External combustion engine and method of operation thereof

Abstract

The present invention relates to an external combustion engine and its working method. The external combustion engine includes a compression cooling part, a heating expansion part, a regenerator and a burner, and its main design is that the compression cooling part includes at least two connected in series A double-acting compressor with a cooler installed between two adjacent compressors; the expansion part includes at least two double-acting expanders connected in series, and a heater is connected before the air inlet of each expander; the compression cooling part A regenerator is connected with the heating expansion part; the inlet of the burner communicates with the exhaust port of the last stage expander. The working method is that the air undergoes multi-stage compression and intermediate cooling, heat recovery and heat absorption, multi-stage heating and expansion, and after the exhaust gas is burned, the gas is used as the heat source of the heater and the regenerator. The invention has the advantages of high heat efficiency, good fuel adaptability, stable operation, little pollution, etc., and is suitable as an improvement of external combustion engines or similar products.

Description

technical field [0001] The invention relates to an engine, which is an external combustion engine and a working method thereof. Background technique [0002] An engine generally refers to a heat engine, which is a device that converts fuel or other energy into heat energy of a working medium and further converts heat energy into mechanical energy output. [0003] With the development of economy and society, the human demand for power and electricity continues to grow, but the depletion of fossil energy and the environmental pollution caused by the burning and utilization of fossil energy have brought huge negative impacts on society. Seeking a new high-efficiency and environmentally friendly engine and a multi-fuel and multi-heat source engine that can utilize multiple energy forms such as gas, liquid, solid form energy, and renewable energy (solar energy, biomass, geothermal energy, etc.) are currently the solution to energy power problems. an important means. [0004] Th...

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Problems solved by technology

[0010] In order to overcome some of the shortcomings of the above-mentioned common engines, such as insufficient fuel combustion of internal combustion engines, serious exhaust pollution, poor efficiency of variable working conditions, engine wear, high requirements for fuel quality, deflagration, noise and vibration, and other shortcomings; gas turbines have high fuel requirements and external Combustion-type gas turbines are less demanding on fuel, but both require large power and high temperature of working fluid to have high thermal efficiency, high requirements on materials, high manufacturing costs and other shortcomings. The present invention proposes a new type of gas turbine External combustion engine and method of operation thereof capable of providing power for applications requiring low to moderate power

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