Air conditioning system

Abstract

The utility model relates to the technical field of air conditioning, and discloses an air conditioning system. The heat exchange loop comprises a compressor, a condenser, a throttling device and an evaporator which are communicated through a heat exchange pipeline; a fluorine path of the first water-fluorine heat exchanger is communicated between the outlet of the condenser and the throttling device, and an inlet of a water path of the first water-fluorine heat exchanger is suitable for being communicated with an external water source; an inlet of the buffer water tank is communicated with an outlet of the water path of the first water-fluorine heat exchanger, and an outlet of the buffer water tank is suitable for being communicated with a water using device. Through the arrangement of the first water-fluorine heat exchanger and the buffer water tank, the heat dissipation stability of the air conditioning system is achieved, the water pressure and temperature fluctuation of a water path of the air conditioning system is buffered, the water supply requirement is balanced, and the safety of a heat exchange loop is guaranteed.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example, to an air conditioning system. Background Technology

[0002] Currently, with the improvement of people's living standards, everyone has higher requirements for living comfort, and air conditioning systems have entered thousands of households. However, air conditioning systems consume a lot of energy. Especially in summer, when the weather is very hot, daytime temperatures in many areas can reach above 40℃. Outdoor air conditioners need to dissipate heat, causing the ambient temperature around them to reach above 50℃. This poses a great challenge to air conditioners, and the higher the ambient temperature, the higher the energy consumption. Therefore, reducing the energy consumption of air conditioning systems is an urgent problem to be solved. Water's specific heat capacity is more than 3000 times that of air, making it an excellent energy storage medium.

[0003] In related technologies, air conditioning systems use water-fluorine heat exchangers to dissipate heat from the air conditioning system, improve condensation efficiency, and since water resources are abundant, the water after heat exchange can be reused, which can reduce the energy consumption of the air conditioning system.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, when water is used for condensation and heat dissipation in air conditioning systems, the thermal efficiency of the air conditioning system is prone to instability due to fluctuations in the water source, and water pressure surges can also affect the safety of the heat exchange circuit.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an air conditioning system that buffers water pressure and temperature fluctuations in the air conditioning system's water circuit, balances water supply demand, and ensures the safety of the heat exchange circuit.

[0009] This disclosure provides an air conditioning system, comprising: a heat exchange circuit including a compressor, a condenser, a throttling device, and an evaporator connected by a heat exchange pipeline; a first water-fluoride heat exchanger, the fluoride circuit of which is connected between the outlet of the condenser and the throttling device, and the inlet of the water circuit of which is adapted to be connected to an external water source; and a buffer tank, the inlet of which is connected to the outlet of the water circuit of the first water-fluoride heat exchanger, and the outlet of which is adapted to be connected to a water-using device.

[0010] Optionally, the air conditioning system further includes: a first pipeline connecting the inlet of the buffer water tank and the outlet of the water path of the first water-fluoride heat exchanger; and a water flow damper located in the first pipeline for regulating the flow rate of the water in the water path of the first water-fluoride heat exchanger.

[0011] Optionally, the air conditioning system further includes: a second pipeline adapted to connect between the outlet of the buffer tank and the water-using device; and a flow switch located in the second pipeline for controlling the flow rate of water at the outlet of the buffer tank.

[0012] Optionally, the air conditioning system further includes: a controller electrically connected to both the water flow damper and the flow switch, the controller being configured to control the water flow damper to open to a first opening degree when the flow switch is closed; and to control the water flow damper to open to a second opening degree when the flow switch is open, the first opening degree being less than the second opening degree.

[0013] Optionally, the air conditioning system further includes: a first detection device, located in the buffer water tank, for detecting the water level in the buffer water tank; wherein the first detection device is electrically connected to the controller, and the controller is configured to fully open the water flow buffer when the water level in the buffer water tank is lower than or equal to a first preset water level.

[0014] Optionally, the condenser includes a second water-fluoride heat exchanger, and the air conditioning system also includes a water supply tank, which has an outlet and a return outlet. The outlet of the water supply tank is connected to the inlet of the water circuit of the second water-fluoride heat exchanger, and the return outlet of the water supply tank is connected to the outlet of the water circuit of the second water-fluoride heat exchanger.

[0015] Optionally, the water supply tank also has a water inlet and a drain outlet. The water inlet is used to replenish water into the water supply tank, and the drain outlet is used to discharge water from the water supply tank. The air conditioning system also includes: a water supply pipe connected to the water inlet and equipped with a water supply valve, which is used to control the opening and closing of the water inlet; and a drain pipe connected to the drain outlet and equipped with a drain valve, which is used to control the opening and closing of the drain outlet.

[0016] Optionally, the air conditioning system further includes: a second detection device, located in the water supply tank, for detecting the water temperature in the water supply tank; and a third detection device, located in the water supply tank, for detecting the water level in the water supply tank; wherein the controller is electrically connected to the water inlet valve, the water outlet valve, the second detection device, and the third detection device, and the controller is configured to control the water inlet valve to open when the water level in the water supply tank is lower than or equal to a second preset water level; and to control the water outlet valve to open when the water temperature in the water supply tank is greater than or equal to a preset temperature.

[0017] Optionally, the drainage pipeline includes: a first drainage pipe, adapted to connect the drain outlet to the outside; and a second drainage pipe, connecting the drain outlet to a water-using device; wherein, a drain valve is connected between the drain outlet, the first drainage pipe, and the second drainage pipe, and the drain valve is used to switch the connection between the drain outlet and the first drainage pipe or between the drain outlet and the second drainage pipe.

[0018] Optionally, the air conditioning system further includes: a water supply pipeline adapted to connect an external water source and a water-using device, the water supply pipeline including a first water supply pipeline and a second water supply pipeline, the water circuit of the water-fluoride heat exchanger and the buffer water tank being connected in series in the first water supply pipeline; wherein, the first water supply pipeline and the second water supply pipeline are connected in parallel.

[0019] The air conditioning system provided in this embodiment can achieve the following technical effects:

[0020] In this embodiment of the air conditioning system, a first water-refrigerant heat exchanger is connected in series at the outlet of the condenser. The refrigerant, after condensation and heat dissipation in the condenser, flows into the refrigerant circuit of the first water-refrigerant heat exchanger and exchanges heat with the water circuit within the exchanger. This further subcools the refrigerant, lowering its temperature. This not only reduces the energy consumption of the air conditioning system but also improves its cooling capacity. Furthermore, it ensures the cooling capacity of the air conditioning system even in high-temperature environments, avoiding the drawback of reduced cooling capacity under high-temperature conditions.

[0021] The outlet of the first water-fluoride heat exchanger is connected to a buffer tank. This buffer tank isolates the external water source from the heat exchange circuit, effectively absorbing external water pressure fluctuations, such as sudden changes in tap water pressure. This prevents pressure from being transmitted to core components like the compressor or throttling devices, reducing the failure rate. Through its volumetric buffering effect, the buffer tank smooths out instantaneous fluctuations in the flow or temperature of the external water source, ensuring stable water flow in the first water-fluoride heat exchanger and maintaining stable condensation heat recovery efficiency. The buffer tank can temporarily store excess heat, which can be quickly released when external water demand surges, achieving peak shaving and valley filling of hot water supply and solving the energy waste or hot water shortage problems caused by instantaneous imbalances in heat supply and demand in traditional systems.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a schematic diagram of the structure of an air conditioning system provided in an embodiment of this disclosure;

[0025] Figure 2 This is a partial structural schematic diagram of an air conditioning system provided in an embodiment of this disclosure;

[0026] Figure 3 This is a partial structural schematic diagram of another air conditioning system provided in an embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of another air conditioning system provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of another air conditioning system provided in an embodiment of this disclosure.

[0029] Figure label:

[0030] 10. Compressor; 20. Condenser; 30. Throttling device; 40. Evaporator; 50. First water-fluoride heat exchanger; 501. Buffer tank; 502. Water flow damper; 503. Flow switch; 504. First water supply line; 505. Second water supply line; 506. First line; 507. Second line; 508. Third line; 60. Second water-fluoride heat exchanger; 601. Water supply tank; 602. Makeup line; 603. Makeup valve; 604. Drain line; 605. Drain valve; 606. First drain pipe; 607. Second drain pipe; 608. Fourth line; 609. Fifth line. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0034] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Unless otherwise stated, the term "multiple" means two or more.

[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0038] Combination Figures 1 to 5As shown in the figure, this disclosure provides an air conditioning system, which includes a heat exchange circuit, a first water-fluoride heat exchanger 50, and a buffer water tank 501. The heat exchange circuit includes a compressor 10, a condenser 20, a throttling device 30, and an evaporator 40 connected by heat exchange pipes. The first water-fluoride heat exchanger 50 is connected between the outlet of the condenser 20 and the throttling device 30, and the inlet of the water passage of the first water-fluoride heat exchanger 50 is adapted to be connected to an external water source. The buffer water tank 501 has its inlet connected to the outlet of the water passage of the first water-fluoride heat exchanger 50, and its outlet is adapted to be connected to a water-using device.

[0039] In this embodiment, the air conditioning system includes a heat exchange circuit in which refrigerant flows. The refrigerant flows through the compressor 10, condenser 20, throttling device 30, and evaporator 40 via heat exchange pipes, achieving cooling and heating through compression, condensation, and evaporation of the refrigerant. The refrigerant circuit of the first water-refrigerant heat exchanger 50 is connected between the outlet of the condenser 20 and the throttling device 30. Thus, the high-temperature, high-pressure refrigerant flowing from the compressor 10, after being cooled by the condenser 20, flows back into the refrigerant circuit of the first water-refrigerant heat exchanger 50 and exchanges heat with the water circuit of the first water-refrigerant heat exchanger 50, further cooling and subcooling the refrigerant. This further reduces the refrigerant temperature, thereby reducing the energy consumption of the air conditioning system and improving its cooling capacity. Even in high-temperature environments, when the outdoor temperature is high and the exhaust temperature of the compressor 10 is also high, the water circuit of the first water-refrigerant heat exchanger 50 can assist the condenser 20 in dissipating heat from the refrigerant, ensuring the cooling effect. This ensures the cooling capacity of the air conditioning system in high-temperature environments.

[0040] A buffer tank 501 is installed between the outlet of the water circuit of the first water-fluoride heat exchanger 50 and the water usage point. The buffer tank 501 can temporarily store the water after heat exchange in the water circuit of the first water-fluoride heat exchanger 50. Through volume buffering, the buffer tank 501 smooths out instantaneous fluctuations in the flow rate or temperature of the external water source (such as a sudden drop in flow rate during peak water usage), ensuring a stable water flow rate in the first water-fluoride heat exchanger 50 and maintaining a stable condensation heat recovery efficiency. The buffer tank 501 can temporarily store excess heat and release it quickly when external water demand surges, achieving "peak shaving and valley filling" of hot water supply and solving the problem of energy waste or hot water shortage caused by instantaneous imbalance between heat supply and demand in traditional systems. This embodiment of the present disclosure solves the problems of heat dissipation stability of the air conditioning system, buffers water pressure and temperature fluctuations in the air conditioning system's water circuit, balances water supply demand, and ensures the safety of the heat exchange circuit by setting up the first water-fluoride heat exchanger 50 and the buffer tank 501.

[0041] Optionally, such as Figure 1As shown, the air conditioning system also includes a first pipe 506 and a water flow buffer 502. The first pipe 506 is connected between the inlet of the buffer water tank 501 and the outlet of the water path of the first water-fluoride heat exchanger 50. The water flow buffer 502 is located on the first pipe 506 and is used to regulate the flow rate of the water in the water path of the first water-fluoride heat exchanger 50.

[0042] In this embodiment, a water flow damper 502 is added to the buffer tank 501 to further optimize the dynamic adjustment capability of the water system. The water flow damper 502 actively controls the water flow velocity from the first water-fluoride heat exchanger 50 to the buffer tank 501 through mechanical damping or an electronic flow control valve (such as a proportional valve), preventing water hammer effects caused by sudden start-up and shutdown of external water-using devices and protecting the pipe interfaces of the water-fluoride heat exchanger from impact damage. During off-peak water usage periods or when water-using devices are not in use, the flow rate is reduced, extending the residence time of water in the heat exchanger, improving the heat exchange efficiency between the high-temperature refrigerant and water, and avoiding "ineffective overflow" caused by excessive flow rate. Furthermore, the water flow damper 502 can be adjusted according to the refrigerant temperature in the refrigerant path of the first water-fluoride heat exchanger 50, thereby regulating the water flow velocity in the water path of the first water-fluoride heat exchanger 50, ensuring heat exchange efficiency. For example, when the refrigerant temperature is high, the water flow velocity in the first water-fluoride heat exchanger 50 can be reduced to increase the heat exchange time. When the refrigerant temperature is low, the flow rate can be increased.

[0043] Optionally, the air conditioning system also includes a second pipe 507 and a flow switch 503. The second pipe 507 is adapted to connect between the outlet of the buffer tank 501 and the water-using device. The flow switch 503 is located in the second pipe 507 and is used to control the flow rate of water at the outlet of the buffer tank 501.

[0044] In this embodiment, the flow switch 503 is located at the outlet of the buffer water tank 501. The flow switch 503 can control the water output of the buffer water tank 501, allowing it to be controlled according to the needs of different water-using devices. For example, when an interruption in the water demand is detected, the water supply is immediately cut off to prevent energy waste caused by continuous drainage from the tank. If the outlet flow is abnormal (such as pipe blockage or water pump failure), the flow switch 503 triggers an alarm and shuts down the refrigerant circuit to prevent the water-fluorine heat exchanger from dry burning and being damaged due to lack of water, thus improving system reliability.

[0045] Optionally, the inlet of the water-fluoride heat exchanger is connected to an external water source via a third pipe 508. The external water source can be municipal water supply.

[0046] Examples of water-using devices include washing machines, faucets, water heaters, underfloor heating, toilet water supply, and washing and rinsing water supply devices.

[0047] Optionally, the air conditioning system also includes a controller, which is electrically connected to both the water flow damper 502 and the flow switch 503. The controller is configured to control the water flow damper 502 to open to a first opening degree when the flow switch 503 is closed, so that the water path of the first water-fluoride heat exchanger 50 flows at a first flow rate; and to control the water flow damper 502 to open to a second opening degree when the flow switch 503 is open, so that the water path of the first water-fluoride heat exchanger 50 flows at a second flow rate, wherein the first opening degree is less than the second opening degree and the first flow rate is less than the second flow rate.

[0048] In this embodiment, when the flow switch 503 is closed, it indicates that the water-using device does not need water. At this time, water only flows in and does not flow out of the buffer tank 501. The water flow damper 502 opens to a smaller first opening, allowing water from the first water-fluoride heat exchanger 50 to flow into the buffer tank 501 at a lower first flow rate, maintaining the minimum flow requirement of the first water-fluoride heat exchanger 50 and avoiding localized overheating or scaling problems caused by complete flow interruption. When the flow switch 503 is open, it indicates that the user has a water demand. The controller adjusts the water flow damper 502 to a larger second opening, enabling the water circuit to operate at high speed, quickly outputting hot water and improving heat exchange efficiency to meet the user's immediate needs. In this embodiment, the controller upgrades the independent operation of the water flow damper 502 and the flow switch 503 to intelligent linkage control. By dynamically adjusting the flow rate and opening, precise matching, efficient operation, and intelligent protection of the water circuit system of the first water-fluoride heat exchanger 50 are achieved, significantly improving the energy efficiency, reliability, and user experience of the air conditioning system.

[0049] Optionally, the air conditioning system further includes a first detection device, which is located in the buffer water tank 501 and is used to detect the water level in the buffer water tank 501. The first detection device is electrically connected to the controller, which is configured to fully open the water flow buffer 502 when the water level in the buffer water tank 501 is lower than or equal to a first preset water level.

[0050] In this embodiment, the first detection device can detect the water level in the buffer tank 501 in real time. When the water level in the buffer tank 501 is low, the controller controls the water flow buffer 502 to be fully open. This increases the water flow rate into the buffer tank 501 from the water-fluoride heat exchanger, accelerating the water replenishment efficiency and volume to ensure the water demand of the water-using device. Here, the first water level is the minimum water level in the buffer tank 501 required to ensure the water-using device has sufficient water.

[0051] Optionally, such as Figure 2 , Figure 3 and Figure 4As shown, the condenser 20 includes a second water-fluoride heat exchanger 60, and the air conditioning system also includes a water supply tank 601. The outlet of the water supply tank 601 is connected to the inlet of the water circuit of the second water-fluoride heat exchanger 60, and the return outlet of the water supply tank 601 is connected to the outlet of the water circuit of the second water-fluoride heat exchanger 60.

[0052] In this embodiment, by adding a second water-fluoride heat exchanger 60 to the condenser 20 and matching it with a water supply tank 601, the system further expands its waste heat recovery capacity and thermal energy utilization scenarios. The air conditioning system is equipped with a first water-fluoride heat exchanger 50 and a second water-fluoride heat exchanger 60, forming a two-stage heat dissipation device and enabling two-stage waste heat recovery. The first water-fluoride heat exchanger 50 recovers the high-temperature refrigerant waste heat from the outlet of the condenser 20 for preparing domestic hot water. The second water-fluoride heat exchanger 60 recovers the refrigerant waste heat from the mid-temperature section of the condenser 20 for preheating the cold water in the water supply tank 601, forming a "high-temperature-mid-temperature" two-stage waste heat recovery system, thereby improving the overall energy efficiency of the air conditioning system. Furthermore, the return and outlet of the water supply tank 601 form a closed-loop water circuit, ensuring that the second water-fluoride heat exchanger 60 continuously absorbs condensation heat, avoiding thermal energy waste. The water supply tank 601 is connected to the water circuit of the second water-refrigerant heat exchanger 60, which serves as a buffer unit for the second water-refrigerant heat exchanger 60, smoothing out fluctuations in the external water source temperature and ensuring stable operation of the heat exchanger. When the air conditioning system is operating under high load, the second water-refrigerant heat exchanger 60 can share part of the condensing heat load, reduce the pressure of the condenser 20, and improve the operating efficiency and lifespan of the compressor 10.

[0053] like Figure 2 As shown, the outlet of the water supply tank 601 is connected to the inlet of the water circuit of the second water-fluoride heat exchanger 60 through the fourth pipe 608, and the return outlet of the water supply tank 601 is connected to the outlet of the water circuit of the second water-fluoride heat exchanger 60 through the fifth pipe 609.

[0054] Optionally, the return water inlet of the water supply tank 601 is located at the upper part of the water supply tank 601, and the outlet water inlet is located at the lower part of the water supply tank 601. In this way, the water supply tank 601 stores preheated warm water in the upper part and cold water in the lower part through the natural stratification effect (hot water rises and cold water sinks), which facilitates the second water-fluoride heat exchanger 60 to preferentially heat the low-temperature water and improve the heat exchange efficiency.

[0055] Optionally, the air conditioning system also includes a water pump located between the water supply tank 601 and the second water-fluoride heat exchanger 60. The water pump is used to drive the flow of water in the closed loop formed by the return port and the outlet of the water supply tank 601, so that the water in the water supply tank 601 can flow into the water circuit of the second water-fluoride heat exchanger 60 and then flow back into the water supply tank 601.

[0056] Optionally, the water supply tank 601 also has a water inlet and a drain outlet. The water inlet is used to replenish water into the water supply tank 601, and the drain outlet is used to drain water from the water supply tank 601. The air conditioning system also includes a water supply pipe 602 and a drain pipe 604. The water supply pipe 602 is connected to the water inlet and is equipped with a water supply valve 603, which is used to control the opening and closing of the water inlet. The drain pipe 604 is connected to the drain outlet and is equipped with a drain valve 605, which is used to control the opening and closing of the drain outlet.

[0057] In this embodiment, by adding a water inlet and a drain outlet, along with matching water inlet valve 603 and drain valve 605, the air conditioning system further enhances the flexibility and controllability of water management. For example, the water inlet valve 603 automatically controls the opening and closing of the water inlet based on the water level sensor signal of the water supply tank 601, ensuring that the water level in the tank is always within the optimal range. For instance, it automatically replenishes water when the water level is below the lower limit and automatically closes when it reaches the upper limit, avoiding the risk of insufficient water supply due to excessively low water levels or overflow due to excessively high water levels. When the air conditioning system is operating under high load or water demand surges, the water inlet valve 603 responds quickly, replenishing water in a timely manner to maintain the continuous and stable operation of the water system. The drain valve 605 can periodically drain the sediment in the water supply tank 601, keeping the water clean and extending the service life of the second water-fluoride heat exchanger 60. The water inlet valve 603 and drain valve 605 work together to achieve dynamic pressure regulation of the water system. For example, during water replenishment, the drain valve 605 is simultaneously slightly opened to prevent impact on the water tank structure due to excessively high instantaneous water replenishment pressure. When abnormal water pressure is detected (such as excessively high water replenishment pressure or drainage blockage), the controller will close the water replenishment valve 603 or the drain valve 605, trigger an alarm, and record fault information, thereby improving system safety. The introduction of the water replenishment valve 603 and the drain valve 605 enables intelligent water replenishment, convenient drainage, and pressure balancing of the water supply tank 601. Through linkage control with the controller, the operational stability, maintenance convenience, and resource utilization efficiency of the water system are further improved, providing a reliable guarantee for the long-term efficient operation of the air conditioning system's waste heat recovery system. It also ensures the condensation effect of the air conditioning system, thereby guaranteeing the cooling effect.

[0058] Optionally, the air conditioning system further includes a second detection device and a third detection device. The second detection device is located inside the water supply tank 601 and is used to detect the water temperature inside the water supply tank 601. The third detection device is located inside the water supply tank 601 and is used to detect the water level inside the water supply tank 601. The controller is electrically connected to the water supply valve 603, the drain valve 605, the second detection device, and the third detection device. The controller is configured to control the water supply valve to open when the water level in the water supply tank 601 is lower than or equal to a second preset water level, and to control the drain valve 605 to open when the water temperature in the water supply tank 601 is greater than or equal to a preset temperature.

[0059] In this embodiment, the third detection device monitors the water level in the water supply tank 601 in real time. When the water level is lower than or equal to the second preset water level, the controller immediately opens the water supply valve 603 to quickly replenish the water supply, ensuring the continuous and stable operation of the water circuit system of the second water-fluoride heat exchanger 60 and avoiding a decrease in heat exchange efficiency or dry burning of the equipment due to water shortage. Optionally, when the water level reaches the upper limit, the controller automatically closes the water supply valve 603 to prevent overflow and reduce water waste.

[0060] The second detection device monitors the water temperature in the water supply tank 601 in real time. When the water temperature is greater than or equal to the preset temperature, the controller opens the drain valve 605 to discharge some high-temperature water and replenish low-temperature water, preventing the efficiency of the second water-refrigerant heat exchanger 60 from decreasing or scale buildup on the inner wall of the tank due to excessively high water temperature. By precisely controlling the water level and temperature, the controller ensures that the water supply tank 601 is always in optimal operating condition, improving the overall energy efficiency of the air conditioning system. Through the introduction of the second and third detection devices, combined with the intelligent linkage control of the controller, the air conditioning system achieves precise water level regulation and dynamic water temperature optimization of the water circuit system of the second water-refrigerant heat exchanger 60, significantly improving the energy efficiency, reliability, and user experience of the air conditioning system, and providing comprehensive protection for the long-term efficient operation of the air conditioning waste heat recovery system and the cooling and heating performance of the air conditioning system.

[0061] Optionally, in low-temperature environments, the controller dynamically adjusts the opening of the water supply valve 603 based on the water temperature data, prioritizing the supply of low-temperature water to improve the waste heat recovery efficiency of the second water-fluoride heat exchanger 60.

[0062] Optionally, the drainage pipeline includes a first drainage pipe 606 and a second drainage pipe 607. The first drainage pipe 606 is adapted to connect the drain outlet to the outside; the second drainage pipe 607 connects the drain outlet to the water-using device; wherein, a drain valve 605 connects the drain outlet, the first drainage pipe 606 and the second drainage pipe 607, and the drain valve 605 is used to switch the drain outlet to be connected to the first drainage pipe 606 or to the second drainage pipe 607.

[0063] In this embodiment, the drainage outlet of the water supply tank 601 can be switched via the drain valve 605, improving drainage flexibility and resource utilization. For example, when the water temperature in the water supply tank 601 is detected to be lower than the preset temperature, the controller switches the drain valve 605 to connect the drain outlet to the second drain pipe, delivering warm water to the water-using device to achieve heat energy reuse and avoid energy waste caused by direct discharge of low-temperature water. When the water temperature is higher than the preset temperature or the water quality is substandard, the controller switches the drain valve 605 to connect the drain outlet to the first drain pipe, directly discharging high-temperature water or sewage to the outside to prevent damage to the water-using equipment. Alternatively, when the air conditioning system is shut down in winter, the drain valve 605 can be switched to the first drain pipe to quickly empty the water in the water supply tank 601 and pipelines, preventing equipment damage caused by freezing in low-temperature environments.

[0064] Optionally, such as Figure 5 As shown, the air conditioning system also includes a water supply pipeline, which is adapted to connect an external water source and a water-using device. The water supply pipeline includes a first water supply pipeline 504 and a second water supply pipeline 505. The water circuit of the water-fluoride heat exchanger and the buffer water tank 501 are connected in series in the first water supply pipeline 504; wherein, the first water supply pipeline 504 and the second water supply pipeline 505 are connected in parallel.

[0065] In this embodiment, the first water supply pipeline 504 is connected in series with the first water-fluoride heat exchanger 50 and the buffer water tank 501 for efficient recovery of condensation heat and preparation of domestic hot water. The second water supply pipeline 505 is directly connected to an external water source and the water-using device, serving as a backup water supply channel to ensure continuous water supply to the water-using device when the first water supply pipeline 504 is under maintenance or malfunctions. This dual water supply system ensures the reliability of the air conditioning system. Furthermore, when users do not require hot water, both the first and second water supply pipelines can directly supply cold water, meeting diverse water usage needs.

[0066] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioning system, characterized in that, include: The heat exchange circuit includes a compressor, condenser, throttling device, and evaporator connected by heat exchange pipes; The first water-fluorine heat exchanger has its fluorine circuit connected between the outlet of the condenser and the throttling device, and its water circuit inlet is suitable for connection with an external water source. The buffer water tank has its inlet connected to the outlet of the water circuit of the first water-fluoride heat exchanger, and its outlet is suitable for connection to the water-using device.

2. The air conditioning system according to claim 1, characterized in that, Also includes: The first pipeline connects the inlet of the buffer water tank and the outlet of the water circuit of the first water-fluoride heat exchanger. A water flow buffer, located in the first pipeline, is used to regulate the flow rate of water in the water path of the first water-fluoride heat exchanger.

3. The air conditioning system according to claim 2, characterized in that, Also includes: The second pipeline is suitable for connecting the outlet of the buffer tank and the water-using device; A flow switch, located in the second pipeline, is used to control the flow rate of water at the outlet of the buffer tank.

4. The air conditioning system according to claim 3, characterized in that, Also includes: The controller is electrically connected to both the water flow damper and the flow switch. The controller is configured to control the water flow damper to open to the first opening degree when the flow switch is closed. When the flow switch is turned on, the water flow buffer is controlled to open to the second opening degree, which is smaller than the first opening degree.

5. The air conditioning system according to claim 4, characterized in that, Also includes: The first detection device is installed inside the buffer tank and is used to detect the water level inside the buffer tank. The first detection device is electrically connected to the controller, which is configured to fully open the water flow buffer when the water level in the buffer tank is lower than or equal to the first preset water level.

6. The air conditioning system according to claim 4, characterized in that, The condenser includes a second water-fluoride heat exchanger, and the air conditioning system also includes: The water supply tank is equipped with an outlet and a return outlet. The outlet of the water supply tank is connected to the inlet of the water circuit of the second water-fluoride heat exchanger, and the return outlet of the water supply tank is connected to the outlet of the water circuit of the second water-fluoride heat exchanger.

7. The air conditioning system according to claim 6, characterized in that, The water supply tank also has a water inlet and a water outlet. The water inlet is used to add water to the water supply tank, and the water outlet is used to drain the water from the water supply tank. The air conditioning system also includes: The water supply pipeline is connected to the water supply inlet and is equipped with a water supply valve, which is used to control the opening and closing of the water supply inlet. The drainage pipe is connected to the drain outlet and is equipped with a drain valve, which is used to control the opening and closing of the drain outlet.

8. The air conditioning system according to claim 7, characterized in that, Also includes: The second detection device is located inside the water supply tank and is used to detect the water temperature inside the water supply tank. The third detection device is located inside the water supply tank and is used to detect the water level in the water supply tank. The controller is electrically connected to the water supply valve, the drain valve, the second detection device, and the third detection device. The controller is configured to open the water supply valve when the water level in the water supply tank is lower than or equal to the second preset water level, and to open the drain valve when the water temperature in the water supply tank is greater than or equal to the preset temperature.

9. The air conditioning system according to claim 7, characterized in that, Drainage pipes include: The first drain pipe is suitable for connecting the drain outlet to the outside; The second drain pipe connects the drain outlet to the water-using device; The drain valve is connected between the drain outlet, the first drain pipe, and the second drain pipe. The drain valve is used to switch the connection between the drain outlet and the first drain pipe or between the drain outlet and the second drain pipe.

10. The air conditioning system according to any one of claims 1 to 9, characterized in that, Also includes: The water supply pipeline is suitable for connecting an external water source and a water-using device. The water supply pipeline includes a first water supply pipeline and a second water supply pipeline. The water circuit of the water-fluoride heat exchanger and the buffer water tank are connected in series in the first water supply pipeline. The first water supply pipeline and the second water supply pipeline are connected in parallel.

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