JP4092675B2 - Water tower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold water tower, and more particularly to a filler for a cold water tower.
[0002]
[Prior art]
FIG. 3 is a block diagram of a conventional cold water tower. In this figure, 1 is a casing, 2 is a blower, 3 is an exhaust port, 4 is an outside air intake port, 5 is a hot water tank, 6 is a water spray port, 9 is a heat exchange section, and hot water 7 is allowed to flow down from the water spray port 6. Is cooled by exchanging heat with the outside air 8. Further, the heat exchanging unit 9 includes a dry air heating unit 11 including a finned tube 10 and a filler 12, and the hot water 7 flowing down along the filler 12 is directly passed through the outside air 8 passing laterally therebetween. It cools by contact, the dry air 15 which passed the dry-type air heating part 11 is mixed with the high-humidity air 14 which generate | occur | produced, the humidity of air is reduced, and white smoke is prevented.
[0003]
Furthermore, in the chilled water tower improved from the chilled water tower having the above-described configuration, the dry air heating unit 11 composed of the finned tube 10 is replaced with the filler 12, and the filler just below the hot water tank is always switched between the wet region and the wet / dry type. In order to prevent white smoke from being divided into regions, the hot water flow in the wet / dry switching region is stopped and the air passing through this region can be dried (for example, Japanese Patent Application No. 9-305491). Issue, unpublished).
[0004]
[Problems to be solved by the invention]
In the above-described cold water tower, in order to increase the heat exchange rate with air, it is necessary to form a thin and uniform water film on the wall surface constituting the filler. However, when a plurality of holes are provided in the lower part of the hot water tank 5 and the hot water is simply caused to flow down from the holes, the water may not fall through the gaps between the fillers 12 without contacting the wall surface to form a water film. is there. Therefore, conventionally, a nozzle is mainly provided in the lower part of the hot water tank, and water is diffused in all directions by this nozzle. However, in this case, not only a large number of nozzles but also the nozzles need to be accurately positioned in the gaps of the filler. In addition, depending on the structure of the hot water tank, it is difficult to arrange a large nozzle in the gap between the fillers.
[0005]
Furthermore, in order to solve this problem, as schematically shown in FIG. 4, a horizontal dispersion pipe 16 is inserted into a gap between the fillers 12 located below the holes and nozzles, and the water spray is divided into two by this pipe. Therefore, a means for contacting the wall surface of the filler was used. However, even when such a horizontal dispersion pipe 16 is used, there is a problem that if the water is not sprayed accurately on the top of the pipe, a single flow that flows only in one left-right direction is likely to occur and positioning of the dispersion pipe is difficult.
[0006]
The present invention has been developed to solve the above-described problems. That is, the object of the present invention does not require a large number of holes or nozzles, does not need to be positioned accurately, and does not require an extra insert such as the horizontal dispersion tube 16, and does not require a large number of holes or nozzles. It is in providing the cold water tower which can form a uniform water film reliably on the wall surface which comprises.
[0007]
[Means for Solving the Problems]
According to the present invention, warm water is sprinkled from the plurality of sprinkling ports (6) provided in the lower part of the hot water tank (5) to the filler (12) immediately below, and the outside air is directly supplied to the warm water flowing down the surface of the filler. A chilled water tower that cools hot water by bringing it into contact with each other, and the filler comprises flat plate members (21) spaced apart from each other by a distance L, and the flat plate members have protrusions (22) for separating the distance L from each other. ,
Projecting at least a part of the cause is,
A first dish-like projection (22a) that is located directly below the water spout (6) and that divides the hot water flowing from the water spout into the horizontal direction along the surface of the filler;
A first water control protrusion (22b) having a vertical surface spaced from one end in the horizontal direction of the first dish-shaped protrusion;
The first dish-shaped protrusion has a vertical surface spaced from the other end in the horizontal direction, and is provided on a side opposite to the first water-controlling protrusion (22b) with respect to the first dish-shaped protrusion. Water protrusion (22b),
A second dish-shaped projection (22c) having a horizontal dispersion surface (23) spaced downward from the lower end of the first water control projection;
A third dish-shaped projection (22c) having a horizontal dispersion surface (23) spaced downward from the lower end of the second water control projection,
The first water control protrusion guides one side of the warm water divided by the first dish-shaped protrusion downward by the vertical surface to flow down to the horizontal dispersion surface of the second dish-shaped protrusion (22c). The second water control protrusion guides the other of the warm water divided by the first dish-shaped protrusion downward by the vertical surface and flows down to the horizontal dispersion surface of the third dish-shaped protrusion (22c). The horizontal dispersion surface of the second dish-shaped protrusion (22c) divides hot water from the vertical surface of the first water control protrusion in two in the horizontal direction, and the third dish-shaped protrusion (22c) The horizontal dispersion surface provides a chilled water tower characterized in that hot water from the vertical surface of the second water control protrusion is divided into two in the horizontal direction .
[0008]
According to the configuration of the present invention, the horizontal dispersion surface (23) located immediately below the water spout (6) is provided on at least a part of the projection (22) of the flat plate member (21) constituting the filler itself. In this horizontal dispersion surface, the water spray is horizontally dispersed along the surface of the filler, so that even if the position of the water spray port (6) deviates from the center of the horizontal dispersion surface (23), it flows down and hits the horizontal dispersion surface. The water is always divided into two and spreads sideways (horizontally) along the surface of the filler. Therefore, if the horizontal length of the horizontal dispersion surface is sufficiently long, a large number of holes and nozzles are not required, and it is not necessary to position them accurately, and an extra insert such as a dispersion pipe is not required. . Also, the hot water that spreads horizontally (horizontally) along the top surface of the horizontal dispersion surface along the surface of the filler adheres to the wall surface constituting the filler due to surface tension and flows in a U-shaped cross section. It adheres to the wall surface while wetting the surface with its end face, and a uniform water film can be reliably formed.
[0010]
With this configuration, the water hitting the horizontal dispersion surface (23) of the first dish-shaped protrusion (22a) adheres only to the filler wall surface to form a water film, and is dispersed evenly on the left and right. In addition, the first water control protrusion (22b) and the second water control protrusion (22b) functioning as a stopper, the second dish-shaped protrusion (22c) and the third dish-shaped protrusion (22c) having a horizontal dispersion surface (23 ) , As a result, the water flow divided by the first dish-shaped protrusion (22a) can be further divided into two parts by the second dish-shaped protrusion (22c) and the third dish-shaped protrusion (22c) , and water from one sprinkling hole can be obtained. It can be divided into four and dispersed in a wide range. Furthermore, even when the water spray hole and the center of the horizontal dispersion surface (23) of the first dish-shaped projection (22a) are displaced due to installation errors, the water flow is always divided into two equal parts, so that the dispersion can always be made uniform and the positional deviation can be prevented. The tolerance is widened. Therefore, the number of sprinkling holes or nozzles can be drastically reduced, making it unnecessary to produce and install an extra baffle plate.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.
[0012]
FIG. 1 is a diagram schematically showing a watering part of a cooling tower according to the present invention. As shown in this figure, the chilled water tower of the present invention sprays hot water 7 from a plurality of water spouts 6 provided in the lower part of the hot water tank 5 to the filler 12 immediately below it, and flows down the surface of the filler 12. The outside water 8 is brought into direct contact with 7 to cool the hot water. In addition, this cold water tower is a normal cooling tower which does not have the function even if it is a cooling tower with a white smoke prevention function as illustrated in Japanese Patent Application No. 9-305491 (unpublished). Also good.
[0013]
As shown in FIG. 1, in the chilled water tower of the present invention, the filler 12 is composed of a flat plate-like member 21 that is spaced from each other by a distance L. The flat plate member 21 is preferably made of a material that does not easily corrode (for example, a plastic material), and has a large number of mountain-shaped undulations on the surface, so that the hot water 7 flowing on the surface is easily dispersed in the horizontal direction. Accordingly, the flat plate-like member 21 has a flat plate shape as a whole, but each portion is formed by forming a flat plate into an uneven shape. This molding can be easily performed by vacuum molding, extrusion molding, or other molding means.
[0014]
The interval L between the fillers 12 is determined so that the hot water 7 flowing on the surface and the outside air 8 passing horizontally through the space exchange heat by direct contact. The narrower the distance L is, the higher the heat exchange rate is. However, on the other hand, the cost of the filler is increased and a large number of sprinkling ports 6 are required. Therefore, this interval L is preferably about 10 to 50 mm, for example.
[0015]
FIG. 2 is an arrow view taken along line AA in FIG. As shown in this figure, in the chilled water tower of the present invention, the flat member 21 is provided with a protrusion 22 for separating the interval L. The protrusion 22 is integrally formed as a part of the flat plate member 21 by vacuum forming or the like. Further, a horizontal dispersion surface 23 is provided on at least a part of the protrusion 22. The horizontal dispersion surface 23 is located immediately below the water spout 6 and has a function of horizontally dispersing the water spray (warm water 7) along the surface of the filler 12.
[0016]
In the example of FIG. 2, at least a part of the projection 22 of the flat plate-like member 21 positioned immediately below the hot water tank 5 includes a first dish-like projection 22a, a first water-controlling projection 22b , a second water-controlling projection 22b, and a second It consists of a plate-like projection 22c and a third plate-like projection 22c .
[0017]
The first dish-like protrusion 22a has a horizontal dispersion surface 23 located immediately below the water spout 6 and has a function of horizontally dividing the hot water 7 flowing down along the wall surface as shown in the figure. Moreover, the water control protrusion 22b has the vertical surface which spaced the space | interval D from the both ends of the 1st plate-shaped protrusion 22a, and is paired corresponding to the both ends. Further, the second dish-like protrusion 22c and the third dish-like protrusion 22c have a horizontal dispersion surface 23 spaced from the lower ends of the first water-controlling protrusion 22c and the second water-controlling protrusion 22c , and a pair of first and their respective provided corresponding to one system water protrusions 22c and the second system water protrusions 22c.
[0018]
In this embodiment, the filler 12 continues integrally with the lower part of the second dish-like protrusion 22c and the third dish-like protrusion 22c . The filler 12 in this portion is provided with a protrusion 22d having a circular cross section by vacuum forming or the like, and the interval L of the filler 12 is held by these protrusions.
[0019]
According to the configuration of the present invention described above, the horizontal dispersion surface 23 located immediately below the water spout 6 is provided on at least a part of the projection 22 of the flat plate member 21 constituting the filler itself. Since the water spray is horizontally dispersed along the surface of the filler, even if the position of the water spray port 6 deviates from the center of the horizontal dispersion surface 23, the water that flows down and hits the horizontal dispersion surface 23 is always divided into two parts. It spreads sideways (horizontal) along the surface. Therefore, if the horizontal length of the horizontal dispersion surface 23 is sufficiently large, a large number of holes and nozzles are not required, and it is not necessary to accurately position them, and an extra insert such as a dispersion pipe is required. do not do. Further, the hot water 7 spreading horizontally (horizontally) along the upper surface of the horizontal dispersion surface 23 along the surface of the filler 12 adheres to the wall surface constituting the filler 12 due to surface tension and becomes a U-shaped cross section. Therefore, it is possible to reliably form a uniform water film by adhering to the wall surface while wetting the surface with its end face.
[0020]
In addition, at least a part of the protrusion 22 is provided with a first dish-shaped protrusion 22a, a pair of first water control protrusion 22b and a second water control protrusion 22b, and a pair of second dish-shaped protrusion 22c and a third dish. By constituting with the projections 22c , the water hitting the horizontal dispersion surface 23 of the first dish-like projections 22a adheres only to the filler wall surface to form a water film and is dispersed evenly on the left and right. Also a first system water projection 22b and the second system water protrusion 22b that functions as a stopper, that there are a second dish-shaped protrusions 22c and the third dish-shaped protrusion 22c having a horizontal dispersion plane 23, a first dish-shaped projections The water flow divided into two by 22a can be further divided into two by the second dish-like protrusion 22c and the third dish-like protrusion 22c , and the water from one sprinkling hole can be divided into four and dispersed in a wide range. Further, even when the water spray hole and the center of the horizontal dispersion surface 23 of the first dish-like projection 22a are displaced due to an installation error, the water flow is always divided into two equal parts, so that the dispersion can always be made uniform and the tolerance for misalignment is wide. Become. Therefore, the number of sprinkling holes or nozzles can be drastically reduced, making it unnecessary to produce and install an extra baffle plate.
[0021]
【Example】
As a result of actually testing the protrusion 22 having the above-described configuration, almost no water falls directly between the walls of the filler. Further, the water flow blown off by the first dish (first dish-like protrusion 22a) is stopped by a stopper ( first water-controlling protrusion 22b , second water-controlling protrusion 22b ) and a second dish (second dish-like protrusion 22c , third dish). It was divided into four parts by the protrusions 22c ), and it was confirmed that the water film was dispersed in a wide range while forming a water film, and the performance of the cold water tower was greatly improved. In addition, it was confirmed that there was no problem even if the center shifted, and that the water hit was always divided into two minutes.
[0022]
Of course, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
[0023]
【The invention's effect】
As mentioned above, the chilled water tower of the present invention does not require a large number of holes or nozzles, does not need to be positioned accurately, and does not require an extra insert such as a horizontal dispersion tube. It has excellent effects such as the ability to reliably form a uniform water film on the wall surface constituting the filler.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a watering part of a cooling tower according to the present invention.
FIG. 2 is a view taken along the line AA in FIG.
FIG. 3 is a configuration diagram of a conventional cold water tower.
FIG. 4 is a diagram showing an example of dispersion using a horizontal dispersion pipe.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 2 Blower 3 Exhaust port 4 Outside air inlet 5 Warm water tank 6 Sprinkling port 7 Warm water 8 Outside air 9 Heat exchange part 10 Finned tube 11 Dry air heating part 12 Filler 14 High humidity air 15 Dry air 16 Horizontal dispersion pipe 21 Flat plate Member 22 protrusion 22a first dish-like protrusion 22b first water control protrusion , second water control protrusion 22c second dish-like protrusion , third dish-like protrusion 22d circular protrusion 23 horizontal dispersion surface

Claims (1)

Warm water is sprayed from a plurality of water spouts (6) provided in the lower part of the hot water tank (5) to the filler (12) immediately below it, and the outside air is brought into direct contact with the warm water flowing down the surface of the filler to cool the hot water. A cooling water tower comprising a flat plate member (21) spaced from each other by a gap L, the flat plate member having a protrusion (22) for separating the gap L,
Projecting at least a part of the cause is,
A first dish-like projection (22a) that is located directly below the water spout (6) and that divides the hot water flowing from the water spout into the horizontal direction along the surface of the filler;
A first water control protrusion (22b) having a vertical surface spaced from one end in the horizontal direction of the first dish-shaped protrusion;
The first dish-shaped protrusion has a vertical surface spaced from the other end in the horizontal direction, and is provided on a side opposite to the first water-controlling protrusion (22b) with respect to the first dish-shaped protrusion. Water protrusion (22b),
A second dish-shaped projection (22c) having a horizontal dispersion surface (23) spaced downward from the lower end of the first water control projection;
A third dish-shaped projection (22c) having a horizontal dispersion surface (23) spaced downward from the lower end of the second water control projection,
The first water control protrusion guides one side of the warm water divided by the first dish-shaped protrusion downward by the vertical surface to flow down to the horizontal dispersion surface of the second dish-shaped protrusion (22c). The second water control protrusion guides the other of the warm water divided by the first dish-shaped protrusion downward by the vertical surface and flows down to the horizontal dispersion surface of the third dish-shaped protrusion (22c). The horizontal dispersion surface of the second dish-shaped protrusion (22c) divides hot water from the vertical surface of the first water control protrusion in two in the horizontal direction, and the third dish-shaped protrusion (22c) The horizontal dispersion surface divides hot water from the vertical surface of the second water control protrusion into two in the horizontal direction, and the cold water tower is characterized in that:

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