Multifunctional apparatus for SO3 removal test of smoke, and working method thereof

Abstract

The invention discloses a multifunctional apparatus for SO3 removal test of smoke. The apparatus comprises a boiler and a SO3 generator, one side of the boiler is fixedly connected with a smoke outletpipeline, one end of the smoke outlet pipeline is fixedly connected with a coal economizer, one side of the coal economizer is fixedly connected with a first pipeline, one end of the first pipeline is fixedly connected with an SCR denitration device, one side of the SCR denitration device is fixedly connected with a second pipeline, one side of the second pipeline is fixedly connected with an airpreheater, and one side of the air preheater is fixedly connected with a third pipeline. The multifunctional apparatus for SO3 removal test of smoke can perform injection and flow field analysis on an adsorbent, and meets the amplification criteria of the key apparatuses for removing SO3 from the smoke. The smoke to be treated is the actual operation smoke of a power plant, and the components ofthe smoke are complicated, so the study result of the apparatus of the invention is more true than that of laboratories in an ideal state, and is in line with the actual situation, and the apparatus provides basic data for industrial amplification in the future, and accelerate the industrial demonstration and promotion of the SO3 removal of the smoke.

Description

technical field [0001] The present invention relates to SO 3 Removal test device, specifically a multifunctional flue gas SO 3 Remove the test device. Background technique [0002] Excess ammonia slip and SO in flue gas in SCR denitrification unit of coal-fired power plant 3 The reaction produces ammonium bisulfate, which leads to a series of problems such as blockage of the air preheater, decrease in dust removal efficiency, and damage to the catalyst. In severe cases, it affects the operation of the unit and reduces the economy and safety of the system. 3 Analysis and removal experimental research, but based on laboratory analysis conditions, the method of gas distribution is often used to simulate flue gas, but the real flue gas composition cannot be achieved, and because SO in flue gas 3 The content is very small, and the use of alkaline substances to achieve SO 3 Insufficient research on the reaction mechanism, influencing factors, and flow field distribution of the...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a multifunctional flue gas SO 3 The removal test device and its working method solve the problem of existing SO 3 Due to the difference between the simulated flue gas and the real flue gas in the analysis and removal experimental research, the removal of SO by alkaline substances 3 Insufficient research on the reaction mechanism, influencing factors, and flow field distribution of the adsorbent after spraying into the flue, thus limiting the SO 3 Problems in industrial demonstration, popularization and application of removal

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