噪声治理技术在燃气—蒸汽联合循环电厂中的应用

Application of Noise Control Technology in Gas-Turbine Power Plant

对噪声治理技术应用于燃气—蒸汽联合循环电厂的方法论进行了探索。从声学原理出发,介绍隔声、消声、吸声噪声治理基本方法。对燃气—蒸汽联合循环电厂的主厂房、余热锅炉、冷却系统、调压站、变压器等主要噪声源进行分析,以针对每个区域噪声源强度、频谱特点及传播方式,提出相应的降噪措施。降噪策略同时满足了经济性、实用性和安全性,但后续仍需在降噪器性能损失、消声材料老化、隔声体美观感不够等局限性上加以克服。

The methodology of noise control technology applied to gas-turbine power plant is explored. Starting from the principle of acoustics, the basic methods of noise control including sound insulation, noise elimination and sound absorption are introduced. The gas-turbine power plant’s main noise sources including main workshop, waste heat boiler, cooling system, regulator station and transformer are analyzed, aiming at putting forward relevant control measures from noise source intensity, spectrum characteristics and propagation mode of each regional. The noise reduction strategy meets the requirements of economic, practical and safety, but it still needs to be overcome in the following aspects： the noise loss of the noise reduction device, the aging of the anechoic material, and the lack of the artistic of the sound insulation body.