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Desulfurization packed tower of marine diesel engine

A technology for marine diesel engines and packed towers, applied in the direction of using liquid separation agents, dispersed particle separation, chemical instruments and methods, etc., can solve problems such as equipment blockages in packed towers, and achieve the goals of preventing equipment blockages, reducing exhaust gas temperature, and reducing energy consumption Effect

Active Publication Date: 2014-03-19
HARBIN ENG UNIV
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Problems solved by technology

[0006] The object of the present invention is to provide a marine diesel engine desulfurization packed tower capable of making the absorption rate of SOx reach more than 98%, and simultaneously removing particulate matter and oil pollution in the exhaust gas of marine diesel engines, effectively solving the problem of packing tower equipment blockage

Method used

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  • Desulfurization packed tower of marine diesel engine

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Embodiment Construction

[0015] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0016] combine figure 1 , the present invention includes an air inlet 1, a washing liquid pre-spray device 2, a support grid 3, a packing layer 4, a high-temperature spray system 5, a demister 6, a cleaning system 7, a waste gas outlet 8, a waste liquid outlet 9, For the packed tower body 10, a washing liquid pre-spraying device 2 is added in the inlet duct 1 of the packed tower 10, and the inlet duct 1 of the packed tower 10 is arranged in a downward slope. The washing liquid pre-spraying device 2 adopts a nozzle type liquid sprayer. The nozzle-type liquid sprayer is installed on the upper end of the inlet channel, and the inlet channel 1 of the packed tower 10 adopts a downward inclined setting. The spraying direction of the nozzle-type liquid shower is along the direction of the flue, and after the sprayed washing liquid fully contacts with the exhaust gas fr...

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Abstract

The invention aims at providing a desulfurization packed tower of a marine diesel engine. The desulfurization packed tower comprises a packed tower body, wherein a waste gas outlet is formed in the upper part of the packed tower body, a waste liquid outlet is formed in the lower part of the packed tower body, a gas inlet passage connector is arranged at the lower end of the side wall of the packed tower body and is connected with a gas inlet passage, the gas inlet passage is arranged in a downwards-inclining manner, a cleaning solution pre-spraying device is arranged in the gas inlet passage and is positioned on one side of the inner wall above the gas inlet passage, the spraying direction of the cleaning solution pre-spraying device is a circulating direction of flue gas in a flue, a spraying catalytic apparatus is arranged at the position above the gas inlet passage connector in the packed tower body and comprises a high-temperature spraying system arranged upside and a packing layer arranged underside, and a demister and a cleaning system are sequentially arranged above the spraying catalytic apparatus. The desulfurization packed tower effectively reduces waste gas circulating resistance and improves SOx gas absorptivity to be up to more than 98%.

Description

technical field [0001] The invention relates to a diesel engine discharge device, in particular to a marine diesel engine discharge device. Background technique [0002] With the increasing development of the shipping industry, the exhaust gas produced by the combustion of marine diesel engines is more and more harmful to the environment, and SOx is one of the most harmful components to the environment. The SOx emitted by ships comes from the sulfur contained in fuel oil. For this reason, the International Maritime Organization (IMO) has imposed strict restrictions on the sulfur content of ship fuel. At present, there are many desulfurization methods, which are mainly divided into pre-combustion desulfurization, desulfurization during combustion and post-combustion desulfurization, among which post-combustion desulfurization method is the most economical and applicable. The exhaust gas scrubbing and desulfurization packed tower is the most commonly used method for post-com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/50B01D47/06
Inventor 周松李彩玲李若函朱元清刘佃涛王治宇张帮龙
Owner HARBIN ENG UNIV
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