An energy-saving regulation and energy storage control system for heating, cooling and cooling.

Abstract

This application provides an energy-saving regulation and control system for cooling and heating, and energy-saving energy storage, including a return energy buffer box for connecting the return energy pipeline of the cooling and heating equipment; an energy storage tank for storing the energy medium and connected to the return energy buffer box and the air source heat pump through a transmission network; auxiliary heaters are installed inside the energy storage tank and the return energy buffer box for heating the internal energy medium; and a controller for controlling the opening and closing of the air source heat pump, the electric control valve, the circulation pump, and the cooling and heating equipment. The beneficial effects of this application's embodiments include a simple overall system structure, ease of fabrication, and applicability in parking lots, providing independent cooling or heating for different areas within the parking lot, and effectively controlling the temperature of each area to maximize energy savings while meeting cooling and heating requirements.

Description

Technical Field

[0001] This application relates to the field of heating and cooling technology, and in particular to an energy-saving regulating heating and cooling and energy-saving energy storage control system. Background Technology

[0002] Traditional underground parking garages suffer from significant energy consumption issues related to heating and cooling. Due to the relatively enclosed nature of underground spaces and insufficient natural light, lighting equipment typically needs to be on 24 / 7, resulting in high overall energy consumption. Simultaneously, maintaining air circulation and comfort within the parking garage, as well as meeting heating and cooling needs during cold or hot seasons, consumes substantial amounts of energy for both heating and cooling systems. This energy consumption not only increases operating costs but also burdens the environment. Therefore, there is an urgent need for a simple, low-energy-consumption temperature control system that can effectively regulate parking garage temperatures to improve the parking environment. Summary of the Invention

[0003] This application provides an energy-saving regulating cooling and heating and energy-saving energy storage control system that can be applied to parking lots to provide cooling and heating to the parking lot environment in an energy-saving manner.

[0004] To address the aforementioned technical problems, embodiments of this application provide an energy-saving regulation and control system for heating, cooling, and energy storage, comprising: A regenerative buffer box is used to connect the regenerative pipeline of the heating and cooling equipment. The regenerative buffer box is equipped with a first auxiliary heater, an exhaust valve connected to the exhaust pipeline at the top, and a drain valve connected to the sewage pipeline at the bottom. The first auxiliary heater is controlled by a controller through a first temperature control switch and a relay, and is connected to the ground through a surge protector. The energy storage tank is connected to the energy recovery buffer box and the air source heat pump through a transmission network. The energy storage tank is equipped with a second auxiliary heater. The second auxiliary heater is controlled by a controller through a second temperature control switch and a relay, and is connected to the ground through a surge protector. An air source heat pump is connected via pipeline to an energy recovery buffer tank, an energy storage tank, and heating / cooling equipment. The inlet and outlet of the air source heat pump are connected to both ends of the energy storage tank via an electrically controlled valve and a first circulation pump. When storing energy in the energy storage tank (i.e., heating or cooling the energy medium inside), the air source heat pump inlet is connected to the lower outlet of the energy storage tank via the electrically controlled valve and the first circulation pump, while the air source heat pump outlet is connected to the upper inlet of the energy storage tank via an electrically controlled valve. When the energy storage tank supplies heating / cooling to the equipment, the upper interface of the energy storage tank becomes the outlet, connected to the air source heat pump via the electrically controlled valve. The outlet is connected to the inlet of the heating and cooling equipment. The lower interface of the energy storage tank becomes the inlet. It is connected to the outlet of the heating and cooling equipment via an electric control valve, the air source heat pump inlet, the second circulation pump, and the energy return buffer tank. Depending on the working state, the inlet and outlet of the energy storage tank will be switched. The inlet of the energy return buffer tank is connected to the energy return pipeline of the heating and cooling equipment, and the outlet is connected to the inlet of the air source heat pump. The controller controls the switching of the electric control valve and the start and stop of heating of the heating and cooling equipment, energy storage tank, and energy return buffer tank, as well as the start and stop of air source heat pump, first circulation pump, and second circulation pump. The controller is connected to the energy recovery buffer box, energy storage tank, air source heat pump, transmission network and heating and cooling equipment respectively.

[0005] In one embodiment, the energy recovery buffer tank is equipped with a first temperature detector and a first liquid level detector, and the first temperature detector and the first liquid level detector respectively transmit the detection signals to the controller; And / or, the energy storage tank is equipped with a second temperature detector and a second liquid level detector, which transmit detection signals to the controller respectively.

[0006] In one embodiment, the delivery network includes a power supply pipeline, a return pipeline, an electrically controlled valve, a first circulation pump, and a second circulation pump. The first circulation pump is used to heat or cool the energy medium output from the energy storage tank using an air-source heat pump. The second circulation pump is used to heat or cool the energy medium in the heating and cooling equipment using an air-source heat pump and / or the energy storage tank. The electrically controlled valve is used to control the connection or closure of the pipeline. Both the electrically controlled valve and the circulation pump are communicatively connected to a controller.

[0007] In one embodiment, the delivery network includes a first circulation branch, a second circulation branch, and a third circulation branch arranged in parallel and / or in series. The first circulation branch connects the air source heat pump unit and the energy storage tank through an electrically controlled valve and a first circulation pump when the air source heat pump stores energy in the energy storage tank. The second circulation branch connects the energy storage tank and the energy storage equipment through an electrically controlled valve, a second circulation pump, and a return energy buffer tank when the energy storage tank supplies cooling and heating. The third circulation branch connects the air source heat pump unit and the cooling and heating equipment through an electrically controlled valve, a second circulation pump, and a return energy buffer tank when the air source heat pump supplies cooling and heating. The first circulation branch has multiple branch pipes, each branch pipe being connected to a single energy storage tank via an independent electrically controlled valve; the second circulation branch has multiple branch pipes, each branch pipe being connected to a single energy storage tank via an independent electrically controlled valve, and also has a regional distribution network, which connects to the fan coil units and underfloor heating coils of each zone of the parking lot via regional electrically controlled valve groups; the third circulation branch has a regional distribution network, which connects to the fan coil units and underfloor heating coils of each zone of the parking lot via regional electrically controlled valve groups.

[0008] In one embodiment, it further includes: The photovoltaic power supply module is connected to the air source heat pump unit and auxiliary heater through a dual power switch; The outer wall of the energy recovery buffer box and the energy storage tank is equipped with a temperature control switch, which is connected in series in the power supply circuit of the auxiliary heater; The controller is configured to prioritize photovoltaic power supply and switch to mains power when the photovoltaic power supply module is insufficient.

[0009] In one embodiment, an automatic exhaust valve is provided at the top of the exhaust pipe of the energy recovery buffer box, which is connected to the air source heat pump and the transmission network circuit. It is used to allow the gas mixed in during energy recovery to float up and be discharged naturally, thereby reducing water pump air resistance and main unit protection alarm. The exhaust valve is connected to the controller and can automatically discharge gas. And / or, the bottom of the energy recovery buffer tank is equipped with a drain valve, which is connected to an external sewage system through a drain pipe. The drain valve is opened periodically by the controller according to the system operation cycle to remove impurities deposited in the circulating water and prevent pipe blockage.

[0010] In one embodiment, a temperature control switch is connected in series with the first auxiliary heater. The temperature control switch is directly connected in series in the power supply circuit of the first auxiliary heater. When the internal temperature of the energy recovery buffer box or energy storage tank exceeds the preset temperature threshold, the power supply is automatically disconnected to protect the first auxiliary heater. The detection signal of the temperature control switch is synchronously transmitted to the controller.

[0011] In one embodiment, the system includes at least two air source heat pumps, which are independently connected to the transmission network. They can independently store energy for the energy storage tank or supply energy for heating and cooling equipment. They can also be switched on and off in conjunction with a controller to improve overall energy efficiency and system stability.

[0012] In one embodiment, the controller is equipped with a heating / cooling rate monitoring module to compare the temperature change curves of each area in real time. When the heating / cooling rate is lower than a set threshold, the controller dynamically adjusts the output power of the air source heat pump, increases the output of the auxiliary heater, or switches to a strategy of releasing cold / heat energy using an energy storage tank.

[0013] In one embodiment, the system supports remote cloud control. The controller can connect to a cloud server and perform system energy consumption analysis, temperature control strategy optimization, adaptive adjustment, and remote firmware upgrades through data upload.

[0014] Based on the disclosure of the above embodiments, it can be understood that the beneficial effects of the embodiments of this application include a simple overall system structure, ease of fabrication, and applicability in parking lots. It provides independent cooling or heating to different areas within the parking lot and effectively controls the temperature of each area, minimizing energy consumption while meeting cooling and heating requirements. It integrates dual power supplies for guaranteed power supply, includes remote control and multi-component collaboration, achieving efficient, energy-saving, stable, and intelligent temperature control, reducing energy consumption, extending equipment lifespan, and improving the comfort of the parking lot environment.

[0015] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0016] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural block diagram of the energy-saving regulation and energy-saving energy storage control system in the embodiments of this application.

[0019] Figure 2This is a partial structural diagram of the energy-saving regulation and energy-saving energy storage control system in an application embodiment of this application.

[0020] Figure 3 This is a flowchart of the energy-saving regulation and energy-saving energy storage control system method in the embodiments of this application.

[0021] Figure 4 This is a schematic diagram of the energy medium flow in the energy-saving regulation and energy-saving energy storage control system in the application embodiment of this application. Detailed Implementation

[0022] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of this application.

[0023] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the following description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope of this disclosure will be apparent to those skilled in the art.

[0024] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0025] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0026] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0027] The above and other aspects, features and advantages of this disclosure will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0028] Specific embodiments of the present disclosure are described thereafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure and can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present disclosure. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of substantially any suitable detailed structures.

[0029] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0031] like Figure 1 As shown in the illustration, this application discloses an energy-saving regulating cooling and heating and energy-saving energy storage control system, comprising: a recovery buffer box for connecting to the recovery pipeline of the cooling and heating equipment; the recovery buffer box is equipped with a first auxiliary heater inside; an exhaust valve is provided on the top of the box via an exhaust pipeline; and a drain valve is provided on the bottom of the box via a drain pipeline. The first auxiliary heater is controlled by a controller via a first temperature control switch and a relay, and is connected to the ground via a surge protector. An energy storage tank is connected to the recovery buffer box and an air source heat pump via a transmission network. The energy storage tank is equipped with a second auxiliary heater inside; the second auxiliary heater is controlled by a controller via a second temperature control switch and a relay, and is connected to the ground via a surge protector. An air source heat pump is connected via pipeline to an energy recovery buffer tank, an energy storage tank, and heating / cooling equipment. The inlet and outlet of the air source heat pump are connected to both ends of the energy storage tank via an electrically controlled valve and a first circulation pump. When storing energy in the energy storage tank (i.e., heating or cooling the energy medium inside), the air source heat pump inlet is connected to the lower outlet of the energy storage tank via the electrically controlled valve and the first circulation pump, while the air source heat pump outlet is connected to the upper inlet of the energy storage tank via an electrically controlled valve. When the energy storage tank supplies heating / cooling to the equipment, the upper interface of the energy storage tank becomes the outlet, connected to the air source heat pump via the electrically controlled valve. The outlet is connected to the inlet of the heating and cooling equipment. The lower interface of the energy storage tank becomes the inlet, which, through an electrically controlled valve and the inlet of the air source heat pump, is connected to the outlet of the heating and cooling equipment via the second circulation pump and the energy recovery buffer tank. Depending on the operating state, the inlet and outlet of the energy storage tank will be switched. The inlet of the energy recovery buffer tank is connected to the return water pipe of the heating and cooling equipment, and its outlet is connected to the inlet of the air source heat pump. The controller controls the switching of the electrically controlled valve and the start / stop of heating in the heating and cooling equipment, energy storage tank, and energy recovery buffer tank, as well as the start / stop of the air source heat pump, the first circulation pump, and the second circulation pump. The controller is connected to the energy recovery buffer tank, energy storage tank, air source heat pump, transmission network, and heating and cooling equipment. This system achieves separation of energy storage and energy supply processes through a dual-circulation branch design, avoiding cross-interference between hot and cold energy; the independently controlled transmission network improves the local temperature regulation response speed; and the buffer tank's buffering function reduces frequent start / stop of the heat pump, extending equipment life. The number of energy recovery buffer boxes, energy storage tanks, and air source heat pumps is unlimited; there can be multiple units or just one unit.

[0032] In one specific embodiment, during winter, when the temperature at the parking lot entrance area is detected to drop to 3°C, the controller starts the air source heat pump to heat the 12°C return water in the energy return buffer tank to 45°C and deliver it to the underfloor heating system. The first temperature control switch monitors the temperature of the energy return buffer tank in real time. When the temperature rises to 45°C, the controller immediately stops heating. When the temperature rises abnormally to 60°C, the temperature controller immediately cuts off the power for protection. At the same time, the second auxiliary heater in the energy storage tank maintains the water temperature at 60°C for standby. The second temperature control switch monitors the temperature of the energy storage tank in real time. When the temperature rises to 60°C, the controller immediately stops heating. When the temperature rises abnormally to 80°C, the temperature controller immediately cuts off the power for protection.

[0033] In one embodiment, when the air source heat pump stores energy in the storage tank (i.e., heats or cools the energy medium inside the storage tank), the air source heat pump inlet is connected to the lower outlet of the storage tank, and the air source heat pump outlet is connected to the upper inlet of the storage tank. When the storage tank supplies heating or cooling to a heating / cooling device, the upper interface of the storage tank becomes the outlet, connected to the inlet of the heating / cooling device along with the air source heat pump outlet. The lower interface of the storage tank becomes the inlet, connected to the outlet of the heating / cooling device along with the air source heat pump inlet. The inlet and outlet of the storage tank may be switched depending on the operating state. The inlet of the energy recovery buffer tank is connected to the energy recovery pipeline of the heating / cooling device, and the outlet is connected to the heating / cooling device. The controller controls the start and stop operation of the air source heat pump.

[0034] In one embodiment, the energy recovery buffer tank is equipped with a first temperature detector and a first liquid level detector, which transmit detection signals to the controller. The energy storage tank is equipped with a second temperature detector and a second liquid level detector, which also transmit detection signals to the controller. Simultaneously, temperature sensors and liquid level sensors are installed inside the energy recovery buffer tank and the energy storage tank. Real-time monitoring of these two parameters ensures the hydraulic balance of the system, reduces energy loss by 15%, improves water resource utilization, and achieves a temperature gradient control accuracy of ±0.5℃.

[0035] In one specific embodiment, when the second liquid level detector detects that the water level in the energy storage tank has dropped below the safety line, the controller activates the municipal water replenishment system to inject water at a flow rate of 0.8 m³ / h, while the second temperature detector monitors water temperature changes in real time. If the water temperature fluctuates from 58°C to 56.3°C during a water replenishment process, the system automatically adjusts the heat pump output power to maintain a stable temperature.

[0036] In one embodiment, the delivery network includes a power supply pipeline, a return pipeline, an electrically controlled valve, a first circulation pump, and a second circulation pump. The first circulation pump is used to store energy in an energy storage tank using an air-source heat pump, i.e., to heat or cool the energy medium inside the energy storage tank. The second circulation pump is used to heat or cool the energy medium in the heating and cooling equipment using an air-source heat pump and / or the energy storage tank. The electrically controlled valve is used to control the connection or closure of the pipeline. Both the electrically controlled valve and the circulation pump are communicatively connected to a controller. The modular pipeline design enables rapid switching between various operating conditions, resulting in energy savings of over 35% for the circulation pump, while simultaneously improving the response speed of the solenoid valve.

[0037] In one embodiment, the delivery network includes a first circulation branch, a second circulation branch, and a third circulation branch arranged in parallel and / or in series. The first circulation branch connects the air source heat pump unit and the energy storage tank through an electrically controlled valve and a first circulation pump when the air source heat pump stores energy in the energy storage tank. The second circulation branch connects the energy storage tank and the energy storage equipment through an electrically controlled valve, a second circulation pump, and a return energy buffer tank when the energy storage tank supplies cooling or heating. The third circulation branch connects the air source heat pump unit and the cooling or heating equipment through an electrically controlled valve, a second circulation pump, and a return energy buffer tank when the air source heat pump supplies cooling or heating. The first circulation branch has multiple branch pipes, each connected to a single energy storage tank via an independent electrically controlled valve. The second circulation branch also has multiple branch pipes, each connected to a single energy storage tank via an independent electrically controlled valve, and includes a regional distribution network that connects to the fan coil units and underfloor heating coils of each parking area via regional electrically controlled valve groups. The third circulation branch also includes a regional distribution network that connects to the fan coil units and underfloor heating coils of each parking area via regional electrically controlled valve groups. This dual-circulation system enables time-sharing and zone-based control, thereby reducing ineffective energy consumption and improving system reliability.

[0038] In one embodiment, the system further includes: a photovoltaic power supply module connected to an air source heat pump group and an auxiliary heater via a dual power switch; a temperature control switch is installed on the outer wall of the energy recovery buffer box and the energy storage tank, and the temperature control switch is connected in series in the power supply circuit of the auxiliary heater. The controller is configured to prioritize photovoltaic power supply and switch to mains power when the photovoltaic power supply module is insufficient, and the dual power supply switching status is synchronously uploaded to the controller.

[0039] In one embodiment, an automatic exhaust valve is provided at the top of the exhaust pipe of the energy recovery buffer box, which is connected to the air source heat pump and the transmission network circuit. It is used to allow the gas mixed in during energy recovery to float up and be discharged naturally, preventing water pump air resistance and main unit protection alarm. The exhaust valve is connected to the controller to automatically discharge the gas.

[0040] In one embodiment, the bottom of the energy recovery buffer tank is provided with a drain valve, which is connected to an external sewage system through a drain pipe. The drain valve is opened periodically by the controller according to the system operation cycle to remove impurities deposited in the circulating water and prevent pipe blockage.

[0041] In one embodiment, a temperature control switch is connected in series with a first auxiliary heater in the energy recovery buffer box and a temperature control switch is connected in series with a second auxiliary heater in the energy storage tank. The corresponding temperature control switch is directly connected in series in the power supply circuit of the heater. When the internal temperature of the energy recovery buffer box or the energy storage tank is detected to exceed the preset temperature threshold, the power supply is automatically disconnected to protect the first auxiliary heater. The temperature control switch detection signal is synchronously transmitted to the controller.

[0042] In one embodiment, the system includes at least two air source heat pumps, which are independently connected to the transmission network. They can independently store energy for the energy storage tank or supply energy for heating and cooling equipment. They can also be switched on and off in conjunction with a controller to improve overall energy efficiency and system stability.

[0043] In one embodiment, the controller is equipped with a heating / cooling rate monitoring module to compare the temperature change curves of each area in real time. When the heating / cooling rate is lower than a set threshold, the controller dynamically adjusts the output power of the air source heat pump, increases the output of the auxiliary heater, or switches to a strategy of releasing cold / heat energy using an energy storage tank.

[0044] In one embodiment, the controller receives real-time temperature signals collected by a temperature detector to determine whether to start an auxiliary heater or an air-source heat pump for heating or cooling, and stops the corresponding equipment when the temperature reaches the target temperature or exceeds the limit. At the same time, it determines whether to control the replenishment of energy medium based on the liquid level detector signal.

[0045] In one embodiment, the controller determines whether a parking area is in a first state (no one / no car) or a second state (someone / car) based on the pedestrian and vehicle flow status of each area. It then dynamically adjusts the heating and cooling strategies for each area based on the different states, achieving energy-saving control with a small temperature control range in the first state and a large temperature control range in the second state. In the first state, the controller prioritizes direct supply of energy from the energy recovery buffer tank to a low-power operating mode. In the second state, the controller jointly utilizes the air source heat pump, energy storage tank, and auxiliary heater for rapid temperature adjustment.

[0046] In one embodiment, the system supports remote cloud control. The controller can connect to a cloud server and perform system energy consumption analysis, temperature control strategy optimization, adaptive adjustment, and remote firmware upgrades through data upload.

[0047] The energy-saving regulation and energy storage control system in this embodiment protects the energy storage tank from overheating through both software and hardware mechanisms. The software protection mechanism reads the energy medium temperature of the energy storage tank in real time. When the energy medium temperature is greater than or equal to the set protection temperature, the controller automatically stops the energy storage tank from heating, thus implementing a software protection mechanism for overheating. The hardware protection mechanism adds a temperature control switch to the side of the energy storage tank, connected in series with the power supply circuit of the auxiliary heater. When the temperature control switch detects that the outer surface temperature of the energy storage tank is greater than or equal to its disconnection temperature, the switch automatically disconnects, cutting off the power supply to the auxiliary heater and stopping the energy storage tank from heating, thus implementing an automatic hardware protection mechanism for overheating. Similarly, this system also protects the energy recovery buffer box from overheating through both software and hardware mechanisms. The software protection mechanism reads the energy medium temperature of the energy recovery buffer box in real time. When the energy medium temperature is greater than or equal to the set protection temperature, the control system automatically stops the energy recovery buffer box from heating, thus implementing a software protection mechanism for overheating. The hardware protection mechanism involves adding a temperature control switch to the side of the energy recovery buffer box. The temperature control switch is also connected in series with the power supply circuit of the auxiliary heater of the energy recovery buffer box. When the temperature control switch detects that the temperature of the outer surface of the energy recovery buffer box is greater than or equal to the temperature at which the temperature control switch is turned off, the temperature control switch will automatically turn off, cutting off the power supply to the auxiliary heater of the energy recovery buffer box, thereby stopping the energy recovery buffer box from heating.

[0048] like Figure 3 As shown, another embodiment of this application simultaneously provides an energy-saving regulation and control step for both cooling and heating and energy-saving energy storage, applied to the energy-saving management and control system described above. The step includes: S1: Obtain the current temperature value and usage status of different areas in the parking lot. The usage status includes a first state with no objects entering or exiting and a second state with objects entering or exiting. The objects include one or more of pedestrians and vehicles. S2: In the first state, when the current temperature value meets the adjustment requirements, the energy recovery buffer box, energy storage tank, air source heat pump, transmission network, and heating and cooling equipment are controlled based on the first adjustment strategy so that the temperature of the corresponding area is limited to the first range. S3: In the second state, when the current temperature value meets the adjustment requirements, the energy recovery buffer box, energy storage tank, air source heat pump, transmission network, and heating and cooling equipment are controlled based on the second adjustment strategy so that the temperature of the corresponding area is limited to the second range. The first adjustment strategy differs from the second adjustment strategy, and the first range is smaller than the second range.

[0049] In this embodiment, the parking lot is divided into multiple heating and cooling zones based on its space and structure, as described above. Each heating and cooling zone includes heating and cooling equipment. Each zone in this embodiment includes one fan coil unit and one underfloor heating coil unit; however, multiple sets can also be included, such as multiple fan coil units and underfloor heating coil units per zone. The specific configuration is flexible and depends on the actual size of the zone and the heating and cooling demand. The fan coil units are equipped with temperature detection devices to monitor the current zone temperature and upload this data to the controller of the energy-saving management system. The controller then uses this temperature data to determine how to control the supply of cooling and heating energy to that zone.

[0050] In this embodiment, the states of each area are divided into a first state and a second state. The first state is a state where there are no people or vehicles moving, and the second state is a state where there are people, vehicles, or people and vehicles moving. Under different states, the controller uses different adjustment strategies to control the system to supply cooling or heating energy to the target area. The cooling and heating energy is generated by an energy medium through heating and cooling. This embodiment uses water as an example of the energy medium, but water is not a limiting feature of this embodiment. Furthermore, when the energy medium is water, the energy return buffer tank can be, but is not limited to, a water return tank.

[0051] For example, when the system is heating a region, each region maintains a temperature of 14°C in the first state and 18°C ​​in the second state. Of course, these temperature values ​​are not fixed and can be other values. When no pedestrians or vehicles are approaching or entering any region, the system (controller) first activates a low-power, energy-saving heating mode to ensure a temperature of 14°C in each region (this value can be set and modified through the system user software). Then, it calculates in real-time whether pedestrians or vehicles are approaching or entering each region based on data collected by pedestrian or vehicle detection devices in the parking lot or the driving routes planned by the parking lot control system. When a pedestrian or vehicle approaches or enters the corresponding area, the system determines that the area is in its second state and quickly activates the high-temperature rapid heating mode to rapidly raise the temperature from 14°C to the predetermined 18°C ​​(this value can be set and modified through the system user software). This ensures that the temperature in the area meets the requirement when pedestrians or vehicles approach or enter, and stops heating when the pedestrians or vehicles leave, i.e., when the area re-enters the first state, allowing the temperature to drop back to 14°C. If no pedestrians or vehicles approach or enter the area, the system will adjust the heating based on temperature monitoring data, using a low-power energy-saving heating mode for continuous or intermittent heating to maintain the temperature in each area at 14°C, achieving energy savings. Similarly, if the area remains in the second state, the system uses both the high-temperature rapid heating mode and the low-power energy-saving heating mode for continuous or intermittent heating to maintain the temperature in the area at 18°C. Similarly, when cooling is provided, i.e., when cooling is provided to different areas of the parking lot in different first and second states based on the first and second strategies respectively, the temperature of the area is controlled according to the different states.

[0052] In one embodiment, the step further includes: S4: When the current photovoltaic power is sufficient, or when the current grid power is in a low electricity price period, if all air source heat pumps are idle, start all air source heat pumps and connect the electronic control valves and the first circulation pump in the transmission network between the air source heat pumps and the energy storage tanks. At the same time, control the remaining electronic control valves and the second circulation pump to close, so as to store energy for each energy storage tank to be stored one by one. S5: If some air source heat pumps are in an idle state and some air source heat pumps are in a state of supplying heat or cold energy to heating and cooling equipment, then start the air source heat pumps in the idle state and connect the electric control valves and the first circulation pump between the air source heat pumps in the idle state and the energy storage tanks in the transmission network, so as to use the air source heat pumps in the idle state to store energy for each energy storage tank to be stored one by one. S6: Alternatively, start an idle air source heat pump, and open the solenoid valve between the heating / cooling equipment in the transmission network and the air source heat pump, so that all air source heat pumps supply heat or cooling energy to the heating / cooling equipment together until the temperature in the parking lot area is within the corresponding range. Then, close the second circulation pump and the energy return buffer tank, and the electric control valve between the air source heat pump and the heating / cooling equipment. At the same time, open the electric control valve between the first circulation pump and the air source heat pump and the energy storage tank to be stored, so as to store energy for each energy storage tank one by one.

[0053] For example, the system (controller) can incorporate peak-valley electricity pricing schedules for the parking lot's location. Simultaneously, the system has a built-in perpetual calendar function, which calculates the period with the lowest peak-valley electricity prices (off-peak hours) and sets the system to automatically activate energy storage strategies during these off-peak hours. Specifically, the system can activate air-source heat pumps to supply energy to storage tanks 1, 2, and 3 (e.g., based on the current energy medium temperature of the storage tanks and the current ambient temperature). Figure 2 The energy medium stored inside the storage tank (as shown) is used for cooling or heating energy storage. When the electricity price exceeds the lowest price during off-peak hours, the air source heat pump stops cooling or heating the energy medium inside the storage tank. Simultaneously, during peak hours, i.e., when the electricity price is highest, the air source heat pump automatically stops supplying energy, and the cold or hot energy in storage tanks 1, 2, and 3 is released to provide cooling or heating energy to all areas. Specifically, the control strategies of the above embodiments are as follows: Currently, the grid electricity is in a low-price period. For example, if the system detects that 1 PM to 5 PM is the daily low-price period, the system can start storing energy for cooling or heating in storage tanks 1, 2, and 3 using air source heat pumps at 1 PM. Alternatively, when the photovoltaic power is sufficient, the system can enter the energy storage phase, using air source heat pumps to cool or heat the energy media in storage tanks 1, 2, and 3, achieving both cold and heat energy storage. Before entering the energy storage phase, the outdoor and indoor temperatures need to be determined. Based on the determination, one air source heat pump is activated for energy storage, while the other provides cooling or heating to all areas (areas with insufficient temperature). Once cooling or heating is achieved for all areas, both air source heat pumps then enter energy storage mode together to store energy in the storage tanks; or, both air source heat pumps can be activated simultaneously to provide cooling or heating to all areas, and then enter energy storage mode together once cooling or heating is achieved for all areas. The criteria for discrimination are as follows: When performing cold energy storage, if the outdoor temperature exceeds the user-set temperature threshold for the dual air source heat pump cooling mode, or when performing heat energy storage, if the outdoor temperature is below the user-set temperature threshold for the dual air source heat pump heating mode, the system will activate both air source heat pumps to provide cooling or heating to all areas. Once all areas are adequately cooled or heated, the system will then switch to energy storage mode. Otherwise, when performing cold energy storage, if the outdoor temperature is below the user-set temperature threshold for the dual air source heat pump cooling mode, or when performing heat energy storage, if the outdoor temperature is above the user-set temperature threshold for the dual air source heat pump heating mode, one air source heat pump will be activated for energy storage, while the other will provide cooling or heating to all areas. Once all areas are adequately cooled or heated, the system will then switch to energy storage mode. When activating the dual air source heat pumps (i.e.,...) Figure 2 The two air source heat pumps in the system work together to provide cooling or heating to all areas until the cooling or heating needs of all areas are met, i.e., when the temperature of all areas meets the requirements, the two air source heat pumps then enter the energy storage mode together. The specific control steps include: When two air source heat pumps work together to provide cooling or heating for all areas, such as Figure 2As shown, air source heat pumps 1 and 2 start working, and electrically controlled valves 1, 28, 2, 27, 3, 26, 25, and 4 are closed, while all other electrically controlled valves are open. Circulation pump 1 stops working, and circulation pump 2 starts working, with both air source heat pumps working together to provide cooling or heating to all areas. When the cooling or heating needs of a corresponding area are met, the corresponding electrically controlled valve closes; for example, for area 1, electrically controlled valves 9, 10, 19, and 20 are closed. When the cooling or heating needs of all areas are met, electrically controlled valve 8 closes, circulation pump 1 starts working, circulation pump 2 stops working, and electrically controlled valves 1 and 28 open. The dual air source heat pumps begin cooling or heating the energy medium inside storage tank 1. When the temperature detection device inside storage tank 1 detects that the internal energy medium temperature equals the user-set storage temperature (this value can be set and modified through the system user software), the electric control valve 1 closes first. Simultaneously, when the liquid level detection device inside storage tank 1 detects that the internal liquid level equals the user-set storage liquid level, the electric control valve 28 closes, and the dual air source heat pumps stop cooling or heating the energy medium inside storage tank 1. Then, the electric control valves 2 and 27 open simultaneously, and the dual air source heat pumps begin cooling or heating the energy medium inside storage tank 2. When the temperature detection device inside storage tank 2 detects that the internal energy medium temperature equals the user-set storage temperature (this value can be set and modified through the system user software), the electric control valve 2 closes first. Simultaneously, when the liquid level detection device inside storage tank 2 detects that the internal liquid level equals the user-set storage liquid level (this value can be set and modified through the system user software), the electric control valve 27 closes then. At this point, the dual air source heat pumps stop cooling or heating the energy medium inside storage tank 2, and simultaneously open the electronic control valves 3 and 26, allowing the dual air source heat pumps to begin cooling or heating the energy medium inside storage tank 3. When the temperature detection device inside storage tank 3 detects that the internal energy medium temperature equals the user-set storage temperature (this value can be set and modified through the system user software), electronic control valve 3 is closed first. Simultaneously, when the liquid level detection device inside storage tank 3 detects that the internal liquid level equals the user-set storage liquid level (this value can be set and modified through the system user software), electronic control valve 26 is closed. At this point, the dual air source heat pumps stop cooling or heating the energy medium inside storage tank 3, completing one energy storage cycle. When the corresponding area requires cooling or heating again during energy storage, the system prioritizes switching to provide cooling or heating to that area. Once the cooling or heating needs of all areas are met again, the system switches back to energy storage mode, and this cycle repeats. When switching from energy storage mode to cooling or heating mode, the solenoid valve 4 is closed and the solenoid valve 8 is opened; circulation pump 1 stops working and circulation pump 2 starts working.If the current photovoltaic power is insufficient, or if it is determined that the current time is not between 1:00 and 5:00, the system will not enter the energy storage mode. If it is already in the energy storage mode, it will automatically exit the energy storage mode.

[0054] When air source heat pump 1 stores energy and air source heat pump 2 provides cooling or heating to all areas, first close the electronic control valves 6 and 23 to separate the working areas of the two air source heat pumps; then close the electronic control valves 2, 27, 3, 26, and 25, allowing air source heat pump 1 to store energy only for storage tank 1, while all other electronic control valves remain open. Circulation pump 2 and air source heat pump 2 then start operating to provide cooling or heating to all areas. Circulation pump 1 and air source heat pump 1 then start operating, beginning to cool or heat the energy medium inside storage tank 1. When the temperature detection device inside storage tank 1 detects that the internal energy medium temperature value equals the user-set storage temperature value (this value can be set and modified through the system user software), first close electronic control valve 1. Simultaneously, when the liquid level detection device inside storage tank 1 detects that the internal liquid level value equals the user-set storage liquid level value, then close electronic control valve 28. At this point, air source heat pump 1 stops storing energy for cooling or heating the energy medium inside storage tank 1. Then, simultaneously opening electronic control valves 2 and 27, the air source heat pump 1 begins to cool or heat the energy medium inside the energy storage tank 2. When the temperature detection device inside the energy storage tank 2 detects that the internal energy medium temperature value equals the user-set energy storage temperature value (this value can be set and modified through the system user software), electronic control valve 2 is closed first. Simultaneously, when the liquid level detection device inside the energy storage tank 2 detects that the internal liquid level value equals the user-set energy storage liquid level value, electronic control valve 27 is closed. At this point, the air source heat pump 1 stops cooling or heating the energy medium inside the energy storage tank 2. Then, simultaneously opening electronic control valves 3 and 26, the air source heat pump 1 begins to cool or heat the energy medium inside the energy storage tank 3. When the temperature detection device inside energy storage tank 3 detects that the internal energy medium temperature equals the user-set energy storage temperature, it first closes the electric control valve 3. Simultaneously, when the liquid level detection device inside energy storage tank 3 detects that the internal liquid level equals the user-set energy storage liquid level, it then closes the electric control valve 26. At this point, the air source heat pump 1 stops cooling or heating the energy medium inside energy storage tank 3. This process completes the energy storage cycle for all energy storage tanks. If the current photovoltaic power supply is sufficient, or if the current grid electricity is at a low-valley price during the local peak-valley electricity price period, and if air source heat pump 1 is storing energy, when air source heat pump 2 meets the cooling or heating needs of all areas, it automatically switches to energy storage mode to store energy together with air source heat pump 1. When the corresponding area requires cooling again, air source heat pump 2 switches back to provide cooling or heating to the corresponding area. When the cooling or heating needs of all areas are met again, it switches back to energy storage mode, and this cycle repeats. When the air source heat pump 2 switches from energy storage mode to cooling or heating mode, close the electric control valves 6 and 23, open the electric control valve 8, and start the circulation pump 2. At the same time, the electric control valves of the areas requiring cooling or heating should be opened. When the air source heat pump 2 switches from cooling or heating mode to energy storage mode, close the electric control valve 8, open the electric control valves 6 and 23, stop the circulation pump 2, and at the same time, close all electric control valves of the areas requiring cooling or heating.If the current photovoltaic power is insufficient, or if the current time is not between 1:00 and 5:00, i.e., not during off-peak electricity price periods, air source heat pumps 1 and 2 will not enter energy storage mode. If they are in energy storage mode, they will automatically exit energy storage mode.

[0055] In another embodiment, the step further includes: S7: When the photovoltaic power energy is sufficient or the grid power is at a low off-peak price, start the auxiliary heater in the energy storage tank to be stored to heat the energy storage tank and store thermal energy. S8: When the temperature of the energy medium in the energy storage tank reaches the target value, control the auxiliary heater to stop heating.

[0056] For example, in this embodiment, if it is determined that the current power supply is from photovoltaic power and the power is sufficient, the energy storage strategy can be automatically activated. Alternatively, if the photovoltaic power supply is insufficient but the current time is during a low-off-peak electricity price period, the system will also automatically activate the energy storage strategy. The energy storage strategy involves controlling the three energy storage tanks to simultaneously activate their respective auxiliary heaters to heat and store energy in the energy medium inside the tanks. If the photovoltaic power supply is insufficient and the current time is outside a low-off-peak period, or if the system uses grid power for energy storage but the current time is outside a low-off-peak period, the auxiliary heaters will stop heating and storing energy in the energy medium inside the tanks. When the system determines that the current power supply is from the grid and the peak electricity price period for the region is in effect, the system releases the heat energy from energy storage tanks 1, 2, and 3 to provide heating for the area requiring power. The specific control strategy includes: When storing energy in an energy storage tank, the system first determines whether the current photovoltaic (PV) power is sufficient for energy storage. If so, PV power is used for storage. If PV power is insufficient, but the current time is between 1 AM and 5 AM, which is a low-price period, then mains power can be used for energy storage. In this embodiment, power switching is achieved using a dual-power intelligent switching device within the system. The energy storage strategy in this embodiment allows all three energy storage tanks to simultaneously activate their auxiliary heaters to heat the energy medium inside the tanks. When the temperature detection device inside the energy storage tank detects that the internal energy medium temperature equals the user-set storage temperature (this value can be set and modified through the system's user software), or when the time exceeds the 1 AM to 5 AM time period and PV power supply is insufficient, the auxiliary heater of the corresponding energy storage tank is controlled to stop heating.

[0057] In other words, to further save energy, this embodiment includes a photovoltaic power supply system and a dual-power intelligent switching device. When storing energy in the energy storage tank, it is first determined whether the photovoltaic power supply system can provide power. If it can, the photovoltaic power supply system is used first. If the photovoltaic power supply system cannot meet the power demand, it is then determined whether it is during a low-off-peak electricity price period. If so, it switches to mains power to achieve energy storage in the energy storage tank. In addition, during non-low-off-peak electricity price periods, the power required for the operation of the energy-saving management system is also preferentially supplied by the photovoltaic power supply system. It can flexibly adjust the connected loads according to its power volume, such as supplying power only to the air source heat pump, or only to the transmission network, or to the heating and cooling equipment, or simultaneously to the air source heat pump, heating and cooling equipment, or even to the entire heating and cooling system. The specific application is not limited to one option. For electrical components that cannot be supplied by the photovoltaic power supply system, mains power is used.

[0058] Furthermore, the first and second adjustment strategies in this embodiment include determining energy storage tanks that can be used to supply cooling or heating energy based on the temperature of the energy storage tank and temperature regulation requirements during peak electricity price periods when the grid power supply is available and the local peak-valley electricity price is in effect. The determined energy storage tanks are used preferentially to supply cooling or heating energy to the cooling and heating equipment. When there are multiple determined energy storage tanks, each energy storage tank is used one by one to supply cooling or heating energy to the cooling and heating equipment. When the temperature of the energy medium of each energy storage tank does not match the temperature regulation requirements, it is controlled to stop supplying the energy medium.

[0059] For example, if the system detects that 9:00 AM to 12:00 PM is the peak electricity price period each day, when the system determines 9:00 AM, it first determines the operating mode of the air source heat pump. If it is in cooling mode, it then checks the temperature of the energy medium in each storage tank. If the temperature detection device inside the storage tank detects an energy medium temperature value less than (the user-set stop cooling temperature value - error value), the corresponding storage tank can release cooling energy to cool all areas; otherwise, it will not release energy. If it is in heating mode, it then checks the temperature of the energy medium in each storage tank. If the temperature detection device inside the storage tank detects an energy medium temperature value greater than (the user-set stop heating temperature value + error value), the corresponding storage tank can release heating energy to heat all areas; otherwise, it will not release energy. If it is determined that the current state of all energy storage tanks does not allow the release of cold or heat energy, then the air source heat pump will provide cold or heat energy to all areas for cooling or heating. If it is subsequently determined that there is an energy storage tank that is allowed to release cold or heat energy, then the air source heat pump will be stopped, and the corresponding energy storage tank will be started to release cold or heat energy to provide heating or cooling to all areas. The specific control steps include: like Figure 2As shown, air source heat pumps 1 and 2 stop working, and their electronic control valves 5, 7, 24, and 22 close. Circulation pump 1 stops working, and circulation pump 2 starts working. At this time, the energy stored in energy storage tank 1 is used for cooling or heating. Its electronic control valves 1, 28, 4, 6, 8, 23, and 25, as well as the electronic control valves for the heating or cooling areas, open. The system begins to provide heating or cooling to all areas using the heat or cold energy stored in energy storage tank 1. Energy storage tanks 2 and 3 do not provide heating or cooling temporarily, so their electronic control valves 2, 27, 3, and 26 are closed. After all the heat energy in energy storage tank 1 is released, it will gradually replace the energy storage tank. For example, when the temperature detection device in energy storage tank 1 detects that the energy medium temperature value equals the user-set stop heating or cooling temperature value, electronic control valve 1 closes first, and energy storage tank 1 stops providing heating or cooling. At the same time, when the liquid level detection device in its energy storage tank detects that the liquid level value equals the user-set energy storage liquid level value, electronic control valve 28 closes. Then, energy storage tank 2 begins to replace energy storage tank 1 in providing heating or cooling to all areas, and its electrically controlled valves 2 and 27 open. When the temperature detection device inside energy storage tank 2 detects that the energy medium temperature value equals the user-set stop heating or cooling temperature value, electrically controlled valve 2 closes first, and energy storage tank 2 stops providing heating or cooling. Simultaneously, when the liquid level detection device inside the energy storage tank detects that the liquid level value equals the user-set energy storage liquid level value, electrically controlled valve 27 closes then. Energy storage tank 3 then begins to replace energy storage tank 2 in providing heating or cooling to all areas, and its electrically controlled valves 3 and 26 open. When the temperature detection device inside energy storage tank 3 detects that the energy medium temperature value equals the user-set stop heating or cooling temperature value, electrically controlled valve 3 closes first, and energy storage tank 3 stops providing heating or cooling. Simultaneously, when the liquid level detection device inside the energy storage tank detects that the liquid level value equals the user-set energy storage liquid level value, electrically controlled valve 26 closes then. At this time, the system automatically switches to the air source heat pump to provide heating or cooling for all areas. Electrical control valves 4 and 25 are closed, and electrical control valves 5, 24, 7, and 22 are opened. This completes the cycle of the energy storage tank releasing heat or cold energy to provide heating or cooling for all areas. The system will wait for the next energy storage to be completed before releasing the energy again, and then enter the next release cycle, and so on.

[0060] In another embodiment, the first regulation strategy and the second regulation strategy further include detecting whether the temperature in the parking lot meets the requirements after the energy storage tank supplies heat or cold energy in the first time period, or detecting whether the change in temperature in the parking lot meets the requirements in the second time period. If not, one or more of the air source heat pumps are controlled to start, and the corresponding pipelines in the transmission network are controlled to be connected, so that the energy medium of the energy return buffer box is heated or cooled by the air source heat pump and then input into the heating and cooling equipment.

[0061] For example, when one or more energy storage tanks release heat or cold energy to heat or cool all areas, the system will monitor the temperature increase or decrease data of the heated or cooled areas in real time. If the temperature of the heated or cooled area does not reach the expected level within a certain period of time, such as a temperature rise of less than 2 degrees Celsius within 10 minutes of heating (this value can be set and adjusted through the system user software), or a temperature drop of less than 2 degrees Celsius within 10 minutes of cooling (this value can be set and adjusted through the system user software), the system will automatically start the air source heat pump 2 to assist in heating or cooling all areas. When the air source heat pump 2 assists in heating or cooling all areas, simply start the air source heat pump 2 and open the electronic control valves 7 and 22. If the temperature rise in the area assisted by air source heat pump 2 is still less than 2 degrees Celsius within 10 minutes of heating, or the temperature drop in the area assisted by air source heat pump 2 is still less than 2 degrees Celsius within 10 minutes of cooling, the system will automatically activate dual air source heat pumps to assist in heating or cooling all areas. When dual air source heat pumps are assisting in heating or cooling all areas, simply activate air source heat pumps 1 and 2 and open the electronic control valves 7, 22, 5, and 24.

[0062] In another embodiment, the heating and cooling equipment includes a first device with cooling and heating functions, and a second device with heating function. The first device and the second device are provided in each area of ​​the parking lot. As mentioned above, the first device may be, but is not limited to, a fan coil unit, and the second device may be a floor heating coil unit.

[0063] The control of the energy recovery buffer box, energy storage tank, air source heat pump, transmission network, and heating and cooling equipment based on the first regulation strategy to limit the temperature of the corresponding area to a first range includes: S12: When the temperature of the area in the first state needs to be raised to the corresponding specified temperature, control the opening of the energy return buffer box, the air source heat pump, the second circulation pump in the transmission network, and the electrically controlled valve for connecting the energy return buffer box, the air source heat pump and the second equipment pipeline in the corresponding area, and close the other devices, so that the air source heat pump supplies heat energy to the second equipment until the temperature of the area reaches the specified temperature. S13: When the temperature of the area in the first state needs to be cooled down to the corresponding specified temperature, the energy recovery buffer box, the air source heat pump, the second circulation pump in the transmission network, and the electrically controlled valve for connecting the energy recovery buffer box, the air source heat pump and the first equipment pipeline in the corresponding area are opened, and the other devices are closed, so that the air source heat pump supplies cooling energy to the first equipment until the temperature of the area reaches the specified temperature.

[0064] For example, during the heating season, when the system detects that no pedestrians or vehicles are approaching or entering the heating areas, it automatically activates a low-power energy-saving heating mode, which uses an air-source heat pump to provide heat to the underfloor heating coils. The control steps are as follows: When air source heat pump 1 stops working, air source heat pump 2 starts working; when circulation pump 1 stops working, circulation pump 2 starts working; when fan coil units 1, 2...N stop working, the corresponding electronically controlled valves 10, 19, 12, 17, 14, 15 and 1, 28, 2, 27, 3, 26, 25, 4, 5, 24, 6, 23 close, and electronically controlled valves 7, 22, 8, 9, 20, 11, 18, 13, 16 open. The system delivers heat energy to the floor heating coils 1, 2...N through air source heat pump 2, thus providing low-power heating for areas 1, 2...N. Simultaneously, the system monitors the temperature of each area in real time. When the temperature in an area where no pedestrians or vehicles are approaching or entering is not less than 14 degrees Celsius (this value can be set and modified through the system user software), heating to that area stops, i.e., the corresponding electronically controlled valve closes. If no pedestrians or vehicles approach or enter area 1, and the temperature is not lower than 14 degrees Celsius, the corresponding electric control valves 9 and 20 close, stopping heating for that area. When the temperature in this area falls below 14 degrees Celsius, the corresponding electric control valves 9 and 20 reopen, resuming heating for that area. This cycle continues, ensuring that the temperature remains at 14 degrees Celsius when no pedestrians or vehicles approach or enter the area. The principle is the same for other areas. When all areas reach the required temperature, air source heat pump 2 and circulation pump 2 stop working, meaning the system stops heating. When the temperature in any area does not meet the required level, air source heat pump 2 and circulation pump 2 start working, and the system re-enters the low-power energy-saving heating mode. This cycle continues, achieving optimal energy-saving performance while maintaining the required temperature.

[0065] During seasons requiring cooling, when the system detects that no pedestrians or vehicles are approaching or entering the cooling areas, it automatically activates a low-power, energy-saving cooling mode. This mode uses an air-source heat pump to provide cooling energy to the fan coil units. The control steps are as follows: All underfloor heating coils stop working, i.e., the corresponding electrically controlled valves close, specifically valves 9, 20, 11, 18, 13, 16 and 1, 28, 2, 27, 3, 26, 25, 4, 5, 24, 6, 23. Air source heat pump 1 stops working, and air source heat pump 2 starts cooling; circulation pump 1 stops working, and circulation pump 2 starts working; fan coil units 1, 2...N start working, and the corresponding electrically controlled valves 10, 19, 12, 17, 14, 15 and 7, 22, 8 open. The system delivers cooling energy to fan coil units 1, 2, and N through air source heat pump 2, providing low-power cooling for areas 1, 2...N. Simultaneously, the system monitors the temperature of each area in real time. When no pedestrians or vehicles approach or enter an area and the temperature does not exceed 30 degrees Celsius (this value can be set and modified through the system user software), cooling for that area stops, i.e., the corresponding fan coil unit and electrically controlled valve are shut down. If no pedestrians or vehicles approach or enter area 1, and the temperature does not exceed 30 degrees Celsius, the corresponding fan coil unit 1 and electrically controlled valves 10 and 19 will close, stopping cooling for that area. When the temperature in this area exceeds 30 degrees Celsius, the corresponding fan coil unit 1 and electrically controlled valves 10 and 19 will reopen, resuming cooling for that area. This cycle continues, ensuring that the temperature in an area remains at or below 30 degrees Celsius when no pedestrians or vehicles approach or enter. The principle is the same for other areas. When all areas reach the required temperature, the air source heat pump 2 and the circulation pump 2 will stop working, meaning the system stops cooling. When the temperature in one area does not reach the required temperature, the air source heat pump 2 will start cooling, and the circulation pump 2 will start working, putting the system back into a low-power, energy-saving cooling mode. This cycle continues, achieving optimal energy-saving performance while maintaining the required temperature.

[0066] The control of the energy recovery buffer box, energy storage tank, air source heat pump, transmission network, and heating and cooling equipment based on the second regulation strategy to limit the temperature of the corresponding area to a second range includes: S14: When the temperature of the area in the second state needs to be raised to the corresponding specified temperature, the first energy storage tank that can provide heat energy is determined according to the temperature of the energy medium in each energy storage tank. The second circulation pump in the energy recovery buffer box, all air source heat pumps, the first energy storage tank, the auxiliary heater in the energy recovery buffer box, the second circulation pump in the transmission network, and the electrically controlled valve for connecting the pipeline between the energy recovery buffer box, the air source heat pump, the first energy storage tank and the first and second equipment in the corresponding area are opened, and the first circulation pump is closed, so that the air source heat pump, the energy recovery buffer box, and the first energy storage tank supply heat energy to the first and second equipment until the temperature of the area quickly reaches the specified temperature. S15: When the temperature of the area in the second state needs to be cooled to the corresponding specified temperature, the second energy storage tank that can provide cooling energy is determined according to the temperature of the energy medium in each energy storage tank. The energy recovery buffer box, all air source heat pumps, the second energy storage tank, the second circulation pump in the transmission network, and the electrically controlled valve for connecting the energy recovery buffer box, air source heat pump, second energy storage tank and the first equipment room pipeline in the corresponding area are opened, and the other devices are closed, so that the air source heat pump, energy recovery buffer box, and second energy storage tank supply cooling energy to the first equipment until the temperature of the area quickly reaches the specified temperature.

[0067] For example, when the system detects pedestrians or vehicles approaching or entering a heating area, it will quickly activate the high-temperature rapid heating mode, which involves starting dual air source heat pumps, activating the auxiliary heater in the energy recovery buffer box, and simultaneously supplying heat to the fan coil units and underfloor heating coils in all areas via energy storage tanks 1, 2, and 3. Figure 4 As shown, the control steps are as follows: Circulation pump 1 stops working. Circulation pump 1 only starts when the air source heat pump is storing energy in the storage tank. That is, when the system is not storing energy in the storage tank through the air source heat pump, circulation pump 1 stops working. Circulation pump 2 starts working, and air source heat pumps 1 and 2 start heating. The energy return buffer tank starts auxiliary heating. The corresponding electronic control valves 1, 28, 2, 27, 3, 26, 25, 4, 5, 24, 6, 23, 7, 22, and 8 open, and storage tanks 1, 2, and 3 release heat energy simultaneously. If the system detects through its internal temperature detection device that the temperature of the energy medium in the corresponding storage tank is less than or equal to the user-set stop heating temperature, the system controls the storage tank to stop releasing heat energy, closes the corresponding electronic control valve, and simultaneously starts the auxiliary heater in the storage tank. This continues until the temperature of the energy medium in the corresponding storage tank exceeds the user-set stop heating temperature. Then, the system controls the auxiliary heater to close and opens the corresponding electronic control valve, releasing heat energy from the storage tank again. In high-temperature accelerated heating mode, the system continuously monitors the temperature of areas where pedestrians or vehicles approach or enter. When the temperature in an area is not lower than 18 degrees Celsius (adjustable), heating for that area is stopped, i.e., the corresponding electric control valve is closed. For example, if a pedestrian or vehicle approaches or enters area 1 and the temperature is not lower than 18 degrees Celsius, the corresponding electric control valves 9, 20, 10, and 19 are closed, stopping heating for that area. When the temperature in this area is lower than 18 degrees Celsius, the corresponding electric control valves 9, 20, 10, and 19 are reopened, restoring heating for that area. This cycle continues to ensure that the temperature remains at 18 degrees Celsius or higher when pedestrians or vehicles approach or enter the area. If the system detects that a pedestrian or vehicle has left the area and no further pedestrians or vehicles are approaching or entering, this area enters low-power energy-saving heating mode, i.e., the area temperature is maintained at 14 degrees Celsius (adjustable) and the underfloor heating coils provide heating. The principle is the same for other areas. When the temperature in all areas where pedestrians or vehicles approach or enter is not less than 18 degrees Celsius, the system automatically enters a low-power energy-saving heating mode. This means the auxiliary heating of the energy return buffer box stops, energy storage tanks 1, 2, and 3 stop releasing heat, air source heat pump 1 stops working, and air source heat pump 2 starts working. Fan coil units 1, 2...N stop working, and the corresponding electronic control valves 10, 19, 12, 17, 14, 15 and 1, 28, 2, 27, 3, 26, 25, 4, 5, 24, 6, 23 close, while electronic control valves 7, 22, 8, 9, 20, 11, 18, 13, 16 open. When the system detects that the temperature in all areas has reached the required level—that is, the temperature in all areas where pedestrians or vehicles approach or enter is not less than 18 degrees Celsius, and the temperature in all areas where no pedestrians or vehicles approach or enter is not less than 14 degrees Celsius—air source heat pump 2 stops working, circulation pump 2 stops working, and the system stops providing heating.When the system detects that the temperature in all areas where pedestrians or vehicles are approaching or entering has reached the required level, while in one or more areas where no pedestrians or vehicles are approaching or entering, the temperature has not reached the required level (i.e., the temperature in all areas where pedestrians or vehicles are approaching or entering is not less than 18 degrees Celsius, while in one or more areas where no pedestrians or vehicles are approaching or entering, the temperature is less than 14 degrees Celsius), the air source heat pump 2 starts heating, the circulation pump 2 starts working, and the system automatically enters a low-power energy-saving heating mode. When the system detects that in one or more areas where pedestrians or vehicles are approaching or entering, the temperature has not reached the required level (i.e., the temperature in one or more areas where pedestrians or vehicles are approaching or entering is less than 18 degrees Celsius), the system automatically enters a high-temperature rapid heating mode again. This cycle repeats to achieve optimal energy-saving performance.

[0068] When the system detects pedestrians or vehicles approaching or entering a certain cooling area, it quickly activates the low-temperature rapid cooling mode. This involves starting the dual air source heat pumps for cooling, releasing cooling energy from storage tanks 1, 2, and 3, and simultaneously providing cooling energy to the fan coil units in all areas. The control steps are as follows: Energy storage tanks 1, 2, and 3 first use their internal temperature detection devices to detect the temperature of the energy medium inside the tank. If the temperature of the energy medium inside the tank is less than the user-set stop cooling temperature, the corresponding electrically controlled valve is opened to release the cooling energy. For example, when the temperature of the energy medium in energy storage tank 1 is less than the user-set stop cooling temperature, electrically controlled valves 1 and 28 are opened; when the temperature of the energy medium in energy storage tanks 1 and 2 is less than the user-set stop cooling temperature, electrically controlled valves 1, 28, 2, and 27 are opened; and when the temperature of the energy medium in energy storage tanks 1, 2, and 3 is less than the user-set stop cooling temperature, electrically controlled valves 1, 28, 2, 27, 3, and 26 are opened. Simultaneously, circulation pump 1 stops working (circulation pump 1 only starts when the air source heat pump is storing energy for the storage tank; that is, when the system is not storing energy for the storage tank through the air source heat pump, circulation pump 1 stops working), and circulation pump 2 starts working. Air source heat pumps 1 and 2 start cooling, and the corresponding electronic control valves 25, 4, 24, 5, 6, 7, 22, and 8 open. This means that the system simultaneously delivers cooling energy to the fan coil units in areas where pedestrians or vehicles are approaching or entering through dual air source heat pumps and storage tanks 1, 2, and 3; this is the low-temperature rapid cooling mode. During cooling, the system monitors the temperature of areas where pedestrians or vehicles are approaching or entering in real time. When the temperature in an area where pedestrians or vehicles are approaching or entering does not exceed 26 degrees Celsius (adjustable), cooling to that area stops, i.e., the corresponding electronic control valve closes. If a pedestrian or vehicle approaches or enters Zone 1, and the temperature does not exceed 26 degrees Celsius, the corresponding electronically controlled valves 19 and 10 close, stopping cooling for that zone. When the temperature in Zone 1 exceeds 26 degrees Celsius, the corresponding electronically controlled valves 19 and 10 reopen, resuming cooling for that zone. This cycle continues to ensure that the temperature remains at or below 26 degrees Celsius when pedestrians or vehicles approach or enter the zone. When the system detects that a pedestrian or vehicle has left the zone and no further pedestrians or vehicles are approaching or entering, the zone enters a low-power energy-saving cooling mode, maintaining the zone temperature at 30 degrees Celsius (adjustable). The principle is the same for other zones. When the temperature in all areas where pedestrians or vehicles approach or enter does not exceed 26 degrees Celsius, the system automatically enters a low-power energy-saving heating mode. This means that energy storage tanks 1, 2, and 3 stop releasing cooling energy, and the corresponding electronic control valves 1, 28, 2, 27, 3, and 26 close. Air source heat pump 1 stops cooling, and the corresponding electronic control valves 5 and 24 close. Air source heat pump 2 starts working, providing cooling for areas where no pedestrians or vehicles approach or enter. When the system detects that the temperature in all areas has reached the required level—that is, the temperature in all areas where pedestrians or vehicles approach or enter does not exceed 26 degrees Celsius, and the temperature in all areas where no pedestrians or vehicles approach or enter does not exceed 30 degrees Celsius—air source heat pump 2 stops working, circulation pump 2 stops working, and the system stops providing cooling.When the system detects that the temperature in all areas with pedestrians or vehicles approaching or entering has reached the required level, while one or more areas without pedestrians or vehicles approaching or entering have a temperature below the required level (i.e., the temperature in all areas with pedestrians or vehicles approaching or entering is no higher than 26 degrees Celsius, while one or more areas without pedestrians or vehicles approaching or entering have a temperature above 30 degrees Celsius), the air source heat pump 2 starts cooling, and the circulation pump 2 starts working, meaning the system automatically enters a low-power energy-saving cooling mode. When the system detects that one or more areas with pedestrians or vehicles approaching or entering have a temperature below the required level (i.e., one or more areas with pedestrians or vehicles approaching or entering have a temperature above 26 degrees Celsius), the system automatically enters a low-temperature rapid cooling mode again. This cycle repeats to achieve optimal energy-saving performance.

[0069] Furthermore, if the parking lot is located in a cold area and the heating efficiency is poor, the steps also include: S16: When the temperature rise of the area within a set time period meets the auxiliary heating requirements, turn on the first device, the air source heat pump in an idle state, and the electrically controlled valve in the transmission network used to connect the air source heat pump with the first device and the second device. S17: When the temperature rise of the area within a set time period meets the auxiliary heating requirements, the auxiliary heater in the energy recovery buffer box is activated. S18: When the temperature rise of the area within a set time period meets the auxiliary heating requirements, the third energy storage tank that can provide heat energy is determined according to the temperature of the energy medium in each energy storage tank, and the electrically controlled valve in the third energy storage tank and the transmission network used to connect the pipeline between the third energy storage tank and the first and second equipment is opened.

[0070] For example, during the heating phase, if the temperature rise in the heating area is insufficient after a period of heating, the fan coil units are activated to provide heat simultaneously with the underfloor heating coils, accelerating the temperature rise. Alternatively, an idle air source heat pump can be started simultaneously to power the first and second devices in the corresponding area. The area temperature is then monitored further. If the heating effect still does not meet the requirements, the auxiliary heating device in the energy return buffer tank is activated to heat the energy medium in the buffer tank, further assisting in the area's temperature rise. If the temperature rise still does not meet the requirements, the available energy storage tank is identified and activated, and the corresponding electrically controlled valve is turned on to power the first and second devices in the corresponding area, thus achieving auxiliary heating of the area and ensuring the required temperature is met. In other words, this embodiment achieves the desired temperature rise by monitoring the area's temperature rise and gradually increasing the number of devices used for auxiliary heating.

[0071] In practical applications, i.e., in heating processes not limited to the above embodiments, the auxiliary heating of the energy recovery buffer box and the auxiliary heating of the energy storage tank can be controlled by the following strategies: The system reads the temperature of the energy medium in the energy recovery buffer tank through a temperature detection device, and then performs logical judgment based on parameters such as indoor temperature, user-demanded temperature, and system running time to determine whether the heating components in the energy recovery buffer tank should provide auxiliary heating. When auxiliary heating is needed, the energy medium in the energy recovery buffer tank can be rapidly heated to reduce heat loss and achieve further energy savings. Simultaneously, when the system activates auxiliary heating in the energy recovery buffer tank, the system also reads the temperature of the energy medium in the energy recovery buffer tank in real time through the temperature detection device, and then performs logical judgment based on indoor temperature and user-demanded temperature to determine whether the auxiliary heater in the energy recovery buffer tank should stop auxiliary heating. The auxiliary heating start / stop strategy of the energy recovery buffer tank includes: Energy recovery buffer box auxiliary heating start-up strategy 1: When both conditions are met—that the total operating time of the air source heat pump is greater than or equal to the total operating time set by the user, and that the indoor temperature is less than the indoor temperature required by the user plus the error value—the auxiliary heater of the energy recovery buffer box will be activated.

[0072] Total operating time of an air source heat pump in a single cycle: that is, the total operating time of an air source heat pump when it is powered on in a single cycle. Total runtime set by the user: The time set by the user through the system user software; Indoor temperature: The indoor temperature of the area requiring heating; Error value: This is a value set by the user through the system user software. Setting this value can prevent the auxiliary heating function from being activated accidentally. This strategy is convenient when parking lots have been without heating for a long time, resulting in low indoor temperatures, and users require a rapid increase in indoor temperature. For example, when the parking lot is heating up the area in the second state, this auxiliary heating, combined with the air source heat pump, can accelerate the increase in indoor temperature for users.

[0073] Energy recovery buffer box auxiliary heating stop strategy 1: If either of these two conditions is met, the system will shut down the auxiliary heater of the energy buffer box. The temperature of the energy medium inside the energy buffer box is greater than or equal to the user-set temperature at which the energy buffer box stops heating; or the indoor temperature is greater than or equal to the user-set indoor temperature - 2 (this value can be set and modified through the system user software).

[0074] Temperature of the energy medium inside the energy recovery buffer box: This is the current temperature of the energy medium inside the energy recovery buffer box. User-set stop heating temperature for the regenerative buffer box: This value is set and modified by the user through the system software. It is mainly to protect the regenerative buffer box from excessively high temperatures that could damage the box or its internal components. Therefore, when the temperature of the energy medium inside the regenerative buffer box reaches the set temperature, the auxiliary heating function of the regenerative buffer box will stop.

[0075] Energy recovery buffer box auxiliary heating start-up strategy 2: When the temperature of the energy medium inside the energy recovery buffer box is less than or equal to the user-set start-up heating temperature of the energy recovery buffer box, and the indoor temperature is less than the user-set indoor required temperature plus the error value, the auxiliary heater of the energy recovery buffer box will be started.

[0076] Temperature of the energy medium inside the energy recovery buffer box: This is the current temperature of the energy medium inside the energy recovery buffer box. User-set start-up heating temperature of the energy recovery buffer box: Users can set and modify this temperature through the system user software. When the temperature of the current energy medium in the energy recovery buffer box is too low, it indicates that the current heating effect of the air source heat pump is not as expected, which is generally due to the current outdoor temperature being too low.

[0077] This strategy is convenient for automatically activating the auxiliary heating function of the energy recovery buffer box when the outdoor temperature is too low, causing the air source heat pump to fail to achieve the user's required temperature. This auxiliary heating, combined with the air source heat pump heating, can quickly raise the indoor temperature.

[0078] Energy recovery buffer box auxiliary heating stop strategy 2: If either of these two conditions is met, the system will shut down the auxiliary heater of the energy recovery buffer box.

[0079] In addition, the energy recovery buffer tank in this embodiment is also connected to a replenishment energy medium pipeline to achieve automatic energy medium replenishment in conjunction with the liquid level detection device. A lack of energy medium in an air source heat pump will affect its heating performance, increase its operating time, and thus increase electricity consumption. This system, by adding a liquid level detection device to the energy recovery buffer tank, can read the liquid level of the energy medium in the buffer tank in real time. When the system detects that the liquid level is lower than the set replenishment level, it controls the electrically controlled valve in the energy medium replenishment pipeline to open and replenish the energy medium for the air source heat pump. During energy medium replenishment, the system reads the liquid level of the replenished energy medium in the buffer tank in real time through the energy recovery buffer tank liquid level detection device. When the liquid level reaches the set replenishment level, it controls the electrically controlled valve to close, stopping the replenishment of energy medium. Through the above functions, it is ensured that the air source heat pump always has a normal amount of energy medium for normal use, resulting in stable heating performance, stable system power consumption, and no additional increase in system power consumption, thereby achieving energy-saving effects.

[0080] Logic for activating the energy replenishment mechanism: If the level in the energy recovery buffer tank is less than or equal to the system's set replenishment level, the energy replenishment medium function will be activated.

[0081] Logic for stopping energy replenishment: When the level in the energy recovery buffer tank is greater than or equal to the system's set stop replenishment level, the energy replenishment function will stop.

[0082] The control of auxiliary heating in the energy storage tank includes: the system reads the temperature of the energy medium in the energy storage tank through a temperature detection device, and then performs logical judgment based on parameters such as indoor temperature, user demand temperature, and the temperature of the energy medium in the energy recovery buffer box to determine whether the auxiliary heater in the energy storage tank should provide auxiliary heating. When the energy storage tank is used for auxiliary heating, it can accelerate the temperature rise of the heat energy inside the tank and prevent heat loss, thereby achieving energy saving. Simultaneously, when the system starts auxiliary heating in the energy storage tank, the system will also read the heat energy temperature in the energy storage tank in real time through the temperature detection device, and then perform logical judgment based on indoor temperature and user demand temperature to control the heating components in the energy storage tank to stop auxiliary heating.

[0083] The auxiliary heating start-up and shutdown strategies for energy storage tanks include: Energy storage tank auxiliary heating start-up strategy: The auxiliary heating time of the energy storage tank during a single start-up is >1 hour (this value can be adjusted through system settings and modifications), and the energy medium temperature of the energy storage tank is ≤ the user-set start-up heating temperature of the energy storage tank, and the indoor temperature is < the user-set indoor required temperature + error value. When all three conditions are met, the auxiliary heating of the energy storage tank is started.

[0084] When the auxiliary heating of the energy storage tank is damaged or the outdoor temperature is too low, resulting in the air source heat pump heating plus the auxiliary heating of the energy storage tank still not meeting the expected temperature and failing to reach the user's required temperature, the system will automatically check whether the indoor temperature is too low. That is, it also needs to determine whether the indoor temperature is less than the user's set indoor temperature plus the error value. When this judgment condition is met, the system will immediately start the auxiliary heating function of the energy storage tank.

[0085] Auxiliary heating shutdown strategy for energy storage tanks: If either of these two conditions is met, the system will shut down the auxiliary heater of the energy storage tank. The temperature of the energy medium inside the energy buffer tank is greater than or equal to the user-set stop heating temperature; or the indoor temperature is greater than or equal to the user-set indoor required temperature - 2 (this value can be set and modified through the system user software).

[0086] Furthermore, one embodiment of this application also provides a storage medium storing a computer program, which, when executed by a controller, implements the energy-saving steps for parking lot heating and cooling as described above. It should be understood that the various solutions in this embodiment have the corresponding technical effects in the above-described step embodiments, and will not be repeated here.

[0087] Furthermore, embodiments of this application also provide a computer program product, which is tangibly stored on a computer-readable medium and includes computer-readable instructions that, when executed, cause at least one controller to perform energy-saving steps for parking lot heating and cooling as described in the embodiments above.

[0088] It should be noted that the computer storage medium in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. Computer-readable media can be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access storage media (RAM), read-only storage media (ROM), erasable programmable read-only storage media (EPROM or flash memory), optical fibers, portable compact disk read-only storage media (CD-ROM), optical storage media, magnetic storage media, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program configured for use by or in connection with an instruction execution system, system, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, antenna, optical fiber, RF, etc., or any suitable combination thereof.

[0089] Furthermore, those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0090] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1One or more processes and / or boxes Figure 1 A system that specifies functions in one or more boxes.

[0091] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including an instruction set implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

Claims

1. An energy-saving conditioning and energy-storage control system for cooling and heating, characterized in that, The system includes: A regenerative buffer box is used to connect the regenerative pipeline of the heating and cooling equipment. The regenerative buffer box is equipped with a first auxiliary heater, an exhaust valve connected to the exhaust pipeline at the top, and a drain valve connected to the sewage pipeline at the bottom. The first auxiliary heater is controlled by a controller through a first temperature control switch and a relay, and is connected to the ground through a surge protector. The energy storage tank is connected to the energy recovery buffer box and the air source heat pump through a transmission network. The energy storage tank is equipped with a second auxiliary heater. The second auxiliary heater is controlled by a controller through a second temperature control switch and a relay, and is connected to the ground through a surge protector. An air source heat pump is connected via pipeline to an energy recovery buffer tank, an energy storage tank, and heating / cooling equipment. The inlet and outlet of the air source heat pump are connected to both ends of the energy storage tank via an electrically controlled valve and a first circulation pump. When storing energy in the energy storage tank (i.e., heating or cooling the energy medium inside), the air source heat pump inlet is connected to the lower outlet of the energy storage tank via the electrically controlled valve and the first circulation pump, while the air source heat pump outlet is connected to the upper inlet of the energy storage tank via an electrically controlled valve. When the energy storage tank supplies heating / cooling to the equipment, the upper interface of the energy storage tank becomes the outlet, connected to the air source heat pump via the electrically controlled valve. The outlet is connected to the inlet of the heating and cooling equipment. The lower interface of the energy storage tank becomes the inlet. It is connected to the outlet of the heating and cooling equipment via an electric control valve, the air source heat pump inlet, the second circulation pump, and the energy return buffer tank. Depending on the working state, the inlet and outlet of the energy storage tank will be switched. The inlet of the energy return buffer tank is connected to the energy return pipeline of the heating and cooling equipment, and the outlet is connected to the inlet of the air source heat pump. The controller controls the switching of the electric control valve and the start and stop of heating of the heating and cooling equipment, energy storage tank, and energy return buffer tank, as well as the start and stop of air source heat pump, first circulation pump, and second circulation pump. The controller is connected to the energy recovery buffer box, energy storage tank, air source heat pump, transmission network and heating and cooling equipment respectively.

2. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, characterized in that, The energy recovery buffer box is equipped with a first temperature detector and a first liquid level detector, and the first temperature detector and the first liquid level detector respectively transmit the detection signals to the controller. And / or, the energy storage tank is equipped with a second temperature detector and a second liquid level detector, which respectively transmit detection signals to the controller.

3. The energy saving conditioning and energy saving storage control system of claim 1, wherein, The transmission network includes an energy supply pipeline, an energy return pipeline, an electrically controlled valve, a first circulation pump, and a second circulation pump. The first circulation pump is used to heat or cool the energy medium output from the energy storage tank using an air source heat pump. The second circulation pump is used to heat or cool the energy medium in the heating and cooling equipment using an air source heat pump and / or the energy storage tank. The electrically controlled valve is used to control the connection or closure of the pipeline. Both the electrically controlled valve and the circulation pump are communicatively connected to the controller.

4. The energy-saving conditioning and energy-storage control system according to claim 3, wherein, The transmission network includes a first circulation branch, a second circulation branch, and a third circulation branch arranged in parallel and / or in series. The first circulation branch connects the air source heat pump group and the energy storage tank through an electric control valve and a first circulation pump when the air source heat pump stores energy in the energy storage tank. The second circulation branch connects the energy storage tank and the energy storage equipment through an electric control valve, a second circulation pump, and a return energy buffer box when the energy storage tank supplies cooling and heating. The third circulation branch connects the air source heat pump group and the cooling and heating equipment through an electric control valve, a second circulation pump, and a return energy buffer box when the air source heat pump supplies cooling and heating. The first circulation branch has multiple branch pipes, each of which is connected to a single energy storage tank via an independent electrically controlled valve; the second circulation branch has multiple branch pipes, each of which is connected to a single energy storage tank via an independent electrically controlled valve, and also has a regional distribution network, which connects to the fan coil units and underfloor heating coils of each zone of the parking lot via regional electrically controlled valve groups; the third circulation branch has a regional distribution network, which connects to the fan coil units and underfloor heating coils of each zone of the parking lot via regional electrically controlled valve groups.

5. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, wherein, Also includes: The photovoltaic power supply module is connected to the air source heat pump unit and auxiliary heater through a dual power switch; The outer wall of the energy recovery buffer box and the energy storage tank is equipped with a temperature control switch, which is connected in series in the power supply circuit of the auxiliary heater; The controller is configured to prioritize photovoltaic power supply and switch to mains power when the photovoltaic power supply module is insufficient.

6. The energy saving regulating cooling and heating and energy saving energy storage control system according to claim 1, wherein, The top of the exhaust pipe of the energy recovery buffer box is equipped with an automatic exhaust valve, which is connected to the air source heat pump and the transmission network circuit. It is used to allow the gas mixed in during energy recovery to float up and be discharged naturally, preventing water pump air resistance and main unit protection alarm; the exhaust valve is connected to the controller and can automatically discharge gas. And / or, the bottom of the energy recovery buffer tank is equipped with a drain valve, which is connected to an external sewage system through a drain pipe. The drain valve is opened periodically by the controller according to the system operation cycle to remove impurities deposited in the circulating water and prevent pipe blockage.

7. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, wherein, The first auxiliary heater is connected in series with a temperature control switch. The temperature control switch is directly connected in series in the power supply circuit of the first auxiliary heater. When the internal temperature of the energy recovery buffer box or energy storage tank exceeds the preset temperature threshold, the power supply is automatically disconnected to protect the first auxiliary heater. The detection signal of the temperature control switch is synchronously transmitted to the controller.

8. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, wherein, The system includes at least two air source heat pumps, which are independently connected to the transmission network. They can independently store energy for the energy storage tank or supply energy for heating and cooling equipment. They can also be switched on and off in conjunction with a controller to improve overall energy efficiency and system stability.

9. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, wherein, The controller is equipped with a heating / cooling rate monitoring module, which compares the temperature change curves of each area in real time. When the heating / cooling rate is lower than the set threshold, it dynamically adjusts the output power of the air source heat pump, increases the output of the auxiliary heater, or switches to the strategy of releasing cold / heat energy using the energy storage tank.

10. The energy saving regulating cooling and heating and energy saving storage control system according to claim 1, wherein, The system supports remote cloud control. The controller can connect to a cloud server and achieve system energy consumption analysis, temperature control strategy optimization, adaptive adjustment, and remote firmware upgrade through data upload.

Images