Liquid nitrogen evaporation vaporization device and liquid nitrogen power generation system

By designing a liquid nitrogen evaporation and vaporization device and a liquid nitrogen power generation system, liquid nitrogen is heated by mixing and burning it with oxygen using a gas nozzle, achieving rapid vaporization and efficient energy conversion of liquid nitrogen to drive a pneumatic motor for power generation. This solves the problem of applying liquid nitrogen in the field of power generation and realizes pollution-free power generation.

CN115654470BActive Publication Date: 2026-07-17HARBIN SUNFLOWER NEW MATERIALS & ENERGY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN SUNFLOWER NEW MATERIALS & ENERGY RES INST
Filing Date
2022-10-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The vaporization characteristics of liquid nitrogen are not controlled in existing technologies, making it unsuitable for effective application in the power generation field.

Method used

A liquid nitrogen evaporation and vaporization device was designed, including a liquid nitrogen vaporization and evaporation boiler and a heating component. Heat is provided by the mixture of gas nozzle and oxygen input pipe to rapidly vaporize liquid nitrogen in the liquid nitrogen expansion chamber. Waste heat is recovered through the evaporation pipe and combined with a pneumatic motor to drive a generator to generate electricity.

Benefits of technology

It achieves rapid vaporization and efficient energy conversion of liquid nitrogen, which can drive a pneumatic motor to generate electricity, realizing a pollution-free power generation process that is environmentally friendly and energy-saving.

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Abstract

The present application relates to liquid nitrogen energy storage and application technical field, provide a kind of liquid nitrogen evaporation vaporization device, also provide a kind of liquid nitrogen power generation system, including: liquid nitrogen vaporization evaporation boiler, inside is equipped with liquid nitrogen expansion cavity and boiler combustion chamber close to liquid nitrogen expansion cavity, liquid nitrogen expansion cavity is equipped with evaporation pipe being communicated with boiler combustion chamber, liquid nitrogen vaporization evaporation boiler is equipped with liquid nitrogen input pipeline and high-pressure nitrogen gas output channel, liquid nitrogen input pipeline and high-pressure nitrogen gas output channel are all communicated with liquid nitrogen expansion cavity;Heating assembly is set in boiler combustion chamber, including multiple gas nozzles and multiple oxygen input pipes, and ignition mechanism is provided on gas nozzle.Compared with prior art, high-pressure nitrogen gas formed by liquid nitrogen vaporization is used to drive pneumatic motor, and the generator is driven by the pneumatic motor to generate electricity, and the high-pressure nitrogen kinetic energy is converted into electrical energy by the generator, to realize pollution-free power generation process, environmental protection and energy saving.
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