JP3888544B2 - Cooling water circulating water maintenance management device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for maintaining and managing a cooling device in which a cooling medium is brought into contact with circulating water, and cooling is performed by latent heat of evaporation generated at the time of contact between air and the circulating water and sensible heat of the air.
[Prior art]
For a cooling device that brings cooling medium into contact with circulating water and cools it by latent heat of evaporation generated when the air contacts with the circulating water and sensible heat of the air, the circulating water is circulated and reused. We are working to reduce water and sewerage costs.
[0002]
However, the circulating water used for circulation is mixed with various floating substances floating in the air by constantly contacting with air, and the circulating water is contaminated by long-term use.
[0003]
In addition, the circulating water has a predetermined amount of water that is reduced by evaporation and must be replenished as needed. Then, supplementary water is supplied and injected, but every time the supplementary water is supplemented, there are various obstacles such as the concentration of the evaporation residue being concentrated and the residual value being increased.
[0004]
For example, in the circulating water piping of the cooling device, generation of scale is recognized by calcium ions. Further, in the heat exchanger of the cooling device, the silica ions cause a circulation trouble due to blockage or the heat propagation trouble of the heat exchanger, and the sulfide ions cause corrosion in the circulation channel.
[0005]
Furthermore, the slime (algae) grew and propagated in the cooling device, causing clogging in the circulation channel. And in the circulation channel, the odor disorder by the death and decay of the slime also occurred.
In addition, bacteria in the air such as Resinola fungus may enter the cooling device and propagate in the circulating water, which may cause environmental degradation by riding in the cooling airflow and scattering around.
[0006]
Conventionally, maintenance and management of cooling water circulating water has been performed in order to cope with the above-mentioned various obstacles. However, in the maintenance and management of cooling water circulating water that has conventionally existed, injection of a drug mainly for the purpose of sterilization is performed. However, only the method of forcibly replenishing makeup water and diluting the concentration of evaporation residue in circulating water has been taken, and these methods have the following problems.
[0007]
In other words, the injection of the drug is effective for eliminating Legionella and slime, but has a strong toxicity that kills these bacteria, which in turn affects the human body.
[0008]
In addition, prevention of concentration concentration due to evaporation is ineffective in drug injection. For example, based on measurement with an electric conductivity meter, if it is above a set concentration, it is forcibly filled with make-up water and thinned. Also, with an electric conductivity meter When automatic dilution control is not performed, makeup water is injected periodically by opening the makeup water valve for several hours (for example, every day).
[0009]
As described above, only concentration dilution by forced injection of supplementary water is effective for preventing concentration concentration by evaporation, which is contrary to recent water saving measures and bears a large amount of water and sewerage charges. It was.
By the way, conventionally, an electrode is inserted into so-called irrigation water and electrolysis energy is applied from the outside to increase the energy level of the irrigation water to promote ionization of the irrigation water and improve the quality of the irrigation water. (For example, refer to Patent Document 1).
[0010]
[Patent Document 1]
JP-A-5-261372 Paragraph <0012>
[Problems to be solved by the invention]
However, the apparatus for maintaining and managing the circulating water of the conventional cooling device is not sufficient for solving the above-described conventional problems in performing the circulating water maintenance and management, and the cooling apparatus that can further solve the conventional problems The provision of maintenance management equipment is requested.
[0011]
Thus, the present invention was devised in view of such demands, and can significantly reduce adhesion of scale, generation of slime and generation of Legionella in a cooling device, and the treatment without using a drug. Therefore, an object of the present invention is to provide a circulating water maintenance and management device for a cooling device that is excellent in hygiene and is friendly to the global environment.
[Means for Solving the Problems]
The circulating water maintenance and management device for a cooling device according to the present invention is:
It is a maintenance device for a cooling device that brings cooling medium into contact with circulating water, and performs cooling by the latent heat of evaporation generated when the air contacts with the circulating water and the sensible heat of the air.
A reservoir for storing the circulating water;
Alkaline ion water tank part in which at least alkali ion water is stored, which can be injected into the storage part,
A belt conveyor type electrode device inserted into the circulating water stored in the storage unit,
The belt conveyor type electrode device, whereas per side electrode, and forming a metal belt wound around a belt conveyor, a cathode and without soaking one end of the metal belt to the circulation water, the other side electrode and the With respect to the metal belt to be wound, it is formed as an anode by forming a parallel adjoining with a slight gap, and the rotation speed of the metal belt to wind the belt conveyor is controlled by the residual concentration of the evaporation residue,
A brush-like removing device configured to remove the scale is formed on the other side of the metal belt serving as a cathode to which scale from circulating water in the reservoir is attached, in the vicinity of the outer end of the metal belt, and the brush The shape removal device removes the scale by brushing the surface of the rotating metal belt,
It is characterized by
Or
In the alkaline ion water tank part, electrolytic water is stored in addition to alkaline ion water,
It is characterized by
Or
The cooling tower has a cooling medium, and a storage part for storing circulating water is provided below,
The circulating water delivered from above the cooling tower is brought into contact with the cooling medium, and the circulating water is lowered and stored in a storage section provided below, and the latent heat of evaporation generated when the air and the circulating water come into contact with each other. It is a maintenance device for the circulating water of the cooling device that cools by sensible heat,
The storage part that stores the circulating water, the alkaline ion water tank part that can be injected into the storage part, the alkaline ion water tank part that stores at least alkaline ion water, and the concave part provided in the substantially central part of the storage part can be stored and stored. A box-type electrode device inserted into the circulating water,
The box-type electrode device is formed of a pair of electrode holding materials provided with several locking portions in the facing direction, and three plate-like electrodes attached between the electrode holding materials. The central plate-like electrode is set as an anode, the plate-like electrodes on both sides are set as a cathode and unitized, and the plate-like electrode is installed so as to stand in the vertical direction,
The adjustment of the current value and the voltage value energized to the box electrode device is performed according to the quality of the circulating water.
It is characterized by this.
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
FIG. 1 is an explanatory diagram showing an outline of a circulating water maintenance and management device for a cooling device according to the present invention.
[0012]
The cooling device 1 shown in FIG. 1 includes all cooling devices for so-called industrial production facilities such as air-conditioning cooling devices, refrigerated warehouses, refrigerated warehouses, compressors, and printing machines, and the cooling tower 2 is a cooling medium. A storage portion 5 having a filling contact material 3 and storing the circulating water 4 is provided below.
[0013]
The circulating water 4 stored in the storage unit 5 is sent out via the first pipe 6 and is brought into contact with the filling contact material 3 from above the cooling tower 2 through the second pipe 7.
[0014]
The circulating water 4 in contact with the filling contact material 3 is lowered and stored in a storage unit 5 provided below the cooling tower 2 as it is.
[0015]
Reference numeral 8 denotes a water surface position sensor formed of a so-called floating bag, and replenishment water 17 is replenished according to the water surface position detected by the water surface position sensor 8.
[0016]
Reference numeral 9 denotes an electric conductivity meter, and the electric conductivity meter 9 is inserted into the circulating water 4 of the storage unit 5 so that the electric conductivity of the constantly circulating water 4, in other words, the concentration value of the scale component. Is detected.
[0017]
Reference numeral 10 denotes an alkaline ionized water tank. From the alkaline ionized water tank 10, for example, alkaline ionized water 18 of ph8 to ph14 is added to the circulating water 4 in the storage unit 5. In addition to the alkaline ionized water 18, for example, electrolyzed water, chemical solution, or the like may be added to obtain alkaline water or alkaline natural water.
[0018]
Reference numeral 11 denotes a meter, and the meter 11 measures the timing of adding the alkaline ionized water, the timing of adding the amount of makeup water, and the timing of draining the circulating water 4 stored in the storage unit 5 .
[0019]
The drainage of the circulating water 4 is performed by the drainage pipe 12, and the overflow portion of the storage unit 5 is drained by the drainage pipe 12 together with the instruction by the meter 11.
[0020]
Reference numeral 19 denotes a fan provided in the upper portion of the cooling tower 2. The fan 19 is in contact with the filling contact material 3 and the circulating water 4, and latent heat of evaporation generated when the air and the circulating water 4 are in contact with each other. And it is set as the structure which discharge | releases the sensible heat of the said air to the exterior.
[0021]
Here, as can be understood from FIG. 1, a belt conveyor type electrode device 13 is inserted into the storage unit 5, and one end thereof is immersed in the circulating water 4.
[0022]
The belt conveyor type electrode device 13 is formed, for example, of a cathode 14 by a metal belt wound around a belt conveyor, and an anode 15 is formed adjacent to and parallel to the cathode 14 formed of the metal belt. Yes.
[0023]
Here, a direct current is applied to the cathode 14 and the anode 15. At this time, the metal belt as the cathode 14 is rotated by a belt conveyor. Thus, the rotational speed is configured to be freely controllable, and the rotational speed is controlled by the state of the circulating water 4, for example, the residual concentration of the evaporation residue.
[0024]
In addition, the energization current to the electrodes 14 and 15 can be changed, for example, in the range of several microamperes / centimeter square to several amperes / centimeter square, and the situation of the circulating water 4 is also taken into consideration for this.
[0025]
3 to 6 show specific examples of the box electrode device 20 and its installation state.
[0026]
The box-type electrode 20 includes a pair of resin electrode holding members 21 and 21, and the electrode holding member 21 has a locking portion 22 for attaching an electrode on each facing surface.
[0027]
Here, three locking portions 22 are provided, and three plate-shaped SUS electrodes are attached. Among them, the electrode installed in the central portion is an anode 15, and both sides are cathodes 14 , 14 at intervals.
[0028]
The box-type electrode device 20 configured in this way is used by being immersed in the storage unit 5 as shown in the figure.
[0029]
In this embodiment, the box-shaped electrode device 20 is composed of three electrodes, but the number of units can be changed or the number of units can be increased or decreased depending on the water quality. Furthermore, the current value and the voltage value to be passed through the box-shaped electrode device 20 are also configured to be adjusted according to the water quality depending on the situation.
[0030]
The box electrode device 20 can also be used in a so-called counter-flow type cooling tower shown in FIG. 6 and also in a cross-flow type cooling tower as shown in FIGS.
[0031]
Thus, the quality of the circulating water 4 is improved by the processing operation with such a configuration.
[0032]
Further, a scale component adheres to the surface of the wound metal belt, which is the cathode 14, and the scale component is removed by a removing device 16 provided in the vicinity of the outer end of the metal belt. Scale components are removed from the belt.
[0033]
The configuration of the removing device 16 is not limited at all, but a configuration in which the surface of the metal belt can be brushed with a brush is conceivable.
【The invention's effect】
Thus, the present invention has the above configuration.
[0034]
And if it is the maintenance management apparatus of the cooling device by this invention, adhesion of the scale in a cooling device, generation | occurrence | production of slime, generation | occurrence | production of Legionella bacteria, etc. can be reduced significantly, and also the said process is performed without using a chemical | medical agent. Therefore, it is possible to provide a circulating water maintenance and management device that is excellent in hygiene and is friendly to the global environment.
[Brief description of the drawings]
FIG. 1 is a schematic configuration explanatory diagram showing a schematic configuration of a circulating water maintenance and management device for a cooling device according to the present invention.
FIG. 2 is a schematic configuration explanatory diagram showing a schematic configuration of a circulating water maintenance management device of a conventional cooling device.
FIG. 3 is a schematic structural explanatory view (No. 1) of a box electrode device according to the present invention.
FIG. 4 is a schematic configuration explanatory diagram (No. 2) of the box electrode device according to the present invention.
FIG. 5 is an explanatory diagram (part 3) of a schematic configuration of a box electrode device according to the present invention.
FIG. 6 is an explanatory diagram (part 1) illustrating an installation state of the box electrode device according to the present invention.
FIG. 7 is an explanatory diagram (part 2) illustrating an installation state of the box electrode device according to the present invention.
FIG. 8 is an explanatory diagram (part 3) for explaining an installation state of the box electrode device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cooling device 2 Cooling tower 3 Filling contact agent 4 Circulating water 5 Storage part 6 1st pipe line 7 2nd pipe line 8 Water surface position sensor 9 Electrical conductivity meter 10 Alkali ion water tank 11 Meter 12 Drain pipe line 13 Belt conveyor type Electrode device 14 Cathode 15 Anode 16 Removal device 17 Reinforcement water 18 Alkaline ion water 19 Fan 20 Box-shaped electrode device 21 Electrode holding material 22 Locking portion

Claims (3)

It is a maintenance device for a cooling device that brings cooling medium into contact with circulating water and cools it by latent heat of evaporation generated when the air and the circulating water come into contact with each other and sensible heat of the air,
A reservoir for storing the circulating water;
Alkaline ion water tank part in which at least alkali ion water is stored, which can be injected into the storage part,
A belt conveyor type electrode device inserted into the circulating water stored in the storage unit,
In the belt conveyor type electrode device, one side electrode is formed by a metal belt wound around the belt conveyor, and one end side of the metal belt is immersed in the circulating water to form a cathode, and the other side electrode is formed by the winding. The rotating metal belt is formed adjacent to and parallel to the rotating metal belt as an anode, and the rotation speed of the metal belt wound around the belt conveyor is controlled by the residual concentration of the evaporation residue,
A brush-like removing device configured to remove the scale is formed on the other side of the metal belt serving as a cathode to which scale from circulating water in the reservoir is attached, in the vicinity of the outer end of the metal belt, and the brush The shape remover removes the scale by brushing the surface of the rotating metal belt,
A circulating water maintenance and management device for a cooling device. In the alkaline ion water tank part, electrolyzed water is stored in addition to alkaline ion water,
The circulating water maintenance management device of the cooling device according to claim 1 characterized by things. The cooling tower has a cooling medium, and a storage part for storing circulating water is provided below,
The circulating water sent from above the cooling tower is brought into contact with the cooling medium, and the circulating water is lowered and stored in a storage section provided below, and the latent heat of evaporation generated when the air and the circulating water come into contact with each other. It is a maintenance device for the circulating water of the cooling device that cools by sensible heat,
The storage part that stores the circulating water, the alkaline ion water tank part that can be injected into the storage part, the alkaline ion water tank part that stores at least alkaline ion water, and the concave part provided in the substantially central part of the storage part can be stored and stored. A box-type electrode device inserted into the circulating water,
The box-type electrode device is formed of a pair of electrode holding materials provided with several locking portions in the facing direction, and three plate-like electrodes attached between the electrode holding materials. The central plate-like electrode is set as an anode, the plate-like electrodes on both sides are set as a cathode and unitized, and the plate-like electrode is installed so as to stand in the vertical direction,
The adjustment of the current value and the voltage value energized to the box electrode device is performed according to the quality of the circulating water.
A circulating water maintenance and management device for a cooling device.

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