Cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device

Abstract

The invention discloses a cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device. Two semi-cylindrical shells with identical structures are connected onto an exhaust pipe in an abutting manner and fixed by fastening bolts in a welded mode, heat conducting fins are mounted on assembly grooves reserved in the semi-cylindrical shells, a certain number of thermoelectric generation modules are closely fitted on two sides of the fins, an independent thin-walled cooling pipeline with a rectangular section is arranged on the thermoelectric generation module on each surface of the fins, the cooling pipeline on each surface of the fins is fixedly mounted by supporting disks at two ends and a fastening device, and insulation gaskets are additionally mounted at different positions of the supporting disks to reduce influence on the temperature of cooling liquid in a cooling channel. The cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device has the advantages of simple and compact structure, high working reliability, fine heat conducting effect and the like. Compared with a traditional exhaust pipe thermoelectric generation device, the structure of the exhaust pipe does not need to be changed, exhaust back pressure cannot be affected, and the cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of thermoelectric power generation, and belongs to a novel form of engine waste heat recovery and utilization, in particular to a cylindrical shell straight plate fin type automobile exhaust thermoelectric power generation device. Background technique [0002] The automobile industry accounts for a very high proportion in my country's national economy. Since the beginning of the 21st century, the automobile industry has developed rapidly, and the corresponding energy required by automobiles has also increased day by day. The development of automobile energy-saving technology has attracted much attention. At present, the conversion efficiency of the energy generated by fuel combustion in automobile engines is only about 40%, which means that more than 60% of the energy in the fuel is not effectively utilized and is discharged into the atmosphere. In this 60% of the energy, the exhaust gas from the engine take...

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Problems solved by technology

[0003] Aiming at the deficiencies of the traditional automobile exhaust pipe thermoelectric power generation device, such as large changes to the exhaust structure, single power generation, insufficient contact of the power generation device, and influence on the exhaust back pressure of the engine, a cylindrical shell straight plate fin type automobile exhaust is proposed. Gas thermoelectric power generation device

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