초록 ▼

An arrangement for effecting an energy exchange between earth soil and an energy exchanger, and including a soil heat exchanger, and supply and return flow conduits for connecting the soil heat exchanger with the energy heat exchanger, with the soil heat exchanger having a thermoinsulated supply pip

An arrangement for effecting an energy exchange between earth soil and an energy exchanger, and including a soil heat exchanger, and supply and return flow conduits for connecting the soil heat exchanger with the energy heat exchanger, with the soil heat exchanger having a thermoinsulated supply pipe arranged in a borehole formed in ground, a pump provided at an end of the flow duct, a shroud pipe surrounding the flow duct and the pump and having a section with a reduced inner cross-sectional area located beneath the pump and provided with a plurality of lateral inlet openings, and a return flow region for return water located radially outwardly of the shroud pipe and including return flow pipe means, connectable with the return flow conduit, and a porous filling, the return flow region communicating, in the vicinity of a borehole bottom, with an interior of the shroud pipe through the lateral inlet openings provided in the shroud pipe section with a reduced inner cross-sectional area.

대표청구항 ▼

[ What is claimed is:] [1.] An arrangement for effecting an energy exchange between earth soil and an energy exchanger, the arrangement comprising:a soil heat exchanger; andsupply and return flow conduits for connecting the soil heat exchanger with the energy exchanger,wherein the soil heat exchange

[ What is claimed is:] [1.] An arrangement for effecting an energy exchange between earth soil and an energy exchanger, the arrangement comprising:a soil heat exchanger; andsupply and return flow conduits for connecting the soil heat exchanger with the energy exchanger,wherein the soil heat exchanger comprises:a thermoinsulated supply flow duct arranged in a borehole formed in ground;a pump provided at an end of the flow duct;a shroud pipe surrounding the flow duct and the pump and having a section with a reduced inner cross-sectional area located beneath the pump and provided with a plurality of lateral inlet openings; anda return flow region for return water located radially outwardly of the shroud pipe and including return flow pipe means, connectable with the return flow conduit, and a porous filling, the return flow region communicating, in a vicinity of a borehole bottom, with an interior of the shroud pipe through the lateral inlet openings provided in the shroud pipe section with the reduced inner cross-sectional area.