Similar material simulation experiment apparatus and test method for pipeline crossing river

Abstract

The invention discloses a similar material simulation experiment apparatus for a pipeline crossing a river. The apparatus comprises a water circulation system, a medium circulation system, a simulation box and a data acquisition system. A simulated riverbed is arranged at the bottom of the simulation box, the medium circulation system comprises a medium box, a medium pipe and a medium pump, and one end of the medium pipe is connected with the medium pump, extends out of the medium box, goes into the simulation box, is buried beneath river sand and then penetrates out of the simulation box to return to the medium box; the water circulation box comprises a water tank, a water pump, at least one water inlet pipe and a water outlet pipe, the water inlet pipe inputs water into the simulation box from the water tank, and the water outlet pipe is connected with the water tank and the simulation box to enable the water to flow back to the water tank from the simulation box so as to form the water circulation system; and the data acquisition system comprises a plurality of test probes, a data transmission line and a data acquisition instrument. The invention also discloses a method for testing by use of the simulation apparatus. The method comprises setting parameters for installing the simulation apparatus according to onsite actual conditions in accordance with a geometric and dynamic similarity ratio, and acquiring data for analysis.

Description

technical field [0001] The invention relates to the technical field of similar material simulation experiments, in particular to a similar material simulation experiment device and testing method for pipelines crossing rivers. Background technique [0002] The working environment of river bottom and submarine pipelines (especially pipelines used to transport oil and gas) is harsh. Once excessive defects occur on the pipe wall, it may cause damage and leakage of the pipeline, with serious consequences. In order to avoid this situation, it is necessary to inspect the pipeline regularly and irregularly, in order to find the defects as early as possible, and repair and replace the defective pipelines in time. [0003] Similar material simulation is a kind of scientific experiment. Based on the similarity theory, artificial materials with similar physical and mechanical properties are used to make a similar model according to the actual prototype of the pipeline and the riverbed ...

AI Technical Summary

Problems solved by technology

However, there are few studies on similar material simulation experiments for pipelines crossing rivers.

[0004] At present, most of the detection of pipeline crossings at home and abroad adopts the external detection technology of the pipeline, that is, the detection equipment is placed outside the pipeline to understand the condition of the pipeline. Pipeline inspection is an indirect pipeline inspection, but there are problems such as complex on-site inspection environment, high cost of inspection equipment, and large errors between the obtained inspection data and actual data.

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