Accumulator arrangement for storing thermal energy bounded in water, has pipe line, pumps and switching valves controlled together in opposite conveying directions to supply storage medium from accumulator areas to other areas

摘要

The arrangement has accumulators (1, 2) possessing accumulator areas (1u, 2u) in a low energy level and accumulator areas (1o, 2o) in a high energy level. The areas are connected together via pipe lines (10, 22) for reloading a fluid storage medium i.e. water. The pipe line (10), pumps (13, 13`, 14, 14`) and switching valves (16`, 18) are controlled together in opposite conveying directions for supplying the fluid storage medium from the accumulator areas (1o, 1u) to the accumulator areas (2o, 2u). An independent claim is also included for a method for reloading heat energy bounded in a fluid storage medium.