DE2508122A1 - AIR COOLER TRAINING WITH DAMPER DEVICE FOR WATER SOUNDS - Google Patents

Description

Herne, 8000 Munich 40,

la (■. ·. ■ E) 'Γ? I Eissnacher Strasse 17

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P.O. Box IM l ^ ifjl.-inC ,. H. ti. UatlT Pal.-App. BeUIer

“Mt-Anw. Herrmann-Trcntepohl DID! -PhVS EdUafd BStZlCF Telephone: 36 3011

Telephone: 5 10 ^ 3 r · t " 36 3012

⁵¹⁰¹⁴ Dipl.-Ing. W. Herrmann-Trentepohl

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Bayerische Vereinsbank Munich 952 Dresdner Bank AG Herne 7-520 439 O CnO 1 O TOstscheckkonto Dortmund 558 68-467

Rb,.: A 26 567

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February 24, 1975

HAMON-SOBELCO, SOCIETE ANONYME, SAINT-GILLES-LEZ-BRUXELLES (Belgium)

Air cooler design with damper device for water noises

The invention relates to air cooler devices in which a liquid as a result of gravity in an exchanger body descends where they are brought into thermal contact with an atmospheric air stream is cooled. The invention relates in particular to a device for damping the noise falling water in air cooler devices of this Art.

An air cooling device is generally in the form of a chamber in which a fluid, for example Water trickling down a heat exchanger body and collected at the base of it in a basin from which it is raised again by a pumping system

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is taken. The warmed atmospheric air in turn is released into the atmosphere at the top of the construction pushed out.

The falling water makes a very audible noise; especially caused by the impact the water droplets on the bathroom mirror of the basin. Of course, this noise takes away the height of the waterfall and can have a height of 80 to more than 85 dB (A) at the pool surround.

Of course, this sound of falling water is not the only sound that the air cooler devices make. The fans naturally also contribute to this ; however, it has been possible to significantly reduce fan noise by using new fan models which are less noisy and are available on the market. In contrast, it has not yet been possible to reduce the noise of the water by means of industrial equipment.

Of course, attempts have been made to find a solution to this problem of water noise. Has to do this you already have mats made of various materials (fibrous or wool-like materials softer Consistency, which could be organic or mineral in nature), which were placed on the surface of the water, to make this impact sound to suffocate.

However, these mats have the disadvantage that they get dirty quickly, which means frequent cleaning or cleaning.

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even means their replacement. In addition, is common Attaching and removing such mats on surfaces of several hundred and even several thousand square meters too laborious. According to the invention, a simple and practical device is now to be proposed, to dampen the impact noise of water falling in the free pail from the exchanger body, by essentially avoiding the rebounding of the water droplets.

For this purpose, it is proposed with such an air cooler design, above the liquid level in the basin to provide a sound attenuator device consisting of a group of elements "so arranged that these each have one or more surfaces with an adequate inclination with respect to the direction of fall the liquid droplets are oriented.

The elements of this silencer device can made of flat or corrugated plates, associations of corrugated and / or flat foils, elements with curved Profile or conical or, for example, polyhedral Gest, be formed. You can do this in a variety of ways be held or fastened by, for example, attached, suspended, or floating by means a system which is different from or common to the elements of the Eühleraustauscherkörpers is.

Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings are explained in which:

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Fig. 1 shows a vertical section through a device according to the invention;

Pig. .2 is a plan view of the device of FIG. II

Pig. 3 is a vertical section through another

Embodiment of the device according to FIG. 1;

Pig. Figure 4 is a top plan view of the device of Figure 3;

Pig. 5 is a vertical section through another Embodiment of the device according to the invention; the

Pig. FIGS. 6 and 7 each show a different embodiment in the view and in the plan view according to the invention; and

Pig. 8 shows schematically a mounting system for the device according to the invention;

The one in the Pig. 1 and 2 illustrated first embodiment of the invention shows schematically in section a Part of a basin 1, which collects the liquid from an exchanger body (not shown) in trickling down an air cooler. The exchanger body can be of any type. The noise reduction device according to the invention consists of a group of plates 3 »for example made of asbestos cement, Wood or any organic polymeric material, the panels partially filling the basin 1

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Immerse the liquid. The plates 3 are planar as can be seen in the plan view of FIG. 2 and are parallel to each other with an inclination "with respect to the plane 10 of the liquid surface in the basin arranged in such a way that they for the liquid drops falling from the exchanger body 2 Form surfaces that are inclined to the vertical. In this way, the drops of liquid counteract the surfaces of the plates 3 instead of falling onto the liquid level 10 in the basin; the slope of the Impact area is chosen so that the drops do not ricochet, but trickle down on these surfaces. The inclination of the plates is adapted to the Height of fall of the liquid.

The distance between the plates 3 is chosen for a given slope so that between the plates the formation of openings is avoided, which the free fall of the liquid droplets on the liquid level Allow 10 in the bathroom.

Fig. 3 shows a group of inclined plates, which at a small distance (a few 10 cm maximum) above of the liquid level 10 are arranged.

The plates of the noise dampening device are not necessarily planar; Fig. 4 shows an example where the panels are corrugated. They can also have curved surfaces, where the It is essential to see that the plates are inclined with respect to the surface of the droplets that fall the vertical offer.

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Another embodiment is shown schematically in section shown in FIG. 5. The noise attenuation device consists hereafter of parallel elements 4 with a curved profile. The inclination of the impact surfaces is in this case variable.

The plates need one and the same device not necessarily have the same design; for example, you can alternate between flat plates use with corrugated sheets. It is also possible to use corrugated foils and / or to use flat foils that are welded together.

Another embodiment of the invention is shown in FIGS. Fig. 6 is a View (the basin is shown in section) and FIG. 7 is a plan view. The device according to the invention here comprises a series of elements 61 of a conical shape, which are arranged on a 62 mesh which is provided above the liquid level 10. The elements 61 can also be of be polyhedral in shape. The periphery of the base of members 61 is preferably curved to accommodate the drain to ease the liquid. Me elements can also overlap. If you look at 6, it can be seen that the effect obtained with these elements 61 is similar to that obtained with plates of the examples described above, in the sense that these elements are such that the liquid droplets 2, which fall from the exchanger body, reach the elements on the surfaces that they give them provide under an adequate slope to their rebound

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and avoid the little noisy trickling into the V ^"r anne to begünsigen the basin.

The elements forming the device according to the invention can be held or fastened in the most varied of ways: by fastening, by suspension or by flotation. They can be attached to any support system or hung from any hanger arrangement, whereby they are fixed to the support or suspension device of the elements of the exchanger body, or they can be separate from the latter arrangement. An I ¹ Iotation mounting arrangement can also be used. Pig. 8 shows elements 81 resting on floats 82 which have been placed on the liquid level 10 of the basin. The advantage of this arrangement is that the position of the noise damper can be adjusted to the level of the liquid level, which can be of interest in cases where this level fluctuates greatly or when the height of the elements is low.

With regard to a concise representation, the invention was explained using only a few embodiments; Changes and modifications are within the scope of the invention.

Claims - 8 -

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Claims (6)

A 26 567 CLAIMS 1. air cooler training, in which a liquid flows as a result of gravity in an exchanger body, in which it is cooled in thermal contact with an atmospheric air stream and then collected in a basin, characterized by a silencer device above the liquid level in this basin, with a group of such arranged elements (3), each having one or more surfaces which are oriented with an inclination with respect to the direction of fall of the liquid droplets, so that rebounding of the liquid droplets is substantially reduced. 2. Air cooler training according to claim 1, characterized in that the elements are made of parallel plates (3) exist. 3. Air cooler training according to claim 1, characterized in that these elements have a curved profile (Fig.4) have. 4. Air cooler training according to claim 1, characterized in that these elements from corrugated associations and / or flat foils. 5. Air cooler training according to claim 1, characterized in that these elements consist of elements of polyhedral shape which are aligned with one or more surfaces at an inclination with respect to the direction of fall of the liquid droplets in such a way that 509837/0620 - 9 - a rebound of the liquid droplets is significantly reduced. 6. Formation according to claim 1, that these elements are formed from elements of a conical shape (61) are whose side surface is inclined with respect to the direction of fall the liquid droplet is such that a rebound of the liquid droplets is substantially reduced. 5098 £ 7/0620 / Ct Blank page