CN205372733U - Spotlight type solar heating power generation system - Google Patents

Abstract

The utility model discloses a concentrating solar heating power generation system, which comprises: a heliostat for tracking the sun and reflecting the sunlight; a heat absorbing body for receiving the sunlight reflected by the heliostat and Solar energy is converted into thermal energy for heating; photovoltaic modules are installed between the heliostat and the heat absorber, and are used to block and absorb sunlight reflected by the heliostat during non-heating seasons, and convert solar energy into electrical energy. The utility model has the advantages that: the outdoor energy transmission of this system is all light transmission, which reduces the conventional equipment such as pipelines, heat preservation, water pump valves, etc., and completely avoids the problem of pipeline heat preservation and antifreeze. The heat dissipation of the box is also fully utilized, and the system efficiency is greatly improved; in the non-heating season, the photovoltaic modules are used to convert the solar energy originally gathered on the heat-absorbing surface of the thermal storage box into electrical energy, making full use of the equipment investment such as heliostats, Improve system economics.

Description

A concentrating solar heating power generation system

technical field

The utility model relates to the technical field of solar heating, in particular to a concentrating solar heating power generation system.

Background technique

Solar heating refers to the conversion of scattered solar energy into convenient hot water through heat collectors (for example: flat solar collectors, vacuum solar tubes, solar heat pipes, etc.) A system that provides room heating at the end (eg floor heating system, radiator system, etc.). Since the heating area is usually a cold area in winter, considering the problem of antifreeze, most systems in our country are implemented with vacuum tube collectors.

Insulation and antifreeze are two major difficulties in solar heating systems. In the current solar heating systems, the collectors are usually placed outdoors, and the heat carrier is transported to the indoor cooling terminal through the insulation pipes. Since the heating season is a cold season, antifreeze and heat preservation must be considered, otherwise it will cause problems such as cracking of pipes and a decrease in heat collection efficiency, which will seriously affect the use of the heating system. At present, the commonly used antifreeze method is to use antifreeze, heat transfer oil and other low freezing point medium in the pipeline to prevent the pipe from bursting. Some engineering projects need to install an electric heating system to defrost in the severe cold season, which has caused the cost of the system and operating costs. Increase.

Another problem with the heating system is that in non-heating seasons, the solar collectors installed for the heating system can only be idle and cannot be used to their full potential, resulting in a huge waste of investment, which doubles the cost of solar heating and is also an obstacle One of the bottlenecks in the development of solar heating.

Utility model content

The purpose of this utility model is to overcome the problems of heat preservation and antifreeze and utilization rate in the solar heating system in the prior art, and provide a high-efficiency concentrating solar heating power generation system that does not need heat preservation and antifreeze and can be fully utilized throughout the year.

The utility model is realized through the following technical solutions: a concentrating solar heating power generation system, which includes:

Heliostats, which track the sun and reflect sunlight;

The heat absorber is used to receive the sunlight reflected by the heliostat and convert the solar energy into heat energy for heating;

The photovoltaic module is installed between the heliostat and the heat absorber, and is used to block and absorb the sunlight reflected by the heliostat in the non-heating season, and convert the solar energy into electrical energy.

The heat absorbing body includes a heating room surrounded by thermal insulation walls, a thermal insulation heat storage box placed in the heating room and equipped with a heat carrier, a thermal insulation transparent window, and a heat transfer pipe. The thermal insulation transparent window is arranged toward the On the heat preservation wall of the heliostat, the heat transfer pipe is connected with the heat preservation heat storage box.

A heat absorbing surface is provided on a side of the heat preservation heat storage box facing the heat preservation light transmission window.

In the non-heating season, the photovoltaic module is installed in front of the thermal insulation window.

In the heating season, the heliostat array tracks the sun through its built-in tracking system, and reflects the sunlight to the thermal insulation and light-transmitting window installed on the thermal insulation wall of the heat absorbing body, through which the sunlight gathers to the thermal insulation heat storage tank. The heat-absorbing surface is absorbed and converted into heat energy to heat the heat carrier in the heat storage tank. When the temperature of the heat carrier reaches the temperature required for heating, the heat is transported to the heating end through the heat transfer pipe to provide heating heat.

In the non-heating season, a set of photovoltaic modules is installed between the thermal insulation window and the heliostat to block and absorb the sunlight reflected by the heliostat, which can not only avoid the temperature rise of the heat storage box, but also make the solar energy Make full use of the electricity generated. The electric energy can be used by oneself or sold online. This system makes full use of invested equipment such as heliostats, which can be fully utilized throughout the year without causing idle resources.

Compared with the prior art, the utility model has the following advantages:

(1) The transmission of outdoor energy is all light transmission, reducing conventional equipment such as pipelines, heat preservation, water pump valves, etc.;

(2) The outdoor energy transmission is all light transmission, which completely avoids the problem of pipeline insulation and antifreeze, and the system operation is safer and more reliable.

(3) Since there are no pipes, valves and other components to dissipate heat, and the heat preservation heat storage box is placed inside the heating room, the heat dissipation of the heat preservation heat storage box is also fully utilized to provide heat for room heating. The entire system does not have any heat dissipation links, and the system efficiency is high. Greater improvement.

(4) In the non-heating season, the photovoltaic modules are used to convert the solar energy originally gathered on the heat-absorbing surface of the thermal storage tank into electric energy, which fully utilizes the investment in equipment such as heliostats and improves the economy of the system.

Description of drawings

Fig. 1 is the installation structure schematic diagram of the utility model embodiment 1;

Fig. 2 is a structural schematic diagram of light transmission in Embodiment 1 of the utility model;

Fig. 3 is a schematic structural view of the heating element in the heating season of Example 1 of the utility model;

Fig. 4 is a schematic diagram of the installation position of the photovoltaic module in the non-heating season of Embodiment 1 of the utility model;

Fig. 5 is a schematic diagram of the installation structure of the utility model embodiment 2;

Fig. 6 is a schematic structural diagram of light transmission in Embodiment 2 of the present invention;

Fig. 7 is a schematic structural diagram of a heating element in heating season according to Example 2 of the utility model;

Fig. 8 is a schematic diagram of installation positions of photovoltaic modules in non-heating seasons according to Embodiment 2 of the present utility model.

Meanings of reference signs in the figure: 1. Heliostat; 2. Heat absorbing body; 3. Thermal insulation light transmission window; 4. Heat absorption surface; ; 8. Photovoltaic modules.

detailed description

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

Example 1

Referring to Figures 1 to 4, the arrows show the direction of sunlight, which is a concentrating solar heating power generation system, which includes:

Heliostat 1, used to track the sun and reflect sunlight;

The heat absorber 2 is used to receive the sunlight reflected by the heliostat 1 and convert the solar energy into heat energy for heating;

The photovoltaic module 8 is arranged between the heliostat 1 and the heat absorber 2, and is used to block and absorb the sunlight reflected by the heliostat 1 during non-heating seasons, and convert solar energy into electrical energy.

The heat absorber 2 includes a heating room surrounded by a thermal insulation wall 6, a thermal insulation heat storage box 5 placed in the heating room and equipped with a heat carrier, a thermal insulation transparent window 3, and a heat transfer pipeline 7. The thermal insulation transparent window 3 is set On the thermal insulation wall body 6 facing the heliostat 1 , the heat transfer pipe 7 is connected with the thermal insulation heat storage tank 5 .

A heat absorbing surface 4 is provided on a side of the heat preservation heat storage box 5 facing the heat preservation light transmission window 3 .

In the non-heating season, the photovoltaic module 8 is installed in front of the thermal insulation and light-transmitting window 3 .

In this embodiment, the devices of this system are all installed on the roof of the building.

Example 2

Referring to Figures 5 to 8, the arrows show the direction of sunlight, which is another concentrating solar heating power generation system. The difference between Embodiment 2 and the Embodiment is that the devices of this system are all installed on the ground superior.

In the heating season, the array of heliostats 1 tracks the sun through its own tracking system, and reflects the sunlight to the heat-insulating light-transmitting window 3 installed on the heat-absorbing body 2 and the heat-insulating wall 6, through which the sunlight gathers to the heat-insulating The heat-absorbing surface 4 of the heat storage box 5 is absorbed and converted into heat energy to heat the heat carrier in the heat storage box. When the temperature of the heat carrier reaches the temperature required for heating, the heat is transported to the heating end through the heat transfer pipe 7 to provide heat for heating.

In the non-heating season, a set of photovoltaic modules 8 is installed between the thermal insulation window 3 and the heliostat 1 to block and absorb the sunlight reflected by the heliostat 1, which can prevent the temperature of the heat storage tank from rising. The solar energy can be fully utilized to generate electric energy. The electric energy can be used by oneself or sold online. This system makes full use of the invested equipment such as the heliostat 1, which can be fully utilized throughout the year without causing idle resources.

The above detailed description is a specific description of the feasible embodiment of the utility model. This embodiment is not used to limit the patent scope of the utility model. Any equivalent implementation or change that does not deviate from the utility model should be included in this case within the scope of the patent.

Claims (4)

1. A concentrating solar heating power generation system, characterized in that it comprises: A heliostat (1) for tracking the sun and reflecting sunlight; The heat absorber (2) is used to receive the sunlight reflected by the heliostat (1) and convert the solar energy into heat energy for heating; The photovoltaic module (8), arranged between the heliostat (1) and the heat absorber (2), is used to block and absorb the sunlight reflected by the heliostat (1) during the non-heating season, and transfer solar energy converted into electrical energy. 2. The concentrating solar heating power generation system according to claim 1, characterized in that: the heat absorber includes a heating room surrounded by thermal insulation walls (6), placed in the heating room and equipped with a heat carrier The thermal insulation heat storage box (5), the thermal insulation transparent window (3), the heat transfer pipe (7), the thermal insulation transparent window (3) is arranged on the thermal insulation wall (6) facing the heliostat (1) , the heat transfer pipeline (7) is connected to the heat preservation heat storage box (5). 3. The concentrating solar heating power generation system according to claim 2, characterized in that: the side of the heat preservation heat storage tank (5) facing the heat preservation light transmission window (3) is provided with a heat absorbing surface (4) . 4. The concentrating solar heating power generation system according to claim 1, characterized in that: in the non-heating season, the photovoltaic module (8) is installed in front of the thermal insulation and light-transmitting window (3).