GEOTHERMAL POWER GENERATION SYSTEM

• Main Authors: TANIHATA KAZUKI, NAGATA KENICHI, NISHIMURA KOICHI, OGINO AKIRA, SHIGEE SEIICHI, MATSUDA MAKOTO, KANBE MASARU
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2016
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINE PLANTS IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; SPRING, WEIGHT, INERTIA OR LIKE MOTORS; STEAM ENGINES; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PROBLEM TO BE SOLVED: To provide a geothermal power generation system in which firstly, occurrences of scale, corrosion and frictional corrosion and the like are restricted and secondly, its facility cost is reduced and its generating efficiency is improved.SOLUTION: A geothermal power generation system of this invention comprises a system for generating power under application of geothermal steam A and a steam prime mover 11 is directly driven by the geothermal steam A. Then, the steam prime mover 11 is composed of a root type or a rotary type, a rotor is assembled into a casing, and no nozzle and no vane are installed. Then, at least an inner surface of the casing and a rotor surface are covered by a protection material and they are processed by lining treatment. The geothermal steam A is supplied to the steam prime mover 11 from a steam well 1 through a steam separator 2. The steam separator 2 separates hot water B from the geothermal steam A supplied from the steam well 1. The steam prime mover 11 is connected to a generator 6 having a main shaft installed while being adjacent to it.SELECTED DRAWING: Figure 1 【課題】第１に、スケール，腐食，磨食等の発生が抑制され、第２に、設備コストが低減されると共に発電効率が向上する、地熱発電システムを提案する。【解決手段】この地熱発電システムは、地熱水蒸気Ａを使用して発電するシステムよりなり、地熱水蒸気Ａにて蒸気原動機１１が直接駆動される。そして、この蒸気原動機１１は、ルーツタイプやロータリータイプよりなり、ケーシング内にロータが組み込まれており、ノズルや羽根を備えていない。そして、少なくともケーシング内面およびロータ表面が、保護材料にて被覆されライニング処理されている。地熱水蒸気Ａは、蒸気井１から気水分離器２を経由して、蒸気原動機１１に給気される。気水分離器２は、蒸気井１から供給された地熱水蒸気Ａから、熱水Ｂを分離する。蒸気原動機１１は、主軸が隣接付設された発電機６に連結されている。【選択図】図１