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

A test tube and tester technology, applied in vibration test, measuring device, machine/structural component test, etc., can solve the problem of limited structural form, difficult to control the flow pattern in the simulated tube, and difficult to control the internal flow in the dynamic response state of the pipeline Type and other issues

Active Publication Date: 2018-12-21
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0020] The source of medium in the test pipe section is dyed water and air; the equipment provided is centrifugal pump, air compressor and gas-liquid mixer. The specific implementation method is:

[0021] (1) Experiments on the influence of internal two-phase flow flow state changes on pipeline dynamic response

[0022] The first step is to place three 7 movable supports on the 1 / 4, 1 / 2, 3 / 4 lengths of the 5 transparent tempered glass tubes, and fix the main body of the test tube section. Arrange the high-speed camera so that it is parallel to the main body of the test pipe section. At 1 / 4, 1 / 2, and 3 / 4 of the pipeline, arrange 8 gamma ray testers, 9 acceleration sensors, 12 pencils, 13 uniform moving cars and 14 paper tapes;

[0023] The second step is to set 6 groups of different working conditions, as shown in Table 1, in which the gas flow range is 0-480m 3 / h, the liquid flow range is 0-50m 3 / h;

[0024] Table 1 Experimental working conditions table

[0025]

[...

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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...

Claims

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Application Information

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IPC IPC(8): G01M7/06
CPCG01M7/06
Inventor 吴瑕牛淑昊贾文龙杨帆唐海丽
Owner SOUTHWEST PETROLEUM UNIV
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