JPH07232168A - Treatment of water - Google Patents

Treatment of water

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Publication number
JPH07232168A
JPH07232168A JP6024467A JP2446794A JPH07232168A JP H07232168 A JPH07232168 A JP H07232168A JP 6024467 A JP6024467 A JP 6024467A JP 2446794 A JP2446794 A JP 2446794A JP H07232168 A JPH07232168 A JP H07232168A
Authority
JP
Japan
Prior art keywords
resin
fiber
water
cooling water
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6024467A
Other languages
Japanese (ja)
Other versions
JP2660157B2 (en
Inventor
Toshio Hashino
利雄 橋野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJITA CHIMAO
Original Assignee
FUJITA CHIMAO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FUJITA CHIMAO filed Critical FUJITA CHIMAO
Priority to JP6024467A priority Critical patent/JP2660157B2/en
Publication of JPH07232168A publication Critical patent/JPH07232168A/en
Application granted granted Critical
Publication of JP2660157B2 publication Critical patent/JP2660157B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Treatment Of Water By Ion Exchange (AREA)

Abstract

PURPOSE:To provide a space saving type device and to prevent not only scale trouble but also corrosion trouble by keeping an ion concn. of a cooling water less than a fixed value by immersing a resin or a fiber having an ion exchange function in a cooling water pit of a cleaning tower. CONSTITUTION:In a deionizing method for a circulating water of the cleaning tower by using the resin or the fiber having the ion exchange function, the ion concn. of the cooling water is kept less than a fixed value by immersing the resin or the fiber in the cooling water pit B of the cleaning tower. In this case, as for the resin or the fiber having the ion exchange function, when the resin is used, since grain size of the resin is small, the stitch of a net-like matter 1 through which the resin is not allowed to leak out is properly selected while considering a grain size distribution of the resin, and when the fiber is used, the fiber worked to strip-like is used to increase a contact area with water as much as possible while considering the regeneration or the exchange for discard of the resin or the fiber.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、冷却水系のスケ−ル・
腐食障害を防止する方法、詳しくはク−リングタワ−の
循環水をイオン交換機能を有する樹脂又は繊維により処
理することによって冷却水のイオン濃度を一定値以下に
保持し、冷却水系のスケ−ル・腐食障害を防止する方法
に関する。
BACKGROUND OF THE INVENTION The present invention relates to a cooling water scale,
A method of preventing corrosion damage, more specifically, the circulating water of the cooling tower is treated with a resin or fiber having an ion exchange function to keep the ion concentration of the cooling water below a certain value, and the cooling water scale. It relates to a method of preventing corrosion damage.

【0002】[0002]

【従来の技術】ク−リングタワ−は、種々の産業やビル
の冷房に至るまで極めて広汎な分野にわたって使用され
ている。その補給水源としては、従来は地下水が利用さ
れていたが、地下水の取水制限により現在では市水の利
用が一般的である。市水は高価且つ貴重な水資源故、一
過式で使用するという例は極めて少なく、循環水の濃縮
係数を4〜5倍に上昇させる高濃縮運転が一般に行われ
ている。
2. Description of the Related Art Cooling towers are used in a very wide range of fields including various industries and cooling of buildings. Conventionally, groundwater was used as the makeup water source, but nowadays it is generally used due to restrictions on groundwater intake. Since city water is an expensive and valuable water resource, it is rarely used in a transient system, and high-concentration operation for increasing the concentration factor of circulating water by 4 to 5 times is generally performed.

【0003】しかしながら、このような高濃縮運転を行
った場合、補給水から持ち込まれる硬度成分(カルシウ
ムイオンやマグネシウムイオン)や腐食成分(塩素イオ
ンや硫酸イオン)が冷却水系にて濃縮される結果、スケ
−ル障害(冷却器の伝熱面や冷却水の導管への炭酸カル
シウムスケ−ルの析出による熱効率の低下や管路の閉
塞)や腐食障害(冷却水系を構成する装置材料の腐食)
を招く。更には、ク−リングタワ−から高塩濃度の水滴
が飛散するので都市部においては周辺環境の悪化を招く
ことになる。
However, when such a high concentration operation is performed, the hardness components (calcium ions and magnesium ions) and corrosion components (chlorine ions and sulfate ions) brought in from the makeup water are concentrated in the cooling water system. Scale failure (decrease in thermal efficiency and blockage of pipe due to precipitation of calcium carbonate scale on heat transfer surface of cooling device or cooling water conduit) and corrosion failure (corrosion of equipment material constituting cooling water system)
Invite. Furthermore, since water droplets with a high salt concentration are scattered from the cooling tower, the surrounding environment is deteriorated in urban areas.

【0004】スケ−ル障害防止策としては、冷却水ピッ
トの滞留水又は補給水の少なくとも一部をH型カチオン
交換樹脂を充填したカラムに通して水中の硬度成分を除
くと共に、H+ イオンを溶出させ循環水のpHをスケ−
ルの生成しない範囲に調節する方法(特公昭55−28
759号)や補給水の全量をNa型カチオン交換繊維を
配設したカラム又は槽に通して水中の硬度成分を除く、
いわゆるイオン交換反応を利用した軟水化法(特開昭6
3−283798号)が提案されている。
As a measure for preventing scale failure, at least a part of the retained water or makeup water in the cooling water pit is passed through a column filled with an H-type cation exchange resin to remove hardness components in the water and to remove H + ions. Scale out the pH of the circulating water by eluting
Method of adjusting to a range that does not generate
No. 759) or makeup water is passed through a column or tank in which Na-type cation exchange fibers are arranged to remove hardness components in water.
A water softening method utilizing a so-called ion exchange reaction (Japanese Patent Laid-Open Publication No. Sho 6-96)
3-283798) has been proposed.

【0005】しかしながら、これらの方法は、循環水系
から腐食成分を系外に排除するものではないため、スケ
−ル障害の発生を防止することはできても腐食障害を防
止する策にはなり得ない。また当然のことながら高塩濃
度の水滴が飛散することによる環境問題の解決策にはな
り得ない。一方、装置的には両方法ともイオン交換機能
を持つ樹脂又は繊維を充填又は配設したカラム又は槽、
すなわちク−リングタワ−及びその補機類とは別にイオ
ン交換処理装置を設けなければならずそのためのスペ−
スを確保しなければならない。
However, since these methods do not remove the corrosive components from the circulating water system to the outside of the system, they can prevent the scale failure but can be a measure to prevent the corrosion failure. Absent. In addition, as a matter of course, it cannot be a solution to the environmental problem caused by the scattering of high-salt water droplets. On the other hand, in terms of equipment, both methods are columns or tanks packed or arranged with a resin or fiber having an ion exchange function,
That is, an ion exchange treatment device must be provided separately from the cooling tower and its accessories, and a space for that must be provided.
Must secure the space.

【0006】腐食障害を防止する策として、冷却水に薬
品を添加する方法や循環水中の腐食成分となるイオンの
電気的・磁界的状態を変化させる電磁気を利用した方法
(スケ−ル障害防止策を兼ねるものもある)が提案され
ているが、イオン交換反応を利用した方法はない。
As a measure for preventing corrosion damage, a method of adding a chemical to cooling water or a method of utilizing electromagnetic waves to change the electric / magnetic state of ions which are corrosion components in circulating water (scale failure prevention measure) There is no method utilizing an ion exchange reaction.

【0007】[0007]

【発明が解決しようとする課題】本発明は、従来のイオ
ン交換反応を利用した方法の課題を解決する、すなわ
ち、省スペ−ス型の装置でもってスケ−ル障害のみなら
ず腐食障害をも防止する策(勿論、高塩濃度の水滴が飛
散することによる環境問題の解決策も)を提供すること
を目的とする。
DISCLOSURE OF THE INVENTION The present invention solves the problems of the conventional method utilizing the ion exchange reaction, that is, not only the scale failure but also the corrosion failure can be achieved by the space saving type apparatus. The purpose is to provide a preventive measure (of course, a solution to an environmental problem caused by scattering of high-salt water droplets).

【0008】[0008]

【課題を解決するための手段】本発明者は、日本冷凍空
調工業会が「冷却水の適正な水質管理基準」として定め
ている冷却水基準値がク−リングタワ−の中で補給水が
濃縮されることを前提として定められていること(冷却
水基準値>補給水基準値。因に、塩素イオンは、補給水
基準値が50mgCl- /lであるのに対し冷却水基準
値は200mgCl- /lである)、日本では通常補給
水として使用される市水の水質が該補給水基準値を下回
っていること、従って補給水から持ち込まれる基準値が
定められている成分が濃縮される結果該冷却水基準値を
越えることになる量(濃度ではない)を該濃縮に要する
時間内に系外に排出してやればよい(該成分を連続的に
系外に排出する必要はない)こと、また一般にイオン交
換処理は、イオン交換反応における平衡を脱イオン反応
側にずらすためイオン交換機能を有する樹脂又は繊維は
カラムや槽に充填又は配設し該カラム又は該槽に通水す
る方式(動的イオン交換又はカラム式イオン交換とい
う)にて行われるが、ク−リングタワ−の内部空間では
補給水に比し極めて大量の循環水が流下しておりク−リ
ングタワ−自身をカラムと考えればよいことに気づき本
発明を完成するに至ったものである。
Means for Solving the Problems The present inventor has found that the cooling water standard value that the Japan Refrigeration and Air Conditioning Industry Association has established as "appropriate water quality management standard for cooling water" is concentrated in makeup water in the cooling tower. is the thing defined that are (coolant reference value> makeup water reference value factor assumption, chloride ions, makeup water reference value 50mgCl -. / l coolant reference value while it is in 200MgCl - / L), the quality of city water that is normally used as makeup water in Japan is lower than the makeup water standard value, and as a result, the components for which the standard value to be brought in from makeup water is determined are concentrated. The amount (not the concentration) that exceeds the standard value of the cooling water may be discharged out of the system within the time required for the concentration (the component does not have to be continuously discharged out of the system). Generally, ion exchange treatment Resin or fiber having an ion exchange function to shift the equilibrium in the exchange reaction to the deionization reaction side is packed or arranged in a column or tank and water is passed through the column or tank (dynamic ion exchange or column ion exchange). However, in the inner space of the cooling tower, an extremely large amount of circulating water is flowing down as compared with the makeup water, and it is sufficient to consider the cooling tower itself as a column to complete the present invention. It came to.

【0009】すなわち本発明は、ク−リングタワ−の循
環水をイオン交換機能を有する樹脂又は繊維により脱イ
オン処理する方法であって、該樹脂又は該繊維をク−リ
ングタワ−の冷却水ピットに浸漬することによって冷却
水のイオン濃度を一定値以下に保持することを特徴とす
る。
That is, the present invention relates to a method of deionizing circulating water of a cooling tower with a resin or fiber having an ion exchange function, the resin or fiber being immersed in a cooling water pit of the cooling tower. By doing so, the ion concentration of the cooling water is kept below a certain value.

【0010】ここで、イオン交換機能を有する樹脂又は
繊維は、該樹脂又は該繊維の(再生又は廃棄のための)
交換を考慮し(循環ポンプにて冷却水系全体に拡散しな
いように一纏めにしておくという意)、下記の態様のも
のにて冷却水ピットに浸漬される。
Here, the resin or fiber having an ion exchange function is the resin or fiber (for regeneration or disposal) of the resin or fiber.
Considering the replacement (meaning that they are collected together by a circulation pump so as not to diffuse into the entire cooling water system), they are immersed in the cooling water pit in the following manner.

【0011】(1)樹脂の場合:樹脂の粒径が小さい
(粒度分布:16〜50メッシュ)のでネット様物(そ
の編み目は、樹脂の粒度分布を考慮し樹脂が漏れ出ない
程度のものを適宜選定すればよい。一般には60メッシ
ュで充分)の中に収納したものを用いる。
(1) In the case of resin: Since the particle size of the resin is small (particle size distribution: 16 to 50 mesh), a net-like material (the stitches of which the resin does not leak in consideration of the particle size distribution of the resin) It may be selected appropriately. Generally, 60 mesh is enough).

【0012】(2)繊維の場合:水との接触面積をでき
るだけ大きくするために短冊様物に加工したものを用い
る。更に、該繊維の加工形態としては紐状物にしてもよ
い(水との接触面積をできるだけ大きくするのがその目
的故、その目的が達成されるものであれば製造コストを
判断因子として適宜選択すれば良い)。
(2) In the case of fiber: A strip-shaped product is used in order to maximize the contact area with water. Further, the processing form of the fiber may be a string-like object (the purpose is to make the contact area with water as large as possible, and if the purpose is achieved, the manufacturing cost is appropriately selected as a judgment factor. Do it).

【0013】尚、ク−リングタワ−の冷却水ピットは、
少なくとも循環水ポンプが空気を吸い込まない程度の容
量、すなわち循環水の滞留時間として数分程度を確保す
れば充分であり、この滞留時間は、イオン交換のための
反応時間としても充分なものである(ここで、冷却水ピ
ットに投入すべき該樹脂又は該繊維の量は、冷却水か
ら単位時間内、例えば一日間に除去しなければならない
イオンの総量、該樹脂又は該繊維の交換容量−カラム
式のように貫流点におけるイオンの漏出を考慮する必要
がない分、交換容量を有効に使い得る−、及び該樹脂
又は該繊維の(再生又は廃棄のための)交換頻度−実際
の交換時期は、循環水の導電率が所定の値以上になった
時点にて交換すればよい。因に、日本冷凍空調工業会が
「冷却水の適正な水質管理基準」として定めている冷却
水基準値は、800μS/cm以下である。従って、所
定の値としては、750μS/cm程度にしておけばよ
い。−を考慮して適宜設定すればよい。また、交換容量
が飽和したイオン交換機能を有する樹脂又は繊維は、配
設場所より取り出し、常法に従って再生してもよいし、
また廃棄してもよい。)。
The cooling water pit of the cooling tower is
It is sufficient to secure at least a capacity such that the circulating water pump does not suck air, that is, a circulating water retention time of several minutes, and this retention time is also sufficient as a reaction time for ion exchange. (Here, the amount of the resin or the fiber to be introduced into the cooling water pit is the total amount of ions that must be removed from the cooling water within a unit time, for example, in one day, the exchange capacity of the resin or the fiber-column. Since it is not necessary to consider the leakage of ions at the flow-through point as in the formula, the exchange capacity can be effectively used-and the exchange frequency (for regeneration or disposal) of the resin or the fiber-the actual exchange time is However, the circulating water should be replaced when the conductivity of the circulating water exceeds a specified value.The cooling water standard value that the Japan Refrigeration and Air Conditioning Industry Association has established as "appropriate water quality control standard for cooling water" is , 800 μS Therefore, the predetermined value may be set to about 750 μS / cm, and may be appropriately set in consideration of −, and a resin or fiber having an ion exchange function with a saturated exchange capacity may be used. , You may take it out from the place of installation and regenerate it according to the usual method,
It may be discarded. ).

【0014】更に、冷却水ピット保有水を攪拌(攪拌
機,散気管等を設置又は循環ポンプの吐出水の一部を冷
却水ピットに帰還させる)するのが好ましい(イオン交
換反応における平衡を脱イオン反応側にずらす効果があ
るため)。
Further, it is preferable to stir the water held in the cooling water pit (install a stirrer, an air diffuser, etc. or return a part of the water discharged from the circulation pump to the cooling water pit) (deionize the equilibrium in the ion exchange reaction) Because it has the effect of shifting to the reaction side).

【0015】本発明において、イオン交換機能を有する
樹脂又は繊維の(ク−リングタワ−内の)配設場所は、
冷却水ピットに限定されるものではない。
In the present invention, the installation location (in the cooling tower) of the resin or fiber having an ion exchange function is
It is not limited to the cooling water pit.

【0016】通常、ク−リングタワ−の充填層下端と冷
却水ピットの液面との間には循環水との間で熱交換を行
わせるための空気の流入部として一定の高さを有する空
間が設けられており、その空間には、ク−リングタワ−
上部から冷却水ピットに向かって塔断面積当り数〜数十
m3/hr (カラム式の線速度と同程度である)の循環水が
ほぼ均一な流量密度で流下しているので、この空間も又
イオン交換機能を有する樹脂又は繊維の配設場所として
適当である。
Usually, a space having a certain height as an inflow portion of air for performing heat exchange with circulating water between the lower end of the packed bed of the cooling tower and the liquid surface of the cooling water pit. Is provided, and in that space there is a cooling tower.
From the upper part to the cooling water pit
Since the circulating water of m 3 / hr (which is about the same as the linear velocity of the column type) flows down with a nearly uniform flow density, this space is also suitable as a place for arranging the resin or fiber having an ion exchange function. Is.

【0017】但し、脱イオン被処理水は流下水故、イオ
ン交換機能を有する樹脂又は繊維を該流下水に有効に接
触させる工夫が必要となる。この観点より、下記の態様
にて配設することが好ましい。
However, since the deionized water to be treated is flowing water, it is necessary to devise a means for effectively contacting the resin or fiber having an ion exchange function with the flowing water. From this viewpoint, it is preferable to arrange in the following modes.

【0018】(1) 樹脂の場合: 1) 該樹脂の表面を脱イオン被処理水ができるだけ均
一に流下せしめるべく該樹脂をその中に収納した複数個
のネット様物を該空間に簾状に垂らす(ネット様物は、
できるだけ多くする、すなわち、1個当りの収納樹脂量
を少なくする方が良い。垂らすための手段としては、該
ネット様物が流下水と平行になるようにするものであれ
ば特に限定されない。例示すれば、ク−リングタワ−の
充填層下端に流下水に直交して複数のお互いが平行する
ビ−ムを渡し、該ネット様物の一端と該ビ−ムとを紐状
物で連結する等である)。
(1) In the case of resin: 1) In order to make the surface of the resin flow down the deionized water to be treated as uniformly as possible, a plurality of net-like objects having the resin contained therein are formed into a blind shape in the space. Hang down
It is better to increase the amount as much as possible, that is, to reduce the amount of resin stored in each piece. The hanging means is not particularly limited as long as the net-like material is parallel to the flowing water. For example, a plurality of beams orthogonal to the flowing water and parallel to each other are passed to the lower end of the packed bed of the cooling tower, and one end of the net-like object and the beam are connected by a string-like object. Etc.).

【0019】2) 透水性を有する底面を有する皿様の
容器の中に収納し、その結果形成される該樹脂の充填層
でもって脱イオン被処理水をろ過するごとく接触させ
る。ここで、透水性を有する材料としては、樹脂を通さ
ないものであって通水抵抗が余り大きくないもの(大き
いと脱イオン被処理水の大半が該樹脂の充填層を通過せ
ずオ−バ−フロ−する方が多くなってしまうから)であ
れば特に限定されない−イオン交換カラムやろ過器のス
トレ−ナ−や素焼きの板が代表的なものとして例示され
る。該容器は、前記の空間内の適当な位置に定法に従っ
て該樹脂の充填層が流下水と直交するように置けばよ
い。
2) It is housed in a dish-like container having a water-permeable bottom surface, and the resulting deionized water is brought into contact with the resin-filled layer as if it were filtered. Here, as a material having water permeability, a material that does not allow resin to pass therethrough and water resistance is not so large (if it is large, most of the deionized water to be treated does not pass through the packed bed of the resin and is over-heated). It is not particularly limited as long as it is increased (the more it is flown). The ion-exchange column, the strainer of the filter, and the unglazed plate are exemplified as typical ones. The container may be placed at an appropriate position in the space so that the packed layer of the resin is orthogonal to the flowing water according to a standard method.

【0020】(2) 繊維の場合: 1) 短冊様に加工された複数本の該繊維を簾状に垂ら
す(具体的な配設態様は、上記(1)−1)の樹脂と同
様。ネット様物を短冊様に加工された繊維と読み替えれ
ばよい)。尚、該繊維の加工形態としては紐状物にして
もよい(水との接触面積をできるだけ大きくするのがそ
の目的故、その目的が達成されるものであれば製造コス
トを判断因子として適宜選択すれば良い)。
(2) In the case of fiber: 1) A plurality of strip-shaped fibers are draped in a blind shape (the specific arrangement is the same as the resin in (1) -1). The net-like thing should be read as a fiber processed into a strip). The processing form of the fiber may be a string-like object (the purpose is to make the contact area with water as large as possible, and if the purpose is achieved, the manufacturing cost is appropriately selected as a judgment factor. Do it).

【0021】2) 該繊維を含む不織布を、上記(1)
−2)の容器に充填された樹脂層に相当するもの(布団
様物)に加工すればよい(容器とは、該容器のようにあ
る形をなしたものという意味である)。
2) A non-woven fabric containing the fiber is prepared according to the above (1).
The material corresponding to the resin layer filled in the container (-2) (futon-like material) may be processed (the container means a container having a certain shape like the container).

【0022】以下、本発明を図面により詳細に説明す
る。
The present invention will be described in detail below with reference to the drawings.

【0023】図6は、一般的なク−リングタワ−におけ
る水の流れを示した線図である。ここで、符号Tはク−
リングタワ−、Bは冷却水ピット、Prは循環ポンプ、
Cは熱交換器、Qrは循環水、Nは散水用パイプ、Pm
は充填材の層、Lはル−バ、Sは空間、Fはファン、Q
mは補給水、をそれぞれ指している。
FIG. 6 is a diagram showing the flow of water in a typical cooling tower. Here, the code T is
Ring tower, B is cooling water pit, Pr is circulation pump,
C is a heat exchanger, Qr is circulating water, N is a sprinkling pipe, Pm
Is a filler layer, L is a louver, S is a space, F is a fan, Q
m is make-up water, respectively.

【0024】熱交換器:Cにて仕事をした(熱交換器に
冷熱を供給し、その結果として自身は昇温される)循環
水は、循環ポンプ:Prによってク−リングタワ−:T
に帰還せしめられ、散水用パイプ:Nより充填材の層:
Pmへ散水され、ファン:Fにてル−バ:Lを通り、空
間:Sに流入し、充填材の層:Pmの中を上昇する空気
と接触せしめられ、冷却される。この空気との熱交換は
解放系で行われるため、蒸発や水滴飛散にて循環水量の
約1%が失われてゆく。通常、その損失に相当する水量
の水が系外から補給水:Qmとして、冷却水ピット:B
に補給される。
Heat exchanger: The circulating water that worked in C (cooling heat is supplied to the heat exchanger and as a result, itself is heated) is circulated pump: Pr, cooling water: T
Returned to the sprinkler pipe: From N: Filler layer:
It is sprinkled on Pm, passed through a louver: L with a fan: F, flows into a space: S, is brought into contact with air rising in a layer of a packing material: Pm, and is cooled. Since this heat exchange with the air is performed in an open system, about 1% of the circulating water amount is lost due to evaporation and water droplet scattering. Normally, the amount of water corresponding to the loss is supplied from outside the system as makeup water: Qm, and the cooling water pit: B
Will be replenished.

【0025】ここで、定期的にク−リングタワ−を含む
冷却系の保有水をブロ−し、新水と交換(補給水を用い
る)しない限り、循環水中に補給水:Qmの成分が濃縮
していくことになる(従来は、その対策−しかしスケ−
ル生成成分の除去しかできていない−として、冷却水ピ
ットの滞留水又は補給水の少なくとも一部を(ク−リン
グタワ−を含む冷却系とは別に設けた)H型カチオン交
換樹脂を充填したカラムに通して水中の硬度成分を除く
と共に、H+ イオンを溶出させ循環水のpHをスケ−ル
の生成しない範囲に調節したり(特公昭55−2875
9号)、補給水の全量を(ク−リングタワ−を含む冷却
系とは別に設けた)Na型カチオン交換繊維を配設した
カラム又は槽に通して水中の硬度成分を除いたり(特開
昭63−283798号)していたわけである)。
Here, unless the retained water in the cooling system including the cooling tower is blown periodically and replaced with fresh water (using makeup water), the makeup water: Qm component is concentrated in the circulating water. (The conventional approach is to take measures-but not scale-
A column in which at least a part of the retained water or makeup water in the cooling water pit is provided with an H-type cation exchange resin (provided separately from the cooling system including the cooling tower), since only the components that have been produced can be removed. The hardness component in the water is removed through the water, and H + ions are eluted to adjust the pH of the circulating water to a range where scale is not generated (Japanese Patent Publication No. 55-2875).
No. 9), the total amount of the makeup water is passed through a column or tank provided with Na-type cation exchange fibers (provided separately from the cooling system including the cooling tower) to remove hardness components in the water (Japanese Patent Laid-Open Publication No. Sho. 63-283798)).

【0026】[0026]

【実施例】本願発明では、イオン交換機能を有する樹脂
又は繊維(陽イオンと陰イオンの両成分が除去対象であ
る)をク−リングタワ−の内部に配設し、ク−リングタ
ワ−の内部を流下する循環水からスケ−ル生成成分と腐
食成分の両成分を除く(H型陽イオン交換樹脂及びOH
型陰イオン交換樹脂を使用した場合の反応を、Ca2+
Cl- をそれぞれの代表成分として以下に示した)。 2R−H + Ca2+ → R−Ca−R + 2H+ R−OH + Cl- → R−Cl + OH- 2H+ + OH- → H2
EXAMPLES In the present invention, a resin or fiber having an ion exchange function (both cation and anion components are to be removed) is arranged inside the cooling tower, and the inside of the cooling tower is Both the scale-forming component and the corrosive component are removed from the circulating water flowing down (H-type cation exchange resin and OH
The reaction using the type anion exchange resin is shown below with Ca 2+ and Cl as the respective representative components). 2R-H + Ca 2+ → R -Ca-R + 2H + R-OH + Cl - → R-Cl + OH - 2H + + OH - → H 2 O

【0027】本願発明では、イオン交換機能を有する樹
脂又は繊維をク−リングタワ−の内部のどこにどの
ような形態で配設するかによって態様が異なる(以下、
冷却能力が60冷却トンのク−リングタワ−(径:2,
000mm×高さ:2,546mm、循環水量:46.
8m3/hr、冷却水ピットの容量:0.44m3 、空
間:Sの高さ:500mm。従って、塔の断面積当たり
の流下水量は14.9m3 /m2 ・hr、冷却水ピット
の滞留時間は、0.56min.)に適用した場合を例
に説明する)。
In the present invention, the mode differs depending on where and in what form the resin or fiber having an ion exchange function is arranged inside the cooling tower (hereinafter,
Cooling tower with a cooling capacity of 60 cooling tons (diameter: 2,
000 mm x height: 2,546 mm, circulating water amount: 46.
8 m 3 / hr, capacity of cooling water pit: 0.44 m 3 , space: height of S: 500 mm. Therefore, the amount of flowing water per cross-sectional area of the tower was 14.9 m 3 / m 2 · hr, and the residence time of the cooling water pit was 0.56 min. ) Will be described as an example when applied to).

【0028】実施例−1(図1参照) イオン交換樹脂(ピュロライト社の商品名:MB59V
C−交換容量がそれぞれ1.0eq/lの強酸性陽イオ
ン交換樹脂と弱塩基性陰イオン交換樹脂を等容量混合し
たもの)をポリプロピレンの不織布(網目が60メッシ
ュ)の袋:1(樹脂の充填量:10リットル)に入れた
もの5袋を冷却水ピット:Bに浸漬した(放り込んだ)
ものである。
Example 1 (See FIG. 1) Ion exchange resin (Purolite's trade name: MB59V)
A bag of polypropylene non-woven fabric (mesh of 60 mesh) of C-exchange capacity of 1.0 eq / l and a mixture of strong acid cation exchange resin and weakly basic anion exchange resin in equal volume: 1 (resin 5 bags filled in (filling amount: 10 liters) were immersed in the cooling water pit: B (discarded)
It is a thing.

【0029】実施例−2(図2参照) イオン交換繊維(東レ社の商品名:TIN−110H
(交換容量が3.0eq/lの強酸性陽イオン交換繊
維)とニチビ社の商品名:IEF−SA(交換容量が
2.0eq/lの強塩基性陰イオン交換繊維))をそれ
ぞれ5cm×10cmの短冊:2にしたもの。厚み:1
cm)各100枚を冷却水ピット:Bに浸漬した(径:
10mmのパイプ:4(洗濯物を干す竿に相当する)を
15本ク−リングタワ−の横断面方向に差し渡し、それ
に対し該イオン交換繊維の一端に設けたヒモ:5にて連
結し、吹き流しのように泳がせた)ものである。
Example 2 (see FIG. 2) Ion exchange fiber (trade name of Toray Co .: TIN-110H
5 cm each of (strong acidic cation exchange fiber having an exchange capacity of 3.0 eq / l) and Nichibi's trade name: IEF-SA (strong basic anion exchange fiber having an exchange capacity of 2.0 eq / l) 10 cm strip: made into 2. Thickness: 1
cm) 100 sheets each were immersed in the cooling water pit: B (diameter:
A 10 mm pipe: 4 (corresponding to a laundry drying rod) was passed in the direction of the transverse cross section of 15 cooling towers, and a string: 5 provided at one end of the ion exchange fiber was connected to the pipe, and a streamer was used. I was able to swim like).

【0030】実施例−3(図3参照) イオン交換樹脂(ピュロライト社の商品名:MB59V
C−交換容量がそれぞれ1.0eq/lの強酸性陽イオ
ン交換樹脂と弱塩基性陰イオン交換樹脂を等容量混合し
たもの)50リットルをポリプロピレン製のストレ−
ナ:6(網目が60メッシュ)を底面とする皿様の容
器:7(径:1,800mm×高さ:200mm)の中
に収納し(充填高さ:150mm)、該容器をク−リン
グタワ−の充填材の層:Pmの下端より該充填した樹脂
の層:IERの上面迄の距離が100mmとなる位置に
ク−リングタワ−の中心と該容器の中心とがほぼ合うよ
うに(厳密に合わせる必要はない。要は、流下水の大部
分が該樹脂の充填層を通過するように該容器をク−リン
グタワ−の横断面内に納めればよいのである)ク−リン
グタワ−の空間:Sに配置した(該容器全体を五徳様の
サポ−ト:8に載置。こうすることによって、該容器を
系外へ容易に取り出し得る)ものである。
Example 3 (see FIG. 3) Ion exchange resin (Purolite's trade name: MB59V)
C-exchange capacity of 1.0 eq / l each of strong acid cation exchange resin and weakly basic anion exchange resin mixed in equal volumes) 50 liter polypropylene storage
A container (6: diameter: 1800 mm x height: 200 mm) with a bottom surface of 6 mm (mesh of 60 mesh) as a bottom is stored (filling height: 150 mm), and the container is cooled. -Filler layer: Pm from the lower end to the filled resin layer: at the position where the distance from the upper surface of the IER is 100 mm, the center of the cooling tower and the center of the container are almost aligned (strictly speaking). It does not need to be adjusted, the point is that the container should be placed within the cross section of the cooling tower so that most of the effluent flows through the packed bed of the resin.) Cooling tower space: The container is placed in S (the entire container is placed on a support of Gotoku-sama: 8; by doing so, the container can be easily taken out of the system).

【0031】実施例−4(図4参照) イオン交換繊維(東レ社の商品名:TIN−110H
(交換容量が3.0eq/lの強酸性陽イオン交換繊
維)とニチビ社の商品名:IEF−SA(交換容量が
2.0eq/lの強塩基性陰イオン交換繊維))をそれ
ぞれ5cm×10cmの短冊にしたもの。厚み:1c
m)各100枚をク−リングタワ−の充填材の層:Pm
の下端より100mmの位置に簾状に垂らした(径:1
0mmのパイプ:9(洗濯物を干す竿に相当する)を1
5本五徳様のサポ−ト:8の上面に差し渡し、それに対
し該イオン交換繊維の一端に設けたヒモ:5にて連結し
た)ものである。
Example 4 (see FIG. 4) Ion exchange fiber (trade name: TIN-110H manufactured by Toray Industries, Inc.)
5 cm each of (strong acidic cation exchange fiber having an exchange capacity of 3.0 eq / l) and Nichibi's trade name: IEF-SA (strong basic anion exchange fiber having an exchange capacity of 2.0 eq / l) A 10 cm strip. Thickness: 1c
m) 100 layers of cooling material for each layer: Pm
100mm from the lower end of the
0 mm pipe: 1 (corresponding to a pole for hanging laundry)
5 pieces were supported on the upper surface of Gotoku-sama's support: 8 and, on the other hand, they were connected with a string provided at one end of the ion exchange fiber: 5.

【0032】実施例−5(図5参照) イオン交換繊維(東レ社の商品名:TIN−110H
(交換容量が3.0eq/lの強酸性陽イオン交換繊
維)とニチビ社の商品名:IEF−SA(交換容量が
2.0eq/lの強塩基性陰イオン交換繊維)をそれぞ
れ0.5リットル含む不織布からなる布団様物:3
(径:1,800mm×高さ:50mm)をその上面が
ク−リングタワ−の充填材の層:Pmの下端より100
mmとなる位置にク−リングタワ−の中心と該布団様物
の中心とがほぼ合うように(厳密に合わせる必要はな
い。要は、流下水の大部分が該布団様物を浸透しつつ通
過するように該布団様物をク−リングタワ−の横断面内
に納めればよいのである)ク−リングタワ−の空間:S
に配置(該布団様物を五徳様のサポ−ト:8に載置)し
たものである。
Example 5 (See FIG. 5) Ion exchange fiber (trade name of Toray Co .: TIN-110H
(A strongly acidic cation exchange fiber having an exchange capacity of 3.0 eq / l) and Nichibi's trade name: IEF-SA (strong basic anion exchange fiber having an exchange capacity of 2.0 eq / l) are 0.5 each. Futon-like material made of non-woven fabric including liter: 3
(Diameter: 1,800 mm x height: 50 mm), the upper surface of which is a cooling tower layer of filler: 100 from the lower end of Pm
The center of the cooling tower and the center of the futon-like material are substantially aligned with each other at a position of mm (it is not necessary to strictly match them. The point is that most of the running water passes through the futon-like material while penetrating the futon-like material. The futon-like material may be accommodated within the cross section of the cooling tower as described above.) Cooling tower space: S
(The futon-like material is placed on the support of Gotoku-sama: 8).

【0033】[0033]

【本発明の効果】各実施例の装置を各1ヶ月連続運転し
た(熱交換器は、模擬)。使用した補給水の水質(カッ
コ内の数値は、日本冷凍空調工業会が「冷却水の適正な
水質管理基準」として定めている冷却水基準値であ
る。)は下記の通りであり、各運転期間の平均補給水率
(補給水量/循環水量×100)は約1%であった。 (1) pH[25℃] 7.3(6.5〜8.0) (2) 導電率[25℃](μS/cm) 150(<800) (3) 塩素イオン(mgCl- /l) 20(<200) (4) 硫酸イオン(mgSO4 2- /l) 20(<200) (5) 酸消費量[pH4.8](mgCaCO3 /l) 40(<100) (6) 全硬度(mgCaCO3 /l) 45(<200) (7) 鉄(mgFe/l) 0.05(<1.0) (8) 硫化物イオン(mgS2-/l) N.D(N.D) (9) アンモニウムイオン(mgNH4 -/l) 0.05(<1.0) (10)イオン状シリカ(mgSiO2 /l) 15(<50)
The effects of the present invention were obtained by continuously operating the apparatus of each example for one month (the heat exchanger was simulated). The quality of the makeup water used (the values in parentheses are the cooling water standard values established by the Japan Refrigeration and Air Conditioning Industry Association as "appropriate water quality management standards for cooling water"). The average make-up water rate (make-up water amount / circulating water amount × 100) during the period was about 1%. (1) pH [25 ° C.] 7.3 (6.5 to 8.0) (2) Conductivity [25 ° C.] (μS / cm) 150 (<800) (3) Chloride ion (mgCl / l) 20 (<200) (4) Sulfate ion (mgSO 4 2- / l) 20 (<200) (5) Acid consumption [pH 4.8] (mgCaCO 3 / l) 40 (<100) (6) Total hardness (MgCaCO 3 / l) 45 (<200) (7) Iron (mgFe / l) 0.05 (<1.0) (8) Sulfide ion (mgS 2 − / l) N.V. D (N.D) (9) ammonium ions (mgNH 4 - / l) 0.05 (<1.0) (10) Ion-shaped silica (mgSiO 2 / l) 15 ( <50)

【0034】各実施例のイオン交換機能を有する樹脂又
は繊維は、1回/5日の交換頻度を想定してその量を決
めたものであるが、所定のイオン交換性能を満足してい
ることが確認されると共にスケ−ル(各実施例の運転期
間終了後、熱交換器の伝熱面を目視観察)及び腐食(冷
却水ピットに10cm角の鉄片を浸漬し、各実施例の運
転期間終了後、該鉄片を目視観察)は認められなかっ
た。
The resin or fiber having an ion exchange function of each example is determined in quantity assuming the exchange frequency of once / 5 days, but it must satisfy the predetermined ion exchange performance. And the scale (after completion of the operation period of each example, visual observation of the heat transfer surface of the heat exchanger) and corrosion (immersing a 10 cm square iron piece in the cooling water pit, the operation period of each example) After the completion, the iron piece was not visually observed).

【0035】本発明によれば、イオン交換装置を別途設
けることなく冷却水系のスケ−ル・腐食障害を防止する
ことができる。
According to the present invention, the scale / corrosion failure of the cooling water system can be prevented without separately providing an ion exchange device.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明方法の一実施装置の配設態様を摸式的に
示す部分拡大断面図である。
FIG. 1 is a partially enlarged cross-sectional view schematically showing an arrangement mode of an apparatus for carrying out a method of the present invention.

【図2】本発明方法の別の一実施装置の配設態様を摸式
的に示す部分拡大断面図である。
FIG. 2 is a partially enlarged cross-sectional view schematically showing the arrangement of another apparatus for carrying out the method of the present invention.

【図3】本発明方法の更に別の一実施装置の配設態様を
摸式的に示す部分拡大断面図である。
FIG. 3 is a partially enlarged cross-sectional view schematically showing an arrangement mode of yet another apparatus for carrying out the method of the present invention.

【図4】本発明方法の更に別の一実施装置の配設態様を
摸式的に示す部分拡大断面図である。
FIG. 4 is a partially enlarged cross-sectional view schematically showing an arrangement mode of another apparatus for carrying out the method of the present invention.

【図5】本発明方法の更に別の一実施装置の配設態様を
摸式的に示す部分拡大断面図である。
FIG. 5 is a partially enlarged cross-sectional view schematically showing an arrangement mode of yet another apparatus for carrying out the method of the present invention.

【図6】一般的なク−リングタワ−における水の流れを
摸式的に示した線図である。
FIG. 6 is a schematic diagram showing the flow of water in a general cooling tower.

【符号の説明】[Explanation of symbols]

T・・・・・・ク−リングタワ− B・・・・・・冷却水ピット Pr・・・・循環ポンプ C・・・・・・熱交換器 Qr・・・・循環水 N・・・・・・散水用パイプ Pm・・・・充填材の層 L・・・・・・ル−バ S・・・・・・空間 F・・・・・・ファン Qm・・・・補給水 1・・・・・・ネット様物 2・・・・・・短冊様物 3・・・・・・布団様物 T: Cooling tower B: Cooling water pit Pr: Circulating pump C: Heat exchanger Qr: Circulating water N ...・ ・ Sprinkling pipe Pm ・ ・ ・ ・ ・ ・ Filler layer L ・ ・ ・ ・ Louver S ・ ・ ・ ・ Space F ・ ・ ・ ・ ・ ・ Fan Qm ・ ・ ・ ・ Makeup water 1 ・ ・・ ・ ・ Net-like items 2 ・ ・ ・ Strip-like items 3 ・ ・ ・ ・ Futon-like items

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 F28F 25/04 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display area F28F 25/04

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 ク−リングタワ−の循環水をイオン交換
機能を有する樹脂又は繊維により脱イオン処理する方法
であって、該樹脂又は該繊維をク−リングタワ−の冷却
水ピットに浸漬することによって冷却水のイオン濃度を
一定値以下に保持することを特徴とする方法。
1. A method of deionizing circulating water of a cooling tower with a resin or fiber having an ion exchange function, which comprises immersing the resin or the fiber in a cooling water pit of the cooling tower. A method characterized in that the ion concentration of the cooling water is maintained below a certain value.
【請求項2】 前記の樹脂がネット様物の中に収納され
たものである請求項1に記載の方法。
2. The method according to claim 1, wherein the resin is contained in a net-like material.
【請求項3】 前記の繊維が短冊様物である請求項1に
記載の方法。
3. The method of claim 1, wherein the fibers are strip-shaped.
【請求項4】 ク−リングタワ−の循環水をイオン交換
機能を有する樹脂又は繊維により脱イオン処理する方法
であって、該樹脂又は該繊維をク−リングタワ−の充填
層下端と冷却水ピットの液面との間に配設することによ
って冷却水のイオン濃度を一定値以下に保持することを
特徴とする方法。
4. A method for deionizing circulating water of a cooling tower with a resin or fiber having an ion exchange function, the resin or the fiber being formed in a lower end of a packed bed of the cooling tower and a cooling water pit. A method for maintaining the ion concentration of cooling water at a certain value or less by disposing the cooling water at a level below the liquid level.
【請求項5】 前記の樹脂がネット様物の中に収納され
たものであり、複数個の該ネット様物が簾状に垂らされ
たものである請求項4に記載の方法。
5. The method according to claim 4, wherein the resin is contained in a net-like material, and a plurality of the net-like materials are hung in a blind shape.
【請求項6】前記の繊維が短冊様物であり、複数本の該
短冊様物が簾状に垂らされたものである請求項4に記載
の方法。
6. The method according to claim 4, wherein the fiber is a strip-shaped product, and a plurality of the strip-shaped products are hung in a blind shape.
【請求項7】 前記の樹脂が透水性を有する底面を有す
る皿様の容器の中に収納されたものである請求項4に記
載の方法。
7. The method according to claim 4, wherein the resin is contained in a dish-like container having a water-permeable bottom surface.
【請求項8】 前記の繊維が該繊維を含む不織布からな
る布団様物である請求項4に記載の方法。
8. The method according to claim 4, wherein the fiber is a futon-like material made of a non-woven fabric containing the fiber.
JP6024467A 1994-02-22 1994-02-22 Water treatment method Expired - Lifetime JP2660157B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049250A1 (en) * 1997-04-25 1998-11-05 Adam Isherwood A composition and method for reducing noise and/or fouling in a liquid cooling system
WO1999057218A1 (en) * 1998-05-06 1999-11-11 Shishiai-Kabushikigaisha Dilute coolant
CN103303999A (en) * 2013-07-03 2013-09-18 内蒙古大学 Preparation method of heavy metal ion adsorption hanging net taking super absorbent resin as filler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137078U (en) * 1979-03-22 1980-09-30
JPS5721093U (en) * 1980-07-09 1982-02-03
JPS61155095U (en) * 1985-03-12 1986-09-26
JPS61187293U (en) * 1985-05-16 1986-11-21
JPS63159134U (en) * 1987-04-03 1988-10-18
JPH01170490U (en) * 1988-01-12 1989-12-01
JPH0299187A (en) * 1988-10-06 1990-04-11 Nec Corp Water purification device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55137078U (en) * 1979-03-22 1980-09-30
JPS5721093U (en) * 1980-07-09 1982-02-03
JPS61155095U (en) * 1985-03-12 1986-09-26
JPS61187293U (en) * 1985-05-16 1986-11-21
JPS63159134U (en) * 1987-04-03 1988-10-18
JPH01170490U (en) * 1988-01-12 1989-12-01
JPH0299187A (en) * 1988-10-06 1990-04-11 Nec Corp Water purification device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049250A1 (en) * 1997-04-25 1998-11-05 Adam Isherwood A composition and method for reducing noise and/or fouling in a liquid cooling system
WO1999057218A1 (en) * 1998-05-06 1999-11-11 Shishiai-Kabushikigaisha Dilute coolant
CN103303999A (en) * 2013-07-03 2013-09-18 内蒙古大学 Preparation method of heavy metal ion adsorption hanging net taking super absorbent resin as filler

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