US2151481A - Cooling tower - Google Patents

Description

March 21, 1939. I L. T MART 2,151,481

COOLING TOWER Original Filed Feb. 10, 1936 Q PM}, z

' y lupentor "flea/z 2 /1/47;

Patented Mar. 21, 1939 UNITED STATES COOLIN Leon T. Mart,

Mission Township,

G TOWER Johnson County, Kans.

Refiled for abandoned application Serial No.

63,168, February 10,

1936. This application March 28, 1938, Serial No. 198,547

4 Claims.

This invention relates to louvered cooling towers and the chief object of the invention is to reduce the drift loss caused by the cross flow of air through the towers.

Another object of the invention is to space the louver boards in such a manner that the drift loss at the bottom of the tower is reduced by so spacing of the outer edges the louvers as to increase the sharpness of the change of direction of the air flow by increasing the vertical height the moisture has to be carried by the air. The vertical spacing of the outer edges of the louvers is then gradually widened toward the top of the tower, since the drift loss is less and less from the bottom to the top of such a cooling tower.

This application is a refile for abandoned application 63,168 which was filed Feb. 10, 1936, allowed Jan. 21, 1937, and subsequently abandoned.

With the general objects named in view and others as will hereinafter appear, the invention consists in certain novel and useful features of construction and organization of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawing, in which:

Figure 1 is a side elevation of a louvered tower embodying the invention.

Figure 2 is a cross section through the tower.

Figure 3 is a top plan view of a corner of the tower.

In the said drawing, where like reference characters identify corresponding parts in all of the figures, I indicates a plurality of spaced uprights forming the skeleton or framework of a cooling tower, in the present instance only the corner posts being illustrated. Permanently or removably fastened between the uprights and spaced progressively increasing distances apart from the bottom to the top of the tower, are a series of inclined louver boards of equal width 2. The louvered walls are the same throughout the perimeter of the tower. Mounted adjacent the upper end of the tower in position for equal distribution of water over the cross-sectional area of the tower will be any suitable water distributing apparatus, not shown. 7

In the construction of a louvered tower of this type, it has heretofore been common practice to uniformly space the louvers from the top to the bottom of the tower. To avoid extreme water loss, a tower was designed for the average wind velocity at a given location in accordance with the capacity of the tower, and the louvers were then set' at a predetermined angle and were of predetermined width throughout the height of the tower.

It has been found that because the boards or louvers on the windward side of the tower direct the air downwardly, this effect being magnified by the inducing action of the falling water, there is a tendency for the water and air to pile up or drift from the upper windward side of the tower to the lower leeward side thereof, resulting in a maximum concentration of air and water at the leeward side of the tower. This tendency and accumulation or pressure effect causes the air exiting from the lowest louvers to be the heaviest laden as far as moisture content is concerned, the amount of moisture in the air growing less toward the top of the tower. The problem to be met was therefore to devise a means of increasing the deposition of water as the air exited between the louvers, and I have accomplished this by spacing the baffles or louvers with their outer edges close together at the point of greatest drift loss. The width of the louvers remaining constant, it will be apparent that the closer the baflles or louvers are spaced together if arranged parallel, or by a changing of their angle of inclination, to vary the vertical spacing of their outer edges, the degree or distance the water must be lifted to escape past the louver is regulated.

From the above description, it will be apparent that while I have described and illustrated the preferred embodiment, it is to be understood that I reserve the right to all changes within the spirit of the invention and without the ambit of the prior art.

I claim:

1. A cooling tower of the louvered type comprising a series of spaced uprights, and inclined louvers carried by the uprights, the vertical spacing between the outer edges of adjacent louvers progressively increasing from the bottom to the top of the tower.

2. A cooling tower of the louvered type comprising a series of spaced uprights, and inclined louvers carried by said uprights, said louvers being progressively having their outer edges spaced greater distances apart from the bottom to the top of the tower, and-all of said louvers being of substantially uniform width.

3. A cooling tower of the louvered type comprising a series of spaced uprights, and inclined louvers carried by said uprights, said louvers being progressively spaced greater distances apart from the bottom to the top of the tower, and all of said louvers being parallel.

4. A cooling tower of the louvered type comprising a series of spaced uprights, and inclined louvers carried by said uprights, said louvers being progressively spaced greater distances apart from the bottom to the top of the tower, and all of said louvers being of equal width and parallel to each other.

LEON T. MART.

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