METHOD AND PUMP FOR IMPELLING WATER IN WATERS

摘要

A method for impelling water in e.g. a lake by with a pump transforming the waves of the lake into whirling water which is sent down towards the bottom of the water area. The pump comprises a horizontally extending whirl pipe with a longitudinal slot and at least one preferably curvedly extending baffle with a top front edge mainly facing a wave front in the lake in operation and a bottom rear edge extending along the slot. Both ends of the whirl pipe are fluid-connected to a submersible pipe extending down towards the bottom of the water area. The pump is simple and reliable as it functions without movable parts. The pump can without costs for external energy take surface water high in oxygen and atmospheric air down to enrich "dead" bottom water low in oxygen. At the same time the pump can advantageously be used for removing undesired constituents such as superfluous biomass from the lake and add desired additives such as lime to this.