JPH0457959B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to water cooling towers, and more particularly to an improved film filling assembly for use in evaporative cooling towers.

More particularly, the present invention relates to a film filler assembly made of packs of filler sheets arranged in vertically oriented side-by-side relationship. Each sheet not only provides a central air/water contact area in a chevron pattern, but also cooperates with identical sections of adjacent sheets to distribute hot water evenly over the flat surface of the filling assembly. A working undulating upper peripheral section is also defined. Each sheet also has a partially honeycomb-shaped structure that cooperates with each other within the assembled fill pack to define a flow path for controlling the passage of cooling air or airflow into or out between the horizontally aligned packs. Provides side edges. Integral, horizontally extending corrugated areas are optionally provided between the top and bottom edges of each sheet to facilitate redistribution of hot water as it flows down over the main air/water contact area of each filled sheet. is bringing.

The novel shape of the film-filled sheet not only allows assembly of individual sheets by known vacuum forming techniques, but also provides a pack that maintains the desired thermal working properties without creating undesirable air pressure drops. It also minimizes the number of differently shaped sheets that must be formed and then assembled.

BACKGROUND OF THE INVENTION Water cooling tower filling assemblies have been used for many years, typically using a series of horizontally arranged flat splash bars placed in horizontal and vertically spaced relationship to fill the filling. The hot water falling by gravity through the rod collides with the rod and scatters, increasing the surface area of the water and thereby increasing the cooling effect.

More recently, film-filled packs consisting of vertically positioned and horizontally spaced plastic sheets have been used to replace the splash bars. This is due to the slow flame properties of such materials, the reduction in size of the overall filling assembly, i.e. the reduction in pumping height, and the minimization of the overall dimensions of the tower cooperating with the film filling unit.

Film filling design factors include a means of splashing water onto a thin film over the surface of the filling sheet to obtain maximum surface area, and slowing down the gravitational flow of water to allow maximum water contact with the cooling air. and means for providing turbulent air flow without excessive air pressure drop.

For these purposes, each surface of the sheet filler members making up the multi-sheet filler assembly is often provided with a zigzag pattern that effectively increases the available surface of the filler member and reduces the flow velocity of the descending film of water. It is structured in a chevron pattern. This chevron pattern can also be produced by well-known vacuum forming techniques that have been used in the plastics industry for many years. During this vacuum forming, negative pressure is applied to predetermined portions of an initially flat synthetic resin sheet to draw it into the recesses of the molding die, forming valleys and protrusions, or peaks, on one side of the sheet. Peaks and valleys of desired shapes can be formed on the surface. Regarding this, specific chevron pattern film filling sheets are disclosed in U.S. Pat.
It is disclosed in No. 4548766 etc.

PROBLEM TO BE SOLVED BY THE INVENTION In order to prevent the occurrence of excessively concentrated air pressure drops that would significantly reduce the thermal efficiency of the film filling member, cooling zones in a chevron pattern of adjacent sheets of the filling assembly are provided. It is very important to maintain the predetermined void relationships. During operation of a cooling tower, the thin plastic sheets incorporated in the filling elements are often twisted, bent or curved by exposure to hot water, thus cutting off adjacent voids available for air passages. It has been found that there is a tendency to reduce the area. Moreover, because these relatively thin sheets are generally made of thermoplastic materials such as polyvinyl chloride, there is an increased tendency for these sheets to sag and bend under normal operating conditions of the cooling tower.

At the top of the fill pack, the peripheral tops of the sheets tend to deform each other irregularly, which prevents uniform distribution of hot water across the entire flat surface of the film fill assembly and prevents the opposing edges of each sheet of the fill pack. It interferes with the uniform gravity flow of water flowing down across the surface.

Heretofore, integral individual spacers have been formed on film filled sheets to maintain uniform spacing of the sheets through the pack. An example of such a spacer is disclosed in the above-mentioned US Pat. No. 4,320,073. Here, an outwardly extending indexing unit is positioned at spaced apart locations across a chevron-shaped cooling zone of sheet material such that it engages each recess-forming wall positioned on an adjacent sheet. It is located in On the other hand, such indexing units are satisfactory if they are present in sufficient numbers to maintain a predetermined spacing between adjacent sheets of the portion within the chevron-shaped cooling zone; Such integral indexing units are unable to prevent the entire top periphery of each sheet from bending. Furthermore, if a suitable number of spacers are provided to prevent deformation of the filler sheet,
These spacers create obstructions to airflow that alter the thermal efficiency of the fill pack.

In most cases, film filling assemblies are used in small package type water cooling towers. Recently, however, there has been interest in using such film filling assemblies in large industrial type water cooling towers. However, the characteristics and construction of known vacuum forming machines limit the width of each sheet formed with such equipment for practical purposes. Typically this measures about 4 feet or less. As a result, the two packs of filling material are
Often they are arranged in side-by-side relationship in the direction of air flow to provide a suitably sized filling assembly between the air inlet and the air outlet. The outermost edge of the outer filler pack sheet is typically shaped to provide a series of upright air inlet chevrons, while the peripheral innermost edge of the inner filler pack is configured to provide air exiting the filler assembly. The structure provides a flow reduction structure to separate the water droplets contained therein from the flow.

These sloping air inlet chevrons and flow reduction elements providing air inlet passages and air outlet passages are convoluted in shape and under normal hot water temperature conditions the main portion of the upright outermost edge of the fill sheet The same is not true with respect to the upright edges of the immediately adjacent fill pack in immediate relative relation. However, since uniform transfer of air from the outer fill pack into the inner fill pack is fundamental to maximum thermal performance efficiency, it is also very important to prevent bending and distortion of the edges of adjacent fill packs. It is.

Finally, in order to obtain a uniform loading of water across the entire flat surface of the packing, a deck assembly or other water dispersing device is placed in direct upper-lying relation to the top surface of the film packing pack below the hot water dispersing deck or dispersing device. It is often necessary to provide structure.
Even with the extra expense expended by providing a dispersion structure lying on a film-filled pack,
The cooperation of such additional devices often did not solve this problem. This is because the distortion and deformation of the upper edges of the film-filled sheets may cause the water to fill the void between adjacent filled sheets rather than groove into some passage due to the actual extent of the open area provided at the top of the film-filled pack. This is because it prevents the water from flowing at a substantially equal rate.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides, in particular, a film-filled pack which is arranged in a series relation in the direction of air flow through a cooling tower and an area directly receiving hot water to be dispensed onto the film-filled pack. A structure is provided that ensures equal sized openings between the edges of the sheets of a multi-sheet film filling assembly at adjacent abutting surfaces. The invention provides a water dispersion structure with spacing extending along the top edge of each sheet and extending horizontally along its intermediate region. Spaced air directing structures cooperate within the fill sheet and extend in an upright direction along opposite side edges of the sheets of adjacent packs.

More particularly, the spaced water distribution structure includes an integrally formed undulating water distribution and spacing section across the width of the mid-region of each sheet and along the top edge of each sheet. There is. This wavy shape provides a series of spaced peaks and troughs each having a longitudinal axis, which axes are approximately parallel to the longitudinal axes of opposing peaks and troughs of adjacent sheets. tilted in the opposite direction. Preferably, the peaks of the corrugations are of such length that they meet the peaks of adjacent sheets at two spaced apart locations or points of intersection, thereby avoiding excessive distortion of each sheet over the expected life of the filling assembly. Each sheet provides sufficient stability to prevent

At the top of each fill pack, this wavy spacing, water distribution structure receives water directed from the upper nozzle or orifice to the top of the fill pack and includes cooperating sections of cooling zones in a downward chevron pattern. It functions to distribute the water into a stream that results in a fairly uniform loading. The undulating structure of the spacing structure prevents water from falling from the upper hot water distribution basin and transforms independent streams or droplets of water into a film of water flowing down across the opposite side of the fill sheet. The efficiency of the tower is thus significantly improved by preventing water from channeling within the voids between adjacent sheets.

If the intermediate region of the film-filled sheet has horizontally extending corrugated spacers and water distribution areas, the corrugated area relieves stresses that may occur in the inner portions and reduces the stress of such portions of the sheet. The structure eliminates distortion and deformation and also maintains the desired internal sheet gap between the cooling zones of adjacent sheets. The corrugated structure of the intermediate spacing and water distribution structure serves to reshape the falling film of water and provides uniform loading of the lower portion of each fill pack.

In a preferred embodiment of the invention, the longitudinal axis at the peak of the corrugated area of each sheet is inclined at an angle of about 30° from the horizontal, while the longitudinal axis of the peak of the remaining sheets is about 30° from the horizontal.
It is tilted in the opposite direction at an angle of 30°. The prominent vertical extent of each corrugation is selected such that each peak touches two peaks of adjacent sheets at two spaced locations or points of intersection;
These corrugations thereby provide adequate stability to the peaks without unduly reducing the overall extent of the chevron-patterned primary cooling zone of each filler sheet. The angle of inclination of the spacing and water dispersion corrugations is preferably no greater than about 30 DEG to prevent an unsatisfactory pressure drop of the air flowing through the fill pack.

The spacing and air-directing structure extending vertically along directly opposing sides of adjacent fill packs positioned in series is honeycomb-like in vertical cross-section, and each sheet The upright wall segments of are in contact with the wall segments of adjacent sheets. These sheets are structured to provide a smooth transition between the chevron pattern cooling zone and the honeycomb structure. Air exiting the outer filling pack is thereby guided horizontally into the honeycomb structure of the air inlet face of the adjacent pack. This honeycomb structure and transition surface reduces the turbulence of the air flowing between the packs and may occur, for example, when sheets of the outer filler pack do not lie in a common plane with immediately adjacent sheets of the inner filler pack. The structure is such that the influence of misalignment of sheets in each pack is minimized.

The cooperative effect of the horizontally extending wavy spacing and water distribution structures and the honeycomb-shaped air directing structures extending along the adjacent edges of the sheets of both fill packs is to It is constructed to minimize resistance to airflow flowing through the cooling zone while maintaining appropriate sheet spacing around the periphery of each cooling zone and around the sheets.

OPERATION Vacuum formed filler sheets for water cooling towers are provided in a structure in contact with adjacent sheets to maintain appropriate spacing between internal cooling zones formed within the sheets and around the perimeter of the sheet. The top periphery of the sheet is formed in a wavy pattern such that the peaks and troughs of adjacent sheets allow film-like flow of water above the cooling zone below while maintaining sheet spacing. tilted in the opposite direction. Additionally, the honeycomb structure formed along the opposite side edges of adjacent sheets helps maintain the required sheet spacing while minimizing pressure losses and facilitating air flow between adjacent fill packs in the horizontal direction. It functions as a guide. This honeycomb structure and corrugated areas reduce stresses within the sheet that would cause the sheet to warp, sag, or bend.

EXAMPLE Reference is first made to FIG. A film packing assembly for a water cooling tower is shown generally at 10 and includes an outer film packing pack 12 and an adjacent inner film packing pack 14. Although not shown, these fill packs 12, 14 include hot water dispensing means consisting of a series of nozzles, holes or other means for conveying hot water to be cooled across the flat surface of the fill assembly 10. It will be appreciated that the cross-flow type mechanical ventilation is used in a cooling tower having a cross-flow type mechanical ventilation. As is known in the art, a cold water collection basin is provided overlying the film packs 12,14.

As is known, cooling tower fans draw a stream of air through the film packs 12, 14 generally transversely to the water stream descending by gravity.

Each film pack 12, 14 is in the form of a series of spaced, opposed upright, facing alternating sheet-like filler members 16 and 18, 20 and 22, respectively. Each sheet member 16-22 is advantageously of unitary construction and is preferably formed by vacuum forming from a suitable synthetic resin material such as polyvinyl chloride.

Respective sheets 16, 18 of outer filling pack 12
The outermost edge of the assembly 10 is shaped to provide a series of air inlet loopers or chevron pattern members 24 extending along the entire length of the assembly 10. Furthermore,
Each sheet 2 of the inner film filling pack 14
The outermost edge portions 0,22 have a series of formed draft reduction members 26 extending from the top to the bottom of the assembly 10. Louvers 24 and reduction members 26 each have longitudinal axes that are inclined relative to the horizontal, as will be apparent to those skilled in the art.

Cooling zone 28 extends across most of the opposite sides of each sheet member 16-22. As shown in FIG. 1, each of the sheets 16-22 is shown as having two cooling zones 28, respectively. However, more cooling areas 28 are desired, for example, if the length of the parallelogram-shaped sheets 16-22 of the filler packs 12, 14 is extended to accommodate the space available in a larger tower.

Referring to Figures 1 to 3 and Figure 5, cooling zone 2
8 is a vacuum formed wavy repeat represented more particularly by a series of zigzag serpentine chevrons forming spaced ridges 30 on both sides of the sheets 16-22. These chevrons are comprised of a return pattern, with each adjacent pair of ridges 30
A zigzag groove 32 is defined therebetween. Ridges 30 and grooves 3 of cooling zone 28
2 conforms structurally to the zigzag ridges and grooves of the cooling zone shown in the aforementioned US Pat. No. 4,548,766.

Referring to Figures 1, 2 and 4, each sheet 16~
22 is configured to provide a top sheet spacing water distribution area 34 and a middle sheet spacing air direction area 36, optionally with the sheet spacing areas being configured such that the vertical length of each filler sheet is, for example, as shown in the figure. Provided if larger than shown. Both sheet spacing areas 34, 36 extend substantially across the entire width of each filler sheet 16-22.

Sheet spacing areas 34, 36 are integrally formed in an undulating configuration with each filler sheet 16-22 and provide a series of elongated peaks 38 at predetermined intervals on both sides of filler sheets 16-22. These peaks 38 are interconnected by a series of corresponding valleys 40 at predetermined intervals so that each filler sheet 16-
A certain peak part on one side of 22 has a valley part 40 on the other side.
is formed.

Peak portion 38 on each side of sheets 16-22
extend horizontally outwardly through the tops of the ridges 30 of adjacent cooling zones 28 . As an example,
The thickness of the cooling zone 28 (i.e., the horizontal distance from the top of each ridge 30 on one side of the sheet to the top of an adjacent ridge 30 on the other side of the same sheet) is approximately 0.180.
~0.30 inch, while the thickness of the spacing area (i.e., from the top of one peak 38 to the opposing adjacent peak 3 on the opposite side of the same sheet)
8) is approximately 0.75 inches. However, other dimensions are also possible.

The respective longitudinal axes of the peak portions 38 and trough portions 40 on each surface of these sheets 16-22 are aligned with the first
Opposite directions with respect to the longitudinal axes of the peaks 38 and troughs 40 of adjacent surfaces of adjacent sheets 16-22, as best understood by viewing the fractured portions of sheets 16, 20 as shown in the figure. is inclined to. The longitudinal axis of each peak 38 and trough 40 extends at an angle from horizontal, preferably about
In a particularly preferred embodiment of the invention, the slope of the longitudinal axes of the peaks 38 and the valleys 40 is approximately 30 degrees from horizontal.

Referring to FIG. 4, peaks 38 on each side of each sheet 16-22 maintain a constant horizontal spacing of the filler sheets thereby
each adjacent sheet 16~ to maintain the desired predetermined horizontal spacing between ~22 corresponding cooling zones 28.
It is in contact with the peak portion 38 of the central surface of 22.
What is important is that the peak portions of the adjacent filling sheets 16 to 22 have a smoothly curved shape and the peak portion 38
The oppositely slanted directionality of the wavy spacing areas 34, 36 allows the adjacent areas 3
4, 36 can be engaged.

Preferably, these corrugated areas 34, 36 span the peaks 38 of adjacent sheets 16-22 at two locations or intersections to provide a predetermined amount of stability to the sheets 16, 22 and thus to the fill packs 12, 14. This is the height at which the peak 38 touches. Moreover, the pronounced vertical extent of the corrugated sections 34, 36 is advantageously no greater than sufficient to provide two intersecting points of contact between adjacent opposing peaks 38. The filling sheet 16~ which is thereby available for the cooling zone 28
The area of 22 will not be unduly reduced. sheet 1
The spacing between 6 and 22 is determined by the shape of the peaks 38 and the cooperating valleys 40. It has been found that a desirably 30 DEG angle of inclination of the peak portion 38 provides two points of contact sufficient for a given stability of the sheets 16-22 within a limited vertical extent of protrusion.

Furthermore, the corrugated sections 34, 36 function to distribute water uniformly and evenly across the top of each cooling zone 28 below. Along the top periphery of each sheet 16-22, a top sheet spacing area 34 receives streams or drops of distributed water from nozzle devices, holes or other dispensing structures and distributes the water to adjacent A film is formed on the surface of each side of the corrugated region 34 that gravity flows downwardly across it with additional dispersion at each contact point of the peak portion 38. Upon reaching the lower end of the upper corrugated section 34, the film continues to descend toward the cooperating section of the cooling zone 28, e.g., as shown in FIG.
The surfaces of .about.22 meet smoothly in the region between the corrugated areas 34, 36 and the cooling zone 28 below to avoid unnecessary grooving of the water film.

Referring to FIG. 4, the shape of the peak portion 38 is as follows:
It can be seen that substantially all of the fallout of the water dispersed from the upper spray device is blocked. This water impinges on the upper corrugated area 32 and is lowered in the plane of the sheets 16-22 to prevent it from freely falling through the voids between the cooling zones 28 until it reaches the collection basin of the tower below. It turns into a film of water. Otherwise, due to such free fall, the bypassing action of the water would adversely affect the thermal performance of the filling assembly.

The upper undulatingly spaced water distribution areas 34 also advantageously align each sheet 16 to a substantially straight vertical reference plane.
22 to prevent distortion of the top free edge of each filler sheet. Additionally, this corrugated area 34 has been found to relieve a substantial amount of sheet stress that would otherwise occur internally.

Similarly, the intermediate corrugated areas 36 relieve a substantial amount of stress that would otherwise occur within the cooperating filler sheets 16-22. In addition, this intermediate corrugated area 36, in addition to its function of maintaining a space between adjacent filler sheets, receives and adjoins a film of water descending from the cooperating area of the upper cooling zone 28 downwardly. It serves to evenly distribute the water along the length of the top edge of the overlying cooling zone 28.

Referring again to FIG. 1, outer filler pack 12
The innermost lateral or peripheral edge portions of adjacent filler sheets 16, 18 are spaced away from air inlet louvers 24 to provide a honeycomb structure 42, as shown in more detail in FIGS. 2-5. It is integrally formed. Similarly, inner filling pack 1
The inner or peripheral edge portions of the four sheets 20, 22 are configured to provide a honeycomb structure 44 supporting and facing the honeycomb structure 42. Both of these honeycomb structures 42,44 extend along the entire vertical extent of each fill pack 12,14.

More particularly, with reference to FIGS. 2 and 3, the peripheral side edges of the filler sheet 16 include a first upright wall segment 46 and a first sloped wall segment 48 depending from the wall segment 46. The segment 4
6 and a second sloping wall segment 52 depending from said segment 50 in a direction opposite to the direction of inclination of wall segment 48. Conversely, the peripheral side edges of filler sheet 18 are shaped to provide upright offset wall segments 54,58 connected to oppositely sloped wall segments 56,60. Segments 46-52 continue in a repeating pattern along the length of the edge of filler sheet 16. Segments 54-60, on the other hand, are in a repeating cycle along the length of the sides of filler sheet 18.

The upright wall segments 46 of the filler sheet 16 engage the upright wall segments 54 of the filler sheet 18 when the filler pack 12 is assembled so that the wavy spacing areas 34, 36 abut each other. At the same time, the upright segments 5 of the filling sheet 18
8 abut the upright wall segments 50 of the filler sheet 16 . As a result, segments 46-60 combine to provide an overlapping staggered hexagonal pattern with a repeating shape in vertical cross-section, thus presenting a honeycomb-shaped appearance.

In a preferred form of the present invention, the sheet 1
Wall segments 46 and 58 at 6 and 18 are each formed to provide a horizontally extending indexing unit 62 having a generally conical shape.
This unit 62 includes upright wall segments 50,5
4 is received in a corresponding auxiliary recess forming a wall 64 which is integrally formed as part of 4. This unit 62 allows the packs 12, 14 to be assembled in order to increase the rigidity of the packs 12, 14, while simultaneously positioning the seat 16 in a desired position and orientation.
~22 adjacent areas are mutually locked with the recess-forming wall 64 when maintaining.

Wall segments 46-60 intersect within adjacent areas of cooling zone 28 (or undulating spacing areas 34 or 36) by sloped walls, such as points 66, 68 best shown in FIG. . Thus, the adjacent ends of the ridges 30, 32 of the adjacent cooling zone 28 are in direct contact with respective portions of the sloped wall portions 66, 68.

The honeycomb structures 42, 44 and particularly their wall segments 46-60 serve to guide the air flow through the filling assembly 10 in a generally horizontal direction. More specifically, this honeycomb structure 42, 44
exits the outer filling pack 12 along a horizontal path and with minimal pressure loss to the inner filling pack 1.
It guides the air entering from 4. Filling pack 1
2, 14 are often spaced apart by a small distance (e.g., 0.25 inch) to facilitate assembly, so that stresses in one of the filler packs 12, 14 are not transferred to the other pack.

In addition to guiding air horizontally from fill pack 12 to fill pack 14, honeycomb structure 42,
44 ensures that the flow rate of air exiting the fill pack 12 and entering the fill pack 14 is substantially uniform over the entire vertical area of the assembly 10, thereby providing a uniform supply of air to the cooling zone 28. Fully provided. Also upright wall segments 46,5
0, 54, 58 are adjacent filling sheets 16 to 22
are maintained horizontally a predetermined distance apart from each other, thus ensuring that the gap between adjacent portions of cooling zone 28 is maintained at some preselected dimension.

In this regard, the biased upright wall segment 4
The horizontal distance between 6, 50, 54, 58 is substantially equal to the horizontal distance between the peaks 38 and troughs 40 of the corrugated areas 34, 36, so that the honeycomb structures 42, 44 are adjacent to the cooling zone 28. It cooperates with the corrugated areas 34, 36 to maintain an air gap between the surfaces.

Finally, referring again to FIG. 1, sheet 16
22 are formed with integral spacers 70 interspersed through the cooling zone 28 . Also, a circular knockout 72 interrupting the serpentine pattern of the ridges 30 and grooves 32 prevents filler packs 12, 14 within the tower.
can be removed to receive a tubular support fixed to the opposite side wall of the water-cooled casing for mounting the water-cooled casing. Circular knockout 72 and spacer 70 are described in detail in the aforementioned U.S. Pat. No. 4,548,766.

Effects of the invention Honeycomb structures 42, 44 and wavy areas 34, 3
6, spacer 70, looper or chevron pattern member 24, and reduction member 26, the cooperative effect is such that the spacer 70, looper pattern member 24, and reduction member 26 have a suitable area around the entire periphery of the filler sheets 16, 22 within the practical dimensions of the filler sheets 16, 22. It is important to maintain spacing. The stress within the sheets 16, 22 is thus reduced and similar distortions of the filler sheets 16-22 are greatly prevented. As a result, air drawn into the assembly 10 is transferred to the filler pack 12,
14, resulting in uniform cooling of the flowing water and substantially reducing air-to-water channels.

The effects of each claim will be described below.

In an arrangement as claimed in claim 1, the film filling pack has a sheet gap location in which the ridges on each side of the sheet extend horizontally through the cooling zone of the sheet. extends outward,
This maintains a desired preselected horizontal gap between the cooling zones of adjacent sheets as the ridges on each side abut the ridges on the adjacent side of the adjacent sheet. Certain cooling zones are also bounded above and below by corresponding sheet spacing zones that extend substantially across the entire width of each sheet through the use of gap zones. These spacing zones are provided in the middle of the sheets to prevent excessive overlap of the sheets and to redistribute liquid within the cooling zone.

For this reason, when the intermediate region of the film-filled sheet is provided in a horizontally extending wavy space and a water dispersion region,
The corrugations act to relieve internally generated stresses, thereby preventing warping or deformation of that portion of the sheet and maintaining the desired inner sheet spacing between the cooling zones of adjacent sheets. The intermediate corrugated gap and water distribution structure further redistributes the descending water film to provide uniform loading of the bottom of each film pack.

The arrangement of claim 2 provides that the at least one intersheet area extends substantially across the entire width of each respective sheet, and includes a film-like structure extending on each side of the sheet to a number of cooling zones disposed below it. 2. The film pack of claim 1 operative to dispense water falling into the film.

This arrangement therefore provides a redistribution of fallout water by providing a spacing area across the width of the sheet.

Claim 3 specifies that a sheet spacing region extends along the upper peripheral region of the sheet.

For this purpose, hot water is received in the upper region of this sheet and then uniformly distributed by the sheet spacing region to each lower cooling region.

Claim 4 specifies that each peak of the spacing region has a linear length such that it touches the peak of an adjacent sheet at two spaced apart locations.

This provides an adequate redistribution of water moving from one cooling zone to an adjacent lower cooling zone and also increases the stiffness of the structure to prevent sheet warping.

Claims 5 and 6 clearly specify the specific angle between the peak parts.

Thereby, the same object as claimed in claim 1 can be achieved.

Claim 7 discloses a film filling assembly. The film filling assembly has a sheet spacing area that includes an undulating pattern providing a series of spaced apart elongated peaks. The peaks on each side of the sheet now extend horizontally outward through the cooling zone of the sheet. Thus, when the sheets are placed adjacent to each other, the peaks of each side contact the peaks of the adjacent side, maintaining the desired preselected horizontal spacing between the cooling zones of the adjacent sheets. It is possible.

For this reason, the combined effect of horizontally extending corrugated spaces, water dispersion structures, air directing structures extending along the adjacent edges of the sheets of both fill packs, etc., can occur at the periphery of the sheet or around each cooling zone. , the ability to maintain sheet spacing to maximize airflow through the tower. Additionally, as the peak of each sheet extends horizontally outward through the cooling zone, this assembly of sheets is constructed such that the corrugated opposing zones act to properly set the distance between the sheets within the cooling zone. is provided.

Claim 8 discloses that the structure provides a generally honeycomb shape in vertical section with upright wall segments of sheets in contact with upright wall segments of adjacent sheets.

This provides stiffness along the side edges of the film filler pack and has the effect of maintaining uniform air flow through the film filler pack.

Claim 9 specifies that a plurality of horizontally extending allocation units are provided.

These indexing units facilitate the construction of the film filling pack along the auxiliary profile recess-forming walls and ensure the maintenance of a uniform airflow therethrough. Such objective effects can also be achieved by the configuration of claim 12.

Claim 10 specifies that the lateral structures extend over substantially the entire vertical area of each filling pack sheet.

This has the advantage that airflow is provided in the cooling zone above and below each film fill pack.

Claim 11 specifies that the sheet spacing area extends across substantially the entire width of each sheet.

This results in uniform redistribution of water, as in claim 2.

[Brief explanation of the drawing]

FIG. 1 is a side elevational view of a filling assembly constructed in accordance with the principles of the present invention, the assembly comprising two laterally aligned multi-sheet filling packs, one sheet of each pack; FIG. 3 is a diagram illustrating a state in which a portion of the sheet is cut to show adjacent sheets.
FIG. 2 is an enlarged cutaway perspective view of the corner of the three sheets of the outer filling pack shown in FIG. 1, showing a vertically extending spacer structure in a honeycomb shape and a horizontally extending spacer structure in a wavy shape. FIG. FIG. 3 is an enlarged cutaway end view of the inner top corners of the three sheets of the outer filler assembly shown in FIG. 1, looking toward the outside of the filler pack through the honeycomb structure; Figure 4 is the third
FIG. 3 is an enlarged cutaway plan view of a corner of the filling pack shown in the figure; FIG. 5 is an enlarged horizontal cross-sectional view of a portion of the outer filling pack shown in FIG. 1, showing the honeycomb structure and chevron-shaped portion of the cooling zone. Explanation of symbols, 10: Film filling assembly, 1
2: Outer film filling pack, 14: Inner film filling pack, 16, 18, 20, 22: Sheet-like filling member, 24: Air inlet looper or air inlet chevron pattern member, 26: Ventilation reduction member, 2
8: Cooling zone, 30: Raised portion, 32: Groove, 34: Top sheet spacing water distribution zone, 36: Middle sheet spacing air direction zone, 38: Peak portion, 4
0: Valley, 42, 44: Honeycomb structure, 46: First upright wall segment, 48: First sloped wall segment, 50: Second upright wall segment, 52: Second sloped wall segment, 54: Offset wall segment, 56: wall segment, 58: offset wall segment, 60: wall segment, 62: allocation unit, 64: wall, 70: spacer, 72: knockout portion.

Claims (1)

Claims: 1. A film-filled pack 12, 14 for a water cooling tower, comprising a series of upright, substantially parallel sheets 16, 18, 20, 22, each providing two surfaces; are generally arranged in rows in facing relation to each other, with each of said sheets 16, 18, 20,
22 each side provides at least one cooling zone adapted to receive a descending film stream of water to be cooled on top, said at least one cooling zone 28 on each side of said sheet being connected to an adjacent cooling zone. horizontally adjacent said at least one cooling zone of the sheet and allowing airflow therefrom through said packs 12, 14 in substantially transverse relation to said descending flow of water to be cooled; The sheets 16, 18, 20, 22 are spaced apart from each other.
at least one sheet spacing area 34, 36, each extending generally horizontally, formed in an undulating pattern providing a series of spaced elongated peaks 38 on each side of said sheet. The peaks 38 are interconnected by a series of corresponding spaced troughs 40 such that one of each sheet 16, 18, 20, 22 A film-filled pack 12,1 in which a peak portion 38 on one surface forms a trough portion 40 on an opposing surface, or vice versa.
4, wherein the peak portion 38 on each side of the sheet corresponds to said at least one cooling zone 2 on each corresponding side of the sheet.
8, the longitudinal axis of said peak portion 38 of each face being inclined relative to the longitudinal axis of said peak portion 38 of the adjacent face of the adjacent sheet; said peak portions 38 of the surfaces are in contact with peak portions 38 of adjacent surfaces of adjacent sheets to maintain a desired preselected horizontal spacing between the cooling zones 28 of adjacent sheets; Kaga, each sheet 16,1
8, 20, 22 by corresponding sheet spacing areas 34, 36 extending substantially across the entire width of each sheet in the middle of said sheets to eliminate excess twisting and redistribute liquid. A film-filled pack for water cooling towers characterized by being bound at the top and bottom. 2 said at least one sheet spacing area 3
4, 36 extend substantially across the entire width of each respective sheet, thereby distributing the water falling in a film over each side of the sheet to a number of cooling zones 28 disposed below it. A film filling pack according to claim 1, which operates as follows. 3. Some of the sheet spacing zones 34, 36 have a corresponding upper peripheral area of the sheet for receiving the hot water to be cooled from the upper water distribution device and distributing the hot water to the cooling zone 28 located below, respectively. 3. A film-filled pack according to claim 2, which extends along the . 4. The film-filled pack of claim 1, wherein each of said peaks (38) has a linear length such that said peaks (38) of an adjacent sheet contact said peaks (38) at two spaced apart locations. 5. The film pack of claim 1, wherein the longitudinal axis of each of said peaks 38 is inclined with respect to the horizontal at an angle in the range of about 20 DEG to 30 DEG. 6. Each longitudinal axis of the peak portion 38 is
Claim 5 is inclined at an angle of about 30° from the horizontal.
The film-filled pack described in . 7 A film filling assembly 10 for a water cooling tower comprising an outer filler pack 12 having a series of upright, generally parallel opposed sheets of material 16, 18 arranged in rows; a series of upright, generally parallel opposing sheets of material 20, 22 arranged in rows substantially parallel to and horizontally offset from the rows of twelve sheets 16, 18; an inner filler pack 14, each sheet 16, 18, 20 of said outer filler pack 12 and said inner filler pack 14;
22 provides upright peripheral edges 42, 44, with the peripheral edge 44 of the inner fill pack 14 adjoining the peripheral edge 42 of the upright outer fill pack 12 in juxtaposed, facing relationship with the outer fill pack 12. , the sheet material 16, 18, 20, 22 of each of the outer filling pack 12 and the inner filling pack 14 includes on its upper surface at least one cooling zone 28 for receiving the film-like running water to be cooled. , each of the cooling zones 28 being disposed in horizontally spaced relationship from the cooling zone 28 of an adjacent sheet, the outer fill pack 12 being adjacent for thermal interaction with a film of flowing water. The inner fill pack 14 includes a wall 24 forming an air inlet for introducing air into the spaces between the cooling zones 28 of the sheet, and the inner fill pack 14 includes an air outlet for discharging air from the spaces between the cooling zones 28. including means 26 for forming a peripheral edge 44 of each of said outer fill pack 12 and inner fill pack 14 generally horizontally from a cooling zone 28 of said outer fill pack 12 toward an adjacent cooling zone 28 of each of said inner fill packs 14; including structures 42, 44 for guiding air along the passageway;
44 to maintain the desired spacing between the cooling zones of the outer fill pack 12 and inner fill pack 14;
Sheet contacting means 54, 5 for maintaining adjacent sheets a predetermined distance apart from each other in the horizontal direction;
6, 58, 60, each having at least one sheet spacing area 34, 36 extending generally horizontally and said sheets 16, 18, 2.
0,22 are formed in a wavy pattern providing a series of spaced elongated peaks 38 on both sides, the peaks 38 being interconnected by a series of spaced wavy valleys 40. has been
a film filling assembly 10 in which the peaks 38 on one side of each sheet form the valleys on the other side, or the valleys on one side form the peaks on the other side; 38 extend horizontally outwardly through at least one cooling zone 28 on each side of each corresponding sheet, such that the longitudinal axis of said peak 38 on each side is parallel to that of the adjacent side of the adjacent sheet. The peaks 38 are inclined relative to the longitudinal axis of the adjacent sheets such that said peaks 38 on each side maintain a desired preselected horizontal spacing between the cooling zones 28 of adjacent sheets. A film filling assembly for a water cooling tower, characterized in that the film filling assembly is in contact with a peak portion 38 of a surface. 8. The film of claim 7, wherein said structures 42, 44 provide a generally honeycomb-shaped structure in a vertical region with upright wall segments 54, 58 of each sheet abutting upright wall segments 56, 60 of adjacent sheets. Filling assembly. 9 comprising a plurality of horizontally extending allocation units 62 cooperating with said peripheral structure and a plurality of auxiliary shaped recesses each forming a wall 64 receiving a corresponding allocation unit 62; A film filling assembly according to claim 8. 10. The film filling assembly of claim 7, wherein said structures (42, 44) extend over substantially the entire vertical area of each respective filling pack sheet. 11 said at least one sheet spacing area 34, 36 extends across substantially the entire width of each respective sheet, thereby flowing in a film onto each side of the sheet to a cooling zone disposed below; 8. The film filling assembly of claim 7, wherein the film filling assembly is adapted to dispense water. 12 said structures 42, 44 provide a generally honeycomb shape in vertical cross section and extend over substantially the entire vertical surface of each respective fill pack sheet, and said structures of each sheet form an upright wall segment 56 of the adjacent sheet; , 60 in contact with the upright wall segments 54,5
12. The film filling assembly of claim 11, comprising: 8.