Large marine diesel engine emission post-processing system and simulation table thereof

A marine diesel engine and simulation platform technology, applied in exhaust gas treatment, general control systems, simulators, etc., can solve the problems that have not yet collected data, found no instructions or reports, etc.
CN112610310AActive Publication Date: 2021-04-06HUDONG HEAVY MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUDONG HEAVY MACHINERY
Publication Date
2021-04-06

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Abstract

The invention provides a large marine diesel engine emission post-processing system and a simulation table thereof. A reactor is connected with a venturi management unit and a fan unit; the venturi management unit is connected with the fan unit; the fan unit is connected with an afterburning unit; the afterburning unit is connected with the urea supply unit; an electrical control system is connected with the reactor, the venturi management unit, the fan unit and the urea supply unit; valve control systems are respectively arranged on connecting links between the electrical control system and the reactor, between the electrical control system and the venturi management unit, between the electrical control system and the fan unit as well as between the electrical control system and the urea supply unit; an emission reduction control system is connected with the electrical control system; and the simulation table is connected with the emission reduction control system. By adopting the large marine diesel engine emission post-processing system disclosed by the invention, the functionality and the safety of an LP-SCR emission reduction control system can be tested in a state that a host and an LP-SCR equipment are shut down.
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Description

technical field

[0001] The invention relates to an electrical control technology in the technical field of marine diesel engines, in particular to a large-scale marine diesel engine exhaust after-treatment system and a simulation system thereof. Background technique

[0002] The third stage (Tier III) NOx emission regulations promulgated by the International Maritime Organization (IMO) will be implemented in NOx emission control areas from January 1, 2016. Selective catalytic reduction reaction (SCR), as a good exhaust aftertreatment strategy, has been selected by a large number of marine diesel engines as exhaust aftertreatment equipment to deal with the nitrogen oxides generated by marine diesel engines, which stimulates SCR products of mass production.

[0003] Selective catalytic reduction reaction (SCR) is divided into high-pressure (HP) type and low-pressure (LP) type. Compared with HP-SCR type, because the supercharger is in front of the reactor, the temperature is l...

Claims

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