High-pressure liquid charging pipeline integrated active silencer

A liquid-filled pipeline and muffler technology, which is applied to pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of being unable to adapt to the change of the noise frequency of the pipeline system, and the muffler cannot track the noise frequency. The sound effect is good, the effect of the noise reduction frequency bandwidth

Active Publication Date: 2015-04-08
HARBIN ENG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The noise reduction frequency band and noise reduction performance of the traditional resistance or resistance type muffler are determined after the structure is determined, and cannot adapt to the change of the

Method used

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  • High-pressure liquid charging pipeline integrated active silencer
  • High-pressure liquid charging pipeline integrated active silencer
  • High-pressure liquid charging pipeline integrated active silencer

Examples

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Example Embodiment

[0016] The present invention will be described in more detail below with examples in conjunction with the drawings.

[0017] Combine Figure 1-Figure 3 The high-pressure liquid-filled pipeline integrated active muffler based on the tubular piezoelectric ceramic actuator of the present invention includes a casing 1, a tubular piezoelectric ceramic actuator 2 arranged in the middle of the casing, an upstream pipe section 3 and its installation The inner upstream pipeline pressure pulsation sensor 4, the downstream pipe section 5 and the downstream pipeline pressure pulsation sensor 6 installed inside it, the signal picking and conditioning system 7, the power amplifier system 8, the DSP-based high-speed signal processing system 9, the upstream and downstream connection method Lan 10, 11, elastic connection 12, 13.

[0018] The present invention is installed in the pipeline system through two flanges 10, 11; the tubular piezoelectric ceramic actuator 2 is connected to the upstream pi...

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Abstract

The invention provides a high-pressure liquid charging pipeline integrated active silencer. The high-pressure liquid charging pipeline integrated active silencer mainly comprises a cylindrical housing, an actuator arranged in the middle of the housing and based on tubular piezoelectric ceramics, sensors on the inner side of upstream and downstream pipe sections, and a signal pick-up and conditioning system, a power amplifying system and a DSP-based high-speed signal processing system between the housing and the pipe section of the actuator. The high-pressure liquid charging pipeline integrated active silencer is usable for a high-pressure liquid charging pipeline, based on the tubular piezoelectric ceramic-based actuator, and highly integrated. The active pipeline silencer is capable of providing counter noise to counteract the original noise in the pipeline according to the frequency, the size and the phase of the internal flow noise in the pipeline measured in real time, and therefore, the silencer is capable of adapting to the change of the noise frequency, wide in silencing bandwidth and good in silencing effect.

Description

technical field [0001] The invention relates to a pipeline muffler, in particular to an integrated active muffler for an active liquid-filled pipeline. Background technique [0002] Pipeline systems have very important applications in various industrial fields, especially in the shipbuilding industry. Liquid-filled pipeline systems (such as domestic water pipelines and cooling water pipelines, etc.) commonly exist in various ships and play an important role. important role. However, the vibration and noise of the liquid-filled pipeline system has not been well controlled, and has become a difficult problem for people. Installing a muffler in a liquid-filled line is the most widely used method. The noise reduction frequency band and noise reduction performance of traditional resistance or resistance type mufflers are determined after the structure is determined, which cannot adapt to changes in the noise frequency of the pipeline system caused by changes in pump operating c...

Claims

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Application Information

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IPC IPC(8): F16L55/033
CPCF16L55/033
Inventor 杨铁军石慧孙瑶张羽飞黄迪徐阳吴磊刘学广朱明刚杜敬涛
Owner HARBIN ENG UNIV
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