Refrigeration cycle unit and air conditioner

Abstract

This application provides a refrigeration cycle device and an air conditioner. The refrigeration cycle device, by incorporating a heat exchanger and an evaporator, allows the controller to adjust the heat exchanger based on the real-time pressure and saturation pressure at the refrigerant inlet, enabling heat exchange between the refrigerant and the solution, or to adjust the evaporator to exchange heat with the solution. This ensures that the real-time pressure at the refrigerant outlet of the heat exchanger is lower than its saturation pressure, allowing the device to cool the solution by absorbing heat during refrigerant evaporation. This achieves efficient energy utilization and solves the problems of high energy consumption and low evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

Description

Technical Field

[0001] This application relates to air conditioners, and more specifically, to a refrigeration cycle device and an air conditioner. Background Technology

[0002] The perceived temperature often differs from the actual air temperature. Perceived temperature refers to the physical or mental sensation a person experiences when in contact with the external environment through their skin, influenced by factors such as temperature, humidity, wind, and solar radiation. In many weather conditions, such as the plum rain season, although the air temperature may not be very high, the humidity is high, making the perceived temperature feel higher, and people may feel like they are not sweating.

[0003] Currently, air conditioners often use evaporators for cooling and dehumidification. To meet dehumidification requirements, the air temperature needs to be lowered to a very low level. To meet supply air temperature requirements, reheating is necessary, leading to increased energy consumption. In addition, air conditioners often dehumidify intermittently, making it impossible to achieve a comfortable feeling with constant temperature and humidity. Summary of the Invention

[0004] The main objective of this application is to provide a refrigeration cycle device and an air conditioner to at least solve the problems of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

[0005] To achieve the above objectives, according to one aspect of this application, a refrigeration cycle apparatus is provided, comprising:

[0006] The system includes a compressor, a four-way valve, a regenerator, a condenser, a liquid storage device, a heat exchanger, an evaporator, and a controller. The compressor is connected to the regenerator and the heat exchanger via the four-way valve. The heat exchanger is connected to the outlet of the liquid storage device, and the inlet of the liquid storage device is connected to the regenerator. The controller communicates with the heat exchanger.

[0007] The compressor discharges high-temperature, high-pressure refrigerant, which then enters the regenerator via the four-way valve. The solution in the regenerator absorbs heat from the exhaust pipe, causing its temperature to rise. After heat exchange, the refrigerant flows through the condenser and then into the evaporator. The evaporator cools the fresh air and then blows cold air into the room.

[0008] The controller is used to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the heat exchanger to exchange heat between the evaporator and the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet of the heat exchanger, so that the real-time pressure at the refrigerant outlet of the heat exchanger is less than the saturation pressure at the refrigerant outlet of the heat exchanger.

[0009] Optionally, the heat exchanger device includes: a first valve, a second valve, and a heat exchanger. The first end of the first valve is connected to the solution inlet of the heat exchanger, the solution outlet of the heat exchanger is connected to the second end of the second valve, the refrigerant inlet of the heat exchanger is connected to the four-way valve, the refrigerant inlet of the heat exchanger is connected to the evaporation device, the second end of the second valve is also connected to the regenerator, the second end of the first valve and the first end of the second valve are respectively connected to the outlet of the liquid storage device, and the first valve and the second valve are respectively electrically connected to the controller.

[0010] Optionally, the controller is configured to control the heat exchanger to exchange heat between the refrigerant and the solution based on the real-time pressure and saturation pressure at the refrigerant inlet, or to control the heat exchanger to exchange heat between the evaporator and the solution, including:

[0011] When the real-time pressure at the refrigerant inlet of the heat exchanger is less than the saturation pressure at the refrigerant inlet of the heat exchanger, the first valve is opened and the second valve is closed so that the refrigerant can exchange heat with the solution.

[0012] When the real-time pressure at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure at the refrigerant inlet of the heat exchanger, and the temperature at the refrigerant inlet of the heat exchanger is greater than or equal to the temperature at the outlet of the liquid storage device, the first valve is closed and the second valve is opened so that the evaporation device can exchange heat with the solution.

[0013] If the real-time pressure at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure at the refrigerant inlet of the heat exchanger, and the temperature at the refrigerant inlet of the heat exchanger is less than the temperature at the outlet of the liquid storage device, the heating power of the liquid storage device shall be increased.

[0014] Optionally, the evaporation equipment includes: a first evaporation pipe, a solution dehumidifier, a first blower, and a second blower. The outlet of the solution dehumidifier is connected to the first blower, the inlet of the solution dehumidifier is connected to the second blower, the air outlet of the first blower is connected to the first evaporation pipe, and the solution at the outlet of the liquid storage device flows through the solution dehumidifier to cool and dehumidify the fresh air drawn in by the second blower.

[0015] Optionally, the evaporation device further includes: a water pump and a second evaporation pipe, the second evaporation pipe being used to connect the refrigerant inlet of the heat exchanger device and the condensation device, the circulation pipeline of the water pump passing through the solution dehumidification generator and the second evaporation pipe, the second evaporation pipe being used to use the water pumped in by the water pump as the cooling medium during solution dehumidification.

[0016] Optionally, the solution dehumidifier has a multi-stage cooling and dehumidification structure.

[0017] Optionally, the refrigeration cycle device further includes a third valve for connecting the second evaporator coil and the condenser.

[0018] Optionally, the condensing device includes a condenser and an expansion valve connected in sequence, the inlet of the condenser being connected to the regenerator, and the outlet of the expansion valve being connected to the second evaporator pipe.

[0019] Optionally, the liquid storage device has a multi-stage heating structure.

[0020] According to another aspect of this application, an air conditioner is provided, comprising: a device for performing any of the described refrigeration cycles.

[0021] By applying the technical solution of this application, a heat exchanger and an evaporation device are set up, so that the controller controls the heat exchanger to exchange heat between the refrigerant and the solution, or controls the heat exchanger to exchange heat between the evaporation device and the solution, based on the real-time pressure and saturation pressure of the refrigerant inlet of the heat exchanger. This ensures that the real-time pressure of the refrigerant outlet of the heat exchanger is less than the saturation pressure of the refrigerant outlet, allowing this application to cool the solution by absorbing heat through refrigerant evaporation, achieving full utilization of energy. This solves the problem of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 A first schematic diagram of a refrigeration cycle apparatus provided in an embodiment of this application is shown;

[0024] Figure 2 A schematic diagram of a process for controlling a heat exchanger device to exchange heat between a refrigerant and a solution, or controlling a heat exchanger device to exchange heat between an evaporation device and a solution, according to an embodiment of this application, is shown.

[0025] Figure 3 A second schematic diagram of a refrigeration cycle apparatus provided according to an embodiment of this application is shown.

[0026] The above figures include the following reference numerals:

[0027] 100. Compressor; 200. Four-way valve; 300. Regenerator; 400. Condensing equipment; 410. Condenser; 420. Expansion valve; 500. Liquid storage equipment; 510. Solution storage tank; 511. Drain port; 512. Return port; 520. Solar panel; 530. Inverter; 540. First heating wire; 550. Second heating wire; 560. Spraying equipment; 570. Spraying water pump; 580. Power regulator; 600. Heat exchanger equipment; 610. First valve; 620, Second valve; 630, Heat exchanger; 640, First pressure sensor; 650, First saturation pressure sensor; 660, First temperature sensor; 670, Second pressure sensor; 680, Second saturation pressure sensor; 700, Evaporation equipment; 710, First evaporation coil; 720, Solution dehumidification generator; 730, First blower; 740, Second blower; 750, Water pump; 760, Second evaporation coil; 800, Third valve; 900, Second temperature sensor. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application 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 the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] For ease of description, the following explains some of the nouns or terms used in the embodiments of this application:

[0032] Plate heat exchangers are commonly used heat exchange devices, primarily for heat transfer between different fluids. They consist of a series of parallel metal plates; the fluid flows between the plates, transferring heat through the plate surfaces. Plate heat exchangers offer advantages such as high heat exchange efficiency, small footprint, and easy maintenance, and are widely used in chemical, food, pharmaceutical, and energy industries. The working principle of a plate heat exchanger is based on its large heat transfer surface area and strong heat transfer capacity, resulting in high heat transfer efficiency. As the fluid flows between the plates, heat is transferred through the plate surfaces, achieving heat exchange between hot and cold fluids. Furthermore, the design of the plate heat exchanger allows the fluid to flow multiple times between the plates, further increasing heat transfer efficiency.

[0033] A solution dehumidifier is a device used to remove moisture from the air. It utilizes a desiccant in a solution to absorb moisture from the air, thereby reducing humidity. Typically, a solution dehumidifier includes a container filled with a desiccant solution and a ventilation system. When air flows through the ventilation system past the desiccant solution, moisture is absorbed, thus reducing the humidity in the air. Solution dehumidifiers are commonly used in industrial production, laboratories, and other similar environments to effectively control air humidity, helping to protect equipment and materials and improve production efficiency.

[0034] A regenerator is a device used to recover and reuse waste heat from air conditioners. Through a regenerator, the air conditioning system can convert waste heat into energy, thereby improving the system's energy efficiency and energy-saving performance. Regenerators typically use heat exchangers or heat pump technology to achieve waste heat recovery and reuse, effectively reducing energy waste, lowering operating costs, and reducing carbon emissions.

[0035] The compressor is a key component of an air conditioner. It is responsible for compressing low-pressure, low-temperature gas into high-pressure, high-temperature gas, thereby absorbing heat from the air and releasing it outdoors, thus achieving the cooling effect of the air conditioner. The compressor is usually driven by an electric motor and plays a crucial role in the air conditioner.

[0036] A four-way valve is a type of valve used to control the direction of fluid flow. It typically has four ports, allowing connection to four pipes. A four-way valve can control fluid flow in different directions, such as splitting fluid from one pipe into two, or merging fluid from two pipes into one. Four-way valves are widely used in hydraulic systems, air compression systems, and other fields to control the direction and pressure of fluid flow.

[0037] An evaporator coil is a piping system used to transfer heat and substances during the evaporation process. It is typically made of materials with good thermal conductivity, such as stainless steel, copper, and aluminum. The function of the evaporator coil is to convert liquid substances into gaseous states and transport them to where they are needed for further processing or utilization.

[0038] A blower is a device used to generate airflow or wind, commonly used in industrial production processes such as ventilation, gas transport, and drying. Blowers use rotating impellers or propellers to draw in and output air or gas, thereby generating a certain airflow pressure and flow rate. There are various types and operating principles of blowers, including centrifugal blowers, axial flow blowers, and grid blowers, which are widely used in industry, construction, environmental protection, and other fields.

[0039] As described in the background section, current air conditioners often use evaporators for cooling and dehumidification. To meet dehumidification requirements, the air temperature needs to be lowered to a very low level. To meet supply air temperature requirements, reheating is necessary, leading to increased energy consumption. Furthermore, air conditioners often operate intermittently during dehumidification, failing to achieve a comfortable balance of constant temperature and humidity. To address the issues of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices, embodiments of this application provide a refrigeration cycle device and an air conditioner.

[0040] This application provides a refrigeration cycle device, such as Figure 1 As shown ( Figure 1 (The controller is not shown). The refrigeration cycle unit includes:

[0041] The system includes a compressor 100, a four-way valve 200, a regenerator 300, a condenser 400, a liquid storage device 500, a heat exchanger 600, an evaporator 700, and a controller. The compressor is connected to the regenerator and the heat exchanger via the four-way valve. The heat exchanger is connected to the outlet of the liquid storage device, and the inlet of the liquid storage device is connected to the regenerator. The controller communicates with the heat exchanger.

[0042] The high-temperature and high-pressure refrigerant discharged from the compressor enters the regenerator through the four-way valve. The solution in the regenerator absorbs the heat from the exhaust pipe, and the solution temperature rises. After heat exchange, the refrigerant flows through the condenser and enters the evaporator. The evaporator cools the fresh air and then blows cold air into the room.

[0043] After vaporization, the refrigerant exchanges heat with the solution through a plate heat exchanger (i.e., the heat exchanger in the heat exchanger equipment) and then flows back to the compressor through a four-way valve, completing a closed-loop cycle.

[0044] The controller is used to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the heat exchanger to exchange heat between the evaporator and the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet of the heat exchanger, so that the real-time pressure at the refrigerant outlet of the heat exchanger is less than the saturation pressure at the refrigerant outlet of the heat exchanger.

[0045] In the aforementioned refrigeration cycle device, by setting up a heat exchanger and an evaporation device, the controller controls the heat exchanger to exchange heat between the refrigerant and the solution, or controls the evaporation device to exchange heat with the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet of the heat exchanger. This ensures that the real-time pressure at the refrigerant outlet of the heat exchanger is less than the saturation pressure at the refrigerant outlet, allowing the present application to utilize the heat absorption of refrigerant evaporation to cool the solution, achieving full utilization of energy. This solves the problem of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

[0046] In one embodiment of this application, such as Figure 2 As shown, the controller is used to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the heat exchanger to exchange heat between the evaporator and the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet, including:

[0047] When the real-time pressure P1 at the refrigerant inlet of the heat exchanger is less than the saturation pressure P2 at the refrigerant inlet of the heat exchanger, the first valve 610 is opened and the second valve 620 is closed so that the refrigerant can exchange heat with the solution.

[0048] When the real-time pressure P1 at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure P2 at the refrigerant inlet of the heat exchanger, and the temperature T1 at the refrigerant inlet of the heat exchanger is greater than or equal to the temperature T2 at the outlet of the liquid storage device, the first valve is closed and the second valve is opened so that the evaporation device can exchange heat with the solution. If the real-time pressure P3 at the refrigerant outlet of the heat exchanger is less than the saturation pressure P4 at the refrigerant outlet of the heat exchanger, the process ends. If the real-time pressure P3 at the refrigerant outlet of the heat exchanger is greater than or equal to the saturation pressure P4 at the refrigerant outlet of the heat exchanger, the heating power of the liquid storage device is increased, for example, by turning on the second heating wire.

[0049] If the real-time pressure P1 at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure P2 at the refrigerant inlet of the heat exchanger, and the temperature T1 at the refrigerant inlet of the heat exchanger is less than the temperature T2 at the outlet of the liquid storage device, increase the heating power of the liquid storage device, for example, by turning on the second heating wire, until the temperature T1 at the refrigerant inlet of the heat exchanger is greater than or equal to the temperature T2 at the outlet of the liquid storage device.

[0050] Specifically, the solution is cooled by absorbing heat from the evaporation of the refrigerant. A multi-stage heating and cooling method is used to fully utilize the heat and cold energy in the recovery system, ensuring complete evaporation of the refrigerant.

[0051] In one embodiment of this application, such as Figure 3 As shown, the heat exchanger device 600 includes: a first valve 610, a second valve 620, and a heat exchanger 630. The first end of the first valve is connected to the solution inlet of the heat exchanger, the solution outlet of the heat exchanger is connected to the second end of the second valve, the refrigerant inlet of the heat exchanger is connected to the four-way valve, the refrigerant inlet of the heat exchanger is connected to the evaporation device, the second end of the second valve is also connected to the regenerator, the second end of the first valve and the first end of the second valve are respectively connected to the outlet of the liquid storage device, and the first valve and the second valve are respectively electrically connected to the controller.

[0052] Specifically, such as Figure 3As shown, a first pressure sensor 640, a first saturation pressure sensor 650, and a first temperature sensor 660 are arranged at the outlet of the first evaporator pipe 710; a second pressure sensor 670 and a second saturation pressure sensor 680 are arranged at the refrigerant outlet of the plate heat exchanger; a second temperature sensor 900 is arranged between the drain port of the liquid storage device 500 and the plate heat exchanger. When the second valve is closed and the first valve is open, the solution and refrigerant exchange heat in the plate heat exchanger. When the second valve is open and the first valve is closed, the solution enters the solution dehumidifier directly without passing through the plate heat exchanger.

[0053] In one embodiment of this application, such as Figure 3 As shown, the evaporation device 700 includes: a first evaporation pipe 710, a solution dehumidifier 720, a first blower 730, and a second blower 740. The outlet of the solution dehumidifier is connected to the first blower, and the inlet of the solution dehumidifier is connected to the second blower. The air outlet of the first blower is connected to the first evaporation pipe. The solution at the outlet of the liquid storage device flows through the solution dehumidifier to cool and dehumidify the fresh air drawn in by the second blower.

[0054] In one embodiment of this application, such as Figure 3 As shown, the evaporation device 700 further includes: a water pump 750 and a second evaporation pipe 760. The second evaporation pipe is used to connect the refrigerant inlet of the heat exchanger device and the condensation device. The circulation pipeline of the water pump passes through the solution dehumidification generator and the second evaporation pipe. The second evaporation pipe is used to use the water pumped in by the water pump as the cooling medium during solution dehumidification.

[0055] First, the refrigerant passes through the condenser and expansion valve, then enters a branch circuit. One branch connects to the third valve, and the other end connects to the refrigerant coil in the first evaporator coil. Simultaneously, dehumidified fresh air flows through the first evaporator coil, thus cooling the dehumidified fresh air. The third valve regulates the flow rate of the refrigerant through the two branch circuits. One end of the refrigerant flow side in the second evaporator coil is connected to the third valve, and the other end connects to the refrigerant coil in the first evaporator coil. Simultaneously, cooling circulating water flows through the second evaporator coil and is circulated by a water pump. This cooling circulating water also circulates through the solution dehumidifier, serving as the cooling medium during solution dehumidification, ensuring the dehumidification process proceeds at approximately isothermal temperatures.

[0056] In the first evaporator coil, the refrigerant and the dehumidified fresh air do not come into contact for heat exchange; in the second evaporator coil, the cooling circulating water and the refrigerant do not come into contact for heat exchange; in the solution dehumidifier, the fresh air and the solution are mixed for dehumidification; and in the solution dehumidifier, the fresh air-solution mixture and the cooling circulating water do not come into contact for heat exchange.

[0057] In one embodiment of this application, the solution dehumidifier is a multi-stage cooling and dehumidification structure. Both the regenerator and the solution dehumidifier employ multi-stage heating and cooling methods, which ensures sufficient contact area for heat exchange while also enabling a high concentration difference between the solution inlet and outlet.

[0058] In one embodiment of this application, such as Figure 3 As shown, the refrigeration cycle device also includes a third valve 800, which is used to connect the second evaporator coil and the condenser.

[0059] Specifically, after passing through the condenser and expansion valve, the refrigerant enters a branch circuit. One circuit flows through the first evaporator coil to cool the fresh air, while the other circuit passes through the second evaporator coil to cool the incoming water. A third valve is installed to regulate the flow rate of the refrigerant through the two branch circuits. The cooling water is pumped into the solution dehumidifier to serve as the cooling medium during solution dehumidification, making the dehumidification process approximately isothermal and reducing the decrease in moisture absorption capacity caused by the temperature rise of the solution.

[0060] In one embodiment of this application, such as Figure 3 As shown, the condensing device includes a condenser 410 and an expansion valve 420 connected in sequence. The inlet of the condenser is connected to the regenerator, and the outlet of the expansion valve is connected to the second evaporator pipe.

[0061] In one embodiment of this application, the liquid storage device has a multi-stage heating structure. Both the regenerator and the solution dehumidifier employ multi-stage heating and cooling methods, ensuring sufficient contact area for heat exchange while also enabling a high concentration difference between the solution inlet and outlet.

[0062] like Figure 3 As shown, the solution storage tank 510 of the liquid storage device 500 is provided with a drain port 511 at the bottom and a return port 512 in the middle. After the solution is discharged from the drain port, it is cooled by heat exchange with the refrigerant through a plate heat exchanger and then passes through a solution dehumidifier. The solution dehumidifier is connected to the fresh air inlet. After the solution dehumidifies the fresh air, it enters the regenerator through the return pipe to absorb the heat from the refrigerant exhaust pipe. Then, it enters the liquid storage tank of the liquid storage device through the return port after being pumped by a water pump.

[0063] like Figure 3As shown, the liquid storage device 500 also includes a solar panel 520, an inverter 530, a first heating wire 540, a second heating wire 550 (the first heating wire is normally open, and the second heating wire is normally closed), a spraying device 560, a spraying water pump 570, and a power regulator 580. The first heating wire is kept normally open, and the second heating wire is equipped with a power regulator (which increases the power of the heating wire according to the number of adjustments). The regenerated solution enters the liquid storage device spraying device through the return port. The solution spraying increases the contact area with air, promoting the evaporation of water in the solution. In addition, the sprayed solution is heated by the first heating wire, which accelerates the evaporation of water.

[0064] This application also provides an air conditioner, comprising: a device that executes any of the aforementioned refrigeration cycles. By setting up a heat exchanger and an evaporator, the controller controls the heat exchanger to exchange heat between the refrigerant and the solution, or controls the heat exchanger to exchange heat between the evaporator and the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet of the heat exchanger. This ensures that the real-time pressure at the refrigerant outlet of the heat exchanger is less than the saturation pressure at the refrigerant outlet, allowing this application to utilize the heat absorption of refrigerant evaporation to cool the solution, achieving full energy utilization and solving the problems of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

[0065] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0066] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0067] 1) The refrigeration cycle device of this application, by setting up a heat exchanger and an evaporation device, enables the controller to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the heat exchanger to exchange heat between the evaporation device and the solution, based on the real-time pressure and saturation pressure of the refrigerant inlet of the heat exchanger. This ensures that the real-time pressure of the refrigerant outlet of the heat exchanger is less than the saturation pressure of the refrigerant outlet, allowing this application to cool the solution by absorbing heat through refrigerant evaporation, thus achieving full utilization of energy and solving the problem of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

[0068] 2) The air conditioner of this application, by setting up a heat exchanger and an evaporation device, enables the controller to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the evaporation device to exchange heat with the solution, based on the real-time pressure and saturation pressure of the refrigerant inlet of the heat exchanger. This ensures that the real-time pressure of the refrigerant outlet of the heat exchanger is less than the saturation pressure of the refrigerant outlet, allowing the present application to cool the solution by absorbing heat through refrigerant evaporation, thereby achieving full utilization of energy and solving the problem of high energy consumption and low solution evaporation efficiency caused by intermittent dehumidification in existing refrigeration cycle devices.

[0069] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A refrigeration cycle device, characterized in that, include: The system includes a compressor, a four-way valve, a regenerator, a condenser, a liquid storage device, a heat exchanger, an evaporator, and a controller. The compressor is connected to the regenerator and the heat exchanger via the four-way valve. The heat exchanger is connected to the outlet of the liquid storage device, and the inlet of the liquid storage device is connected to the regenerator. The controller communicates with the heat exchanger. The liquid storage device includes a heating structure. The compressor discharges high-temperature, high-pressure refrigerant, which then enters the regenerator via the four-way valve. The solution in the regenerator absorbs heat from the exhaust pipe, causing its temperature to rise. After heat exchange, the refrigerant flows through the condenser and then into the evaporator. The evaporator cools the fresh air and then blows cold air into the room. The controller is used to control the heat exchanger to exchange heat between the refrigerant and the solution, or to control the heat exchanger to exchange heat between the evaporator and the solution, based on the real-time pressure and saturation pressure at the refrigerant inlet of the heat exchanger, so that the real-time pressure at the refrigerant outlet of the heat exchanger is less than the saturation pressure at the refrigerant outlet of the heat exchanger.

2. The refrigeration cycle device according to claim 1, characterized in that, The heat exchanger device includes: a first valve, a second valve, and a heat exchanger. The first end of the first valve is connected to the solution inlet of the heat exchanger, the solution outlet of the heat exchanger is connected to the second end of the second valve, the refrigerant outlet of the heat exchanger is connected to the four-way valve, the refrigerant inlet of the heat exchanger is connected to the evaporation device, the second end of the second valve is also connected to the regenerator, the second end of the first valve and the first end of the second valve are respectively connected to the outlet of the liquid storage device, and the first valve and the second valve are respectively electrically connected to the controller.

3. The refrigeration cycle device according to claim 2, characterized in that, The controller is used to control the heat exchanger to exchange heat between the refrigerant and the solution based on the real-time pressure and saturation pressure at the refrigerant inlet, or to control the heat exchanger to exchange heat between the evaporator and the solution, including: When the real-time pressure at the refrigerant inlet of the heat exchanger is less than the saturation pressure at the refrigerant inlet of the heat exchanger, the first valve is opened and the second valve is closed so that the refrigerant can exchange heat with the solution. When the real-time pressure at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure at the refrigerant inlet of the heat exchanger, and the temperature at the refrigerant inlet of the heat exchanger is greater than or equal to the temperature at the outlet of the liquid storage device, the first valve is closed and the second valve is opened so that the evaporation device can exchange heat with the solution. If the real-time pressure at the refrigerant inlet of the heat exchanger is greater than or equal to the saturation pressure at the refrigerant inlet of the heat exchanger, and the temperature at the refrigerant inlet of the heat exchanger is less than the temperature at the outlet of the liquid storage device, the heating power of the liquid storage device shall be increased.

4. The refrigeration cycle device according to claim 1, characterized in that, The evaporation equipment includes: a first evaporation pipe, a solution dehumidifier, a first blower, and a second blower. The outlet of the solution dehumidifier is connected to the first blower, and the inlet of the solution dehumidifier is connected to the second blower. The air outlet of the first blower is connected to the first evaporation pipe. The solution at the outlet of the liquid storage device flows through the solution dehumidifier to cool and dehumidify the fresh air drawn in by the second blower.

5. The refrigeration cycle device according to claim 4, characterized in that, The evaporation equipment further includes: a water pump and a second evaporation pipe, the second evaporation pipe being used to connect the refrigerant inlet of the heat exchanger equipment and the condensation equipment, the circulation pipeline of the water pump passing through the solution dehumidification generator and the second evaporation pipe, the second evaporation pipe being used to use the water pumped in as the cooling medium during solution dehumidification.

6. The refrigeration cycle device according to claim 4, characterized in that, The solution dehumidifier has a multi-stage cooling and dehumidification structure.

7. The refrigeration cycle device according to claim 5, characterized in that, The refrigeration cycle device also includes a third valve, which is used to connect the second evaporator coil and the condenser.

8. The refrigeration cycle device according to claim 5, characterized in that, The condensing equipment includes a condenser and an expansion valve connected in sequence. The inlet of the condenser is connected to the regenerator, and the outlet of the expansion valve is connected to the second evaporator pipe.

9. The refrigeration cycle apparatus according to any one of claims 1 to 8, characterized in that, The liquid storage device has a multi-stage heating structure.

10. An air conditioner, characterized in that, include: The refrigeration cycle apparatus according to any one of claims 1 to 9.

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