DE2552603C2 - Droplet separator for cross-flow cooling towers - Google Patents

Description

3 4

metry of the relevant separator section in front of drops of water;

given angle hit the water droplets as a result of ih- F i g. 8 a diagram to illustrate the improved

rer inertia on the relevant separator surfaces on rope separation property of the droplet separator

and drip off at the separator. According to the invention, the partial air flows are compared to that according to US Pat

which is fed to the second separator section and 5 30 65587;

again deflected by a certain angle F i g. 9 shows a schematic, vertical partial section

Here, too, water droplets meet the ab- a cooling tunnel according to the invention with a large number Separator surfaces and drip into the separator section stacked vertically between the two in one direction Between the separator sections for the exit area of the filling device of the cooling tunnel.

the water flow. Because of this space between 10, the complete arrangement and

mes can the water, which in each individual Ab- F i g. 10 shows a section according to FIG. 9, but with horizontal

separator section is collected, separated into the separator which is arranged offset to one another

Drain the underlying cooling tower water. By cutting open.

The droplet separator 20 for the cross-flow cooling doors separator sections is a water build-up at the 15 Me is in the F i g. 1 to 4 shown. It contains an inlet surface of the droplet separator and avoids a plurality of elongated, pre-formed, generally a pressure loss. In the case of the sinusoidal, corrugated segments 22 according to the invention, the side of the droplet separator is arranged at the angle between the side, the segments 22 between the plane of the If there is an obtuse angle, it can be placed in a pair of elongated plate parts 24. The individual waves of seglust can be achieved with an optimal ratio of degree of exhaustion and pressure loss. elements 22 denoted The plate parts 24 are elongated,

According to a particular embodiment of the transversely V-shaped plates, a pair of Finding it is provided that the direction of the air through segments 22 at a distance and opposite passages in the first section with respect to the direction of flow to each other and sandwiched between each plate is inclined in the horizontal direction. Each pair can be arranged. The V-shaped plates 24 are slied also an inclination in the vertical direction and Ben an obtuse angle in the transverse direction. As an inclination both horizontally and vertically, in particular the representation of FIG. 3 can be found be provided ler direction. With the air passages in, the mist eliminator 20 includes a first cover first and second separator sections should separator section 23 and a second, identical an angle of approximately 10 ° to 60 ° relative to the separator section 30 constructed, which is laterally relative to Be arranged horizontally, preferably that of the separator section 28 should be arranged and of Angle approximately Ϊ5 ° to 50 °, especially this one by a gap 32 for the water about 30 °. The individual elongated air ducts are separated by the angle between the inflow direction passages within each separator section 28 direction and the direction of the air passages in the first 35 and 30 are through the individual shafts 26 in the verAbabschnitt on the one hand and the angle between the air-divided segments 22 and through the adjacent channels the first section and those of the second th plates 24 limited

On the other hand, the section is essentially the same size. The V-shaped arrangement of the plates 24 allows the air passages to be cut through a plurality of a plurality of mutually aligned droplet-elongated, pre-formed, generally sinusoidal separators 20 as shown in FIGS. 5 gene, corrugated segments may be formed, side-by-side and 7 side-by-side. Thus, for example, side can be arranged, with the segments sandwiching a pair of droplet separators 20a and 206 completely stacked between a pair of elongated plate parts in a manner adjoining one another, without lying. Said plate parts are primarily designed as some undesirable vertically elongated, transversely V-shaped plates forming the space along the connecting line, a pair of spaced apart segments forming the two droplet eliminators
and opposite to each other and sandwiched The illustration of FIG. 1 to 7, in particular which is arranged between each plate pair F i g. 6 and 7, it can be seen that the direction 42 of the

In the following description, air passages in the second section 30 in a winder Drawings of exemplary embodiments of the invention as described in relation to the direction of flow 38 and the direction of flow. It shows device 40 of the air passages in the first section 28 defined

F i g. 1 is a partial end view of a nate plane run. The direction 40 of the air mist eliminator; passages in the first separator section 38 is referred to

F i g. 2 is a partially illustrated side view of the direction of flow 38 both horizontally and horizontally Droplet separator according to FIG. 1; 55 also inclined in the vertical direction, so that here F i g. 3 result in a partially illustrated top view of the partial air streams, which are directed laterally upwards Droplet eliminator as shown in are. In the second separator section 30, the F i g. 1 and 2; Partial air flows deflected laterally, but the wind F i g. 4 a further side view of the droplet cap which the partial flows enter with respect to the horizontal

Scheiders according to line 4-4 in FIG. 3; Take 60, remains unchanged. The partial air flows leave

Fig.5 is a partially shown, schematic sen the second separator section in the direction of the Top view of a nested drop separator arrangement arrow 42. The air passages in the first and two

tion; th separator sections 28 and 30 should be in one

Fig. 6 is a partially shown, schematic end angle of approximately 10 ° to 60 ° relative to the horizontal

view of the droplet separator to explain the draining, preferably the angle should be

separation process of water droplets; around 15 ° to 50 °, in particular around 30 °,

F i g. 7 is a schematic plan view of the drop delivery. The illustration of the figures can also be seen.

Scheiders to explain the separation process of the men that the angle between the direction of flow 38

and the direction 40 of the air passages in the first separator section on the one hand and the wink! between the air ducts of the first separator section 28, represented by the arrows 40 and those of the second separator section 30, represented by the arrows 42, on the other hand, are essentially the same size.

During the movement of the moist air along the first and second separator sections 28 and 30 causes the inertia of the entrained water droplets that these against the adjacent walls of the to Bump sections. This causes the impacted water droplets to collect on the walls and allow an elimination of the water droplets by the gravitational runoff, as indicated by the arrows 44 and 46 in FIG. 6 is shown; s

The representation of the F i g. 8 is used for clarification the improved operating properties achievable with the invention. A 12.7 cm was compared 5 inch wide mist eliminator according to the present invention having a 12.7 cm (5 inch) wide Droplet eliminators similar to the type shown in FIG. 9 of the U.S. Patent discussed in relation to the prior art 30 65 587 was described. The diagram shows the spray loss rate as a function of the Speed at which the air enters the filling device 2s the cross-flow cooling towers in question leaves For the droplet separator according to US-PS 30 65 587 was the Spray loss rate arbitrarily set as 100% As can be seen clearly from the graph, the spray loss rate is when using a mist eliminator according to the invention at least five times smaller than that in the known mist eliminator.

The F i g. 9 and 10 show the use of the mist eliminator in connection with annular cross-flow cooling towers. In such a cooling tower is a Conventional filler 92 built in. A mist eliminator 93 is at substantially the same angle inclined like the exit surface of the filling 92 and contains a series of three vertically inclined separator sections 94, 96 and 98. The representation of FIG. 10 shows horizontally offset separator sections 100, 102 and 104, the lowermost section being located furthest towards the center of the cooling tower, the next higher section 102 is offset horizontally outward, finally the highest section 104 is even further out

For this purpose 3 sheets of drawings

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65

Claims (10)

1 2 The invention relates to a droplet separator for patent claims: Cross-flow coal towers with first and second separator sections, each of which has a large number of air through 1. Droplet separators for cross-flow cooling towers formed, the air flow in the first section with first and second separator sections, which are deflected from the direction of flow and which each form a plurality of air passages. Air passages of the second section at an angle to the wherein the air flow in the first section from the air passages of the first section.
Direction of flow is deflected and where the cooling towers of the type mentioned with open heat-air passages of the second section form an angle to me- and mass transfer between the air passages to be cooled of the first section, 10 circulation water and the air flowing through are characterized in that the separating - the usually entrained water droplets, which with the sections (28,30) get into the open air flow in a row one above the other. The ascending arrangements have separate ducts, whereby the demands on the industry and its units towards these rows form an angle with each other, obviously the influences on the environment require the use of specially constructed droplet separators, to be arranged at a distance from one another in order to largely reduce this discharge of water. In the space (32) for the water discharge to bi! - droplet separator, the air flow is increased or increased. times deflected so that the water droplets as a result of their 2. Droplet separator according to claim 1, characterized rer inertia impinge on the separator surfaces, themselves characterized in that the angle between the levels 20 collect there and drip from the separator surfaces the rows are at an obtuse angle. 3. Droplet eliminator according to claim 1 or 2, a droplet separator of the type mentioned is from the characterized in that the direction of the air US-PS 35 00 615 known This shows two flat single passages in the first section (28) regarding the sentences, which are of a number of oppositely corrugated Inflow direction (38) in the horizontal direction are formed 25 elements which are essentially parallel tends to be arranged, however, the shafts being adjacent 4. Droplet separator according to one of claims 1 elements are aligned transversely to one another. Through this to 3, characterized in that the direction of the results in a large number of mutually overlapping Air passages in the first section (28) relative to and communicating air passages Direction of flow (38) in the vertical direction. As it is with the well-known mist eliminator tends to be completed, separate passages are therefore absent 5. Droplet separator according to one of claims 1, there are no clearly defined flow paths, is the to 4, characterized in that the air through-flow process of the moist air is random in the first and second separator sections. This determines, on the one hand, the degree of efficiency cut (28,30) at an angle of about 10 ° 35 of the known device, which eliminates the are arranged up to 60 ° relative to the horizontal. As far as moisture from the humid air is concerned, relatively 6. Droplet separator according to claim 5, characterized by low and on the other hand it comes to a strong characterized in that the angle is approximately 15 ° to 50 ° pressure drop in the mist eliminator. As the drop wears away separator only has a single drainage surface for the 7. Droplet separator according to claim 6, characterized in that «de water, is finally the risk of Vergekiert, that the angle about 30 ° blocks the air outlet due to the large volume carries the draining water given. 8. Droplet separator according to one of claims 1 from US-PS 30 65 587 is a droplet eliminator in to 7, characterized in that the angles between honeycomb type with wooden flaps arranged behind the honeycombs the direction of flow (38) and the direction 45 th known. The moist air flows through the honeycombs, one of the air passages in the first section (28) is deflected for the first time, the wooden slats direct the on the one hand and the angle between the air ducts of the moist air again around. Also this mist eliminator first section (28) and those of the second Ab- has the disadvantages discussed above. cut (30) on the other hand substantially the same. It is an object of the present invention to provide a are great. so to improve droplet separators that the 9. Droplet separator according to one of claims 1 ratio of degree of separation and pressure loss optibis 8, characterized in that the air is permeated, while at the same time the outflows are better removed through a multitude of elongated, pre-separated waters. shaped, generally sinusoidal, corrugated The object is achieved in that the separating Segments (22) are formed, the side-by-side 55 of the sections in a row one above the other arranged separately are arranged, the segments (22) having sandwich-rate channels, the planes of these being pure form an angle with one another between a pair of elongated plate parts and that the len (24). two sections at a distance from each other. 10. Droplet separator according to claim 9, characterized in that it is arranged to provide a space for the water, that the plate parts (24) elongated, in 60 guide to form. Transverse direction V-shaped plates are, with a By the inventive design of the trop- Pair of segments (22) at a distance and separator is the air flow when it hits opposite to each other and sandwiched between the first separator section from the flow direction between each pair of plates is arranged. and distracted by the rows on top of each other 65 arranged separate channels into a multitude of separate ter partial air flows divided, the corresponding Flow through the separator section in a defined manner. As a result of the deflection of the air flow by one caused by the geo-