Vehicle-mounted tail gas temperature difference power generation heat exchanger

Abstract

The invention provides a vehicle-mounted tail gas temperature difference power generation heat exchanger. The heat exchanger comprises a mounting base body. A device having the SCR function and a device having the noise reduction function are integrated into the mounting base body at the same time so that heat energy in high-temperature tail gas of an automobile engine can be recycled; and meanwhile, in the heat exchange process of the heat exchanger, compatibility between an automobile tail gas temperature difference power generation system and a tail gas emission system is improved. By means of the vehicle-mounted tail gas temperature difference power generation heat exchanger, the SCR function and the noise reduction function can be integrated; the problem that multiple devices are in tandem arrangement in the link of tail gas treatment is thoroughly solved; the integration degree is high; arrangement is easy to conduct; and a temperature difference power generation device can be applied to a commercial vehicle conveniently.

Description

technical field [0001] The invention relates to the technical field of designing heat exchangers for thermoelectric power generation, in particular to a vehicle-mounted exhaust air temperature differential power heat exchanger integrated with SCR and noise reduction functions. Background technique [0002] The emergence of automobile exhaust temperature difference power generation device provides a new possibility for improving vehicle fuel economy and energy saving and emission reduction. For commercial vehicles, diesel engines are commonly used. The exhaust temperature of diesel engines is high, the flow rate is large, and the content of particulate matter and nitrogen oxides is also high. In order to meet the requirements of emission regulations, SCR (Selective Catalytic Reduction Converter) must be installed. with silencer. Therefore, if another thermoelectric power generation device is to be installed, the space on the chassis will be very tight, and finally the volume...

AI Technical Summary

Problems solved by technology

Therefore, if another thermoelectric power generation device is to be installed, the space on the chassis will be very tight, and finally the volume and shape of the thermoelectric power generation device will be greatly limited, which in turn affects the application of the thermoelectric power generation device on commercial vehicles

Not only that, but there are already invention patents that propose thermoelectric power generation devices with integrated noise reduction functions, and thermoelectric power generation devices with integrated three-way catalytic converters or SCRs, but there is still no thermoelectric power generation device that integrates noise reduction and SCR functions at the same time. The main reason is that after the SCR is integrated, it will be difficult to arrange a suitable noise reduction device inside the thermoelectric power generation device while ensuring the heat exchange performance of the heat exchanger, so that the noise reduction effect is the same as that of the original silencer

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