing rapidly. During the "Twelfth Five-Year Plan" period, my country's new installed capacity of solar photovoltaic power stations is about 10 million kilowatts. Solar photovoltaic power generation has become one of the fastest growing industries in the world. At present, silicon photovoltaic cells are mainly used in the field of solar photovoltaics. However, pure solar silicon photovoltaic cells also have disadvantages, such as low efficiency of monocrystalline silicon and polycrystalline silicon cells, and the temperature rise of the surface of the solar light irradiated on the surface of the battery reduces the power generation efficiency. The use of solar photovoltaic power generation puts forward higher requirements.

Before this utility model, there have been various types of low-power concentrating photovoltaic power generation technologies at home and abroad, using concentrators to perform low-power concentrating on sunlight to achieve concentrated solar energy flow and improve the power generation efficiency of silicon photovoltaic cells. Although low-power concentration can improve power generation efficiency, this technology is still unable to be promoted in a large area. The main reasons are (1) ordinary silicon photovoltaic panels cannot solve the problem of heat dissipation after low-power concentration, and the solar panels at high temperatures Under these conditions, not only the efficiency drops significantly, but also there is a risk of cell burst damage. (2) If the solar panel uses aluminum or copper heat sinks for natural heat dissipation, a large number of heat sinks are required, and the cost is extremely expensive, which greatly reduces the cost performance; the existing technology has not yet solved this problem.

Utility model content

In order to solve the deficiencies of the prior art, the purpose of this utility model is to provide a solar photovoltaic/photothermal integrated device that uses a V-shaped groove reflector to realize low-power concentration of photovoltaic cell components, and at the same time overcomes the low power concentration The problem of poor heat dissipation of the photovoltaic system not only improves the power generation efficiency of ordinary silicon photovoltaic cells, but also realizes the integration of solar photovoltaic light and heat, which not only improves user power but also provides user heat, which can solve the problem of heat and electricity energy consumption in some remote areas .

In order to achieve the above object, the utility model adopts the following technical solutions:

V-groove low-power concentrating solar photovoltaic photothermal integrated device, including: photovoltaic power generation components connected to electricity users and batteries, V-groove low power concentrator components that gather sunlight to photovoltaic power generation components, placed The heat exchanger under the photovoltaic power generation module is a heat user that is connected to the heat exchanger and receives heat.

In the aforementioned V-groove low-magnification concentrated solar photovoltaic photothermal integrated device, the heat exchanger is provided with cooling water pipes.

In the aforementioned V-groove type low-power concentrating solar photovoltaic photothermal integrated device, a heat conducting member is provided between the photovoltaic power generation module and the heat exchanger.

In the aforementioned V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device, the heat conduction part is an aluminum back plate.

In the aforementioned V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device, the outer layer of the heat exchanger is provided with an insulating layer.

The aforementioned V-groove low-power concentrating solar-photovoltaic-thermal integrated device, the V-groove low-power concentrating component consists of: a glass cover placed on the photovoltaic power generation component, and flat reflectors placed on both sides of the glass cover .

The aforementioned V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device also includes: a cooling water control component connected to the cooling water pipeline.

The aforementioned V-groove type low-power concentrating solar photovoltaic photothermal integrated device, the cooling water control component consists of: a cooling water tank, a cooling water pump connected to the cooling water tank through a cooling water pipe, a cooling water flow regulating valve connected to the cooling water pump, Pressure gauge, return valve, flow meter connected between the cooling water pipeline and the cooling water flow regulating valve, connected to the temperature measuring point between the cooling water pipeline and the heat user.

The aforementioned V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device also includes: a maximum power point tracking controller connected between the photovoltaic power generation module, the electricity user, and the storage battery through wires.

In the aforementioned V-groove type low-power concentrating solar photovoltaic photothermal integrated device, the photovoltaic power generation components are arranged obliquely on the horizontal plane.

The utility model is beneficial in that: the utility model provides a solar photovoltaic/photothermal integrated device that uses a V-groove reflector to realize low-power concentration of photovoltaic cell components, and at the same time overcomes the low-power concentrated photovoltaic The problem of poor heat dissipation of the system not only improves the power generation efficiency of ordinary silicon photovoltaic cells, but also realizes the integration of solar photovoltaic light and heat, which not only improves user power but also provides user heat, which can solve the problem of heat and electricity energy consumption in some remote areas.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is a principle schematic diagram of an embodiment of the utility model in which light energy is converted into electric energy and thermal energy;

Meanings of reference signs in the figure:

1 sunlight, 2 wires, 3 maximum power point tracking controller, 4 battery, 5 electricity user, 6 cooling water tank, 7 cooling water pipe, 8 cooling water pump, 9 pressure gauge, 10 flow regulating valve, 11 flow meter, 12 return water Valve, 13 temperature measuring point, 14 heat user, 15 cooling water pipe, 16 insulation layer, 17 plane reflector, 18 plane reflector, 19 glass cover, 20 photovoltaic power generation module, 21 aluminum back plate.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is made concrete introduction.

V-groove low-power concentrated solar photovoltaic photothermal integrated device, including: a photovoltaic power generation module 20 connected to the electricity user 5 and battery 4, and a V-shaped groove low power concentration device that collects sunlight 1 to the photovoltaic power generation module 20 The light module, the heat exchanger placed under the photovoltaic power generation module 20, and the heat user 14 connected to the heat exchanger and receiving heat. As a preference, the photovoltaic power generation module 20 is a silicon photovoltaic cell. In order to increase heat transfer, a heat conduction element is provided between the photovoltaic power generation module 20 and the heat exchanger; as a preferred form, the heat conduction element is an aluminum back plate 21 . In order to reduce heat loss, an insulation layer 16 is provided on the outer layer of the heat exchanger. Such a structure makes the solar energy converted by the photovoltaic power generation assembly 20 into electric energy and transmitted to the electric user 5 or stored by the storage battery 4; the heat energy generated by the photovoltaic power generation assembly 20 during operation is applied by the heat exchanger, and the heat energy is transmitted to the heat user 14, so that the cold water into hot water.

A cooling water pipeline 15 is arranged inside the heat exchanger; a cooling water control assembly connected to the cooling water pipeline 15 is also included.

The aforementioned V-groove type low-power concentrating solar photovoltaic photothermal integrated device, the cooling water control component consists of: a cooling water tank 6, a cooling water pump 8 connected to the cooling water tank 6 through a cooling water pipe 7, and a cooling system connected to the cooling water pump 8. Water flow regulating valve 10, pressure gauge 9, return water valve 12, flow meter 11 connected between cooling water pipeline 15 and cooling water flow regulating valve 10, temperature measuring device connected between cooling water pipeline 15 and heat user 14 Point 13. The flow meter 11, the pressure gauge 9 and the temperature measuring point 13 realize the monitoring of the cooling water system.

The V-groove low-magnification concentrating component consists of: a glass cover 19 placed on the photovoltaic power generation component 20 , and plane reflectors 17 and 18 placed on both sides of the glass cover 19 . The V-groove low-power concentrating component performs low-power concentration on the sunlight 1 line, and the generated electric energy is sent to the maximum power point tracking controller 3 through the wire 2, and supplied to the power user 5, and the electric energy can also be sent to the 4 sets of batteries for energy storage. The hot water for cooling the V-groove low-power concentrating components is sent to the heat user 14, which realizes the low-power concentrating of the photovoltaic components and improves the power generation efficiency, and at the same time solves the cooling problem of the photovoltaic power generation components 20, and the cooling heat Comprehensive utilization of recycling.

In order to maximize the utilization of solar energy, as shown in FIG. 2 , the photovoltaic power generation assembly 20 is installed obliquely on a horizontal plane. α is the altitude angle of the sun, and β is the installation angle of the V-groove low power concentrator. The solar radiation energy obtained by the glass cover 19 is divided into three parts, which are direct solar radiation energy, solar radiation energy reflected by the plane reflector 17 , and solar radiation energy reflected by the plane reflector 18 .

The sunlight 1 line 15 transmits the light energy to the photovoltaic power generation module 20 through the V-shaped groove type low power concentrating module, and the photovoltaic power generation module 20 generates electric energy and is connected with the maximum power point tracking controller 3 through the wire 2, and the maximum power point tracking The controller 3 outputs electric energy to supply the electric user 5, and is connected with the storage battery 4 at the same time. When the power generation load of the V-shaped groove type low-power concentrating module is greater than the load of the electric user 5, the battery 4 is float-charged; when the load of the electric user 5 When the power generation load of the V-groove low-power concentrating module is greater than that, the storage battery 4 provides electric energy to the electricity user 5; in rainy weather, poor solar radiation or at night, the electricity user 5 is completely supplied by the battery 4.

The utility model provides a solar photovoltaic/photothermal integrated device that adopts a V-shaped groove reflector to realize low-power concentration of photovoltaic cell components, and at the same time overcomes the problem of poor heat dissipation of the low-power concentration photovoltaic system, and not only improves It not only improves the power generation efficiency of ordinary silicon photovoltaic cells, but also realizes the integration of solar photovoltaic light and heat, which not only improves user power but also provides user heat, which can solve the problem of heat and electricity energy consumption in some remote areas. The utility model has the advantages of the traditional flat-plate solar photovoltaic cell board and the concentrating solar cell assembly while avoiding the disadvantages of the two; uses silicon photoelectric cells to generate electric energy, and adopts cooling water to solve the heat dissipation problem of silicon photoelectric cells. Heat energy is provided to users, and 4 sets of batteries are used for photovoltaic energy storage, which can also provide users with electric energy in rainy weather or at night. The utility model has the advantages of low cost, reliable performance and convenient use, and creates conditions for the popularization of solar power generation technology.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the above-mentioned embodiments do not limit the utility model in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation all fall within the protection scope of the utility model.

Claims (10)

1. V-shaped trough-type low-power concentrating solar photovoltaic photothermal integrated device, which is characterized in that it includes: photovoltaic power generation components connected to electricity users and batteries, and V-shaped low-power troughs that gather sunlight to photovoltaic power generation components The concentrating component, the heat exchanger placed under the above-mentioned photovoltaic power generation component, and the heat user connected to the above-mentioned heat exchanger and receiving heat. 2. The V-groove low-magnification concentrated solar photovoltaic photothermal integrated device according to claim 1, characterized in that a cooling water pipe is arranged inside the heat exchanger. 3. The V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device according to claim 1, characterized in that a heat conducting member is provided between the photovoltaic power generation module and the heat exchanger. 4. The V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device according to claim 3, characterized in that the above-mentioned heat conducting member is an aluminum back plate. 5. The V-shaped trough-type low-power concentrating solar photovoltaic photothermal integrated device according to claim 1, characterized in that, the outer layer of the heat exchanger is provided with an insulating layer. 6. The V-groove type low-power concentrating solar photovoltaic photothermal integrated device according to claim 1, characterized in that, the above-mentioned V-shaped groove type low-power concentrating components are composed of: placed on the above-mentioned photovoltaic power generation components The glass cover is placed on the plane reflectors on both sides of the above-mentioned glass cover. 7. The V-groove type low-power concentrating solar photovoltaic photothermal integrated device according to claim 2, further comprising: a cooling water control component connected to the cooling water pipeline. 8. The V-groove type low-power concentrating solar photovoltaic photothermal integrated device according to claim 7, characterized in that the above-mentioned cooling water control component consists of: a cooling water tank connected to the cooling water tank through a cooling water pipe The water pump is connected to the cooling water flow regulating valve, pressure gauge, and return valve of the cooling water pump, and the flow meter is connected between the cooling water pipeline and the cooling water flow regulating valve, and is connected between the cooling water pipeline and the heat user. temperature measuring points. 9. The V-groove type low-power concentrating solar photovoltaic photothermal integrated device according to claim 1, further comprising: the maximum power connected between the above-mentioned photovoltaic power generation components, electric users and storage batteries through wires. Point track controller. 10. The V-groove type low-magnification concentrated solar photovoltaic photothermal integrated device according to claim 1, characterized in that, the above-mentioned photovoltaic power generation module is arranged obliquely on a horizontal plane.