| 摘要 |
<p>Disclosed is a pre-formed insulation module ( 310, 320 ) for insulating a process component having opposed longitudinally extending contacting surfaces ( 390 ) extending along a length thereof and terminal contacting surfaces ( 337, 387 ) at each end thereof comprising: a) at least one first inner insulation layer ( 314 ) being constituted of an insulation material having suitable thermal shock characteristic under cryogenic conditions and having one surface ( 314 d) proximate or contacting with a component to be insulated; b) at least one second outer insulation layer disposed radially outwardly of said inner insulation layer ( 314 ); c) at least one water vapour barrier layer ( 319 ); d) a cladding layer ( 318 ).</p> |
