US3712073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vaporizing and superheating cryogenic fluid liquids
Assignee: Black Sivalls and Bryson Inc
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Filing: 1971-02-03
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Granted: 1973-01-23
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Expires: 1991-02-03
Abstract
Abstract The present invention relates to methods and apparatus for economically vaporizing and superheating a stream of cryogenic fluid liquid. A body of heating medium liquid is heated in a closed vessel so that portions thereof are continuously vaporized. The stream of cryogenic fluid liquid to be vaporized and superheated is passed through a heating coil disposed within the vessel in heat exchange relationship with both the liquid and vapor portions of the heating medium so that the cryogenic fluid is vaporized and superheated to a desired level and so that vaporized heating medium is continuously condensed and returned to the liquid portion thereof.
Inventors
- 👤 E Arenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:26
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2209/00; F17C2209/22; F17C2209/228; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2227/00; F17C2227/03; F17C2227/0302
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
The method of claim 1 wherein the heating medium liquid is a material which when vaporized has a condensing heat transfer coefficient of at least 500 btu/hr-ft2-*F.
Claim 2
Dependent Claim
12 words
The method of claim 2 wherein the heating medium liquid is water.
Claim 3
Independent Claim
138 words
A method of vaporizing and superheating a stream of cryogenic fluid liquid comprising the steps of: continuously heating a body of heating medium liquid in the lower portion of a closed vessel thereby vaporizing a portion thereof; passing said stream of cryogenic fluid liquid through a heating coil disposed in heat exchange relationship with said body of heating medium liquid so that the stream of cryogenic fluid liquid is heated and at least partially vaporized; and passing the stream of heated and partially vaporized cryogenic fluid through a heating coil disposed in the upper portion of said vessel in heat exchange relationship with said vaporized heating medium so that the stream of crYogenic fluid is fully vaporized and superheated and so that the vaporized heating medium is continuously condensed and returned to the body of heating medium liquid.
Claim 4
Dependent Claim
27 words
The method of claim 4 wherein said heating medium liquid is a material which when vaporized has a condensing heat transfer coefficient of at least 500 btu/hr-ft2-*F.
Claim 5
Dependent Claim
12 words
The method of claim 5 wherein the heating medium liquid is water.
Claim 6
Dependent Claim
176 words
Apparatus for vaporizing and superheating a stream of cryogenic fluid liquid comprising: a closed vessel having a lower portion for containing a body of heating medium liquid and an upper portion for containing heating medium vapor; means for heating said body of heating medium liquid and continuously vaporizing portions thereof disposed within the lower portion of said vessel; a first cryogenic fluid heating coil disposed within said vessel beneath the surface of and in heat exchange relationship with said body of heating medium liquid so that cryogenic fluid passing therethrough is heated and at least partially vaporized; and a second cryogenic fluid heating coil disposed within said vessel above the surface of said body of heating medium liquid and in heat exchange relationship with said heating medium vapors, said second cryogenic fluid heating coil being serially connected to said first cryogenic fluid heating coil so that the heated and partially vaporized cryogenic fluid passing therethrough is completely vaporized and superheated and heating medium vapors are continuously condensed and returned to said body of heating medium liquid.
Claim 7
Dependent Claim
160 words
Apparatus for vaporizing and superheating a stream of cryogenic fluid comprising: a closed vessel having a lower portion for containing a body of water and an upper portion for containing steam; means for heating said body of water and continuously converting portions thereof into steam disposed within the lower portion of said vessel; a first cryogenic fluid heating coil disposed within said vessel beneath the surface of and in heat exchange relationship with said body of water so that cryogenic fluid passing therethrough is heated and at least partially vaporized; and a second cryogenic fluid heating coil disposed within said vessel above the surface of said body of water and in heat exchange relationship with said steam, said second cryogenic fluid heating coil being serially connected to said first cryogenic fluid heating coil so that heated and partially vaporized cryogenic fluid passing therethrough is completely vaporized and superheated and steam is continuously condensed and returned to said body of water.
Claim 8
Dependent Claim
48 words
The apparatus of claim 8 which is further characterized to include means for dumping said body of water from said closed vessel when the temperature of said body of water reaches a preselected minimum level thereby preventing said body of water from forming ice and damaging said vessel.
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |