| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas combined power generating facilities capable of sufficiently raise the temperature of the refined gas coming out of gas refining equipment for supplying it to a gas-turbine combined power generating facilities, having no possibility of internal clogging and inflow of dust or the like into the gas turbine, and allowing the refining gas heating system to be compact. SOLUTION: Gas combined power generating facilities are provided with an indirect gas cooling/heating device 10 for cooling crude gas by a heating medium having a higher pressure than that of the crude gas and refined gas, and for heating the refined gas. The indirect gas cooling/heating device 10 is made of a crude gas cooler 12 arranged between a gasifying/cooking apparatus A and a gas refining apparatus B for cooling the crude gas and for heating the heating medium, a refined gas heater 14 arranged between the gas refining apparatus B and a gas-turbine combined power generating facilities C for heating the refined gas by the heated heating medium, and a medium circulating line 16 for circulating the heating medium between the crude gas cooler 12 and the refined gas heater 14. The heating medium is water and steam, and the pressure of the medium circulating line is set so that it is evaporated in the crude gas cooler 12 and is condensed in the refined gas heater 14.
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