Patent US4941330A successfully refreshed from Google Patents.
US4941330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage flash evaporator
Assignee: Individual
•
Filing: 1987-12-17
•
Granted: 1990-07-17
•
Expires: 2007-12-17
Abstract
Abstract A multi-flash evaporator having modular vertical cyclone chambers designed to generate a paraboloid of revolution providing an extended surface area for release of flashed vapors and attaining equilibrium. With multiple stages, the system incorporates deep loop seals to prevent blowby between stages at all levels of capacity and employs a vapor lift system to permit low pressure differentials between stages at high vacuum. The cyclone chambers employ an intermediate tangential inlet whereby the flashing vapors propel the liquid at higher velocities to generate a deeper paraboloid of revolution and centrifugally separate the heavier liquid from the flashing vapor. An anti-creep ring is interdisposed at the top of the cyclone to prevent the liquid from entering a mesh so only vapor impinges on the mesh and passes to the heat recovery condensers embodying a bayonet augmented tube heat exchanger.
Inventors
- 👤 William R. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:50
CPC Classifications
F; F28; F28B; F28B9/00; F28B9/08; F28B1/00; F28B1/02; F28B9/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
226 words
A FREON heat pump having a FREON condenser, said condenser including: a. a substantially horizontal outer shell having an elongated center section, and having a first tube sheet closure a closed distal end; b. at least one externally finned tubular sheath member having a closed end adjacent but spaced from said closed distal end of said shell and an open end facing said first tube sheet closure of said shell; c. means for forming a first fluid flow zone between the outer surfaces of said finned sheath and said shell wherein said first fluid is condensed; d. an insulating plastic bayonet tube concentrically positioned in at least one of said sheaths, said bayonet tube piercing said first tube sheet closure, and having an outer portion extending at least through said first tube sheet closure and an inner portion terminating in an open end space from said closed end of said sheath; e. means for forming a second fluid flow zone wherein said second fluid is heated in turbulent flow, said second fluid flow zone including the annulus formed between said bayonet tube and the inner surface of said sheath; f. means for directing said second fluid into said bayonet tube in the direction of said open end of said bayonet tube; and g. means for removing said heated second fluid from said second fluid flow zone.
Claim 2
Dependent Claim
226 words
A FREON heat pump having a FREON condenser, said condenser including: a. a substantially horizontal outer shell having an elongated center section, and having a first tube sheet closure a closed distal end; b. at least one externally finned tubular sheath member having a closed end adjacent but spaced from said closed distal end of said shell and an open end facing said first tube sheet closure of said shell; c. means for forming a first fluid flow zone between the outer surfaces of said finned sheath and said shell wherein said first fluid is condensed; d. an insulating plastic bayonet tube concentrically positioned in at least one of said sheaths, said bayonet tube piercing said first tube sheet closure, and having an outer portion extending at least through said first tube sheet closure and an inner portion terminating in an open end space from said closed end of said sheath; e. means for forming a second fluid flow zone wherein said second fluid is heated in turbulent flow, said second fluid flow zone including the annulus formed between said bayonet tube and the inner surface of said sheath; f. means for directing said second fluid into said bayonet tube in the direction of said open end of said bayonet tube; and g. means for removing said heated second fluid from said second fluid flow zone.
Claim 3
Dependent Claim
28 words
The apparatus according to claim 1 further comprising means for directing said second fluid into said annulus in the direction of said open end of said bayonet tube.
Claim 4
Dependent Claim
255 words
A FREON heat pump comprising: a. a FREON compressor; and b. a FREON chiller including: i. a substantially horizontal outer shell having elongated center section, an inner end having a first tube sheet closure and a closed distal end; ii. at least one externally finned tubular sheath having a closed end adjacent but spaced from said closed distal end of said shell and an open end facing said first tube sheet closure of said shell; iii. means for forming a first fluid flow zone between the outer surfaces of said sheath and said shell wherein said first fluid is cooled; iv. a small diameter bayonet tube concentrically positioned in at least one of said sheaths, said bayonet tube piercing said first tube sheet closure, and having an outer portion extending at least through said first tube sheet closure and an inner portion terminating in an open end spaced from the closed end of said sheath; v. means for forming a second fluid flow zone between said bayonet tube and the inner surface of said externally finned tubular sheath; vi. means for forming a second fluid flow zone wherein said second fluid is heated in turbulent flow, said second fluid flow zone including the annulus formed between the bayonet tube and the inner surface of said externally finned tubular sheath; vii. means for directing said second fluid into said bayonet tube in the direction of said open end of said bayonet tube; and viii. means for removing said second fluid from said second fluid flow zone.
Claim 5
Dependent Claim
255 words
A FREON heat pump comprising: a. a FREON compressor; and b. a FREON chiller including: i. a substantially horizontal outer shell having elongated center section, an inner end having a first tube sheet closure and a closed distal end; ii. at least one externally finned tubular sheath having a closed end adjacent but spaced from said closed distal end of said shell and an open end facing said first tube sheet closure of said shell; iii. means for forming a first fluid flow zone between the outer surfaces of said sheath and said shell wherein said first fluid is cooled; iv. a small diameter bayonet tube concentrically positioned in at least one of said sheaths, said bayonet tube piercing said first tube sheet closure, and having an outer portion extending at least through said first tube sheet closure and an inner portion terminating in an open end spaced from the closed end of said sheath; v. means for forming a second fluid flow zone between said bayonet tube and the inner surface of said externally finned tubular sheath; vi. means for forming a second fluid flow zone wherein said second fluid is heated in turbulent flow, said second fluid flow zone including the annulus formed between the bayonet tube and the inner surface of said externally finned tubular sheath; vii. means for directing said second fluid into said bayonet tube in the direction of said open end of said bayonet tube; and viii. means for removing said second fluid from said second fluid flow zone.
Claim 6
Dependent Claim
28 words
The apparatus according to claim 3 further comprising means for directing said second fluid into said annulus in the direction of said open end of said bayonet tube.
References Cited (Backward Citations)
GB122563A
Cited
US1574675A
Cited
US2243593A
Cited
US2549687A
Cited
US2800307A
Cited
US3059396A
Cited
US2994647A
Cited
US3155600A
Cited
US3142381A
Cited
US3186924A
Cited
US3181606A
Cited
US3285832A
Cited
US3423294A
Cited
US3312601A
Cited
US3361649A
Cited
US3533267A
Cited
US3580816A
Cited
US3681936A
Cited
US4140584A
Cited
US4142580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-16 | 1994-01-15 | 1994-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-16 | 1998-01-15 | 1998-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-16 | 2002-01-15 | 2002-07-17 | $7700.00 | Window Closed / Lapsed |