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US3887666A
Expired / Lapsed
US
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Cooling system
Assignee: Transelektro Magyar Villamossagi Kulkereskedelmi
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Filing: 1973-06-29
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Granted: 1975-06-03
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Expires: 1993-06-29
Abstract
Abstract An essentially vertical heat-transfer means in a cooling tower has associated therewith nozzles for spraying water on the exterior surfaces thereof. The nozzles are arranged at a plurality of levels and the nozzles at each level are controlled by a separate valve. Control means are provided so that the water nozzles can be brought into use in upward ascending sequence as the heat load on the system is increased, and vice versa. When the topmost part of the heat transfer means functions by aircooling only, the air transported through the top portion of the heat transfer means clings to the interior surface of the cooling tower. Consequently, this air which is relatively dry does not tend to corrode the interior of the tower, making it possible to construct the tower of steel.
Inventors
- 👤 Laszlo Heller
- 👤 Laszlo Forgo
- 👤 Janos Bodas
- 👤 Istvan Papp
- 👤 G Sz Agejev
- 👤 I A Alekszejev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:53
CPC Classifications
F; F28; F28D; F28D5/00; F28D5/02; Y; Y10; Y10S; Y10S165/00; Y10S165/90; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A cooling system for cooling a flow medium, comprising an essentially vertical heat-transfer means adapted for flow of said flow medium therethrough, means for transporting an air current past said heat transfer means, spray nozzles disposed at a plurality of levels and arranged for spraying water onto said heat transfer means, a plurality of valve means, the spray nozzles at each of said levels being associated with one of said valve means for permitting and preventing flow of cooling water therethrough, and a plurality of pumps for pumping the cooling water to the nozzles, the hydraulic capacities of said pumps being such that when all the pumps are operative the resultant water pressure is sufficiently high so that all of the nozzles are supplied with cooling water under pressure whereas when one or more of said pumps is inoperative the water pressure is lowered so that a number of the nozzles proportional to the number of operative pumps are supplied with cooling water under pressure.
Claim 2
Dependent Claim
165 words
A cooling system for cooling a flow medium, comprising an essentially vertical heat-transfer means adapted for flow of said flow medium therethrough, means for transporting an air current past said heat transfer means, spray nozzles disposed at a plurality of levels and arranged for spraying water onto said heat transfer means, a plurality of valve means, the spray nozzles at each of said levels being associated with one of said valve means for permitting and preventing flow of cooling water therethrough, and a plurality of pumps for pumping the cooling water to the nozzles, the hydraulic capacities of said pumps being such that when all the pumps are operative the resultant water pressure is sufficiently high so that all of the nozzles are supplied with cooling water under pressure whereas when one or more of said pumps is inoperative the water pressure is lowered so that a number of the nozzles proportional to the number of operative pumps are supplied with cooling water under pressure.
Claim 3
Dependent Claim
165 words
A cooling system for cooling a flow medium, comprising an essentially vertical heat-transfer means adapted for flow of said flow medium therethrough, means for transporting an air current past said heat transfer means, spray nozzles disposed at a plurality of levels and arranged for spraying water onto said heat transfer means, a plurality of valve means, the spray nozzles at each of said levels being associated with one of said valve means for permitting and preventing flow of cooling water therethrough, and a plurality of pumps for pumping the cooling water to the nozzles, the hydraulic capacities of said pumps being such that when all the pumps are operative the resultant water pressure is sufficiently high so that all of the nozzles are supplied with cooling water under pressure whereas when one or more of said pumps is inoperative the water pressure is lowered so that a number of the nozzles proportional to the number of operative pumps are supplied with cooling water under pressure.
Claim 4
Dependent Claim
165 words
A cooling system for cooling a flow medium, comprising an essentially vertical heat-transfer means adapted for flow of said flow medium therethrough, means for transporting an air current past said heat transfer means, spray nozzles disposed at a plurality of levels and arranged for spraying water onto said heat transfer means, a plurality of valve means, the spray nozzles at each of said levels being associated with one of said valve means for permitting and preventing flow of cooling water therethrough, and a plurality of pumps for pumping the cooling water to the nozzles, the hydraulic capacities of said pumps being such that when all the pumps are operative the resultant water pressure is sufficiently high so that all of the nozzles are supplied with cooling water under pressure whereas when one or more of said pumps is inoperative the water pressure is lowered so that a number of the nozzles proportional to the number of operative pumps are supplied with cooling water under pressure.
Claim 5
Dependent Claim
21 words
A cooling system as claimed in claim 1, wherein the uppermost nozzles are lower than the top of said heat-transfer means.
Claim 6
Dependent Claim
32 words
A cooling system as claimed in claim 2, wherein the uppermost nozzles are lower than the top of said heat-transfer means by about a quarter of the overall height of the latter.
Claim 7
Dependent Claim
102 words
A cooling system as claimed in claim 1 further comprising an outlet line connected to said heat-transfer means, and a thermostat in said outlet line, said thermostat controlling said valve means so that if the flow medium passing through the outlet line from the cooler increases in temperature the valve means open in succession to permit flow of cooling water to the nozzles at successively higher levels and if the flow medium passing through the outlet line from the cooler decreases in temperature the valve means close in succession to prevent flow of cooling water to the nozzles at successively lower levels.
Claim 8
Dependent Claim
20 words
A cooling system as defined in claim 1 wherein said means for transporting an air current is a cooling tower.
Claim 9
Dependent Claim
14 words
A cooling system as defined in claim 5, wherein said tower is of steel.
Claim 10
Dependent Claim
33 words
The cooling system as defined in claim 6, wherein said steel cooling tower is so dimensioned relative to the heat removed by said heat-transfer means that the flow of air therethrough is non-turbulent.
Claim 11
Dependent Claim
25 words
A cooling system as claimed in claim 1 wherein said nozzles corresponding to said inoperative pumps are in descending order from the uppermost level downward.
References Cited (Backward Citations)
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |