| 摘要 |
The invention relates to a system (1) for securing a liner (2) in a main (3) or host pipe for conveying flowable material adjacent a branch pipe or ferrule (4) of the main (3) whilst providing flow connection between the main (3) and the branch pipe (4), comprising means (5) to locate the position of the branch pipe (4) after the liner (2) is installed, means (6) to form an orifice (7) through the liner (2) to provide said flow connection, and a device (8) for sealing the boundary of the through orifice (7) against leakage of flowable material between the liner (2) and the main (3). The locating device is an electronic device which can be inserted in the bore of the ferrule by a robot device which can travel along the main (3). The device is inserted in the ferrule (4) before the liner (2) is inserted. When so inserted, the robot via a detection means can locate the ferrule via the device, and can then cut the orifice through the liner (2) by a suitable cutting tool comprising the means to form the orifice. The device (5) not only allows detection of where each ferrule in a main (3) is, but can provide ferrule parameters, such as ferrule bore size for example, the signal given by the device being proportional to the flexure thereof. Various embodiments of sealing device are disclosed. |
