Green and efficient ship exhaust gas multi-pollutant purification system and intelligent regulation and control method

Abstract

The invention relates to a green and efficient ship exhaust gas multi-pollutant removal and purification system and an intelligent regulation and control method, and the system comprises a device part, a sensing part, a control part and an optimization part. The device part comprises a marine diesel engine, a multi-pollutant detergent preparation device, a multi-pollutant enhanced removal device, a multi-pollutant washing residual liquid integrated purification device and a waste gas exhaust barrel. The sensing part is used for acquiring, preprocessing, integrating, storing and issuing information; the control part is used for adjusting the key manipulated variable by setting real-time operation conditions and optimization parameters, and ensuring that the system stably reaches the standard and is subjected to optimization adjustment; the optimization part comprises a calculation platform constructed by a pollutant generation concentration and outlet pollutant concentration prediction model, and realizes intelligent switching of desulfurization operation modes under frequent change of a navigation environment and frequent fluctuation of a load, and accurate adjustment and optimization regulation and control of system operation key parameters. Energy is saved, consumption is reduced, emission stability is improved, and environmental pollutants and resource consumption are reduced.

Description

technical field [0001] The invention belongs to the technical field of ships, and in particular relates to a green and high-efficiency ship waste gas multi-pollutant purification system and an intelligent control method. Background technique [0002] With the gradual growth of international trade, the shipping industry has also developed rapidly. But at the same time, the problem of environmental pollution caused by exhaust gas from ships burning petroleum products is also becoming more and more serious. Large ocean-going ships mostly use heavy oil as fuel, some of which have a sulfur content of more than 3.5%. The sulfur oxides (SOx) in the exhaust gas have a great impact on the environment. In order to reduce the environmental pollution caused by ships, the 58th meeting of the Marine Environmental Protection Committee (MEPC) passed the amendment to Annex VI of the MARPOL73 / 78 Convention on the reduction of sulfur oxide emissions from ships, which clearly requires that: fr...

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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing technology, the present invention provides a green, high-efficiency ship exhaust multi-pollutant purification system and an intelligent control method, which can solve the problem of SO caused by the burning of inferior oil products in complex navigation environments at low cost and high efficiency. 2 The problem of excessive emissions improves the adaptability of ships to deal with complex working conditions; at the same time, intelligent control methods are used to achieve intelligent switching between open-loop and closed-loop desulfurization methods, reducing SO 2 Discharge fluctuations, save material consumption such as lye and fresh water and power consumption, and further reduce the operating intensity of the crew; at the same time, combined with the limited installation space, limited response time and small amount of treated water in the ship environment, a green energy-saving, high-efficiency and compact design has been developed. The advanced ship desulfurization washing water post-treatment system solves the problems of limited post-treatment space and high discharge requirements for ship desulfurization wastewater

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