Combined marine pollution-preventing system

Abstract

The invention discloses a combined marine pollution-preventing system, which comprises an electrolytic ballast water treatment system and an alkali water flue gas desulfurization system, an alkali water outlet of an electrolysis bath of the electrolytic ballast water treatment system is connected with a storage tank of the alkali water flue gas desulfurization system through a tube, and thereby the combined pollution-preventing system which can simultaneously treat the ballast water of a ship and desulfurize the tail gas of the diesel engine of the ship is formed. Since the invention sufficiently utilizes the high-concentration salt water produced by a seawater distiller and the alkali water produced by the electrolytic ballast water treatment system, the chlorine yield of the electrolytic ballast water treatment system and the absorptivity of the alkali water flue gas desulfurization system are increased. Under the premise of ensuring the operation of the whole system, the usage of seawater is greatly reduced, consequently, the needed pump power is reduced, electric energy is saved, and the operation cost of the ship is reduced. The desulfurization rate can reach more than 95 percent, the equipment size can be reduced, and thereby the space of the ship is saved.

Description

technical field The invention relates to the technical field of ship anti-pollution, in particular to a combined anti-pollution system for ship ballast water treatment and ship diesel engine tail gas desulfurization. Background technique According to IMO data, ships emit SO x Reached 6.34 million tons, accounting for about 4% of the world's total emissions. Air pollution from ships has reached a level that cannot be ignored, especially in ports, straits and some sea areas with dense routes, and ship exhaust has even become the main source of pollution in this area. The 1997 International Conference on the Prevention of Air Pollution adopted the 1997 Protocol of the MARPOL Convention and 8 resolutions. The Protocol incorporated the "Rules for the Prevention of Air Pollution Caused by Ships" and made it Annex VI of the Convention. The supplementary regulations came into force in our country on August 23, 2006. MARPOL Annex VI for SO in Ship Exhaust Gas x Emission levels ar...

AI Technical Summary

Problems solved by technology

1. Use of low-sulfur fuel: Due to the limitation of earth resources, the storage capacity of low-sulfur fuel cannot meet the needs of shipping;

2. Fuel oil desulfurization: Due to the complex process and high operating cost, this method greatly increases the operating cost of the ship;

Ho

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