Steam turbine gland seal control system

Details Steam turbine gland seal control system Steam turbine gland seal control system

1984-06-05

1985-09-17

Husar, Stephen F.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60657, 60676, F01K 1302

Patent

active

045412472

ABSTRACT:
A high pressure steam turbine having a sealing gland where the turbine rotor penetrates the casing of the turbine. Under certain conditions the gland is sealed by an auxiliary steam supply, and under other conditions the gland is self sealed by turbine inlet steam. A control system is provided to modify the temperature of the auxiliary steam to be more compatible with the self sealing steam, so as to eliminate thermal shock to the turbine rotor.

REFERENCES:
patent: 3062553 (1962-11-01), Juzi
patent: 4282708 (1981-08-01), Kuribayashi et al.

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