US1027184A - Cooling-tower. - Google Patents

Description

B. H. GOFFEY.

000mm TOWER.

APPLICATION FILED FEB. 24, 1910.

Patented Ma 1 1912.-

WITNESSES B. H. COPPEY.

COOLING TOWER.

APPLICATION FILED FEB. 24, 1910.

1,027,184. I PatentedMay2L1912.

3 SHEETS-SHEET 2.

WITNESSES INVENTOR B. H'. GOFFEY.

COOLING TOWER.

APPLICATION FILED FEB. 24, 1910.

Patented May 21, 1912.

3 SHEETS-SHEET 3.

I INVENTOR 3 0 a w m ww F A z m W nna W .A Tr r 8 8 m m .w 7

are greatly exaggerated. Small perforations, slots and notches are commonly em-' "UNITED STATES PATENT oFFioE.

BARTON H. GOFFEY, OF ELIZABETH, NEW JERSEY, ASSIGNOR T0 MITCHELL-TAPPEN COMPANY, A CORPORATION OF NEW YORK.

COOLING-TOWER. A

To all whom it may concern:

Be it known that I, BARTON H. Comx,

a citizenof the United States, residing at Elizabeth, in the county of Union and State ofNew Jersey, have invented a new and useful Cooling-Tower, of which the following is a specification.

My invention relates to improvements in cooling towers,-with special reference to the air at maximum practical velocity,'in contactwith a-maximum areaof liquid surface, it followsthat the mechanical perfection of the-devices for producing the above conditions, determine the ratus. An ideal cooling surface should be so arranged that while resenting the maximum within thelimits of the apparatus.

possible exposure 0 liquid surface, it should occasion a minimum resistance to the passage of air currents. Tortuous (passages and abrupt turns should be avoide and maximum area of air passage consistent with maximum exposure should be sought. Prac- -tical considerations are minimum weight,

freedom from corrosion, accessibility for -cleaning and repairs, economy in cost, etc.

An ideal distributing system should be capable of spreading the liquidevenly over at all rates of flow If this is not accomplished there will obviously be a concentration of flow at certain points and the cooling surfaces,

9.. corresponding diminution at others; re-' sulting in a decreased ratiofof exposed liq I uid surface'to weightof liquid assing, and

a consequent fall in eflicienc dry spots appear in the cooling sur aces, the entire capacityof thetower is reduced in the proportion these spots bear to the. total area of cooling surface. Most systems of distribution are imperfect on neralv hydraulic princi ging rom suspended matter, their faults ployed, giving trouble from clogging unless theliquid is very pure.

c The. bject of my invention is to providev Specification of Letters Patent. Appllcatlonflled February 24, 1310. Serial No. 545,762.

eflicieney of the appai les, and when to t is is added clogcent sides of the shells 5 o -more perfect cooling surfaces and distributers on the principles as outlined above.

Reference being now had to the drawings,

and longitudinal sectional elevations of anatural draft tower embodying my improve ments, Fig. 1 being taken on line A-A of F g. 2, and Fig. 2 on line B-B of Fig. 1. Fig. 3 isa detail vertical sectional view of my cooler, embodying my improved distionof Fig. 3 on line CC. Fig; 5 is a plan of my primary distributer, showing it attached 'to the launder. Fig. 6 is a longitudinal section of Fig. 5 on line FF. Fig. 7 is a cross section on line E E Fig. 6. Fig. 8 1s a plan, of my secondary distributer. Fig. 9 a longitudinal section of Fig. 8 on line G-G, and F' 10 a cross-section of Fig. 9 on line H-'.

applied to a forced draft tower. In all views similar figures refer to the same part.

Considering Figs. 1 and 21 is the framing supporting the entire s'tructure,properly braced for wind pressure and dead load, it

and is footed on the ground outsidethe receiving basin 2, as shown. 3 is a sheathing inside the framework, of boards or corrugated steel, extending from the top of the tower to the coolers 4:. The plans show the tower made up of four coolers, though it is obvious'the number .may be increased or diminished as occasion requires.

gular shell 5, preferably of metal, open at with vertical parallel partitions 6 referably of wood, spaced uniformly y the separators 7, and supported by. the angles 8. The top of each partition supports a-series of secondary distributers 9,-which will be described in greater detail later on. Crossing the top of the partition at right angles,

ported at one end by the angle 11 and at the other end by a flange bolted to the shell 5, which has anopening, of section similar 'tothe distributer at this point. The adjaa pair of coolers together with the plate 12 form a gutter or are a series of primary distributers 10, sup- PatentedMay21, 1912.

Figures land 2 are respectively transverse tributers and cooling surfaces, taken on line D-D of Fig. 4. Fig. 4 is a sectional eleva- Fig. 11 is an elevation partly in section showing my de i can be either of structural steel or timber,

The coolers 4 are shown in greater detail I in Figs. Sand 4. They consist of a rectan- 5 both bottom and top. The shell is filled I Liquid is supplied through the pipe 14 and the flow controlled by the valve 15.

Returning to Figs. 1 and 2, it will be obvious that the separation of the four coolers by the spaces 17, gives the air currents 16 unimpeded entry at their lower ends from the four sides of each cooler. T air passes up between the partitions 6, becomes heated, enters the upper portion of the tower which forms a chimney and so a draft is produced to maintain the current. The liquid to be cooled enters at. the pipe 18, is distributed to the lauuders 13 by the branch pipes 14, from thence it flows into the primary distributers 10, from thence to the secondary distributers 9, thence down the cooling surfaces or partitions 6, from which it falls in the basin 2, which is maintained at the level VV-W and finally escapes from the system by thepipe 19. The application of these devices to a forced draft tower is shown at Fig. 11 in which the draft is mechanically produced by the fan 20 The functions of all other parts are substantially as above described. Referring particularly to Figs. 5, 6, and 7, the distributor is essentially a rectangular gutter composed of two parallel sides 21 joined by an inclined bottom 22. Boltedon the side of the launder 13 is the nozzle 23 registering with the opening in the plate 5 which corr sponds with the open end of the distributer 10. The theory is as follows. If the water level in the launder is X-X, then the entry head into the nozzle will be Y, andwater will enter with a. velocity due that head. If the gutter was of uniform section and frictionless, the flow would continue indefinitely at this velocity without pressure head and without any rise or fall of level in the gutter, and there would be consequently no flow over the edges. The gradual contraction of area however, due to the inclined bottom, produces a pressure head in the stream and a consequent rise in level which is uniform along the entire length of the gutter, thus producing an even overflow along the edges, and this overflow will be and the chimney eliminated.

uniform with variable velocities of entry. The water flowing down the sides 21, comes in contact with the serrated'piece 24 and drops off the points into the secondary distributers 9 (see Fig. A

The principle of action in the secondary distrilmters Figs. 8, 9 and 10 is similar to that described above. The bottom is inclined in both directions as the water enters at the center (see Fig. 4) in other respects the construction is identical with the primary distributers, and will be clearly understood from the drawings without further description. It will be obvious that these distributers are applicable to the top or dis tributing deck of atmospheric towers, in which the water showers down from deck to deck, and is cooled by horizontal air currents.

Having now described my invention,what I claim as new and desire to secure by Letters Patent is,

1. In a natural draft cooling-tower, open ended shells containing the cooling surfaces, arranged in pairs, whereby the shells form two walls of the distributing launder, substantially as described.

2. In a cooling device, a distributer having an open top gutter section of gradually decreasing depth and unbroken side walls.

3. In a cooling device, a distributer having an open top gutter section of adually decreasing depth in combination wlth an inlet nozzle, registering with an opening at the end of the distributer, substantially as shown and described.

4. In a cooling-tower, a distributer having an open top guttersection of gradually decreasing area, in combination with a serrated drip-bar, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses, on the 21st day of February, 191

BARTON H. COFFEY.

Witnesses:

A. BOULOGNE, LoUIs A. PHILLIPS.

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