Device and method for lifting liquid by means of temperature difference of solar energy

Abstract

The invention relates to a device and method for lifting liquid by means of temperature difference of solar energy. The device for lifting liquid by means of the temperature difference of solar energy comprises a heat colleting and temperature uniformizing device, a transparent cover plate, a waterproof sealing layer, a heat insulation layer, a shell and buoys, wherein the heat colleting and temperature uniformizing device is composed of a heat absorption disc, a temperature uniformizing heat exchange bar, a trapezoid straight rib and a rectangular straight rib. In daytime, a heat absorption disc on the upper portion of the heat colleting and temperature uniformizing device converts solar energy into high-temperature heat energy. Part of the heat energy is transmitted into water in a cavity in the lower portion of the heat absorption disc, so that the water is heated and the temperature of the water rises, and the part of heat energy is stored. The other part of heat energy is directly transmitted to the lower end of the device through the temperature uniformizing heat exchange bar and is used for generating upward flow. At night, the high-temperature hot water stored in the sealed cavity in the lower portion of the round disc transmits the collected high-temperature heat energy collected in daytime to the deep seawater at the lower end of the device, so that the deep seawater is heated continuously to generate upward flow. According to the device and method for lifting liquid by means of the temperature difference of solar energy, solar energy is used for driving the upward flow, and environmental friendliness is achieved.

Description

Technical field [0001] The invention belongs to the field of marine ecological environment restoration and marine fishery, and relates to a temperature difference liquid lifting device using solar energy and a method thereof. Background technique [0002] my country has vast sea areas, numerous offshore fishing grounds, and abundant marine fishery resources. However, in recent years, the coastal ecological environment of our country has deteriorated sharply, and the fishery resources have been seriously declining. The economic fish in some offshore fishing grounds have basically not formed fish news. Therefore, it is urgent to improve the coastal ecological environment and restore and expand marine fishery resources. The key to the natural increase in the production of marine wild fish is to pay attention to the supplementation of seawater nutrients in the light-transmitting layer to improve the environmental conditions of the marine fish food chain. In nature, the natural ocea...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing artificial upwelling devices mainly include the following three types: one is to use the pump to directly suck the bottom seawater to generate upwelling, such as the "Takumi" equipment in Japan. The disadvantage of this type of device is that it consumes a lot of energy and has low efficiency; Underwater gas injection uses bubbles to rise to drive seawater upwelling to generate upwelling. This type of device increases the complexity and instability of the system due to the need to provide an external gas source in the ocean; in addition, an invention patent with application number 201210000180. A device that uses solar energy and wave energy to increase nutrients. The device uses wave energy to transport solar heat to the seabed through fluid working fluid for heat exchange to generate upwelling. Because the device uses wave energy as the power source for heat transfer, One is that the existence of moving mechanisms tends to increase the instability of the system, and the other is that due to the characteristics of solar heat generated intermittently during the day and night, it is difficult for wave energy to match with it in terms of power input and time, which easily causes heat transfer low efficiency problem

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