Seawater desalination methods and corresponding seawater desalination products

Abstract

This disclosure relates to a seawater desalination method and corresponding seawater desalination products, belonging to the field of seawater desalination technology. The seawater desalination method includes: real-time acquisition of environmental parameters of a hot water storage tank used for heating stored seawater, the temperature of a phase change thermal storage temperature control layer corresponding to the phase change thermal storage temperature control layer disposed on the outside of the hot water storage tank, and the outlet temperature corresponding to the outlet of the hot water storage tank; determining the heating mode of the hot water storage tank based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the outlet temperature; in the heating mode, obtaining air-condensed freshwater using a membrane humidifier connected to the outlet and a condenser connected to the membrane humidifier; and transporting the seawater discharged from the membrane humidifier to an evaporation tank to obtain seawater condensed freshwater. Embodiments of this disclosure can achieve seawater desalination.

Description

Technical Field

[0001] This disclosure relates to the field of seawater desalination technology, and in particular to a seawater desalination method and corresponding seawater desalination products. Background Technology

[0002] In recent years, human demand for freshwater resources has increased, with both inland saline lakes and seawater becoming sources of freshwater. Currently, commonly used seawater desalination methods include thermal and membrane methods. Both thermal and membrane methods involve complex and expensive equipment, rely primarily on non-renewable energy sources, and have relatively low desalination efficiency.

[0003] The heating method for the feed liquid in Japanese Patent Application Publication No. 11-267643 uses coal or petroleum as fuel and steam generated by a boiler to heat seawater, a process that consumes a large amount of high-grade energy. In patents CN103771551A and CN 113880175A, whether using waste heat or solar energy, the method inevitably involves heating seawater thermally to produce fresh water. Such devices are cumbersome and have low freshwater yields. While patent CN 104803532A utilizes a solar membrane distillation device, weather conditions cause unstable solar heating, resulting in fluctuating feed liquid temperatures in the hot water storage tank, making it impossible to maintain a stable feed liquid temperature of 55-80°C before entering the membrane humidifier. When the feed liquid temperature is below 55℃, the evaporation rate of the feed liquid decreases, directly affecting the mass transfer efficiency of the membrane module and the yield of fresh water. When the feed liquid temperature is above 80℃, the high-temperature feed liquid may damage the membrane material, reducing the membrane's lifespan. In addition, the high-temperature feed liquid will increase energy loss between the system and the environment. Therefore, maintaining the feed liquid temperature between 55-80℃ can effectively balance the relationship between the water production rate, system energy loss, and membrane lifespan. Summary of the Invention

[0004] This disclosure presents a seawater desalination method and a corresponding technical solution for seawater desalination products.

[0005] According to one aspect of this disclosure, a seawater desalination method is provided, comprising:

[0006] The system acquires in real time the environmental parameters of the hot water storage tank used for heating the stored seawater, the temperature of the phase change thermal storage temperature control layer corresponding to the phase change thermal storage temperature control layer set on the outside of the hot water storage tank, and the liquid outlet temperature corresponding to the liquid outlet of the hot water storage tank, and determines the heating mode of the hot water storage tank based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the liquid outlet temperature.

[0007] In the thermal mode, air-condensed fresh water is obtained by using a membrane humidifier connected to the liquid outlet and a condenser connected to the membrane humidifier; seawater discharged from the membrane humidifier is transported to an evaporation tank to obtain seawater-condensed fresh water.

[0008] Preferably, the method for real-time acquisition of environmental parameters of the hot water storage tank used for heating seawater, the temperature of the phase change thermal storage temperature control layer corresponding to the hot water storage tank, and the liquid outlet temperature corresponding to the liquid outlet of the hot water storage tank, and for determining the heating mode of the hot water storage tank based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the liquid outlet temperature, includes:

[0009] If the air temperature in the environmental parameters acquired in real time is lower than the preset air temperature, then the temperature of the thermal storage temperature control layer and the liquid outlet temperature are acquired in real time.

[0010] If the temperature of the thermal storage and temperature control layer is lower than the solid-state critical temperature of the phase change material inside it and the outlet temperature is lower than the first preset temperature, then the heating component installed in the hot water storage tank is controlled to heat the seawater; during the heating of the seawater, when the outlet temperature rises to the second preset temperature and the temperature of the thermal storage and temperature control layer is higher than the liquid-state critical temperature of the phase change material inside it, then the heating component is controlled to stop heating the seawater, and the phase change thermal storage and temperature control layer is used to heat the seawater; the above process is repeated to maintain the outlet temperature between the first preset temperature and the second preset temperature;

[0011] If the air temperature in the environmental parameters acquired in real time is higher than or equal to the preset air temperature, the first reflux pump between the outlet of the hot water storage tank and the inlet of the solar collector is turned on, the solar collector is used to heat the seawater in the hot water storage tank, and the heated seawater is injected into the hot water storage tank through the inlet of the hot water storage tank.

[0012] Preferably, the process of heating the seawater using the phase change thermal storage and temperature control layer with a solar collector further includes: obtaining the temperature of the thermal storage and temperature control layer; if the temperature of the thermal storage and temperature control layer is lower than the solid-state critical temperature of the phase change material therein, then cooling the seawater using the phase change thermal storage and temperature control layer; if the temperature of the thermal storage and temperature control layer is higher than the liquid-state critical temperature of the phase change material therein, then stopping the cooling of the seawater using the phase change thermal storage and temperature control layer.

[0013] Preferably, after acquiring the air temperature from the environmental parameters in real time, the air temperature is corrected to obtain a corrected air temperature; furthermore, if the corrected air temperature is lower than the preset air temperature, the temperature of the thermal storage temperature control layer and the liquid outlet temperature are acquired in real time; if the corrected air temperature is lower than the preset air temperature, the temperature of the thermal storage temperature control layer and the liquid outlet temperature are acquired in real time.

[0014] Preferably, the method for obtaining air-condensed fresh water using a membrane humidifier connected to the liquid outlet and a condenser connected to the membrane humidifier includes: injecting air of a first temperature and humidity into the membrane humidifier using a fan connected to the outlet of the condenser and the inlet of the membrane humidifier respectively; heating and humidifying the air of the first temperature using the membrane humidifier; condensing the heated and humidified air of a second temperature and humidity using the condenser to obtain air-condensed fresh water; simultaneously controlling uncondensed air of the first temperature and humidity to enter the membrane humidifier through the fan; repeating the above process; and / or, the method for condensing the heated and humidified air of a second temperature and humidity using the condenser includes: driving a refrigerant into the condenser using a feed pump; condensing the heated and humidified air of a second temperature and humidity using the refrigerant; and then discharging the refrigerant from the liquid outlet of the condenser.

[0015] Preferably, the method for transporting the seawater discharged from the membrane humidifier to an evaporation tank to obtain seawater condensed freshwater includes: detecting the salinity value of the condensed seawater in the membrane humidifier; if the salinity value is greater than or equal to a set salinity value, then controlling the valve installed on the pipeline between the outlet of the membrane humidifier and the inlet of the evaporation tank to open, so that the condensed seawater in the membrane humidifier enters the evaporation tank to obtain seawater condensed freshwater. Preferably, the method of transporting the seawater discharged from the membrane humidifier to the evaporation tank to obtain seawater condensed freshwater further includes: if the salinity value is less than the set salinity value, controlling the second reflux pump installed in the pipeline between the membrane humidifier and the solar collector to start, so that the condensed seawater in the membrane humidifier enters the solar collector; and / or, the method of transporting the seawater discharged from the membrane humidifier to the evaporation tank to obtain seawater condensed freshwater further includes: using the heat-absorbing material installed in the evaporation tank or the outer or inner heat-absorbing material layer to heat the seawater in the evaporation tank, and using the condensing plate above the evaporation tank to condense and produce freshwater.

[0016] According to one aspect of this disclosure, a seawater desalination device is provided, comprising: a determining unit, configured to acquire in real time environmental parameters of a hot water storage tank used for heating stored seawater, the temperature of a phase change thermal storage temperature control layer corresponding to the phase change thermal storage temperature control layer disposed on the outside of the hot water storage tank, and the outlet temperature corresponding to the outlet of the hot water storage tank, and determine the heating mode of the hot water storage tank based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the outlet temperature; and a seawater desalination unit, configured to, in the heating mode, obtain air-condensed freshwater using a membrane humidifier connected to the outlet and a condenser connected to the membrane humidifier; and to transport seawater discharged from the membrane humidifier to an evaporation tank to obtain seawater condensed freshwater.

[0017] According to one aspect of this disclosure, a seawater desalination apparatus is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to perform the aforementioned seawater desalination method.

[0018] According to one aspect of this disclosure, a seawater desalination apparatus is provided, comprising: a computer-readable storage medium having stored thereon computer program instructions, which, when executed by a processor, implement the above-described seawater desalination method.

[0019] According to one aspect of this disclosure, a seawater desalination apparatus is provided, comprising: a computer program product configured with a computer program / instructions that, when executed by a processor, implement the aforementioned seawater desalination method.

[0020] According to one aspect of this disclosure, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above-described seawater desalination method.

[0021] According to one aspect of this disclosure, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the above-described seawater desalination method.

[0022] According to one aspect of this disclosure, a computer program product is provided, the computer program product being configured with a computer program / instructions that, when executed by a processor, implement the above-described seawater desalination method.

[0023] According to one aspect of this disclosure, a seawater desalination system is provided, which applies the seawater desalination method as described above and / or includes the seawater desalination apparatus as described above and / or includes the computer program product as described above.

[0024] According to one aspect of this disclosure, a phase change material is provided for use in the phase change thermal storage and temperature control layer of the above-described seawater desalination method or the above-described seawater desalination device, comprising: a carrier made of dioctyl diacid ester corresponding to the original phase change material and any one of the hybrid carbon aerogels of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose.

[0025] According to one aspect of this disclosure, a method for preparing a phase change material for use in the phase change thermal storage and temperature control layer of the above-described seawater desalination method or the above-described seawater desalination device is provided, comprising: melting dioctyl diacid corresponding to a first set ratio, a second set ratio, a third set ratio, and a fourth set ratio of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose at a first set temperature, respectively, to obtain a first original melted phase change material, a second original melted phase change material, a third original melted phase change material, and a fourth original melted phase change material;

[0026] Modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose are added to the first, second, third, and fourth original molten phase change materials, respectively. The first, second, third, and fourth original molten phase change materials after adding the modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose are then baked at a first set temperature.

[0027] In a vacuum environment, the modified boron nitride and the first original melted phase change material, the polyvinyl alcohol and the second original melted phase change material, the carboxymethyl cellulose and the third original melted phase change material, and the sodium carboxymethyl cellulose and the fourth original melted phase change material were impregnated for a set time to complete the preparation of the phase change materials.

[0028] According to one aspect of this disclosure, a seawater desalination system is provided, which applies the seawater desalination method described above; or includes the seawater desalination apparatus described above; or uses the phase change material described above to manufacture a phase change thermal storage and temperature control layer; or uses the phase change material obtained by the preparation method described above to manufacture a phase change thermal storage and temperature control layer.

[0029] According to one aspect of this disclosure, a seawater desalination system is provided, comprising: a first sensing and detection mechanism, a second sensing and detection mechanism, a third sensing and detection mechanism, and a controller respectively connected to the first sensing and detection mechanism, the second sensing and detection mechanism, and the third sensing and detection mechanism;

[0030] The first sensing and detection mechanism is located on the outside of the hot water storage tank and is used to detect the environmental parameters of the hot water storage tank used for heating the stored seawater in real time; the second sensing and detection mechanism is located on the phase change thermal storage temperature control layer on the outside of the hot water storage tank and is used to detect the temperature of the thermal storage temperature control layer corresponding to the phase change thermal storage temperature control layer in real time; the third sensing and detection mechanism is located at the liquid outlet of the hot water storage tank and is used to detect the liquid outlet temperature corresponding to the liquid outlet in real time.

[0031] The outlet of the hot water storage tank is connected to the first inlet of the membrane humidifier, and the first outlet of the membrane humidifier is connected to the first inlet of the condenser.

[0032] The controller is used to acquire the environmental parameters, the temperature of the thermal storage temperature control layer, and the outlet temperature in real time, and determine the heating mode of the hot water storage tank based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the outlet temperature; in the heating mode, air condensed fresh water is obtained by using a membrane humidifier connected to the outlet and a condenser connected to the membrane humidifier; seawater discharged from the membrane humidifier is transported to the evaporation tank to obtain seawater condensed fresh water.

[0033] Preferably, the first outlet of the condenser is connected to the second inlet of the membrane humidifier via a fan, and the second outlet of the membrane humidifier is connected to an evaporation tank; a fan is also provided on the connecting pipe between the first outlet of the condenser and the second inlet of the membrane humidifier; the controller is further configured to use the fan to inject air of a first temperature and humidity into the membrane humidifier through the second inlet of the membrane humidifier; the membrane humidifier heats and humidifies the air of the first temperature; the condenser condenses the heated and humidified air of the second temperature and humidity entering through the first inlet to obtain condensed water; simultaneously, the uncondensed air of the first temperature and humidity is controlled to enter the membrane humidifier through the fan and the second inlet of the membrane humidifier; the above process is repeated.

[0034] Preferably, the second inlet of the condenser is provided with a feed pump, and the second outlet of the condenser is provided with a liquid outlet; the controller is also used to drive the refrigerant into the condenser using the feed pump; to use the refrigerant to condense the heated and humidified air entering the condenser at a second temperature and humidity; and then to discharge the refrigerant from the liquid outlet.

[0035] Preferably, the second outlet of the membrane humidifier is further equipped with a salinity sensor for detecting the salinity value of the condensed seawater in the membrane humidifier and a valve installed on the pipeline between the second outlet of the membrane humidifier and the inlet of the evaporation tank; the controller is further configured to: if the salinity value is greater than or equal to a set salinity value, control the valve to open, so that the condensed seawater in the membrane humidifier enters the evaporation tank to obtain seawater condensed freshwater.

[0036] Preferably, a second reflux pump is provided in the pipeline between the second outlet of the membrane humidifier and the solar collector; the controller is further configured to: if the salinity value of the condensed seawater in the membrane humidifier is detected to be less than the set salinity value, control the second reflux pump to start, so that the condensed seawater in the membrane humidifier enters the solar collector.

[0037] Preferably, the evaporation tank is provided with a heat-absorbing material or an outer or inner layer of heat-absorbing material for heating the seawater in the hot evaporation tank, and a condenser plate for condensing and producing fresh water is provided above the evaporation tank.

[0038] Preferably, a first reflux pump is provided between the outlet of the hot water storage tank and the inlet of the solar collector; the controller is used to obtain air-condensed freshwater in the hot mode using a membrane humidifier connected to the liquid outlet and a condenser connected to the membrane humidifier; and to transport seawater discharged from the membrane humidifier to an evaporation tank to obtain seawater-condensed freshwater, including: if the air temperature in the environmental parameters acquired in real time is lower than a preset air temperature, then the temperature of the heat storage temperature control layer and the liquid outlet temperature are acquired in real time; if the temperature of the heat storage temperature control layer is lower than the solid-state critical temperature of the phase change material therein and the liquid outlet temperature is lower than a first preset temperature, then the heating component installed in the hot water storage tank is controlled to condense the seawater. Heating is performed; during the heating of the seawater, when the outlet temperature rises to the second preset temperature and the temperature of the thermal storage and temperature control layer is higher than the liquid critical temperature of the phase change material inside, the heating component is controlled to stop heating the seawater, and the phase change thermal storage and temperature control layer is used to heat the seawater; the above process is repeated to maintain the outlet temperature between the first preset temperature and the second preset temperature; if the air temperature in the environmental parameters obtained in real time is higher than or equal to the preset air temperature, the first reflux pump is controlled to start, the solar collector is used to heat the seawater in the hot water storage tank, and the heated seawater is injected into the hot water storage tank through the inlet of the hot water storage tank.

[0039] Preferably, during the process of heating the seawater using the phase change thermal storage and temperature control layer with a solar collector, the controller is also used to acquire the temperature of the thermal storage and temperature control layer; if the temperature of the thermal storage and temperature control layer is lower than the solid-state critical temperature of the phase change material inside it, the seawater is cooled using the phase change thermal storage and temperature control layer; when the temperature of the thermal storage and temperature control layer is higher than the liquid-state critical temperature of the phase change material inside it, the cooling of the seawater by the phase change thermal storage and temperature control layer is stopped.

[0040] Preferably, the phase change material of the phase change thermal storage temperature control layer includes: a carrier made of dioctyl diacid ester corresponding to the original phase change material and any one of the hybrid carbon aerogels of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose.

[0041] Preferably, after acquiring the air temperature from the environmental parameters in real time, the controller is further configured to correct the air temperature to obtain a corrected air temperature; then, if the corrected air temperature is lower than a preset air temperature, the controller acquires the temperature of the thermal storage temperature control layer and the liquid outlet temperature in real time; if the corrected air temperature is lower than the preset air temperature, the controller acquires the temperature of the thermal storage temperature control layer and the liquid outlet temperature in real time.

[0042] Preferably, it also includes: a phase change thermal storage photovoltaic power generation device for supplying power to the system and a battery connected thereto.

[0043] Preferably, the phase change thermal storage photovoltaic power generation device includes: a silica aerogel insulation layer, a photovoltaic power generation panel disposed on one side of the silica aerogel insulation layer, a phase change thermal storage layer disposed on one side of the photovoltaic power generation panel, and a plurality of thermoelectric power generation modules connected to the photovoltaic power generation panel.

[0044] Preferably, each of the thermoelectric power generation modules includes: P-type particles, N-type particles, a first end component, and a second end component; wherein the two ends of the alternately arranged and interconnected P-type particles and N-type particles are respectively disposed on opposite sides between the first end component and the second end component, the other side of the first end component of the plurality of thermoelectric power generation modules is respectively connected to the phase change thermal storage layer, the P-type particles and N-type particles disposed on one side of the first end component or the second end component are respectively configured with positive terminals and negative terminals, the positive terminals and negative terminals are respectively provided with wires, and the other side of the second end component is provided with a heat sink.

[0045] In the embodiments of this disclosure, a seawater desalination method and a corresponding seawater desalination product are proposed to solve existing problems such as freshwater production efficiency.

[0046] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0047] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0048] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions of this disclosure.

[0049] Figure 1 A flowchart of a seawater desalination method according to an embodiment of the present disclosure is shown;

[0050] Figure 2 A schematic diagram of a seawater desalination system according to an embodiment of the present disclosure is shown;

[0051] Figure 3 This illustrates the effect of the hybridization ratio of the composite phase change material on the thermal conductivity of the phase change material according to embodiments of the present disclosure;

[0052] Figure 4 A schematic diagram of a phase change thermal storage photovoltaic power generation device according to an embodiment of the present disclosure is shown;

[0053] Figure 5 A schematic diagram of a thermoelectric power generation module according to an embodiment of the present disclosure is shown;

[0054] Figure 6 This is a block diagram illustrating an electronic device 800 according to an exemplary embodiment;

[0055] Figure 7 This is a block diagram illustrating an electronic device 1900 according to an exemplary embodiment. Detailed Implementation

[0056] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0057] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0058] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0059] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0060] It is understood that the various method embodiments mentioned above in this disclosure can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this disclosure will not elaborate further.

[0061] In addition, this disclosure also provides seawater desalination apparatus, electronic equipment, computer-readable storage medium, program products, and seawater desalination systems, all of which can be used to implement any of the seawater desalination methods provided in this disclosure. The corresponding technical solutions and descriptions are described in the relevant section on seawater desalination methods and will not be repeated here.

[0062] Figure 1 A flowchart of a seawater desalination method according to an embodiment of the present disclosure is shown; Figure 2 A schematic diagram of a seawater desalination system according to an embodiment of the present disclosure is shown. Figure 1 and Figure 2 As shown, the seawater desalination method includes: Step S101: Real-time acquisition of environmental parameters of the hot water storage tank 2 used for heating the stored seawater, the temperature of the phase change thermal storage temperature control layer 1 set on the outside of the hot water storage tank 2, and the outlet temperature of the hot water storage tank 2 at the outlet 6, and determination of the heating mode of the hot water storage tank 2 based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the outlet temperature; Step S102: In the heating mode, using a membrane humidifier 7 connected to the outlet 6 and a condenser 9 connected to the membrane humidifier 7, air-condensed freshwater is obtained; the seawater discharged from the membrane humidifier 7 is transported to the evaporation tank 13 to obtain seawater condensed freshwater. This solves existing problems such as freshwater production efficiency.

[0063] Step S101: Real-time acquisition of environmental parameters of the hot water storage tank 2 used for heating the stored seawater, the temperature of the phase change heat storage temperature control layer 1 set on the outside of the hot water storage tank 2, and the liquid outlet temperature of the hot water storage tank 2 at the liquid outlet 6, and determination of the heating mode of the hot water storage tank 2 based on the environmental parameters, the temperature of the heat storage temperature control layer, and the liquid outlet temperature.

[0064] In the embodiments of this disclosure, the method for real-time acquisition of environmental parameters of the hot water storage tank 2 used for heating seawater, the temperature of the phase change thermal storage temperature control layer 1 corresponding to the hot water storage tank 2, and the liquid outlet temperature corresponding to the liquid outlet 6 of the hot water storage tank 2, and for determining the heating mode of the hot water storage tank 2 based on the environmental parameters, the temperature of the thermal storage temperature control layer, and the liquid outlet temperature, includes: if the air temperature in the real-time acquired environmental parameters is lower than a preset air temperature, then the temperature of the thermal storage temperature control layer and the liquid outlet temperature are acquired in real time; if the temperature of the thermal storage temperature control layer is lower than the solid-state critical temperature of the phase change material therein and the liquid outlet temperature is lower than a first preset temperature, then the heating component installed in the hot water storage tank 2 is controlled to heat the seawater; when the... During the seawater heating process, when the outlet temperature rises to the second preset temperature and the temperature of the thermal storage and temperature control layer is higher than the critical liquid temperature of the phase change material inside, the heating component is controlled to stop heating the seawater, and the phase change thermal storage and temperature control layer 1 is used to heat the seawater; the above process is repeated to maintain the outlet temperature between the first preset temperature and the second preset temperature; if the air temperature in the real-time acquired environmental parameters is higher than or equal to the preset air temperature, the first reflux pump 18 between the outlet of the hot water storage tank 2 and the inlet of the solar collector 17 is turned on, the solar collector 17 is used to heat the seawater in the hot water storage tank 2, and the heated seawater is injected into the hot water storage tank 2 through the inlet of the hot water storage tank 2.

[0065] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the preset air temperature, the first preset temperature and the second preset temperature according to actual needs.

[0066] In the embodiments of this disclosure, the process of heating the seawater using the phase change thermal storage and temperature control layer 1 with the solar collector 17 further includes: obtaining the temperature of the thermal storage and temperature control layer; if the temperature of the thermal storage and temperature control layer is lower than the solid-state critical temperature of the phase change material therein, then cooling the seawater using the phase change thermal storage and temperature control layer 1; when the temperature of the thermal storage and temperature control layer is higher than the liquid-state critical temperature of the phase change material therein, then stopping the cooling of the seawater by the phase change thermal storage and temperature control layer 1.

[0067] In the embodiments of this disclosure, after the air temperature in the environmental parameters is acquired in real time, the air temperature is corrected to obtain a corrected air temperature, so as to eliminate the temperature error caused by the aging of the air temperature sensor; furthermore, if the corrected air temperature is lower than the preset air temperature, the temperature of the heat storage temperature control layer and the liquid outlet temperature are acquired in real time; if the corrected air temperature is lower than the preset air temperature, the temperature of the heat storage temperature control layer and the liquid outlet temperature are acquired in real time.

[0068] In the embodiments of this disclosure and other possible embodiments, after the air temperature in the environmental parameters is acquired in real time, the air temperature is corrected. The method includes: training multiple preset predictors using multiple feature parameters corresponding to weather conditions, day / night ratio, and illumination values ​​in historical environmental parameters for different months, and their corresponding preset air temperature value labels or preset air temperature range labels, to obtain trained preset predictors for different months; and using multiple real-time feature parameters corresponding to weather conditions, day / night ratio, and illumination values ​​in the environmental parameters acquired in real time, and the trained preset predictors for the current month, to obtain multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges; determining the preset air temperature value or the preset air temperature range in which the air temperature is located and the corresponding probability value; and correcting the air temperature using the corresponding probability value to obtain the corrected air temperature.

[0069] In embodiments of this disclosure and other possible embodiments, the preset predictor may be configured as one or more of Support Vector Machine (SVM), Decision Tree (DT), Random Forest (RF), K Nearest Neighbors (KNN), Logistic Regression (LR), Adaptive Augmentation (Ada), Linear Discriminant Analysis (LDA), Cluster Analysis, Multilayer Perceptron (MLP), or improvements thereof to the preset classifiers described above.

[0070] In the embodiments of this disclosure and other possible embodiments, the weather conditions are configured as one or more of the following: cloudy, sunny, and rain / snow (light rain, moderate rain, heavy rain, torrential rain, light snow, moderate snow, heavy snow, and blizzard). The method for training a preset predictor using multiple feature parameters corresponding to weather conditions, day / night cycles, and illumination values ​​from historical environmental parameters of different months, along with their corresponding preset air temperature value labels or preset air temperature range labels, includes: encoding the weather conditions and day / night cycles to obtain encoded weather conditions and day / night cycles; normalizing the illumination values ​​to obtain normalized illumination values; concatenating the encoded weather conditions, day / night cycles, and the normalized illumination values ​​to obtain multiple corresponding feature parameters; and training the preset predictor using the multiple feature parameters and their corresponding preset air temperature value labels or preset air temperature range labels.

[0071] In the embodiments of this disclosure and other possible embodiments, when using multiple feature parameters corresponding to weather conditions, day / night cycles, and illumination values ​​in the real-time acquired environmental parameters, as well as a pre-trained preset predictor corresponding to the current month, to obtain multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges, it is also necessary to encode the weather conditions and day / night cycles in the real-time acquired environmental parameters, just as during training, to obtain encoded real-time weather conditions and real-time day / night cycles; and to normalize the real-time acquired illumination values ​​to obtain normalized real-time illumination values; the encoded real-time weather conditions, real-time day / night cycles, and the normalized real-time illumination values ​​are then concatenated to obtain multiple corresponding real-time feature parameters; and then, using the multiple real-time feature parameters and the pre-trained preset predictor corresponding to the current month, multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges are obtained.

[0072] In embodiments of this disclosure and other possible embodiments, the method of correcting the air temperature using the corresponding probability value to obtain a corrected air temperature includes: multiplying the corresponding probability value by the air temperature to obtain the corrected air temperature.

[0073] For example, in the embodiments of this disclosure and other possible embodiments, the day / night is encoded to obtain the encoded day / night as 1 / 0; including: encoding the weather conditions to obtain the encoded weather conditions corresponding to cloudy, sunny and rain / snow (light rain, moderate rain, heavy rain, rainstorm, light snow, moderate snow, heavy snow, blizzard) as 1, 2, 3 / 4 (5, 6, 7, 8, 9, 10, 11, 12).

[0074] For example, in the embodiments of this disclosure and other possible embodiments, the preset air temperature values ​​corresponding to multiple characteristic parameters such as weather conditions, day / night, and light intensity values ​​in the historical environmental parameters of different months can be divided into multiple temperature ranges according to a set temperature range to obtain the corresponding preset air temperature range labels.

[0075] Step S102: In the hot mode, using the membrane humidifier 7 connected to the liquid outlet 6 and the condenser 9 connected to the membrane humidifier 7, fresh water is obtained from the air condensation; the seawater discharged from the membrane humidifier 7 is transported to the evaporation tank 13 to obtain fresh water from the seawater condensation.

[0076] In an embodiment of this disclosure, the method for obtaining air-condensed fresh water using a membrane humidifier 7 connected to the liquid outlet 6 and a condenser 9 connected to the membrane humidifier 7 includes: injecting air of a first temperature and humidity into the membrane humidifier 7 using a fan 8 connected to the outlet of the condenser 9 and the inlet of the membrane humidifier 7 respectively; heating and humidifying the air of the first temperature using the membrane humidifier 7; condensing the heated and humidified air of a second temperature and humidity using the condenser 9 to obtain air-condensed fresh water; simultaneously, controlling the uncondensed air of the first temperature and humidity to enter the membrane humidifier 7 through the fan 8; and repeating the above process.

[0077] In an embodiment of this disclosure, the method of condensing heated and humidified air of a second temperature and humidity by means of the condenser 9 includes: using a feed pump 10 to drive a refrigerant into the condenser 9; using the refrigerant to condense the heated and humidified air of a second temperature and humidity by means of the condensant; and then discharging the refrigerant from the outlet 11 of the condenser 9.

[0078] In an embodiment of this disclosure, the method of conveying seawater discharged from the membrane humidifier 7 to the evaporation tank 13 to obtain seawater condensed freshwater includes: detecting the salinity value of the seawater condensed in the membrane humidifier 7; if the salinity value is greater than or equal to a set salinity value, controlling the valve 12 installed on the pipeline between the outlet of the membrane humidifier 7 and the inlet of the evaporation tank 13 to open, so that the seawater condensed in the membrane humidifier 7 enters the evaporation tank 13 to obtain seawater condensed freshwater; and / or, if the salinity value is less than the set salinity value... If the salinity value is controlled, the second reflux pump 21 installed in the pipeline between the membrane humidifier 7 and the solar collector 17 is turned on, and the seawater condensed in the membrane humidifier 7 enters the solar collector 17; and / or, the method of transporting the seawater discharged from the membrane humidifier 7 to the evaporation tank 13 to obtain seawater condensed freshwater further includes: using the heat-absorbing material 15 installed in the evaporation tank 13 or the outer or inner heat-absorbing material layer to heat the seawater in the evaporation tank 13, and using the condensing plate 14 above the evaporation tank 13 to condense and produce freshwater.

[0079] In the embodiments of this disclosure and other possible embodiments, seawater heated by the solar collector 17 is stored in a hot water storage tank 2. The hot water storage tank contains a phase change thermal storage and temperature control layer 1, and the phase change material within the phase change thermal storage and temperature control layer 1 is a composite material made of dioctyl diacid ester (HDODA) and modified boron nitride (BNNs) / polyvinyl alcohol (PVA) / sodium carboxymethyl cellulose (CMC) hybrid carbon aerogel.

[0080] In the embodiments disclosed herein and other possible embodiments, when there is sufficient sunlight during the day, the seawater in the hot water storage tank 2 is heated by the solar collector 17. When the temperature reaches the phase change temperature of the phase change material, the phase change material in the phase change heat storage and temperature control layer 1 melts from solid to liquid and absorbs heat from the seawater in the hot water storage tank 2. This avoids damage to the membrane material of the membrane humidifier 7 caused by the high temperature of the seawater, which would reduce the service life of the membrane and increase energy consumption.

[0081] In the embodiments disclosed herein and other possible embodiments, when the solar collector cannot continuously heat the seawater due to cloudy or rainy weather, nighttime, or insufficient sunlight, the seawater temperature in the hot water storage tank 2 begins to drop. When the seawater temperature drops to the phase change temperature of the phase change material, the phase change material changes from a liquid to a solid state, releasing heat to the seawater. This prevents the seawater from reducing the evaporation rate of the feed liquid due to excessively low temperature, which would directly affect the mass transfer efficiency of the membrane module and the yield of freshwater. When the heat stored in the phase change material in the hot water storage tank is completely released, and the temperature sensor 4 installed at the outlet 6 of the hot water storage tank 2 detects that the seawater temperature is lower than a first preset temperature (e.g., 55°C), the system controller automatically triggers the heating wire 3 (heating component) in the hot water storage tank 2 to replenish the temperature. The power of the heating wire 3 comes from solar photovoltaic power generation or a battery. After heating for a period of time, when the seawater temperature reaches a second preset temperature (e.g., 80°C) that is higher than the first preset temperature, the system controller automatically stops the heating wire 3, and the seawater continues to be heated using the heat stored in the phase change material in the hot water storage tank 2. In this way, the temperature of the seawater in the hot water storage tank 2 will be continuously maintained between the first preset temperature and the second preset temperature (e.g., 55-80℃). When the temperature sensor 4 installed at the outlet 6 of the hot water storage tank 2 detects that the seawater temperature is between the first preset temperature and the second preset temperature (e.g., 55-80℃), the one-way valve 5 installed in the pipeline corresponding to the outlet 6 of the hot water storage tank 2 opens, and the seawater flows into the membrane humidifier 7 through the outlet 6 to heat and humidify the air.

[0082] In the embodiments disclosed herein and other possible embodiments, air enters the membrane humidifier 7 under the action of the fan 8, is heated and humidified, and then enters the condenser 9. The condensed freshwater from the humid air enters the freshwater collection tank 16. A portion of the seawater in the membrane humidifier 7 is returned to the solar collector 17 via the second return pump 21 for reheating and reuse. Due to the continuous concentration of seawater, another portion needs to be discharged from the system. Discharging highly concentrated brine, whether in inland or coastal areas, directly leads to environmental damage and energy waste. From the perspective of ecological environment and energy utilization, a solution recovery method is adopted for brine separation, which extracts the salt components from the concentrated brine and separates the required freshwater. The concentrated seawater (concentrated brine with a salinity value greater than or equal to the set salinity value) in the membrane humidifier 7 enters the evaporation tank 13 through the valve 12. Solar energy is absorbed by the heat-absorbing material 15 filled in the evaporation tank 13 to heat the seawater in the evaporation tank 13. While evaporating and producing salt, the water vapor rises and encounters the condenser plate 14 above the evaporation tank, which condenses to produce fresh water. The produced fresh water enters the fresh water collection tank 16.

[0083] The entity executing the seawater desalination method can be a seawater desalination device. For example, the seawater desalination method can be executed by a terminal device, a server, or other processing equipment. The terminal device can be user equipment (UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (PDA), a handheld device, a computing device, an in-vehicle device, a wearable device, etc. In some possible implementations, the seawater desalination method can be implemented by a processor calling computer-readable instructions stored in memory.

[0084] Those skilled in the art will understand that in the above-described seawater desalination method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0085] According to one aspect of this disclosure, embodiments of this disclosure also provide a seawater desalination device, comprising: a determining unit, configured to acquire in real time the environmental parameters of a hot water storage tank 2 used for heating stored seawater, the temperature of a phase change thermal storage temperature control layer 1 disposed on the outside of the hot water storage tank 2 corresponding to the thermal storage temperature control layer, and the outlet temperature of the hot water storage tank 2 corresponding to the outlet 6, and determine the heating mode of the hot water storage tank 2 based on the environmental parameters, the thermal storage temperature control layer temperature, and the outlet temperature; and a seawater desalination unit, configured to, in the heating mode, obtain air-condensed freshwater using a membrane humidifier 7 connected to the outlet 6 and a condenser 9 connected to the membrane humidifier 7; and to transport the seawater discharged from the membrane humidifier 7 to an evaporation tank 13 to obtain seawater condensed freshwater.

[0086] According to one aspect of this disclosure, an embodiment of this disclosure also provides a seawater desalination apparatus, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to execute the above-described seawater desalination method.

[0087] According to one aspect of this disclosure, embodiments of this disclosure also provide a seawater desalination apparatus, comprising: a computer-readable storage medium having stored thereon computer program instructions, wherein the computer program instructions, when executed by a processor, implement the above-described seawater desalination method.

[0088] According to one aspect of this disclosure, embodiments of this disclosure also provide a seawater desalination apparatus, comprising: a computer program product configured with a computer program / instruction, which, when executed by a processor, implements the aforementioned seawater desalination method.

[0089] According to one aspect of this disclosure, embodiments of this disclosure also provide an electronic device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: perform the above-described seawater desalination method.

[0090] According to one aspect of this disclosure, embodiments of this disclosure also provide a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the above-described seawater desalination method.

[0091] According to one aspect of this disclosure, embodiments of this disclosure also provide a computer program product configured with a computer program / instruction that, when executed by a processor, implements the above-described seawater desalination method.

[0092] According to one aspect of this disclosure, a seawater desalination system is provided, which applies the seawater desalination method as described above and / or includes the seawater desalination apparatus as described above and / or includes the computer program product as described above.

[0093] According to one aspect of this disclosure, a phase change material is provided for use in the phase change thermal storage and temperature control layer of the above-described seawater desalination method or the above-described seawater desalination device, comprising: a carrier made of dioctyl diacid ester corresponding to the original phase change material and any one of the hybrid carbon aerogels of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose.

[0094] In the embodiments of this disclosure and other possible embodiments, the phase change thermal storage and temperature control layer is a composite material made of dioctyl adipate (HDODA) and modified boron nitride (BNNs) / polyvinyl alcohol (PVA) / sodium carboxymethyl cellulose (CMC) hybrid carbon aerogel. 92% of the HDODA is encapsulated within the BNNs / PVA / CMC hybrid carbon aerogel, and the phase change temperature of the composite phase change material is 55.13-80.96℃. HDODA is the original phase change material, and the BNNs / PVA / CMC hybrid carbon aerogel is the carrier for encapsulating the phase change material. HDODA is an organic solid-liquid phase change material, which has low thermal conductivity and is prone to leakage. Based on the nature of this system, to obtain clean fresh water, the encapsulation technology must efficiently prevent leakage of the phase change material. Therefore, a porous framework encapsulation technology is selected. Due to the capillary action of the porous framework, leakage of the phase change material during the melting process can be avoided. The material used in the porous framework encapsulation technology is BNNs / PVA / CMC hybrid carbon aerogel. BNNs / PVA / CMC hybrid carbon aerogel has a high thermal conductivity component, which can significantly improve the thermal conductivity, mechanical properties and thermal stability of the composite phase change material after being combined with the phase change material; the hot water storage tank is made of metal materials with high thermal conductivity such as aluminum or copper.

[0095] In the embodiments of this disclosure and other possible embodiments, the composite phase change material is a composite material made of HDODA and BNNs / PVA / CMC hybrid carbon aerogel. HDODA is the original phase change material, and the BNNs / PVA / CMC hybrid carbon aerogel is the carrier encapsulating HDODA; the two are combined to form a BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change material.

[0096] According to one aspect of this disclosure, a method for preparing a phase change material for use in the phase change thermal storage and temperature control layer of the aforementioned seawater desalination method or device is provided, comprising: melting dioctyl diacid in proportions corresponding to a first set ratio, a second set ratio, a third set ratio, and a fourth set ratio of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose at a first set temperature, respectively, to obtain a first original melted phase change material, a second original melted phase change material, a third original melted phase change material, and a fourth original melted phase change material; and respectively in the first original melted phase change material, the second original melted phase change material, the third original melted phase change material, and the fourth original melted phase change material. The modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose are added to the phase change material. The first, second, third, and fourth original melt phase change materials after adding the modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose are baked at a first set temperature. Under vacuum, the baked modified boron nitride and the first original melt phase change material, the polyvinyl alcohol and the second original melt phase change material, the sodium carboxymethyl cellulose and the third original melt phase change material, and the sodium carboxymethyl cellulose and the fourth original melt phase change material are impregnated for a set time to complete the preparation of the phase change material.

[0097] In the embodiments of this disclosure and other possible embodiments, different proportions of HDODA are weighed and placed in small beakers. After melting at a first set temperature (e.g., 85°C), they are placed into BNNs / PVA / CMC hybrid carbon aerogels, and then transferred to an oven at a first set temperature (e.g., 85°C). After impregnation in a vacuum environment for a set time (48h), they are taken out to obtain BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change materials. The composite phase change materials contain HDODA in the first set proportion of 88%, the second set proportion of 90.5%, the third set proportion of 91.5%, and the fourth set proportion of 92%, respectively, and are named PCM-1, PCM-2, PCM-3, and PCM-4. Because the BNNs / PVA / CMC hybrid carbon aerogel matrix has a large number of hydroxyl groups, it exhibits good compatibility with HDODA. The hydrogen bonding and capillary interactions between the aerogel matrix and HDODA bind HDODA within the BNNs / PVA / CMC hybrid carbon aerogel matrix, preventing leakage caused by HDODA melting. Furthermore, the high thermal conductivity of BNNs forms a thermal conduction pathway within the carbon aerogel, enhancing the thermal conductivity of the phase change material. These properties make the composite phase change material more efficient for temperature control of seawater in hot water storage tanks.

[0098] Table 1. Effect of hybridization ratio on the performance of composite phase change materials.

[0099]

[0100]

[0101] Table 1 shows the effect of different composite ratios on the phase change performance of the phase change material. It can be observed that the BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change material possesses high latent heat storage capacity. The table also shows that the enthalpy of the BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change material is lower than that of HDODA, but the experimentally measured values ​​basically conform to the theoretical values. This indicates that the BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change material essentially maintains the excellent phase change performance of HDODA. Furthermore, the enthalpy of the composite phase change material increases with the increase of the phase change material content, indicating excellent potential for thermal management applications.

[0102] Figure 3 This illustrates the effect of the hybridization ratio of the composite phase change material according to embodiments of the present disclosure on the thermal conductivity of the phase change material. For example... Figure 3 As shown, HDODA has relatively weak basic thermal conductivity, with a thermal conductivity of 0.29 W / m·K. Adding BNNs / PVA / CMC hybrid carbon aerogel as a matrix significantly improves the thermal conductivity of the composite phase change material. This is because HDODA requires sufficient energy to undergo a phase transition; the higher the HDODA content in the hybrid carbon aerogel matrix, the more energy is required. This leads to changes in the thermal conductivity of BNNs / PVA / CMC hybrid carbon aerogel-based composite phase change materials with different HDODA contents. Simultaneously, the BNNs / PVA / CMC hybrid carbon aerogel framework provides a thermally conductive network for the composite phase change material, and due to the good compatibility between HDODA and the BNNs / PVA / CMC hybrid carbon aerogel, energy transfer is not hindered. These factors allow for faster heat transfer in the composite phase change material.

[0103] From Table 1 and Figure 3 It can be seen that the higher the HDODA content, the higher the thermal conductivity of the composite phase change material. However, as the HDODA content increases, the temperature range of the composite phase change material gradually decreases. Based on the operating conditions of this system, the composite phase change material is required to have a phase change temperature range close to 55-80℃ while possessing a high thermal conductivity. A high thermal conductivity allows for the rapid release of heat stored within the phase change material, resulting in high efficiency in regulating the seawater temperature in the hot water storage tank, ensuring the continuous and stable production of freshwater by the entire system. Therefore, for the optimized phase change material, this system selects PCM-4 as the final composite phase change material.

[0104] According to one aspect of this disclosure, embodiments of this disclosure provide a seawater desalination system that applies the seawater desalination method described above; or includes the seawater desalination device described above; or uses the phase change material described above to manufacture a phase change thermal storage and temperature control layer; or uses the phase change material obtained by the preparation method described above to manufacture a phase change thermal storage and temperature control layer.

[0105] According to one aspect of this disclosure, an embodiment provides a seawater desalination system, including: a first sensing and detection mechanism, a second sensing and detection mechanism, a third sensing and detection mechanism, and a controller respectively connected to the first sensing and detection mechanism, the second sensing and detection mechanism, and the third sensing and detection mechanism; the first sensing and detection mechanism is disposed on the outside of a hot water storage tank 2, and is used to detect environmental parameters of the hot water storage tank 2 used for heating stored seawater in real time; the second sensing and detection mechanism is disposed on a phase change thermal storage temperature control layer 1 on the outside of the hot water storage tank 2, and is used to detect the temperature of the thermal storage temperature control layer corresponding to the phase change thermal storage temperature control layer 1 in real time; the third sensing and detection mechanism is disposed at the liquid outlet 6 of the hot water storage tank 2, and is used to detect the liquid outlet temperature corresponding to the liquid outlet 6 in real time; the hot water storage tank 2 The liquid outlet 6 is connected to the first inlet of the membrane humidifier 7, the first outlet of the membrane humidifier 7 is connected to the first inlet of the condenser 9, the first outlet of the condenser 9 is connected to the second inlet of the membrane humidifier 7 via a fan 8, and the second outlet of the membrane humidifier 7 is connected to the evaporation tank 13. The controller is used to acquire the environmental parameters, the temperature of the heat storage temperature control layer, and the liquid outlet temperature in real time, and determine the heating mode of the hot water storage tank 2 according to the environmental parameters, the temperature of the heat storage temperature control layer, and the liquid outlet temperature. In the heating mode, the membrane humidifier 7 connected to the liquid outlet 6 and the condenser 9 connected to the membrane humidifier 7 are used to obtain air condensed fresh water. The seawater discharged from the membrane humidifier 7 is transported to the evaporation tank 13 to obtain seawater condensed fresh water.

[0106] In the embodiments of this disclosure, the first outlet of the condenser 9 is connected to the second inlet of the membrane humidifier 7 via a fan 8, and the second outlet of the membrane humidifier 7 is connected to the evaporation tank 13; a fan 8 is also provided on the connecting pipe between the first outlet of the condenser 9 and the second inlet of the membrane humidifier 7; the controller is further configured to use the fan 8 to inject air of a first temperature and humidity into the membrane humidifier 7 through the second inlet of the membrane humidifier 7; the membrane humidifier 7 heats and humidifies the air of the first temperature; the condenser 9 condenses the heated and humidified air of the second temperature and humidity entering through its first inlet to obtain condensed fresh water; simultaneously, the uncondensed air of the first temperature and humidity is controlled to enter the membrane humidifier 7 through the fan 8 and the second inlet of the membrane humidifier 7; the above process is repeated.

[0107] In the embodiments of this disclosure, a feed pump 10 is provided at the second inlet of the condenser 9, and a liquid outlet 11 is provided at the second outlet of the condenser 9; the controller is further configured to use the feed pump 10 to drive the refrigerant into the condenser 9; use the refrigerant to condense the heated and humidified air entering the condenser 9 at the second temperature and humidity; and then discharge the refrigerant from the liquid outlet 11.

[0108] In the embodiments of this disclosure, the second outlet of the membrane humidifier 7 is further provided with a salinity sensor for detecting the salinity value of the seawater condensed in the membrane humidifier 7, and a valve 12 is provided on the pipeline between the second outlet of the membrane humidifier 7 and the inlet of the evaporation tank 13; the controller is further configured to: if the salinity value is greater than or equal to a set salinity value, control the valve 12 to open, so that the seawater condensed in the membrane humidifier 7 enters the evaporation tank 13 to obtain seawater condensed freshwater.

[0109] In an embodiment of this disclosure, a second reflux pump 21 is provided in the pipeline between the second outlet of the membrane humidifier 7 and the solar collector 17; the controller is further configured to: if the salinity value of the seawater condensed in the membrane humidifier 7 is detected to be less than the set salinity value, control the second reflux pump 21 to turn on, and the seawater condensed in the membrane humidifier 7 enters the solar collector 17.

[0110] In the embodiments of this disclosure, the evaporation tank 13 is provided with a heat-absorbing material 15 or an outer or inner heat-absorbing material layer for heating the seawater in the hot evaporation tank 13, and a condenser plate 14 for condensing and producing fresh water is provided above the evaporation tank 13.

[0111] In the embodiments of this disclosure, the controller is used in the hot mode to obtain air-condensed freshwater using a membrane humidifier 7 connected to the liquid outlet 6 and a condenser 9 connected to the membrane humidifier 7; and to transport seawater discharged from the membrane humidifier 7 to an evaporation tank 13 to obtain seawater-condensed freshwater, including: if the air temperature in the environmental parameters acquired in real time is lower than a preset air temperature, then the temperature of the thermal storage temperature control layer and the liquid outlet temperature are acquired in real time; if the temperature of the thermal storage temperature control layer is lower than the solid-state critical temperature of the phase change material therein and the liquid outlet temperature is lower than a first preset temperature, then the heating component installed in the hot water storage tank 2 is controlled to heat the seawater; during the heating process of the seawater, when the liquid outlet... If the liquid temperature rises to the second preset temperature and the temperature of the thermal storage and temperature control layer is higher than the critical liquid temperature of the phase change material inside, then the heating component is controlled to stop heating the seawater, and the seawater is heated using the phase change thermal storage and temperature control layer 1; the above process is repeated to maintain the outlet liquid temperature between the first preset temperature and the second preset temperature; if the air temperature in the environmental parameters obtained in real time is higher than or equal to the preset air temperature, then the first reflux pump 18 between the outlet of the hot water storage tank 2 and the inlet of the solar collector 17 is controlled to be turned on, and the seawater in the hot water storage tank 2 is heated using the solar collector 17, and the heated seawater is injected into the hot water storage tank 2 through the inlet of the hot water storage tank 2.

[0112] In the embodiments of this disclosure, during the process of heating the seawater using the solar collector 17 to the phase change thermal storage and temperature control layer 1, the controller is also used to acquire the temperature of the thermal storage and temperature control layer; if the temperature of the thermal storage and temperature control layer is lower than the solid-state critical temperature of the phase change material therein, the phase change thermal storage and temperature control layer 1 is used to cool the seawater; when the temperature of the thermal storage and temperature control layer is higher than the liquid-state critical temperature of the phase change material therein, the cooling of the seawater by the phase change thermal storage and temperature control layer 1 is stopped.

[0113] In the embodiments disclosed herein and other possible embodiments, when there is sufficient sunlight during the day, the seawater in the hot water storage tank 2 is heated by the solar collector 17. When the temperature reaches the phase change temperature of the phase change material, the phase change material in the phase change heat storage and temperature control layer 1 melts from solid to liquid and absorbs heat from the seawater in the hot water storage tank 2. This avoids damage to the membrane material of the membrane humidifier 7 caused by the high temperature of the seawater, which would reduce the service life of the membrane and increase energy consumption.

[0114] In the embodiments disclosed herein and other possible embodiments, when the solar collector cannot continuously heat the seawater due to cloudy or rainy weather, nighttime, or insufficient sunlight, the seawater temperature in the hot water storage tank 2 begins to drop. When the seawater temperature drops to the phase change temperature of the phase change material, the phase change material changes from a liquid to a solid state, releasing heat to the seawater. This prevents the seawater from reducing the evaporation rate of the feed liquid due to excessively low temperature, which would directly affect the mass transfer efficiency of the membrane module and the yield of freshwater. When the heat stored in the phase change material in the hot water storage tank is completely released, and the temperature sensor 4 installed at the outlet 6 of the hot water storage tank 2 detects that the seawater temperature is lower than a first preset temperature (e.g., 55°C), the system controller automatically triggers the heating wire 3 (heating component) in the hot water storage tank 2 to replenish the temperature. The power of the heating wire 3 comes from solar photovoltaic power generation or a battery. After heating for a period of time, when the seawater temperature reaches a second preset temperature (e.g., 80°C) that is higher than the first preset temperature, the system controller automatically stops the heating wire 3, and the seawater continues to be heated using the heat stored in the phase change material in the hot water storage tank 2. In this way, the temperature of the seawater in the hot water storage tank 2 will be continuously maintained between the first preset temperature and the second preset temperature (e.g., 55-80℃). When the temperature sensor 4 installed at the outlet 6 of the hot water storage tank 2 detects that the seawater temperature is between the first preset temperature and the second preset temperature (e.g., 55-80℃), the one-way valve 5 installed in the pipeline corresponding to the outlet 6 of the hot water storage tank 2 opens, and the seawater flows into the membrane humidifier 7 through the outlet 6 to heat and humidify the air.

[0115] In the embodiments disclosed herein and other possible embodiments, air enters the membrane humidifier 7 under the action of the fan 8, is heated and humidified, and then enters the condenser 9. The condensed freshwater from the humid air enters the freshwater collection tank 16. A portion of the seawater in the membrane humidifier 7 is returned to the solar collector 17 via the second return pump 21 for reheating and reuse. Due to the continuous concentration of seawater, another portion needs to be discharged from the system. Discharging highly concentrated brine, whether in inland or coastal areas, directly leads to environmental damage and energy waste. From the perspective of ecological environment and energy utilization, a solution recovery method is adopted for brine separation, which extracts the salt components from the concentrated brine and separates the required freshwater. The concentrated seawater (concentrated brine with a salinity value greater than or equal to the set salinity value) in the membrane humidifier 7 enters the evaporation tank 13 through the valve 12. Solar energy is absorbed by the heat-absorbing material 15 filled in the evaporation tank 13 to heat the seawater in the evaporation tank 13. While evaporating and producing salt, the water vapor rises and encounters the condenser plate 14 above the evaporation tank, which condenses to produce fresh water. The produced fresh water enters the fresh water collection tank 16.

[0116] In the embodiments of this disclosure, the phase change material of the phase change thermal storage and temperature control layer 1 includes: a carrier made of dioctyl diacid ester corresponding to the original phase change material and a hybrid carbon aerogel made of one of modified boron nitride, polyvinyl alcohol, and sodium carboxymethyl cellulose.

[0117] In the embodiments of this disclosure, after the air temperature in the environmental parameters is acquired in real time, the controller is further configured to correct the air temperature to obtain a corrected air temperature; then, if the corrected air temperature is lower than a preset air temperature, the temperature of the heat storage temperature control layer and the liquid outlet temperature are acquired in real time; if the corrected air temperature is lower than the preset air temperature, the temperature of the heat storage temperature control layer and the liquid outlet temperature are acquired in real time.

[0118] In the embodiments of this disclosure and other possible embodiments, after the air temperature in the environmental parameters is acquired in real time, the air temperature is corrected. The method includes: training multiple preset predictors using multiple feature parameters corresponding to weather conditions, day / night ratio, and illumination values ​​in historical environmental parameters for different months, and their corresponding preset air temperature value labels or preset air temperature range labels, to obtain trained preset predictors for different months; and using multiple real-time feature parameters corresponding to weather conditions, day / night ratio, and illumination values ​​in the environmental parameters acquired in real time, and the trained preset predictors for the current month, to obtain multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges; determining the preset air temperature value or the preset air temperature range in which the air temperature is located and the corresponding probability value; and correcting the air temperature using the corresponding probability value to obtain the corrected air temperature.

[0119] In embodiments of this disclosure and other possible embodiments, the preset predictor may be configured as one or more of Support Vector Machine (SVM), Decision Tree (DT), Random Forest (RF), K Nearest Neighbors (KNN), Logistic Regression (LR), Adaptive Augmentation (Ada), Linear Discriminant Analysis (LDA), Cluster Analysis, Multilayer Perceptron (MLP), or improvements thereof to the preset classifiers described above.

[0120] In the embodiments of this disclosure and other possible embodiments, the weather conditions are configured as one or more of the following: cloudy, sunny, and rain / snow (light rain, moderate rain, heavy rain, torrential rain, light snow, moderate snow, heavy snow, and blizzard). The method for training a preset predictor using multiple feature parameters corresponding to weather conditions, day / night cycles, and illumination values ​​from historical environmental parameters of different months, along with their corresponding preset air temperature value labels or preset air temperature range labels, includes: encoding the weather conditions and day / night cycles to obtain encoded weather conditions and day / night cycles; normalizing the illumination values ​​to obtain normalized illumination values; concatenating the encoded weather conditions, day / night cycles, and the normalized illumination values ​​to obtain multiple corresponding feature parameters; and training the preset predictor using the multiple feature parameters and their corresponding preset air temperature value labels or preset air temperature range labels.

[0121] In the embodiments of this disclosure and other possible embodiments, when using multiple feature parameters corresponding to weather conditions, day / night cycles, and illumination values ​​in the real-time acquired environmental parameters, as well as a pre-trained preset predictor corresponding to the current month, to obtain multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges, it is also necessary to encode the weather conditions and day / night cycles in the real-time acquired environmental parameters, just as during training, to obtain encoded real-time weather conditions and real-time day / night cycles; and to normalize the real-time acquired illumination values ​​to obtain normalized real-time illumination values; the encoded real-time weather conditions, real-time day / night cycles, and the normalized real-time illumination values ​​are then concatenated to obtain multiple corresponding real-time feature parameters; and then, using the multiple real-time feature parameters and the pre-trained preset predictor corresponding to the current month, multiple probability values ​​corresponding to different preset air temperature values ​​or preset air temperature ranges are obtained.

[0122] In embodiments of this disclosure and other possible embodiments, the method of correcting the air temperature using the corresponding probability value to obtain a corrected air temperature includes: multiplying the corresponding probability value by the air temperature to obtain the corrected air temperature.

[0123] For example, in the embodiments of this disclosure and other possible embodiments, the day / night is encoded to obtain the encoded day / night as 1 / 0; including: encoding the weather conditions to obtain the encoded weather conditions corresponding to cloudy, sunny and rain / snow (light rain, moderate rain, heavy rain, rainstorm, light snow, moderate snow, heavy snow, blizzard) as 1, 2, 3 / 4 (5, 6, 7, 8, 9, 10, 11, 12).

[0124] For example, in the embodiments of this disclosure and other possible embodiments, the preset air temperature values ​​corresponding to multiple characteristic parameters such as weather conditions, day / night, and light intensity values ​​in the historical environmental parameters of different months can be divided into multiple temperature ranges according to a set temperature range to obtain the corresponding preset air temperature range labels.

[0125] In embodiments of this disclosure, the system further includes a phase change thermal photovoltaic power generation device 19 for supplying power to the system and a battery 20 connected thereto. The power in the system is supplied by either the phase change thermal photovoltaic power generation device 19 or the battery 20.

[0126] Figure 4 A schematic diagram of a phase change thermal storage photovoltaic power generation device according to an embodiment of the present disclosure is shown. Figure 4 As shown, the phase change thermal storage photovoltaic power generation device 19 includes: a silica aerogel insulation layer 22, a photovoltaic power generation panel 23 disposed on one side of the silica aerogel insulation layer 22, a phase change thermal storage layer 24 disposed on one side of the photovoltaic power generation panel 23, and a plurality of thermoelectric power generation modules 25 connected to the photovoltaic power generation panel 23.

[0127] In the embodiments of this disclosure and other possible embodiments, the phase change thermal storage photovoltaic power generation device 19 includes: a silica aerogel insulation layer 22, a photovoltaic power generation panel 23 disposed on one side of the silica aerogel insulation layer 22, a phase change thermal storage layer 24 disposed on one side of the photovoltaic power generation panel 23, and thermoelectric power generation modules 25 disposed on the other three sides except for those connected to the photovoltaic power generation panel 23.

[0128] In the embodiments disclosed herein and other possible embodiments, the silica aerogel insulation layer 22 is made of silica aerogel, which has high light transmittance and low thermal conductivity, making it a good light-transmitting and heat-insulating material; the photovoltaic power generation panel 23 is made of single-junction gallium arsenide, which has a photoelectric conversion efficiency of about 30%; the phase change heat storage layer 24 is made of a composite phase change material made of paraffin wax and carbon fiber, and the addition of carbon fiber improves the thermal conductivity of the paraffin wax phase change material; the container for encapsulating the phase change material (composite phase change material) is copper, which has good thermal conductivity.

[0129] Figure 5 A schematic diagram of a thermoelectric power generation module according to an embodiment of the present disclosure is shown. Figure 5As shown, the plurality of thermoelectric power generation modules 25 include: P-type particles 28, N-type particles 29, a first end component 26, and a second end component 30; wherein, the two ends of the alternately arranged and interconnected P-type particles 28 and N-type particles 29 are respectively located on opposite sides between the first end component 26 and the second end component 30, and the other side of the first end component 26 of the plurality of thermoelectric power generation modules 25 is respectively connected to the phase change heat storage layer 24. The P-type particles 28 and N-type particles 29 located on one side of the first end component 26 or the second end component 30 are respectively equipped with positive terminals and negative terminals, and the positive terminals and negative terminals are respectively equipped with wires 31. The other side of the second end component 30 is provided with a heat sink 32.

[0130] In the embodiments of this disclosure and other possible embodiments, the two substrate materials of the first end component (hot end) 26 and the second end component (cold end) 30 are configured as aluminum oxide, the electrode 27 is configured as copper, the P-type particles 28 and N-type particles 29 are configured as bismuth telluride (BiTe), and the wire 31 is configured as Teflon; the first end component (hot end) of the thermoelectric power generation module 25 is closely connected to the surrounding walls and bottom of the phase change heat storage layer 24, and the two have the same area; the second end component (cold end) of the thermoelectric power generation module 25 is configured as a finned heat sink 32, and the fins are configured as aluminum or copper.

[0131] In the embodiments disclosed herein and other possible embodiments, the two ends of the alternately arranged and interconnected P-type particles 28 and N-type particles 29 are respectively disposed on opposite sides between the first end component (hot end) 26 and the second end component (cold end) 30. The other side of the first end component (hot end) 26 of the plurality of thermoelectric power generation modules 25 is respectively connected to the outer edge and one side of the phase change heat storage layer 24 and is tightly connected to the four sides and bottom of the phase change heat storage layer 24. The P-type particles 28 and N-type particles 29 disposed on one side of the first end component (hot end) 26 or the second end component (cold end) 30 are respectively configured with positive terminals (+) and negative terminals (-), and the positive terminals (+) and negative terminals (-) are respectively provided with wires 31. The other side of the second end component (cold end) 30 is provided with a finned heat sink 32. The P-type particles 28 and N-type particles 29 are respectively configured as columnar or quadrangular prisms.

[0132] In the embodiments disclosed herein and other possible embodiments, during daytime illumination, sunlight passes through the silica aerogel insulation layer 22 and strikes the light-receiving surface of the photovoltaic panel 23. A portion of the sunlight is converted into electrical energy by the photovoltaic panel 23, and the remainder is converted into heat. Part of the electrical energy is used to power the entire seawater desalination system, while the excess electrical energy is stored in the battery 20. The power in the battery 20 supplies power to the entire system when sunlight is insufficient. The heat converted by the photovoltaic panel 23 is absorbed by the phase change material within the phase change heat storage layer 24. The phase change material undergoes a solid-liquid phase change, storing the absorbed heat while simultaneously reducing the surface temperature of the photovoltaic panel 23, thus improving the photoelectric conversion efficiency of the photovoltaic panel. The silica aerogel insulation layer 22 serves to prevent the photovoltaic panel 23 from dissipating heat to the outside. The heat stored in the phase change thermal storage layer 24 serves as the hot-end energy source for the thermoelectric power generation module 25. Heat is transferred from the phase change thermal storage layer 24 to the thermoelectric power generation module 25 for thermoelectric power generation. The electrical energy generated by the thermoelectric power generation module 25 is stored in the battery 20. The cold end of the thermoelectric power generation module 25 is cooled by convection and radiation from the air via a finned heat sink 32, controlling its temperature and ensuring continuous power generation. The battery 20 provides power to the entire system when sunlight from the photovoltaic panel is insufficient.

[0133] This disclosure proposes a solar membrane distillation seawater desalination system to address the issues of energy supply and freshwater production efficiency. However, due to the instability of solar heating and power supply problems, the system still suffers from low freshwater production efficiency and difficulties in providing continuous power in remote areas. To address these issues, a seawater desalination method and corresponding desalination products are proposed. This invention proposes a solar membrane distillation seawater desalination system equipped with a phase change thermal storage temperature-controlled feed liquid hot water tank and a phase change thermal storage photovoltaic power generation device to ensure continuous and stable heating of the feed liquid and a continuous and stable power supply to the system. This invention fully considers energy conservation, environmental protection, and safety while solving the problems.

[0134] The membrane distillation seawater desalination system uses a full solar phase change thermal storage photovoltaic power generation device and a phase change thermal storage temperature-controlled feed liquid hot water tank, which efficiently utilizes solar energy and solves the freshwater supply problem in remote areas, impoverished areas and small islands that lack power grid supply.

[0135] To achieve continuous and stable heating of the feed liquid and increase freshwater production, this system is equipped with a phase change thermal storage and temperature control tank for the feed liquid. This allows for temperature regulation of the feed liquid entering the membrane humidifier, maintaining a stable temperature between 55-80℃. During the day, when there is sufficient sunlight, the seawater in the storage tank is heated by the solar collector. When the temperature reaches the phase change temperature of the phase change material, the material melts from a solid to a liquid state, absorbing heat from the seawater. This prevents the high temperature of the seawater from damaging the membrane material, reducing its lifespan, and increasing energy consumption. On cloudy days, at night, or when sunlight is insufficient, the solar collector cannot continuously heat the seawater, causing the seawater temperature to drop. When the seawater temperature drops to the phase change temperature of the phase change material, the material transforms from a liquid to a solid state, releasing heat into the seawater. This prevents the seawater from reducing the evaporation rate of the feed liquid due to excessively low temperatures, which would directly affect the mass transfer efficiency of the membrane module and the freshwater output. When the heat stored in the phase change material within the hot water storage tank is fully released, and the temperature sensor at the tank's outlet detects that the seawater temperature is below 55°C, the system's controller automatically activates the heating element within the tank to replenish the temperature. The heating element is powered by solar photovoltaic power generation or a battery. After heating for a period of time, when the seawater temperature reaches 80°C, the system controller automatically stops the heating element. The heat stored in the phase change material within the tank then continues to raise the seawater temperature. In this way, the seawater temperature within the storage tank is maintained between 55-80°C, avoiding energy waste while increasing freshwater production.

[0136] To ensure a continuous and stable power supply from solar energy, this system incorporates a phase-change thermal storage photovoltaic (PV) power generation device. Currently, the photoelectric conversion efficiency is typically around 20%, with the remaining 80% of solar energy being converted into heat within the PV panel, causing surface temperature rise and impacting the panel's power output efficiency. Therefore, this device adds a phase-change thermal storage layer to the backside of the PV panel to absorb surface heat and improve conversion efficiency. Simultaneously, to fully utilize the heat stored in the phase-change material, the phase-change thermal storage layer is connected to a thermoelectric power generation module as the hot end. A finned heat sink is installed at the cold end of the module, generating electricity based on the thermoelectric effect and storing it in a battery. To prevent energy waste caused by heat dissipation into the air during periods of abundant sunlight, a silica aerogel insulation layer is applied to the sun-receiving surface of the PV panel. Silica aerogel possesses high light transmittance and low thermal conductivity, exhibiting excellent insulation properties and effectively preventing heat loss from the PV panel. Sunlight shines through the silica aerogel insulation layer onto the surface of the photovoltaic panel, where it is converted into electrical energy. Part of this electricity powers the entire seawater desalination system, while the excess is stored in batteries to power the system when sunlight is insufficient.

[0137] Specifically, this membrane distillation seawater desalination system incorporates a phase change thermal storage temperature-controlled feed liquid hot water tank to regulate the temperature of the feed liquid, ensuring a continuous and stable flow of the feed liquid into the membrane humidifier at 55-80℃, thereby increasing freshwater production. Additionally, a phase change thermal storage photovoltaic power generation device is added to guarantee a stable power supply for the entire system.

[0138] Specifically, the phase change thermal storage temperature control feed liquid hot water tank includes a phase change thermal storage temperature control layer and a water tank. The phase change thermal storage temperature control layer is a composite material made of dioctyl adipate (HDODA) and modified boron nitride (BNNs) / polyvinyl alcohol (PVA) / sodium carboxymethyl cellulose (CMC) hybrid carbon aerogel. 92% of the HDODA is encapsulated within the BNNs / PVA / CMC hybrid carbon aerogel, and the phase change temperature of the composite phase change material is 55.13-80.96℃; HDODA is the original phase change material, and the BNNs / PVA / CMC hybrid carbon aerogel is the carrier for encapsulating the phase change material. HDODA is an organic solid-liquid phase change material, which has low thermal conductivity and is prone to leakage. Based on the nature of this system, to obtain clean fresh water, the encapsulation technology must efficiently prevent leakage of the phase change material. Therefore, a porous skeleton encapsulation technology is selected. Due to the capillary action of the porous skeleton, leakage of the phase change material during the melting process can be avoided. The porous skeleton encapsulation technology uses BNNs / PVA / CMC hybrid carbon aerogel as the material. BNNs / PVA / CMC hybrid carbon aerogel has high thermal conductivity, and when combined with phase change materials, it can significantly improve the thermal conductivity, mechanical properties, and thermal stability of the composite phase change material. The hot water storage tank is made of high thermal conductivity metals such as aluminum or copper.

[0139] Specifically, the phase change thermal storage photovoltaic power generation device includes an aerogel insulation layer, a photovoltaic panel, a phase change thermal storage layer, and a thermoelectric power generation module. The aerogel insulation layer is made of silica aerogel, which has high light transmittance and low thermal conductivity, making it an excellent light-transmitting and heat-insulating material. The photovoltaic panel is made of single-junction gallium arsenide, which has a photoelectric conversion efficiency of approximately 30%. The phase change material is a composite phase change material made of paraffin wax and carbon fiber; the addition of carbon fiber improves the thermal conductivity of the phase change material. The container encapsulating the phase change material uses copper, which has good thermal conductivity. The two substrates of the thermoelectric power generation module are made of alumina, the electrode material is copper, the P and N particle material is bismuth telluride (BiTe), and the wires are made of Teflon. The hot end of the thermoelectric power generation module is tightly connected to the four walls and bottom of the phase change thermal storage layer, and both have the same area. The cold end of the thermoelectric power generation module is set as a finned heat sink, with the fin material being aluminum or copper.

[0140] This invention combines membrane distillation seawater desalination with phase change temperature control and photovoltaic power generation to develop a novel, fully solar-driven seawater desalination system based on phase change thermal storage and temperature control membrane distillation and phase change thermal storage photovoltaic power generation. The phase change thermal storage photovoltaic power generation device fully utilizes solar energy to provide a continuous and stable power supply to the entire system, improving energy efficiency. Simultaneously, it utilizes the solid-liquid (endothermic) or liquid-solid (exothermic) phase change of the phase change material in the feed liquid storage tank to maintain the feed liquid temperature of the membrane humidifier within 55-80℃, increasing freshwater production. This product has broad application prospects and will generate significant social and economic benefits in terms of energy conservation and environmental protection.

[0141] In some embodiments, the functions or modules of the apparatus provided in this disclosure can be used to perform the seawater desalination method described in the above method embodiments. The specific implementation can be referred to the description of the seawater desalination method embodiments above, which will not be repeated here for the sake of brevity.

[0142] This disclosure also proposes a computer-readable storage medium storing computer program instructions that, when executed by a processor, implement the aforementioned seawater desalination method. The computer-readable storage medium may be a non-volatile computer-readable storage medium.

[0143] This disclosure also proposes an electronic device, including: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured for the aforementioned seawater desalination method. The electronic device may be provided as a terminal, a server, or other type of device.

[0144] This disclosure also proposes a computer program product, including a computer program / instructions that, when executed by a processor, implement the above-described seawater desalination method.

[0145] Figure 3 A schematic diagram of a seawater desalination system according to an embodiment of the present disclosure is shown. Figure 3 As shown, embodiments of this disclosure also propose a seawater desalination system that applies the seawater desalination method described above and / or includes the seawater desalination apparatus described above and / or includes the computer program product described above.

[0146] Figure 6 This is a block diagram illustrating an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, or other terminal.

[0147] Reference Figure 6The electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0148] Processing component 802 typically controls the overall operation of electronic device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0149] Memory 804 is configured to store various types of data to support the operation of electronic device 800. Examples of this data include instructions for any application or method operating on electronic device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0150] Power supply component 806 provides power to various components of electronic device 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 800.

[0151] Multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0152] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when electronic device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0153] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0154] Sensor assembly 814 includes one or more sensors for providing state assessments of various aspects of electronic device 800. For example, sensor assembly 814 can detect the on / off state of electronic device 800, the relative positioning of components such as the display and keypad of electronic device 800, changes in position of electronic device 800 or a component of electronic device 800, the presence or absence of user contact with electronic device 800, orientation or acceleration / deceleration of electronic device 800, and temperature changes of electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0155] Communication component 816 is configured to facilitate wired or wireless communication between electronic device 800 and other devices. Electronic device 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0156] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0157] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 804 including computer program instructions that can be executed by a processor 820 of an electronic device 800 to perform the above-described method.

[0158] Figure 7 This is a block diagram illustrating an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be provided as a server. (Refer to...) Figure 7 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by the processing component 1922. The application programs stored in memory 1932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1922 is configured to execute instructions to perform the methods described above.

[0159] Electronic device 1900 may also include a power supply component 1926 configured to perform power management of electronic device 1900, a wired or wireless network interface 1950 configured to connect electronic device 1900 to a network, and an input / output (I / O) interface 1958. Electronic device 1900 can operate on an operating system stored in memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0160] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by a processing component 1922 of an electronic device 1900 to perform the above-described method.

[0161] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0162] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0163] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0164] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0165] Various aspects of this disclosure are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0166] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0167] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.

[0168] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0169] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A method of desalination of sea water, characterized in that, The application relates to a heating mode of a heat storage water tank (2) for storing seawater. The application comprises the following steps: Real-time acquisition of environmental parameters of the heat storage water tank (2) for storing seawater, a corresponding heat storage temperature of a phase-change heat storage temperature control layer (1) arranged outside the heat storage water tank (2), and a corresponding outlet liquid temperature at an outlet (6) of the heat storage water tank (2); Determination of the heating mode of the heat storage water tank (2) according to the environmental parameters, the heat storage temperature and the outlet liquid temperature, which comprises the following steps: if the air temperature in the environmental parameters is lower than a preset air temperature, real-time acquisition of the heat storage temperature and the outlet liquid temperature; if the heat storage temperature is lower than a solid critical temperature of a phase-change material in the phase-change heat storage temperature control layer (1) and the outlet liquid temperature is lower than a first preset temperature, control of a heating assembly arranged in the heat storage water tank (2) to heat the seawater; during the heating process of the seawater, when the outlet liquid temperature rises to a second preset temperature and the heat storage temperature is higher than a liquid critical temperature of the phase-change material in the phase-change heat storage temperature control layer (1), control of the heating assembly to stop heating the seawater, and heating of the seawater by the phase-change heat storage temperature control layer (1); the above process is repeated to maintain the outlet liquid temperature between the first preset temperature and the second preset temperature; if the air temperature in the environmental parameters is higher than or equal to the preset air temperature, control of a first backflow pump (18) between the outlet of the heat storage water tank (2) and the inlet of a solar collector (17) to be started, heating of the seawater by the solar collector (17), and re-injection of the heated seawater into the heat storage water tank (2) through the inlet of the heat storage water tank (2); wherein the phase-change material of the phase-change heat storage temperature control layer (1) comprises dioctyl adipate corresponding to original phase-change material, and a carrier made of any one of hybrid carbon aerogels of modified boron nitride, polyvinyl alcohol and sodium carboxymethyl cellulose; In the heating mode, air condensation fresh water is obtained by using a membrane humidifier (7) connected with the outlet (6) and a condenser (9) connected with the membrane humidifier (7); 2. The method of desalination of seawater according to claim 1, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to an evaporation pool (13) to obtain seawater condensation fresh water. The process of heating the seawater by the solar collector (17) comprises the following steps: Acquisition of the heat storage temperature; If the heat storage temperature is lower than the solid critical temperature of the phase-change material in the phase-change heat storage temperature control layer (1), the seawater is cooled by the phase-change heat storage temperature control layer (1); 3. The method of desalination of seawater according to any one of claims 1 or 2, characterized in that, If the heat storage temperature is higher than the liquid critical temperature of the phase-change material in the phase-change heat storage temperature control layer (1), the cooling of the seawater by the phase-change heat storage temperature control layer (1) is stopped. After real-time acquisition of the air temperature in the environmental parameters, the air temperature is corrected to obtain a corrected air temperature; if the corrected air temperature is lower than a preset air temperature, the heat storage temperature and the outlet liquid temperature are acquired in real time.

4. The method of desalination of seawater according to any one of claims 1 or 2, characterized in that, The membrane humidifier (7) connected with the liquid outlet (6) and the condenser (9) connected with the membrane humidifier (7) are used to condense the air into fresh water, comprising: The fan (8) connected with the outlet of the condenser (9) and the inlet of the membrane humidifier (7) is used to inject the air with the first temperature and humidity into the membrane humidifier (7); The membrane humidifier (7) is used to heat and humidify the air with the first temperature and humidity; The condenser (9) is used to condense the air with the second temperature and humidity after heating and humidification into fresh water; The uncondensed air with the first temperature and humidity is controlled to enter the membrane humidifier (7) through the fan (8); The above process is repeated.

5. The method of desalination of sea water according to claim 3, characterized in that, The membrane humidifier (7) connected with the liquid outlet (6) and the condenser (9) connected with the membrane humidifier (7) are used to condense the air into fresh water, comprising: The fan (8) connected with the outlet of the condenser (9) and the inlet of the membrane humidifier (7) is used to inject the air with the first temperature and humidity into the membrane humidifier (7); The membrane humidifier (7) is used to heat and humidify the air with the first temperature and humidity; The condenser (9) is used to condense the air with the second temperature and humidity after heating and humidification into fresh water; The uncondensed air with the first temperature and humidity is controlled to enter the membrane humidifier (7) through the fan (8); The above process is repeated.

6. The method of desalination of sea water according to claim 4, characterized in that, The condenser (9) is used to condense the air with the second temperature and humidity after heating and humidification, comprising: The condensing agent is driven into the condenser (9) by the feed pump (10); The condensing agent is used to condense the air with the second temperature and humidity after heating and humidification into fresh water; The condensing agent is discharged from the liquid outlet (11) of the condenser (9).

7. The method of desalination of sea water according to claim 5, characterized in that, The condenser (9) is used to condense the air with the second temperature and humidity after heating and humidification, comprising: The condensing agent is driven into the condenser (9) by the feed pump (10); The condensing agent is used to condense the air with the second temperature and humidity after heating and humidification into fresh water; The condensing agent is discharged from the liquid outlet (11) of the condenser (9).

8. The method of desalination of sea water according to any one of claims 1 or 2, 5-7, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pond (13) to obtain seawater condensed fresh water, comprising: The salinity value of the condensed seawater in the membrane humidifier (7) is detected; If the salinity value is greater than or equal to the set salinity value, the valve (12) arranged on the pipeline between the outlet of the membrane humidifier (7) and the inlet of the evaporation pond (13) is controlled to open, and the condensed seawater in the membrane humidifier (7) enters the evaporation pond (13) to obtain seawater condensed fresh water.

9. The method of desalination of sea water according to claim 3, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pond (13) to obtain seawater condensed fresh water, comprising: The salinity value of the condensed seawater in the membrane humidifier (7) is detected; If the salinity value is greater than or equal to a set salinity value, a valve (12) arranged on a pipeline between an outlet of the membrane humidifier (7) and an inlet of the evaporation pool (13) is opened, and the condensed seawater in the membrane humidifier (7) enters the evaporation pool (13), thereby obtaining seawater condensed fresh water.

10. The method of desalination of sea water according to claim 4, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: detecting a salinity value of the condensed seawater in the membrane humidifier (7); If the salinity value is greater than or equal to a set salinity value, a valve (12) arranged on a pipeline between an outlet of the membrane humidifier (7) and an inlet of the evaporation pool (13) is opened, and the condensed seawater in the membrane humidifier (7) enters the evaporation pool (13), thereby obtaining seawater condensed fresh water.

11. The method of desalination of sea water according to claim 8, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: If the salinity value is less than the set salinity value, a second backflow pump (21) arranged on a pipeline between the membrane humidifier (7) and a solar collector (17) is opened, and the condensed seawater in the membrane humidifier (7) enters the solar collector (17).

12. The method of desalination of sea water according to any one of claims 9 or 10, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: If the salinity value is less than the set salinity value, a second backflow pump (21) arranged on a pipeline between the membrane humidifier (7) and a solar collector (17) is opened, and the condensed seawater in the membrane humidifier (7) enters the solar collector (17).

13. The method of desalination of sea water according to claim 8, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: The seawater in the evaporation pool (13) is heated by using a heat-absorbing material (15) arranged in the evaporation pool (13), and the fresh water is condensed by using a condensing plate (14) above the evaporation pool (13).

14. The method of desalination of sea water according to any one of claims 9-11, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: The seawater in the evaporation pool (13) is heated by using a heat-absorbing material (15) arranged in the evaporation pool (13), and the fresh water is condensed by using a condensing plate (14) above the evaporation pool (13).

15. The method of desalination of sea water according to claim 12, characterized in that, The seawater discharged from the membrane humidifier (7) is transported to the evaporation pool (13) to obtain seawater condensed fresh water, and the method further comprises: The seawater in the evaporation pool (13) is heated by using a heat-absorbing material (15) arranged in the evaporation pool (13), and the fresh water is condensed by using a condensing plate (14) above the evaporation pool (13).

16. A sea water desalination apparatus, characterized by, The method comprises: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to execute the seawater desalination method of any one of claims 1 to 15.

17. A sea water desalination apparatus, characterised in that, The method comprises: a computer readable storage medium having stored thereon computer programs / instructions, which, when executed by a processor, implement the seawater desalination method of any one of claims 1 to 15.

18. A sea water desalination apparatus, characterized by, The method comprises: A computer program product configured with computer programs / instructions which, when executed by a processor, implement the seawater desalination method of any one of claims 1-15.

19. A system for desalination of seawater, characterized in that Comprise: a first sensing mechanism, a second sensing mechanism, a third sensing mechanism, and a controller connected to the first sensing mechanism, the second sensing mechanism, and the third sensing mechanism, respectively; The first sensing mechanism is arranged outside the heat storage tank (2) and is used for real-time detection of the environmental parameters of the heat storage tank (2) for storing heated seawater; the second sensing mechanism is arranged outside the phase change heat storage temperature control layer (1) of the heat storage tank (2) and is used for real-time detection of the heat storage temperature control layer temperature corresponding to the phase change heat storage temperature control layer (1); the third sensing mechanism is arranged at the liquid outlet (6) of the heat storage tank (2) and is used for real-time detection of the liquid outlet temperature corresponding to the liquid outlet (6); The liquid outlet (6) of the heat storage tank (2) is connected to the first inlet of the membrane humidifier (7), and the first outlet of the membrane humidifier (7) is connected to the first inlet of the condenser (9); The controller is used for real-time acquisition of the environmental parameters, the heat storage temperature control layer temperature, and the liquid outlet temperature, and determination of the heating mode of the heat storage tank (2) according to the environmental parameters, the heat storage temperature control layer temperature, and the liquid outlet temperature; in the heating mode, the membrane humidifier (7) connected to the liquid outlet (6) and the condenser (9) connected to the membrane humidifier (7) are used to obtain air condensation fresh water; and the seawater discharged from the membrane humidifier (7) is transported to the evaporation pond (13) to obtain seawater condensation fresh water. The heating mode of the heat storage water tank (2) is determined according to the environmental parameter, the heat storage temperature of the temperature control layer and the outlet liquid temperature, including: if the air temperature in the environmental parameter is lower than a preset air temperature, the heat storage temperature of the temperature control layer and the outlet liquid temperature are acquired in real time; if the heat storage temperature of the temperature control layer is lower than the solid critical temperature of the phase change material in the phase change heat storage temperature control layer (1) and the outlet liquid temperature is lower than a first preset temperature, a heating assembly arranged in the heat storage water tank (2) is controlled to heat the seawater; during the heating of the seawater, when the outlet liquid temperature rises to a second preset temperature and the heat storage temperature of the temperature control layer is higher than the liquid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the heating assembly is controlled to stop heating the seawater, and the phase change heat storage temperature control layer (1) is used to heat the seawater; the above process is repeated to maintain the outlet liquid temperature between the first preset temperature and the second preset temperature; if the air temperature in the environmental parameter is higher than or equal to the preset air temperature, a first backflow pump (18) between the outlet of the heat storage water tank (2) and the inlet of the solar collector (17) is controlled to be turned on, the seawater is heated by the solar collector (17), and the heated seawater is re-injected into the heat storage water tank (2) through the inlet of the heat storage water tank (2); the phase change material of the phase change heat storage temperature control layer (1) includes dioctyl adipate corresponding to the original phase change material, and a carrier made of any one of hybrid carbon aerogels of modified boron nitride, polyvinyl alcohol and sodium carboxymethyl cellulose.

20. The system for desalination of seawater according to claim 19, characterized in that, The first outlet of the condenser (9) is connected with the second inlet of the membrane humidifier (7) through the fan (8), and the second outlet of the membrane humidifier (7) is connected with the evaporation pool (13); The controller is further configured to inject air with a first temperature and humidity into the membrane humidifier (7) through the second inlet of the membrane humidifier (7) by using the fan (8), heat and humidify the air with the first temperature and humidity by using the membrane humidifier (7), condense the heated and humidified air with a second temperature and humidity entering the first inlet of the condenser (9) by using the condenser (9) to obtain condensed fresh water, and control the uncondensed air with the first temperature and humidity to enter the membrane humidifier (7) through the fan (8) and the second inlet of the membrane humidifier (7).

21. The system for desalination of seawater according to any one of claims 19 or 20, characterized in that, The second inlet of the condenser (9) is provided with a feeding pump (10), and the second outlet of the condenser (9) is provided with a liquid outlet (11); The controller is further configured to drive a condensing agent into the condenser (9) by using the feeding pump (10), condense the heated and humidified air with the second temperature and humidity entering the condenser (9) by using the condensing agent, and discharge the condensing agent from the liquid outlet (11).

22. The system for desalination of seawater according to any one of claims 19 or 20, characterized in that, The second outlet of the membrane humidifier (7) is also provided with a salinity sensor for detecting the salinity value of the condensed seawater in the membrane humidifier (7) and a valve (12) arranged on the pipeline between the second outlet of the membrane humidifier (7) and the inlet of the evaporation pond (13). The controller is further configured to control the valve (12) to open if the salinity value is greater than or equal to a set salinity value, so that the condensed seawater in the membrane humidifier (7) enters the evaporation pond (13) to obtain seawater condensed fresh water.

23. The system for desalination of seawater of claim 21, wherein, The second outlet of the membrane humidifier (7) is also provided with a salinity sensor for detecting the salinity value of the condensed seawater in the membrane humidifier (7) and a valve (12) arranged on the pipeline between the second outlet of the membrane humidifier (7) and the inlet of the evaporation pond (13). The controller is further configured to control the valve (12) to open if the salinity value is greater than or equal to a set salinity value, so that the condensed seawater in the membrane humidifier (7) enters the evaporation pond (13) to obtain seawater condensed fresh water.

24. The system for desalination of seawater according to any one of claims 19 or 20 or 23, characterized in that, A second backflow pump (21) is arranged on the pipeline between the second outlet of the membrane humidifier (7) and the solar heat collector (17). The controller is further configured to control the second backflow pump (21) to open if the detected salinity value of the condensed seawater in the membrane humidifier (7) is less than a set salinity value, so that the condensed seawater in the membrane humidifier (7) enters the solar heat collector (17). The evaporation pond (13) is provided with a heat-absorbing material (15) for heating the seawater in the evaporation pond (13), and a condensation plate (14) is arranged above the evaporation pond (13) to condense fresh water.

25. The system for desalination of seawater of claim 21, wherein, A second backflow pump (21) is arranged on the pipeline between the second outlet of the membrane humidifier (7) and the solar heat collector (17). The controller is further configured to control the second backflow pump (21) to open if the detected salinity value of the condensed seawater in the membrane humidifier (7) is less than a set salinity value, so that the condensed seawater in the membrane humidifier (7) enters the solar heat collector (17). The evaporation pond (13) is provided with a heat-absorbing material (15) for heating the seawater in the evaporation pond (13), and a condensation plate (14) is arranged above the evaporation pond (13) to condense fresh water.

26. The system for desalination of seawater of claim 22, wherein, A second backflow pump (21) is arranged on the pipeline between the second outlet of the membrane humidifier (7) and the solar heat collector (17). The controller is further configured to control the second backflow pump (21) to open if the detected salinity value of the condensed seawater in the membrane humidifier (7) is less than a set salinity value, so that the condensed seawater in the membrane humidifier (7) enters the solar heat collector (17). The evaporation pond (13) is provided with a heat-absorbing material (15) for heating the seawater in the evaporation pond (13), and a condensation plate (14) is arranged above the evaporation pond (13) to condense fresh water.

27. The system for desalination of seawater according to any one of claims 19 or 20 or 23 or 25 or 26, characterized in that, In the process of heating the seawater by the solar collector (17), the controller is further configured to acquire the temperature of the heat storage temperature control layer; if the temperature of the heat storage temperature control layer is lower than the solid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the seawater is cooled by the phase change heat storage temperature control layer (1); and when the temperature of the heat storage temperature control layer is higher than the liquid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the cooling of the seawater by the phase change heat storage temperature control layer (1) is stopped.

28. The system for desalination of seawater of claim 21, wherein, In the process of heating the seawater by the solar collector (17), the controller is further configured to acquire the temperature of the heat storage temperature control layer; if the temperature of the heat storage temperature control layer is lower than the solid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the seawater is cooled by the phase change heat storage temperature control layer (1); and when the temperature of the heat storage temperature control layer is higher than the liquid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the cooling of the seawater by the phase change heat storage temperature control layer (1) is stopped.

29. The system for desalination of seawater of claim 22, wherein, In the process of heating the seawater by the solar collector (17), the controller is further configured to acquire the temperature of the heat storage temperature control layer; if the temperature of the heat storage temperature control layer is lower than the solid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the seawater is cooled by the phase change heat storage temperature control layer (1); and when the temperature of the heat storage temperature control layer is higher than the liquid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the cooling of the seawater by the phase change heat storage temperature control layer (1) is stopped.

30. The system for desalination of seawater of claim 24, wherein, In the process of heating the seawater by the solar collector (17), the controller is further configured to acquire the temperature of the heat storage temperature control layer; if the temperature of the heat storage temperature control layer is lower than the solid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the seawater is cooled by the phase change heat storage temperature control layer (1); and when the temperature of the heat storage temperature control layer is higher than the liquid critical temperature of the phase change material in the phase change heat storage temperature control layer (1), the cooling of the seawater by the phase change heat storage temperature control layer (1) is stopped.

31. The system for desalination of seawater according to any one of claims 19 or 20 or 23 or 25 or 26, 28-30, wherein, After acquiring the air temperature in the environment parameters in real time, the controller is further configured to correct the air temperature to obtain a corrected air temperature; and if the corrected air temperature is lower than a preset air temperature, the temperature of the heat storage temperature control layer and the outlet liquid temperature are acquired in real time.

32. The system for desalination of seawater of claim 21, wherein, After acquiring the air temperature in the environment parameters in real time, the controller is further configured to correct the air temperature to obtain a corrected air temperature; and if the corrected air temperature is lower than a preset air temperature, the temperature of the heat storage temperature control layer and the outlet liquid temperature are acquired in real time.

33. The system for desalination of seawater of claim 22, wherein, After acquiring the air temperature in the environment parameters in real time, the controller is further configured to correct the air temperature to obtain a corrected air temperature; and if the corrected air temperature is lower than a preset air temperature, the temperature of the heat storage temperature control layer and the outlet liquid temperature are acquired in real time.

34. The system for desalination of seawater of claim 24, wherein, After the air temperature in the environment parameter is acquired in real time, the controller is further used for correcting the air temperature to obtain a corrected air temperature; if the corrected air temperature is lower than a preset air temperature, the heat storage temperature control layer temperature and the liquid outlet temperature are acquired in real time.

35. The system for desalination of seawater of claim 27, wherein, After the air temperature in the environment parameter is acquired in real time, the controller is further used for correcting the air temperature to obtain a corrected air temperature; if the corrected air temperature is lower than a preset air temperature, the heat storage temperature control layer temperature and the liquid outlet temperature are acquired in real time.

36. The system for desalination of seawater according to any one of claims 19-35, characterized in that, Further comprising: A phase change heat storage photovoltaic power generation device (19) for supplying power to the system and a storage battery (20) connected thereto.

37. The system for desalination of seawater of claim 36, wherein, The phase change heat storage photovoltaic power generation device (19) comprises a silica aerogel heat insulation layer (22), a photovoltaic power generation panel (23) arranged on one side of the silica aerogel heat insulation layer (22), a phase change heat storage layer (24) arranged on one side of the photovoltaic power generation panel (23), and a thermoelectric power generation module (25) connected with the photovoltaic power generation panel (23).

38. The system for desalination of seawater of claim 37, wherein, The thermoelectric power generation module (25) comprises P-type particles (28), N-type particles (29), a first end component (26) and a second end component (30); wherein the two ends of the P-type particles (28) and the N-type particles (29) arranged alternately and connected with each other are arranged on opposite sides between the first end component (26) and the second end component (30); the other side of the first end component (26) of a plurality of thermoelectric power generation modules (25) is connected with the phase change heat storage layer (24), respectively; the P-type particles (28) and the N-type particles (29) arranged on one side of the first end component (26) or one side of the second end component (30) are respectively provided with a positive electrode terminal and a negative electrode terminal; the positive electrode terminal and the negative electrode terminal are respectively provided with a wire (31); the other side of the second end component (30) is provided with a heat sink (32).

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