Solar heat storage and high temperature gas generating system with working medium being flowing sand

Abstract

A solar heat storage and high temperature gas generating system comprises a sun-tracking light concentrating device ( 1 ), a heat storage tank ( 2 ) and a heat exchange device ( 3 ), with the working medium being flowing sand ( 5 ). The flowing sand ( 5 ) is heated by the sun-tracking light concentrating device ( 1 ), and is transported into the heat storage tank ( 2 ). The flowing sand ( 5 ) is exported from the heat storage tank ( 2 ) steadily, thereby transferring heat to the high pressure gas or liquid ( 6 ) which is to be heated in the heat exchange device ( 3 ) and generating high temperature and pressure gas. The system has the advantages of good heat storage effect, large heat storage volume, high heat exchange efficiency and low operation cost.

1 - 52 . (canceled) 
     
     
         53 . A solar thermal energy storage and high-temperature gas generation system comprises:
 a sun tracking concentrating device, a heat storage tank, and a heat exchanging device with as a medium of flowing sand;   the heat exchanging device exchanges heat between the flowing sand and a gas or a liquid;   the medium is heated through the sun tracking concentrating device, and then transported to the heat storage tank, where the heat energy is stored; then the medium is outputted steadily from the heat storage tank, transferring heat to gas or liquid to be heated through the heat exchanging device, so as to generate high temperature and high pressure gas.