Title:
METHOD FOR MEASURING PRESSURE WITHIN COMBUSTION DEVICE OF GAS TURBINE AND DEVICE FOR MEASURING PRESSURE WITHIN IT
Document Type and Number:
Japanese Patent JP3459280
Kind Code:
B2
Abstract:
PURPOSE: To prevent a pressure sensor from having troubles by high temperature and further to enable a pressure within a gas turbine combustion device to be accurately measured.
CONSTITUTION: A tip of a pressure guide pipe 12 is inserted into an inner cylinder 14 of a combustion device through an outer cylinder 11 of the combustion device. A pressure sensor 15 is fixed to a base end of the pressure guiding pipe 12 through an elbow 13 acting as a fixing part. Since the pressure sensor 15 is placed outside the gas turbine combustion device, it is possible to prevent the pressure sensor 15 from having troubles at a high temperature. An attenuation pipe 14 is fixed to the elbow 13 and a frequency characteristic at a certain part is made flat in its amplitude. A sensing characteristic of this flat amplitude covers a combustion vibration frequency. After an output of the pressure sensor 15 is amplified by an amplifier 16, only the combustion vibration component is passed through a bandpass filter 17. With such an arrangement as above, it is possible to perform an accurate measurement of the pressure within the gas turbine combustion device.
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Inventors:
Katsunori Ide
Application Number:
JP11750193A
Publication Date:
October 20, 2003
Filing Date:
May 20, 1993
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
F02B77/08; F02C7/00; F23R3/00; G01L23/26; G01M15/00; G01M15/04; (IPC1-7): F23R3/00; F02B77/08; F02C7/00; G01L23/26
Domestic Patent References:
| JP6147484A | ||||
| JP418335U |
Attorney, Agent or Firm:
Hisano Hatano (1 person outside)