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A device and control method for removing dpf particles and ash by gas-liquid multiphase jetting

A technology of injection device and DPF, which is applied in the direction of electric control, electric control, exhaust device, etc. The effect of depositing particles, eliminating particles, and avoiding insufficient combustion

Active Publication Date: 2022-04-26
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Existing DPF active regeneration devices have problems such as insufficient combustion, shell sintering, secondary pollution, and tail flames igniting combustibles

Method used

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  • A device and control method for removing dpf particles and ash by gas-liquid multiphase jetting
  • A device and control method for removing dpf particles and ash by gas-liquid multiphase jetting
  • A device and control method for removing dpf particles and ash by gas-liquid multiphase jetting

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] Such as figure 1 The device for removing DPF particles and ash by gas-liquid multi-phase injection includes a DPF device 9, and exhaust pipes 14 are installed on the upstream and downstream of the DPF device 9, and the I end in the figure is the upstream air intake end. The Ⅱ end is the downstream gas outlet end.

[0032] On the exhaust pipe 14 at the upstream air intake end, a diesel and air premix injection device 10 and a cleaning solution injection device 12 are sequentially installed along the air intake direction, wherein the solution sprayed by the cleaning solution injection device ...

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Abstract

The invention discloses a device and a control method for removing DPF particles and ash by gas-liquid multiphase injection. The gas-liquid multiphase injection device includes devices such as diesel oil and air premix injection, cleaning solution injection, and tail-end flame extinguishing solution injection; according to In the working condition of the actual operation of the diesel engine, the gas-liquid multiphase injection controller collects information such as the rotating speed, running time and throttle position of the diesel engine, and adjusts parameters such as DPF regeneration time, diesel oil, air and solution injection volume in real time; the gas-liquid injection of the present invention The multi-phase injection device and control method have the functions of DPF dust removal and tail end flame extinguishing; on the basis of the existing DPF regeneration technology, the present invention reduces the number of particles and eliminates the risk of tail flame ignition in the regeneration process, so as to improve the DPF of diesel engines Purpose of post-processing performance.

Description

technical field [0001] The invention belongs to the technical field of aftertreatment of diesel engines, and in particular relates to a device and a control method for removing DPF particles and ash by gas-liquid multiphase injection. Background technique [0002] Installing a DPF device is a better way to solve the particulate matter in the exhaust of diesel engines. When the number of particles trapped in the DPF reaches a certain amount, the exhaust back pressure increases, forming resistance, the idling speed of the diesel engine will increase significantly, and the performance will decline. The DPF needs to be regenerated and cleaned. [0003] DPF regeneration is divided into active regeneration and passive regeneration. Active regeneration mainly includes burner fuel injection heating regeneration, electric heating regeneration, microwave heating regeneration and infrared heating regeneration, etc.; passive regeneration mainly includes diesel additive catalytic regene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D43/00
CPCF01N9/002F01N3/0232F01N3/023F02D37/02F01N2430/08F01N2430/00
Inventor 王忠朱佳隆刘帅李瑞娜
Owner JIANGSU UNIV
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