-
公开(公告)号：US09140143B2
公开(公告)日：2015-09-22
申请号：US13668224
申请日：2012-11-03
Applicant: ALSTOM Technology Ltd
Inventor： Volker Schule , Julia Heintz , Stephan Hellweg
Abstract: A method for operating a steam power plant at low load is suggested comprising the extraction of live steam LS before the last superheater SH3 and/or resuperheated steam before the last resuperheater RSH2 and using the thermal energy of this steam in other heat sinks. Thus, nearly constant steam parameters of the live steam LS are achieved and the overall efficiency of the steam power plant remains at a high level.
Abstract translation: 建议在低负荷下运行蒸汽动力装置的方法包括在最后的过热器SH3之前提取活蒸汽LS和/或在最后的再加热器RSH2之前提供再热过的蒸汽，并且在其它散热器中使用该蒸汽的热能。 因此，实现了蒸汽LS的几乎恒定的蒸汽参数，并且蒸汽发电厂的整体效率保持在高水平。
-
公开(公告)号：US10196939B2
公开(公告)日：2019-02-05
申请号：US14807216
申请日：2015-07-23
Applicant: ALSTOM Technology Ltd
Inventor： Volker Schüle , Stephan Hellweg , Reinhard Leithner , Niels Brinkmeier
Abstract: The once-through boiler includes a water supply and at least an economizer, an evaporator superheater. No valves are provided between the economizer, the evaporator and the superheater. The high-pressure turbine includes a control valve. The method for low load operation of a power plant with a once-through boiler and a high pressure turbine includes providing a parameter indicative of the stable operation of the once-through boiler in once-through operation, and on the basis of this parameter adjusting the control valve in order to regulate the pressure within the economizer and evaporator and/or adjusting the temperature of the water supplied to the economizer.
-
公开(公告)号：US09617874B2
公开(公告)日：2017-04-11
申请号：US13919259
申请日：2013-06-17
Applicant: ALSTOM Technology Ltd
Inventor： Stephan Hellweg , Volker Schüle , Manfred Bauer
Abstract: In a system for effecting pressure control in a thermal power plant operated at low load connected fluidly in series, a relief conduit is disclosed herein. The relief conduit selectively transfers steam from a cold reheat conduit to the second extraction conduit. The plant further includes a boiler, a high-pressure turbine, an intermediate pressure turbine, a low pressure turbine, a main steam conduit for feeding steam from the boiler to an inlet of the high pressure turbine, a cold reheat conduit for feeding steam from an outlet of the high-pressure turbine through a reheat flow path in the boiler, and a first and second high pressure heaters. A first extraction conduit connects the cold reheat conduit to a first high pressure heater to transfer heat, and a second extraction conduit connects the intermediate pressure turbine to the second high pressure heater, to transfer heat.
-
4.发明申请公开(公告)号：US20160032784A1
公开(公告)日：2016-02-04
申请号：US14807216
申请日：2015-07-23
Applicant: ALSTOM Technology Ltd
Inventor： Volker SCHÜLE , Stephan Hellweg , Reinhard LEITHNER , Niels BRINKMEIER
Abstract: The once-through boiler includes a water supply and at least an economizer, an evaporator superheater. No valves are provided between the economizer, the evaporator and the superheater. The high-pressure turbine includes a control valve. The method for low load operation of a power plant with a once-through boiler and a high pressure turbine includes providing a parameter indicative of the stable operation of the once-through boiler in once-through operation, and on the basis of this parameter adjusting the control valve in order to regulate the pressure within the economizer and evaporator and/or adjusting the temperature of the water supplied to the economizer.
Abstract translation: 直流式锅炉包括供水装置和至少节能器，蒸发器过热器。 在节能器，蒸发器和过热器之间没有设置阀。 高压涡轮机包括控制阀。 具有直流锅炉和高压汽轮机的发电厂的低负荷运行方法包括提供一次性运行中指示一次性锅炉的稳定运行的参数，并且基于该参数调整 控制阀，以便调节节能器和蒸发器内的压力和/或调节供应给节能器的水的温度。
-
-
-
Search Results
4
records
(took 0.011 seconds)
