Sand and gravel energy storage power generation system

Abstract

The present invention relates to the technical field of power generation systems, specifically sand and gravel material energy storage power generation system, which includes a storage bin for storing sand and gravel arranged in sequence from top to bottom, an energy conversion power generation device that converts the gravitational potential energy of the sand and gravel falling from the storage bin into electrical energy, A collection bin for collecting fallen sand and gravel. A return conveying device is connected between the collection bin and the storage bin to transport the sand and gravel in the collection bin back to the storage bin. A discharge port is opened at the bottom of the storage bin. The invention uses sand and gravel as energy storage and power generation medium, and sand and gravel are the most extensive natural resources on the earth as energy storage and power generation resources on the earth. They are inexhaustible, cheap and easy to develop, and are not restricted by geographical conditions. Restrictions, as long as the sand source and stone source are sufficient, it can be used in conjunction with wind power generation and solar power generation to solve the energy storage problem of wind power generation and solar power generation; from a chemical point of view, sand and gravel are solid, and the quality Large, low activity, easy storage.

Description

Technical field: [0001] The invention relates to the technical field of power generation systems, in particular to a sand and gravel energy storage power generation system. Background technique: [0002] Power generation refers to the production process of converting water energy, thermal energy of petrochemical fuels (coal, oil, natural gas), nuclear energy, solar energy, wind energy, geothermal energy, ocean energy, etc. The needs of people's lives. According to the type of energy, the power generation system is divided into thermal power system, hydroelectric power system, nuclear power system and other energy power generation power systems. [0003] Common small power generation devices mostly use fuel such as gasoline or diesel as the power source. The purpose is to drive the generator to generate electricity through the combustion of fuel. Using fuel oil as the power source for power generation can generate a large amount of electric energy in a short period of time,...

AI Technical Summary

Problems solved by technology

Using fuel oil as the power source for power generation can generate a large amount of electric energy in a short period of time, but after burning fuel oil, it is easy to generate exhaust gas and easily cause air pollution. At the same time, as the production capacity of crude oil decreases, the cost of fuel oil also increases. Huge fuel costs must be borne when using the power generating unit described

[0004] Furthermore, although small-scale wind power generation devices or solar power generation devices can be used to generate electricity, the efficiency of power generation is mainly determined by the weather of the described power generation devices. Solar energy can't be stored in an environmentally friendly way

[0005] Pumped storage power generation device is currently the most mature energy storage power generation equipment. It converts the gravitational potential energy of water into electric energy for power generation. However, it is limited by geographical, geological, and topographical conditions and cannot be used in areas that do not meet these conditions.

From a chemical point of view, water is a liquid and is prone to drying up. It is difficult for the pumped storage power generation device to work during the dry season.

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