US1520125A

US1520125A - Water-cooling tower

Info

Publication number: US1520125A
Application number: US484102A
Authority: US
Inventors: Fred W Haas
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-07-12
Filing date: 1921-07-12
Publication date: 1924-12-23
Anticipated expiration: 1941-12-23

Description

Dec. 23, 1 924. f 1,520,125

F. w. HAAS I WATER COOLING TOWER Original Filed y 12 1921 2 Sheets-Sheet 1 F. W. HAAS WATER COOLING TOWER Original Filed y 12, 1921 2 Sheets-Sheet 2 6 v. -T I*V n 1111 mi -111. L U 5 all T 6 III [5 29 r 6 I0 1 5' Q 7 s l l2 INv:--ro|2 QTWM P awafl w Patented Dec. 23, 1924.

UNITED STATES FRED W. HAAS, OF PITTSBURGH, PENNSYLVANIA.

WATER-COOLING TOWER.

Application filed-July 12, 1921, Serial No. 484,102. Renewed October 80, 1924.

To all whom it may concern:

Be it known that I, FRED W. HAAS, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Water-Cooling Towers, of which the following is a specification.

My invention relates to water-cooling towers and its objects are to provide improved means for the escape of heat therefrom, for bringing air into contact with the hot water spray, and for preventing the spray or fine sheets of water from blowing out through the louvres. Other objects appear hereinafter.

Referring to the accompanying drawings, Fig. 1 is a central vertical section of a watercooling tower containing some of the said improvements; Fig. 2, a top plan view of a portion of the tower; Fig. 3, a vertical section of Fig. 2 on the line IIIIII; Fig. 4, a side view of one of the spraying devices: Fig. 5, a vertical cross-section of the central portion of the upper part of the tower; and Fig. 6, a sectional fragmentary view showing a modification of my invention.

On the drawings, 1 and 2 designate respectively the upper and the next lower sections of a water-cooling tower, the lower section being shown broken away. I do not limit my invention to the use of two sections as it may contain only one section or several superposed sections. Each section has a number of sides 3 inclined inwardly and upwardly so as to form frustums of pyramids. The sides are louvres of any suitable type.

The top of section 1 is provided with a series of horizontal pans 4 arranged side by side and supported in any suitable manner, as by the joists or cross-pieces 5. Adjacent cross-pieces 5 are spaced apart so as to provide open spaces 6 between adjacent pans for the escape of heat from the section 1.

A water-receiving trou h 7 lies above the pans 4 and transversely t ereof, and is supplied with water by the pipe 8. The water from the trough flows over its sides into the pans 4. The u per edges of the trough are, directly over t e pans 4, rovided with depressions or notches forming teeth 9. The edges of the trough directly over the spaces between the pans are not depressed or notched, and a strip 10 is laid on the said edges so as to raise their height and prevent water flowing over the trough into the same when the water sup lied to the trough is temporarily increased.

In the section 2 the pans 4 need not be spaced apart. There are pendant from the bottoms of the pans 4 a number of spraying devlces 11, which are downwardly tapered tubes of sheet-metal each having a sprayforming deflector 12 supported at the lower end of a w1re 13 extending down through the tube and below its lower end. The hot water falling from the deflectors becomes finely divided sprays which are condensed by the air passing through the louvres, the

. condensed water from the pans in one section falling into the pans of the next lower section.

In order to further cool the spray, I supply numerous small jets of air to the interior of the sections. The jets may be supplied from any number of supply pipes lying in any dlrection in the sections, but I have shown them supplied by one vertical pipe 14 extending up through the sections and provided with numerous small holes 15 from which small jets of air may flow into contact with the falling spray. Air is supplied 'to the pipe 14: by any suitable means, as the blower 16.

In case of strong winds blowing through the sections or if the blasts of air from the plpe 14 cause the spray to be driven out through the louvres, I may provide wire Screens within the sections, inclined in the general direction of the adjacent sides and supported a few inches from the louvres. On Fig. 6, I have shown only one screen 17. The screens should have a fine mesh, onefourth inch or smaller. The spray striking the screens adheres to it and flows downwardly. By reason of the small size of the mesh and the. inclination of the screens, the water which passes over the open spaces of the screens is'blown against the lower wires of the spaces, and continues its way downward to the next horizontal wire. If the screens were vertical, the water clin 'ng to the horizontal wires would be blown eyond the screen.

I claim 1. In a' water-cooling tower, a hollow section, a series of open-top pans supported at the top of the section and having spraying eenl pans beilw sparated by open spaces, and a water supp y trou h lying transversely across the pans and a )ove the same having depressions in its edges directly over the pans. the edges directly over the s )aces between the pans not being depresse 2. In a \t'ater-cmiling tower, a hollow section, a series of open-top pans supported at the top of the section and having spraying devices pendantfrom their bottoms, adjacent pans being separated by open spaces, a water supply trough lying transversely across the pans and above the same and having depressions in its edges directly over the pans, the edges directly over the spaces between the pans not being depressed, and a strip covering the said edges to allow the water-level to rise in the trough temporarily without overflowing into the said spaces.

In a water-cooling tower, a hollow section having a louvreside, a pan'supporled at the top of the section and having water spraying devices pendant from its bottom, and a relatively fine-mesh screen adjacent to the said side and inclined inwardly and upwardly.

4. In a liquid-cooling apparatus, a pan therein having an opening in its bottom, a concave spreader below the opening arranged to receive into its concavity the liquid from the opening and turn it into spray as it flows over the edge of the spreader.

Signed at Pittsburgh, Penna, this 8th day of. July, 1921.

FRED W. HAAS.