US4427553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of solids from a cooling tower basin
Assignee: Phillips Petroleum Co
•
Filing: 1982-09-27
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Granted: 1984-01-24
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Expires: 2002-09-27
Abstract
Abstract Solids are removed from a cooling tower basin by using a perforated removal header in the basin in conjunction with a back flush flow.
Inventors
- 👤 Sharon R. Fore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:19
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/04; Y; Y10; Y10S; Y10S261/00; Y10S261/11
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
89 words
A method for removing substances in a cooling tower basin from the cooling tower basin comprising: (a) passing an aqueous flush fluid into the cooling tower basin through a perforated flush tube means which extends into the cooling tower basin, (b) agitating and mixing substances in the cooling tower basin with the aqueous flush fluid of (a), (c) withdrawing substances in the cooling tower basin and the aqueous flush fluid of (a) from the cooling tower basin, using a separate perforated removal tube means which extends into the basin.
Claim 2
Independent Claim
89 words
A method for removing substances in a cooling tower basin from the cooling tower basin comprising: (a) passing an aqueous flush fluid into the cooling tower basin through a perforated flush tube means which extends into the cooling tower basin, (b) agitating and mixing substances in the cooling tower basin with the aqueous flush fluid of (a), (c) withdrawing substances in the cooling tower basin and the aqueous flush fluid of (a) from the cooling tower basin, using a separate perforated removal tube means which extends into the basin.
Claim 3
Dependent Claim
22 words
A process in accordance with claim 1 wherein said substances in the cooling tower basin to be removed are water insoluble solids.
Claim 4
Dependent Claim
21 words
A process in accordance with claim 1 wherein said substances in the cooling tower basin to be removed are polymeric solids.
Claim 5
Independent Claim
105 words
A method to control the buildup of solids in a cooling tower basin comprising: (a) measuring a parameter of the effluent cooled water downstream from the cooling tower basin, (b) feeding an aqueous flush fluid into a perforated flush tube located in the cooling tower basin, (c) agitating and mixing the cooled water and solids in the cooling tower basin by the introduction of said aqueous flush fluid into said basin, (d) withdrawing a mixture of cooled water, solids, and aqueous flush fluid from the cooling tower basin via a perforated removal header until the parameter of (a) is at or near a desired level.
Claim 6
Independent Claim
105 words
A method to control the buildup of solids in a cooling tower basin comprising: (a) measuring a parameter of the effluent cooled water downstream from the cooling tower basin, (b) feeding an aqueous flush fluid into a perforated flush tube located in the cooling tower basin, (c) agitating and mixing the cooled water and solids in the cooling tower basin by the introduction of said aqueous flush fluid into said basin, (d) withdrawing a mixture of cooled water, solids, and aqueous flush fluid from the cooling tower basin via a perforated removal header until the parameter of (a) is at or near a desired level.
Claim 7
Dependent Claim
17 words
A method in accordance with claim 4 wherein the parameter of the effluent cooled water is pH.
Claim 8
Dependent Claim
17 words
A method in accordance with claim 4 wherein the parameter of the effluent cooled water is turbidity.
Claim 9
Dependent Claim
17 words
A method in accordance with claim 4 wherein the parameter of the effluent cooled water is conductivity.
Claim 10
Independent Claim
135 words
A method to control the buildup of solids in a cooling tower basin comprising: (a) measuring a parameter of the effluent cooled water downstream from the cooling tower basin, (b) feeding an aqueous flush fluid into a perforated flush tube located in the cooling tower basin, (c) agitating and mixing the cooled water and solids in the cooling tower basin by the introduction of said aqueous flush fluid into said basin, (d) withdrawing a mixture of cooled water, solids, and aqueous flush fluid from the cooling tower basin via a perforated removal header until the parameter of (a) is at or near a desired level, (e) recycling a portion of the mixture of cooled water, solids, and aqueous flush fluid withdrawn from the cooling tower basin to the cooling tower basin as aqueous flush fluid.
Claim 11
Independent Claim
135 words
A method to control the buildup of solids in a cooling tower basin comprising: (a) measuring a parameter of the effluent cooled water downstream from the cooling tower basin, (b) feeding an aqueous flush fluid into a perforated flush tube located in the cooling tower basin, (c) agitating and mixing the cooled water and solids in the cooling tower basin by the introduction of said aqueous flush fluid into said basin, (d) withdrawing a mixture of cooled water, solids, and aqueous flush fluid from the cooling tower basin via a perforated removal header until the parameter of (a) is at or near a desired level, (e) recycling a portion of the mixture of cooled water, solids, and aqueous flush fluid withdrawn from the cooling tower basin to the cooling tower basin as aqueous flush fluid.
Claim 12
Dependent Claim
57 words
A method in accordance with claim 4 or 8 wherein the measurement of the parameter of effluent cooled water is directed to an automatic controller which controls the amount of aqueous flush fluid fed into the cooling tower basin and the amount of the mixture of cooled water, solids and aqueous flush fluid withdrawn from the system.
Claim 13
Independent Claim
142 words
An apparatus for adding an aqueous flush fluid to a cooling tower basin having a floor comprising: (a) a perforated tube means positioned near the floor of the cooling tower basin, having a plurality of apertures which can pass a flow of said aqueous flush fluid, (b) a source of pressurized aqueous flush fluid, (c) a means for connecting said source of pressurized aqueous flush fluid in communication with the perforated tube means, (d) a fluid withdrawal conduit, (e) switch means operatively connected to said perforated tube means and permitting fluid communication between said perforated tube means and said source of pressurized aqueous flush liquid or said fluid withdrawal conduit, (f) controller means for operating said switch means such as to control the time said flush fluid is passed into said basin and the time a fluid is withdrawn from said basin.
Claim 14
Independent Claim
142 words
An apparatus for adding an aqueous flush fluid to a cooling tower basin having a floor comprising: (a) a perforated tube means positioned near the floor of the cooling tower basin, having a plurality of apertures which can pass a flow of said aqueous flush fluid, (b) a source of pressurized aqueous flush fluid, (c) a means for connecting said source of pressurized aqueous flush fluid in communication with the perforated tube means, (d) a fluid withdrawal conduit, (e) switch means operatively connected to said perforated tube means and permitting fluid communication between said perforated tube means and said source of pressurized aqueous flush liquid or said fluid withdrawal conduit, (f) controller means for operating said switch means such as to control the time said flush fluid is passed into said basin and the time a fluid is withdrawn from said basin.
Claim 15
Dependent Claim
26 words
An apparatus in accordance with claim 13 wherein said apertures are fitted with nozzles which direct a flow of aqueous flush fluid in a desired direction.
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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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |