Solar hot gas flow generating device

Abstract

The invention relates to a device using solar energy to generate power, in particular to a solar hot gas flow generating device which uses solar energy to enable gas to flow. The solar hot gas flow generating device comprises a heat collecting shed, a flow guiding chimney communicated with the heat collecting shed and a gas flow generator installed in the flow guiding chimney, wherein the heat collecting shed comprises a light-transmitting heat collecting shed which is positioned at the edge of the heat collecting shed and a solar vacuum tube heat collecting module which is connected with the light-transmitting heat collecting shed and is positioned in the middle of the heat collecting shed; olivary flow guiding chambers are uniformly distributed between the heat collecting shed and the ground; the flow guiding chambers and the heat collecting shed are hermetically connected, and the light-transmitting heat collecting shed and the heat collecting module are hermetically connected; and a gas flow generator I is installed in a speed increasing channel formed by the two flow guiding chambers. In the invention, the heat collecting shed comprises a low temperature region and a high temperature region, the speed increasing channel is arranged in the heat collecting shed, solar photovoltaic cells are installed on the heat collecting shed, and the waste heat of the flow guiding chimney is recycled simultaneously, thereby effectively improving the efficiency of the solar hot gas flow generating system, increasing the strength of the heat collecting shed and prolonging the service life of the heat collecting shed.

Description

Technical field [0001] The invention relates to a device for generating electricity using solar energy, in particular to a solar hot air current generating device for using solar energy to make gas flow. Background technique [0002] Since Professor Schlaich of Germany proposed solar chimney power generation technology in 1978, this technology has had a great development. However, according to the solar chimney power plants currently used at home and abroad and some researches, its main disadvantage in technology and structure is that the power generation efficiency is too low, only 1-2%. Among the three factors affecting its power generation efficiency, except heat collection The thermal efficiency of the shed is about 60%, and the mechanical efficiency of the wind turbine generator is about 80%. The chimney efficiency of the heat energy of the air in the heat collecting shed is converted into the kinetic energy of the air in the chimney, which is limited by the height of t...

AI Technical Summary

Problems solved by technology

Although this technology makes use of the wind from the air intake channel of the heat collection shed, the whole system forms two power generation, but because the wind speed will decrease after the first power generation, it will affect the power generation capacity of the generator set placed in the chimney

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