Double-walled pipe

摘要: A double-walled pipe, which is suitable for conveying hot fluids example in high-temperature nuclear energy installations, consists of a ceramic inner pipe (1), sealed metallic outer (2) and, arranged between the two, spacers (3) form circular ring segments consist material having same expansion coefficient as that (1). The individual are pressed apart from one another circumferential direction by adjustable springs (4) so that, even case different thermal and force-fitting connection to latter produced. Special pieces (9), project somewhat beyond surface relatively high strength, although with less-favourable heat transmission characteristics, on contact lines (2). (1) positively locking via grooves latter, into engage.