Recent State of High Temperature High Pressure Steam Turbine

1959 ◽  
Vol 62 (481) ◽  
pp. 193-203
Author(s):  
Hideo NAWANO
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Steam Turbine ◽  
High Pressure Steam ◽  
Pressure Steam ◽  
High Temperature High Pressure

Creep Deformation of High Pressure Steam Turbine Part

2015 ◽  
Vol 732 ◽  
pp. 187-190
Author(s):  
František Straka ◽  
Pavel Albl ◽  
Pavel Pánek
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Steam Turbine ◽  
Creep Deformation ◽  
Steam Turbines ◽  
High Pressure Turbine ◽  
High Pressure Steam ◽  
Pressure Steam ◽  
Temperature Levels ◽  
Steam Parameters

Steam turbines are complex rotating machines working at high pressure and high temperature levels. Their high-pressure parts, which are subjected to the highest steam parameters, are most affected by these conditions and may suffer from creep deformation. Permanent changes in geometry become visible in high-pressure turbine casings when they are disassembled after certain time in operation.

The Care and Maintenance of High-Temperature, High-Pressure Pipework Systems

1994 ◽  
Vol 208 (2) ◽  
pp. 115-122
Author(s):  
C Hoskins
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Support Systems ◽  
Detailed Examination ◽  
High Pressure Steam ◽  
Power Stations ◽  
Early Implementation ◽  
Pressure Steam ◽  
High System ◽  
High Temperature High Pressure

This paper describes the routine inspections carried out on the high-temperature, high-pressure steam pipework associated with large electricity generating units owned by PowerGen. The early implementation of the Pressure Systems and Transportable Gas Container Regulations, 1989, has allowed power stations more flexibility to set intervals between outages for inspection compared to the fixed intervals required under the Factories Act, 1961. Part of these inspections includes a detailed examination of high-temperature, high- pressure steam pipework welds and support systems. The method of inspection and analysis carried out to contain the risk of failure at welds due to high system stresses is described in the paper. Details are also included of how pipework flexibility analyses have been used to redesign some systems that have exhibited significant problems.

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