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A steam power station, especially a steam power station of a power plant used for generating at least electric power, and corresponding steam power station

一种蒸汽动力、发电站的技术，应用在蒸汽动力装置，能够解决加长蒸汽动力装置启动时间、不再利用、环境污染等问题，达到启动时间缩短、减轻负担、简单方式的效果

Inactive Publication Date: 2007-10-31
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main disadvantage of the existing technology is that instead of returning the high-cost deionized water to the water cycle, it is discharged into the surrounding environment in the form of wastewater and is no longer used.
Therefore, the cost of deionized water is very high for traditional steam power plants especially in the case of frequent shutdowns and startups
In addition, the large discharge of wastewater has also caused a large degree of environmental pollution
The deionized water supplied is high in oxygen and carbon dioxide, requiring degassing of the deionized water, which increases the start-up time of the steam power unit

Method used

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  • A steam power station, especially a steam power station of a power plant used for generating at least electric power, and corresponding steam power station

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Embodiment Construction

[0018] Figure 1 shows a first embodiment of a steam power plant 2 according to the invention. The steam power plant 2 is a component of a power plant 1 which can also be designed, for example, as a combined gas and steam turbine power plant. The steam power plant 2 has a steam turbine 4 with three different pressure zones in the exemplary embodiment shown. In addition, the steam power plant 2 in the illustrated embodiment also has a water circuit, which mainly includes a steam turbine 4, a condenser 6, a condensate pump 7 and three pressure stages 8, 9, 10, the three pressure Each stage is assigned to each pressure zone of the steam turbine 4. The water circuit also includes a feed water pump not shown in the figure. The pressure stages 8 , 9 , 10 are respectively connected to the pressure zones of the steam turbine 4 via steam lines 11 . In the exemplary embodiment shown, the pressure stages 8 , 9 , 10 are divided into a first pressure stage 8 embodied as a high-pressure s...

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Abstract

The invention relates to a method for operating a steam power station (2) and a power plant (1) as well as a corresponding steam power station (2). According to the invention, essentially all of the water that is drained from at least one pressure stage (8, 9, 10) of the steam power station (2) is collected, stored, and recirculated into the water circuit of the steam power station (2).

Description

technical field [0001] The invention relates to a method of operating a steam power plant, in particular a method of operating a power plant for at least generating electrical energy and having a steam power plant comprising a steam power plant with at least one pressure stage water circulation and, if necessary, drain the water circulation or pressure stage. The power plant has at least one generator which can be driven by the steam power plant. Furthermore, the invention relates to a steam power plant for generating at least electrical energy and for carrying out the method according to the invention. Background technique [0002] Such steam power plants generally comprise one or more circulating steam generators with multiple pressuredrums and associated heating surfaces. In particular, steam can be generated in different pressure stages by means of a cyclic steam generator, which can be supplied to a steam turbine or the relevant pressure stages of the steam turbine. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K23/10
CPCF01K21/06F01K23/106F01K13/00F01K23/10
Inventor 迈克尔·舍特勒安贾·沃尔曼雷纳·伍尔夫
Owner SIEMENS AG
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