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Testing device for simulating flow erosion corrosion of pipeline

A test device and scouring corrosion technology, which is used in measuring devices, testing wear resistance, instruments, etc., can solve problems such as difficulty in avoiding losses, inability to arbitrarily adjust the inclination of test pipe fittings, and inability to simulate the effect of erosion and corrosion, and eliminate the flow field. perturbation effect

Pending Publication Date: 2021-07-20
CHINA SPECIAL EQUIP INSPECTION & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at present, it is only based on actual experience to estimate the erosion and corrosion law of the fluid medium on the pipe wall in the actual working condition, and there is no test device for simulating the erosion and corrosion of the pipeline flow
[0004] Moreover, in actual working conditions, the flow erosion corrosion of the fluid medium in the pipe is more complicated. When there is an angle on the inner wall of the pipe (flow to the pipe), the synergistic effect of mechanical action and corrosion makes it difficult to predict the loss. In the prior art, the test device for studying the corrosion effect of the fluid medium on the pipe cannot adjust the inclination angle of the test pipe arbitrarily, resulting in the inability to simulate multi-angle Influence of fluid medium flow on erosion and corrosion of pipe wall under certain conditions

Method used

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  • Testing device for simulating flow erosion corrosion of pipeline
  • Testing device for simulating flow erosion corrosion of pipeline
  • Testing device for simulating flow erosion corrosion of pipeline

Examples

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Effect test

Embodiment 1

[0114] The invention provides a test device for simulating pipeline flow erosion and corrosion. The working principle of the simulation test for changing the angle of the test pipe fitting sample is as follows:

[0115] Cut a small piece from the pipeline for transporting fluid medium in actual working conditions as a test pipe sample, fix the test pipe sample on the test piece fixing plate 123 of the test piece fixing fixture 12, and then clamp the bottom plate 121 of the test piece fixing fixture 12 Connect it to the draw-in groove 110 provided on the inner wall of the test pipeline section 11 (the test pipeline section 11 is an elbow section), and adjust the length of the fixture fixture 5 according to the length of the draw-in groove 110 at the same time. Insert a plurality of clamp fixtures 5 so as to ensure that the length of all clamp fixtures 5 in the specimen fixture 12 and the draw-in groove 110 is the length of the draw-in groove 110, and at the same time make the fi...

Embodiment 2

[0119] Embodiment 2: the present invention provides a kind of simulated pipe flow erosion corrosion test device, the working principle of the simulated test of the constant angle of the test pipe fitting sample is as follows:

[0120] Cut out a plurality of small pieces from the pipeline for transporting fluid medium in actual working conditions as a plurality of test pipe fitting samples, and fix the plurality of test pipe fitting samples one by one on a plurality of horizontal test piece fixing fixtures 13, and then fix the horizontal test piece The clamp 13 is clamped in the slot 110 provided on the inner wall of the test pipeline section 11 (the test pipeline section 11 is a straight pipe section), and at the same time, the length of multiple clamp fixtures 5 is adjusted according to the length of the slot 110, so as to ensure that the specimen is fixed. 12 and the length of all clamp fixtures 5 in the draw-in groove 110 are the length of draw-in groove 110, so that after a...

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Abstract

The invention provides a testing device for simulating flow erosion corrosion of a pipeline. A test cavity is formed in an experiment cabin; one port of an upstream pipeline is communicated with an inlet of the experiment module, the other port of the upstream pipeline is communicated with a fluid medium storage device, and an upstream temperature sensor and an upstream pressure sensor are respectively mounted on the upstream pipeline; one port of the downstream pipeline is communicated with an outlet of the experiment module, a fluid medium in the fluid medium storage device sequentially passes through the upstream pipeline, the test cavity and the downstream pipeline, and a downstream temperature sensor and a downstream pressure sensor are respectively mounted on the downstream pipeline; and the test pipe fitting sample is arranged in the test cavity. According to the testing device for simulating the flow erosion corrosion of the pipeline, the test pipe fitting sample can be placed in the test cavity, the fluid medium passes through the test cavity to erode the test pipe fitting sample, and the erosion corrosion rule of the fluid medium to the pipe wall under the actual working condition is researched.

Description

technical field [0001] The invention relates to the technical field of pipeline corrosion test equipment, in particular to a simulation pipeline flow erosion corrosion test equipment. Background technique [0002] In many fields such as petrochemical industry and pipeline operation safety, pipelines are required to transport media such as gas, liquid or liquid-solid mixture, and because many fluid media are corrosive, they will cause corrosion to the inner wall of the pipeline. For the progress of the pipeline transportation field , so it is of great significance to study the erosion and corrosion law of the fluid medium on the pipeline. [0003] But at present, it is only based on actual experience to estimate the erosion and corrosion law of the fluid medium on the pipe wall in the actual working condition, and there is no test device for simulating the erosion and corrosion of the pipeline flow. [0004] Moreover, in actual working conditions, the flow erosion corrosion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/56
CPCG01N3/02G01N3/567
Inventor 林楠王俊强孟涛何仁洋罗艳龙王海涛李聪
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST
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