A thermal energy reuse device for a combined power generation device

Abstract

The invention discloses a thermal energy reuse device for a combined power generation device, which comprises a metering pump, a primary preheater, a secondary preheater, a dehydrogenation reactor, a cooler, a steam-water separator, a filter, a hydrogen storage tank, a proton Main components such as exchange membrane fuel cells, regulating valves, temperature sensors, etc.; first, use the circulating water at the outlet of the proton exchange membrane fuel cell at a higher temperature to preheat the hydrogen-rich organic liquid, and then use the high-temperature dehydrogenation organic liquid at the outlet of the dehydrogenation reactor and The mixture of hydrogen preheats the hydrogen-rich organic liquid, and finally uses the lower temperature proton exchange membrane fuel cell inlet circulating water to cool the mixture of dehydrogenated organic liquid and hydrogen after the dehydrogenation reaction; the device of the present invention utilizes the fuel cell and the dehydrogenation reactor The generated waste heat is used to heat the hydrogen-rich organic liquid, which can effectively improve the energy utilization rate of the system; at the same time, the circulating water of the fuel cell is also used to cool the dehydrogenated organic liquid and the hydrogen mixture, which saves the supply of external cooling water and simplifies the system.

Description

technical field [0001] The invention belongs to the technical field of energy reuse, and in particular relates to a device for improving the thermal energy utilization rate of an organic liquid dehydrogenation device and a proton exchange membrane fuel cell combined power generation device. Background technique [0002] The hydrogen fuel cell power system has the advantages of high efficiency, low vibration and noise, low infrared characteristics, zero emissions, modular design, and easy installation and maintenance. It is an ideal solution for future green energy, although its development, operation and maintenance costs are still higher than Traditional diesel engine and gas turbine system, but because the system is still in the stage of rapid development, its collateral benefits are unmatched by other power systems at present. [0003] The hydrogen source device accounts for more than half of the total weight of the fuel cell system. Therefore, the key to improving the en...

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Problems solved by technology

[0002] The hydrogen fuel cell power system has the advantages of high efficiency, low vibration and noise, low infrared characteristics, zero emissions, modular design, easy installation and maintenance, etc. It is an ideal solution for future green energy, although at this stage its development and operation costs are still higher than Traditional diesel engine and gas turbine system, but because the system is still in the stage of rapid development, its side benefits are unmatched by other current power systems

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