According to the deficiency of sorts of devices for antifriction to diesel gas-in valve in our country a new-style device is provided and discussed its principles and structure.
The deficiency of the mechanical seal of ammonia compressor was presented, and the way, the feasibility and the economical efficiency of the gas seal reform were discussed.
对氨压缩机密封存在的问题进行了分析，提出了改进意见，并对现场实施改造的可行性、经济性进行了探讨。
3
Some improvements were presented by analyzing and demonstrating for the structural design deficiency of the bleed valve of a heavy duty gas turbine bleed system.