Abstract: An exhaust system and a gas turbine, in which the exhaust system includes an exhaust casing; an outer diffuser supported inside the exhaust casing; an inner diffuser disposed inside the outer diffuser to form an exhaust gas flow passage between the inner diffuser and the outer diffuser; a strut cover coupled at a first end to the outer diffuser and coupled at a second end to the inner diffuser; and a second cooling air introduction port provided in the exhaust casing, further on the downstream side of the exhaust gas flow passage than the strut cover. Furthermore, a non-perforated partition member having an annular shape is arranged so as to cover the outer side of the outer diffuser and is supported by the exhaust casing to form a cooling air flow passage.

Abstract: A method includes a casing disposing step for disposing a top casing, with a split surface of the top casing facing downward, at a workable position where a space is secured such that it is possible to dispose a vane segment attached to the top casing below the top casing. Next, a segment moving step is executed for moving the vane segment attached to the top casing in a circumferential direction and disposing the vane segment in the space below the top casing.

Abstract: The present invention provides an exhaust system and a gas turbine. The exhaust system includes: an exhaust casing; an outer diffuser supported inside the exhaust casing; an inner diffuser disposed inside the outer diffuser to form an exhaust gas flow passage between the inner diffuser and the outer diffuser; a strut cover coupled at one end to the outer diffuser and coupled at the other end to the inner diffuser; a second cooling air introduction port provided in the exhaust casing, further on the downstream side of the exhaust gas flow passage than the strut cover; a partition member having an annular shape so as to cover the outer side of the outer diffuser and supported by the exhaust casing; and a cooling air flow passage.

Abstract: The present invention provides a method, in which a casing disposing step is executed for disposing a top casing (20u), with a split surface of the top casing (20u) facing downward, at a workable position where a space is secured such that it is possible to dispose a vane segment (11) attached to the top casing (20u) below the top casing (20u). Next, a segment moving step is executed for moving the vane segment (11) attached to the top casing (20u) in the circumferential direction (Dc) and disposing the same in the space below the top casing (20u).

Abstract: A heater for an air conditioner includes plural water tubes and plural refrigerant tubes which are arranged in parallel in an air flow direction. Therefore, the heater can heat air by using at least one of the heating sources while a pressure loss in the heater can be effectively reduced. For example, in a quick-heating mode, high-temperature refrigerant from a refrigerant cycle flows into the heater to heat the blown air, and low-temperature engine-cooling water from an engine bypasses the heater. In this case, thermal leakage from the refrigerant to the engine-cooling water is avoided.