A water injection system positioned about a combustor of a gas turbine engine. The water injection system may include a water manifold and a pressure relief system in communication with the water manifold. The pressure relief system may include a relief vent positioned on a pressure relief line.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic view of a gas turbine engine as is described herein.
FIG. 2 is a schematic view of a water injection system for use with the gas turbine engine of FIG. 1.
Claims
1. A water injection system positioned about a combustor of a gas turbine engine, comprising:
a water manifold; anda pressure relief system in communication with the water manifold;the pressure relief system comprising a relief vent positioned on a pressure relief line.
2. The water injection system of claim 1, wherein the pressure relief system comprises a pressure transducer positioned on the pressure relief line.
3. The water injection system of claim 1, wherein the pressure relief system comprises an orifice plate.
4. The water injection system of claim 1, wherein the relief valve comprises a solenoid valve.
5. The water injection system of claim 1, wherein the pressure relief system comprises a drain.
6. The water injection system of claim 1, wherein the pressure relief line comprises a position about a top of the water manifold.
7. The water injection system of claim 1, wherein the pressure relief line comprises a position adjacent to the water manifold so as to reduce the volume of trapped air therein.
8. The water injection system of claim 1, further comprising an incoming water source in communication with the water manifold.
9. The water injection system of claim 8, wherein the incoming water source comprises a water skid.
10. The water injection system of claim 8, wherein the incoming water source comprises a stop valve assembly.
11. The water injection system of claim 1, further comprising a backflow prevention valve positioned between the water manifold and the combustor.
12. A method for relieving the water pressure within a water manifold positioned about a combustor of a gas turbine during a load rejection, comprising:
closing a stop valve assembly on an incoming water source in communication with the water manifold; opening a relief valve on a pressure relief line in communication with the water manifold; anddraining the water within the water manifold via the pressure relief line.
13. The method of claim 12, wherein the relief valve is open before the stop valve assembly is completely closed.
14. The method of claim 12, wherein opening the relief valve prevents water from being injected into the combustor.
15. The method of claim 12, wherein opening the relief valve further purges the pressure relief line of trapped air.
16. A water injection system positioned about a combustor of a gas turbine engine, comprising:
a water manifold;an incoming water source in communication with the water manifold;the incoming water source comprising a stop valve;a pressure relief system in communication with the water manifold;the pressure relief system comprising a relief vent and a pressure transducer positioned on a pressure relief line.
17. The water injection system of claim 16, wherein the pressure relief system comprises an orifice plate.
18. The water injection system of claim 16, wherein the relief valve comprises a solenoid valve.
19. The water injection system of claim 16, wherein the pressure relief line comprises a position about a top of the water manifold.
20. The water injection system of claim 16, wherein the pressure relief line comprises a position adjacent to the manifold so as to reduce the volume of trapped air therein.
Patent Application
20070151253
