Trip manifold assembly for turbine systems

Patent metadata

Field	Value
Publication number	US-9896962-B2
Application number	US-201414194261-A
Country	US
Kind code	B2
Filing date	Feb 28, 2014
Priority date	Feb 28, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A system includes a trip manifold assembly (TMA). The TMA includes a plurality of block valves configured to receive a flow of fluid from a hydraulic power unit (HPU), and a plurality of solenoid valves configured to admit the flow of fluid to actuate the plurality of block valves, a plurality of dump valves, and a plurality of relay valves of the TMA. The plurality of solenoid valves is configured to admit a respective portion of the flow of fluid. The plurality of dump valves is configured to depressurize a trip header of the TMA as an output to operate a plurality of stop valves coupled to a turbine system. The TMA is configured to regulate the flow of fluid to control the operation of the plurality of stop valves as a mechanism to interrupt an operation of the turbine system.

First claim

The invention claimed is:

1. A system, comprising:
a trip manifold assembly (TMA), comprising:
a plurality of block and bleed valves configured to receive a flow of fluid from a hydraulic power unit (HPU), wherein the plurality of block and bleed valves are disposed so as to provide for at least three parallel output flow streams; and
a plurality of solenoid valves configured to admit the flow of fluid to actuate the plurality of block and bleed valves, a plurality of dump valves, and a plurality of relay valves of the TMA, wherein each of the plurality of solenoid valves is configured to admit a respective portion of the flow of fluid, wherein the plurality of solenoid valves are arranged in three groups of two solenoid valves per group so that each of the three groups enables a redundant flow control over a different one of the three parallel output flow streams such that when one stream of the three parallel output flow streams depressurizes, at least one other stream of the three parallel output flow streams maintains pressurization, and wherein the plurality of dump valves is configured to depressurize a trip header of the TMA as an output to operate a plurality of stop valves coupled to a turbine system;

wherein the TMA is configured to regulate the flow of fluid to control the operation of the plurality of stop valves as a mechanism to interrupt an operation of the turbine system.

2. The system of claim 1 , wherein the two solenoid valves per group are configured to admit the flow of fluid in parallel, to provide for redundant solenoid valve operations.

3. The system of claim 1 , wherein the TMA is configured to operate at a pressure of at least one of less than 200 pounds per square inch gauge (psig), less than 100 psig, less than 90 psig, less than 85 psig, less than 80 psig, less than 75 psig, less than 70 psig, less than 65 psig, or less than 60 psig.

4. The system of claim 1 , wherein the TMA is configured to operate at a pressure greater than at least one of 800 pounds per square inch gauge (psig), greater than 1000 psig, greater than 2000 psig, greater than 2100 psig, greater than 2200 psig, greater than 2300 psig, or greater than 2400 psig.

5. The system of claim 1 , wherein the TMA is configurable to operate in a block and bleed (BB) configuration, in which the plurality of block and bleed valves is configured to block a fluid supply path during the interruption of the operation of the turbine system.

6. The system of claim 1 , wherein the TMA is configured to reduce a response time in which the turbine system is interrupted.

7. The system of claim 1 , comprising the turbine system, a generator system, or a combination thereof, communicatively coupled to the TMA.

8. The system of claim 7 , wherein the the TMA is configured to operate according to a triple modular redundant (TMR) functionality, wherein the TMA is configured to regulate the flow of fluid to control the operation of the turbine system, the generator system, or the combination thereof, via only a first group and a second group of the three groups of the plurality of solenoid valves, or via the first group, the second group, and a third group of the three groups of the plurality of solenoid valves.

9. A system, comprising:
a plurality of stop valves coupled to a turbine system;
a hydraulic power unit (HPU) configured to deliver a flow of fluid to the plurality of stop valves to regulate the turbine system; and
a trip manifold assembly (TMA) communicatively coupled to the plurality of stop valves and the HPU, comprising:
a plurality of block and bleed valves configured to receive the flow of fluid from the HPU, wherein the plurality of block and bleed valves are disposed so as to provide for at least three parallel output flow streams;
a plurality of solenoid valves configured to admit the flow of fluid to actuate the plurality of block and bleed valves, a plurality of dump valves, and a plurality of relay valves of the TMA, wherein the plurality of solenoid valves are arranged in three groups of two solenoid valves per group so that each of the three groups enables a flow control over a different one of the three parallel output flow streams such that when one stream of the three parallel output flow streams depressurizes, at least one other stream of the three parallel output flow streams maintains pressurization, and wherein the plurality of relay valves is respectively coupled to each of the plurality of solenoid valves, wherein the plurality of dump valves is respectively coupled to each of the plurality of solenoid valves and each of the plurality of relay valves, and wherein the plurality of dump valves is configured to depressurize a trip header of the TMA as an output to operate the plurality of stop valves to interrupt an operation of the turbine system.

10. The system of claim 9 , wherein the plurality of block and bleed valves, the plurality of solenoid valves, the plurality of dump valves, and the plurality of relay valves are configured to increase flow capacity.

11. The system of claim 9 , wherein the plurality of block and bleed valves, the plurality of solenoid valves, the plurality of dump valves, and the plurality of relay valves are configured to increase contamination tolerance.

12. The system of claim 9 , wherein the plurality of block and bleed valves, the plurality of solenoid valves, the plurality of dump valves, and the plurality of relay valves are configured to reduce a response time in which the turbine system is interrupted.

13. The system of claim 9 , comprising a controller communicatively coupled to the TMA, wherein the controller is configured to generate a signal to activate or deactivate the plurality of solenoid valves to interrupt the operation of the turbine system.

14. The system of claim 9 , wherein each of the plurality of block and bleed valves, the plurality of solenoid valves, the plurality of dump valves, and the plurality of relay valves comprises a plurality of poppet style valves.

15. The system of claim 9 , wherein the TMA is configured to operate within a pressure range between 75 pounds per square inch gauge (psig) to 2700 psig.

Assignees

• Gen Electric

Inventors

• Wojick Troy Gilchrist
• Stack Ricardo
• Lisowski Joe
• Bradford Chris

Classifications

• F01D21/18 Primary

  involving hydraulic means · CPC title

• Y10T137/87917

  Flow path with serial valves and/or closures · CPC title