JP2583549Y2 - cooling tower - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling tower, and more particularly, to a structure of a filler in a semi-enclosed cooling tower for indirectly cooling process water circulating in a refrigerator or the like.

[0002]

2. Description of the Related Art Closed cooling towers, unlike open-type cooling towers, do not contaminate circulating water with outside air and have better heat exchange efficiency than air-cooled heat exchangers. It is often used for refrigerators in important facilities.

In such a closed cooling tower, a large number of filler sheets are stacked at a predetermined interval, and one of each filler sheet is stacked.
A semi-hermetic process water passage through which the process water flows is closed by closing the periphery with an umbrella plate or a joining seal at every sheet, and cooling water sprayed from above on both sides of the process water passage into cooling air. A cooling water passage to be contacted is formed, cooling water flowing down the cooling water passage is brought into direct contact with the outside air to be cooled, and the cooling water and the process water are heat-exchanged through a filler sheet to cool the process water. The above-mentioned semi-closed cooling tower is known (Japanese Patent Laid-Open No. 51-100370).
JP, JP-A-3-177790, JP-A-3-3-1
No. 75290).

In such a conventional semi-enclosed cooling tower, the passage on the process water side melts the periphery of the two filler sheets in order to separate the cooling water flowing down in the filler from the process water. The lower end is inclined in a funnel shape so that the water comes close to the center, so that only the process water is received.

[0005]

However, in the funnel-shaped water receiver as described above, it is necessary to work the water receiver at a pitch of 13 to 20 mm of the laminated filler. However, there is a drawback that the cooling water enters the process water from the fitting portion.

Accordingly, an object of the present invention is to provide a cooling tower capable of reliably separating process water and cooling water at a lower end portion of a filler with a simple structure.

[0007]

In order to achieve the above-mentioned object, the cooling tower of the present invention uses cooling water sprayed from above between each of a plurality of filler sheets laminated at a predetermined interval. In a semi-hermetic cooling tower using a filler having alternately a cooling water passage that directly contacts cooling air and a semi-sealed process water passage in which process water flows down, the cooling water passage and the process water passage At the lower end, a water receiving plate for collecting cooling water or process water in one direction of the filler is provided, and the water receiving plate is inclined in a direction opposite to the cooling water passage and the process water passage. It is characterized by.

[0008]

According to the above configuration, the cooling water flowing down the cooling water passage and the process water flowing down the process water passage are guided by the water receiving plate provided at the lower end portion of the filler, and are guided to the side of the filler. Collected in. And, since the water receiving plate is inclined in opposite directions in the cooling water passage and the process water passage,
The cooling water and the process water are collected at the lateral lower ends of the filler in opposite directions. Therefore, by providing the cooling water receiving portion on one lower side of the filler and the process water receiving portion on the other side, the cooling water and the process water can be reliably separated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of a semi-enclosed cooling tower, FIG. 2 is a front view of a filler, and FIG. 3 is a sectional view taken along line III-III of FIG.

In the semi-closed cooling tower 1, cooling water is sprayed on the filler 2 from a cooling water spraying device 3 provided above the filler 2, and the cooling tower 1 is provided with a fan 5 provided at an upper central exhaust port 4. Air is taken in from the air inlet 6, the air is brought into direct contact with the cooling water to cool the cooling water, and the cooled cooling water is heat-exchanged with the process water flowing through the semi-sealed process water passage. It is configured to cool process water.

The above-mentioned filler 2 is formed by laminating a plurality of filler sheets 22 having projections 21 for maintaining a predetermined interval at a predetermined interval, and bonding and sealing the upper portion and both sides of every other filler sheet 22. The cooling water passage 23 for directly contacting the cooling water sprayed from above with the cooling air, and the process water passage 24 in a semi-sealed state in which the process water flows down are alternately formed.

At the lower end of both passages 23 and 24, each passage 2
Filler 2 with cooling water or process water flowing down in 3, 24
The water receiving plates 25a and 25b which collect water in one side direction are provided. The water receiving plates 25a and 25b are attached to the filler sheets 22 on both sides in a water-tight manner by means of fusion, adhesion, fitting, or the like. Are provided in the opposite direction, that is, the water receiving plates 25a and 25b are inclined in opposite directions.

Therefore, the cooling water flowing through the cooling water passage 23 is supplied from the cooling water outlet 26a located at the lower left portion of the filler 2 in FIG.
And the process water flowing through the process water passage 24
A water receiving plate 25b allows a process water outlet 26b located at a lower right portion of the filler 2 in FIG.
Leaked to

That is, the cooling water sprayed from the cooling water spraying device 3 and flowing down the cooling water passage 23 of the filler 2 is collected by the water receiving plate 25a and flows out of the cooling water outlet 26a to the cooling water tank 27a. The cooling water is circulated to the cooling water spraying device 3 by the cooling water circulation pump 7.

One process water is supplied to a process water tank 27b.
From the process water circulation pump 8 to the device to be cooled 9 such as a refrigerator, and the process water that has cooled and heated the device 9 is passed through the header pipe 10 into the upper portion of the process water passage 24. It is sprayed from the spray pipe 11 to the process water passage 24. The process water flowing down in the process water passage 24 is collected by a water receiving plate 25b, and is discharged from a cooling water outlet 26b in a direction opposite to the cooling water to a process water tank 27b.
And circulates through the above path.

The cooling water and the process water are supplied to the supply pipes 12a and 12b and the ball taps 13a and 13b, respectively.
Replenished via.

As described above, the cooling water and the process water are caused to flow out from the lower portion on the opposite side of the filler 2 by the respective water receiving plates 25a and 25b, so that the cooling water and the process water flowing out of the filler 2 can be easily formed. The water tank 27 can be separated into the cooling water tank 27a and the process water tank 27b only by providing the partition 27c in the water tank 27 as described above.

Further, the two water receiving plates 25a and 25b may be integrally joined when the filler sheet 22 is laminated and the filler 2 is produced, and the filler is produced by a simpler procedure than before. be able to.

[0019]

As described above, in the cooling tower of the present invention, the cooling water and the process water can be easily and reliably separated by the respective water receiving plates provided in the cooling water passage and the process water passage. At the same time, the structure of the filler is simplified and the production is facilitated.

[Brief description of the drawings]

FIG. 1 is a system diagram of a semi-enclosed cooling tower showing one embodiment of the present invention.

FIG. 2 is a front view of a filler.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Semi-closed cooling tower, 2 ... Filler, 3 ... Cooling water spraying device, 4 ... Exhaust port, 6 ... Air intake, 11 ... Process water spraying pipe, 22 ... Filler sheet, 23 ... Cooling water passage, 24 ...
Process water passages, 25a, 25b ... water receiving plate, 26a ... cooling water outlet, 26b ... process water outlet, 27a ... cooling water tank, 27b ... process water tank

Claims (1)

(57) [Scope of request for utility model registration] A cooling water passage for directly contacting cooling water sprayed from above with cooling air between each of a plurality of filler sheets laminated at a predetermined interval, and a semi-sealed space for process water to flow down. In a semi-enclosed cooling tower using a packing material alternately having a process water passage in a state, at a lower end portion of the cooling water passage and the process water passage, collecting cooling water or process water in one direction of the packing material. A cooling tower, wherein the water receiving plates are respectively provided and the water receiving plates are inclined in directions opposite to each other in the cooling water passage and the process water passage.