Turbine exhaust gas treatment device

Abstract

The invention discloses a turbine exhaust gas treatment device. The device comprises an exhaust gas waste heat recovery device and a spray tower, exhaust gas is treated by the exhaust gas waste heat recovery device and the spray tower in sequence and then is discharged, and a cooling area and a spray area are arranged in the spray tower sequentially along the forward motion direction of the exhaust gas. According to the turbine exhaust gas treatment device, the turbine exhaust gas firstly passes through the exhaust gas waste heat recovery device before entering the spray tower to be sprayed byusing alkaline liquor; on one hand, the waste heat of the turbine exhaust gas can be effectively used, thereby increasing the utilization efficiency of fuel oil; on the other hand, the temperature ofthe exhaust gas can be reduced, the temperature rising of spraying a scrubbing solution is reduced, and the desulfurization efficiency is improved; the cooling area in the spray tower can further reduce the temperature of the exhaust gas, the desulfurization efficiency is improved to the maximum extent, and the whole desulfurization capability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a turbine exhaust gas treatment device. Background technique [0002] With the development of the international shipping industry and ocean-going shipping, exhaust emissions from ships have become the main source of air pollution in coastal areas, especially in ports. The fuel used in marine power plants is heavy oil with high viscosity, high sulfur content, and high carbon residue. Among the gaseous emissions produced by it, SOx occupies a large proportion, and it is easy to combine with water in the air to form acid rain and acid rain. Fog and chemical smog are one of the main acid gases that cause air pollution, causing great harm to the ecological environment of the earth and human health. [0003] The selection of low-sulfur fuel is the fundamental measure to solve the excessive SOx content in ship exhaust from the source. However, since low-sulfur fuel oil needs to go throug...

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Problems solved by technology

[0003] The selection of low-sulfur fuel is the fundamental measure to solve the excessive SOx content in ship exhaust from the source. However, since low-sulfur fuel oil needs to go through an additional desulfurization process in the refining process, the price is much higher than traditional heavy oil, which greatly increases the operating cost of ships.

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