Residence community solar photo-thermal and photoelectric comprehensive utilization system

Abstract

The utility model discloses a residence community solar photo-thermal and photoelectric comprehensive utilization system, which relates to the field of new energy, and comprises a photovoltaic module, the photovoltaic module comprises a photovoltaic power generation film and a photo-thermal utilization refrigerant circulating pipe, the photovoltaic power generation film is used for converting solar energy into electric energy, and the photo-thermal utilization refrigerant circulating pipe is used for circulating the photo-thermal utilization refrigerant circulating pipe. A refrigerant flows through a refrigerant circulating pipe through photo-thermal utilization, so that solar hot water is produced while the photovoltaic module is cooled; the residence community solar photo-thermal and photoelectric comprehensive utilization system comprises a photo-thermal system and a photoelectric system. Compared with the prior art, the utility model has the beneficial effects that solar photo-thermal and solar photoelectric composite utilization is carried out through system combination, the solar comprehensive utilization efficiency of the residential district is greatly improved, and the temperature of the photovoltaic module is effectively controlled to be within the highest efficiency interval through temperature control; and the generating capacity of the photovoltaic system and the service life of the photovoltaic module are improved.

Description

Technical Field

[0001] The utility model relates to the field of new energy, in particular to a solar thermal and photoelectric comprehensive utilization system for a residential area. Background Art

[0002] With the country's requirements for developing high-quality housing and new quality productivity, the requirements for green and low-carbon, energy-saving and consumption-reducing, and renewable energy utilization in high-quality housing are becoming increasingly higher.

[0003] The main renewable energy source used in traditional residential areas is solar water heaters. Although solar water heaters have a high light-to-heat conversion efficiency, for the entire community or a single building, the utilization time of solar water heaters is short and they are highly dispersed, resulting in a low overall utilization efficiency for the entire community or a single building. According to statistics, it generally does not exceed 10%, resulting in a low overall utilization rate of the solar energy system and reduced system economy.

[0004] Temperature has a great impact on the power generation efficiency of photovoltaic modules. As the temperature of photovoltaic modules increases or the local temperature becomes uneven, the power generation efficiency of the entire photovoltaic system is seriously affected. In severe cases, it will damage the photovoltaic modules and shorten the service life of the photovoltaic system, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a solar thermal and photovoltaic comprehensive utilization system for a residential area to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A solar thermal and photovoltaic integrated utilization system for residential areas, comprising a photovoltaic module, the photovoltaic module comprising a photovoltaic power generation film, and a photothermal utilization refrigerant circulation pipe, the photovoltaic power generation film is used to convert solar energy into electrical energy, and a refrigerant flows through the photothermal utilization refrigerant circulation pipe to cool the photovoltaic module while producing solar hot water;

[0008] The solar thermal and photovoltaic comprehensive utilization system for residential quarters includes a photothermal system and a photovoltaic system;

[0009] In the solar thermal system, one end of the photovoltaic module is connected to one end of the household solar water heater through a flow control valve, and the other end of the household solar water heater is connected to one end of the indoor distribution box;

[0010] The optoelectronic system includes:

[0011] Grid-connected power supply mode, used to output the power generated by photovoltaic modules to the grid;

[0012] The off-grid power supply module is used to output the electric energy generated by the photovoltaic modules to the household integrated power storage device.

[0013] As a further solution of the utility model: the other end of the household solar water heater is connected to the indoor distribution box through the indoor distribution line.

[0014] As a further solution of the utility model: in the grid-connected power supply mode, the other end of the photovoltaic module is connected to one end of the string inverter through the string connection line, the other end of the string inverter is connected to one end of the AC distribution cabinet, and the other end of the AC distribution cabinet is connected to the grid;

[0015] As a further solution of the utility model: in the off-grid power supply mode, the other end of the photovoltaic module is connected to one end of the household integrated power storage device, the other end of the household integrated power storage device is connected to one end of the string inverter, and the other end of the string inverter is connected to the other end of the indoor distribution box.

[0016] As a further solution of the utility model: the photothermal utilization refrigerant circulation pipe is on the back of the photovoltaic module, and the photothermal utilization refrigerant circulation pipe is arranged in parallel or in a U-shaped arrangement.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model greatly improves the comprehensive utilization efficiency of solar energy in residential areas by combining the system to utilize solar thermal energy and solar photovoltaic energy, and effectively controls the temperature of photovoltaic modules within the highest efficiency range through temperature control, thereby increasing the power generation of the photovoltaic system and the service life of the photovoltaic modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the grid connection of a solar thermal and photovoltaic comprehensive utilization system in a residential area.

[0019] Figure 2 This is a schematic diagram of an off-grid solar thermal and photovoltaic comprehensive utilization system for a residential area.

[0020] Figure 3 A schematic diagram of a photovoltaic module cross section.

[0021] In the figure: 1-photovoltaic module, 2-string connecting wire, 3-string inverter, 4-AC distribution cabinet, 5-grid, 6-flow control valve, 7-household solar water heater, 8-indoor distribution wire, 9-indoor distribution box, 10-photovoltaic power generation film, 11-photothermal utilization refrigerant circulation pipe, 12-household integrated power storage device. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 and Figure 3 A solar thermal and photovoltaic integrated utilization system for residential areas, comprising a photovoltaic module 1, the photovoltaic module 1 comprising a photovoltaic power generation film 10, and a photothermal utilization refrigerant circulation pipe 11, the photovoltaic power generation film 10 is used to convert solar energy into electrical energy, and a refrigerant flows through the photothermal utilization refrigerant circulation pipe 11 to cool the photovoltaic module 1 while producing solar hot water;

[0024] The solar thermal and photovoltaic comprehensive utilization system for residential quarters includes a photothermal system and a photovoltaic system;

[0025] In the solar thermal system, one end of the photovoltaic module 1 is connected to one end of a household solar water heater 7 through a flow control valve 6, and the other end of the household solar water heater 7 is connected to one end of an indoor distribution box 9;

[0026] The optoelectronic system includes:

[0027] The grid-connected power supply mode is used to output the electric energy generated by the photovoltaic module 1 to the power grid 5;

[0028] The off-grid power supply module is used to output the electric energy generated by the photovoltaic module 1 to the household integrated power storage device 12 .

[0029] In the specific embodiment: see Figure 1 The cooling refrigerant (ethylene glycol solution) is transported to the photovoltaic module 1 through the photothermal utilization refrigerant circulation pipe 11. The photothermal utilization refrigerant circulation pipe 11 on the photovoltaic module 1 is designed on the back of the original photovoltaic module 1. The photothermal utilization refrigerant circulation pipe 11 is arranged in parallel or in a U-shaped shape. The flow of refrigerant in the refrigerant pipe cools the module while producing solar hot water.

[0030] In the solar thermal system, the temperature of the photovoltaic module 1 is controlled by the temperature sensor on the photovoltaic module 1 and the flow control valve 6, ensuring that the temperature of the photovoltaic module 1 is always kept within the highest efficiency range, and the heat recovered by the refrigerant is used as an auxiliary heat source for domestic hot water. It is output to the household solar water heater 7. When the heat supply of the photovoltaic module 1 is not enough to maintain domestic hot water, the indoor distribution line 8 can supply power to maintain the hot water temperature of the household solar water heater 7.

[0031] In this example: See Figure 1 The other end of the household solar water heater 7 is connected to the indoor distribution box 9 through the indoor distribution line 8.

[0032] The connection between the household solar water heater 7 and the indoor distribution line 8 is established through the indoor distribution line 8 .

[0033] In this example: See Figure 1 In the grid-connected power supply mode, the other end of the photovoltaic module 1 is connected to one end of the string inverter 3 through the string connection line 2, the other end of the string inverter 3 is connected to one end of the AC distribution cabinet 4, and the other end of the AC distribution cabinet 4 is connected to the power grid 5.

[0034] The electric energy generated by the photovoltaic module 1 is connected to the community low-voltage power grid 5 through the string inverter 3 and the AC distribution cabinet 4, and economic benefits are obtained through electricity sales, and then distributed to each household.

[0035] In this example: See Figure 2 In the off-grid power supply mode, the other end of the photovoltaic component 1 is connected to one end of the household integrated power storage device 12, the other end of the household integrated power storage device 12 is connected to one end of the string inverter 3, and the other end of the string inverter 3 is connected to the other end of the indoor distribution box 9.

[0036] The electric energy generated by the photovoltaic module 1 is stored in the household integrated power storage device 12 to provide solar renewable green electricity for use by each household, and can be supplied to the indoor distribution box 9 for use.

[0037] In this example: See Figure 1 and Figure 3 The photothermal utilization refrigerant circulation pipe 11 is on the back of the photovoltaic module 1, and the photothermal utilization refrigerant circulation pipe 11 is arranged in parallel or in a U-shaped pattern.

[0038] The heat utilization refrigerant circulation pipe is arranged in parallel or in a U-shaped pattern to ensure a larger contact area with the photovoltaic module 1 and a good cooling effect.

[0039] The working principle of the utility model is: in the solar thermal system, the temperature of the photovoltaic module 1 is controlled by the temperature sensor on the photovoltaic module 1 and the flow control valve 6 (when the temperature of the photovoltaic module 1 is high, the temperature sensor detects the signal, the output voltage is too large, and then the flow rate through the flow control valve 6 is controlled to increase, otherwise, the flow rate through the flow control valve 6 is controlled to decrease), so as to ensure that the temperature of the photovoltaic module 1 is always kept within the highest efficiency range, and the heat recovered by the refrigerant is used as an auxiliary heat source for domestic hot water. It is output to the household solar water heater 7. When the heat supply of the photovoltaic module 1 is not enough to maintain domestic hot water, the indoor distribution line 8 can supply power to maintain the hot water temperature of the household solar water heater 7;

[0040] In the grid-connected power supply mode of the photovoltaic system, the electric energy generated by the photovoltaic module 1 is connected to the community low-voltage power grid 5 through the string inverter 3 and the AC distribution cabinet 4, and economic benefits are obtained through electricity sales, and then distributed to each household.

[0041] In the off-grid power supply mode of the photovoltaic system, the electric energy generated by the photovoltaic module 1 is stored in the household integrated power storage device 12 to store the solar renewable green electricity for use by each household.

[0042] The utility model realizes the combined utilization of solar thermal energy and solar photovoltaic energy through component innovation and system combination, greatly improving the comprehensive utilization efficiency of solar energy in residential areas, and effectively controlling the temperature of photovoltaic power generation components within the highest efficiency range through temperature control, thereby improving the power generation of the photovoltaic system and the service life of the photovoltaic components 1.

[0043] The appearance and system architecture of the utility model can be adjusted according to the size of the system and the usage scenario, but the system principle remains unchanged.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solar thermal and photovoltaic comprehensive utilization system for residential areas, characterized in that: The solar thermal and photovoltaic integrated utilization system of the residential area includes a photovoltaic module, which includes a photovoltaic power generation film and a photothermal utilization refrigerant circulation pipe. The photovoltaic power generation film is used to convert solar energy into electrical energy. The refrigerant flows through the photothermal utilization refrigerant circulation pipe to cool the photovoltaic module while producing solar hot water. The solar thermal and photovoltaic comprehensive utilization system for residential quarters includes a photothermal system and a photovoltaic system; In the solar thermal system, one end of the photovoltaic module is connected to one end of the household solar water heater through a flow control valve, and the other end of the household solar water heater is connected to one end of the indoor distribution box; The optoelectronic system includes: Grid-connected power supply mode, used to output the power generated by photovoltaic modules to the grid; The off-grid power supply module is used to output the electric energy generated by the photovoltaic modules to the household integrated power storage device.

2. The solar thermal and photovoltaic comprehensive utilization system for residential areas according to claim 1 is characterized in that: The other end of the household solar water heater is connected to the indoor distribution box through the indoor distribution line.

3. The solar thermal and photovoltaic comprehensive utilization system for residential areas according to claim 1 is characterized in that: In the grid-connected power supply mode, the other end of the PV module is connected to one end of the string inverter through a string connection line, the other end of the string inverter is connected to one end of the AC distribution cabinet, and the other end of the AC distribution cabinet is connected to the grid.

4. The solar thermal and photovoltaic comprehensive utilization system for residential areas according to claim 1 is characterized in that: In the off-grid power supply mode, the other end of the photovoltaic module is connected to one end of the household integrated power storage device, the other end of the household integrated power storage device is connected to one end of the string inverter, and the other end of the string inverter is connected to the other end of the indoor distribution box.

5. The solar thermal and photovoltaic comprehensive utilization system for residential areas according to any one of claims 1 to 4, characterized in that: The photothermal utilization refrigerant circulation pipe is on the back of the photovoltaic module, and the photothermal utilization refrigerant circulation pipe is arranged in parallel or in a U-shaped arrangement.

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