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Device for removing DPF particles and ash through gas-liquid multi-phase injection and control method

A technology of injection device and DPF, which is applied in the direction of electronic control, electrical control, exhaust device, etc. of exhaust gas treatment device, can solve the problems of secondary pollution tail flame, ignition of flammable substances, insufficient combustion, etc., to eliminate Depositing particles, eliminating particles, avoiding the effect of insufficient combustion

Active Publication Date: 2020-02-28
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Device for removing DPF particles and ash through gas-liquid multi-phase injection and control method
  • Device for removing DPF particles and ash through gas-liquid multi-phase injection and control method
  • Device for removing DPF particles and ash through gas-liquid multi-phase injection and control method

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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 for removing DPF particles and ash through gas-liquid multi-phase spraying and a control method. A gas-liquid multi-phase injection device comprises a diesel and air premixing spraying device, a cleaning solution spraying device, a tail-end flame extinguishing solution spraying device and the like. According to actual operating conditions of a diesel engine, information, such as rotational speed, operation time and throttle position, in the diesel engine is collected by a gas-liquid multi-phase spraying controller, and parameters, such as DPF regeneration time,diesel oil spraying amount, air spraying amount and solution spraying amount, are adjusted in real time. The gas-liquid multi-phase spraying device and the control method have the functions of DPF ash removing and tail end flame extinguishing. On the basis of an existing DPF regeneration technology, the number of particles is reduced, the risk of tail flame ignition in the regeneration process iseliminated, and the purpose of improving the DPF after-treatment performance of the diesel engine is achieved.

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 Applications(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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