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Water feedback in vertical forced-flow steam generators

A technology of steam generator and forced circulation, applied in the direction of steam generation, forced flow type steam boiler, steam boiler, etc., can solve problems such as high water consumption and achieve the effect of reducing water consumption

Active Publication Date: 2019-11-19
西门子能源全球有限两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, the operating disadvantage of vertical BENSON waste heat steam generators is a significantly higher water consumption, which is caused by a significantly greater water discharge (blowdown) during start-up

Method used

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  • Water feedback in vertical forced-flow steam generators
  • Water feedback in vertical forced-flow steam generators
  • Water feedback in vertical forced-flow steam generators

Examples

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Embodiment Construction

[0023] figure 1 Schematically and exemplarily shown a device for starting a vertical forced circulation steam generator with a feed water preheater 1 , by means of a feed water pump 7 via a feed water delivery line 8 , feed water can be supplied as working fluid to the feed water preheater; and evaporator 2; and water separation system 3. All that is required to implement the device according to the invention is to separate the separator 4 from the water bottle 5 in the water separation system 3 . exist figure 2 A technically less advantageous solution with a common container for separator and bottle is shown in .

[0024] exist figure 1 In an embodiment of the present invention, the lower end 17 of the separator 4 is clearly higher than the joining point 10 in the evaporator 2 , for example higher than the inflow collector 20 . A short outflow from the separator 4 to the evaporator 2 is thus made possible. The outflow takes place from the working medium outlet 11 via th...

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PUM

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Abstract

The invention relates to a method for starting a vertical forced-flow steam generator in a waste-heat steam generator, wherein feed water is fed to the forced-flow steam generator as working fluid, and there flows firstly through a feed-water preheater (1) and then through an evaporator (2) and is at least partly evaporated, wherein the partly evaporated working fluid is fed to a water separationsystem (3), in which non-evaporated working fluid is separated from evaporated working fluid and is collected, in which at least part of the non-evaporated working fluid is fed geodetically to the evaporator and, beginning from a certain quantity of accumulating non-evaporated working fluid, a remaining part is automatically removed from the water separation system (3). The invention further relates to a corresponding device for starting a vertical forced-flow steam generator.

Description

technical field [0001] The invention relates to a method for starting a vertical forced circulation steam generator in a waste heat steam generator and a device for starting a forced circulation steam generator in a waste heat steam generator. Background technique [0002] Waste heat steam generators with forced circulation evaporators are known as so-called horizontal (with horizontal flue gas ducts) and vertical (with vertical flue gas ducts) BENSON waste heat steam generators. An embodiment with vertical flue gas ducts has a cost advantage over a horizontal construction. Accordingly, the operating disadvantage of vertical BENSON waste heat steam generators is a significantly higher water consumption, which is caused by a significantly greater water discharge (blowdown) during start-up. Contents of the invention [0003] It is therefore the object of the present invention to propose a method for starting a vertical forced circulation steam generator in a waste heat stea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B29/12F22B35/10F22B35/14F01K13/02F22B29/06
CPCF01K13/02F22B29/062F22B29/12F22B35/10F22B35/14F22B29/06F22B35/007F22B35/102F22D1/003F22B37/26
Inventor 扬·布吕克纳马丁·埃费特
Owner 西门子能源全球有限两合公司
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