CN205051623U - Photovoltaic light and heat integration power generation system - Google Patents

Abstract

The utility model relates to a photovoltaic light and heat integration power generation system, photovoltaic module and light and heat subassembly including the integration setting, photovoltaic module connect gradually and converge flow box, dc -to -ac converter and generate electricity with the transformer, the light and heat subassembly thermal -arrest case, heat exchanger, turbine and generator electricity generation connect gradually, the heat exchanger simultaneously the production of heat carry out the heat supply, photovoltaic module and light and heat subassembly set up simultaneously on a support, plane support that one side of this support set up for the slope that is used for placing photovoltaic module, the arc support of opposite side for being used for placing the light and heat subassembly, the plane support be inclination adjustable plane support, the arc support to be upper and lower position adjustable and can be at the support of unipolar direction free rotation. Compared with the prior art, the utility model discloses advantages such as the system has simple structure, simple to operate, low in cost, the generating dutation is all -weather, the suitability is strong.

Description

Photovoltaic-thermal integrated power generation system

technical field

The utility model relates to a photovoltaic power generation system, in particular to a photovoltaic photothermal integrated power generation system.

Background technique

Solar photovoltaic power generation is based on solar photovoltaic modules, which convert light energy into electrical energy. It is widely used as a new type of renewable energy. However, photovoltaic power generation also has its own limitations, for example: the energy obtained is closely related to the climate and geographical environment; the cost of power generation is relatively high; the manufacturing process of photovoltaic panels has certain pollution to the environment, etc.

Photothermal power generation is based on the theory of concentrating solar energy, using large-scale parabolic mirrors or dish-shaped mirrors to collect solar heat energy, storing the collected heat energy through heat-conducting media, and generating steam through heat exchange devices, so that steam pushes A traditional turbine then drives a generator to generate electricity.

At present, the large-scale technology of photovoltaic power generation is very mature, and the technology of photothermal power generation is also in the stage of steady development, but the scope is quite limited, and there is no parallel photovoltaic and photothermal power generation system on the market.

Chinese patent CN103456827A discloses a photovoltaic photothermal integrated system, including a photoelectric conversion device, a photothermal conversion device and a monitoring system. The cabinet is connected to electrically heat the water tank. The photothermal conversion device refers to the heat transfer between the photovoltaic photothermal integrated module and the water tank through the heat exchange device. The monitoring system monitors the power, irradiance, and power generation of the photovoltaic photothermal integrated module during operation. Quantity and other information; this patent combines the traditional single photovoltaic and photothermal systems into one, effectively reducing the temperature of photovoltaic photothermal integrated components, increasing water temperature, effectively reducing working costs, and improving the comprehensive utilization efficiency of solar energy. However, the configuration of the above-mentioned system structure is relatively complicated, and the power generation efficiency needs to be further improved.

Utility model content

The purpose of this utility model is to provide a photovoltaic photothermal integrated power generation system with simple structure, convenient installation, low cost, all-weather power generation time and strong applicability in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

A photovoltaic photothermal integrated power generation system, including integrated photovoltaic modules and photothermal modules, the photovoltaic modules are sequentially connected to a combiner box, an inverter and a transformer to generate electricity, and the photothermal modules are sequentially connected to a heat collector box , a heat exchanger, a turbine and a generator to generate electricity, and the heat exchanger simultaneously generates heat for heating.

The photovoltaic module and the photothermal module are arranged on a support at the same time. One side of the support is an inclined planar support for placing the photovoltaic module, and the other side is an arc-shaped support for placing the photothermal module.

The plane support is a plane support with adjustable inclination angle, and the arc support is a support with adjustable vertical position and free rotation in a single axis direction. It can be adjusted independently according to the local sunshine conditions.

The bracket is provided with a hook for hanging the photovoltaic module and the photothermal module.

The photovoltaic module is a plurality of photovoltaic panels arranged side by side, and the wires of each photovoltaic panel are connected to a combiner box, an inverter and a transformer in sequence.

The photothermal assembly includes a heat collection groove and a heat pipe, the heat collection groove is an arc-shaped groove body, and the heat pipe is arranged at the focal point of the heat collection groove to collect light and heat, and the heat pipe Connect the collector box, heat exchanger, turbine and generator in sequence.

There is a gap between the photovoltaic module and the photothermal module to facilitate ventilation and heat dissipation, and prevent the temperature of the photothermal module from being affected by the temperature of the photothermal module.

The photovoltaic photothermal integrated power generation system also includes energy storage equipment for storing excess electricity and excess heat.

If it is used in a large-scale array, it is necessary to calculate the angle and row spacing of the array according to the sunshine and weather conditions of the construction installation site, and then carry out construction debugging. Since the current generated by photovoltaic power generation is direct current, while solar thermal power generation is alternating current generated by a generator driven by a turbine, the two sets of power generation cannot be directly connected for grid transmission. to go online.

Compared with the existing technology, the system of the utility model uses hooks to hang the trough-type photothermal power generation structure under the photovoltaic module, and fix it with a bracket, and at the same time, leave enough distance between the photothermal trough and the photovoltaic module for ventilation Dissipate heat to prevent the heat generated by the photothermal tank from affecting the temperature of the photovoltaic module. Before the system is installed, it is necessary to set the row spacing and inclination angle according to the past climate data and sunshine conditions of the installation site, and then carry out large-scale installation and commissioning and grid-connected power generation.

Compared with a single photovoltaic or photothermal power generation system, this system has stronger weather adaptability and durability, greatly improved power generation efficiency, and can supply power or selectively heat in different ways according to different users, thereby reducing thermal power consumption. The pressure to obtain electricity and the pollution caused by residents to obtain thermal energy by burning coal and wood.

In addition, this system can add batteries and heat storage equipment according to user needs. The storage battery can guarantee the needs of users within a certain period of time, so that users do not need to consume electricity from the grid. On the one hand, it saves money, and on the other hand, it saves energy. The heat storage equipment can make the thermal power generation part continue to work after sunset, provide all-weather power generation, and can directly provide hot water and heating to users in some areas.

To sum up, this system has the advantages of simple structure, convenient installation, low cost, all-weather power generation time, and strong applicability.

Description of drawings

Figure 1 is a schematic diagram of the system structure;

Figure 2 is a schematic diagram of the three-dimensional structure of the combination of the bracket, the photovoltaic module and the photothermal module;

Figure 3 is a schematic diagram of the side view structure of the combination of the bracket, the photovoltaic module and the photothermal module;

Fig. 4 is the structural representation of support;

Figure 5 is a schematic diagram of the structure after the bracket and the photovoltaic panel are assembled;

Fig. 6 is a schematic diagram of the structure of the heat collecting tank;

Fig. 7 is a schematic diagram of the structure of the heat pipe.

In the figure, 1 is a support, 11 is a planar support, 12 is an arc-shaped support, 2 is a photovoltaic panel, 3 is a heat collecting tank, 4 is a heat pipe, and 5 is a support rod.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

A photovoltaic photothermal integrated power generation system, as shown in Figure 1, includes integrated photovoltaic modules and photothermal modules. The photovoltaic modules are sequentially connected to the combiner box, inverter and transformer for power generation, and the photothermal modules are sequentially connected to the collector box. , heat exchanger, turbine and generator generate electricity, and the heat exchanger simultaneously generates heat for heating. There is a gap between the photovoltaic module and the photothermal module to facilitate ventilation and heat dissipation, and to prevent the temperature of the photothermal module from affecting the temperature of the photovoltaic module.

As shown in Figure 2 and Figure 3, the photovoltaic module and the photothermal module are set on a support 1 at the same time. One side of the support 1 is an inclined plane support 11 for placing the photovoltaic module, and the other side is a The arc-shaped support 12 of the photothermal assembly.

As shown in Fig. 4 and Fig. 5, the planar support 11 is a planar support 11 with an adjustable inclination angle, and the arc support 12 is a support 1 with an adjustable vertical position and free rotation in a single axis direction. It can be adjusted independently according to the local sunshine conditions. The bracket 1 is provided with a hook for hanging the photovoltaic module and the photothermal module.

Referring to FIG. 5 , the photovoltaic module is a plurality of photovoltaic panels 2 arranged side by side, and the wires of each photovoltaic panel 2 are connected to a combiner box, an inverter and a transformer in sequence.

As shown in Figures 2, 6, and 7, the photothermal module includes a heat collecting tank 3 and a heat conducting tube 4. The heat collecting tank 3 is an arc-shaped tank body, and the heat conducting tube 4 is arranged on the heat collecting tank 3 through a support rod 5 to collect light and heat. At the focal point, the heat pipe 4 is sequentially connected to the heat collecting box, the heat exchanger, the turbine and the generator.

When conditions permit and necessary, the photovoltaic-thermal integrated power generation system also includes energy storage equipment for storing excess electricity and excess heat.

If it is used in a large-scale array, it is necessary to calculate the angle and row spacing of the array according to the sunshine and weather conditions of the construction installation site, and then carry out construction debugging. Since the current generated by photovoltaic power generation is direct current, while solar thermal power generation is alternating current generated by a generator driven by a turbine, the two sets of power generation cannot be directly connected for grid transmission. to go online.

The above description of the embodiments is for those of ordinary skill in the technical field to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative effort. Therefore, the utility model is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the utility model without departing from the category of the utility model should be within the protection scope of the utility model.

Claims (8)

1. A photovoltaic photothermal integrated power generation system, characterized in that it includes integrated photovoltaic modules and photothermal modules, the photovoltaic modules are sequentially connected to a combiner box, an inverter and a transformer to generate electricity, and the photothermal The components are sequentially connected to a heat collecting box, a heat exchanger, a turbine and a generator to generate electricity, and the heat exchanger simultaneously generates heat for heating. 2. A photovoltaic photothermal integrated power generation system according to claim 1, characterized in that, the photovoltaic module and the photothermal module are arranged on a support at the same time, and one side of the support is used to place the photovoltaic module The obliquely set planar support, and the other side is an arc-shaped support for placing photothermal components. 3. A photovoltaic photothermal integrated power generation system according to claim 2, characterized in that, the plane support is a plane support with an adjustable inclination angle, and the arc-shaped support is adjustable up and down and can be A stand that rotates freely in a single axis. 4. A photovoltaic photothermal integrated power generation system according to claim 2, characterized in that, the bracket is provided with a hook for hanging the photovoltaic module and the photothermal module. 5. A photovoltaic photothermal integrated power generation system according to claim 1, characterized in that, the photovoltaic modules are several photovoltaic panels arranged side by side, and the wires of each photovoltaic panel are connected to the combiner box, inverter transformers and transformers. 6. A photovoltaic photothermal integrated power generation system according to claim 1, characterized in that, the photothermal module includes a heat collecting tank and a heat pipe, and the heat collecting tank is an arc-shaped tank body, and the The above-mentioned heat-conducting pipe is arranged at the focus position of the heat-collecting tank for light and heat collection, and the above-mentioned heat-conducting pipe is sequentially connected to the heat-collecting tank, heat exchanger, turbine and generator. 7. A photovoltaic photothermal integrated power generation system according to claim 1, characterized in that there is a gap between the photovoltaic module and the photothermal module to facilitate ventilation and heat dissipation, and prevent the photothermal module from heating the photovoltaic module produce temperature effects. 8 . The photovoltaic-thermal integrated power generation system according to claim 1 , characterized in that, the photovoltaic-photothermal integrated power generation system further comprises an energy storage device for storing excess electricity and excess heat.