CN112923545A

CN112923545A - System and method for efficiently recycling condensed water of central air conditioner

Info

Publication number: CN112923545A
Application number: CN202110366385.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Foshan Shunde Weilong Cooling And Heating Equipment Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-06-08
Anticipated expiration: 2041-04-06
Also published as: CN112923545B

Abstract

The invention discloses a system for recycling condensed water of a central air conditioner with high efficiency, which comprises: the fresh air unit is used for processing the air extracted outdoors and then sending the processed air to the indoor; the heat exchanger is used for carrying out heat exchange on the air extracted by the fresh air handling unit; the first water storage tank is used for collecting and storing condensed water flowing out of the heat exchanger, a flow combiner is arranged between the first water storage tank and the heat exchanger, and an eighth water pump is arranged between the first water storage tank and the flow combiner; the circulating water tank is used for placing the greening planting module, is connected with the first water storage tank and transmits the condensed water in the first water storage tank to the greening planting module; the first refrigerator is used for cooling the condensate water conveyed in the first water storage tank, and a flow divider is arranged between the first refrigerator and the first water storage tank; and the second water storage tank is used for collecting and storing the condensed water and conveying the condensed water to the heat exchanger.

Description

System and method for efficiently recycling condensed water of central air conditioner

Technical Field

The invention belongs to the technical field of air conditioning equipment, and particularly relates to a system and a method for efficiently recycling condensed water of a central air conditioner.

Background

The central air conditioning system is composed of one or more cold and heat source systems and a plurality of air conditioning systems, and the system is different from the traditional refrigerant type air conditioner, and the air is intensively treated (such as a single machine, VRV) to achieve the comfort requirement. The principle of liquid gasification refrigeration is adopted to provide the required cold energy for the air conditioning system so as to offset the heat load of the indoor environment; the heating system provides the air conditioning system with the required heat to offset the indoor environment cooling and heating load. The tail end of the central air-conditioning system uses a large number of fan coils, air processing units and fresh air processing units, and the chilled water in the heat exchangers of the equipment can generate a large amount of low-temperature condensed water at about 16 ℃ in the process of cooling and dehumidifying indoor air and outdoor fresh air. The condensed water produced by some conventional air conditioning systems is discharged naturally through a condensed water pipe, and the condensed water is not utilized, which causes obvious energy waste, and needs to be improved.

The existing condensate water recycling system of a central air conditioner has the following disclosure: chinese patent CN110779125B, which describes: the invention collects the low-temperature condensed water in the combined air conditioner in the condensed water tank for the spraying and humidifying of the air conditioner; high-temperature condensed water generated by the steam distributing cylinder and the steam pipeline is collected in the hot water tank and used for heating in the combined air conditioner, high-temperature sewage discharged by the boiler is used for heating water in the hot water tank through the coil pipe in the hot water tank, and if the temperature of the water in the hot water tank is lower than the temperature of water required by a heater in the combined air conditioner, the water in the hot water tank is heated through steam, so that the steam is saved and the water is also saved. The invention uses the steam condensate water, the boiler blow-off waste heat and the low-temperature condensate water in the combined air conditioner to the combined air conditioner, and when the condensate water is insufficient, the softened water is supplemented, thereby saving water and heat.

Above-mentioned system is through all being used for combined air conditioner with steam condensate water, boiler blowdown waste heat and the low temperature condensate water in the combined air conditioner, when the comdenstion water is not enough, supplyes the demineralized water again to water conservation and heat, but when retrieving the comdenstion water, do not have better utilization comdenstion water, the comdenstion water is only used for the heating in the combined air conditioner at recycle's in-process, and the recycle direction of comdenstion water is single, and the utilization ratio is too low.

Disclosure of Invention

The present invention aims at solving the technological problem and provides one system and method for recovering and utilizing condensed water from central air conditioner in high efficiency.

The purpose of the invention is realized as follows: a system for recycling condensed water of a central air conditioner with high efficiency comprises: the fresh air unit is used for processing the air extracted outdoors and then sending the processed air to the indoor;

the heat exchanger is used for carrying out heat exchange on the air extracted by the fresh air handling unit;

the first water storage tank is used for collecting and storing condensed water flowing out of the heat exchanger, a flow combiner is arranged between the first water storage tank and the heat exchanger, and an eighth water pump is arranged between the first water storage tank and the flow combiner;

the circulating water tank is used for placing the greening planting module, is connected with the first water storage tank and transmits the condensed water in the first water storage tank to the greening planting module;

the first refrigerator is used for cooling the condensate water conveyed in the first water storage tank, and a flow divider is arranged between the first refrigerator and the first water storage tank;

the second water storage tank is used for collecting and storing condensed water and conveying the condensed water to the heat exchanger;

a third water storage tank for storing hot water, a first water inlet, a second water inlet and a water outlet which are arranged on the third water storage tank, wherein the first water inlet is connected with the first water storage tank, and the second water inlet is connected with the first water storage tank through a water pipe

The water outlet of the fourth water storage tank is connected with the first refrigerator;

and the fifth water storage tank is used for storing condensed water, a first water inlet of the fifth water storage tank is connected with the flow divider, a water outlet of the fifth water storage tank is connected with the third water storage tank, a second water inlet of the fifth water storage tank is connected with the third water storage tank, and a sixth water pump is further arranged between the fifth water storage tank and the third water storage tank.

The invention is further configured to: the circulating water tank comprises an upper water tank, a lower water tank and a plurality of greening frames arranged between the upper water tank and the lower water tank, each greening frame is divided into a plurality of layers, a plurality of greening planting modules are placed on the upper surface of each layer of greening frame, an irrigation pipe is arranged on the lower surface of each layer of greening frame, an irrigation opening corresponding to each greening planting module is formed in each irrigation pipe, a water pipe connected with the irrigation pipe is arranged at the bottom of the upper water tank, an eleventh water pump is arranged between the upper water tank and the irrigation pipe, an opening for receiving condensed water dripped from the irrigation opening is formed in the top of the lower water tank, a water pipe connected with the first water storage tank is arranged at the bottom of the lower water tank, and a twelfth water pump is arranged between the lower water tank.

The invention is further configured to: the first water storage tank is also provided with a main controller, the main controller is connected with an eleventh water pump and a twelfth water pump, the upper water tank is provided with a greening water tank, nutrient solution is stored in the greening water tank, a ninth water pump is arranged between the greening water tank and the upper water tank, a tenth water pump is arranged between the upper water tank and the first water storage tank, a control device is arranged between the tenth water pump and the ninth water pump, the control device can control the ninth water pump and the tenth water pump to convey nutrient solution and condensate water according to a selected proportioning value by inputting a proportioning value of the nutrient solution and the condensate water, the control device comprises a main regulating valve (36) connected with the tenth water pump and an auxiliary regulating valve connected with the ninth water pump, the control device also comprises an auxiliary controller used for controlling the auxiliary regulating valve, the main controller controls the main regulating valve to operate, and the main controller is connected with the auxiliary controller and controls the auxiliary controller to operate, the main controller controls the main regulating valve to operate according to a selected proportioning value, the main controller controls the auxiliary controller to operate simultaneously, the auxiliary controller controls the auxiliary regulating valve to operate according to the selected proportioning value according to a command sent by the main controller, the tenth water pump is further provided with a flow detection device for detecting and feeding back the flow of the tenth water pump, the auxiliary controller is provided with an adjusting device, the adjusting device is used for receiving a total flow value fed back by the flow detection device and comparing the total flow value with the selected proportioning value to obtain a difference signal, the difference signal is fed back to the main controller, the main controller controls the auxiliary controller to operate according to the difference signal while controlling the operation of the main regulating valve, and the auxiliary controller adjusts the flow of the auxiliary regulating valve according to the difference signal sent by the main controller and the proportioning value.

The invention is further configured to: the second water storage tank is connected with a spraying device through a water pipe, the spraying device is installed on the outdoor unit heat exchanger and is used for spraying condensed water in the second water storage tank onto the radiating fins of the outdoor unit heat exchanger to accelerate cooling of the radiating fins; the water pump type refrigerating machine is characterized in that the first water storage tank, the flow divider and the first refrigerating machine are sequentially connected through a water pipe, a first water pump is arranged on the water pipe between the first water storage tank and the flow divider, condensed water in the first water storage tank is conveyed into the first refrigerating machine after passing through the first water pump and the flow divider, a second water pump is arranged between the second water storage tank and the heat exchanger, a third water pump is arranged between the second water storage tank and the spraying device, the condensed water in the second water storage tank is conveyed into the spraying device through the third water pump, a fourth water pump is arranged between the fourth water storage tank and the third water storage tank, a second refrigerating machine is arranged between a second water outlet of the fourth water storage tank and the second water storage tank, and a fifth water pump is arranged between the second refrigerating machine and the fourth water storage tank.

The invention is further configured to: the water level sensor is characterized in that a first liquid level sensing device is arranged in the second water storage tank, a third liquid level sensing device is arranged in the fifth water storage tank, a second liquid level sensing device and a heater are arranged in the third water storage tank, the heater is connected with the main controller, and the main controller is respectively connected with the flow divider, the flow combiner, the first water pump, the second water pump, the third water pump, the fourth water pump, the fifth water pump, the sixth water pump, the temperature sensing device, the first liquid level sensing device, the second liquid level sensing device and the third liquid level sensing device.

The invention is further configured to: the sprinkler includes the casing, the cross-section of casing is 7 types, the inside tubulose cavity that is equipped with of casing, the one end of tubulose cavity runs through the one end of casing and leads to pipe and be connected with the second water storage box, the other end of casing is equipped with the jet, the other end of tubulose cavity extends to the jet, the one end that the casing is close to the jet is equipped with the installing port, be equipped with the cross-section on the installing port and be the circular shape diversion disc, the periphery of diversion disc is equipped with the collar with the installing port adaptation, a plurality of watering holes have been seted up on the diversion disc.

The invention is further configured to: watering hole evenly distributed is on dividing the water tray, watering hole includes interior cavity, outer cavity and connects the connection cavity of interior cavity and outer cavity, the diameter of interior cavity reduces along the rivers injection direction gradually, the diameter of outer cavity increases along the rivers injection direction gradually, it is hollow cylindrical cavity to connect the cavity.

The invention is further configured to: the bottom of the outdoor unit heat exchanger is provided with a condensate water collecting box, the condensate water collecting box comprises an upper box body and a lower box body, an opening is formed in the upper box body, a collecting hopper is arranged at the top of the upper box body, a water outlet is formed in the bottom of the collecting hopper and extends downwards into the opening of the upper box body, a drainage channel is arranged between the upper box body and the lower box body, a bottom plate is obliquely arranged at the bottom of the upper box body, a plurality of obliquely arranged filter screen plates are arranged on the side wall inside the upper box body, and a water pipe connected with a flow connector is arranged at the bottom of the lower box body.

The invention is further configured to: the collecting hopper comprises a framework and a flexible film coated outside the framework, the drainage channel is arranged at the bottom of the upper box body, the filter screen plate is located above the drainage channel, the bottom of the lower box body is provided with a filter bottom plate, the filter holes of the filter bottom plate are smaller than the filter holes of the filter screen plate, the upper box body is further provided with a cleaning sprayer, the cleaning sprayer is provided with a water pipe communicated with the second water storage tank, and the water pipe is provided with a seventh water pump.

The invention also discloses a method for efficiently recycling the condensed water of the central air conditioner, which comprises the following steps: the method comprises the following steps:

s1, setting a lower water temperature limit, an upper first water level limit and a lower first water level limit of the third water storage tank; setting a first water level upper limit and a second water level lower limit of a second water storage tank; setting the upper limit of the third water level in the fifth water storage tank

S2, when the temperature sensing device detects that the temperature in the third water storage tank is kept at the upper limit of the water temperature, the water temperature in the third water storage tank does not need to be increased, at the moment, the main controller controls the first water pump and the second water pump to be started, closes the channel between the flow divider and the fifth water storage tank, and opens the channel between the first refrigerator and the first water storage tank, at the moment, condensed water collected on the heat exchanger sequentially passes through the flow combiner, the first water storage tank, the flow divider, the first refrigerator and the second water storage tank, and finally the cooled condensed water is returned to the heat exchanger;

s2, when the temperature sensing device detects that the temperature in the third water storage tank is lower than the upper limit of the water temperature, the water temperature in the third water storage tank needs to be increased, at the moment, the main controller controls the flow divider to close the channel between the first water storage tank and the first refrigerator, opens the channel between the first water storage tank and the fifth water storage tank, the first water storage tank enters the fifth water storage tank under the action of the first water pump, at the moment, the third liquid level sensing device detects the water level in the fifth water storage tank, if the water level in the fifth water storage tank is lower than the upper limit of the third water level, the main controller closes the seventh water pump until the water level of the fifth water storage tank is higher than the upper limit of the third water level, if the water level in the fifth water storage tank is higher than the upper limit of the third water level, the sixth water pump is opened and the condensed water is input into the third water storage tank, and at the same time, the water level in the third water storage tank is, opening a water outlet and discharging the condensed water to the first refrigerator, and simultaneously opening a heater to heat the condensed water until the temperature in the third water storage tank is higher than the lower limit of the water temperature;

s3, when the water level in the third water storage tank is lower than the first lower water level limit, if the water level in the fifth water storage tank is higher than the third upper water level limit, the sixth water pump is started to lead the inward condensed water in the fifth water storage tank into the third water storage tank, and if the water level in the fifth water storage tank is lower than the third upper water level limit or the water in the fifth water storage tank is not enough to fill the water in the third water storage tank, the main controller controls the fourth water pump to be started to input the water in the fourth water storage tank into the third water storage tank until the water in the third water storage tank is higher than the first lower water level limit;

and S4, when the water in the two water storage tanks is lower than the first water level lower limit, the main controller starts the fifth water pump, the water in the fourth water storage tank is cooled by the second refrigerator and then is input into the second water storage tank until the water in the second water storage tank is higher than the first water level lower limit, and when the water in the two water storage tanks is lower than the first water level upper limit, the main controller controls the third water pump to be started, the water in the second water storage tank is input into the spraying device, the spraying device sprays the water onto the heat dissipation fins of the outdoor unit heat exchanger, and the water which is not evaporated on the outdoor unit heat exchanger is collected into the first water storage tank through the condensed water collection box.

The invention has the beneficial effects that:

1. through being equipped with circulation tank, can come to water the planting technique module in the circulation tank through retrieving the comdenstion water in the first water storage box, wherein, adjusting device is after receiving the total flow value of flow detection device feedback, compare the total flow value with the selected ratio value and obtain the difference signal, again give back the difference signal to main control unit, main control unit controls the operation of sub-controller according to the difference signal when controlling the operation of main regulating valve, sub-controller adjusts the flow of sub-regulating valve according to the difference signal that main control unit sent and according to the ratio value, can effectively reduce the influence of error, improve the ratio precision between nutrient and the comdenstion water, effectively prevent that too much of nutrient proportion from leading to the fact the damage to the afforestation plant, or the comdenstion water proportion makes the afforestation plant can't obtain sufficient nutrition, lead to withering.

2. The condensed water can select a recovery path according to the temperature of the third water storage tank through the recovery path provided with the condensed water, when the temperature of the water in the third water storage tank does not need to be raised, the condensed water sequentially passes through the flow combiner, the first water storage tank, the flow divider, the first refrigerator, the second water storage tank, the heat exchanger and the flow combiner and finally flows back to the first water storage tank, the condensed water cooled by the first refrigerator can effectively reduce the use amount of the air-conditioning refrigerator and the power consumption, the condensed water can have multiple recovery ways, and the recovery and utilization efficiency of the condensed water is greatly improved;

3. by setting the recovery path of the condensed water, the recovery path of the condensed water can be automatically selected according to the temperature in the third water tank, when the water in the third water tank needs to be heated, the condensed water sequentially passes through the flow combiner, the first water storage tank, the flow divider, the fifth water storage tank, the third water storage tank, the first refrigerator, the second water storage tank, the heat exchanger and the flow combiner, finally flows back to the first water storage tank, the high-temperature condensed water can be recovered through the fifth water storage tank, and then the high-temperature condensed water is guided into the third water storage tank, so that the power consumption for increasing the temperature of the condensed water in the third water storage tank can be greatly reduced, the water quantity transmitted to the third water storage tank by the fourth water storage tank can be reduced, the condensed water is fully utilized, and;

4. the recovery path of the condensed water can be automatically selected according to the water level in the third water tank by setting the recovery path of the condensed water, when the water level in the third water tank is lower than the first water level lower limit, the water in the fifth water tank can be input into the third water tank, and when the water level in the fifth water tank is lower than the third water level upper limit, the condensed water in the first water tank can be input into the fifth water tank, so that the condensed water of waste gas is fully utilized, and the loss of water resources is reduced;

5. the condensed water in the second water storage tank can be used for dissipating heat of the outdoor heat exchanger through the spraying device, so that the full utilization effect of the condensed water is further improved, the sprayed residual condensed water can be recovered through the condensed water collecting box and then returned to the first water storage tank again for continuous recycling, and the utilization rate of the condensed water is effectively improved;

drawings

FIG. 1 is a schematic view of the structural connection of the present invention;

FIG. 2 is a schematic view of the structure of the spraying device of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a schematic view showing the structure of the condensate collecting apparatus of the present invention;

fig. 5 is a schematic view showing the structural connection of the circulation tank of the present invention.

The reference numbers in the figures are: 10. a fresh air handling unit; 11. a first water storage tank; 12. a second water storage tank; 13. a third water storage tank; 14. a fourth water storage tank; 15. a fifth water storage tank; 16. a flow divider; 17. a flow combiner; 18. a main controller; 19. a sub-controller; 20. a first water pump; 21. a second water pump; 22. a third water pump; 23. a fourth water pump; 24. a fifth water pump; 25. a sixth water pump; 26. a seventh water pump; 27. a first liquid level sensing device; 28. a second liquid level sensing device; 29. a third liquid level sensing device; 30. a heat exchanger; 31. a temperature sensing device; 32. a first refrigerator; 33. a second refrigerator; 34. an eighth water pump; 35. a ninth water pump; 36. a primary regulator valve; 37. an auxiliary regulating valve; 38. a flow detection device; 39. a greening water tank; 40. a spraying device; 41. a housing; 42. a tubular chamber; 43. an ejection port; 44. an installation port; 45. a water diversion disc; 46. a mounting ring; 47. a water sprinkling hole; 471. an inner cavity; 472. an outer cavity; 473. connecting the cavity; 50. a heater; 51. an outdoor heat exchanger; 6. a condensed water collecting box; 61. an upper box body; 62. a lower box body; 63. a drainage channel; 64. a collecting hopper; 641. a framework; 642. flexible film covering; 65. a base plate; 66. a filter screen plate; 67. a filter base plate; 68. cleaning the spray head; 70. a circulating water tank; 71. a water feeding tank; 72. a lower water tank; 73. a greening frame; 74. a greening planting module; 75. an irrigation pipe; 76. an irrigation opening; 77. a tenth water pump; 78. an eleventh water pump; 79. a twelfth water pump.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description clearly and completely describes the technical solution in the embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1: a system for recycling condensed water of a central air conditioner with high efficiency comprises: the fresh air handling unit 10 is used for processing the air extracted outdoors and then sending the processed air to the indoor;

the heat exchanger 30 is used for carrying out heat exchange on the air extracted by the fresh air handling unit 10;

the first water storage tank 11 is used for collecting and storing condensed water flowing out of the heat exchanger 30, a flow combiner 17 is arranged between the first water storage tank 11 and the heat exchanger 30, and an eighth water pump 34 is arranged between the first water storage tank 11 and the flow combiner 17;

the circulating water tank 70 is used for placing the greening planting module 74, the circulating water tank 70 is connected with the first water storage tank 11, and the condensed water in the first water storage tank 11 is transmitted to the greening planting module 74;

a first refrigerator 32 for cooling the condensate water conveyed in the first water storage tank 11, wherein a flow divider 16 is arranged between the first refrigerator 32 and the first water storage tank 11;

the second water storage tank 12 is used for collecting and storing condensed water and conveying the condensed water to the heat exchanger 30;

the third water storage tank 13 is used for storing hot water, the third water storage tank 13 is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet is connected with the first water storage tank 11, the second water inlet is connected with the fourth water storage tank 14 through a water pipe, and the water outlet is connected with the first refrigerator 32;

and the fifth water storage tank 15 is used for storing condensed water, a first water inlet of the fifth water storage tank 15 is connected with the flow divider 16, a water outlet of the fifth water storage tank 15 is connected with the third water storage tank 13, a second water inlet of the fifth water storage tank 15 is connected with the third water storage tank 13, and a sixth water pump 25 is further arranged between the fifth water storage tank 15 and the third water storage tank 13.

Optimally, the air extracted by the fresh air unit 10 is treated and sent to the indoor after being extracted by the fresh air unit 10, the air sent by the fresh air unit 10 passes through the heat exchanger 30, the heat exchanger 30 exchanges heat with the air extracted by the fresh air unit 10 through condensate water, the air is cooled and then sent to the indoor, the heat exchanger 30 discharges the condensate water with increased temperature into the first water storage tank 11 through a water pipe for storage, a plurality of heat exchangers 30 can be arranged, thus the heat exchange efficiency can be improved, the condensate water stored in the first water storage tank 11 can be conveyed into the first refrigerator 32 through the diverter 16, the first refrigerator 32 can cool the high-temperature condensate water and then conveys the cooled condensate water into the second water storage tank 12, the second water storage tank 12 is used for collecting and storing the condensate water cooled by the first refrigerator 32 and then conveying the cooled condensate water back to the heat exchanger 30, and the temperature of the air sucked by the fresh, thus, a circulation is formed, the condensed water is fully recycled, the water in the first water storage tank 11 can be conveyed into a third water storage tank 13 when passing through a flow divider 16, the third water storage tank 13 is used for storing hot water, the third water storage tank 13 is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet is connected with the first water storage tank 11, the second water inlet is connected with a fourth water storage tank 14 through a water pipe, the water outlet is connected with a first refrigerator 32, the fourth water storage tank 14 is used for storing tap water, the fourth water storage tank 14 is connected with a tap water pipe, a fifth water storage tank 15 is further arranged between the third water storage tank 13 and the first water storage tank 11, the fifth water storage tank 15 is used for storing the condensed water, the first water inlet of the fifth water storage tank 15 is connected with the flow divider 16, the water outlet of the fifth water storage tank 15 is connected with the third water storage tank 13, the second water inlet of the fifth water storage tank 15 is connected with the third, a sixth water pump 25 is arranged between the fifth water storage tank 15 and the third water storage tank 13, the condensed water in the first water storage tank 11 is firstly conveyed into the fifth water storage tank 15 through a flow divider 16, the condensed water in the fifth water storage tank 15 is conveyed into the third water storage tank 13 through the sixth water pump 25, the high-temperature condensed water in the third water storage tank 13 is conveyed into the second water storage tank 12 after being cooled by a first refrigerator 32, and finally conveyed into a heat exchanger 30, so that the recycling of the condensed water is realized; the condensed water in the first water storage tank 11 can be also conveyed into the circulating water tank 70 for adding water to the greening planting modules 74 in the circulating water tank 70, and the water in the circulating water tank 70 can also be conveyed back into the first water storage tank 11 through the twelfth water pump 79.

As shown in fig. 1 and 5: the circulating water tank 70 comprises an upper water tank 71, a lower water tank 72 and a plurality of greening frames 73 arranged between the upper water tank 71 and the lower water tank 72, each greening frame 73 is divided into a plurality of layers, a plurality of greening planting modules 74 are placed on the upper surface of each layer of greening frame 73, an irrigation pipe 75 is arranged on the lower surface of each layer of greening frame 73, an irrigation opening 76 corresponding to each greening planting module 74 is formed in each irrigation pipe 75, a water pipe connected with the irrigation pipe 75 is arranged at the bottom of the upper water tank 71, an eleventh water pump 78 is arranged between the upper water tank 71 and the irrigation pipe 75, an opening for receiving condensed water dripped from the irrigation pipe 75 is formed in the top of the lower water tank 72, a water pipe connected with the first water storage tank 11 is formed in the bottom of the lower water tank 72, and a twelfth water pump 79 is arranged between.

Preferably, the upper water tank 71 and the lower water tank 72 are used for storing and collecting condensed water, the greening frame 73 plays a supporting role, the greening frame 73 is provided with multiple layers, at least three layers are provided, the greening frame 73 is arranged in a wave shape, the greening planting modules 74 are fixed on the greening frame 73 through bolts, when the greening frame is used, the condensed water in the upper water tank 71 is conveyed into the irrigation opening 76 through the eleventh water pump 78, the condensed water in the irrigation pipe 75 is irrigated onto each greening planting module 74 on the first layer of the greening frame 73 through the irrigation opening 76, a through hole is formed in the bottom of each greening planting module 74, the condensed water can flow onto the irrigation pipe 75 on the greening frame 73 on the next layer through the through holes, the condensed water on the last layer is collected into the lower water tank 72 through the irrigation pipe 75, and the condensed water in the lower water tank 72 is conveyed back into the first water storage tank.

As shown in fig. 1 and 5: the first water storage tank 11 is also provided with a main controller 18, the main controller 18 is connected with an eleventh water pump 78 and a twelfth water pump 79, the upper water tank 71 is provided with a greening water tank 39, nutrient solution is stored in the greening water tank 39, a ninth water pump 35 is arranged between the greening water tank 39 and the upper water tank 71, a tenth water pump 77 is arranged between the upper water tank 71 and the first water storage tank 11, a control device is arranged between the tenth water pump 77 and the ninth water pump 35, the control device can control the ninth water pump 35 and the tenth water pump 77 to convey nutrient solution and condensate water according to a selected proportion value by inputting a proportion value of the nutrient solution and the condensate water, the control device comprises a main regulating valve 36 connected with the tenth water pump 77 and an auxiliary regulating valve 37 connected with the ninth water pump 35, the main controller also comprises an auxiliary controller 19 used for controlling the auxiliary regulating valve 37, the main controller 18 controls the main regulating valve 36 to operate, the auxiliary controller 18 is connected with the auxiliary controller 19 and controls the, the main controller 18 controls the operation of the main regulating valve 36 according to the selected proportioning value, the main controller 18 controls the operation of the sub controller 19, the sub controller 19 controls the operation of the sub regulating valve 37 according to the selected proportioning value according to a command sent by the main controller 18, the tenth water pump 77 is also provided with a flow detection device 38 for detecting and feeding back the flow of the tenth water pump 77, the sub controller 19 is provided with an adjusting device for receiving the total flow value fed back by the flow detection device 38 and comparing the total flow value with the selected proportioning value to obtain a difference signal, and then feeding back the difference signal to the main controller 18, the main controller 18 controls the operation of the sub controller 19 according to the difference signal while controlling the operation of the main regulating valve 36, and the sub controller 19 adjusts the flow of the sub regulating valve 37 according to the difference signal sent by the main controller 18 and the proportioning value.

Preferably, the first water storage tank 11 is further provided with a main controller 18, the main controller 18 is connected with an eleventh water pump 78 and a twelfth water pump 79, the upper water tank 71 is provided with a greening water tank 39, wherein the greening water tank 39 is used for storing nutrient solution, the nutrient solution and condensed water are mixed and then supply nutrient and water required by the growth of the greening planting module 74, when in use, a ratio value between the nutrient solution and the condensed water is input into the main controller 18, the main controller 18 controls the operation of the main regulating valve 36 according to the selected ratio value, the main regulating valve 36 and the tenth water pump 77 operate, a proper amount of condensed water is input into the upper water tank 71, at the moment, the flow detection device 38 calculates the flow rate of the condensed water input into the upper water tank 71 by the tenth water pump 77, the regulating device receives the total flow rate value fed back by the flow detection device 38 and compares the total flow rate value with the selected ratio value to obtain a difference signal, and then feeds, meanwhile, the main controller 18 controls the sub-controller 19 to operate, the sub-controller 19 controls the sub-regulating valve 37 to operate according to the selected proportioning value according to the difference signal sent by the main controller 18, and the sub-regulating valve 37 regulates the flow of the sub-regulating valve 37 according to the proportioning value, so that the greening water tank 39 inputs nutrient solution with corresponding flow, the influence of errors can be effectively reduced, the proportioning precision between the nutrient solution and condensed water is improved, and the problems that greening plants are damaged due to too much nutrient proportion or the greening plants cannot obtain enough nutrition due to too much condensed water proportion are effectively prevented.

As shown in fig. 1: the second water storage tank 12 is connected with a spraying device 40 through a water pipe, the spraying device 40 is installed on the outdoor heat exchanger 30 and is used for spraying condensed water in the second water storage tank 12 onto the radiating fins of the outdoor heat exchanger 51 to accelerate cooling of the radiating fins; the first water storage tank 11 is connected with the flow divider 16 and the first refrigerator 32 sequentially through a water pipe, a first water pump 20 is arranged on the water pipe between the first water storage tank 11 and the flow divider 16, condensed water in the first water storage tank 11 is conveyed into the first refrigerator 32 through the first water pump 20 and the flow divider 16, a second water pump 21 is arranged between the second water storage tank 12 and the heat exchanger 30, a third water pump 22 is arranged between the second water storage tank 12 and the spraying device 40, the condensed water in the second water storage tank 12 is conveyed into the spraying device 40 through the third water pump 22, a fourth water pump 23 is arranged between the fourth water storage tank 14 and the third water storage tank 13, a second refrigerator 33 is arranged between a second water outlet of the fourth water storage tank 14 and the second water storage tank 12, and a fifth water pump 24 is arranged between the second refrigerator 33 and the fourth water storage tank 14.

Preferably, the condensed water in the first water storage tank 11 is conveyed into the first refrigerator 32 through the first water pump 20 and the flow divider 16, the water in the second water storage tank 12 is conveyed into the heat exchanger 30 through the second water pump 21, and can also be conveyed into the spraying device 40 through the third water pump 22, the spraying device 40 is connected with the second water storage tank 12 through a water pipe, the spraying device 40 is arranged above the outdoor heat exchanger 51, the spraying device 40 can spray the condensed water onto the heat sink of the outdoor heat exchanger 51 to take away the heat on the heat sink of the outdoor heat exchanger 51 through the evaporation of the low-temperature condensed water, the cooling effect of the heat sink of the outdoor heat exchanger 51 is improved, the recovered condensed water is fully utilized, the water in the second water storage tank 12 can also be supplemented through the water in the fourth water storage tank 14, the second refrigerator 33 is arranged between the second water outlet of the fourth water storage tank 14 and the second water storage tank 12, a fifth water pump 24 is arranged between the second refrigerator 33 and the fourth water storage tank 14, the second refrigerator 33 can cool the water input into the second water storage tank 12 from the fourth water storage tank 14, and the water in the fourth water storage tank 14 is input into the third water storage tank 13 through the fourth water pump 23.

As shown in fig. 1: the first liquid level sensing device 27 is arranged in the second water storage tank 12, the third liquid level sensing device 29 is arranged in the fifth water storage tank 15, the second liquid level sensing device 28 and the heater 50 are arranged in the third water storage tank 13, the heater 50 is connected with the main controller 18, and the main controller 18 is respectively connected with the heater 50, the flow divider 16, the flow combiner 17, the first water pump 20, the second water pump 21, the third water pump 22, the fourth water pump 23, the fifth water pump 24, the sixth water pump 25, the temperature sensing device 31, the first liquid level sensing device 27, the second liquid level sensing device 28 and the third liquid level sensing device 29.

Preferably, the first liquid level sensing device 27 can detect the water level variation in the second water storage tank 12 and feed the water level variation back to the main controller 18; the second liquid level sensing device 28 can detect the change of the water level in the third water storage tank 13 and feed the change of the water level back to the main controller 18; the heater 50 can heat the water in the third water storage tank 13, the main controller 18 is respectively connected with the heater 50, the flow divider 16, the confluence device 17, the first water pump 20, the second water pump 21, the third water pump 22, the fourth water pump 23, the fifth water pump 24, the sixth water pump 25, the temperature sensing device 31, the first liquid level sensing device 27, the second liquid level sensing device 28 and the third liquid level sensing device 29, and the components can be controlled by the main controller 18.

As shown in fig. 2 and 3: the spraying device 40 comprises a shell 41, the cross section of the shell 41 is in a 7 shape, a tubular cavity 42 is arranged inside the shell 41, one end of the tubular cavity 42 penetrates through one end of the shell 41 and is connected with the second water storage tank 12 through a water pipe, a jet opening 43 is arranged at the other end of the shell 41, the other end of the tubular cavity 42 extends to the jet opening 43, an installation opening 44 is arranged at one end, close to the jet opening 43, of the shell 41, a water diversion disc 45 with a circular cross section is arranged on the installation opening 44, an installation ring 46 matched with the installation opening 44 is arranged on the periphery of the water diversion disc 45, and a plurality of water sprinkling holes 47.

Optimized, the sprinkler 40 is connected with the second water storage tank 12 through a water pipe, the condensate water in the second water storage tank 12 is input into the tubular cavity 42 of the sprinkler 40 through the third water pump 22, the condensate water sequentially passes through the tubular cavity 42, the jet opening 43 and the water diversion disc 45, and finally is sprayed out through the water sprinkling hole 47, the cross section of the water diversion disc 45 is circular, the spraying range of the sprinkler 40 can be effectively improved through the arrangement of the water diversion disc 45 and the water sprinkling hole 47, larger area can be covered, the heat dissipation efficiency of the outdoor heat exchanger 51 is effectively improved, the water diversion disc 45 can be fixed on the mounting hole 44 through the matching between the mounting ring 46 and the mounting hole 44, and the mounting stability of the water diversion disc 45 is improved.

As shown in fig. 2 and 3: the water sprinkling holes 47 are uniformly distributed on the water diversion disc 45, each water sprinkling hole 47 comprises an inner cavity 471, an outer cavity 472 and a connecting cavity 473 for connecting the inner cavity 471 and the outer cavity 472, the diameter of the inner cavity 471 is gradually reduced along the water flow spraying direction, the diameter of the outer cavity 472 is gradually increased along the water flow spraying direction, and the connecting cavity 473 is a hollow cylindrical cavity.

Optimally, by arranging the water diversion disc 45, the diameter inside the water diversion disc 45 is gradually increased, by the structure, condensed water guided into the jet orifice 43 by the tubular cavity 42 can be efficiently input into the water diversion disc 45, the water diversion disc 45 is uniformly distributed with the water sprinkling holes 47, the condensed water can be more uniformly sprinkled, and further the heat dissipation of the heat dissipation fins of the outdoor heat exchanger 51 is more uniform, the water sprinkling holes 47 comprise an inner cavity 471, an outer cavity 472 and a connecting cavity 473 connecting the inner cavity 471 and the outer cavity 472, the diameter of the inner cavity 471 is gradually reduced along the water flow jetting direction, the diameter of the outer cavity 472 is gradually increased along the water flow jetting direction, the connecting cavity 473 is a hollow cylindrical cavity, by the structure, the water inlet efficiency can be improved when the condensed water meets the inner cavity 471, meanwhile, the condensed water cannot be reduced when passing through the connecting cavity 473, and finally, the condensed water can be sprinkled in an enlarged way, can form a conical water curtain, improves the spraying range and further improves the heat dissipation effect.

As shown in fig. 4: the bottom of outdoor heat exchanger 51 is equipped with condensate water collecting box 6, condensate water collecting box 6 includes box 61 and lower box 62, be equipped with the opening on the last box 61, the top of going up box 61 is equipped with collects and fights 64, collect and fight 64 bottom and be equipped with the delivery port, the delivery port downwardly extending is to in the opening of supreme box 61, be equipped with drainage channel 63 between last box 61 and the lower box 62, the bottom of going up box 61 is equipped with the bottom plate 65 of slant setting, be equipped with the filter plate 66 that a plurality of slopes set up on the inside lateral wall of last box 61, the bottom of lower box 62 is equipped with the water pipe that links joint current ware 17.

Preferably, the condensed water collecting box 6 is used for collecting condensed water dripping from the heat sink of the outdoor heat exchanger 51, when the condensed water of the spraying device 40 is sprayed on the heat sink, a part of the condensed water is evaporated under high temperature, a part of the condensed water is left on the heat sink, and the rest of the condensed water is dripped to the place, which causes the waste of the condensed water, and the condensed water also needs to be recycled, so that the condensed water collecting box 6 is provided, the dripped condensed water is collected by the collecting hopper 64, the collected condensed water is transmitted into the upper box body 61 through the water outlet after being collected by the collecting hopper 64, the condensed water transmitted from the water outlet passes through the filter screen plate 66, the filter screen plate 66 can filter the condensed water, large-particle impurities are filtered, the condensed water dripping from the filter screen plate 66 flows into the drainage channel 63 under the action of the obliquely arranged bottom plate 65, and is transmitted into the lower, the condensed water in the lower tank 62 will finally flow back to the first water storage tank 11 through the water pipe and the confluence device 17, and the recovery of the condensed water is completed.

As shown in fig. 4: the collecting hopper 64 comprises a framework 641 and a flexible film 642 covering the framework 641, the drainage channel 63 is arranged at the bottom of the upper box body 61, the filter screen plate 66 is positioned above the drainage channel 63, the bottom of the lower box body 62 is provided with a filter bottom plate 67, the filter holes of the filter bottom plate 67 are smaller than the filter holes of the filter screen plate 66, the upper box body 61 is also provided with a cleaning spray head 68, the cleaning spray head 68 is provided with a water pipe communicated with the second water storage tank 12, and the water pipe is provided with a seventh water pump 26.

Optimized, collect and fight 64 by skeleton 641 and cladding in the outside flexible tectorial membrane 642 of skeleton 641 and constitute, collect and fight 64 and be the umbelliform, skeleton 641 can draw in foldingly, can fold up when not needing to use, reduce occupation space, the bottom of lower box 62 is equipped with filter bottom plate 67, filter bottom plate 67's filtration pore will be less than the filtration pore of filtering otter board 66, can form multi-stage filtration, effectively improve the filter effect, filter otter board 66 and use a period, when needing to wash, can wash through washing shower nozzle 68, utilize the comdenstion water of retrieving in the second water storage box 12 to wash, make full use of the comdenstion water of retrieving.

s1, setting a lower water temperature limit, an upper first water level limit and a lower first water level limit of the third water storage tank 13; setting a first upper water level limit and a second lower water level limit of the second water storage tank 12; while setting the upper limit of the third water level in the fifth reservoir 15

S2, when the temperature sensing device 31 detects that the temperature in the third water storage tank 13 is kept at the upper limit of the water temperature, the water temperature in the third water storage tank 13 does not need to be increased, at the moment, the main controller 18 controls the first water pump 20 and the second water pump 21 to be started, closes the channel between the flow divider 16 and the fifth water storage tank 15, and opens the channel between the first refrigerator 32 and the first water storage tank 11, at the moment, the condensed water collected on the heat exchanger 30 passes through the flow combiner 17, the first water storage tank 11, the flow divider 16, the first refrigerator 32 and the second water storage tank 12 in sequence, and finally the cooled condensed water is sent back to the heat exchanger 30;

s2, when the temperature sensing device 31 detects that the temperature in the third water storage tank 13 is lower than the upper limit of the water temperature, the water temperature in the third water storage tank 13 needs to be increased, at this time, the main controller 18 controls the flow divider 16 to close the channel between the first water storage tank 11 and the first refrigerator 32, open the channel between the first water storage tank 11 and the fifth water storage tank 15, the first water storage tank 11 enters the fifth water storage tank 15 under the action of the first water pump 20, at this time, the third liquid level sensing device 29 detects the water level in the fifth water storage tank 15, if the water level in the fifth water storage tank 15 is lower than the upper limit of the third water level, the main controller 18 keeps closing the seventh water pump 26 until the water level of the fifth water storage tank 15 is higher than the upper limit of the third water level, if the water level in the fifth water storage tank 15 is higher than the upper limit of the third water level, the sixth water pump 25 is opened and the condensed water is input into the third water storage tank 13, at the same time, the water level in the third water storage tank 13 is, opening the water outlet and discharging the condensed water to the first refrigerator 32, and simultaneously opening the heater 50 to heat the condensed water until the temperature in the third water storage tank 13 is higher than the lower limit of the water temperature;

s3, when the water level in the third water storage tank 13 is lower than the first lower water level limit, if the water level in the fifth water storage tank 15 is higher than the third upper water level limit, the sixth water pump 25 is started to lead the inward condensed water in the fifth water storage tank 15 into the third water storage tank 13, if the water level in the fifth water storage tank 15 is lower than the third upper water level limit or the water in the fifth water storage tank 15 is not enough to fill the water in the third water storage tank 13, the main controller 18 controls the fourth water pump 23 to be started to input the water in the fourth water storage tank 14 into the third water storage tank 13 until the water in the third water storage tank 13 is higher than the first lower water level limit;

s4, when the water in the second water storage tank is lower than the first water level lower limit, the main controller 18 starts the fifth water pump 24, the water in the fourth water storage tank 14 is cooled by the second refrigerator 33 and then is input into the second water storage tank 12 until the water in the second water storage tank 12 is higher than the first water level lower limit, and when the water in the second water storage tank is lower than the first water level upper limit, the main controller 18 controls the third water pump 22 to start, the water in the second water storage tank 12 is input into the spraying device 40, the spraying device 40 sprays the water onto the heat sink of the outdoor heat exchanger 51, and the water which is not evaporated on the outdoor heat exchanger 51 is collected into the first water storage tank 11 through the condensed water collection tank 6.

The above-mentioned embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained by those skilled in the art based on the above-mentioned embodiments should also belong to the protection scope of the present invention without any creative effort, so that: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a system for high efficiency recycle central air conditioning comdenstion water which characterized in that: the method comprises the following steps:

the fresh air unit (10) is used for processing the air extracted outdoors and then sending the processed air to the indoor;

the heat exchanger (30) is used for carrying out heat exchange on air extracted by the fresh air unit (10);

the first water storage tank (11) is used for collecting and storing condensed water flowing out of the heat exchanger (30), a flow combiner (17) is arranged between the first water storage tank (11) and the heat exchanger (30), and an eighth water pump (34) is arranged between the first water storage tank (11) and the flow combiner (17);

the circulating water tank (70) is used for placing the greening planting module (74), the circulating water tank (70) is connected with the first water storage tank (11), and the condensed water in the first water storage tank (11) is transmitted to the greening planting module (74);

the first refrigerator (32) is used for cooling the condensed water conveyed in the first water storage tank (11), and a flow divider (16) is arranged between the first refrigerator (32) and the first water storage tank (11);

the second water storage tank (12) is used for collecting and storing condensed water and conveying the condensed water to the heat exchanger (30);

the third water storage tank (13) is used for storing hot water, the third water storage tank (13) is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet is connected with the first water storage tank (11), the second water inlet is connected with a fourth water storage tank (14) through a water pipe, and the water outlet is connected with the first refrigerator (32);

the fifth water storage tank (15) is used for storing condensed water, a first water inlet of the fifth water storage tank (15) is connected with the flow divider (16), a water outlet of the fifth water storage tank (15) is connected with the third water storage tank (13), a second water inlet of the fifth water storage tank (15) is connected with the third water storage tank (13), and a sixth water pump (25) is further arranged between the fifth water storage tank (15) and the third water storage tank (13).

2. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 1, wherein: the circulating water tank (70) comprises an upper water tank (71), a lower water tank (72) and a plurality of greening frames (73) arranged between the upper water tank (71) and the lower water tank (72), each greening frame (73) is divided into a plurality of layers, a plurality of greening planting modules (74) are placed on the upper surface of each layer of greening frame (73), an irrigation pipe (75) is arranged on the lower surface of each layer of greening frame (73), an irrigation opening (76) corresponding to the greening planting modules (74) is formed in the irrigation pipe (75), a water pipe connected with the irrigation pipe (75) is arranged at the bottom of the upper water tank (71), an eleventh water pump (78) is arranged between the upper water tank (71) and the irrigation pipe (75), an opening for receiving the dripped condensate water on the irrigation opening (76) is formed in the top of the lower water tank (72), a water pipe connected with the first water storage tank (11) is arranged at the bottom of the lower water tank (72, a twelfth water pump (79) is arranged between the lower water tank (72) and the first water storage tank (11).

3. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 2, wherein: the first water storage tank (11) is also provided with a main controller (18), the main controller (18) is connected with an eleventh water pump (78) and a twelfth water pump (79), the upper water tank (71) is provided with a greening water tank (39), nutrient solution is stored in the greening water tank (39), a ninth water pump (35) is arranged between the greening water tank (39) and the upper water tank (71), a tenth water pump (77) is arranged between the upper water tank (71) and the first water storage tank (11), a control device is arranged between the tenth water pump (34) and the ninth water pump (35), the control device can control the ninth water pump (35) and the tenth water pump (77) to deliver nutrient solution and condensed water according to a selected ratio by inputting the ratio of the nutrient solution and the condensed water, the control device comprises a main regulating valve (36) connected with the tenth water pump (77) and an auxiliary regulating valve (37) connected with the ninth water pump (35), the control device further comprises a sub-controller (19) used for controlling the sub-regulating valve (37), the main controller (18) controls the main regulating valve (36) to operate, the main controller (18) is connected with the sub-controller (19) and controls the sub-controller (19) to operate, the main controller (18) controls the main regulating valve (36) to operate according to a selected proportioning value, meanwhile, the main controller (18) controls the sub-controller (19) to operate, the sub-controller (19) controls the sub-regulating valve (37) to operate according to a command sent by the main controller (18) according to the selected proportioning value, a flow detection device (38) used for detecting and feeding back the flow of a tenth water pump is further arranged on the tenth water pump (77), an adjusting device is arranged on the sub-controller (19) and used for receiving the total flow value fed back by the flow detection device (38) and comparing the total flow value with the selected proportioning value to obtain a difference signal, and feeding the difference signal back to the main controller (18), wherein the main controller (18) controls the operation of the main regulating valve (36) and simultaneously controls the operation of the sub-controller (19) according to the difference signal, and the sub-controller (19) adjusts the flow of the sub-regulating valve (37) according to the difference signal sent by the main controller (18) and the ratio.

4. A system for recycling condensed water of a central air conditioner with high efficiency according to claim 3, characterized in that: the second water storage tank (12) is connected with a spraying device (40) through a water pipe, the spraying device (40) is arranged on the outdoor unit heat exchanger (51) and is used for spraying condensed water in the second water storage tank (12) onto the radiating fins of the outdoor unit heat exchanger (51) to accelerate cooling of the radiating fins; the water-saving type water-saving cooling system is characterized in that the first water storage tank (11), the flow divider (16) and the first refrigerator (32) are sequentially connected through a water pipe, a first water pump (20) is arranged on a water pipe between the first water storage tank (11) and the flow divider (16), condensed water in the first water storage tank (11) is conveyed into the first refrigerator (32) through the first water pump (20) and the flow divider (16), a second water pump (21) is arranged between the second water storage tank (12) and the heat exchanger (30), a third water pump (22) is arranged between the second water storage tank (12) and the spraying device (40), the condensed water in the second water storage tank (12) is conveyed into the spraying device (40) through the third water pump (22), a fourth water pump (23) is arranged between the fourth water storage tank (14) and the third water storage tank (13), and a second refrigerator (33) is arranged between a second water outlet of the fourth water storage tank (14) and the second water storage tank (12), a fifth water pump (24) is arranged between the second refrigerator (33) and the fourth water storage tank (14).

5. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 4, wherein: the water level sensor is characterized in that a first liquid level sensing device (27) is arranged in the second water storage tank (12), a third liquid level sensing device (29) is arranged in the fifth water storage tank (15), a second liquid level sensing device (28) and a heater (50) are arranged in the third water storage tank (13), the heater (50) is connected with a main controller (18), and the main controller (18) is respectively connected with a flow divider (16), a flow combiner (17), a first water pump (20), a second water pump (21), a third water pump (22), a fourth water pump (23), a fifth water pump (24), a sixth water pump (25), a temperature sensing device (31), the first liquid level sensing device (27), the second liquid level sensing device (28) and the third liquid level sensing device (29).

6. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 5, wherein: sprinkler (40) include casing (41), the cross-section of casing (41) is 7 types, casing (41) inside is equipped with tubulose cavity (42), the one end of tubulose cavity (42) runs through the one end of casing (41) and leads to pipe and is connected with second water storage tank (12), the other end of casing (41) is equipped with jet (43), the other end of tubulose cavity (42) extends to jet (43), the one end that casing (41) is close to jet (43) is equipped with installing port (44), be equipped with on installing port (44) and divide water tray (45) that the cross-section is circular shape, the periphery of dividing water tray (45) is equipped with collar (46) with installing port (44) adaptation, divide and seted up a plurality of watering holes (47) on water tray (45).

7. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 6, wherein: watering hole (47) evenly distributed is on dividing water dish (45), watering hole (47) include interior cavity (471), outer cavity (472) and connect interior cavity (471) and outer cavity (472) connect cavity (473), the diameter of interior cavity (471) reduces along water flow injection direction gradually, the diameter of outer cavity (472) increases along water flow injection direction gradually, it is hollow cylindrical cavity to connect cavity (473).

8. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 7, wherein: the outdoor unit heat exchanger is characterized in that a condensed water collecting box (6) is arranged at the bottom of the outdoor unit heat exchanger (51), the condensed water collecting box (6) comprises an upper box body (61) and a lower box body (62), an opening is formed in the upper box body (61), a collecting hopper (64) is arranged at the top of the upper box body (61), a water outlet is formed in the bottom of the collecting hopper (64), the water outlet extends downwards into the opening of the upper box body (61), a drainage channel (63) is arranged between the upper box body (61) and the lower box body (62), a bottom plate (65) is obliquely arranged at the bottom of the upper box body (61), a plurality of obliquely arranged filter screen plates (66) are arranged on the side wall inside the upper box body (61), and a water pipe connected with a flow connector (17) is arranged at.

9. The system for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 8, wherein: the collecting hopper (64) comprises a framework (641) and a flexible covering film (642) coated outside the framework (641), the drainage channel (63) is arranged at the bottom of the upper box body (61), the filter screen plate (66) is positioned above the drainage channel (63), the bottom of the lower box body (62) is provided with a filter bottom plate (67), the filter holes of the filter bottom plate (67) are smaller than the filter holes of the filter screen plate (66), the upper box body (61) is also provided with a cleaning spray head (68), the cleaning spray head (68) is provided with a water pipe communicated with the second water storage tank (12), and the water pipe is provided with a seventh water pump (26).

10. The method for recycling condensed water of a central air conditioner with high efficiency as claimed in claim 1, wherein the method comprises the following steps:

the method comprises the following steps:

s1, setting a lower water temperature limit, a first upper water level limit and a first lower water level limit of the third water storage tank (13); setting a first upper water level limit and a second lower water level limit of a second water storage tank (12); setting a third upper limit of the water level in the fifth water storage tank (15) at the same time;

s2, when the temperature sensing device (31) detects that the temperature in the third water storage tank (13) is kept at the upper limit of the water temperature, the water temperature in the third water storage tank (13) does not need to be increased, at the moment, the main controller (18) controls the first water pump (20) and the second water pump (21) to be started, the channel between the flow divider (16) and the fifth water storage tank (15) is closed, the channel between the first refrigerator (32) and the first water storage tank (11) is started, at the moment, condensate water collected on the heat exchanger (30) sequentially passes through the flow combiner (17), the first water storage tank (11), the flow divider (16), the first refrigerator (32) and the second water storage tank (12), and finally the cooled condensate water is fed back into the heat exchanger (30);

s2, when the temperature sensing device (31) detects that the temperature in the third water storage tank (13) is lower than the upper limit of the water temperature, the water temperature in the third water storage tank (13) needs to be increased, at the moment, the main controller (18) controls the flow divider (16) to close the channel between the first water storage tank (11) and the first refrigerator (32), open the channel between the first water storage tank (11) and the fifth water storage tank (15), the first water storage tank (11) enters the fifth water storage tank (15) under the action of the first water pump (20), at the moment, the third liquid level sensing device (29) detects the water level in the fifth water storage tank (15), if the water level in the fifth water storage tank (15) is lower than the upper limit of the third water level, the main controller (18) closes the seventh water pump (26) until the water level of the fifth water storage tank (15) is higher than the upper limit of the third water level, if the water level in the fifth water storage tank (15) is higher than the upper limit of the third water, then the sixth water pump (25) is started and the condensed water is input into the third water storage tank (13), meanwhile, when the water level in the third water storage tank (13) is higher than the first upper water level limit in the process, the water outlet is started and the condensed water is discharged to the first refrigerator (32), and meanwhile, the heater (50) is started to heat the condensed water until the temperature in the third water storage tank (13) is higher than the lower water temperature limit;

s3, when the water level in the third water storage tank (13) is lower than the first lower water level limit, if the water level in the fifth water storage tank (15) is higher than the third upper water level limit, the sixth water pump (25) is started, the inward condensed water in the fifth water storage tank (15) is guided into the third water storage tank (13), if the water level in the fifth water storage tank (15) is lower than the third upper water level limit or the water in the fifth water storage tank (15) is not enough to fill the water in the third water storage tank (13), the main controller (18) controls the fourth water pump (23) to be started, the water in the fourth water storage tank (14) is input into the third water storage tank (13) until the water level in the third water storage tank (13) is higher than the first lower water level limit;

s4, when the water in the two water storage tanks is lower than the first water level lower limit, the main controller (18) starts the fifth water pump (24), the water in the fourth water storage tank (14) is cooled by the second refrigerator (33) and then is input into the second water storage tank (12) until the water in the second water storage tank (12) is higher than the first water level lower limit, and the water in the second water storage tank is lower than the first water level upper limit, the main controller (18) controls the third water pump (22) to be started, the water in the second water storage tank (12) is input into the spraying device (40), the spraying device (40) sprays the water onto the radiating fins of the outdoor unit heat exchanger (51), and the water which cannot be evaporated on the outdoor unit heat exchanger (51) is collected into the first water storage tank (11) through the condensed water collection tank (6).