Patent US3716045A successfully refreshed from Google Patents.
US3716045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: SIEGENER AG
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Filing: 1970-04-27
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Granted: 1973-02-13
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Expires: 1990-04-27
Abstract
Abstract A heat exchanger for cooling hot inert gases in a metal bath while producing steam in two serially arranged chambers each containing a metal bath and heat exchanging surfaces, the arrangement being such that the gases are introduced into the respective metal bath from above and the withdrawal of the gases from said chambers is effected above the level of the metal bath while the heat absorbing medium flows through the chambers in counter-current flow to the gases, and the exchanger surfaces are so designed that the metal bath temperature in the serially first chamber is the highest.
Inventors
- 👤 F Vollhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:07
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/06; F28; F28C; F28C3/00; F28C3/06; F28D; F28D15/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
244 words
A heat exchanger which guarantees a sufficient heat transfer for cooling hot inert gases passing through tubing in a standing liquid metal bath while producing steam, which includes: container means having at least first chamber means wherein temperature is higher and separate second chamber means, a standing liquid metal bath received and contained in each of said first and second chamber means, first conduit means leading into said first chamber means near the bottom thereof for conveying hot gases into the standing liquid metal bath in said first chamber means, second conduit means exteNding from above into and through the lower portion of said first chamber means for conveying saturated steam into and discharging superheated steam from said second conduit means, immersion pipe means leading from the upper portion of said first chamber means to said second chamber means near the bottom thereof for conveying hot gas above the standing liquid metal bath in said first chamber means into the standing liquid metal both in said second chamber means, evaporator pipe feeding and discharge lines extending in part through the standing liquid metal bath in said second chamber means, and discharge conduit means communicating with the upper portion of said second chamber means for withdrawing therefrom inert gas cooled relative to the metal bath in said first and in said second chamber means while avoiding any circulating metal bath and avoiding any Mammut-pumping effect and bubbling in any column through the liquid metal bath.
Claim 2
Dependent Claim
244 words
A heat exchanger which guarantees a sufficient heat transfer for cooling hot inert gases passing through tubing in a standing liquid metal bath while producing steam, which includes: container means having at least first chamber means wherein temperature is higher and separate second chamber means, a standing liquid metal bath received and contained in each of said first and second chamber means, first conduit means leading into said first chamber means near the bottom thereof for conveying hot gases into the standing liquid metal bath in said first chamber means, second conduit means exteNding from above into and through the lower portion of said first chamber means for conveying saturated steam into and discharging superheated steam from said second conduit means, immersion pipe means leading from the upper portion of said first chamber means to said second chamber means near the bottom thereof for conveying hot gas above the standing liquid metal bath in said first chamber means into the standing liquid metal both in said second chamber means, evaporator pipe feeding and discharge lines extending in part through the standing liquid metal bath in said second chamber means, and discharge conduit means communicating with the upper portion of said second chamber means for withdrawing therefrom inert gas cooled relative to the metal bath in said first and in said second chamber means while avoiding any circulating metal bath and avoiding any Mammut-pumping effect and bubbling in any column through the liquid metal bath.
Claim 3
Dependent Claim
244 words
A heat exchanger which guarantees a sufficient heat transfer for cooling hot inert gases passing through tubing in a standing liquid metal bath while producing steam, which includes: container means having at least first chamber means wherein temperature is higher and separate second chamber means, a standing liquid metal bath received and contained in each of said first and second chamber means, first conduit means leading into said first chamber means near the bottom thereof for conveying hot gases into the standing liquid metal bath in said first chamber means, second conduit means exteNding from above into and through the lower portion of said first chamber means for conveying saturated steam into and discharging superheated steam from said second conduit means, immersion pipe means leading from the upper portion of said first chamber means to said second chamber means near the bottom thereof for conveying hot gas above the standing liquid metal bath in said first chamber means into the standing liquid metal both in said second chamber means, evaporator pipe feeding and discharge lines extending in part through the standing liquid metal bath in said second chamber means, and discharge conduit means communicating with the upper portion of said second chamber means for withdrawing therefrom inert gas cooled relative to the metal bath in said first and in said second chamber means while avoiding any circulating metal bath and avoiding any Mammut-pumping effect and bubbling in any column through the liquid metal bath.
Claim 4
Dependent Claim
244 words
A heat exchanger which guarantees a sufficient heat transfer for cooling hot inert gases passing through tubing in a standing liquid metal bath while producing steam, which includes: container means having at least first chamber means wherein temperature is higher and separate second chamber means, a standing liquid metal bath received and contained in each of said first and second chamber means, first conduit means leading into said first chamber means near the bottom thereof for conveying hot gases into the standing liquid metal bath in said first chamber means, second conduit means exteNding from above into and through the lower portion of said first chamber means for conveying saturated steam into and discharging superheated steam from said second conduit means, immersion pipe means leading from the upper portion of said first chamber means to said second chamber means near the bottom thereof for conveying hot gas above the standing liquid metal bath in said first chamber means into the standing liquid metal both in said second chamber means, evaporator pipe feeding and discharge lines extending in part through the standing liquid metal bath in said second chamber means, and discharge conduit means communicating with the upper portion of said second chamber means for withdrawing therefrom inert gas cooled relative to the metal bath in said first and in said second chamber means while avoiding any circulating metal bath and avoiding any Mammut-pumping effect and bubbling in any column through the liquid metal bath.
Claim 5
Dependent Claim
46 words
A heat exchanger according to claim 1, which includes equalizing means communicating with a bottom portion in said first chamber means and a bottom portion in said second chamber means for equalizing the level of the metal baths in said first and second chamber means respectively.
Claim 6
Dependent Claim
33 words
A heat exchanger according to claim 2, in which said equalizing means includes conduit means interconnecting said first and second chamber means and check valve means interposed in said last mentioned conduit means.
Claim 7
Dependent Claim
34 words
A heat exchanger according to claim 1, which includes tank means common to and containing said first and second chamber means, and partition means separating said first and second chamber means from each other.
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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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |