PVT-based three-source heat pump module system

Abstract

The invention discloses a PVT-based three-source heat pump module system, comprising: a PVT assembly, the PVT assembly comprising a circulation pipeline and an optical storage direct flexible control system; the three-source heat pump system comprises an evaporator assembly, a condenser, a compressor and an expansion valve; the evaporator assembly comprises a water source evaporator, an air source evaporator and a ground source evaporator which are arranged in parallel; the water source evaporator is connected with the circulating pipeline; the air source evaporator is connected with an ambient air circulation pipeline; and the ground source evaporator is connected with the geothermal circulating pipeline. According to the system, air source, water source and geothermal source cooling system control is combined, the heating performance under the low-temperature working condition is improved through multi-stage compression, system operation parameters are monitored in real time through the Internet of Things technology, the operation strategy is optimized, the system stability and dynamic adaptability are improved, and therefore the comprehensive energy efficiency COP value is improved to the maximum extent; the problem that a traditional heat pump system is low in energy efficiency in a low-temperature environment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump structures, and in particular to a three-source heat pump module system based on PVT. Background Art

[0002] Traditional heat pump systems often use a single-stage compression and condensation-based heat dissipation method (e.g., pure air cooling or conventional water cooling). This results in significant degradation of heating performance and low energy efficiency under low-temperature or high-load conditions. Heating applications, in particular, generally face bottlenecks in energy efficiency and operational stability. For example, air-source heat pumps experience a significant drop in efficiency at temperatures below -25°C due to evaporator frosting.

[0003] The system energy efficiency cannot be further improved in low-temperature environments, which affects operational stability and adaptability to dynamic working conditions, and there is room for improvement. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-source heat pump module system based on PVT to address the above-mentioned shortcomings.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a three-source heat pump module system based on PVT, comprising:

[0006] PVT components, including circulation pipelines and solar-storage direct-flexible control systems;

[0007] A three-source heat pump system, comprising an evaporator assembly, a condenser, a compressor, and an expansion valve;

[0008] The evaporator assembly includes a water source evaporator, an air source evaporator and a ground source evaporator arranged in parallel;

[0009] The water source evaporator is connected to the circulation pipeline;

[0010] The air source evaporator is connected to the ambient air circulation pipeline;

[0011] The ground source evaporator is connected to the geothermal circulation pipeline;

[0012] The evaporator assembly further includes a first control valve connected to each evaporator so that the system activates corresponding components according to environmental conditions;

[0013] An energy storage device is connected to the three-source heat pump system and is used to store thermal energy.

[0014] Furthermore, the circulation pipeline, the ambient air circulation pipeline and the geothermal circulation pipeline are all filled with a heat exchange medium, as well as a flow monitoring device, a circulation pump and a second control valve for driving the circulation of the heat exchange medium;

[0015] The heat exchange medium is an ethylene glycol solution with a concentration of 10%.

[0016] Furthermore, a four-way valve is provided between the evaporator assembly and the condenser;

[0017] The four-way valve is used to switch the circulation direction according to environmental conditions.

[0018] Furthermore, environmentally friendly refrigerants such as CO2 circulate inside the water source evaporator, air source evaporator and ground source evaporator.

[0019] Furthermore, the energy storage device is provided with a circulation pipe, a circulation pump and a third control valve connected to the three-source heat pump system.

[0020] Furthermore, the solar-storage direct-flexible control system is electrically connected to the three-source heat pump system and the user end.

[0021] Furthermore, it also includes a control system, which is electrically connected to the PVT component, the three-source heat pump system and the energy storage device;

[0022] The control system is used to monitor system operating parameters in real time to optimize operating strategies.

[0023] The beneficial effects of the present invention are embodied in:

[0024] The present invention combines air source, water source and geothermal source cooling system control, improves heating performance under low temperature conditions through multi-stage compression, and uses Internet of Things technology to monitor system operating parameters in real time, such as compressor suction and exhaust pressure, antifreeze flow, etc., to optimize operating strategies, improve system stability and dynamic adaptability, thereby maximizing the comprehensive energy efficiency COP value, solving the problem of low energy efficiency of traditional heat pump systems. The application scenarios prioritize solving the heating and cooling needs of office and living areas in buildings, and gradually expand to multiple fields such as industry and agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the system of the present invention.

[0026] In the picture:

[0027] 01. Ambient air circulation pipeline; 02. Geothermal circulation pipeline;

[0028] 1. PVT components; 11. Circulation pipeline; 12. Solar storage direct and flexible control system;

[0029] 2. Three-source heat pump system; 21. Evaporator assembly; 211. Water source evaporator; 212. Air source evaporator; 213. Ground source evaporator; 22. Condenser; 23. Compressor; 24. Expansion valve; 25. Four-way valve;

[0030] 3. Energy storage device. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 The present invention discloses a three-source heat pump module system based on PVT, comprising:

[0033] PVT component 1, the PVT component 1 includes a circulation pipeline 11 and a solar storage direct and flexible control system 12;

[0034] A three-source heat pump system 2, comprising an evaporator assembly 21, a condenser 22, a compressor 23, and an expansion valve 24;

[0035] The evaporator assembly 21 includes a water source evaporator 211, an air source evaporator 212 and a ground source evaporator 213 which are arranged in parallel;

[0036] The water source evaporator 211 is connected to the circulation pipeline 11;

[0037] The air source evaporator 212 is connected to the ambient air circulation pipeline 01;

[0038] The ground source evaporator 213 is connected to the geothermal circulation pipeline 02;

[0039] The evaporator assembly 21 also includes a first control valve connected to each evaporator, so that the system activates the corresponding component according to the environmental conditions;

[0040] The energy storage device 3 is connected to the three-source heat pump system 2 and is used to store thermal energy.

[0041] In this application, the circulation pipe 11 in the PVT assembly 1 is used to absorb heat from the surface of the photovoltaic panel, raise the medium inside the circulation pipe 11 to a low grade (30°C), and transfer the heat to the water source evaporator 211 through the circulation pipe 11, so as to perform heat exchange through the water source evaporator 211 and raise the refrigerant inside the water source evaporator 211 to a high grade (55°C);

[0042] Similarly, the air source evaporator 212 and the ground source evaporator 213 can absorb the heat in the ambient air and the ground heat source into the corresponding evaporator through the above process, and finally heat the water inside the energy storage device 3 through the condenser 22 and the water inside the energy storage device 3 to heat and store it;

[0043] This application adopts a water source evaporator 211, an air source evaporator 212 and a ground source evaporator 213 to form a three-source heat pump. Each evaporator can act independently or in coordination to adapt to different environmental conditions. For example, in winter in cold areas, the ground source evaporator 213 can be activated for heat conversion, and the water source evaporator 211 can be activated for collaborative operation when there is sunlight.

[0044] In a preferred embodiment, the PVT component 1 is integrated with the three-source heat pump system 2 to reduce maintenance costs, and by adopting standardized components and optimizing system integration, the purpose of facilitating installation and transportation is achieved.

[0045] It should be noted that the circulation pipeline 11, the ambient air circulation pipeline 01 and the geothermal circulation pipeline 02 are all filled with heat exchange medium, as well as a flow monitoring device, a circulation pump and a second control valve for driving the circulation of the heat exchange medium;

[0046] The heat exchange medium is a 10% ethylene glycol solution to prevent the medium inside the pipeline from freezing when the temperature is low.

[0047] In the present application, a four-way valve 25 is further provided between the evaporator assembly 21 and the condenser 22;

[0048] The four-way valve 25 is used to switch the circulation direction inside the three-source heat pump system 2 according to the environmental conditions, so as to change from the heat storage mode to the indoor cooling mode.

[0049] It should be noted that environmentally friendly refrigerants such as CO2 circulate inside the water source evaporator 211, the air source evaporator 212 and the ground source evaporator 213, and the refrigerant can be replaced by a refrigerant with equivalent effect in the art.

[0050] It should be noted that the energy storage device 3 is provided with a circulation pipe, a circulation pump and a third control valve connected to the three-source heat pump system 2, and the energy storage device 3 is an insulated water tank.

[0051] In the present application, the solar-storage-direct-flexible control system 12 is electrically connected to the three-source heat pump system 2 and the user end.

[0052] Finally, it should be noted that a control system is also included, and the control system is electrically connected to the PVT component 1, the three-source heat pump system 2 and the energy storage device 3;

[0053] The control system is used to monitor system operating parameters in real time to optimize operating strategies.

[0054] This application uses Internet of Things technology to monitor system operating parameters in real time, such as compressor suction and exhaust pressure, antifreeze flow, etc., optimizes operating strategies, improves system stability and dynamic adaptability, thereby maximizing the comprehensive energy efficiency COP value, and solves the problem of low energy efficiency of traditional heat pump systems. The application scenarios prioritize solving the heating and cooling needs of office and living areas in buildings, and gradually expand to multiple fields such as industry and agriculture.

[0055] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0056] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] In addition, "plurality" means two or more.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-source heat pump module system based on PVT, characterized in that: include: A PVT component (1), the PVT component (1) comprising a circulation pipeline (11) and a solar-storage direct-flexible control system (12); A three-source heat pump system (2), the three-source heat pump system (2) comprising an evaporator assembly (21), a condenser (22), a compressor (23), and an expansion valve (24); The evaporator assembly (21) includes a water source evaporator (211), an air source evaporator (212), and a ground source evaporator (213) arranged in parallel; The water source evaporator (211) is connected to the circulation pipeline (11); The air source evaporator (212) is connected to the ambient air circulation pipeline (01); The ground source evaporator (213) is connected to the geothermal circulation pipeline (02); The evaporator assembly (21) further comprises a first control valve connected to each evaporator, so that the system activates corresponding components according to environmental conditions; An energy storage device (3) is connected to the three-source heat pump system (2) and is used to store thermal energy.

2. The PVT-based three-source heat pump module system according to claim 1, characterized in that: The circulation pipeline (11), the ambient air circulation pipeline (01) and the geothermal circulation pipeline (02) are all filled with a heat exchange medium, as well as a flow monitoring device, a circulation pump and a second control valve for driving the circulation of the heat exchange medium; The heat exchange medium is an ethylene glycol solution with a concentration of 10%.

3. The PVT-based three-source heat pump module system according to claim 1, characterized in that: A four-way valve (25) is also provided between the evaporator assembly (21) and the condenser (22); The four-way valve (25) is used to switch the circulation direction according to environmental conditions.

4. The PVT-based three-source heat pump module system according to claim 1, characterized in that: Environmentally friendly refrigerants such as CO2 circulate inside the water source evaporator (211), the air source evaporator (212) and the ground source evaporator (213).

5. The PVT-based three-source heat pump module system according to claim 1, characterized in that: The energy storage device (3) is provided with a circulation pipe connected to the three-source heat pump system (2), a circulation pump and a third control valve.

6. The PVT-based three-source heat pump module system according to claim 1, characterized in that: The solar-storage direct-flexible control system (12) is electrically connected to the three-source heat pump system (2) and the user end.

7. A PVT-based three-source heat pump module system according to any one of claims 1 to 6, characterized in that: It also includes a control system, which is electrically connected to the PVT component (1), the three-source heat pump system (2) and the energy storage device (3); The control system is used to monitor system operating parameters in real time to optimize operating strategies.

Images