Cleaning device for carrier in engine exhaust aftertreatment system and control method thereof
A technology of exhaust aftertreatment and aftertreatment device is applied in the field of cleaning devices for carriers in an engine exhaust aftertreatment system, and can solve the purification effect of the aftertreatment device and the deterioration of engine performance, the reduction of the purification efficiency of the aftertreatment device, and the activity of precious metal catalysts. To reduce the problems such as speeding up the active reduction reaction process, reducing the cleaning cost and reducing the concentration
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[0029] Reference will now be made to specific embodiments of the present invention with reference to the accompanying drawings, examples of which are shown in the drawings and described in detail below. The invention relates to a cleaning device for an engine exhaust aftertreatment system. The device can effectively remove accumulated ash in various types of engine aftertreatment system carriers and reduce the activity of precious metal catalysts on the carrier surface.
[0030] exist figure 1 The cleaning device of the engine exhaust post-treatment system shown includes: cleaning medium 1, booster pump 2, heater 3, temperature sensor 4, acoustic wave transmitter 5, post-processing fixture 6, sealing gasket 7, post-processing device 8, Porous medium carrier 9 , filter device 10 , reactor 11 , storage tank 12 , reactor bypass valve 13 , and single-cycle control valve 14 .
[0031] In a specific implementation process, the device is a circulating cleaning system, wherein the bo...
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