Multi stage flash evaporator
Abstract
Abstract An improved multi-stage flash evaporator for distilling sea water, which, in transverse profile, is symmetrical about a vertical central axis. The evaporator construction includes a horizontally disposed, longitudinally extending, continuous, tubular casing, whose profile, on each side of the axis, is substantially of the shape of an ellipse which is truncated towards one end by this axis; and an inverted U-shaped shell within the casing and extending along the length thereof. The lower edges of the shell are sealingly connected to the floor of the casing, While the top of the shell sealingly contacts the upper junction connecting the elliptically shaped zones of the casing. A plurality of vertical, spaced apart, transversely extending, apertured partitions subdivide the shell into a number of serially connected chambers, for the raw sea water to flow therethrough and evaporate therein. The outer casing and the inner shall define separate, condensation chambers which are positioned laterally on each side of the serially connected evaporation chambers, the distillate vapor flowing from the evaporation to the condensation chambers through dropletseparating filters housed in the top of the shell.
Inventors
- 👤 D Barba
- 👤 G Liuzzo
- 👤 G Tagliaferri
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |