Internal combustion engine tail gas utilization heat energy power system based on multistage pressurization condensation

Abstract

The invention discloses an internal combustion engine tail gas utilization heat energy power system based on multistage pressurization condensation. The system comprises a gasifying device, a turbine, a condensing device and a one-way hydraulic pump for realizing circular communication through circulating pipes in sequence; circulating working mediums are filled in the circulating pipes; a heat collecting device is mounted at the external of the gasifying device, and is communicated with an internal combustion engine tail gas pipe; the condensing device includes a condensing pipe, a cooling fan and multiple pressurization mechanisms; the cooling fan is mounted above or below the condensing pipe; and the pressurization mechanisms are uniformly distributed at the middle part of the condensing pipe stage by stage. The internal combustion engine tail gas utilization heat energy power system based on multistage pressurization condensation has the advantages of quicker condensing speed, capability of reducing the condensation energy discharge and improving the heat energy conversion efficiency, stable operation and power adjustability.

Description

technical field [0001] The invention belongs to the field of energy utilization equipment, in particular to a thermal energy power system based on multi-stage pressurized condensation for utilizing exhaust gas of an internal combustion engine. Background technique [0002] Energy is an important material basis for the survival and development of human society. Throughout the history of the development of human society, every major progress of human civilization is accompanied by the improvement and replacement of energy. The development and utilization of energy has greatly promoted the development of the world economy and human society. [0003] However, with the continuous development and consumption of energy, non-renewable energy sources such as petroleum, coal mines, and natural gas are gradually reduced, and energy conservation and recycling are gradually being valued. The basic content of my country's current energy strategy is: adhere to the priority of conservatio...

AI Technical Summary

Problems solved by technology

[0007] However, the common problems of existing thermal power generation equipment are: a. The temperature requirements for high-temperature heat sources are high, generally above 200°C, and the thermal energy conversion efficiency is low, and the thermal energy conversion efficiency is generally 15% to 35%; b. The heat displacement of the condensing device is large, and the waste of heat energy is large. The condensation speed through the natural condensation method is slow, and the active condensation method (fan air cooling or liquid pump water cooling) requires additional power consumption; c. The turbine is prone to leakage of working fluid Problems; d. Turbine speed is unstable, and it is prone to stuck problems; e. The heat collection effect of the heat collector is not good, and the external waste heat absorption rate is small; f. The gasification temperature of the working medium is unstable, and the condensation effect of the working medium is not good , the working medium is easy to deteriorate or appear impurities; g. The existing equipment is relatively large

[0008] On the other hand, the thermal energy conversion efficiency of the existing internal combustion engine is about 45%, and the exhaust temperature of the internal combustion engine exhaust gas can be as high as 400°C, and there is a large energy waste in the exhaust emission.

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