| 摘要 |
PURPOSE: A large turbocharged two-stroke diesel engine with an exhaust gas purifying function is provided to make exhaust gas pass through an exhaust gas receiving part with minimum energy loss by installing inlets and an outlet in the exhaust gas receiving part along a tangential direction. CONSTITUTION: A large turbocharged two-stroke diesel engine with an exhaust gas purifying function comprises multiple serial cylinders, a turbo charger, and a selective catalytic reduction (SCR) reactor. The exhaust gas receiving part is connected to the cylinders by exhaust ducts (35). The exhaust ducts tangentially introduce exhaust gas into the exhaust gas receiving part and generates the vortex of the exhaust gas in the exhaust gas receiving part. The exhaust gas receiving part has an outlet. The exhaust gas receiving part is divided into a lower mixing section (48) and an upper exhausting section (49) by a device (42) in which multiple blades are radially installed on a center duct (47). While the exhaust gas passes the blades from the mixing section to the discharging section, the exhaust gas loses the vortex, but gains the pressure. The pressure gain makes the exhaust gas partially flow backward from the discharging section to the mixing section through the center duct. A reducing agent is introduced into the center duct. |
