Abstract: A condenser for an axial flow exhaust type steam turbine having a condenser unit which condenses steam exhausted from the steam turbine as directly contacting cooling water from a spray nozzle, a cooling tower which generates the cooling water as receiving and accumulating water condensed by the condenser unit, a water circulating pipe which supplies water condensed by the condenser unit to the cooling tower, a water return circulating pipe which supplies the cooling water generated by the cooling tower to the condenser unit, and wherein a pump is arranged at the water return circulating pipe.

Abstract: An LNG (liquefied natural gas) power plant has a heating/cooling device. The heating/cooling device is controlled by a command generated by a temperature control device. The temperature control device receives a heating value and a temperature of the fuel gas. The heating value of the fuel gas introduced to a gas turbine power generation unit from an LNG vaporization facility is detected by a heating value detector. The temperature of the fuel gas is detected by a temperature detector. A target temperature calculator installed in the temperature control device calculates a target temperature based on the heating value. A command generator installed in the temperature control device generates the command by comparing the target temperature and the fuel temperature.

Abstract: An LNG (liquefied natural gas) power plant has a heating/cooling device. The heating/cooling device is controlled by a command generated by a temperature control device. The temperature control device receives a heating value and a temperature of the fuel gas. The heating value of the fuel gas introduced to a gas turbine power generation unit from an LNG vaporization facility is detected by a heating value detector. The temperature of the fuel gas is detected by a temperature detector. A target temperature calculator installed in the temperature control device calculates a target temperature based on the heating value. A command generator installed in the temperature control device generates the command by comparing the target temperature and the fuel temperature.

Abstract: A combined cycle power plant generally comprises a gas turbine power facility, a heat recovery steam generator, a steam turbine power facility, and an existing boiler. The power generation plant further comprises a system for introducing steam, which is generated in the heat recovery steam generator and the existing boiler, to the steam turbine of the steam turbine power facility through steam lines, which extend from the existing boiler and heat recovery steam generator and are then joined together, and a system for causing a line, which is arranged on a downstream side of a condenser provided in the steam turbine power facility, to branch off into feedwater lines, and supplying condensed water condensed by the condenser into the heat recovery steam generator and the existing boiler.

Abstract: A combined cycle power plant including a gas turbine plant, a heat recovery steam generator, and a steam turbine plant. The heat recovery steam generator includes a main stream side steam piping, a bypass side steam piping, a steam branching to branch a steam flowing from a former stage in the heat recovery steam generator into two steams, one as a main stream side steam and another as a de-superheating steam, and a steam merging portion to merge the main stream side steam superheated by the high pressure superheater and the de-superheating steam passed through the bypass side steam piping. The heat recovery steam generator is provided with a blocking prevention function to prevent blocking of the main stream side steam piping and the bypass side steam piping and a thermal stress generation protection function.

Abstract: A combined cycle power plant generally comprises a gas turbine power facility, a heat recovery steam generator, a steam turbine power facility, and an existing boiler. The power generation plant further comprises a system for introducing steam, which is generated in the heat recovery steam generator and the existing boiler, to the steam turbine of the steam turbine power facility through steam lines, which extend from the existing boiler and heat recovery steam generator and are then joined together, and a system for causing a line, which is arranged on a downstream side of a condenser provided in the steam turbine power facility, to branch off into feedwater lines, and supplying condensed water condensed by the condenser into the heat recovery steam generator and the existing boiler.

Abstract: A combined cycle power generation plant generally comprises a gas turbine plant, a steam turbine plant and an exhaust heat recovery boiler, which further includes a low temperature reheat steam system for supplying a turbine exhaust steam from a high pressure turbine of the steam turbine plant to a reheater of the exhaust heat recovery boiler, a cooling steam supply system which branches from the low temperature reheat steam system and supplies the turbine exhaust steam to the high temperature section as a cooling steam, an intermediate pressure superheater steam system which is connected to the cooling steam supply system and adapted to join a steam supplied from an intermediate pressure superheater of the exhaust heat recovery boiler together with the turbine exhaust steam, a reheat steam system connecting the reheater of the exhaust heat recovery boiler and the intermediate pressure turbine, a cooling steam recovery system which recovers a steam after cooling the gas turbine high temperature section to the

Abstract: A combined cycle power plant including a gas turbine plant, a heat recovery steam generator, and a steam turbine plant. The heat recovery steam generator includes a main stream side steam piping, a bypass side steam piping, a steam branching to branch a steam flowing from a former stage in the heat recovery steam generator into two steams, one as a main stream side steam and another as a de-superheating steam, and a steam merging portion to merge the main stream side steam superheated by the high pressure superheater and the de-superheating steam passed through the bypass side steam piping. The heat recovery steam generator is provided with a blocking prevention function to prevent blocking of the main stream side steam piping and the bypass side steam piping and a thermal stress generation protection function.

Abstract: A combined cycle power generation plant generally comprises a gas turbine plant, a steam turbine plant and an exhaust heat recovery boiler, which further includes a low temperature reheat steam system for supplying a turbine exhaust steam from a high pressure turbine of the steam turbine plant to a reheater of the exhaust heat recovery boiler, a cooling steam supply system which branches from the low temperature reheat steam system and supplies the turbine exhaust steam to the high temperature section as a cooling steam, an intermediate pressure superheater steam system which is connected to the cooling steam supply system and adapted to join a steam supplied from an intermediate pressure superheater of the exhaust heat recovery boiler together with the turbine exhaust steam, a reheat steam system connecting the reheater of the exhaust heat recovery boiler and the intermediate pressure turbine, a cooling steam recovery system which recovers a steam after cooling the gas turbine high temperature section to the