Rinsing water treatment system of desulfurization tower

Abstract

The invention discloses a rinsing water treatment system of a desulfurization tower. The desulfurization tower comprises a demister and demister rinsing layers arranged at the upper side and the lowerside of the demister, and is characterized in that the rinsing water treatment system of the desulfurization tower comprises a sulfuric acid supply unit, a concentrated water reverse osmosis concentrated water supply unit, a reaction unit communicating between the sulfuric acid supply unit and the concentrated water reverse osmosis concentrated water supply unit, and a delivery unit communicatingbetween the reaction unit and the demister rinsing layers; the sulfuric acid supplied by the sulfuric acid supply unit and the concentrated water reverse osmosis concentrated water supplied by the concentrated water reverse osmosis concentrated water supply unit are mixed at the reaction unit and sufficiently react to form the rinsing water; the rinsing water is delivered to the demister rinsinglayers through the delivery unit to rinse the demister. According to the rinsing water treatment system of the desulfurization tower, the scaling problem caused by rinsing the wet-method desulfurization system by utilizing the concentrated water reverse osmosis concentrated water can be effectively avoided.

Description

technical field [0001] The invention relates to the field of concentrated water reverse osmosis concentrated water reuse, in particular to a flushing water treatment system for a desulfurization tower. Background technique [0002] The power plant is equipped with a chemical desalination treatment system. In the chemical desalination treatment system, surface water enters the reverse osmosis device through flocculation, sedimentation and filtration processes. The reverse osmosis membrane only allows water to pass through and prevents the passage of dissolved solids (salt). The passing water is called fresh water, and the fresh water enters the ion exchange system to produce qualified desalinated water, and the dissolved solids (salt) that prevent passing through are trapped on the other side of the membrane, and the water on this side is called concentrated water. Concentrated water is 25% of the total water inflow of reverse osmosis. In order to save water and reduce emissi...

AI Technical Summary

Problems solved by technology

[0003] Concentrated water reverse osmosis Concentrated water is compared with raw water, its conductivity, alkalinity, hardness and other main components are basically concentrated eight times, and it is a substance that is easy to scale with carbonate and bicarbonate. If the concentrated water is directly used for reverse osmosis concentrated water Flushing the wet desulfurization system, in the desulfurization system due to temperature increase and evaporation concentration, will cause the wet desulfurization system, especially the demister, to form carbonate scale and block, seriously affecting the safety and stable operation of the desulfurization system equipment

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