Trap seal for open circuit liquid cooled turbines

Patent · Tue Dec 30 04:00:00 EST 1980

OSTI ID:6479275

Germain, M R; Grondahl, C M

An improved trap seal for open circuit liquid cooled turbines is disclosed. The trap seal of the present invention includes an annular recess formed in the supply conduit of cooling channels formed in the airfoil of the turbine buckets. A cylindrical insert is located in the annular recesses and has a plurality of axial grooves formed along the outer periphery thereof and a central recess formed in one end thereof. The axial grooves and central recess formed in the cylindrical insert cooperate with the annular recess to define a plurality of s-shaped trap seals which permit the passage of liquid coolant but prohibit passage of gaseous coolant.

• Assignee: General Electric Co
• Patent Number(s): US 4242045
• OSTI ID: 6479275
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200101* -- Fossil-Fueled Power Plants-- Cooling & Heat Transfer Equipment & Systems
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
COOLANTS
COOLING SYSTEMS
ENERGY SYSTEMS
FLUIDS
GAS TURBINES
LIQUIDS
MACHINERY
PIPES
SEALS
TURBINES
TURBOMACHINERY