Energy supply system and device based on zero-carbon building multi-energy coupling

Abstract

The invention relates to the technical field of comprehensive application of renewable energy sources, in particular to a multi-energy coupling energy supply system based on a zero-carbon building and a device thereof, and solves the problems that an existing energy system uses single energy, the energy supply effect is unstable, and energy is wasted. And current transmission in the line is greatly influenced by external low temperature. An energy supply system based on zero-carbon building multi-energy coupling comprises a solar power generation system, a heat supply system, a temperature detection module, a master control terminal and a wireless signal transceiver, and the heat supply system comprises a solar water heater and a heat pump. When hot water is supplied through the heat pump and the solar water heater, the conveying line of the solar photovoltaic panel is heated, so that the influence of low temperature on the conveying line of the solar photovoltaic panel is reduced, and the loss of current of the solar photovoltaic panel at a terminal in the conveying process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of comprehensive application of renewable energy, and in particular to an energy supply system and device based on multi-energy coupling of zero-carbon buildings. Background Art

[0002] Renewable energy refers to energy that can be recycled and regenerated. Renewable energy includes solar energy, hydropower, wind energy, biomass energy, wave energy, tidal energy, ocean temperature difference energy, geothermal energy, etc. They can be recycled and regenerated in nature. They are inexhaustible energy and can be automatically regenerated without human participation. They are a type of energy that is different from non-renewable energy that will be exhausted.

[0003] Zero-carbon buildings are a type of comprehensive application of renewable energy. They refer to buildings with zero carbon emissions that can operate independently of the power grid and can rely on solar or wind energy. This type of building does not consume coal, oil, electricity and other energy sources. All of its energy consumption throughout the year is provided by renewable energy generated on site. Zero-carbon buildings not only use various means to reduce their own pollution, but also make rational use of waste and use environmentally friendly and clean energy to reduce carbon dioxide emissions, ultimately achieving the ideal state of "zero wastewater, zero energy consumption, and zero waste."

[0004] However, the existing energy system uses a single energy source, and its energy supply effect is not stable, and there is a disadvantage of energy waste. At the same time, the photovoltaic power supply line is located outside the building, and the current transmission inside the line is greatly affected by the external low temperature; therefore, it does not meet the existing needs. In this regard, we propose an energy supply system and its device based on multi-energy coupling of zero-carbon buildings. Summary of the invention

[0005] The purpose of the present invention is to provide an energy supply system and device based on multi-energy coupling of zero-carbon buildings, so as to solve the problems proposed in the above background technology that the existing energy system uses a single energy source, its energy supply effect is not stable, and there is a waste of energy. At the same time, the photovoltaic power supply line is located outside the building, and the current transmission inside the line is greatly affected by the external low temperature.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an energy supply system based on multi-energy coupling of zero-carbon buildings, comprising a solar power generation system, a heating system, a temperature detection module, a main control terminal and a wireless signal transceiver, wherein the heating system comprises a solar water heater and a heat pump, and the temperature detection module, the solar power generation system, the heating system and the main control terminal transmit and receive information through a wireless signal transceiver;

[0007] The solar power generation system includes a solar photovoltaic panel and a battery. Two pairs of electrodes are provided on the upper surface of the battery, one pair of electrodes is used to store current, and the other pair of electrodes is used to output current. Two current input lines are connected between the solar photovoltaic panel and the battery, and two current output lines are connected between the battery and the interior of a building. One end of the current input line is connected to the solar photovoltaic panel, and the other end of the current input line is connected to the electrode of the battery that stores current. One end of the current output line extends into the interior of the building, and the other end of the current output line is connected to the electrode of the battery that outputs current.

[0008] A power supply device based on a power supply system of a zero-carbon building multi-energy coupling, wherein the water inlet end of the solar water heater is connected to a solar water heater water inlet pipe, the water outlet end of the solar water heater is connected to a solar water heater water outlet pipe, the water inlet end of the heat pump is connected to a heat pump water inlet pipe, the water outlet end of the heat pump is connected to a heat pump water outlet pipe, and a water outlet three-way water valve is arranged at the ends of the solar water heater water outlet pipe and the heat pump water outlet pipe close to each other, two input ends of the water outlet three-way water valve are respectively connected to the solar water heater water outlet pipe and the heat pump water outlet pipe, and the output end of the water outlet three-way water valve is connected to a main water outlet pipe, the ends of the solar water heater water inlet pipe and the heat pump water inlet pipe close to each other are connected to the water inlet three-way water valve, two output ends of the water inlet three-way water valve are respectively connected to the solar water heater water inlet pipe and the heat pump water inlet pipe, the input end of the water inlet three-way water valve is connected to the main water inlet pipe, the other end of the main water outlet pipe extends to the interior of the building to supply water to the interior of the building, and the other end of the main water inlet pipe is connected to a municipal water network.

[0009] Preferably, the current input circuit includes a first electrode connecting wire, one end of which is connected to the battery electrode, and the other end of the first electrode connecting wire is divided into an input first branch and an input second branch, and the input first branch and the input second branch are merged with each other near the solar photovoltaic panel and connected to the solar photovoltaic panel. The current output circuit includes a second electrode connecting wire, one end of which is connected to the battery electrode, and the other end of the second electrode connecting wire is divided into an output first branch and an output second branch, and the output first branch and the output second branch are merged when entering the building and extend to the interior of the building.

[0010] Preferably, the main water outlet pipe includes a water outlet main pipe, one end of the water outlet main pipe is connected to the output end of the water outlet three-way water valve, the other end of the water outlet main pipe is connected to a hot water storage barrel, a hot water supply pipe is fixed to the outside of the hot water storage barrel, one end of the hot water supply pipe extends to the inside of the hot water storage barrel, and the other end of the hot water supply pipe extends to the interior of the building.

[0011] Preferably, water outlet manifolds are provided on the outer sides of both ends of the water outlet main pipe, and three-way solenoid valves are provided inside the connection between both ends of the water outlet manifold and the water outlet main pipe.

[0012] Preferably, one end of the water outlet main pipe is covered with a second insulation sleeve, and the other end of the water outlet main pipe is covered with a fourth insulation sleeve on the outside, the second insulation sleeve and the fourth insulation sleeve are respectively located between the two ends of the two water outlet branch pipes, the input first branch and the output second branch are respectively spirally wound around the outside of the two ends of the water outlet main pipe, and the input first branch is located between the second insulation sleeve and the water outlet main pipe, and the output second branch is located between the fourth insulation sleeve and the water outlet main pipe.

[0013] Preferably, the main water inlet pipe comprises a water inlet main pipe, one end of which is connected to the input end of the water inlet three-way water valve, and the other end of which is connected to the production water network.

[0014] Preferably, water inlet diverter pipes are provided outside both ends of the water inlet main pipe, and three-way solenoid valves are provided inside the connection between both ends of the water inlet diverter pipe and the water inlet main pipe.

[0015] Preferably, a first insulation sleeve is sheathed on the outside of one end of the water inlet main pipe, and a third insulation sleeve is sheathed on the outside of the other end of the water inlet main pipe. The first insulation sleeve and the third insulation sleeve are located between the ends of the two water inlet diverter pipes.

[0016] Preferably, the second input branch and the first output branch are respectively spirally wound around the outer sides of both ends of the water inlet main pipe, the second input branch is located between the first insulation sleeve and the water inlet main pipe, and the first output branch is located between the third insulation sleeve and the water inlet main pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention heats the transmission line of the solar photovoltaic panel when supplying hot water through a heat pump and a solar water heater, thereby reducing the impact of low temperature on the transmission line of the solar photovoltaic panel and reducing the loss of the solar photovoltaic panel current at the terminal of the transmission process;

[0019] 2. The present invention divides the input circuit and the output circuit of the battery into two circuits, which are used respectively when the outside temperature is high or low, and connects the circuits used in the two different situations to the water inlet pipe and the water outlet pipe of the solar water heater and the heat pump respectively, so as to avoid the softening of the circuit skin due to the outside temperature being too high, or the hardening and cracking of the circuit skin due to the outside temperature being too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a connection schematic diagram of the pipeline of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the current input circuit and the current output circuit of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the main water inlet pipe of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the main water outlet pipe of the present invention;

[0025] Figure 6 This is an operation block diagram of the energy supply system of the present invention when supplying hot water;

[0026] Figure 7 This is an operational block diagram of the energy supply system of the present invention when water is entering.

[0027] In the figure: 1. solar water heater; 2. solar photovoltaic panel; 3. heat pump; 4. battery; 5. solar water heater water inlet pipe; 6. solar water heater water outlet pipe; 7. heat pump water inlet pipe; 8. heat pump water outlet pipe; 9. current input circuit; 91. first electrode connecting line; 92. input first branch; 93. input second branch; 10. current output circuit; 101. second electrode connecting line; 102. output first branch; 103. output second branch; 11. outlet three-way valve; 12. inlet three-way valve; 13. main outlet pipe; 131. outlet main pipe; 132. outlet manifold; 14. main inlet pipe; 141. inlet main pipe; 142. inlet manifold; 15. first insulation sleeve; 16. second insulation sleeve; 17. third insulation sleeve; 18. fourth insulation sleeve; 19. hot water storage tank; 20. hot water supply pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] A power supply system based on multi-energy coupling of zero-carbon buildings includes a solar power generation system, a heating system, a temperature detection module, a main control terminal and a wireless signal transceiver. The heating system includes a solar water heater 1 and a heat pump 3. The temperature detection module, the solar power generation system, the heating system and the main control terminal transmit and receive information through a wireless signal transceiver.

[0030] The solar power generation system includes a solar photovoltaic panel 2 and a battery 4. Two pairs of electrodes are provided on the upper surface of the battery 4, one pair of electrodes is used to store current, and the other pair of electrodes is used to output current. Two current input lines 9 are connected between the solar photovoltaic panel 2 and the battery 4, and two current output lines 10 are connected between the battery 4 and the interior of the building. One end of the current input line 9 is connected to the solar photovoltaic panel 2, and the other end of the current input line 9 is connected to the electrode of the battery 4 that stores current. One end of the current output line 10 extends into the interior of the building, and the other end of the current output line 10 is connected to the electrode of the battery 4 that outputs current.

[0031] The temperature detection module includes a first temperature sensor, a second temperature sensor and a third temperature sensor. The first temperature sensor is installed inside the water storage tank of the solar water heater 1, the second temperature sensor is installed inside the water storage tank of the heat pump 3, and the third temperature sensor is installed on the outer surface of the shell of the solar water heater 1 and the heat pump 3. The third temperature sensor is used to monitor the external temperature in real time.

[0032] like Figures 1 to 5 As shown, an energy supply device based on a zero-carbon building multi-energy coupling energy supply system, the water inlet end of the solar water heater 1 is connected to a solar water heater water inlet pipe 5, the water outlet end of the solar water heater 1 is connected to a solar water heater water outlet pipe 6, the water inlet end of the heat pump 3 is connected to a heat pump water inlet pipe 7, the water outlet end of the heat pump 3 is connected to a heat pump water outlet pipe 8, and a water outlet three-way water valve 11 is provided at the ends of the solar water heater water outlet pipe 6 and the heat pump water outlet pipe 8 close to each other, the two input ends of the water outlet three-way water valve 11 are respectively connected to the solar water heater water outlet pipe 6 and the heat pump water outlet pipe 8, and the output end of the water outlet three-way water valve 11 is connected to the solar water heater water outlet pipe 6 and the heat pump water outlet pipe 8. A main water outlet pipe 13 is connected, and the ends of the solar water heater inlet pipe 5 and the heat pump inlet pipe 7 that are close to each other are connected with a water inlet three-way water valve 12. The two output ends of the water inlet three-way water valve 12 are respectively connected to the solar water heater inlet pipe 5 and the heat pump inlet pipe 7. The input end of the water inlet three-way water valve 12 is connected to the main water inlet pipe 14. The other end of the main water outlet pipe 13 extends to the interior of the building to supply water to the interior of the building. The other end of the main water inlet pipe 14 is connected to the municipal water network. The water is heated by the solar water heater 1 and the heat pump 3 and supplied to the interior of the building to ensure the daily hot water needs of the residents inside the building.

[0033] The current input circuit 9 includes a first electrode connection line 91, one end of which is connected to the electrode of the battery 4, and the other end of the first electrode connection line 91 is divided into an input first branch 92 and an input second branch 93, and the input first branch 92 and the input second branch 93 are merged with each other near the solar photovoltaic panel 2 and connected to the solar photovoltaic panel 2. The current output circuit 10 includes a second electrode connection line 101, one end of which is connected to the electrode of the battery 4, and the other end of the second electrode connection line 101 is divided into an output first branch 102 and an output second branch 103, and the output first branch 101 02 and the second output branch 103 merge and extend into the interior of the building when entering the building, dividing the current input line 9 and the current output line 10 into two paths. When the outside temperature is too low, the current generated by the solar photovoltaic panel 2 is stored in the battery 4 by using the first input branch 92. When the outside temperature is too high, the current generated by the solar photovoltaic panel 2 is stored in the battery 4 by using the second input branch 93. When the outside temperature is too low, the current stored in the battery 4 is supplied to the interior of the building by using the second output branch 103. When the outside temperature is too high, the current stored in the battery 4 is supplied to the interior of the building by using the first output branch 102.

[0034] The main water outlet pipe 13 includes a water outlet main pipe 131, one end of which is connected to the output end of the water outlet three-way water valve 11, and the other end of the water outlet main pipe 131 is connected to a hot water storage barrel 19. A hot water supply pipe 20 is fixed to the outside of the hot water storage barrel 19, one end of the hot water supply pipe 20 extends to the inside of the hot water storage barrel 19, and the other end of the hot water supply pipe 20 extends to the interior of the building. Water outlet shunt pipes 132 are arranged on the outside of both ends of the water outlet main pipe 131, and three-way solenoid valves are arranged inside the connection between the two ends of the water outlet shunt pipe 132 and the water outlet main pipe 131. The water is diverted to ensure that when the external environment temperature is normal or too high, the three-way solenoid valve arranged at the connection between the water outlet main pipe 131 and the water outlet branch pipe 132 is started to cut off the water flow in the water outlet main pipe 131 and guide the water flow to the inside of the water outlet branch pipe 132, so that the hot water generated by the solar water heater 1 and the heat pump 3 will not flow through the water pipe passing through the second insulation sleeve 16 and the fourth insulation sleeve 18, thereby avoiding the hot water flowing through the second insulation sleeve 16 and the fourth insulation sleeve 18 and causing the temperature of the input first branch 92 to rise, thereby avoiding the loss of the current generated by the solar photovoltaic panel 2 during the transmission process.

[0035] One end of the water outlet pipe 131 is covered with a second insulation sleeve 16, and the other end of the water outlet pipe 131 is covered with a fourth insulation sleeve 18. The second insulation sleeve 16 and the fourth insulation sleeve 18 are respectively located between the two ends of the two water outlet shunt pipes 132. The input first branch 92 and the output second branch 103 are respectively spirally wound around the outer sides of the two ends of the water outlet pipe 131, and the input first branch 92 is located between the second insulation sleeve 16 and the water outlet pipe 131, and the output second branch 103 is located between the fourth insulation sleeve 18 and the water outlet pipe 131. When the outside temperature is low, the three-way solenoid valve provided at the connection between the water outlet main pipe 131 and the water outlet shunt pipe 132 of the second insulation sleeve 16 and the fourth insulation sleeve 18 is started to cut off the water outlet shunt pipe 132, so as to ensure that hot water flows from the water outlet main pipe 131 and the internal temperature of the first input branch 92 remains constant, thereby avoiding embrittlement of the first input branch 92 due to the decrease in outside temperature, and at the same time avoiding the increase in internal resistance of the line due to the decrease in outside temperature caused by the current transmission in the first input branch 92, thereby avoiding the increase in line loss during transmission due to the decrease in temperature.

[0036] The main water inlet pipe 14 includes a water inlet pipe 141, one end of which is connected to the input end of the water inlet three-way water valve 12, and the other end of the water inlet pipe 141 is connected to the municipal water network. Both ends of the water inlet pipe 141 are provided with water inlet diverter pipes 142 on the outside, and both ends of the water inlet diverter pipe 142 are provided with three-way solenoid valves inside the connection between the water inlet pipe 141 and the water inlet pipe 141. The water in the water inlet pipe 141 is diverted through the water inlet diverter pipe 142 to ensure that the connection between the water inlet pipe 141 and the water inlet diverter pipe 142 is normal or too low. The three-way solenoid valve is started to cut off the water flow in the water inlet main pipe 141 and introduce the water flow into the water inlet diverter pipe 142. The low-temperature water circulated by the solar water heater 1 and the heat pump 3 will not flow through the pipeline passing through the first insulation sleeve 15 and the third insulation sleeve 17, thereby preventing the low-temperature water from lowering the line temperature due to flowing through the pipeline passing through the first insulation sleeve 15 and the third insulation sleeve 17, thereby preventing the internal resistance of the line from increasing due to the temperature drop, thereby preventing the current generated by the solar photovoltaic panel 2 from being lost during the transmission process.

[0037] The first insulation sleeve 15 is sleeved on the outside of one end of the water inlet main pipe 141, and the third insulation sleeve 17 is sleeved on the outside of the other end of the water inlet main pipe 141. The first insulation sleeve 15 and the third insulation sleeve 17 are respectively located between the two ends of the two water inlet diverter pipes 142. The second input branch 93 and the first output branch 102 are respectively spirally wound around the outside of the two ends of the water inlet main pipe 141. The second input branch 93 is located between the first insulation sleeve 15 and the water inlet main pipe 141, and the first output branch 102 is located between the third insulation sleeve 17 and the water inlet main pipe 141. When the external temperature is too high, the water inlet main pipe 141 and the water inlet diverter pipe 142 are connected to the water inlet main pipe 141. The three-way solenoid valve at the connection of the shunt pipe 142 is started to cut off the water inlet shunt pipe 142 to ensure that the water flows in the water inlet main pipe 141 and does not enter the water inlet shunt pipe 142. The low-temperature water flow is used to cool the second input branch 93 and the first output branch 102. At the same time, the first insulation sleeve 15 and the third insulation sleeve 17 are used to ensure that the temperature of the second input branch 93 and the first output branch 102 spirally wound on the outside of the end of the water inlet main pipe 141 is constant, so that the second input branch 93 and the first output branch 102 will not cause the outer skin of the second input branch 93 and the first output branch 102 to soften due to the excessively high external temperature, causing safety hazards.

[0038] Working principle: First, low-temperature water is transported through the main water inlet pipe 14, and the low-temperature water enters the solar water heater 1 and the heat pump 3 through the solar water heater water inlet pipe 5 and the heat pump water inlet pipe 7 respectively. After the low-temperature water enters the solar water heater 1, the external sunlight directly shines on the solar water heater 1, so that the low-temperature water in the solar water heater 1 is heated. At the same time, the heat pump 3 relies on the heat energy in the air to heat the low-temperature water transported by the heat pump water inlet pipe 7. After the low-temperature water is heated, the first temperature sensor inside the solar water heater 1 detects that the hot water temperature reaches the use requirement, or the heat pump 3 When the second temperature sensor detects that the hot water inside the heat pump 3 reaches the usage standard, the first temperature sensor and the second temperature sensor send feedback signals to the main control terminal. After receiving the signals, the main control terminal sends hot water delivery signals to the solar water heater 1 and the heat pump 3, so that the solar water heater 1 and the heat pump 3 store the heated hot water in the hot water storage tank 19. When storing hot water, the solar water heater 1 and the heat pump 3 send the hot water into the main water outlet pipe 13 through the solar water heater outlet pipe 6 and the heat pump outlet pipe 8 respectively, and send the hot water into the building through the main water outlet pipe 13 for heating;

[0039] While the solar water heater 1 and the heat pump 3 are providing hot water, the solar photovoltaic panel 2 converts solar energy and stores the current in the storage battery 4 through the current input line 9. The storage battery 4 transmits the stored current to the interior of the building through the current output line 10, so as to supply power to the interior of the building. When the current converted by the solar photovoltaic panel 2 is stored in the storage battery 4, the first input branch 92 and the second input branch 93 are selected according to the seasonal temperature for transmission respectively. At the same time, when the storage battery 4 supplies power, the first output branch 102 and the second output branch 103 are also selected according to the temperature for supplying power respectively;

[0040] When the temperature is low in season, the current is stored in the battery 4 by inputting the first branch 92, the current of the solar photovoltaic panel 2 is transmitted to the battery 4 through the input first branch 92, and the current of the battery 4 is transmitted to the interior of the building through the output second branch 103. Since the input first branch 92 and the output second branch 103 are spirally wound on the outside of the water outlet main pipe 131, and the outside of the input first branch 92 and the output second branch 103 are respectively covered with the second insulation sleeve 16 and the fourth insulation sleeve 18, the hot water generated by the solar water heater 1 and the heat pump 3 is stored in the hot water storage tank 19 in real time. During the process, the hot water flows inside the water outlet pipe 131, and the first input branch 92 and the second output branch 103 wound around the outside of the water outlet pipe 131 are heated by the heat of the hot water lost to the outside in the water outlet pipe 131, so as to avoid the increase of the internal resistance of the first input branch 92 and the second output branch 103 due to the decrease of the external temperature, thereby reducing the loss of the current when the first input branch 92 and the second output branch 103 are transmitted, and at the same time, the outer skin of the first input branch 92 and the second output branch 103 is prevented from being embrittled due to the decrease of the external temperature, so as to avoid the damage of the first input branch 92 and the second output branch 103;

[0041] When the seasonal temperature is high, the second input branch 93 is used to store current in the battery 4, and the first output branch 102 is used to supply power to the interior of the building. The second input branch 93 and the first output branch 102 are respectively wrapped around the outside of the two ends of the water inlet main pipe 141, and the outsides of the second input branch 93 and the first output branch 102 are respectively covered with the first insulation sleeve 15 and the third insulation sleeve 17. At the same time, low-temperature water flows in the water inlet main pipe 141. The low-temperature water flowing in the water inlet main pipe 141 absorbs the internal heat of the second input branch 93 and the first output branch 102 wrapped around the outside of the water inlet main pipe 141, ensuring that the working temperature of the second input branch 93 and the first output branch 102 remains constant. At the same time, the first insulation sleeve 15 and the third insulation sleeve 17 are used to isolate external heat to prevent the outer skin of the second input branch 93 and the first output branch 102 from softening due to excessive external temperature.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An energy supply system based on multi-energy coupling of zero-carbon buildings, including a solar power generation system, a heating system, a temperature detection module, a main control terminal and a wireless signal transceiver, characterized in that: The heating system comprises a solar water heater (1) and a heat pump (3), and the temperature detection module, the solar power generation system, the heating system and the main control terminal transmit and receive information via a wireless signal transceiver; The solar power generation system comprises a solar photovoltaic panel (2) and a storage battery (4); two pairs of electrodes are provided on the upper surface of the storage battery (4); one pair of electrodes is used to store current, and the other pair of electrodes is used to output current; two current input lines (9) are connected between the solar photovoltaic panel (2) and the storage battery (4); two current output lines (10) are connected between the storage battery (4) and the interior of a building; one end of the current input line (9) is connected to the solar photovoltaic panel (2); the other end of the current input line (9) is connected to the current storing electrode of the storage battery (4); one end of the current output line (10) extends to the interior of the building; the other end of the current output line (10) is connected to the current output electrode of the storage battery (4); The temperature detection module comprises a first temperature sensor, a second temperature sensor and a third temperature sensor, wherein the first temperature sensor is installed inside a water storage tank of the solar water heater (1), the second temperature sensor is installed inside a water storage tank of the heat pump (3), and the third temperature sensor is installed outside the solar water heater (1) and the heat pump (3).

2. According to claim 1, the energy supply device of the energy supply system based on zero-carbon building multi-energy coupling is characterized in that: The water inlet end of the solar water heater (1) is connected to a solar water heater water inlet pipe (5), the water outlet end of the solar water heater (1) is connected to a solar water heater water outlet pipe (6), the water inlet end of the heat pump (3) is connected to a heat pump water inlet pipe (7), the water outlet end of the heat pump (3) is connected to a heat pump water outlet pipe (8), and the ends of the solar water heater water outlet pipe (6) and the heat pump water outlet pipe (8) close to each other are provided with a water outlet three-way water valve (11), the two input ends of the water outlet three-way water valve (11) are respectively connected to the solar water heater water outlet pipe (6) and the heat pump water outlet pipe (8), and the The output end of the water outlet three-way water valve (11) is connected to a main water outlet pipe (13); the ends of the solar water heater water inlet pipe (5) and the heat pump water inlet pipe (7) close to each other are connected to a water inlet three-way water valve (12); the two output ends of the water inlet three-way water valve (12) are respectively connected to the solar water heater water inlet pipe (5) and the heat pump water inlet pipe (7); the input end of the water inlet three-way water valve (12) is connected to a main water inlet pipe (14); the other end of the main water outlet pipe (13) extends to the interior of the building to supply water to the interior of the building; the other end of the main water inlet pipe (14) is connected to the municipal water network.

3. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 2 is characterized in that: The current input circuit (9) comprises a first electrode connection line (91), one end of which is connected to an electrode of a storage battery (4), and the other end of which is divided into an input first branch (92) and an input second branch (93), wherein the input first branch (92) and the input second branch (93) merge with each other near a solar photovoltaic panel (2) and are connected to the solar photovoltaic panel (2); the current output circuit (10) comprises a second electrode connection line (101), one end of which is connected to an electrode of a storage battery (4), and the other end of which is divided into an output first branch (102) and an output second branch (103), wherein the output first branch (102) and the output second branch (103) merge with each other when entering a building and extend to the interior of the building.

4. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 3 is characterized by: The main water outlet pipe (13) comprises a water outlet main pipe (131), one end of which is connected to the output end of the water outlet three-way valve (11), and the other end of which is connected to a hot water storage barrel (19). A hot water supply pipe (20) is fixed to the outside of the hot water storage barrel (19), one end of which extends into the interior of the hot water storage barrel (19), and the other end of which extends into the interior of the building.

5. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 4 is characterized in that: Water outlet shunt pipes (132) are provided outside both ends of the water outlet main pipe (131), and three-way solenoid valves are provided inside the connection between both ends of the water outlet shunt pipe (132) and the water outlet main pipe (131).

6. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 5 is characterized by: One end of the water outlet main pipe (131) is sheathed with a second thermal insulation sleeve (16), and the other end of the water outlet main pipe (131) is sheathed with a fourth thermal insulation sleeve (18) on the outside; the second thermal insulation sleeve (16) and the fourth thermal insulation sleeve (18) are respectively located between the two ends of the two water outlet branch pipes (132); the first input branch (92) and the second output branch (103) are respectively spirally wound around the outside of the two ends of the water outlet main pipe (131); the first input branch (92) is located between the second thermal insulation sleeve (16) and the water outlet main pipe (131), and the second output branch (103) is located between the fourth thermal insulation sleeve (18) and the water outlet main pipe (131).

7. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 6 is characterized by: The main water inlet pipe (14) comprises a water inlet main pipe (141), one end of which is connected to the input end of the water inlet three-way valve (12), and the other end of which is connected to the production water network.

8. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 7 is characterized by: Water inlet distribution pipes (142) are provided outside both ends of the water inlet main pipe (141), and three-way solenoid valves are provided inside the connection points between both ends of the water inlet distribution pipe (142) and the water inlet main pipe (141).

9. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 8 is characterized by: A first heat-insulating sleeve (15) is sleeved on the outside of one end of the water inlet main pipe (141), and a third heat-insulating sleeve (17) is sleeved on the outside of the other end of the water inlet main pipe (141). The first heat-insulating sleeve (15) and the third heat-insulating sleeve (17) are located between the ends of the two water inlet diverter pipes (142).

10. The energy supply device of the energy supply system based on multi-energy coupling of zero-carbon buildings according to claim 9 is characterized in that: The second input branch (93) and the first output branch (102) are respectively spirally wound around the outer sides of both ends of the water inlet main pipe (141); the second input branch (93) is located between the first thermal insulation sleeve (15) and the water inlet main pipe (141); and the first output branch (102) is located between the third thermal insulation sleeve (17) and the water inlet main pipe (141).

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