A high efficiency air-to-water system

Abstract

The utility model belongs to water making technology field provides a kind of efficient air water making system, and the system includes: located circulation loop is connected by pipeline in proper order compressor, condenser, expansion valve and evaporator;Air inlet path is sequentially provided with air inlet fan, water absorption component, closed air inlet channel, infrared heating device is provided in closed air inlet channel, and the outlet of closed air inlet channel is close to and towards evaporator front end fin;It further includes water pan, for collecting the liquefied water on evaporator front end fin.The water absorption component and infrared heating device are set on air inlet path in the application, so that the temperature and humidity of air reaching evaporator front end fin are higher than ambient air, to improve the dew point of air reaching evaporator front end fin, improve or solve the frosting problem of evaporator front end fin, increase daily water making amount.

Description

Technical Field

[0001] This utility model relates to the field of water production technology, and in particular to a high-efficiency air-to-water system. Background Technology

[0002] An air-to-water system is used to extract moisture from the air and convert it into water. In related technologies, the air-to-water system utilizes a compressor to compress refrigerant into a high-temperature, high-pressure superheated gas. This superheated gas is then fed into a condenser and converted into a medium-temperature, high-pressure liquid refrigerant, releasing heat to the external environment. The medium-temperature, high-pressure liquid refrigerant is then fed into an evaporator and converted into a gaseous refrigerant, absorbing a large amount of heat from the environment. This causes water in the air surrounding the evaporator fins to liquefy and flow into a drip tray, thus achieving the purpose of water production. The gaseous refrigerant is then fed back into the compressor, forming a loop.

[0003] When air temperature drops, the air's ability to hold water vapor decreases, and the dew point temperature decreases accordingly. For example, in winter when the temperature is low, the water vapor content in the air is low, and the dew point temperature may be close to or below the freezing point, causing frost to easily form on the evaporator fins. Generally, when the ambient temperature is below 15°C, the dew point decreases. To successfully produce water, the evaporator fins need to be at an even lower temperature, which may cause frost to form on the evaporator fins and interrupt water production. Therefore, air-to-water systems in related technologies are difficult to produce water in low-temperature and low-humidity environments. Utility Model Content

[0004] This application aims to at least solve the technical problems existing in the prior art and provide a high-efficiency air-to-water system.

[0005] This application provides a high-efficiency air-to-water system, the system comprising: a compressor, a condenser, an expansion valve, and an evaporator connected in sequence via pipelines in a circulation loop; an intake fan, a water suction component, and a sealed air intake duct arranged in sequence along the air intake path, an infrared heating device being installed inside the sealed air intake duct, and the outlet of the sealed air intake duct being close to and facing the front fins of the evaporator; and a water collection tray for collecting liquefied water on the front fins of the evaporator.

[0006] The above technical solution involves the compressor, condenser, expansion valve, and condenser working together in a circulation loop. Water in the air entering through the air intake path liquefies upon contact with the evaporator's front fins and is collected by a water collection tray, thus achieving water production. To address the issue of water production interruption caused by frost formation on the evaporator fins when the ambient temperature is low in related technologies, this application incorporates a water-absorbing component and an infrared heating device in the air intake path. The water-absorbing component efficiently captures water from the air, while the infrared heating device heats the air flowing into the sealed air intake duct. The combined action of the water-absorbing component and the infrared heating device ensures that the temperature and humidity of the air reaching the evaporator's front fins are higher than those of the ambient air, thereby increasing the dew point of the air reaching the evaporator's front fins. This improves or even solves the frost formation problem on the evaporator's front fins, enabling water production even at low ambient temperatures. When the ambient temperature is normal, the water-absorbing properties of the water-absorbing component can also increase the daily water production.

[0007] In a preferred embodiment of this application, the outlet of the sealed air inlet duct matches the size of the front fins of the evaporator and is directly opposite the flow surface of the front fins of the evaporator.

[0008] The above technical solution facilitates heat exchange between the air transported in the sealed air inlet duct and the front fins of the evaporator as much as possible.

[0009] In a preferred embodiment of this application, the infrared heating device is located at the top of the sealed air inlet duct.

[0010] The above technical solution allows infrared light to irradiate as much air as possible into the sealed air intake duct, improving the heating effect, and the use of infrared heating mode can save energy.

[0011] In a preferred embodiment of this application, the water-absorbing component is a composite adsorption wheel, which includes an outer layer of silica-zeolite molecular sieve and an inner layer of hollow fiber membrane.

[0012] The above technical solution involves the outer layer of a silica-zeolite molecular sieve rapidly adsorbing a large number of water molecules from the air input by the air intake fan, while the inner layer of the hollow fiber membrane only allows the captured water vapor to pass through, blocking other impurities in the air (such as dust, bacteria, and organic gases) from entering, thereby achieving the directional penetration of pure water and increasing the humidity of the incoming air.

[0013] In a preferred embodiment of this application, the system further includes a control unit, which is electrically connected to the compressor, the infrared heating device, and the intake fan, respectively.

[0014] The above technical solution allows for different water production modes by adjusting the operating status of the compressor, infrared heating device, and air intake fan through the control unit.

[0015] In a preferred embodiment of this application, the system further includes a first through-beam photoelectric sensor and a second through-beam photoelectric sensor arranged in parallel at the front end of the evaporator, wherein the light emitting unit and the light receiving unit of the first through-beam photoelectric sensor and the second through-beam photoelectric sensor are respectively located above and below the front fins of the evaporator; the control unit is electrically connected to the light receiving unit of the first through-beam photoelectric sensor and the light receiving unit of the second through-beam photoelectric sensor respectively.

[0016] The above technical solution uses a first and a second through-beam photoelectric sensor to monitor the ice thickness of the evaporator front-end fins in the ice-melting gradient circulation water production mode, so as to switch between ice formation and melting and increase the daily water production.

[0017] In a preferred embodiment of this application, the system further includes an ambient temperature sensor, the output of which is connected to the signal input of the control unit.

[0018] The above technical solution uses an ambient temperature sensor to easily detect the current ambient temperature, so as to switch the water production mode according to the ambient temperature and increase the daily water production.

[0019] In a preferred embodiment of this application, a cooling fan is installed on the condenser.

[0020] The above technical solution can force convection and accelerate the heat dissipation of the condenser.

[0021] In a preferred embodiment of this application, an oil separator is further provided in the circulation loop between the compressor and the condenser; the compressor's exhaust port is connected to the oil separator's inlet via a pipeline, the compressor's oil return port is connected to the oil separator's first outlet via a pipeline, and the oil separator's second outlet is connected to the condenser's inlet via a pipeline.

[0022] The above technical solution prevents compressor lubricating oil from entering the condenser through an oil separator, thereby improving heat exchange efficiency.

[0023] In a preferred embodiment of this application, a gas-liquid separator is further provided between the compressor and the evaporator in the circulation loop. The inlet of the gas-liquid separator is connected to the outlet of the evaporator through a pipeline, and the outlet of the gas-liquid separator is connected to the return gas port of the compressor through a pipeline.

[0024] The above technical solution prevents liquid refrigerant from backflushing the compressor through a gas-liquid separator. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a high-efficiency air-to-water system in a preferred embodiment of this utility model; Figure 2This is a schematic diagram of the electrical connections of a high-efficiency air-to-water system in a preferred embodiment of this utility model; Figure 3 This is a control circuit diagram of the ice-melting gradient circulation water production mode in a preferred embodiment of this utility model; Reference numerals: 1 Compressor; 2 Oil separator; 3 Condenser; 4 Expansion valve; 5 Evaporator; 6 Gas-liquid separator; 7 Cooling fan; 8 Water tray; 9 Intake fan; 10 Water suction component; 11 Infrared heating device; 12 Light emitting unit of the first through-beam photoelectric sensor; 13 Light emitting unit of the second through-beam photoelectric sensor; 14 First bracket; 15 Light receiving unit of the first through-beam photoelectric sensor; 16 Light receiving unit of the second through-beam photoelectric sensor; 17 Second bracket. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] This utility model discloses a high-efficiency air-to-water system. In a preferred embodiment, please see [link to preferred embodiment]. Figure 1The system includes: a compressor 1, a condenser 3, an expansion valve 4, and an evaporator 5 connected in sequence by pipelines in the circulation loop; an air intake fan 9, a water suction component 10, and a sealed air intake duct are arranged in sequence in the air intake path, and an infrared heating device 11 is installed in the sealed air intake duct. The outlet of the sealed air intake duct is close to and faces the front fins of the evaporator 5; it also includes a water receiving tray 8 for collecting liquefied water on the front fins of the evaporator 5.

[0030] In this embodiment, the medium transported in the circulation loop is generally a refrigerant, which is not limited to Freon, R32 refrigerant, etc. In the circulation loop, the refrigerant gas entering from the return port of compressor 1 is compressed and converted into high-temperature and high-pressure superheated gas. After the high-temperature and high-pressure superheated gas is output from the exhaust port, it enters the condenser 3 for heat exchange treatment and is converted into medium-temperature and high-pressure liquid refrigerant. At the same time, the condenser 3 releases heat to the external environment. The medium-temperature and high-pressure liquid refrigerant coming out of the condenser 3 is throttled and depressurized by the expansion valve 4, and its flow rate is precisely controlled so that it can absorb heat and evaporate violently at a low temperature after entering the evaporator 5, thereby completing the refrigeration. The fins of the evaporator 5 absorb a large amount of heat from the external environment, and the fin temperature decreases. The air flowing in through the air inlet path flows through the flow surface of the front fins of the evaporator 5, and the water inside liquefies to form liquid water. The liquid water drips into the water collection tray 8 under the action of gravity, or the liquid water is introduced into the water collection tray 8 through a water groove pre-drilled in the flow surface of the front fins of the evaporator 5, thereby realizing water production.

[0031] In this embodiment, the side of the evaporator 5 facing the sealed air inlet outlet is called the front end, and the side of the evaporator 5 facing away from the sealed air inlet outlet is called the rear end. The evaporator 5 has fins, and the fins located at the front end of the evaporator 5 are called the front end fins of the evaporator 5. The surface on the front end fins of the evaporator 5 that is used to contact and exchange heat with the air at the sealed air inlet outlet is called the flow surface.

[0032] In this embodiment, preferably, please see Figure 1 As shown, the outlet of the sealed air inlet duct matches the size of the front fins of the evaporator 5, and the outlet of the sealed air inlet duct is directly opposite the flow surface of the front fins of the evaporator 5, so that the air transmitted in the sealed air inlet duct can exchange heat with the front fins of the evaporator 5 as much as possible, thereby increasing the daily water production.

[0033] In this embodiment, compressor 1 is preferably a variable frequency compressor 1, and the water production of the air-to-water generator directly depends on the efficiency of extracting moisture from the air. The motor speed of the variable frequency compressor 1 can be adjusted according to the current air temperature and humidity. For example, in hot and humid weather, when the air moisture content is high, compressor 1 can operate at medium to high speed to maximize water production while ensuring efficiency. In cold and humid weather, when the air moisture content is low, compressor 1 operates at low speed, resulting in slow and stable condensation. Using a variable frequency compressor 1 can especially optimize the cooling efficiency under low-temperature conditions. The cooling efficiency is equal to the cooling capacity divided by the input power. In this invention, the cooling efficiency reaches greater than or equal to 2.5 under an ambient temperature of -15℃.

[0034] In this embodiment, along the air intake path, the intake fan 9 continuously absorbs ambient air and delivers it to the water absorption component 10. The water absorption component 10 is similar to a desiccant, used to quickly absorb the moisture in the air drawn in by the intake fan 9, thereby increasing the humidity of the air in the sealed air intake duct. The infrared heating device 11 outputs infrared light to irradiate the air in the sealed air intake duct to increase its temperature.

[0035] In this embodiment, the intake fan 9 is preferably an adjustable speed fan. In specific applications, the speed of the intake fan 9 can be adjusted according to the weather conditions. For example, the speed in high temperature and high humidity weather is lower than the speed in low temperature and low humidity weather. This ensures that the water absorption component 10 can capture as much moisture as possible in low temperature and low humidity weather. It should be noted that the methods involved in the above control process are not within the protection scope of this utility model.

[0036] In this embodiment, the infrared heating device 11 can be an existing product, such as a wall-mounted infrared heater, which can be hung in a sealed air intake duct. Preferably, the infrared heating device 11 is located at the top of the sealed air intake duct, and an existing ceiling-mounted infrared heater can be selected. The infrared heating device 11 can be kept on continuously, or it can be turned on or off according to weather conditions to reduce energy consumption. For example, the infrared heating device 11 is turned off in hot and humid weather, and turned on in cold and humid weather. Alternatively, it can be set to a temperature that matches the humidity of the air in the sealed air intake duct to maximize water production efficiency, which can be set based on experience.

[0037] In this embodiment, preferably, the water-absorbing component 10 is a composite adsorption wheel, which includes an outer layer of silica-zeolite molecular sieve and an inner layer of hollow fiber membrane. The adsorption ratio of the outer layer of silica-zeolite molecular sieve is ≥300 m² / g, and the water absorption rate increases by 35% at 25% humidity. Preferably, the inner layer of hollow fiber membrane is a PVDF hollow fiber membrane inner layer, where PVDF represents polyvinylidene fluoride. The PVDF hollow fiber membrane inner layer enables selective permeation of water molecules, achieving a water permeability >5 L / m²·h.

[0038] In this embodiment, preferably, please see Figure 1 A cooling fan 7 is installed on the condenser 3. Specifically, the cooling fan 7 can be mounted on the surface of the condenser 3 using a mounting bracket.

[0039] In this embodiment, preferably, please see Figure 1 An oil separator 2 is also installed in the circulation loop between the compressor 1 and the condenser 3. The discharge port of the compressor 1 is connected to the inlet of the oil separator 2 via a pipeline, the oil return port of the compressor 1 is connected to the first outlet of the oil separator 2 via a pipeline, and the second outlet of the oil separator 2 is connected to the inlet of the condenser 3 via a pipeline. The oil separator 2 is not limited to a filter-type oil separator 2 or a centrifugal oil separator 2. The high-temperature and high-pressure superheated gas output from the discharge port of the compressor 1 is mixed with the lubricating oil of the compressor 1. Under the action of the oil separator 2, the lubricating oil and the refrigerant gas are separated. The lubricating oil flows from the first outlet of the oil separator 2 into the oil return port of the compressor 1 and returns to the compressor 1, while the refrigerant gas is output from the second outlet of the oil separator 2 to the condenser 3.

[0040] In this embodiment, preferably, please see Figure 1 In the circulation loop, a gas-liquid separator 6 is also installed between the compressor 1 and the evaporator 5. The inlet of the gas-liquid separator 6 is connected to the outlet of the evaporator 5 through a pipeline, and the outlet of the gas-liquid separator 6 is connected to the return gas port of the compressor 1 through a pipeline. The main task of the gas-liquid separator 6 is to separate the unevaporated liquid refrigerant from the gaseous refrigerant, allowing only the gaseous refrigerant to enter the compressor 1.

[0041] In a preferred embodiment, please see Figure 2 The system also includes a control unit, which is electrically connected to the compressor 1, the infrared heating device 11 and the intake fan 9 respectively.

[0042] In this embodiment, preferably, the intake fan 9 is a PWM speed-regulating fan, and the compressor 11 is a variable frequency compressor 1. The control unit includes a microcontroller, a variable frequency driver, and a solid-state relay. The microcontroller is connected to the control terminal of the variable frequency driver through a digital-to-analog output pin (DA pin) or a communication interface. It controls the variable frequency driver to convert the input fixed-frequency / voltage AC mains power (e.g., 50Hz / 220V) into a three-phase AC power with adjustable frequency and voltage by outputting different voltage values ​​through the DA pin or outputting commands through the communication interface, thereby driving the motor of compressor 1. The microcontroller uses a GPIO pin or PWM pin to output a PWM control signal to the PWM signal line of the PWM speed-regulating fan, adjusting the speed of the PWM speed-regulating fan by adjusting the frequency and duty cycle of the PWM signal. The positive terminal of the solid-state relay is connected to a GPIO pin of the microcontroller, and the negative terminal is connected to the ground pin of the microcontroller. The two AC connection terminals of the solid-state relay are connected in series in the power supply circuit of the infrared heating device 11 to realize the power-on or power-off control of the infrared heating device 11. It should be noted that the control methods in the above process are all existing technologies and are not within the protection scope of this utility model.

[0043] In a preferred embodiment, the system further includes an ambient temperature sensor, the output of which is connected to the signal input of the control unit.

[0044] In this embodiment, the principle of the ambient temperature switching system monitored by the ambient temperature sensor working in different water production modes is as follows: the ambient temperature sensor is used to detect the ambient temperature. When the ambient temperature is higher than the preset temperature threshold, the normal water production mode is adopted. When the ambient temperature is lower than or equal to the preset temperature threshold, the freezing-melting gradient circulation water production mode is adopted. The temperature threshold is not limited to 15°C.

[0045] The specific working process of the ice-melt gradient circulation water production mode includes: ① Start the intake fan 9, compressor 1 and cooling fan 7 until the fins of the evaporator 5 are frozen to the first preset ice layer thickness; ② Turn off compressor 1 and cooling fan 7, reduce the motor speed of intake fan 9 and turn on infrared heating device 11 to create ambient heat, heat the air inside the sealed intake fan, so that it reaches the flow surface of the front fins of evaporator 5 to melt ice, and the melted water is collected by water tray 8. ③ When the ice layer thickness of the finned flow area at the front end of the evaporator 5 returns to the second preset ice layer thickness (the second preset ice layer thickness can be 0), return to step ①, and repeat this cycle to achieve a gradient cycle of freezing and melting to produce water. The first preset ice layer thickness is greater than the second preset ice layer thickness.

[0046] It should be noted that the threshold comparison involved in the above-mentioned water production mode switching process is quite conventional and is not within the scope of protection of this utility model. Furthermore, the control logic involved in the freezing-melting gradient circulation water production mode is also not within the scope of protection of this utility model.

[0047] In a preferred embodiment, please see Figure 1 and Figure 2 The system also includes a first through-beam photoelectric sensor and a second through-beam photoelectric sensor arranged in parallel at the front end of the evaporator 5. The light emitting unit 13 and the light receiving unit of the first through-beam photoelectric sensor and the second through-beam photoelectric sensor are located above and below the front fins of the evaporator 5, respectively. The control unit is electrically connected to the light receiving unit 15 of the first through-beam photoelectric sensor and the light receiving unit 16 of the second through-beam photoelectric sensor, respectively.

[0048] In this embodiment, the first and second through-beam photoelectric sensors are not limited to those using NPN-type output through-beam photodetectors. For example, Omron's E3Z-T61 or Keyence's FU-67 can be selected. When there is ice in the communication optical path between the light emitting unit and the light receiving unit, the light emitted by the light emitting unit cannot reach the light receiving unit stably and with sufficient intensity due to the scattering, refraction and reflection of light. Therefore, the light receiving unit outputs a low-level signal. When there is no ice in the communication optical path between the light emitting unit and the light receiving unit, the light receiving unit outputs a high-level signal.

[0049] For ease of installation, such as Figure 1 As shown, a first support 14 is placed above the front of the front fins of the evaporator 5, and a second support 17 is placed below the front of the front fins of the evaporator 5, with the first support 14 and the second support 17 facing each other. A first through-beam photoelectric sensor and a second through-beam photoelectric sensor are fixed on the first support 14 and the second support 17. The fixing method is not limited to adhesive bonding, but can also be connected to the two supports via a base. The light emitting units 13 of the first and second through-beam photoelectric sensors are arranged side-by-side adjacent to each other on the first support 14 or the second support 17. The light receiving units 16 of the first and second through-beam photoelectric sensors are also arranged side-by-side adjacent to each other on the second support 17 or the first support 14. The light emitting unit 12 of the first through-beam photoelectric sensor is aligned with the receiving unit, and the light emitting unit 13 of the second through-beam photoelectric sensor is aligned with the receiving unit. The light emitting unit 13 and the light receiving unit of the second through-beam photoelectric sensor are positioned as close as possible to the flow surface of the front fins of the evaporator 5 in the horizontal direction. The preferred dimensions of the light receiving unit 16 or the light emitting unit of the first and second through-beam photoelectric sensors are φ12mm-φ18mm.

[0050] In this embodiment, the connection circuit of the solid-state relay controlling the infrared heating device 11 differs from that in previous embodiments. The control unit also includes an icing-melting gradient cycle control circuit, please see... Figure 3 The icing-melting gradient cycle control circuit includes a first resistor R1, a second resistor R2, a NOR gate, a switch K, and a solid-state relay. The resistance values ​​of the first resistor R1 and the second resistor R2 range from 1KΩ to 10KΩ. The NOR gate is a two-input NOR gate, and its model is not limited to 74HC02. The switch K is not limited to an NMOS transistor.

[0051] Specifically, the first end of the first resistor R1 is electrically connected to the DC power supply VCC, and the second end of the first resistor R1 is electrically connected to the output of the light receiving unit 15 of the first through-beam photoelectric sensor and the first input of the NOR gate, respectively; the first end of the second resistor R2 is electrically connected to the DC power supply VCC, and the second end of the second resistor R2 is electrically connected to the output of the light receiving unit 16 of the second through-beam photoelectric sensor and the second input of the NOR gate, respectively; the output of the NOR gate is connected to the first end of the switch K, the second end of the switch K is connected to the positive terminal of the control terminal of the solid-state relay, the control terminal of the switch K is connected to a GPIO pin (GPIO1) of the microcontroller, the negative terminal of the control terminal of the solid-state relay is grounded together with the microcontroller, and the two AC connection terminals of the solid-state relay are connected in series in the power supply circuit of the infrared heating device 11.

[0052] When the system is operating in normal water production mode, such as Figure 3 As shown, the microcontroller's GPIO1 pin outputs a low level, causing switch K to open and the control terminal of the solid-state relay to de-conduct, thus disconnecting the two AC connection terminals of the solid-state relay and shutting off the infrared heating device 11. The control unit controls the compressor 1 and the intake fan 9 to produce water.

[0053] When the system operates in the freezing-melting gradient circulation water production mode, such as Figure 3 As shown, the microcontroller's GPIO1 pin outputs a high level, which closes switch K and turns on the control terminal of the solid-state relay. Whether the two AC connection terminals of the solid-state relay are connected is determined by the high or low level output of the NOR gate.

[0054] In the ice-melting gradient circulation water production mode, during the initial ice-forming stage, there is no ice layer on the flow surface of the front fins of the evaporator 5. The light receiving unit 15 of the first through-beam photoelectric sensor outputs a high level, and the light receiving unit 16 of the second through-beam photoelectric sensor also outputs a high level. At this time, the NOR gate outputs a low level, the two AC connection terminals of the solid-state relay are disconnected, and the infrared heating device 11 does not start. As the intake fan 9, compressor 1, and cooling fan 7 are started, the ice thickness on the flow surface of the front fins of the evaporator 5 gradually increases, resulting in a state where the light receiving unit 15 of the first through-beam photoelectric sensor outputs a high level, and the light receiving unit 16 of the second through-beam photoelectric sensor outputs a low level. At this time, the NOR gate outputs a low level, the two AC connection terminals of the solid-state relay are disconnected, and the infrared heating device 11 still does not start. As icing continues, the light receiving unit 15 of the first through-beam photoelectric sensor outputs a low level, and the light receiving unit 16 of the second through-beam photoelectric sensor also outputs a low level. At this time, the ice thickness reaches the first preset ice thickness, the NOR gate outputs a high level, the two AC connection terminals of the solid-state relay are connected, and the infrared heating device 11 is started.

[0055] After the infrared heating device 11 is started, it enters the ice melting stage. As the ice melting progresses, the ice layer gradually becomes thinner, and the light receiving unit 15 of the first through-beam photoelectric sensor outputs a high level, while the light receiving unit 16 of the second through-beam photoelectric sensor outputs a low level. At this time, the NOR gate outputs a low level, the two AC connection terminals of the solid-state relay are disconnected, the infrared heating device 11 is turned off, and then it returns to the freezing stage.

[0056] It should be noted that the control methods used in the above process are all existing technologies and are not within the protection scope of this utility model.

[0057] Compared to traditional air-to-water systems, the high-efficiency air-to-water system provided by this invention operates under the following conditions: ambient temperature / humidity: 5℃ / 25%, using the same 1800kW cooling power, and compressor 1 with a cooling efficiency greater than or equal to 3. Verification results show that the daily water production capacity of this invention is greater than or equal to 15L, with a unit energy consumption of approximately 0.14kWh / L; while the daily water production capacity of traditional air-to-water systems is less than or equal to 3L, with a unit energy consumption of approximately 0.7kWh / L. The high-efficiency air-to-water system provided by this invention achieves stable water production at an ambient temperature of 5℃ through an ice-freezing-melting cycle. The adsorption wheel and infrared heating device 11 increase the water capture efficiency at 25% humidity to 85%, while the industry average humidity water capture efficiency is <50%.

[0058] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "example," "specific example," "a implementation," "a preferred implementation," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-efficiency air-to-water system, characterized in that, The system includes: The compressor, condenser, expansion valve, and evaporator are located in the circulation loop and connected in sequence by pipelines; An air intake fan, a water absorption component, and a sealed air intake duct are sequentially arranged in the air intake path. An infrared heating device is installed inside the sealed air intake duct, and the outlet of the sealed air intake duct is close to and faces the front fins of the evaporator. Also includes A drip tray is used to collect liquefied water from the front fins of the evaporator.

2. The high-efficiency air-to-water system according to claim 1, characterized in that, The outlet of the sealed air inlet duct matches the size of the front fins of the evaporator and is directly opposite the flow surface of the front fins of the evaporator.

3. The high-efficiency air-to-water system according to claim 1, characterized in that, The infrared heating device is located at the top of the sealed air intake duct.

4. A high-efficiency air-to-water system according to any one of claims 1-3, characterized in that, The water-absorbing component uses a composite adsorption wheel, which consists of an outer layer of silica gel-zeolite molecular sieve and an inner layer of hollow fiber membrane.

5. The high-efficiency air-to-water system according to claim 4, characterized in that, The system also includes a control unit, which is electrically connected to the compressor, the infrared heating device and the intake fan.

6. The high-efficiency air-to-water system according to claim 5, characterized in that, The system also includes a first through-beam photoelectric sensor and a second through-beam photoelectric sensor arranged in parallel at the front end of the evaporator. The light emitting unit and the light receiving unit of the first through-beam photoelectric sensor and the second through-beam photoelectric sensor are located above and below the front fins of the evaporator, respectively. The control unit is electrically connected to the light receiving unit of the first through-beam photoelectric sensor and the light receiving unit of the second through-beam photoelectric sensor, respectively.

7. A high-efficiency air-to-water system according to claim 5 or 6, characterized in that, The system also includes an ambient temperature sensor, the output of which is connected to the signal input of the control unit.

8. The high-efficiency air-to-water system according to claim 1, characterized in that, A cooling fan is installed on the condenser.

9. A high-efficiency air-to-water system according to claim 1, 2, 3, 5, 6, or 8, characterized in that, An oil separator is also installed in the circulation loop between the compressor and the condenser; The compressor's discharge port is connected to the oil separator's inlet via a pipeline, the compressor's oil return port is connected to the oil separator's first outlet via a pipeline, and the oil separator's second outlet is connected to the condenser's inlet via a pipeline.

10. A high-efficiency air-to-water system according to claim 9, characterized in that, A gas-liquid separator is also installed between the compressor and the evaporator in the circulation loop. The inlet of the gas-liquid separator is connected to the outlet of the evaporator through a pipeline, and the outlet of the gas-liquid separator is connected to the return gas port of the compressor through a pipeline.

Images