| 发明名称 | Method for operating a recirculating waste heat steam generator | ||
| 摘要 | A method for operating a recirculating waste heat steam generator is provided, in which in a pressure stage of the recirculating waste heat steam generator, the feed water mass flow is guided on the basis of a specified desired value in order to control the water level in a drum. The method should give a recirculating waste heat steam generator a particularly high degree of efficiency and simultaneously a particularly high level of operational flexibility. For this purpose the thermal input introduced into an evaporator of the pressure stage is used as input variable in the determination of the desired value. | ||
| 申请公布号 | US9518481(B2) | 申请公布日期 | 2016.12.13 |
| 申请号 | US201214123418 | 申请日期 | 2012.05.23 |
| 申请人 | Siemens Aktiengesellschaft | 发明人 | Bruckner Jan;Effert Martin;Thomas Frank |
| 分类号 | F22D5/26;F01K23/10;F22B35/02;F22B1/18 | 主分类号 | F22D5/26 |
| 代理机构 | Beusse Wolter Sanks & Maire | 代理人 | Beusse Wolter Sanks & Maire |
| 主权项 | 1. A method for operating a recirculating waste heat steam generator comprising, determining a specified desired value, managing the feedwater mass flow in a pressure stage of the recirculating waste heat steam generator on the basis of the specified desired value in order to control the water level in a drum, wherein the thermal power introduced into an evaporator of the pressure stage is used as an input variable in the determination of the desired value, wherein, in the determination of the thermal power introduced into the evaporator of the pressure stage, a flue gas mass flow and a difference in the specific enthalpy of the flue gas at an inlet and outlet of the evaporator of the pressure stage are used, and wherein, in the determination of the specific enthalpy of the flue gas at the outlet of the evaporator, a saturation temperature of the flow medium is used as an input variable. | ||
| 地址 | Munich DE | ||