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Installation of molten-metal seals in steam-turbine valves

Sozaev, A. S. / Fomchenko, O. F. / Lygin, Yu. A. / Remizov, D. V.

Abstract Gaps in valves between the stems and boxes are a source of rather large steam and heat losses in power-generating steam turbines. A unique development of specialists employed by the Vserossiiskii Teplotekhnicheskii Institut — superairtight seals (SAS) with composite materials, which permit reliable sealing of valves with minimal friction within the system—is presented. Investigations conducted have indicated that the proposed type of SAS is capable of sealing gaps in valves with steam parameters of 29.75 MPa (300 kgf/cm2) and 600°C.

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Installation of molten-metal seals in steam-turbine valves

Sozaev, A. S. / Fomchenko, O. F. / Lygin, Yu. A. / Remizov, D. V.

Abstract Gaps in valves between the stems and boxes are a source of rather large steam and heat losses in power-generating steam turbines. A unique development of specialists employed by the Vserossiiskii Teplotekhnicheskii Institut — superairtight seals (SAS) with composite materials, which permit reliable sealing of valves with minimal friction within the system—is presented. Investigations conducted have indicated that the proposed type of SAS is capable of sealing gaps in valves with steam parameters of 29.75 MPa (300 kgf/cm2) and 600°C.

Installation of molten-metal seals in steam-turbine valves

Sozaev, A. S. / Fomchenko, O. F. / Lygin, Yu. A. / Remizov, D. V.

Abstract Gaps in valves between the stems and boxes are a source of rather large steam and heat losses in power-generating steam turbines. A unique development of specialists employed by the Vserossiiskii Teplotekhnicheskii Institut — superairtight seals (SAS) with composite materials, which permit reliable sealing of valves with minimal friction within the system—is presented. Investigations conducted have indicated that the proposed type of SAS is capable of sealing gaps in valves with steam parameters of 29.75 MPa (300 kgf/cm2) and 600°C.

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Title:

Installation of molten-metal seals in steam-turbine valves

Contributors:

Sozaev, A. S. (author) / Fomchenko, O. F. (author) / Lygin, Yu. A. (author) / Remizov, D. V. (author)

Published in:

Power Technology and Engineering ; 41 ; 102-104

Publication date:

2007-03-01

Size:

3 pages

ISSN:

1570-1468 , 1570-145X

DOI:

https://doi.org/10.1007/s10749-007-0022-3

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

steam turbine , steam losses , valves , superairtight seals Engineering , Power Engineering , Electrical Power Generation and Transmission , Renewable Energy Sources , Structural Foundations, Hydraulic Engineering

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