UNDERGROUND WATER HEAT EXCHANGE SYSTEM, CONSTRUCTION METHOD OF UNDERGROUND WATER HEAT EXCHANGE SYSTEM AND UNDERGROUND WATER HEAT EXCHANGE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a new technology capable of further efficiently using ground heat of underground water, by eliminating a defect by a conventional vertical well and a horizontal well requiring a wide site.;SOLUTION: This underground water heat exchange system 1 is formed so that a single cylindrical casing 2 forming a water communication area part 21 on the lower end side, is vertically driven up to an underground water bearing layer WB; a partition wall body 31 is arranged for separating the cylinder inside of the water communication area part 21 into a pipe inside upper space 22 and an pipe inside lower end part space; an injection pipe 3 opening in the pipe inside lower end part space 23 is introduced from an aboveground side opening; a pumping pipe 4 incorporated with a submerged pump 41 capable of pumping up the underground water W of the pipe inside upper space 22, is introduced from the aboveground side opening; and mutual respective aboveground side end parts of these pumping pipe 4 and injection pipe 3 are connected in an insulating shape from an external part by a connecting pipe 51 incorporated with a heat exchanger 5.;COPYRIGHT: (C)2008,JPO&INPIT