The Pipeline Flow Property of the HFC-227ea;

Numerical simulation of the flow field in a curved rectangular tube for the HFC-227ea fire system;

Probe into the HFC-227ea gas fire-extingui-shing system applied in the diesel locomotives;

Comparing properties of heptafluoropropane substituted for bromotrifluoromethane extinguisher;

Discuss the toxicity of heptafluoropropane and test method based on animals about toxicity of heptafluoropropane and perfluoroisobutylene.

Heptafluoropropane fire extinguishing system and the use of the characteristics of the function;pointed out that the use of heptafluoropropane fire extinguishing agent that can effectively control the fire,and environmental protection,economic,and is ideal for protection of electrical,magnetic media,paper files or high-value treasures and equipment.

A kind of catalysts for preparing the 2H heptafluoropropane (F 227) by the hydrofluorinaton in a gas solid phase reaction system was studied in detail.

H heptafluoropropane (F 227) was prepared from hexafluoropropene (HFP) and HF by a continuous hydrofluorinating reaction in a gas solid phase system, and the technology was systematically studied.