A device that moves up and down autonomously in the sea to exchange seawater up and down and perform temperature difference power generation

摘要

PURPOSE:To obtain a device which moves up and down independently undersea and conducts the exchange of the upper seawater with the lower seawater and temperature difference power generation, by making the device so that it may take in seawater at a deep part and ascend, and may discharge the seawater after temperature difference power generation at a surface part, and then may take in seawater at the surface part reversely and descend, and may discharge the seawater after temperature difference power generation at the deep part, and by repetitive operation. CONSTITUTION:In the case of a device being at deep part, a piston 6 is at a position b, and the device is stationary in balance with the outside. At this time, water of a comparatively high temperature which has been taken in at the surface part, is housed within the device, and valves A10, B11 are closed, and a valve C is opened. Also, power generation is conducted between the inside water and low temperature deep seawater around the device, by means of a temperature difference power generator 2, and an accumulator 5 is charged. The inside water is circulated by using a circulation pump 9 in order to increase the efficiency of heat transmission. In addition, when a temperature difference with the outside becomes small, valves A, B are opened, and the valve C is closed, and the whole inside water is replaced with the outside water. Meanwhile, the piston is lifted to (a) by using part of energy charged, and the balance of floating power is broken, and the dence ascends. Afterwards, the piston is returned to (b) when the device reaches the surface layer, and attains balance with surrounding water.