A vehicle exhaust waste heat recovery device based on loop heat pipe

Abstract

The invention discloses an automobile exhaust waste heat recovery device based on a loop heat pipe. The recovery device includes an evaporation heat absorption part, a transmission part and a condensation heat release part; wherein, the evaporation heat absorption part includes an exhaust channel, an annular fin, a water tank and The steam outlet; the transmission part includes a sealed insulation shell, steam nozzles, turbine blades, shafts, water pumps and driven parts; and the condensation heat release part includes a condensate tank, exhaust steam inlet, wave wall pipe, and condensate outlet. According to the vehicle tail gas waste heat recovery device of the present invention, the device has simple structure, flexible use and low maintenance cost. Moreover, the three-way catalytic converter for purifying exhaust gas is arranged upstream of the exhaust passage, and the water tank is arranged downstream of the exhaust passage. This arrangement can ensure that the catalyst will not be affected when the heat recovery of high-temperature exhaust gas in the exhaust passage is performed. Purify the exhaust gas without blocking the discharge of exhaust gas. The overall heat exchange process adopts a loop heat pipe structure with high heat exchange efficiency.

Description

technical field [0001] The invention relates to an automobile tail gas waste heat recovery device based on a loop heat pipe. Background technique [0002] The energy utilization efficiency of the automobile engine is low, only about 30% of the chemical energy released by the engine fuel can be effectively used, and most of the energy is diffused or discharged into the atmosphere in the form of waste heat, which is largely wasted and has a negative impact on the environment. also had adverse effects. According to the displacement and fuel of different types of automobile engines, the exhaust temperature of automobile exhaust varies, which is about 400-600°C. Due to the high temperature, the heat in the exhaust gas has great utilization value. [0003] In order to effectively utilize the heat of automobile exhaust, many technologies related to the recovery and utilization of waste heat from automobile engine exhaust have emerged, that is, the heat contained in engine exhaust...

AI Technical Summary

Problems solved by technology

[0002] The energy utilization efficiency of the automobile engine is low, only about 30% of the chemical energy released by the engine fuel can be effectively used, and most of the energy is diffused or discharged into the atmosphere in the form of waste heat, which is largely wasted and has a negative impact on the environment. also had adverse effects

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