Supercritical carbo dioxide corrosion experimental apparatus

Abstract

A supercritical carbo dioxide corrosion experimental apparatus comprises a carbon dioxide gas source, a preheating furnace and a corrosion reactor, an outlet of the carbon dioxide gas source is communicated with an inlet of the preheating furnace via a boost pump, an outlet of the preheating furnace is communicated with the corrosion reactor that is used for holding a sample, and an outlet of the corrosion reactor is connected with a cooling system. Through the carbon dioxide gas source, the boost pump, the corrosion reactor and the cooling system, the carbon dioxide gas source is boosted by the boost pump before entering the corrosion reactor; a condensing system is arranged at the rear of the corrosion reactor, gas condensing speed is increased, and system stability and safety are improved; the supercritical carbo dioxide corrosion experimental apparatus is simple in structure, and can provide simple and effective testing for corrosive action of a test material under high-temperature supercritical carbon dioxide (S-CO2).

Description

technical field [0001] The invention relates to a material corrosion experiment device, in particular to a supercritical carbon dioxide corrosion experiment device. Background technique [0002] Supercritical carbon dioxide (S-CO 2 ) Brayton cycle uses supercritical carbon dioxide (critical pressure 7.38MPa, critical temperature 30.98°C) as the working medium, and adopts the principle of Brayton cycle to realize energy conversion. Compared with the steam power cycle currently used on a large scale, S-CO 2 The Brayton cycle has higher energy conversion efficiency at high temperature (generally higher than 400°C), and the volume of the turbine system and cooling equipment is only one-tenth of the volume of the corresponding equipment of the steam system; compared with the conventional gas Brayton cycle, The characteristic that the parameters of the compression process are located near the critical point of the working medium makes the compression power consumption significan...

AI Technical Summary

Problems solved by technology

However, considering the power generation efficiency of the power plant, it is difficult to carry out actual measurement experiments in the power plant. Therefore, it is necessary to develop a laboratory test equipment that can effectively simulate the operating conditions of the boiler

Currently related alloys in S-CO 2 There are relatively few research reports on corrosion behavior in the environment, and the corrosion experimental equipment used does not have high-pressure conditions, and its experimental parameters are far lower than the target parameters (750°C, 30MPa) of the supercritical carbon dioxide cycle thermal power generation system, and cannot simulate the dynamic corrosion of high temperature and high pressure. Experimental requirements

Images