| 摘要 |
The invention relates to a device for sealing the end face of a tube from which fluid flows, wherein the device comprises an inner tube (1) which has a smaller diameter than the tube to be sealed and is introduced at the end face into the tube to be sealed, and a sealing body (6) which is provided to seal the ring gap between the inner tube (1) and the tube to be sealed. A turbine (3) is arranged in the area of the end face of the inner tube (1), which can be driven by the flowing fluid, wherein the rotational movement of said turbine is translated into a movement of the sealing body (6), thus bringing said sealing body from a position having reduced sealing capacity into a position having higher sealing capacity. |
