Test pipe segment device for developing internal-flow two-phase-flow Flow-induced Vibration (FIV) experiment

Abstract

The invention provides a test pipe segment device for developing an internal-flow two-phase-flow Flow-induced Vibration (FIV) experiment, which comprises an experiment base station, a test pipe segment main body and a signal test device; the experiment base station comprises a rotary table, a short arm connection rod, a long arm connection rod and a rotating shaft and is used for supporting the test pipe segment main body, i.e., a transparent tempered glass pipe and a movable bracket; the signal test device comprises a gamma ray measurement instrument, an acceleration sensor, a pressure gauge,a paper tape, a movable trolley and the like; and the signal test device can be mounted at a corresponding position of the transparent tempered glass pipe according to test requirements. The device is mainly designed for researching a mutual relationship between flow patterns of two phases of flow in a pipeline and pipeline power response, and can simulate influence of the flow patterns in the pipe on the pipeline power response under different supporting conditions; and different states of rotation, front-and-back swing, left-and-right swing and the like of the pipeline are changed, the flowpatterns in the pipe are observed, and a vibration acceleration, a vibration curve, a vibration displacement and the like of the pipeline under the flow patterns of two different phases of flow are acquired.

Description

technical field [0001] The invention relates to the safety field of oil and gas storage and transportation engineering, which can simulate the vibration of the pipeline under different two-phase flow patterns, and the flow of the fluid in the pipeline under different conditions such as rotation, back and forth swing, left and right swing, etc. Device for experimental testing of pipe sections for flow-induced vibration of internal flow two-phase flow. Background technique [0002] Flow-induced vibration (FIV for short) is a professional term proposed by Blevins in 1977, which is defined as "the dynamic response process of a structure under the action of dynamically changing hydraulic forces". At present, there are few theoretical studies on the scientific problem of flow-induced vibration of two-phase flow in horizontal pipelines. The obtained experimental results show that the vibration intensity of the pipeline has a significant correlation with the flow pattern in the pipe...

AI Technical Summary

Problems solved by technology

However, the existing test platform is limited by the existing structural form, it is difficult to control and simulate different flow patterns in the pipe, and it is also difficult to control the dynamic response state of the pipe to analyze its changes to the flow pattern of the internal flow

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