Photovoltaic curtain wall waste heat application method, system and device, controller and medium

Abstract

The invention provides a waste heat application method, system and device for a photovoltaic curtain wall, a controller and a medium, and the system comprises a plurality of photovoltaic modules, the back surfaces of which are installed against a wall body; the photovoltaic module is installed between the back of the photovoltaic module and a wall body; the heat exchanger is arranged on the back of the photovoltaic module relative to the fan; one end of the heat exchange water pipe communicates with the heat exchanger through a wall; the other end of the heat exchange water pipe is communicated with the water storage tank; each water supply pipe is further communicated with one external device, and the multiple external devices are arranged in the same smart home environment; the controller is electrically connected with the fan and the water storage tank, when the photovoltaic module works, the fan is controlled to blow hot air generated by the photovoltaic module to the heat exchanger to complete cooling of the photovoltaic module, and the heat exchanger heats water in the water storage tank through the heat exchange water pipe by means of heat in the hot air. And the water storage tank is controlled to convey the heated water to external equipment through the water conveying pipe according to preset requirements so as to supply hot water to the external equipment.

Description

Technical Field

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

[0002] With the widespread application of renewable energy, the integration of photovoltaic modules in buildings is becoming more and more common. As a new type of building photovoltaic integration technology, photovoltaic curtain wall can not only provide clean energy for buildings, but also improve the appearance and functionality of buildings to a certain extent. However, photovoltaic modules will generate a lot of heat during the power generation process. 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 the building wall and increase the load of refrigeration systems such as air conditioners.

[0003] Traditional photovoltaic curtain wall systems are inadequate in handling the waste heat generated by photovoltaic modules. Common methods include natural heat dissipation or forced air cooling, but these methods are inefficient and fail to fully utilize waste heat resources. In addition, hot water needs in home and office environments usually rely on electric water heaters or gas water heaters. These traditional methods are not only energy-intensive but also generate environmental pollution.

[0004] In recent years, some researchers have proposed systems that use the waste heat from photovoltaic modules to heat water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and failure to accurately meet user needs. For example, some systems only use simple temperature sensors to control the opening and closing of fans, and are unable to dynamically adjust water temperature and water storage according to actual user usage.

[0005] Therefore, there is an urgent need for a waste heat collection method for 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 waste heat of photovoltaic curtain walls, aiming to solve the existing system of using waste heat of photovoltaic modules for heating water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and failure to accurately meet user needs. For example, some systems only use simple temperature sensors to control the opening and closing of fans, 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 waste heat application system for a photovoltaic curtain wall, comprising:

[0008] A plurality of photovoltaic modules, wherein the back of the photovoltaic modules is installed against the wall;

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

[0010] A heat exchanger, the heat exchanger being arranged on the back side of the photovoltaic assembly relative to the fan;

[0011] A heat exchange water pipe, one end of which is connected to the heat exchanger through the wall;

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

[0013] A plurality of water delivery pipes, the water delivery pipes being connected to the water storage tank; each of the water delivery pipes is also connected to an external device, and the plurality of external devices are arranged in the same smart home environment;

[0014] A controller is provided, wherein the controller is electrically connected to the fan and the water 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 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 of the external devices, and the historical hot water usage information includes the historical time, the historical usage amount and the historical water temperature; and constructs a hot water usage information according to the historical hot water usage information of each of the external devices. use prediction model; the controller obtains the current water temperature, current water storage amount and current timestamp in the water tank to input the current timestamp into the hot water use prediction model, and the hot water use prediction model outputs at least one external device corresponding to the current timestamp and the corresponding current hot water use information; the current hot water use information includes hot water usage and 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 amount, the second fan control signal is used to control the fan to adjust the water temperature in the water 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 priority information of each of the external devices, and the controller calculates the device weight of each of the external devices according to the priority information, hot water usage, and hot water temperature of each of the external devices; the controller calculates the water delivery control signal according to the device weight, a preset water temperature stability factor, hot water usage, and hot water temperature; the expression of the water delivery control signal includes:

[0016] ;

[0017] 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.

[0018] Exemplarily, 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:

[0019] ;

[0020] 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, .

[0021] In some embodiments, it also includes: a temperature sensor for detecting the water temperature in the water tank; 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 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.

[0022] Exemplarily, it also includes: a drain pipe, which is connected to the water tank; if the water temperature is greater than a preset temperature, the controller controls the water tank to discharge water through the drain pipe.

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

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

[0025] 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 complete cooling of the photovoltaic component, 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 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.

[0027] In some embodiments, the first fan control signal includes working power; 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.

[0028] 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:

[0029] ;

[0030] 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.

[0031] In some embodiments, before obtaining the historical hot water usage information of each of the external devices, it also includes: obtaining the size information and material information of the water tank; determining the maximum tolerable water temperature corresponding to the water tank based on the size information and material information; judging whether the water temperature in the water 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, adjusting the water inlet flow of the heat exchange water pipe and adjusting the working power of the fan according to the water temperature and the preset temperature, so that the water temperature in the water tank is lower 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 a waste heat application system for a photovoltaic curtain wall as provided in any embodiment of the present application; the device comprises:

[0033] A temperature acquisition unit, used for acquiring the component temperature of the photovoltaic component when the photovoltaic component is working;

[0034] 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;

[0035] 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.

[0036] In a fourth aspect, an embodiment of the present application provides a controller comprising a memory and a processor; the memory is used to store a computer program; the processor is used to execute the computer program and implement the waste heat application method provided in any embodiment of the present application when executing the computer program.

[0037] In a fifth aspect, 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 implements the waste heat application method provided in any embodiment of the present application.

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

[0039] The system mainly consists of the following parts: Photovoltaic module: installed on the outside of the wall, with the back against the wall. 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 to 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 tank, used to transport the hot water after heat exchange to the water tank. Water tank: used to store heated water and supply hot water to external devices through water supply pipes. Water supply pipe: multiple water supply pipes connect the water tank and external devices, which can be water heaters, heating systems, hot water faucets, etc. in the smart home environment. Controller: electrically connected to the fan and water tank, responsible for controlling the operation of the fan, the heating and delivery of hot water, and the prediction and adjustment of hot water demand.

[0040] Photovoltaic modules generate heat when generating electricity, which is usually wasted. In this system, this heat is collected and used to heat water. The fan blows the hot air from the back of the photovoltaic module to the heat exchanger to accelerate the transfer of heat. 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 obtains the historical hot water usage information of the external device (such as time, usage, water temperature, etc.) to build a hot water usage prediction model to predict future hot water 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 to ensure accurate control of water temperature and hot water supply.

[0041] The system provided thereby has at least the following beneficial effects:

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

[0043] 2. Intelligent hot water supply: Through the controller's historical hot water usage information and prediction model, the system can intelligently adjust the hot water supply to meet the hot water needs of different time periods and different equipment, thereby improving the efficiency and comfort of hot water supply.

[0044] 3. Energy saving and environmental protection: The system reduces the energy consumption of traditional hot water heating methods (such as electric water heaters or gas water heaters) by recycling the waste heat of photovoltaic modules, and has significant energy-saving 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 taps, etc.), providing hot water supply while improving the overall intelligence level of the smart home system.

[0046] 5. Precise control: Through 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 the hot water supply.

[0047] In summary, the 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 and improve user experience. The system can be integrated with multiple devices in a smart home environment to achieve intelligent distribution and supply of hot water.

[0048] At the same time, the system is suitable for hot water supply scenarios in smart home environments, especially those that require efficient use of waste heat from photovoltaic power generation, such as residences, office buildings, hotels, etc. In addition, the system can also be combined with solar water heating systems to further improve energy efficiency.

[0049] This embodiment provides an efficient photovoltaic curtain wall waste heat application system, which realizes efficient heating and supply of hot water by recycling the waste heat of photovoltaic modules. The system has the advantages of intelligent control, energy saving and environmental protection, integrated design, etc., is suitable for hot water supply in smart home environments, and has broad application prospects.

[0050] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

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

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

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

[0056] Figure 5 This is a schematic flow chart of the steps of a method for applying waste heat of a photovoltaic curtain wall provided in one embodiment of the present application;

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

[0058] Figure 7 It is a schematic block diagram of the structure of a controller provided in one embodiment of the present application.

[0059] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0062] It should be understood that, in order to facilitate the clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit the difference.

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

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

[0065] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0066] With the widespread application of renewable energy, the integration of photovoltaic modules in buildings is becoming more and more common. As a new type of building photovoltaic integration technology, photovoltaic curtain wall can not only provide clean energy for buildings, but also improve the appearance and functionality of buildings to a certain extent. However, photovoltaic modules will generate a lot of heat during the power generation process. 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 the building wall and increase the load of refrigeration systems such as air conditioners.

[0067] Traditional photovoltaic curtain wall systems are inadequate in handling the waste heat generated by photovoltaic modules. Common methods include natural heat dissipation or forced air cooling, but these methods are inefficient and fail to fully utilize waste heat resources. In addition, hot water needs in home and office environments usually rely on electric water heaters or gas water heaters. These traditional methods are not only energy-intensive but also generate environmental pollution.

[0068] In recent years, some researchers have proposed systems that use the waste heat from photovoltaic modules to heat water, but most of these systems lack intelligent control and management, resulting in unstable hot water supply and failure to accurately meet user needs. For example, some systems only use simple temperature sensors to control the opening and closing of fans, and are unable to dynamically adjust water temperature and water storage according to actual user usage.

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

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

[0071] 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 through the heat exchange water pipe with the heat in the hot air; the controller obtains the historical hot water usage information of each of the external devices, and 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 controller The current water temperature, current water storage amount and current timestamp in the water tank are obtained, so as to input the current timestamp into a 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 and 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 amount, the second fan control signal is used to control the fan to adjust the water temperature in the water 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.

[0072] Specifically, the waste heat application system of the photovoltaic curtain wall includes the following main components: Photovoltaic module 2: installed on the outer surface of the building wall 4, responsible for the absorption of 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, and transfers heat from the heat exchanger 1 to the water tank 8. Water tank 8: used to store heated water, and can deliver hot water to external equipment according to preset requirements. Water delivery pipe 7: connects the water tank 8 and external equipment, and is used to deliver hot water. Controller: electrically connected to the fan 3 and the water tank 8, and controls the operation of the fan 3 and the water tank 8 according to the working state of the photovoltaic module 2 and preset requirements.

[0073] For example, photovoltaic modules can use polycrystalline silicon or monocrystalline silicon solar panels as photovoltaic modules. These panels are installed on the exterior wall of the building, with the back close to the wall. Each photovoltaic module can be connected in series or in parallel through wires to form a complete photovoltaic curtain wall system. While photovoltaic modules absorb sunlight and convert it into electrical energy, they generate heat. This part of heat usually accumulates on the back of the module.

[0074] The fan uses a small DC fan installed between the back of each photovoltaic module and the wall. The fan can be powered by the electricity generated by the photovoltaic module or by an independent power supply system. The fan blows the hot air from the back of the photovoltaic module to the heat exchanger to accelerate the transfer of heat. The running 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 contacts the hot air on the back of the photovoltaic module, and the other end contacts 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 pipe, raising the water temperature.

[0076] Heat exchange water pipes use PVC or copper water pipes that are resistant to high temperatures and have good thermal conductivity. The water pipes pass through the wall to connect the heat exchanger and the water tank. The heat exchange water pipes transport the water heated in the heat exchanger to the water tank, ensuring the effective transmission of hot water in the system.

[0077] The water tank uses a stainless steel water tank with good thermal insulation performance. Temperature sensors and water level sensors are installed inside the water tank to monitor the water temperature and water storage volume. The water tank is used to store heated water and transport hot water to various external devices through water pipes. The sensor data in the water 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] Bathing at night: Residents need hot water for bathing at night. The controller predicts the demand for hot water in the bathroom between 18:00 and 20:00 in the evening, and ensures that the water temperature in the water tank remains within a comfortable bathing temperature range by adjusting the fan and solenoid valve. The controller delivers hot water to the bathtub or shower. Residents can enjoy a constant temperature hot water bath, which improves 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 the day in winter (such as 10 am to 4 pm), and efficiently transfers the waste heat of the photovoltaic modules to the heat exchanger through the fan to heat the water in the water tank. The controller delivers hot water to the heating equipment through the water pipe according to the actual needs of the heating system. Residents can use the waste heat of photovoltaic modules for heating in winter, reducing dependence on traditional heating methods and saving energy.

[0084] Through the above specific examples, it can be seen that the photovoltaic curtain wall waste heat application system can play an important role in multiple life scenarios. The coordinated work of various parts of the system not only effectively recovers the waste heat of photovoltaic components, but also realizes the precise supply of hot water through intelligent control. This system has significant advantages in energy saving, environmental protection, intelligent control and integrated design, and provides an efficient and reliable hot water solution for smart home environments.

[0085] In some embodiments, a hot water usage prediction model is constructed based on the historical hot water usage information of each of the external devices, and a flow sensor, a temperature sensor, and a timestamp recorder are installed on each external device (such as a hot water faucet, a bathtub, a heating system, etc.). The hot water usage of each external device is recorded in real time through the sensor, including the start and end time of use, the amount of hot water used, 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 features are extracted to improve the training effect of the model. Sensor failures or abnormal data are removed, such as temperature and flow values ​​that are out of the normal range. For missing data, interpolation methods or the average value of historical data can be used to fill it. All data are 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 raw data, such as:

[0086] Time characteristics: hour, date, day of the week, etc. Usage characteristics: hot water usage in each time period. Water temperature characteristics: hot water temperature in each time period. Weather characteristics: outdoor temperature, light intensity, etc. (can be obtained through the 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), which is not limited in the embodiments of the present application. By using the preprocessed data to train the prediction model, the parameters of the model are optimized so that it can accurately predict the demand for hot water. The preprocessed data is divided into a training set and a test set, usually with a ratio of 70% training set and 30% test set. Initialize the parameters of the model according to the selected model type. For example, for the LSTM model, it is necessary to set the number of layers of the network, the number of neurons in each layer, etc. Train the model using the training set data. The typical training process includes the following steps: forward propagating the input data (time, usage, water temperature and other features) through the model to generate a predicted value. Calculate the loss between the predicted value and the actual value (such as mean square error, root mean square error, etc.). Adjust the parameters of the model through the back propagation algorithm to minimize the loss. Repeat the forward propagation and back propagation process 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 results are not satisfactory, you can adjust the model parameters or select another model for training. By further optimizing the model, the accuracy and stability of the prediction can be improved.

[0088] Use methods such as grid search or random search to find the best hyperparameter combination for the model. As user habits change, the model needs to be regularly updated and retrained 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 to a loadable format, such as TensorFlow's .pb file, PyTorch's .pt file, etc. Load the model file into the controller, and the controller can make real-time predictions by calling the model. The controller inputs the model for real-time prediction based on the current timestamp and other features (such as current water temperature, water storage, etc.), and outputs the hot water demand corresponding to the current timestamp. Based on the prediction results, generate the second fan control signal and water supply control signal to control the solenoid valve or water pump on the fan and water supply pipe to achieve accurate hot water supply.

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

[0090] ;

[0091] 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.

[0092] Furthermore, not only the comprehensive weight of each device is taken into account, but also the water temperature stability factor and response time are introduced. The water temperature stability factor ensures that the water temperature does not change significantly during the delivery process, while the response time is used to smooth the control signal to avoid control fluctuations caused by too long response time. It is an exponential decay 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 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:

[0094] ;

[0095] 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, . Then, the weight of each external device can be adjusted intelligently.

[0096] In some embodiments, it also includes: a temperature sensor for detecting the water temperature in the water 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 tank 8, the controller controls the water tank 8 to adjust the water inlet flow of the heat exchange water pipe 5 and adjust the working power of the fan 3.

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

[0098] By monitoring the water temperature in the water tank 8 in real time and adjusting it when the water temperature exceeds the maximum tolerable water temperature, the water in the water tank 8 can be effectively prevented from overheating, thereby protecting the water tank 8 and the connected external devices from damage to the devices due to high temperature. Through intelligent control, it is ensured that the water 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 to ensure the stable operation of the system. By adjusting the water inlet flow and the power of the fan 3, the waste heat generated by the photovoltaic module 2 can be more efficiently utilized to improve the overall energy efficiency of the system.

[0100] When the water temperature in the water 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 deal with 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 accurately, reducing unnecessary energy waste. The system can continuously optimize the control strategy based on actual operating data, further improve energy utilization efficiency, and reduce carbon emissions. Through intelligent control, the cost of equipment maintenance and replacement caused by high temperature is reduced, while 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, 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, real-time monitoring and dynamic adjustment of the water temperature in the water tank 8 are achieved. This not only protects the water tank 8 and external equipment, prolongs the life of the equipment, but also improves the stability and efficiency of the system, further optimizes energy utilization, and complies with the concept of green building and sustainable development. This embodiment provides a more intelligent and efficient working method for the photovoltaic curtain wall waste heat application system, which has important practical application value.

[0102] Exemplarily, it also includes: a drain pipe 6, which is connected to the water tank 8; if the water temperature is greater than a preset temperature, the controller controls the water tank 8 to discharge water through the drain pipe 6.

[0103] The drain pipe 6 is connected to the water storage tank 8 and is used to discharge water when the water temperature exceeds a 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 water temperature in the water tank 8 is continuously detected by the temperature sensor, and the data is transmitted to the controller. The controller determines whether the water temperature in the water tank 8 exceeds the preset maximum water temperature threshold. If the water temperature in the water tank 8 exceeds the maximum water temperature, the controller will first adjust the water inlet flow of the heat exchange water pipe 5 to increase the inflow of cold water to quickly reduce the water temperature in the water 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 cannot be reduced to a safe range by adjusting the water inlet flow and the power of the fan 3, the controller will further control the drain pipe 6 in the water tank 8 to open and drain the overheated water. During the drainage process, the system will automatically add cold water through the water inlet pipe to maintain the water level in the water tank 8 and the normal operation of the system.

[0105] By opening the drain pipe 6 in time to drain the overheated water, the water temperature in the water tank 8 can be effectively prevented from being too high, and the equipment can be prevented from being damaged by high temperature. It is ensured that the water tank 8 and the connected external equipment always work within a safe temperature range, extending the service life of the equipment.

[0106] On the basis of adjusting the water inlet flow 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 that the system can operate safely even in extreme conditions. The intelligent control system can detect and deal with high temperature problems in a timely manner, 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 water tank 8 can be quickly reduced by draining and replenishing water, ensuring that the system can operate efficiently under high temperature conditions. The controller can dynamically adjust the water inlet flow, fan 3 power and drainage operation according to the actual water temperature data, so that the system can maintain the best operating state under different environmental conditions. Through intelligent control, the water temperature and heat dissipation effect can be managed more accurately, unnecessary energy waste can be reduced, and carbon emissions can be further reduced. The system can continuously optimize the control strategy according to the actual operation data, improve energy utilization efficiency, and comply with the concept of green building and sustainable development.

[0108] Through intelligent control and multiple protection mechanisms, the cost of equipment maintenance and replacement due to high temperature is reduced, while optimizing system operation, reducing energy consumption and saving operating costs. 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 protections and rapid regulation of the water temperature in the water tank 8 are achieved. This not only further protects the water 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, which has 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 the photovoltaic modules 2 , the heating power of the photovoltaic modules 2 , and the rated power of the fan 3 .

[0111] The finned heat exchanger is composed of multiple fins, which 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 the hot air to the finned heat exchanger, and the heat in the hot air is transferred to the water through the fins. More photovoltaic modules 2 means more heat generation, so more fins are needed to improve the heat exchange efficiency. Photovoltaic modules 2 with high heating power will generate more heat, and the number of fins also needs to be increased to cope with higher heat loads. The higher the rated power of the fan 3, the greater the air flow and flow rate, and the higher the heat exchange efficiency, so more fins are also needed to fully utilize 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 real-time monitored surface temperature of the photovoltaic module 2 and the water temperature in the water storage tank 8. By optimizing the number of fins, efficient heat exchange can be ensured under different working conditions.

[0113] The fins of the finned heat exchanger greatly increase the heat exchange area and improve 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 heating power of the photovoltaic modules 2 and the cooling capacity of the fan 3 to ensure efficient heat dissipation under different working conditions.

[0114] The efficient heat exchange capacity of the finned heat exchanger can remove the heat from the surface of the photovoltaic module 2 more quickly, protect the photovoltaic module 2 from high temperature, and increase its service life. By increasing the number of fins, the water temperature in the water tank 8 is always within a safe range, thereby protecting the water tank 8 and the connected external equipment. Furthermore, on the basis of the fan 3 and the heat exchange water pipe 5, the optimized design of the finned heat exchanger is added to form a multi-stage heat dissipation and heat energy recovery mechanism, which improves 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 to ensure that the system can operate efficiently under various environmental conditions.

[0115] In summary, by adopting a finned heat exchanger and optimizing the number of fins, efficient recovery and utilization of the waste heat of the photovoltaic module 2 is achieved. This not only improves the heat exchange efficiency and protects the photovoltaic module 2 and the connected external equipment, but also improves the stability and reliability of the system, which is in line with the concept of green building and sustainable development. This embodiment provides a more efficient and intelligent solution for the photovoltaic curtain wall waste heat application system, which has important practical application value.

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

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

[0118] Step S101: When the photovoltaic module is working, the module temperature of the photovoltaic module is obtained.

[0119] Specifically, a temperature sensor (such as a thermocouple, thermal resistor, etc.) is installed on the surface or back of the photovoltaic module. The controller collects temperature data of the photovoltaic module in real time through an electrical connection with the temperature sensor. The temperature sensor converts the collected temperature signal into an electrical signal (such as voltage, current, etc.) and transmits it to the controller, which processes the received electrical signal to obtain a specific temperature value.

[0120] For example, if a thermocouple sensor is used, it has a fast response speed and high accuracy. Multiple 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 and accuracy.

[0121] By acquiring the temperature of the photovoltaic modules in real time, the system can be quickly responded to and accurately controlled. By monitoring the temperature, it is possible to detect whether the photovoltaic modules are overheating in time and take measures in advance to avoid failures. The temperature data can provide a basis for subsequent control strategies and improve the overall operating efficiency and reliability of the system.

[0122] Step S102. 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 complete the cooling of the photovoltaic component. The heat exchanger heats the water in the water tank through the heat exchange water pipe.

[0123] Specifically, by presetting multiple 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 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 the hot air generated by the photovoltaic module is blown to the heat exchanger for heat exchange.

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

[0125] Dynamically adjusting the fan speed and air volume according to the module temperature can more efficiently remove the heat from the surface of the photovoltaic module. Avoiding the fan running at full speed when high speed is not required can save energy consumption. Through effective temperature control, the performance degradation and failure of photovoltaic modules caused by high temperature can be reduced, and the service life of the system can be extended.

[0126] Step S103. Obtain historical hot water usage information of each external device, 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 external device; obtain the current water temperature, current water storage 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 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 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.

[0127] Specifically, historical hot water usage information: including historical time, historical usage, 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: The hot water usage prediction model can be constructed using time series analysis, machine learning, or deep learning methods. The model includes any one of ARIMA, LSTM, and random forest. By obtaining the historical hot water usage information of each external device, a hot water usage prediction model is constructed, and a control signal is generated according to the current time and the state of the water tank to realize intelligent control of hot water supply. The prediction model based on historical data can more accurately predict the user's hot water demand, avoid overheating or insufficient supply, and improve the energy efficiency of the system. The fan speed and water delivery path are dynamically adjusted according to the prediction results to ensure that the water temperature in the water tank remains within a suitable range to meet the user's hot water demand. Through intelligent control, users can obtain constant temperature hot water when they need it, which improves 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 reduced.

[0128] In summary, through the detailed implementation of steps S101 to S103, the photovoltaic curtain wall waste heat application system can realize the efficient recovery and intelligent management of the waste heat of photovoltaic modules, which not only improves the power generation efficiency of photovoltaic modules, but also improves the user experience and energy-saving 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 working power; 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 factor takes into account the size and material properties of the PV modules, ensuring that the fan's operating power can accurately match the heat dissipation requirements of the PV modules. By optimizing the operating power, the fan can more effectively blow the heat generated by the PV modules to the heat exchanger to prevent overheating. The balance factor ensures that the fan's operating power not only meets the heat dissipation requirements of the PV modules, but also effectively transfers the heat to the water in the water storage tank, achieving efficient energy recovery. By precisely controlling the fan's operating power, the water temperature in the water storage tank can be more stable, providing a more reliable hot water supply. The balance factor can be adjusted according to PV modules of different sizes and materials, allowing the system to adapt to different types of PV modules. The system can dynamically adjust the fan's operating power based on factors such as ambient temperature, module temperature, and the distance between the fan and the heat exchanger, improving the flexibility and adaptability of the system.

[0136] This embodiment further optimizes the method of generating fan operating power by introducing the size and material properties of the photovoltaic module and calculating a balance coefficient. This not only improves the heat dissipation effect and heat recovery efficiency of the system, but also enhances the adaptability and safety of the system, which is in line with the concept of green building and sustainable development. This embodiment provides a more intelligent and efficient solution for the photovoltaic curtain wall waste heat application system, which has important practical application value.

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

[0138] By real-time monitoring and dynamic adjustment of the water temperature of the water tank, the water temperature in the water tank can be effectively prevented from exceeding its maximum tolerance, thus preventing the water tank and external equipment from being damaged by high temperature. This extends the service life of the water tank and external equipment, and reduces maintenance and replacement costs. By adjusting the water flow rate of the heat exchange water pipe and the operating power of the fan, the water temperature of the water tank can be more accurately controlled to ensure that the water temperature is within a safe range while maximizing the heat recovery efficiency. The water temperature in the water tank is more stable, providing a more reliable hot water supply.

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

[0140] In summary, by adding protective measures for the water tank temperature, it is ensured that the water temperature in the water tank does not exceed its maximum tolerable water temperature. This not only improves the safety of the system, but also optimizes the heat 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, which has important practical application value and the effect of improving user satisfaction.

[0141] Exemplarily, the method of regulating the water inlet flow of the heat exchange water pipe according to the water temperature and the preset temperature and controlling the fan to adjust the operating power also includes: generating a drainage flow corresponding to a drain pipe according to the water temperature and the preset temperature; regulating the water inlet flow of the heat exchange water pipe according to the water temperature and the preset temperature; regulating the operating power of the fan according to the water temperature and the preset temperature; and controlling the water tank to discharge water from the drain pipe according to the drainage flow.

[0142] By dynamically adjusting the water inlet flow, fan operating power and drainage flow, the water temperature in the water tank can be effectively prevented from exceeding its maximum water temperature, thus avoiding damage to the equipment due to high temperature. The service life of the water tank and external equipment is extended, and maintenance and replacement costs are reduced. By comprehensively adjusting the water inlet flow, fan operating power and drainage flow, the water temperature of the water tank can be more finely controlled to ensure that the water temperature is within a safe range while maximizing the heat recovery efficiency. The water temperature in the water tank is more stable, providing a more reliable hot water supply.

[0143] By further introducing dynamic regulation of drainage flow, combined with regulation of water inlet flow and fan operating power, a comprehensive water tank temperature protection mechanism is formed. This not only improves the safety of the system and ensures that the water temperature in the water tank does not exceed its maximum tolerance, but also optimizes the heat 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, which has significant practical application value and the effect of improving user satisfaction.

[0144] See also Figure 6 As shown, Figure 6 1 is a schematic diagram of the structure of the waste heat application device 200 of the photovoltaic curtain wall provided in 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, which can be a handheld terminal, a laptop computer, a wearable device or a robot, etc.

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

[0146] The temperature acquisition unit 201 is used to acquire the component temperature of the photovoltaic component when the photovoltaic component is working;

[0147] The parameter acquisition unit 202 is used 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 component to the heat exchanger to complete the cooling of the photovoltaic component, 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] The control completion unit 203 is used to obtain the historical hot water usage information of each of the external devices, the historical hot water usage information includes the historical time, historical usage and historical water temperature; construct a hot water usage prediction model according to 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, 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; generate 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, 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.

[0149] It should be noted that technical personnel in the relevant field can clearly understand that, for the convenience and conciseness of description, the specific working processes of the waste heat application device and each module of the photovoltaic curtain wall described above 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 repeated here.

[0150] The above-mentioned method for utilizing waste heat of photovoltaic curtain wall can be realized in the form of a computer program. The computer program can be used in Figure 6 Run on the device shown.

[0151] See also Figure 7 , Figure 7 : is a schematic block diagram of the structure of a controller provided in an embodiment of the present application. The controller includes a processor, a memory and a network interface connected via a device bus, wherein 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 one of the waste heat application methods of the photovoltaic curtain wall.

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

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

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

[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 (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) 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] 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, obtaining the module temperature of the photovoltaic module;

[0159] 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 complete cooling of the photovoltaic component, 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 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.

[0161] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor implements the steps of the waste heat application method of the photovoltaic curtain wall provided in any embodiment of the present application.

[0162] The computer-readable storage medium may be an internal storage unit of the controller described in the foregoing embodiment, such as a 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, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the controller.

[0163] It should be noted that technical personnel in the relevant field can clearly understand that, for the convenience and conciseness of description, the specific structure of the ultra-thin high-temperature colored glaze glass with high flatness described above can refer to the corresponding process in the embodiments of the ultra-thin high-temperature colored glaze glass processing method with high flatness described in the above embodiments, and will not be repeated here.

[0164] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on 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 complete cooling of the photovoltaic component, 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; 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 to acquire 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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