US3833056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature cooling process and system
Assignee: Black Sivalls and Bryson Inc
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Filing: 1973-01-15
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Granted: 1974-09-03
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Expires: 1993-01-15
Abstract
Abstract A process and system for cooling a device subjected to high temperatures wherein a stream of coolant is flowed through the device. The resultant heated stream of coolant is passed in heat exchange relationship with a cooled stream of liquid heat transfer medium so that a quantity of heat is removed from the coolant substantially equal to the heat removed from the device. The stream of coolant is passed in heat exchange relationship with a heated stream of the liquid heat transfer medium so that the coolant is maintained at a desired temperature level and then the coolant is recirculated through the device.
Inventors
- 👤 Minn R Mc
- 👤 M Jamison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:29
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/10; F28D7/103; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; F28D21/00; F28D2021/0019
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
141 words
A process for cooling a lance subjected to high temperatures which comprises the steps of: a. flowing a stream of coolant having a melting point in the range of from about 270*F to about 600*F through said lance so that heat is transferred into the stream of coolant and the lance is cooled; b. passing the resultant heated stream of coolant in heat exchange relationship with a cooled stream of a liquid heat transfer medium so that a quantity of heat is removed from said stream of coolant substantially equal to the heat transferred thereinto from said lance; c. passing the stream of coolant in heat exchange relationship with a heated stream of the liquid heat transfer medium so that the stream of coolant is maintained at a desired temperature level; and d. recirculating the stream of coolant through said lance.
Claim 2
Dependent Claim
141 words
A process for cooling a lance subjected to high temperatures which comprises the steps of: a. flowing a stream of coolant having a melting point in the range of from about 270*F to about 600*F through said lance so that heat is transferred into the stream of coolant and the lance is cooled; b. passing the resultant heated stream of coolant in heat exchange relationship with a cooled stream of a liquid heat transfer medium so that a quantity of heat is removed from said stream of coolant substantially equal to the heat transferred thereinto from said lance; c. passing the stream of coolant in heat exchange relationship with a heated stream of the liquid heat transfer medium so that the stream of coolant is maintained at a desired temperature level; and d. recirculating the stream of coolant through said lance.
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein the coolant is a eutectic mixture of lead and bizmuth.
Claim 4
Dependent Claim
24 words
The process of claim 2 wherein the liquid heat transfer medium is high temperature heat transfer oil having a flash point above about 600*F.
Claim 5
Dependent Claim
143 words
A process for continuously cooling a lance for introducing materials into the interior of a highly heated chamber which comprises the steps of: a. flowing a stream of molten metal through said device so that heat is transferred into the stream of molten metal and the device is cooled; b. passing the resultant heated stream of molten metal in heat exchange relationship with a first stream of liquid heat transfer medium so that a quantity of heat is continuously removed from said stream of molten metal substantially equal to the quantity of heat transferred thereinto from said lance; c. passing the stream of molten metal in heat transfer relationship with a second stream of liquid heat transfer medium so that the stream of molten metal is maintained in the molten state; and d. continuously recirculating said stream of molten metal through said lance.
Claim 6
Dependent Claim
143 words
A process for continuously cooling a lance for introducing materials into the interior of a highly heated chamber which comprises the steps of: a. flowing a stream of molten metal through said device so that heat is transferred into the stream of molten metal and the device is cooled; b. passing the resultant heated stream of molten metal in heat exchange relationship with a first stream of liquid heat transfer medium so that a quantity of heat is continuously removed from said stream of molten metal substantially equal to the quantity of heat transferred thereinto from said lance; c. passing the stream of molten metal in heat transfer relationship with a second stream of liquid heat transfer medium so that the stream of molten metal is maintained in the molten state; and d. continuously recirculating said stream of molten metal through said lance.
Claim 7
Dependent Claim
16 words
The process of claim 4 wherein the molten metal has a melting point below about 600*F.
Claim 8
Dependent Claim
17 words
The process of claim 5 wherein the molten metal is a eutectic mixture of lead and bizmuth.
Claim 9
Dependent Claim
24 words
The process of claim 6 wherein the liquid heat transfer medium is high temperature heat transfer oil having a flash point above about 600*F.
Claim 10
Dependent Claim
31 words
The process of claim 7 wherein the first stream of liquid heat transfer medium is continuously circulated in a cooling circuit wherein it is cooled to a temperature of about 115*F.
Claim 11
Dependent Claim
31 words
The process of claim 8 wherein the second stream of liquid heat transfer medium is continuously circulated in a heating circuit wherein it is heated to a temperature of about 600*F.
Claim 12
Independent Claim
193 words
A system for cooling a lance subjected to extra high temperatures, said system including a lance having heat exchange passages for circulating a stream of coolant therethrough to remove heat therefrom and which comprises: a heated charge vessel for receiving and melting a charge of coolant, said charge vessel having coolant inlet and outlet connections disposed therein; first conduit means connected between the heat exchange passages of said lance and the coolant inlet and outlet connections of said charge vessel; first heat exchange means connected in said first conduit means for cooling the stream of coolant whereby a quantity of heat is removed therefrom substantially equal to the quantity of heat removed from said lance; second heat exchange means connected to said charge vessel and to said first conduit means for heating said charge vessel and said first conduit means whereby the stream of coolant is maintained at a desired temperature level; and pump means disposed in said first conduit means for circulating the stream of coolant through said conduit means, through the heat exchange passages of said lance, through the first and second heat exchange means and through the heated charge vessel.
Claim 13
Independent Claim
193 words
A system for cooling a lance subjected to extra high temperatures, said system including a lance having heat exchange passages for circulating a stream of coolant therethrough to remove heat therefrom and which comprises: a heated charge vessel for receiving and melting a charge of coolant, said charge vessel having coolant inlet and outlet connections disposed therein; first conduit means connected between the heat exchange passages of said lance and the coolant inlet and outlet connections of said charge vessel; first heat exchange means connected in said first conduit means for cooling the stream of coolant whereby a quantity of heat is removed therefrom substantially equal to the quantity of heat removed from said lance; second heat exchange means connected to said charge vessel and to said first conduit means for heating said charge vessel and said first conduit means whereby the stream of coolant is maintained at a desired temperature level; and pump means disposed in said first conduit means for circulating the stream of coolant through said conduit means, through the heat exchange passages of said lance, through the first and second heat exchange means and through the heated charge vessel.
Claim 14
Dependent Claim
103 words
The system of claim 10 wherein the first heat exchange means comprises: a heat exchanger for passing the stream of coolant in heat exchange relationship with a cooled stream of liquid heat transfer medium; means for cooling the stream of liquid heat transfer medium; second conduit means connected between said heat exchanger and said means for cooling the stream of liquid heat transfer medium; and pump means disposed in the second conduit means for continuously circulating the stream of liquid heat transfer medium through said second conduit means, said heat exchanger and said means for cooling the stream of liquid heat transfer medium.
Claim 15
Dependent Claim
23 words
The system of claim 11 wherein the means for cooling the stream of liquid heat transfer medium is an atmospheric air heat exchanger.
Claim 16
Dependent Claim
131 words
The system of claim 10 wherein the second heat exchange means comprises: said charge vessel including heat exchange passages disposed therein for circulating heated liquid heat transfer medium therethrough whereby said charge vessel is heated; said first conduit means including heat exchange passages for circulating heated liquid heat transfer medium therethrough whereby the conduit means are heated; a liquid heat transfer medium heater; third conduit means connected between the heat exchange passages of the charge vessel, the heat exchange passages of the first conduit means and the liquid heat transfer medium heater; and pump means disposed in said third conduit means for circulating a stream of liquid heat transfer medium through the third conduit means, said heater and the heat exchange passages of the charge vessel and the first conduit means.
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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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |