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Segmented closed medium-and-large-section resistive silencer

A resistive muffler and large-section technology, applied in the direction of instruments, sound-producing equipment, etc., can solve the problems of many installation procedures, difficult installation, low product installation efficiency, etc., to control construction quality, improve construction efficiency, and control installation costs. Effect

Active Publication Date: 2018-12-07
中国船舶重工集团公司第七0三研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a segmented closed medium and large cross-section resistive muffler to solve the problems of many on-site installation procedures and high installation difficulty in the factory of existing medium and large cross-section resistive mufflers, which further lead to low product installation efficiency.

Method used

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  • Segmented closed medium-and-large-section resistive silencer

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Effect test

specific Embodiment approach 1

[0015] Specific implementation mode one: combine figure 1 To illustrate this embodiment, this embodiment provides a segmented closed type medium and large cross-section resistive muffler, including: several silencing sections 10, sealing and filling silencing components 3, and inner silencing wall connecting plates 2;

[0016] Each of the sound-absorbing sections 10 includes an outer sound-absorbing wall 7 and an inner sound-absorbing wall 1; the inner sound-absorbing wall 1 is arranged opposite to the outer sound-absorbing wall 7, and is fixedly connected with the outer sound-absorbing wall 7 by a plurality of sound-absorbing wall fastening nails 5; the outer sound-absorbing wall The width of 7 is greater than the inner sound-absorbing wall 1, and the two ends of the inner sound-absorbing wall 1 are respectively extended to the outer sound-absorbing wall 7 to be shaped on a baffle plate 9; Filled with sound-absorbing filling material 4; the two ends of the outer sound-absorbi...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the sealing and sound-absorbing assembly 3 includes a sound-absorbing material block and a non-metallic sound-absorbing wrapping layer 8 arranged on the surface of the sound-absorbing material block. The prefabricated products of the sealing and sound-absorbing components leave the factory, which is convenient for on-site sealing and installation, effectively avoiding the difficulty of installing sound-absorbing materials on site, and fully ensuring the sound-absorbing quality of the joints of the sound-absorbing sections 10 . At the same time, a non-metallic sound-absorbing wrapping layer 8 is arranged outside the sound-absorbing material block to form a closed structure, which ensures the use function and life of the product.

[0023] Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the gap between the baffle plate 9 and the outer sound-absorbing wall 7 is 8-12 mm. Since the baffle 9 needs to be surrounded by the outer silencing wall 7 and the inner silencing wall 1 to form a closed space for filling the silencing filling material 4 and other internal vulnerable silencing components, the baffle 9 needs to be close to the outer silencing wall 7; however, When the temperature of the flue gas inside the flue gas channel where the muffler is located is higher than 200°C, the muffler will pass the internal smoke temperature to the outer sound-absorbing wall 7 through the baffle 9. Keep a certain gap between them; in this embodiment, the gap is set to 8mm to 12mm, which can not only ensure that when the internal flue gas temperature is high, it can prevent the heat transfer of the smoke temperature to the outer sound-absorbing wall 7, but also ensure the closure of the sound-a...

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Abstract

The invention, which belongs to the technical field of pipeline silencers, provides a segmented closed medium-and-large-section resistive silencer comprising a plurality of noise reduction sections, sealing and noise reduction assemblies and inner sound-deadening wall connecting plates. Each noise reduction section includes an outer noise reduction wall and an inner noise reduction wall that is opposite to the outer noise reduction wall and is fixedly connected with the outer noise reduction wall by a plurality of noise reduction fastening nails. Space formed by the inner noise reduction walls, the outer noise reduction walls, and baffles is filled with sound-absorbing filling materials. Every two outer noise reduction wall of the plurality of noise reduction sections are connected to forma pipe; the inner noise reduction walls of every two adjacent noise reduction sections are connected by the inner sound-deadening wall connecting plate arranged at the inner side; and the quadrangular space formed by the two adjacent noise reduction sections and the inner sound-deadening wall connecting plate is filled with the sealing and noise reduction assembly. Therefore, a problem of low product installation efficiency caused by many filed installation procedures and high installation difficulty for factory leaving of parts of the existing medium-and-large-section resistive silencers issolved. The segmented closed medium-and-large-section resistive silencer can be used for silencer designing and production.

Description

technical field [0001] The invention relates to a resistive muffler and belongs to the technical field of pipeline mufflers. Background technique [0002] Industrial medium and large cross-section resistive mufflers, because of their shape and cross-sectional dimensions, often exceed the normal range of road and rail transportation in my country. The medium and large cross-sections here refer to resistive mufflers with a cross-sectional diameter greater than 4 meters. In the process of design and manufacture, the delivery and installation methods of spare parts leaving the factory and on-site assembly are adopted. Although the spare parts leave the factory to solve the transportation problem, it brings many disadvantages: [0003] 1. Due to the high technical content and complex structure of large-scale silencer equipment, on-site installers must have certain professional knowledge and installation and construction experience, and the delivery of spare parts will undoubtedly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/16
CPCG10K11/16
Inventor 程东梅李扬韩环成杨峥宋玉柱刘淼
Owner 中国船舶重工集团公司第七0三研究所
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