DPF regeneration system capable of optimizing heat management and control method

A regeneration system and DPF technology, applied in the electronic control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, exhaust treatment, etc., can solve problems such as low regeneration efficiency, eliminate energy loss, reduce layout, and reduce The effect of energy loss

Active Publication Date: 2019-07-19
JIANGSU UNIV
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Problems solved by technology

However, the exhaust temperature of a diesel engine is usually higher than 300°C. In this high temperature environment, the main active substance O in NTP is 3 Will decompose in large quantities, resulting in low regeneration efficiency

Method used

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  • DPF regeneration system capable of optimizing heat management and control method
  • DPF regeneration system capable of optimizing heat management and control method
  • DPF regeneration system capable of optimizing heat management and control method

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0034] combined with figure 1 As shown, the DPF regeneration system with optimized thermal management in the present invention includes a DPF system, an NTP system, a temperature control system and a control system. The low-temperature plasma system 200 is installed upstream of the DPF system 100 to provide active gas for the regeneration of the DPF system 100; the temperature control system 400 provides a target working temperature for the regeneration of particulate matter.

[0035] combined with figure 2 As shown, the DPF system includes a main exhaust pipe 101 , a DPF 102 and a pressure valve 103 . The temperature control system includes an incubator 301 , a radiator 302 , a water pump 303 , a water tank 304 and a thermostat valve 305 . The control system includes...

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Abstract

The invention discloses a DPF regeneration system capable of optimizing heat management and a control method, and relates to the technical field of diesel engine exhaust aftertreatment. A DPF system,an NTP system and a temperature control system are connected with a control system, the control system adjusts the work state of the systems according to the working condition information, when a diesel engine is shut down, the NTP valve is opened, NTP is sprayed into DPF, an active substance oxidizes the PM in the DPF, and the aim of regenerating DPF is achieved; in the running process of the diesel engine, through control of the control system over the temperature control system, the DPF system is cooled, the temperature of the DPF is reduced properly, when shutdown for regenerating DPF is carried out, a heat medium serves as a heat source, the regeneration process is stably carried out, through the temperature control system, in the diesel engine shutdown regeneration process, the temperature of the DPF is maintained within the suitable temperature range, and the aim of stably and efficiently regenerating DPF is achieved; and in the diesel engine running process, the temperature control system is used for cooling the DPF, the high-temperature impact of the exhaust temperature for the DFP is reduced, and the service life of the DPF is prolonged.

Description

technical field [0001] The invention relates to the technical field of aftertreatment of diesel engine exhaust, in particular to a DPF regeneration system and control method for optimizing thermal management. Background technique [0002] The particulate matter (Particulate Matter, PM) produced by the diesel engine will cause great harm to the atmospheric environment and human health. As one of the most effective means to reduce PM emissions, diesel particulate filter (Diesel Particulate Filter, DPF) has become an important part of diesel engine aftertreatment system. The overall capture efficiency of DPF for PM can reach about 90%, but with the increase of diesel engine running time, the PM captured in DPF will gradually increase, and the exhaust back pressure will increase, which will affect the performance of diesel engine in severe cases, so it needs to be oxidized in time Removing the particulate matter in the DPF means timely regenerating the DPF. [0003] Low-temper...

Claims

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Application Information

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IPC IPC(8): F01N9/00F01N3/023F01N11/00
CPCF01N3/0238F01N9/002F01N11/002F01N2260/022F01N2260/024Y02T10/40
Inventor 蔡忆昔赵楠施蕴曦崔应欣陈祎季亮
Owner JIANGSU UNIV
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