US3818870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for evaporative cooling of metallurgical units
Assignee: KUSTYKOVICH D
•
Filing: 1972-07-10
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Granted: 1974-06-25
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Expires: 1992-07-10
Abstract
Abstract A system for evaporative cooling of metallurgical units comprising closed natural circulation loops which consist of the elements being cooled and steam separators communicating with the elements being cooled via pipelines adapted for feeding water and discharging a steam-water mixture, provision is also made for water storage vessels adapted for feeding the device with the water, the vessels being arranged below the steam separators and connected by pipelines with a water supply and a jet pump introduced into the water feed pipeline of each circulation loop, the vessel and the jet pump being mounted so as to enable the pump to draw in the water into the circulation loop to offset its losses in the course of operation of the device, the present invention is directed toward a reduction in the cost of manufacture and operation of the device for evaporative cooling of metallurgical units.
Inventors
- 👤 O Filipiev
- 👤 V Lukashev
- 👤 J Raikovsky
- 👤 G Kudinov
- 👤 D Kutsykovich
- 👤 S Andoniev
- 👤 L Zilberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:21
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/10; F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1892
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
231 words
In a system for evaporative cooling of metallurgical units comprising, in combination: at least one closed natural circulation loop including therein an element being cooled and absorbing the heat flux; a steam separator operatively connected in said loop for separating steam from water and communicating by a pipeline with the element being cooled for feeding water and discharging a steam-water mixture, to the separator; a storage vessel for chemically purified deaerated make-up water including means for supplying the water to the system, the vessel comprising a unit separate from the steam separator, and positioned below the steam separator and including pipeline means operatively connecting the water supply of said vessel with said natural circulation loop; jet pump means operatively connected in said pipeline means and said natural circulation loop, communicating with said vessel and located below a connection for feeding a steam-water mixture to said separator at such a level that a hydrostatic pressure built up at the inlet of said jet pump means ensures the vacuum value necessary for delivering make-up water from said vessel to said closed circulation loop, said vessel being located in relation to the jet pump at a level which insures that make-up water supply to the closed circulation loop can be effected, said steam separator being connected in the natural circulation loop being connected by a pipe line to the upper part of said vessel.
Claim 2
Dependent Claim
231 words
In a system for evaporative cooling of metallurgical units comprising, in combination: at least one closed natural circulation loop including therein an element being cooled and absorbing the heat flux; a steam separator operatively connected in said loop for separating steam from water and communicating by a pipeline with the element being cooled for feeding water and discharging a steam-water mixture, to the separator; a storage vessel for chemically purified deaerated make-up water including means for supplying the water to the system, the vessel comprising a unit separate from the steam separator, and positioned below the steam separator and including pipeline means operatively connecting the water supply of said vessel with said natural circulation loop; jet pump means operatively connected in said pipeline means and said natural circulation loop, communicating with said vessel and located below a connection for feeding a steam-water mixture to said separator at such a level that a hydrostatic pressure built up at the inlet of said jet pump means ensures the vacuum value necessary for delivering make-up water from said vessel to said closed circulation loop, said vessel being located in relation to the jet pump at a level which insures that make-up water supply to the closed circulation loop can be effected, said steam separator being connected in the natural circulation loop being connected by a pipe line to the upper part of said vessel.
Claim 3
Dependent Claim
35 words
In a system as claimed in claim 1 in which the last-mentioned pipe line is connected to said separator above the connection of said separator to the steam-water pipe line from the element being cooled.
Claim 4
Dependent Claim
18 words
In the system as claimed in claim 1 in which said vessel is arranged above said jet pump.
Claim 5
Dependent Claim
23 words
In the system as claimed in claim 1 in which said vessel is disposed substantially at the same level as said jet pump.
Claim 6
Dependent Claim
30 words
In the system as claimed in claim 1 in which said vessel is arranged below said jet pump at a level limited by the vacuum valve produced by the pump.
References Cited (Backward Citations)
GB636604A
Cited
US3608526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |