Digital data acquisition system for manitoring and remote testing of gas and steam turbine performance parameters

• US 20020177978A1
• Filed: 04/16/2001
• Published: 11/28/2002
• Est. Priority Date: 04/16/2001
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Obenhoff, Ryan E., Dahler, Steven E.
• Application Number:
  US09/835,108
• Publication Number:
  US 20020177978A1
• Time in Patent Office: Days
• US Class Current: 702/188
• CPC Class Codes: G07C 3/08 Registering or indicating the production of the machine either with or without registering working or idle time

Abstract

A digital data acquisition system for monitoring and remote testing of gas and steam turbine performance parameters which is light weight, portable and can be quickly installed and configured. The system comprises a set of instrumentation modules, each containing digital transmitters, connected to a local computer for data processing and storage. The modules are linked together into a local digital network by a universal cable connection which reduces the number of unique parts used in conventional systems. The modules are also connected to a computer to process the digital signals and collect testing data. Once installed, remote performance testing and data acquisition is enabled by connecting the computer to a remote computer via a network or modem connection. Remote testing eliminates the need for the test engineer to travel to a site. Testing data may be made available for remote access by customers or other interested parties.

Claims

1. A digital data acquisition system for monitoring and remote testing of turbine performance parameters, said system comprising:

a digital transmitter to be in contact with a corresponding pressure transducer; and

an instrumentation module including a housing for containing said digital transmitter therein, said module adapted to be connected to a computer for data collection.

2. The system of claim 1 comprising a plurality of said digital transmitters housed in said module and wired to a module keyway connector.

3. The system of claim 2 further comprising a module key connector.

4. The system of claim 3 comprising a plurality of said modules each containing at least one of said digital transmitters, said modules connected together by a cable connecting corresponding ones of said module key connectors to said module keyway connectors.

5. The system of claim 4 further comprising a power supply module having a module keyway connector and module key connector, said power supply module connected to one of said modules by a cable connecting said power supply module key connector to the module keyway connector of said one of said modules.

6. The system of claim 5 wherein a chain of said modules are connected to each other and terminated at one end by a terminating cap and at another end by a cable connecting said chain of modules to a computer for data acquisition.

7. The system of claim 6 wherein said computer has connectivity to another network.

8. The system of claim 1 wherein a chain of said modules are connected to each other and terminated at one end by a terminating cap and at another end by a cable connecting said chain of modules to a computer for data acquisition.

9. The system of claim 8 wherein said computer has connectivity to another network.

10. A digital data acquisition system for monitoring and remote testing of turbine performance parameters, said system comprising:

a plurality of digital transmitters each adapted to be in contact with a corresponding pressure transducer;

a plurality of instrumentation modules connected together by cables, each said module including a housing for containing some of said digital transmitters therein and each said module adapted to be connected to a computer for digital signal processing and data collection;

a power supply module connected to one of said modules by a cable; and

wherein said computer is adapted to be connected to another network.

11. The system of claim 10 wherein each instrumentation module comprises a module output connector and a module input connector.

13. The method of claim 12 further comprising the step of collecting testing data from the transmitters in a data storage device.

14. The method of claim 13 further comprising the step of downloading the testing data upon completion of the thermal performance testing.

15. The method of claim 14 further comprising the step of correlating the testing data into a usable format.

16. The method of claim 15 further comprising the step of providing secure access to the testing data via the network to a remote user.

17. The method of claim 16 further comprising the step of enabling input from the remote user via the network.

19. The system of claim 18 wherein said connectors each comprise a pair of power leads, a twisted data pair of leads and a drain lead.

12. A method for remote thermal performance testing of a gas or steam turbine, said method comprising the steps of:

providing an array of digital transmitters in contact with corresponding pressure transducers with probes arranged in various locations in the turbine;

connecting the digital transmitters together and to a local computer;

connecting the local computer to a network; and

conducting thermal performance testing from a remote computer connected to the network.

18. A digital data acquisition system for monitoring and remote testing of turbine performance parameters, said system comprising:

a plurality of instrumentation modules each comprising a housing and a pair of functionally equivalent electrical connectors for transmitting power and data;

at least one digital transmitter mounted in each of said modules, said transmitter electrically coupled to said connectors;

a power supply module comprising a pair of functionally equivalent electrical connectors; and

said instrumentation modules and said power supply module connected together and to a computer, said computer adapted for digital signal processing and test data collection.

20. An instrumentation module for a digital data acquisition system for monitoring and remote testing of turbine performance parameters, said module comprising:

a weather-tight housing;

a pair of functionally equivalent electrical connectors in said housing; and

at least one digital transmitter disposed in said housing and electrically coupled to said connectors.

21. The module of claim 20 wherein one of said connectors is a key connector.

22. The module of claim 20 wherein one of said connectors is a keyway connector.

23. The module of claim 20 wherein each of said connectors comprises a pair of power leads, a twisted data pair of leads and a drain lead.