Its medium is blast furnace gas which is inflammable, explosive and toxicant.Therefore, the shaft end sealing system of a turbine expander must be safe and reliable, and has economic running.

• 由于其介质为高炉煤气,属于易燃、易爆、有毒气体,所以要求透平膨胀机的轴端密封系统必须安全可靠,且运行经济。