DE1990947U - Trickle insert for cooling tower, etc. - Google Patents

Description

i.A. 2 9 6-Λ.6 3 * 2 2.5.6B

. H. NEGENDANK · bipl-ing. H. HAUCK bipl-phys. W. SCHMITZ

HAMBURG-MUNICH

: HAMBURG 36 NETTER WALL 41

Part. 367428 TJND 364115

TElEGR. NEGATIVE HAMBURG

MUNICH 15 MOZARTSTR. 23 TEL. 5380586

TElEGR. NEGEDAPATENT MUNICH

M i? L 184- / 1Ts GrblH

Carl Georg Munters

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Trickle insert for cooling towers waä.

The control "is aimed at a body of contact or an exchanger packing to transfer two fluids, mainly air and water to act on each other.

In particular, the hiring relates to one Contact body or an exchanger packing, which enables a mutual interaction between water and air, being this body or this pack with. .folded or wave-shaped layers or plates is provided, which exert a pressure on each other, with channels or Passages that lead from one end to the other, between the layers or plates are formed, .and through which the two fluids are passed simultaneously should.

A particularly important area of application is in Cooling towers are given in which the water is thereby cooled that a small rope of it will evaporate in the air

can. In order to achieve a high efficiency of the exchange it is important - that the liquid is distributed over the largest possible part of the plates or the surfaces of the contact body. For this purpose, the layers or · the. Flatten, einemvbeiietztuagsfähigen and absorbing aterial ^iU ,: of: &, _"BV Zellullosefasern or asbestos prepared Bs is also, has already been proposed, the layers oder..Platten-; Aeus produce plastic, the favorable to many time properties: comprising This means that this material is not attacked by decay or similar processes of decomposition: and some / plastics, e.g. polyvinyl chloride, are difficult to ignite.

However, they take; Layers or sheets of plastic have no water or are only poorly wettable, and for this reason the water refers to the formation of run or streams together, which: the relationship between the size of the layer or the sheet surface, which was wetted by the water * and greatly reduced the total surface of the layer. However, poor adhesion of the aqueous film obtained with the plastic not only has the disadvantage that parts of the surfaces remain dry, / but the flow of the. lässers ::, can easily be disturbed, and it can happen that the water deviates considerably from the path determined for it under the action of an external force, so that: an increased flow is achieved in certain zones - while in other zones the river is considerably less powerful. This affects ^ the performance of the cooling tower in the negative direction-not only as a result of the fact- ■ "- ■■■ - '^;"■■■'" ■ ^: ' - ■■ '"■""- 3 -

Thing that some surfaces / remain ineffective, but it must also be expected with a deterioration in performance, since the relationship; does not reach the value between the amount of air flowing into each section of the media, .wurde reckoned with, "Thus, if the amount of water in a rope of the tower" -the · --mittlere amount of water significantly \ • obers ciareit et, it is on It is clear that the amount of air flowing through the same section of the tower at the same time is too small to achieve the desired cooling effect. It is therefore particularly important for effective use of the surfaces and the media flowing over the surfaces, that first of all the surfaces are covered to the greatest possible extent by the flowing film of water and that the Du33äiffluss in / this PiIm "is as even as possible. . '■ - ""; \, / -.

The disadvantages of plastic are particularly evident in towers that work according to the cross-flow principle, in which the air and water flow through the contact body at right angles relative to one another. In this way the air acts on the water with a force which is generally perpendicular to the path of the water, and the result is a considerable deviation from this path. . '■ ■■. "-, -': ^:: ; " --- '..- "

During the past few years is; t. been made in big em mass of touching bodies or Austausfeherpa'ckungen use, which are provided with very narrow passageways _s example with

Narrow spaces : zMlseiie ^ äen SGlilohteiL; oäer Tlatteii or tubes with a small.BurGluaesserj: since these types of construction require large surface areas as well as "high Construction types 0lDBrflä-Öli'en ^> S4t "": gui; en --- wä # sersTDSor "beer iideii or film-forming properties; in order to avoid that the water bridges the channels λ and thereby them; shut off so that no air can pass over. In this respect, plastic does not have any favorable properties, but rather does. Usually larger canals or major routes are required.

A Hauptmerkmalder furnace is to overcome d, he mentions en Bht e il _y e by e ine type / ter Berührungskörp he or Austauscherpackungen: is provided, - the. consists mainly of plastic and, in spite of wide passageways, has high transmission coefficients. fire ^ form the old. or wave formations in the layers or layers which consist of; Plastics are made, in adjacent layers, at an angle with one another. ^On: this way the _water: as a result of fortgeseizben calibration Tung change ^to: in eineal · particularly, contributes .günstigen way crossing Palten along ub ^ he ^ dfe layer or Plattenoberfläehen distributed A ■ fektor / the ^ to "obtaining this favorable effect ^; is: denoted ^{by the} fact that. an incipient accumulation of water at one point on the layer or plate surface quickly ■; dissolves% | _: when the flow of water from one. old; to the other on the space in between between the two. layers or plates; along the next-

Direction change occurs, luch: / dieluft; is due to the incessant - ^: listening. change in the state. the "width of the gaps, a constant effect, exposed, what causes the .. air to flow:; ._ .. under favorable conditions to a high transfer coefficient between the two media ever. Surface..;. Unit of layers or plates to be created.,. "-. ■■" .- ,.;

Particularly "advantageous results have been achieved with certain. ■... Angles between the main direction of the air flow and the intersecting gaps. If the angle between .. the. Direction of the air and the; IaIten is small, so ^that: Palten almost parallel, zur.Durchflussriehtung the air. extend then will _; the door division of the door is insignificant and therefore the coefficient of transfer of heat or moisture : - "low.. As the angle increases, the number of deflections or turns of the door per unit of length also increases , and thereby also increased transmission coefficient are obtained: ,, which make the dimension of the Yerminderung -Berührungskörpers in the Luftdurchflussrichtung.möglich loading is exceeded: certain angle between -the main flow direction of the ^air, and, however, the Palten be the distractions or.. turns '-._ ■' and! turbulence so severe that the film of flowing water or- demolished gelösfcwiied and the water the JTeigung has to follow the air as well as .bilden in.den Eanälen Terstopfungen .. This leads to a considerable increase in the pressure drop for; -. the air during its passage. through the. ^: Cooling effect related to the sacrificed. Pressure drop .reached

■ will. Bs is; found-Morden that favorable results are achieved when the angle between the ,, folding _"when:. ■ viewed in the direction Desj) urchflusses the air between 5o ° and 70" are held up to 85. It has thus become possible to achieve the same cooling effect in one: cooling tower with only half of the.: V departments that fi? = Contact body _requires: is DIE with Iiagen or flattening; absorbent material are made of water, .to .um.die prallelen tubular channels. "form ..;. - ■ '' - .. -.-'-.-_: .- ' : · - /"""

Further properties and advantages of the! Fire come from: the description in connection with the Zeiehnui ^ n. :.

Shown ^are: Γ _■: _ _ ".. / ■";

Pig. 1 a, vertical-longitudinal section, through: a cooling tower ,. : which is equipped with; contact elements. or heat exchanger packs,; . . - .. - .. _: .:. . . . _::.

Pig. 2. a perspective view of a rope ... a contact body or an exchanger pack,;. ■ .-. ■ · ■ .; ": - _: . ^: ': -.. - ■■■■■ _

lig. 3 shows a perspective illustration of a part "..

des with vertical slits or ■. . Waves provided contact body inter-. ;., - ■ - - ■ '■. - larger size,; ■ -. ".; _: - '" ■ - ■. . . ., - ^,:

Pig. 4 shows a vertical section through a part of the cooling tower at; Terwendüng one easily;

■ '■■■ ". Ν ^; - ■ -.' ■. ■ -;" ■ "■ '■' - 7 -

■■ - "■".? -

modified '

ig »" 5 ^: ■■■ "■■ a side view of a layer or plate which, according to an optional embodiment, is with _: Palten Tex see; .. ".- ■." -V /

Pig. 6 is a perspective side view of a ■ - still another AMandlting of a layer or

Plate with / modified column formations and

Fig. 7 ... a perspective: representation of a calming

.-. body after an even further deviated ■ - ■ " ■ '"" .delten embodiment:. -. - "T

The embodiment shown in Figs. 1 _: to 3 relates to a cooling tower with: a housing ^:: lo animal-angular ^: shape with two opposite openings in which contact bodies or exchanger packings 12 and 14 are arranged. The housing Io calls for passes 16 and forms in its base plate a plüsslgkeits collecting basin 17, the water level of which is regulated by a float IS controlling the supply of the price water, and which has a drain 19 for the cooled water. Air is supplied to the contact body 12, 14 through the lateral openings in the housing and through a central section of the tower. 2a. sucked in, the sound is driven by a motor 22, as well as in _: e ^: inem, tubular.i.uslass 24 is, - the water is τοη above ah die.Beührungskörper 12, 14 ,. .. carries out, namely through; a line 2.6 ,. at the bottom acrossTir--

current troughs 27 with Älauflockern on the rectangular upper B _e of the Torderseite _reicli: Beruhxungskörpers along provided are. ^: ■ "-. ■■ ;; ■ - ■ - - ..- -:." .-- ■ -

The contact bodies 12 and 14- are composed of thin layers or plates 28, 29, which preferably have! "Al -..---- ■. ■ / ten- or. Wave formations that overlap in adjacent layers Fissures are essentially formed in such a way - that: they run in a sinusoidal curve - or they are smoothly rounded between "the ridges" and "deepenings". det. The layers press against each other and in particular during transport and Assembly by one, from Drähien 25, strip, metal wire, or metal wire last bands or plastic bands or the like ^formed. Bandage held together :. If necessary, the layers can be at their point of contact eh'ν: ⁷ . by a binding agent such as glue or by a locally applied solvent for the plastic. The layers are preferably made of: a hard / flammable plastic, for example polyvinyl chloride :. The contact body has-.gap spaces and. Passageways,. which ¹ extend from your end, .to the other, in both the horizontal and the vertical direction, and which extend continuously in width between .0 at the points of contact between the layers up to twice the height of "the waves" \ ^; Formations vary .; The height of the wave formations of the individual;. plates can increase to a., value between 5 and Io up to 15 mm ._ and even beyond. ..- ;; .... ■ ^.:

The contact body 1.2 ^: oder.der lustauscherkköry that is shown on the left in I ¹ Ig -.- 1 and 2, has-, in every second, - .; ^:

Layer of wave formations o ^! Angle of inclination on, .- =. So smd-the wave formations ::. 3o,? The "at one"; Viewing in the direction of the arrow .31 of the horizontal air flow; directed above, _{s are} at a larger angle ^:. towards the horizontal plane ". inclined than the wave formations. 32, which run downwards>" The result is that in the contact body there are means which exert a restraining effect on the water flowing from top to bottom, so that this Water τοη the air flow in the lowest possible. Extent is taken ..- The wave formations or columns 33 :, 34 of the right in Pig. 1 shown touch body 14 - have doeh - the same in all positions; ieigur_gswinke.l. - Of course, the two touch spirals; have the same trees ... _:

The one between the ages - 3o; _? ; 32 or 33, 34 educated.

The angle should preferably be acute and nothing much larger. .

than 60 ° to 80 ° .-- v ^ lß ^ iuTliei'o-te G-renze'ssien 35 ° to 40 ° called. The "ffeigungswinkel- the Palten 32 and 3ο ene to the horizontal Bb can zwis chen Ό ^and;:.?. Etm; s ehwanken 50 ° The Palt s 32 may also have a post-upward Heiguhg, ie a Feigung in the same screening as the Palten 3o, however, with a smaller 'ißnke ^ the Ieigungswinkel the Palten 33, 34 in the direction of the horizontal plane is the same size, ^nämlieh.

Apart from these larger ^{gaps there are:} "The layers or plates preferably provided with fine _: Tertlef'uiigen;which; in the form shown in Pig. 1 to; 3 - the shape of gaps

- Io -

or shrinkages 56, and one would run from 0.5 up to 1.0 to 3 mm can be achieved with a cross-sectional shape similar to an isosceles or equilateral triangle. When in the Pig. 1 to 3 illustrated embodiment the gaps are essentially perpendicular. The columns 36 prevent the water from being carried sideways by the airflow and also facilitate the distribution of the Water over the Sälcht or plate surface. Around To produce an effect, the gaps 36 have such a cross-section, that they make the water cling to them and cause it to follow the length of these crevices. The gaps are essentially parallel to one another and cross the larger gaps.

Instead of following the illustration in Pig. 3 to run in the transverse direction, the gaps 38 can be arranged at an angle be like it from Pig. 4 can be seen, so that it slopes downwards and outwards onto the inlet opening for the in the To extend cooling tower entering air. Thereby an additional security is gained in the sense that the water gleiehmäs3Lg is distributed over the surface "^. er" ~ layers. . ' The gaps 38 give the water a drive to move in the horizontal direction, that of the direction of the arrow 31 of the air flow is opposite. The columns tend to to lead the water to that side edge of the layer, on which the air enters between this layer. Through this The air is helped to concentrate the flow of water in a direction towards the outlet edge for the air. These The tendency to push sideways is shown to the same extent

- 11 -

U-

how the gaps are flattened or given a soft contour. B _e i deep or sharp -Yertiefungen or Palten. creates a. Surface tension, especially when the dimensions of the depressions; Be reduced, whereby the "... water adheres more effectively in the pits or crevices ^.:

In: the embodiment shown in Pig »5, the ..." .- "- .. contact body is composed of layers 40, which are shown in a side view and have fine gaps 42. These differ from the previous ... embodiments by the feature that they are so-called /. Sehleudder waves make what. means that / the columns "at. ■■""" .- a consideration Im .. right :; Angle in the direction of the plane of layer 4o. have a sinusoidal or similar shape .-- In Pig. 5 there are no large gaps to cross, the gaps 42 at an acute angle to the head direction of these gaps, but such gaps can also be in this form. to be used. I3ea?, A special part of this centrifugal wave form consists in the fact that the individual streams of water - in the fissures as a result of the incessantly changed. Flow direction need a longer time to move from the upper to the lower edge over the layer or plate. flow. and thereby / Γ ^: to increase the contact time between the te of the air. ". '-;.;-;"■'■ / ■;:,.'. . . ,. ._ "..;

The embodiment shown in Pig. 6 has "■■ -.-" ■ "." Layers 45, 45, which ^: in the same way as the embodiments of the pig ..- 2 and 3 large ^: clefts or ¥ omnidirectional formations 44 _? :. ν : '■■:. ■: ■ ■ ...;. \ / ■■■ ... ■; ^: ■ ■ ;, -; - Vi \

46, which are at an angle to each other in the adjacent layers form. The gaps are traversed by folds 48,5o, which in this embodiment are not contiguous but are interrupted by smooth zones of the layers at the crests of the crevices. Although in this embodiment the palms in the vertical extent of the strata are not contiguous, but are interrupted by the smooth zones mentioned, is essentially the same Effect achieved, namely an inevitable leadership of the Water in a lateral direction counter to the effect of the horizontal Air flow. From the manufacturing point of view, the embodiment under consideration will in some cases be preferred. The folds 44, 46 have a relatively small radius of curvature on the actual ridge, while the lateral sections between the ridge and the depressions can be straight or approximately straight.

Fig. 7 shows an embodiment of the furnace, in which the layers 52, 54, which are made of plastic, are provided with large folds or corrugations 56 and 5β whose main directions can run parallel to one another in two adjacent layers. The folds 56, 58 are not straight as in the previous execution ™ shape, but follow a zigzag line, a sine curve or a so-called centrifugal wave with reference to the plane of the Layers. When the air in the indicated by the arrow 31 Wise flows, then it meets in its passage between them Layers 52, 54 ceaselessly look for changes in cross-section. At the same time, the water is fed to the same extent that it was before

■ ■.-.-; ' '- ■ - 13 -

a sideways twist & Lgu ^ gV.dur ^ is.

However, the '' ßoh ± Qh ± en \ -zu8ß ^ zliola \ can be provided with means similar to '''^ aX ± ßp .-: - QAeT for' Piihrang or for the distribution of the water. ; -. ... '■ -. ■;, .- :. '■ "- ■"

The fine depressions - "are the micro-components ¹¹ , thus, as from the .A · αs: lead ■ αngen" ΪLerτorgeΐLt _? on the folds or ¥ ¥ ¥ ¥ ¥ ¥ l3formationungen: is. arranged, which can be called "MakrolDeilteile'V TDezeiG.linet. When the interaction between these two components are achieved extremely favorable conditions for the" intended exchange between. the / two media. / The thermoplastic layers are heated and in / forms with a corresponding; Shape to produce the desired structure of the layers or layers M by means of a vacuum. I in this lall correspond; dBntt; i the m ^ krobestestandi- ^ e'den meshes of the wire netting. and can thus-kr-euzweise Terlau- ^-: Fende löcsprünge in the longitudinal direction: having forming at right angles interrupting .Reihen. - _; ; .- "--.-.

The contact body can .from -Waagerecht superposed disc are assembled '- which are produced by plastic layers of which in ^the:. Ivwise described gefö.rmt.7-TAED; ^\: ziisäümme ^ £ e; S.etz ^: t were, and -. these layers thus form \; in the .assembled; Condition a touch body tone of the desired perpendicular dimension.

While Yerschiedene liasführangsformen more .or less special the leuerung ge ^ eigii / uM "have been beschrietien, -sei pointed out ,; .dassi this ^ only ζπ3-Irläuterung; _is: _ -.". - ■ .'_. -.-- -: ■ - ■; -. ^: ... -:.

Claims (5)

Protection claims 1. Blesel body insert for / a device for Wärmeaus t from between liquid and gaseous media, e.g. water and air, which result from wrinkle-like deformations, to one another adjacent plastic layers is composed, v / o "with the fold-like deformations successive Layers, seen in the direction of air flow, each enclose an angle with each other and form continuous channels, characterized in that the angle, that the gaps "form" with each other on average, about 4o "to amounts to. V * 2. Biesel body insert according to claim 1, characterized in that that the plastic layers made of polyvinyl chloride, in particular non-reinforced Polsrvinylchloride. 3. Meselkkörereinsa / bzlnach claim 1 and / or 2, in which the Water from above through the distribution body and the air from the side with a horizontal 33ewegungsko.mpone.nte, characterized in that the angle of inclination is the fold-like Deformations (33, 54) for the flow direction of the ~ 2 - Water bigger and preferably much bigger than you Angle of inclination to the flow direction of the air. . 4. trickle body insert according to claim 3, characterized in that to 'counteract a lateral displacement that takes place in vertical sighting viasserdurchflußes the fold-like deformations (33,34) of a layer (28, 29) form an' angle to the horizontal flow direction of the air ", the is greater than the angle of the next layer. 5. trickle body use according to ein.ni; dei \ claims 1 - ■ 4> characterized in that the ■ .Mittelakstand between the layers (28, 29) amounts to about 10 to 15 mm.