Heat collecting silencer of internal combustion engine

Abstract

The invention discloses a heat collecting silencer of an internal combustion engine. The silencer comprises a cylinder body, wherein the lower end and upper end of the cylinder body are respectively provided with an air inlet and an air outlet. The silencer provided by the invention is characterized in that a primary expansion chamber is arranged at the bottom layer of the cylinder body and is communicated with the air inlet; a secondary expansion chamber is arranged in the cylinder body and is adjacent to and communicated with the primary expansion chamber; the tertiary expansion chamber is arranged in the cylinder body and is adjacent to and communicated with the secondary expansion chamber; the quartus expansion chamber is arranged on the upper layer of the interior of the cylinder body, is adjacent to and communicated with the tertiary expansion chamber, and is provided with an air outlet; the expansion chambers are isolated by open pore insulation plates; the primary expansion chamber and the secondary expansion chamber are internally provided with heating medium coiler rings provided with heating medium inlet pipes and heating medium outlet pipes; the center of each heating medium coiler ring is provided with perforative intubation tubes; the primary expansion chamber and the secondary expansion chamber are externally provided with thermal insulation layers; and the tertiary expansion chamber and the quartus expansion chamber are internally provided with sound insulation intubation tubes. The silencer has the advantages of noise reduction, heat collection, capabilityof regulating the heat energy output conveniently, good noise reduction effect in exhaust emission, strong heating adaptability, simple structure and small volume.

Description

technical field [0001] The invention relates to a waste heat utilization and noise reduction device of an internal combustion engine, in particular to a structural device for utilization of exhaust heat of an internal combustion engine, noise reduction and heat output control. Background technique [0002] With the increasing shortage of oil resources and the deteriorating environment, it is urgent to save energy and reduce emissions. Diesel generator sets have two major emission hazards to the environment, that is, hot exhaust and strong noise emissions. About 25% of the heat energy of diesel combustion is wasted in the form of exhaust emissions. If this part of relatively high-grade heat is recycled, the thermal efficiency of the diesel generator set can be greatly improved. The heat collecting muffler, which integrates exhaust waste heat utilization and exhaust noise reduction, is a highly efficient energy saving and emission reduction solution with a simple structure, ...

AI Technical Summary

Problems solved by technology

Then, the exhaust gas can only be discharged through the tube side of the heat collector muffler, the noise reduction method is single, and the noise reduction effect is limited; the use of water vapor as the heat medium also has its limitations, and the steam formed by heat collection has high pressure, low temperature, and water Easy to wear, etc., especially in areas with high cold and water shortages, it cannot be used

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