| 摘要 |
The offered high-temperature GAES is designed as a stabilising element in high-power electric energy systems to ensure qualitative, economical and reliable functioning of these systems. It relates to energy accumulation equipment in which the extra electric energy is converted by means of an electrically-driven compressor (4, 6) into the air compression heat and pressure energies accumulated in the underground heat accumulator (14) and, by means of the air turbine (18, 19) and the turbogenerator (21), converted back, if necessary, into electric energy. The offered GAES (Fig. 1) is characterised by the fact that its high-temperature (to 700<°>C) heat accumulator (14) is formed in vertically closed, porous aquiferous underground collector stratum (collector aquifer) (15) which is a compressed air storage at the same time ensuring stability of the air pressure, temperature and moisture in conformity with preset parameters of operation of the underground heat accumulator (14). Several embodiments of the invention are offered, such as: an underground water accumulator for cooling the compressor heat formed in the collector aquifer (15), a friction heat regeneration system, high-temperature thermos-like pressure ducts, a method of the pressure duct embodiment in a powerful inlet rock. The GAES can be created on a collector strata foundation, 150-700 m deep, with a 90% efficiency coefficient and very great energy capacity (in 2 billion m<3> a collector aquifer (sand, gravel) - 207 GW.h). |
