Engine tail gas treatment system

An exhaust gas treatment and engine technology, which is applied in exhaust gas treatment, engine components, combustion engines, etc., can solve the problems of post-processor poisoning, post-processor scrapping, and increase the cost of post-processor use, so as to prevent poisoning and reduce usage. cost, the effect of improving the service life

Pending Publication Date: 2021-09-24
广西优艾斯提传感技术有限公司
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Problems solved by technology

Standard diesel oil contains a small amount of sulfur dioxide in the engine exhaust after combustion, but if diesel oil that does not meet the standard is used, the engine exhaust contains a large amount of sulfur dioxide. After the accumulation of sulfur dioxide in the after-processor, it is easy to cause after-processor poisoning. The scrapping of the post-processor will seriously affect the performance of the engine and greatly increase the cost of the post-processor

Method used

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  • Engine tail gas treatment system

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the specific embodiments in the accompanying drawings.

[0021] refer to figure 1 , an engine exhaust gas treatment system, comprising an ECU, an engine 2, a supercharger 3, and an afterprocessor 4 sequentially connected through an exhaust pipe 1, the ECU is connected to the engine 2 by communication, and the connection between the supercharger 3 and the afterprocessor 4 The exhaust pipe 1 is provided with a sulfur dioxide sensor 5 that communicates with the ECU;

[0022] The sulfur dioxide sensor 5 obtains the actual concentration of sulfur dioxide in the exhaust pipe 1 in real time, and sends the actual concentration to the ECU;

[0023] When the actual concentration reaches the first set value, the ECU controls the operation of the engine 2 according to the sulfur dioxide combustion strategy to increase the temperature of the exhaust gas, thereby burning and discharging the sulfur dioxide accu...

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Abstract

The invention discloses an engine tail gas treatment system, relates to the technical field of tail gas treatment, and solves the technical problem that the existing engine tail gas treatment cost is high. The system comprises an ECU, and an engine, a supercharger and a postprocessor which are sequentially connected through an exhaust pipe; the ECU is in communication connection with the engine; the system is characterized in that a sulfur dioxide sensor in communication connection with the ECU is arranged on the exhaust pipe between the supercharger and the postprocessor; the sulfur dioxide sensor obtains the actual concentration of sulfur dioxide in the exhaust pipe in real time and sends the actual concentration to the ECU; and when the actual concentration reaches a first set value, the ECU controls the engine to operate according to a sulfur dioxide combustion strategy, so that the temperature of the tail gas is increased, and sulfur dioxide accumulated in the processor is combusted and discharged.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, and more specifically, it relates to an engine exhaust gas treatment system. Background technique [0002] The post-processor for engine exhaust treatment contains precious metals, such as rhodium, and the price of precious metals is high (up to 5000-6000 yuan / gram). Standard diesel oil contains a small amount of sulfur dioxide in the engine exhaust after combustion, but if diesel oil that does not meet the standard is used, the engine exhaust contains a large amount of sulfur dioxide. After the accumulation of sulfur dioxide in the after-processor, it is easy to cause after-processor poisoning. Cause post-processor to be scrapped, can seriously affect the working performance of engine, and have increased the use cost of post-processor greatly. Contents of the invention [0003] The technical problem to be solved by the present invention is aimed at the above-mentioned deficienci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/025F01N9/00
CPCF01N3/0253F01N9/00F01N2560/027F01N2570/04Y02T10/40
Inventor 梁保权安利强王磊罗玉军
Owner 广西优艾斯提传感技术有限公司
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