JPH0989493A - Heat-exchange tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent mixture of rainwater, etc., with a refrigerant or a heating medium and leakage of a refrigerant or a heating medium during operation to the outside of a circulation system due to flying. SOLUTION: A plurality of strip-form eliminators 13 each having a proper width are arranged in such a manner that the eliminators are situated in a multistage separately from each other from the upper part of a filler 4 toward the lower part of a space part 3 and horizontally displaced at a position, in order, and in a stair-form state so that rainwater entering a tower and received by the eliminates 13 drips on an adjacent eliminate 13 in a lower stage. A rainwater receiving member 16 is arranged at the lower part of the eliminator, the edge part of the rainwater receiving member 16 is connected to a water gathering gutter 14, and rainwater flowing along the eliminators 13 and gathered by the water gathering gutter 14 is discharged through a discharge pipe 15 to the outside of the tower.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is designed to prevent rainwater and snow blown from an exhaust port from entering a refrigerant or a heat medium, and prevent the refrigerant or the heat medium from leaking out of the tower. The present invention relates to a cross-flow heat exchange tower such as a tower and a heating tower.

[0002]

2. Description of the Related Art Conventionally, as a structure for preventing rainwater and the like from mixing in this kind of heat exchange tower, an elbow duct is mounted on the exhaust port to make it difficult for rainwater or the like to enter the exhaust port, or on a lower water tank just below the exhaust port. There is one in which a rainwater tray for collecting rainwater and the like is attached to prevent the rainwater and the like that have entered the exhaust port from mixing with a refrigerant or a heat medium.

[0003]

In the former one of those described in the prior art, rainwater or the like may be blown into the exhaust port from the opening of the elbow duct depending on the wind direction and the strength of wind and rain, and the mixture with the refrigerant or the heat medium. Could not be prevented. Therefore, when an antifreeze liquid or other chemical liquid is used as the refrigerant or the heat medium, the concentration thereof decreases due to the mixing of rainwater,
There is a problem in that the desired freezing performance cannot be obtained, such as freezing of the refrigerant or heat medium.

In the latter, although the refrigerant or heat medium can be prevented from mixing with rainwater or the like, a part of the refrigerant or heat medium scattered from the filler into the space above the rainwater tray during operation is also stored in the rainwater tray. Since it is collected and discharged to the outside of the tower together with rainwater, there is a problem that these wastes occur.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to mix rainwater and the like with a refrigerant or a heat medium, and to scatter during operation. To provide a cross-flow heat exchange tower that is economical and has excellent maintainability by preventing the leakage of refrigerant or heat medium to the outside of the circulation system and further providing a stepped eliminator to reduce the rainwater tray. It is in.

[0006]

In order to solve the above-mentioned problems, the present invention performs heat exchange by sprinkling a refrigerant or a heat medium on a filler arranged adjacent to an internal space communicating with an exhaust port to perform heat exchange. In a heat exchange tower that collects the exchanged refrigerant or heat medium in a lower water tank provided below the space, a plurality of eliminators having an appropriate width are isolated from the upper part of the packing material toward the space below. Edges of the rainwater receiving members arranged in the lower part of the eliminator are arranged in a stepwise manner so that the rainwater received by the eliminator is dropped in stages in the horizontal direction so that the rainwater received by the eliminator is dropped on the adjacent lower eliminator. Is characterized by being connected to a water collecting gutter provided below the space.

The eliminator may be formed of an elongated strip-shaped plate material, and the eliminator may be arranged so as to be inclined so that the edge on the filler side is higher than the edge on the space side.
It is more preferable to provide a ridge on the bottom surface of the eliminator for dropping the attached refrigerant or heat medium.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing the configuration of the heat exchange tower of this example, FIG. 2 is a diagram showing the arrangement state of eliminators,
FIG. 3 is a diagram showing an arrangement state of eliminators provided with ridges on the bottom surface, FIG. 4 is a cross-sectional view of a main part showing a connection state of a rainwater receiving member and a water collecting trough, and FIG. 5 is an arrangement of another example of the rainwater receiving member. It is a figure.

In FIG. 1, a heat exchange tower 1 of this example has a cross-flow (open) type structure, and a large number of sheets are provided on both sides of a space portion 3 having an appropriate width provided in the center of the inside of a main body 2. A filler 4 made of a stack of filler plates is arranged, and a water spray for storing and spraying circulating water, which is a refrigerant or a heat medium containing an antifreeze liquid or other chemical liquid, is provided just above the filler 4 above the tower. A portion 5 is provided, a lower water tank 6 for collecting the circulating water flowing down is provided below the filling material 4 and the space portion 3, and an air intake port 7 is further provided on the side wall portion of the main body 2 adjacent to the filling material 4. The exhaust port 9 is provided right above the space 3 together with the fan 8, and the air taken in from the air intake 7 by the fan 8 and the surface of the filling material 4 sprinkled by the water sprinkling unit 5 are provided. Directly contact the circulating water flowing down to exchange heat,
The heat exchanged circulating water is collected in the lower water tank 6 and is circulated and supplied to the load unit 11 such as a condenser via the pump 10.

At the upper corner of the space 4 of the filling material 4,
In a state in which the shield plate 12 bent in a V shape is joined to one surface of the upper surface portion of the filler 4 which is not in communication with the water sprinkling portion 5 to cover the portion and the other surface is inclined downward. It is installed so as to project into the space 3 and prevents the circulating water sprinkled from the upper corners of the filling material 4 from splashing into the space 3.

Below the shielding plate 12, a plurality of eliminators 13 made of elongated strip-shaped plates having an appropriate width and a length horizontally extending along the side wall of the filling material 4 are provided below the shielding plate 12. Are separated from each other in a multi-step manner, and are arranged in a stepwise manner by sequentially shifting the position in the horizontal direction so that the distance to the filling material 4 becomes wider toward the lower position.

As shown in FIG. 2, the eliminator 13 is inclined in the same direction as the shield plate 12, that is, the edge on the filler 4 side is higher than the edge on the space 3 side. At the same time, so that the projected images of the members 13 projected on the liquid surface of the lower water tank 6 are continuous and integrated, they are supported by providing portions where the vertical positions overlap each other in adjacent upper and lower stages. Rainwater that has entered the space 3 is received by the surface of the eliminator, travels along the inclined surface, and the lower eliminator 1
While the water is sequentially dropped onto the water 3, the circulating water scattered from the filler 4 to the space 3 side is reflected on the lower water tank 6 on the back surface.

In order to prevent scattering of circulating water more efficiently, as shown in FIG. 3, the ridges 1 are formed on the bottom surface of the eliminator 13.
3a is provided, and the circulating water that adheres to the surface and flows down is projected 13
You may make it drip on the lower water tank 6 along a. The inclination angles of the eliminators 13 do not necessarily have to be the same, and the inclination angles can be freely changed.

Below the space 3, as shown in FIG.
A water collecting trough 14 that collects rainwater and the like that has dropped along the eliminator 13 is provided with a rainwater receiving member 16 below the eliminator 13.
Of the bottom surface 14a
The peripheral wall raised from above is brought into contact with the back surface of the rainwater receiving member 16 and arranged on the liquid surface of the lower water tank 6. Water collection gutter 14
Is connected to a discharge pipe 15 communicating with the outside of the tower for discharging collected rainwater and the like, and the bottom surface 14a is formed as a flat corridor surface for maintenance and inspection inside the tower.

Although the eliminator 13 is horizontally provided along the side wall of the filler 4, it may be provided so as to be inclined with respect to the horizontal plane, and the rainwater receiving member 16 may be provided so as to be inclined. In that case, the water collecting trough 14 may be arranged only on the lower edge side of the rainwater receiving member 16 as shown in FIG.

According to the heat exchange tower 1 having such a structure,
Air that has undergone heat exchange through the gaps between the eliminators 13 can flow into the space 3 and be discharged from the exhaust port 8 to the outside of the tower, so that heat can be exchanged between the circulating water and the intake air as described above.

Rainwater or the like that has entered the space 3 through the exhaust port 9 when the fan 8 is operated or stopped is collected on the surface of the eliminator 13 and flows down the inclined surface to drop.
The dripping rainwater and the like are sequentially collected by the eliminator 13 in the next stage, so that they do not fall into the lower water tank 6, are collected in the water collecting trough 14 through the rainwater receiving member 16, and are discharged from the tower through the discharge pipe 15. , Do not mix in circulating water.

Further, during the operation of the fan, the circulating water scattered to the space portion 3 side hits the back surface of the eliminator 13 and is reflected to the filling material 4 side, or is collected on the surface, so that the space portion 3
Since it does not mix with rainwater and the like that have infiltrated inside and flow into the water collecting trough 14, and the circulating water reflected or collected by the back surface of the eliminator 13 drips onto the lower water tank 6,
Leakage outside the circulation system due to scattering is prevented.

The eliminator may be of an appropriate shape suitable for collecting rainwater and reflecting and collecting scattered circulating water. The number of arrangements and inclination angle of the eliminator are the dimensions of the heat exchange tower. It can be appropriately selected according to the capacity and the capacity. The present invention can also be applied to a heat exchange column having a cross-flow (closed) type structure in which a fluid to be cooled or a fluid to be heated does not come into direct contact with the atmosphere.

[0020]

As described above, according to the heat exchange tower of the present invention, rainwater and the like that have entered the tower are collected on the surface of the eliminator and collected through the rainwater receiving member without being dropped into the lower water tank. Since it is collected in a water gutter and discharged to the outside of the tower, it does not mix with the refrigerant or heat medium. Therefore, even when antifreeze liquid or other chemical liquid is used as circulating water, the concentration of these does not decrease. Antifreeze performance can be maintained, and labor for maintenance such as injection of antifreeze liquid and other chemical liquids can be saved.

Further, during operation, the refrigerant or heat medium scattered to the space side hits the back surface of the eliminator and is reflected or is collected on the surface, so that it mixes with rainwater and the like in the space part to the water collecting trough. The refrigerant or heat medium that does not flow in and is reflected or collected on the back surface of the eliminator drops on the lower water tank, so it is possible to effectively prevent leakage of the refrigerant or heat medium to the outside of the circulation system due to scattering. Therefore, the heat exchange efficiency can be favorably maintained.

[Brief description of drawings]

FIG. 1 is a system diagram showing a configuration of an embodiment of a heat exchange tower of the present invention.

FIG. 2 is a diagram showing an arrangement state of eliminators of the heat exchange tower of FIG.

FIG. 3 is a view showing an arrangement state of eliminators having a protrusion provided on a bottom surface.

FIG. 4 is a cross-sectional view of essential parts showing a connected state of a rainwater receiving member and a water collecting trough of the heat exchange tower of FIG. 1.

FIG. 5 is a layout view of a rainwater receiving member of another embodiment of the heat exchange tower of the present invention.

[Explanation of symbols]

 1 Heat exchange tower 2 Main body 3 Space part 4 Filling material 6 Lower water tank 8 Fan 9 Exhaust port 10 Pump 11 Load part 12 Shield plate 13 Eliminator 14 Water collecting trough 15 Discharge pipe 16 Rainwater receiving member 13a Projection strip

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Osamu Goto 3-2-16 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toyosu General Office

Claims (3)

[Claims] 1. A refrigerant or heat medium is sprinkled to a filler (4) arranged adjacent to an internal space (3) communicating with the exhaust port (9) to perform heat exchange. In a heat exchange tower in which a medium is collected in a lower water tank (6) provided below the space, a plurality of eliminators (13) having appropriate widths are separated from the top of the packing material toward the space below. And multiple stages, and arranged in a stepwise manner by sequentially shifting the position in the horizontal direction so that the rainwater received by the eliminator drops on the adjacent lower eliminator.
A heat exchange tower comprising a rainwater receiving member (16) arranged at a lower portion of the eliminator and an edge portion of the rainwater receiving member (16) connected to a water collecting trough (14) provided below the space portion. 2. The heat exchange tower according to claim 1, wherein the eliminators made of elongated strip-shaped plate materials are arranged in an inclined state with an edge portion on the packing material side being higher. 3. The heat exchange tower according to claim 1 or 2, wherein a ridge (13a) is provided on the bottom surface of the eliminator.