Sound damper for evaporation channels in steam power plants with air condensers

Inactive Publication Date: 2015-03-19
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a steam turbine unit that has a safer and cost-effective design. It uses a waste steam duct to connect the steam turbine and the condenser, and a silencer is used to damp the sound emissions. The silencers are connected to the waste steam duct through a simple and efficient construction process. The technical effect is a better design for steam turbine units that reduces sound emissions and provides safety for components.

Problems solved by technology

It is further known that turbomachines, such as the steam turbines, produce relatively high pressure emissions and / or sound emissions which, in addition to vibrations and structure-relevant malfunctions, can also lead to (noise) disturbance in the surroundings of the turbomachine.
This can lead to high noise load or noise pollution in the surroundings of the power plant, for example in residential areas adjacent to the steam power plant.
In particular, low-frequency noise is also experienced as an unpleasant rumbling.
If the sound emissions of the steam power plant exceed sound protection limit values, this can in the worst case lead to the steam power plant losing its operating permit.
Low-frequency sound, as can be observed in the waste steam ducts, also has the disadvantage that it cannot be effectively blocked or damped by means of insulation, for example on the waste steam duct.
This can lead to damage to components.

Method used

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  • Sound damper for evaporation channels in steam power plants with air condensers
  • Sound damper for evaporation channels in steam power plants with air condensers
  • Sound damper for evaporation channels in steam power plants with air condensers

Examples

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Embodiment Construction

[0067]FIG. 1 shows a water / steam circuit 18 of a coal-fired steam power plant 100 with a steam turbine unit 1 consisting of a steam turbine 22 and a condenser 11 connected to the steam turbine 22 via waste steam ducts 24.

[0068]In this coal-fired power plant 100, in the following simply steam power plant 100 for short, according to a conventional coal firing, lignite or hard coal is ground and dried in a coal mill. This coal is then blown into a combustion chamber 16 for a dust firing facility, where it is completely burnt 17.

[0069]Heat thus released is taken up by a water-tube boiler, steam generator 20 for short, and converts fed-in (feed) water 5 into steam / high-pressure steam 6. The high-pressure steam 6 generated in the steam generator 20 enters the high-pressure section 7 of the steam turbine 22, where it performs mechanical work as it expands and cools.

[0070]After leaving the high-pressure section 7, the high-pressure steam 6 flows via a crossover line 23 into the two-flow low...

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Abstract

A steam turbine unit, in particular for a steam power plant, comprising a steam turbine and a condenser connected to the steam turbine via an evaporation channel is provided. According to the following, a sound damper, particularly a low-frequency sound damper, is acoustically coupled to the evaporation channel.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to PCT Application No. PCT / EP2013 / 058087, having a filing date of Apr. 18, 2013, based off of DE 102012207176.8 having a filing date of Apr. 30, 2012, the entire contents of which are hereby incorporated by reference.FIELD OF TECHNOLOGY[0002]The following relates to a steam turbine unit, in particular for a steam power plant, having a steam turbine and a condenser which is connected to the steam turbine via a waste steam duct.BACKGROUND[0003]Steam power plants, otherwise known as thermal power plants, are extensively known, for example from http: / / de.wikipedia.org / wiki / Dampfkraftwerk (retrieved Apr. 20, 2012).[0004]A steam power plant is a type of power plant for generating electricity from fossil fuels, in which thermal energy from steam is converted into kinetic energy in a steam turbine and is further converted into electrical energy in a generator.[0005]In such a steam power plant, the steam required f...

Claims

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Application Information

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IPC IPC(8): F01D25/30F28B9/02F01K9/00
CPCF01D25/30F28B9/02F01K9/003F01K7/16F05D2260/96F28B1/02F28F2265/28
InventorMINUTH, STEPHAN
OwnerSIEMENS AG