Rotor support thermal control system
Systems for thermally regulating portions of a steam turbine are disclosed. In one embodiment, a thermal control system for a rotor bearing support includes: a housing fluidly connected to an inlet and adapted to substantially enclose the rotor bearing support, the housing defining a first annular cavity adapted to receive a fluid from the inlet; and an outlet fluidly connected to the housing, the outlet adapted to receive the fluid from the annular cavity.
1. A thermal control system for rotor bearing supports, the thermal control system comprising:
a housing fluidly connected to an inlet and adapted to substantially enclose a first rotor bearing support, the housing defining a first annular cavity adapted to receive a fluid from the inlet;
an outlet fluidly connected to the housing, the outlet adapted to receive the fluid from the annular cavity;
a second rotor bearing support positioned axially upstream of the first rotor bearing support;
a sensor connected to the second rotor bearing support, the sensor adapted to monitor a condition of the second rotor bearing support; and
a fluid system connected to the sensor and adapted to supply the fluid to the inlet, the fluid system adapted to adjust a temperature of the fluid based upon the condition of the second rotor bearing support.
2. The thermal control system of claim 1 , wherein the fluid system is fluidly connected to the inlet.
3. The thermal control system of claim 1 , wherein the housing further defines a second annular cavity fluidly connected to the first annular cavity.
4. The thermal control system of claim 1 , wherein the housing is adapted to enclose the rotor bearing support.
5. The thermal control system of claim 1 , wherein the fluid is selected from a group consisting of: condensate, lube oil, steam, or water.
6. A steam turbine comprising:
a stator;
a rotor enclosed within the stator;
a set of rotor bearings connected to the rotor;
a first rotor bearing support connected to a first portion of the set of rotor bearings;
a second rotor bearing support positioned axially upstream of the first rotor bearing support and connected to a second portion of the set of rotor bearings; and
a thermal control system connected to the set of rotor bearing supports, the thermal control system comprising:
an inlet;
a housing fluidly connected to the inlet and adapted to substantially enclose the first rotor bearing support, the housing defining a first annular cavity adapted to receive a fluid from the inlet;
an outlet fluidly connected to the housing, the outlet adapted to receive the fluid from the annular cavity;
a sensor connected to the second rotor bearing support, the sensor adapted to monitor a condition of the second rotor bearing support; and
a fluid system connected to the sensor and adapted to supply the fluid to the inlet, the fluid system adapted to adjust a temperature of the fluid based upon the condition of the second rotor bearing support.
7. The steam turbine of claim 6 , wherein the fluid system is fluidly connected to the inlet.
8. The steam turbine of claim 6 , wherein the housing further defines a second annular cavity fluidly connected to the first annular cavity.
9. The steam turbine of claim 6 , wherein the fluid is selected from a group consisting of: condensate, lube oil, steam, or water.
10. A power generation system comprising:
a generator;
a steam turbine operatively connected to the generator;
a rotor disposed within the steam turbine;
a set of rotor bearings connected to the rotor;
a first rotor bearing support connected to a first portion of the set of rotor bearings;
a second rotor bearing support positioned axially upstream of the first rotor bearing support and connected to a second portion of the set of rotor bearings; and
a thermal control system connected to the set of rotor bearing supports, the thermal control system comprising:
an inlet;
a housing fluidly connected to the inlet and adapted to substantially enclose the first rotor bearing support, the housing defining a first annular cavity adapted to receive a fluid from the inlet;
an outlet fluidly connected to the housing, the outlet adapted to receive the fluid from the annular cavity;
a sensor connected to the second rotor bearing support, the sensor adapted to monitor a condition of the second rotor bearing support; and
a fluid system connected to the sensor and adapted to supply the fluid to the inlet, the fluid system adapted to adjust a temperature of the fluid based upon the condition of the second rotor bearing support.
11. The power generation system of claim 10 , wherein the fluid system is fluidly connected to the inlet.
12. The power generation system of claim 10 , wherein the housing further defines a second annular cavity fluidly connected to the first annular cavity.
13. The power generation system of claim 10 , wherein the fluid is selected from a group consisting of: condensate, lube oil, steam, or water.
14. The thermal control system of claim 1 , wherein the fluid control system adjusts the temperature of the fluid such that a growth of the first rotor bearing support is substantially equal to a growth of the second rotor bearing support.
15. The steam turbine of claim 6 , wherein the fluid control system adjusts the temperature of the fluid such that a growth of the first rotor bearing support is substantially equal to a growth of the second rotor bearing support.
16. The power generation system of claim 10 , wherein the fluid control system adjusts the temperature of the fluid such that a growth of the first rotor bearing support is substantially equal to a growth of the second rotor bearing support.