Marine diesel engine waste gas washing water treatment device utilizing ship waste heat

Abstract

The invention discloses a marine diesel engine waste gas washing water treatment device utilizing ship waste heat. The marine diesel engine waste gas washing water treatment device comprises a flue gas washing module and a waste water treatment recycling module; the flue gas washing module comprises a heat exchange unit, a washing tower, a medicine dispensing box, a metering pump, a chimney, a liquid-gas separation device, a fan, a flue gas heat exchanger, a two-stage filtering sedimentation cabinet, an electric heater and a sewage pump; and the wastewater treatment recycling module comprisesa steam ejector, an injection pump, a flash tank, a condenser, a liquid storage tank and a centrifugal pump a. The marine diesel engine waste gas washing water is treated by utilizing the ship waste heat, so that the energy consumption is reduced, and the consumption of fresh water is reduced; no wastewater is discharged in the treatment process, and no pollution is caused to the ocean; washing water can be recycled after being distilled and purified, components of the washing liquid are not affected, and waste gas treatment of the marine diesel engine cannot be affected; and according to theinvention, the formation of white fog is reduced.

Description

technical field [0001] The invention relates to a marine diesel engine exhaust gas washing water treatment device, in particular to a marine diesel engine exhaust gas washing water treatment device utilizing ship waste heat. Background technique [0002] Exhaust gas pollutants from marine diesel engines have brought great harm to human living environment and health. As people pay more attention to environmental protection, environmental protection regulations are becoming increasingly stringent. The current ship exhaust gas treatment system mainly includes two types, namely dry treatment system and wet scrubbing system. Wet scrubbing system is widely used in ship exhaust gas treatment because of its good purification effect. The wet scrubbing system is divided into three different modes: the first is the seawater scrubbing exhaust gas-open mode, which uses the alkalinity of seawater to absorb SOx in the exhaust gas, and the washed wastewater is discharged into the sea afte...

AI Technical Summary

Problems solved by technology

Although the washing water has been treated, there are still some particles and pollutants that cannot be removed, and the residual chemicals in the washing water may pose a hazard to the water environment

In addition, when the high-temperature flue gas enters the washing device, a large amount of white mist (containing acidic droplets) will be generated, causing secondary pollution

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