초록 ▼

A support bar for a turbine diaphragm that facilitates reduced maintenance cycle time and cost is provided. In one aspect, the support bar is secured to the turbine diaphragm vertically rather than horizontally, allowing access to remove a lower diaphragm half without having to remove the rotor for

A support bar for a turbine diaphragm that facilitates reduced maintenance cycle time and cost is provided. In one aspect, the support bar is secured to the turbine diaphragm vertically rather than horizontally, allowing access to remove a lower diaphragm half without having to remove the rotor for maintenance.

대표청구항 ▼

1. A support bar for a turbine diaphragm, comprising: a vertical body portion having at least one boss extending substantially perpendicular from the vertical body portion, wherein the at least one boss comprises a first boss that extends from an upper end of the vertical body portion and a second b

1. A support bar for a turbine diaphragm, comprising: a vertical body portion having at least one boss extending substantially perpendicular from the vertical body portion, wherein the at least one boss comprises a first boss that extends from an upper end of the vertical body portion and a second boss that extends from near a lower end of the vertical body portion, the first boss separated a predetermined distance apart from the second boss, the first boss and second boss each adapted to mate in a respective slot formed in the turbine diaphragm, the first and second boss each having at least one opening formed therein that extends vertically therethrough, the at least one opening formed in the first boss and second boss each adapted to receive a fastener that extends through both the first boss and the second boss to secure the vertical body portion and both the first boss and the second boss vertically with the turbine diaphragm. 2. The support bar according to claim 1, wherein the first boss is level with respect to a horizontal joint formed between an upper half and a lower half of the diaphragm. 3. The support bar according to claim 1, wherein the fastener comprises a bolt that is complementarily threaded with the at least one opening. 4. The support bar according to claim 3, wherein the bolt threads into the diaphragm. 5. The support bar according to claim 1, wherein the first boss and the second boss each extend a length radially inward from the vertical body portion that is substantially the same. 6. A support bar arrangement for a turbine diaphragm in a turbine casing, the turbine diaphragm having an upper diaphragm half and a lower diaphragm half with at least one slot formed therein, the upper diaphragm half and lower diaphragm half secured together along a horizontal joint, the turbine casing having an upper casing half and a lower casing half having a shoulder formed therein, the upper casing half and lower casing half secured together along a midline, the support bar arrangement comprising: a shim block having a lower surface and a top surface, the lower surface of the shim block seated on the shoulder of the lower casing half;a support bar comprising a vertical body portion having a lower surface seated on the top surface of the shim block and at least one boss extending substantially perpendicular from the vertical body portion, wherein the at least one boss comprises a first boss that extends from an upper end of the vertical body portion and a second boss that extends from near a lower end of the vertical body portion, the first boss separated a predetermined distance apart from the second boss, the first boss and second boss each adapted to mate in a slot formed in the lower diaphragm half, the first and second boss each having at least one support bar opening formed therein; anda support bar fastener that extends through the at least one support bar opening in both the first boss and the second boss to secure the support bar vertically with the lower diaphragm half. 7. The support bar arrangement according to claim 6, wherein the first boss is level with respect to the horizontal joint formed between the upper diaphragm half and the lower diaphragm half. 8. The support arrangement according to claim 6, comprising a torque gap formed in the first boss below a top portion of the support bar fastener. 9. The support bar arrangement according to claim 6, comprising a pry groove formed in between the top portion of the support bar fastener and a surface of the lower diaphragm half. 10. The support bar arrangement according to claim 6, wherein the support bar fastener comprises a bolt that is complementarily threaded with the at least one support bar opening. 11. The support bar arrangement according to claim 10, wherein the bolt threads into the lower diaphragm half. 12. The support bar arrangement according to claim 6, wherein the shim block comprises a shim block opening formed therein and configured for use in vertical adjustment of the turbine diaphragm. 13. The support bar arrangement according to claim 12, further comprising a shim fastener that extends through the shim block opening into the lower casing half securing the shim block thereto. 14. The support bar arrangement according to claim 6, wherein the first boss and the second boss each extend a length radially inward from the vertical body portion that is substantially the same. 15. A steam turbine, comprising: a turbine diaphragm having an upper diaphragm half and a lower diaphragm half with at least one slot formed therein, the upper diaphragm half and lower diaphragm half secured together along a horizontal joint;a turbine casing that houses the turbine diaphragm, the turbine casing having an upper casing half and a lower casing half having a shoulder formed therein, the upper casing half and lower casing half secured together along a midline;a support bar that supports the turbine diaphragm while housed in the turbine casing, the support bar comprising a vertical body portion having at least one boss extending substantially perpendicular from the vertical body portion, wherein the at least one boss comprises a first boss that extends from an upper end of the vertical body portion and a second boss that extends from near a lower end of the vertical body portion, the first boss separated a predetermined distance apart from the second boss, the first boss and second boss each adapted to mate in a slot formed in the lower diaphragm half, the first and second boss each having at least one support bar opening formed therein; anda support bar fastener that extends through the support bar opening in both the first boss and the second boss to secure the support bar vertically with the lower diaphragm half. 16. The steam turbine according to claim 15, further comprising a shim block having a lower surface and a top surface, the lower surface of the shim block seated on the shoulder of the lower casing half and the upper surface of the shim block has the support bar seated thereon. 17. The steam turbine according to claim 15, wherein the at least one support bar fastener comprises a bolt that threads with the at least one support bar opening. 18. The steam turbine according to claim 15, wherein the first boss and the second boss each extend a length radially inward from the vertical body portion that is substantially the same.