2results about How to "Guaranteed denitrification efficiency" patented technology

This utility model relates to the technical field of SCR denitrification equipment, specifically a detachable catalyst SCR reactor, including a main component. The main component includes a shell, an air inlet and an air outlet located at both ends of the shell, and a cover hinged to the top side of the shell. A single-unit disassembly port is provided inside the cover, and a sealing disassembly assembly is installed inside the single-unit disassembly port. A catalyst assembly is installed inside the shell. This utility model, through its single-unit disassembly port and sliding catalyst layer, requires only 30-60 minutes for a single replacement, shortening the time by more than 80% compared to traditional overall disassembly. It also eliminates the need for a complete production line shutdown, requiring only a pause of the single catalyst unit. Furthermore, this utility model, through a double sealing ring and spring reset structure, ensures a reactor leakage rate of ≤0.5%, far superior to traditional equipment, guaranteeing denitrification efficiency. This utility model also eliminates the need for multiple operators for single-unit operation and avoids seal aging caused by repeated opening and closing of the cover.

The application discloses a thermal power plant SCR denitration system ammonia injection grid self-adaptive control method and system, including ammonia injection grid module, thermal impedance monitoring module, sound wave tomography module, differential pressure monitoring module, sound wave cleaning module and central control module, the central control module identifies the ash branch according to the temperature response curve collected by the thermal impedance monitoring module, according to the sound wave signal collected by the sound wave tomography module, the ammonia concentration distribution field and the temperature distribution field are reconstructed, the differential pressure signal collected by the differential pressure monitoring module is extracted spectrum characteristics, the influence of the ash branch on the injection uniformity or the catalyst layer stability is verified comprehensively, and the cleaning target branch is determined. The application realizes the on-line perception of the ammonia injection branch state, the visual monitoring of the injection uniformity, the early diagnosis of the catalyst layer flow instability, the thermal-acoustic resonance self-cleaning and the closed-loop intelligent control of the predictive maintenance, effectively improves the denitration efficiency, reduces the ammonia escape and prolongs the equipment life.