Damping and noise reduction device of fan

A fan and noise reduction technology, which is applied in the field of shock absorption and noise reduction, can solve the problems of undiscovered axial flow fans, and achieve the effects of simple structure, reduced impact and extended service life.

Active Publication Date: 2013-12-25
GUANGXIN SHIPBUILDING & HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there is no perfect implementation plan

Method used

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  • Damping and noise reduction device of fan
  • Damping and noise reduction device of fan
  • Damping and noise reduction device of fan

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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 pressing plate 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 at the middle part of the first cylinder 12 and the lower pressing plate 21 at the middle part 22 of the second cylinder.

[0029] The first cylindrical body 12 , the second cylindrical body 22 and the third cylindrical body 23 are respectively fixed...

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Abstract

The invention relates to the technical field of damping and noise reduction, in particular to a damping and noise reduction device of an axial flow fan for a ship. The damping and noise reduction device comprises a fixing seat and a base, wherein the fixing seat is used for installing and fixing the fan, the base is arranged below the fixing seat, and the fixing seat is supported by the base through at least one first damping element. The damping and noise reduction device is simple in structure, safe and reliable and can achieve the good damping and noise reduction effects.

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...

Claims

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Application Information

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IPC IPC(8): F04D29/64F04D29/66
Inventor 易永光李坛灵甘海飞阳军方佳儿陈海林陈中原陈焕坤谢雨花严军任刚余汉洲梁栋
Owner GUANGXIN SHIPBUILDING & HEAVY IND
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