| 摘要 |
A steam plant 10 comprises a boiler 18 arranged to generate steam and a reverse osmosis unit 14. In use the reverse osmosis unit receives inflow water through an inlet 46 and generates permeate which is provided to the boiler through a permeate line 60. The steam plant also comprises a blowdown vessel 20 in fluid communication with the boiler so as to receive hot blowdown water from the boiler and a blowdown vessel outlet 84 which is in fluid communication with the reverse osmosis inlet through a blowdown return line 98, wherein in use the blowdown vessel generates cooled blowdown water. A flow controller 86 has a temperature sensor arranged to monitor the temperature of the cooled blowdown water. In use, if the temperature of the cooled blowdown water is below a threshold then the flow controller operates to direct the cooled blowdown water to the reverse osmosis inlet. There is also disclosed a method of operating a steam plant and a method of upgrading an existing steam plant. |
