A COVER AIR CUSHION PRESSURE ADJUSTABLE ROOM

摘要

A cover air cushion pressure adjustable room for restraining water hammer and water fluctuation via an air cushion and a water cushion formed by high pressure is provided. Wherein, the air cushion (7) and the water cushion (8) are formed in the airtight cell (1), the air cell (1) is connected to a head conduit (3) by a joint tunnel (2), and the periphery and the top of the air cell are formed by an airtight pressure cover (4) with an open mouthed bottom, so the gas in the air cell can be sealed effectively. The pressure adjustable room is adopted in the geologic condition of a rock with higher penetration.