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Particle filter automatic cleaning system

A particle filter, automatic cleaning technology, applied in the direction of machine/engine, engine components, mechanical equipment, etc., can solve the problems of damage, DPF material cracking, poor thermal conductivity, etc., to achieve rapid cleaning, effective cleaning effect, non-destructive cleaning effect

Active Publication Date: 2022-04-15
ZHEJIANG YINLUN INTELLIGENT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the poor thermal conductivity of the DPF material and the difficulty of accurate temperature control in the DPF heating furnace, the DPF is prone to uneven heating
If the temperature is too high, it will easily cause the DPF material to crack and cause damage. If the temperature is too low, it will easily lead to insufficient combustion of particles and affect the cleaning effect.
[0006] In addition, it usually takes 2 to 3 hours to heat the internal temperature of the DPF to the cleaning temperature of about 600°C through the DPF heating furnace, which takes a long time and consumes a lot of energy for one cleaning.

Method used

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  • Particle filter automatic cleaning system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0157] Embodiment one function and effect

[0158] According to the particle filter automatic cleaning system provided in the first embodiment, since it has a server and a particle filter cleaning device, the server stores the theoretical heating treatment curve and the history of the particle filter cleaning device cleaning the particle filter in the past Heating treatment curve, and when the particle filter cleaning equipment performs cleaning, its control device will control the heating unit, air flow driving unit and The intake valve is feedback-controlled, so the treatment temperature can be made to conform to the theoretical heating treatment curve, ensuring that the particle filter can be cleaned quickly in a short time. Also, because the control device will also perform compensation control on the heating unit, the air flow drive unit, and the intake valve according to the historical heating treatment curve, it can further make the treatment temperature rise and fall i...

Embodiment 2

[0182] Embodiment two function and effect

[0183] On the basis of having the same technical effect as that of Embodiment 1, in this Embodiment 2, the power of the heating unit is controlled by the heating control part according to the comparison result and the actual temperature change rate, so that only the heating unit is controlled to make the current The treatment temperature conforms to the theoretical heat treatment curve.

Embodiment 3

[0185] For the convenience of expression, in the third embodiment, the same structures as those in the first embodiment are given the same symbols, and the same descriptions are omitted.

[0186] In Embodiment 1, in the heating up phase, high temperature maintaining phase and first cooling down phase, the opening degree of the intake valve is only controlled by the intake valve control unit 742 so that the current processing temperature conforms to the current target temperature on the theoretical temperature processing curve. Compared with it, the difference of the third embodiment is that in the heating up stage, the high temperature maintaining stage and the first cooling stage, the power change of the blower is also controlled by the driving control part, and the current processing temperature is matched with the current temperature by cooperating with the intake valve control part. target temperature.

[0187] Figure 13 It is a functional block diagram of the particle f...

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PUM

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Abstract

The invention provides a particle filter automatic cleaning system for quickly cleaning the DPF by high-temperature air flow, which is characterized in that it includes: at least one particle filter automatic cleaning device; and a server, the particle filter automatic cleaning device and management The terminals are respectively connected by communication, wherein, the server has a theoretical heating curve storage unit and a historical heating curve storage unit, the theoretical heating curve storage unit stores a predetermined theoretical heating treatment curve, and the historical heating curve storage unit stores the particle filter automatic cleaning equipment. The historical heating treatment curve generated when the particle filter is cleaned, the control device performs feedback control on the heating unit, air flow drive unit and intake valve based on the current treatment temperature and the theoretical heating treatment curve, and based on the historical heating treatment curve in the follow-up The temperature change at any moment is compensated and controlled on the basis of feedback control, so that the treatment temperature conforms to the predetermined heating treatment curve.

Description

technical field [0001] The invention belongs to the technical field of particle filter cleaning, and in particular relates to a particle filter automatic cleaning system. Background technique [0002] The exhaust system of a diesel vehicle includes an exhaust pipe and a diesel particulate filter (Diesel Particulate Filter, DPF for short) arranged in the exhaust pipe. Adsorption and filtration to prevent exhaust gas from polluting the air. However, as the working time of the exhaust system of diesel vehicles increases, the particulate matter and oil pollution inside the DPF filter element will also accumulate, which will lead to an increase in the exhaust back pressure of the vehicle, an increase in the fuel consumption of the vehicle, and a decrease in power. Furthermore, when the DPF filter element is severely clogged, exhaust gas cannot be discharged. [0003] The conventional solution to the above problems is to regularly remove the DPF from the exhaust system of a dies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/021F01N3/023F01N3/027
CPCF01N3/021F01N3/0237F01N3/027
Inventor 项昶斌张秦涛李建臣陈立峰齐明武娄立武
Owner ZHEJIANG YINLUN INTELLIGENT EQUIP CO LTD