Risk analysis of a hydrogen leakage event for a certain 1 000 MW turbine generator;

Analysis of hydrogen leakage in Unit 4 generator rotor of Shajiao A Power Station;

An Instrument Developed to Detect the Hydrogen Leakage into the Cooling Water of the Stator Bar of Turbogenerators;

By analyzing the abnomal hydrogen leaking of QFSN-300-2 generation, different kinds of trouble shooting method and solution for hydrogen leaking are summarized They include the conclusion that there are some defect in oil sealing axle bush design, So they suggest how to settle this problem.

Therefore are adopted the article study the hydrogen leaking problem about 3th generator in Yangguang Generation Co.

Discusses the construction and characteristics of the vacuum system of vacuum consumable arc furnace and the importance of vacuum leakage rate to the production of titanium and Ti-alloys in accordance to their metallurgical properties.

From the Poiseuille viscose flow law,the relationship of the leak quantity,the leak hole size,the physical properties of liquor and the spurting time was discussed,and the expression of leakage rate of liquor was derived.

So, the requirements for leakage rate is very strict to the heat sink, especially the severe requirement for leakage detection during its fabricating process.

Difference between leak rate and rate of pressure rise of high vacuum valve;

Effect of stress relaxation on the leak rate of the orbicular seal joint

The general method of calculating leak rate is no longer valid.

The detecting (equipent,)parameter calculation,and test step about the methods of breathability coefficient and leakage ratio of sulfur hexafluoride are introduced in detail.