Novel anti-corrosion noise-reduction chimney for ship

Abstract

The invention discloses a novel anti-corrosion noise-reduction chimney for a ship. The novel anti-corrosion noise-reduction chimney comprises one chimney body used for exhausting waste gas, a conversion device arranged at the central axis position of the chimney body and used for converting kinetic energy of the waste gas into electric energy, an internal cooling device arranged on the inner wallof the chimney body and used for reducing internal temperature and smoke dust of the chimney body, a silencing device used for reducing noise of the chimney body, an external cooling device arranged on the outer wall of the chimney body, a heat insulation layer arranged on the surface of the external cooling device, a circulating and purifying device used for purifying and recycling cooling liquid, and a controller. According to the novel anti-corrosion noise-reduction chimney for the ship, the internal temperature and the external temperature of the chimney body are effectively reduced through multi-stage cooling, and the temperature of the chimney body is visually controlled and adjusted in real time through a detection control system, so that the problem of high-temperature corrosion iseffectively solved; and by arranging the silencing device, the exhaust noise of the chimney body is reduced, energy of the exhausted flue gas is fully recycled, and harmful substances and the smoke dust in waste gas can be effectively removed by changing a cooling liquid medium.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a novel anti-corrosion and noise-reducing chimney for ships. Background technique [0002] With the development of the country's economy, ships have become one of the main means of transportation by virtue of the advantages of large capacity, low freight and international transportation. The flue gas temperature is high and the pressure is high, the exhaust temperature of the main engine of the ship and the diesel engine of the power station is often as high as 500 ℃, and the surface of the exhaust pipe is easily corroded and damaged in the harsh environment of high temperature oxidation and seawater salt spray erosion, reducing the service life; In addition to high temperature and high pressure, the exhaust process is accompanied by huge noise, which has a huge impact on the health of the crew and has become the main source of ship noise. In order to solve the above problems, CN ...

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Problems solved by technology

[0003] The above-mentioned invention can reduce the temperature of the outer surface of the chimney and reduce the amount of smoke and dust, but there are still the following problems: 1. The cooling effect is limited only through the thermal fluid circulation, the temperature drop cannot be accurately controlled and adjusted, and the cooling effect is not obvious; 2. Due to the cooling The effect is not obvious and cannot effectively solve the problem of high-temperature corrosion of the chimney; 3. The problem of exhaust noise cannot be effectively solved; 4. The energy recovery rate is not high;

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