A Device for Avoiding Acoustic Resonance of Piping System

Abstract

The invention discloses a device for avoiding acoustic resonance of a piping system, which includes a vibration sensor, acquisition and processing control equipment, and heating equipment. The vibration sensor is fixedly installed on the surface of the main pipeline, the heating equipment is installed on the branch pipeline, and the vibration sensor The sensor is electrically connected to the collection and processing control equipment, and the collection and processing control equipment is electrically connected to the heating equipment. In the present invention, by configuring the vibration sensor on the main pipeline, the vibration sensor monitors the vibration signal of the amplified vibration after the fluid passes through the tee of the main pipeline due to the coupling of the vortex shedding frequency and the acoustic frequency of the branch pipe, and controls the change of the fluid temperature of the branch pipe through the heat removal equipment Acoustic frequency, so as to avoid the occurrence of acoustic resonance; starting from the mechanism of acoustic resonance coupling, the device adopts changing temperature to decouple the frequency of vortex shedding in the main pipeline from the acoustic frequency of the branch pipe, eliminating the excessive stress or fatigue of the pipeline caused by acoustic resonance, and improving the safety of the piping system.

Description

technical field

[0001] The invention relates to the technical field of pipeline resonance elimination, in particular to a device for avoiding acoustic resonance of a pipeline system. Background technique

[0002] In electric power, chemical industry and military industry, etc., there is widespread vibration of fluid piping system, and the vibration itself is related to piping structure, fluid working conditions and operation mode. Part of the vibration can be considered in the design stage, but due to deviations in manufacturing and installation, some vibrations cannot be completely resolved in the design stage. There are also many ways to eliminate vibration, but due to the limitation of space and other factors, the methods to solve the vibration problem are also limited. Acoustic resonance is a resonance phenomenon caused by fluid-induced vibration and acoustic frequency coupling. It often occurs in main pipes with branch pipes. It can be avoided by changing the size and ...

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