Solar heat boiler and solar heat electric power generation plant

摘要

[Problem] To provide a solar heat boiler which can be obtained without increasing facility cost and construction cost and in which damage to a heat transfer pipe can be avoided. [Solution] A solar heat boiler is characterized by comprising: a low-temperature heating device (13) for heating water by solar heat, the water being supplied from a water supply pump (11); a steam-water separation device (4) for separating two-phase fluid of water and steam into water and steam, the two-phase fluid of water and steam having been generated by the low-temperature heating device (13); a high-temperature heating device (14) for heating the steam by the solar heat, the steam having been separated by the steam-water separation device (4); and a circulation pump (15) for supplying the water to the low-temperature heating device (13), the water having been separated by the steam-water separation device (4).