| 摘要 |
<p>A method and apparatus for sealing to a broken pipe conveying a first fluid under pressure. The apparatus comprises a first chamber for a pressurisable second fluid, a second chamber for a pressurisable third fluid, a first seal which is moveable from a first position, in which the first seal is free of the broken pipe during engagement of the apparatus with the broken pipe, to a second position in which, following the engagement, the first seal is in sealing and frictional contact with the broken pipe in response to an increased second fluid pressure in the first chamber, and a first connector for connecting the chamber to a source of pressurised the second fluid. A second seal and connector is also provided.</p> |
