原文传递
Development report for dual-burst disks
| 题名： | Development report for dual-burst disks |
| 作者： | Fusco, A.M.; |
| 关键词： | 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES;36 MATERIALS SCIENCE; PRESSURE VESSELS; RELIEF VALVES; PERFORMANCE TESTING; DESIGN; LASER WELDING; RESISTANCE WELDING; STAINLESS STEEL-304L; SURFACE FORCES; HYDROGEN ISOTOPES |
| 摘要： | Burst disks, commonly used in pressure relief applications, were studied as single-use valves. A dual-burst disk design was chosen for primary investigation for systems involving separation of gases of two significantly different pressures. The two disks are used to seal either end of a piston cavity that has a different cross-sectional area on each side. Different piston surface areas are used to maintain hydrostatic equilibrium, P{sub 1}A{sub 1} = P{sub 2}A{sub 2}. The single-use valve functions when the downstream pressure is reduced to approximately atmospheric pressure, creating a pressure differential that causes the burst disks to fail. Several parameters were studied to determine the optimum design of the burst disk. These parameters include thickness, diameter, area/pressure ratio, scoring, and disk geometry. The disk material was limited to 304L stainless steel. Factors that were considered essential to the optimization of the design were robustness, manufacturability, and burst pressure variability. The thicknesses of the disks that were studied range from 0.003 in. to 0.010 in. A model for predicting burst pressures of the burst disks was derived. The model combines membrane stress theory with force/displacement data to predict the burst pressure of various designs to within {+-}10%. This model results from studies that characterize the behavior of individual small and large disks. Welding techniques used to join the dual-disk assembly are discussed. Laser welds are used to join and seal the disks to the bulkhead. These welds were optimized for repeatability and robustness. Resistance upset welding is suggested for joining the dual-disk assembly to the pressure vessel body. Resistance upset weld parameters were developed for this particular design so as to minimize the side effects on the burst-disk performance and to provide high-quality welds. |
| 总页数： | 42p |
| 报告类型： | 科技报告 |
相关文献
- REDUCING HAZARDOUS MATERIALS RELEASES FROM RAILROAD TANK CAR SAFETY VENTS.
- Footprint Reduction for the Acoustic Electric Feedthrough Technique
- Outsourcing of Defense Supply Center, Columbus, Bus and Taxi Service Operations.
- Civil Air Patrol Senior Member Professional Development Course
- Feasibility Study Utilizing Meteor Burst Communications for Vessel Monitoring
- National Automotive Center (NAC) Overview & Green Technology Initiatives: Visit by Agency for Defense Development, South Korea.
检索历史
应用推荐
