Patent ID: 9702541
Date: 2017-07-11
CPC Classifications: F01K,F03G,F22B,F22G,F24S,F28D,Y02E

Claim:
1. A solar power system comprising: a heat collection apparatus which collects sunlight to heat water; a steam turbine; a power generator which generates electric power with motive power of the steam turbine; a superheated steam supply line which supplies the steam turbine with superheated steam generated by the heat collection apparatus; a water supply line which condenses the steam expelled from the steam turbine into water and supplies the condensed water to the heat collection apparatus; a heat storage device which has a heat storage medium; a first line which branches from the superheated steam supply line and which supplies the heat storage device with the superheated steam flowing through the superheated steam supply line; a second line which branches from the water supply line and which supplies the heat storage device with the water flowing through the water supply line; and a third line which supplies the steam turbine with superheated steam generated by the heat storage device; wherein: the heat storage device stores the heat of the superheated steam which has flowed through the first line in the heat storage medium, and heats the water which has flowed through the second line with the heat storage medium to generate superheated steam; the heat collection apparatus includes a low temperature heat collection device which heats water to generate steam and a high temperature heat collection device which further heats the steam heated by the low temperature heat collection device to generate superheated steam; a steam-water separation device is provided between the low temperature heat collection device and the high temperature heat collection device; a fourth line is provided to return water separated by the steam-water separation device to the water supply line; a fifth line is provided to supply the steam-water separation device with the steam which has flowed from the first line into the heat storage device and whose heat has been released to the heat storage medium in the heat storage device; the solar power system further comprises a temperature detector which detects the temperature of the superheated steam flowing through the first line; a spray valve provided in the first line which adjusts the temperature of the superheated steam flowing through the first line and flowing into the heat storage device by spraying water directly to the superheated steam; and a first control device which controls action of the spray valve; and the first control device adjusts a valve opening degree of the spray valve based on a detection signal of the temperature detector so that the temperature of the superheated steam flowing through the first line can be kept lower than a temperature which can cause deterioration of the heat storage medium.