Electrochemical Synchronous Testing System for Elbow Corrosion and Wear under Different Impact States

Abstract

Electrochemical synchronous testing system for elbow corrosion and wear under different impact states, including liquid storage system with automatic alarm for water shortage, flow meter, automatic sand adding system, power pump, rotatable electrochemical synchronous testing elbow system, automatic separation and return of sand liquid system, reflux pump; before the experiment, adjust the butt joint angle between the pipe joint flange and the elbow flange; during the test, add impact sand into the sand box, add the prepared corrosive solution into the liquid storage system, and start the Power pump, return pump and vibrating motor, adjust the sand box control valve and power pump power, this system can test the corrosion wear rate and Corrosion wear interaction rate. The introduction of automatic sand liquid separation and backflow technology in the system can effectively save the usage of corrosive fluid, reduce the test space and test cost; the system has the advantages of accurate test data, convenient use, low cost and easy promotion.

Description

Technical field [0001] The present invention belongs to the technical analysis system of laboratory corrosion, and specific to different impact states, elbow, corrosion, electrochemical synchronous test system, can analyze different locations, different plants and different impact speeds The degree of corrosion wear rate and corrosion wear interaction. Background technique [0002] Corrosion wear is a complex process that is affected by many factors, including material factors, electrochemical factors, solid phase particle factors, and mechanical factors, etc., many factors have brought great difficulties to corrosion wear analysis. In the long-range pipeline, due to the complexity structure of the elbow, it has the highest proportion of the failure accident associated with the elongation. [0003] At present, research methods for corrosion of components have mainly lost weight and electrochemical methods. The weight loss method has an intuitive exhibition effect on the severity ...

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Problems solved by technology

The rotating device has the advantages of simple equipment and low price, but the solution moves together with the rotating sample in the test, resulting in a decrease in relative speed, and requires a high verticality of the rotating shaft

For a two-phase flow containing solids, solid particles are also easily deposited at the bottom of the container, causing test deviations

The injection device can precisely control the impact angle to form a higher impact velocity, but the disadvantage is that it is too far from the actual working conditions

The pipeline device can better simulate the movement of the fluid in the pipeline, but the amount of liquid used is large, and the developed test system is difficult to simulate the corrosion and wear of the pipeline elbow in the multi-component flow containing solid particles.

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