Full-automatic regeneration equipment for diesel vehicle emission PM2.5 filtering and collecting device

Abstract

The invention relates to a piece of full-automatic regeneration equipment for a diesel vehicle emission PM2.5 filtering and collecting device, which belongs to the technical field of engine exhaust emission particulate control. The system comprises an ECU (Electronic Control Unit), a three-way exhaust valve, a gas replenishment device, a diversion device, a combustion chamber, and a smoke filter.A first port of the three-way exhaust valve is connected to the gas outlet of a main channel of vehicle exhaust, a second port is connected to the gas inlet of a vehicle diversion pipe, and a third port is a bypass gas outlet. The gas replenishment device is arranged outside the system. The gas inlet of the diversion device is connected to the second port of the three-way exhaust valve. The frontend of the combustion chamber is connected with the diversion device, and the rear end is connected with the smoke filter. The regeneration system further comprises an oil tank. A pressure sensor is also arranged on the diversion pipe. A PM2.5 sensor and a flame-proof device are arranged at the outgoing gas guide port at the rear end of the smoke filter. The ECU is connected to a fuel pump, a motor, a temperature sensor, the PM2.5 sensor and an ignition device through signal lines. The service life of the smoke filter can be prolonged, and vehicles equipped with the post processing equipment will also benefit.

Description

technical field [0001] The invention belongs to the technical field of engine exhaust emission particle control, and relates to a fully automatic regeneration device for a diesel vehicle emission PM2.5 filtering and trapping device. Background technique [0002] Diesel engine exhaust contains many gaseous pollutants (including SO2, SO3, H2SO4, low-volatile and semi-volatile organic substances) and solid, irregularly shaped carbon black substances (soot), and these gaseous pollutants are formed Precursors of suspended particulates. 50% of them come from heavy-duty diesel engines such as large trucks and buses, and the toxic substances contained in PM2.5 in the exhaust gas of the engines are harmful to human health. About 3 million people around the world are killed by PM2.5 every year Bodily injury and death. [0003] After diesel is burned in the engine cylinder, carbon particles with a particle size of less than 10 μm will be produced, which can easily cause human respirat...

AI Technical Summary

Problems solved by technology

[0012] 1. The computer monitoring program is too simple to exert a comprehensive monitoring and control effect

[0013] 2. Without a memory device, it is impossible to trace all the data of the computer execution process (such as: start-up hours, regeneration time, regeneration times, regeneration temperature, etc.)

[0014] 3. The temperature in the regeneration process is not accurate enough

[0015] 4. The diversion device in the combustion chamber cannot properly divert the exhaust gas, resulting in uneven firepower and affecting the treatment effect of the filter (offset)

[0017] 6. When the regeneration system fails, there is no design or device to protect the vehicle and the filter

[0018] 7. The electronic ignition device has been in the smoke exhaust channel with high carbon accumulation for a long time, which weakens or fails to ignite, causing the system to stop operating

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