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Automatic particle filter cleaning system

A particle filter and automatic cleaning technology, used in machines/engines, engine components, mufflers, etc., can solve problems such as cracking, damage, and poor thermal conductivity of DPF materials, and achieve effective cleaning, non-destructive cleaning, and rapid cleaning.

Active Publication Date: 2021-08-06
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 It is a block diagram of the particle filter automatic cleaning system in Embodiment 1 of the present invention.

[0041] Such as figure 1 As shown, the particulate filter automatic cleaning system 100 has n particulate filter automatic cleaning devices 101, a server 102, a management terminal 103, and a communication network 104a and a communication network 104b.

[0042] The server 102 communicates with each particle filter automatic cleaning device 101 through the communication network 104a, and communicates with the management terminal 103 through the communication network 104b. In this example,

[0043] figure 2 It is a block diagram of an automatic cleaning device for a particle filter in Embodiment 1 of the present invention, image 3 It is a structural schematic diagram of the automatic cleaning equipment for the particle filter in the first embodiment of the present invention.

[0044] Such as figure 2 and image 3 As shown, the particulate fi...

Embodiment 2

[0164] For the convenience of expression, in the second embodiment, the same structures as those in the first embodiment are given the same symbols, and the same descriptions are omitted.

[0165] In Embodiment 1, in the heating up phase, high temperature maintaining phase and first cooling down phase, only the opening degree of the intake valve is controlled by the intake valve control unit so that the current processing temperature conforms to the current target temperature on the theoretical temperature processing curve. In comparison, the difference of the second embodiment is that in the heating up stage and the high temperature maintaining stage, only the heating control unit controls the power variation of the heating unit so that the current processing temperature conforms to the current target temperature.

[0166] Figure 11 It is a functional block diagram of the particle filter automatic cleaning device and the control device in the second embodiment of the present...

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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Abstract

The invention provides an automatic particle filter cleaning system for quickly cleaning a DPF (diesel particulate filter) through high-temperature air flow. The automatic particle filter cleaning system is characterized by comprising at least one automatic particle filter cleaning device and a server, the server is in communication connection with the particle filter automatic cleaning device and a management terminal, the server is provided with a theoretical heating curve storage unit and a historical heating curve storage unit, the theoretical heating curve storage unit stores a preset theoretical heating treatment curve, the historical heating curve storage unit stores a historical heating treatment curve generated when a particle filter is cleaned by the automatic particle filter cleaning device, a control device conducts feedback control on the heating unit, the air flow driving unit and the air inlet valve based on the treatment temperature at the current moment and a theoretical heating treatment curve, and compensation control is performed on the basis of feedback control based on the temperature change of the historical heating treatment curve at the subsequent moment, so that the treatment temperature conforms to the preset 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 Applications(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