Valve-tray assembly
US5120474A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Sep 4, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A valve-tray assembly for vapor liquid contact towers. The active area of the tray beneath an upper downcomer is constructed with directional thrust valves facilitating oriented vapor flow therethrough and improving mass transfer efficiency. The valves include first and second support legs oriented into the liquid flow with the first leg having a wider surface area presented to the flow for diverting the flow therearound. The width of the first leg is less than the diameter of the valve aperture, about which the liquid is induced to flow into engagement with the vapor passing therethrough. The valve assembly is used in conjunction with, and outwardly of, a raised active inlet area to further control initially directed liquid flow from the perforated inlet area beneath the downcomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.