Thermal power plant boiler sound wave soot blowing method and soot blowing system

Abstract

The invention discloses a thermal power plant boiler sound wave soot blowing method and a soot blowing system. The thermal power plant boiler sound wave soot blowing method comprises the steps of arranging sound wave soot blowers: arranging the multiple sound wave soot blowers on the left side wall of a tail flue, the right side wall of the tail flue, and the rear wall of the tail flue correspondingly; sequencing the sound wave soot blowers: sequencing the sound wave soot blowers on the left side wall of the tail flue and the right side wall of the tail flue in a sequential intersecting mode from front to back; sequencing the sound wave soot blowers on the rear wall of the tail flue in a sequential intersecting mode from two sides to the middle; conducting soot blowing control: setting a soot blowing mode and soot blowing control parameters; and according to the soot blowing mode and the soot blowing control parameters, controlling the multiple sound wave soot blowers to blow soot according to the number sequence of the sound wave soot blowers. According to the thermal power plant boiler sound wave soot blowing method and the soot blowing system provided by the embodiment of the invention, the steps are simple, the rationality of arrangement of the sound wave soot blowers is improved, and the soot blowing effect of the sound wave soot blowers on the whole tail flue is improved; and the soot blowing mode is selected and the soot blowing control parameters are modified to further optimize the cleaning capacity for soot deposition under different conditions.

Description

technical field [0001] The invention belongs to the field of thermal power generation, and in particular relates to a soot blowing method and a soot blowing system for boilers in thermal power plants. Background technique [0002] In thermal power generation, boilers are unavoidable equipment that needs to be used. However, after the boiler generates electricity for a long time, the tail flue will accumulate an extremely thick ash layer, which will cause a series of problems. First of all, at high temperature, the ash is in a semi-molten state. After a long time, the ash accumulation will be like adding a layer of insulating cement to the pipe, which will affect the heat absorption, and may even cause the pipe to creep and burst. Secondly, the effective output of the induced draft fan is reduced after the flue accumulates dust, which reduces the economic benefit of the boiler. Finally, the low-temperature corrosion caused by long-term dust accumulation in the flue gas chan...

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a sonic soot blowing method for boilers in thermal power plants. The sonic soot blowing method for boilers in thermal power plants has simple steps and solves the problem of poor soot blowing effects for boilers in thermal power plants.

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