Frequency dividing combined pressure fluctuation attenuation device and method

A technology of pressure pulsation and attenuation device, which is applied in the direction of pipe components, mechanical equipment, pipes/pipe joints/pipes, etc. problems such as large quality, to achieve the effect of facilitating processing and manufacturing, improving service life, and reducing fluid noise

Inactive Publication Date: 2020-09-25
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

At present, common pressure pulsation attenuators include accumulators and Helmholtz mufflers. However, the natural frequency of traditional accumulators is low, and the effect of reducing low-frequency pressure pulsations is better, and the effect of reducing high-frequency pressure pulsations is poor. Traditional accumulators cannot eliminate low-frequency pressure pulsation an

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  • Frequency dividing combined pressure fluctuation attenuation device and method
  • Frequency dividing combined pressure fluctuation attenuation device and method
  • Frequency dividing combined pressure fluctuation attenuation device and method

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[0065] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0066] Such as figure 1 As shown, the embodiment of the present invention provides a frequency-divided combined pressure pulsation attenuation device, which includes a body 1, an accumulator 3, and an attenuator 2, wherein the body 1 is a hollow structure and is used as a delivery channel for the fluid to be attenuated 17; The accumulator 3 is arranged outside the body 1 and is connected to the conve...

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Abstract

The invention belongs to the technical field of silencing and in particular discloses a frequency dividing combined pressure fluctuation attenuation device and method. The device comprises a body, anenergy accumulator and an attenuator, wherein the body is of a hollow structure and is taken as a conveying channel of a to-be-attenuated fluid; the energy accumulator is arranged on the body and is connected to the conveying channel; the attenuator is arranged around the energy accumulator and is also connected to the conveying channel. Therefore, pressure fluctuation of the fluid is attenuated as the energy accumulator and the attenuator are matched. The device can reduce fluid noise and pipeline vibration effectively and is suitable for multi-stage frequency attenuation of pressure fluctuation of various fluids such as water, hydraulic oil and gas.

Description

technical field [0001] The invention belongs to the technical field of noise reduction, and more specifically relates to a frequency division combined pressure pulsation attenuation device and method. Background technique [0002] In order to eliminate the pressure pulsation of the fluid power system and achieve the purpose of reducing noise and vibration, it is generally necessary to install a pressure pulsation muffler, also called a pressure pulsation attenuator, in the pipeline of the system. At present, common pressure pulsation attenuators include accumulators and Helmholtz mufflers. However, the traditional accumulator has a low natural frequency, and its effect of reducing low-frequency pressure pulsations is better, and the effect of reducing high-frequency pressure pulsations is poor. Traditional accumulators cannot eliminate low-frequency pressure pulsation and high-frequency pressure pulsation at the same time, that is, it is impossible to achieve multi-frequency...

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Application Information

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IPC IPC(8): F16L55/04F16L55/033F16L55/052
CPCF16L55/041F16L55/033F16L55/052
Inventor 罗小辉王家祥李秋坪尚搏宁
Owner HUAZHONG UNIV OF SCI & TECH
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