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Publication numberUS2445908 A
Publication typeGrant
Publication dateJul 27, 1948
Filing dateMay 23, 1947
Priority dateMay 23, 1947
Publication numberUS 2445908 A, US 2445908A, US-A-2445908, US2445908 A, US2445908A
InventorsFlon James G De, George W Meyer
Original AssigneeFluor Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mechanical draft water-cooling tower
US 2445908 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

July 27, 1948.

J. G. DE FLON EI'AL MECHANICAL DRAFT WATER COOLING TOWER Original Filed June 15, 1945 W & 3% ha .w. w

HTTOEAEY Patented July 27, 1948 I MECHANICAL DRAFT WATER-COOLING TOWER James G. De Flon, Los Angeles, and George W. Meyer, North Hollywood, Calif., assignors to The Floor Corporation, Ltd., Los Angeles, Calif.,

a corporation of California Continuation of application Serial No. 599,682,

June 15, 1945. This application May 23, 1947,.

Serial No. 749,987

, 6 Claims. 1

This invention has to do generally with immovements in mechanical draft water cooling towers, particularly of the multiple cell type comprising a continuous succession of chambers or cells having bottom'side wall inlets through which air is taken to flow upwardly through the cells,

counter-currently to the down-flowing water.

Our general and primary object is to improve such mechanical draft cooling towers with respect both to structural characteristics, and also the air entrance and distribution in the cells,to the end that the operating efficiency 'is materially improved. Certain aspects and advantages of the invention are applicable to both forced draft towers, i. e. in which the air is discharged through the. cells by fans in their side walls, and also to induced draft towers, i. e. in which fans posi- I tloned at the tops of the cells induce upward air inlet thus extending along and being confined to the straight opposite sides of the cells. It has been found that with such arrangement of the inlets, the air rising within the cells does not become distributed across their entire cross-sectional areas with the uniformity required for most efiicient heat exchange between the total quantities'of water and air flowing through the cells. channel or center toward the interior of each cell, leaving relatively little and low velocity air flow in the comer areas of the cell. Thus, with provision made for uniform water distribution across the cell area, the quantities of air in the comer spaces are inadequate to cool to thefmaximum possible temperature the water which they contact, whereas the air flowing through the central portion of the cell may be in excess of that required for complete cooling of the water which it contacts.

from the conventional rectangular cross-section cessive cells, their outer walls include angular sections occupying what normally would be the corner areas of rectangular cells, and forming in the tower structure vertically extending recesses from which air is taken into the cells. Thusthe angular wall sections eliminate the usual corner spaces in the cell, and serve to contain inlets which, together with inlets in the extreme outer side walls, substantially extend the locations of air entry about the cell's periphery. Preferably the cells are given octagonal shape so that in. their contiguous arrangement, the adjacent angular wall sections form V-shaped recesses from which air is drawn into the corners adjacent ends of the cell. i

For further details reference is had to the accompanying drawing illustrative of the invention in one of its typical and preferred forms. In the drawing:

I Fig. 1 is a perspective view showing a two-cell tower;

Fig. 2 is a vertical cross-section on line 2-4 of Fig. 1; and

Fig. 3 is a reduced scale cross-section on line 33 of Fig. 2, no showing being made in this view of the interior decking and baflles.

As illustrative, the invention is shown to be embodied in an induced draft towerhaving two The difficulty is that the air flow tends to Accordingly, at the cell juncture, the corner walls In accordance with the invention we have.

changed the shape and formations of the cell in a manner resulting in substantial elimination of the described conditions in the corner areas, and in so doing have retained the cells in contiguous or in continuously successive "arrangement. Briefly, the invention contemplates departing cells, generally indicated ,at I0 and II, it being understood that the showing is typical only and that any greaternumber of cells may be em-' ployed, depending upon the required water cooling capacity of the tower. As best illustrated in,

Fig. 3, adjacent cells may have a common vertical end wall I2 and individually the cells are octagona1 in shape and formed by outer side walls I3,

end walls l4 and the angular corner walls I5.

Above the inlets I1, the side and angular walls are of closed (i. e.- no'n-apertured) formation.

l5 form V-shaped recesses I6 extending considerable distances inwardly of the tower and vertically throughout its height. As illustrated, air

.inlets are provided at I! in the bottom portions of the walls 13 at both sides of the cells, and also at 18 in the angular corner walls IS, the inlets in each instance beingbafiled by inclined louvers l 9.

Otherwise the individual cells may be constructedand equipped with respect to the fan arrangement and mounting, the water distributsuitable frame-supported mounting 23.

is supplied to the'cell below the usual drift elim- I shown to be closed at its top by a wall 20 containing a fan ring assembly 2! within which. is mounted the motor driven fan 22 carried or; a Wa er inators 24 to a header 25 from which the water is showered or sprayed over the filler decking or bailles 28 to be finally collected in the basin 21.

The down-flowing water is contacted by air being drawn by the fan upwardly through the cell chamber from locations of entry at both the v outer sides and corners of the cell, as permitted by the inlets l1 and i8. By reason of the recessed configuration of the cell arrangement at l6, air is drawn from a single recess space through the angular corner inlets of contiguous cells. Due to the cell formation and the inlet arrangement, we have been able to eliminate the dead air spaces existing in the corners of the conventional cells,

and have obtained a far greater uniformity of air distribution and flow through the cross-sectional areas of the cell by reason of the extended .relation of the air inlets to the cell perimeters.

From an operational standpoint, the effect is to produce a marked increase in the total heat transfer from water to air and in th performance efficiency of the tower,

' This application is a continuation of our application Serial No. 599,682, filed June 15, 1945, on Mechanical draft water cooling towers,

Y which has been abandoned.

We claim:

1. A mechanical draft water cooling tower comprising walls forming asuccession of alined cells, adjacent cells being separated by a common wall. means for mechanically inducing air flow upwardly through said cells, the side walls of the cells having portions extending inwardly of the tower at said common wall of successive cells, said inwardly extending portions of the walls containing inlets at the bottoms of the cells through which air is drawn into the cells, and said side walls above the inlets being of closed formation.

a 2. A mechanical draft water cooling tower comprising walls forming a succession of alined cells, adjacent cells being separated by a common wall, means .for, mechanically inducing air flow upwardly through said cells, the side walls of the cells having outer alined planar sections and continuing portions converging inwardly of the tower at said common wall of successive cells, said planar sections and converging portions containing inletsat 'thebottoms of the cells through which air is drawn into the cells, and said side walls above the inlets being-of closed formation.

3. A mechanical draft water cooling tower comprising walls forming a succession of alined cells, adjacent .cells being separated by a common wall,

. means for mechanically inducing air flow upwardly through said cells, the sid walls of the cells having portions converging inwardly of the tower to form V-shaped recesses extending substantially the height 6: said walls and having their apices alined with said common wall, said converging portions of the walls containing inlets atthe bottoms of the cells through which air is drawn into the cells, and said side walls above the inlets being of closed formation.

4. A mechanical draft water cooling tower comprising vertically extending walls forming a continuous succession of alined cells having substantially octagonal horizontal cross-section, adjacent cells being separated by a common wall,

means for mechanically inducing air flow u-pwardly through the cells, adjacent side walls of the cells converging inwardly of the tower to form V-shaped recesses having their apices alined with said common wall, the lower portions of said converging walls containing inlets through which air is drawn into the cells, and saidsid walls above theinlets' being of closed formation,

5. A mechanical draft water'cooling tower comprising vertically extending walls forming a continuous succession of alined cells having substantially octagonal horizontal cross-section, adjacent cells being separated by a common wall,

means for mechanically inducing air flow upwardly through the cells, adjacent side walls of the cells converging inwardly of. the tower to form V-shaped recesses having their apices alined with said common wall, the lower portions of said converging walls together with the lower outside sections of the walls between said convergent portions containing inlets through which air is drawn into the cells, and said side walls above the inlets being of closed formation.

6. A mechanical draft water cooling tower comprising vertically extending walls forming a continuous succession of alined cells having substantially octagonal horizontal cross-section, ad-

jacent cells being separated by a common wall,

JAMES G. DE FLON.

GEORGE W. MEYER.

REFERENCES CITED The following references are of record in the file of this patent: I

FOREIGN PATENTS Number Country Date 224,557 Great Britain May 21, 1925 284,018 Great Britain Jan. 23. 1928 536,882

Germany Oct. 28, 1931

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
DE536882C *Jun 3, 1928Oct 28, 1931Demag AgKaminkuehler fuer grosse Leistungen mit unter dem Berieselungseinbau und ueber dem Luftzufuehrungsraum Iiegenden, Iuftdurchlaessigen Wasserauffangtassen und Sammelrinnen
GB224557A * Title not available
GB284018A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3445093 *Oct 23, 1965May 20, 1969Josef RederCooling towers
US3779523 *Mar 8, 1972Dec 18, 1973Ecodyne CorpConcrete cooling tower
US3807145 *May 19, 1971Apr 30, 1974Baltimore Aircoil Co IncInjector type cooling tower
US4637903 *Oct 30, 1985Jan 20, 1987Ceramic Cooling Tower CompanyLightweight cooling tower
US4788013 *May 11, 1987Nov 29, 1988The Marley Cooling Tower CompanyFour-way airflow induced draft crossflow cooling tower
US5227095 *Nov 13, 1992Jul 13, 1993Curtis Harold DModular cooling tower
US5487531 *May 10, 1994Jan 30, 1996Tower Tech, Inc.Dual layered drainage collection system
US5487849 *Dec 3, 1993Jan 30, 1996Tower Tech, Inc.Pultruded cooling tower construction
US5545356 *Nov 30, 1994Aug 13, 1996Tower Tech, Inc.Industrial cooling tower
US5573713 *Jun 6, 1995Nov 12, 1996Emerson Electric Co.Humidifier having multi-stage fans
US5759451 *Mar 1, 1996Jun 2, 1998Emerson Electric Co.Humidifier having multi-stage fans
US5958306 *Oct 16, 1997Sep 28, 1999Curtis; Harold D.Pre-collectors for cooling towers
US6250610 *Aug 23, 1999Jun 26, 2001Delta Cooling Towers, Inc.Molded cooling tower
US6497401Jun 25, 2001Dec 24, 2002Delta Cooling Towers, Inc.Molded cooling tower
EP0357805A1 *Aug 6, 1988Mar 14, 1990The Marley Cooling Tower CompanyFour-way airflow induced draft crossflow cooling tower
WO1993010891A1 *Nov 24, 1992Jun 10, 1993Curtis Harold DModular cooling tower
Classifications
U.S. Classification261/23.1, 261/111, 261/DIG.110
International ClassificationF28C1/02
Cooperative ClassificationY10S261/11, F28C1/02
European ClassificationF28C1/02