Cooling tower fan shock absorption and noise reduction device

Abstract

The utility model relates to fan noise reduction technical field especially, it relates to a cooling tower fan damping and noise reduction device. Its technical scheme includes: pedestal and cylinder, the pedestal is equipped with the support plate through the damping component, the cylinder is established on the support plate, the inside of cylinder is equipped with the fan body through the buffer component. The utility model reduces the cracking risk of the air duct through the cooperation between the structure and the design of buffer component, reduces the working noise through the design of damping component, improves the fan operation stability and improves the fan operation stability.

Description

Technical Field

[0001] This utility model relates to the field of fan noise reduction technology, and in particular to a vibration reduction and noise reduction device for cooling tower fans. Background Technology

[0002] To improve compressor efficiency and reduce cooling water temperature, the airflow of the cooling tower fan was adjusted, resulting in increased airflow. During this process, the vibration of the cooling tower fan duct increased significantly.

[0003] Currently, the fans are directly fixed inside the air duct with bolts. The air duct is generally made of fiberglass. Under long-term operation, the vibration of the fans and air duct can easily cause the bolt connection to loosen and corrode. When loose, the vibration becomes more obvious, and the air duct is prone to cracking due to frequent impacts, which can damage the cooling tower fans and cause production to stop.

[0004] Therefore, we propose a vibration reduction and noise reduction device for cooling tower fans to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a vibration reduction and noise reduction device for cooling tower fans.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling tower fan vibration reduction and noise reduction device, comprising a base and a cylinder, wherein a support plate is provided on the base via a vibration damping component, the cylinder is disposed on the support plate, and the fan body is disposed inside the cylinder via a buffer component.

[0007] Preferably, the shock-absorbing assembly consists of a piston rod, an inner chamber, a connecting hole, a spring, and an outer chamber. Both the inner chamber and the outer chamber are formed within the base, and the two ends of the connecting hole are respectively connected to the inner chamber and the outer chamber.

[0008] Preferably, the top end of the stopper rod is disposed on the lower surface of the support plate, and the bottom end of the stopper rod is slidably disposed in the inner chamber.

[0009] Preferably, the spring is disposed in the inner chamber, and the spring is located between the lower surface of the stopper rod and the bottom end of the inner wall of the inner chamber, and the original length of the spring is greater than the depth of the inner chamber.

[0010] Preferably, the buffer assembly consists of an arc block, a rubber block, and a support rod. The protrusion of the rubber block is inserted into the cylinder, the arc block is glued to the outer wall of the rubber block, and the protrusion of the arc block penetrates the protrusion of the rubber block and is located inside the cylinder.

[0011] Preferably, one end of the support rod is located on the outer wall of the fan body, and the other end of the support rod is bolted onto the protrusion of the arc block, and the two ends of the two arc blocks are connected to each other by pins.

[0012] Preferably, the cylinder has a circular hole that matches the protrusion of the rubber block, and the protrusion of the rubber block is movably inserted into the circular hole.

[0013] Preferably, the lower surface of the base is provided with four support seats, and the four support seats are arranged in a rectangular array on the lower surface of the base.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In use, the cooling tower fan vibration damping and noise reduction device of this utility model can be set at a designated position on the cooling tower. Through the design of rubber blocks and arc blocks, the protrusions of the arc blocks extend into the inside of the fan duct. The rubber blocks cover the contact surfaces of the arc blocks, the protrusions of the arc blocks and the cylinder body. The two arc blocks are locked to the outer wall of the cylinder body by pins. The fan is fixed to the protrusions of the arc blocks by support rods, so that the positions of the fan and the fan duct are fixed to each other. Through the vibration damping effect of the rubber, the support rod can absorb the vibration of the fan duct body, thereby avoiding the support rod directly hitting the fan duct when the bolt connection between the fan and the fan duct becomes loose due to long-term operation, which can reduce the risk of cracking of the fan duct.

[0016] Furthermore, when the fan duct vibrates, the vibration is transmitted to the piston rod, causing the piston rod to move up and down in the inner chamber. At this time, the spring deforms, and the oil in the inner and outer chambers repeatedly interacts through the connecting hole. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration. Through the cooperation of the spring and the damping, the overall vibration reduction of the fan duct is achieved.

[0017] This invention reduces the risk of cracking in the wind tunnel through the design of the buffer component, and reduces operating noise and improves the operational stability of the fan through the design of the shock absorption component. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the shock absorption component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the buffer component structure of this utility model;

[0022] Figure 5 For the present utility model Figure 4 A cross-sectional structural diagram.

[0023] Figure label:

[0024] 1. Support base; 2. Base; 3. Plug rod; 4. Support plate; 5. Pin; 6. Cylinder; 7. Arc block; 8. Rubber block; 9. Fan body; 10. Support rod; 11. Inner chamber; 12. Connecting hole; 13. Spring; 14. Outer chamber. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] like Figures 1-5 As shown, the present invention proposes a cooling tower fan vibration reduction and noise reduction device, which includes a base 2 and a cylinder 6. A support plate 4 is provided on the base 2 through a vibration damping component, and the cylinder 6 is provided on the support plate 4. The fan body 9 is provided inside the cylinder 6 through a buffer component.

[0028] Based on Example 1:

[0029] In use, the cooling tower fan vibration damping and noise reduction device of this utility model can be set at a designated position on the cooling tower. Through the design of rubber block 8 and arc block 7, the protrusion of arc block 7 extends into the inside of the fan duct, and rubber block 8 covers the contact surface between arc block 7, the protrusion of arc block 7 and the cylinder body 6. The two arc blocks 7 are locked to the outer wall of the cylinder body 6 by pins 5. The fan is fixed to the protrusion of arc block 7 by support rod 10, so that the positions of the fan and the fan duct are fixed to each other. Through the vibration damping effect of rubber, the support rod 10 can absorb the vibration of the fan duct body 6, thereby avoiding the support rod 10 directly hitting the fan duct when the bolt connection between the fan and the fan duct becomes loose due to long-term operation, which can reduce the risk of cracking of the fan duct.

[0030] Furthermore, when the fan duct vibrates, the vibration is transmitted to the stopper rod 3, causing the stopper rod 3 to move up and down in the inner chamber 11. At this time, the spring 13 deforms, and the oil in the inner chamber 11 and the outer chamber 14 repeatedly interact through the connecting hole 12. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration. Through the cooperation of the spring 13 and the damping, the overall vibration reduction of the fan duct is achieved.

[0031] Example 2

[0032] like Figures 1-5 As shown, the present invention proposes a cooling tower fan vibration reduction and noise reduction device. Compared with Embodiment 1, this embodiment further includes: a vibration damping component consisting of a plug rod 3, an inner chamber 11, a connecting hole 12, a spring 13, and an outer chamber 14. Both the inner chamber 11 and the outer chamber 14 are opened in the base 2. The two ends of the connecting hole 12 are connected to the inner chamber 11 and the outer chamber 14, respectively. The top end of the plug rod 3 is located on the lower surface of the support plate 4, and the bottom end of the plug rod 3 is slidably located in the inner chamber 11. The spring 13 is located in the inner chamber 11, and the spring 13 is located between the lower surface of the plug rod 3 and the bottom end of the inner wall of the inner chamber 11. The original length of the spring 13 is greater than the depth of the inner chamber 11. Vibration is transmitted to the plug rod 3, causing the plug rod 3 to move up and down in the inner chamber 11. At this time, the spring 13 deforms, and the oil in the inner chamber 11 and the outer chamber 14 repeatedly interact through the connecting hole 12. At this time, the friction between the hole wall and the oil and the internal friction between the oil molecules form a damping force on the vibration.

[0033] The buffer assembly consists of an arc block 7, a rubber block 8, and a support rod 10. The protrusion of the rubber block 8 is inserted into the cylinder 6. The arc block 7 is glued to the outer wall of the rubber block 8. The protrusion of the arc block 7 penetrates the protrusion of the rubber block 8 and is located inside the cylinder 6. One end of the support rod 10 is located on the outer wall of the fan body 9, and the other end of the support rod 10 is bolted to the protrusion of the arc block 7. The two ends of the two arc blocks 7 are connected to each other by pins 5. The rubber block 8 covers the contact surface between the arc block 7, the protrusion of the arc block 7, and the cylinder 6. The fan is fixed to the protrusion of the arc block 7 by the support rod 10. Through the shock absorption effect of the rubber, the support rod 10 can absorb the vibration of the fan cylinder 6.

[0034] The cylinder 6 has a round hole that matches the protrusion of the rubber block 8. The protrusion of the rubber block 8 is movably inserted into the round hole. The design of the round hole can limit the installation position of the rubber block 8.

[0035] The lower surface of the base 2 is provided with support bases 1. There are four support bases 1 in total, and the positions of the four support bases 1 are distributed in a rectangular array on the lower surface of the base 2.

[0036] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cooling tower fan shock absorption and noise reduction device, comprising a base (2) and a cylinder (6), characterized in that: The base (2) is provided with a support plate (4) through a shock-absorbing component, the cylinder (6) is provided on the support plate (4), and the inside of the cylinder (6) is provided with a fan body (9) through a buffer component.

2. The cooling tower fan vibration reduction and noise reduction device according to claim 1, characterized in that: The shock-absorbing assembly consists of a plug rod (3), an inner chamber (11), a connecting hole (12), a spring (13), and an outer chamber (14). The inner chamber (11) and the outer chamber (14) are both opened in the base (2). The two ends of the connecting hole (12) are connected to the inner chamber (11) and the outer chamber (14), respectively.

3. The cooling tower fan vibration reduction and noise reduction device according to claim 2, characterized in that: The top end of the stopper rod (3) is located on the lower surface of the support plate (4), and the bottom end of the stopper rod (3) is slidably located in the inner chamber (11).

4. The cooling tower fan vibration reduction and noise reduction device according to claim 2, characterized in that: The spring (13) is located inside the inner chamber (11) and is situated between the lower surface of the stopper rod (3) and the bottom of the inner wall of the inner chamber (11). The original length of the spring (13) is greater than the depth of the inner chamber (11).

5. The cooling tower fan vibration reduction and noise reduction device according to claim 1, characterized in that: The buffer assembly consists of an arc block (7), a rubber block (8), and a support rod (10). The protrusion of the rubber block (8) is inserted into the cylinder (6). The arc block (7) is glued to the outer wall of the rubber block (8). The protrusion of the arc block (7) penetrates the protrusion of the rubber block (8) and is located inside the cylinder (6).

6. The cooling tower fan vibration reduction and noise reduction device according to claim 5, characterized in that: One end of the support rod (10) is located on the outer wall of the fan body (9), and the other end of the support rod (10) is located on the protrusion of the arc block (7) by bolts. The two ends of the two arc blocks (7) are connected to each other by pins (5).

7. The cooling tower fan vibration reduction and noise reduction device according to claim 5, characterized in that: The cylinder (6) has a round hole that matches the protrusion of the rubber block (8), and the protrusion of the rubber block (8) is movably inserted into the round hole.

8. The cooling tower fan vibration reduction and noise reduction device according to claim 1, characterized in that: The lower surface of the base (2) is provided with a support seat (1), there are four support seats (1) in total, and the positions of the four support seats (1) are distributed in a rectangular array on the lower surface of the base (2).

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