Marine exhaust piping system

Abstract

The invention discloses a marine exhaust pipeline system, which includes an exhaust pipe, an exhaust baffle and an exhaust cover. The exhaust baffle includes a shell, a baffle body and a rotating mechanism, and the baffle body is installed on the casing. The rotating mechanism is located outside the shell, and the rotating mechanism drives the baffle body to rotate. The inside of the shell is provided with a first cooling water channel, and the shell is provided with a cooling water inlet communicating with the first cooling water channel. The cooling water outlet and the first water spray hole; the exhaust cover includes a cylinder body, a flip assembly, a driving mechanism and a flushing mechanism, the flip assembly is installed inside the cylinder and can rotate relative to it, the drive mechanism is connected with the flip assembly, and the flushing mechanism It includes a water curtain nozzle installed on one side of the exhaust port of the cylinder body, a flushing nozzle, and a pipe connected with the water curtain nozzle and the flushing nozzle. The marine exhaust pipeline system proposed by the invention can simultaneously realize the function of preventing seawater backflow, maintaining the integrity and beauty of the side hull structure and infrared suppression.

Description

technical field [0001] The technical field of the exhaust pipeline of the present invention, in particular, relates to a marine exhaust pipeline system. Background technique [0002] The exhaust temperature of diesel engines is generally relatively high, mostly in the range of 300°C to 500°C; under variable operating conditions such as start-up, acceleration, and load loading, a large amount of black smoke will be generated due to insufficient fuel combustion, which will affect the infrared radiation of the ship. Stealth and working environment can have a big impact. Therefore, it is necessary to install a seawater spraying device in the exhaust pipeline system to reduce the temperature and black concentration of the exhaust smoke, thereby improving the stealth and improving the living and working environment of the crew. [0003] Commonly used marine side exhaust is divided into two types: above water and underwater. The disadvantage of the water exhaust method is that th...

AI Technical Summary

Problems solved by technology

Due to the inability to withstand the high-temperature exhaust medium, it has not been used in the exhaust pipeline of the main engine

[0006] If the exhaust baffle and the spray cooling infrared suppression device are installed at the same time, it will lead to increased pipeline length, increased resistance, and increased purchase and maintenance costs

Especially in the narrow space of the cabin, it is difficult to arrange at the same time

[0007] To sum up, the traditional marine exhaust pipeline system cannot prevent seawater backflow, maintain the integrity and beauty of the side hull structure and infrared suppression functions at the same time, and has the disadvantages of large resistance, large volume, and high cost.

Images