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Research method and device for low-temperature combustion mechanism of combustion improver in DPF

A combustion mechanism and low-temperature combustion technology, which is applied to exhaust devices, noise reduction devices, mechanical equipment, etc., and can solve problems such as cumbersome calculations and lengthy processes

Active Publication Date: 2021-01-22
天津电子信息职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a research method and device for the low-temperature combustion mechanism of the combustion accelerant in a DPF, so as to alleviate the technical problems that the existing Golovitchev mechanism is accurate, but the calculation is cumbersome and the process is lengthy

Method used

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  • Research method and device for low-temperature combustion mechanism of combustion improver in DPF
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  • Research method and device for low-temperature combustion mechanism of combustion improver in DPF

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Embodiment 1

[0029] According to an embodiment of the present invention, an embodiment of a research method for the low-temperature combustion mechanism of a combustion oxidant in a DPF is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a set of computer-executable instructions such as computer system, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] figure 1 It is a flow chart of a research method for the low-temperature combustion mechanism of a combustion oxidant in a DPF according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0031] Step S102, using chemical reaction kinetics simulation software to construct a combustion model;

[0032] Step S104, using the combustion model to simplify the Golovitchev mechanism to ...

Embodiment 2

[0097] The embodiment of the present invention also provides a research device for the low-temperature combustion mechanism of the combustion aid in the DPF, and the research device for the low-temperature combustion mechanism of the combustion aid in the DPF is used to implement the combustion aid in the DPF provided by the above-mentioned content of the embodiment of the invention. The research method of the low-temperature combustion mechanism, the following is a specific introduction of the research device of the low-temperature combustion mechanism of the combustion oxidizer in the DPF provided by the embodiment of the present invention.

[0098] like Figure 7 as shown, Figure 7 It is a schematic diagram of the research method device for the low-temperature combustion mechanism of the combustion aid in the above-mentioned DPF, and the research method device for the low-temperature combustion mechanism of the combustion aid in the DPF includes: a construction unit 10, a ...

Embodiment 3

[0104] An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is used to store a program that supports the processor to execute the method described in the first embodiment above, and the processor is configured to execute the program stored in memory.

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Abstract

The invention provides a research method and device for a low-temperature combustion mechanism of a combustion improver in DPF, and relates to the technical field of combustion mechanism research, andthe method comprises the following steps: constructing a combustion model by utilizing chemical reaction kinetic simulation software; with a combustion model, simplifying a Golovitchev mechanism to obtain a combustion mechanism of a combustion improver under a low-temperature condition, the combustion improver being a diesel oil replacement mixture comprising multiple reaction gas including n-heptane, methylbenzene, oxygen, water, carbon monoxide and carbon dioxide; verifying the combustion mechanism, and the determining feasibility of the combustion mechanism. The technical problems that anexisting Golovitchev mechanism is accurate, but calculation is tedious and the process is tedious are solved.

Description

technical field [0001] The invention relates to the technical field of combustion mechanism research, in particular to a research method and device for the low-temperature combustion mechanism of a combustion accelerant in a DPF. Background technique [0002] According to the research, the passive regeneration of the DPF of the engine particulate filter cannot effectively remove soot, and the active regeneration of the DPF is still required. At this time, the method used is to inject a combustion aid inside the DOC at the front end of the DPF. The combustion of the post-injection oxidizer in the DOC increases the inlet temperature of the DPF, which is more conducive to the ignition and regeneration of the soot captured by the DPF. At the same time, the combustion of the post-injection oxidizer adjusts the composition of the exhaust gas accordingly, and the corresponding combustion products change the composition of the gas at the inlet of the DPF, which has a great impact on...

Claims

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Application Information

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IPC IPC(8): G16C20/10F01N3/023
CPCG16C20/10F01N3/023
Inventor 焦鹏昊张文
Owner 天津电子信息职业技术学院
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