An internal combustion engine heat energy recovery power generation device

Abstract

The invention relates to a thermal energy recovery power generation device of an internal combustion engine, which comprises a heat energy recovery box, a cold end heat sink and a temperature difference power generation device, among which the heat energy recovery box is connected with an exhaust port of an internal combustion engine, a cooling liquid outlet of the internal combustion engine is connected to a hot end inlet port of the thermoelectric generator through a first pipe, a coolant inlet of the heat energy recovery tank is connected to a hot end outlet port of the thermoelectric generator through a second pipe; the heat energy recovery box is used for absorbing heat of the tail gas discharged from the internal combustion engine to heat the cooling liquid in the heat energy recovery tank; and a water inlet of the cold end radiator is connected to a cold end outlet port of the thermoelectric generator, and a water outlet of the cold end radiator is connected to a cold end inlet port of the thermoelectric generator. By the technical solution of the present invention, recovery and utilization of the engine exhaust gas can be realized.

Description

technical field [0001] The invention relates to the technical field of internal combustion engine heat energy recovery, in particular to an internal combustion engine heat energy recovery power generation device. Background technique [0002] Energy is an indispensable resource for human survival and development, especially because of the discovery, development and utilization of electricity, which greatly promotes the progress of human civilization. Since then, human production and life have become increasingly inseparable from electricity. And power shortages appear at any time in industrially developed areas. In addition to coal, oil, natural gas and other non-renewable high-level resources that can generate electricity, how to fully develop and utilize recyclable low-level energy to generate electricity has become an important research topic in countries around the world today. [0003] As we all know, the internal combustion engine will discharge a large amount of exha...

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Problems solved by technology

[0003] As we all know, the internal combustion engine will discharge a large amount of exhaust gas in the process of doing work. At present, the efficiency of the gasoline engine is 25% to 35%, while the efficiency of the diesel engine is 35% to 45%. Most of the remaining energy comes from the internal combustion engine in the form of exhaust gas. It is exhausted and wasted, and the utilization of this part of heat energy is seldom in the prior art

In order to meet the emission standards of exhaust gas, it is even necessary to install a three-way catalytic converter containing rare and precious metals, which not only wastes energy in vain, but also wastes a certain amount of resources

Since the waste heat resources in the tail gas are generally discharged for a long time, the accumulation is actually a very considerable amount of energy, but there is a lack of application for the recovery and utilization of this part of energy in the prior art

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