INTAKE COOLING DEVICE FOR GAS TURBINE

• Main Author: TSUJI TADASHI
• Format: Patent
• Language: English
• Published: 15.02.1994
• Edition: 5
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; STORING OF DISTRIBUTING GASES OR LIQUIDS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

PURPOSE:To prevent the occurrence of icing and frosting by safely and high- efficiently cooling intake to a gas turbine by using liquefied gas, such as LNG, serving as fuel. CONSTITUTION:A vaporization heat transfer group 9 is arranged in the air intake duct 8 of a gas turbine and a condensing drum 10 and a lower drum 11 are arranged thereabove and therebelow. A liquefied gas heat transfer pipe 12 and a water spraying device 13 are disposed in the condensing drum 10. Further, a vacuum pump 14 by which a pressure in the condensing drum 10 is reduced and a circulating pump 15 to feed water in the condensing drum 10 with a pressure to the lower drum 11 and the water spraying device 13 are provided. Gas turbine intake is indirectly cooled through water and steam by means of a liquefied gas cold heat source. Further, the degree of a vacuum in the condensing drum 10 is regulated with the aid of the vacuum pump 14 to regulate the saturating temperature of water, the temperature of intake is cooled to a proper value, and icing and frosting are prevented from occurring.