Test system for evaluating corrosivity of steel for upper deck of cargo oil tank of crude oil tanker

Abstract

A test system for evaluating a corrosivity of steel for an upper deck of a cargo oil tank of a crude oil tanker belongs to the field of moisture corrosion simulation tests and is composed of a cold-hot water circulation system, a temperature control system, a gas flow control system, an external data recording system, an experiment test system, a pipeline and gas buffer device and a water gas absorption device. The experiment test system comprises a temperature sensor, an experiment container, a container sealing cover with a water tank, a sample clamp, a constant temperature water bath and a sealing ring. A metal sample (7) and a test sample temperature sensor (8) are fastened on the container sealing cover (4) with the water tank (3) through the sample clamp (6), the test sample temperature sensor (8) can collect temperature signals of the metal sample (7) on the test sample clamp (6), the temperature signals are fed back to the temperature control system, then the temperature control system can send out signals to the cold-hot water circulation system to control temperature of water flowing into the container sealing cover, the effects of heating, insulating and cooling the test sample can be achieved, and experiment requirements can be met.

Description

[0001] technical field [0002] The invention belongs to the field of moisture corrosion simulation experiments. The invention provides a corrosion experiment system for placing steel samples in the corrosive gas environment of a crude oil tanker under the condition of alternating dry and wet conditions, and is suitable for environments containing various corrosive gases. Research on the moisture corrosion behavior and mechanism of the upper deck of cargo oil tanks of crude oil tankers, especially suitable for the evaluation of the corrosion performance of the upper deck of corrosion-resistant ship plate steel cargo oil tanks. [0003] Background technique [0004] Crude oil tankers are one of the main means of ocean transportation of crude oil. The failure of oil tankers due to the corrosion of cargo oil tanks of crude oil tankers not only causes huge economic losses, but also causes serious harm to the marine environment. The steel used for the upper deck and beam frame ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an experimental system for simulating the moisture corrosion environment on the upper deck of the cargo oil tank of a crude oil tanker, which solves the corrosion simulation experiment problem of steel in the upper deck environment of the cargo oil tank containing multiple corrosive gases, It can effectively conduct the corrosion performance evaluation experiment of steel in the corrosive environment of the upper deck of cargo oil tanks

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