ON-LINE CLEANING METHOD OF TURBINE HOT GAS PASSAGE DEPOSITS BY PRESSURE PULSATION

Title:

ON-LINE CLEANING METHOD OF TURBINE HOT GAS PASSAGE DEPOSITS BY PRESSURE PULSATION

Document Type and Number:

Japanese Patent JP2010261438

Kind Code:

A

Abstract:

To provide a method for removing hot gas deposits (18) from a system (10) by pressure pulses.

The method includes steps of: adjusting flow of mixture of detonation fluid (36) and oxidant (38) to an expansion chamber (30), and generating detonation within the expansion chamber (30) by igniting mixture of the detonation fluid (36) and the oxidant (38) in the expansion chamber (30), and generating a high-pressure wave. While the system (10) is performing combustion operation, a high-pressure wave propagating at supersonic speed along a fluid passage of the system (10) removes hot gas deposits (18) within fluid passage, and the expansion chamber (30) directs the high-pressure wave toward the fluid passage of the system (10).

Inventors:

MYERS GEOFFREY DAVID
HUGHES MICHAEL JOHN
VIJ ATUL KUMAR

Application Number:

JP2010098351A

Publication Date:

November 18, 2010

Filing Date:

April 22, 2010

Export Citation:

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Assignee:

GEN ELECTRIC

International Classes:

F01D25/00; F02C5/12; F02C6/04; F02C7/00

Domestic Patent References:

JP2008261621A	2008-10-30
JP2005186061A	2005-07-14
JPS62162822A	1987-07-18
JP2008261621A	2008-10-30

Attorney, Agent or Firm:

Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa

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