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Sound attenuation and noise reduction device applied to air duct

A noise reduction and noise reduction technology, applied in the direction of pipe elements, pipe supports, pipes/pipe joints/pipes, etc., can solve problems such as vibration and noise of blower operation, achieve good vertical bearing effect, meet conventional displacement requirements, and reduce noise and vibration. the effect of spreading

Pending Publication Date: 2020-02-28
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) Blower running vibration noise
[0011] (2) Resonant noise between the gas in the air duct and the pipe wall

Method used

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  • Sound attenuation and noise reduction device applied to air duct
  • Sound attenuation and noise reduction device applied to air duct
  • Sound attenuation and noise reduction device applied to air duct

Examples

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Embodiment Construction

[0041] The content of the present invention is further described below through specific examples.

[0042] A combined and quick-connect noise reduction device for air ducts, characterized in that the noise reduction device includes a flange piece 1, a flexible joint 2, a flange piece 1, a muffler 4 and a flange Combination components such as the blue piece 1, the support member and the shock absorber can be combined, disassembled and installed arbitrarily. At the same time, the noise reduction and noise reduction device can be quickly connected to the pipeline at any desired position in the original pipeline.

[0043] The material of the flange piece 1 can be metal, glass fiber reinforced plastic, etc., and its strength is equal to or higher than the design strength of the original pipeline.

[0044] The flange piece can be spliced ​​with other components through standard bolts, and a flexible shock-absorbing material is arranged in the middle of the flange piece.

[0045] T...

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Abstract

The invention relates to a sound attenuation and noise reduction device applied to an air duct. The sound attenuation and noise reduction device includes a flexible joint and a muffler. Flange piecesare arranged at both ends of the flexible joint and the muffler. A pipe at the original air duct is cut and removed, and the flange pieces are installed at pipe orifices by welding. The flange piece at one end of the flexible joint is connected with the flange piece on the end part of the pipe on one side, and the flange piece at the other end of the flexible joint is connected with the flange piece at one end of the muffler. The flange piece at the other end of the muffler is connected with the flange piece on the end part of the pipe on the other side. The sound attenuation and noise reduction device can realize arbitrary combination, disassembly and installation. Meanwhile, the sound attenuation and noise reduction device can be quickly connected and installed with the pipes at any desired position in an original pipeline. Through the installation of the sound attenuation and noise reduction device in the middle of the existing pipe, the impact of vibration generated during the operation of the air duct on existing surrounding structures can be efficiently and safely reduced, the decibel value of noise generated during the operation is reduced, and it is ensured that the factoryboundary noise meets the standard.

Description

technical field [0001] The invention relates to a noise reduction device applied to an air duct, which can efficiently and safely reduce the impact of the vibration generated during the operation of the air duct on the surrounding existing structures, reduce the decibel value of the noise generated during operation, and thereby improve the quality of the factory boundary. mark. Background technique [0002] The deep bed filter has become the preferred process in the upgrading and upgrading of sewage plants because of the following characteristics, and is more and more used in upgrading and upgrading projects. [0003] (1) It can easily deal with abnormal conditions such as peak flow or sludge expansion in treatment plants, and keep the effluent TN, SS, and TP stable and up to standard for a long time; [0004] (2) Biological filter + V-type filter (or filter cloth filter)", to achieve dual-use in one pool, prolong the filtration cycle, improve water production and effluent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/035F16L55/033F16L3/08
CPCF16L3/08F16L55/033F16L55/035
Inventor 彭鹏朱海明李梦琼张鹏飞刘斌刘翔朱琳阮康华
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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