Spraying system

Abstract

The utility model discloses a spraying system which is arranged in a wet-method flue-gas desulfurization and absorption tower. The spraying system comprises a plurality of layers of spraying layers, wherein, main spraying pipes, branch spraying pipes and a nozzle are arranged in the spraying layers, at least two parallel main spraying pipes are arranged on each spraying layer and two ends of the main spraying pipe are supported on the tower wall of the absorption tower. For the absorption tower with large cross section, after at least two main spraying pipes are adopted, support beams of the branch spraying pipes can be saved so as to reduce the erosion to the support beam; by adopting the solid and tapered nozzle that is arranged near the periphery of the tower wall of the absorption tower, the wall-flow phenomenon and the spraying amount of the slurry can be reduced and the spraying effect of the slurry can be ensured to be more effective.

Description

technical field [0001] The invention relates to a spray system, which is suitable for a wet flue gas desulfurization absorption tower. Background technique [0002] The vast majority of power plants and industrial boilers in my country usually use fossil fuels such as coal and oil. Due to the unstable source, unstable quality and high sulfur content of fossil fuels, a large amount of harmful substances such as sulfur dioxide will be produced during the combustion process. In order to remove sulfur dioxide in the flue gas, the limestone-gypsum wet method is widely used in flue gas desulfurization in large power plants. The absorption tower is the key equipment for wet flue gas desulfurization, and one of the most important equipment in the absorption tower is the spray system. [0003] The traditional spraying system is generally welded on the inner wall of the absorption tower with a large cross-section, and is mainly composed of expensive alloy steel spraying pipes. The all...

AI Technical Summary

Problems solved by technology

However, after adding support beams, it will not only affect the smoke distribution and spray effect, but also increase the smoke resistance, and at the same time, it is easy to cause scour to the support beams

[0004] The nozzles of the spraying layer of the traditional spraying system are all hollow conical, which is easy to generate wall flow on the wall of the absorption tower, causing a short circuit of the flue gas and weakening the spraying effect

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