Roots blower pipeline noise reduction device

A Roots blower and pipeline technology, which is applied to components, mechanical equipment, machines/engines, etc. of pumping devices for elastic fluids, can solve the problems of large noise and wide radiation range of inlet and outlet pipelines, and achieve reduction Pollution and the effect of improving the factory boundary environment

Inactive Publication Date: 2013-08-14
SHANDONG ZHANGQIU BLOWER
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a Roots blower pipeline noise reduction device. This invention solves the problems of the existing Roots blower's inlet and outlet pipelines with large noise and wide radiation range when it is working, and can significantly reduce noise. The dangers of pollution to the environment

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  • Roots blower pipeline noise reduction device
  • Roots blower pipeline noise reduction device
  • Roots blower pipeline noise reduction device

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Embodiment Construction

[0018] like figure 1 As shown, a Roots blower pipeline noise reduction device of the present invention includes a sound-absorbing box 1 and an internal sound-absorbing layer 3 wrapped outside the pipeline 2, and the internal sound-absorbing layer 3 is arranged inside the sound-absorbing box 1, A spacer cavity 4 is formed between the inner wall of the sound-absorbing box 1 and the inner sound-absorbing layer 3, and the sound-muffling box 1, the spacer cavity 4 and the inner sound-absorbing layer 3 together form a secondary sound-absorbing composite type structure.

[0019] The above-mentioned secondary noise-absorbing composite structural design has obvious sound-absorbing and noise-reducing effects. When the noise is radiated from the pipeline of the Roots blower, it first enters the internal sound-absorbing layer 3, and the internal sound-absorbing layer 3 decays. After part of the noise penetrates the internal sound-absorbing layer 3, it radiates to the sound-absorbing box ...

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Abstract

The invention discloses a Roots blower pipeline noise reduction device which comprises silencing box and an internal sound absorbing layer wrapped outside a pipeline. The internal sound absorbing layer is disposed in the silencing box. A cavity is formed between the inner wall of the silencing box and the sound absorbing layer. The silencing box, the cavity and the internal sound absorbing layer form a secondary silencing composite structure. The internal sound absorbing layer is three-layered and comprises a galvanized plate, high-density centrifugal glass cotton and low-density centrifugal glass cotton from outside to inside. The silencing box is four-layered and comprises a face protecting layer, a sound insulation layer, a sound absorbing layer and a inner plate form outside to inside. By the secondary silencing composite structure, the problem that inlet-outlet pipeline noise is high and radiation range is wide during operation of a Roots blower is solved, and noise pollution to environments is reduced effectively. The device is suitable for wide popularization in places with severe noise pollution.

Description

technical field [0001] The invention relates to a noise reduction device, in particular to a Roots blower pipeline noise reduction device. Background technique [0002] Usually during the use of the Roots blower, the noise of the inlet and outlet pipelines of the Roots blower is relatively large, and the noise radiates in a wide range. If no noise reduction measures are taken, it will affect the physical and mental health of the staff and the normal life of others. influences. However, when Roots blowers are used in industrial production at present, no noise reduction measures have been taken at the inlet and outlet pipelines of Roots blowers with large noise and wide radiation range, which has caused the actual emission of noise in many industrial enterprises to be unable to Reaching the environmental noise emission standards of the industrial enterprise boundary, resulting in serious environmental pollution of the industrial enterprise boundary, which has a serious impact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66
Inventor 侯涛刘士华高爱珍李金辉甄霞
Owner SHANDONG ZHANGQIU BLOWER
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