JP3689787B2 - Cooling water purification method and apparatus for water-cooled cooling tower - Google Patents

Description

【００３３】
表１に示すように水質が改善された。また、比較例１では、配管内部に錆が発生し、水冷式冷却塔内にシリカ等のスケールが付着し、水槽内に藻が発生して緑色であったが、実施例１では、配管内部の錆が消え、水冷式冷却塔内に付着したシリカ等のスケールが剥離し、水槽内の緑色が消えた。なお、実施例１及び比較例１のいずれにおいてもレジトネラ属菌は検出されなかった。
【００３４】
実施例２：図１に図示する、空調系循環水量 10,400 （ l／min ），一供給口７からの放出量 1,733（ l／min ）の水冷式冷却塔１（三菱樹脂株式会社製）を採用した。蓋型散水箱８，８の両側開口にトルマリン含有セラミック粒子11を約70％入れた容器12，12（26cm×28cm×５cm）を装着した。トルマリン含有セラミック粒子は、粒径10mmの実施例１と同じＭＴセラミックを１kg／放出量 400（ l／min ）量使用した。なお、冷却水流出孔12a は直径５mmの大きさにした。
【００３５】
容器12，12を挿着してから１ケ月後の冷却水について水質検査を行った。結果を表２に示す。
【００３６】
比較例２：実施例２と同じ水冷式冷却塔１（三菱樹脂株式会社製）を採用した。濃度測定制御装置（クリオートC505：商品名：栗田工業株式会社製）及び薬注装置（クリオートCT：商品名：栗田工業株式会社製）を設置し、水冷式冷却塔１の水槽９に殺菌及び藻・スケール付着防止薬品（商品名：クリサワーマルチSC：主成分：過酸化水素水：栗田工業株式会社製）を実施例２の水質検査値と同等の結果を得るために120mg ／l を越える濃度となる量を投入した。
【００３７】
投入開始から１ケ月後の冷却水について水質検査を行った。結果を表２に示す。
【００３８】
【表２】

【００３９】
薬品を投入しなくても、同等或いはそれ以上の水質改善を達成することができた。また、比較例２では、配管内部に錆が発生し、水冷式冷却塔内にシリカ等のスケールが付着し、水槽内に藻が発生して緑色であったが、実施例２では、配管内部に錆は発生せず、水冷式冷却塔内においてシリカ等のスケールの付着が抑制され、藻は発生しなかった。さらに、レジトネラ属菌も検出されなかった。
【００４０】
なお、ｐＨ値の測定はJIS K 0101-11 ・１のガラス電極法に従った。硫化物イオンの測定はJIS K 0101-23 ・５のイオンクロマトグラフ法に従った。電気伝導率の測定はJIS K 0101-12 の電気伝導度計法に従った。酸消費量（pH・4.8 ）の測定はJIS K 0101-13 ・１のＭＲ法に従った。全硬度の測定はJIS K 0101-15 ・１の滴定法に従った。アンモニウムイオンの測定はJIS K 0101-36 ・２の吸光光度法に従った。鉄の測定はJIS K 0101-60 ・２のフレーム原子吸光法に従った。硫化物イオンの測定はJIS K 0101-40 ・１の吸光光度法に従った。硫酸イオンの測定はJIS K 0101-42 ・４のイオンクロマトグラフ法に従った。イオン状シリカの測定はJIS K 0101-44 ・１のモリブデン青法に従った。レジオネラ属菌の有無は上水試験法のＷＹＯ培地培養法に従った。
【００４１】
【発明の効果】
本発明によれば、レジオネラ属菌は勿論、錆の発生やスケールの付着や藻の発生が抑制されるから、設備の耐久性が高められ、設備におけるメンテナンスを低減させることができる。また、従来の薬注処理を施す必要がないから、薬注装置や薬品濃度を検出して調整する制御装置の設置が不要となり、余分な設備費を削減することができる。
【００４２】
また、飛散する冷却水はイオン化処理にて浄化され水質が改善されているから、環境汚染を防止することができる。
【００４３】
従って、本発明の産業上利用性は非常に高いといえる。
【図面の簡単な説明】
【図１】本実施の形態１における水冷式冷却塔の内部を透視した側面図である。
【図２】図１に図示する水冷式冷却塔の冷却水浄化装置を示す斜視図である。
【図３】図２に図示する冷却水浄化装置の縦断面図である。
【図４】実施の形態２における水冷式冷却塔の内部の片側を透視した側面図である。
【図５】図４に図示する水冷式冷却塔の冷却水浄化装置を示す斜視図である。
【符号の説明】
１，２１ 水冷式冷却塔
２，２２ 強制通風ファン
３，２３ ルーバー
４，２４ 充填材
５ 温水散水槽
６，２５ 温水供給管
７，２６ 供給口
８ 矩形状蓋型散水箱
９，２７ 水槽
１０ 排出管
１１，２９ トルマリン含有セラミック粒子
１２ 容器
１２ａ 冷却水流出孔
３０ 盆型容器[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling water purification method and apparatus for a water-cooled cooling tower that cools and purifies warmed cooling water returned from a water-cooled air conditioning cooler.
[0002]
[Prior art]
As is well known, the cooling water in the water-cooled cooling tower is cooled by contacting it with the outside air, so it takes in oxides and pollutants in the atmosphere, and the water is also scattered and evaporated to add salt in the water. As the concentration increases, the pipes around the cooling tower corrode, silica adheres, algae are generated in the cooling water, and Legionella grows. A treatment for replenishing the water and replenishing the cooling water and a chemical injection process for introducing the chemical into the cooling water are performed.
[0003]
[Problems to be solved by the invention]
However, the former disposal procedure has a problem of wasting water resources because the cooling water is discarded. Also, in the latter chemical injection process, a concentration measuring device is installed in advance to prevent cooling water concentrated with chemicals by splashing / evaporation from flowing into the nearby private house and causing human damage. If it exceeds the specified concentration, it must be equipped with a control device that replenishes the cooling water and returns the concentration to a predetermined value, and there is a problem that extra equipment costs are required and the replenished cooling water is not agitated. Still, there is a problem that the cooling water has a high concentration portion, and the cooling water of this high concentration portion is scattered as water droplets.
[0004]
Accordingly, the present inventors have provided a cooling water purification method capable of preventing pipe corrosion, silica adhesion, algae generation and Legionella bacteria generation without resorting to cooling water disposal or chemical injection treatment, and Providing the device has been a technical issue, and research and experiments have been repeated to realize it. In this process, we focused on the fact that tourmaline generates negative ions due to environmental changes such as slight temperature changes, and as a result of further experiments, red rust changed to black rust due to the negative ion effect of tourmaline and water quality improvement. In addition, the above-mentioned technical problem has been achieved by obtaining remarkable knowledge that scales such as silica are dissolved and peeled, and that the generation of algae and Legionella is suppressed.
[0005]
[Means for Solving the Problems]
The technical problem can be solved by the present invention as follows.
[0006]
That is, the cooling water purification method for a water-cooled cooling tower according to the present invention generates an air flow that takes in outside air by a forced ventilation fan provided in the upper part of the water-cooled cooling tower and passes through the packing material in the tower and is water-cooled. The heated cooling water returned from the air conditioner cooler is cooled by dropping into the filler and bringing it into contact with the outside air, and the cooled cooling water is stored in a water tank provided at the lower part and water-cooled again. In the cooling water purification method for a water-cooled cooling tower for purifying cooling water in a water-cooled cooling tower to be sent to a water-cooled air-conditioning cooler, a supply port of a hot water supply pipe piped to the water-cooled air-conditioning cooler is placed above the filler A tourmaline-containing film is formed by positioning and firing a ceramic powder raw material containing tourmaline on the surface of the ceramic carrier between the supply port and the filler, apart from the supply port of the hot water supply pipe. By installing a container having a cooling water outflow hole containing tourmaline-containing ceramic particles having a diameter of 5 to 10 mm and spraying warmed cooling water discharged from the supply port into the container, it is obtained so as to pass between the tourmaline containing ceramic particles in the vessel prior to drop.
[0007]
Further, the cooling water purification apparatus for a water-cooled cooling tower according to the present invention is a packing material disposed on the side by taking outside air into the tower from the side by a forced draft fan provided at the top of the water-cooled cooling tower. The heated cooling water returned from the water-cooled air-conditioning cooler is dropped into the filler through the hot water sprinkling tank disposed above the filler. The water-cooled cooling tower purifies the cooling water in the water-cooled cooling tower which is cooled by being brought into contact with the outside air and stored in the water tank provided in the lower part and sent to the water-cooled air-conditioning cooler again In the cooling water purification apparatus, a hot water supply pipe supply port connected to a water-cooled air conditioning cooler is positioned above the hot water sprinkling tank, and the hot water sprinkling tank has a groove facing the groove of the hot water sprinkling tank. A lid-type water spray box with an open side wall is hot water It is provided over the supply port of the supply pipe, and the opening of the lid-type water spray box contains tourmaline on the surface of the ceramic carrier between the supply port and the hot water sprinkling tank, apart from the supply port of the hot water supply pipe A container with a cooling water outflow hole containing tourmaline-containing ceramic particles with a diameter of 5 to 10 mm formed by adhering and firing a ceramic powder raw material to form a tourmaline-containing film is installed from the supply port of the hot water supply pipe in which the cooling water warmed emitted by sprinkling on the container cooling water warmed said is adapted to pass between tourmaline containing ceramic particles in the vessel prior to falling into the filler is there.
[0008]
Furthermore, the cooling water purification apparatus for a water-cooled cooling tower according to the present invention includes a packing material disposed below the forced ventilation fan by taking outside air into the tower by a forced ventilation fan provided at the upper part of the water-cooled cooling tower. The warmed cooling water that has returned from the water-cooled air conditioning cooler by causing an air flow toward the upper part through the water is dropped into the filler and cooled by contacting with the outside air, and the cooled cooling water In the cooling water purification apparatus of the water-cooled cooling tower that purifies the cooling water in the water-cooled cooling tower that is stored in the water tank provided at the lower portion and sent to the water-cooled air conditioning cooler again, between the forced ventilation fan and the filler Is provided with a supply port of a hot water supply pipe for supplying warmed cooling water to the filler, and the supply port of the hot water supply pipe is positioned between the supply port and the filler from the supply port. Separate the tourmaline on the surface of the ceramic carrier A container having a cooling water outflow hole containing tourmaline-containing ceramic particles having a diameter of 5 to 10 mm formed by adhering and firing the ceramic powder raw material to form a tourmaline-containing film is provided, and the supply of the hot water supply pipe has the warmed cooling water is discharged from the mouth so as to pass between tourmaline containing ceramic particles in the vessel before the cooling water warmed said by spraying to the container falls into the filler Is.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
Embodiment 1 FIG.
[0011]
1 is a side view of the interior of the water-cooled cooling tower according to the present embodiment, FIG. 2 is a perspective view showing a cooling water purification device for the water-cooled cooling tower shown in FIG. 1, and FIG. 3 is shown in FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a cooling water purification apparatus. In these drawings, reference numeral 1 denotes a water-cooled cooling tower that employs a system in which an air flow passes substantially perpendicularly to a warmed cooling water that falls. The cooling tower 1 is provided at an upper portion, and a forced draft fan 2 that takes in outside air from the side to generate an air flow toward the upper portion, louvers 3 and 3 provided on both sides as outer walls, and inner sides of the louvers 3 and 3 The fillers 4, 4 that are placed in parallel with each other to cool the warmed cooling water that falls and comes into contact with the outside air, and the cooling water that is disposed above the fillers 4, 4 and is warmed are dispersed and filled Hot water having water sprinkling holes 5a (see FIG. 2) to be supplied to the materials 4 and 4 at the bottom A hot water supply pipe 6 that is connected to water tanks 5, 5 and a water-cooled air-conditioning cooler (not shown) that guides warmed cooling water returned from the water-cooled air-conditioning cooler to the hot water sprinkling tanks 5, 5; The hot water sprinkling tanks 5 and 5 are provided above the hot water sprinkling tanks 5 and 5, and the hot water sprinkling tanks 5 and 5 are provided in the hot water sprinkling tanks 5 and 5. 5, rectangular lid-type watering boxes 8, 8 whose side walls facing the groove 5 are open, a water tank 9 for storing cooled cooling water provided in the lower part and falling in the fillers 4, 4, 9 and a discharge pipe 10 for sending the cooling water accumulated in 9 to the water-cooled air-conditioning cooler again.
[0012]
In addition, containers 12 and 12 (see FIG. 2) filled with tourmaline-containing ceramic particles 11 (see FIG. 3) are attached to the openings of the lid-type water spray boxes 8 and 8 from both sides. Are provided with an infinite number of cooling water outflow holes 12a.
[0013]
Reference numeral 13 denotes a motor that rotates the ventilation fan 2, and reference numeral 14 denotes a fan belt that transmits the rotation of the motor 12 to the ventilation fan 2.
[0014]
The cooling water purification apparatus of the water-cooled cooling tower 1 in the present embodiment includes supply ports 7 and 7 for discharging warmed cooling water positioned above the hot water sprinkling tanks 5 and 5, and tourmaline-containing ceramic particles 11. In order to pass the warmed cooling water between the tourmaline-containing ceramic particles 11 before being dropped into the fillers 4 and 4 and cooled, the supply ports 7 and 7 are separated from the supply ports 7 and 7. And the above-mentioned containers 12 and 12 containing tourmaline-containing ceramic particles 11 mounted between the hot water sprinkling tanks 5 and 5.
[0015]
In the present embodiment, outside air is taken in from the side louvers 3 and 3 by the forced ventilation fan 2 provided at the upper part, passes through the fillers 4 and 4 arranged side by side on the louvers 3 and 3, and heads upward. An air stream is generated in the water-cooled cooling tower 1. Warmed cooling water returned from the water-cooled air conditioning cooler through the hot water supply pipe 6 is supplied from the supply ports 7 and 7 of the hot water supply pipe 6 to the lid watering boxes 8 provided in the hot water sprinkling tanks 5 and 5. 8 is released. After the heated cooling water discharged from the supply ports 7 and 7 passes between the tourmaline-containing ceramic particles 11 in the containers 12 and 12 and flows out from the cooling water outflow holes 12a to the warm water sprinkling tanks 5 and 5, The water flows through the fillers 4 and 4 through the water spray holes 5a of the hot water spray tanks 5 and 5. The warmed cooling water flowing down in the fillers 4, 4 is cooled in contact with the outside air passing through the fillers 4, 4 and collected in a water tank 9 provided in the lower part. The cooling water accumulated in the water tank 9 passes through the discharge pipe 10 and is sent again to the water-cooled air conditioning cooler.
[0016]
The particle size of the tourmaline-containing ceramic particles 11 has a diameter of 3 to 3 when considering the handling and the contact area of the cooling water when filling the container 12 provided with an infinite number of cooling water outflow holes 12a... What is necessary is just to use a 30 mm thing, More preferably, it is 5-10 mm in diameter. Further, if the tourmaline content of the tourmaline-containing ceramic particles 11 is 10 to 70% by weight, a sufficient effect can be obtained, and it is advantageous in terms of economy. Further, the tourmaline-containing ceramic particles may be formed by adhering and firing a ceramic powder raw material containing tourmaline on the surface of a ceramic carrier to form a tourmaline-containing film. MT ceramic (trade name: manufactured by Shibata Ceramics Co., Ltd.) ) May be used. When MT ceramic is used, an amount of 1 to 1.5 kg of MT ceramic may be used with respect to the discharge amount of cooling water 400 (l / min).
[0017]
In the present embodiment, since the heated cooling water is passed through the tourmaline-containing ceramic particles 11 before being dropped into the fillers 4 and 4, and the cooling water is purified by ionization treatment, It is possible to suppress the adhesion of silica and the generation of algae in the watering tanks 5 and 5 and the fillers 4 and 4, and the purified cooling water circulates, thereby suppressing the corrosion around the pipes and the adhesion of silica. In addition, the generation of algae in the cooling water can be suppressed, and the generation of Legionella can be prevented without depending on the conventional disposal treatment or chemical injection treatment.
[0018]
In addition, after passing through the tourmaline-containing ceramic particles 11 and ionizing, it is dropped into the fillers 4 and 4 and brought into contact with the outside air, so that the ionized cooling water is scattered as water droplets. It can provide an environmentally friendly cooling tower and does not use chemicals, so it does not harm the human body.
[0019]
Furthermore, since the heated cooling water is allowed to pass between the tourmaline-containing ceramic particles 11, ionization can be promoted by a temperature change.
[0020]
The container 12 may be a net bag. Moreover, if the sprinkler tank 5 is covered with a lid, evaporation of the cooling water from the sprinkler tank 5 can be prevented.
[0021]
Embodiment 2. FIG.
[0022]
4 is a side view seen through one side of the inside of the water-cooled cooling tower in the present embodiment, and FIG. 5 is a perspective view showing the cooling water purification device of the water-cooled cooling tower shown in FIG. , 21 is a cylindrical water-cooled cooling tower that employs a system in which the air flow passes through the warmed cooling water that falls, and the water-cooled cooling tower 21 is provided at the upper portion to allow outside air to flow. Forced ventilation fan 22 that draws in from the side and creates an air flow toward the upper part, louver 23 provided on the outer periphery of the lower part, and falling warmed cooling water provided below forced ventilation fan 22 are in contact with the outside air And a filler 24 that cools and cools, a warm water supply pipe 25 that guides warmed cooling water returned from a water-cooled air-conditioning cooler (not shown) to the upper side of the filler 24, a forced draft fan 22 and a filler 24 Between the two and positioned radially toward the filler 24 The supply port 26 of the heated hot water supply pipe 25, the water tank 27 for storing the cooled cooling water provided in the lower part and falling in the filler 24, and the cooling water stored in the water tank 27 are again water-cooled air-conditioning And a discharge pipe 28 to be sent to the cooler.
[0023]
A grid-shaped basin-shaped container having a cooling water outflow hole 30a in which tourmaline-containing ceramic particles 29 are placed apart from the supply port 26 between the supply port 26 and the filler 24 of the hot water supply pipe 25. 30 (see FIG. 5) is installed.
[0024]
The cooling water purification device for the water-cooled cooling tower 21 in the present embodiment is a hot water supply pipe that injects and supplies warmed cooling water positioned between the forced draft fan 22 and the filler 24 to the filler 24. 25 supply ports 26 ..., tourmaline-containing ceramic particles 29 ... and the supply ports 26 to pass warmed cooling water between the tourmaline-containing ceramic particles 29 ... before dropping into the filler 24 and cooling. And a lattice-shaped basin-shaped container 30 having innumerable cooling water outflow holes 30a containing tourmaline-containing ceramic particles 29.
[0025]
Reference numeral 31 denotes a sound deadening mat, and 32 denotes a ball tap for detecting the water level of the water tank 27.
[0026]
Also in the present embodiment, the same effect as in the first embodiment can be obtained.
[0027]
The basin container 30 has a lattice shape having an infinite number of cooling water outflow holes 30a, and the air flow passing through the filler 24 is not blocked by the basin container 30, and the basin container 30 and the filler Since there is a sufficient gap with 24, the air flow will not stagnate. Alternatively, a container having a cooling water outflow hole may be positioned for each radiation of the supply ports 26 of the hot water supply pipes 25 arranged in a radial manner, and installed in a state where the supply ports 26 are close to each other.
[0028]
【Example】
Example 1, Comparative Example 1: Water-cooled cooling tower 1 (Hitachi Cooling Co., Ltd.) having an air-conditioning system circulating water amount of 3,900 (l / min) and a discharge amount from one supply port 647 (l / min) shown in FIG. Made). Concentration measurement control device (Cleart C505: trade name: Kurita Kogyo Co., Ltd.) and chemical injection device (Cleart CT: trade name: Kurita Kogyo Co., Ltd.) are installed, sterilizing and algae in water tank 9 of water-cooled cooling tower 1 Scale adhesion prevention chemical (trade name: Chrysaw Multi S: main component: hydrogen peroxide solution: manufactured by Kurita Kogyo Co., Ltd.) was added so as to maintain a concentration of 400 to 800 mg / l (Comparative Example 1).
[0029]
A water quality test was conducted 90 days after the start of injection. The results are shown in Table 1.
[0030]
The chemical injection process in Comparative Example 1 was stopped, and containers 12 and 12 (20 cm × 22 cm × 6 cm) containing about 70% of tourmaline-containing ceramic particles 11 were attached to the openings on both sides of the lid-type water spray boxes 8 and 8. Tourmaline-containing ceramic particles 11 are MT ceramic having a particle diameter of 5 mm (trade name: manufactured by Shibata Ceramics Co., Ltd .: tourmaline particles formed by attaching and firing a ceramic powder material containing tourmaline on the surface of a ceramic carrier to form a tourmaline-containing film: 1 kg / release amount of 400 (l / min) amount of tourmaline powder (30 to 70% by weight) in the film was used. The cooling water outflow hole 12a has a diameter of 3 mm so that the particles 11 do not flow out (Example 1).
[0031]
A water quality test was performed on the cooling water three months after the containers 12 and 12 were inserted. The results are shown in Table 1.
[0032]
[Table 1]

[0033]
As shown in Table 1, the water quality was improved. Further, in Comparative Example 1, rust was generated inside the pipe, scales such as silica were adhered in the water-cooled cooling tower, and algae were generated in the water tank. The rust disappeared, the scales such as silica adhered to the water-cooled cooling tower peeled off, and the green color in the water tank disappeared. In both Example 1 and Comparative Example 1, no Reginella spp. Were detected.
[0034]
Example 2: A water-cooled cooling tower 1 (manufactured by Mitsubishi Plastics Co., Ltd.) having an air-conditioning system circulating water amount of 10,400 (l / min) and a discharge amount of 1,733 (l / min) from one supply port 7 as shown in FIG. did. Containers 12 and 12 (26 cm × 28 cm × 5 cm) containing about 70% of tourmaline-containing ceramic particles 11 were attached to the openings on both sides of the lid-type watering boxes 8 and 8. As the tourmaline-containing ceramic particles, the same MT ceramic as in Example 1 having a particle diameter of 10 mm was used in an amount of 1 kg / discharge amount 400 (l / min). The cooling water outlet hole 12a has a diameter of 5 mm.
[0035]
A water quality test was performed on the cooling water one month after the containers 12 and 12 were inserted. The results are shown in Table 2.
[0036]
Comparative Example 2: The same water-cooled cooling tower 1 (Mitsubishi Resin Co., Ltd.) as in Example 2 was employed. Concentration measurement control device (Cleart C505: trade name: Kurita Kogyo Co., Ltd.) and chemical injection device (Cleart CT: trade name: Kurita Kogyo Co., Ltd.) are installed. -Scale adhesion prevention chemical (trade name: Chrysaw Multi SC: main component: hydrogen peroxide water: manufactured by Kurita Kogyo Co., Ltd.) in order to obtain a result equivalent to the water quality test value of Example 2, a concentration exceeding 120 mg / l The amount to become was thrown.
[0037]
A water quality test was conducted on the cooling water one month after the start of charging. The results are shown in Table 2.
[0038]
[Table 2]

[0039]
Even if chemicals were not added, the water quality improvement was equivalent or better. Further, in Comparative Example 2, rust was generated inside the pipe, scale such as silica adhered to the water-cooled cooling tower, and algae was generated in the water tank. No rust was generated on the surface of the water-cooled cooling tower, and adhesion of scales such as silica was suppressed, and no algae were generated. In addition, no Reginella spp. Were detected.
[0040]
The pH value was measured according to the glass electrode method of JIS K 0101-11 · 1. The sulfide ion was measured in accordance with the ion chromatographic method of JIS K 0101-23-5. The electrical conductivity was measured according to the electrical conductivity meter method of JIS K 0101-12. The acid consumption (pH 4.8) was measured according to the MR method of JIS K 0101-13. The total hardness was measured according to the titration method of JIS K 0101-15 · 1. The ammonium ion was measured according to the spectrophotometric method of JIS K 0101-36. The measurement of iron followed the flame atomic absorption method of JIS K 0101-60 · 2. The sulfide ion was measured according to the spectrophotometric method of JIS K 0101-40 · 1. The measurement of sulfate ion followed the ion chromatograph method of JIS K 0101-42 · 4. The measurement of ionic silica followed the molybdenum blue method of JIS K 0101-44. The presence or absence of Legionella was in accordance with the WYO medium culture method of the water test.
[0041]
【The invention's effect】
According to the present invention, the generation of rust, scale adhesion, and algae are suppressed as well as Legionella spp., So that the durability of the equipment can be improved and maintenance in the equipment can be reduced. In addition, since it is not necessary to perform conventional chemical injection processing, it is not necessary to install a chemical injection device or a control device that detects and adjusts the chemical concentration, thereby reducing extra equipment costs.
[0042]
Moreover, since the scattered cooling water is purified by ionization treatment and the water quality is improved, environmental pollution can be prevented.
[0043]
Therefore, it can be said that the industrial applicability of the present invention is very high.
[Brief description of the drawings]
FIG. 1 is a side view of the interior of a water-cooled cooling tower according to a first embodiment seen through.
FIG. 2 is a perspective view showing a cooling water purification device of the water-cooled cooling tower shown in FIG.
FIG. 3 is a longitudinal sectional view of the cooling water purification apparatus shown in FIG.
4 is a side view seen through one side of a water-cooled cooling tower in Embodiment 2. FIG.
FIG. 5 is a perspective view showing a cooling water purification device of the water-cooled cooling tower shown in FIG.
[Explanation of symbols]
1,21 Water-cooled cooling towers 2,22 Forced ventilation fan 3,23 Louver 4,24 Filler 5 Hot water sprinkling tank 6,25 Hot water supply pipe 7,26 Supply port 8 Rectangular lid-type water sprinkling box 9,27 Water tank 10 Discharge Tubes 11, 29 Tourmaline-containing ceramic particles 12 Container 12a Cooling water outflow hole 30 Basin type container

Claims (3)

The forced cooling fan provided in the upper part of the water-cooled cooling tower takes in outside air to generate an air flow that passes through the packing material in the tower, and warmed cooling water returned from the water-cooled air-conditioning cooler is supplied to the packing material. Water cooling that purifies cooling water in a water-cooled cooling tower that is cooled by being dropped into contact with the outside air, and collecting the cooled cooling water in a water tank provided in the lower part and sending it again to a water-cooled air-conditioning cooler In the cooling water purification method for a water-cooled cooling tower, a supply port of a hot water supply pipe piped to the water-cooled air conditioning cooler is positioned above the filler and is separated from a supply port of the hot water supply pipe and the supply port Place tourmaline-containing ceramic particles with a diameter of 5-10 mm formed by attaching and firing a ceramic powder raw material containing tourmaline on the surface of the ceramic carrier between the filler and forming a tourmaline-containing film. A tourmaline-containing ceramic in the container before being dropped into the filler by sprinkling warmed cooling water discharged from the supply port to the container by mounting a container having a cooling water outflow hole. cooling water purifying method of the water-cooled cooling tower, characterized in that so as to pass between the particles. A forced-air fan installed at the top of the water-cooled cooling tower takes outside air into the tower from the side, passes through the packing disposed on the side, and generates an air flow toward the top, while also cooling with water-cooled air conditioning. The cooled cooling water returned from the machine is cooled by dropping it into the filler through a hot water sprinkling tank disposed above the filler and bringing it into contact with the outside air. In a cooling water purification apparatus for a water-cooled cooling tower that purifies cooling water in a water-cooled cooling tower that accumulates water in a water tank provided in the lower part and sends it to a water-cooled air conditioning cooler again, a water-cooled type is disposed above the hot water sprinkling tank. The supply port of the hot water supply pipe connected to the air-conditioning cooler is positioned, and a lid-type water spray box with a side wall facing the groove of the hot water spray tank is opened in the hot water supply pipe. It is provided to cover the lid-type watering box The tourmaline-containing film is formed by attaching and firing a ceramic powder raw material containing tourmaline on the surface of the ceramic carrier between the supply port and the hot water sprinkling tank, away from the supply port of the hot water supply pipe. A container having a cooling water outflow hole containing tourmaline-containing ceramic particles having a diameter of 5 to 10 mm is attached, and the heated cooling water discharged from the supply port of the hot water supply pipe is sprinkled into the container to be warmed. A cooling water purifier for a water-cooled cooling tower, wherein the cooling water is allowed to pass between the tourmaline-containing ceramic particles in the vessel before falling into the filler. Water-cooled air-conditioning cooling by taking outside air into the tower by a forced ventilation fan installed in the upper part of the water-cooled cooling tower and passing the filler disposed below the forced-air ventilation fan to generate an air flow toward the upper part. The warmed cooling water returned from the machine is dropped into the filler and brought into contact with the outside air to cool it, and the cooled cooling water is stored in a water tank provided at the lower part to be a water-cooled air conditioning cooler again. In a cooling water purification apparatus for a water-cooled cooling tower that purifies cooling water in a water-cooled cooling tower to be sent, a hot water supply pipe that supplies warmed cooling water to the filler between the forced draft fan and the filler A supply port is positioned toward the filler, and a ceramic powder material containing tourmaline is attached to the surface of the ceramic carrier between the supply port of the hot water supply pipe and the filler, away from the supply port. Baked tormari A container having a cooling water outflow hole containing tourmaline-containing ceramic particles having a diameter of 5 to 10 mm formed with a containing film is attached, and the warmed cooling water discharged from the supply port of the hot water supply pipe is A cooling water purification apparatus for a water-cooled cooling tower, wherein the cooling water sprayed into the container is allowed to pass between the tourmaline-containing ceramic particles in the container before falling into the filler. .

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