Low-noise cross-flow cooling tower

Abstract

The utility model discloses a low-noise cross-flow cooling tower which comprises a tower body, a controller fixedly connected to the upper portion of the tower body, fan blades rotationally connected to the upper end of the controller, a shell fixedly installed at the outer ends of the fan blades, and a sound insulation cover fixedly connected to the outer end of the shell. A fixing plate is fixedly mounted on the outer side of the sound insulation cover, and a buffer spring is fixedly connected to the lower end of the fixing plate; the mounting plate is fixedly connected to the inner wall of the tower body, a groove is fixedly formed in the upper end of the mounting plate, a buffer plate is fixedly connected to the front end of the mounting plate, and sound-absorbing cotton is fixedly mounted in the buffer plate, so that the problems that impact noise is generated by impact force of flow on the inner wall of the tower body in the background technology, and noise is caused are solved; and the fan rotates to exhaust hot air in the cooling tower, and when the fan is started, the fan vibrates to generate a large amount of noise, so that eardrums of workers are damaged subsequently.

Description

Technical Field

[0001] This utility model relates to the field of crossflow cooling tower technology, specifically a low-noise crossflow cooling tower. Background Technology

[0002] Crossflow cooling towers employ an orthogonal design, with water flowing vertically downwards and air passing horizontally through, achieving highly efficient cooling. Made of corrosion-resistant fiberglass, their modular design offers flexibility and convenience, making them suitable for industries such as petroleum and chemical processing, and particularly well-suited for cold northern environments.

[0003] The existing Chinese utility model patent with announcement number CN214747353U provides a low-noise square crossflow cooling tower, which relates to the field of cooling tower technology. The tower includes a shell, and the two side air inlets and the top air outlet are equipped with sound-absorbing components. During air intake and exhaust, the sound-absorbing components absorb wind noise, greatly reducing the impact of noise on the surrounding residents. In addition, a buffer net is installed above the water collection tank to prevent water droplets falling from the cooling tower from causing noise in the water collection tank, further reducing the device's environmental impact. The air inlet pipes on both sides of the device are equipped with a first filter and a second filter. Before entering the cooling tower, outside air passes through the first and second filters, filtering out dust and other impurities in the air, preventing dust from contaminating the cooling tower. The first and second filters can be disassembled, cleaned, and reused after a period of use, improving the practicality of the device and reducing the company's investment costs.

[0004] Existing crossflow cooling towers achieve efficient cooling by orthogonally designing water flow and air. The water flows vertically down from the top of the tower, and when the water falls into the packing layer, it inevitably hits the inner wall of the cooling tower. The impact force of the water flow on the inner wall of the tower generates collision noise, causing noise pollution. The fan rotates to expel the hot air from the cooling tower. When the fan starts, the vibration generates a lot of noise, which can later damage the eardrums of workers.

[0005] Therefore, those skilled in the art have provided a low-noise crossflow cooling tower to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a low-noise crossflow cooling tower to solve the problems mentioned in the background art, such as the impact of the flow on the inner wall of the tower causing collision noise and noise pollution, and the fan rotation expelling hot air from the cooling tower, which generates a lot of noise when the fan starts up, subsequently causing damage to workers' eardrums.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A low-noise crossflow cooling tower includes:

[0009] The tower body has a controller fixedly connected to its upper part, and a fan blade is rotatably connected to the upper end of the controller. A casing is fixedly installed on the outer end of the fan blade.

[0010] A soundproof cover is fixedly connected to the outer end of the outer shell. A fixing plate is fixedly installed on the outer side of the soundproof cover, and a buffer spring is fixedly connected to the lower end of the fixing plate.

[0011] The mounting plate is fixedly connected to the inner wall of the tower body. A groove is fixedly opened at the upper end of the mounting plate. A buffer plate is fixedly connected to the front end of the mounting plate, and sound-absorbing cotton is fixedly installed inside the buffer plate.

[0012] A reinforcing plate is fixedly connected to both sides of the mounting plate, and a hole is fixedly opened at the upper end of the reinforcing plate. A spiral plate is fixedly connected to the inner side of the reinforcing plate.

[0013] As a further improvement of this utility model:

[0014] A water collection trough, which is fixedly installed inside the tower body;

[0015] Sound insulation panel, the sound insulation panel is fixedly connected to the outer wall of the tower body;

[0016] The mounting port is fixedly opened at the top of the tower body, and placement slots are fixedly opened on both sides of the mounting port;

[0017] The conveying pipe is fixedly connected to the front end of the tower body, and a spray pipe is fixedly connected to the rear end of the conveying pipe. A packing plate is fixedly installed at the lower end of the spray pipe.

[0018] As a further embodiment of this utility model: the outer shell and the mounting port are fixedly connected, a filter cotton is fixedly installed inside the soundproof cover, and the buffer spring is fixedly connected inside the placement groove.

[0019] As a further improvement of this utility model: the upper end of the mounting plate is evenly provided with screw holes, the number of grooves is the same as that of the buffer plate, and the screw holes are symmetrically installed on the upper and lower sides of the mounting plate with the mounting plate as the central base.

[0020] As a further embodiment of this utility model: one side of the mounting plate and the reinforcing plate form a right angle shape, the reinforcing plate is symmetrically installed on the left and right sides of the mounting plate with the mounting plate as the central base, and the buffer plate is inclined downwards in an increasing manner.

[0021] As a further embodiment of this utility model: the mounting port is symmetrically installed on the front and rear sides of the tower body with the tower body as the central base; a water-collecting film is installed between the mounting port and the spray pipe; and the placement groove is symmetrically installed on the left and right sides of the mounting port with the mounting port as the central base.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The tower body is equipped with a silent large-blade axial flow fan and a low-noise airfoil fan to reduce aerodynamic noise during use. A soundproof cover is installed on the outer end of the fan blade shell. The filter cotton inside the soundproof cover absorbs noise and blocks its transmission. A fixing plate is added to the outside of the soundproof cover, and the four corner buffer springs are connected by the fixing plate. By optimizing the fan speed and combining it with the vibration damping base, vibration during operation is reduced.

[0024] 2. The mounting plate is fixed to the front and rear sides of the tower body with screws. The buffer plate and the groove form a sliding connection. The buffer plate has a downward inclined structure. The multi-stage inclined buffer plate combined with the internal sound-absorbing cotton gradually reduces the impact of the water flow on the inner wall of the tower body and reduces the noise caused by the water flow collision. Reinforcing plates are added to both sides of the mounting plate and fixed with screws through the holes. The internal spiral plate design optimizes the water flow falling path and reduces the dynamic noise of the water flow. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a low-noise crossflow cooling tower.

[0026] Figure 2 This is a schematic diagram of the structure of a low-noise crossflow cooling tower.

[0027] Figure 3 This is a schematic diagram of the structure of a noise-reducing fan in a low-noise crossflow cooling tower.

[0028] Figure 4 This is a schematic diagram of the buffer plate in a low-noise crossflow cooling tower.

[0029] In the diagram: 1. Tower body; 2. Water collection tank; 3. Sound insulation board; 4. Installation port; 5. Placement slot; 6. Conveying pipe; 7. Spray pipe; 8. Packing plate; 9. Controller; 10. Fan blade; 11. Outer shell; 12. Sound insulation cover; 13. Fixing plate; 14. Buffer spring; 15. Mounting plate; 16. Groove; 17. Buffer plate; 18. Sound-absorbing cotton; 19. Reinforcing plate; 20. Hole; 21. Spiral plate. Detailed Implementation

[0030] 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.

[0031] Example 1:

[0032] Please see Figure 1-3 A low-noise crossflow cooling tower, comprising:

[0033] Tower body 1, with controller 9 fixedly connected to the top of tower body 1, fan blade 10 rotatably connected to the upper end of controller 9, and outer casing 11 fixedly installed on the outer end of fan blade 10:

[0034] The soundproof cover 12 is fixedly connected to the outer end of the outer shell 11. A fixing plate 13 is fixedly installed on the outer side of the soundproof cover 12, and a buffer spring 14 is fixedly connected to the lower end of the fixing plate 13.

[0035] The outer casing 11 is fixedly connected to the mounting port 4. Filter cotton is fixedly installed inside the soundproof cover 12, and the buffer spring 14 is fixedly connected inside the placement groove 5.

[0036] In this embodiment, the controller 9 and the fan blade 10 are used as a fan. The controller 9 adjusts the speed of the DC motor through an electrical signal. The controller 9 is model KG316TR. It drives the fan blade 10 to rotate to efficiently exhaust the hot air in the tower and achieve dynamic heat dissipation performance optimization. The outer shell 11 covers the outer end of the fan blade 10, which not only provides physical protection but also facilitates disassembly and maintenance, and avoids abnormal noise caused by friction between the fan blade 10 and the tower body 1. The combination of the fixing plate 13 and the buffer spring 14 effectively absorbs the vibration energy during the start-up and operation of the fan and reduces the mechanical vibration transmitted to the tower body 1 structure.

[0037] The reinforcing plate 19 is fixedly connected to both sides of the mounting plate 15, and the upper end of the reinforcing plate 19 is fixedly provided with a hole 20, and the inner side of the reinforcing plate 19 is fixedly connected with a spiral plate 21.

[0038] Screw holes are evenly distributed on the upper end of the mounting plate 15. The number of grooves 16 is the same as that of the buffer plate 17. The screw holes are symmetrically installed on the upper and lower sides of the mounting plate 15 with the mounting plate 15 as the center base.

[0039] The mounting plate 15 and the reinforcing plate 19 form a right angle shape on one side. The reinforcing plate 19 is symmetrically installed on the left and right sides of the mounting plate 15 with the mounting plate 15 as the central base. The buffer plate 17 is inclined downward in an increasing manner.

[0040] In this embodiment, the mounting plate 15 is fixed to the tower body 1 with screws. The groove 16 and the buffer plate 17 adopt a plug-in design, which is convenient for disassembly and maintenance and avoids additional vibration and noise caused by structural loosening. The U-shaped groove 16 (cross-section) is interlocked with the buffer plate 17 to form a stepped bearing surface, which disperses the impact force of rainwater step by step and effectively reduces the noise of water flow impacting the inner wall. The downward increasing layer design extends the water flow path and reduces the direct impact energy. It works with the spiral plate 21 to reduce dynamic noise. The upper end of the buffer plate 17 is covered with sound-absorbing cotton 18 to absorb the sound wave energy generated by water flow collision and further suppress the propagation of high-frequency noise. The reinforcing plate 19 is connected to the mounting plate 15 on both sides through the hole 20 to enhance the load-bearing capacity of the spiral plate 21 and prevent structural deformation caused by water flow impact.

[0041] Example 2:

[0042] Please see Figure 4 This embodiment provides a technical solution based on Embodiment 1:

[0043] Water collection tank 2 is fixedly installed inside tower body 1;

[0044] Sound insulation panel 3 is fixedly connected to the outer wall of tower body 1;

[0045] Installation port 4 is fixedly opened at the top of tower body 1, and placement slots 5 are fixedly opened on both sides of installation port 4.

[0046] The conveying pipe 6 is fixedly connected to the front end of the tower body 1, and the rear end of the conveying pipe 6 is fixedly connected to the spray pipe 7. The lower end of the spray pipe 7 is fixedly installed with a packing plate 8.

[0047] The installation port 4 is symmetrically installed on the front and rear sides of the tower body 1 with the tower body 1 as the center base. A water-collecting film is installed between the installation port 4 and the spray pipe 7. The placement trough 5 is symmetrically installed on the left and right sides of the installation port 4 with the installation port 4 as the center base.

[0048] In this embodiment, the water collection tank 2 receives and stores the water flowing down into the tower. The water is then pumped to the spray system for recycling, reducing water consumption. The delivery pipe 6 and the spray pipe 7 are connected by a water pump to achieve vertical water transport from the water collection tank 2 to the top of the tower. The spray pipe 7 distributes the water flow evenly to improve cooling efficiency. The placement tank 5 has a built-in buffer spring 14 to absorb the vibration energy of the fan during operation, avoiding noise amplification caused by structural resonance. The number of installation ports 4 matches the number of fans, and the outer casing 11 protects against the risk of friction of the fan blades 10, extending the equipment life.

[0049] The working principle of this utility model is as follows:

[0050] In using this utility model, to reduce the noise generated during the start-up of the cooling tower, the original fan is replaced with a silent large-blade axial flow fan. The controller 9 adjusts the speed of the DC motor via an electrical signal to drive the fan blades 10 to rotate and efficiently exhaust the hot air inside the tower. A shell 11 is added to the outer end of the fan blades 10 to provide physical protection for the fan blades 10 and prevent noise from friction between the fan blades 10 and the tower body 1. A soundproof cover 12 is added to the outside of the shell 11, and internal filter cotton is used to absorb noise. The fixing plate 13 is combined with the buffer spring 14. When the fan vibrates, the buffer spring 14 absorbs the vibration energy. To reduce water source noise, spray... A noise reduction structure is added below the pipe 7. The mounting plate 15 is installed into the tower body 1 with screws. The buffer plate 17 and the groove 16 form a sliding connection. Multiple buffer plates 17 are inserted and installed through the groove 16. The buffer plate 17 has a stepped downward inclined structure. When water falls onto the buffer plate 17, the water flow increases downward to reduce the falling speed. The buffer plate 17 uses internal sound-absorbing cotton 18 to absorb the noise of water hitting the plate surface. The spiral plate 21 is installed through the reinforcing plate 19. The reinforcing plate 19 is connected to the mounting plate 15 on both sides to increase the stability of the spiral plate 21. The spiral plate 21 extends the water flow path to reduce the water flow impact noise.

Claims

1. A low-noise crossflow cooling tower, characterized in that, include: A tower body (1) is provided, and a controller (9) is fixedly connected to the top of the tower body (1). A fan blade (10) is rotatably connected to the upper end of the controller (9), and a shell (11) is fixedly installed on the outer end of the fan blade (10). Soundproof cover (12), the soundproof cover (12) is fixedly connected to the outer end of the outer shell (11), a fixing plate (13) is fixedly installed on the outer side of the soundproof cover (12), and a buffer spring (14) is fixedly connected to the lower end of the fixing plate (13); Mounting plate (15) is fixedly connected to the inner wall of the tower body (1). The upper end of the mounting plate (15) is fixedly provided with a groove (16). The front end of the mounting plate (15) is fixedly connected with a buffer plate (17), and the interior of the buffer plate (17) is fixedly installed with sound-absorbing cotton (18). A reinforcing plate (19) is fixedly connected to both sides of the mounting plate (15), and a hole (20) is fixedly opened at the upper end of the reinforcing plate (19). A spiral plate (21) is fixedly connected to the inner side of the reinforcing plate (19).

2. The low-noise crossflow cooling tower according to claim 1, characterized in that, Water collection tank (2), which is fixedly installed inside the tower body (1); Sound insulation board (3), the sound insulation board (3) is fixedly connected to the outer wall of the tower body (1); The mounting port (4) is fixedly opened at the top of the tower body (1), and the mounting port (4) is fixedly opened on both sides of the mounting port (4) with placement slots (5); The conveying pipe (6) is fixedly connected to the front end of the tower body (1), and the rear end of the conveying pipe (6) is fixedly connected to the spray pipe (7), and the lower end of the spray pipe (7) is fixedly installed with a packing plate (8).

3. A low-noise crossflow cooling tower according to claim 1, characterized in that, The outer shell (11) and the mounting port (4) are fixedly connected. The soundproof cover (12) is fixedly installed with filter cotton inside. The buffer spring (14) is fixedly connected inside the placement groove (5).

4. A low-noise crossflow cooling tower according to claim 1, characterized in that, The mounting plate (15) has screw holes evenly distributed on its upper end. The number of grooves (16) is the same as that of the buffer plate (17). The screw holes are symmetrically installed on the upper and lower sides of the mounting plate (15) with the mounting plate (15) as the center base.

5. A low-noise crossflow cooling tower according to claim 1, characterized in that, The mounting plate (15) forms a right angle with the reinforcing plate (19) on one side. The reinforcing plate (19) is symmetrically installed on the left and right sides of the mounting plate (15) with the mounting plate (15) as the central base. The buffer plate (17) is inclined downward in an increasing manner.

6. A low-noise crossflow cooling tower according to claim 2, characterized in that, The installation port (4) is symmetrically installed on the front and back sides of the tower body (1) with the tower body (1) as the center base. A water-collecting film is installed between the installation port (4) and the spray pipe (7). The placement groove (5) is symmetrically installed on the left and right sides of the installation port (4) with the installation port (4) as the center base.

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