Temperature differential power generation module for underwater

Abstract

The present invention discloses a temperature differential power generation module for underwater. The module comprises housing, a cover plate, a flexible metal film and a vacuum-pumping part. The module can effectively convert temperature difference to electric energy through a temperature differential generation piece through adoption of the temperature difference between hydrothermal solution and cold water in the condition of underwater hydrothermal solution environment, the flexible metal film can closely cling to the temperature differential generation piece through adoption of the flexible metal film vacuum-pumping design, and the residual gas in the module can be exhausted to the utmost extent through combination of the home-made vacuum-pumping part to allow the fitting between the flexible metal film and the temperature differential generation piece to be closer so as to greatly reduce the thermal resistance in the generation process. Through adoption of the flat housing design, the temperature differential generation piece can be vertically extended and arranged in a groove, the installation process is more concise and convenient, the underwater seal effect is more reliable, good voltage-withstanding and thermal transmission effects are obtained, and the utilization ratio of the hydrothermal solution thermal energy is high.

Description

technical field [0001] The invention relates to a thermoelectric power generation module, in particular to a thermoelectric power generation module used in an underwater hydrothermal outlet. The module can efficiently utilize the temperature difference energy between the hydrothermal fluid and the surrounding cold water to generate electricity. Background technique [0002] The earth is continuously transferring heat from the inside to the outside in various forms. Crustal heat flow is an indicator to measure the heat loss of the earth. In the 1970s and 1980s, there were extensive seabed heat flow surveys. The adjustment results showed that the global average crustal heat flow value is about 60MW / m2, and the heat flow value of the seabed crust The value of crustal heat flow is slightly higher than that of land, and the heat flow value of plate spreading boundary is higher than that of plate convergence boundary. Regions with hydrothermal activity are areas of intense heat l...

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Problems solved by technology

[0003] However, this heat has not been well collected and utilized at present.

In the past, this kind of underwater hydrothermal temperature difference device, as recorded in CN103944452A, did not directly use the energy of the hydrothermal fluid, but realized heat conversion through heat pipes, which was inefficient

And when using the device, it needs to be inserted into the underwater hydrothermal vent, which will easily cause the hydrothermal vent to be blocked, or even stop eruption, destroying the original ecological environment

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