Control method of heat storage air conditioner, heat storage air conditioner, storage medium and electronic equipment

Abstract

The invention provides a control method of a heat storage air conditioner, the heat storage air conditioner, a storage medium and electronic equipment.The method comprises the steps that the demand state of an air conditioner tail end is detected, the working state of a heat storage unit is detected, the heat storage unit comprises an energy collecting end, a heat storage tank and a water storage pool, and the energy collecting end is connected with the heat storage tank; the heat storage tank is used for conducting constant-temperature heat exchange on the function section of the air conditioning unit, and a water outlet pipe of the energy collecting end is connected into the heat storage tank through a first valve and connected into the water storage pool through a second valve. And the states of the first valve and the second valve are controlled based on the demand state and the working state. The technical problem of high power consumption of the air conditioning unit in the related technology is solved, the heat exchange power consumption of the air conditioning unit is reduced, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat storage air conditioners, and in particular to a control method of a heat storage air conditioner, a heat storage air conditioner, a storage medium, and an electronic device. Background Art

[0002] In the relevant technologies, air conditioning in scenes such as semiconductor cleanrooms has the characteristics of high load, multiple parameters, and long operation time, which places high demands on HVAC design. The construction investment of high-level semiconductor factories is very expensive, and the energy consumption is huge, so energy saving and reducing the cost of semiconductor factory HVAC systems are urgent needs in HVAC design.

[0003] In the related technologies, the use of solar energy and air conditioning systems can achieve the purpose of energy saving. The intermittent nature of solar energy and its susceptibility to weather are one of the factors restricting its development. At the same time, the cooling needs of semiconductor plants are not always constant, and the loads of various functional segments require different water temperatures. Therefore, in order to improve the stability of system planning and operation under energy-load uncertainty, too large a capacity will lead to a significant increase in investment costs, while too small a capacity will not significantly improve the operating efficiency of the system. In order to ensure that the air-conditioning unit can perform heat exchange under different working conditions, the manufacturer sets a larger capacity for the air-conditioning unit, resulting in high power consumption.

[0004] With respect to the above-mentioned problems existing in the related technologies, no efficient and accurate solutions have been found yet. Summary of the invention

[0005] The present invention provides a control method for a heat storage air conditioner, a heat storage air conditioner, a storage medium, and an electronic device to solve the technical problems in the related art.

[0006] According to one embodiment of the present invention, a control method for a heat storage air conditioner is provided, comprising: detecting a demand state of an air conditioning terminal, and detecting a working state of a heat storage unit, wherein the heat storage unit comprises an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on a functional section of the air conditioning unit, a water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve, and is connected to the water storage tank through a second valve; the states of the first valve and the second valve are controlled based on the demand state and the working state.

[0007] Optionally, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an idle state and the working state is an energy storage state, detecting the real-time heat storage of the heat storage tank; judging whether the real-time heat storage reaches a maximum heat storage; if the real-time heat storage does not reach the maximum heat storage, controlling the first valve to be in an open state and controlling the second valve to be in a closed state; if the real-time heat storage has reached the maximum heat storage, controlling the first valve to be in a closed state and controlling the second valve to be in an open state.

[0008] Optionally, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an energy consumption state and the working state is an energy storage state, controlling the first valve and the second valve to be in an open state, and controlling the third valve to be in an open state, wherein the third valve is connected between the outlet of the heat storage tank and the internal heating port of the water reservoir, and the heat storage tank is also used to heat the water reservoir; detecting the outlet water temperature of the water reservoir; determining whether the outlet water temperature is lower than a target temperature; if the outlet water temperature is lower than the target temperature, controlling the fourth valve to be in an open state; if the outlet water temperature is not lower than the target temperature, controlling the fourth valve to be in a closed state, wherein the fourth valve is connected between the outlet of an external heat source and the external heating port of the water reservoir, and the external heat source is used to heat the water reservoir.

[0009] Optionally, controlling the first valve and the second valve to be in an open state includes: detecting the demand type of the air-conditioning terminal; determining a first functional segment of the air-conditioning unit associated with the demand type; searching for a first heat storage tank that matches the first functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection end and the corresponding heat storage tank; controlling the first valve and the second valve corresponding to the first heat storage tank to be in an open state.

[0010] Optionally, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an energy consumption state and the working state is a non-energy storage state, controlling the first valve and the second valve to be in a closed state; detecting the demand type of the air-conditioning terminal; determining a second functional segment associated with the demand type of the air-conditioning unit; searching for a second heat storage tank matching the second functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection end and the corresponding heat storage tank; and controlling the second heat storage tank to exchange heat with the second functional segment.

[0011] Optionally, after controlling the second heat storage tank to perform heat exchange on the second functional section, the method further includes: detecting the remaining energy storage of the second heat storage tank; judging whether the remaining energy storage is lower than a preset threshold; if the remaining energy storage is lower than the preset threshold, switching the heat source of the second functional section to the air-conditioning unit.

[0012] According to another embodiment of the present invention, a heat storage air conditioner is provided, comprising: an air conditioning unit, a heat storage unit, and a controller, the controller comprising: a detection module, used to detect the demand state of the air conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit comprises an energy collection end, a heat storage tank, and a water reservoir, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air conditioning unit, the water outlet pipe of the energy collection end is connected to the heat storage tank through a first valve, and is connected to the water reservoir through a second valve; a control module is used to control the states of the first valve and the second valve based on the demand state and the working state.

[0013] Optionally, there are multiple heat storage tanks, each of which corresponds to a phase change temperature, and there are multiple first valves, each of which is connected between the energy collection end and the corresponding heat storage tank.

[0014] Optionally, the control module includes: a first detection unit, used to detect the real-time heat storage of the heat storage tank if the demand state is an idle state and the working state is an energy storage state; a first judgment unit, used to judge whether the real-time heat storage has reached a maximum heat storage; a first control unit, used to control the first valve to be in an open state and the second valve to be in a closed state if the real-time heat storage has not reached the maximum heat storage; if the real-time heat storage has reached the maximum heat storage, control the first valve to be in a closed state and control the second valve to be in an open state.

[0015] Optionally, the control module includes: a second control unit, used to control the first valve and the second valve to be in an open state, and control the third valve to be in an open state if the demand state is an energy consumption state and the working state is an energy storage state, wherein the third valve is connected between the outlet of the heat storage tank and the internal heating port of the water reservoir, and the heat storage tank is also used to heat the water reservoir; a second detection unit, used to detect the outlet water temperature of the water reservoir; a second judgment unit, used to judge whether the outlet water temperature is lower than a target temperature; a third control unit, used to control the fourth valve to be in an open state if the outlet water temperature is lower than a target temperature; and control the fourth valve to be in a closed state if the outlet water temperature is not lower than a target temperature, wherein the fourth valve is connected between the outlet of an external heat source and the external heating port of the water reservoir, and the external heat source is used to heat the water reservoir.

[0016] Optionally, the second control unit includes: a detection subunit, used to detect the demand type of the air-conditioning terminal; a determination subunit, used to determine the first functional segment of the air-conditioning unit associated with the demand type; a search subunit, used to search for a first heat storage tank matching the first functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection end and the corresponding heat storage tank; a control subunit, used to control the first valve and the second valve corresponding to the first heat storage tank to be in an open state.

[0017] Optionally, the control module includes: a fourth control unit, used to control the first valve and the second valve to be in a closed state if the demand state is an energy consumption state and the working state is a non-energy storage state; a third detection unit, used to detect the demand type of the air-conditioning terminal; a determination unit, used to determine the second functional segment associated with the air-conditioning unit and the demand type; a search unit, used to search for a second heat storage tank matching the second functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, and each first valve is connected between the energy collection end and the corresponding heat storage tank; a fifth control unit, used to control the second heat storage tank to exchange heat with the second functional segment.

[0018] Optionally, the control module further includes: a fourth detection unit, used to detect the remaining stored energy of the second heat storage tank after the fifth control unit controls the second heat storage tank to exchange heat with the second functional section; a third judgment unit, used to judge whether the remaining stored energy is lower than a preset threshold; and a switching unit, used to switch the heat source of the second functional section to the air-conditioning unit if the remaining stored energy is lower than a preset threshold.

[0019] According to another aspect of an embodiment of the present application, a storage medium is further provided, which includes a stored program, and the above steps are executed when the program is run.

[0020] According to another aspect of an embodiment of the present application, there is also provided an electronic device, including a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; wherein: the memory is used to store computer programs; and the processor is used to execute the steps in the above method by running the program stored in the memory.

[0021] According to yet another embodiment of the present invention, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above-mentioned device embodiments when running.

[0022] Through the embodiments of the present invention, the demand state of the air-conditioning terminal and the working state of the heat storage unit are detected, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional segment of the air-conditioning unit, and the outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve, and is connected to the water storage tank through a second valve; the states of the first valve and the second valve are controlled based on the demand state and the working state, and the states of the first valve and the second valve are controlled by the demand state of the air-conditioning terminal and the working state of the heat storage unit, thereby controlling the heat storage unit to store energy and using the stored energy to perform heat exchange on the functional segment of the air-conditioning unit, thereby realizing a heat storage air-conditioning combining energy storage and heat exchange, solving the technical problem of high power consumption of the air-conditioning unit in the related technology, reducing the heat exchange power consumption of the air-conditioning unit, and improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a hardware structure block diagram of an air conditioner according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a control method of a heat storage air conditioner according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a heat storage air conditioner according to an embodiment of the present invention;

[0027] Figure 4 is a control logic diagram of an air conditioning system in an embodiment of the present invention;

[0028] Figure 5 It is a structural block diagram of a heat storage air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] Example 1

[0032] The method embodiment provided in the first embodiment of the present application can be executed in an air conditioner, a refrigeration controller or a similar equipment management device. Taking the operation on the air conditioner as an example, Figure 1 FIG. 1 is a hardware structure diagram of an air conditioner according to an embodiment of the present invention. Figure 1 As shown, the air conditioner may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the air conditioner may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above air conditioner. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0033] The memory 104 can be used to store air conditioning programs, for example, software programs and modules of application software, such as an air conditioning program corresponding to a control method of a heat storage air conditioner in an embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the air conditioning program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the air conditioner via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0034] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the air conditioner. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0035] In this embodiment, a control method for a heat storage air conditioner is provided. Figure 2 is a flow chart of a control method of a heat storage air conditioner according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0036] Step S202, detecting the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve;

[0037] The heat storage air conditioner of this embodiment can be deployed and installed in large places such as semiconductor clean factories, hospitals, shopping malls, etc., and can also be widely used in other industrial fields that require precise temperature control, such as pharmaceuticals, food processing, etc.

[0038] The heat storage tank is equipped with phase change materials. The melting point of the phase change materials in each heat storage tank is different, so as to realize step-by-step energy storage. For example, the temperatures of the three heat storage tanks are 20°, 40°, and 60° respectively. The phase change materials absorb and release heat through morphological phase change, and can perform constant temperature heat exchange for the low-temperature heat function section, medium-temperature heat function section, and high-temperature heat function section of the air-conditioning unit. The air-conditioning unit includes multiple functional sections, each of which corresponds to a set of functional parts with the same heat exchange temperature, such as evaporator, condenser, water-cooled fan, preheating plate, etc. The composition of the functional sections in different scenarios can be different.

[0039] Optionally, the demand state of the air-conditioning terminal includes an idle state and an energy use state (a power-on state, i.e., a state in which hot water is required), and the working state of the heat storage unit includes an energy storage state and a non-energy storage state.

[0040] Step S204, controlling the states of the first valve and the second valve based on the demand state and the working state;

[0041] Through the above steps, the demand state of the air-conditioning terminal and the working state of the heat storage unit are detected, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional segment of the air-conditioning unit, and the outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve, and is connected to the water storage tank through a second valve; the states of the first valve and the second valve are controlled based on the demand state and the working state, and the states of the first valve and the second valve are controlled by the demand state of the air-conditioning terminal and the working state of the heat storage unit, thereby controlling the heat storage unit to store energy and using the stored energy to perform heat exchange on the functional segment of the air-conditioning unit, thereby realizing a heat storage air-conditioning combining energy storage and heat exchange, solving the technical problem of high power consumption of the air-conditioning unit in the related technology, reducing the heat exchange power consumption of the air-conditioning unit, and improving energy utilization efficiency.

[0042] Figure 3 : is a schematic diagram of a heat storage air conditioner in an embodiment of the present invention, including V1~V7, P1~P3, P1~P3 are three heat storage tanks with gradient phase change temperature, the solar water storage tank is a water reservoir, the solar panel is an energy collection end, V1, V3, and V7 are three first valves, which are respectively connected to P1~P3 through switch adjustment, V6 is a second valve, which is connected to the solar water storage tank, the medium-temperature water main, the hot water main, and the user side are three functional sections of the air-conditioning unit, and P1~P3 can be used to perform constant temperature heat exchange on the functional sections.

[0043] In one implementation of the present embodiment, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an idle state and the working state is an energy storage state, detecting the real-time heat storage amount of the heat storage tank; judging whether the real-time heat storage amount reaches a maximum heat storage amount; if the real-time heat storage amount does not reach the maximum heat storage amount, controlling the first valve to be in an open state and controlling the second valve to be in a closed state; if the real-time heat storage amount has reached the maximum heat storage amount, controlling the first valve to be in a closed state and controlling the second valve to be in an open state.

[0044] In the scenario of heat storage only, there is no demand for air conditioning terminals. Figure 3 Taking the air conditioning structure shown in the figure as an example, close the second valve V6, open the first valves V1, V3, and V7, and the heat storage tanks P1, P2, and P3 store heat to 20°C, 40°C, and 60°C respectively to reach the maximum heat storage capacity. When it is judged that heat cannot be stored anymore, open V6, and close V1, V3, and V7. At this time, heat is directly stored in the solar thermal storage tank for domestic hot water needs. In this mode, the system makes full use of solar energy to provide reserves for subsequent energy needs. The system combines phase change materials with different melting points and designs two heat storage modes to adapt to different sunshine conditions and ambient temperatures, ensuring the flexibility and efficiency of the system. A direct heat storage mode, such as Figure 3 , heat is directly provided to the solar water tank through the collector for heating, but this mode has only one temperature, and this mode is directly used in areas with sufficient solar radiation intensity and stable ambient temperature. Another heat storage mode is to use the inherent characteristics of phase change materials for graded heat storage, using three different heat storage materials, respectively adapted to high temperature heat 60°: domestic hot water; medium temperature heat 40°: MAU preheating section, reheating section; low temperature heat 20°: water treatment process preheating section, warm water humidification section. This mode is used in areas with short sunshine time and poor environmental conditions, and indirect heat storage is used.

[0045] Optionally, there are multiple heat storage tanks, and a heat storage tank with a high phase change temperature can convert heat to a heat storage tank with a low phase change temperature. Detecting the real-time heat storage amount of the heat storage tank includes detecting the real-time heat storage amounts of the multiple heat storage tanks according to priority, wherein the priority of each heat storage tank is positively correlated with the heat storage temperature of the corresponding phase change material. Under the condition that the capacity of the heat storage tanks is the same, the higher the heat storage temperature, the higher the maximum heat storage amount. For example, if the heat storage temperatures of heat storage tanks 1, 2, and 3 are 60°, 40°, and 20°, respectively, heat storage tank 1 has the highest priority, and priority is given to ensuring that the heat storage tank with the highest maximum heat storage amount reaches the maximum heat storage amount. Since the higher the heat storage temperature of the phase change material, the smaller the loss during energy storage, the energy loss at the energy collection end can be reduced, thereby improving the energy storage efficiency.

[0046] By adopting the solution of this implementation mode, in the energy storage mode, the energy collected by the energy collection end is fully utilized to store energy in the heat storage tank, providing reserves for subsequent energy needs, improving energy utilization and reducing energy waste.

[0047] In one implementation of the present embodiment, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an energy consumption state and the working state is an energy storage state, controlling the first valve and the second valve to be in an open state, and controlling the third valve to be in an open state, wherein the third valve is connected between the outlet of the heat storage tank and the internal heating port of the water reservoir, and the heat storage tank is also used to heat the water reservoir; detecting the outlet water temperature of the water reservoir; determining whether the outlet water temperature is lower than a target temperature; if the outlet water temperature is lower than the target temperature, controlling the fourth valve to be in an open state; if the outlet water temperature is not lower than the target temperature, controlling the fourth valve to be in a closed state, wherein the fourth valve is connected between the outlet of an external heat source and the external heating port of the water reservoir, and the external heat source is used to heat the water reservoir.

[0048] In the scenario of storing and using at the same time, by detecting the outdoor environment and judging whether the storage conditions are met, V1, V3, V7, and V6 are turned on. First, the temperature of P1 storage at 20°C is used for pure water preheating, and then the temperature of P2 storage at 40°C is used for the preheating and reheating sections of MAU, and the temperature of P3 storage at 60°C is used for the user side (domestic water, such as bathing, heating, floor heating, etc.). After P3 is fully charged with heat energy, V4 is turned on to supply the user side. When the outlet water temperature is detected to be lower than 60°C, V4 is turned off and V2 is turned on. At this time, the solar water storage tank provides heat. The heat source provided by the solar water storage tank includes municipal water supply from external heat sources and P3 heat storage. By detecting the temperature of the solar water storage tank, when the temperature is lower than 60°C, V5 is turned on, and the temperature is controlled by municipal water supply and by controlling the opening of V5. When it is detected to be higher than 60°C, V5 is turned off. In this mode, the system can respond to energy needs in real time while maintaining efficient use of energy.

[0049] By adopting the solution of this implementation, in the mode of storing and using, it is possible to respond to energy demand in real time, give priority to the use of energy stored in the heat storage tank, and achieve a balance between the heat storage tank and the external heat source, maintain efficient use of energy, and maintain stable operation of the air-conditioning unit.

[0050] In one example, controlling the first valve and the second valve to be in an open state includes: detecting the demand type of the air-conditioning terminal; determining a first functional segment of the air-conditioning unit associated with the demand type; searching for a first heat storage tank that matches the first functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection terminal and the corresponding heat storage tank; controlling the first valve and the second valve corresponding to the first heat storage tank to be in an open state.

[0051] A variety of phase change materials are used for step-by-step heat storage, and multiple heat storage tanks are used to store heat to different temperatures. When the air-conditioning unit is running, different functional sections can be exchanged heat separately, which improves the flexibility of heat exchange in the heat storage tank and can be applied to multiple operating conditions of the air-conditioning unit.

[0052] Optionally, the first valve corresponding to the non-first heat storage tank can also be controlled to be in a closed state. For example, the number of heat storage tanks is 3, and the first functional segment of the air-conditioning unit associated with the demand type is the first heat storage tank, such as heat storage tank P1. Then, V7 can be controlled to be opened, and V1 and V3 can be controlled to be closed at the same time, thereby ensuring that the energy storage of the first heat storage tank is sufficient, especially when the heat storage capacity of the heat storage unit is poor, the energy of the air-conditioning unit can be saved.

[0053] By utilizing the inherent characteristics of phase change materials for graded heat storage, P1, P2, and P3 can be used to correspond to heat storage tanks filled with three different heat storage materials, which are respectively suitable for high-temperature heat of 60°: domestic hot water; medium-temperature heat of 40°: MAU preheating section and reheating section; low-temperature heat of 20°: water treatment process preheating section and warm water humidification section. This model is used in areas with short sunshine hours and poor environmental conditions, and indirect heat storage is adopted.

[0054] In one implementation of the present embodiment, controlling the states of the first valve and the second valve based on the demand state and the working state includes: if the demand state is an energy consumption state and the working state is a non-energy storage state, controlling the first valve and the second valve to be in a closed state; detecting the demand type of the air-conditioning terminal; determining a second functional segment of the air-conditioning unit associated with the demand type; searching for a second heat storage tank that matches the second functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection terminal and the corresponding heat storage tank; and controlling the second heat storage tank to exchange heat with the second functional segment.

[0055] In the mode of only using but not storing, the energy stored in the heat storage tank is directly used to exchange heat for the functional segment at the end of the air conditioner. There is no need to activate the refrigeration host or heating host inside the air-conditioning unit to exchange heat for the functional segment, thereby reducing the internal power consumption of the air-conditioning unit.

[0056] Optionally, after controlling the second heat storage tank to perform heat exchange on the second functional section, it also includes: detecting the remaining energy storage of the second heat storage tank; judging whether the remaining energy storage is lower than a preset threshold; if the remaining energy storage is lower than the preset threshold, switching the heat source of the second functional section to the air-conditioning unit.

[0057] When the energy stored in the heat storage tank is used up, the heat source is switched from the heat storage tank to the air-conditioning unit to ensure a continuous and stable energy supply. This can cope with the uncertainty of energy supply, ensure the temperature control requirements of the air-conditioning unit, and ensure the operating stability of the air-conditioning unit.

[0058] In the scenario of using only energy, by detecting the outdoor environment, it is judged that it is nighttime or the light is insufficient, and the energy storage unit cannot store energy, and V1, V3, V6, and V7 are turned off. According to the demand type of the air-conditioning terminal, the second heat storage tank matching the second functional segment corresponding to the demand type is controlled to perform heat exchange, such as opening V2 and V5, and the municipal heating is supplied to the user side. If the second heat storage tank includes P2, the energy storage of P2 is consumed. When it is detected that the energy storage is exhausted, the heat source is switched, and the 40°C originally supplied by P2 is switched to boiler hot water. If the second heat storage tank includes P1, the energy storage of P1 is consumed. When it is detected that the energy storage is exhausted, the 20°C originally supplied by P1 is switched to the medium-temperature refrigeration host. When the energy storage is exhausted, the heat source is provided by the boiler hot water and the medium-temperature refrigeration host respectively to ensure a continuous and stable energy supply. In this mode, the system can cope with the uncertainty of energy supply and ensure the temperature control requirements of the air-conditioning system.

[0059] The solution of this embodiment realizes a multi-energy cascade phase change energy storage system, which flexibly distributes solar heat sources to different areas and stably supplies energy to the functional sections required by the air-conditioning unit. Based on the temperature characteristics of different phase change materials, high-temperature heat 60°: domestic hot water; medium-temperature heat 40°: MAU preheating section, reheating section; low-temperature heat 20°: water treatment process preheating section, warm water humidification section, and reasonable phase change temperatures are designed for different needs. The control system of the device achieves energy mode switching and energy cascade control to stably provide different heat sources.

[0060] Figure 4This is the control logic diagram of the air conditioning system in the embodiment of the present invention. In order to improve the stability of system planning and operation under energy-load uncertainty, a multi-energy cascade phase change energy storage system and control method are designed, which is particularly suitable for the precise temperature control environment of semiconductor plants. By flexibly distributing and storing solar energy in different areas, the energy is distributed and utilized to different terminal demands according to the cascade settings, and the utilization rate of solar energy is reasonably optimized. It includes: detecting the outdoor environment and terminal demand, and controlling the valve according to different scene modes (mode 1, only heat storage, no demand at the terminal; mode 2, storage and use, sufficient sunshine; mode 3, can only be used, night or insufficient light). Mode 1: Close V6, open V1, V3, V7, P1, P2, P3 store heat to 20℃, 40℃, 60℃ respectively, and judge until it is impossible to store heat, open V6, close V1, V3, V7, and directly store heat to the solar thermal storage tank for domestic hot water demand; Mode 2: Open V1, V3, V7, V6, first P1 stores heat at 20℃ and uses Mode 3: Open V2 and V5, and the municipal heating will be used to supply the user side, while consuming the energy storage of P2. When the energy storage is exhausted, the 40℃ originally supplied by P2 will be supplied by the boiler hot water, and the energy storage of P1 will be consumed. When the energy storage is exhausted, the 20℃ originally supplied by P1 will be supplied by the medium-temperature refrigeration host. When the energy storage is exhausted, the boiler hot water and the medium-temperature refrigeration host will provide the heat source respectively.

[0061] Through the above control strategy, the air conditioning system with multi-energy cascade phase change energy storage can effectively cope with energy-load uncertainty, improve energy utilization efficiency, meet the complex temperature requirements of scenes such as semiconductor plants, and reduce dependence on traditional energy, promote green and sustainable development, and provide an innovative energy management solution for the industrial field. This system is not only suitable for the semiconductor industry, but can also be widely used in other industrial fields that require precise temperature control, such as pharmaceuticals, food processing, etc., and has broad application prospects and market potential.

[0062] The patent of this invention designs a multi-energy cascade phase change energy storage system and control method to solve the problem of serious energy waste in the HVAC system of clean workshops, the intermittent nature of solar energy and its instability due to weather, and the low utilization rate of light energy. It improves the stability of system planning and operation under energy-load uncertainty, can adapt to the complex temperature requirements of comprehensive energy, and improve the density and heat exchange efficiency of energy storage units.

[0063] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0064] Example 2

[0065] In this embodiment, a heat storage air conditioner is also provided, which is used to implement the above embodiments and preferred implementations, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and hardware for the reservation function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, can also be conceived.

[0066] Figure 5 is a structural block diagram of a heat storage air conditioner according to an embodiment of the present invention. Figure 5 As shown, it includes: an air conditioning unit 50, a heat storage unit 52, and a controller 54, wherein the controller 54 includes:

[0067] The detection module 540 is used to detect the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve;

[0068] The control module 542 is used to control the states of the first valve and the second valve based on the demand state and the working state.

[0069] Optionally, there are multiple heat storage tanks, each of which corresponds to a phase change temperature, and there are multiple first valves, each of which is connected between the energy collection end and the corresponding heat storage tank.

[0070] Optionally, the control module includes: a first detection unit, used to detect the real-time heat storage of the heat storage tank if the demand state is an idle state and the working state is an energy storage state; a first judgment unit, used to judge whether the real-time heat storage has reached a maximum heat storage; a first control unit, used to control the first valve to be in an open state and the second valve to be in a closed state if the real-time heat storage has not reached the maximum heat storage; if the real-time heat storage has reached the maximum heat storage, control the first valve to be in a closed state and control the second valve to be in an open state.

[0071] Optionally, the control module includes: a second control unit, used to control the first valve and the second valve to be in an open state, and control the third valve to be in an open state if the demand state is an energy consumption state and the working state is an energy storage state, wherein the third valve is connected between the outlet of the heat storage tank and the internal heating port of the water reservoir, and the heat storage tank is also used to heat the water reservoir; a second detection unit, used to detect the outlet water temperature of the water reservoir; a second judgment unit, used to judge whether the outlet water temperature is lower than a target temperature; a third control unit, used to control the fourth valve to be in an open state if the outlet water temperature is lower than a target temperature; and control the fourth valve to be in a closed state if the outlet water temperature is not lower than a target temperature, wherein the fourth valve is connected between the outlet of an external heat source and the external heating port of the water reservoir, and the external heat source is used to heat the water reservoir.

[0072] Optionally, the second control unit includes: a detection subunit, used to detect the demand type of the air-conditioning terminal; a determination subunit, used to determine the first functional segment of the air-conditioning unit associated with the demand type; a search subunit, used to search for a first heat storage tank matching the first functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, each first valve is connected between the energy collection end and the corresponding heat storage tank; a control subunit, used to control the first valve and the second valve corresponding to the first heat storage tank to be in an open state.

[0073] Optionally, the control module includes: a fourth control unit, used to control the first valve and the second valve to be in a closed state if the demand state is an energy consumption state and the working state is a non-energy storage state; a third detection unit, used to detect the demand type of the air-conditioning terminal; a determination unit, used to determine the second functional segment associated with the air-conditioning unit and the demand type; a search unit, used to search for a second heat storage tank matching the second functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, and each first valve is connected between the energy collection end and the corresponding heat storage tank; a fifth control unit, used to control the second heat storage tank to exchange heat with the second functional segment.

[0074] Optionally, the control module further includes: a fourth detection unit, used to detect the remaining stored energy of the second heat storage tank after the fifth control unit controls the second heat storage tank to exchange heat with the second functional section; a third judgment unit, used to judge whether the remaining stored energy is lower than a preset threshold; and a switching unit, used to switch the heat source of the second functional section to the air-conditioning unit if the remaining stored energy is lower than a preset threshold.

[0075] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0076] Example 3

[0077] An embodiment of the present invention further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0078] Optionally, in this embodiment, the above storage medium may be configured to store a computer program for executing:

[0079] S1, detecting the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve;

[0080] S2, controlling the states of the first valve and the second valve based on the demand state and the working state.

[0081] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0082] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0083] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0084] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0085] S1, detecting the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve;

[0086] S2, controlling the states of the first valve and the second valve based on the demand state and the working state.

[0087] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0088] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0089] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0090] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0091] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0092] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0093] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a controller or a network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., various media that can store program codes.

[0094] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A control method for a heat storage air conditioner, characterized in that: include: Detecting the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve; The states of the first valve and the second valve are controlled based on the demand state and the operating state.

2. The method according to claim 1, characterized in that Controlling the states of the first valve and the second valve based on the demand state and the working state includes: If the demand state is an idle state and the working state is an energy storage state, detecting the real-time heat storage amount of the heat storage tank; Determine whether the real-time heat storage has reached the maximum heat storage; If the real-time heat storage has not reached the maximum heat storage, the first valve is controlled to be in an open state and the second valve is controlled to be in a closed state; if the real-time heat storage has reached the maximum heat storage, the first valve is controlled to be in a closed state and the second valve is controlled to be in an open state.

3. The method according to claim 1, characterized in that Controlling the states of the first valve and the second valve based on the demand state and the working state includes: If the demand state is an energy consumption state and the working state is an energy storage state, the first valve and the second valve are controlled to be in an open state, and the third valve is controlled to be in an open state, wherein the third valve is connected between the outlet of the heat storage tank and the internal heating port of the water storage tank, and the heat storage tank is also used to heat the water storage tank; Detecting the outlet water temperature of the water reservoir; Determining whether the outlet water temperature is lower than a target temperature; If the water outlet temperature is lower than the target temperature, the fourth valve is controlled to be in an open state; if the water outlet temperature is not lower than the target temperature, the fourth valve is controlled to be in a closed state, wherein the fourth valve is connected between the outlet of the external heat source and the external heating port of the water reservoir, and the external heat source is used to heat the water reservoir.

4. The method according to claim 3, characterized in that Controlling the first valve and the second valve to be in an open state includes: Detecting the demand type of the air-conditioning terminal; Determining a first functional segment of the air conditioning unit associated with the demand type; Searching for a first heat storage tank matching the first functional segment, wherein there are multiple heat storage tanks, each of which corresponds to a phase change temperature, and there are multiple first valves, each of which is connected between the energy collection end and the corresponding heat storage tank; The first valve and the second valve corresponding to the first heat storage tank are controlled to be in an open state.

5. The method according to claim 1, characterized in that Controlling the states of the first valve and the second valve based on the demand state and the working state includes: If the demand state is an energy-using state and the working state is a non-energy-storage state, the first valve and the second valve are controlled to be in a closed state; Detecting the demand type of the air-conditioning terminal; Determining a second functional segment of the air conditioning unit associated with the demand type; Searching for a second heat storage tank matching the second functional segment, wherein the number of the heat storage tanks is multiple, each heat storage tank corresponds to a phase change temperature, the number of the first valves is multiple, and each first valve is connected between the energy collection end and the corresponding heat storage tank; The second heat storage tank is controlled to perform heat exchange on the second functional section.

6. The method according to claim 5, characterized in that After controlling the second heat storage tank to perform heat exchange on the second functional section, the method further includes: detecting the remaining stored energy of the second heat storage tank; Determining whether the remaining stored energy is lower than a preset threshold; If the remaining stored energy is lower than a preset threshold, the heat source of the second functional section is switched to the air conditioning unit.

7. A heat storage air conditioner, characterized in that: include: An air conditioning unit, a heat storage unit, and a controller, wherein the controller comprises: A detection module, used to detect the demand state of the air-conditioning terminal and the working state of the heat storage unit, wherein the heat storage unit includes an energy collection terminal, a heat storage tank, and a water storage tank, the heat storage tank is used to perform constant temperature heat exchange on the functional section of the air-conditioning unit, and the water outlet pipe of the energy collection terminal is connected to the heat storage tank through a first valve and connected to the water storage tank through a second valve; A control module is used to control the states of the first valve and the second valve based on the demand state and the working state.

8. The heat storage air conditioner according to claim 7, characterized in that: There are multiple heat storage tanks, each of which corresponds to a phase change temperature. There are multiple first valves, each of which is connected between the energy collection end and the corresponding heat storage tank.

9. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the steps of the control method of the heat storage air conditioner in any one of claims 1 to 6 when running.

10. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein: The processor, the communication interface, and the memory communicate with each other via a communication bus; wherein: Memory, used to store computer programs; A processor, configured to execute the steps of the control method of the heat storage air conditioner according to any one of claims 1 to 6 by running a program stored in a memory.

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