Device for avoiding acoustic resonance of piping system

Abstract

The invention discloses a device for avoiding acoustic resonance of a piping system. The device comprises a vibration sensor, a collection processing control device and a heating device. The vibrationsensor is fixedly installed on the surface of a main pipeline; the heating device is installed on a branch pipeline; the vibration sensor is electrically connected with a collection and processing control device; and the collection and processing control device is electrically connected with a heating device. According to the device, the vibration sensor is arranged on the main pipeline, the vibration sensor is used for monitoring a vibration signal amplified by vibration after vortex shedding frequency and branch pipe audio frequency coupling when fluid passes through a tee joint of the mainpipeline, and cooling equipment is used for controlling the fluid temperature of the branch pipe to change the sound frequency, so that sound resonance is avoided; the device starts from the acousticresonance coupling mechanism, and the vortex shedding frequency in the main pipeline and the branch pipe audio frequency are decoupled by changing the temperature, so that excessive stress or fatigue, caused by acoustic resonance, of the pipeline is eliminated, and the safety of the piping system is improved.

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 ...

AI Technical Summary

Problems solved by technology

Part of the vibration can be considered in the design stage, but due to the existence of manufacturing and installation deviations, some vibrations cannot be completely resolved in the design stage

There are also many ways to eliminate vibration, but due to space and other factors, the methods to solve vibration problems 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 length of branch pipes. However, due to the limitation of tee manufacturing or layout space, branch pipes may It is not easy to modify

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