A fan vibration and noise reduction device

Abstract

The invention relates to the technical field of shock absorption and noise reduction, in particular to a shock absorption and noise reduction device for an axial flow fan on a ship. The utility model comprises a fixing base for installing and fixing the fan, and a base arranged under the fixing base, and the base supports the fixing base through at least one first shock absorbing element. It has a simple structure, is safe and reliable, and can play a better shock absorption and noise reduction effect.

Description

Technical field:

[0001] The invention relates to the technical field of vibration reduction and noise reduction, in particular to a vibration reduction and noise reduction device for an axial flow fan on a ship. Background technique:

[0002] Ship noise refers to the uncomfortable sound made by the ship's power machinery (main engine, auxiliary engine, propeller, propulsion system, etc.) and auxiliary machinery (pumps, fans, etc.) during operation.

[0003] As a ship's auxiliary machinery, although its operating power is smaller than that of the main engine and propeller, and its noise intensity is relatively low, it still affects the crew's own working and living environment and physical health. Especially when the fan equipment is installed near the cab or near the passenger cabin or working cabin, it is easy to cause serious noise interference.

[0004] At the same time, the vibration source that generates noise is one of the root causes of fatigue damage to the ship str...

Examples

Embodiment Construction

[0028] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 and Figure 7 As shown, a fan shock and noise reduction device, it includes a fixed seat 1 for installing a fixed fan and a base 2 located below the fixed seat and fixed to the hull. The fixed seat includes an upper pressing plate 11 and is arranged on the upper pressing plate The lower first cylinder 12 , the base includes a lower pressing plate 21 and a second cylinder 22 and a third cylinder 23 disposed above the lower pressing plate 21 . The blower fan 3 is fixed on the upper middle part of the upper platen 11 . Ventilation holes 4 for the air driven by the fan 3 to flow in or out are respectively opened on the upper pressing plate 11 in the middle of the first cylinder 12 and on the lower pressing plate 21 in the middle of the second cylinder 22 .

[0029] The first cylindrical body 12, the second cylindrical body 22, and the third cylindrical body 23 are all fixed on the upper pressing ...

Technical field:

[0001] The invention relates to the technical field of vibration reduction and noise reduction, in particular to a vibration reduction and noise reduction device for an axial flow fan on a ship. Background technique:

[0002] Ship noise refers to the uncomfortable sound made by the ship's power machinery (main engine, auxiliary engine, propeller, propulsion system, etc.) and auxiliary machinery (pumps, fans, etc.) during operation.

[0003] As a ship's auxiliary machinery, although its operating power is smaller than that of the main engine and propeller, and its noise intensity is relatively low, it still affects the crew's own working and living environment and physical health. Especially when the fan equipment is installed near the cab or near the passenger cabin or working cabin, it is easy to cause serious noise interference.

[0004] At the same time, the vibration source that generates noise is one of the root causes of fatigue damage to the ship str...

Examples

Embodiment Construction

[0028] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 and Figure 7 As shown, a fan shock and noise reduction device, it includes a fixed seat 1 for installing a fixed fan and a base 2 located below the fixed seat and fixed to the hull. The fixed seat includes an upper pressing plate 11 and is arranged on the upper pressing plate The lower first cylinder 12 , the base includes a lower pressing plate 21 and a second cylinder 22 and a third cylinder 23 disposed above the lower pressing plate 21 . The blower fan 3 is fixed on the upper middle part of the upper platen 11 . Ventilation holes 4 for the air driven by the fan 3 to flow in or out are respectively opened on the upper pressing plate 11 in the middle of the first cylinder 12 and on the lower pressing plate 21 in the middle of the second cylinder 22 .

[0029] The first cylindrical body 12, the second cylindrical body 22, and the third cylindrical body 23 are all fixed on the upper pressing ...

Images