| 摘要 |
The invention relates to multi-layer elastomer branches made of several materials and intended for angular connection of pipes or pipeline fittings in mains for transportation of fluid products under pressure or rarefaction. The multi-layer elastomer branch arranged as a bent multi-layer shell (1) that includes the inner wear-resistant layer (2) made of rubber, inner protective layer (3) made of rubber, connected to each other, intermediate layer (4) placed between those (2 , 3), arranged as a placed with crossing cross and long layers of beams, and end connection elements (5) for connection to neighboring pipes or pipeline fittings, those include circular frames (6) surrounded with intermediate layer (4) by the whole surface, at that the outer protective layer (3) covers the outer surfaces of the bent shell (1) and the end frames (6) of the end connection elements (5) and connected to the inner wear-proofed layer (2) in the place of joint of those. According to the invention, the branch additionally includes the outer armoring layer (7), this surrounds the outer protective layer (3) and comprises several power bandages (8) placed along the axis 0-0 of the multi-layer shell (1) with a gap t between the neighboring power bandages (8). And the circular frames (6) of the end connection elements (5) additionally include cell blocking bandages (9) placed in the outer protective layer (3) and connected to the circular frames (6) of the end connection elements (5) by means of long rods (10) placed in the outer protective layer (3) in perimeter of that one. The invention makes it possible to increase operational reliability and to prolong the term of operation of the branch. 1 n.p. f-la. 3 p.p. f-lae. 3 fig. |
