The invention relates to a composite pipeline which can be wound on a drum, having thermal insulation between metal pipes which are corrugated uniformly in an annular manner, and are held concentrically at a distance. The invention achieves the object of permitting the production of said pipeline as well as its connection at a small cost. The achievement of the object is essentially the special construction of the profile of the annular corrugation beads of the inner and of the outer pipe and of the arrangement and design of prefabricated spacers. The composite pipeline is used for remote heating lines.
申请公布号
FI820624(L)
申请公布日期
1982.10.25
申请号
FI19820000624
申请日期
1982.02.24
申请人
FELTEN & GUILLEAUME ENERGIETECHNIK GMBH
发明人
TEWS, WOLFGANG;SCHMITZ, HELMUTH;SCHMITZ, GYNTER;ALBRECHT, CHRISTHART;SIEGERT, WOLFGANG