Marine exhaust pipeline system

Abstract

The invention discloses a marine exhaust pipeline system which comprises an exhaust pipe, an exhaust baffle and an exhaust sealing cover. The exhaust baffle comprises a shell, a baffle body and a rotating mechanism, the baffle body is installed inside the shell and is rotatably connected with the shell, the rotating mechanism is positioned outside the shell, the rotating mechanism drives the baffle body to rotate, a first cooling water channel is arranged inside the shell, and a cooling water inlet, a cooling water outlet and a first water spraying hole which communicate with the first coolingwater channel are formed in the shell; the exhaust sealing cover comprises a cylinder body, a flip component, a driving mechanism and a flushing mechanism, wherein the flip component is arranged in the cylinder body and can rotate relative to the cylinder body, the driving mechanism is connected with the flip component, and the flushing mechanism comprises a water curtain spray head arranged on one side of an exhaust port of the cylinder body, a flushing spray head and a pipeline connected with the water curtain spray head and the flushing spray head. The marine exhaust pipeline system can simultaneously realize the functions of preventing seawater backflow, keeping the structure of the side ship body complete and attractive and keeping 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.

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