Solid particle block groove-type solar ejection driven heat-exchange and heat-transmission system

Abstract

The invention aims to provide a solid particle block groove-type solar ejection driven heat-exchange and heat-transmission system. The solid particle block groove-type solar ejection driven heat-exchange and heat-transmission system comprises a solid particle block ejection driven pump and a solar groove-type collection system. The solid particle block ejection driven pump drives solid particle blocks to enter a solar light-heat converter arranged in the focal position of the groove-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 300 DEG C-1000 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 10 DEG C-200 DEG C. The low temperature solid particle blocks are then driven by the solid particle block ejection driven pump to enter the solar light-heat converter, so that high temperature collection, heat transmission, heat exchange and heat storage are achieved. According to the solid particle block groove-type solar ejection driven heat-exchange and heat-transmission system, high temperature, large scale, low cost and high efficiency collection and heat-transmission can be achieved, and the system is suitable for operation at the temperature of 10 DEG C-1500 DEG C.

Description

technical field [0001] The invention relates to utilization of solar thermal energy, in particular to realizing line-focused solar heating, heat transfer and utilization by using solid particles. Background technique [0002] In the field of solar energy, molten salt is used to store heat. 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, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited. [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 trough solar concentrating system, molten salt is usually used for heat transfer, and the solar collection tube usually uses stainless steel as the key light-to-heat converter, and molten salt flows insi...

AI Technical Summary

Problems solved by technology

[0002] In the field of solar energy, molten salt is used to store heat. 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, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited

[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 trough solar concentrating system, molten salt is usually used for heat transfer, and the solar collection tube usually uses stainless steel as the key light-to-heat converter, and molten salt flows inside, but the disadvantages of this structure are obvious, such as energy consumption, toxicity, and safety There are obvious deficiencies in economy

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