Exhaust waste heat power generation and exhaust purification system based on Stirling generator

Abstract

The invention relates to an exhaust waste heat power generation and exhaust purification system based on a Stirling generator. The exhaust waste heat power generation and exhaust purification system based on the Stirling generator comprises an exhaust emission purification unit and an exhaust waste heat power generation unit which are connected with each other. The exhaust emission purification unit comprises a first exhaust pipe, a one-way valve, a secondary combustion and heat exchange device, and a second exhaust pipe, which are connected in sequence. The exhaust waste heat power generation unit comprises the Stirling generator, a radiator, a cold-hot gas exchanger, a hot cavity pipe extending into the secondary combustion and heat exchange device, and a regulated adaptor. High-temperature exhaust passes through the exhaust pipe and the one-way valve and enters the secondary combustion and heat exchange device, large solid particles in the exhaust are combusted by instant high heat generated by a spiral resistance wire, and the requirement of exhaust emission of PM2.5 (particulate matter 2.5) is met. The hot cavity pipe penetrates through a ring center of the spiral resistance wire and is heated by the high-temperature exhaust, the high-temperature spiral resistance wire also releases heat to increase temperature of a hot cavity of the Stirling generator, and accordingly thermal efficiency of the Stirling generator is improved.

Description

technical field [0001] The invention relates to waste gas treatment and waste heat utilization technology of a large diesel engine, in particular to a tail gas waste heat power generation and tail gas purification system based on a Stirling generator. Background technique [0002] my country will implement PM2.5 (fine dust particles with a particle size less than 2.5 microns) monitoring nationwide in 2016, like a "Sword of Damocles" hanging over the head of the environmental protection department. PM2.5 will directly enter the blood and lungs, and remain deep in the lungs, causing damage to the respiratory system and cardiovascular system. PM2.5 mainly comes from the emission of various pollutants from human beings, and the emission of locomotive exhaust is one of the important reasons. [0003] As the heart of large locomotives, diesel engines are the source of power and direct consumers of fuel. The power output of large diesel engines accounts for 25% to 42% of the tota...

AI Technical Summary

Problems solved by technology

Emitting these exhaust gases directly into the atmosphere, on the one hand, it causes a large amount of energy loss, and on the other hand, it puts more pressure on the current serious greenhouse effect

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