Device for testing and analyzing warehouse separated type denitrated catalyzer

Abstract

The invention discloses a split testing and analyzing device for a denitration catalyst. A split testing reactor (3) communicates a smoke mixing assembly (2) and a smoke cleaning assembly (4); the inner cavity of the split testing reactor (3) are divided into four cavities (3-2) by partition boards (3-1); in the middle of each cavity (3-2), a catalyst basket (3-3) is placed; the catalyst basket (3-3) comprises a main pipe and a sieve mesh; on the catalyst basket (3-3), a hanging hole is provided; between the upper and the lower opening of the cavity (3-2) and the catalyst basket, a sampling port is provided for measuring temperature and pressure for each cavity (3-2). The invention can concurrently carry out performance comparison and test on denitration catalysts of different specifications and types under the same smoke conditions, saves greatly the analysis and test time, and increases the comparability.

Description

technical field [0001] The invention relates to a sampling, analysis and detection device for a SCR denitration catalyst in a power plant, in particular to a bin-type denitration catalyst testing and analysis device capable of comparing the performance of catalysts of different types and specifications under the same flue gas condition. Background technique [0002] The denitrification catalyst is the core of SCR denitrification in power plants, and its performance has a decisive influence on the performance of the denitrification project. Unreasonable selection of catalyst will not only cause the denitration rate and other indicators of denitrification to fail to reach the guaranteed value, but also cause blockage of the catalyst and increase in pressure drop, resulting in boiler operation failure. In addition, if the catalyst is not selected properly, it may also cause catalyst poisoning , Accelerated wear and aging, the expected service life cannot be reached, and the cat...

AI Technical Summary

Problems solved by technology

[0003] At present, only when the boiler is shut down, the catalyst for denitrification is taken out from the catalyst layer in the boiler and returned to the catalyst manufacturer or sent to the laboratory for analysis to observe the mechanical strength, service life and poisoning of the catalyst. According to the activity test, pressure drop loss, mechanical Strength, poisoning resistance, service life and flue gas adaptability to make a comprehensive evaluation of the time interval is long, and it is inconvenient to replace, so there is no timely judgment on the poisoning situation and cause of the denitrification catalyst, especially for the suitability and suitability of various denitrification catalysts. For the test and comparison of good conditions, each catalyst must be used in the denitrification of the flue gas of the same boiler under the same environmental conditions, and the trial period is the same, and then each catalyst is taken out and returned to the catalyst manufacturer or sent to the experiment. It takes a lot of time to conduct comprehensive analysis and comparison in the laboratory, and the environment of each catalyst will change due to changes in various parameters of the flue gas discharged from the boiler, resulting in poor comparability of test results.

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