An adsorption air water production system matched with a centralized cold source

Abstract

The application discloses an adsorption air water production system matched with a centralized cold source, and belongs to the technical field of air water production, and comprises an efficient machine room, at least one water production unit, a runner regeneration air inlet channel, a water production channel, a runner treatment air outlet channel and a dehumidification runner. The dehumidification runner is divided into a regeneration side and an adsorption side, the regeneration side can desorb the moisture adsorbed by the adsorption side into air, and the adsorption side can adsorb the moisture in the air in the runner treatment air outlet channel. According to the application, the dehumidification runner can carry residual moisture in the air flowing through the adsorption side into the regeneration side; after desorption in the regeneration side, the humidity of the combined air is increased, water can still be stably separated under the condition of low-humidity inlet air; and the surface of the evaporator of the heat pump circuit does not have to be lowered to the freezing point.

Description

Technical Field

[0001] This invention relates to an adsorption-type air-to-water system with a central cold source, belonging to the field of air-to-water technology. Background Technology

[0002] Air-to-water generators can produce liquid water from the air, making them suitable for indoor environmental treatment and water replenishment applications in buildings with centralized cooling systems, industrial parks, commercial complexes, and areas with limited water resources. This technology is designed for operating conditions where outdoor or indoor air is treated through the unit's ductwork, requiring stable water production even under low humidity or seasonally dry and cold conditions, while also considering energy consumption and ease of operation and maintenance.

[0003] Current air-to-water technologies mainly employ two methods: cooling dehumidification and adsorption dehumidification. Cooling dehumidification uses compressor refrigeration or chilled water as a low-temperature cold source, cooling the air below the dew point through a surface cooler or evaporator to condense water. Adsorption dehumidification uses a rotary wheel to adsorb moisture from the air, then uses a high-temperature heat source for regeneration, desorption, and moisture recovery, followed by condensation in a cold section. To meet the low temperatures required for cooling dehumidification, decentralized heat pumps or centralized chiller rooms are often used for cooling; adsorption regeneration often uses electric heating or steam heating to provide high-temperature regeneration heat.

[0004] Cooling dehumidification is prone to frost or ice formation when the surface temperature of the heat exchanger is below the freezing point of water vapor, leading to decreased heat exchanger efficiency and the need for frequent defrosting. This makes it difficult to consistently achieve deep dehumidification and water production with a dew point below approximately 10°C or a moisture content below approximately 7.0 g / kg. When the inlet air moisture content is low or insufficient, relying solely on cooling dehumidification makes water production difficult or impossible. On the other hand, traditional adsorption rotors, if regenerated using electric or steam heating, require high temperatures (120-130°C) for regeneration, resulting in high energy consumption and poor economic efficiency. Coupled with a heat pump to recover condensation heat, however, faces engineering challenges related to thermal energy matching and gas path coupling.

[0005] Therefore, it is necessary to design an adsorption-type air-to-water system with a central cold source to solve the problems of difficulty in producing water under low humidity conditions, high energy consumption, and low adsorption efficiency in traditional air-to-water systems. Summary of the Invention

[0006] The technical problem to be solved by this invention is to provide an adsorption-type air-to-water system with a central cold source, which solves the problems of difficulty in producing water under low humidity conditions, high energy consumption and low adsorption efficiency of traditional air-to-water systems.

[0007] The technical problem to be solved by this invention is achieved by the following technical solution: an adsorption-type air-to-water system with a central cold source.

[0008] include

[0009] High-efficiency data center

[0010] At least one water purification unit,

[0011] The high-efficiency computer room can provide chilled water for the at least one water purification unit.

[0012] The water purification unit includes

[0013] The air entering the water purifier unit first enters the rotary regeneration air intake channel, where the air is heated.

[0014] The desorbed air enters the water production channel, where the water production channel cools and condenses the incoming air.

[0015] The rotary wheel exhaust duct discharges the air that enters the rotary wheel exhaust duct and discharges it from the water purification unit.

[0016] A dehumidifying impeller is provided, with its axis parallel to the ground. Along this axis, the impeller is divided into a regeneration side and an adsorption side by a partition. The regeneration side is located between the outlet of the impeller's regeneration air inlet channel and the inlet of the water production channel, and it can desorb the moisture adsorbed by the adsorption side into the air. The adsorption side is located between the outlet of the water production channel and the inlet of the impeller's processing air outlet channel, and it can adsorb moisture from the air transported from the water production channel.

[0017] The regeneration side air intake heating zone is located in the rotor regeneration air intake channel, and the air entering the rotor regeneration air intake channel is heated in the regeneration side air intake heating zone.

[0018] The cooling treatment zone is located in the water production channel. Air coming out from the regeneration side of the dehumidification rotor is cooled in the cooling treatment zone when it enters the water production channel.

[0019] A condensation zone is located in the water production channel. Air from the cooling treatment zone enters the condensation zone and condensation water is generated there.

[0020] A condensate collection area, wherein the condensate collection area is used to collect the condensate generated in the condensation area;

[0021] The air entering the water generator unit is first heated in the regeneration side air intake heating zone of the rotor regeneration air intake channel to increase the air temperature; then it passes through the regeneration side of the dehumidifying rotor, carrying away the moisture in the regeneration side to increase the air humidity; then it enters the water production channel, first undergoing cooling treatment in the cooling treatment zone, and then entering the condensation zone for condensation treatment to produce condensate; then it passes through the adsorption side of the dehumidifying rotor, adsorbing the moisture in the air onto the adsorption side. The dehumidifying rotor rotates continuously, carrying the adsorbed moisture from the adsorption side to the regeneration side; the air exiting from the adsorption side enters the rotor treatment air outlet channel.

[0022] Preferably, the water purification unit further includes a heat pump circuit, which includes a heat pump circuit condenser, a heat pump circuit evaporator, a heat pump circuit compressor, and refrigerant. The heat pump circuit condenser, heat pump circuit evaporator, and heat pump circuit compressor are connected in sequence through pipelines to form a circuit. The heat pump circuit compressor can drive the refrigerant to circulate in the circuit. During the circulation of the refrigerant in the circuit, the refrigerant transfers heat from the heat pump circuit evaporator to the heat pump circuit condenser.

[0023] Preferably, the heat pump loop condenser is located in the regeneration side air intake heating zone, and the refrigerant entering the heat pump loop condenser is a gaseous refrigerant. The gaseous refrigerant transfers heat to the heat pump loop condenser and becomes a liquid refrigerant. The heat pump loop condenser transfers the absorbed heat to the air entering the regeneration side air intake heating zone to heat the air.

[0024] The heat pump loop evaporator is located in the condensation zone. The refrigerant entering the heat pump loop evaporator is a liquid refrigerant. The liquid refrigerant absorbs heat from the heat pump loop evaporator and becomes the gaseous refrigerant. The heat pump loop evaporator absorbs heat from the air entering the condensation zone, thereby causing the moisture in the air in the condensation zone to condense and produce water.

[0025] Preferably, the water purification unit further includes a heat recovery circuit, which can recover sensible heat from the water purification channel to increase the outlet air temperature of the regeneration side air inlet heating zone; the heat recovery circuit includes a heat recovery circuit heater and a heat recovery circuit cooler, which are connected by pipelines, and a certain amount of working fluid is provided inside the heat recovery circuit, which can circulate inside the pipeline under the drive of pump power or under its own gravity.

[0026] Preferably, the heat recovery circuit heater is located in the regeneration side air inlet heating zone. The working fluid entering the heat recovery circuit heater is a high-temperature working fluid. The high-temperature working fluid releases heat to the heat recovery circuit heater. The heat recovery circuit heater transfers heat to the air entering the regeneration side air inlet heating zone. The working fluid exiting the heat recovery circuit heater becomes a low-temperature working fluid. The low-temperature working fluid enters the heat recovery circuit cooler.

[0027] The heat recovery loop cooler is located in the cooling zone. The heat recovery loop cooler absorbs heat from the air in the cooling zone and transfers the heat to the low-temperature working fluid. The working fluid coming out of the heat recovery loop cooler becomes the high-temperature working fluid, and the air in the cooling zone is cooled.

[0028] Preferably, the high-efficiency computer room includes a chiller, an air conditioning water pump, and multiple external cold source surface coolers. The chiller, air conditioning water pump, and multiple external cold source surface coolers are connected in sequence through pipes to form a chilled water circulation loop. The chiller can provide chilled water, which is delivered to the external cold source surface coolers through the air conditioning water pump. The external cold source surface coolers are located in the condensation zone. When the air entering the condensation zone passes through the external cold source surface coolers, it is cooled and the moisture in the air is condensed, producing condensate in the external cold source surface coolers.

[0029] Preferably, the air filter, heat recovery circuit heater, and heat pump circuit condenser are sequentially arranged in the rotor regeneration air inlet channel along the airflow direction; the heat recovery circuit cooler, external cold source surface cooler, and heat pump circuit evaporator are sequentially arranged in the water production channel along the airflow direction; and the blower and heat pump circuit compressor are sequentially arranged in the rotor processing air outlet channel along the airflow direction.

[0030] Preferably, the air filter is located at the inlet of the rotor regeneration air intake channel, and the air filter can remove pollutants from the air; the air then enters the heat recovery circuit heater of the rotor regeneration air intake channel, and the heat recovery circuit heater releases heat to the air located in the regeneration side air intake heating zone, thereby increasing the air temperature; the air then enters the heat pump circuit condenser, and the heat pump circuit condenser can heat the air located in the regeneration side air intake heating zone.

[0031] Preferably, the heat recovery loop cooler in the cooling zone can absorb heat from the air and simultaneously reduce the inlet air temperature of the external cold source surface cooler as pre-cooling; the external cold source surface cooler in the condensation zone can absorb heat from the air to condense some water vapor into liquid water; the heat pump loop evaporator in the condensation zone can further absorb heat from the air to condense most of the water vapor.

[0032] Preferably, the blower can ensure the airflow volume within the water purification unit.

[0033] Preferably, the refrigerant can flow within the heat pump circuit compressor, the heat pump circuit condenser, and the heat pump circuit evaporator. The refrigerant is compressed from low-pressure superheated gas to high-temperature and high-pressure gas by the heat pump circuit compressor. It then releases heat to the regeneration air and condenses into liquid refrigerant through the heat pump circuit condenser. After being throttled and depressurized by a throttling device, the liquid refrigerant enters the heat pump circuit evaporator to absorb heat and evaporate. It absorbs heat from the airflow in the condensation zone to achieve deep dehumidification. The evaporated superheated gas returns to the heat pump circuit compressor for circulation.

[0034] Preferably, a regulating water valve is provided at the connection point between the external cold source surface cooler and the air conditioning water pump.

[0035] Preferably, the condensate collection area is located below the external cold source surface cooler and the heat pump circuit evaporator.

[0036] The beneficial effects of this invention are:

[0037] (1) The present invention is equipped with a high-efficiency machine room, which is equipped with a chiller. The chiller can provide chilled water to the external cold source surface cooler through the air conditioning water pump. It is equipped with a dehumidifying wheel, an external cold source surface cooler, a heat pump evaporator, and a condensate collection area. The dehumidifying wheel mechanically carries the residual moisture adsorbed on the adsorption side to the regeneration side. After desorption on the regeneration side, the humidity of the regenerated air is increased. The external cold source surface cooler and the evaporator achieve progressive condensation and water separation, and can still stably separate water under low humidity intake conditions. The surface of the heat pump circuit evaporator does not need to be lowered to the freezing point, which greatly reduces the risk of freezing and improves the stability of water production.

[0038] (2) The present invention is provided with a dehumidifying rotor, a heat pump circuit, and a heat recovery heater. The medium-temperature heat released by the heat pump condenser is heat recovered or directly heated to regenerate the air to 60–70°C for the regeneration of the dehumidifying rotor. The air is deeply dehumidified by the heat pump evaporator before entering the dehumidifying rotor, which increases the adsorption load of the rotor. The dehumidifying rotor is regenerated efficiently at medium temperature, and the energy consumption is much lower than that of traditional high-temperature heating. The condensation heat of the heat pump circuit is reused, reducing the external heating source and resulting in significant energy saving.

[0039] (3) The present invention provides chilled water to the external cold source surface cooler in the high-efficiency computer room, and the chilled water is no longer limited by the dew point of the cooling and dehumidification air outlet; by setting up a dehumidification wheel, the chilled water supply temperature is increased, the energy efficiency of the high-efficiency computer room in producing chilled water is improved, and the energy consumption of the high-efficiency computer room in producing chilled water is reduced.

[0040] (4) By using a dehumidifying rotor, the moisture that is difficult or impossible to precipitate in the heat pump circuit is continuously transferred from the adsorption side to the regeneration side. Under the action of regeneration air, the moisture is desorbed into the air, thereby increasing the moisture content of the air entering the external cold source surface cooler and the heat pump circuit evaporator. This allows the moisture to be cooled and dehumidified by the external cold source surface cooler and the heat pump circuit evaporator to be prepared into water. This breaks through the limitation that the surface temperature of the heat exchanger is lower than the freezing point of water vapor during traditional cooling and dehumidification, which will cause the surface of the heat exchanger to freeze. Water can be prepared even when the moisture content of the air entering the circuit is low.

[0041] (5) The present invention is equipped with a heat recovery system, which reduces the inlet dry bulb temperature of the external cold source surface cooler, so that it processes less sensible heat and converts more cold energy into latent heat, which is beneficial for dehumidification and water production. On the other hand, it increases the inlet dry bulb temperature of the heat pump circuit condenser, reduces its output demand for regenerated heat, and is beneficial for improving the energy efficiency of the heat pump circuit. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the water purification unit structure of the present invention.

[0043] Figure 2 This is a circuit diagram of the water purification unit of the present invention.

[0044] Figure 3 This is a schematic diagram of the circuit of the high-efficiency computer room and water purification unit of the present invention.

[0045] In the diagram: 11-Heat recovery system cooler, 12-Heat recovery system heater, 21-Heat pump loop condenser, 22-Heat pump loop evaporator, 23-Heat pump loop compressor, 24-Expansion valve, 31-External cold source surface cooler, 32-High-efficiency computer room, 321-Chiller, 322-Air conditioning water pump, 323-Regulating water valve, 4-Dehumidifier impeller, 5-Blower, 61-Inlet louver, 62-Outlet louver, 63-Air filter, 64-Baffle. Detailed Implementation

[0046] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific embodiments.

[0047] Example 1

[0048] like Figures 1-3 An adsorption-type air-to-water system with a central cold source includes a high-efficiency machine room 32 and at least one water-making unit. The high-efficiency machine room 32 can provide chilled water to the water-making unit.

[0049] The water purification unit includes: a rotary regeneration air inlet duct, through which air entering the water purification unit first enters and is heated; a water purification duct, through which desorbed air enters and is cooled and condensed; a rotary treatment air outlet duct, which discharges the air entering the water purification unit; and a dehumidification rotor 4, whose axis is parallel to the ground. Along this axis, the dehumidification rotor is divided into a regeneration side and an adsorption side by a partition. The regeneration side is located between the outlet of the rotary regeneration air inlet duct and the inlet of the water purification duct, and it desorbs the moisture adsorbed on the adsorption side into the air. The adsorption side is located at the... Between the outlet of the water channel and the inlet of the rotary wheel processing air outlet channel, the adsorption side can adsorb moisture from the air transported from the water production channel; the regeneration side air inlet heating zone is located in the rotary wheel regeneration air inlet channel, where the air entering the rotary wheel regeneration air inlet channel is heated; the cooling treatment zone is located in the water production channel, where the air coming out of the regeneration side of the dehumidifying rotary wheel 4 is cooled when it enters the water production channel; the condensation zone is located in the water production channel, where the air coming out of the cooling treatment zone enters the condensation zone and condensate is generated; and the condensate collection zone is used to collect the condensate generated in the condensation zone.

[0050] The air entering the water purifier unit is first heated in the regeneration side air intake heating zone of the rotor regeneration air intake channel to increase the air temperature; then it passes through the regeneration side of the dehumidification rotor 4, where it carries away the moisture in the regeneration side to increase the air humidity; then it enters the water production channel, where it is first cooled in the cooling treatment zone, and then enters the condensation zone for condensation treatment to produce condensate; then it passes through the adsorption side of the dehumidification rotor 4, where it adsorbs the moisture in the air onto the adsorption side. The dehumidification rotor rotates continuously, carrying the adsorbed moisture from the adsorption side to the regeneration side; the air exiting from the adsorption side enters the rotor treatment outlet air channel.

[0051] The water purification unit is also equipped with a heat pump circuit, which can absorb and process the heat in the air, and condense the moisture in the air to form liquid water.

[0052] The heat pump circuit includes a heat pump circuit condenser 21, a heat pump circuit evaporator 22, a heat pump circuit compressor 23, and refrigerant. In the heat pump circuit, the heat pump circuit compressor 23 drives the refrigerant circulation, transferring heat between the heat pump circuit evaporator 22 and the heat pump circuit condenser 21.

[0053] The heat pump circuit condenser 21, heat pump circuit evaporator 22, and heat pump circuit compressor 23 are connected in sequence through pipelines to form a circuit. The heat pump circuit compressor 23 can drive the refrigerant to circulate in the circuit. During the circulation of the refrigerant in the circuit, heat is transferred from the heat pump circuit evaporator 22 to the heat pump circuit condenser 21.

[0054] The heat pump loop condenser 21 is located in the regeneration side air intake heating zone. The refrigerant entering the heat pump loop condenser 21 is gaseous refrigerant. The gaseous refrigerant transfers heat to the heat pump loop condenser 21 and becomes liquid refrigerant. The heat pump loop condenser 21 transfers the absorbed heat to the air entering the regeneration side air intake heating zone to heat the air.

[0055] The heat pump loop evaporator 22 is located in the condensation zone. The refrigerant entering the heat pump loop evaporator 22 is liquid refrigerant. The liquid refrigerant absorbs heat from the heat pump loop evaporator 22 and becomes gaseous refrigerant. The heat pump loop evaporator 22 absorbs heat from the air entering the condensation zone, thereby causing the moisture in the air in the adsorption side air intake condensation zone to condense and produce water.

[0056] The water purification unit also includes a heat recovery circuit, which can recover sensible heat from the water purification channel and increase the outlet air temperature of the regeneration side air intake heating zone. The heat recovery circuit includes a heat recovery circuit heater 12 and a heat recovery circuit cooler 11, which are connected by pipelines. A certain amount of working fluid is provided inside the heat recovery circuit, which can circulate inside the pipeline under the power of the pump or under its own gravity.

[0057] The heat recovery circuit heater 12 is located in the regeneration side air intake heating zone. The working fluid entering the heat recovery circuit heater 12 is a high-temperature working fluid. The high-temperature working fluid releases heat to the heat recovery circuit heater 12, and the heat recovery circuit heater 12 transfers heat to the air entering the regeneration side air intake heating zone. The working fluid coming out of the heat recovery circuit heater 12 becomes a low-temperature working fluid, and the low-temperature working fluid enters the heat recovery circuit cooler 11.

[0058] The heat recovery loop cooler 11 is located in the cooling zone of the water supply channel. The heat recovery loop cooler 11 absorbs heat from the air in the cooling zone and transfers the heat to the low-temperature working fluid. The working fluid exiting the heat recovery loop cooler 11 becomes a high-temperature working fluid, and the air in the cooling zone is cooled. In this embodiment, the working fluid is pure water.

[0059] The high-efficiency computer room 32 can provide additional cooling capacity. The high-efficiency computer room 32 includes a chiller 321, an air conditioning water pump 322, and multiple external cold source surface coolers 31. The chiller 321, the air conditioning water pump 322, and the multiple external cold source surface coolers 31 are connected in sequence through pipes to form a chilled water circulation loop. The chiller 321 can provide chilled water, which is transferred to the external cold source surface coolers 31 through the air conditioning water pump 322. The external cold source surface coolers 31 are located in the condensation zone of the water production channel. When the air entering the condensation zone of the water production channel passes through the external cold source surface coolers 31, it is cooled and the moisture in the air is condensed, and condensation water is generated on the surface of the external cold source surface coolers 31.

[0060] Reference Figure 1 An air filter 63, a heat recovery system heater 12, and a heat pump circuit condenser 21 are sequentially arranged along the airflow direction in the rotary regeneration air inlet channel; a heat recovery system cooler 11, an external cold source surface cooler 31, and a heat pump circuit evaporator 22 are sequentially arranged along the airflow direction in the water production channel; and a blower 5 and a heat pump circuit compressor 23 are sequentially arranged along the airflow direction in the rotary processing air outlet channel.

[0061] An air filter 63 is installed at the inlet of the rotary regeneration air intake channel. The air filter 63 can remove pollutants from the air. The air then enters the heat recovery system heater 12 in the regeneration side air intake heating zone. The heat recovery system heater 12 releases heat to the air located in the regeneration air intake channel, increasing the air temperature. The air then enters the heat pump loop condenser 21, which can heat the air.

[0062] After flowing out of the heat pump circuit condenser 21, the air enters the regeneration side of the dehumidification rotor 4, carrying away the moisture in the regeneration side of the dehumidification rotor 4 to increase the humidity content in the air. The air coming out of the regeneration side of the dehumidification rotor 4 then enters the cooling zone, where it is cooled by the heat recovery system cooler 11. The air then enters the condensation zone, where it passes sequentially through the external cold source surface cooler 31 and the heat pump circuit evaporator 22.

[0063] When air flows through the heat recovery system cooler 11, the heat recovery system cooler 11 can absorb heat from the air and reduce the air inlet temperature of the external cold source surface cooler 31; the external cold source surface cooler 31 can pre-cool the air, reduce the dry bulb temperature and condense some water vapor into liquid water; the heat pump circuit evaporator 22 can absorb heat from the air and condense most of the water vapor.

[0064] Air then enters the adsorption side of the dehumidification rotor 4, flows out from the adsorption side of the dehumidification rotor 4 and enters the adsorption side exhaust area, and is discharged from the water purification unit. A blower 5 is installed in the adsorption side exhaust area. The blower 5 can ensure the airflow speed in the water purification unit. After passing through the blower 5, the air is discharged from the water purification unit.

[0065] In this embodiment, the upper half of the dehumidification impeller 4 is the regeneration side, and the lower half is the adsorption side. After the air flows through the dehumidification impeller 4, water that is difficult or impossible to precipitate in the heat pump circuit can be continuously carried from the adsorption side of the dehumidification impeller 4 to the regeneration side, and desorbed into the regeneration outlet air under the action of the regeneration air. This can increase the moisture content of the inlet air of the external cold source surface cooler 31 and the heat pump circuit evaporator 22, ensuring that the water can be prepared into cooling water under the action of the external cold source surface cooler 31 and the heat pump circuit evaporator 22.

[0066] In this embodiment, the condensate collection area is located below the external cold source surface cooler 31 and the heat pump loop evaporator 22. When air enters the surface of the external cold source surface cooler 31, the air is condensed, and significant condensation occurs in the confluence of air, which is then discharged into the condensate collection area via a water collection tray. When air enters the heat pump evaporator 22, it is condensed, producing a large amount of condensate, which is then collected in the condensate collection area via a bottom water collection tray. In this embodiment, the water collection tray is equipped with a drainage slope, a U-bend to prevent backflow, a filter screen, and a drain pipe. The condensate flows through pipes into a product water tank or a subsequent water treatment unit.

[0067] In this embodiment, the high-efficiency computer room 32 is equipped with a chiller 321 and an air conditioning water pump 322. The air conditioning water pump 322 is connected to multiple external cold source surface coolers 31 through pipelines. A regulating water valve 323 is provided at the connection between the external cold source surface cooler 31 and the air conditioning water pump 322. In this embodiment, the regulating water valve 323 is located on the pipeline connecting the air conditioning water pump 322 to the multiple external cold source surface coolers 31.

[0068] The chiller unit 321 consists of a compressor, evaporator, condenser, and expansion valve, injecting cooling capacity into the chilled water circuit. The air conditioning water pump 322 transports chilled water from the machine room to the supply inlet of the external chilled water source surface cooler 31 for each unit. A regulating valve 323, an adjustable valve located at the water-side inlet of the external chilled water source surface cooler 31 for each water purification unit, allows for precise control of the water flow through each surface cooler 31 according to the unit's needs. The external chilled water source surface cooler 31 is located within the water purification unit.

[0069] In this embodiment, the chiller 321 can provide water at 10-12°C. After air passes through the external cold source surface cooler 31, the internal water temperature of the cold source surface cooler 31 rises. In conventional chillers, the temperature of the chilled water provided is around 7°C. In this embodiment, the required temperature of the chilled water is 10-12°C. Under the premise of meeting the water dew point target, the supply water temperature should be increased as much as possible to save energy.

[0070] In this embodiment, the refrigerant can flow within the heat pump circuit compressor 23, the heat pump circuit condenser 21, and the heat pump circuit evaporator 22.

[0071] Specifically, the heat pump circuit is a closed refrigerant circuit, and its main components, in order of refrigerant flow, are: heat pump circuit compressor 23, heat pump circuit condenser 21, expansion valve 24, heat pump circuit evaporator 22, and finally return to heat pump circuit compressor 23. Piping is installed in the heat pump circuit, allowing the refrigerant to flow within it and complete a two-phase gas-liquid cycle within the circuit.

[0072] The refrigerant entering the heat pump circuit compressor 23 is a low-pressure superheated gas. The heat pump circuit compressor 23 compresses this low-pressure superheated gas into a high-temperature, high-pressure gas.

[0073] High-temperature, high-pressure gas is discharged from the heat pump circuit compressor 23 and enters the heat pump circuit condenser 21 through the exhaust pipe. Inside the heat pump circuit condenser 21, the refrigerant, as a gaseous phase, is cooled and condensed into a liquid state within the pipes, simultaneously releasing a large amount of condensation heat into the air. After condensation is complete, the refrigerant leaves the heat pump circuit condenser 21 in a high-pressure liquid state.

[0074] Liquid refrigerant enters expansion valve 24, which can adjust the flow rate so that the refrigerant entering the evaporator is throttled into a low-pressure gas-liquid two-phase mixture at the set evaporation pressure.

[0075] A low-pressure, two-phase refrigerant enters the heat pump loop evaporator 22. Within the evaporator 22, the refrigerant absorbs heat from the airflow and completely evaporates into a low-pressure superheated gas, thus achieving deep cooling and dehumidification of the airflow. A water collection tray is installed at the bottom of the heat pump loop evaporator 22 to collect condensate.

[0076] The superheated gas from the outlet of the heat pump circuit evaporator 22 returns to the heat pump circuit compressor 23 via pipeline to complete the cycle.

[0077] The specific working principle of this embodiment is as follows:

[0078] Air enters the water purification unit through the top air inlet louvers 61, and is filtered by the air filter 63, removing solid particles. The dry-bulb temperature and absolute humidity of the air remain essentially unchanged. The air then enters the heat recovery heater 12, where the working fluid releases the recovered heat into the air. At this point, the dry-bulb temperature of the air rises, and the relative humidity decreases. The preheated air from the heat recovery heater 12 then enters the heat pump loop condenser 21. The high-temperature refrigerant releases heat and condenses in the heat pump loop condenser 21, transferring the heat from the refrigerant to the air. The air temperature further rises to the temperature set by the dehumidification rotor 4, which in this embodiment is 60-70℃. The relative humidity of the air further decreases, while the absolute humidity remains essentially unchanged.

[0079] Air enters the regeneration side of the dehumidifying rotor 4. The hot regeneration air passes through the dehumidifying rotor 4, causing it to desorb the moisture previously adsorbed from the adsorption side. At this point, the absolute humidity of the air increases, and due to the heat absorbed by evaporation or the removal of latent heat by phase change, the temperature of the regeneration outlet air decreases relatively. After desorption, the regeneration outlet air has a high humidity and a lower temperature. The air then enters the cooling zone from the rotor's regeneration inlet channel, passing through the dehumidifying rotor 4.

[0080] Air passes through the heat recovery system cooler 11 in the cooling zone, where it is pre-cooled. The heat absorbed by the cooler 11 from the air is exchanged with the working fluid of the heat recovery system, transferring some of the sensible heat to the fluid. This causes the air temperature to drop, reducing the inlet dry-bulb temperature of the external cold source surface cooler 31. Simultaneously, the working fluid transfers heat from the cooler 11 to the heater 12 of the heat recovery system.

[0081] After being pre-cooled by the heat recovery system cooler 11, the air enters the external cold source surface cooler 31 in the condensation zone. The dry-bulb temperature of the air decreases, some moisture condenses, and the absolute humidity decreases. The condensate in the external cold source surface cooler 31 flows into the condensate collection area via a collection pan. After the air passes through the external cold source surface cooler 31, the internal moisture temperature rises, and the heated moisture flows back to the chiller unit 321 through the chilled water circulation loop.

[0082] The air then flows downwards into the heat pump loop evaporator 22 within the condensation zone. After entering the evaporator 22, the air further decreases to the designed dew point. At this point, a large amount of moisture in the air condenses into condensate at the evaporator 22. The water condensed in the evaporator 22 is channeled into the condensate collection zone through a bottom water collection pan. The heat absorbed by the evaporator 22 from the air is transferred to the heat pump loop condenser 21 via refrigerant, and the condenser 21 then provides the heat to the regeneration side.

[0083] After passing through the heat pump loop evaporator 22, the air passes through the adsorption side of the lower half of the dehumidification rotor 4. The adsorption side adsorbs residual moisture from the air exiting the water production channel. During adsorption, which is exothermic, the air temperature passing through the dehumidification rotor 4 slightly increases. The air exiting the adsorption side is the treated exhaust air, which is delivered by the blower 5. The exhaust air temperature is higher than that at the outlet of the heat pump loop evaporator 22, and the moisture content is significantly reduced. Because the dehumidification rotor 4 rotates continuously, it carries the moisture adsorbed on the adsorption side to the regeneration side.

[0084] After passing through the dehumidification rotor 4, the air enters the adsorption-side exhaust zone. An air supply fan 5 is installed inside the adsorption-side exhaust zone to maintain the airflow velocity within the water purification unit. The air supply fan 5 ensures that the treated air is discharged at the designed air volume.

[0085] Equipped with a high-efficiency machine room, the machine room houses a chiller unit that provides chilled water to the external cold source surface cooler via an air conditioning water pump. The system includes a dehumidification impeller, an external cold source surface cooler, a heat pump evaporator, and a condensate collection area. The dehumidification impeller mechanically carries residual or bound moisture from the adsorption side to the regeneration side. After desorption on the regeneration side, the combined gas moisture content increases, allowing for progressive condensation and water separation between the external cold source surface cooler and the evaporator. This ensures stable water separation even under low-humidity intake air conditions. The evaporator surface in the heat pump loop does not need to be lowered to the freezing point, significantly reducing the risk of icing and improving water production stability. The system also includes a dehumidification impeller, a heat pump loop, and a heat recovery system. The heat pump condenser releases medium-temperature heat, which is then recovered or directly used to regenerate air to 60–70°C for dehumidification rotor regeneration. Before entering the dehumidification rotor, the air undergoes deep dehumidification via the heat pump evaporator, increasing the rotor's adsorption load and enabling efficient regeneration at medium temperatures, resulting in significantly lower energy consumption than traditional high-temperature heating. The condensation heat from the heat pump circuit is reused, reducing the need for external heating sources and significantly improving energy efficiency. The high-efficiency machine room provides chilled water to the external cooling source's surface cooler, and the chilled water is no longer affected by the dew point of the cooling and dehumidification air outlet. Limitations: By setting up a dehumidification impeller, the chilled water supply temperature is increased, improving the energy efficiency of chilled water production in high-efficiency equipment rooms and reducing energy consumption. The dehumidification impeller continuously transfers moisture that is difficult or impossible to precipitate from the heat pump loop from the adsorption side to the regeneration side. Under the action of regeneration air, it desorbs into the air, increasing the moisture content of the inlet air of the external cold source surface cooler and the heat pump loop evaporator. This allows the moisture to be cooled and dehumidified by the external cold source surface cooler and the heat pump loop evaporator to produce water, overcoming the limitation that traditional cooling dehumidification methods cause icing on the heat exchanger surface when the surface temperature is below the freezing point of water vapor. Water can be produced even when the inlet air moisture content is low. A heat recovery system is installed to reduce the inlet dry-bulb temperature of the external cold source surface cooler, resulting in less sensible heat being processed and more cold energy being converted into latent heat, which is beneficial for dehumidification and water production. On the other hand, it increases the inlet dry-bulb temperature of the heat pump loop condenser, reducing its demand for regeneration heat output and improving the energy efficiency of the heat pump loop.

[0086] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adsorption-type air-to-water system with a centralized cold source, characterized in that: include High-efficiency data center At least one water purification unit, The high-efficiency computer room can provide chilled water for the at least one water purification unit. The water purification unit includes The air entering the water purifier unit first enters the rotary regeneration air intake channel, where the air is heated. The water production channel is used to cool and condense the desorbed air. The rotary wheel exhaust duct discharges the air that enters the rotary wheel exhaust duct and discharges it from the water purification unit. A dehumidifying impeller, the axis of which is set parallel to the ground, is divided into a regeneration side and an adsorption side by a partition along the axis of the dehumidifying impeller. The regeneration side is located between the outlet of the regeneration air inlet channel and the inlet of the water production channel. The regeneration side can desorb the moisture adsorbed by the adsorption side into the air. The adsorption side is located between the outlet of the water production channel and the inlet of the rotary processing air outlet channel, and the adsorption side can adsorb moisture in the air transported from the water production channel. The regeneration side air intake heating zone is located in the rotor regeneration air intake channel, and the air entering the rotor regeneration air intake channel is heated in the regeneration side air intake heating zone. The cooling treatment zone is located in the water production channel. Air coming out from the regeneration side of the dehumidification rotor is cooled in the cooling treatment zone when it enters the water production channel. A condensation zone is located in the water production channel. Air from the cooling treatment zone enters the condensation zone and condensation water is generated there. A condensate collection area, wherein the condensate collection area is used to collect the condensate generated in the condensation area; Air entering the water purification unit is first heated in the regeneration side air intake heating zone of the rotary regeneration air intake channel to increase its temperature; then it passes through the regeneration side of the dehumidification rotor, carrying away moisture to increase humidity; then it enters the water purification channel, first undergoing cooling in the cooling zone, then condensing in the condensation zone to produce condensate; then it passes through the adsorption side of the dehumidification rotor, adsorbing moisture from the air onto the adsorption side. The dehumidification rotor rotates continuously, carrying the adsorbed moisture from the adsorption side to the regeneration side; finally, the air exiting the adsorption side enters the rotary processing air outlet channel. The water purification unit also includes a heat pump circuit, which includes a heat pump circuit condenser, a heat pump circuit evaporator, a heat pump circuit compressor, and refrigerant. The heat pump circuit condenser, heat pump circuit evaporator, and heat pump circuit compressor are connected in sequence through pipelines to form a circuit. The heat pump circuit compressor can drive the refrigerant to circulate in the circuit. During the circulation of the refrigerant in the circuit, the refrigerant transfers heat from the heat pump circuit evaporator to the heat pump circuit condenser. The heat pump loop condenser is located in the regeneration side air intake heating zone. The refrigerant entering the heat pump loop condenser is a gaseous refrigerant. The gaseous refrigerant transfers heat to the heat pump loop condenser and becomes a liquid refrigerant. The heat pump loop condenser transfers the absorbed heat to the air entering the regeneration side air intake heating zone to heat the air. The heat pump loop evaporator is located in the condensation zone. The refrigerant entering the heat pump loop evaporator is a liquid refrigerant. The liquid refrigerant absorbs heat from the heat pump loop evaporator and becomes the gaseous refrigerant. The heat pump loop evaporator absorbs heat from the air entering the condensation zone, thereby causing the moisture in the air in the condensation zone to condense and produce water. The water purification unit also includes a heat recovery circuit, which can recover sensible heat from the water purification channel to increase the outlet air temperature of the regeneration side air inlet heating zone; the heat recovery circuit includes a heat recovery circuit heater and a heat recovery circuit cooler, which are connected by pipelines; a certain amount of working fluid is provided inside the heat recovery circuit, which can circulate inside the pipeline under the power of a pump or under its own gravity. The heat recovery circuit heater is located in the regeneration side air intake heating zone. The working fluid entering the heat recovery circuit heater is a high-temperature working fluid. The high-temperature working fluid releases heat to the heat recovery circuit heater. The heat recovery circuit heater transfers heat to the air entering the regeneration side air intake heating zone. The working fluid exiting the heat recovery circuit heater becomes a low-temperature working fluid. The low-temperature working fluid enters the heat recovery circuit cooler. The heat recovery loop cooler is located in the cooling treatment zone. The heat recovery loop cooler absorbs heat from the air in the cooling treatment zone and transfers the heat to the low-temperature working fluid. The working fluid coming out of the heat recovery loop cooler becomes the high-temperature working fluid, and the air in the cooling treatment zone is cooled. The high-efficiency computer room includes a chiller, an air conditioning water pump, and multiple external cold source surface coolers. The chiller, air conditioning water pump, and multiple external cold source surface coolers are connected in sequence through pipes to form a chilled water circulation loop. The chiller can provide chilled water, which is delivered to the external cold source surface coolers through the air conditioning water pump. The external cold source surface coolers are located in the condensation zone. When the air entering the condensation zone passes through the external cold source surface coolers, it is cooled and the moisture in the air is condensed, producing condensate water in the external cold source surface coolers.

2. The adsorption-type air-to-water system with a central cold source according to claim 1, characterized in that: An air filter, a heat recovery circuit heater, and a heat pump circuit condenser are sequentially arranged along the airflow direction in the rotary regeneration air inlet channel; the heat recovery circuit cooler, an external cold source surface cooler, and a heat pump circuit evaporator are sequentially arranged along the airflow direction in the water production channel; and a blower and a heat pump circuit compressor are sequentially arranged along the airflow direction in the rotary processing air outlet channel.

3. The adsorption-type air-to-water system with a supporting centralized cold source according to claim 2, characterized in that: The air filter is installed at the inlet of the rotary regeneration air intake channel, and the air filter can remove pollutants from the air; The air then enters the heat recovery circuit heater in the regeneration air intake channel of the rotor, which releases heat to the air located in the regeneration side air intake heating zone, thereby increasing the air temperature. The air then enters the heat pump circuit condenser, which can further heat the air located in the regeneration side air intake heating zone.

4. The adsorption-type air-to-water system with a centralized cold source according to claim 3, characterized in that: The heat recovery loop cooler in the cooling zone can absorb heat from the air and simultaneously reduce the inlet air temperature of the external cold source surface cooler as pre-cooling; the external cold source surface cooler in the condensation zone can absorb heat from the air to condense some water vapor into liquid water; the heat pump loop evaporator in the condensation zone can further absorb heat from the air to condense most of the water vapor.

5. The adsorption-type air-to-water system with a centralized cold source according to claim 4, characterized in that: The blower ensures the airflow volume within the water purification unit.

6. The adsorption-type air-to-water system with a centralized cold source according to claim 5, characterized in that: The refrigerant can flow within the heat pump circuit compressor, the heat pump circuit condenser, and the heat pump circuit evaporator. The refrigerant is compressed from low-pressure superheated gas to high-temperature and high-pressure gas by the heat pump circuit compressor. It releases heat to the regeneration air and condenses into liquid refrigerant through the heat pump circuit condenser. After the liquid refrigerant is throttled and depressurized by the throttling device, it enters the heat pump circuit evaporator to absorb heat and evaporate. It absorbs heat from the airflow in the condensation zone to achieve deep dehumidification. The evaporated superheated gas returns to the heat pump circuit compressor for circulation.

7. The adsorption-type air-to-water system with a centralized cold source according to claim 6, characterized in that: A regulating water valve is provided at the connection point between the external cold source surface cooler and the air conditioning water pump.

8. The adsorption-type air-to-water system with a central cold source according to claim 7, characterized in that: The condensate collection area is located below the external cold source surface cooler and the heat pump circuit evaporator.

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