Radiation floor air conditioning system with energy storage water tank

Abstract

The utility model discloses a radiation floor air conditioning system with an energy storage water tank, which belongs to the technical field of air conditioners and comprises a radiation floor pipe network and a fresh air fan which are both connected with the energy storage water tank. The energy storage water tanks comprise high / low-grade energy storage water tanks with the same volume; the radiation floor pipe network is connected with the low-grade energy storage water tank through a radiation floor pipeline; the fresh air fan is connected with the high-grade energy storage water tank through a fresh air fan water supply / return pipeline; the high-grade energy storage water tank is connected with the low-grade energy storage water tank through a water tank bypass pipeline; the radiation floor pipeline comprises a radiation floor water supply / return valve, a radiation floor water supply pump and a mixed water temperature control center; the system further comprises a system operation control logic module, and the fresh air ventilator, the radiation floor water supply / return valve, the radiation floor water supply pump and the mixed water temperature control center are all connected with the system operation control logic module. Return water of a fresh air machine is introduced into a radiation floor pipe network, secondary utilization of cold water / hot water in the fresh air treatment process is achieved, and gradient energy is effectively utilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and particularly relates to a radiant floor air conditioning system with an energy storage water tank. Background Art

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] In the context of increasingly prominent issues of climate change and energy consumption, building energy conservation and improvement of indoor environmental comfort have become important research directions in the HVAC industry. As a new type of indoor air conditioning technology, the radiant cooling system has gradually attracted attention. The radiant floor air conditioning system consists of a radiant floor pipe network, a control system, etc. Among them, the core part of the radiant floor air conditioning system is the radiant floor pipe network. When the system operates, water flows in the radiant floor, and transfers cold or heat to the indoor through radiation and convection with air to ensure the indoor thermal and humidity environment. The radiant floor air conditioning system is also equipped with a fresh air unit, which can realize functions such as dehumidification, filtration, and cooling.

[0004] In the existing radiant air conditioning system, the fresh air system and the radiant floor system usually operate independently. The high-temperature chilled water discharged by the fresh air system cannot communicate with the high-temperature chilled water required by the radiant floor. In summer, the supply water temperature of the fresh air unit is generally set at 7°C, and the return water temperature is 12°C, while the radiant floor air conditioning system uses 18°C high-temperature chilled water as the high-temperature cold source to prevent condensation on the floor surface.

[0005] This separated operation mode leads to a certain amount of energy waste. If the 12°C return water of the fresh air unit is directly input into the heat pump unit, high-quality chilled water cannot be utilized, and the start and stop of the heat pump unit are relatively frequent, resulting in increased energy consumption of the heat pump unit and shortening of its service life; in winter heating, the supply and return water temperatures of the fresh air unit and the radiant floor system are also different. Directly inputting the return water of the fresh air unit into the heat pump unit will also cause the return water of the fresh air unit to be unable to be utilized, and the start and stop of the heat pump unit are relatively frequent, resulting in increased energy consumption of the heat pump unit and shortening of its service life. Content of the Utility Model

[0006] Aiming at the above problems, the utility model provides a radiant floor air conditioning system with an energy storage water tank. By setting two energy storage water tanks that can communicate with each other, and connecting the radiant floor pipe network and the fresh air unit to the two energy storage water tanks, the cascade energy of the chilled water and hot water produced by the heat pump unit can be effectively utilized, while reducing the start frequency of the heat pump unit and increasing its service life.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A radiant floor air conditioning system with an energy storage water tank, comprising an independently operating radiant floor pipe network and a fresh air unit, both the radiant floor pipe network and the fresh air unit being connected to the energy storage water tank;

[0009] The energy storage water tank includes a high-grade energy storage water tank and a low-grade energy storage water tank with the same volume;

[0010] Among them, the radiant floor pipe network is connected to the low-grade energy storage water tank through a radiant floor pipeline; the fresh air unit is connected to the high-grade energy storage water tank through a fresh air supply pipeline and to the low-grade energy storage water tank through a fresh air return pipeline;

[0011] The high-grade energy storage water tank is connected to the low-grade energy storage water tank through a water tank bypass pipeline;

[0012] A low-grade water tank side radiant floor water supply valve, a radiant floor water supply pump, a radiant floor water supply valve, a radiant floor water return valve, and a mixing water temperature control center are provided on the radiant floor pipeline;

[0013] It further includes a system operation control logic module, and the fresh air unit, as well as the low-grade water tank side radiant floor water supply valve, the radiant floor water supply / return valve, the radiant floor water supply pump, and the mixing water temperature control center are all connected to the system operation control logic module.

[0014] Preferably, a heat pump unit water supply valve and a heat pump unit water return valve are provided on the high-grade energy storage water tank for connecting to the heat pump unit inlet and outlet pipelines, and the heat pump unit water supply / return valves are all connected to the system operation control logic module.

[0015] Preferably, the water tank bypass pipeline includes a high-grade side water tank bypass valve provided near the high-grade energy storage water tank and a low-grade side water tank bypass valve provided near the low-grade energy storage water tank; a water tank connection pump is provided between the two bypass valves, and the two bypass valves and the water tank connection pump are all connected to the system operation control logic module.

[0016] Preferably, the outer shells of the energy storage water tanks are all provided with heat insulation layers; exhaust valves and drain valves are installed on the energy storage water tanks, and water temperature and water pressure probes are arranged inside, and the exhaust valves, drain valves, and water temperature and water pressure probes are all connected to the system operation control logic module.

[0017] Preferably, energy storage balls are arranged inside the energy storage water tanks; the difference is that in the summer cooling condition, the energy storage temperature of the energy storage material selected for the energy storage balls in the high-grade energy storage water tank is lower than that of the energy storage balls in the low-grade energy storage water tank; while in the winter heating condition, the energy storage temperature of the energy storage material selected for the energy storage balls in the high-grade energy storage water tank is higher than that of the energy storage balls in the low-grade energy storage water tank.

[0018] Preferably, the number of the energy storage balls arranged is 1 / 3 to 2 / 3 of the effective volume of the energy storage water tank.

[0019] Preferably, the fresh air unit is connected to the fresh air supply pipeline through the fresh air supply valve and to the fresh air return pipeline through the fresh air return valve; a fresh air supply pump and a fresh air supply valve on the water tank side are installed on the fresh air supply pipeline, and the fresh air supply / return valve, the fresh air supply pump, and the fresh air supply valve on the water tank side are all connected to the system operation control logic module.

[0020] Preferably, floor surface temperature and humidity sensors and indoor temperature and humidity sensors are also provided in the system, and both sensors are connected to the system operation control logic module.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] The present utility model adopts two interconnected energy storage water tanks connected to the fresh air unit and the radiant floor pipe network. By introducing the return water of the fresh air unit into the radiant floor pipe network, the secondary utilization of the cold / hot water generated during the fresh air treatment process is realized, and the cascade energy of the cold / hot water during the fresh air treatment process is effectively utilized; the start-stop frequency of the heat pump unit can be effectively reduced, equipment wear can be reduced, and the service life of the heat pump unit is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0024] Figure 1 is a schematic structural diagram of a radiant floor air-conditioning system with an energy storage water tank in the embodiment of the present utility model;

[0025] In the figure: 1. High-grade energy storage water tank exhaust valve; 2. Heat pump unit water supply valve; 3. Heat pump unit return water valve; 4. Energy storage ball; 5. High-grade energy storage water tank water temperature and pressure probe; 6. High-grade energy storage water tank; 7. High-grade side water tank bypass valve; 8. Water tank connection pump; 9. Low-grade side water tank bypass valve; 10. Water tank bypass pipeline; 11. Low-grade energy storage water tank; 12. Low-grade energy storage water tank water temperature and pressure probe; 13. High-grade energy storage water tank drain valve; 14. Low-grade energy storage water tank drain valve; 15. Low-grade energy storage water tank exhaust valve; 16. Low-grade water tank side radiant floor water supply valve; 17. Radiant floor water supply pump; 18. Radiant floor water supply valve; 19. Radiant floor return water valve; 20. Mixing water temperature control center; 21. Radiant floor pipe network; 22. Floor surface temperature and humidity sensor; 23. Indoor temperature and humidity sensor; 24. System operation control logic module; 25. Fresh air unit; 26. Fresh air unit return water valve; 27. Fresh air unit water supply valve; 28. Fresh air unit water supply pump; 29. Fresh air supply valve on the water tank side; 30. Fresh air unit return water pipeline; 31. Fresh air unit water supply pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0027] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiment disclosed herein is a radiant floor air conditioning system with an energy storage water tank. Figure 1 As shown, it includes independently operated radiant floor pipe network 21 and fresh air fan 25; wherein, the radiant floor pipe network 21 is connected to the low-grade energy storage water tank 11 through the radiant floor pipe; the fresh air fan 25 is connected to the high-grade energy storage water tank 6 through the fresh air fan water supply pipe 31, and is connected to the low-grade energy storage water tank 11 through the fresh air fan return pipe 30.

[0028] The high-quality energy storage water tank 6 is provided with a heat pump unit water supply valve 2 and a heat pump unit return valve 3, which are connected to the heat pump unit water inlet and outlet pipelines through the heat pump unit water supply valve 2 and the heat pump unit return valve 3, thereby realizing the connection between the high-quality energy storage water tank and the heat pump unit.

[0029] like Figure 1 As shown, the high-grade energy storage water tank 6 is connected to the low-grade energy storage water tank 11 through a water tank bypass pipeline 10. The water tank bypass pipeline 10 includes a high-grade side water tank bypass valve 7 arranged near the high-grade energy storage water tank 6, and a low-grade side water tank bypass valve 9 arranged near the low-grade energy storage water tank 11; a water tank connecting pump 8 is arranged between the high-grade side water tank bypass valve 7 and the low-grade side water tank bypass valve 9, so that the water in the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 can realize two-way flow as needed, so that the water storage capacity of the two is balanced, and energy exchange between the two energy storage water tanks can be realized. At the same time, the high-grade side water tank bypass valve 7 and the low-grade side water tank bypass valve 9 are installed, which can be convenient for maintenance.

[0030] It is understandable that both the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 are heat-insulating water tanks, and the shells of the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 are provided with heat-insulating layers. The high-grade energy storage water tank 6 is equipped with a high-grade energy storage water tank exhaust valve 1, and the low-grade energy storage water tank 11 is equipped with a low-grade energy storage water tank exhaust valve 15, which can ensure the balance of pressure when water is inlet; the high-grade energy storage water tank 6 is equipped with a high-grade energy storage water tank drain valve 13, and the low-grade energy storage water tank 11 is equipped with a low-grade energy storage water tank drain valve 14, which can drain all the water in the system for replacement.

[0031] like Figure 1As shown in the figure, energy storage balls 4 are provided in both the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11. The energy storage balls 4 are made of energy storage materials in the prior art. The difference is that in the summer cooling condition, the energy storage balls 4 in the high-grade energy storage water tank 6 are made of energy storage materials at 3-5°C, and the energy storage balls 4 in the low-grade energy storage water tank 11 are made of energy storage materials at 12-18°C; while in the winter heating condition, the energy storage balls 4 in the high-grade energy storage water tank 6 are made of energy storage materials at 60-70°C, and the energy storage balls 4 in the low-grade energy storage water tank 11 are made of energy storage materials at 30-50°C. The high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 have the same volume, and the number of energy storage balls set is 1 / 3-2 / 3 of the effective volume of the high-grade energy storage water tank and the low-grade energy storage water tank, which makes the total effective energy storage or output energy of the energy storage water tank 3-4 times that of the direct refrigeration or heating power.

[0032] As Figure 1 shown, a high-grade energy storage water tank water temperature and pressure probe 5 is provided in the high-grade energy storage water tank 6 for monitoring the water temperature in the high-grade energy storage water tank; a low-grade energy storage water tank water temperature and pressure probe 12 is provided in the low-grade energy storage water tank 11 for monitoring the water temperature in the low-grade energy storage water tank.

[0033] As Figure 1 shown, a fresh air supply water pump 28 and a water tank side fresh air supply valve 29 are installed on the fresh air supply water pipeline 31 to control the cold water to flow from the high-grade energy storage water tank 6 to the fresh air unit 25; the fresh air unit 25 is connected to the fresh air supply water pipeline 31 through the fresh air supply valve 27 and connected to the fresh air return water pipeline 30 through the fresh air return water valve 26 for easy maintenance; the fresh air return water pipeline 30 is used to discharge the 12°C return water into the low-grade energy storage water tank.

[0034] As Figure 1 shown, the radiant floor pipe network 21 is connected to the low-grade energy storage water tank 11 through the radiant floor pipeline. The radiant floor pipeline includes a low-grade water tank side radiant floor water supply valve 16, a radiant floor water supply pump 17, a radiant floor water supply valve 18, a radiant floor water return valve 19, and a mixing water temperature control center 20. The radiant floor water supply pump 17 provides circulating power for the radiant floor pipeline; the mixing water temperature control center 20 can mix the return water of the radiant floor pipe network 21 with the high-temperature cold water in the low-grade energy storage water tank 11, and the mixed water temperature is about 18°C and is transported out, maintaining the water supply temperature of the radiant floor pipe network at about 18°C, so as to realize the control of the radiant floor water supply temperature and prevent condensation on the surface of the radiant floor. It can be understood that the mixing water temperature control center adopts the prior art, such as the L8101 floor heating mixing water temperature control center of Lewatit. The central intelligent temperature controller inside can control the mixing ratio according to the set required temperature to ensure the output water temperature.

[0035] Since the supply and return water temperatures of the fresh air unit are usually set at 7°C and 12°C, the radiant floor uses relatively high-temperature chilled water, generally 18°C. According to the reverse Carnot cycle, the energy required for the heat pump unit to produce chilled water at 7°C is significantly higher than that for producing high-temperature chilled water at 18°C, and a single unit cannot produce chilled water at 7°C and 18°C simultaneously. The return water pipe of the fresh air unit introduces the 12°C return water into the low-grade energy storage water tank, which can reduce the amount of chilled water produced at 18°C in the system, release the cooling capacity of the return water of the fresh air unit for the second time, and achieve the cascaded utilization of energy, thus making the air-conditioning system more energy-efficient and reducing the start-up times of the heat pump unit. The high-grade energy storage water tank is connected to the heat pump unit through the water inlet and outlet pipes of the heat pump unit and is the source of the system's cooling capacity.

[0036] As Figure 1 shown, floor surface temperature and humidity sensors 22 and indoor temperature and humidity sensors 23 are also provided in the system to monitor the floor surface temperature and humidity and the indoor temperature and humidity; the system also includes a system operation control logic module 24, which is electrically connected to the high-grade energy storage water tank water temperature and pressure probe 5, the high-grade side water tank bypass valve 7, the water tank connection pump 8, the low-grade side water tank bypass valve 9, the low-grade energy storage water tank water temperature and pressure probe 12, the low-grade water tank side radiant floor water supply valve 16, the radiant floor water supply pump 17, the radiant floor water supply valve 18, the radiant floor return water valve 19, the mixed water temperature control center 20, the floor surface temperature and humidity sensors 22, the indoor temperature and humidity sensors 23, the fresh air unit 25, the fresh air unit water supply pump 28, and the water tank side fresh air unit water supply valve 29 to achieve interlocking control, and can control the start and stop switching of relevant water pumps, valves, equipment, etc. according to the outdoor seasonal temperature, the indoor thermal and humidity environment, and the water temperature and water level conditions of the two energy storage water tanks.

[0037] In the summer cooling mode, the operation stage mainly includes the following two types:

[0038] Startup stage: The heat pump unit water supply valve 2 and the heat pump unit return water valve 3 are opened, and the chilled water produced by the heat pump unit flows from the heat pump unit return water valve 3 into the high-grade energy storage water tank 6.

[0039] The fresh air unit return water valve 26 is opened, the fresh air unit water supply valve 27 is opened, the water tank side fresh air unit water supply valve 29 is opened, the fresh air unit water supply pump 28 is opened, the fresh air unit 25 is opened, the low-temperature chilled water in the high-grade energy storage water tank 6 is pumped into the fresh air unit 25 through the fresh air unit water supply pipeline 31 by the fresh air unit water supply pump 28, the high-temperature chilled water flows into the low-grade energy storage water tank 11 through the fresh air unit return water pipeline 30, the radiant floor water supply valve 18 and the radiant floor return water valve 19 are closed, the mixed water temperature control center 20 is closed, and the fresh air unit is the only cooling form. After the system operates for 15 to 20 minutes, the air-conditioning system enters the next stage.

[0040] Operation stage: The water supply valve 2 and the water return valve 3 of the heat pump unit are opened, the fresh air unit 25 is opened, the fresh air unit water supply valve is opened, and the fresh air unit water supply pump 28 is opened; the low-grade water tank side radiant floor water supply valve 16, the radiant floor water supply pump 17, the radiant floor water supply valve 18, and the radiant floor water return valve 19 are opened. The mixing water temperature control center 20 mixes the return water of the radiant floor pipe network 21 with the water in the low-grade energy storage water tank 11 according to the temperature of 18°C set by the system operation control logic module 24, so that the temperature of the mixed water is 18°C, and pumps them into the radiant floor pipe network 21 and flows back to the low-grade energy storage water tank 11 respectively.

[0041] After running for a period of time, when the high-grade energy storage water tank 6 stores enough cold water, the heat pump unit is shut down, and the water supply valve 2 and the water return valve 3 of the heat pump unit are closed.

[0042] When the temperature of the high-grade energy storage water tank 6 rises above the threshold value, the heat pump unit is turned on, the water supply valve 2 and the water return valve 3 of the heat pump unit are opened, and cold water is continuously produced.

[0043] When the water level difference between the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 is too large or the water temperature of the low-grade energy storage water tank is too high, the high-grade side water tank bypass valve 7 and the low-grade side water tank bypass valve 9 are opened, and the water tank connection pump 8 runs to balance the water levels of the water tanks and maintain the water temperature of the low-grade energy storage water tank.

[0044] Winter heating condition, system operation process:

[0045] The water supply valve 2 and the water return valve 3 of the heat pump unit are opened, and the hot water produced by the heat pump unit flows into the high-grade energy storage water tank 6 from the water return valve 3 of the heat pump unit.

[0046] The fresh air unit water return valve 26 is opened, the fresh air unit water supply valve 27 is opened, the water supply valve 29 of the fresh air unit on the water tank side is opened, the fresh air unit water supply pump 28 is opened, the fresh air unit 25 is opened, and the high-temperature hot water in the high-grade energy storage water tank 6 passes through the fresh air unit water supply pipeline 31 and is pumped into the fresh air unit 25 by the fresh air unit water supply pump 28, and the low-temperature hot water flows into the low-grade energy storage water tank 11 through the fresh air unit water return pipeline 30;

[0047] The low-grade water tank side radiant floor water supply valve 16, the radiant floor water supply pump 17, the radiant floor water supply valve 18, and the radiant floor water return valve 19 are opened. The mixing water temperature control center 20 mixes the return water of the radiant floor pipe network 21 with the water in the low-grade energy storage water tank 11 according to the temperature set by the system operation control logic module 24. The temperature of the mixed water meets the winter radiant floor pipe network water supply temperature, and is pumped into the radiant floor pipe network 21 and flows into the low-grade energy storage water tank 11 respectively.

[0048] After running for a period of time, when the high-grade energy storage water tank 6 stores enough high-temperature hot water, the heat pump unit is shut down, and the water supply valve 2 and the water return valve 3 of the heat pump unit are closed.

[0049] When the temperature of the high-grade energy storage water tank 6 drops by more than the threshold value, the heat pump unit is turned on, and the water supply valve 2 and the water return valve 3 of the heat pump unit are opened to continue producing hot water.

[0050] When the water level difference between the high-grade energy storage water tank 6 and the low-grade energy storage water tank 11 is too large or the water temperature of the low-grade energy storage water tank is too low, the bypass valve 7 of the high-grade side water tank and the bypass valve 9 of the low-grade side water tank are opened, and the water tank connection pump 8 operates to balance the water levels of the water tanks and maintain the water temperature of the low-grade energy storage water tank.

[0051] Although the specific implementation manners of the present utility model have been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present utility model. Those skilled in the art should understand that based on the technical solution of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. A radiant floor air-conditioning system with an energy storage water tank, characterized in that, It includes an independently operating radiant floor pipe network and a fresh air unit, and both the radiant floor pipe network and the fresh air unit are connected to a thermal energy storage water tank; The thermal energy storage water tank includes a high-grade thermal energy storage water tank and a low-grade thermal energy storage water tank with the same volume; Among them, the radiant floor pipe network is connected to the low-grade thermal energy storage water tank through a radiant floor pipeline; the fresh air unit is connected to the high-grade thermal energy storage water tank through a fresh air unit water supply pipeline and is connected to the low-grade thermal energy storage water tank through a fresh air unit return water pipeline; The high-grade thermal energy storage water tank is connected to the low-grade thermal energy storage water tank through a water tank bypass pipeline; On the radiant floor pipeline, there are a low-grade water tank side radiant floor water supply valve, a radiant floor water supply pump, a radiant floor water supply valve, a radiant floor return water valve, and a mixing water temperature control center; It also includes a system operation control logic module, and the fresh air unit, as well as the low-grade water tank side radiant floor water supply valve, the radiant floor water supply / return valve, the radiant floor water supply pump, and the mixing water temperature control center, are all connected to the system operation control logic module.

2. The radiant floor air conditioning system with an energy storage water tank according to claim 1, wherein On the high-grade thermal energy storage water tank, there are a heat pump unit water supply valve and a heat pump unit return water valve for connecting to the inlet and outlet pipelines of the heat pump unit, and both the heat pump unit water supply / return valves are connected to the system operation control logic module.

3. The radiant floor air conditioning system with an energy storage water tank according to claim 1, wherein The water tank bypass pipeline includes a high-grade side water tank bypass valve arranged close to the high-grade thermal energy storage water tank and a low-grade side water tank bypass valve arranged close to the low-grade thermal energy storage water tank; a water tank connection pump is arranged between the two bypass valves, and both the two bypass valves and the water tank connection pump are connected to the system operation control logic module.

4. The radiant floor air-conditioning system with an energy storage water tank according to claim 1, wherein The outer shells of the thermal energy storage water tanks are all provided with adiabatic insulation layers; exhaust valves and drain valves are installed on the thermal energy storage water tanks, and water temperature and water pressure probes are arranged inside, and the exhaust valves, drain valves, and water temperature and water pressure probes are all connected to the system operation control logic module.

5. The radiant floor air-conditioning system with an energy storage water tank according to claim 1, wherein, Energy storage balls are arranged inside the thermal energy storage water tanks; the difference is that in the summer cooling condition, the energy storage temperature of the energy storage material selected by the energy storage balls in the high-grade thermal energy storage water tank is lower than that of the energy storage balls in the low-grade thermal energy storage water tank; while in the winter heating condition, the energy storage temperature of the energy storage material selected by the energy storage balls in the high-grade thermal energy storage water tank is higher than that of the energy storage balls in the low-grade thermal energy storage water tank.

6. The radiant floor air-conditioning system with an energy storage water tank as claimed in claim 5, wherein, The number of the energy storage balls arranged is 1 / 3 - 2 / 3 of the effective volume of the thermal energy storage water tank.

7. The radiant floor air-conditioning system with an energy storage water tank according to claim 1, characterized in that, The fresh air unit is connected to the fresh air unit water supply pipeline through a fresh air unit water supply valve and is connected to the fresh air unit return water pipeline through a fresh air unit return water valve; on the fresh air unit water supply pipeline, there are a fresh air unit water supply pump and a water tank side fresh air unit water supply valve, and the fresh air unit water supply / return valve, the fresh air unit water supply pump, and the water tank side fresh air unit water supply valve are all connected to the system operation control logic module.

8. The radiant floor air conditioning system with an energy storage water tank as described in claim 1, characterized in that, Floor surface temperature and humidity sensors and indoor temperature and humidity sensors are also arranged in the system, and both sensors are connected to the system operation control logic module.

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