BINARY POWER GENERATING SYSTEM AND BINARY POWER GENERATING METHOD

PROBLEM TO BE SOLVED: To provide a binary power generating system and a binary power generating method capable of reducing an adhesion of scale when fluid such as spring water or the like containing dissolution composition is utilized as being kept in liquid at an indirect heat exchanger.SOLUTION: A binary power generating system 1 comprises a first fluid line L1 of a heat source for use in communicating first fluid containing dissolution composition; a second fluid circulation line L3 for use in communicating second fluid having a less amount of dissolution composition than that of the first fluid; an indirect heat exchanger 3 arranged at the first fluid line L1 and the second fluid circulation line L3 so as to perform a heat exchanging operation between the first fluid and the second fluid; a binary power generating device 4 connected to the second fluid circulation line L3 to generate power by working medium receiving heat from the first fluid through the indirect heat exchanger 3 and the second fluid and evaporated; and a scale removing device 20 arranged at a higher upstream side than the indirect heat exchanger 3 at the first fluid line L1 to enable the first fluid to pass.SELECTED DRAWING: Figure 1 【課題】間接熱交換器において温泉水等の溶解成分を含む流体を液体のまま利用する場合に、スケールの付着を低減することができるバイナリ発電システムおよびバイナリ発電方法を提供する。【解決手段】バイナリ発電システム１は、熱源であって溶解成分を含む第１流体を流通させるための第１流体ラインＬ１と、第１流体よりも溶解成分の少ない第２流体を流通させるための第２流体循環ラインＬ３と、第１流体ラインＬ１および第２流体循環ラインＬ３に設けられ、第１流体と第２流体との間で熱交換を行うための間接熱交換器３と、第２流体循環ラインＬ３に接続され、第１流体から間接熱交換器３および第２流体を介して熱を受け取り蒸発した作動媒体によって発電を行うバイナリ発電装置４と、第１流体ラインＬ１の間接熱交換器３よりも上流側に設けられ、第１流体を通過させることができるスケール除去装置２０と、を備える。【選択図】図１