JP3994214B2 - Water tower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold water tower.
[0002]
[Prior art]
FIG. 6 shows an example of a conventional cold water tower. The cold water tower includes an exhaust port 3 having a blower 2 provided at the top of the casing 1, an outside air intake port 4 formed on the outer periphery of the casing 1, and The hot water tank 5 provided around the exhaust port 3 in the upper part of the casing 1 and the hot water 7 disposed below the hot water tank 5 and allowed to flow down from the water spray port 6 on the lower surface of the hot water tank 5 are taken out by the blower 2. A heat exchanging section 9 is provided for heat exchange with the outside air 8 taken in from the inlet 4 and cooled, and the heat exchanging section 9 is a dry air heating section 11 comprising a finned tube 10 provided immediately below the hot water tank 5. And a space for the outside air 8 to be secured by arranging in parallel a number of heat exchange face materials disposed on the lower side of the dry air heating unit 11 and having irregularities on the surface of a sheet-like synthetic resin material, for example. The filler 12 is made up of That.
[0003]
In the figure, reference numeral 13 denotes a bottom water tank for collecting the cooled water.
[0004]
In such a cold water tower, the hot water 7 in the hot water tank 5 is caused to flow down from the sprinkling port 6 through the finned tube 10 of the dry air heating unit 11 and then down along the filler 12 at the lower portion thereof, and at the same time, the blower The hot water 7 is cooled by sucking the outside air 8 from the outside air inlet 4 and circulating the dry air heating unit 11 and the filler 12 in the lateral direction.
[0005]
At this time, the hot water 7 flowing down along the filler 12 is effectively cooled by directly exchanging heat with the outside air 8. On the other hand, the outside air 8 having exchanged heat with the warm water 7 in the filler 12. As the temperature rises and the humidity becomes the humid air 14 with approximately 100%, if the humid air 14 is discharged to the outside of the cold water tower as it is, white smoke may be generated when the outside air temperature is low.
[0006]
The generation of such white smoke results in misunderstandings such as whether it is polluting the outside air to neighboring residents, etc., and white smoke falls on the ground and stands like mist around it, causing poor visibility Therefore, there is an increasing demand to minimize the generation of white smoke.
[0007]
For this reason, in the illustrated example, when the hot water 7 flows down through the finned tube 10 of the dry air heating unit 11, the outside air 8 flowing along the outer periphery of the finned tube 10 is heated in a dry manner to reduce the humidity. However, the dry air 15 is mixed with the humid air 14 by the blower 2 to reduce the humidity of the air discharged from the exhaust port 3 and prevent the generation of white smoke. is there.
[0008]
[Problems to be solved by the invention]
However, in the conventional cold water tower as described above, in order to produce dry air 15 for preventing the generation of white smoke, a dedicated dry air heating unit 11 by the finned tube 10 is provided. However, the heat exchange efficiency cannot be increased due to the indirect heat exchange by the finned tube 10, and thus a large capacity is required and the structure of the dry air heating unit 11 is increased. There is a problem that the size of the chilled water tower increases and the height of the chilled water tower increases, leading to an increase in the size of the entire cold water tower.
[0009]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to reduce the construction cost and size of a cold water tower that can prevent the generation of white smoke.
[0010]
[Means for Solving the Problems]
The present invention is a chilled water tower that cools warm water by spraying warm water from a plurality of sprinkling openings opened on the lower surface of the warm water tank to the filler just below the warm water tank, and bringing the outside air into direct contact with the warm water flowing down the surface of the filler The filler is divided into a normal wet region and a wet / dry switching region that are separated from the circulation space of the outside air and alternately arranged, and a water spray port communicating with the wet / dry switching region is provided from the hot water tank. It is isolated in a liquid-tight manner from the water storage area in the hot water tank by a short isolator, and a sprinkler pipe dedicated to the wet / dry switching area is laid as an isolator on each row of the sprinklers, and the length of the sprinkler pipe A nozzle part projecting downward in a plurality of directions is liquid-tightly inserted into the water spout immediately below the sprinkling pipe, and a common sub-water tank extending in the direction in which the sprinkling pipes are arranged adjacent to the hot water tank. A dedicated sprinkling pipe is connected to the wet / dry switching area, and there are many It arranged a water supply header water holes were opened across the entire and is characterized by being configured as capable of supplying hot water to the appropriate relative to the isolation body.
[0011]
Thus, when warm water is supplied to both the hot water tank and the isolated body when there is no risk of white smoke (when the outside air temperature is high), the normal wet area of the filler from the water spout on the lower surface of the hot water tank Water spraying is performed in both the wet and dry switching areas, and direct cooling of warm water by outside air is effectively performed in the entire area of the filler.
[0012]
At this time, the water spout that communicates with the wet / dry switching area is isolated from the water storage area in the hot water tank by an isolation body that is shorter than the hot water tank. It is possible to raise it to a position higher than the isolated body so that the isolated body is completely submerged, and in this way, the warm water supplied to the water storage area in the hot water tank is more evenly distributed to the isolated body. There is no possibility that the distribution will be obstructed, and the hot water can be distributed well to the water storage area in the hot water tank.
[0013]
On the other hand, if the supply of hot water to the isolation body is interrupted when there is a risk of white smoke (when the outside air temperature is low), direct cooling of the hot water by the outside air in the always wet area where hot water is sprayed In addition, dry heating of the outside air flowing through the wet / dry switching area where hot water is not sprinkled is performed at the same time, and dry air generated by dry heating is mixed with wet air generated by direct cooling to prevent generation of white smoke. The
[0014]
Moreover, laying a wet-dry changeover region dedicated sprinkler tube as isolated bodies on each row of water spray port communicating with wet type-dry changeover region was projecting downward direction and in the longitudinal direction a plurality of locations of diverging water tube When the nozzle unit to interpolate fitted in a liquid tight manner to the mouth watering right underneath the sprinkling pipe, without performing any special structure changes in a hot water bath itself, it is possible to divert the conventional manner of a hot water bath and also wet -Even when the water spout communicating with the dry switching area is liquid-tightly isolated from the water storage area in the hot water tank, it is possible to simply carry out by laying the water pipe in the hot water tank. Furthermore, if the sprinkler pipe dedicated to the wet / dry switching area is connected to a common sub-water tank that is adjacent to the hot water tank and extends in the direction in which the water pipes are arranged, the hot water once stored in the sub-water tank will be stored. It is distributed evenly to each water spray pipe and spreads well to the back, and good water sprinkling with high uniformity in the wet / dry switching region of the filler becomes possible.
[0015]
In the present invention, at a substantially central position in the hot water tank, a date box having an opening on the side surface is installed on the water spray pipe, and a water supply pipe is installed on the upper surface of the date box, from the water supply pipe. It is preferable that the supplied hot water is temporarily stored in the inside of the date box and flows out from the opening on the side surface. In this way, the hot water supplied from the water supply pipe is The flow rate is reduced by the box, and the flow is gradually and evenly discharged from the opening on the side surface, so that the hot water can be supplied into the hot water tank very well.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
1 to 5 show an example of an embodiment for carrying out the present invention, and portions denoted by the same reference numerals as those in FIG. 6 represent the same items.
[0018]
In this embodiment, a dedicated dry air heating unit using a finned tube is not required, and the heat exchanging unit disposed below the hot water tank 5 is constituted by the filler 12 as described in detail below.
[0019]
That is, the filler 12 has a structure in which a circulation space 16 of the outside air 8 extending in the vertical direction is secured by providing a large number of heat exchange facets with irregularities on the surface of a sheet-like synthetic resin material in parallel. It is divided into a normal wet region 17 and a wet / dry switching region 18 that are separated from each other by a circulation space 16 of the outside air 8 (see FIG. 2) and are alternately arranged.
[0020]
Here, the always wet area 17 is formed with the circulation space 16 for three rows as one unit, and the wet / dry switching area 18 is formed with the circulation space 16 for one row as one unit. However, the upper end of the filler 12 forming the wet / dry switching region 18 is disposed on the side surface of the water shielding plate 26 having an inverted U-shaped cross section that is installed on the lower surface of the hot water tank 5 and extends along the wet region 17 at all times. The hot water 7 can be prevented from intruding from the adjacent always wet area 17.
[0021]
Here, particularly as shown in FIGS. 3 and 4, each water shielding plate 26 also serves as a support member that supports the hot water tank 5, and both longitudinal ends of each water shielding plate 26 are the main structure of the cold water tower. 20 is installed.
[0022]
Further, in the hot water tank 5, water spouts 6 ′ communicating with the wet / dry switching area 18 are separated from the water storage areas in the hot water tank 5 in a liquid-tight manner. In addition, the water spray pipes 19 dedicated to the wet / dry switching area 18 are laid, and the nozzle portions 19a projecting downward at a plurality of locations in the longitudinal direction of the water spray pipes 19 are not shown with respect to the water spout 6 '. It is inserted in a liquid-tight manner through an O-ring or a gasket.
[0023]
Here, the water spray pipes 19 are shorter than the hot water tank 5, and the hot water 7 is supplied into the hot water tank 5 so that the water spray pipes 19 can be submerged. .
[0024]
Further, each of the water spray pipes 19 communicates with a common sub water tank 21 extending in the direction in which the water sprinkling pipes 19 are arranged adjacent to the hot water tank 5. A water supply header 23 extending along the water tank 21 and having a number of water supply holes 22 opened over substantially the entire longitudinal direction is disposed on the lower surface thereof, and the hot water 7 supplied to the water supply header 23 is supplied to the sub-water tank 21. Water is supplied substantially evenly at a plurality of locations in the longitudinal direction.
[0025]
In addition, at a substantially central position in the hot water tank 5, a date box 25 in which openings 24 are formed in a slit shape on all side surfaces directed in four directions is installed on the water spray pipe 19 at the position, The hot water 7 supplied from the water supply pipe 27 inserted and installed on the upper surface of the date box 25 is temporarily stored in the interior, so that the flow velocity is reduced and the side opening 24 is gradually and evenly distributed in all directions. Has been leaked.
[0026]
Further, in the illustrated example, a watering nozzle 28 is attached to the watering port 6 on the lower surface of the hot water tank 5, and if such a watering nozzle 28 is attached to the watering port 6, the hot water 7 is distributed in three rows. 16 can be diffused satisfactorily with respect to the filler 12 in the always wet region 17, but may be omitted by adjusting the spacing between the fillers 12, the number of the sprinkling ports 6, the arrangement position, the diameter, etc. Is also possible.
[0027]
In the figure, reference numeral 29 denotes a fixing tool for fixing each water spray pipe 19 to the bottom surface of the hot water tank 5, and the fixing tool 29 is bolted together with the water shielding plate 26 on the lower surface of the hot water tank 5. (See FIGS. 1 and 5).
[0028]
Thus, when there is no possibility that white smoke is generated (when the outside air temperature is high), the hot water 7 is introduced into the date box 25 from the water supply pipe 27, and the hot water is temporarily stored in the date box 25. 7 is stored to reduce the flow rate and flow out from the side opening 24 gently and evenly in all directions, thereby supplying hot water 7 so that an appropriate water level is maintained in the hot water tank 5 and water supply. The hot water 7 is sprayed almost uniformly at a plurality of locations in the longitudinal direction of the sub-water tank 21 by the header 23 and the hot water 7 is supplied so that an appropriate water level is maintained in the sub-water tank 21. When the hot water 7 is distributed and supplied to the sprinkling pipes 19 substantially evenly, the hot water 7 is sprinkled from the water spout 6 on the lower surface of the hot water tank 5 to the constantly wet area 17 of the filler 12 and filled from each sprinkling pipe 19 Wet / dry switching area 18 of the material 12 On the other hand, since the warm water 7 is sprinkled, water is always sprayed in both the wet region 17 and the wet / dry switching region 18, and the direct cooling of the warm water 7 by the outside air 8 is effectively performed in the entire region of the filler 12. Is called.
[0029]
At this time, the water spout 6 ′ communicating with the wet / dry switching region 18 is isolated from the water storage region in the hot water tank 5 by the water spray pipe 19, which is an isolated body, so It is possible to raise the water level of the hot water 7 to a position higher than the sprinkling pipe 19 so that the sprinkling pipe 19 is completely submerged. In this way, the hot water 7 is supplied to the water storage area in the hot water tank 5. Therefore, there is no possibility that the hot water 7 is blocked from being evenly distributed by the water spray pipes 19, and the hot water 7 can be well distributed to the water storage region in the hot water tank 5.
[0030]
On the other hand, when there is a possibility that white smoke may be generated (when the outside air temperature is low), if the supply of the hot water 7 to each water spray pipe 19 is cut off, the outside air 8 in the always wet region 17 where the hot water 7 is sprayed. The direct cooling of the hot water 7 by the water and the dry heating of the outside air 8 flowing through the wet / dry switching region 18 where the hot water 7 is not sprinkled are simultaneously performed, and the dry air generated by the dry heating is added to the humid air generated by the direct cooling. Mixing prevents the generation of white smoke.
[0031]
Therefore, according to the chilled water tower of the present embodiment described above, by using a part of the filler 12 as the wet / dry switching region 18, a dedicated dry air heating unit using a finned tube can be dispensed with. In addition, since the hot water tank 5 can be implemented with the same height as the conventional one by separately spraying the wet / dry switching region 18 with the water spray pipe 19, generation of white smoke can be prevented. It is possible to reduce the construction cost and size of the chilled water tower.
[0032]
Further, the water spout 6 ′ communicating with the wet / dry switching region 18 is isolated from the water storage region in the hot water tank 5 by a water spray pipe 19 having a lower height than the hot water tank 5. It is possible to raise the water level of the hot water 7 to a position higher than the sprinkling pipe 19 so that the sprinkling pipe 19 is completely submerged, and the hot water 7 supplied to the water storage area in the hot water tank 5 is connected to each water sprinkling pipe. 19 eliminates the possibility of being obstructed by the uniform distribution, allows the hot water 7 to be well distributed to the water storage area in the hot water tank 5, and to the hot water tank in the conventional cold water tower in which the entire area is always wet. The hot water 7 can be used as it is, for example, using a conventionally known date box 25 as shown in the figure, etc., and the hot water 7 can be supplied into the hot water tank 5 very well without any particular difficulty.
[0033]
Further, particularly in the present embodiment, a sprinkling pipe 19 dedicated to the wet / dry switching area 18 is laid as an isolator on each row of the sprinkling ports 6 ′ communicating with the wet / dry switching area 18. Since the nozzle portions 19a projecting downward at a plurality of locations in the longitudinal direction are fitted in a liquid-tight manner with respect to the water spout 6 ', the conventional water-cooling tank 5 itself is not subjected to a special structural change. The hot water tank 5 similar to the above can be diverted, and the water sprinkling pipe 19 can also be used to isolate the water spout 6 ′ communicating with the wet / dry switching area 18 in a liquid-tight manner from the water storage area in the hot water tank 5. It can be easily implemented simply by laying in the hot water tank 5.
[0034]
Further, in this embodiment, the water spray pipe 19 dedicated to the wet / dry switching area 18 is connected to a common sub-water tank 21 that is adjacent to the hot water tank 5 and extends in the direction in which the water spray pipes 19 are arranged. Therefore, the hot water 7 once stored in the sub-water tank 21 is distributed almost evenly to each sprinkling pipe 19 and spreads well to the back, and good watering with high uniformity in the wet / dry switching region 18 of the filler 12 is achieved. Can also be done.
[0035]
In addition, the cold water tower of the present invention is not limited to the above-described embodiment, and it is not always necessary to use a water spray pipe as shown in the figure for the isolation body. For example, it is shown as a water shielding plate in the figure. Such a reverse U-shaped cross-section isolated body may be adopted, and the water spout may be isolated from the water storage area in the hot water tank by covering the water spout connected to the wet / dry switching area. Of course, various modifications can be made without departing from the scope of the present invention.
[0036]
【The invention's effect】
According to the above-described cold water tower of the present invention, the following various excellent effects can be obtained.
[0037]
(I) According to the invention described in claim 1 of the present invention, by using a part of the filler as a wet / dry switching region, a dedicated dry air heating unit using a finned tube is not required. In addition, water can be separately sprayed into the wet / dry switching area by an isolator, and the hot water tank can be carried out with the same height as the conventional one, so that a cold water tower that can prevent the generation of white smoke The construction cost can be reduced and the size can be reduced.
[0038]
(II) According to the invention described in claim 1 of the present invention, the water level in the hot water tank can be raised to a position higher than the isolated body so that the isolated body is completely submerged, The hot water supplied to the water storage area in the hot water tank eliminates the possibility that the isolating body will block the uniform distribution, and the hot water can be well distributed to the water storage area in the hot water tank, so that the entire area is always wet. The water supply means to the hot water tank in the conventional cold water tower that has been used as the area can be used as it is, and the hot water can be satisfactorily supplied into the hot water tank.
[0039]
(III) According to the invention described in claim 1 of the present invention, without performing any special structure changes in a hot water bath itself, it is possible to divert the conventional manner of the hot water tank, also wet-dry changeover region In order to isolate the water spout opening communicating with the liquid storage area in the hot water tank in a liquid-tight manner, it can be easily carried out simply by laying the water spray pipe in the hot water tank. In addition, warm water once stored in the sub-water tank can be distributed evenly to each sprinkler pipe and distributed well to the back, so that good water spraying with high uniformity in the wet / dry switching region of the filler can be achieved. It can be performed.
[0040]
(IV) According to the invention described in claim 2 of the present invention, a date box having an opening formed on the side surface is installed on the water spray pipe at a substantially central position in the hot water tank, and the When a water supply pipe is installed on the upper surface, and the hot water supplied from the water supply pipe is temporarily stored in the inside of the dust box and flows out from the side opening, the water supply pipe is supplied. The flow rate of the warm water is reduced in the date box, and the warm water is gradually and evenly discharged from the opening on the side surface, so that the warm water can be supplied into the warm water tank very well without any particular difficulty.
[Brief description of the drawings]
FIG. 1 is a front sectional view showing an example of an embodiment for carrying out the present invention.
FIG. 2 is a plan view of the hot water tank of FIG.
3 is a view taken in the direction of arrows III-III in FIG.
4 is a view taken in the direction of arrows IV-IV in FIG. 3;
FIG. 5 is a detailed view showing a main part of FIG.
FIG. 6 is a schematic view showing a conventional example.
[Explanation of symbols]
5 Hot water tank 6 Sprinkling port 6 'Sprinkling port 7 Warm water 8 Outside air 12 Filler 16 Distribution space 17 Constant wet region 18 Wet / dry switching region 19 Sprinkling pipe (isolated body)
19a Nozzle part 21 Sub-water tank
22 water supply holes
23 water supply header
24 openings
25- day box
27 water supply pipes

Claims (2)

A chilled water tower that cools hot water by spraying warm water from a plurality of sprinkling openings opened on the lower surface of the hot water tank to the filler just below the hot water tank, and bringing the outside air into direct contact with the warm water flowing down the surface of the filler, The filler is divided into a normal wet region and a wet / dry switching region that are separated from each other by the outside air circulation space, and the water spray ports communicating with the wet / dry switching region are isolated lower than the hot water tank. The body is liquid- tightly isolated from the water storage area in the hot water tank, and water spray pipes dedicated to the wet / dry switching area are laid as isolation bodies on each row of the water spouts, and at a plurality of longitudinal positions of the water spray pipes. The nozzle part protruding downward is liquid-tightly inserted into the water spout immediately below the water spray pipe, and wet / dry switching to a common sub-water tank extending in the direction in which the water sprinkler pipes are arranged adjacent to the hot water tank. A dedicated water sprinkling pipe is connected, and a large number of water supply holes are formed above the auxiliary water tank. Cooling tower, characterized in that the entire area is disposed a water supply header which is open, and adapted capable of supplying hot water to the appropriate relative to the isolation body. A date box having an opening on the side surface is installed on the water spray pipe at a substantially central position in the hot water tank, and a water supply pipe is installed on the upper surface of the date box, and the hot water supplied from the water supply pipe is The chilled water tower according to claim 1, wherein the chilled water tower is configured to be temporarily stored in the inside of the date box and to flow out from an opening on a side surface.

Images