Supergravity type diesel engine tail gas collaborative purification device

Abstract

The invention discloses a supergravity type diesel engine tail gas collaborative purification device. The device adopts a rotating packed bed to enhance the gas-liquid mixing capacity and strengthen gas-liquid mass transfer, can achieve collaborative purification of various pollutants and is high in tail gas purification efficiency. A rotating shaft is a partially hollow shaft, a nozzle is installed in the hollow part of the shaft, and an absorption liquid enters the nozzle from the hollow part. The absorption liquid is sprayed out from nozzle spray holes through the rotation of the shaft to realize primary atomization, and then enters the rotary packed bed to form a supergravity state, so that secondary atomization is realized, and the absorption liquid is mixed with tail gas. A static liquid supply pipe and a rotating hollow shaft in the device are in contact connection through a rubber cover bearing, and the outer end face of the rotating shaft is fixed through a rubber cover and ascrew. A baffle is arranged on the right side of the rotor and can prolong the residence time of gas in a reactor. The purification device is provided with a damping device, and a tail gas inlet is connected by adopting a flexible body, so that the applicability of the tail gas purification device on a ship is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a supergravity diesel engine tail gas cooperative purification device. Background technique [0002] In recent years, with the development and prosperity of the international shipping industry, exhaust emissions from ships have become the main source of pollution on beaches and ports. According to the statistics of the International Maritime Organization (IMO), diesel engines operating around the world emit about 10 million tons of nitrogen oxides and about 8.5 million tons of sulfur compounds every year, especially in ports, straits and waters where there are dense passages and large ships berthed. Marine diesel engines Exhaust emissions are the main source of pollution in the area. As a major transportation country, China's diesel exhaust emissions in the Yangtze River Delta and Pearl River Delta account for about 20% of global urban pollution sour...

AI Technical Summary

Problems solved by technology

However, when using currently commonly used methods such as Selective Catalytic Reduction (SCR) to purify exhaust gas, there are usually disadvantages such as replacement of filter materials, easy failure of catalysts, and high cost. On harsh, space-limited sports carriers

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