Compensator for compensating thermal expansions

摘要

A compensator ( 18 ) is provided for compensating thermal expansions of ducts or pipelines ( 10 ) for carrying flows of hot media, especially ducts that are lined with fire-proof material. The compensator ( 18 ) is easy to maintain and is relatively simple in its design. This compensator ( 18 ) permits inspection of the operability of the expansion gap ( 19 ) between adjacent sections of the pipeline ( 10 ) and its elastic temperature-resistant jointing material ( 20 ) from the outside of the pipeline. The expansion gap ( 19 ) in the flame-proof lining is arranged in a cross section plane of the pipeline that is adjacent to but below the cross section plane of the corrugated pipe compensator ( 18 ) attached to the steel sheet jackets ( 15 ) of adjacent sections of pipeline ( 10 ). The steel sheet jackets ( 15 ) are spaced from one another in the area of the expansion gap ( 19 ) and the elastic temperature-resistant jointing material ( 20 ) is easily accessible from outside the pipeline upon removal of jacket parts ( 21 ) forming a collar around the expansion gap ( 19 ).