DE3148571A1 - DEVICE ON RIESELKERPERN FOR COOLING TOWER AND THE LIKE - Google Patents

Description

il ft *

t> BK * *

. _r,. 3Η8571

DESCRIPTION

The present invention relates to a contact or trickle body for liquid and gas, for example for use in cooling towers and the like is composed of thin layers or foils located from one another, the channels for the passage of an am Upper part of the giant! Body initiated and in an or several collecting channels located below the thin layers form collected liquid.

In, for example, from trickling bodies of the type described at the outset The type of built-up cooling towers is placed in the tower by means of a distribution device located above the trickle body Introduced liquid, such as water, after passing through the trickle body in a collecting basin below the Heat sink collected. After the water has come to the intended use, for example as a cooling medium !, it is returned via a circulation system to a point above the trickle body, from where it is passed through the distribution device is returned to the tower. The basin in which the liquid collects must be there, at least at cooling towers working according to the countercurrent principle, in one relatively large distance from the lower surface the trickle body should be nage arranged to allow the introduction of the gas, such as the air, so that it goes up through the Giant! Bodies flow and emerge on their upper surface can. The principle of the application of a collecting basin into which the water is released from a considerable distance from falls at the top, has the disadvantageous consequences that once the falling water is a potentially disturbing environment Causing noise and that it is at a considerably lower level than the lower surface the trickle body has to be pumped up, which requires large amounts of energy. Therefore, attempts have recently been made been the water at a point at or just below the bottom surface of the giant! body, i.e. a lot higher than before, which both reduces the noise level during operation

: ϊζ "': - Ί ' S-r ': Ί 3U8571

the pumping height is also significantly reduced.

A well-known approach with this objective is to create gutters or troughs on each of the film layers of the To connect trickle body that is on the surface of the Layers of water flowing down should collect and drain away. It has also been proposed to form grooves in the material itself from which the layers are made or squeeze and them or the whole trickle body to give such a slope to one or both of its ends that the water flows into larger collecting tanks or canals able to drain. However, forming such grooves on each layer of film is not only intricate and expensive, but also expensive Above all, the channels affect the free space between adjacent layers and narrow the available passage for the upward flow of the air, whereby the pressure drop over the trickle body in undesirable Extent is increasing.

The main purpose of the present invention is accordingly to provide a device for trickling bodies of the type described above Design that collects the liquid passing through the trickle bodies directly below its lower Surface made possible without a noticeable impairment of the flow conditions for the gas and the liquid to bring about when they pass through trickle bodies.

Another purpose of the invention is to provide a device of this type, which is easy and cheap to manufacture and install. Another purpose of the invention is to provide a device that, in addition to simplifying and improving the installation and suspension of the trickle body in certain embodiments, a stiffening of the trickle body is also useful.

This is essentially in accordance with the guiding principle of the invention achieved in that the trickle body of the type described above is set up in such a way that its lower part includes surfaces for guiding away the liquid introduced at its upper part, which is to the horizontal inclined and at least one collecting channel or one collecting channel are connected to which they are connected by the

3H8571

Discharge the trickling body liquid passing through.

Advantageously, the surfaces for guiding the liquid away are formed on the lower surface of the giant body, which is cut obliquely to a tip emptying into the collecting channel.

According to a particularly advantageous embodiment According to the invention, the main part of the thin layers of the giant body is corrugated and the corrugations cross each other in every other layer with those of the intermediate layer,

1.0 with all corrugations in their longitudinal direction at an oblique angle run to the vertical.

Further characteristic properties of the subject matter of the invention are evident from the accompanying patent claims, and further advantages that can be achieved thereby from the following Detailed description of preferred exemplary embodiments illustrated in the following drawings. from In these drawings, FIG. 1 shows a diagram with the solid lines according to the invention Trickle bodies are shown with the associated collecting device and are adjoining trickle bodies of one with dashed lines Cooling tower indicated. Fig. 2 shows another embodiment of a trickle body designed according to the invention in a perspective view similar to FIG. 1. In FIG. 3, the solid lines show a side view of a trickle body similar to that of FIG. 1, while the dashed lines indicate an adjacent trickle body imply. Fig. 4 shows diagrammatically on a larger scale To scale the lower surface of the trickle body of FIG. 1 and 3. FIG. 5 shows a side view of one with a collecting device according to another embodiment of FIG Invention equipped trickle body. FIG. 6 shows a diagrammatic end view of a trickle body similar to that of FIG. 1 with a modified version of the collecting device. FIG. 7 shows a modification of this device in an end view and FIG. 7a shows this device on a larger scale on the lower part of the trickle body shown in a part of FIG. 7. FIG. 8 shows a diagram of the 7 used in a box-like frame. Fig. 9 shows a further modified embodiment

guide form of the giant! body according to the invention. The fig. 10 shows a section along the line X-X in FIG. Finally, FIG. 11 shows a further embodiment a trickle body shaped according to the basic idea of the invention.

In the embodiment shown diagrammatically in FIG. 1 a contact or giant! body 10 is made up of thin layers or foils 12, which are illustrated here Execution are corrugated or folded. All layers are plumb, and the folds or corrugations in adjacent corrugated or folded layers cross each other at an angle to the perpendicular. This from a purpose-built Material such as plastic, metal or the like. manufactured layers support each other and are on theirs Points of contact with one another by means of a suitable connection method, such as gluing, welding or the like. connected with each other. A liquid, like water, flows from above and a gas, such as air, flows from below in countercurrent through the giant body 10 along the continuous flow formed by the layers Channels or passages.

In the device illustrated in FIG. 1 two such trickling bodies 10 are attached on both sides of a central, flat layer or plate 14. This layer 14, which has the same length as the giant body 10, that is, extends from the top surface of the trickle body 10 to a location slightly below its lower surface. Layer 14 is at its lower edge a channel or a channel 16 connected with a U-shaped cross-sectional profile, which is expediently made of the same material is manufactured like the layer 14 and with this during manufacture in one piece or by a suitable connection method is united. Although the layer 14 is made of the same material as the layers labeled 12 can be, such as polyvinyl chloride plastic, it is more advantageous to use a material with greater heat resistance, such as armored Plastic or a hardenable plastic, such as the thermoset "Noryl". The layer 14 can also be made of metal, for example Aluminum, steel or the like. be what also for that

^: "., ^: Ο" j ..: f ·: "* ·" * ". 3U8571

Layers 12 may be the case. As can be seen from the side view shown in FIG. 3, the channel 16 is mounted on supports, as will be described in detail below, whereby the channel over the layer 14 the Contact body 10 is able to support, which in turn in a suitable manner, for example by gluing or the like., With the layer 14 are connected.

To the flowing through the trickle body 10 To direct liquid into the collecting channel 16, the lower surface of the trickle body 10 is obliquely downwards towards the channel cut off in such a way that the two trickle bodies lying on both sides of the layer 14 form a V with their bottoms. After this the liquid, like the water, has flowed through the trickle body 10 along its passages or channels, follows they the sloping lower edges to the pointed edge of the trickle body, from where it mainly over the surface of the Layer or reinforcement film 14 passed down into the channel 16 and from there to a further collection system to be described in more detail below.

So that the above-described drainage system works as intended on the underside of the trickle body 10 it is important that the pointed teeth are on the outside Layers on the combs of an adjacent, underlying layer so that the liquid or the Water cannot drip off the tips, which would happen if they protruded freely into the room. this is illustrated in Figure 4 which is a side view the inclined lower surface of the trickle body 10 shows on a larger scale. From this figure it can be seen that the tips 18 of the outer layer or film 20 on and within the ridges 22 of the underlying Layer or film 24 lie and their tips 26 in turn on the ridges 28 of the next below Layer or foil 30. As the liquid, like the water, descends the edges of the cut layers to the surface of the reinforcement film 14 follows, the passages or channels formed by the folds or corrugations of the layers 12 are not clogged by the liquid, and therefore the gas rising from below, such as air,

3U8571

Cross these passages or channels unhindered.

As shown in FIG. 3 and already briefly indicated, the collecting channel 16 rests on supports 32 and 34, of which the latter has the form of a collecting trough into which the channels 16 empty their liquid. As in FIG. 3 illustrated by such an inclination of the trickle body 10 can be achieved that its lower edge and thus the channel 16 connected to this slope to the collecting trough 34 received. As shown in Figures 1 and 3, multiple trickling bodies can both in the lateral direction as also in the longitudinal direction with each other to form a cooling tower insert be assembled of the desired size and performance. Because the trickle bodies 10 are connected to the reinforcement plate 14, as can be seen in particular from FIG. 1 is, whereby this plate is also used for drainage, the trickle bodies are stiffened sufficiently that they allow large span between their support devices, i.e. in the present case the collecting channels 16 supporting them. This prevents the air from entering the cooling tower through the collecting channels 16 on the next to the Reinforcing plate 14 lying part of the trickle body 10 is negligible compared to the free areas on the underside the trickle body between the channels 16. This is because the upper edge of the channel 16 at a distance from the closest part of the beveled lower surface of the trickle body 10 runs, now the air is able, too to penetrate into the channels or passages closest to the plate 14. As already mentioned, the plate 14 has larger ones Strength, in the present case preferably greater heat resistance, than the remaining layers 12 of the trickle body 10 and is best made of this special for this purpose suitable material, such as metal or hardenable plastic, e.g. the duroplastic Noryl, or the like. In the embodiment illustrated in FIG. 2, a trickle body 40 is made up of corrugated thin layers 12 constructed in the same way as was already described for the embodiment according to FIG. One too corrugated reinforcement layer 36 is in the center of the

3U8571

Contact body 40 of FIG. 2 attached and preferably has shafts of the same height and width as that with 12, but is made of a stronger material, such as hardenable plastic or metal 1, as for the reinforcement plate according to the execution Figure 1 has been described. The layer 36 extends a little downwards over the remaining layers of the Contact body 40 addition. On both sides of the layer 36, the underside of the trickle body 40 is beveled in this way that it has the profile of a V, the apex of which rests against the reinforcement layer 36. All layers 12 and 36 are connected to one another by gluing, welding or the like in the above for the embodiment of FIG described type connected to each other, and a collecting channel 38 with the same task and effectiveness as in the embodiment of Fig. 1 is to the lower edge of the Reinforcement layer 36 attached. In order to improve the collection of the water flowing down into the collecting channel after leaving the reinforcement layer 36, can this channel can expediently be bent out at its upper edges to form a narrow rim 42. In the embodiment of Fig. 2 is at the top surface of the trickle body 40 on both sides of the reinforcement layer 36 a stiffening strip 44 or 46, e.g. by gluing or Welding attached. In addition to the stiffening function, these strips can also be used for the installation of the Trickle body into the framework of the cooling tower for application come.

Of course, the V-shaped part of the in 1 or 2 'illustrated trickle body also as a separate unit to be executed below the horizontal lower surface of the one used in the cooling tower Trickle body is attached to this. If this type of construction is preferred, this lower, separate Unit can also be used to suspend and support the rectangular part of the trickle body located above it.

FIGS. 9 and 10 accordingly show a modified one Embodiment of a trickle body embodying the invention Design, over which in the same way as e.g. in the embodiments according to Figs. 1 and 2 the upper Part 10a is made up of thin, corrugated layers 12 resting against one another.

The lower, conical unit 1 Ob, however, is formed with straight, vertical passages by the corrugated thin layers or foils 12a are placed so that their furrows run in a vertical direction. Included the central layer is connected at the bottom to a channel or a channel 16 of the type described above. Besides In the exemplary embodiment illustrated here, the corrugated layers 12a alternate with flat layers 14a, as in particular FIG. 10 shows.

In the embodiment shown in FIG is a trickle body 50 in several places at its lower end transverse to the plane of the layers 12, i.e. at right angles in relation to the beveled surface shown in Fig. 1, cut obliquely whereby a Number of V-shaped, pointed vertices η is formed. V-shaped collecting channels 52 are attached below these. Each of these channels is attached to a reinforcement plate 54 penetrating into the trickle body. To for the The V-shaped parts of the trickling body can create enough free space for the liquid trickling through the cooling tower be cut off at the top so that the trickle body is a certain distance from the bottom of the gutters 52 ends. The channel itself can be provided at the upper edge with outwardly bent longitudinal ribs in order to to prevent water from running off on the outside of the channels 52.

In the embodiment of FIG. 6, in which the same reference numerals as in FIG. 1 for common Parts used in both embodiments is on A latticework of strips 58 is attached to the beveled surfaces of the lower part of a trickle body 60. Every Bar includes bine vertical plate 62 and a transverse

3H8571

cut U-shaped channel 64 that runs along the lower edge of plate 62. Each ledge 58 extends along it the whole beveled surface of the trickle body up to the reinforcement plate 14. All water that is not flows into the channel 16 along the sloping lower edges. but from the surface of the giant body drips, is caught by the gutter-shaped parts 64 of the strips 58 and in this way into the Satnmelrinne 16 led down. By attaching example

1.0 wise every second bar in one of the immediate adjacent bar at a different distance from the underside of the giant! body, as illustrated in FIG. 6 is, the shielding effect that the bar lattice would otherwise have on the bottom into the trickle body 60 incoming air would have largely turned off. Fig. 6 also illustrates how the reinforcement plate 14 is slightly above the top surface of the trickle body 60 can protrude and be provided with a transverse strip 66 which extends along the reinforcement plate 14, to stiffen them.

In the one illustrated in FIGS. 7, 7a and 8 AusfÜhrungsform is a cross-sectionally U-shaped collecting channel 74 suspended under every third layer 72, the Bottom edges are straight. As can be seen in particular from FIG. 7a, each side of the channel 74 has a longitudinal, inwardly directed horizontal rib 75 which supports the layer 72, thereby ensuring is that the trickle body 70 is supported by all channels 74 via those designated here by 72. The lower Edges of the layers 76 and 78 covered on both sides of the layer 72 are inclined in the direction of the thus in the Layer 72 lying between them cut off. This achieves that three layers, namely the middle layer 72 and the layers 76 and 78 located next to it on both sides are drained into each channel 74. The channel 74 can, as illustrated in FIG. 7 and in particular in FIG. 7a, obliquely upward

3U8571

have outwardly angled upper edges 80 to prevent drainage to prevent water on the outside of the gutter. Fig. 8 shows the trickle body 70 in one built in box-like frame 82, for example made of glass fiber reinforced plastic, metal or the like Material can be made. The frame 82 has an inwardly directed reinforcing edge at its upper edges 84 and at least two of its lower side edges each have a channel or trough-shaped flange 86. At In this embodiment, the trickle body 70 sits in the frame 82 in such a way that the collecting and drainage channels 74 on the associated trough-shaped flanges 86 with a gap to the walls of the box-shaped frame 82 so that the water collected by the channels 74 can drain into the troughs 86, from there into the to be guided circulating system, not shown in the drawing.

The conical lower section of the trickle body 90, as shown in the embodiment of FIG. 11, inclined curved surfaces 88 may be used of the flat planar surfaces in the embodiments described above, in particular that of FIG. 9. The degree of curvature and its execution in detail is given the most suitable shape for the desired one Flow of the liquid through the trickle body. if Fig. 11 also shows a concave surface are also other curvatures, convex or differently shaped, conceivable for certain purposes.

The invention is of course not based on that Embodiments shown and described here are limited, but can be largely within the scope of the modify their underlying guiding principle.

L e r s e i t θ

Claims (14)

: ':: "': - Ί V. · Γ. · ': 3Η8571 FROM CARL MUNTERS Box 7093 191 07 Sollentuna Equipment at giant! Bodies for cooling towers and the like . PATENT CLAIMS M.) Device with a trickle body for liquid and gas, for example for use in cooling towers and the like., which is composed of spaced apart thin layers, the channels for the passage of the fed on the upper part of the giant! Form liquid in one or more collecting channels or located below the layers -troughs is collected, characterized by that the lower part of the trickle body (10, 40, 50, 60, 70) surfaces for guiding away the Includes liquid that is inclined to the horizontal and at least one collecting channel or collecting channel (16, 38, 52, 74) are connected to the they divert the liquid passing through the trickle body. 2. Device make claim 1, characterized marked that the surfaces for Guiding away the liquid are formed on the lower surface of the giant body (10, 50, 60, 70), which is cut off at an angle to a tip opening into the collecting channel (16, 38, 52, 74). 3. Device according to claim 2, characterized in that there is at least one (14, 36, 54, 72) of the layers of the giant body underneath the remaining layers (12,76, 78) of the giant body extends out and to the collecting channel (16, 38, 52, 74) connected and that the top of the sloping lower surface is close to this layer lies in such a way that the trickle body is emptied to this layer and from it into the collecting channel. 4. Device according to claim 3, characterized in that said layer (14, 36, 54, 72) higher strength, for example greater heat resistance than the remaining layers (12, 76, 78) of the trickle body (10, 40, 50, 60, 70). 5. Device according to one of claims 1-4, characterized in that the main part the thin layers (12) of the trickle body are corrugated is, and that the windings in every other layer intersect with those of the intermediate layer, where all corrugations run in their longitudinal direction at an oblique angle to the perpendicular. 6. Device according to one of claims 3-5, characterized gekennzeicnet that the below the lower surface of the trickle body protruding layer (14, 54) from a flat reinforcing plate, is preferably made of metal, which is preferably through the entire trickle body up to its upper Surface extends and is firmly connected to the collecting channel or the collecting channel (16, 52) and thereby carries the trickle body. 7. Device according to one of claims 3-5, characterized in that the under the lower surface of the trickle body protruding layer (36) is a dimensionally stable corrugated layer, which forms one of the corrugated layers of the trickle body, the dimensionally stable layer with the one underneath located collecting channel (38) is firmly connected. 8. Device according to claim 7, characterized marked on both sides of the top edge the dimensionally stable layer (36) over the whole Reinforcing strips (44, 46) extending along the length of the layer are attached. 9. Device according to one of claims 1-8, d a characterized in that the Areas for guiding the liquid away from the diagonally 3H8571 running lower surface or surfaces of the trickle body (10, 50, 60, 70) connected latticework of Rinnenförniiigen plates located at different heights below this surface or surfaces (64), which is intended to collect liquid that may drip off the surface or surfaces are. 10. Device according to one of claims 1-9, characterized in that the bodies are attached to supports (34, 86) which are located below and across the collecting channel or collecting channel (16, 38, 52, 74) run to gutters to guide away the collected liquid are formed. 11. Device according to one of claims 1-10, d a through marked thatthatthin Layers (12, 76, 78) of the giant body so to one another are arranged on the sloping surface of the lower part of the giant body so that the furrows (18, 26) a further outward layer (20, 24) on the ridges (22, 28) of the next layers below and end slightly within the edge of this latter layer. 12. Device according to one of claims 1-11, characterized in that the trickle body has an upper portion (10a) in which the thin layers (12) are corrugated and arranged so that the corrugations of every second layer are at an oblique angle with those of the layers in between cross to the perpendicular, as well as a lower section (10b), which the beveled surfaces to the Comprises guiding away the liquid, the layers (12a) of this section, which are corrugated, so arranged are that the corrugations of each layer are perpendicular. 13. Device according to claim 12, characterized characterized in that the corrugated layers of the lower section (10b) with flat layers (14a) alternate. 3U8571 14. Device according to one of claims 1-13, characterized in that the slopes Surfaces (88) are curved to direct the liquid away.