| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress a temperature rise of a reheater by relaxing a limit on an operation range of a boiler and a limit on a supply amount of steam for processing in comparison with a conventional case, in supplying the steam for processing from a boiler having the reheater to factory equipment. <P>SOLUTION: This steam supply system 5 including a steam supplying system 3 for supplying the steam for processing from boiler turbine power generating equipment 1 to the factory equipment 2, and a control device 4, further includes a mixing system 51 for mixing the steam to a reheated steam system 14 of the boiler 10, and the steam supplying system 3 includes a steam extraction pipe 40 for extracting a part of the steam generated from the boiler 10, and a steam extraction valve 41. The gas mixing system 51 includes a mixing pipe 60 connected to an upstream side with respect to an inlet of the reheater 24 in a low temperature reheated steam pipe 50 connecting the reheater 24 and a low pressure turbine 27, and a mixing valve 62. The control device 4 controls an opening of the mixing valve 62 when the temperature of the reheater 24 rises, to control the mixing amount so that the temperature rise of the reheater is kept within a predetermined range. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
