Device and method for measuring surface corrosion rate of steel pipe

Abstract

The invention discloses a device and method for measuring the surface corrosion rate of a steel pipe, and belongs to the technical field of constructional engineering. The device comprises a steel pipe container, a water pipe, a water gate and a liquid mass conversion device. The bottom of the steel pipe container is connected to the liquid mass conversion device through the water pipe, and quantitative measuring liquid is injected into the steel pipe container; measurement liquid is discharged into the liquid mass conversion device through the water pipe to be weighed and calculated, and is converted into the surface corrosion rate of the steel pipe through the liquid mass conversion device. By the adoption of the device and method, operation is easy and convenient, economic benefits are high, the corrosion rate of the corroded steel pipe can be effectively detected, and the reinforcing effect of the corroded steel pipe is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a device and a method for measuring the surface corrosion rate of steel pipes. Background technique [0002] Due to the advantages of light weight, high strength, diverse structures, and convenient construction, steel structures have been widely used in various buildings at home and abroad such as high-rises, super high-rises, large factories, seaports, and docks. Steel pipe columns are the most commonly used components in steel structures. However, in practical engineering, the durability of steel pipe columns is often ignored. Many steel pipe columns in corrosive environments such as ocean and industrial atmosphere often have serious corrosion problems during service, which seriously affects the durability of steel pipe columns and causes a large number of accidents. Therefore, it is necessary to strengthen the corroded steel pipe column to ensure ...

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Problems solved by technology

However, it can only measure the corrosion rate in a very short time interval, so online monitoring should be carried out all the time, which is not suitable for the corrosion rate measurement required before reinforcement

[0007] The principle of these methods is to measure the corrosion situation by converting the cross-sectional changes of the corroded steel into various signals, but due to the respective defects of the methods and: (1) the equipment is difficult to operate, and it is difficult for construction practitioners to easily grasp, (2) To convert the measured data into the corrosion rate of the overall section of the corroded steel pipe, more calculations are required, which is not conducive to the rapid measurement of the on-site construction personnel. (3) It is difficult to apply in actual projects such as low economic benefits

[0008] At present, in the actual engineering reinforcement, there is no method that can effectively measure the corrosion rate of the steel pipe surface. On-site engineers often judge the degree of corrosion by experience and the color of the steel pipe surface, which has a great adverse effect on effectively improving the durability of the corroded steel pipe. , and also cause economic loss

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