用于燃气涡轮机入口空气加热的系统和方法

System and method for gas turbine inlet air heating

Abstract

本发明涉及用于燃气涡轮机入口空气加热的系统和方法。在本发明的一个实施例中,描述了一种用于部分负荷效率改善以及入口内和压缩器入口处的防结冰的燃气涡轮机系统。该系统包括具有接收入口空气的压缩器的燃气涡轮机。在入口空气流动通过入口并且到达压缩器之前直接接触式热交换器加热入口空气。加热入口空气减小燃气涡轮机的输出并且扩大调节范围,并且避免入口内和压缩器入口喇叭口处的结冰状况。直接接触式热交换器也可以被配置成用作蒸发冷却器、空气制冷器或使用液体干燥剂。
The present invention relates to a system and a method for gas turbine inlet air heating. In one embodiment of the present invention, a gas turbine system for part load efficiency improvement and anti-icing within the inlet and at the compressor inlet is described. The system includes a gas turbine having a compressor which receives inlet-air. A direct-contact heat exchanger heats the inlet-air before the inlet-air flows through the inlet and to the compressor. Heating the inlet-air reduces an output of the gas turbine and extends the turndown range, and avoids ice-forming conditions within the inlet and at the compressor inlet bellmouth. The direct-contact heat exchanger may also be configured to act as an evaporative cooler, air chiller, or to use liquid dessicant.

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