EP0179149B1 - Plate for cooling tower, made of fibro-cement or similar material - Google Patents

Plate for cooling tower, made of fibro-cement or similar material Download PDF

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Publication number
EP0179149B1
EP0179149B1 EP85902503A EP85902503A EP0179149B1 EP 0179149 B1 EP0179149 B1 EP 0179149B1 EP 85902503 A EP85902503 A EP 85902503A EP 85902503 A EP85902503 A EP 85902503A EP 0179149 B1 EP0179149 B1 EP 0179149B1
Authority
EP
European Patent Office
Prior art keywords
plate
lines
recesses
cooling tower
points
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
Application number
EP85902503A
Other languages
German (de)
French (fr)
Other versions
EP0179149A1 (en
Inventor
Heinrich Klauss
Kurt Baarsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOSCHI PRODUKTIONS-GESELLSCHAFT MBH
Original Assignee
TOSCHI PRODUKTIONS-GESELLSCHAFT MBH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TOSCHI PRODUKTIONS-GESELLSCHAFT MBH filed Critical TOSCHI PRODUKTIONS-GESELLSCHAFT MBH
Priority to AT85902503T priority Critical patent/ATE36598T1/en
Publication of EP0179149A1 publication Critical patent/EP0179149A1/en
Application granted granted Critical
Publication of EP0179149B1 publication Critical patent/EP0179149B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/326—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with corrugations, incisions or reliefs in more than one direction of the element
    • 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
    • F28F25/087—Vertical or inclined sheets; Supports or spacers

Definitions

  • the invention relates to a cooling tower plate made of fiber cement or the like, which is structured by rows of elevations on one surface and opposing depressions on the other surface, the height of the elevations and depressions being less than the substantially uniform thickness of the plate is.
  • Cooling tower plates of this type are e.g. B. from DE-U-8302704 and are used extensively in cooling towers, for example of power plants, to be able to recool large quantities of cooling water through the ambient air.
  • the cooling tower plates are often suspended in packages within a cooling tower, so that their surfaces run in vertical planes.
  • the water to be cooled is sprinkled or sprayed onto the top of the cooling tower plates. It then runs in countercurrent along the plate surfaces against cooling air directed downwards. There it either meets additional cooling tower plates or is collected for reintroduction into the cooling process.
  • the surface structure of such plates is primarily important for the cooling effect.
  • the water should have a large surface available for wetting and the water should not flow laminarly over the surfaces so that an optimal cooling effect is achieved.
  • the production of cooling tower plates with such a structure is complex due to the shapes required for this.
  • the invention has for its object to propose a structured cooling tower plate that has good heat exchange properties and yet inexpensive, for. B. by rolling.
  • a cooling tower plate of the type mentioned is proposed. It is distinguished according to the invention in that the elevations are spaced, flattened or rounded points on their heads, which the corresponding depressions are opposite, that on each surface two corresponding rows of depressions are provided on both sides next to two immediately adjacent rows of dots, and that both the points and the depressions of each line pair are offset from one another in the line direction.
  • the plate is designed to be slightly undulating perpendicular to the row direction.
  • a three-dimensional heat sink is known, which is designed in the form of a hollow body with several levels.
  • the layers of the individual levels have elevations and depressions, the height of which is a multiple of the material thickness of the layers.
  • a cooling tower plate 1 has a basic thickness of about 5 mm and a surface 2, which is shown in FIG. 1 and a surface 3 opposite this for this purpose, indentations or depressions 5 running in rows are structured.
  • the elevations or points 4 have approximately the form of small hills, which protrude over from the Platteno- f Smile Friend 2 and have a flattened or rounded surface.
  • Each elevation or point 4 on one plate surface 2 is opposite a depression 5 in the area of this point 4 in the other plate surface 3.
  • rows 2 of points 4 and depressions 5 are provided in pairs on each surface 2, 3. 1 shows, from top to bottom, first two lines 6, 7 of wells 5, then two lines 8, 9 of wells 4, then again two lines 10, 11 of wells 5 and finally one line 12 of wells 4. Points 4 of each pair of dot rows 8, 9 are offset from one another in the row direction - and of course perpendicularly thereto. The same applies to the depressions 5 in the two adjacent rows 6, 7 and 10, 11 of depressions 5, respectively. The result is the image of a zigzag-shaped row of dots in the area of each pair of dot rows 8, 9 and a corresponding zigzag-shaped course of the indentations or depressions 5.
  • each elevation or point 4 is followed by an indentation or depression 5, which in turn is followed by a point 4.
  • the cross section shown in FIG. 2 through the cooling tower plate 1 runs exactly along the line 7 from the section of the surface 2 of the cooling tower plate 1 shown in FIG. 1.
  • the depressions 5 of the line 7 in FIG. 2 can be clearly seen .
  • Each depression 5 corresponds to an elevation or a point 4 on the surface 3.
  • the material of the cooling tower plate 1 is curved upward between the depressions 5 of the row 7.
  • the points 4 on the surface 3 can be recognized, which correspond to the depressions 5 of the row 6 on the surface 2.
  • the shape of the depressions 5 or points 4 can be clearly seen.
  • the structure of the plate according to the invention is versatile and can be used with advantage not only for cooling towers, but quite generally as a trickle plate.

Abstract

A plate (1) for cooling tower, made of fibro-cement or similar material having surfaces (2, 3) shaped with projections (4) arranged in lines and recesses (5) arranged opposite them. Water circulating over these plates has access to a large wetting surface and in addition does not flow in a laminar manner over the surfaces. The plate has good heat exchange properties and its manufacture is inexpensive, because from each of the two surfaces project flattened or rounded points arranged in lines or otherwise, which are located opposite similar lines of recesses and each plate surface has a great number of lines of points and recesses which are approximately parallel.

Description

Die Erfindung betrifft eine Kühlturm-Platte aus Faserzement o. dgl., die durch zeilenweise verlaufende Erhebungen auf der einen Oberfläche und diesen gegenüberliegende Vertiefungen auf der anderen Oberfläche strukturiert ist, wobei die Höhe der Erhebungen und Vertiefungen kleiner als die im wesentlichen gleichmäßige Stärke der Platte ist. Kühlturm-Platten dieser Art sind z. B. aus der DE-U-8302704 bekannt und werden in Kühltürmen beispielsweise von Kraftwerken umfangreich benutzt, um große Mengen von Kühlwasser durch die Umgebungsluft rückkühlen zu können. Die Kühlturm-Platten werden vielfach paketweise innerhalb eines Kühlturmes aufgehängt, so daß ihre Oberflächen in Vertikalebenen verlaufen. Das zu kühlende Wasser wird im Bereich der obenliegenden Kanten der Kühlturm-Platten auf diese aufgerieselt oder -gesprüht. Es läuft dann entlang der Platten-Oberflächen im Gegenstrom gegen von unten nach oben gerichtete Kühlluft nach unten. Dort trifft es entweder auf weitere Kühlturm-Platten oder wird zur erneuten Einleitung in den Kühlprozeß gesammelt.The invention relates to a cooling tower plate made of fiber cement or the like, which is structured by rows of elevations on one surface and opposing depressions on the other surface, the height of the elevations and depressions being less than the substantially uniform thickness of the plate is. Cooling tower plates of this type are e.g. B. from DE-U-8302704 and are used extensively in cooling towers, for example of power plants, to be able to recool large quantities of cooling water through the ambient air. The cooling tower plates are often suspended in packages within a cooling tower, so that their surfaces run in vertical planes. The water to be cooled is sprinkled or sprayed onto the top of the cooling tower plates. It then runs in countercurrent along the plate surfaces against cooling air directed downwards. There it either meets additional cooling tower plates or is collected for reintroduction into the cooling process.

Für die Kühlwirkung derartiger Platten ist primär deren Oberflächen-Strukturierung wichtig. Dem Wasser soll eine große Oberfläche zur Benetzung zur Verfügung stehen und das Wasser soll nicht laminar über die Oberflächen abströmen, damit ein optimaler Kühleffekt erreicht wird. Eine Fertigung von Kühlturm-Platten mit einer solchen Struktur ist jedoch aufgrund der dafür notwendigen Formen aufwendig.The surface structure of such plates is primarily important for the cooling effect. The water should have a large surface available for wetting and the water should not flow laminarly over the surfaces so that an optimal cooling effect is achieved. However, the production of cooling tower plates with such a structure is complex due to the shapes required for this.

Der Erfindung liegt die Aufgabe zugrunde, eine strukturierte Kühlturm-Platte vorzuschlagen, die gute Wärmetauscheigenschaften aufweist und dennoch preiswert, z. B. durch Walzen, herzustellen ist.The invention has for its object to propose a structured cooling tower plate that has good heat exchange properties and yet inexpensive, for. B. by rolling.

Zur Lösung dieser Aufgabe wird eine Kühlturm-Platte der eingangs genannten Art vorgeschlagen. Sie zeichnet sich erfindungsgemäß dadurch aus, daß die Erhebungen beabstandete, an ihrem Kopf abgeflachte oder abgerundete Punkte sind, denen die entsprechenden Vertiefungen gegenüberliegen, daß auf jeder Oberfläche beidseitig neben jeweils zwei unmittelbar benachbarten Zeilen von Punkten zwei entsprechende Zeilen von Vertiefungen vorgesehen sind und daß sowohl die Punkte als auch die Vertiefungen jedes Zeilenpaares in Zeilenrichtung gegeneinander versetzt sind.To solve this problem, a cooling tower plate of the type mentioned is proposed. It is distinguished according to the invention in that the elevations are spaced, flattened or rounded points on their heads, which the corresponding depressions are opposite, that on each surface two corresponding rows of depressions are provided on both sides next to two immediately adjacent rows of dots, and that both the points and the depressions of each line pair are offset from one another in the line direction.

Vorteilhafterweise ist dabei die Platte senkrecht zur Zeilenrichtung leicht wellenförmig verlaufend ausgebildet.Advantageously, the plate is designed to be slightly undulating perpendicular to the row direction.

Aus der US-PS 34 75 012 ist ein dreidimensionaler Kühlkörper bekannt, der in der Form eines Hohlkörpers mit mehreren Ebenen ausgebildet ist. Die Schichten der einzelnen Ebenen weisen Erhebungen und Vertiefungen auf, deren Höhe ein Vielfaches der Materialstärke der Schichten beträgt.From US-PS 34 75 012 a three-dimensional heat sink is known, which is designed in the form of a hollow body with several levels. The layers of the individual levels have elevations and depressions, the height of which is a multiple of the material thickness of the layers.

Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand der Figuren näher erläutert. Es zeigen :

  • Fig. 1 eine schematische Draufsicht auf eine Kühlturm-Platte ;
  • Fig. 2 einen Schnitt längs der Linie 11-11 in Fig. 1.
An embodiment of the invention is explained below with reference to the figures. Show it :
  • Figure 1 is a schematic plan view of a cooling tower plate.
  • FIG. 2 shows a section along the line 11-11 in FIG. 1.

Eine Kühlturm-Platte 1 hat eine Grunddicke von etwa 5 mm und eine Oberfläche 2, die die Fig. 1 zeigt sowie eine dieser gegenüberliegende Oberfläche 3. Die Fig. 1 zeigt, daß die Oberfläche 2 durch zeilenweise verlaufende Erhebungen bzw. Punkte 4 sowie paralell hierzu zeilenweise verlaufende Eindrückungen bzw. Vertiefungen 5 strukturiert ist. Die Erhebungen bzw. Punkte 4 haben etwa die Form kleiner Hügel, die aus der Platteno- berfläche 2 herausragen und eine abgeflachte bzw. abgerundete Oberfläche aufweisen. Jeder Erhebung bzw. jedem Punkt 4 auf der einen Plattenoberfläche 2 liegt eine in den Bereich dieses Punktes 4 hineinragende Vertiefung 5 in der anderen Plattenoberfläche 3 gegenüber.A cooling tower plate 1 has a basic thickness of about 5 mm and a surface 2, which is shown in FIG. 1 and a surface 3 opposite this for this purpose, indentations or depressions 5 running in rows are structured. The elevations or points 4 have approximately the form of small hills, which protrude over from the Platteno- f Smile Friend 2 and have a flattened or rounded surface. Each elevation or point 4 on one plate surface 2 is opposite a depression 5 in the area of this point 4 in the other plate surface 3.

Im Ausführungsbeispiel sind auf jeder Oberfläche 2, 3 paarweise Zeilen von Punkten 4 und Vertiefungen 5 vorgesehen. Fig. 1 zeigt von oben nach unten zunächst zwei Zeilen 6, 7 von Vertiefungen 5, dann zwei Zeilen 8, 9 von Punkten 4, dann wiederum zwei Zeilen 10, 11 von Vertiefungen 5 und schließlich eine Zeile 12 von Punkten 4. Die Punkte 4 eines jeden Paares Punktzeilen 8, 9 sind in Zeilenrichtung - und natürlich senkrecht hierzu - gegeneinander versetzt. Dasselbe trifft für die Vertiefungen 5 in den jeweils zwei benachbarten Zeilen 6, 7 bzw. 10, 11 von Vertiefungen 5 zu. Es entsteht dadurch das Bild einer zickzackförmig verlaufenden Punktreihe im Bereich jedes Punktzeilenpaares 8, 9 und eines entsprechenden zickzackförmigen Verlaufes der Eindrückungen bzw. Vertiefungen 5.In the exemplary embodiment, rows 2 of points 4 and depressions 5 are provided in pairs on each surface 2, 3. 1 shows, from top to bottom, first two lines 6, 7 of wells 5, then two lines 8, 9 of wells 4, then again two lines 10, 11 of wells 5 and finally one line 12 of wells 4. Points 4 of each pair of dot rows 8, 9 are offset from one another in the row direction - and of course perpendicularly thereto. The same applies to the depressions 5 in the two adjacent rows 6, 7 and 10, 11 of depressions 5, respectively. The result is the image of a zigzag-shaped row of dots in the area of each pair of dot rows 8, 9 and a corresponding zigzag-shaped course of the indentations or depressions 5.

Senkrecht zur Zeilenrichtung verlaufend folgt auf jede Erhebung bzw. jeden Punkt 4 eine Eindrückung bzw. Vertiefung 5, an die sich wiederum ein Punkt 4 anschließt.Running perpendicular to the line direction, each elevation or point 4 is followed by an indentation or depression 5, which in turn is followed by a point 4.

Der in Fig. 2 dargestellte Querschnitt durch die Kühlturm-Platte 1 verläuft genau längs der Zeile 7 aus dem in Fig. 1 dargestellten Ausschnitt der Oberfläche 2 der Kühlturm-Platte 1. Deutlich sind die Vertiefungen 5 der Zeile 7 in Fig. 2 zu erkennen. Jeder Vertiefung 5 entspricht auf der Oberfläche 3 eine Erhebung bzw. ein Punkt 4. Zwischen den Vertiefungen 5 der Zeile 7 ist das Material der Kühlturm-Platte 1 nach oben gewölbt. Dadurch sind die Punkte 4 auf der Oberfläche 3 zu erkennen, die den Vertiefungen 5 der Zeile 6 auf der Oberfläche 2 entsprechen. Die Form der Vertiefungen 5 bzw. Punkte 4 ist dabei gut zu erkennen.The cross section shown in FIG. 2 through the cooling tower plate 1 runs exactly along the line 7 from the section of the surface 2 of the cooling tower plate 1 shown in FIG. 1. The depressions 5 of the line 7 in FIG. 2 can be clearly seen . Each depression 5 corresponds to an elevation or a point 4 on the surface 3. The material of the cooling tower plate 1 is curved upward between the depressions 5 of the row 7. As a result, the points 4 on the surface 3 can be recognized, which correspond to the depressions 5 of the row 6 on the surface 2. The shape of the depressions 5 or points 4 can be clearly seen.

Die erfindungsgemäße Platte ist in ihrer Strukturierung nicht nur für Kühltürme, sondern ganz allgemein als Rieselplatte vielfältig und mit Vorteil einsetzbar.The structure of the plate according to the invention is versatile and can be used with advantage not only for cooling towers, but quite generally as a trickle plate.

Claims (2)

1. Cooling tower plate of fibro-cement or the like. The structure of which consists of projections extending parallel to one another in lines on one surface and recesses opposite these projections on the other surface, the height of the projections and recesses being smaller than the substantially uniform thickness of the plate, characterised in that the projections are spaced points (4) which are sloped or rounded at their head and opposite which are the corresponding recesses (5), that provided on each surface (2, 3) and on both sides alongside two adjacent lines (8, 9) of points (4) are two corresponding lines (6, 7, 10, 11) of recesses (5) and that both the points (4) and the recesses (5) of each pair of lines are offset relatively to one another in the line direction.
2. Cooling tower plate according to claim 1, characterised in that it has a slightly corrugated form perpendicularly of the line direction.
EP85902503A 1984-05-04 1985-05-03 Plate for cooling tower, made of fibro-cement or similar material Expired EP0179149B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85902503T ATE36598T1 (en) 1984-05-04 1985-05-03 COOLING TOWER PLATE MADE OF FIBER CEMENT OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8413605U 1984-05-04
DE8413605 1984-05-04

Publications (2)

Publication Number Publication Date
EP0179149A1 EP0179149A1 (en) 1986-04-30
EP0179149B1 true EP0179149B1 (en) 1988-08-17

Family

ID=6766527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85902503A Expired EP0179149B1 (en) 1984-05-04 1985-05-03 Plate for cooling tower, made of fibro-cement or similar material

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US (1) US4673538A (en)
EP (1) EP0179149B1 (en)
DE (1) DE3564486D1 (en)
WO (1) WO1985005171A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740334A (en) * 1987-05-29 1988-04-26 Norton Company Tower packing element with embossed surfaces
WO1991005926A1 (en) * 1989-10-11 1991-05-02 Michael Ian Johnson High strength structural members
DE4001912A1 (en) * 1990-01-24 1991-07-25 Flachglas Consult Gmbh Cooling tower - has glass plates as trickle assembly with surface structuring to give serpentine path across air flow
DE502006000360D1 (en) * 2006-03-15 2008-04-03 Basf Ag mesh packing
EP2810707A1 (en) * 2013-06-07 2014-12-10 Sulzer Chemtech AG Package layer for a structured package
USD945648S1 (en) * 2019-10-01 2022-03-08 Max Life, LLC Wall panel with drainage features

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR808844A (en) * 1937-02-16
GB190928970A (en) * 1909-12-11 1910-12-01 John Henry Sherwin Improvements in and relating to Apparatus for Heating, Cooling, and Condensing.
GB441462A (en) * 1933-04-13 1936-01-13 Hermann Carl Amme Improvements in a heat exchange surface
GB990851A (en) * 1964-01-24 1965-05-05 Balcke Ag Maschbau Trickle plate for cooling towers
US3211219A (en) * 1964-03-30 1965-10-12 Curt F Rosenblad Flexible plate heat exchangers with variable spacing
GB1126066A (en) * 1965-07-28 1968-09-05 Janusz Gutkowski Improvements in heat exchangers
GB1203416A (en) * 1966-11-08 1970-08-26 Ici Ltd Improvements in or relating to film-flow packings
US3917764A (en) * 1973-01-26 1975-11-04 Peter M Phelps Sloped film fill assembly cooling tower
SE7401949L (en) * 1974-02-14 1975-08-15 Svenska Flaektfabriken Ab
US3912004A (en) * 1974-05-10 1975-10-14 William J Darm Heat exchanger apparatus with spacer projections between plates
US4374542A (en) * 1977-10-17 1983-02-22 Bradley Joel C Undulating prismoid modules
DE3222892A1 (en) * 1982-06-18 1983-12-22 Julius Montz Gmbh, 4010 Hilden Packing for an exchange column
DE3236889A1 (en) * 1982-10-18 1984-04-05 Energiagazdálkodási Intézet, 1027 Budapest Heat exchanger composed of plane sheet-metal elements
DE3239510A1 (en) * 1982-10-26 1984-04-26 Julius Montz Gmbh, 4010 Hilden Packing for an exchange column
DE8302704U1 (en) * 1983-02-02 1983-05-19 Toschi Produktions-Gesellschaft mbH, 2818 Rethem Fiber cement cooling tower plate

Also Published As

Publication number Publication date
EP0179149A1 (en) 1986-04-30
WO1985005171A1 (en) 1985-11-21
DE3564486D1 (en) 1988-09-22
US4673538A (en) 1987-06-16

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