Waste heat application method, system, device, controller and medium of photovoltaic curtain wall

Abstract

The present application provides a method, system, device, controller and medium for applying waste heat of a photovoltaic curtain wall. The system includes: a plurality of photovoltaic modules, the back of which is installed against a wall; the modules are installed between the back of the photovoltaic modules and the wall; a heat exchanger, which is arranged on the back of the photovoltaic modules relative to the fan; a heat exchange water pipe, one end of which is connected to the heat exchanger through the wall; a water storage tank, the other end of the heat exchange water pipe is connected to the water storage tank; a plurality of water supply pipes, each of which is also connected to an external device, and the plurality of external devices are arranged in the same smart home environment; a controller, which is electrically connected to the fan and the water storage tank, and when the photovoltaic modules are working, the fan is controlled to blow the hot air generated by the photovoltaic modules to the heat exchanger to complete the cooling of the photovoltaic modules, and the heat exchanger heats the water in the water storage tank with the heat in the hot air through the heat exchange water pipe, and the water storage tank is controlled to transport the heated water to the external device through the water supply pipe according to preset requirements to supply hot water to the external device.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and particularly to a method, system, device, controller and medium for applying the waste heat of a photovoltaic curtain wall. Background Art

[0002] With the wide application of renewable energy, the integration of photovoltaic modules in buildings has become increasingly common. As a new type of building-integrated photovoltaic technology, a photovoltaic curtain wall can not only provide clean energy for a building, but also improve the appearance and functionality of the building to a certain extent. However, a large amount of heat is generated during the power generation process of photovoltaic modules. If this heat cannot be effectively utilized, it will not only reduce the power generation efficiency of the photovoltaic modules, but also affect the temperature environment of the building wall and increase the load of refrigeration systems such as air conditioners.

[0003] Traditional photovoltaic curtain wall systems have deficiencies in dealing with the waste heat generated by photovoltaic modules. Common methods include natural heat dissipation or forced air cooling, but these methods are inefficient and do not fully utilize waste heat resources. In addition, the hot water demand in homes and office environments usually relies on electric water heaters or gas water heaters. These traditional methods not only consume a large amount of energy, but also cause environmental pollution.

[0004] In recent years, some researchers have proposed systems for using the waste heat of photovoltaic modules to heat water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and inability to accurately meet the needs of users. For example, some systems only control the opening and closing of fans through simple temperature sensors and cannot dynamically adjust the water temperature and water storage capacity according to the actual usage of users.

[0005] Therefore, there is an urgent need for a method for collecting the waste heat of a photovoltaic curtain wall to solve at least one of the above problems. Summary of the Invention

[0006] The present application provides a method, system, device, controller and medium for applying the waste heat of a photovoltaic curtain wall, aiming to solve the problems of existing systems for using the waste heat of photovoltaic modules to heat water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and inability to accurately meet the needs of users. For example, some systems only control the opening and closing of fans through simple temperature sensors and cannot dynamically adjust the water temperature and water storage capacity according to the actual usage of users.

[0007] In a first aspect, the present application provides a system for applying the waste heat of a photovoltaic curtain wall, including:

[0008] A plurality of photovoltaic modules, the back surfaces of which are mounted against a wall;

[0009] A fan, which is installed between the back surface of the photovoltaic module and the wall;

[0010] A heat exchanger, the heat exchanger is arranged on the back of the photovoltaic module relative to the fan;

[0011] A heat exchange water pipe, one end of the heat exchange water pipe is communicated with the heat exchanger through the wall;

[0012] A water storage tank, the other end of the heat exchange water pipe is communicated with the water storage tank;

[0013] Multiple water supply pipes, the water supply pipes are communicated with the water storage tank; each water supply pipe is also communicated with an external device, and a plurality of the external devices are arranged in the same smart home environment;

[0014] A controller, the controller is electrically connected to the fan and the water storage tank. When the photovoltaic module is working, the controller obtains the module temperature of the photovoltaic module; the controller generates a first fan control signal according to the module temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air; the controller obtains the historical hot water usage information of each external device, and the historical hot water usage information includes historical time, historical usage amount and historical water temperature; constructs a hot water usage prediction model according to the historical hot water usage information of each external device; the controller obtains the current water temperature, current water storage amount and current timestamp in the water storage tank to input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; the controller generates a second fan control signal and a water supply control signal according to the hot water usage amount, hot water temperature, current water temperature and current water storage amount, the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0015] In some embodiments, the controller stores the priority information of each external device, and the controller calculates the device weight of each external device according to the priority information, hot water usage amount and hot water temperature of each external device; the controller calculates the water supply control signal according to the device weight, a preset water temperature stability factor, hot water usage amount and hot water temperature; the expression of the water supply control signal includes:

[0016] ;

[0017] Wherein, is at among the The water supply control signal of an external device, , and are respectively the hot water usage amount and the device weight of the th external device, is the water temperature stability factor, which is used to ensure that the water temperature remains stable during transportation. The factor range corresponding to the water temperature stability factor is 0.8 to 1, is at the maximum hot water usage amount among the external devices. The maximum hot water usage amount corresponds to the , is the current timestamp, is the response time from the issuance of the water supply control signal to the delivery of water to the corresponding external device by the water supply pipe.

[0018] Exemplarily, the controller acquires the environmental temperature of the smart home environment; the controller calculates the device weight of each external device according to the environmental temperature, the priority information of each external device, the hot water usage amount, and the hot water temperature. The expression of the device weight includes:

[0019] ;

[0020] Wherein, , , , are respectively the device weight, the hot water usage amount, the hot water temperature, and the priority information of the th external device among the external devices, , is the environmental temperature, is at the hot water usage amount, the priority information, and the hot water temperature of the th external device among the .

[0021] In some embodiments, it further includes: a temperature sensor for detecting the water temperature in the water storage tank; wherein, the controller is electrically connected to the temperature sensor. If the water temperature is greater than the maximum tolerable water temperature corresponding to the water storage tank, the controller controls the water storage tank to adjust the water inlet flow rate of the heat exchange water pipe and adjust the working power of the fan.

[0022] Exemplarily, it further includes: a drain pipe, and the drain pipe is communicated with the water storage tank; if the water temperature is greater than the preset temperature, the controller controls the water storage tank to drain the water through the drain pipe.

[0023] Second aspect, the present application provides a method for applying waste heat of a photovoltaic curtain wall, which is used for a controller of a waste heat application system of the photovoltaic curtain wall provided in any embodiment of the present application; the method includes:

[0024] When the photovoltaic module is working, obtain the module temperature of the photovoltaic module;

[0025] Generate a first fan control signal according to the module temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air;

[0026] Obtain the historical hot water usage information of each external device, where the historical hot water usage information includes historical time, historical usage amount, and historical water temperature; construct a hot water usage prediction model according to the historical hot water usage information of each external device; obtain the current water temperature, current water storage amount, and current timestamp in the water storage tank, and input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; generate a second fan control signal and a water supply control signal according to the hot water usage amount, hot water temperature, current water temperature, and current water storage amount, where the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0027] In some embodiments, the first fan control signal includes working power; generating the first fan control signal according to the module temperature includes: obtaining the distance between the fan and the heat exchanger; obtaining the blowing area of the fan and the heat dissipation area of the heat exchanger; generating the working power according to the distance, the module temperature, the blowing area, and the heat dissipation area.

[0028] In some embodiments, generating the working power according to the distance, the module temperature, the blowing area, and the heat dissipation area includes: obtaining the module information corresponding to the photovoltaic module; the module information includes at least module size and module material; obtaining a balance coefficient according to the module information, where the balance coefficient is used to ensure that the working power can effectively balance the heat dissipation of the photovoltaic module and the demand for water heating; generating the working power according to the distance, the module temperature, the blowing area, the balance coefficient, and the heat dissipation area; the expression of the working power includes:

[0029] ;

[0030] Wherein, is the working power, is the component temperature, is the ambient temperature corresponding to the photovoltaic module, is the distance, is the blowing area, is the heat dissipation area, is the balance coefficient.

[0031] In some embodiments, before obtaining the historical hot water usage information of each external device, it further includes: obtaining the size information and material information of the water storage tank; determining the maximum tolerable water temperature corresponding to the water storage tank according to the size information and material information; judging whether the water temperature in the water storage tank is greater than the maximum tolerable water temperature; if the water temperature in the water storage tank is greater than the maximum tolerable water temperature, adjusting the inlet flow rate of the heat exchange water pipe and the working power of the fan according to the water temperature and a preset temperature, so that the water temperature in the water storage tank is less than the maximum tolerable water temperature.

[0032] In a third aspect, the present application provides a waste heat application device for a photovoltaic curtain wall, which is applied to a controller of the waste heat application system of the photovoltaic curtain wall provided in any embodiment of the present application; the device includes:

[0033] A temperature acquisition unit, configured to acquire the component temperature of the photovoltaic module when the photovoltaic module is working;

[0034] A parameter acquisition unit, configured to generate a first fan control signal according to the component temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air;

[0035] A control completion unit, configured to acquire the historical hot water usage information of each external device, where the historical hot water usage information includes historical time, historical usage amount, and historical water temperature; construct a hot water usage prediction model according to the historical hot water usage information of each external device; acquire the current water temperature, current water storage amount, and current timestamp in the water storage tank, and input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; generate a second fan control signal and a water supply control signal according to the hot water usage amount, hot water temperature, current water temperature, and current water storage amount, where the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0036] Fourthly, an embodiment of the present application provides a controller, including a memory and a processor; the memory is used for storing a computer program; the processor is used for executing the computer program and implementing the waste heat application method provided in any embodiment of the present application when executing the computer program.

[0037] Fifthly, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor is enabled to implement the waste heat application method provided in any embodiment of the present application.

[0038] The waste heat application method, system, device, controller and medium of a photovoltaic curtain wall provided by the embodiments of the present application realize the heating of hot water by comprehensively utilizing the heat generated by photovoltaic modules, and provide hot water supply for external devices in a smart home environment.

[0039] The system mainly consists of the following parts: Photovoltaic modules: Installed on the outer side of the wall, with the back against the wall. The photovoltaic modules generate heat while generating electricity. Fan: Installed between the back of the photovoltaic module and the wall, used to blow the hot air on the back of the photovoltaic module towards the heat exchanger. Heat exchanger: Set on the back of the photovoltaic module, used to transfer the heat in the hot air to the water in the heat exchange water pipe. Heat exchange water pipe: One end is connected to the inside of the wall, and the other end is connected to the water storage tank, used to transport the heated hot water to the water storage tank. Water storage tank: Used to store the heated water and supply hot water to external devices through the water supply pipe. Water supply pipe: Multiple water supply pipes connect the water storage tank and external devices, and the external devices can be water heaters, heating systems, hot water faucets, etc. in a smart home environment. Controller: Electrically connected to the fan and the water storage tank, responsible for controlling the operation of the fan, the heating and transportation of hot water, as well as the prediction and adjustment of hot water demand.

[0040] The photovoltaic module generates heat when generating electricity. Usually, this part of the heat will be wasted. In this system, this part of the heat is collected and used to heat water. The fan blows the hot air on the back of the photovoltaic module towards the heat exchanger to accelerate the heat transfer. The heat exchanger transfers the heat in the hot air to the water in the heat exchange water pipe, thereby heating the water. The heated water is stored in the water storage tank and transported to various external devices in the smart home environment through the water supply pipe. The controller constructs a hot water usage prediction model by obtaining the historical hot water usage information (such as time, usage amount, water temperature, etc.) of external devices, and predicts the future hot water demand. The controller generates a second fan control signal and a water supply control signal according to the current water temperature, water storage amount and time stamp to ensure the precise control of water temperature and hot water supply.

[0041] Furthermore, the provided system has at least the following beneficial effects:

[0042] 1. Efficient utilization of photovoltaic waste heat: The heat generated during the power generation process of photovoltaic modules is usually wasted. However, this system collects this part of the heat through fans and heat exchangers and uses it to heat water, achieving efficient energy utilization.

[0043] 2. Intelligent hot water supply: Based on the historical hot water usage information and prediction model of the controller, the system can intelligently adjust the hot water supply to meet the hot water demands of different time periods and different devices, improving the efficiency and comfort of hot water supply.

[0044] 3. Energy conservation and environmental protection: By recovering the waste heat of photovoltaic modules, this system reduces the energy consumption of traditional hot water heating methods (such as electric water heaters or gas water heaters), showing significant energy conservation and environmental protection effects.

[0045] 4. Smart home integration: The system can be seamlessly integrated with multiple external devices in the smart home environment (such as water heaters, heaters, hot water faucets, etc.). While providing hot water supply, it improves the overall intelligence level of the smart home system.

[0046] 5. Precise control: Through the precise adjustment of the controller, the system can dynamically adjust the operation of the fan and the heating of the water temperature according to different hot water demands, ensuring the accuracy and stability of hot water supply.

[0047] In summary, this system recovers the waste heat of photovoltaic modules through fans and heat exchangers, avoiding the waste of heat in traditional photovoltaic systems. Through the analysis of historical hot water usage information and the construction of a prediction model, the system can intelligently predict and control hot water supply, enhancing the user experience. The system can be integrated with multiple devices in the smart home environment to achieve intelligent distribution and supply of hot water.

[0048] Meanwhile, this system is applicable to hot water supply scenarios in the smart home environment, especially those scenarios that require efficient utilization of the waste heat of photovoltaic power generation, such as residential buildings, office buildings, hotels, etc. In addition, this system can be combined with solar water heating systems to further improve energy utilization efficiency.

[0049] This embodiment provides an efficient photovoltaic curtain wall waste heat application system. By recovering the waste heat of photovoltaic modules, it realizes the efficient heating and supply of hot water. The system has the advantages of intelligent control, energy conservation and environmental protection, and integrated design, and is applicable to hot water supply in the smart home environment, with broad application prospects.

[0050] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Description of the Drawings

[0051] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0052] Figure 1 is a schematic structural diagram of a waste heat application system of a photovoltaic curtain wall from the first perspective provided by an embodiment of the present application;

[0053] Figure 2 is a schematic structural diagram of a waste heat application system of a photovoltaic curtain wall from the second perspective provided by an embodiment of the present application;

[0054] Figure 3 is a schematic structural diagram of a waste heat application system of a photovoltaic curtain wall from the third perspective provided by an embodiment of the present application;

[0055] Figure 4 is a schematic structural diagram of a waste heat application system of a photovoltaic curtain wall from the fourth perspective provided by an embodiment of the present application;

[0056] Figure 5 is a schematic flow chart of the steps of a waste heat application method of a photovoltaic curtain wall provided by an embodiment of the present application;

[0057] Figure 6 is a schematic block diagram of the structure of a waste heat application device of a photovoltaic curtain wall provided by an embodiment of the present application;

[0058] Figure 7 is a schematic block diagram of the structure of a controller provided by an embodiment of the present application.

[0059] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Detailed implementation manners

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0061] The flow charts shown in the accompanying drawings are only illustrative examples, and do not necessarily include all the contents and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can also be decomposed, combined, or partially merged. Therefore, the actual execution order may be changed according to the actual situation.

[0062] It should be understood that, for the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that the terms such as "first" and "second" do not limit the quantity and execution order, and the terms such as "first" and "second" do not necessarily mean different.

[0063] It should be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. As used in the specification of this application and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0064] It should also be understood that the term "and / or" used in the specification of this application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0065] The following will describe in detail some embodiments of this application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0066] With the wide application of renewable energy, the integration of photovoltaic modules in buildings is becoming more and more common. As a new type of building-integrated photovoltaic technology, photovoltaic facades can not only provide clean energy for buildings, but also improve the appearance and functionality of buildings to a certain extent. However, a large amount of heat is generated during the power generation process of photovoltaic modules. If this heat cannot be effectively utilized, it will not only reduce the power generation efficiency of photovoltaic modules, but also affect the temperature environment of building walls and increase the load of refrigeration systems such as air conditioners.

[0067] Traditional photovoltaic facade systems have deficiencies in dealing with the waste heat generated by photovoltaic modules. Common methods include natural heat dissipation or forced air cooling, but these methods are inefficient and do not fully utilize waste heat resources. In addition, the hot water demand in home and office environments usually relies on electric water heaters or gas water heaters. These traditional methods not only consume a large amount of energy, but also cause environmental pollution.

[0068] In recent years, some researchers have proposed systems that use the waste heat of photovoltaic modules to heat water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and inability to accurately meet the needs of users. For example, some systems only control the opening and closing of fans through simple temperature sensors and cannot dynamically adjust the water temperature and water storage capacity according to the actual usage of users.

[0069] Therefore, there is an urgent need for a method for collecting waste heat from photovoltaic facades to solve at least one of the above problems.

[0070] Please refer to Figures 1 to 4 Figures 1 to 4 This application provides a waste heat application system for a photovoltaic curtain wall, including: a plurality of photovoltaic modules 2, the back of the photovoltaic modules 2 is installed against the wall 4; a fan 3, the fan 3 is installed between the back of the photovoltaic modules 2 and the wall 4; a heat exchanger 1, the heat exchanger 1 is arranged relative to the fan 3 on the back of the photovoltaic modules 2; a heat exchange water pipe 5, one end of the heat exchange water pipe 5 is communicated with the heat exchanger 1 through the wall 4; a water storage tank 8, the other end of the heat exchange water pipe 5 is communicated with the water storage tank 8; a plurality of water supply pipes 7, each water supply pipe 7 is communicated with the water storage tank 8; each water supply pipe 7 is also communicated with an external device, and a plurality of the external devices are arranged in the same smart home environment; a controller, the controller is electrically connected to the fan 3 and the water storage tank 8.

[0071] When the photovoltaic module is working, the controller obtains the module temperature of the photovoltaic module; the controller generates a first fan control signal according to the module temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air; the controller obtains the historical hot water usage information of each external device, and the historical hot water usage information includes historical time, historical usage amount and historical water temperature; constructs a hot water usage prediction model according to the historical hot water usage information of each external device; the controller obtains the current water temperature, current water storage amount and current timestamp in the water storage tank to input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; the controller generates a second fan control signal and a water supply control signal according to the hot water usage amount, hot water temperature, current water temperature and current water storage amount, the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0072] Specifically, the waste heat application system of the photovoltaic curtain wall includes the following main components: Photovoltaic modules 2: Installed on the outer surface of the building wall 4, responsible for absorbing solar energy and photoelectric conversion. Fan 3: Installed between the back of the photovoltaic module 2 and the wall 4, used to promote air circulation and take away the heat generated by the photovoltaic module 2 through air cooling. Heat exchanger 1: Located between the fan 3 and the back of the photovoltaic module 2, used for heat exchange between hot air and water. Heat exchange water pipe 5: Connects the wall 4 and the heat exchanger 1 to transfer heat from the heat exchanger 1 to the water storage tank 8. Water storage tank 8: Used to store the heated water and can deliver hot water to external devices according to preset requirements. Water supply pipe 7: Connects the water storage tank 8 and external devices to deliver hot water. Controller: Electrically connected to the fan 3 and the water storage tank 8, and controls the operation of the fan 3 and the water storage tank 8 according to the working state of the photovoltaic module 2 and preset requirements.

[0073] Exemplarily, the photovoltaic module can use polycrystalline or monocrystalline silicon solar panels as the photovoltaic module. These panels are installed on the outer wall of the building with their backs closely attached to the wall. Each photovoltaic module can be connected in series or parallel through wires to form a complete photovoltaic curtain wall system. While absorbing sunlight and converting it into electrical energy, the photovoltaic module generates heat. This part of the heat usually accumulates on the back of the module.

[0074] The fan uses a small DC fan and is installed between the back of each photovoltaic module and the wall. The power supply of the fan can come from the electrical energy generated by the photovoltaic module or be powered by an independent power system. The fan blows the hot air on the back of the photovoltaic module towards the heat exchanger to accelerate heat transfer. The operating speed of the fan can be dynamically adjusted by the controller according to the current temperature and hot water demand.

[0075] The heat exchanger uses an aluminum or copper heat pipe heat exchanger. There are multiple heat pipes inside the heat exchanger. One end of the heat pipe is in contact with the hot air on the back of the photovoltaic module, and the other end is in contact with the water in the heat exchange water pipe. The heat exchanger efficiently transfers the heat in the hot air to the water in the heat exchange water pipe through the heat pipes, raising the water temperature.

[0076] The heat exchange water pipe uses PVC or copper pipes with high temperature resistance and good thermal conductivity. The pipe passes through the interior of the wall and connects the heat exchanger and the water storage tank. The heat exchange water pipe transports the heated water in the heat exchanger to the water storage tank to ensure the effective transmission of hot water in the system.

[0077] The water storage tank uses a stainless steel water storage tank with good heat preservation performance. Temperature sensors and water level sensors are installed inside the water storage tank to monitor the water temperature and water storage volume. The water storage tank is used to store the heated water and delivers hot water to various external devices through the water supply pipe. The sensor data in the water storage tank is transmitted to the controller for intelligent adjustment.

[0078] The water pipe uses multiple PVC or copper water pipes, each of which connects the water tank and an external device. Solenoid valves or water pumps can be installed on the water pipes to control the delivery of hot water. The water pipes deliver hot water from the water tank to external devices such as hot water faucets, bathtubs, heating systems, etc. in the home to meet the different needs of users.

[0079] The controller uses an embedded microcontroller, such as the ARM Cortex-M series or Raspberry Pi. The controller can be connected to fans, water tanks, external devices, etc. via wired or wireless means. The controller collects data from the temperature sensor, water level sensor, and historical usage records of external devices. The controller builds a hot water usage prediction model based on historical hot water usage information (time, usage, water temperature, etc.) to predict future demand. The controller generates a second fan control signal and a water supply control signal based on the current water temperature, water storage, and timestamp. The controller controls the running speed of the fan and the switch of the solenoid valve or water pump on the water supply pipe through the output signal to ensure the accuracy and stability of the hot water supply. At the same time, the system can first ensure that the surface temperature distribution of the photovoltaic module is uniform through the first fan control signal, and then adjust the water temperature in the water tank through the fan according to the actual needs of the external device in combination with the second fan control signal. Of course, a heating / cooling device can also be installed in the water tank to link or execute the second fan control signal alone.

[0080] Assuming that the system is installed in a smart home, the following are some specific application scenario examples: Morning washing: Residents need hot water for washing in the morning. The controller predicts the demand for hot water between 7 and 8 in the morning based on historical data, and starts the fan in advance to transfer the waste heat of the photovoltaic module to the heat exchanger, and heats the water in the water tank through the heat exchange water pipe. When the water temperature reaches the preset value, the controller controls the solenoid valve on the water supply pipe to open and deliver hot water to the hot water faucet in the bathroom. Residents can get a stable supply of hot water when washing in the morning, avoiding the problems of long heating time and unstable temperature of traditional water heaters.

[0081] Noon cooking: Residents need hot water for cooking at noon. The controller predicts the kitchen's hot water demand between 11 and 12 noon, adjusts the fan speed according to the actual situation, and ensures that the water temperature in the water tank remains within a range suitable for cooking. The controller delivers hot water to the kitchen's hot water faucet or water heater through a water pipe. Residents can get the right amount of hot water at any time when cooking, which improves the convenience and comfort of cooking.

[0082] Evening Bathing: Residents need hot water for bathing in the evening. The controller predicts the hot water demand in the bathroom between 18:00 and 20:00 in the evening and ensures that the water temperature in the storage tank remains within a comfortable bathing temperature range by adjusting the fan and solenoid valve. The controller delivers the hot water to the bathtub or shower. Residents can enjoy a hot bath with a constant temperature, improving the quality of life.

[0083] Winter Heating: Residents need hot water for heating in winter. The controller predicts the hot water demand of the heating system during the sunny hours of each day in winter (such as from 10:00 am to 4:00 pm), and efficiently transfers the waste heat of the photovoltaic modules to the heat exchanger through the fan to heat the water in the storage tank. The controller delivers the hot water to the heating equipment through the water supply pipe according to the actual demand of the heating system. Residents can use the waste heat of the photovoltaic modules for heating in winter, reducing the dependence on traditional heating methods and saving energy.

[0084] From the above specific examples, it can be seen that the waste heat application system of this photovoltaic curtain wall can play an important role in multiple living scenarios. The coordinated work of each part of the system not only effectively recovers the waste heat of the photovoltaic modules, but also realizes the precise supply of hot water through intelligent control. This system has significant advantages in energy conservation and environmental protection, intelligent control and integrated design, providing an efficient and reliable hot water solution for the smart home environment.

[0085] In some embodiments, a hot water usage prediction model is constructed based on the historical hot water usage information of each external device. Flow sensors, temperature sensors and timestamp recorders are installed on each external device (such as hot water faucets, bathtubs, heating systems, etc.). The hot water usage of each external device is recorded in real time through the sensors, including the start and end times of use, the hot water usage volume and the water temperature. The collected data is stored in the local storage device or cloud storage of the controller for subsequent training and use. The collected data is cleaned, normalized and feature extracted to improve the training effect of the model. Sensor faults or abnormal data are removed, such as temperature and flow values outside the normal range. For missing data, interpolation methods or the average value of historical data can be used for filling. All data is normalized to the same range (such as 0 to 1) so that the model can better process and learn. Useful features are extracted from the original data, such as:

[0086] Time features: hours, dates, days of the week, etc. Usage features: the hot water usage volume in each time period. Water temperature features: the hot water temperature in each time period. Weather features: outdoor temperature, light intensity, etc. (which can be obtained through an external meteorological data interface).

[0087] The model can use time series prediction models such as ARIMA (Autoregressive Integrated Moving Average Model) and LSTM (Long Short-Term Memory Network), and the embodiments of this application do not limit this. By using the preprocessed data to train the prediction model and optimize the model's parameters, it can accurately predict the hot water demand. The preprocessed data is divided into a training set and a test set, usually with a ratio of 70% for the training set and 30% for the test set. According to the selected model type, initialize the parameters of the model. For example, for the LSTM model, the number of layers of the network, the number of neurons in each layer, etc. need to be set. Use the training set data to train the model. A typical training process includes the following steps: Propagate the input data (features such as time, usage, water temperature, etc.) forward through the model to generate predicted values. Calculate the loss between the predicted values and the actual values (such as mean squared error, root mean squared error, etc.). Adjust the parameters of the model through the backpropagation algorithm to minimize the loss. Repeat the forward propagation and backpropagation processes until the loss of the model reaches a preset threshold or the number of training times reaches the upper limit. Use the test set data to evaluate the performance of the model, and calculate indicators such as the prediction error and accuracy of the model. If the evaluation result is not ideal, the model parameters can be adjusted or other models can be selected for training. By further optimizing the model, improve the accuracy and stability of the prediction.

[0088] Use methods such as grid search or random search to find the best combination of hyperparameters for the model. As the user's usage habits change, the model needs to be updated and retrained regularly with the latest data to maintain the accuracy of the prediction. Deploy the trained model to the controller to achieve real-time prediction and control. For example, export the trained model into a loadable format, such as the .pb file of TensorFlow, the .pt file of PyTorch, etc. Load the model file into the controller, and the controller can perform real-time prediction by calling the model. The controller inputs the model according to the current timestamp and other features (such as the current water temperature, water storage volume, etc.) for real-time prediction, and outputs the hot water demand corresponding to the current timestamp. According to the prediction result, generate the second fan control signal and the water supply control signal to control the solenoid valve or water pump on the fan and the water supply pipe, and achieve precise hot water supply.

[0089] In some embodiments, the controller stores the priority information of each external device, and the controller calculates the device weight of each external device according to the priority information of each external device, the hot water usage amount, and the hot water temperature; the controller calculates the water supply control signal according to the device weight, the preset water temperature stability factor, the hot water usage amount, and the hot water temperature; the expression of the water supply control signal includes:

[0090] ;

[0091] Where is at the water supply control signal of the th external device among a plurality of external devices, , and are respectively the hot water usage amount and the device weight of the th external device, is the water temperature stability factor, which is used to ensure that the water temperature remains stable during transportation. The factor range corresponding to the water temperature stability factor is from 0.8 to 1, is at the maximum hot water usage amount among a plurality of external devices, and the maximum hot water usage amount corresponds to the th external device, , is the current timestamp, is the response time from when the water supply control signal is sent until the water is transported to the corresponding external device through the water supply pipe.

[0092] Furthermore, not only the comprehensive weight of each device is considered, but also the water temperature stability factor and the response time are introduced. The water temperature stability factor ensures that the water temperature does not change significantly during transportation, while the response time is used to smooth the control signal and avoid control fluctuations caused by too long response time. is an exponentially decaying term that takes into account the system response time, ensuring that the control signal gradually stabilizes as the response time increases.

[0093] Exemplarily, the controller obtains the environmental temperature of the smart home environment; the controller calculates the device weight of each external device according to the environmental temperature, the priority information of each external device, the hot water usage amount, and the hot water temperature. The expression of the device weight includes:

[0094] ;

[0095] wherein, , , , are respectively the device weight, the hot water usage amount, the hot water temperature, and the priority information of the th external device among a plurality of external devices, , is the environmental temperature, is at the hot water usage amount, the priority information, and the hot water temperature of the th external device among a plurality of external devices, . Furthermore, the weights of each external device can be intelligently adjusted.

[0096] In some embodiments, it further includes: a temperature sensor for detecting the water temperature in the water storage tank 8; wherein, the controller is electrically connected to the temperature sensor, and if the water temperature is greater than the maximum tolerable water temperature corresponding to the water storage tank 8, the controller controls the water storage tank 8 to adjust the water inlet flow rate of the heat exchange water pipe 5 and adjust the operating power of the fan 3.

[0097] The temperature sensor is installed in the water storage tank 8 and is used to detect the water temperature in the water storage tank 8 in real time. The controller is electrically connected to the temperature sensor and intelligently adjusts the water inlet flow rate of the heat exchange water pipe 5 and the operating power of the fan 3 according to the water temperature data in the water storage tank 8. The temperature sensor continuously detects the water temperature in the water storage tank 8 and transmits the data to the controller. The controller judges whether the water temperature in the water storage tank 8 exceeds the preset maximum tolerable water temperature threshold. If the water temperature in the water storage tank 8 exceeds the maximum tolerable water temperature, the controller will adjust the water inlet flow rate of the heat exchange water pipe 5 to increase the inflow of cold water to quickly reduce the water temperature in the water storage tank 8. At the same time, the controller will adjust the operating power of the fan 3 according to the water temperature situation in the water storage tank 8 to increase the air volume and further improve the heat dissipation effect.

[0098] By monitoring the water temperature in the water storage tank 8 in real time and making adjustments when the water temperature exceeds the maximum tolerable water temperature, it can effectively prevent the water in the water storage tank 8 from overheating, thereby protecting the water storage tank 8 and the connected external devices and avoiding equipment damage caused by high temperature. Through intelligent control, it ensures that the water storage tank 8 and the external devices always operate within a safe temperature range, extending the service life of the equipment.

[0099] The intelligent linkage of the temperature sensor and the controller enables the system to dynamically adjust the heat dissipation effect under different environmental conditions, ensuring the stable operation of the system. By adjusting the water inlet flow rate and the power of the fan 3, the waste heat generated by the photovoltaic module 2 can be utilized more efficiently, improving the overall energy efficiency of the system.

[0100] When the water temperature in the water storage tank 8 exceeds the safety threshold, the controller will immediately take measures to prevent accidents caused by excessive water temperature. The intelligent control system can detect and handle high-temperature problems in a timely manner, reducing safety hazards caused by high temperature. Through intelligent adjustment, the water temperature and heat dissipation effect can be controlled more precisely, reducing unnecessary energy waste. The system can continuously optimize the control strategy according to the actual operation data, further improving the energy utilization efficiency and reducing carbon emissions. Through intelligent control, the equipment maintenance and replacement costs caused by high temperature are reduced, while the system operation is optimized, the energy consumption is reduced, and the operation cost is saved. Intelligent control enables the system to operate efficiently under various environmental conditions, improving the overall performance and reliability of the system.

[0101] In summary, by adding the intelligent linkage function of the temperature sensor and the controller, the real-time monitoring and dynamic adjustment of the water temperature in the water storage tank 8 are realized. This not only protects the water storage tank 8 and external devices, extends the service life of the devices, but also improves the stability and efficiency of the system, further optimizes the energy utilization, and conforms to the concepts of green buildings and sustainable development. This embodiment provides a more intelligent and efficient working method for the photovoltaic curtain wall waste heat application system, and has important practical application value.

[0102] Exemplarily, it further includes: a drain pipe 6, and the drain pipe 6 is communicated with the water storage tank 8; if the water temperature is greater than a preset temperature, the controller controls the water storage tank 8 to drain water through the drain pipe 6.

[0103] The drain pipe 6 is communicated with the water storage tank 8 and is used for draining water when the water temperature exceeds the preset temperature. The controller is electrically connected to the drain pipe 6 and the temperature sensor, and intelligently controls the opening and closing of the drain pipe 6 according to the water temperature data in the water storage tank 8.

[0104] The temperature sensor continuously detects the water temperature in the water storage tank 8 and transmits the data to the controller. The controller judges whether the water temperature in the water storage tank 8 exceeds the preset maximum allowable water temperature threshold. If the water temperature in the water storage tank 8 exceeds the maximum allowable water temperature, the controller will first adjust the water inlet flow rate of the heat exchange water pipe 5 to increase the inflow of cold water to quickly reduce the water temperature in the water storage tank 8. At the same time, the working power of the fan 3 is adjusted to increase the air volume and improve the heat dissipation effect. If the water temperature still cannot be reduced to the safe range by adjusting the water inlet flow rate and the power of the fan 3, the controller will further control the opening of the drain pipe 6 in the water storage tank 8 to drain the overheated water. During the drainage process, the system will automatically supplement cold water through the water inlet pipe to maintain the water level in the water storage tank 8 and the normal operation of the system.

[0105] By timely opening the drain pipe 6 to drain the overheated water, it can effectively prevent the water temperature in the water storage tank 8 from being too high and avoid damage to the equipment due to high temperature. Ensure that the water storage tank 8 and the connected external devices always work within a safe temperature range, and extend the service life of the devices.

[0106] On the basis of adjusting the water inlet flow rate and the power of the fan 3, the opening function of the drain pipe 6 is added to form a multiple protection mechanism to ensure the safe operation of the system in extreme cases. The intelligent control system can timely detect and handle high-temperature problems, reduce safety hazards caused by high temperature, and improve the overall safety of the system.

[0107] When the water temperature exceeds the preset threshold, the water temperature in the storage tank 8 can be rapidly reduced by draining and replenishing water, ensuring that the system can operate efficiently even under high-temperature conditions. The controller can dynamically adjust the water inlet flow rate, the power of the fan 3, and the draining operation according to the actual water temperature data, enabling the system to maintain the optimal operating state under different environmental conditions. Through intelligent control, the water temperature and heat dissipation effect can be managed more precisely, reducing unnecessary energy waste and further reducing carbon emissions. The system can continuously optimize the control strategy based on the actual operating data, improve energy utilization efficiency, and conform to the concepts of green buildings and sustainable development.

[0108] Through intelligent control and multiple protection mechanisms, the equipment repair and replacement costs caused by high temperature are reduced. At the same time, the system operation is optimized, energy consumption is reduced, and operating costs are saved. Intelligent control enables the system to operate efficiently under various environmental conditions, improves the overall performance and reliability of the system, and further enhances the market value of the building.

[0109] In summary, by adding the drain pipe 6 and its intelligent control function, multiple protection and rapid adjustment of the water temperature in the storage tank 8 are achieved. This not only further protects the storage tank 8 and the connected external equipment, improves the safety and reliability of the system, but also optimizes the operating efficiency of the system, meeting the requirements of green buildings and sustainable development. This example provides a more comprehensive and intelligent solution for the photovoltaic curtain wall waste heat application system, with important practical application value.

[0110] In some embodiments, the heat exchanger 1 is a finned heat exchanger, and the number of fins of the finned heat exchanger is positively correlated with the number of photovoltaic modules 2, the heat generation power of the photovoltaic modules 2, and the rated power of the fan 3.

[0111] The finned heat exchanger consists of multiple fins, and the fins increase the heat exchange area and improve the heat exchange efficiency. The finned heat exchanger is installed between the back of the photovoltaic module 2 and the wall 4. The fan 3 blows hot air towards the finned heat exchanger, and the heat in the hot air is transferred to the water through the fins. The more photovoltaic modules 2 there are, the more heat is generated, so more fins are needed to improve the heat exchange efficiency. Photovoltaic modules 2 with a large heat generation power will generate more heat, and the number of fins also needs to be increased to cope with the higher heat load. The higher the rated power of the fan 3, the greater the air flow rate and velocity, and the heat exchange efficiency will also increase. Therefore, more fins are also needed to make full use of the cooling capacity of the fan 3.

[0112] The controller dynamically adjusts the working power of the fan 3 and the heat exchange efficiency of the finned heat exchanger according to the surface temperature of the photovoltaic module 2 and the water temperature in the storage tank 8 monitored in real time. By optimizing the number of fins, it is ensured that efficient heat exchange can be carried out under different working conditions.

[0113] The fins of the finned heat exchanger greatly increase the heat exchange area, improving the heat transfer efficiency between hot air and water. By optimizing the number of fins, the system can dynamically adjust the heat exchange efficiency according to the number and heat generation power of the photovoltaic modules 2, as well as the cooling capacity of the fans 3, ensuring efficient heat dissipation under different working conditions.

[0114] The high-efficient heat exchange capacity of the finned heat exchanger can take away the heat on the surface of the photovoltaic modules 2 more quickly, protecting the photovoltaic modules 2 from the influence of high temperature and increasing their service life. By increasing the number of fins, the water temperature in the water storage tank 8 is always kept within a safe range, thus protecting the water storage tank 8 and the connected external devices. Furthermore, based on the fans 3 and the heat exchange water pipes 5, an optimized design of the finned heat exchanger is added, forming a multi-stage heat dissipation and heat energy recovery mechanism, improving the stability and reliability of the system. The controller can dynamically adjust the working state of the finned heat exchanger according to real-time data, ensuring that the system can operate efficiently under various environmental conditions.

[0115] In summary, by adopting a finned heat exchanger and optimizing the number of its fins, the efficient recovery and utilization of the waste heat of the photovoltaic modules 2 are realized. This not only improves the heat exchange efficiency, protects the photovoltaic modules 2 and the connected external devices, but also improves the stability and reliability of the system, meeting the concepts of green buildings and sustainable development. This embodiment provides a more efficient and intelligent solution for the waste heat application system of the photovoltaic curtain wall, having important practical application value.

[0116] Please refer to Figure 5 , the waste heat application method of the photovoltaic curtain wall provided by this application is used for the controller of the waste heat application system of the photovoltaic curtain wall provided by any embodiment of this application, and the controller can be an MCU.

[0117] As Figure 5 shown, the provided waste heat application method of the photovoltaic curtain wall includes steps S101 to S103. Details are as follows:

[0118] Step S101. When the photovoltaic modules are working, obtain the module temperature of the photovoltaic modules.

[0119] Specifically, install temperature sensors (such as thermocouples, thermal resistors, etc.) on the surface or back of the photovoltaic modules. The controller collects the temperature data of the photovoltaic modules in real time through electrical connection with the temperature sensors. The temperature sensors convert the collected temperature signals into electrical signals (such as voltage, current, etc.) and transmit them to the controller, and the controller processes the received electrical signals to obtain specific temperature values.

[0120] Exemplarily, if a thermocouple sensor is used, it has a fast response speed and high accuracy. A plurality of thermocouple sensors are evenly distributed on the back of the photovoltaic module to comprehensively monitor the temperature of the module. The controller collects temperature data every 5 minutes to ensure real-time performance and accuracy.

[0121] By obtaining the temperature of the photovoltaic module in real time, the rapid response and precise control of the system are ensured. By monitoring the temperature, it can be timely detected whether the photovoltaic module is overheated, and measures can be taken in advance to avoid failures. The temperature data can provide a basis for subsequent control strategies, improving the overall operating efficiency and reliability of the system.

[0122] Step S102. Generate a first fan control signal according to the module temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air.

[0123] Specifically, by presetting a plurality of temperature thresholds in the controller, corresponding first fan control signals are generated according to different temperature ranges. The controller generates control parameters such as the rotation speed and air volume of the fan according to the actual temperature of the photovoltaic module. The generated control parameters are sent to the fan to control the working state of the fan and blow the hot air generated by the photovoltaic module to the heat exchanger for heat exchange.

[0124] For example, three temperature thresholds are set: 60°C, 70°C, and 80°C. At 60°C: the fan runs at a low speed. At 70°C: the fan runs at a medium speed. At 80°C: the fan runs at a high speed. When the temperature sensor detects that the module temperature is 75°C, the controller generates control parameters for medium-speed operation and sends the parameters to the fan.

[0125] Dynamically adjusting the rotation speed and air volume of the fan according to the module temperature can more efficiently take away the heat on the surface of the photovoltaic module. Avoid the fan running at full speed when high rotation speed is not required, thus saving energy consumption. Through effective temperature control, the performance degradation and failures of the photovoltaic module caused by high temperature are reduced, and the service life of the system is extended.

[0126] Step S103. Obtain the historical hot water usage information of each external device. The historical hot water usage information includes historical time, historical usage amount, and historical water temperature. Construct a hot water usage prediction model based on the historical hot water usage information of each external device. Obtain the current water temperature, current water storage amount, and current timestamp in the water storage tank, and input the current timestamp into the hot water usage prediction model. The hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information. The current hot water usage information includes hot water usage amount and hot water temperature. Generate a second fan control signal and a water supply control signal based on the hot water usage amount, hot water temperature, current water temperature, and current water storage amount. The second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0127] Specifically, the historical hot water usage information includes historical time, historical usage amount, and historical water temperature. These data are usually collected by sensors and stored in the local storage or cloud storage of the controller. Prediction model construction: Time series analysis, machine learning, or deep learning methods can be used to construct a hot water usage prediction model. The model includes any one of ARIMA, LSTM, and random forest. By obtaining the historical hot water usage information of each external device, constructing a hot water usage prediction model, and generating control signals based on the current time and the state of the water storage tank, intelligent control of hot water supply is achieved. The prediction model based on historical data can more accurately predict the hot water demand of users, avoid overheating or insufficient supply, and improve the energy efficiency of the system. Dynamically adjust the fan speed and water supply path according to the prediction results to ensure that the water temperature in the water storage tank remains within a suitable range and meet the hot water demand of users. Through intelligent control, users can obtain constant-temperature hot water at the required moment, improving the convenience and comfort of life. Through precise waste heat utilization and hot water supply, the dependence on traditional hot water heating methods is reduced, and energy consumption and environmental pollution are decreased.

[0128] In summary, through the detailed implementation of steps S101 to S103, the photovoltaic curtain wall waste heat application system can achieve efficient recovery and intelligent management of the waste heat of photovoltaic modules, not only improving the power generation efficiency of photovoltaic modules, but also improving the user experience and energy conservation and environmental protection effects through intelligent hot water supply. The application of this system in the smart home environment provides users with an efficient, reliable, and comfortable hot water solution.

[0129] In some embodiments, the first fan control signal includes a working power. The generating the first fan control signal according to the component temperature includes: obtaining the distance between the fan and the heat exchanger; obtaining the blowing area of the fan and the heat dissipation area of the heat exchanger; generating the working power according to the distance, the component temperature, the blowing area, and the heat dissipation area.

[0130] By considering the distance between the fan and the heat exchanger, the blowing area and the heat dissipation area, the precise fan operating power is generated to ensure the maximum heat dissipation effect. By dynamically adjusting the fan operating power according to the actual temperature of the photovoltaic module, the heat on the surface of the photovoltaic module can be more efficiently removed to prevent the temperature from being too high. Reasonable operating power settings can avoid excessive fan operation, reduce energy waste, and improve the overall energy efficiency of the system. By accurately controlling the fan's operating power, unnecessary wear is reduced and the service life of the fan and heat exchanger is extended. Dynamically adjusting the fan's operating power can effectively control the temperature fluctuation of the photovoltaic module and ensure that the system can operate stably under various working conditions. Through more refined control, equipment failures caused by excessive temperature are reduced and the reliability of the system is improved.

[0131] It should be noted that, compared with the first fan, the second fan control signal needs to consider the hot water temperature and the current water temperature as the main control parameters. Different from the goal of the first fan control signal, the present application first uses the first fan control signal to evenly reduce the overall temperature of the photovoltaic module, and then uses the second fan control signal to adjust the water temperature in the water tank. Of course, a temperature control device can also be placed directly in the water tank to control the water temperature by the temperature control device alone / in conjunction with the fan. The present application embodiment does not limit this.

[0132] In some embodiments, the generating of the working power according to the distance, the component temperature, the blowing area and the heat dissipation area includes: obtaining component information corresponding to the photovoltaic component; the component information includes at least component size and component material; obtaining a balance coefficient according to the component information, the balance coefficient is used to ensure that the working power can effectively balance the heat dissipation of the photovoltaic component and the water heating requirements; generating the working power according to the distance, the component temperature, the blowing area, the balance coefficient and the heat dissipation area; the expression of the working power includes:

[0133] ;

[0134] in, is the working power, is the component temperature, is the ambient temperature corresponding to the photovoltaic module, is the distance, is the blowing area, is the heat dissipation area, is the balance coefficient.

[0135] The balance coefficient takes into account the size and material properties of the photovoltaic modules, ensuring that the working power of the fan can precisely match the heat dissipation requirements of the photovoltaic modules. By optimizing the working power, the fan can more effectively blow the heat generated by the photovoltaic modules towards the heat exchanger, preventing overheating. The balance coefficient ensures that the working power of the fan not only meets the heat dissipation requirements of the photovoltaic modules but also can effectively transfer the heat to the water in the water storage tank, achieving efficient energy recovery. By precisely controlling the working power of the fan, the water temperature in the water storage tank can be more stable, providing a more reliable hot water supply. The balance coefficient can be adjusted according to photovoltaic modules of different sizes and materials, enabling the system to adapt to different types of photovoltaic modules. The system can dynamically adjust the working power of the fan based on factors such as the ambient temperature, component temperature, and distance between the fan and the heat exchanger, improving the flexibility and adaptability of the system.

[0136] In this embodiment, by introducing the size and material properties of the photovoltaic modules, a balance coefficient is calculated to further optimize the method for generating the working power of the fan. This not only improves the heat dissipation effect and thermal energy recovery efficiency of the system but also enhances the adaptability and safety of the system, conforming to the concepts of green buildings and sustainable development. This embodiment provides a more intelligent and efficient solution for the waste heat application system of the photovoltaic curtain wall, with important practical application value.

[0137] In some embodiments, before obtaining the historical hot water usage information of each of the external devices, it further includes: obtaining the size information and material information of the water storage tank; determining the maximum tolerable water temperature corresponding to the water storage tank according to the size information and material information; judging whether the water temperature in the water storage tank is greater than the maximum tolerable water temperature; if the water temperature in the water storage tank is greater than the maximum tolerable water temperature, adjusting the inlet water flow rate of the heat exchange water pipe and the working power of the fan according to the water temperature and a preset temperature so that the water temperature in the water storage tank is less than the maximum tolerable water temperature.

[0138] By real-time monitoring and dynamically adjusting the water temperature of the water storage tank, it can effectively prevent the water temperature in the water storage tank from exceeding its maximum tolerable water temperature, avoiding damage to the water storage tank and external devices due to high temperature. The service life of the water storage tank and external devices is extended, and the maintenance and replacement costs are reduced. By adjusting the inlet water flow rate of the heat exchange water pipe and the working power of the fan, the water temperature of the water storage tank can be more precisely controlled to ensure that the water temperature is within a safe range while maximizing the thermal energy recovery efficiency. The water temperature in the water storage tank is more stable, providing a more reliable hot water supply.

[0139] The system can dynamically adjust the control strategy according to different sizes and material characteristics of the water storage tank, being applicable to different types of water storage tanks and application scenarios. When the water temperature in the water storage tank exceeds the threshold, the system can respond quickly and take measures to reduce the water temperature, improving the real-time performance and flexibility of the system.

[0140] In summary, by adding protective measures for the temperature of the water storage tank, it is ensured that the water temperature in the water storage tank does not exceed its maximum tolerable water temperature. This not only improves the safety of the system, but also optimizes the heat energy recovery efficiency, and enhances the flexibility and reliability of the system. This embodiment provides a more intelligent and safe solution for the photovoltaic curtain wall waste heat application system, with important practical application value and the effect of improving user satisfaction.

[0141] Exemplarily, adjusting the inlet water flow rate of the heat exchange water pipe according to the water temperature and the preset temperature and controlling the working power of the fan to adjust further includes: generating the drainage flow rate corresponding to the drainage pipe according to the water temperature and the preset temperature; adjusting the inlet water flow rate of the heat exchange water pipe according to the water temperature and the preset temperature; adjusting the working power of the fan according to the water temperature and the preset temperature; controlling the water storage tank to drain water from the drainage pipe according to the drainage flow rate.

[0142] By dynamically adjusting the inlet water flow rate, the working power of the fan, and the drainage flow rate, it is possible to effectively prevent the water temperature in the water storage tank from exceeding its maximum tolerable water temperature, and avoid equipment damage due to high temperature. The service life of the water storage tank and external equipment is extended, and the maintenance and replacement costs are reduced. By comprehensively adjusting the inlet water flow rate, the working power of the fan, and the drainage flow rate, the water temperature of the water storage tank can be controlled more precisely, ensuring that the water temperature is within a safe range while maximizing the heat energy recovery efficiency. The water temperature in the water storage tank is more stable, providing a more reliable hot water supply.

[0143] By further introducing the dynamic adjustment of the drainage flow rate and combining it with the adjustment of the inlet water flow rate and the working power of the fan, a comprehensive water storage tank temperature protection mechanism is formed. This not only improves the safety of the system, ensuring that the water temperature in the water storage tank does not exceed its maximum tolerable water temperature, but also optimizes the heat energy recovery efficiency, and enhances the flexibility and reliability of the system. It provides a more intelligent and safe control method for the photovoltaic curtain wall waste heat application system, with significant practical application value and the effect of improving user satisfaction.

[0144] Please refer to Figure 6 as shown Figure 6 is a schematic structural diagram of a waste heat application device 200 of a photovoltaic curtain wall provided by an embodiment of the present application. The waste heat application device 200 of the photovoltaic curtain wall is used to execute the steps of the waste heat application method of the photovoltaic curtain wall shown in the above embodiments. The waste heat application device 200 of the photovoltaic curtain wall can be a single server or a server cluster, or the waste heat application device 200 of the photovoltaic curtain wall can be a terminal, and the terminal can be a handheld terminal, a laptop computer, a wearable device, or a robot, etc.

[0145] As Figure 6 shown, the waste heat application device 200 of the photovoltaic curtain wall includes:

[0146] A temperature acquisition unit 201, configured to acquire the component temperature of the photovoltaic module when the photovoltaic module is operating;

[0147] A parameter acquisition unit 202, configured to generate a first fan control signal according to the component temperature, so as to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air;

[0148] A control completion unit 203, configured to acquire the historical hot water usage information of each external device, where the historical hot water usage information includes historical time, historical usage amount, and historical water temperature; construct a hot water usage prediction model according to the historical hot water usage information of each external device; acquire the current water temperature, current water storage amount, and current timestamp in the water storage tank, so as to input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; generate a second fan control signal and a water supply control signal according to the hot water usage amount, hot water temperature, current water temperature, and current water storage amount, where the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0149] It should be noted that those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described waste heat application device of the photovoltaic curtain wall and each module can refer to the corresponding processes in the embodiments of the waste heat application method of the photovoltaic curtain wall described in the above embodiments, and will not be elaborated here.

[0150] The above waste heat application method of the photovoltaic curtain wall can be implemented in the form of a computer program, and the computer program can run on a device as shown in Figure 6 shown.

[0151] Please refer to Figure 7 , Figure 7 which is a schematic block diagram of the structure of the controller provided by the embodiment of the present application. The controller includes a processor, a memory, and a network interface connected through a device bus. Among them, the memory may include a storage medium and an internal memory.

[0152] The storage medium can store an operating device and a computer program. The computer program includes program instructions, and when the program instructions are executed, the processor can execute any waste heat application method of the photovoltaic curtain wall.

[0153] The processor is used to provide computing and control capabilities to support the operation of the entire controller.

[0154] The internal memory provides an environment for the operation of a computer program in a non-volatile storage medium. When the computer program is executed by the processor, the processor can execute any one of the waste heat application methods for a photovoltaic curtain wall.

[0155] The network interface is used for network communication, such as sending assigned tasks, etc. Those skilled in the art can understand that Figure 7 The structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the terminal to which the solution of this application is applied. The specific controller may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0156] It should be understood that the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0157] Among them, in one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps:

[0158] When the photovoltaic module is working, obtain the module temperature of the photovoltaic module;

[0159] Generate a first fan control signal according to the module temperature to control the fan to blow the hot air generated by the photovoltaic module to the heat exchanger to complete the cooling of the photovoltaic module, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe with the heat in the hot air;

[0160] Obtain the historical hot water usage information of each of the external devices, where the historical hot water usage information includes historical time, historical usage amount, and historical water temperature; construct a hot water usage prediction model based on the historical hot water usage information of each of the external devices; obtain the current water temperature, current water storage amount, and current timestamp in the water storage tank, and input the current timestamp into the hot water usage prediction model, where the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage amount and hot water temperature; generate a second fan control signal and a water supply control signal based on the hot water usage amount, hot water temperature, current water temperature, and current water storage amount, where the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be transported to the corresponding external device through the water supply pipe.

[0161] The present application also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the processor is caused to implement the steps of the method for applying waste heat of a photovoltaic curtain wall provided in any embodiment of the present application.

[0162] Among them, the computer-readable storage medium may be an internal storage unit of the controller described in the foregoing embodiments, such as the hard disk or memory of the controller. The computer-readable storage medium may also be an external storage device of the controller, such as a plug-in hard disk equipped on the controller, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc.

[0163] It should be noted that those skilled in the art can clearly understand that for the convenience and brevity of description, the specific structure of the ultra-thin high-temperature colored glaze glass with high flatness described above can refer to the corresponding processes in the embodiments of the method for processing ultra-thin high-temperature colored glaze glass with high flatness described in the foregoing embodiments, and will not be elaborated here.

[0164] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present application, and these modifications or substitutions should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A waste heat application system for a photovoltaic curtain wall, characterized in that: include: A plurality of photovoltaic modules, wherein the back of the photovoltaic modules is installed against the wall; A fan, wherein the fan is installed between the back side of the photovoltaic module and the wall; A heat exchanger, the heat exchanger being arranged on the back side of the photovoltaic assembly relative to the fan; A heat exchange water pipe, one end of which is connected to the heat exchanger through the wall; A water storage tank, the other end of the heat exchange water pipe is connected to the water storage tank; A plurality of water delivery pipes, each of which is connected to the water storage tank; each of which is also connected to an external device, and the plurality of external devices are arranged in the same smart home environment; A controller, wherein the controller is electrically connected to the fan and the water tank, and when the photovoltaic assembly is working, the controller obtains the assembly temperature of the photovoltaic assembly; the controller generates a first fan control signal according to the assembly temperature to control the fan to blow the hot air generated by the photovoltaic assembly to the heat exchanger to complete the cooling of the photovoltaic assembly, and the heat exchanger heats the water in the water tank with the heat in the hot air through the heat exchange water pipe; the controller obtains the historical hot water usage information of each of the external devices, and the historical hot water usage information includes the historical time, the historical usage amount and the historical water temperature; a hot water usage prediction model is constructed according to the historical hot water usage information of each of the external devices; the controller obtains the current water temperature, the current water storage amount and the current timestamp in the water tank, and inputs the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes the hot water usage amount and the hot water temperature; The controller generates a second fan control signal and a water supply control signal according to the hot water usage, hot water temperature, current water temperature and current water storage capacity. The second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be delivered to the corresponding external device through the water supply pipe.

2. The waste heat utilization system according to claim 1, characterized in that: The controller stores priority information of each of the external devices, and the controller calculates a device weight of each of the external devices according to the priority information of each of the external devices, the hot water usage, and the hot water temperature; The controller calculates the water delivery control signal according to the device weight, the preset water temperature stability factor, the hot water usage and the hot water temperature; The expression of the water supply control signal includes: ; in, For External device Water supply control signal of an external device, , and Respectively The hot water usage and device weight of each external device, is the water temperature stabilization factor, which is used to ensure that the water temperature remains stable during transportation. The water temperature stabilization factor corresponds to a factor range of 0.8 to 1. For The maximum amount of hot water used in the external device corresponds to the external devices, , is the current timestamp, It is the response time from when the water delivery control signal is sent to when the water delivery pipe delivers water to the corresponding external device.

3. The waste heat utilization system according to claim 2, characterized in that: The controller obtains the ambient temperature of the smart home environment; the controller calculates the device weight of each external device according to the ambient temperature, priority information of each external device, hot water usage and hot water temperature, and the expression of the device weight includes: ; in, , , , Respectively in External device The device weight, hot water usage, hot water temperature and priority information of each external device. , is the ambient temperature, For External device hot water usage, priority information and hot water temperature of each external device, .

4. The waste heat utilization system according to claim 1, characterized in that: Also includes: A temperature sensor, used to detect the water temperature in the water storage tank; Wherein, the controller is electrically connected to the temperature sensor. If the water temperature is greater than the maximum water temperature corresponding to the water tank, the controller controls the water tank to adjust the water inlet flow of the heat exchange water pipe and adjust the working power of the fan.

5. The waste heat utilization system according to claim 4, characterized in that: Also includes: a drain pipe, the drain pipe being in communication with the water storage tank; If the water temperature is greater than a preset temperature, the controller controls the water storage tank to discharge the water through the drain pipe.

6. A method for utilizing waste heat of a photovoltaic curtain wall, characterized in that: A controller for a waste heat utilization system according to any one of claims 1 to 5; the method comprising: When the photovoltaic module is working, obtaining the module temperature of the photovoltaic module; Generate a first fan control signal according to the component temperature to control the fan to blow the hot air generated by the photovoltaic component to the heat exchanger to cool the photovoltaic component, and the heat exchanger heats the water in the water tank through the heat exchange water pipe with the heat in the hot air; Obtain historical hot water usage information of each of the external devices, the historical hot water usage information including historical time, historical usage and historical water temperature; construct a hot water usage prediction model based on the historical hot water usage information of each of the external devices; obtain the current water temperature, current water storage and current timestamp in the water storage tank, so as to input the current timestamp into the hot water usage prediction model, the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage and hot water temperature; generate a second fan control signal and a water supply control signal based on the hot water usage, hot water temperature, current water temperature and current water storage, the second fan control signal being used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal being used to control the heated water to be delivered to the corresponding external device through the water supply pipe.

7. The method according to claim 6, characterized in that The first fan control signal includes operating power; and generating the first fan control signal according to the component temperature includes: Obtaining the distance between the fan and the heat exchanger; Obtaining the blowing area of ​​the fan and the heat dissipation area of ​​the heat exchanger; The operating power is generated according to the distance, the component temperature, the blowing area and the heat dissipation area.

8. The method according to claim 7, characterized in that The generating the working power according to the distance, the component temperature, the blowing area and the heat dissipation area includes: Acquire component information corresponding to the photovoltaic component; the component information at least includes component size and component material; Acquire a balance coefficient according to the component information, wherein the balance coefficient is used to ensure that the working power can effectively balance the heat dissipation and water heating requirements of the photovoltaic component; The working power is generated according to the distance, the component temperature, the blowing area, the balance coefficient and the heat dissipation area; the expression of the working power includes: ; in, is the working power, is the component temperature, is the ambient temperature corresponding to the photovoltaic module, is the distance, is the blowing area, is the heat dissipation area, is the balance coefficient.

9. The method according to claim 6, characterized in that Before obtaining the historical hot water usage information of each of the external devices, the method further includes: Obtaining size information and material information of the water storage tank; Determine the maximum water temperature corresponding to the water storage tank according to the size information and material information; Determining whether the water temperature in the water storage tank is greater than the maximum tolerable water temperature; If the water temperature in the water tank is greater than the maximum tolerable water temperature, the water inlet flow of the heat exchange water pipe is adjusted according to the water temperature and the preset temperature and the working power of the fan is adjusted so that the water temperature in the water tank is less than the maximum tolerable water temperature.

10. A waste heat application device for a photovoltaic curtain wall, characterized in that: A controller for a waste heat utilization system according to any one of claims 1 to 5; the device comprises: A temperature acquisition unit, used for acquiring the component temperature of the photovoltaic component when the photovoltaic component is working; A parameter acquisition unit, configured to generate a first fan control signal according to the temperature of the component, so as to control the fan to blow the hot air generated by the photovoltaic component to the heat exchanger to cool the photovoltaic component, and the heat exchanger heats the water in the water storage tank through the heat exchange water pipe by using the heat in the hot air; A control completion unit is used to obtain historical hot water usage information of each of the external devices, wherein the historical hot water usage information includes historical time, historical usage and historical water temperature; a hot water usage prediction model is constructed according to the historical hot water usage information of each of the external devices; the current water temperature, current water storage and current timestamp in the water storage tank are obtained to input the current timestamp into the hot water usage prediction model, and the hot water usage prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water usage information; the current hot water usage information includes hot water usage and hot water temperature; a second fan control signal and a water supply control signal are generated according to the hot water usage, hot water temperature, current water temperature and current water storage, wherein the second fan control signal is used to control the fan to adjust the water temperature in the water storage tank, and the water supply control signal is used to control the heated water to be delivered to the corresponding external device through the water supply pipe.

11. A controller, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is configured to execute the computer program and implement the method according to any one of claims 6 to 9 when executing the computer program.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to implement the method according to any one of claims 6 to 9.

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