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Marine diesel engine tail gas SCR denitration system

A marine diesel engine and denitrification technology, applied in mechanical equipment, exhaust devices, engine components, etc., can solve problems such as high exhaust temperature, polluting gas, and inability to cool down

Inactive Publication Date: 2020-09-08
JIANGSU FENGYE TECH ENVIRONMENTAL PROTECTION GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the tail gas purification treatment disclosed in the above-mentioned patents and prior art, especially the SCR denitrification treatment device and process of diesel engine exhaust gas, has a low denitrification rate. gas and other technical defects

Method used

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  • Marine diesel engine tail gas SCR denitration system
  • Marine diesel engine tail gas SCR denitration system
  • Marine diesel engine tail gas SCR denitration system

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Embodiment Construction

[0039] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0040] Such as Figure 1-7 As shown, a marine diesel engine exhaust SCR denitration system includes an SCR denitrification component 1 , an exhaust cooling component 3 and an exhaust filtering component 4 .

[0041] The exhaust gas of the marine diesel engine is firstly purified and denitrated by the SCR denitrification component 1 , cooled by the exhaust cooling component 3 to realize heat dissipation, and finally filtered and purified by the exhaust gas filter component 4 .

[0042] The specific structure of the SCR denitrification component 1 is as follows:

[0043] The SCR denitrification component 1 includes...

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Abstract

The invention discloses a marine diesel engine tail gas SCR denitration system. The system involves an SCR denitration assembly, a tail gas cooling assembly and a tail gas filtering assembly, and tailgas generated by the SCR denitration assembly is cooled by the tail gas cooling assembly and then filtered and purified by the tail gas filtering assembly; the SCR denitration assembly comprises a plurality of SCR denitration components which are arranged up and down at intervals, and the adjacent SCR denitration components communicate with each other; and the SCR denitration components comprisedenitration disc bodies, disc body cavities are formed in the denitration disc bodies, a plurality of denitration cylinders communicate with the denitration disc bodies, SCR denitration catalysts areassembled in the denitration cylinders, the denitration cylinders communicate with gas inlet nozzle pipes, the adjacent denitration disc bodies communicates with each other through through pipes, andthe denitration disc bodies communicate with the tail gas cooling assembly. According to the system, by means of the design of the device components, the denitration on the tail gas can be effectivelyachieved, the temperature of the tail gas can be efficiently reduced, the cleanliness of the tail gas is improved, and the environmental pollution is effectively reduced.

Description

technical field [0001] The invention relates to the field of SCR denitrification devices, in particular to an SCR denitrification system for marine diesel engine exhaust. Background technique [0002] The diesel engine is the power part of the ship. During the working process of the diesel engine, it can produce a large amount of diesel engine exhaust gas. The diesel engine exhaust gas refers to the exhaust gas emitted by the diesel engine after burning diesel oil. The exhaust gas contains hundreds of different compounds. This gas emission is not only The smell is weird, dizzy and nauseating, and affects people's health. Experts from the World Health Organization have determined that diesel engine exhaust, like asbestos and arsenic, is highly carcinogenic. [0003] Diesel engine exhaust pollutants mainly include: carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, soot particles (certain heavy metal compounds, lead compounds, black smoke and oil mist), odor (for...

Claims

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Application Information

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IPC IPC(8): F01N3/20F01N3/28F01N13/08F01N13/00F01N3/04F01N5/02F01N3/021
CPCF01N3/021F01N3/043F01N3/2066F01N3/28F01N5/02F01N13/004F01N13/082F01N2250/02F01N2250/10F01N2590/02F01N13/009Y02T10/12
Inventor 蒋峰朱军武华攀龙
Owner JIANGSU FENGYE TECH ENVIRONMENTAL PROTECTION GRP CO LTD