EBULLITION WATER TYPE GEOTHERMAL EXCHANGER AND EBULLITION WATER TYPE GEOTHERMAL POWER GENERATOR

摘要

PROBLEM TO BE SOLVED: To provide an ebullition water type geothermal exchanger and an ebullition water type geothermal power generator in which heat exchanging between high temperature steam to be discharged and water to be fed or underground low temperature region can be restricted as much as possible and weights of their pipings can be made light.SOLUTION: A geothermal exchanger 1 comprises a water intrusion pipe 2 installed in the underground and supplied with water from the ground and a steam discharging pipe 3 installed in the underground to be contacted with the water intrusion pipe 2. The steam discharging pipe 3 is provided with a plurality of exhaust nozzles 5 in its lower region and pressure in the steam discharging pipe 3 is reduced to such an approximate pressure required by a turbine 6. The steam discharging pipe 3 is formed in such a way that a diameter of the steam discharging pipe 3 is formed to be decreased from a lower part of the geothermal region toward the upper part of the ground. Water supplied to the water intrusion pipe 2 is supplied with heat from the geothermal region 4, becomes high temperature pressure water, is discharged out of the exhaust nozzles 5 under atomized state into the steam discharging pipe 3, converted into steam single-phase flow and then a power generator 7 generates power.SELECTED DRAWING: Figure 1