Water body anti-freezing device and anti-freezing method based on solar energy and air energy storage

Abstract

The invention relates to a water body anti-freezing device and method based on solar energy and air energy storage. The water body anti-freezing device based on solar energy and air energy storage comprises an air storage, a compressor, a generator set, an air pump system, a switching valve, a pressure sensor, a temperature sensor and a controller, the air storage is used for storing compressed air; the compressor is used for compressing air to a high-pressure state and sending the air into the air storage for storage; the generator set is used for being driven to generate power when the compressed air is released and is connected with a power grid. According to the invention, a pressure blowing method anti-freezing technology and an air energy storage technology are organically combined, a large amount of compressed air is stored by utilizing the air storage, the compressed air is converted by utilizing surplus electric energy of a power grid, and when the electric energy is needed, the stored compressed air is released to generate power; meanwhile, the stored compressed air can provide stable air source supply for a pressure blowing method, and the water body anti-freezing device can also provide economic value in the aspect of energy storage.

Description

Technical Field

[0001] The present invention relates to the field of anti-icing technology, and in particular to a water body anti-freezing device and an anti-freezing method based on solar energy and air energy storage. Background Art

[0002] Water bodies in cold regions are prone to freezing, which can have adverse effects. For example, ice in reservoirs and lakes can affect water storage and flow. Severe freezing of river surfaces can disrupt navigation and water flow. Ice in fisheries and ecological reserves can have significant impacts on aquatic life, making anti-freezing measures crucial.

[0003] Existing methods for preventing water bodies from freezing generally include mechanical de-icing, spraying salt water or chemicals, and underwater pressure blowing. Mechanical de-icing equipment is complex and has high maintenance costs, while chemical anti-icing methods pollute the environment to a certain extent. While underwater pressure blowing avoids the shortcomings of the above methods, due to the generally remote location of water bodies, it lacks a continuous and stable air supply. In the prior art, mobile air supply systems consisting of mobile diesel generators, compressed air pumps, and the like are used for air supply. When air is needed, on-site power generation provides electricity to drive the compressed air pump, which then injects the generated compressed air into the water. This method is limited in terms of scale, and requires redeployment every year when it is needed, which is quite cumbersome. If a stable air source is constructed to prevent water bodies from freezing, it is obviously not economical and easily leads to waste of resources. Summary of the Invention

[0004] Based on this, it is necessary to provide a water antifreeze device and antifreeze method based on solar energy and air energy storage, as the existing bottom water pressure blowing method lacks a continuous and stable air source supply. If a mobile air supply system is used for air source supply, the gas production is limited and needs to be redeployed every year. If a stable air source is built to prevent water from freezing, its economic efficiency is not high and it is easy to cause waste of resources.

[0005] In a first aspect, the present invention provides a water antifreeze device based on solar energy and air energy storage, which includes: a gas storage reservoir, a compressor, a generator set, an air pump system, a switching valve, a pressure sensor, a temperature sensor and a controller.

[0006] Gas storage tanks are used to store compressed air.

[0007] The compressor is used to compress the air to a high-pressure state and send it to the gas storage tank for storage.

[0008] The generator set is used to generate electricity when driven by the released compressed air and is connected to the power grid.

[0009] The air pump system includes a pipeline and a bubble generator; the pipeline is used to connect the air storage reservoir and the bubble generator, and introduce compressed air into the bubble generator; the bubble generator is set in the water body, and is used to spray compressed air into the water body to generate bubbles.

[0010] The switching valve is used to control the on / off state of the gas storage outlet and adjust the connection between the gas storage and the generator set or the gas storage and the air pump system.

[0011] The pressure sensor is used to detect the internal pressure of the gas storage reservoir and generate a pressure signal.

[0012] The temperature sensor is used to detect the temperature of the water body where the air pump system is located and generate a temperature signal.

[0013] and the controller to:

[0014] (1) Used to detect the load intensity of the power grid and receive pressure signals and temperature signals; when the load intensity is lower than the lower limit of the intensity threshold interval, control the compressor to work through the power supply of the power grid until the pressure signal is greater than the upper limit of the pressure threshold interval one or the load intensity is higher than the upper limit of the intensity threshold interval.

[0015] (2) It is also used to control the switching valve to adjust the connection between the gas storage reservoir and the generator set to generate electricity when the load intensity is higher than the upper limit of the intensity threshold range.

[0016] (3) It is also used to control the switching valve to adjust the connection between the gas storage reservoir and the air pump system to generate bubbles in the water body when the temperature signal is lower than the temperature threshold.

[0017] (4) It is also used to control the air pump system to generate bubbles and shut down the generator set when the load intensity is higher than the upper limit of the intensity threshold range and the temperature signal is lower than the temperature threshold.

[0018] In a second aspect, the present invention further proposes a water antifreeze method based on solar energy and air energy storage, which is applied to the water antifreeze device based on solar energy and air energy storage in the first aspect. The water antifreeze method based on air energy storage comprises the following steps:

[0019] S1. Obtain the load intensity of the power grid, the pressure signal of the gas storage reservoir, and the temperature signal of the water body.

[0020] S2. If the load intensity is lower than the lower limit of the intensity threshold interval, the compressor is controlled to operate via the power grid until the pressure signal is greater than the upper limit of the pressure threshold interval 1 or the load intensity is higher than the upper limit of the intensity threshold interval.

[0021] If the load intensity is higher than the upper limit of the intensity threshold range, the switching valve is controlled to adjust the connection between the gas storage reservoir and the generator set to generate electricity.

[0022] If the temperature signal is lower than the temperature threshold, the switching valve is controlled to adjust the connection between the gas storage reservoir and the air pump system to generate bubbles in the water body.

[0023] If the temperature signal is lower than the temperature threshold and the pressure signal is lower than the lower limit of pressure threshold interval two, the controller controls the compressor to work until the temperature signal is higher than or equal to the temperature threshold; wherein the value of pressure threshold interval two is smaller than pressure threshold interval one.

[0024] If the load intensity is higher than the upper limit of the intensity threshold range and the temperature signal is lower than the temperature threshold, the air pump system is controlled to generate bubbles and shut down the generator set.

[0025] If the temperature signal is higher than or equal to the temperature threshold, the air pump system is controlled to shut down.

[0026] In a third aspect, the present invention further proposes a software program product, which includes program instructions. When the software program product is run on an electronic device, the electronic device executes the steps of the water antifreeze method based on solar energy and air energy storage as in the second aspect.

[0027] The beneficial effects of the present invention are:

[0028] The present invention organically combines the compressed air antifreeze method with air energy storage technology, using an air storage reservoir to store a large amount of compressed air. The compressed air is converted using excess electricity from the power grid. When electricity is needed, the stored compressed air is released to generate electricity. At the same time, the stored compressed air can provide a stable air source supply for the compressed air antifreeze method, and the water antifreeze device can also provide economic value in terms of energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of a water antifreeze device based on solar energy and air energy storage in Example 1;

[0031] Figure 2 This is a flow chart of the water antifreeze method based on air energy storage in Example 5. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 a limitation on this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Example 1

[0037] Please refer to Figure 1 This embodiment provides a water antifreeze device based on solar energy and air energy storage, which includes: a gas storage reservoir, a compressor, a generator set, an air pump system, a switching valve, a pressure sensor, a temperature sensor and a controller.

[0038] The gas storage facility can be located in any one or more of an underground cave, mine, salt well, tunnel, or dedicated gas tank to meet the required air storage volume. A commercially available compressor with sufficient power is used to compress the air to a high pressure and deliver it to the gas storage facility for storage. The accompanying generator set, driven by the release of compressed air, converts mechanical energy into electrical energy based on the principle of electromagnetic induction, generating electricity. The generator set is connected to the mains electricity grid.

[0039] The air pump system includes a pipeline and a bubble generator. The pipeline is used to connect the air storage reservoir and the bubble generator, and to introduce compressed air into the bubble generator. The bubble generator is set in the water body, and is used to spray compressed air into the water body to generate bubbles. The bubble generator generally includes multiple air holes or nozzles. Multiple nozzles are distributed at the bottom of the water body. When the bubble generator releases compressed air into the water, a large amount of bubble flow is formed. When the bubbles rise, they disturb the water surface and form convection in the water, increasing the fluidity of the water body, helping to keep the water surface temperature not below the freezing point, and preventing the formation of ice. As for parameters such as the efficiency of bubble release and the flow rate of compressed gas, they need to be specifically designed according to factors such as the depth of the water body and the environment, so I will not go into details here.

[0040] The switching valve controls the on / off state of the gas storage outlet and regulates the connection between the gas storage and the generator set, or between the gas storage and the air pump system. A commercially available remote-controlled valve can be used and is controlled by a controller. The pressure sensor detects the internal pressure of the gas storage and generates a pressure signal P. The temperature sensor detects the temperature of the water in which the air pump system resides and generates a temperature signal T.

[0041] The controller is used to detect the load intensity Q of the power grid and receive pressure signals P and temperature signals T. Several pre-set parameters are also preset within the controller. These parameters include: intensity threshold interval QTH, pressure threshold interval 1 PTH1, pressure threshold interval 2 PTH2, and temperature threshold TTH.

[0042] The intensity threshold QTH is set based on the intensity of the grid load. When it exceeds the upper limit of QTH, it indicates that the grid load intensity is too high and needs to be reduced. Conversely, it indicates that the grid load intensity is too low, indicating energy waste.

[0043] The pressure threshold interval, PTH1, is set based on the pressure range when the air storage is nearing full capacity. When the pressure exceeds the upper limit of PTH1, it indicates that the air storage is nearly full. Otherwise, it indicates that the air storage is not full and can continue to store air.

[0044] Pressure threshold interval 2, PTH2, is set based on the lower limit of the compressed air volume within the gas storage. If the value falls below the lower limit of PTH2, it indicates that the air capacity within the gas storage is insufficient for use for a period of time. Conversely, if the value falls below the lower limit, it indicates that there is sufficient air within the gas storage for use for a period of time. Therefore, the value of pressure threshold interval 2, PTH2, is generally smaller than that of pressure threshold interval 1, PTH1.

[0045] The temperature threshold TTH is set based on the critical point at which water freezes. When it is higher than TTH, it indicates that the water is likely to freeze. Otherwise, the surface water will not freeze.

[0046] The controller determines the received Q, P, and T against the set parameters to control the operation of the water body anti-freezing device. Specifically, the controller has the following functions:

[0047] (1) When Q is lower than the lower limit of QTH, the controller controls the compressor to operate by power supply from the power grid. Subsequently, it is then determined whether P is higher than the upper limit of PTH1 or whether Q is higher than the upper limit of QTH (for the sake of simplicity in description, the subsequent occurrences of higher than the upper limit of QTH, higher than the upper limit of PTH1, and higher than the upper limit of PTH2 are abbreviated as >QTH, >PTH1, and >PTH2 respectively. Similarly, the lower limit of <QTH, the lower limit of <PTH1, and the lower limit of <PTH2 are abbreviated as <QTH, <PTH1, and <PTH2 respectively). If P > PTH1 or Q > QTH, the controller controls the compressor to stop operating; if P < PTH1 and Q < QTH, the compressor continues to operate.

[0048] (2) When Q > QTH, the controller controls the switching valve to adjust the connection between the gas storage and the generator set for power generation, and the generated electricity is input into the power grid for use to reduce the load intensity of the power grid.

[0049] (3) When T < TTH, the controller controls the switching valve to adjust the connection between the gas storage and the air pump system to generate bubbles in the water body to prevent the water body from freezing. Conversely, the controller controls the air pump system to close.

[0050] (4) When Q > QTH and T < TTH, the controller controls the air pump system to generate bubbles and shuts down the generator set. At this time, the working priority of the air pump system is higher than that of the generator, so that compressed air is preferentially supplied to the air pump system to prevent the water body from freezing. If Q > QTH and T > TTH, there is no need for water body anti-freezing at this time, and the controller controls the generator set to generate electricity and supply it to the power grid.

[0051] (5) When T < TTH and P < PTH2, the controller controls the compressor to operate until T ≥ TTH, aiming to prevent the air in the gas storage from being exhausted, so that the air pump system stops working due to lack of air source.

[0052] (6) When Q ∈ QTH and T > TTH, the controller controls the compressor and the air pump system to stop operating, so that the entire water body anti-freezing device stops working and reduces energy consumption.

[0053] In summary, this water antifreeze device based on solar energy and air energy storage has two primary benefits: first, compressed air antifreeze, and second, air energy storage. The compressed air method uses gas (usually air) to be blown underwater through pipes to prevent freezing due to low temperatures. This method is simple to operate and has far less pollution and side effects than other antifreeze methods. The only drawback is the lack of a continuous and stable air supply. The present invention addresses this issue by organically combining compressed air antifreeze with air energy storage technology, breaking away from the traditional mobile air supply system consisting of mobile diesel generators and compressed air pumps. Specifically, air energy storage technology converts electrical energy into compressed air and stores it. When electrical energy is needed, the stored compressed air is released to generate electricity. In practical applications, this system can participate in load regulation of the power grid, reducing its strain. Specifically, when the grid load is low and the power supply is sufficient (such as at night or when there is excess wind or solar energy), grid electricity is consumed to compress air and store it in the gas storage reservoir. When grid load is low and additional power is needed, the stored compressed air is released and used to generate electricity through the generator set. This novel combination not only provides a continuous and stable air supply for the compressed air method, but also offers a long-term energy storage solution suitable for coping with long-term fluctuations in electricity demand.

[0054] Example 2

[0055] Compared with Example 1, the water body antifreeze device based on solar energy and air energy storage in this embodiment also includes a heat management module, which is used to manage the heat generated during air compression and compressed air release to improve the efficiency of air compression. Specifically, in the process of compressed air energy storage, since heat is generated when the air is compressed, the temperature will drop when it expands, that is, when the compressed air is introduced into the generator set to generate electricity. The heat released when the gas is compressed and stored in the gas storage reservoir can be collected by the heat management module for subsequent use. For example, the heat management module may include a heat exchange plate, a heat exchange medium, etc. The heat generated in the gas storage reservoir is collected by the heat exchange plate, and the collected heat is transferred to the outside of the gas storage reservoir for use or storage through the heat exchange medium, thereby improving the system efficiency of the entire water body antifreeze device.

[0056] Example 3

[0057] Compared with Example 1 or Example 2, the water body antifreeze device based on solar energy and air energy storage in this embodiment also includes a clean energy module, which is used to generate electricity using clean energy and store the electricity. The clean energy module includes: a solar power generation group and / or a wind power generation group, and an energy storage module. Clean electricity is generated using solar energy or wind energy, and the electricity is stored in the energy storage module. When the compressor and air pump system are working, the electricity stored in the energy storage module is used synchronously until the power inside it is lower than the storage threshold range, that is, it is close to being used up, thereby reducing the power consumption of the power grid and increasing the proportion of clean energy use.

[0058] Example 4

[0059] This embodiment differs from the first embodiment in that the air pump system further includes an air injection device, an ice sensor, a tee, and two solenoid valves. The ice sensor is installed on equipment susceptible to condensation to detect condensation and generate an icing signal. Ice sensors, including optical, electrical, and mechanical types, are relatively mature products that convert signals indicating ice thickness on an object's surface into electrical signals. The appropriate model should be selected based on actual site conditions. The air injection device is connected to a pipeline and is used to remove ice and snow from the equipment using compressed air. The tee replaces the conventional pipeline in the first embodiment. The inlet branch of the tee is connected to the gas storage reservoir, while one outlet branch is connected to the bubble generator and the other outlet branch is connected to the air injection device. Two solenoid valves are installed on each outlet branch of the tee. When the controller receives an ice signal or a temperature signal below a threshold, it controls the corresponding solenoid valve to open, allowing compressed air to enter the bubble generator or air injection device. If both of these conditions occur simultaneously, the two solenoid valves open simultaneously to prevent damage caused by freezing.

[0060] Equipment susceptible to icing includes high-voltage transmission lines and wind turbine blades. For example, de-icing wind turbine blades requires several icing sensors distributed across the blade surface. Air nozzles are positioned near key locations on the blades. When a controller receives an icing signal, it directs compressed air from the air reservoir to be ejected through the air injection device. This high-speed airflow impacts the blade surface, preventing ice and snow from adhering or stripping away any that have already adhered, thereby achieving an anti-icing effect.

[0061] Example 5

[0062] This embodiment also proposes a water antifreeze method based on solar energy and air energy storage, which is applied to the water antifreeze device based on solar energy and air energy storage in embodiment 1. Figure 2 As shown, the water antifreeze method based on air energy storage includes the following steps:

[0063] S1. Obtain the load intensity Q of the power grid, the pressure signal P of the gas storage reservoir, and the temperature signal T of the water body.

[0064] Among them, the load intensity Q of the power grid can be obtained by applying for dispatching data from relevant power grid companies or platforms. The pressure signal P is obtained in real time by a pressure sensor. The temperature signal T is obtained in real time by a temperature sensor.

[0065] S2. If Q < QTH, control the compressor to operate powered by the power grid. Then judge whether P > PTH1 or whether Q > QTH. If so, control the compressor to stop working; if P < PTH1 and Q < QTH, control the compressor to continue working.

[0066] If Q > QTH, control the switching valve to adjust the connection between the gas storage reservoir and the generator set for power generation.

[0067] If T < TTH, control the switching valve to adjust the connection between the gas storage reservoir and the air pump system to generate bubbles in the water body; if T ≥ TTH, control the air pump system to shut down.

[0068] If T < TTH and P < PTH2, control the compressor to operate until T ≥ TTH.

[0069] If Q > QTH and T < TTH, control the air pump system to generate bubbles and shut down the generator set.

[0070] Embodiment Six

[0071] In this embodiment, a software program product is also proposed. The software program product includes program instructions, which when running on an electronic device, cause the electronic device to execute the steps of the method for preventing water body freezing based on solar energy and air energy storage in Embodiment Five.

[0072] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0073] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limitations on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A water body antifreeze device based on solar energy and air energy storage, characterized in that: It includes: A gas storage facility for storing compressed air; A compressor is used to compress the air to a high pressure state and send it to a gas storage reservoir for storage; A generator set, which is used to generate electricity when driven by the compressed air when it is released, and is connected to the power grid; The air pump system includes a pipeline and a bubble generator; the pipeline is used to connect the air storage reservoir and the bubble generator and introduce the compressed air into the bubble generator; the bubble generator is arranged in the water body and is used to spray the compressed air into the water body to generate bubbles; A switching valve is used to control the on / off state of the gas storage outlet and to adjust the connection between the gas storage and the generator set or between the gas storage and the air pump system; A pressure sensor, which is used to detect the internal pressure of the gas storage reservoir and generate a pressure signal; A temperature sensor, which is used to detect the temperature of the water body where the air pump system is located and generate a temperature signal; and A controller for: (1) Used to detect the load intensity of the power grid and receive pressure signals and temperature signals; when the load intensity is lower than the lower limit of the intensity threshold interval, control the compressor to work through the power supply of the power grid until the pressure signal is greater than the upper limit of the pressure threshold interval 1 or the load intensity is higher than the upper limit of the intensity threshold interval; (2) It is also used to control the switching valve to adjust the connection between the gas storage reservoir and the generator set to generate electricity when the load intensity is higher than the upper limit of the intensity threshold interval; (3) It is also used to control the switching valve to adjust the connection between the gas storage reservoir and the air pump system to generate bubbles in the water body when the temperature signal is lower than the temperature threshold; (4) It is also used to control the air pump system to generate bubbles and shut down the generator set when the load intensity is higher than the upper limit of the intensity threshold interval and the temperature signal is lower than the temperature threshold.

2. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: When the temperature signal is lower than the temperature threshold, and the pressure signal is lower than the lower limit of the second pressure threshold interval, the controller controls the compressor to work until the temperature signal is equal to or higher than the temperature threshold; Wherein, the value of the pressure threshold interval 2 is smaller than the pressure threshold interval 1; When the temperature signal is higher than or equal to the temperature threshold, the controller controls the air pump system to shut down.

3. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: When the load intensity is within the intensity threshold range and the temperature signal is higher than the temperature threshold, the controller controls the compressor and the air pump system to stop working.

4. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: The gas storage is any one or more of underground caves, mines, salt wells, tunnels or special gas tanks.

5. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: The water body antifreeze device also includes a heat management module, which is used to manage the heat during air compression and compressed air release to improve the efficiency of air compression.

6. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: The water body antifreeze device also includes a clean energy module, which is used to generate electricity using clean energy and store the electricity; When the compressor and the air pump system are working, the electricity generated by the clean energy module is used synchronously until the electricity stored in the clean energy module is lower than the storage threshold range.

7. The water body antifreeze device based on solar energy and air energy storage according to claim 1 is characterized in that: The air pump system also includes an air injection device and an ice sensor; The icing sensor is used to be installed on equipment that is susceptible to icing to detect the icing of the equipment and generate an icing signal; The air jet device is connected to the pipeline and is used to peel off ice and snow on the equipment using compressed air; The controller is also used to control the compressed air in the air storage to be sprayed through the air spray device when receiving an icing signal.

8. The water body antifreeze device based on solar energy and air energy storage according to claim 7 is characterized in that: The pipeline is a three-way pipe; the inlet branch of the three-way pipe is connected to the gas storage reservoir, one of the outlet branches is connected to the bubble generator, and the other outlet branch is connected to the air injection device; The water body antifreeze device also includes two solenoid valves, which are respectively installed on two outlet branches of the three-way pipe; When the controller receives an ice formation signal or a temperature signal lower than a temperature threshold, the controller controls the corresponding solenoid valve to open.

9. A water body antifreeze method based on solar energy and air energy storage, characterized in that: It is applied to a water body antifreeze device based on solar energy and air energy storage as described in any one of claims 1 to 8; a water body antifreeze method based on air energy storage comprises the following steps: S1, obtaining the load intensity of the power grid, the pressure signal of the gas storage reservoir and the temperature signal of the water body; S2. If the load intensity is lower than the lower limit of the intensity threshold interval, the compressor is controlled to work through the power grid until the pressure signal is greater than the upper limit of the pressure threshold interval 1 or the load intensity is higher than the upper limit of the intensity threshold interval; If the load intensity is higher than the upper limit of the intensity threshold interval, the switching valve is controlled to adjust the gas storage reservoir to be connected with the generator set to generate electricity; If the temperature signal is lower than the temperature threshold, the switching valve is controlled to adjust the gas storage reservoir to communicate with the air pump system to generate bubbles in the water body; If the temperature signal is lower than the temperature threshold, and the pressure signal is lower than the lower limit of the pressure threshold interval 2, the controller controls the compressor to work until the temperature signal is higher than or equal to the temperature threshold; wherein the value of the pressure threshold interval 2 is less than the pressure threshold interval 1; If the load intensity is higher than the upper limit of the intensity threshold interval and the temperature signal is lower than the temperature threshold, the air pump system is controlled to generate bubbles and shut down the generator set; If the temperature signal is higher than or equal to the temperature threshold, the air pump system is controlled to shut down.

10. A software program product, characterized in that The software program product includes program instructions, which, when running on an electronic device, enable the electronic device to execute the steps of the water body antifreezing method based on solar energy and air energy storage as described in claim 9.

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