Thermal heating composite system integrating solar energy

By introducing bidirectional heat transfer medium pipes, nano-ceramic coatings, energy storage modules, and intelligent control modules into the heating system, the integrated design of solar energy and traditional thermal heating systems and the problem of multi-energy synergistic optimization have been solved, achieving efficient and stable heating results.

CN121383280APending Publication Date: 2026-01-23SHEN KAN QINHUANGDAO GENERAL ENG DESIGN & RES INST CORP MCC
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Patent Information

Application Number
CN202511823634.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing heating systems have shortcomings in the integrated design of solar and traditional thermal heating systems, multi-energy synergistic optimization, dynamic regulation capabilities, and stability under extreme conditions, resulting in low energy utilization efficiency and poor stability.

Method used

A two-way heat transfer medium pipeline connects the solar collector module and the heating module. A nano-ceramic coating is used to reduce heat loss. An energy storage module and an intelligent control module are also introduced. A central controller enables multi-energy synergistic optimization and dynamic control.

Benefits of technology

This improved the system's heat transfer efficiency and stability, achieved efficient coupling between solar energy and traditional thermal heating systems, and enhanced energy utilization efficiency and operational stability.

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Abstract

The invention relates to the technical field of heating, in particular to a solar energy integrated thermal heating composite system which comprises a solar heat collection module, a thermal heating module, an energy storage module, an intelligent regulation and control module and a terminal user module. By optimizing the coupling mode of the solar heat collection device and a heat supply pipe network, the heat loss is reduced by adopting a nano ceramic coating, and efficient heat energy storage is realized by combining phase change energy storage and sensible heat energy storage. The intelligent regulation and control module dynamically predicts the heat energy demand through an artificial intelligence algorithm, and stable operation of the system is ensured. The multi-energy cooperative heating efficiency can be improved, energy waste is reduced, the heating stability in extreme weather is enhanced, and the modern heating requirements of high efficiency, environmental protection and economy are met.
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Description

Technical Field

[0001] This invention belongs to the field of new energy and heating technology, specifically a solar-integrated thermal heating composite system. Background Technology

[0002] With the increasing prominence of energy crises and environmental issues, solar energy, as a clean and renewable energy source, is being widely used in the heating sector. However, in the current technology, how to efficiently integrate solar energy with traditional thermal heating systems and optimize their operational efficiency and economy remains a pressing technical challenge.

[0003] Existing patents disclose a distributed solar heating system and method. This scheme proposes a distributed solar heating system, including a centralized heating station and multiple user solar heating systems, achieving coordinated heat distribution through a heat exchange network between the user heating stations and the centralized heating station. This system utilizes the asynchronous heat generation and consumption of each user, coordinating the heating network to meet user heat demands, thereby reducing the load on the centralized heat source and achieving energy conservation. However, this technical solution has the following shortcomings: First, the integration of the solar heating component with the traditional heating system is low, failing to fully achieve dynamic energy balance and intelligent control; second, the system is highly dependent on the utilization rate of the user-end solar heating equipment, and when solar energy resources are insufficient, it may not effectively meet user heating needs, leading to decreased system stability; furthermore, this scheme does not optimize the heat loss between the solar collector and the heating network, potentially affecting overall energy utilization efficiency.

[0004] Among existing patents, there is a smart control system for centralized heating using an air source heat pump. This system proposes a smart control system for centralized heating based on an air source heat pump. By monitoring the temperature distribution inside and outside the heating area in real time, it dynamically adjusts the power of the heat pump and the operating status of the ventilation system to ensure uniform heating and maximize energy efficiency. However, this technical solution also has certain limitations: First, the system mainly relies on the air source heat pump as the core heat source and does not consider the possibility of using solar energy as an auxiliary or supplementary heat source, limiting its application in multi-energy collaborative heating scenarios; second, the system's response speed and adjustment accuracy under extreme weather conditions with large indoor-outdoor temperature differences still need improvement, which may lead to unstable heating effects; in addition, this solution does not involve the synergistic optimization design of solar thermal collectors and air source heat pumps, failing to fully utilize the complementary advantages of the two energy forms, which may result in energy waste.

[0005] The aforementioned problems indicate that existing heating systems still have certain shortcomings in areas such as the integrated design of solar energy and traditional thermal heating systems, multi-energy synergistic optimization, dynamic control capabilities, and stability under extreme conditions. Therefore, this invention provides an integrated solar thermal heating system, aiming to achieve intelligent control of multi-energy synergistic heating by optimizing the coupling method between solar collectors and traditional thermal heating systems. This improves the overall energy utilization efficiency and operational stability of the system, thereby meeting the comprehensive demands of modern heating for high efficiency, environmental protection, and economy.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide an integrated solar energy heating system to solve the problems mentioned in the background.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an integrated solar energy heating system, comprising a solar collector module, a heating module, an energy storage module, an intelligent control module, and an end-user module;

[0009] The solar thermal collector module is connected to the thermal heating module through a bidirectional heat medium pipe, and the inner wall of the bidirectional heat medium pipe is coated with a nano-ceramic coating.

[0010] The energy storage module includes a phase change energy storage unit and a sensible heat energy storage unit. The phase change energy storage unit and the sensible heat energy storage unit are connected by a heat medium bypass pipeline, and a three-way regulating valve is installed on the bypass pipeline.

[0011] The intelligent control module includes a central controller, a sensor network, and an actuator. The central controller is connected to the actuator via a wireless communication protocol, and the sensor network is connected to the central controller via an RS485 bus.

[0012] The end-user module includes radiators, underfloor heating pipes, and fan coil units. The radiators, underfloor heating pipes, and fan coil units are connected by a manifold, which is equipped with an electric valve and a flow balancing valve.

[0013] Preferably, the solar thermal collector module includes a flat plate collector, a vacuum tube collector, and a heat medium circulation pump. The flat plate collector and the vacuum tube collector are respectively arranged on the roof and the south facade of the building, and the flow rate of the heat medium circulation pump is adjusted by frequency conversion control technology.

[0014] Preferably, the heating module includes a gas boiler, a heat exchanger, and an auxiliary heater. The gas boiler is connected to the inlet end of the heat exchanger via a heat medium pipeline, and the auxiliary heater is located at the outlet end of the heat exchanger.

[0015] Preferably, the phase change energy storage unit uses paraffin-based composite material as the energy storage medium and has multiple honeycomb cavities inside. The sensible heat energy storage unit is a water tank structure with a spiral guide plate inside.

[0016] Preferably, the actuators of the intelligent control module include electric valves, frequency converter pumps, and regulating valves, and all actuators communicate with the central controller via PWM signals.

[0017] Preferably, the radiator of the end-user module is located near the exterior wall of the building, the underfloor heating pipes are laid under the floor, and the fan coil unit is installed under the ceiling.

[0018] Preferably, the bidirectional heat medium pipeline is connected using a flange sealing structure.

[0019] Preferably, the central controller has a built-in artificial intelligence algorithm that can generate control strategies based on historical operating data and real-time meteorological information.

[0020] Preferably, the sensor network includes temperature sensors, flow sensors, and pressure sensors, which are respectively arranged at key nodes of the heat medium pipeline.

[0021] Preferably, the energy storage module is connected to the solar thermal collector module and the thermal heating module through a dual-loop design, and the switching of the dual loops is controlled by an electric valve.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the integrated solar energy thermal heating system:

[0023] According to the above technical solution, since the solar thermal collector module and the heating module are connected by a bidirectional heat transfer medium pipe and a nano-ceramic coating is used to reduce heat loss, the system's heat transfer efficiency can be improved, reducing energy waste. Furthermore, the phase change energy storage unit and sensible heat energy storage unit of the energy storage module achieve efficient storage and flexible release of thermal energy through a dual-loop design, further improving the system's economic efficiency.

[0024] The intelligent control module, through the artificial intelligence algorithm built into the central controller and combined with real-time data collected by the sensor network, can dynamically predict future thermal energy demand and generate optimal control strategies, thereby ensuring stable system operation and high energy efficiency. The actuator receives control commands via PWM signals, enabling rapid response to the central controller's control needs and enhancing the system's dynamic response capability.

[0025] The radiators, underfloor heating pipes, and fan coil units of the end-user module are connected through a manifold and equipped with electric valves and flow balancing valves, which can dynamically adjust the flow of the heat medium according to user needs, thereby achieving uniform and personalized adjustment of the heating effect.

[0026] In particular, by optimizing the heat loss design between the solar thermal collector and the heating network and introducing a multi-energy collaborative optimization mechanism, this invention can fully leverage the complementary advantages of solar energy and traditional heating systems, thereby improving overall energy utilization efficiency and operational stability.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the solar-integrated thermal heating composite system of the present invention.

[0030] Figure 2 This is a schematic diagram of the coupling structure between the solar thermal collector module and the thermal heating module in this invention.

[0031] Figure 3 This is a schematic diagram of the energy storage module of the present invention. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] This invention provides a technical solution: its overall structure is as follows Figure 1 As shown, an integrated solar energy heating system includes a solar collector module, a heating module, an energy storage module, an intelligent control module, and an end-user module.

[0034] The solar thermal collector module consists of flat-plate collectors, evacuated tube collectors, and a heat medium circulation pump. The flat-plate collectors are installed on the building roof, while the evacuated tube collectors are located on the south facade. Both are connected to the heat medium circulation pump via heat medium pipelines. The heat medium circulation pump uses variable frequency control technology; its inlet is connected to the outlet of the two sets of collectors via a T-joint, and its outlet is connected to the heating module via a bidirectional heat medium pipeline. The inner wall of the bidirectional heat medium pipeline is coated with a nano-ceramic coating, such as... Figure 2 As shown, the coating reduces heat loss through optimized heat conduction path design. The heat transfer fluid circulation pump dynamically adjusts the flow rate based on temperature and flow data collected by the sensor network to adapt to the heat energy harvesting needs under different seasons and weather conditions.

[0035] The solar thermal collector module is connected to the thermal heating module through a bidirectional heat medium pipe, and the inner wall of the bidirectional heat medium pipe is coated with a nano-ceramic coating.

[0036] The heating module includes a gas-fired boiler, a heat exchanger, and an auxiliary heater. The gas-fired boiler, serving as a backup heat source, is connected to the inlet of the heat exchanger via a heat transfer medium pipeline. The other inlet of the heat exchanger is connected to the solar collector module via a bidirectional heat transfer medium pipeline. The heat exchanger internally features a multi-layer plate heat exchange structure to achieve efficient heat exchange between the heat energy collected by the solar collector module and the heat transfer medium in the heating module. The auxiliary heater is located at the outlet of the heat exchanger, and its heating element uses an electric heating wire structure and is connected to the central controller via a temperature control switch. When the heat transfer medium temperature is detected to be lower than the set value, the auxiliary heater activates to ensure the stability of the heating water temperature.

[0037] The energy storage module includes a phase change energy storage unit and a sensible heat energy storage unit. The phase change energy storage unit and the sensible heat energy storage unit are connected by a heat medium bypass pipeline, and a three-way regulating valve is installed on the bypass pipeline.

[0038] Energy storage modules such as Figure 3 As shown, the system includes a phase change energy storage unit and a sensible heat energy storage unit. The phase change energy storage unit uses paraffin-based composite material as the energy storage medium and has multiple honeycomb cavities inside to increase the heat exchange area. The sensible heat energy storage unit is a water tank structure with spiral baffles inside to improve hot water storage efficiency. The phase change energy storage unit and the sensible heat energy storage unit are connected via a heat medium bypass pipeline. A three-way regulating valve is installed on the bypass pipeline to distribute the heat energy flow according to actual needs. The energy storage module is connected to the solar collector module and the heating module through a dual-loop design. The switching between the two loops is controlled by an electric valve, which receives a PWM signal from the central controller to execute the action.

[0039] The intelligent control module includes a central controller, a sensor network, and an actuator. The central controller is connected to the actuator via a wireless communication protocol, and the sensor network is connected to the central controller via an RS485 bus.

[0040] The intelligent control module comprises a central controller, a sensor network, and actuators. The central controller incorporates artificial intelligence algorithms and connects to the actuators via a wireless communication protocol. The sensor network includes temperature sensors, flow sensors, and pressure sensors. Temperature sensors are positioned at key nodes in the heat medium pipeline, while flow and pressure sensors are installed at the inlet and outlet ends of the heat medium circulation pump, respectively. Actuators include electric valves, variable frequency pumps, and regulating valves; all actuators communicate with the central controller via PWM signals. The central controller generates control strategies based on real-time data collected by the sensor network, combined with historical operating data and meteorological information. These control strategies are then used by the actuators to dynamically optimize the system's operating status.

[0041] The end-user module includes radiators, underfloor heating pipes, and fan coil units. The radiators, underfloor heating pipes, and fan coil units are connected by a manifold, which is equipped with an electric valve and a flow balancing valve.

[0042] The end-user module includes radiators, underfloor heating pipes, and fan coil units. Radiators are located near the building's exterior walls, transferring heat into the room through natural convection. Underfloor heating pipes are laid beneath the floor, using PEX tubing and connected to the heat medium piping via a manifold. Fan coil units are installed below the ceiling, providing rapid heating through forced convection. The manifold is equipped with electric valves and flow balancing valves. The electric valves receive PWM signals from the central controller to dynamically adjust the heat medium flow rate of each end device, while the flow balancing valves are used for manual fine-tuning of the heat medium distribution ratio.

[0043] The solar thermal collector module includes a flat plate collector, a vacuum tube collector, and a heat medium circulation pump. The flat plate collector and the vacuum tube collector are respectively arranged on the roof and the south facade of the building, and the flow rate of the heat medium circulation pump is adjusted by frequency conversion control technology.

[0044] The heating module includes a gas boiler, a heat exchanger, and an auxiliary heater. The gas boiler is connected to the inlet of the heat exchanger via a heat medium pipeline, and the auxiliary heater is located at the outlet of the heat exchanger.

[0045] The phase change energy storage unit uses paraffin-based composite material as the energy storage medium and has multiple honeycomb cavities inside. The sensible heat energy storage unit is a water tank structure with a spiral guide plate inside.

[0046] The actuators of the intelligent control module include electric valves, variable frequency pumps, and regulating valves. All actuators communicate with the central controller via PWM signals.

[0047] During system operation, the solar thermal collector module first absorbs solar radiation through flat-plate and evacuated tube collectors, transferring the heat energy to the heat medium circulation pump. The heat medium circulation pump, using variable frequency control technology, adjusts the flow rate and delivers the heat medium to the heat exchanger of the heating module. The heat exchanger exchanges heat between the solar thermal collector module and the heat medium of the heating module, and the heat medium then enters the energy storage module. The energy storage module selects to store the heat energy in a phase change energy storage unit or a sensible heat energy storage unit, or releases it directly to the heating module, depending on actual needs. The intelligent control module generates control strategies using artificial intelligence algorithms built into the central controller combined with real-time data collected by the sensor network. These strategies dynamically optimize the system's operating status through actuators. The end-user module 5 dynamically adjusts the heat medium flow rate of each end device according to user needs through electric valves and flow balancing valves on the manifold, thereby achieving uniform and personalized heating effects.

[0048] When solar energy resources are insufficient, the gas-fired boiler starts to provide a stable heat supply to the system. An auxiliary heater reheats the heat transfer medium under extreme low-temperature conditions to ensure the stability of the heating water temperature. The energy storage module uses a dual-loop design to flexibly switch between heat storage and release modes, and a three-way regulating valve between the phase change energy storage unit and the sensible heat energy storage unit allocates the heat flow direction according to actual needs. The intelligent control module connects to the central controller via a wireless communication protocol. The central controller predicts future heat demand based on historical operating data and real-time meteorological information and generates corresponding control strategies. The entire system ensures the sealing and durability of the heat transfer medium pipelines through a flange sealing structure, achieves communication between the sensor network and the central controller through an RS485 bus, and enables the actuators to respond quickly to control commands through PWM signals.

[0049] To enable those skilled in the art to fully understand and implement this invention, the specific implementation principle of this invention will be further explained below in conjunction with a specific application scenario.

[0050] On a winter morning, solar radiation is high, but the outdoor temperature is low. The system starts operating, initially absorbing solar radiation energy through the flat-plate and evacuated tube collectors in the solar thermal module, and transferring the heat to the heat medium circulation pump. Based on real-time temperature and flow data collected by a sensor network, the heat medium circulation pump dynamically adjusts the flow rate using variable frequency control technology to maximize heat collection efficiency. The heat medium is then transported to the heat exchanger of the heating module through bidirectional heat medium pipelines. The inner walls of these bidirectional heat medium pipelines are coated with a nano-ceramic coating, which, through optimized heat conduction path design, effectively reduces heat loss during transmission, thereby improving heat utilization efficiency.

[0051] The heat exchanger features a multi-layered plate heat exchange structure where the heat collected by the solar collector module and the heat transfer medium in the heating module undergo efficient heat exchange. After heat exchange, the heat transfer medium enters the energy storage module. At this point, the central controller, based on data collected by the sensor network and meteorological information, determines that the current heat energy supply is sufficient. Therefore, it switches the dual-loop design via an electric valve to store excess heat energy in the phase change energy storage unit. The phase change energy storage unit uses paraffin-based composite material as the energy storage medium and has multiple honeycomb cavities inside, which significantly increases the heat exchange area, thereby improving heat energy storage efficiency. Simultaneously, the spiral guide plate in the sensible heat energy storage unit optimizes the hot water flow path, further improving hot water storage efficiency.

[0052] As solar radiation intensity gradually decreases in the afternoon, the central controller predicts future heat demand based on real-time data. It then releases the stored heat energy from the phase change energy storage unit into the heating module via a three-way regulating valve to supplement insufficient solar energy. Simultaneously, the intelligent control module connects to the central controller via a wireless communication protocol. The central controller's built-in artificial intelligence algorithm combines historical operating data to generate control strategies and sends commands to the actuators via PWM signals. The actuators, including electric valves, variable frequency pumps, and regulating valves, rapidly respond to the central controller's control requests, ensuring dynamic optimization of the system's operating status.

[0053] The radiators of the end-user modules are located near the exterior walls of the building, the underfloor heating pipes are laid under the floor, and the fan coil units are installed under the ceiling.

[0054] The bidirectional heat medium pipeline is connected using a flange sealing structure.

[0055] The central controller has a built-in artificial intelligence algorithm that can generate control strategies based on historical operating data and real-time meteorological information.

[0056] The sensor network includes temperature sensors, flow sensors, and pressure sensors, which are respectively arranged at key nodes of the heat medium pipeline.

[0057] The energy storage module is connected to the solar thermal collector module and the thermal heating module through a dual-loop design, and the switching of the dual loops is controlled by an electric valve.

[0058] In the end-user module, radiators are placed near the building's exterior walls to transfer heat into the room through natural convection; underfloor heating pipes are laid beneath the floor to provide uniform heating through radiant heat transfer; fan coil units are installed under the ceiling to provide enhanced heating in scenarios requiring rapid temperature increases. Electric valves installed on the manifold receive PWM signals from the central controller to dynamically adjust the heat medium flow rate of each end device, while flow balancing valves are used for manual fine-tuning of the heat medium distribution ratio, thereby achieving both uniform heating and personalized adjustment of the heating effect.

[0059] If solar energy resources are completely insufficient at night or under extreme weather conditions, the gas-fired boiler will start to provide a stable heat supply to the system. An auxiliary heater is located at the outlet of the heat exchanger, and its heating element is connected to the central controller via a temperature control switch. When the temperature of the heat medium is detected to be lower than the set value, the auxiliary heater will start to reheat the heat medium to ensure the stability of the heating water temperature. Furthermore, the energy storage module uses a dual-loop design to flexibly switch between heat storage and release modes. A three-way regulating valve between the phase change energy storage unit and the sensible heat energy storage unit allocates the heat flow according to actual needs, further improving the system's stability and economy.

[0060] The entire system utilizes a flange sealing structure to ensure the sealing and durability of the heat medium pipelines, preventing heat loss due to leaks. A sensor network communicates with the central controller via an RS485 bus, and the actuators use PWM signals to achieve rapid response to control commands, thus ensuring efficient system operation under various conditions. Through these steps, this invention achieves efficient coupling between solar energy and traditional thermal heating systems, fully leveraging the advantages of multi-energy synergistic optimization and meeting the comprehensive demands of modern heating for efficiency, environmental protection, and economy.

[0061] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0062] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0063] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. An integrated solar heating and cooling system, comprising a solar collector module, a heating module, an energy storage module, an intelligent control module and an end-user module, characterized in that: the solar collector module is connected to the heating module through a bidirectional heat medium pipeline, the inner wall of the bidirectional heat medium pipeline is coated with a nano ceramic coating; the energy storage module comprises a phase change energy storage unit and a sensible heat energy storage unit, the phase change energy storage unit and the sensible heat energy storage unit are connected through a heat medium bypass pipeline, and a three-way regulating valve is installed on the bypass pipeline; the intelligent control module comprises a central controller, a sensor network and an actuator, the central controller is connected to the actuator through a wireless communication protocol, and the sensor network is connected to the central controller through an RS485 bus; the end-user module comprises a radiator, a floor heating pipeline and a fan coil, the radiator, the floor heating pipeline and the fan coil are connected through a distribution water heater, and an electric valve and a flow balance valve are installed on the distribution water heater.

2. The integrated solar hydronic heating and domestic hot water system of claim 1, wherein: the solar collector module comprises a flat plate collector, a vacuum tube collector and a heat medium circulating pump, the flat plate collector and the vacuum tube collector are arranged on the roof and the south facade of a building respectively, and the heat medium circulating pump adjusts the flow through frequency control technology.

3. The integrated solar hydronic heating and domestic hot water system of claim 2, wherein: the heating module comprises a gas boiler, a heat exchanger and an auxiliary heater, the gas boiler is connected to the inlet end of the heat exchanger through a heat medium pipeline, and the auxiliary heater is arranged at the outlet end of the heat exchanger.

4. The integrated solar hydronic heating and domestic hot water system of claim 3, wherein: the phase change energy storage unit uses a paraffin-based composite material as the energy storage medium, and is provided with a plurality of honeycomb cavities inside, and the sensible heat energy storage unit is a water tank structure and is provided with a spiral guide plate inside.

5. The integrated solar hydronic heating and domestic hot water system of claim 4, wherein: the actuator of the intelligent control module comprises an electric valve, a variable frequency pump and a regulating valve, and all the actuators communicate with the central controller through PWM signals.

6. The integrated solar hydronic heating and domestic hot water system of claim 5, wherein: the radiator of the end-user module is arranged near the outer wall of the building, the floor heating pipeline is laid under the floor, and the fan coil is installed under the ceiling.

7. The integrated solar hydronic heating and domestic hot water system of claim 6, wherein: the bidirectional heat medium pipeline is connected by a flange sealing structure.

8. The integrated solar hydronic heating and domestic hot water system of claim 7, wherein: the central controller is built-in with an artificial intelligence algorithm, which can generate control strategies according to historical operation data and real-time weather information.

9. The integrated solar hydronic heating hybrid system of claim 8, wherein: the sensor network comprises temperature sensors, flow sensors and pressure sensors, which are arranged at key nodes of the heat medium pipeline.

10. The integrated solar hydronic heating hybrid system of claim 9, wherein: the energy storage module is connected to the solar collector module and the heating module through a double-circuit design, and the switching of the double circuit is controlled by an electric valve.