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Title:
METHOD FOR PURGING FUEL CHANNEL, PURGING DEVICE FOR EXECUTING SAID METHOD, AND GAS TURBINE INSTALLATION PROVIDED WITH SAID DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/186611
Kind Code:
A1
Abstract:
 A water supply step (S1) for supplying water to a liquid-fuel channel of a nozzle is executed during a liquid fuel supply state (Mo) in which only liquid fuel is supplied to the nozzle, a post-switch water-purging step (S3) for supplying water to the liquid-fuel channel of the nozzle is executed during a gas fuel supply state (Mg) in which only gas fuel is supplied to the nozzle, and a mid-switch water-purging step (S2) for supplying water to the liquid-fuel channel of the nozzle is executed during a fuel switching state (Mc) which is a state of transitioning from the liquid fuel supply state (Mo) to the gas fuel supply state (Mg). A second flow rate (w2) of water supplied in the mid-switch water-purging step (S2) is less than a first flow rate (w1) of water supplied in the water supply step (S1). In the post-switch water-purging step (S3), water is temporarily supplied at a third flow rate (w3) which is greater than the second flow rate (w2).

Inventors:
NAKAHARA Hisashi (3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2015/065463
Publication Date:
December 10, 2015
Filing Date:
May 28, 2015
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-Chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F02C7/232; F02C7/22; F02C9/40; F23D17/00; F23K5/18; F23R3/28; F23R3/36
Foreign References:
JP2013231415A2013-11-14
JP2013504004A2013-02-04
JP2001059427A2001-03-06
JPH11324715A1999-11-26
JP2007327338A2007-12-20
Attorney, Agent or Firm:
MORI Ryuichirou et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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