Integrated marine diesel engine exhaust-gas treatment apparatus

Abstract

The invention relates to an integrated marine diesel engine exhaust-gas treatment apparatus, which comprises a box. A SCR denitration reactor, a urea solution conveying device, an alkali lye conveying device, a seawater storage groove and a bubble column are arranged inside the box. The SCR denitration reactor is arranged at the upper part of the left side inside the box. The urea solution conveying device and the bubble column are both disposed at the right side of the SCR denitration reactor. The bubble column is mounted in front of the urea solution conveying device. The seawater storage groove is arranged at the bottom of the box and positioned right below the bubble column. An atomizing nozzle and a catalyst module are arranged inside the SCR denitration reactor. A demister is mounted inside the bubble column. The alkali lye conveying device is communicated with the bubble column. By the design of the integrated structure, all equipment is arranged inside the box. The structural design is ingenious, and the structure is closely linked and is simple. Thus, floor area is greatly reduced, and floor space is saved. The integrated marine diesel engine exhaust-gas treatment apparatus is applicable to ships with small space.

Description

technical field [0001] The invention belongs to exhaust gas treatment devices, in particular to an integrated exhaust gas treatment device for marine diesel engines. Background technique [0002] According to statistics, the annual emission of SOx from ship exhaust gas accounts for about 4% of the world's total emissions, and the annual emission of NOx accounts for about 7% of the world's total emissions. In ports, straits and some sea areas with dense routes and large ship traffic, it has become the main source of pollution in this area. According to the relevant data of the International Maritime Organization (IMO), the environmental pollution caused by exhaust emissions from ships is becoming more and more serious. Among them, SOx is mainly a sulfur-containing combustion product in fuel, which is discharged into the atmosphere in the form of exhaust gas, especially SO 2 It is easy to oxidize and form acid rain to endanger human beings; NOx includes NO, NO 2 , N 2 o 4 ...

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Problems solved by technology

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an integrated marine diesel engine exhaust gas treatment device. The denitrification, desulfurization and dust removal equipment are all arranged in a box, which greatly reduces the occupied area, so as to solve the problem that the exhaust gas cannot be arranged due to the narrow space of the ship. Dealing with device issues

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