Multi-stage sulfuric acid trioxide mist condensation drop simulation device capable of being used for external measurement equipment

Abstract

The invention discloses a multistage sulfuric acid trioxide mist condensation and drop simulation device for external measuring equipment, which comprises a filling unit, a mixing heating unit, a vacuumizing unit and an auxiliary equipment unit, and is suitable for accurately simulating the condensation and drop process of acid mist in a laboratory through the device, so that the condensation and drop process of the acid mist can be accurately simulated in dew point corrosion. According to the device and the method, the effect of an acid mist condensation and drop process on corrosion reaction can be fully understood, particularly the effect of different acid atmosphere media on forming temperature, forming form and forming concentration of acid mist when the acid mist is formed, and through mutual cooperation of the filling unit, the mixing and heating unit, the vacuumizing unit and the auxiliary equipment unit, the acid mist condensation and drop effect can be fully understood. And the uniformity of the environment temperature for placing the test equipment is ensured so as to better adapt to external equipment.

Description

technical field [0001] The invention belongs to the technical field of industrial equipment simulation testing, in particular to a multi-stage sulfuric acid trioxide mist condensation drop simulation device which can be used for external measuring equipment. Background technique [0002] For industrial process equipment such as boilers and pressure vessels, when the ambient temperature drops sharply under working conditions, the medium will often change from the gas phase to the liquid phase. At this time, the corrosive components of the medium will be enriched in the liquid phase with the condensation It is precipitated and dissolved in the liquid-phase water environment to the greatest extent, and deposited in the medium circuit of the working condition, causing serious corrosion to the equipment, especially in recent years, due to the trend of inferior raw materials, the harshness of the operating environment of some pressure-bearing equipment has increased ; In particula...

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Problems solved by technology

[0004] One is that it is difficult to accurately simulate the condensation process of acid mist in the laboratory. In dew point corrosion, the condensation process of acid mist plays the most important role in the occurrence of corrosion reactions. The formation temperature, form and concentration of acid mist will have different effects;

[0005] Second, in the actual working process, the temperature is a process of continuous decline, which is actually a certain point process. However, in the laboratory environment, it is difficult to ensure the uniformity of the ambient temperature where the test equipment is placed due to the need for external equipment measurement. Better adapt to external devices

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