Submarine hydrothermal fluid thermoelectric power generation device

Abstract

The invention provides a submarine hydrothermal fluid thermoelectric power generation device, which comprises an evaporator for heating a liquid working medium into superheated steam, a generator for converting mechanical energy into electric energy, an expansion machine for acting to drive the generator to generate electricity by using superheated steam expansion, a circulating pump for driving the working medium to circulate, and a condenser for condensing working medium steam exhaust after acting through expansion into a fluid, wherein the expansion mechanism is connected with an input end of the generator and an inlet of the expansion machine communicates with an outlet of the evaporator; an outlet of the circulating pump communicates with the inlet of the evaporator; the inlet of the condenser communicates with the outlet of the expansion machine and the outlet of the condenser communicates with the inlet of the circulating pump. The hydrothermal fluid is taken as a heat source, surrounding seawater is taken as a cold source, and electric energy is provided for deep-sea exploration and operation equipment by adopting the mode of acting through closed thermal cycle-driven expansion, so that a lot of temperature difference energy of the deep-sea floor hydrothermal fluid can be effectively utilized.

Description

technical field [0001] The invention relates to the technical field of seabed energy utilization, in particular to a seabed hydrothermal thermoelectric power generation device. Background technique [0002] The depths of the ocean contain huge seabed hydrothermal activity heat energy. It is estimated that the total heat flux contributed by the global ocean is 3.2×10 12 Of W, 1 / 3 is achieved through hydrothermal activities. The most obvious hydrothermal activity is the hydrothermal vents that occur in mid-ocean ridges. The temperature of the erupted fluid can reach 400°C, while the temperature of the surrounding seawater is close to 0°C. Carrying out research on the effective utilization of this thermal energy of temperature difference to supply energy for deep-sea exploration and operation equipment such as underwater robots has very significant scientific and technological progress significance. [0003] At present, most of the power generation devices developed are based...

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Problems solved by technology

[0003] At present, most of the power generation devices developed are based on the Seebeck effect, that is, the voltage difference between the two substances caused by the temperature difference between two different electrical conductors or semiconductors is used to generate current, and the generated power is relatively weak, which is not enough to effectively use the deep seabed in large quantities. hydrothermal energy

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