HIGH-PRESSURE SCR SYSTEM WITH VENTING AND PRESSURE-STABILIZING FOR MARINE DIESEL ENGINE AND SHIP HAVING THE SAME

A high-pressure SCR system with venting and pressure-stabilizing for marine diesel engine, comprising an SCR reactor (10), a gas intake pipeline (20), an exhaust pipeline (30), a bypass pipeline (40), a pneumatic pipeline (50), a first auxiliary pipeline (70), and a second auxiliary pipeline (80). When the exhaust gas of the diesel engine needs to undergo denitrification treatment, the exhaust gas of the diesel engine can enter from a flue gas inlet, sequentially pass through the gas intake pipeline (20), the SCR reactor (10), and the exhaust pipeline (30), and be discharged from a flue gas outlet, the exhaust gas undergoing denitrification treatment in the SCR reactor (10). When the exhaust gas of the diesel engine does not need to undergo denitrification treatment, the exhaust gas can enter the bypass pipeline (40) from the flue gas inlet and be discharged from the flue gas outlet, the exhaust gas in the SCR reactor (10) and exhaust pipeline being pushed by compressed air entering from the first auxiliary pipeline (70) and the second auxiliary pipeline (80) to be discharged from the flue gas outlet. The present system eliminates the original inlet air pipeline, simplifying the structure of the entire system so that the entire system is more compact, ensuring thorough ventilation and reducing the amount of air consumption. Also provided is a ship.