公开(公告)号：JPH09125911A

公开(公告)日：1997-05-13

申请号：JP24829496

申请日：1996-09-19

Applicant: ABB MANAGEMENT AG

Inventor： MIRUSEA FUETECHIYU ,  HENRIKU NIIRUSEN

IPC: F01K21/04 ,  F01K23/10 ,  F02C3/30 ,  F02C6/18

Abstract: PROBLEM TO BE SOLVED: To reduce equipment cost, and avoid a defect of a distributing valve by already obviating the distributing valve in an exhaust gas conduit. SOLUTION: In a power station plant, exhaust gas of gas turbo device groups 40, 41 and 46 is supplied through a supply water conduit 15, and heats water guided through an exhaust heat steam generator 8 by a counterflow. Generated steam is supplied to a steam turbine 1 as a steam utilizing device through a steam conduit 6. Water supplied through the supply water conduit 15 is guided through the exhaust heat steam generator 8 by passing through it once. The exhaust gas of the gas turbo device groups is guided through the exhaust heat steam generator 8 at all operation times. When the steam turbine 1 is cut off, the steam generated in the exhaust heat steam generator 8 is introduced into the gas turbo device groups through a jet steam conduit 23.

公开(公告)号：JPH09170406A

公开(公告)日：1997-06-30

申请号：JP29500596

申请日：1996-11-07

Applicant: ABB MANAGEMENT AG

Inventor： BENNO BASURAA ,  MIRUSEA FUETECHIYU

IPC: F01D25/30 ,  F01K23/10 ,  F02C7/00 ,  F16K11/052 ,  F22B1/18 ,  F23J11/00 ,  F28F27/02

Abstract: PROBLEM TO BE SOLVED: To avoid exhaust gas loss in a dumper mechanism by composing a dumper mechanism of at least one gas flue flap, and positioning the pivot axis of the flue gas flap approximately perpendicular to the base of a power station plant. SOLUTION: Exhaust gas from a gas turbine 41 is selectively introduced into either a heat exchanger or an exhaust gas draft 9, through a flue gas path 1 and a dumper mechanism positioned at downstream. In this type, the dumper mechanism is composed of at least one flue gas flap 2. And the pivot axis 3 of the flue gas flap 2 is positioned approximately perpendicular to the base of the power station plant. Therefore the flue gas flap 2 is secured at respective position by the positive pressure in the flue gas path 1. This allows a seal effect to be obtained. The driving device required for the swing of the flue gas flap 2 will be significantly simplifier with this structure.

公开(公告)号：JPH09166027A

公开(公告)日：1997-06-24

申请号：JP29500496

申请日：1996-11-07

Applicant: ABB MANAGEMENT AG

Inventor： BENNO BASURAA ,  MIRUSEA FUETECHIYU

IPC: F01D25/30 ,  F02C6/18 ,  F02C7/00

Abstract: PROBLEM TO BE SOLVED: To avoid the exhaust gas loss within a flue gas passage by closely connecting a band to a heat exchanger and an outlet passage, and setting the bending angle of the bend smaller than a specified value. SOLUTION: A hot exhaust gas is discharged through a flue gas passage formed of an outlet passage 4 and a bend 1. The bend 1 selectively connects the outlet passage 4 to the supplying passage 10 of an exhaust gas chimney 2 or a heat exchanger. The exhaust gas chimney 2 and the heat exchanger 3 are set on the foundation of a device group in a row. In order to minimize the flow loss by curvature, the bend 1 is arranged so that the bending angle W of the bend 1 is smaller than at lest 60 deg.C. Thus, the flow loss within the bend can be minimized to omit a deflecting grid, and the useful life and the serviceability of the device group and enhanced.