Gas heating system of gas turbine

• Main Authors: ZENG MINDONG, RUAN WENDI, LONG ZEFEI, ZHANG YANGCHAO, LI NING, CHEN SHANSEN
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The utility model belongs to the field of gas power generation systems, and discloses a gas heating system of a gas turbine, which comprises a gas supply pipe, a gas output pipe, a medium-pressure economizer, a first heat exchanger, a second heat exchanger and a condenser, and a steam outlet of the medium-pressure economizer is connected with a steam pipeline; the fuel gas supply pipe is sequentially connected with the shell side of the first heat exchanger, the shell side of the second heat exchanger and the fuel gas output pipe. The steam pipeline is sequentially connected with the tube pass of the second heat exchanger, the tube pass of the first heat exchanger and the condenser. According to the system, waste steam of the medium-pressure economizer is adopted for conducting secondary heating on fuel gas, and fuel gas preheating is achieved. 本实用新型属于燃气发电系统领域，其公开了一种燃机燃气加热系统，包括燃气供应管、燃气输出管，还包括中压省煤器、第一换热器、第二换热器、凝汽器，所述中压省煤器的蒸气出口连接有蒸气管道；所述燃气供应管依次连接第一换热器的壳程、第二换热器的壳程、燃气输出管；所述蒸气管道依次连接第二换热器的管程、第一换热器的管程、凝汽器。该系统采用中压省煤器