| 摘要 |
A polymer lined pipe (PLP) assembly comprising: two PLP pipe sections (2), each PLP pipe section comprising an outer metal pipe (20) and a fitted inner polymer liner (22), each inner polymer liner terminating before one end of each outer metal pipe, and the final portion (26) of each such end (25) of each liner having a smooth female inner bore (28) with an original internal diameter D2, and a connector (4) having a cylindrical central section (10) between opposing cylindrical ends (12), each connector end having a smooth male outer shaft (14) with an original external diameter of D1, wherein D1 > D2 prior to mating, and adapted to mate by interference fit with the female inner bores of the inner polymer liners of the PLP pipe sections to form a continuation of the liner along the PLP assembly. In this way, the smooth mating of the female inner bores and the male outer shafts can be carried out without inducing any stress concentrations or weak points therein between, leading to a more trustworthy seal and connection, and trustworthy pipeline in use. |
