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Method for cooling turbomachine and turbomachine for applicating the same method

A technology for cooling turbines and turbines, which is applied to the cooling of engines, gas turbine devices, machines/engines, etc., and can solve the problems of stopping the cooling effect and increasing the cost of separate pipelines, etc.

Inactive Publication Date: 2004-09-08
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technical solution is that it increases the cost of a separate pipeline
Furthermore, due to the direct dependence on the steam boiler, the design dimensions of the cold steam system depend on the steam boiler parameters, and a failure of the cold steam supply simultaneously results in a cessation of the cooling effect

Method used

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  • Method for cooling turbomachine and turbomachine for applicating the same method
  • Method for cooling turbomachine and turbomachine for applicating the same method

Examples

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Embodiment Construction

[0019] FIG. 1 shows a turbine 1 . The turbine 1 has a housing 2 . An inner housing 3 is arranged such that a shaft 4 can rotate in said inner housing 3 . The inner housing 3 has guide vanes 5 . The shaft 4 then has rotor blades 6 . A heat exchanger 8 is installed in the waste steam region 7 . The heat exchanger 8 also does not necessarily have to be arranged in the exhaust steam region of the turbine 1 .

[0020] The live steam is fed from a steam boiler (not shown) via the live steam supply line 9 to the turbine 1 . At the split point 10 a part of the live steam is led to the heat exchanger 8 . The temperature of the fresh steam can reach 565° C. and the pressure can reach 250 bar before being diverted at the split point 10. The remaining live steam, ie the live steam not directed to the heat exchanger 8 , enters the turbine 1 via a line 11 . At this point, the live steam reaches the live steam inflow region 12 , and the flow medium flows from the live steam inflow reg...

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Abstract

A turbo-engine (TE) (1) has a fresh steam supply (FSS) (9), an admission area (17), a casing (2) and a waste steam area (7). During operation, a flowing medium flows through the turbo-engine and leaves in the waste steam area. Cooled by a heat-exchanger (8) prior to entry into the TE, part of the flowing medium from the FSS is directed towards a thrust compensating piston (19). An Independent claim is also included for a turbo-engine with a fresh steam supply with a direct-flow medium.

Description

technical field [0001] The invention relates to a method for cooling thermally loaded regions in a turbine having a live steam feed line, an inflow region, a housing and a waste steam region, as well as a turbine for carrying out the method, wherein , during operating mode a flow medium flows through the turbine and exits in the exhaust steam region. Background technique [0002] In turbine construction, especially in steam turbine construction, it is necessary to cool areas subjected to high thermal loads with steam whose temperature is lower than that of the live steam at the live steam pressure. The live vapor pressure is the pressure of a flow medium which can enter the inflow region of the turbine. The live steam temperature corresponds to the temperature that a flow medium has at the inlet to the turbine. [0003] Cold steam with the above-mentioned characteristic values ​​of temperature and pressure cannot be provided by the turbine itself in current turbines. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D3/04F01D25/12F01D25/32F02C7/18
CPCF01D3/04F02C7/185F05D2260/2322F05B2260/233
Inventor 迈克尔·戴斯勒马丁·G·杜韦勒尤维·霍夫斯塔特奥利弗·米希尤维·赞德
Owner SIEMENS AG
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