Preheaters
Abstract
Abstract A PREHEATER FOR USE IN A MULTIEFFECT DISTILLATION SYSTEM COMPRISING A HOUSING HAVING A PLURALITY OF CHAMBERS WITH A CONDUIT MEANS EXTENDING AXIALLY THROUGH EACH OF THE CHAMBERS FOR CARRYING FEED LIQUOR TO A MULTIPLE EFFECT EVAPORATOR. FIRST INLET MEANS IS PROVIDED FOR INTRODUCING HOT VAPORS INTO EACH OF THE CHAMBERS, SECOND INLET MEANS IS PROVIDED FOR INTRODUCING SUPERHEATED CONDENSATE INTO EACH OF THE CHAMBERS, AND OUTLET MEANS IS PROVIDED FOR REMOVING CONDENSATE FROM EACH OF THE CHAMBERS. THE SUPERHEATED CONDENSATE FLASHES TO FORM MORE HOT VAPOR WHICH COMBINES WITH THE HOT VAPOR INTRODUCED BY THE FIRST INLET MEANS. THE COMBINED VAPOR HEATS THE CONDUIT MEANS WHICH IS, TYPICALLY, A BUNDLE OF TUBES. BAFFLE MEANS IS ASSOCIATED WITH THE CONDUIT MEANS TO MAINTAIN A HIGH VAPOR VELOCITY THEREACROSS.
Inventors
- 👤 P Longwell
- 👤 D Kays
- 👤 K Frank
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |