A shallow geothermal energy and air source and PV / T coupled zero-carbon energy supply system

Abstract

The utility model relates to green energy heating technical field, concretely is a kind of shallow geothermal energy and air source and PV / T coupling zero carbon energy supply system, including cold and hot user end, intelligent control module, still including shallow soil heat supplement system, shallow soil geothermal energy heating system, air energy heating system, heat exchange control assembly and heat pump host module;Shallow soil geothermal energy heating system and air energy heating system are connected with heat exchange control assembly;Heat exchange control assembly is connected with heat pump host module, and heat pump host module is connected with cold and hot user end;Shallow soil heat supplement system is connected with shallow soil geothermal energy heating system;The system multi-energy coupling collaborative utilization three kinds of renewable energy, satisfy building heating and domestic hot water, electricity demand;Air energy adapts transition season, geothermal energy guarantees winter heating, solar energy provides electric energy and domestic hot water, break through single energy bottleneck, build stable and reliable composite energy supply system.

Description

Technical Field

[0001] This utility model relates to the field of green energy heating technology, specifically a zero-carbon energy supply system that couples shallow geothermal energy with an air source and PV / T. Background Technology

[0002] Northern regions have a vast market and demand for clean heating, and also possess abundant renewable resources such as solar and geothermal energy.

[0003] However, in practical applications, the following problems are encountered: First, there is a seasonal imbalance between heating and cooling demand in northern buildings. If shallow soil source heat pumps are used alone in winter, long-term heat extraction will lead to a continuous drop in soil temperature, causing an imbalance between heat extraction and heat replenishment, which in turn reduces the system's energy efficiency. Second, single air source heat pumps are not adaptable enough to cold winters or extreme weather conditions. When the outdoor temperature is low, their energy efficiency will drop significantly, and they may even fail to start. Third, although solar energy resources are abundant during the non-heating season, the power generation efficiency of traditional photovoltaic modules will decrease due to the increase in temperature during power generation, and there is a lack of heat recovery and utilization mechanisms, resulting in a low comprehensive utilization rate of solar energy resources. Utility Model Content

[0004] The purpose of this invention is to provide a zero-carbon energy supply system that couples shallow geothermal energy with air source and PV / T, in order to solve the following problems existing in current functional systems: seasonal imbalance of building energy supply in northern regions; single shallow soil source heat pumps are prone to soil temperature drop and energy efficiency reduction in winter; single air source heat pumps experience a sharp drop in energy efficiency in low-temperature environments and may shut down in extreme weather; and while solar energy is abundant in the non-heating season, traditional photovoltaic modules have low high-temperature power generation efficiency and insufficient heat recovery.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a zero-carbon energy supply system coupling shallow geothermal energy with an air source and PV / T, comprising a cold and hot user terminal, an intelligent control module, and further comprising a shallow soil heating system, a shallow soil geothermal energy supply system, an air source heating system, a heat exchange control component, and a heat pump host module; the shallow soil geothermal energy supply system and the air source heating system are both connected to the heat exchange control component; the heat exchange control component is connected to the heat pump host module, and the heat pump host module is connected to the cold and hot user terminal; the shallow soil heating system is connected to the shallow soil geothermal energy supply system; the shallow soil heating system, the shallow soil geothermal energy supply system, the air source heating system, the heat exchange control component, and the heat pump host module are all electrically connected to the intelligent control module.

[0006] Furthermore, a sixth and a seventh pipeline are connected to one side of the user terminal for both heating and cooling. The seventh pipeline is equipped with a fifth valve and a user-side circulation pump. The heat pump main unit module includes an evaporator, a condenser, a compressor, a four-way switching valve, and a throttling valve. The evaporator, condenser, and compressor form a closed refrigerant circulation loop through the four-way switching valve. The discharge end of the compressor is connected to the first interface of the four-way switching valve. The second interface of the four-way switching valve is connected to the inlet end of the condenser. The outlet end of the condenser is connected to the inlet end of the evaporator through the throttling valve. The outlet end of the evaporator is connected to the third interface of the four-way switching valve. The fourth interface of the four-way switching valve is the refrigerant return end. Both the sixth and seventh pipelines are connected to the condenser. The intelligent control module is electrically connected to the evaporator, condenser, compressor, four-way switching valve, and throttling valve.

[0007] Furthermore, the heat exchange control component includes a wind-water heat exchanger, a fifth pipeline connected to the air outlet port of the wind-water heat exchanger, and a fourth valve installed on the fifth pipeline section, one end of which is connected to the evaporator.

[0008] Furthermore, the shallow soil geothermal energy heating system includes a shallow soil buried pipe, a second pipe and a first pipe connected to both ends of the shallow soil buried pipe, a first valve respectively installed on the second pipe and the first pipe, and a buried pipe side circulation pump installed on the second pipe. One end of the second pipe and the first pipe are both connected to a wind-water heat exchanger; the intelligent control module is electrically connected to the buried pipe side circulation pump.

[0009] Furthermore, the shallow soil heating system includes multiple PV / T collectors connected in series, an eighth pipe and a ninth pipe connected to the inlet and outlet of the PV / T collectors, a sixth valve installed on the eighth pipe and the ninth pipe respectively, a domestic hot water supply component connected to the eighth pipe and the ninth pipe, and a PV / T power conversion component electrically connected to the PV / T collectors; one end of the eighth pipe is connected to the first pipe and is located upstream of the first valve; the ninth pipe is connected to the second pipe and is located upstream of the first valve.

[0010] Furthermore, the domestic hot water supply component includes a domestic hot water tank, two tenth pipes connected to the domestic hot water tank, a domestic hot water pump and a seventh valve arranged sequentially on one of the tenth pipes, and one end of each of the two tenth pipes is connected to the eighth and ninth pipes respectively; the intelligent control module is electrically connected to the domestic hot water pump.

[0011] Furthermore, the PV / T power conversion component includes a power conversion device electrically connected to the PV / T collector and a power system electrically connected to the power conversion device; the power system is an external power grid or a household power supply terminal; the power conversion device is a micro-inverter or an inverter; the micro-inverter is electrically connected to both the household power supply terminal and the PV / T collector; the inverter is electrically connected to both the external power grid and the PV / T collector; and the intelligent control module is electrically connected to both the micro-inverter and the inverter.

[0012] Furthermore, the air source heating system includes an outdoor air intake device, a third pipe connected to one end of the outdoor air intake device, a second valve installed on a section of the third pipe, a fourth pipe connected to the third pipe and located on the side of the air inlet end of the second valve, and a third valve installed on a section of the fourth pipe; one end of the third pipe is connected to the air inlet end of the air-water heat exchanger; one end of the fourth pipe is connected to the fifth pipe and located downstream of the air outlet port of the fourth valve; the connection point between the fourth pipe and the third pipe is located on the air inlet side of the second valve.

[0013] Furthermore, the outdoor air intake device includes a connecting cover, openings respectively located on both sides of the connecting cover, a groove located on one side of the connecting cover and communicating with one opening, a conical hopper located on the other side of the connecting cover and communicating with the other opening, an axial flow fan located on both sides inside the connecting cover and corresponding to the two openings, a vertical plate located on the upper side inside the connecting cover, a motor located on one side of the vertical plate, and a sealing plate connected to the output shaft of the motor and slidably fitted in the groove, the sealing plate being able to cover the openings; one end of the conical hopper is connected to one end of the third pipeline; the intelligent control module is electrically connected to both the axial flow fan and the motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This system achieves the synergistic utilization of three renewable energy sources—air source energy, shallow geothermal energy, and solar energy—through multi-energy coupling, meeting the diverse needs of building heating and year-round domestic hot water supply. Air source energy is flexibly utilized to adapt to seasonal loads, shallow geothermal energy provides stable and efficient winter heating, and solar energy continuously provides electricity and heat, breaking through the climate adaptability bottleneck of single energy sources and constructing a composite energy supply system that combines stability and reliability.

[0016] 2. This system achieves "multi-purpose functionality" through innovative design, flexibly switching between multiple operating modes such as heating, cooling, and supplemental heating, reducing equipment investment and improving utilization. Unlike traditional air source heat pump and shallow geothermal energy systems that require separate heat pump units, this system utilizes the high-efficiency heat exchange characteristics of a wind-water heat exchanger to allow both heat sources to share the same heat pump unit module: During the heating season, the unit module enhances the quality of geothermal or air source heat to meet building heating needs; during the cooling season, a four-way reversing valve switches the refrigerant flow, transferring indoor heat to the soil for cooling; and during the non-heating season, surplus energy is used to supplement soil heat, balancing the soil's heat balance.

[0017] 3. This system improves the comprehensive utilization rate of resources by supplementing soil heat during the non-heating season. During the non-heating season, the system converts surplus solar energy (from PV / T collectors) and high-temperature air energy into heat energy through a wind-water heat exchanger, and injects it into the shallow soil through a buried pipe circulation system to replenish the soil's heat reserves and raise its temperature. This solves the problem of uneven heating and cooling that occurs when shallow soil geothermal energy is used in northern regions, improves the energy efficiency ratio of the system, and thus improves the resource utilization rate of air energy, shallow soil geothermal energy, and solar energy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the zero-carbon energy supply system of shallow geothermal energy coupled with an air source and PV / T according to this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the outdoor air intake device of this utility model;

[0020] Figure 3 This is a side view schematic diagram of the outdoor air intake device of this utility model;

[0021] Figure 4 This is a side view of the connecting cover of this utility model.

[0022] In the diagram: 1. Power conversion equipment; 2. Power system; 3. Shallow underground pipe; 4. Wind-water heat exchanger; 5. PV / T collector; 6. First pipeline; 7. Second pipeline; 8. First valve; 9. Circulation pump on the underground pipe side; 10. Outdoor air intake device; 11. Third pipeline; 12. Second valve; 13. Fourth pipeline; 14. Third valve; 15. Fifth pipeline; 16. Fourth valve; 17. Evaporator; 18. Four-way switching valve; 19. Compressor; 20. 21. Condenser; 22. Throttling valve; 23. Hot and cold user end; 24. Sixth pipeline; 25. Seventh pipeline; 26. User-side circulation pump; 27. Fifth valve; 28. Eighth pipeline; 29. ​​Ninth pipeline; 30. Sixth valve; 31. Tenth pipeline; 32. Seventh valve; 33. Domestic hot water pump; 34. Connecting cover; 35. Port; 36. Groove; 37. Conical hopper; 38. Axial flow fan; 39. Vertical plate; 40. Motor; 41. Sealing plate; 42. Domestic hot water tank. Detailed Implementation

[0023] Please see Figure 1-4 A zero-carbon energy supply system coupling shallow geothermal energy with an air source and a PV / T (PV / T) system includes a cold and heat user terminal 22, an intelligent control module, a shallow soil heating system, a shallow soil geothermal energy heating system, an air source heating system, a heat exchange control component, and a heat pump host module. Both the shallow soil geothermal energy heating system and the air source heating system are connected to the heat exchange control component. The heat exchange control component is connected to the heat pump host module, which is connected to the cold and heat user terminal 22. The shallow soil heating system is connected to the shallow soil geothermal energy heating system. The shallow soil heating system, the shallow soil geothermal energy heating system, the air source heating system, the heat exchange control component, and the heat pump host module are all electrically connected to the intelligent control module.

[0024] The user terminal 22 is connected to a sixth pipe 23 and a seventh pipe 24 on one side. A fifth valve 26 and a user-side circulation pump 25 are installed on the seventh pipe 24. The heat pump main unit module includes an evaporator 17, a condenser 20, a compressor 19, a four-way switching valve 18, and a throttle valve 21. The evaporator 17, condenser 20, and compressor 19 form a closed refrigerant circulation loop through the four-way switching valve 18. The discharge end of the compressor 19 is connected to the first interface of the four-way switching valve 18. The second port of 18 is connected to the inlet of condenser 20, and the outlet of condenser 20 is connected to the inlet of evaporator 17 through throttle valve 21; the outlet of evaporator 17 is connected to the third port of four-way switching valve 18, and the fourth port of four-way switching valve 18 is the refrigerant return port; the sixth pipe 23 and the seventh pipe 24 are both connected to condenser 20; the intelligent control module is electrically connected to evaporator 17, condenser 20, compressor 19, four-way switching valve 18 and throttle valve 21.

[0025] The heat exchange control assembly includes a water-air heat exchanger 4, a fifth pipe 15 connected to the air outlet port of the water-air heat exchanger 4, a fourth valve 16 installed on the pipe section of the fifth pipe 15, and one end of the fifth pipe 15 connected to the evaporator 17.

[0026] The shallow soil geothermal energy heating system includes a shallow soil buried pipe 3, a second pipe 7 and a first pipe 6 connected to both ends of the shallow soil buried pipe 3, a first valve 8 respectively installed on the second pipe 7 and the first pipe 6, and a buried pipe side circulation pump 9 installed on the second pipe 7. One end of the second pipe 7 and the first pipe 6 are both connected to the air-water heat exchanger 4; the intelligent control module is electrically connected to the buried pipe side circulation pump 9.

[0027] The shallow soil heating system includes multiple PV / T collectors 5 connected in series, an eighth pipe 27 and a ninth pipe 28 connected to the inlet and outlet of the PV / T collectors 5, a sixth valve 29 installed on the eighth pipe 27 and the ninth pipe 28 respectively, a domestic hot water supply component connected to the eighth pipe 27 and the ninth pipe 28, and a PV / T power conversion component electrically connected to the PV / T collectors 5; one end of the eighth pipe 27 is connected to the first pipe 6 and is located upstream of the first valve 8; the ninth pipe 28 is connected to the second pipe 7 and is located upstream of the first valve 8.

[0028] The domestic hot water supply component includes a domestic hot water tank 41, two tenth pipes 30 connected to the domestic hot water tank 41, a domestic hot water pump 32 and a seventh valve 31 arranged sequentially on one of the tenth pipes 30, and one end of each of the two tenth pipes 30 is connected to the eighth pipe 27 and the ninth pipe 28 respectively; the intelligent control module is electrically connected to the domestic hot water pump 32.

[0029] The PV / T power conversion module includes a power conversion device 1 electrically connected to the PV / T collector 5 and a power system 2 electrically connected to the power conversion device 1; the power system 2 is an external power grid or a household power supply terminal, the power conversion device 1 is a micro-inverter or an inverter, the micro-inverter is electrically connected to both the household power supply terminal and the PV / T collector 5, and the inverter is electrically connected to both the external power grid and the PV / T collector 5; the intelligent control module is electrically connected to both the micro-inverter and the inverter.

[0030] The air source heat pump heating system includes an outdoor air intake device 10, a third pipe 11 connected to one end of the outdoor air intake device 10, a second valve 12 installed on a section of the third pipe 11, a fourth pipe 13 connected to the third pipe 11 and located on the side of the air inlet end of the second valve 12, and a third valve 14 installed on a section of the fourth pipe 13; one end of the third pipe 11 is connected to the air inlet end of the air-water heat exchanger 4; one end of the fourth pipe 13 is connected to the fifth pipe 15 and located downstream of the air outlet port of the fourth valve 16; the connection between the fourth pipe 13 and the third pipe 11 is located on the air inlet side of the second valve 12.

[0031] The outdoor air intake device 10 includes a connecting cover 33, openings 34 respectively located on both sides of the connecting cover 33, a groove 35 located on one side of the connecting cover 33 and communicating with one opening 34, a conical hopper 36 located on the other side of the connecting cover 33 and communicating with the other opening 34, an axial flow fan 37 located on both sides inside the connecting cover 33 and corresponding to the two openings 34, a vertical plate 38 located on the upper side inside the connecting cover 33, a motor 39 located on one side of the vertical plate 38, and a sealing plate 40 connected to the output shaft of the motor 39 and slidably fitted in the groove 35, the sealing plate 40 covering the opening 34; a sealing ring is provided in the groove 35; one end of the conical hopper 36 is connected to one end of the third pipeline 11; the intelligent control module is electrically connected to both the axial flow fan 37 and the motor 39.

[0032] In this embodiment, the motor 39 drives the sealing plate 40 to slide within the groove 35. By blocking or opening the opening 34, in cases of heavy rainfall, extreme winter weather, or when the outdoor air intake device 10 is not required, the sealing plate 40 can be driven by the motor 39 to slide until the opening 34 is completely blocked. The sealing plate 40, in conjunction with the groove 35, forms a sealing structure, preventing rainwater from seeping into the axial flow fan 37. At the same time, it prevents dust and debris from adhering to the dustproof screen of the axial flow fan 37, thus providing protection and preventing equipment failure due to water ingress or dust accumulation. It also reduces energy loss during non-operational periods and extends the service life of the axial flow fan 37. The axial flow fan 37 delivers air through the conical hopper 36 to the third pipeline 11 for heat exchange with the air-water heat exchanger 4.

[0033] The first valve 8, the second valve 12, the third valve 14, the fourth valve 16, the fifth valve 26, the sixth valve 29, and the seventh valve 31 are all electric proportional regulating valves. In actual operation, they can be completely closed or proportionally regulated under the drive of the intelligent control module, depending on the working conditions.

[0034] The installed capacity of multiple PV / T collectors 5 can meet the system's annual comprehensive power consumption needs, enabling the entire system to balance power consumption and power generation, achieve zero carbon emissions during operation, and can be promoted and applied in zero-carbon heating.

[0035] Working process and principle: The system coordinates the operation of the shallow soil heating system, the shallow soil geothermal energy heating system, the air source heating system, the heat exchange control components and the heat pump host module through the intelligent control module to achieve multi-energy coupling and intelligent mode switching.

[0036] At the beginning and end of the heating season, the intelligent control module activates the air source heating mode. The axial flow fan 37, the third valve 14, and the fifth valve 26 of the outdoor air inlet device 10 are opened, while the second valve 12 is closed. The motor 39 drives the sealing plate 40 to rotate and open the opening 34. The axial flow fan 37 draws in outdoor air, which enters the evaporator 17 through the conical hopper 36, the fourth pipe 13, and the fifth pipe 15. The compressor 19 pressurizes the refrigerant through the four-way switching valve 18 and sends it into the condenser 20. After the outdoor air exchanges heat with the evaporator 17, the user-side circulation pump 25 drives the medium to exchange heat with the condenser 20 to achieve heating.

[0037] When the outdoor temperature drops, causing insufficient energy efficiency of the air source heat pump, the system switches to shallow soil geothermal energy heating mode. The third valve 14 is closed, and the axial flow fan 37, the second valve 12, the two first valves 8 and the underground pipe side circulation pump 9 are turned on. After the underground pipe circulating water absorbs the soil heat, it exchanges heat with the outdoor air in the air-water heat exchanger 4. The heated air is then boosted by the heat pump main module for heating. If there is surplus hot water in the PV / T collector 5, the two sixth valves 29 can be opened and the two seventh valves 31 can be closed to mix the PV / T hot water with the underground pipe circulating water and then enter the air-water heat exchanger 4 to achieve three-energy coupling heating.

[0038] During the non-heating season, the system enters the shallow soil heating mode. The axial flow fan 37, the underground pipe side circulation pump 9, the second valve 12 and the two first valves 8 are opened, and the third valve 14 is closed. The high-temperature outdoor air and the underground pipe circulating water exchange heat in the air-water heat exchanger 4 and store the heat in the soil. At the same time, the PV / T collector 5 converts solar energy into electrical energy and thermal energy. The electrical energy is connected to the power grid or household electricity terminal, and the hot water is stored in the domestic hot water tank 41. The excess thermal energy is mixed with the underground pipe circulating water through the eighth pipe 27, the ninth pipe 28 and the sixth valve 29 and then stored in the soil to achieve thermal balance.

[0039] During the high-temperature period of the non-heating season, the system switches to summer cooling mode. The axial fan 37 adjusts its direction, and the underground pipe side circulation pump 9, the fourth valve 16, the second valve 12, and the two first valves 8 are opened. The third valve 14 is closed, and the four-way switching valve 18 switches the refrigerant flow direction. After the evaporator 17 absorbs indoor heat, it transfers the heat to the underground pipe circulating water through the condenser 20 and the air-water heat exchanger 4, where it is stored in the soil. If the hot water temperature of the PV / T collector 5 is high, the two sixth valves 29 are opened to simultaneously store the excess solar heat to meet the cooling demand and improve resource utilization.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A zero-carbon energy supply system coupling shallow geothermal energy with an air source and PV / T, comprising a heating and cooling user terminal (22) and an intelligent control module, characterized in that, It also includes a shallow soil heating system, a shallow soil geothermal energy heating system, an air source heating system, a heat exchange control component, and a heat pump host module; the shallow soil geothermal energy heating system and the air source heating system are both connected to the heat exchange control component; the heat exchange control component is connected to the heat pump host module, and the heat pump host module is connected to the cold and hot user terminal (22); the shallow soil heating system is connected to the shallow soil geothermal energy heating system; the shallow soil heating system, the shallow soil geothermal energy heating system, the air source heating system, the heat exchange control component, and the heat pump host module are all electrically connected to the intelligent control module.

2. The zero-carbon energy supply system according to claim 1, characterized in that, The user terminal (22) is connected to a sixth pipe (23) and a seventh pipe (24) on one side. The seventh pipe (24) is equipped with a fifth valve (26) and a user-side circulation pump (25). The heat pump main unit module includes an evaporator (17), a condenser (20), a compressor (19), a four-way switching valve (18), and a throttle valve (21). The evaporator (17), condenser (20), and compressor (19) form a closed refrigerant circulation loop through the four-way switching valve (18). The exhaust end of the compressor (19) is connected to the first interface of the four-way switching valve (18). The second port of valve (18) is connected to the inlet of condenser (20), and the outlet of condenser (20) is connected to the inlet of evaporator (17) through throttle valve (21); the outlet of evaporator (17) is connected to the third port of four-way switching valve (18), and the fourth port of four-way switching valve (18) is the refrigerant return port; the sixth pipeline (23) and the seventh pipeline (24) are both connected to condenser (20); the intelligent control module is electrically connected to evaporator (17), condenser (20), compressor (19), four-way switching valve (18) and throttle valve (21).

3. The zero-carbon energy supply system according to claim 2, characterized in that, The heat exchange control assembly includes a wind-water heat exchanger (4), a fifth pipeline (15) connected to the air outlet port of the wind-water heat exchanger (4), and a fourth valve (16) provided on the fifth pipeline (15) section. One end of the fifth pipeline (15) is connected to the evaporator (17).

4. The zero-carbon energy supply system according to claim 3, characterized in that, The shallow soil geothermal energy heating system includes a shallow soil buried pipe (3), a second pipe (7) and a first pipe (6) connected to both ends of the shallow soil buried pipe (3), a first valve (8) respectively installed on the second pipe (7) and the first pipe (6), and a buried pipe side circulation pump (9) installed on the second pipe (7). One end of the second pipe (7) and the first pipe (6) are both connected to the air-water heat exchanger (4). The intelligent control module is electrically connected to the buried pipe side circulation pump (9).

5. The zero-carbon energy supply system according to claim 4, characterized in that, The shallow soil heating system includes multiple PV / T collectors (5) connected in series, an eighth pipe (27) and a ninth pipe (28) connected to the inlet and outlet of the PV / T collectors (5), a sixth valve (29) respectively installed on the eighth pipe (27) and the ninth pipe (28), a domestic hot water supply component connected to the eighth pipe (27) and the ninth pipe (28), and a PV / T power conversion component electrically connected to the PV / T collectors (5); one end of the eighth pipe (27) is connected to the first pipe (6) and is located upstream of the first valve (8); the ninth pipe (28) is connected to the second pipe (7) and is located upstream of the first valve (8).

6. The zero-carbon energy supply system according to claim 5, characterized in that, The domestic hot water supply assembly includes a domestic hot water tank (41), two tenth pipes (30) connected to the domestic hot water tank (41), a domestic hot water pump (32) and a seventh valve (31) arranged sequentially on one of the tenth pipes (30), and one end of each of the two tenth pipes (30) is connected to the eighth pipe (27) and the ninth pipe (28) respectively; the intelligent control module is electrically connected to the domestic hot water pump (32).

7. The zero-carbon energy supply system according to claim 6, characterized in that, The PV / T power conversion assembly includes a power conversion device (1) electrically connected to the PV / T collector (5) and a power system (2) electrically connected to the power conversion device (1); the power system (2) is an external power grid or a household power terminal, the power conversion device (1) is a micro-inverter or an inverter, the micro-inverter is electrically connected to both the household power terminal and the PV / T collector (5), and the inverter is electrically connected to both the external power grid and the PV / T collector (5); the intelligent control module is electrically connected to both the micro-inverter and the inverter.

8. The zero-carbon energy supply system according to claim 3, characterized in that, The air-source heat pump system includes an outdoor air inlet device (10), a third pipe (11) connected to one end of the outdoor air inlet device (10), a second valve (12) installed on the third pipe (11), a fourth pipe (13) connected to the third pipe (11) and located on the side of the air inlet end of the second valve (12), and a third valve (14) installed on the fourth pipe (13); one end of the third pipe (11) is connected to the air inlet end of the air-water heat exchanger (4); one end of the fourth pipe (13) is connected to the fifth pipe (15) and located downstream of the air outlet port of the fourth valve (16); the connection between the fourth pipe (13) and the third pipe (11) is located on the air inlet side of the second valve (12).

9. The zero-carbon energy supply system according to claim 8, characterized in that, The outdoor air intake device (10) includes a connecting cover (33), openings (34) respectively located on both sides of the connecting cover (33), a groove (35) located on one side of the connecting cover (33) and connected to one opening (34), a conical bucket (36) located on the other side of the connecting cover (33) and connected to another opening (34), an axial flow fan (37) located on both sides inside the connecting cover (33) and corresponding to the two openings (34), a vertical plate (38) located on the upper side inside the connecting cover (33), a motor (39) located on one side of the vertical plate (38), and a sealing plate (40) connected to the output shaft of the motor (39) and slidably fitted in the groove (35). The sealing plate (40) can cover the opening (34). One end of the conical bucket (36) is connected to one end of the third pipeline (11). The intelligent control module is electrically connected to both the axial flow fan (37) and the motor (39).

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