Solar energy electricity power station bearing type air thermal absorber

Abstract

The invention relates to a pressure bearing type air heat absorber used for a solar power station, consisting of a silicon carbide foamed ceramics heat receiver (2), a pressure bearing air cavity (3), an air flow channel (4) and an insulating layer (7), wherein, the silicon carbide foamed ceramics heat receiver (2) and the outer wall surface of the pressure bearing air cavity (3) are integrally formed or contacted with each other closely; the pressure bearing air cavity (3) is made of compact silicon carbide ceramics and filled with silicon carbide foamed ceramics; the air flow channel (4) consists of gaps between the inner wall surface of the pressure bearing air cavity (3) and the silicon carbide foamed ceramics filling the pressure bearing air cavity (3); the silicon carbide foamed ceramics and the inner wall surface of the pressure bearing air cavity (3) are formed integrally or contacted with each other closely; and the insulating layer (7) is coated on partial outer surface of the silicon carbide foamed ceramics heat receiver (2) and the outer surface of the pressure bearing air cavity (3) which is not connected with the silicon carbide foamed ceramics heat receiver (2). The pressure bearing type air heat absorber can obtain high-pressure high-temperature air with the temperature range between 700 and 1300 DEG C and the pressure more than 1 MPa, and simultaneously stores heat by utilizing the self sensible heat.

Description

technical field [0001] The invention relates to an air heat absorber for a solar thermal power station, in particular to a silicon carbide foam ceramic pressure-bearing air heat absorber. Background technique [0002] Solar energy is an inexhaustible renewable energy source. Today, as fossil fuels are decreasing year by year and the international energy situation is becoming increasingly severe, the development and utilization of solar energy is one of the important ways to realize the diversification of energy supply and ensure energy security. The basic principle of the tower thermal power generation device is to use many heliostats to reflect solar radiation to the solar receiver placed on the tower, and generate superheated steam or high-temperature air with the help of heating medium to drive the generator set to generate electricity. The high temperature solar heat absorber is the core component of the tower thermal power generation system. Many studies have been carr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of complex structure, high temperature and limited use of large capacity caused by the need to install sealed glass windows in the existing pressurized air heat absorber, and provide a silicon carbide foam ceramic and dense silicon carbide ceramic Integrated Solar Air Heater

Images