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Silencer for adsorption-based gas separation systems

一种消音器、吸收室的技术，应用在消音装置、用于弹性流体的泵送装置的部件、机器/发动机等方向，达到简单内部构造、消除钢壳振动问题、低压降的效果

Active Publication Date: 2009-06-17
PRAXAIR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method has certain limitations, because the design of this resonator only works at a given frequency under specific design conditions

Method used

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  • Silencer for adsorption-based gas separation systems
  • Silencer for adsorption-based gas separation systems
  • Silencer for adsorption-based gas separation systems

Examples

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Embodiment Construction

[0027] As described above, the present invention relates to attenuation of noise of a vacuum blower using a silencer. More specifically, the present invention provides a low cost, reliable and efficient muffler that can reduce noise levels to approximately 90 dBA. In an exemplary embodiment of the invention, the muffler can be used at the discharge of a vacuum blower in a large tonnage oxygen vacuum pressure swing adsorption (oxygen VPSA) plant. The muffler includes a reaction chamber for attenuating low frequency vibrations and an absorption chamber for attenuating middle and high frequency noises.

[0028]The inner and outer walls of the muffler are composed of concrete, including reinforced concrete (eg, reinforced concrete). However, other materials of construction may also be suitable for use in the present invention. Bricks and / or masonry blocks may be used, for example, but are not to be construed as limited thereto. In addition, the materials of construction of the ...

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PUM

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Abstract

The present invention generally relates to the attenuation of vacuum blower noise using a silencer. More particularly, the present invention relates to a low-cost, reliable and efficient silencer for reducing noise levels in adsorption-based gas separation plants from the discharge of the vacuum blower or from the feed blower inlet, to about the 90 dBA level or less, at the silencer opening to the atmosphere. The silencer includes at least one reactive chamber (s) (28, 30, 32) to attenuate low frequency pulsations and at least one absorptive chamber (s) (40, 42, 44) to attenuate noise at medium to high frequency noise.

Description

【Technical field】 [0001] The present invention generally relates to the use of silencers to attenuate blower noise in adsorption based gas separation systems. More particularly, the present invention relates to a low-cost, reliable, high-efficiency silencer connected to the discharge of a vacuum blower or the inlet of a blower for adsorption-based gas separation plants. The muffler is capable of reducing noise levels to approximately 90dBA or less at the muffler opening to atmosphere. 【Background technique】 [0002] Adsorption-based gas separation plants (for example, pressure swing adsorption systems (PSA systems) or vacuum pressure swing adsorption systems (VPSA systems)) operate in different capacities. There is and will be an increasing demand for such equipment with higher finished product yields. One way to achieve this is to increase equipment size, and as the current trend is, these larger tonnages are becoming more commercially cost-effective. [0003] Large tonn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/02F01N1/08
CPCF04D29/664F04D29/665F01N1/02F01N1/08
Inventor C·E·切利克J·斯莫莱尔克M·V·巴索特利
Owner PRAXAIR TECH INC
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