Thermal storage type thermoelectric direct conversion device

Abstract

The invention provides a thermal storage type thermoelectric direct conversion device. Thermal conduction connection between a lithium and sulfur hexafluoride reactor and the hot junction of an alkali metal thermoelectric converter is kept excellent, a water tank is arranged outside the alkali metal thermoelectric converter, a heat insulating material is arranged between the alkali metal thermoelectric converter and the water tank, a circulating water pump is arranged in the water tank, a heat insulating layer is arranged between the lithium and sulfur hexafluoride reactor and the water tank, a capillary evaporator is an annular cavity and is sleeved on the cold junction of the alkali metal thermoelectric converter, the top of the capillary evaporator is provided with a small hole communicated with the water tank as a cooling water inlet, the inner surface of the capillary evaporator is coated with a layer of high water-absorption material, the lateral surface of the capillary evaporator is provided with a steam outlet hole and is connected with an output pipeline entering a return pipe, water vapor is condensed into water in the reflow pipe and the water flows back into the water tank through the water inlet of the water tank, and an electrode of the alkali metal thermoelectric converter extends out of the shell of a battery. The thermal storage type thermoelectric direct conversion device has the advantages of reasonable and compact design, large thermal storage density, stable heat release and high power, and is independent of the outside and can supply power for a long time.

Description

(1) Technical field [0001] The invention relates to a device for storing and releasing heat and directly converting heat energy into electric energy, and more specifically relates to a heat storage type thermoelectric direct conversion device. (2) Background technology [0002] In many fields of energy use, the provision of electric energy is no longer satisfied with ordinary power supply methods. In outer space, such as satellites, space stations, space probes, etc., they generally use photoelectric direct conversion systems for power supply. The power provided by this method is not very high, and the service life is not long. If the spacecraft requires a long service life, the solar panels and chemical storage batteries need to be replaced many times, which greatly increases the maintenance cost. However, with the acceleration of human exploration of space, it is inevitable to raise the demand for higher power and longer life space power system, and require low maintenanc...

AI Technical Summary

Problems solved by technology

The power provided by this method is not very high, and the service life is not long. If the spacecraft requires a long service life, the solar panels and chemical storage batteries need to be replaced many times, which greatly increases the maintenance cost.

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