Fan structure of water cooling tower

Abstract

The utility model belongs to the technical field of water cooling tower related equipment, and relates to a water cooling tower fan structure which comprises a tower footing, a tower body arranged on the top of the tower footing, a motor base arranged on the outer side of the tower body, a fan base arranged in the tower body, a motor arranged on the top of the motor base, and a fan body arranged on the top of the fan base. The motor is connected with the fan body through the linkage shaft, and blades are arranged on the top of the fan body. According to the utility model, gaps can be reduced, the loss is reduced, the air volume is increased, the noise is reduced, equipment and safety accidents caused by abrasion and scraping of the blades and the air duct can be avoided, and the efficiency of the cooling tower fan is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling tower related equipment, and particularly relates to a cooling tower fan structure. Background Art

[0002] Circulating water systems in industries like steel and chemical production often utilize axial-flow cooling towers. Cooling tower fans are commonly used to transport gas. Their primary function is to draw air from the bottom of the cooling tower through a fan, where it comes into contact with the water and cools it. The cooled air is then discharged out the top of the cooling tower. In this process, cooling tower fans play a crucial role.

[0003] For safe operation, a large gap needs to be reserved between the blade tip and the wind tube, generally 30-60mm. This gap not only causes the fan output to decrease but also increases the noise during the operation of the fan, mainly causing the following problems:

[0004] 1. The gap between the blade tip and the wind tube is too large, which affects the fan output capacity, reduces operating efficiency, increases reactive power loss, and leads to increased operating costs;

[0005] 2. The noise pollution caused by fan operation is serious, affecting the corporate image and causing noise pollution;

[0006] 3. If the gap is adjusted too small, the chance of blades and wind tubes scraping will increase, increasing the risk of equipment damage and leading to increased repair and maintenance costs;

[0007] 4. Once the blades rub against the wind tube, it is very easy to cause equipment accidents, and the damaged blades are likely to fly a long distance, which can easily injure people and bring great safety hazards to the operators.

[0008] Therefore, a cooling tower fan structure is proposed. Utility Model Content

[0009] The purpose of the utility model is to provide a cooling tower fan structure with the functions of reducing gaps, reducing losses, increasing air volume and reducing noise, and solving the problems in the prior art that the gap between the tip of the fan blade and the wind tube is too large, affecting the fan output capacity, and the gap is too small, causing friction between the blade and the wind tube.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides a cooling tower fan structure, including a tower base, a tower body is arranged on the top of the tower base, a motor base is arranged on the outside of the tower body, a fan base is arranged inside the tower body, an electric motor is arranged on the top of the motor base, a fan body is arranged on the top of the fan base, the electric motor is connected to the fan body through a connecting shaft, and blades are arranged on the top of the fan body.

[0011] Preferably, the fan body is placed vertically and the blades rotate horizontally.

[0012] Preferably, the linkage shaft is meshed with the fan main body gear for transmission.

[0013] Preferably, the outer side of the blade is covered with carbon fiber cloth.

[0014] Preferably, the blade ends use a 1mm thick nitrile rubber film lined with steel wire as a supplementary filler.

[0015] Preferably, the blade ends are adhered with an adhesive and reinforced with rivets.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The utility model can reduce gaps and losses, while increasing air volume and reducing noise. It can also avoid equipment and safety accidents caused by friction between blades and wind tubes, thereby improving the efficiency of cooling tower fans.

[0018] 2. The utility model has the functions of reducing gaps, reducing losses, increasing air volume and reducing noise, and solves the problems of the existing technology that the gap between the tip of the fan blade and the wind tube is too large, affecting the fan output capacity, and the gap is too small, causing friction between the blade and the wind tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a structural diagram of a cooling tower fan structure;

[0021] Figure 2 This is a partial structural diagram of a cooling tower fan structure;

[0022] In the above figures, 1. tower base, 2. tower body, 3. motor base, 4. fan base, 5. motor, 6. fan body, 7. connecting shaft, 8. blades. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figure 1-2 The structure of a cooling tower fan is shown in FIG. The structure includes a tower base 1, which serves as a support base, providing stable support and load-bearing, thereby improving overall stability and safety. A tower body 2 is disposed on top of the tower base 1. The tower body 2 is the primary area of ​​contact between air circulation and water flow. The structural design of the tower body 2 helps to enhance heat exchange between air and water, thereby improving the cooling effect.

[0026] A motor base 3 is provided on the outside of the tower body 2, and a fan base 4 is provided inside the tower body 2. A motor 5 is provided on top of the motor base 3. The motor base 3 is used to mount the motor 5, ensuring that the motor 5 can stably and accurately transmit power to the fan. The stable motor base 3 can reduce vibration and noise, extending the service life of the motor 5. A fan body 6 is provided on top of the fan base 4. The fan base 4 is used to support the fan body 6. The fan body 6 is responsible for converting the power generated by the motor 5 into wind flow, which helps to improve the cooling effect.

[0027] Motor 5 is connected to fan body 6 via a coupling shaft 7, which connects the motor 5 and fan body 6, transmitting power. Blades 8 are located on top of fan body 6. Blades 8 directly contact the air, promoting air flow and achieving cooling. Motor 5 provides the power required by fan body 6, driving blades 8 to rotate.

[0028] The following is a detailed description of the design of the above key components:

[0029] The fan body 6 is positioned vertically, and the blades 8 rotate horizontally. The vertical placement of the fan body 6 allows for stable operation, ensuring stability and vibration resistance during operation. Furthermore, the horizontal rotation of the blades 8 allows the blades 8 to operate in the optimal airflow direction, blowing air upward and enhancing air flow.

[0030] The linkage shaft 7 is meshed with the fan body 6. The gear meshing transmission can effectively and efficiently transmit the power of the motor 5 to the fan body 6. The gear transmission structure can reduce energy loss, improve the stability of power transmission, and facilitate the connection of the linkage shaft 7 to realize vertical meshing transmission using gears.

[0031] The outer surface of the blade 8 is covered with carbon fiber cloth to increase the strength and rigidity of the blade 8. Carbon fiber has excellent fatigue resistance and corrosion resistance, suitable for industrial environments. Carbon fiber cloth is a unidirectional carbon fiber reinforcement product woven with carbon fiber yarn and used to strengthen structural components with tensile, shear and seismic resistance. The carbon fiber cloth coating increases the durability of the blade 8 and extends its service life.

[0032] The ends of the blades 8 are filled with 1mm thick nitrile rubber membranes lined with steel wire as supplementary filler. This reinforces the edge structure of the blades 8 and reduces contact friction and wear between the ends of the blades 8 and the inner wall of the tower body 2. The nitrile rubber has good elasticity and wear resistance, while the steel wire lining enhances its anti-scratch properties, effectively reducing the risk of noise and wear.

[0033] The ends of the blades 8 are bonded with an adhesive and reinforced with rivets. The adhesive bonded the nitrile rubber film and reinforced it with rivets, ensuring a secure connection while facilitating subsequent maintenance and replacement. The adhesive provides a good seal, while the rivet reinforcement provides additional mechanical strength, reducing the chance of failure under high speed or high load conditions and improving the safety and reliability of the wind turbine.

[0034] Each blade 8 is bonded with adhesive and reinforced with rivets. Damaged blade ends are removed and replaced regularly based on operating conditions and wear. New diaphragms are then affixed, eliminating the need for replacement or adjustment of the entire blade 8. This design is convenient, efficient, cost-effective, easy to maintain, and operate, and crucially, safe and reliable. Under the same air volume, the fan generates a 2-4 dB(A) lower sound pressure level, while power consumption is reduced by approximately 20%. Reducing the gap between the fan blade tip and the wind shield to prevent airflow turbulence can reduce fan noise. Tests have shown that when the gap is zero, air volume increases by over 20% while noise decreases by 3 dB(A). Under the same operating conditions, the fan can be operated at a reduced speed to maintain the same air volume, while noise levels decrease by another 2 dB(A) and power consumption by approximately 20%.

[0035] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cooling tower fan structure, characterized in that: It includes a tower base, a tower body is arranged on the top of the tower base, a motor base is arranged on the outside of the tower body, a fan base is arranged inside the tower body, an electric motor is arranged on the top of the motor base, a fan body is arranged on the top of the fan base, the electric motor is connected to the fan body through a connecting shaft, and blades are arranged on the top of the fan body.

2. A cooling tower fan structure according to claim 1, characterized in that: The fan body is placed vertically and the blades rotate horizontally.

3. A cooling tower fan structure according to claim 1, characterized in that: The linkage shaft is meshed with the fan main body gear for transmission.

4. A cooling tower fan structure according to claim 1, characterized in that: The outer side of the blade is covered with carbon fiber cloth.

5. The cooling tower fan structure according to claim 1, characterized in that: The blade ends use a 1mm thick nitrile rubber film lined with steel wire as a supplementary filler.

6. A cooling tower fan structure according to claim 5, characterized in that: The blade ends are bonded using adhesive and reinforced using rivets.

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