Water circulation energy-saving device for air conditioner refrigeration

By designing a water circulation energy-saving device for air conditioning and refrigeration including water circulation and spray structure, the rotation rod and fan blade are driven by the gravity potential energy and wind energy of the cooling water to achieve stirring and blowing and heat dissipation of the cooling water, the existing technology is solved The problem of slow heat dissipation of cooling water improves the cooling effect of the air conditioner external unit and reduces energy consumption.

CN119436535APending Publication Date: 2025-02-14DONGGUAN HONGCHENG EQUIPMENT CO LTD
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Patent Information

Application Number
CN202411690328.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

In the existing air-conditioning refrigeration water circulation energy-saving device, the high-temperature heat of the cooling water is naturally cooled or emitted by evaporation, and the cooling cycle is long, and it cannot effectively stir and turn and blow the air and dissipate heat, resulting in the heat carried by the cooling water failing to dissipate heat quickly, affecting the air-conditioning external unit. Cooling and cooling effect on the surface.

Method used

A water circulation energy-saving device for air conditioning and refrigeration including a first water storage pool, an air conditioning external unit, a water circulation mechanism, a water guide mechanism and a spray structure is designed. The second water storage tank is connected to the second water storage tank through the second water storage tank, and a rotating mechanism is provided in the second water storage tank. The rotation rod is driven to drive the fan blade to rotate by using the gravity potential energy of the cooling water to achieve stirring the cooling water and blowing and heat dissipation. At the same time, the water spray pipe and atomizing nozzle are used to spray cooling water to expand the cooling range.

Benefits of technology

Through mixing and blowing heat dissipation technology, the cooling speed of cooling water is significantly accelerated, the cooling effect of the air conditioner external unit is improved, energy consumption is reduced, and all-round cooling and cooling on the surface and surrounding air conditioner external unit is achieved.

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Abstract

The invention relates to the technical field of air conditioner refrigeration, in particular to an air conditioner refrigeration water circulation energy-saving device which comprises a first water containing pool and an air conditioner outdoor unit at the top end of the first water containing pool and further comprises a water circulation mechanism, a water guide mechanism and a spraying structure. The water circulation mechanism comprises a second water guide pipe and a second water containing pool; sunlight can be shielded above the air conditioner outdoor unit through the second water containing pool and the supporting box, and the surface of the air conditioner outdoor unit and air around the air conditioner outdoor unit are kept unblocked. Air blowing heat dissipation and water mist spraying cooling can be conducted on the surface and the periphery of the air conditioner outdoor unit, and electric energy is saved; the first rotating mechanism and the second rotating mechanism are driven by wind energy to rotate, electric energy is saved, rapid heat dissipation of cooling water carrying heat is accelerated, the blowing heat dissipation speed of the surface and the periphery of the air conditioner outdoor unit is increased, the cooling effect of the air conditioner outdoor unit is improved, and energy conservation and emission reduction of the central air conditioner are facilitated.
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Description

Technical Field

[0001] The invention relates to the technical field of air conditioning and refrigeration, and in particular to an air conditioning and refrigeration water circulation energy-saving device. Background Art

[0002] The indoor unit of the air conditioner often produces some condensed water during operation, which is generally discharged through a special drainage pipe and can be connected to the outdoor unit of the air conditioner through a condensed water pipe, and the outdoor unit of the air conditioner can be water-cooled. The temperature of the condensed water produced by the indoor unit of the air conditioner can generally be between 10℃ and 15℃.

[0003] In addition, the amount of condensed water generated by the air-conditioning system is also considerable. For example, in a large shopping mall, 20 air conditioners with a rated cooling capacity of 3500W can produce 48.6kg of condensed water per hour, which has certain potential for water resource recycling and can be used for water recycling.

[0004] Air conditioners can be divided into household air conditioners and central air conditioners. Large central air conditioners are usually used in large shopping malls or commercial buildings. This type of air conditioner has a good cooling effect and can cover a relatively large space. The outdoor unit of the large air conditioner usually uses water circulation to cool the outdoor unit during cooling. The condensed water generated by the indoor unit of the air conditioner can be collected into the water circulation system for recycling.

[0005] Large air-conditioning outdoor units are generally placed on the roof of commercial buildings, which has ample space and is at a suitable height, allowing for unobstructed air flow, making it easier for the air-conditioning outdoor units to dissipate heat and exchange heat.

[0006] The cooling method used for central air conditioning is: by spraying cooling water on the outdoor unit, the cooling water flows downward along the surface of the outdoor unit to complete the cooling of the outdoor unit; therefore, it is necessary to dissipate heat and cool the outdoor unit of the central air conditioner in order to reduce the energy consumption of the central air conditioner.

[0007] In the existing air-conditioning refrigeration water circulation energy-saving device, after the cooling water is sprayed on the air-conditioning outdoor unit for cooling, it returns to the water storage tank, and the high-temperature heat carried in the cooling water is generally cooled naturally, or the heat is dissipated to the outside by evaporation. The cooling cycle is long, and the cooling water carrying the heat cannot be stirred and turned or blown to dissipate the heat. The heat carried by the cooling water cannot be dissipated quickly, resulting in a poor cooling effect on the surface of the air-conditioning outdoor unit. At the same time, the heat generated by the air-conditioning outdoor unit is poorly cooled by cooling water alone. The surface and surrounding of the air-conditioning outdoor unit cannot be blown or sprayed with water mist to dissipate the heat, and the heat flow speed on the surface of the air-conditioning outdoor unit cannot be accelerated, which is not conducive to the heat loss on the surface of the air-conditioning outdoor unit and its own cooling. Summary of the invention

[0008] The purpose of the present invention is to provide an air conditioning refrigeration water circulation energy-saving device to solve the problem that the high-temperature heat carried in the cooling water is generally cooled naturally, or the heat is dissipated to the outside by evaporation, the cooling cycle is long, and the cooling water carrying the heat cannot be stirred and tumbled or blown to dissipate the heat.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air-conditioning refrigeration water circulation energy-saving device, comprising a first water tank and an air-conditioning outdoor unit at its top, and also comprising a water circulation mechanism, a water guiding mechanism and a spray structure; the water circulation mechanism comprises a second water guiding pipe and a second water tank, the second water tank is arranged above the air-conditioning outdoor unit, a circulation pump is installed on one side of the interior of the first water tank, the top of the circulation pump is connected to the bottom of the second water guiding pipe, and the top of the second water guiding pipe is vertically inserted into the interior of the second water tank; the water guiding mechanism comprises a condensation water pipe and a first water guiding pipe, a condensation water pipe passes through the middle of the second water tank, the side of the condensation water pipe is connected to the first water guiding pipe, the other end of the first water guiding pipe is connected to the second water tank, a water collection box is fixed to the bottom end of the condensation water pipe, and a first rotating mechanism is arranged at the bottom end of the water collection box; the first rotating mechanism comprises a downpipe and a water receiving box, the top of the water downpipe is plug-connected with the bottom end of the water collection box, the water receiving box is fixedly connected to the bottom end of the water downpipe, a water spray pipe is arranged around the water receiving box, an atomizing nozzle is installed on the surface of the water spray pipe, a wind wheel blade is fixed on the outer end of the water spray pipe, a connecting rod is fixed on the bottom end of the wind wheel blade, a rotating sheet is fixed on the surface of the connecting rod, and a second rotating mechanism is arranged in the middle of the water downpipe; the second rotating mechanism includes a rotating rod, the rotating rod rotates through the middle of the water downpipe, first fan blades are fixed on both ends of the rotating rod, and a second fan blade is fixed on the surface of the rotating rod at a position between the first fan blade and the water downpipe; the spray structure includes a supporting box, the supporting box is installed on the top end of the air-conditioning outdoor unit and is located at the bottom end of the first rotating mechanism, water spray holes are opened at the bottom end of the supporting box, and the water spray holes are distributed at the top end of the air-conditioning outdoor unit.

[0010] Furthermore, a first support column is fixed to the bottom end of the air conditioner outdoor unit, and the bottom end of the first support column is arranged inside the first water tank. Second support columns are fixed at the four corners of the bottom end of the second water tank, and the bottom end of the second support column is flush with the bottom end of the first water tank and is adjacent to the outside of the first water tank. The water collection box is a rectangular box structure and is vertically arranged. A reinforcement rod is fixed between its outer bottom end and the second support column, and the reinforcement rod is horizontally arranged above the rotating rod.

[0011] Furthermore, the top of the water collection box is connected to the bottom end of the condensation water pipe, a plug-in tube is fixed to the bottom edge of the water collection box, a plug-in tube is connected to the middle of the bottom end of the water collection box, the top of the water downpipe is slidably inserted into the interior of the plug-in tube, a sealing gasket is bonded to the top of the water downpipe, the sealing gasket is located between the top of the water downpipe and the bottom end of the water collection box, a first slide groove is opened on the top edge of the water downpipe, the first slide groove is a circular groove structure, and the cross-section is a semicircular structure, a first ball is slidably installed inside the first slide groove, the first ball is rollingly arranged between the top of the water downpipe and the bottom end of the water collection box, and is located on the outside of the sealing gasket.

[0012] Furthermore, the water cylinder is a cylindrical structure and is vertically arranged. A rotating hole for rotating through the rotating rod is opened in the middle of the water cylinder. The rotating hole horizontally penetrates the surface of the water cylinder. A water wheel blade is fixed in the middle of the surface of the rotating rod and located inside the water cylinder. A bearing is installed on the surface of the rotating rod and located inside the rotating hole. A sealing ring is arranged on the outside of the bearing. The sealing ring is tightly arranged between the rotating rod and the rotating hole. The rotating rod is rotatably connected to the water cylinder through the bearing.

[0013] Furthermore, the water receiving box is a circular structure and is arranged horizontally, a small boosting pump is installed in the middle of the interior of the water receiving box, the bottom end of the small boosting pump is fixed with a first pad connected to the bottom end of the interior of the water receiving box, the inner end of the water spray pipe is connected to the side of the small boosting pump, the wind wheel blade is a rectangular structure and is vertically arranged around the water receiving box, the connecting rod is vertically arranged on the outside of the air conditioner outdoor unit, and its bottom end is slidably arranged on the inner bottom end of the first water tank, and the rotating sheet is a rectangular structure, and is respectively located inside the first water tank and around the air conditioner outdoor unit.

[0014] Furthermore, a rotating ring is fixed on the bottom edge of the water receiving box, and a second slide groove is opened at the bottom end of the rotating ring. The second slide groove is a circular ring groove structure, and the cross-section is a semicircular structure. A third water pipe is connected to the middle of the bottom end of the water receiving box, and a limiting ring is fixed on the top of the support box. The limiting ring is a circular ring structure and is horizontally arranged. A rotating groove is opened on the top of the limiting ring. The rotating groove is a circular ring groove structure. The bottom end of the rotating ring is slidably inserted into the rotating groove, and a second ball is slidably installed inside the second slide groove. The second ball is located between the bottom end of the rotating ring and the inner bottom end of the rotating groove.

[0015] Furthermore, the support box is a rectangular structure with a water inlet hole in the middle of its top, the bottom end of the third water pipe is inserted into the water inlet hole, the surface of the third water pipe and the position at the top of the water inlet hole are connected with a water retaining ring, second pads are fixed at the four corners of the bottom end of the support box, the second pads are fixed to the top of the air-conditioning outdoor unit, the support box gap is set at the top of the air-conditioning outdoor unit, and its length and width dimensions are not less than the length and width dimensions of the air-conditioning outdoor unit.

[0016] Furthermore, the first water tank is a rectangular structure and is horizontally arranged, the air-conditioning outdoor unit is a rectangular structure and is vertically arranged, the second water tank is a rectangular ring structure and is horizontally arranged, and its length and width are both larger than the length and width of the first water tank, and the water spray holes are evenly distributed at the bottom end of the support box and downward toward the top of the air-conditioning outdoor unit.

[0017] Furthermore, the water collection box is located below the middle of the second water storage tank and is connected to the downspout. The water spray pipes are evenly distributed horizontally around the water collection box, and the atomizing nozzles are evenly distributed around the water spray pipes.

[0018] Furthermore, the rotating rod is horizontally arranged above the water spray pipe, the water wheel blades are evenly distributed on the surface of the rotating rod and are arranged with a gap between them and the inner wall of the downpipe, the first fan blade is a spiral blade structure and faces the outer sides of both ends of the rotating rod, and the second fan blade is a rectangular structure and is evenly distributed on the surface of the rotating rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, the air conditioner outdoor unit is arranged above the first water tank, and the second water tank is arranged above the air conditioner outdoor unit, the first water tank and the second water tank are connected through the second water conduit, and the first rotating mechanism and the second rotating mechanism are rotatably installed on the top of the support box in the middle and lower part of the second water tank, and the gap of the support box is covered above the air conditioner outdoor unit, and cooling water is sprayed to the top of the air conditioner outdoor unit through the water spray hole, so that the cooling water flows from the top of the air conditioner outdoor unit to its surrounding surface, which can absorb the heat on the surface of the air conditioner outdoor unit and cool the surface of the air conditioner outdoor unit. The cooling water that absorbs and carries the heat falls into the first water tank for heat dissipation and recycling. Therefore, the second water tank and the support box can block sunlight above the air conditioner outdoor unit, and the air conditioner outdoor unit is supported by the first support column and arranged between the first water tank and the second water tank, and the large air conditioner outdoor unit of the central air conditioner is installed on the roof of the commercial building and has a certain height, so that the surface of the air conditioner outdoor unit and the surrounding air can be kept unobstructed.

[0021] 2. In the present invention, the condensate pipe is connected with the water collection box at the bottom, so that the condensate generated during the use of the indoor unit of the air conditioner can be introduced into the water collection box for recycling. At the same time, the cooling water in the second water storage tank enters the water collection box through the first water guide pipe and the condensate pipe, so that more cooling water is stored in the water collection box, and the cooling water flows downward into the water dropper due to its own weight, and impacts the water wheel blades downward, so that the water wheel blades drive the rotating rod to rotate. Therefore, the gravitational potential energy of the cooling water is converted into the mechanical energy of the rotating rod, which can save electric energy. In this way, the rotating rod drives the first fan blade to rotate, and the rotating rod drives the first fan blade to rotate. The two ends of the rotating rod blow air outward to accelerate the air circulation around the air conditioner outdoor unit, which is helpful for heat dissipation and cooling of the air conditioner outdoor unit. At the same time, the rotating rod drives the second fan blade to rotate and blow air around the surface of the rotating rod, which can not only blow away the heat generated by the air conditioner outdoor unit and accelerate the heat loss on the surface of the air conditioner outdoor unit, but also disperse the water mist sprayed by the water spray pipe and the atomizing nozzle, expand the diffusion range of the cooling water mist, and perform water mist cooling and cooling on a large scale around the air conditioner outdoor unit. Therefore, the surface and surrounding of the air conditioner outdoor unit can be cooled by blowing heat and spraying water mist, and electric energy can be saved.

[0022] 3. In the present invention, a small booster pump is installed in the water receiving box, and is connected to the water receiving box with a water spray pipe around it, and atomizing nozzles are evenly arranged on the surface of the water spray pipe. At the same time, a wind wheel blade is fixed on the outer side of the extended end of the water spray pipe, and a connecting rod is fixed at the bottom end of the wind wheel blade. The connecting rod surrounds the air-conditioning outdoor unit and is inserted into the first water storage tank. In addition, a rotating sheet is fixed on the surface of the connecting rod, and the rotating sheet is distributed around the air-conditioning outdoor unit and inside the first water storage tank. Since the large air-conditioning outdoor unit of the central air-conditioning is installed on the roof of the commercial building, it has a certain height and there is a certain air flow, which will form wind flows in different directions. Therefore, wind flows in different directions can blow the wind wheel blades and drive the water receiving box and the downpipe to rotate through the water spray pipe. Therefore, the rotating rod and the first fan blade and the second fan blade on the surface can be driven to rotate horizontally with the downpipe as the center, so that the rotating rod, the first fan blade and the second fan blade can rotate themselves through the gravitational potential energy of the cooling water. , and can be blown around the downpipe by the wind energy of the wind flow to rotate, which can increase the blowing range of the first fan blade and the second fan blade, and improve the blowing and heat dissipation capacity of the air conditioner outdoor unit, and the wind wheel blade drives the connecting rod and the rotating sheet to rotate around the air conditioner outdoor unit, and can stir and turn the cooling water carrying heat in the first water tank to accelerate the heat dissipation speed of the cooling water, and can also blow the cooling water around the surface of the air conditioner outdoor unit and flowing around the surface of the air conditioner outdoor unit, which can not only accelerate the heat dissipation speed of the cooling water carrying heat, but also blow and dissipate heat around the surface of the air conditioner outdoor unit. In this way, the wind energy blown on the roof of the commercial building is used to drive the first rotating mechanism and the second rotating mechanism to rotate, save electric energy, accelerate the rapid heat dissipation of the cooling water carrying heat, improve the blowing and heat dissipation speed of the surface and surroundings of the air conditioner outdoor unit, improve the cooling effect of the air conditioner outdoor unit, and improve the refrigeration efficiency of the air conditioner indoor unit of the central air conditioner to the interior of the commercial building, reduce energy consumption, and benefit the energy saving and emission reduction of the central air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A partial side view of a water collection box and a support box;

[0025] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0026] Figure 4 For the present invention Figure 2 A top view of

[0027] Figure 5 For the present invention Figure 1 A schematic diagram of the partial structure of the first rotating mechanism and the second rotating mechanism;

[0028] Figure 6 For the present invention Figure 1 A schematic diagram of the partial structure of the first rotating mechanism and the second rotating mechanism;

[0029] Figure 7 For the present invention Figure 6 The enlarged view of point B;

[0030] Figure 8 For the present invention Figure 6 A schematic diagram of the structure of a second rotating mechanism portion;

[0031] Fig. 9 For the present invention Figure 6 Schematic diagram of the downspout structure;

[0032] Fig.10 For the present invention Figure 1 Schematic diagram of the water receiving box part structure.

[0033] In the figure: 1, first water tank; 2, air conditioner outdoor unit; 3, first support column; 4, circulation pump; 5, rotating sheet; 6, second water guide pipe; 7, connecting rod; 8, support box; 9, wind wheel blade; 10, water receiving box; 11, second fan blade; 12, reinforcement rod; 13, second water tank; 14, condensation water pipe; 15, second support column; 16, first fan blade; 17, rotating ring; 18, limit ring; 19, water downpipe; 20, rotating hole; 21, rotating rod; 22, shaft Bearing; 23, water box; 24, water pipe; 25, atomizing nozzle; 26, plug-in tube; 27, plug-in tube; 28, first water pipe; 29, water spray hole; 30, second cushion block; 31, rotating groove; 32, water inlet hole; 33, water retaining ring; 34, third water pipe; 35, second slide groove; 36, first cushion block; 37, small booster pump; 38, second ball; 39, first slide groove; 40, first ball; 41, sealing gasket; 42, sealing ring; 43, water wheel blade. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8, Fig. 9 and Fig.10 The air conditioning refrigeration water circulation energy-saving device shown in the figure includes a first water storage tank 1 and an air conditioning outdoor unit 2 at the top thereof, and also includes a water circulation mechanism, a water guide mechanism and a spray structure; the water circulation mechanism includes a second water guide pipe 6 and a second water storage tank 13, the top of the second water guide pipe 6 is vertically inserted into the interior of the second water storage tank 13, the water guide mechanism includes a condensation water pipe 14 and a first water guide pipe 28, the bottom end of the condensation water pipe 14 is fixed with a water collection box 23, and the bottom end of the water collection box 23 is provided with a device for blowing cooling water. A first rotating mechanism for heat dissipation, the first rotating mechanism includes a water dropper 19 that gives cooling water gravitational potential energy and a water receiving box 10 for atomizing and spraying cooling water, a second rotating mechanism is arranged in the middle of the water dropper 19, the second rotating mechanism includes a rotating rod 21 driven to rotate by the gravitational potential energy of the water flow, the rotating rod 21 rotates through the middle of the water dropper 19, the spray structure includes a supporting box 8 for receiving cooling water, the supporting box 8 is installed at the top of the air-conditioning outdoor unit 2, and is located at the bottom of the first rotating mechanism.

[0036] The first water tank 1 is a rectangular structure and is arranged horizontally, and the air-conditioning outdoor unit 2 is a rectangular structure and is arranged vertically; a second water tank 13 is arranged above the air-conditioning outdoor unit 2, and the second water tank 13 is a rectangular ring structure and is arranged horizontally, and its length and width dimensions are both larger than the length and width dimensions of the first water tank 1.

[0037] A first support column 3 is fixed to the bottom end of the air-conditioning outdoor unit 2, and the bottom end of the first support column 3 is arranged inside the first water tank 1, and can be connected by welding or connecting parts to maintain the stable setting of the air-conditioning outdoor unit 2; a circulation pump 4 is installed on one side of the inside of the first water tank 1, and a second water pipe 6 is connected to the top of the circulation pump 4, and the top of the second water pipe 6 is vertically inserted into the inside of the second water tank 13, and the cooling water inside the first water tank 1 is introduced into the inside of the second water tank 13 through the circulation pump 4 for circulation.

[0038] Second support columns 15 are fixed at the four corners of the bottom of the second water tank 13. The bottom of the second support column 15 is flush with the bottom of the first water tank 1 and is aligned with the outer side of the first water tank 1. The second support column 15 can be stably set on the roof of the commercial building through structures such as concrete piers or anchor bolts to keep the second water tank 13 stable and avoid being blown down by strong winds.

[0039] Second pads 30 are fixed at the four corners of the bottom end of the support box 8, and the second pads 30 are fixed to the top of the air-conditioning outdoor unit 2. The support box 8 is gap-arranged at the top of the air-conditioning outdoor unit 2, and its length and width are not less than the length and width of the air-conditioning outdoor unit 2.

[0040] A condensation water pipe 14 passes through the middle of the second water tank 13. The condensation water pipe 14 is used to connect to the indoor unit of the air conditioner and discharge the condensation water generated by the indoor unit of the air conditioner, so that the condensation water is mixed with the cooling water to circulate and cool the outdoor unit of the air conditioner 2; a first rotating mechanism is provided at the bottom end of the condensation water pipe 14, and the bottom end of the first rotating mechanism is connected to the support box 8. The bottom end of the support box 8 is provided with water spray holes 29, and the water spray holes 29 are evenly distributed at the bottom end of the support box 8 and downward toward the top of the outdoor unit of the air conditioner 2.

[0041] The air-conditioning outdoor unit 2 is arranged above the first water tank 1, and a second water tank 13 is arranged above the air-conditioning outdoor unit 2. The first water tank 1 and the second water tank 13 are connected by a second water conduit 6, and the first rotating mechanism and the second rotating mechanism are rotatably installed on the top of the support box 8 at the lower middle of the second water tank 13. The support box 8 covers the gap above the air-conditioning outdoor unit 2, and sprays cooling water to the top of the air-conditioning outdoor unit 2 through the water spray hole 29, so that the cooling water flows from the top of the air-conditioning outdoor unit 2 to its surrounding surfaces, which can absorb the heat on the surface of the air-conditioning outdoor unit 2 and cool the surface of the air-conditioning outdoor unit 2. The cooling water that absorbs and carries heat falls into the first water tank 1 for heat dissipation and recycling.

[0042] Therefore, the second water tank 13 and the support box 8 can shield the sunlight from the top of the air-conditioning outdoor unit 2, and the air-conditioning outdoor unit 2 is supported by the first support column 3 and arranged between the first water tank 1 and the second water tank 13. The large air-conditioning outdoor unit 2 of the central air-conditioning is installed on the roof of the shopping mall and has a certain height, so that the surface of the air-conditioning outdoor unit 2 and the surrounding air can be kept unobstructed.

[0043] The downpipe 19 is a cylindrical structure and is vertically arranged. The water receiving box 10 is fixedly connected to the bottom end of the downpipe 19. A first slide groove 39 is opened on the top edge of the downpipe 19. The side of the condensation water pipe 14 is connected to a first water pipe 28. The other end of the first water pipe 28 is horizontally inserted into the interior of the second water tank 13, so that the cooling water inside the second water tank 13 enters the water collection box 23 through the condensation water pipe 14.

[0044] The water collection box 23 is located in the middle and lower part of the second water storage pool 13 and is connected to the downspout 19. The water collection box 23 is a rectangular box structure and is vertically arranged. A reinforcement rod 12 is fixed between its outer bottom end and the second support column 15. The reinforcement rod 12 is horizontally arranged above the rotating rod 21. The top end of the water collection box 23 is connected to the bottom end of the condensate pipe 14.

[0045] A plug-in tube 27 is fixed to the bottom edge of the water collection box 23, and the plug-in tube 27 is a circular tube structure. A plug-in tube 26 is connected to the middle of the bottom end of the water collection box 23. The top end of the water drop tube 19 is slidably inserted into the inside of the plug-in tube 27, and the plug-in tube 26 is inserted into the inside of the water drop tube 19. A sealing gasket 41 is bonded to the top end of the water drop tube 19, and the sealing gasket 41 is located between the top end of the water drop tube 19 and the bottom end of the water collection box 23. The first slide groove 39 is a circular ring groove structure, and the cross-section is a semicircular structure. A first ball 40 is slidably installed inside the first slide groove 39, and the first ball 40 is rollingly arranged between the top end of the water drop tube 19 and the bottom end of the water collection box 23, and is located on the outside of the sealing gasket 41. The top end of the water drop tube 19 is plugged and connected to the bottom end of the water collection box 23, and can be rotatably arranged with each other, and keep the seal to prevent water leakage, so that the cooling water inside the water collection box 23 can flow downward along the water drop tube 19.

[0046] A rotating ring 17 is fixed to the bottom edge of the water receiving box 10, and a second slide groove 35 is opened at the bottom end of the rotating ring 17. The second slide groove 35 is a circular ring groove structure, and the cross-section is a semicircular structure. A third water pipe 34 is connected to the middle of the bottom end of the water receiving box 10, and a water inlet hole 32 is opened in the middle of the top of the support box 8. The bottom end of the third water pipe 34 is inserted into the water inlet hole 32, so that the cooling water inside the downpipe 19 enters the inside of the support box 8, which is used to spray downward from the water spray hole 29 and cool the air conditioner outdoor unit 2. The surface of the third water pipe 34 and the position at the top of the water inlet hole 32 are connected to a water retaining ring 33.

[0047] A limiting ring 18 is fixed to the top of the support box 8. The limiting ring 18 is a circular ring structure and is horizontally arranged. A rotation groove 31 is opened at the top of the limiting ring 18. The rotation groove 31 is a circular ring groove structure. The bottom end of the rotating ring 17 is slidably inserted into the rotating groove 31. A second ball 38 is slidably installed inside the second slide groove 35. The second ball 38 is located between the bottom end of the rotating ring 17 and the inner bottom end of the rotating groove 31. Therefore, the bottom end of the water receiving box 10 can be rotatably connected to the top of the support box 8.

[0048] The water receiving box 10 is a circular structure and is arranged horizontally. A small booster pump 37 is installed in the middle of the water receiving box 10. The bottom end of the small booster pump 37 is fixed with a first pad 36 connected to the bottom end of the water receiving box 10, so that a gap is set between the bottom end of the small booster pump 37 and the bottom end of the water receiving box 10, which is beneficial for cooling water to enter the third water conduit 34 and flow downward.

[0049] A water spray pipe 24 is arranged around the water receiving box 10, and the inner end of the water spray pipe 24 is connected to the side of the small booster pump 37. The water spray pipe 24 is evenly distributed horizontally around the water receiving box 10. Atomizing nozzles 25 are installed on the surface of the water spray pipe 24. The atomizing nozzles 25 are evenly distributed around the water spray pipe 24 and are used to atomize and spray cooling water. The cooling water is atomized and sprayed around the air-conditioning outdoor unit 2, thereby increasing the cooling range around the air-conditioning outdoor unit 2 and facilitating all-round cold water cooling of the air-conditioning outdoor unit 2.

[0050] The outer end of the water spray pipe 24 is fixed with a wind wheel blade 9 that is blown by the wind. The wind wheel blade 9 is a rectangular structure and is vertically arranged around the water receiving box 10. The bottom end of the wind wheel blade 9 is fixed with a connecting rod 7. The connecting rod 7 is vertically arranged on the outside of the air-conditioning outdoor unit 2, and its bottom end is slidably arranged at the inner bottom end of the first water tank 1. The surface of the connecting rod 7 is fixed with a rotating sheet 5 for blowing air to dissipate heat for cooling water. The rotating sheet 5 is a rectangular structure and is respectively located inside the first water tank 1 and around the air-conditioning outdoor unit 2.

[0051] Since the air conditioner outdoor unit 2 is installed on the roof of the commercial building, it has a certain height, and there will be wind flow on the roof. The size of the wind force can drive the wind wheel blades 9 to rotate, and the minimum requirement is that the wind wheel blades 9 rotate at a low speed to drive the connecting rod 7 and the rotating sheet 5 to stir and turn the cooling water inside the first water tank 1, and to blow and dissipate the cooling water flowing around the air conditioner outdoor unit 2, thereby increasing the heat dissipation speed of the cooling water; therefore, the wind wheel blades 9 drive the connecting rod 7 and the rotating sheet 5 to rotate around the air conditioner outdoor unit 2, and can be adjusted according to the size of the wind force. By adjusting the size of the wind flow and maintaining different rotation speeds of the wind wheel blades 9, the cooling water carrying heat inside the first water tank 1 can be stirred and turned to accelerate the heat dissipation speed of the cooling water, and the cooling water flowing on the surrounding surfaces of the air-conditioning outdoor unit 2 can be blown to accelerate the heat dissipation speed of the cooling water carrying heat, and the cooling water can be blown around the surface of the air-conditioning outdoor unit 2 to dissipate heat, thereby avoiding relying on wind force to blow the windward side of the air-conditioning outdoor unit 2 but not to blow to the leeward side, resulting in the cooling water flowing down failing to be blown and dissipated.

[0052] In this way, the wind energy from the roof of the shopping mall is used to drive the first rotating mechanism and the second rotating mechanism to rotate, thereby saving electric energy, accelerating the heat dissipation of cooling water carrying heat, increasing the speed of wind heat dissipation on the surface and surrounding areas of the air-conditioning outdoor unit 2, improving the cooling effect of the air-conditioning outdoor unit 2, and improving the cooling efficiency of the air-conditioning indoor unit of the central air-conditioning for the interior of the shopping mall, reducing energy consumption, and benefiting energy conservation and emission reduction of the central air-conditioning.

[0053] A second rotating mechanism is arranged in the middle of the downpipe 19, and the second rotating mechanism includes a rotating rod 21. The rotating rod 21 is arranged horizontally, and the rotating rod 21 is arranged horizontally above the water spray pipe 24. A rotating hole 20 for rotating through the rotating rod 21 is opened in the middle of the downpipe 19. The rotating hole 20 horizontally penetrates the surface of the downpipe 19. A bearing 22 is installed on the surface of the rotating rod 21 and at a position inside the rotating hole 20. A sealing ring 42 is arranged on the outside of the bearing 22. The sealing ring 42 is tightly arranged between the rotating rod 21 and the rotating hole 20. The rotating rod 21 is rotatably connected to the downpipe 19 through the bearing 22, so that the rotating rod 21 can rotate axially by itself through the bearing 22.

[0054] A water wheel blade 43 is fixed in the middle of the surface of the rotating rod 21 and located inside the water drop cylinder 19. The water wheel blades 43 are evenly distributed on the surface of the rotating rod 21 and are set with a gap between the inner wall of the water drop cylinder 19. First fan blades 16 are fixed at both ends of the rotating rod 21. Second fan blades 11 are fixed on the surface of the rotating rod 21 between the first fan blades 16 and the water drop cylinder 19. The first fan blades 16 are of a spiral blade structure and face the outside of the two ends of the rotating rod 21. The second fan blades 11 are of a rectangular structure and are evenly distributed on the surface of the rotating rod 21.

[0055] The condensate pipe 14 is connected to the water collection box 23 at the bottom, so that the condensate generated during the use of the air conditioner can be introduced into the water collection box 23 for recycling and the temperature of the cooling water can be reduced. At the same time, the cooling water in the second water storage tank 13 enters the water collection box 23 through the first water pipe 28 and the condensate pipe 14, so that there is more cooling water in the water collection box 23, and the cooling water flows downward into the water downpipe 19 due to its own weight. The water downpipe 19 has a certain height, so that the water flow inside the water downpipe 19 has a certain drop and has gravitational potential energy, which impacts the water wheel blades 43 downward, so that the water wheel blades 43 drive the rotating rod 21 to rotate.

[0056] Therefore, the gravitational potential energy of the cooling water is converted into the mechanical energy of the rotating rod 21, which can save electric energy. In this way, the rotating rod 21 drives the first fan blade 16 to rotate, and blows air toward the outer sides of the two ends of the rotating rod 21, thereby accelerating the air circulation around the air-conditioning outdoor unit 2, and contributing to the heat dissipation and cooling of the air-conditioning outdoor unit 2; at the same time, the rotating rod 21 drives the second fan blade 11 to rotate, and rotates and blows air around the surface of the rotating rod 21, which can not only blow away the heat generated by the air-conditioning outdoor unit 2, accelerate the heat loss on the surface of the air-conditioning outdoor unit 2, but also disperse the water mist sprayed by the water spray pipe 24 and the atomizing nozzle 25, expand the diffusion range of the cooling water mist, and perform a large-scale water mist cooling and cooling around the air-conditioning outdoor unit 2. Therefore, the surface and surrounding of the air-conditioning outdoor unit 2 can be cooled by blowing heat and spraying water mist, and electric energy can be saved.

[0057] In the hybrid air-conditioning refrigeration device, the air-conditioning outdoor unit 2 is arranged above the first water tank 1, and the second water tank 13 is arranged above the air-conditioning outdoor unit 2. The first water tank 1 and the second water tank 13 are connected by the second water conduit 6, and the first rotating mechanism and the second rotating mechanism are rotatably installed on the top of the support box 8 at the lower middle of the second water tank 13, and the gap of the support box 8 is covered above the air-conditioning outdoor unit 2, and cooling water is sprayed to the top of the air-conditioning outdoor unit 2 through the water spray hole 29, so that the cooling water flows from the top of the air-conditioning outdoor unit 2 to its surrounding surfaces, which can absorb the heat on the surface of the air-conditioning outdoor unit 2 and cool the surface of the air-conditioning outdoor unit 2. The cooling water that absorbs and carries the heat falls into the first water tank 1 to dissipate heat and be recycled.

[0058] Therefore, the second water tank 13 and the support box 8 can shield the sunlight from the top of the air-conditioning outdoor unit 2, and the air-conditioning outdoor unit 2 is supported by the first support column 3 and arranged between the first water tank 1 and the second water tank 13. The large air-conditioning outdoor unit 2 of the central air-conditioning is installed on the roof of the shopping mall and has a certain height, so that the surface of the air-conditioning outdoor unit 2 and the surrounding air can be kept unobstructed.

[0059] Furthermore, the condensate pipe 14 is connected to the water collection box 23 at the bottom, so that the condensate generated during the use of the air conditioner indoor unit can be introduced into the water collection box 23 for recycling and the temperature of the cooling water can be reduced. At the same time, the cooling water in the second water tank 13 enters the water collection box 23 through the first water pipe 28 and the condensate pipe 14, so that there is more cooling water in the water collection box 23, and the cooling water flows downward into the downpipe 19 under the weight of the cooling water itself, and hits the water wheel blades 43 downward, so that the water wheel blades 43 drive the rotating rod 21 to rotate.

[0060] Therefore, the gravitational potential energy of the cooling water is converted into the mechanical energy of the rotating rod 21, which can save electric energy. In this way, the rotating rod 21 drives the first fan blade 16 to rotate, and blows air toward the outer sides of the two ends of the rotating rod 21, thereby accelerating the air circulation around the air-conditioning outdoor unit 2, and contributing to the heat dissipation and cooling of the air-conditioning outdoor unit 2; at the same time, the rotating rod 21 drives the second fan blade 11 to rotate, and rotates and blows air around the surface of the rotating rod 21, which can not only blow away the heat generated by the air-conditioning outdoor unit 2, accelerate the heat loss on the surface of the air-conditioning outdoor unit 2, but also disperse the water mist sprayed by the water spray pipe 24 and the atomizing nozzle 25, expand the diffusion range of the cooling water mist, and perform a large-scale water mist cooling and cooling around the air-conditioning outdoor unit 2. Therefore, the surface and surrounding of the air-conditioning outdoor unit 2 can be cooled by blowing heat and spraying water mist, and electric energy can be saved.

[0061] Moreover, a small booster pump 37 is installed in the water receiving box 10, and is connected to the water receiving box 10 with a water spray pipe 24, and atomizing nozzles 25 are evenly arranged on the surface of the water spray pipe 24. The cooling water can be atomized and sprayed around the air-conditioning outdoor unit 2, and sprinkled on the top and around the air-conditioning outdoor unit 2, thereby increasing the heat absorption range around the air-conditioning outdoor unit 2, which is beneficial to all-round cold water cooling of the air-conditioning outdoor unit 2.

[0062] At the same time, a wind wheel blade 9 is fixed on the outside of the extended end of the water spray pipe 24, and a connecting rod 7 is fixed on the bottom end of the wind wheel blade 9. The connecting rod 7 surrounds the air-conditioning outdoor unit 2 and is inserted into the first water tank 1. In addition, a rotating sheet 5 is fixed on the surface of the connecting rod 7, and the rotating sheets 5 are distributed around the air-conditioning outdoor unit 2 and inside the first water tank 1.

[0063] Since the large air-conditioning outdoor unit 2 of the central air-conditioning is installed on the roof of the commercial building, it has a certain height and there is a certain air flow, which will form wind currents in different directions. Therefore, wind currents in different directions can blow the wind wheel blades 9 and drive the water receiving box 10 and the downpipe 19 to rotate through the water spray pipe 24. Therefore, the rotating rod 21 and the first fan blades 16 and the second fan blades 11 on the surface can be driven to rotate horizontally with the downpipe 19 as the center, so that the rotating rod 21, the first fan blades 16 and the second fan blades 11 can rotate themselves by the gravitational potential energy of the cooling water, and can also rotate around the downpipe 19 by the wind energy of the wind flow. The blowing range of the first fan blades 16 and the second fan blades 11 can be increased, and the blowing and heat dissipation capacity of the air-conditioning outdoor unit 2 can be improved.

[0064] In addition, the wind wheel blades 9 drive the connecting rods 7 and the rotating sheets 5 to rotate around the air-conditioning outdoor unit 2. The wind wheel blades 9 can maintain different rotation speeds according to the size of the wind flow on the roof of the commercial building. The cooling water carrying heat inside the first water tank 1 can be stirred and turned to accelerate the heat dissipation rate of the cooling water. The cooling water flowing around the surface of the air-conditioning outdoor unit 2 can also be blown to accelerate the heat dissipation rate of the cooling water carrying heat and to dissipate heat by blowing air around the surface of the air-conditioning outdoor unit 2.

[0065] In this way, the wind energy from the roof of the shopping mall is used to drive the first rotating mechanism and the second rotating mechanism to rotate, thereby saving electric energy, accelerating the heat dissipation of cooling water carrying heat, increasing the speed of wind heat dissipation on the surface and surrounding areas of the air-conditioning outdoor unit 2, improving the cooling effect of the air-conditioning outdoor unit 2, and improving the cooling efficiency of the air-conditioning indoor unit of the central air-conditioning for the interior of the shopping mall, reducing energy consumption, and benefiting energy conservation and emission reduction of the central air-conditioning.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioning refrigeration water circulation energy-saving device, comprising a first water storage tank (1) and an air conditioning outdoor unit (2) at the top thereof, characterized in that: It also includes a water circulation mechanism, a water guiding mechanism and a spraying structure; The water circulation mechanism comprises a second water pipe (6) and a second water tank (13), wherein the second water tank (13) is arranged above the air conditioner outdoor unit (2), a circulation pump (4) is installed on one side of the interior of the first water tank (1), the top end of the circulation pump (4) is connected to the bottom end of the second water pipe (6), and the top end of the second water pipe (6) is vertically inserted into the interior of the second water tank (13); The water guiding mechanism comprises a condensing water pipe (14) and a first water guiding pipe (28); the condensing water pipe (14) passes through the middle of the second water storage tank (13); the side of the condensing water pipe (14) is connected to the first water guiding pipe (28); the other end of the first water guiding pipe (28) is connected to the second water storage tank (13); a water collection box (23) is fixed to the bottom end of the condensing water pipe (14); and a first rotating mechanism for blowing air to dissipate heat from cooling water is provided at the bottom end of the water collection box (23); The first rotating mechanism comprises a water drop cylinder (19) for making the cooling water have gravitational potential energy and a water receiving box (10) for atomizing and spraying the cooling water, the top end of the water drop cylinder (19) is plug-connected with the bottom end of the water collection box (23), the water receiving box (10) is fixedly connected to the bottom end of the water drop cylinder (19), a water spray pipe (24) is arranged around the water receiving box (10), an atomizing nozzle (25) is installed on the surface of the water spray pipe (24), a wind wheel blade (9) blown by wind is fixed to the outer end of the water spray pipe (24), a connecting rod (7) is fixed to the bottom end of the wind wheel blade (9), and a rotating sheet (5) for blowing and dissipating heat for the cooling water is fixed on the surface of the connecting rod (7), and a second rotating mechanism is arranged in the middle of the water drop cylinder (19); The second rotating mechanism comprises a rotating rod (21) driven to rotate by the gravitational potential energy of the water flow, the rotating rod (21) rotates and passes through the middle of the water drop tube (19), first fan blades (16) for blowing air toward the two ends of the rotating rod (21) are fixed at both ends of the rotating rod (21), and a second fan blade (11) for blowing air around the rotating rod (21) is fixed at a position on the surface of the rotating rod (21) between the first fan blade (16) and the water drop tube (19); The spray structure comprises a support box (8) for receiving cooling water, the support box (8) being installed at the top end of the air conditioner outdoor unit (2) and being located at the bottom end of the first rotating mechanism, the bottom end of the support box (8) being provided with a water spray hole (29), the water spray holes (29) being distributed at the top end of the air conditioner outdoor unit (2).

2. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: A first support column (3) is fixed to the bottom end of the air conditioner outdoor unit (2), the bottom end of the first support column (3) is arranged inside the first water storage tank (1), and second support columns (15) are fixed at the four corners of the bottom end of the second water storage tank (13), the bottom end of the second support column (15) is flush with the bottom end of the first water storage tank (1) and is on the outside of the first water storage tank (1), the water storage box (23) is a rectangular box structure and is arranged vertically, and a reinforcement rod (12) is fixed between its outer bottom end and the second support column (15), and the reinforcement rod (12) is horizontally arranged above the rotating rod (21).

3. The air conditioning refrigeration water circulation energy-saving device according to claim 2, characterized in that: The top of the water collection box (23) is connected to the bottom of the condensation water pipe (14), and a plug-in tube (27) is fixed on the bottom edge of the water collection box (23). A plug-in tube (26) is connected to the middle of the bottom of the water collection box (23). The top of the water drop tube (19) is slidably inserted into the interior of the plug-in tube (27). A sealing gasket (41) is bonded to the top of the water drop tube (19). The sealing gasket (41) is located between the top of the water drop tube (19) and the bottom of the water collection box (23). A first slide groove (39) is opened on the top edge of the water drop tube (19). The first slide groove (39) is a circular groove structure, and the cross-section is a semicircular structure. A first ball (40) is slidably installed inside the first slide groove (39). The first ball (40) is rollingly arranged between the top of the water drop tube (19) and the bottom of the water collection box (23), and is located on the outside of the sealing gasket (41).

4. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: The water drop cylinder (19) is a cylindrical structure and is vertically arranged. A rotating hole (20) for rotating and passing the rotating rod (21) is opened in the middle of the water drop cylinder (19). The rotating hole (20) horizontally penetrates the surface of the water drop cylinder (19). A water wheel blade (43) is fixed in the middle of the surface of the rotating rod (21) and located inside the water drop cylinder (19). A bearing (22) is installed on the surface of the rotating rod (21) and located inside the rotating hole (20). A sealing ring (42) is arranged on the outer side of the bearing (22). The sealing ring (42) is tightly arranged between the rotating rod (21) and the rotating hole (20). The rotating rod (21) is rotatably connected to the water drop cylinder (19) through the bearing (22).

5. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: The water receiving box (10) is of a circular structure and is arranged horizontally. A small booster pump (37) is installed in the middle of the water receiving box (10). The bottom end of the small booster pump (37) is fixed with a first cushion block (36) connected to the bottom end of the water receiving box (10). The inner end of the water spray pipe (24) is connected to the side of the small booster pump (37). The wind wheel blade (9) is of a rectangular structure and is vertically arranged around the water receiving box (10). The connecting rod (7) is vertically arranged on the outside of the air conditioner outdoor unit (2), and its bottom end is slidably arranged at the bottom end of the first water storage tank (1). The rotating sheet (5) is of a rectangular structure and is respectively located inside the first water storage tank (1) and around the air conditioner outdoor unit (2).

6. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: A rotating ring (17) is fixed on the bottom edge of the water receiving box (10), and a second slide groove (35) is opened at the bottom end of the rotating ring (17). The second slide groove (35) is a circular groove structure, and the cross section is a semicircular structure. A third water pipe (34) is connected to the middle of the bottom end of the water receiving box (10). A limiting ring (18) is fixed on the top end of the support box (8). The limiting ring (18) is a circular ring structure and is horizontally arranged. A rotating groove (31) is opened at the top end of the limiting ring (18). The rotating groove (31) is a circular ring groove structure. The bottom end of the rotating ring (17) is slidably inserted into the rotating groove (31). A second ball (38) is slidably installed inside the second slide groove (35). The second ball (38) is located between the bottom end of the rotating ring (17) and the inner bottom end of the rotating groove (31).

7. The air conditioning refrigeration water circulation energy-saving device according to claim 6, characterized in that: The support box (8) is a rectangular structure, with a water inlet hole (32) in the middle of its top, the bottom end of the third water conduit (34) is inserted into the water inlet hole (32), the surface of the third water conduit (34) and the position located at the top of the water inlet hole (32) are connected to a water retaining ring (33), the second pads (30) are fixed at the four corners of the bottom end of the support box (8), the second pads (30) are fixed to the top of the air conditioner outdoor unit (2), the support box (8) is arranged at the top of the air conditioner outdoor unit (2), and its length and width dimensions are not less than the length and width dimensions of the air conditioner outdoor unit (2).

8. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: The first water storage tank (1) is a rectangular structure and is arranged horizontally, the air conditioner outdoor unit (2) is a rectangular structure and is arranged vertically, the second water storage tank (13) is a rectangular ring structure and is arranged horizontally, and its length and width dimensions are both larger than the length and width dimensions of the first water storage tank (1), and the water spray holes (29) are evenly distributed at the bottom end of the support box (8) and downward toward the top end of the air conditioner outdoor unit (2).

9. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: The water collection box (23) is located below the middle of the second water storage pool (13) and is connected to the downspout (19). The water spray pipes (24) are evenly distributed horizontally around the water collection box (10), and the atomizing nozzles (25) are evenly distributed around the water spray pipes (24).

10. The air conditioning refrigeration water circulation energy-saving device according to claim 1, characterized in that: The rotating rod (21) is horizontally arranged above the water spray pipe (24); the water wheel blades (43) are evenly distributed on the surface of the rotating rod (21) and are arranged with a gap between them and the inner wall of the water dropper (19); the first fan blades (16) are of a spiral blade structure and are directed toward the outer sides of both ends of the rotating rod (21); and the second fan blades (11) are of a rectangular structure and are evenly distributed on the surface of the rotating rod (21).

Citation Information

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