摘要:
The invention concerns a steam turbine (1) comprising a steam-inlet region (2), an exhaust steam region (3) and a blading region (4) which is disposed axially therebetween and is surrounded by a turbine housing (5). Further provided is a cooling fluid inlet (7) which can be closed and opened by a closure member (8) and through which the cooling fluid (6) can be introduced into the turbine housing (5). The introduced cooling fluid (6) can be discharged from the turbine housing (5) again via a suction device (10) for drawing off cooling fluid (6). The invention further concerns a steam turbine plant (20), and a method of cooling a steam turbine (1).
摘要:
A combined plant including a gas turbine (5), a steam turbine (8) and a waste heat recovery boiler (13) using exhaust gases of the gas turbine as a heat source for producing steam serving as a drive source of the steam turbine further Includes an ancillary steam source (30) separate from and independent of the waste heat recovery boiler. At the time of startup of the plant, steam from the ancillary steam source is introduced into the steam turbine until the conditions for feeding air to the waste heat recovery boiler are set, to thereby avoid overheating of the steam turbine due to a windage loss.
摘要:
The invention relates to a method for heating up a steam turbine (2) or for keeping a steam turbine (2) hot, which steam turbine has at least one pressure stage (4) working at an initial pressure or intermediate pressure, at least one final pressure stage (5) which is fluidically connected downstream of the pressure stage (4) and works at a final pressure which is lower than the initial pressure or intermediate pressure, and at least one condenser (6) which is connected downstream of the final pressure stage (5), wherein steam generated outside the steam turbine (2) is introduced into the pressure stage (4), characterized in that, after flowing through the pressure stage (4) and bypassing the final pressure stage (5), the steam is supplied directly to the condenser (6).
摘要:
The invention relates to a steam-turbine unit (1) comprising a steam turbine (6) and an option for cooling said steam turbine by means of forced cooling, whereby cooling air is drawn through the steam turbine (6) via a suction device (11) and a drainage line (32) of the live-steam valve is used as the access option.
摘要:
Eine Dampfturbine (1) umfassend ein Innengehäuse (3) und ein Außengehäuse (2), wobei ein Zwischenraum (6) zwischen dem Innengehäuse (3) und dem Außengehäuse (2) ausgebildet ist und in diesen Zwischenraum (6) kalter Sperrdampf zugeführt wird, um ein Buckeln des Außengehäuses (2) zu vermeiden.
摘要:
A steam injection gas turbine engine having a once-through steam generator (OTSG). A condenser is provided downstream of the OTSG to capture water and is protected from hot flue gasses during startup by a bypass circuit. Optionally, heating the exhaust downstream of the condenser using coolant taken from an intercooler provides plume suppression.
摘要:
A turbine plant (1) is provided with a steam bleed valve (10) regulated to send steam towards a user (6), and with a system (13) for cooling a turbine section (3) arranged downstream of the steam bleed valve (10), in order to avoid excessive heating due to a ventilating effect; such system (13) exploits the heat generated by a closed cooling circuit of auxiliary units (21) to generate cooling steam in a vacuum line (22) upstream of the turbine section (3) to be cooled; such cooling steam is integrated by other cooling steam which is let through a regulation valve (17) arranged in parallel to the steam bleed valve (10).
摘要:
The invention concerns a steam turbine (1) comprising an inner chamber (3), through which active steam (2) can flow, and a condenser (4) for condensing the active steam (2). The condenser (4) is connected to the inner chamber (3) via a cooling steam pipe (5). The cooling steam pipe (5) can be blocked by a shut-off member (6) which opens as a function of the differential steam pressure between the condenser (4) and inner chamber (3). The invention further concerns a method of cooling a steam turbine (1) in ventilating mode.