Title:
GAS-TURBINE COMBINATION SYSTEM AND OPERATION SWITCHING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2019124127
Kind Code:
A
Abstract:
To suppress a GTCS from decreasing in operation efficiency in switching from bypass stack operation to HRSG operation.SOLUTION: An HRSG 50 of a GTSC is provided with: a ventilation pipe P2 and a vent pipe P3 which connect with a fuel pipe P1 of a co-burning burner 52 at a position upstream from a main shut-off valve V1 and downstream from a fuel shut-off valve V2; a ventilation shut-off valve V3 which opens and closes the ventilation pipe P2; and a vent shut-off valve V4 which opens and closes the vent pipe P3. An operation switching method comprises: in bypass stack operation, closing an entrance into the HRSG 50 and opening a bypass stack 30, closing the main shut-off valve V1 and fuel shut-off valve V2, and leaving the ventilation shut-off valve V3 and vent shut-off valve V4 normally open; and in switching to HRSG operation, opening the entrance into the HRSG 50 and closing the bypass stack 30 without extinguishing a GT 10, opening the main shut-off valve V1 and fuel shut-off valve V2, and closing the ventilation shut-off valve V3 and vent shut-off valve V4.SELECTED DRAWING: Figure 1
Inventors:
MURATA SHIGETO
Application Number:
JP2018003082A
Publication Date:
July 25, 2019
Filing Date:
January 12, 2018
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS
International Classes:
F01K23/10; F02C6/18; F02C7/00
Domestic Patent References:
| JPH0642735A | 1994-02-18 | |||
| JPS5660809A | 1981-05-26 | |||
| JP2013092146A | 2013-05-16 | |||
| JP2007232262A | 2007-09-13 | |||
| JP2001214760A | 2001-08-10 | |||
| JPS618501A | 1986-01-16 | |||
| JP2016048044A | 2016-04-07 | |||
| JP2013253602A | 2013-12-19 | |||
| JP2012002125A | 2012-01-05 | |||
| JP2009062985A | 2009-03-26 | |||
| JP2009030600A | 2009-02-12 | |||
| JPH1122419A | 1999-01-26 | |||
| JPS60206909A | 1985-10-18 | |||
| JP2009008076A | 2009-01-15 | |||
| JP2004162620A | 2004-06-10 |
Foreign References:
| US5819539A | 1998-10-13 | |||
| US20070062175A1 | 2007-03-22 | |||
| US20060272334A1 | 2006-12-07 | |||
| US20090145104A1 | 2009-06-11 |
Other References:
JAMES DICAMPLI: "COMBINED HEAT AND POWER -GAS TURBINE OPERATIONAL FLEXIBILITY", ASME TURBO EXPO 2013: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, vol. 4, JPN7021001336, 2013, US, ISSN: 0004489401
Attorney, Agent or Firm:
Kaichi International Patent Office