Online quick-release easy-to-clean ammonia spraying device

Abstract

The invention relates to an on-line quick-release easy-to-clean ammonia spraying device which comprises an ammonia spraying device body, an ammonia gas / ammonia vapor equipartition device, a drainage device, an ammonia spraying pipe, a regulating valve, a regulating on-off valve and a quick-release flange, a plurality of ammonia spraying pipes are arranged on the cross section of the ammonia spraying device body in parallel; one end of the ammonia spraying pipe extends out of the ammonia spraying device body; the ammonia gas / ammonia vapor equalizer is lower than the ammonia spraying pipes, thetop of the ammonia gas / ammonia vapor equalizer is provided with a plurality of branch pipes in one-to-one correspondence with the ammonia spraying pipes, the branch pipes are provided with adjusting opening and closing valves, and the extending sections of the ammonia spraying pipes are connected with the branch pipes through quick-release flanges; an ammonia gas / ammonia gas inlet is formed in thebottom of the ammonia gas / ammonia gas equalizer and is connected with an ammonia gas / ammonia gas conveying pipeline; and a regulating valve and a drainage device are arranged on the ammonia gas / ammonia vapor conveying pipeline. According to the device, the ammonia spraying uniformity can be optimized, the operation is more convenient, the blockage factor of the ammonia spraying pipe can be reduced, and more importantly, the online quick disassembly and cleaning of the ammonia spraying device can be realized.

Description

technical field [0001] The invention relates to the technical field of SCR flue gas denitrification, in particular to an online quick-disassembly and easy-cleaning ammonia injection device. Background technique [0002] Selective catalytic reduction (SCR) denitrification technology is widely used in coal-fired power plant flue gas denitrification, coke oven flue gas denitrification, sintering flue gas denitration and other occasions due to its high denitrification efficiency and stable and reliable operation. The denitrification efficiency, the amount of ammonia injection and the ammonia escape rate are the important basis for measuring the operation status of the denitrification system. Among them, the reliability of the ammonia spray pipe during the operation of the denitrification system directly affects the above performance indicators. Therefore, domestic and foreign manufacturers and design units involved in denitrification systems have conducted in-depth research and...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above that whether it is optimizing the flow field of the denitrification device or improving the ammonia injection device, it is only to reduce or reduce the clogging factor as much as possible, and the clogging problem is inevitable

Once a blockage occurs, it needs to be replaced or cleaned by stopping the wind, and the stability and reliability of the denitrification system will be greatly reduced; even some environmental protection special discharge areas need to take measures to shut down and reduce production for replacement or cleaning, which will bring great benefits to enterprises. Economic losses

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