DISCHARGE FLOATING PIPE WITH PNEUMATIC FLOATS AND METHOD FOR ITS MANUFACTURE Russian patent published in 2009 - IPC F16L11/00 

FIELD: transportation.

SUBSTANCE: in discharge floating pipe floats are arranged as a whole with hose and are installed along its whole length next to each other, at that internal diametre of torus is equal to diametre of hose external wall, besides, coaxially with hose and floats on their external sides, limiter of radial deformation is installed, made of fabric cloth shaped in jacket in the form of split cylinder with the possibility of its volume variation. In method, which includes assembly of multi-layer hose from rubber-fabric materials on cylindrical metal mandrel, press-fitting of billet prior to vulcanisation, vulcanisation and dismantling of discharge pipe, and on external wall of hose along its whole length next to each other, flat-folded rubber-fabric billets of floats are installed, which have nipples for passage of compressed air and arranged in the shape of torus with internal diametre equal to diametre of hose external wall, gaskets are installed in internal cavities of floats and between neighboring floats, at that limiter of radial deformations is installed coaxially with hose and floats on their external sides, press-fitting of hose with floats prior to vulcanisation is carried out by means of air injection via nozzles into floats installed between hose and limiter of radial deformations.

EFFECT: simplified assembly works and increased reliability of pipeline.

2 cl, 3 dwg