| 摘要 |
PURPOSE:To prevent leak of main steam by installing cylinders between the inside of a main steam pipe and the outside of a conduit tube at a joint part for the main steam pipe of a turbine and the conduit tube. CONSTITUTION:At a joint part for a main steam pipe 1 and a conduit tube 3, a double cylinder 19 is installed at the end of the conduit tube 3, while a cylinder 19' is installed inside the main steam pipe 1. Thus, ringing the cylinders 19, 19' into contact with each other in a deformed state by the differential pressure between high pressure main steam in a space 18 and low pressure turbine exhaust in a space 16, the leak of main steam from the space 18 to the space 16 can be prevented. |
