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Muffler

A muffler and noise reduction technology, which is applied to machines/engines, parts of pumping devices for elastic fluids, non-variable pumps, etc., can solve problems such as limited noise reduction effects, and achieve high noise reduction effects, light weight, The effect of simple structure

Inactive Publication Date: 2014-05-14
LIYANG ZHONGXING ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since another part of the noise of the fan is wind noise, the above-mentioned method has a very limited noise reduction effect on wind noise.

Method used

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Embodiment Construction

[0013] The technical solution is further described below in conjunction with the accompanying drawings and specific embodiments:

[0014] A new muffler, comprising a cylindrical shell, a sound-absorbing layer, a sound-absorbing cone and a sound-absorbing cone support; the sound-absorbing layer is attached to the inner wall of the cylindrical case; the middle of the sound-absorbing cone is a cylinder, and the two ends of the cylinder are respectively A cone is connected, and the bottom surface of the cone is connected with the end surface of the cylinder; the sound-absorbing cone is connected in the hollow cavity of the cylindrical casing through the sound-absorbing cone bracket, and the axis of the sound-absorbing cone is the same as the axis of the cylindrical casing.

[0015] There are two groups of sound-absorbing cone supports, which are respectively located at the two open ends of the cylindrical shell, and the apexes of the two sound-absorbing cones are respectively conne...

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Abstract

A novel muffler comprises a tubular casing, a muffling layer, a muffling cone and a muffling cone support. The muffling layer is bonded to the inner wall of the tubular casing, a cylinder is arranged in the middle of the muffling cone, cone bodies are connected with two ends of the cylinder, and the bottom faces of the cone bodies are connected with the end face of the cylinder. The muffling cone is connected in a hollow cavity of the tubular casing through the muffling cone support, and the axis of the muffling cone is identical with that of the tubular casing. Compared with similar products, the muffler is good in muffling effect, simple in structure, light in weight, less in material consumption and convenient to install. The muffling value can reach 20-30db, resistance loss is small, a high pressure fan is 40 water millimeters, and a low pressure fan is 10 water millimeters. The muffler is directly connected onto an air outlet of a fan and is applicable to various fans.

Description

technical field [0001] The technical proposal belongs to the technical field of mufflers, in particular to a muffler suitable for fans. Background technique [0002] In the prior art, in the production process of industrial and mining enterprises, the noise generated by the fan is one of the main noises. The general method used is to isolate the base of the fan from the ground with a buffer material. This method is to isolate the noise generated by the fan rotation from the ground, and can partially eliminate the energy that generates the noise. However, since another part of the noise of the fan is wind noise, the above-mentioned method has extremely limited noise reduction effect on wind noise. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, this technical solution proposes a new muffler, including a cylindrical shell, a sound-absorbing layer, a sound-absorbing cone, and a sound-absorbing cone support; the sound-absor...

Claims

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Application Information

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IPC IPC(8): F04D29/66
Inventor 崔洪彬
Owner LIYANG ZHONGXING ENVIRONMENTAL PROTECTION