Energy Saving Strategy with Steam-Driven Compressor

Abstract

At the Tokai mill of Oji F-Tex Co., Ltd, the steam generated by boilers is adjusted through reducing valves to a required pressure and supplied to each equipment. Although one of the ways to utilize the differential pressure is to generate electric power using a steam turbine, the Tokai mill does not adopt this kind of system because its differential pressure and steam consumption are not so high.
Meanwhile, a steam-driven compressor has been introduced to the Iwabuchi and Fujinomiya manufacturing sites. One of the reasons for adopting the compressor is that paper machines use a lot of compressed air.
The steam-driven compressor is operating smoothly, and therefore allows some electric compressors to be on standby. It has led to reducing both energy consumption and frequency of maintenance on the electric compressors.
This paper describes the introduction effects of the steam-driven compressor.