| 摘要 |
<p>A reversible check valve particularly adapted to be used in combination with a self-inflating oil containment boom to allow for inflation and deflation thereof while at the same time preventing the ingestion of water into the inflated boom. The boom consists of an inflated upper section having internal bulkheads segregating adjacent airtight compartments, with a reversible check valve affixed to the upper portion of each compartment. The check valve comprises a tubular housing securely fitted within a flexible base structure affixed to the boom. To prevent ingestion of water during inflation, a caplike member fits over the tubular housing with a series of vertically oriented convolutions providing radially outwardly oriented secondary passageways for inflow and outflow of air. To prevent reverse flow, there is a perforated base plate at the lower end of the tubular housing and a flexible flap member affixed thereto.</p> |
