Turbomachine diaphragm ring with packing retainment apparatus

A turbomachine diaphragm comprising:

• a packing having a dovetail section including a first key slot;
• and
• a diaphragm ring coupled with the packing, the diaphragm ring including:
• a packing slot sized to house the dovetail section of the packing;
• a second key slot connected with the packing slot and sized to house a portion of a key member, the second key slot extending at least one of radially or axially from the packing slot;
• and
• a retaining slot connected with the second key slot and extending substantially circumferentially from the second key slot, the retaining slot sized to house a retaining member for retaining the key member.

A turbomachine packing comprising:

• a main body;
• a seal section extending axially inward from the main body and including a plurality of seal teeth;
• and
• a dovetail section extending axially outward from the main body, the dovetail section including:
• a pair of axially extending flanges;
• and
• a key slot within at least one of the pair of axially extending flanges, the key slot sized to receive a key member,
• wherein the main body, the seal section and the dovetail section have a common horizontal joint surface, and wherein the key slot is offset from the horizontal joint surface.