Novel closed cooling tower fan

Abstract

The utility model discloses a novel closed cooling tower fan which comprises an air duct, a clamping groove is formed in the bottom of the inner side face of the air duct, a clamping ring is clamped in the clamping groove, and the inner side face of the clamping ring is fixedly connected with a connecting cover. And the outer surface of the connecting cover is fixedly connected with an arc-shaped strip. According to the novel closed cooling tower fan, through the arrangement of the arc-shaped strip, the circular ring, the confluence groove, the first clamping piece and the second clamping piece, water vapor is condensed into small water drops when encountering the arc-shaped strip and the circular ring, slides down along the radians of the arc-shaped strip and the circular ring and drips into the confluence groove; the generated vibration enables an arc-shaped strip and a circular ring to vibrate through a first clamping piece, a connecting rod and a second clamping piece, water drops attached to the arc-shaped strip and the circular ring are vibrated to slide down, and therefore the collecting speed of condensate water is increased, the condensation efficiency of water vapor is improved, water can be recycled, the utilization rate of water resources is increased, cost is reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower fan technology, and in particular to a novel closed-loop cooling tower fan. Background Technology

[0002] Closed-circuit cooling towers, also known as evaporative air coolers or closed cooling towers, place tubular heat exchangers inside the tower. They achieve cooling by exchanging heat through circulating air, spray water, and circulating water. Closed-circuit cooling towers require fans for air cooling during operation.

[0003] A search revealed Chinese Patent Publication No. CN205592167U, which discloses a novel fan for closed-circuit cooling towers. The fan includes a duct, a base plate, fan blades, and a motor. The fan blades are fixedly mounted on the motor, the duct is located outside the fan blades, and the base plate is located at the bottom of the duct. The duct and base plate are separate components. The duct can be fabricated independently, and its height is easily adjustable. Different fan models or duct types can be selected based on different cooling tower main units, allowing for more flexible and varied layout on the cooling tower.

[0004] Although the fans in the aforementioned patents can be selected in different models, they lack a steam collection mechanism. When the cooling tower is running, it discharges saturated humid air containing a large number of unevaporated water droplets, resulting in a high drift rate of the closed cooling tower and a waste of a large amount of water resources. Therefore, it is necessary to design a new type of closed cooling tower fan to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a novel closed-loop cooling tower fan that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel closed-loop cooling tower fan includes a fan duct. A groove is formed at the bottom of the inner side of the fan duct, and a retaining ring is engaged inside the groove. A connecting cover is fixedly connected to the inner side of the retaining ring. An arc-shaped strip is fixedly connected to the outer surface of the connecting cover, and a circular ring is fixedly connected to the outer surface of the arc-shaped strip. A confluence groove is fixedly connected to the bottom of the inner side of the connecting cover. A first clamping member is fitted onto one side of the outer surface of the arc-shaped strip. A connecting rod is fixedly connected to the upper surface of the first clamping member, and a second clamping member is fixedly connected to one end of the connecting rod. A drain pipe is fixedly connected to the outer surface of the connecting cover, and the drain pipe penetrates the fan duct.

[0008] To facilitate installation, the bottom of the outer surface of the fan casing of this novel closed cooling tower is fixedly connected to a base plate, and the upper surface of the base plate is provided with mounting holes.

[0009] In order to enhance the structural strength of the air duct, as a novel closed-loop cooling tower fan of this utility model, a top plate is fixedly connected to the top of the outer surface of the air duct, and a reinforcing rib is fixedly connected to the middle of the outer surface of the air duct. The reinforcing rib is fixedly connected to the bottom plate and the top plate.

[0010] To facilitate the installation of the cross plate, in this novel closed-loop cooling tower fan, a fixing ring is fixedly connected to the middle of the inner side of the fan casing, and a cross plate is fixedly connected to the upper surface of the fixing ring by bolts.

[0011] In order to facilitate the air exchange of the cooling tower, as a novel closed cooling tower fan of this utility model, a motor is fixedly connected to the middle of the upper surface of the cross plate, and a fan blade is fixedly connected to the output end of the motor. The cross plate is snapped into the second clamping member.

[0012] To achieve a dust-proof effect, the top plate of this novel closed-loop cooling tower fan has a groove on its upper surface. A bracket is movably connected inside the groove. Support rods are fixedly connected to both sides of the inner side of the bracket. A dustproof plate is rotatably connected to the outer surface of the support rods.

[0013] In order to facilitate the limiting effect of the dustproof plate, as a novel closed cooling tower fan of this utility model, both sides of the upper surface of the top plate are rotatably connected to the connecting plate, and one side of the upper surface of the connecting plate is slidably connected to the limiting rod. The upper surface of the dustproof plate is provided with a limiting hole on the side near the limiting rod, and the limiting hole penetrates the dustproof plate.

[0014] In order to achieve the effect of easy control of the limit rod, as a novel closed cooling tower fan of this utility model, a gasket is fixedly connected to the bottom of the outer surface of the limit rod, a spring is fixedly connected to the upper surface of the gasket, and a pull ring is fixedly connected to the end of the limit rod away from the gasket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, by setting up an arc-shaped strip, a ring, a confluence groove, a first clamping member, and a second clamping member, water vapor condenses into small water droplets upon encountering the arc-shaped strip and the ring, which slide down along the arc of the two and drip into the confluence groove. At the same time, when the motor is running, the vibration generated causes the arc-shaped strip and the ring to vibrate through the first clamping member, the connecting rod, and the second clamping member, which vibrates the water droplets attached to the arc-shaped strip and the ring until they slide off, thereby accelerating the collection speed of condensate and thus accelerating the condensation efficiency of water vapor. This allows for water recycling, improves the utilization rate of water resources, reduces costs, and reduces environmental pollution.

[0017] 2. In this utility model, through the arrangement of dustproof plates, limiting rods, springs, and gaskets, two sets of dustproof plates are rotatably connected inside the bracket via support rods, making opening and closing convenient and facilitating the maintenance of the motor and fan blades inside the air duct, further improving the maintenance speed. Under the elastic action of the springs, the gaskets and limiting rods limit and fix the dustproof plates through the limiting holes, enhancing the stability of the dustproof plates during use. When the limiting rods are pulled out, the connecting plate is rotated at a certain angle, making it convenient to rotate and unfold the dustproof plates, avoiding conflict between the two. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional planar structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the air duct according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the fan blade structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the dustproof plate structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. Air duct; 2. Slot; 3. Snap ring; 4. Connecting cover; 5. Arc strip; 6. Circular ring; 7. Combustion channel; 8. First clamping component; 9. Connecting rod; 10. Second clamping component; 11. Drain pipe; 12. Base plate; 13. Mounting hole; 14. Top plate; 15. Reinforcing rib; 16. Fixing ring; 17. Cross plate; 18. Motor; 19. Fan blade; 20. Groove; 21. Bracket; 22. Support rod; 23. Dustproof plate; 24. Connecting plate; 25. Limiting rod; 26. Limiting hole; 27. Gasket; 28. Spring; 29. ​​Pull ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1-5As shown, a novel closed-loop cooling tower fan includes a fan duct 1. A groove 2 is formed at the bottom of the inner side of the fan duct 1. A retaining ring 3 is engaged inside the groove 2. A connecting cover 4 is fixedly connected to the inner side of the retaining ring 3. An arc-shaped strip 5 is fixedly connected to the outer surface of the connecting cover 4. A circular ring 6 is fixedly connected to the outer surface of the arc-shaped strip 5. A confluence groove 7 is fixedly connected to the bottom of the inner side of the connecting cover 4. A first clamping member 8 is sleeved on one side of the outer surface of the arc-shaped strip 5. A connecting rod 9 is fixedly connected to the upper surface of the first clamping member 8. A second clamping member 10 is fixedly connected to one end of the connecting rod 9. A drain pipe 11 is fixedly connected to the outer surface of the connecting cover 4, and the drain pipe 11 penetrates the fan duct 1.

[0027] In practical use, through the arrangement of the arc-shaped strips 5, the rings 6, the confluence grooves 7, the first clamping member 8, and the second clamping member 10, the retaining ring 3 is engaged inside the retaining groove 2, facilitating the connection of the connecting cover 4 to the air duct 1 and making disassembly and assembly convenient. Multiple arc-shaped strips 5 are evenly fixed on the outer surface of the connecting cover 4 in a circumferential array, while multiple rings 6 are evenly fixed on the outer surface of the arc-shaped strips 5, forming a hollow arc-shaped structure. When the fan is running, water vapor will condense into small water droplets upon encountering the arc-shaped strips 5 and the rings 6, which will slide down along their curvature and drip into the confluence grooves 7. Meanwhile, one end of the connecting rod 9 contacts the arc-shaped strip 5 through the first clamping member 8, and the other end contacts the cross plate 17 at the bottom of the motor 18 through the second clamping member 10. When the motor 18 runs, the vibration generated causes the arc-shaped strip 5 and the ring 6 to vibrate, causing the water droplets attached to the arc-shaped strip 5 and the ring 6 to slide off, thereby accelerating the collection speed of condensate and thus accelerating the condensation efficiency of water vapor. The drain pipe 11 transports the condensate inside the manifold 7 to a designated location, which can be used for water recycling, improve the utilization rate of water resources, reduce costs, and reduce environmental pollution.

[0028] In this embodiment, a base plate 12 is fixedly connected to the bottom of the outer surface of the air duct 1, and an installation hole 13 is provided on the upper surface of the base plate 12.

[0029] In practical use, the mounting holes 13 are set in a circular array and are evenly opened on the upper surface of the base plate 12, penetrating the base plate 12, so that the base plate 12 can be installed at the designated location of the cooling tower by external bolts, making installation convenient.

[0030] In this embodiment, a top plate 14 is fixedly connected to the top of the outer surface of the air duct 1, and a reinforcing rib 15 is fixedly connected to the middle of the outer surface of the air duct 1. The reinforcing rib 15 is fixedly connected to the bottom plate 12 and the top plate 14.

[0031] In practical use, the top plate 14 and the reinforcing ribs 15 are set up, and multiple reinforcing ribs 15 connect the air duct 1, the top plate 14 and the bottom plate 12. The reinforcing ribs 15, the top plate 14 and the bottom plate 12 can be made of aluminum-zinc galvanized steel or stainless steel, which improves the strength of the fan.

[0032] In this embodiment, a fixing ring 16 is fixedly connected to the middle of the inner side of the air duct 1, and a cross plate 17 is fixedly connected to the upper surface of the fixing ring 16 by bolts.

[0033] In practical use, the motor 18 is supported by the setting of the fixing ring 16 and the cross plate 17, with the cross plate 17 fixed to the upper surface of the fixing ring 16 by bolts.

[0034] In this embodiment, a motor 18 is fixedly connected to the middle of the upper surface of the cross plate 17, and a fan blade 19 is fixedly connected to the output end of the motor 18. The cross plate 17 and the second clamping member 10 are engaged.

[0035] In practical use, the fan blade 19 is fixed to the output end of the motor 18. The motor 18 can be a three-phase asynchronous motor. This device has the characteristics of good sealing and waterproof performance, high temperature resistance, high efficiency and low noise, which fully meets the protection requirements for long-term operation in humid and hot environments. The fan blade 19 is designed to be streamlined. The streamlined fan blade 19 is more efficient and can greatly reduce working noise. At the same time, the fan blade 19 is made of aluminum alloy material, which is high quality, lightweight and more flexible in rotation. The two work together to accelerate air flow and improve cooling efficiency.

[0036] In this embodiment, a groove 20 is provided on the upper surface of the top plate 14, and a bracket 21 is movably connected inside the groove 20. Support rods 22 are fixedly connected to both sides of the inner side of the bracket 21, and a dustproof plate 23 is rotatably connected to the outer surface of the support rods 22.

[0037] In practical use, with the dustproof plate 23 installed, the bracket 21 is placed inside the groove 20. The two sets of dustproof plates 23 are rotatably connected to the inside of the bracket 21 through the support rod 22, making it easy to open and close. This makes it easier to maintain the motor 18 and fan blades 19 inside the air duct 1, further improving the maintenance speed. The dustproof plate 23 reduces the entry of external dust into the interior of the cooling tower, thus enhancing the dustproof effect.

[0038] In this embodiment, both sides of the upper surface of the top plate 14 are rotatably connected to a connecting plate 24, and a limit rod 25 is slidably connected to one side of the upper surface of the connecting plate 24. A limit hole 26 is opened on the upper surface of the dustproof plate 23 near the limit rod 25, and the limit hole 26 penetrates the dustproof plate 23.

[0039] In practical use, the limiting rod 25 is slidably connected to the connecting plate 24 through the setting of the limiting rod 25. When the limiting rod 25 is connected to the limiting hole 26 of the dustproof plate 23, the dustproof plate 23 can be limited, which is convenient for installation. When the limiting rod 25 is pulled out, the connecting plate 24 is rotated at a certain angle to facilitate the rotation and unfolding of the dustproof plate 23 and avoid the two from conflicting.

[0040] In this embodiment, a gasket 27 is fixedly connected to the bottom of the outer surface of the limiting rod 25, a spring 28 is fixedly connected to the upper surface of the gasket 27, and a pull ring 29 is fixedly connected to the end of the limiting rod 25 away from the gasket 27.

[0041] In practical use, the spring 28 is used to limit and fix the dustproof plate 23 under the elastic action of the spring 28, thereby enhancing the stability of the dustproof plate 23 during use. The pull ring 29 can be used to operate and control the limit rod 25, making the operation simple, efficient and quick.

[0042] Working principle: During use, the base plate 12 is installed at the designated location of the cooling tower through multiple mounting holes 13 and external bolts. When the fan is running, water vapor condenses into small water droplets when it encounters the arc-shaped strip 5 and the ring 6. The droplets slide down along the arc of the strip and drip into the manifold 7. At the same time, the vibration generated by the motor 18 during operation causes the arc-shaped strip 5 and the ring 6 to vibrate through the connecting rod 9, the first clamping member 8 and the second clamping member 10, which vibrates the water droplets attached to the arc-shaped strip 5 and the ring 6 until they slide off, thereby accelerating the collection speed of condensate. The drain pipe 11 transports the condensate inside the manifold 7 to the designated location for water recycling. The motor 18 and the fan blade 19 work together to accelerate airflow and improve cooling efficiency. The dustproof plate 23 reduces the entry of external dust and enhances the dustproof effect.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel closed-loop cooling tower fan, comprising a fan duct (1), characterized in that: The bottom of the inner side of the air duct (1) has a groove (2), and a retaining ring (3) is engaged inside the groove (2). A connecting cover (4) is fixedly connected to the inner side of the retaining ring (3). An arc-shaped strip (5) is fixedly connected to the outer surface of the connecting cover (4). A circular ring (6) is fixedly connected to the outer surface of the arc-shaped strip (5). A confluence groove (7) is fixedly connected to the bottom of the inner side of the connecting cover (4). A first clamping member (8) is sleeved on one side of the outer surface of the arc-shaped strip (5). A connecting rod (9) is fixedly connected to the upper surface of the first clamping member (8). A second clamping member (10) is fixedly connected to one end of the connecting rod (9). A drain pipe (11) is fixedly connected to the outer surface of the connecting cover (4). The drain pipe (11) penetrates the air duct (1).

2. The novel closed-loop cooling tower fan according to claim 1, characterized in that: A base plate (12) is fixedly connected to the bottom of the outer surface of the air duct (1), and an installation hole (13) is provided on the upper surface of the base plate (12).

3. A novel closed-loop cooling tower fan according to claim 2, characterized in that: A top plate (14) is fixedly connected to the top of the outer surface of the air duct (1), and a reinforcing rib (15) is fixedly connected to the middle of the outer surface of the air duct (1). The reinforcing rib (15) is fixedly connected to the bottom plate (12) and the top plate (14).

4. A novel closed-loop cooling tower fan according to claim 1, characterized in that: A fixing ring (16) is fixedly connected to the middle of the inner side of the air duct (1), and a cross plate (17) is fixedly connected to the upper surface of the fixing ring (16) by bolts.

5. A novel closed-loop cooling tower fan according to claim 4, characterized in that: A motor (18) is fixedly connected to the middle of the upper surface of the cross plate (17), and a fan blade (19) is fixedly connected to the output end of the motor (18). The cross plate (17) is snapped into the second clamping member (10).

6. A novel closed-loop cooling tower fan according to claim 3, characterized in that: The top plate (14) has a groove (20) on its upper surface. A bracket (21) is movably connected inside the groove (20). Support rods (22) are fixedly connected to both sides of the inner side of the bracket (21). A dustproof plate (23) is rotatably connected to the outer surface of the support rods (22).

7. A novel closed-loop cooling tower fan according to claim 6, characterized in that: Both sides of the upper surface of the top plate (14) are rotatably connected to connecting plates (24). A limit rod (25) is slidably connected to one side of the upper surface of the connecting plate (24). A limit hole (26) is opened on the upper surface of the dustproof plate (23) near the limit rod (25). The limit hole (26) penetrates the dustproof plate (23).

8. A novel closed-loop cooling tower fan according to claim 7, characterized in that: A gasket (27) is fixedly connected to the bottom of the outer surface of the limiting rod (25), a spring (28) is fixedly connected to the upper surface of the gasket (27), and a pull ring (29) is fixedly connected to the end of the limiting rod (25) away from the gasket (27).

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