US3652066A - Packing for a cooling tower - Google Patents

Packing for a cooling tower Download PDF

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Publication number
US3652066A
US3652066A US52468A US3652066DA US3652066A US 3652066 A US3652066 A US 3652066A US 52468 A US52468 A US 52468A US 3652066D A US3652066D A US 3652066DA US 3652066 A US3652066 A US 3652066A
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United States
Prior art keywords
arrangement
set forth
strip
strips
projections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US52468A
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English (en)
Inventor
Heinz Faigle
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32237—Sheets comprising apertures or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32255—Other details of the sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32408—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32425—Ceramic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32483—Plastics

Definitions

  • a packing of the invention for a cooling tower which provides guidance for a descending liquid in contact with a gas, is made up of a plurality of guide elements of sheet material fixedly connected to each other, each element including a plurality of horizontally elongated vertically offset strip portions.
  • a first strip portion has a plurality of angularly offset longitudinal sections so as to be accordion-pleated, corrugated, or undulating.
  • a second strip portion defines a vertically extending surface. Respective sections of the first-mentioned strip portion constitute hollow, vertically open projections projecting from the vertically extending surface.
  • FIG. 1 shows an element of a cooling tower packing in fragmentary perspective view
  • FIGS. 2 and 3 show modifications of the device of FIG. 1 in corresponding views
  • FIGS. 4 to 6 illustrate additional cooling tower elements in plan view
  • FIGS. 7 to 9 show the devices of FIGS. 4 to 6 in respective sections on the lines Vll-Vll, VlllVlll, and lX-IX;
  • FIG. 10 illustrates yet another cooling tower element of the invention in fragmentary perspective view
  • FIG. 11 is a top plan view of the device of FIG. 10;
  • FIG. 12 shows the device of FIG. 11 in elevational section on the line Xll-Xll;
  • FIG. 13 shows a tower packing assembled from elements of the type shown in FIGS. 10 to 12 in plan view.
  • the cooling tower element seen in FIG. 1 consists of two vertically spaced, flat metal strips 1, 2 horizontally elongated in a common upright plane, and another horizontal strip 3 of the same material folded in accordion fashion and having a vertical width sufficient that respective terminal portions of each fold 4 in the strip 3 are superimposed on opposite edge portions of the strips 1, 2 and secured to the flat strips by spot welds, not seen in the drawing.
  • the several flat sections of the strip 3 are on one side of the common vertical plane of the strips 1, 2 and are separated by transverse creases.
  • a multiplicity of elements identical with the one shown in FIG. 1 are normally assembled in a cooling tower in a manner partly illustrated in FIG.13 with reference to a modified embodiment of the invention.
  • Groups of elements are superimposed in spaced relationship so that the strips 1, 2 of all ele ments of the group extend in a common vertical plane to form an apertured sheet while the accordion folded strips 3 may project from the plane in one direction or partly in one and partly in the other direction.
  • the lower edges 5 of the lower fiat strips 1 and the lower edges 5 of the folded strips 3 are freely exposed to the ambient gas, normally air, and are toothed or scalloped to impede the flow of water along the edges, as shown in more detail in my simultaneously filed application Ser. No. 52,165 for a Heat Exchanger for Gas and Liquid.
  • each strip 1, 2, 3 is preferably the same so that the total height H of the element is slightly less than 311.
  • the height H may be of the order of 10 to 15 cm., and but a very small fraction of the horizontal length of the element.
  • Sheets of spacedly superimposed elements are juxtaposed so as to be distributed as uniformly as possible over the cross section of the tower, and the liquid to be cooled is fed to the top edges of the sheets from perforated, horizontal distributor pipes.
  • the water descends in a thin film over the strip 2 of each topmost element, then to the folds 4 of the folded sheet 3.
  • Some of the liquid finds its way to the exposed, toothed edge 5' of the folded sheet, and is discharged from the edge in the form of drops which fall on a lower folded strip 3 whereby they are broken up and further descend in the tower either in the form of droplets suspended in the ambient gas, such as air rising in the tower by natural of forced draft, or by flowing in a film along lower elements.
  • the portion of the liquid which reaches the lower fiat strip 1 of an element is similarly released from the toothed bottom edge 5 of the latter strip and impinges on the top strip 2 of a subjacent element.
  • the water cooled partly by thermal contact with the air and partly by loss of thermal energy due to evaporation is collected in a pan at the bottom of the tower and withdrawn for further use by means of a pump.
  • the heated and humidified gas escapes from the open top of the tower.
  • FIG.1 The arrangement described and partly illustrated in FIG.1 makes it impossible for the descending liquid to collect in preferred flow paths or channels in which the thickness of the liquid film is relatively great. It has been found that the overall coefficient of heat transfer in cooling towers equipped with vertically spaced elements of the type illustrated in FIG.1 is significantly higher than in otherwise similar towers in which the liquid flows along ribs of corrugated sheet material even when channeling is impeded by the shape of the corrugations as shown in my afore-mentioned patent. The partial dispersion of the descending liquid in the ambient gas in the form of drops and droplets is thought to contribute materially to the observed improvement.
  • the element seen in FIG.2 has a vertically central flat strip 2' and two accordion-pleated strips 3 respectively spotwelded to the two vertically offset horizontal edges of the flat strip 2.
  • the folds in the two strips 3 are vertically aligned so that drops discharged from the lower edge of the upper strip 3 fall freely over the distance F to the upper edge of the lower folded strip 3. Even when the distance F is relatively small, contact between the liquid and the ambient gas is enhanced by the drop discharge from the upper folded strip 3'.
  • the element illustrated in FIG.3 is closely similar in its structure to that seen in FIG.1 and almost identical in its function. It is a unitary body of metal shaped between stamping dies on a power press. As the initially flat and relatively wide metal band passes through the press, two longitudinal rows of spacedly aligned slots are cut into the band, the slots of each row being transversely aligned with the slots of the other row, and the middle strip 3" separated by the rows of slots from the marginal strips 1", 2" is bent out of the original plane of the band to form hollow, vertically open projections analogous to the accordion folds shown in FIGS.1 and 2.
  • More than three strips may be vertically superimposed in a cooling tower element of the invention, and the combination of flat and folded strips may take many forms of which only three are shown in FIGSA to 9.
  • the folding pattern also may be varied as is seen in these Figures.
  • the element seen in FIGSA and 7 has four superimposed strips, two fiat strips 2' being respectively at the top and bottom of the element, and two folded strips 3'" being interposed between the flat strips in such a manner that a hollow projection of one folded strip 3'" projects from the common vertical plan of the fiat strips 2'- and an adjacent hollow projection of the other folded strip projects in the opposite direction.
  • Spot welds connect the terminal portions of folds in each element 3' to corresponding portions of the other folded element and to adjacent edges of the flat strip, all welds being located substantially in the common plane of the flat strips.
  • FIGS.5 and 8 differs from that described with reference to FIGSA and 7 by having vertically alternating flat strips 2" and folded strips 3", adjacent projections of the folded strips extending in opposite directions from the common plane of the flat strips so as not to interfere with the free fall of drops from the lower edges of the folded strips to corresponding strips ofthe aligned, next lower element.
  • the substantially identical folded strips 3" and 3 have recurring longitudinal portions which are located in the common vertical plane of the flat strips 2', 2", and separate two folded portions which project from the plane in opposite directions. As is evident from FlGS.7 and 8, no two projections of the element are vertically aligned.
  • the exposed creases of the deepest folds are joined by spot welds, as is best seen in FlG.l3 to form a three-dimensional network of elements which may fill the cooling tower from wall to wall. While the arrangement offers only minimal resistance to the upward flow of air, water descending in the form of drops is unlikely to reach the bottom pan of the tower without impinging on one or several of the elements. The probability of catching such descending drops is further increased by slanting the portions of the strips which form hollow projections so as to make them oblique to the vertical plane of the central strip, as is best seen in FIG.l2. The vertically offset edges of each strip are thus also offset transversely in a horizontal direction.
  • the flat and folded strips of the invention may be combined in many patterns other than those illustrated to provide a system of vertically spaced guide surfaces downwardly terminating in free edges which may be toothed, and from which the descending liquid must fall freely in the form of dro 5 until it impin es on another element.
  • a guide arrangement for guiding a liquid descending under the force of gravity while in contact with a gas comprising a plurality of guide elements of sheet material fixedly connected to each other, each element including a plurality of horizontally elongated, vertically offset strip portions, a first one of said strip portions having a plurality of angularly offset longitudinal sections, a second strip portion defining a vertically extending surface, respective sections of said first strip portion constituting hollow, vertically open projections projecting from said vertically extending surface.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Finishing Walls (AREA)
US52468A 1969-07-14 1970-07-06 Packing for a cooling tower Expired - Lifetime US3652066A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT672269A AT313936B (de) 1969-07-14 1969-07-14 Rieseleinbau, insbesondere für Kühltürme

Publications (1)

Publication Number Publication Date
US3652066A true US3652066A (en) 1972-03-28

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US52468A Expired - Lifetime US3652066A (en) 1969-07-14 1970-07-06 Packing for a cooling tower

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AT (1) AT313936B (de)
DE (1) DE2032293A1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224257A (en) * 1979-04-19 1980-09-23 Robinson Elbert W Cooling tower construction and fill
DE2942481A1 (de) * 1979-10-20 1981-04-30 Bayer Ag, 5090 Leverkusen Rieselfuellung fuer stoffaustauschkolonnen
US4385012A (en) * 1980-01-28 1983-05-24 Ronald Priestley Phase-contacting apparatus
US4497751A (en) * 1981-07-30 1985-02-05 Sulzer Brothers Limited Zig-zag profile packing and method of making
US5057250A (en) * 1990-11-27 1991-10-15 Glitsch, Inc. Tower packing with small louvers
US5080836A (en) * 1990-11-27 1992-01-14 Glitsch, Inc. Tower packing with small and large louvers
US5185106A (en) * 1990-11-27 1993-02-09 Glitsch, Inc. Tower packing with small louvers and mixing method
US5188773A (en) * 1990-11-27 1993-02-23 Glitsch, Inc. Tower packing with small and large louvers and mixing method
US5204027A (en) * 1992-02-04 1993-04-20 Armstrong Charles M Fluid contact panels
FR2871225A1 (fr) 2004-06-08 2005-12-09 Climespace Sa Procede et systeme d'alimentation en eau de tours aerorefrigerantes
US20100213625A1 (en) * 2007-03-09 2010-08-26 Ludovic Raynal High performance structured packing for fluid exchange column and fabrication method
WO2012025696A1 (fr) 2010-08-25 2012-03-01 Climespace Plaque d'ecoulement pour tour aerorefrigerante et tour aerorefrigerante la comportant
NL2007827C2 (en) * 2011-11-21 2013-05-23 Oxycom Beheer Bv Heat exchange matrix.
US20150336079A1 (en) * 2013-08-30 2015-11-26 Beijing Zehua Chemical Engineering Co., Ltd. Tower packing element, tower packing, and packing tower and mixer comprising the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012793C2 (de) * 1980-04-02 1982-03-25 Carl Munters-Euroform Gmbh & Co Kg, 5100 Aachen Füllkörper
NL8301901A (nl) * 1983-05-27 1984-12-17 Fdo Techn Adviseurs Inrichting voor het uitvoeren van een stofwisselingsproces.
US4670196A (en) * 1985-09-05 1987-06-02 Norton Company Tower packing element
ES2148302T3 (es) * 1994-03-09 2000-10-16 Sulzer Chemtech Ag Elemento estructural plano y guarnecido a partir del mismo.
WO2009009594A1 (en) * 2007-07-09 2009-01-15 Chart Industries, Inc. Plate fin fluid processing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650140A (en) * 1921-11-25 1927-11-22 Air Reduction Heat-interchange device
US3235234A (en) * 1963-02-11 1966-02-15 Pacific Flush Tank Co Apparatus for aerating water
US3281307A (en) * 1962-11-05 1966-10-25 Dow Chemical Co Packing
US3540702A (en) * 1968-08-22 1970-11-17 Nippon Kokan Kk Multi-wave packing material and a device for utilizing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650140A (en) * 1921-11-25 1927-11-22 Air Reduction Heat-interchange device
US3281307A (en) * 1962-11-05 1966-10-25 Dow Chemical Co Packing
US3235234A (en) * 1963-02-11 1966-02-15 Pacific Flush Tank Co Apparatus for aerating water
US3540702A (en) * 1968-08-22 1970-11-17 Nippon Kokan Kk Multi-wave packing material and a device for utilizing the same

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224257A (en) * 1979-04-19 1980-09-23 Robinson Elbert W Cooling tower construction and fill
DE2942481A1 (de) * 1979-10-20 1981-04-30 Bayer Ag, 5090 Leverkusen Rieselfuellung fuer stoffaustauschkolonnen
US4385012A (en) * 1980-01-28 1983-05-24 Ronald Priestley Phase-contacting apparatus
US4497751A (en) * 1981-07-30 1985-02-05 Sulzer Brothers Limited Zig-zag profile packing and method of making
US5057250A (en) * 1990-11-27 1991-10-15 Glitsch, Inc. Tower packing with small louvers
US5080836A (en) * 1990-11-27 1992-01-14 Glitsch, Inc. Tower packing with small and large louvers
US5185106A (en) * 1990-11-27 1993-02-09 Glitsch, Inc. Tower packing with small louvers and mixing method
US5188773A (en) * 1990-11-27 1993-02-23 Glitsch, Inc. Tower packing with small and large louvers and mixing method
US5204027A (en) * 1992-02-04 1993-04-20 Armstrong Charles M Fluid contact panels
FR2871225A1 (fr) 2004-06-08 2005-12-09 Climespace Sa Procede et systeme d'alimentation en eau de tours aerorefrigerantes
US20100213625A1 (en) * 2007-03-09 2010-08-26 Ludovic Raynal High performance structured packing for fluid exchange column and fabrication method
US8646758B2 (en) * 2007-03-09 2014-02-11 Ifp High performance structured packing for fluid exchange column and fabrication method
WO2012025696A1 (fr) 2010-08-25 2012-03-01 Climespace Plaque d'ecoulement pour tour aerorefrigerante et tour aerorefrigerante la comportant
NL2007827C2 (en) * 2011-11-21 2013-05-23 Oxycom Beheer Bv Heat exchange matrix.
US9404689B2 (en) 2011-11-21 2016-08-02 Oxycom Beheer B.V. Heat exchange matrix
US20150336079A1 (en) * 2013-08-30 2015-11-26 Beijing Zehua Chemical Engineering Co., Ltd. Tower packing element, tower packing, and packing tower and mixer comprising the same
US10052609B2 (en) * 2013-08-30 2018-08-21 Beijing Zehua Chemical Engineering Co., Ltd. Tower packing element, tower packing, and packing tower and mixer comprising the same

Also Published As

Publication number Publication date
AT313936B (de) 1974-03-11
DE2032293A1 (de) 1971-04-15

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