Solid particle block tower-type solar pulse driven heat-exchange and heat-transmission system

Abstract

The invention aims to provide a solid particle block tower-type solar heating and heat-transmission system. The solid particle block tower-type solar heating and heat-transmission system comprises a solid particle block pulse driven pump and a solar tower-type collection system. The solid particle block pulse driven pump drives solid particle blocks to enter a solar light-heat converter arranged in the focal position of the tower-type collection system along an ascending pipeline of the solid particle blocks. The hot solid particle blocks converted through the solar light-heat converter enable the temperature of the solid particle blocks to reach 600 DEG C-1200 DEG C, then the solid particle blocks enter a regenerative heat exchanger along a descending pipeline, and heat exchange is conducted between the regenerative heat exchanger and a working medium used for generating power, so that the temperature of the solid particle blocks is lowered to be 100 DEG C-400 DEG C. The low temperature solid particle blocks enter a loading box along a connecting pipeline and then are driven by the solid particle block pulse driven pump to enter the solar light-heat converter, so that circulation of the solid particle blocks in a sealed circulating pipeline through driving of the solid particle block pulse driven pump is achieved, and high temperature collection, heat transmission, heat exchange and heat storage are achieved.

Description

technical field [0001] The invention relates to utilization of solar heat energy, in particular to tower type solar heating, heat transfer and utilization using solid grain blocks. Background technique [0002] In the field of solar energy, molten salt is used for heat storage and heat transfer. Although molten salt can achieve high-temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, the toxicity, economy, and safety of molten salt are also high. There are problems whereby the use of molten salt heat storage is limited. At the same time, its heat transfer temperature is usually not higher than 600 degrees, and no heat transfer can be achieved for higher temperatures. [0003] In the field of solar energy, air or other gases are also used for heat storage, but their thermal fusion is small, and large-scale thermal energy storage cannot be realized. [0004] For the tower solar concentrating system, ...

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Problems solved by technology

[0002] In the field of solar energy, molten salt is used for heat storage and heat transfer. Although molten salt can achieve high-temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, the toxicity, economy, and safety of molten salt are also high. There are problems that limit the use of molten salt heat storage

At the same time, its heat transfer temperature is usually not higher than 600 degrees, and no matter how high the temperature is, heat transfer cannot be achieved.

[0003] In the field of solar energy, air or other gases are also used for heat storage, but its thermal fusion is small, and large-scale thermal energy storage cannot be realized

[0004] For the tower solar concentrating system, molten salt is usually used for heat transfer, but due to the limitation of molten salt temperature, it can only provide a temperature of 600 degrees. In order to achieve high temperature, air is used for heat transfer. However, the heat capacity of air is very small, so it is difficult transfer large amounts of heat

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