JP3655080B2 - cooling tower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling tower in which a watering pipe for watering is provided with a watering box protruding upward from the bottom of the watering box.
[0002]
[Prior art]
FIG. 5 is a schematic diagram of a general open cooling tower. As shown in FIG. 5, the open type cooling tower A includes a filler B1 (B2), and a sprinkler tank C1 (C2) and a sprinkler box D1 (D2) in the upper part thereof. Flowing water from the water spray box D1 (D2) via the water tank C1 (C2) is accumulated in the lower water tank E, sent to the condenser G by the circulation pump F, and further through the water supply pipe H1 (H2) to the water spray box C1 ( C2) is supplied with water and circulates. The front end of the water supply pipe H1 (H2) penetrates the bottom of the watering box D1 (D2) upward, protrudes, and opens upward. The outside air flows in the direction of the white arrow by the fan I.
[0003]
Hereinafter, the watering box at the position of the watering box D1 shown in FIG. 5 will be described as an example.
FIG. 6 is a schematic cross-sectional view showing a conventional example of a watering box. In FIG. 6, the watering box D1 is made of FRP, and is installed on the upper part of the watering tank C1. The watering box D1 includes a bottom portion 1 and a lid body 2, and includes a side wall 12 of the bottom portion 1, a side wall 21 of the lid body 2, and a lid body 2. Both side walls 22 are rectangular tube-shaped, and the ceiling portion 23 of the lid body 2 is plate-shaped.
[0004]
A plurality of sprinkling holes 11 are formed through the bottom 1 and the tip of the water supply pipe H1 penetrates the bottom 1 upward, protrudes and opens upward. The water ejected from the water supply pipe H1 flows down from the water spray tank C1 to the filler B1 (FIG. 5) through the water spray tank C1 through a plurality of water spray holes 11 while having a certain level of water level.
[0005]
On the ceiling 23 of the sprinkling box D1, which is above the opening of the water supply pipe H1, a squirting water restraining device 4 comprising a squirting water restraining plate 41, a handle 42 and a guide part 43 is provided. The squirt water suppression plate 41 is movable up and down via a guide portion 43 by manually operating a handle 42 provided outside. By setting the squirting water suppression plate 41 at an appropriate position, the impact force of the squirt water from the water supply pipe H1 is absorbed so that the impact force is not directly applied to the inner surface of the water spray box D1.
[0006]
In order to prevent the sprinkling box D1 from being damaged by the rise of the internal air pressure of the sprinkling box D1 due to the water jetted from the water supply pipe H1, it is necessary to deaerate the internal air to the outside. The deaeration port 3 is penetrated. The diameter of the deaeration port 3 penetrating is about 5 to 15 mm, and is set to an appropriate value.
[0007]
[Problems to be solved by the invention]
However, in the watering box in the conventional cooling tower, the size of the deaeration port is limited in consideration of the blowout of air containing water to the outside and the intrusion of rainwater from the outside. Because of the increase in internal air pressure caused by water and this spout water, impact force is applied to the rectangular tubular side walls and flat ceiling parts that make up the water spray box and their intersections, and the water spray box is likely to be damaged. There is a problem that it is necessary to provide a squirting water suppression device composed of a squirting water suppression plate, a handle, and a guide part, which is expensive.
[0008]
[Means for Solving the Problems]
The present invention has been made in view of the above problems, and the cooling tower according to the first aspect of the present invention includes a bottom portion provided with a plurality of holes penetrating and a water supply pipe projecting and opening upward, and a substantially cylindrical shape. And a lid formed integrally with a side wall and a substantially hollow bulging ceiling portion, and communicates the inner side along the side wall from the ceiling portion in the downward direction and faces the outside in the side wall. A watering box formed by forming a deaeration channel that opens downward from the horizontal is provided.
[0009]
Next, in the invention of claim 2, the deaeration path in claim 1 is formed integrally with the lid of the watering box, and the partition member is in contact with the vicinity of the inner surface of the base portion of the bulge portion. It is formed by.
[0010]
Next, a third aspect of the invention is characterized in that the deaeration path in the first aspect comprises a tube.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an external perspective view showing a first embodiment of the watering box of the cooling tower of the present invention, FIG. 2 is a schematic sectional view taken along the line XX of FIG. 1, and FIG. It is a -Y line cross-sectional schematic diagram. FIG. 4 is a schematic sectional view showing a second embodiment of the watering box of the cooling tower of the present invention.
[0012]
One Example of the watering box of the cooling tower of this invention is described in detail using FIGS. 1-3. The watering box D1a is provided in the upper part of the watering tank C1. The bottom part 1a of the watering box D1a is a eye plate provided with a plurality of through holes 11a for watering, and the water supply pipe H1 rises from the lower side of the bottom part 1a through the bottom part 1a and opens upward.
[0013]
The lid 2a combined with the bottom part 1a of the water spray box D1a is integrally formed with a side wall 21a, a ceiling part 23a, and a raised part 24a that is formed in a descending direction from the ceiling part 23a along the side wall 21a and has a lower end opened. It is. The side wall 21a has a deformed cylindrical shape including the raised portion 24a, the ceiling portion 23a has a hollow bulging shape, and the intersection area between the side wall 21a and the ceiling portion 23a is also rounded.
[0014]
Specifically, the hollow bulge shape of the ceiling portion 23a is an upward bulge such as a deformed hollow spherical shape or a deformed hollow parabolic shape including the raised portion 24a.
[0015]
In order to make the raised portion 24a formed in the descending direction along the side wall 21a from the ceiling portion 23a and having the lower end opened as the deaeration path 3a, the raised portion 24a is formed from the lid body 2a in a substantially nose-like shape. It is necessary to partition as a passage. For this purpose, the partition member 5 is brought into contact with and fixed to the vicinity of the inner surfaces of the base portions 51 and 52 of the raised portion 24a. Although not shown in FIG. 2, as shown in FIG. 3, the partition member 5 is provided over substantially the entire length of the raised portion 24a. The partition material 5 is made of an FRP strip or the like processed into an appropriate shape, and the side of the strip or the like is placed near the inner surfaces of the bases 51 and 52 of the raised portion 24a of the lid 2a by an adhesive or the like. Contact and stick. And the opening part 32a is ensured in the ceiling part 23a, and the opening part 33a which goes outside is ensured in the lower end of the protruding part 24a. As a result, the opening 32a, the communication path 31a defined by the raised portion 24a and the partition member 5, and the opening 33a
Is formed.
[0016]
Next, another embodiment of the watering box of the cooling tower of the present invention will be described with reference to FIG. Since the position where the watering box is arranged, the eye plate structure at the bottom of the watering box and the water supply pipe penetrating through the bottom and opening upward are the same as in the case of FIG. Omitted.
[0017]
In FIG. 4, the lid 2b combined with the bottom 1b of the water spray box D1b is such that the side wall 21b and the ceiling 23b are integrally formed symmetrically, the side wall 21b is cylindrical, and the ceiling 23b is hollow. It has an upward bulging shape such as a spherical or hollow paraboloid shape, and is rounded at the intersection area between the side wall 21b and the ceiling portion 3b. A tube (tube) 31b is attached to the inner surface side along the side wall 21b from the ceiling portion 23b in a descending direction, and an opening 32b and an opening 33b are secured in the tube 31b, and the tube 31b has a bottom 1b. At a slightly higher position, the opening portion 33b penetrating through the side wall 21b and facing downward from the horizontal is formed.
[0018]
The tube 31b is often made of synthetic resin, but is not limited to this. The tube 31b is preferably as thin as possible so as not to obstruct the flow of the internal air and water of the water spray box D1b, but the specific diameter of the tube 31b is preferably set in the range of about 5 to 15 mm. However, it is not limited to this aperture. The tube 31b may be fixed with an adhesive or the like (not shown), and a simple water leakage prevention measure needs to be taken in the gap between the through holes provided in the side wall 21b. As a result, a deaeration path 3b including the opening 32b, the tube 31b serving as a communication path, and the opening 33b is formed.
[0019]
Hereinafter, the symbols indicating the parts of the first example are shown as they are, and the symbols indicating the parts of the second example are shown together with ().
In the water spray box D1a of the first embodiment described above and also in the water spray box (D1b) of the second embodiment described above, the water sprayed from the tip of the water supply pipe H1 toward the inside of the water spray box D1a (D1b). , The air compressed by the squirt water and the squirt water is the cylindrical surface of the side wall 21a (21b) of the lid 2a (2b), the upward bulge of the ceiling part 23a (23b), and the side wall 21a ( 21b) and the rounded surface of the intersection area between the ceiling portion 23a (23b), etc., the dispersion, circulation, and impact force are alleviated. The dispersed and circulated air flows into the opening 32a (32b), and is smoothly discharged to the outside through the degassing path 3a (3b) from the opening 33a (33b).
[0020]
Since the opening 33a (33b) is opened downward from the horizontal, there is no fear of rainwater intrusion, and the deaeration path 3a (3b) even if noise is generated in the watering box D1a (D1b). Since sound is emitted downward through the sound, it is significantly insulated.
[0021]
【The invention's effect】
As described above, in the present invention, a plurality of holes are provided to penetrate and a bottom portion from which a water supply pipe projects and opens upward, a substantially cylindrical side wall, and a substantially hollow bulging ceiling portion are integrally formed. A water spray box formed by combining a lid and a deaeration path that communicates the interior side along the side wall from the ceiling portion in a descending direction and opens downward from the horizontal toward the outside at the side wall. Since the cooling tower can be provided, the spout water accompanying the spout water from the rising water supply pipe penetrating and protruding through the bottom of the sprinkler box and the compressed air generated by the spout water is the sprinkler box. Even toward the inner surface, the cylindrical side wall, the upwardly bulging ceiling part and the rounded side wall and the intersection area of the ceiling part are dispersed and circulated, and the impact force is alleviated and naturally Along the inside of the watering box The sprinkling box will not be damaged because it is smoothly discharged to the outside from the downward opening through the deaeration path formed in this way. Since there is no need for a device, there is an effect that an inexpensive cooling tower using an inexpensive sprinkling box can be obtained, and furthermore, since the deaeration channel opens downward from the horizontal, the water supply should blow out to the outside. However, it does not scatter outside the cooling tower, and at the same time, rainwater does not enter from the deaeration channel, and is smoothly insulated through the deaeration channel, so that the sound is significantly insulated.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a first embodiment of a water spray box of a cooling tower of the present invention.
FIG. 2 is a schematic cross-sectional view taken along the line XX of FIG.
3 is a schematic cross-sectional view taken along the line YY of FIG.
FIG. 4 is a schematic sectional view showing a second embodiment of the watering box of the cooling tower of the present invention.
FIG. 5 is a schematic diagram of a general open cooling tower.
FIG. 6 is a schematic cross-sectional view showing a conventional example of a watering box.
[Explanation of symbols]
A Cooling tower D1a, D1b Sprinkling box H1 Water supply pipe 1a, 1b Bottom part 11a, 11b Through hole 2a, 2b Lid 21a, 21b Side wall 23a, 23b Ceiling part 3a, 3b Deaeration path 31a Communication path 31b Tubes 32a, 33a, 32b 33b Opening 5 Partition material 51, 52 Base

Claims (3)

A combination of a bottom portion provided with a plurality of holes penetrating and having a water supply pipe projecting upward and opening, and a lid formed integrally with a substantially cylindrical side wall and a substantially hollow bulging ceiling portion And a watering box provided with a degassing passage that communicates in the downward direction from the ceiling portion along the side wall and opens downward from the horizontal toward the outside on the side wall. Tower. The deaeration path is formed integrally with the lid, and is formed by a raised portion having a substantially semi-cylindrical cross section and a partition material in contact with the vicinity of the inner surface of the base of the raised portion. Item 2. The cooling tower according to Item 1. The cooling tower according to claim 1, wherein the deaeration path comprises a pipe.

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