A three-dimentional numerical model for flow characters in honeycome-like gland sealings has been established

the influence of structure and operating conditions of honeycomb-like gland sealings

such as their aperture and height

their inlet steam pressure

and rotating velocity of the main shaft etc.

upon the flow characters of said gland sealing being systematically analysed.The results of study show that the increase of aperture and height of said gland sealings is helpful for reducing the steam leakage flow rate and enhancing the effectiveness of sealing under condition of constant operating parameters.However

under condition of constant structural parameters

the steam leakage rate from said gland sealings is increasing along with the increase of inlet steam pressure

and having reduction tendency with increasing the rotating velocity of main shaft.