Light storage and charging collaborative mutual aid system

Abstract

The invention relates to the technical field of photovoltaic power generation, and discloses a light storage and charging cooperative mutual aid system, which is provided with a storage battery container and a charging and battery swapping station, and comprises an air compressor for compressing air to obtain high-pressure air and outputting the high-pressure air; and the air storage device is connected with the air compressor, the storage battery container and the charging and battery swapping station based on pipeline passages and used for cooling the storage battery container and the charging and battery swapping station through pressure energy of high-pressure air in the air storage device. The problem that energy storage containers in the prior art are high in cooling power consumption is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic storage and charging synergistic mutual assistance system. Background Art

[0002] Photovoltaic storage and charging coupling operation is a common comprehensive utilization method recently and has been widely used. Batteries are a relatively mature energy storage technology, but batteries with large capacity will generate a lot of heat during the charging and discharging process, posing a great safety hazard. For commercial or residential areas, the safety problem is particularly serious.

[0003] In the prior art, energy storage containers are generally equipped with air conditioners to lower the temperature inside the container. However, this consumes a lot of power, which affects the overall efficiency of the system. Summary of the invention

[0004] In view of this, the present invention provides a photovoltaic storage and charging cooperative system to solve the problem of high power consumption in cooling the energy storage container in the prior art.

[0005] In a first aspect, the present invention provides a photovoltaic storage and charging cooperative mutual assistance system, the system is provided with a battery container and a charging and swapping station, and the system includes:

[0006] An air compressor is used to compress air to obtain high-pressure air and output the high-pressure air;

[0007] The gas storage device is connected to the air compressor, the battery container and the charging and swapping station based on a pipeline passage, and is used to cool the battery container and the charging and swapping station respectively through the pressure energy of the high-pressure air in the gas storage device.

[0008] The photovoltaic storage and charging cooperative mutual assistance system provided by the present invention compresses air through an air compressor to obtain high-pressure gas containing pressure energy, transmits the high-pressure gas to a gas storage device for storage, and transmits the high-pressure gas to the battery container and the charging and swapping station respectively when cooling the battery container and the charging and swapping station, and cools the battery container and the charging and swapping station respectively by the pressure energy contained in the high-pressure gas. Compared with the traditional method of cooling through air conditioning, it saves power consumption to a great extent, thereby improving the overall efficiency of the system.

[0009] In an optional embodiment, the battery container is provided with a first air inlet and a first air outlet, and the charging and swapping station is provided with a second air inlet and a second air outlet;

[0010] The first air outlet of the air storage device is connected to the first air inlet, and the second air outlet of the air storage device is connected to the second air inlet;

[0011] Among them, the high-pressure air of the battery container enters the battery container through the first air inlet for expansion, and is discharged through the first air outlet after the battery container is cooled down. The high-pressure air of the battery container enters the charging and swapping station through the second air inlet for expansion, and is discharged through the first air outlet after the charging and swapping station is cooled down.

[0012] In an optional embodiment, the system includes:

[0013] a first valve, wherein a first end of the first valve is connected to a first air outlet of the air storage device, and a second end of the first valve is connected to the first air inlet, and is used to control air intake of the battery container;

[0014] The second valve, the first end of the second valve is connected to the second air outlet of the air storage device, and the second end of the second valve is connected to the second air inlet, and is used to control the air intake of the charging and swapping station.

[0015] In an optional embodiment, the battery container is provided with a coolant refrigeration device and a coolant circulation pump, wherein the coolant circulation pump provides power to the coolant in the coolant refrigeration device to drive the coolant refrigeration device to cool the battery container;

[0016] The system includes:

[0017] The first pneumatic device is connected to the third air outlet of the air storage device and the coolant circulation pump respectively, and is used to convert the pressure energy of the high-pressure air in the air storage device into kinetic energy and output it to the coolant circulation pump.

[0018] In an optional embodiment, the charging and swapping station is provided with a conveyor track and a transmission control device, wherein the transmission control device is used to drive the track to replace the battery;

[0019] The system includes:

[0020] The second pneumatic device is connected to the fourth air outlet of the air storage device and the transmission control device respectively, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and then outputting it to the transmission control device.

[0021] In an optional embodiment, the photovoltaic assembly is connected to an air compressor, and the photovoltaic assembly supplies power to the air compressor; and / or;

[0022] The power grid is connected to the air compressor, and the power grid supplies power to the air compressor.

[0023] In an optional embodiment, the system includes:

[0024] The wind generator is connected to the fifth air outlet of the air storage device and the air compressor respectively, wherein the high-pressure air in the air storage device drives the wind generator to rotate and generate electricity, which is then provided to the air compressor.

[0025] In an optional implementation, the sixth air outlet of the air storage device is connected to the photovoltaic assembly, and the high-pressure air of the air storage device is used to purge the photovoltaic assembly.

[0026] In an optional embodiment, the system includes:

[0027] A third valve, wherein a first end of the third valve is connected to the sixth gas outlet of the gas storage device, and a second end of the third valve is connected to the photovoltaic component, is used to control the purge of the photovoltaic component.

[0028] In an optional embodiment, the photovoltaic assembly is provided with a high-pressure plunger pump and a spray device, wherein the high-pressure plunger pump is used to drive the spray device to flush the photovoltaic assembly;

[0029] The system includes:

[0030] The third pneumatic device is respectively connected to the seventh air outlet of the air storage device and the high-pressure plunger pump, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and then outputting it to the high-pressure plunger pump.

[0031] In an optional embodiment, the system includes:

[0032] an air expander, the air expander being connected to the eighth air outlet of the air storage device and being used for converting the pressure energy of the high-pressure air in the air storage device into electrical energy for output;

[0033] The air expander is connected to the charging and swapping station to transmit the converted electric energy to the charging and swapping station; and / or,

[0034] The air expander is connected to a power grid for transmitting the converted electric energy to the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 is a structural diagram of a photovoltaic storage and charging cooperative mutual assistance system according to an embodiment of the present invention;

[0037] Figure 2 is a detailed structural diagram of a photovoltaic storage and charging cooperative mutual assistance system according to an embodiment of the present invention;

[0038] Figure 3 is a detailed structural diagram of another photovoltaic storage and charging cooperative mutual assistance system according to an embodiment of the present invention;

[0039] Figure 4 is a detailed structural diagram of another photovoltaic storage and charging cooperative mutual assistance system according to an embodiment of the present invention;

[0040] Figure 5 It is a detailed structural diagram of another photovoltaic storage and charging cooperative mutual assistance system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] In this regard, this embodiment provides a photovoltaic storage and charging cooperative mutual assistance system, such as Figure 1 As shown, the system is provided with a battery container and a charging and swapping station, and the system includes:

[0046] The air compressor 10 is used to compress air to obtain high-pressure air and output the high-pressure air;

[0047] Specifically, the electricity generated by the photovoltaic module is directly used in the charging and swapping station, and can also be stored in the form of chemical energy through a battery container. The battery container is connected to the power grid and the charging and swapping station to realize the mutual transmission of electricity. The air compressor 10 compresses the surrounding air to obtain high-pressure air, and transmits the air compressor 10 to the gas storage device 20 through a pipeline. It is worth noting that the high-pressure air is a gas. Optionally, the air compressor 10 can specifically be any device for compressing air. The electrical energy required for the operation of the air compressor 10 can come from any power supply device.

[0048] The gas storage device 20 is connected to the air compressor 10, the battery container and the charging and swapping station based on a pipeline passage, and is used to cool the battery container and the charging and swapping station respectively through the pressure energy of the high-pressure air in the gas storage device.

[0049] Specifically, the gas storage device 20 is used to store high-pressure gas, and the gas storage device 20 transmits the high-pressure gas to the battery container and the charging and swapping station through the output pipeline, so as to cool the battery container and the charging and swapping station. Specifically, the pressure energy contained in the high-pressure gas is converted into energy to cool the battery container and the charging and swapping station.

[0050] The photovoltaic storage and charging cooperative mutual assistance system provided by the present invention compresses air through an air compressor 10 to obtain high-pressure gas containing pressure energy, transmits the high-pressure gas to the gas storage device 20 for storage, and transmits the high-pressure gas to the battery container and the charging and swapping station respectively when cooling the battery container and the charging and swapping station, and cools the battery container and the charging and swapping station respectively by the pressure energy contained in the high-pressure gas. Compared with the traditional method of cooling through air conditioning, it saves power consumption to a great extent, thereby improving the overall efficiency of the system.

[0051] In some optional embodiments, such as Figure 2 As shown, the battery container is provided with a first air inlet and a first air outlet, and the charging and swapping station is provided with a second air inlet and a second air outlet;

[0052] The first air outlet of the air storage device 20 is connected to the first air inlet, and the second air outlet of the air storage device 20 is connected to the second air inlet;

[0053] Among them, the high-pressure air of the battery container enters the battery container through the first air inlet for expansion, and is discharged through the first air outlet after the battery container is cooled down. The high-pressure air of the battery container enters the charging and swapping station through the second air inlet for expansion, and is discharged through the first air outlet after the charging and swapping station is cooled down.

[0054] Specifically, the high-pressure air is cooled while expanding, and the high-pressure air of the air storage device 20 is directly released to the battery container and the charging and swapping station through the first air inlet. The heat absorption property of compressed air during expansion is utilized to cool the battery container and the charging and swapping station. There is no need for practical air conditioning for cooling, which greatly reduces power consumption.

[0055] In some optional embodiments, such as Figure 3 As shown, the system includes:

[0056] A first valve K1, wherein a first end of the first valve K1 is connected to a first air outlet of the air storage device 20, and a second end of the first valve K1 is connected to a first air inlet, and is used to control air intake of the battery container;

[0057] Specifically, the control end of the first valve K1 is connected to the control device, which is used to monitor the real-time temperature of the battery container. When it is detected that the real-time temperature of the battery container is greater than the preset battery container temperature, the control device outputs a first opening signal to the first valve K1. At this time, after the first valve K1 is opened, the high pressure in the gas storage device 20 is controlled and released to the battery container. Optionally, the first valve K1 can be a pneumatic valve or an electric valve.

[0058] The second valve K2, the first end of the second valve K2 is connected to the second air outlet of the air storage device 20, and the second end of the second valve K2 is connected to the second air inlet, and is used to control the air intake of the charging and swapping station.

[0059] Specifically, the control end of the second valve K2 is connected to the control device, which is used to monitor the real-time temperature of the charging and swapping station. When it is detected that the real-time temperature of the charging and swapping station is greater than the preset charging and swapping station temperature, the control device outputs a second opening signal to the second valve K2. At this time, after the second valve K2 is opened, the high pressure in the gas storage device 20 is controlled and released to the charging and swapping station. Optionally, the second valve K2 can be a pneumatic valve or an electric valve.

[0060] In some optional embodiments, such as Figure 4 As shown, the battery container is provided with a coolant refrigeration device and a coolant circulation pump, wherein the coolant circulation pump provides power to the coolant in the coolant refrigeration device to drive the coolant refrigeration device to cool the battery container;

[0061] The system includes:

[0062] The first pneumatic device M1 is connected to the third air outlet of the air storage device 20 and the coolant circulation pump respectively, and is used to convert the pressure energy of the high-pressure air in the air storage device into kinetic energy and output it to the coolant circulation pump.

[0063] Specifically, the coolant circulation device is a pipeline provided inside the battery container, and the coolant circulates in the pipeline to achieve the purpose of cooling. The first pneumatic device M1 converts the pressure energy of the high-pressure gas into kinetic energy, and the converted kinetic energy is used to drive the coolant circulation pump to provide circulation power for the coolant in the coolant refrigeration device. Optionally, the first pneumatic device M1 can be a pressure energy and kinetic energy energy conversion device. The high-pressure gas causes the first pneumatic device M1 to operate without converting it into electrical energy, thereby saving electrical energy to drive the coolant refrigeration device of the battery container and greatly reducing power consumption.

[0064] In some optional embodiments, such as Figure 5 As shown, the charging and swapping station is provided with a transmission crawler and a transmission control device, wherein the transmission control device is used to drive the crawler to replace the battery;

[0065] The system includes:

[0066] The second pneumatic device M2 is connected to the fourth air outlet of the air storage device and the transmission control device respectively, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and then outputting it to the transmission control device.

[0067] Specifically, the conveyor belt is used to provide a battery swapping service, that is, the replaced battery is transported to the charging station through the conveyor belt, and the full battery is transported to the battery storage place in the charging and swapping station through the conveyor belt. The full battery can be directly provided to the electric vehicle, and the power of the conveyor belt is provided by the transmission control device driven by high-pressure air. The second pneumatic device M2 converts the pressure energy of the high-pressure gas into kinetic energy, and the converted kinetic energy is used to drive the transmission control device. Optionally, the second pneumatic device M2 can specifically be an energy conversion device for pressure energy and kinetic energy. The high-pressure gas causes the second pneumatic device M2 to operate without converting it into electrical energy, thereby saving the electrical energy of the transmission control device and greatly reducing power consumption.

[0068] It should be noted that, on the basis of cooling the high-pressure air, the high-pressure air stored in the air storage device 20 can be used in a charging and swapping station.

[0069] In some optional embodiments, the photovoltaic assembly is connected to the air compressor 10, and the photovoltaic assembly supplies power to the air compressor 10; and / or;

[0070] The power grid is connected to the air compressor 10 , and the power grid supplies power to the air compressor 10 .

[0071] Specifically, the electric energy of the air compressor 10 comes from the electricity generated by the photovoltaic module, or can come from the electric energy of the power grid. Specifically, the valley electricity of the power grid can be used to drive the air compressor 10, thereby reducing power consumption.

[0072] In addition, the heat generated during the air compression process can be used to produce hot water through a heat exchanger and supplied to surrounding users, thereby improving the utilization rate of thermal energy.

[0073] In some optional embodiments, such as Figure 5 As shown, the system includes:

[0074] The wind generator 30 is connected to the fourth air outlet of the air storage device 20 and the air compressor 10 respectively, wherein the high-pressure air in the air storage device 20 drives the wind generator 30 to rotate and generate electricity, which is then provided to the air compressor 10.

[0075] Specifically, the wind turbine 30 receives the high-pressure air sent by the air storage device 20, converts the wind energy into electrical energy and sends it to the preset electrical storage device for storage, and the electrical energy stored in the preset electrical storage device is provided to the air compressor 10 for operation. Alternatively, when the air compressor 10 needs to operate, the wind turbine 30 converts the high-pressure air into electrical energy and directly provides it to the air compressor 10 for use.

[0076] In some optional embodiments, the fifth air outlet of the air storage device 20 is connected to the photovoltaic assembly, and the high-pressure air of the air storage device 20 is used to purge the photovoltaic assembly.

[0077] Specifically, the high-pressure air of the air storage device 20 is directly used to blow away the dust on the photovoltaic components. Therefore, there is no need to set up an additional blowing device, saving the electricity for cleaning the photovoltaic components.

[0078] In some optional embodiments, such as Figure 5 As shown, the system includes:

[0079] The third valve K3, the first end of the third valve K3 is connected to the sixth gas outlet of the gas storage device 20, and the second end of the third valve K3 is connected to the photovoltaic component, and is used to control the purge of the photovoltaic component.

[0080] Specifically, the control end of the third valve K3 is connected to the control device, and the control device can be controlled by a program or by a user. When controlled by a program, the third valve K3 is opened regularly to purge the photovoltaic module.

[0081] In some optional embodiments, such as Figure 5 As shown, the photovoltaic assembly is provided with a high-pressure plunger pump and a spray device, wherein the high-pressure plunger pump is used to drive the spray device to flush the photovoltaic assembly;

[0082] The system includes:

[0083] The third pneumatic device M3 is connected to the seventh air outlet of the air storage device 20 and the high-pressure plunger pump respectively, and is used to convert the pressure energy of the high-pressure air in the air storage device 20 into kinetic energy and output it to the high-pressure plunger pump.

[0084] Specifically, the spray device is used to spray water to the photovoltaic module, and the third pneumatic device M3 converts the pressure energy of the high-pressure gas into kinetic energy, and the converted kinetic energy is used to drive the high-pressure plunger pump. Optionally, the third pneumatic device M3 can be a pressure energy and kinetic energy energy conversion device, and the high-pressure gas causes the third pneumatic device M3 to operate without converting it into electrical energy, thereby saving electrical energy for flushing the photovoltaic module and greatly reducing power consumption.

[0085] In some optional embodiments, such as Figure 5 As shown, the system includes:

[0086] An air expander 40, the air expander 40 is connected to the eighth air outlet of the air storage device 20, and is used to convert the pressure energy of the high-pressure air in the air storage device 20 into electrical energy for output;

[0087] The air expander 40 is connected to the charging and swapping station to transmit the converted electric energy to the charging and swapping station; and / or,

[0088] The air expander 40 is connected to a power grid for transmitting the converted electric energy to the power grid.

[0089] Specifically, the high-pressure air stored in the gas storage device 20 can convert the pressure energy in the air into work through the air expander 40 to generate electricity, and the generated electricity is stored in the charging and swapping station or the power grid, thereby improving the utilization rate of the high-pressure air in the gas storage device 20. Furthermore, a dynamic demand optimization strategy for the power grid and the power market is provided.

[0090] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A photovoltaic storage and charging cooperative system, characterized in that: The system is provided with a battery container and a charging and swapping station, and the system comprises: An air compressor, used for compressing air to obtain high-pressure air and outputting the high-pressure air; An air storage device is connected to the air compressor, the battery container and the charging and swapping station based on a pipeline passage, and is used to cool the battery container and the charging and swapping station respectively by the pressure energy of the high-pressure air in the air storage device.

2. The system according to claim 1, characterized in that The battery container is provided with a first air inlet and a first air outlet, and the charging and swapping station is provided with a second air inlet and a second air outlet; The first air outlet of the air storage device is connected to the first air inlet, and the second air outlet of the air storage device is connected to the second air inlet; Among them, the high-pressure air of the battery container enters the battery container through the first air inlet to expand, and is discharged through the first air outlet after the battery container is cooled down; and the high-pressure air of the battery container enters the charging and swapping station through the second air inlet to expand, and is discharged through the first air outlet after the charging and swapping station is cooled down.

3. The system according to claim 2, characterized in that The system comprises: a first valve, wherein a first end of the first valve is connected to a first air outlet of the air storage device, and a second end of the first valve is connected to the first air inlet, and is used to control air intake of the battery container; A second valve, wherein a first end of the second valve is connected to the second air outlet of the air storage device, and a second end of the second valve is connected to the second air inlet, and is used to control the air intake of the charging and swapping station.

4. The system according to claim 1, characterized in that The battery container is provided with a coolant refrigeration device and a coolant circulation pump, wherein the coolant circulation pump provides power to the coolant in the coolant refrigeration device to drive the coolant refrigeration device to cool the battery container; The system comprises: The first pneumatic device is connected to the third air outlet of the air storage device and the coolant circulation pump respectively, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and outputting it to the coolant circulation pump.

5. The system according to claim 1, characterized in that The charging and swapping station is provided with a transmission crawler and a transmission control device, wherein the transmission control device is used to drive the crawler to replace the battery; The system comprises: A second pneumatic device, wherein the second pneumatic device is respectively connected to the fourth air outlet of the air storage device and the transmission control device, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and then outputting it to the transmission control device.

6. The system according to claim 1, characterized in that The photovoltaic assembly is connected to the air compressor, and the photovoltaic assembly supplies power to the air compressor; and / or; The power grid is connected to the air compressor, and the power grid supplies power to the air compressor.

7. The system according to claim 1, characterized in that The system comprises: A wind generator is connected to the fifth air outlet of the air storage device and the air compressor respectively, wherein the high-pressure air in the air storage device drives the wind generator to rotate and generate electricity, which is then provided to the air compressor.

8. The system according to claim 1, characterized in that The sixth air outlet of the air storage device is connected to the photovoltaic assembly, and the high-pressure air of the air storage device is used to purge the photovoltaic assembly.

9. The system according to claim 8, characterized in that The system comprises: A third valve, wherein a first end of the third valve is connected to the sixth air outlet of the air storage device, and a second end of the third valve is connected to the photovoltaic component, and is used to control the purge of the photovoltaic component.

10. The system according to claim 1, characterized in that The photovoltaic assembly is provided with a high-pressure plunger pump and a spray device, wherein the high-pressure plunger pump is used to drive the spray device to flush the photovoltaic assembly; The system comprises: A third pneumatic device, wherein the third pneumatic device is respectively connected to the seventh air outlet of the air storage device and the high-pressure plunger pump, and is used for converting the pressure energy of the high-pressure air in the air storage device into kinetic energy and outputting it to the high-pressure plunger pump.

11. The system according to claim 1, characterized in that The system comprises: an air expander, the air expander being connected to the eighth air outlet of the air storage device and being used for converting the pressure energy of the high-pressure air in the air storage device into electrical energy for output; The air expander is connected to the charging and swapping station to transmit the converted electric energy to the charging and swapping station; and / or, The air expander is connected to a power grid and is used to transmit the converted electric energy to the power grid.

Images