| 摘要 |
A multiple-layer pressure vessel and method for constructing and using same, in which a flowable heat-conductive material is introduced into the narrow spaces (13, 15, 17) between the adjacent metal layers (12, 14, 16, 18) in the vessel walls. The use of such material, which has a heat conductivity of at least 0.03 Btu/hr/ft DEG F/ft (187 Jh<-1>m<-2> DEG C<-1>m), improves the thermal conduction and temperature distribution within the multilayer pressure-retaining wall and beneficially reduces any maldistribution of metal stresses therein. The multilayer pressure vessel is usually cylindrical-shaped, is composed of 5-50 layers of metal, and operates at 300-1500 DEG F (149-816 DEG C) internal temperature and 1000-15,000 psi (69-1034 bar) internal pressure. For vessels containing hot hydrogen, any hydrogen which permeates through the innermost metal layer (10) of the wall can be vented from the space (11) between the two innermost layers of metal (10, 12) to prevent hydrogen attack and/or embrittlement problems in the outer layers of the vessel metal wall. <IMAGE> |
