STEAM DAMPER

• Main Authors: BAN KUNIYOSHI, FUKUDA HIROBUMI, ODA SHIGEO
• Format: Patent
• Language: English
• Published: 24.07.1992
• Subjects: BLASTING; HEAT EXCHANGE IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; STEAM OR VAPOUR CONDENSERS; WEAPONS

PURPOSE:To prevent any occurrence of excessive stress by a method wherein an energy dampening buffle is slidably installed against a buffle supporting structure. CONSTITUTION:Steam 9 fed into a steam damper flows into a spray pipe 1 and further injected out of a steam injection port 7 while its pressure being reduced. Injected steam stream 10 strikes against an installed buffle 2, disperses its energy and blown into a condensor. The spray pipe shows a rapid increasing in its temperature due to flowing-in of steam and at the same time it is thermally expanded and extended in an axial direction and a direction perpendicular to an axis of the pipe. In turn, the spray pipe is supported such that a supporting plate 3 having a hole larger than an outer diameter of the spray pipe is mounted, the spray pipe is passed through the hole and the spray pipe is fixed in such a way as it may be slid by an adjusting plate 4 with a clearance required for a thermal expansion in a direction perpendicular to the axis of pipe. The adjusting plate 4 is welded and fixed to a supporting plate 3. The supporting plate 3 is forcedly welded and fixed to an inner structural member of the condensor so as to receive safely all the forces acting against the spray pipe. Accordingly, a temperature of the spray pipe is rapidly increased due to the flowing steam and even if a thermal expansion is produced at the spray pipe, the pipe is not restricted all and no excessive stress caused by the thermal expansion may occur.