Air conditioner condensate water two-stage recovery evaporative cooling system

Abstract

The utility model discloses an air conditioner condensate water two-stage recovery evaporative cooling system which comprises an indoor unit and an outdoor unit. The indoor unit comprises an indoor unit shell, an indoor unit air outlet is formed in the side wall of one side of the indoor unit shell, an evaporator, an evaporator water pan and an indoor unit fan are arranged in the indoor unit shell, the evaporator water pan is located below the evaporator, and the indoor unit fan is located at the indoor unit air outlet. The evaporator communicates with the outdoor unit through a refrigerant pipeline I and a refrigerant pipeline II. The evaporator water pan is communicated with the outdoor unit through a condensate water pipeline. According to the system, a special condensate water recycling and cooling system is designed, so that condensate water can effectively take away heat on the surface of the condenser, the condensation temperature is reduced, the refrigeration efficiency of the air conditioning system in a high-temperature environment is improved, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning system technology, specifically relating to a two-stage evaporative cooling system for air conditioning condensate recovery. Background Technology

[0002] In recent years, global temperatures have shown a continuous upward trend, posing a severe challenge to the operation of building air conditioning systems. Under hot weather conditions, air conditioning systems need to operate for extended periods and at high loads to meet the cooling needs of indoor occupants, undoubtedly further exacerbating energy consumption. At the same time, the cooling efficiency of traditional air conditioning outdoor units decreases significantly in high-temperature environments. This is mainly because the outdoor unit's condenser is affected by the high-temperature air during heat dissipation, leading to an increase in condensation temperature and a higher pressure ratio in the refrigeration cycle. This, in turn, increases the compressor's power consumption and reduces cooling capacity. This not only wastes energy but also increases users' electricity costs and places enormous pressure on energy supply and environmental protection.

[0003] During air conditioning operation, water vapor in the indoor air condenses into liquid water, known as condensate, when it encounters the cold surface of the evaporator. Normally, this condensate is directly discharged outdoors through drain pipes, without being effectively utilized. However, condensate has a low temperature and high latent heat, representing a potential cooling resource. It is estimated that a typical household air conditioner produces approximately 0.5-1 liters of condensate per hour during cooling operation, with a temperature generally between 10℃ and 20℃, containing a considerable amount of cooling capacity. If this condensate could be properly recovered and used to cool the outdoor unit's condenser, it would not only improve the condenser's heat dissipation efficiency and reduce the air conditioning system's energy consumption, but also achieve resource utilization of the condensate, reducing its environmental impact. Utility Model Content

[0004] The purpose of this invention is to provide a two-stage condensate recovery and evaporative cooling system for air conditioning. By designing a specialized condensate recovery and cooling system, the condensate can effectively remove heat from the surface of the condenser, reduce the condensation temperature, thereby improving the cooling efficiency of the air conditioning system in high-temperature environments and reducing energy consumption.

[0005] The technical solution adopted in this utility model is a two-stage evaporative cooling system for air conditioning condensate, including an indoor unit and an outdoor unit.

[0006] The indoor unit includes an indoor unit casing, an indoor unit air outlet is provided on one side wall of the indoor unit casing, and an evaporator, an evaporator drip tray and an indoor unit fan are provided inside the indoor unit casing. The evaporator drip tray is located below the evaporator and the indoor unit fan is located at the indoor unit air outlet.

[0007] The evaporator is connected to the outdoor unit via refrigerant pipe I and refrigerant pipe II respectively; the evaporator drip tray is connected to the outdoor unit via condensate pipe.

[0008] The present invention is further characterized in that:

[0009] The condensate pipe is equipped with an evaporator drip tray outlet filter.

[0010] Refrigerant pipe I is equipped with refrigerant pipe valve I;

[0011] Refrigerant pipe II is equipped with refrigerant pipe valve II;

[0012] A condensate pipe valve is installed on the condensate pipe.

[0013] The outdoor unit includes an outdoor unit casing, on which an outdoor unit air inlet and an outdoor unit air outlet are respectively provided on two opposite side walls; inside the outdoor unit casing, in the direction of air flow, a direct evaporative cooling device, a combined evaporative cooling and direct cooling device, and an outdoor unit fan are arranged in sequence; the direct evaporative cooling device is connected to the combined evaporative cooling and direct cooling device.

[0014] A solar power supply device is also installed on the top of the outdoor unit casing, and the solar power supply device is connected to the combined evaporative cooling and direct cooling device;

[0015] It also includes a condensate drain pipe connected to a combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray via a condensate pipe.

[0016] The combined evaporative cooling and direct cooling device is connected to the evaporator via refrigerant pipe I and refrigerant pipe II.

[0017] The direct evaporative cooling device includes, from top to bottom, a wet curtain water distribution device, an evaporative cooling wet curtain, and a wet curtain water collection tray; the wet curtain water collection tray is connected to the evaporative cooling and direct cooling combined device; the wet curtain water distribution device is connected to the evaporator water collection tray through a condensate pipe.

[0018] The combined evaporative cooling and direct cooling device includes, from top to bottom, a condenser spray device, a condenser, and a condenser water collection pan; it also includes a condensate discharge pipe connected to the condenser water collection pan; it further includes a secondary condensate recovery pipe, through which the wet curtain water collection pan is connected to the condenser spray device; a water pump is installed on the secondary condensate recovery pipe; and a solar power supply device is connected to the water pump, providing power to the water pump.

[0019] The condenser is connected to the evaporator through refrigerant pipe I and refrigerant pipe II.

[0020] A water level detector is installed in the water receiving tray of the wet curtain. The solar power supply device is connected to the water level detector and supplies power to the water level detector.

[0021] The water level detector is a radar water level gauge, model DX-WLX-2; the water pump model is CSP48180XW.

[0022] The water level detector is connected to the water pump, and the water pump can start or stop according to the water level signal sent by the water level detector according to preset requirements.

[0023] The condensate drain pipe is equipped with a condensate outlet valve for the condensate drain pan.

[0024] The beneficial effects of this utility model are:

[0025] (1) The air conditioning condensate recovery evaporative cooling system of this utility model adopts a condensate recovery system, which recovers the low-temperature condensate generated by the indoor unit evaporator and uses it after two evaporative cooling processes and direct contact with the condenser, and then uses it on the outdoor condenser. This effectively reduces the condenser temperature, increases the condenser heat exchange efficiency, improves the overall cooling efficiency, reduces operating costs, saves electricity for users, and also reduces the pressure on the environment, which has a positive effect on environmental protection.

[0026] (2) In the dual-stage evaporative cooling system for air conditioning condensate, a wet curtain is first installed on the air inlet side of the outdoor unit, and a water collection tray is installed under the wet curtain. After the low-temperature condensate passes through the wet curtain, the wet curtain absorbs the low-temperature condensate and hot air for the first evaporative cooling. The air and water temperatures are reduced, which improves the heat exchange efficiency of the air and can more effectively remove the heat from the condenser, thereby improving the working efficiency of the condenser.

[0027] (3) The dual-stage evaporative cooling system for air conditioning condensate is equipped with a condenser spray device. The condensate that has been evaporated and cooled by the wet curtain is collected in the wet curtain water receiving tray and pumped by a small water pump to the condenser spray device. The condensate is sprayed directly onto the condenser. The low-temperature condensate comes into direct contact with the condenser for heat exchange, quickly removing the heat from the condenser. The low-temperature air after passing through the wet curtain comes into direct contact with the second batch of recovered condensate again for evaporative cooling. The air temperature drops again, removing the heat from the condenser more efficiently, increasing the heat dissipation efficiency of the condenser and improving the overall cooling efficiency.

[0028] (4) The air conditioning condensate double-stage recovery evaporative cooling system of this utility model is equipped with a solar power supply device, which supplies power to the water level detector and small water pump. Using solar power does not increase the user's power consumption, and using solar power will not cause pollution to the environment, which is beneficial to environmental protection.

[0029] (5) In the dual-stage recovery evaporative cooling system for air conditioning condensate of this utility model, a water level detector is installed in the wet curtain water receiving tray. The water level detector has a controller that is linked with a small water pump. The water level detector is model (DX-WLX-2), and the water pump is model (CSP48180XW). When the water level detector detects that the water level has reached a certain height, it sends a working signal to the water pump, and the water pump starts to work. When the water level detector detects that the water level has dropped to a certain height, it sends a stop working signal to the water pump, and the small water pump stops working. The water level detection system can effectively control the water pump running time, avoid the small water pump from running dry, and improve the working efficiency of the water pump and the spray system.

[0030] (6) The dual-stage evaporative cooling system for air conditioning condensate recovery of this utility model recovers the condensate generated during the operation of the air conditioner and combines evaporative cooling and direct spraying to cool the outdoor unit condenser. By designing a special condensate recovery and cooling system, the condensate can effectively remove heat from the surface of the condenser, reduce the condensation temperature, thereby improving the cooling efficiency of the air conditioning system in high-temperature environments and reducing energy consumption. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the dual-stage evaporative cooling system for air conditioning condensate recovery according to this utility model.

[0032] In the diagram: 1. Indoor unit air outlet, 2. Indoor unit fan, 3. Evaporator, 4. Refrigerant pipe valve I, 5. Refrigerant pipe valve II, 6. Condensate pipe valve, 7. Evaporator drip tray, 8. Evaporator drip tray outlet filter, 9. Refrigerant pipe I, 10. Refrigerant pipe II, 11. Condensate pipe, 12. Outdoor unit fan, 13. Outdoor unit air outlet, 14. Outdoor unit air inlet, 15. Condensate recovery system interface, 16. Evaporative cooling pad distribution device, 17. 18. Evaporative cooling pad, 19. Wet pad water tray, 20. Wet pad water tray outlet interface, 21. Water level detector, 22. Water pump, 23. Solar power supply device, 24. Power supply line, 25. Condenser spray device, 26. Condenser, 27. Condenser water tray, 28. Condenser water tray outlet condensate pipe valve, 29. Condenser water tray outlet interface, 30. Secondary condensate recovery pipe, 31. Condensate discharge pipe, 32. Indoor unit casing, 33. Outdoor unit casing;

[0033] 16-1. First water distribution pipe; 16-2. First nozzle; 16-3. Connecting pipe;

[0034] 24-1. Second water distribution pipe; 24-2. Second nozzle. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0036] This utility model provides a two-stage evaporative cooling system for air conditioning condensate recovery, such as... Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0037] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0038] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0039] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11. The filter device 8 is a pre-filter for the water pipe.

[0040] Refrigerant pipe valve I4 is installed on refrigerant pipe I9;

[0041] Refrigerant pipe valve II5 is installed on refrigerant pipe II10;

[0042] A condensate pipe valve 6 is installed on the condensate pipe 11.

[0043] The outdoor unit includes an outdoor unit housing 32, on which an outdoor unit air inlet 14 and an outdoor unit air outlet 13 are respectively provided on two opposite side walls; inside the outdoor unit housing 32, a direct evaporative cooling device, an evaporative cooling and direct cooling combined device and an outdoor unit fan 12 are arranged in sequence according to the air flow direction; the direct evaporative cooling device is connected to the evaporative cooling and direct cooling combined device.

[0044] A solar power supply device 22 is also installed on the top of the outdoor unit casing 32, and the solar power supply device 22 is connected to the evaporative cooling and direct cooling combined device;

[0045] It also includes a condensate drain pipe 30 connected to a combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray 7 via a condensate pipe 11.

[0046] The combined evaporative cooling and direct cooling device is connected to the evaporator 3 via refrigerant pipe I9 and refrigerant pipe II10.

[0047] The direct evaporative cooling device includes a wet curtain water distribution device 16, an evaporative cooling wet curtain 17, and a wet curtain water receiving tray 18 arranged sequentially from top to bottom; the wet curtain water receiving tray 18 is connected to the evaporative cooling and direct cooling combined device; the wet curtain water distribution device 16 is connected to the evaporator water receiving tray 7 through a condensate pipe 11.

[0048] The combined evaporative cooling and direct cooling device includes a condenser spray device 24, a condenser 25, and a condenser water receiving pan 26 arranged sequentially from top to bottom; it also includes a condensate discharge pipe 30, which is connected to the condenser water receiving pan 26; it also includes a secondary condensate recovery pipe 29, through which the wet curtain water receiving pan 18 is connected to the condenser spray device 24; a water pump 21 is installed on the secondary condensate recovery pipe 29; and a solar power supply device 22 is connected to the water pump 21, which supplies power to the water pump 21.

[0049] The condenser 25 is connected to the evaporator 3 through refrigerant pipe I9 and refrigerant pipe II10.

[0050] A water level detector 20 is installed in the wet curtain water receiving tray 18. A solar power supply device 22 is connected to the water level detector 20 and supplies power to the water level detector 20.

[0051] Water level detector 20 is a radar water level gauge, model DX-WLX-2; water pump 21 is model CSP48180XW.

[0052] The water level detector 20 is connected to the water pump 21, and the water pump 21 can start or stop according to the water level signal sent by the water level detector 20 according to preset requirements.

[0053] A condensate drain pipe 30 is equipped with a condensate outlet condensate valve 27.

[0054] The condensate is recycled twice through the wet curtain water distribution device 16, the wet curtain water receiving tray 18, the water pump 21, and the condenser spray device 24.

[0055] The hot air is cooled twice by evaporative cooling pad 17 and condenser spray device 24. The cooled air carries away the heat from the condenser, and the low-temperature condensate sprayed by condenser spray device 24 can also directly carry away some of the heat from the condenser.

[0056] The air conditioner condensate flows from the evaporator drip tray 7 under the evaporator 3 of the indoor unit, first through the condensate pipe 11, and then through the water distribution device 16 to evenly spray the condensate onto the evaporative cooling pad 17.

[0057] Air conditioner condensate is generated from the indoor unit evaporator 3 and flows into the evaporator drip tray 7 under gravity. One end of the condensate pipe 11 is connected to the evaporator drip tray outlet filter device 8, and the other end of the condensate pipe 11 is connected to the wet curtain condensate inlet 15. Since the indoor unit is higher than the outdoor unit, under gravity, the condensate flows through the condensate pipe 11 from the evaporator drip tray 7 into the wet curtain condensate inlet 15, completing the initial recovery of condensate.

[0058] A condensate pipe valve 6 is also installed on the condensate pipe 11 for easy maintenance. Refrigerant pipes I 9 and II 10 are respectively equipped with refrigerant pipe valves I 4 and II 5 for easy maintenance.

[0059] The wet curtain water supply device 16 includes a first water distribution pipe 16-1, a plurality of first nozzles 16-2 are provided on the first water distribution pipe 16-1, and a connecting pipe 16-3 is also connected to the first water distribution pipe 16-1. A condensate recovery system interface 15 is provided on the connecting pipe 16-3. The indoor condensate pipe 11 is connected to the condensate recovery system interface 15 to introduce condensate into the wet curtain water supply device 16. Under the action of gravity, the wet curtain water supply device 16 sprays the condensate onto the wet curtain.

[0060] The condenser spray device 24 includes a second water distribution pipe 24-1, on which a plurality of second nozzles 24-2 are provided, and the second water distribution pipe 24-1 is connected to the secondary condensate recovery pipe 29.

[0061] When there is water in the wet curtain, outdoor air enters the evaporative cooling wet curtain 17 through the outdoor unit air inlet 14. The air and water on the evaporative cooling wet curtain 17 undergo direct evaporative cooling, and the temperature of both the air and water will decrease. After passing through the evaporative cooling wet curtain 17, the air continues to flow towards the condenser 25, and the water is collected in the wet curtain water collection tray 18 after passing through the evaporative cooling wet curtain 17.

[0062] The solar power supply device 22 is installed at an angle above the outdoor unit, facing a location with more solar radiation. The solar power supply device converts solar energy into electrical energy, which is then transmitted to the water level detector 20 and the water pump 21 through the power supply line 23 to complete the power supply for the water level detector 20 and the water pump 21. This part of the electrical energy is clean energy, which is environmentally friendly and does not consume the user's electrical energy, thus not bringing additional electricity burden to the user.

[0063] When the water level in the wet curtain water receiving tray 18 reaches a certain height, the water level detector 20 sends a signal to the water pump 21, which then starts working. The water pump 21 draws the water from the wet curtain water receiving tray out of the water collection tray outlet 19 and sprays it out from the condenser spray device 24 above the condenser 25 through the secondary condensate recovery pipe 29. The water is sprayed directly onto the condenser 25, where the low-temperature water first comes into direct contact with the condenser 25 for heat exchange, causing the temperature of the condenser 25 to decrease. After the air passes through the wet curtain in front and is cooled down, it passes through the condenser 25 again, further reducing the temperature of the condenser 25.

[0064] A condenser water collection pan 26 is installed below the condenser. The condensate that has been used twice will flow out from the outlet 28 of the condenser water collection pan through the condensate discharge pipe 30. A valve 27 is installed on the condensate discharge pipe 30.

[0065] The model of the solar power supply device 22 is LR6-60-285M.

[0066] This utility model relates to a dual-stage evaporative cooling system for air conditioning condensate recovery. While ensuring that the user's power consumption is not increased, it maximizes the recycling and utilization of condensate generated by the air conditioner. The recovered condensate is cooled by evaporative cooling and direct spraying, which significantly improves the heat exchange efficiency of the condenser and enhances the cooling efficiency of the air conditioner.

[0067] System workflow: Air conditioning condensate is generated from the surface of the indoor unit evaporator 3 and flows into the evaporator drip tray 7 under gravity. It then passes through the evaporator drip tray outlet filter device 8 and the condensate pipe 11. The condensate pipe 11 is connected to the condensate recovery system interface 15, which is connected to the wet curtain water distribution device 16. The first batch of recovered condensate is evenly sprayed onto the evaporative cooling wet curtain 17 (made of plant fiber material) under gravity through the wet curtain water distribution device 16. Outdoor hot air enters the outdoor unit through the outdoor unit air inlet 14. When the hot air passes through the evaporative cooling wet curtain 17, the air and the recovered condensate on the evaporative cooling wet curtain 17 evaporate. The temperature of the cooled hot air and the temperature of the condensate decrease simultaneously, completing the first recycling of condensate.

[0068] The condensate from the first evaporative cooling process is collected by gravity in the evaporative cooling pad 18, which is located below the evaporative cooling pad 17. The evaporative cooling pad is equipped with a water level detector 20, which contains a controller. When the water level reaches a certain height, the water level detector 20 sends a working signal to the water pump 21 via internal wiring. The condensate in the evaporative cooling pad 18 is then transported through the evaporative cooling pad outlet 19 to the condenser spray device 24 via the secondary condensate recovery pipe 29. The condenser spray device 24 then sprays the condensate onto the condenser 25 of the outdoor unit. The condensate directly contacts the condenser 25, and the low-temperature condensate directly carries away some of the heat from the condenser, completing the second condensate recycling. The low-temperature air, cooled by the evaporative cooling pad 17, also directly contacts the condenser 25, carrying away the heat dissipated by the condenser 25. The air that has completed heat exchange is then discharged by the fan 12 through the outdoor unit outlet 13.

[0069] The condensate that has completed the second recycling process flows into the condenser water collection pan 26 below the condenser 25 under the action of gravity, and is then discharged to the outside through the condensate discharge pipe 30 connected to the outlet interface 28 of the condenser water collection pan. A valve 27 is installed on the condensate discharge pipe 30 for easy maintenance.

[0070] Example 1

[0071] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0072] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0073] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0074] Example 2

[0075] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0076] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0077] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0078] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11.

[0079] Example 3

[0080] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0081] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0082] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0083] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11.

[0084] Refrigerant pipe valve I4 is installed on refrigerant pipe I9;

[0085] Refrigerant pipe valve II5 is installed on refrigerant pipe II10;

[0086] A condensate pipe valve 6 is installed on the condensate pipe 11.

[0087] Example 4

[0088] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0089] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0090] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0091] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11.

[0092] Refrigerant pipe valve I4 is installed on refrigerant pipe I9;

[0093] Refrigerant pipe valve II5 is installed on refrigerant pipe II10;

[0094] A condensate pipe valve 6 is installed on the condensate pipe 11.

[0095] The outdoor unit includes an outdoor unit housing 32, on which an outdoor unit air inlet 14 and an outdoor unit air outlet 13 are respectively provided on two opposite side walls; inside the outdoor unit housing 32, a direct evaporative cooling device, an evaporative cooling and direct cooling combined device and an outdoor unit fan 12 are arranged in sequence according to the air flow direction; the direct evaporative cooling device is connected to the evaporative cooling and direct cooling combined device.

[0096] A solar power supply device 22 is also installed on the top of the outdoor unit casing 32, and the solar power supply device 22 is connected to the evaporative cooling and direct cooling combined device;

[0097] It also includes a condensate drain pipe 30 connected to a combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray 7 via a condensate pipe 11.

[0098] The combined evaporative cooling and direct cooling device is connected to the evaporator 3 via refrigerant pipe I9 and refrigerant pipe II10.

[0099] Example 5

[0100] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0101] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0102] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0103] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11.

[0104] Refrigerant pipe valve I4 is installed on refrigerant pipe I9;

[0105] Refrigerant pipe valve II5 is installed on refrigerant pipe II10;

[0106] A condensate pipe valve 6 is installed on the condensate pipe 11.

[0107] The outdoor unit includes an outdoor unit housing 32, on which an outdoor unit air inlet 14 and an outdoor unit air outlet 13 are respectively provided on two opposite side walls; inside the outdoor unit housing 32, a direct evaporative cooling device, an evaporative cooling and direct cooling combined device and an outdoor unit fan 12 are arranged in sequence according to the air flow direction; the direct evaporative cooling device is connected to the evaporative cooling and direct cooling combined device.

[0108] A solar power supply device 22 is also installed on the top of the outdoor unit casing 32, and the solar power supply device 22 is connected to the evaporative cooling and direct cooling combined device;

[0109] It also includes a condensate drain pipe 30 connected to a combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray 7 via a condensate pipe 11.

[0110] The combined evaporative cooling and direct cooling device is connected to the evaporator 3 via refrigerant pipe I9 and refrigerant pipe II10.

[0111] The direct evaporative cooling device includes a wet curtain water distribution device 16, an evaporative cooling wet curtain 17, and a wet curtain water receiving tray 18 arranged sequentially from top to bottom; the wet curtain water receiving tray 18 is connected to the evaporative cooling and direct cooling combined device; the wet curtain water distribution device 16 is connected to the evaporator water receiving tray 7 through a condensate pipe 11.

[0112] Example 6

[0113] Air conditioning condensate two-stage recovery evaporative cooling system, such as Figure 1 As shown, it includes indoor unit units and outdoor unit units;

[0114] The indoor unit includes an indoor unit housing 31. An indoor unit air outlet 1 is provided on one side wall of the indoor unit housing 31. An evaporator 3, an evaporator water tray 7 and an indoor unit fan 2 are provided inside the indoor unit housing 31. The evaporator water tray 7 is located below the evaporator 3, and the indoor unit fan 2 is located at the indoor unit air outlet 1.

[0115] Evaporator 3 is connected to the outdoor unit via refrigerant pipe I9 and refrigerant pipe II10 respectively; evaporator drip tray 7 is connected to the outdoor unit via condensate pipe 11.

[0116] An evaporator water tray outlet filter device 8 is installed on the condensate pipe 11.

[0117] Refrigerant pipe valve I4 is installed on refrigerant pipe I9;

[0118] Refrigerant pipe valve II5 is installed on refrigerant pipe II10;

[0119] A condensate pipe valve 6 is installed on the condensate pipe 11.

[0120] The outdoor unit includes an outdoor unit housing 32, on which an outdoor unit air inlet 14 and an outdoor unit air outlet 13 are respectively provided on two opposite side walls; inside the outdoor unit housing 32, a direct evaporative cooling device, an evaporative cooling and direct cooling combined device and an outdoor unit fan 12 are arranged in sequence according to the air flow direction; the direct evaporative cooling device is connected to the evaporative cooling and direct cooling combined device.

[0121] A solar power supply device 22 is also installed on the top of the outdoor unit casing 32, and the solar power supply device 22 is connected to the evaporative cooling and direct cooling combined device;

[0122] It also includes a condensate drain pipe 30 connected to a combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray 7 via a condensate pipe 11.

[0123] The combined evaporative cooling and direct cooling device is connected to the evaporator 3 via refrigerant pipe I9 and refrigerant pipe II10.

[0124] The direct evaporative cooling device includes a wet curtain water distribution device 16, an evaporative cooling wet curtain 17, and a wet curtain water receiving tray 18 arranged sequentially from top to bottom; the wet curtain water receiving tray 18 is connected to the evaporative cooling and direct cooling combined device; the wet curtain water distribution device 16 is connected to the evaporator water receiving tray 7 through a condensate pipe 11.

[0125] The combined evaporative cooling and direct cooling device includes a condenser spray device 24, a condenser 25, and a condenser water receiving pan 26 arranged sequentially from top to bottom; it also includes a condensate discharge pipe 30, which is connected to the condenser water receiving pan 26; it also includes a secondary condensate recovery pipe 29, through which the wet curtain water receiving pan 18 is connected to the condenser spray device 24; a water pump 21 is installed on the secondary condensate recovery pipe 29; and a solar power supply device 22 is connected to the water pump 21, which supplies power to the water pump 21.

[0126] The condenser 25 is connected to the evaporator 3 through refrigerant pipe I9 and refrigerant pipe II10.

Claims

1. A two-stage condensate recovery evaporative cooling system for air conditioning, characterized in that, Including indoor and outdoor unit units; The indoor unit includes an indoor unit housing (31), an indoor unit air outlet (1) is provided on one side wall of the indoor unit housing (31), and an evaporator (3), an evaporator water tray (7) and an indoor unit fan (2) are provided inside the indoor unit housing (31). The evaporator water tray (7) is located below the evaporator (3), and the indoor unit fan (2) is located at the indoor unit air outlet (1). The evaporator (3) is connected to the outdoor unit through refrigerant pipe I (9) and refrigerant pipe II (10); the evaporator drip tray (7) is connected to the outdoor unit through condensate pipe (11); The outdoor unit includes an outdoor unit housing (32), and an outdoor unit air inlet (14) and an outdoor unit air outlet (13) are respectively provided on two opposite side walls of the outdoor unit housing (32); inside the outdoor unit housing (32) in accordance with the air flow direction, a direct evaporative cooling device, an evaporative cooling and direct cooling combined device and an outdoor unit fan (12) are arranged in sequence; the direct evaporative cooling device is connected to the evaporative cooling and direct cooling combined device; A solar power supply device (22) is also installed on the top of the outdoor unit casing (32), and the solar power supply device (22) is connected to the evaporative cooling and direct cooling combined device; It also includes a condensate drain pipe (30) connected to the combined evaporative cooling and direct cooling device; the direct evaporative cooling device is connected to the evaporator drip tray (7) via a condensate pipe (11); The combined evaporative cooling and direct cooling device is connected to the evaporator (3) via refrigerant pipe I (9) and refrigerant pipe II (10).

2. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 1, characterized in that, The condensate pipe (11) is equipped with an evaporator water receiving pan outlet filter device (8).

3. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 1, characterized in that, The refrigerant pipe I (9) is equipped with a refrigerant pipe valve I (4); The refrigerant pipe II (10) is equipped with a refrigerant pipe valve II (5); A condensate pipe valve (6) is installed on the condensate pipe (11).

4. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 1, characterized in that, The direct evaporative cooling device includes a wet curtain water distribution device (16), an evaporative cooling wet curtain (17), and a wet curtain water receiving tray (18) arranged sequentially from top to bottom; the wet curtain water receiving tray (18) is connected to the evaporative cooling and direct cooling combined device; the wet curtain water distribution device (16) is connected to the evaporator water receiving tray (7) through a condensate pipe (11).

5. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 4, characterized in that, The combined evaporative cooling and direct cooling device includes a condenser spray device (24), a condenser (25), and a condenser water receiving pan (26) arranged sequentially from top to bottom; it also includes a condensate discharge pipe (30) connected to the condenser water receiving pan (26); it also includes a secondary condensate recovery pipe (29), the wet curtain water receiving pan (18) being connected to the condenser spray device (24) through the secondary condensate recovery pipe (29); a water pump (21) is installed on the secondary condensate recovery pipe (29); a solar power supply device (22) is connected to the water pump (21), and the solar power supply device (22) supplies power to the water pump (21); The condenser (25) is connected to the evaporator (3) through refrigerant pipe I (9) and refrigerant pipe II (10).

6. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 4, characterized in that, A water level detector (20) is installed inside the wet curtain water receiving tray (18). A solar power supply device (22) is connected to the water level detector (20), and the solar power supply device (22) supplies power to the water level detector (20). The water level detector (20) is a radar water level gauge, model DX-WLX-2; the water pump (21) is model CSP48180XW; The water level detector (20) is connected to the water pump (21), and the water pump (21) can start or stop according to the water level signal sent by the water level detector (20) according to the preset requirements.

7. The air conditioning condensate two-stage recovery evaporative cooling system according to claim 4, characterized in that, The condensate drain pipe (30) is equipped with a condensate drain outlet valve (27).

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