JP4361999B2 - Water purification equipment for cooling tower - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water purifier for purifying air conditioning cooling water that circulates in a building for air conditioning and falls in a cooling tower, and more specifically, cooling installed in a water collection basin of an air conditioning cooling tower. The present invention relates to a water purifier for purifying water.
[0002]
[Prior art]
The cooling water for air conditioning circulating in the piping for air conditioning arranged in the building is once collected in a cooling tower arranged on the roof of the building, cooled, and then returned to the piping again. . The cooling tower has a configuration in which cooling water introduced into the cooling tower body and cooled is dropped from the cooling tower body and received in the catchment basin, and the cooling water dropped in the catchment basin is connected to the catchment basin. It is returned to the pipe from the drainage pipe.
This cooling water is in a state of containing various dusts and foreign substances in the process of circulating in the piping, and these dusts cause the cooling capacity of the cooling water to decrease, clogging of the piping, deterioration, etc. It is necessary to arrange the water purification device in the cooling tower to purify the water. As a conventional water purifier, a filter called a strainer provided at a drain outlet in a catchment basin of a cooling tower for air conditioning is generally used.
This strainer is a filter composed of a filter and is effective for removing dust and foreign matters larger than the filter eyes mixed in the cooling water. Was letting go.
By making the eyes of the strainer filter fine, it is possible to remove fine foreign matters. However, the foreign matter removed by the strainer clogs the filter eyes and lowers the drainage capacity. For example, it is necessary to perform cleaning or the like by maintenance once every three months. Detailed maintenance requires frequent maintenance. Therefore, there is a limit to making the filter finer, and therefore there is a limit to the foreign matter removal effect.
In addition, the strainer cannot completely improve the deterioration of water quality due to aging of the cooling water, for example, cooling by directly contacting the contaminated air of machine oil, acid rain or urban areas. Water acidification could not be addressed.
Further, even if the amount of foreign matter increases even though it is a fine foreign matter that cannot be removed by the strainer, there is a problem that the function of the cooling water as a cooling medium is deteriorated. Further, for example, when machine oil is mixed in the cooling water, the characteristics of the cooling water as a cooling medium change, so that the function of the cooling device is lowered. Further, when the cooling water is acidified, there is a problem in that each part of the cooling water circulation path is oxidized to accelerate deterioration such as corrosion.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and provides a water purification device for a cooling tower that removes fine foreign matters in cooling water without requiring frequent maintenance and suppresses deterioration of cooling water quality. It is an object.
[0004]
[Means for Solving the Problems]
The present invention is a water purifier installed inside a catchment basin that is disposed below a cooling tower for air conditioning, receives and accommodates cooling water falling from the cooling tower, and drains the water from the drain outlet to the outside. The water purifier accommodates granular green mud schist and has at least a water inlet and a water outlet respectively provided with openings, and a perforated plate attached to the water inlet and water outlet openings of the container, respectively. And a perforated plate on the water discharge side of the water conduit is positioned within a water collection range in which cooling water around the drain outlet is collected.
According to this, by using the negative pressure by the circulating pump of the cooling water, the cooling water is configured to pass through the water purifier installed in the catchment basin, and granular water is used to purify the cooling water. Green mud schist was used. For this reason, while removing the fine foreign material in cooling water without requiring frequent maintenance, the water quality deterioration of cooling water can be suppressed.
The present invention is a water purifier installed inside a catchment basin that is disposed below a cooling tower for air conditioning, receives and accommodates cooling water falling from the cooling tower, and drains the water from the drain outlet to the outside. The water purifier accommodates granular green mud schist and has at least a water inlet and a water outlet respectively provided with openings, and a perforated plate attached to the water inlet and water outlet openings of the container, respectively. And a water conduit that introduces water from the perforated plate on the water outlet side and discharges water toward the drain outlet, and within the water collection range in which cooling water around the drain outlet is collected, It is characterized in that the water outlet of the water conduit is located.
According to this, since the housing of the water purifier can be installed at a position away from the drain outlet in the catchment basin, the water purifier casing can be installed by installing the water purifier casing outside the water collecting range of the drain outlet. Water can be purified without deteriorating the water capacity and without retaining the cooling water at a site away from the drain.
[0005]
In the present invention , the cooling tower water purifier has a plurality of storage containers, and the water guide pipes supply the cooling water discharged from the perforated plates on the outlet side of the plurality of storage containers, respectively, within the water collection range. It is comprised so that it may lead to.
According to this, since a plurality of water purifiers can be installed in the catchment basin, it is possible to increase the water purifying capacity and reduce the number of sites where the cooling water stays in the catchment basin.
The present invention is characterized in that a submersible pump is disposed at an appropriate place in the basin to enhance the water discharge capacity from the water discharge port of the water conduit.
According to this, it is possible to prevent the cooling water from staying in the basin and increase the circulation amount.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
Drawing 1 is a figure explaining the schematic structure of the cooling tower in which the water purifier concerning this embodiment is installed.
A cooling tower 1 shown in FIG. 1 includes a cooling tower body 2 supported by a support member 3 erected on an installation surface 50, and a catchment basin also supported by the support member 3 below the cooling tower body 2. 4, a water intake pipe 5 is connected to the cooling tower body 2, and a water distribution pipe 6 is connected to the catchment basin 4.
A radiator 13 that replaces the amount of superheat in the cooling water is provided in the cooling tower body 2, and cooling water is placed on the radiator 13 from the shower pipe 12 that is disposed on the radiator 13 and connected to the water inlet pipe 5. Be sprayed. Further, since the cooling fan 11 driven by a drive source (not shown) forcibly flows air into the radiator 13, the heat substitution efficiency is increased.
In the catchment basin 4, a drain outlet 22 of the drain pipe 6 is disposed, and a strainer 21 that is a filter for filtering dust in the cooling water with a filter is attached to the drain outlet 22. A pump 7 driven by a driving source (not shown) is attached in the middle of the drain pipe 6 to circulate cooling water forcibly. Accordingly, a water collection range 23 in which cooling water is collected toward the strainer 21 is formed around the strainer 21 by the negative pressure generated by suction by the pump 7.
A water conduit 32 is disposed through one side wall of the water purification device main body 31 of the water purification device 30 of the present embodiment, and the water purification device main body 31 is disposed so as to be seated on the bottom surface 4 a of the water collecting basin 4, for example. The water outlet 32 a of the water conduit 32 is arranged so as to be positioned in the water collection range 23.
[0007]
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
As shown in FIG. 2, in this embodiment, two water purifier main bodies 31 are connected by a water conduit 32, and cooling water discharged from them is guided into a water collection range 23. The water outlet 32a of the water conduit 32 is arranged in the water collection range 23, and negative pressure is generated in the water outlet 32a, so that negative pressure is also generated in the two water purifier main bodies 31 and the cooling apparatus main body 31 is generated. Can collect cooling water from the surroundings.
FIG. 3 is a perspective view showing a schematic configuration of the water purifier main body 31 of the present embodiment.
The water purifier main body 31 further has a storage container 33 for storing granular green mud schist. The upper surface 33a of the storage container 33 is exposed to the outside of the water purifier main body 31 and is open to the opening. Has a water inlet side perforated plate 34. The inlet-side perforated plate 34 is a plate in which a large number of holes are formed by punching or the like, and the holes are smaller than the particle size of the granular green mud schist, so that the granular green mud schist does not flow out of the hole. Is. Moreover, the hole provided in the water-inlet side perforated plate 34 may not be a hole by punching but may be a mesh. From the water-inlet side perforated plate 34, the dust floating on the cooling water upper surface 25 shown in FIG. 1 and the dust floating in the cooling water are taken together with the cooling water.
Moreover, although the lower surface 33b of the storage container 33 is opened similarly to the upper surface 33a, it arrange | positions so that the opening may become the inside of the water purifier main body 31. FIG. The opening has a water discharge side perforated plate 35. The water discharge side perforated plate 35 is a plate in which a large number of holes smaller than the particle size of the granular green mud schist are formed by punching or the like, similarly to the water inlet side perforated plate 34. The holes provided in the water discharge side perforated plate 35 may also be a mesh.
In addition, a water inlet 32 b of the water conduit 32 is disposed inside the water purifier main body 31. Cooling water discharged from the outlet-side perforated plate 35 is collected from the water inlet 32 b and fed into the water conduit 32. At that time, since the negative pressure generated at the water outlet 32a is generated as it is at the water inlet 32b of the water conduit 32, the surrounding cooling water can be collected.
For example, as shown in the example of FIG. 4, the submersible pump 36 may be disposed in the water purifier main body 31 so that the water discharged from the water discharge side perforated plate 35 can be efficiently guided into the water conduit 32. Alternatively, a submersible pump 36 may be disposed at a proper position of the water conduit 32 located outside the water purifier main body 31 so as to actively suck out the water discharged from the water discharge side perforated plate 35 side. In this case, the cooling water sucked from the water absorption pipe 37 is guided to the water guide pipe 32.
[0008]
Next, FIG. 5 is a configuration explanatory view of a cooling tower water purifier according to another embodiment of the present invention. The same parts as those in FIG. A configuration in which a water purifier 40 is connected to an appropriate location (upstream of the pump 7) of the drain pipe 6 drawn out of the water basin 4 from the strainer 21 in the water basin 4 without arranging the water purifier in the basin 4. Is characteristic.
That is, the water purifier 40 is a column 41 connected to the drain pipe 6 positioned between the pump 7 and the strainer 21, and the waste water discharged through the strainer 21 is purified by a water purifying mechanism provided in the column 41. To do.
FIG. 6A is a front half sectional view showing the configuration of the column 41, and FIG. 6B is a configuration diagram of the cartridge.
The column 41 includes a pipe body 42 connected to the drain pipe 6 and a cartridge 43 detachably mounted therein. The pipe body 42 includes, for example, a cylindrical first portion 43 and a tapered shape. The second portion 44 is connected to the drain pipe 6 by an appropriate joint means 45. A space for accommodating the cylindrical cartridge 43 is provided in the first portion 43, and a drain valve 46 communicating with the inside is disposed on the outer periphery thereof.
A cartridge 43 shown in FIG. 6B has a main body 47 formed of a stainless steel plate or the like in a hollow cylindrical shape, and a cylindrical storage container 48 made of punching metal disposed at an appropriate position of the main body 47. The main body 47 has a configuration penetrating in the axial direction. Further, the cylindrical container 48 is incorporated so as to cut the main body 47, and a peripheral surface 48a made of a punching metal is exposed. Further, both end surfaces in the axial direction of the storage container are exposed in a central hole that penetrates the main body 47. The storage container 48 is a punched metal plate processed into a cylindrical shape, and a required amount of granular green mud schist is stored therein. Punching metal surfaces 48b and 48c on the water inlet side and water outlet side of the storage container 48 are positioned in the flow path of the cooling water passing through the drain pipe 6 (main body 47) so as to allow all the cooling water to pass through. It is configured.
The container is not limited to the punching metal, but may be a mesh. In this specification, the punching metal is a concept including a state in which a mesh or other small holes are provided.
Accordingly, the cooling water in the catchment basin 4 sucked into the drain pipe 6 through the strainer 21 by the suction force of the pump 7 is guided into the water purifier 40 and passes through the cartridge 43 when passing through the cartridge 43. Forced to pass. At this time, since the green mud schist contained in the storage container 48 removes foreign matters by its purification action, the cooling water flowing downstream through the storage container 48 is sufficiently purified.
According to this embodiment, since a purification apparatus can be arrange | positioned out of a catchment basin, installation is easy and a maintenance becomes easy.
[0009]
The granular green mud schist stored in the container 33 is a mudstone as described in detail in the previous patent applications filed by the present inventor: Japanese Patent Application Nos. 10-266889 and 11-324675. For example, it is contained in the Samba metamorphic rock. Sannami metamorphic rocks are regional metamorphic rocks, and the metamorphic rocks undergo metamorphism under crustal pressure and thin layers with different mineral compositions are formed into pieces. In addition, countlessly developed cleaves are generated in the lamellar thin layer of wide-range metamorphic rocks under the crust pressure, and recrystallization occurs along the cleaves. The growth direction of the crystal is parallel to the cleavage or the direction of the crust pressure. Due to this cleavage and recrystallization, innumerable through-holes are formed in the chlorite schist, so that the chlorite schist has a porous shape in which the through-holes are maintained even if the powder is about 0.7 μm to 40 μm. This through-hole has a function of adsorbing with a large surface area and a function as a colony of microorganisms in addition to a filtering function as a filter.
In addition, chlorite schist contains divalent iron and trivalent iron in a ratio of about 3: 1 and can repeat oxidation and reduction actions through carbon. When divalent iron is oxidized to produce trivalent iron, negative ions are generated and oxygen is deprived from surrounding substances (for example, water containing oxygen) to reduce the surrounding substances. .
In addition, chlorite schist generates electrical energy when trivalent iron is reduced to divalent iron, and generates magnetism (lines of magnetic force) because current flows. Since the magnetic field lines increase the cluster size of water molecules, the degree of separation between oil and moisture can be increased.
Therefore, the chlorite schist has an effect of purifying water and preventing oxidation, and has an effect not found in general granular rocks. That is, the chlorite schist can purify water in the long term by comprehensive effects such as the above-described function as a colony of microorganisms, negative ions, and magnetic effects.
As for the particle size of chlorite schist, the finer one increases the contact area between water and chlorite schist, and it has been found that water purification and antioxidation effects are excellent. Since the fluid resistance is increased and the flow rate is decreased, the water purification and antioxidant effects are decreased. For this reason, for example, a particle diameter of 0.5 mm or more and 10 mm or less is effective. In addition, since chlorite schist is soft, some fine particles and powders flow out into the cooling water circulation path, but they also have water purification and antioxidation effects. It is possible to remove scale and the like adhering to the surface.
[0010]
Thus, in this embodiment, in order to purify the cooling water, the cooling water is configured to pass through the water purification apparatus installed in the catchment basin by using the negative pressure by the cooling water circulation pump. Since granular chlorite schist is used, it is possible to remove fine foreign matters in the cooling water without requiring frequent maintenance, and to suppress water quality deterioration of the cooling water.
The cooling tower water purifier of the present embodiment has a water conduit that guides the cooling water that flows out from the perforated plate on the water outlet side to a place away from the storage container in the catchment basin, and the water outlet of the water conduit Is installed in the catchment basin so that it is located within the catchment range, so the housing of the water purification device can be installed at a position away from the drainage port in the catchment basin, By installing the casing of the water purifier, the water collecting ability of the drain port can be reduced, and the water can be purified without leaving the cooling water at a part away from the drain port.
In addition, the cooling tower water purifier of the present embodiment has a plurality of storage containers, and the water conduit guides the cooling water discharged from the perforated plates on the outlet side of the plurality of storage containers, respectively, into the water collection range. Since it comprised as mentioned above, while being able to install two or more water purification apparatus in a catchment basin, while enhancing a water purification capability, the site | part where the cooling water stays in a catchment basin can be reduced.
[0011]
【The invention's effect】
As described above, according to the present invention , the cooling water is configured to pass through the water purifier installed in the catchment basin by using the negative pressure generated by the cooling water circulation pump. Since granular pellucid schist is used to purify the water, it is possible to remove fine foreign matters in the cooling water without requiring frequent maintenance and to suppress deterioration of the cooling water quality.
According to the present invention , the water purification apparatus for a cooling tower has a water conduit that guides the cooling water discharged from the perforated plate on the water discharge side to a place away from the storage container in the catchment basin, and the water outlet of the water conduit is Since it was installed in the catchment basin so as to be located within the catchment range, the water purification device casing can be placed at a position away from the drainage outlet in the catchment basin, so the water purification device outside the drainage catchment range By installing the housing, it is possible to purify the water without deteriorating the water collecting ability of the drain and without retaining the cooling water at a site away from the drain.
According to the present invention , the cooling tower water purifier has a plurality of storage containers, and the water guide pipes supply the cooling water discharged from the perforated plates on the outlet side of the plurality of storage containers, respectively, within the water collection range. Since it comprised so that it might guide, since a plurality of water purifiers can be installed in the catchment basin, the water purifying capacity can be increased and the number of sites where the cooling water stays in the catchment basin can be reduced. be able to.
According to the present invention , since the submersible pump is provided at an appropriate position in the catchment basin in order to increase the amount of the water discharged into the water conduit for guiding the water in the water purifier main body to the drain pipe, the cooling water is retained. Can be prevented and the circulation rate can be increased.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a schematic configuration of a cooling tower in which a water purification apparatus according to the present embodiment is installed.
FIG. 2 is a cross-sectional view of the AA cross section of FIG. 1 as viewed from above.
FIG. 3 is a perspective view showing a schematic configuration of a water purifier main body of the present embodiment.
FIG. 4 is a configuration explanatory diagram of a water purifier according to another embodiment of the present invention.
FIG. 5 is an overall view for explaining another embodiment of the present invention.
FIG. 6 is a detailed configuration diagram of the water purifier shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cooling tower, 2 Cooling tower main body, 3 Support member, 4 Catchment basin, 4a Bottom face, 5 Water intake pipe, 6 Drain pipe, 7 Pump, 11 Cooling fan, 12 Shower pipe, 13 Radiator, 21 Strainer, 22 Drain port, 23 Water collection range, 25 Cooling water upper surface, 30 Water purification device, 31 Water purification device main body, 32 Water conduit, 32a Water outlet, 32b Water inlet, 33 Storage container, 33a Upper surface, 33b Lower surface, 34 Water inlet side perforated plate, 35 Water outlet Side perforated plate, 50 installation surface.

Claims (3)

Is located below the cooling tower body for air conditioning a water purification device installed inside the water collection basin for draining to the outside by the drainage pipe accommodates receiving the cooling water falling down from the cooling tower body,
A storage container that contains granular chlorite schist and has openings on at least the water inlet side and the water outlet side , perforated plates respectively attached to the water inlet side opening and the water outlet side opening of the container, and the water outlet side opening. A water inlet pipe for collecting the cooling water discharged from the perforated plate, and a water conduit having a water outlet for discharging the cooling water collected from the water inlet to the outside of the container ,
A water purification apparatus for a cooling tower, wherein the water outlet of the water conduit is positioned within a water collection range in which cooling water around the drain outlet of the drain pipe is collected. The cooling tower water purifier has a plurality of storage containers, and the water guide pipes guide cooling water discharged from the perforated plates on the water discharge side of the plurality of storage containers, respectively, into the water collection range. cooling tower water purification device according to claim 1, characterized in that it is configured. The water purification apparatus for cooling towers according to any one of claims 1 and 2 , wherein a submersible pump is disposed at an appropriate location in the basin to increase the water discharge capacity from the water outlet of the water conduit.

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