JP6544528B2 - Ion exchange apparatus and method of using the same - Google Patents
Ion exchange apparatus and method of using the same Download PDFInfo
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- JP6544528B2 JP6544528B2 JP2016126861A JP2016126861A JP6544528B2 JP 6544528 B2 JP6544528 B2 JP 6544528B2 JP 2016126861 A JP2016126861 A JP 2016126861A JP 2016126861 A JP2016126861 A JP 2016126861A JP 6544528 B2 JP6544528 B2 JP 6544528B2
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- 238000005342 ion exchange Methods 0.000 title claims description 76
- 238000000034 method Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 229
- 238000005341 cation exchange Methods 0.000 claims description 115
- 238000005349 anion exchange Methods 0.000 claims description 106
- 238000004891 communication Methods 0.000 claims description 82
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 78
- 239000011347 resin Substances 0.000 claims description 53
- 229920005989 resin Polymers 0.000 claims description 53
- 239000003957 anion exchange resin Substances 0.000 claims description 49
- 239000003729 cation exchange resin Substances 0.000 claims description 45
- 230000008929 regeneration Effects 0.000 claims description 41
- 238000011069 regeneration method Methods 0.000 claims description 41
- 239000003456 ion exchange resin Substances 0.000 claims description 33
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 21
- 238000009826 distribution Methods 0.000 description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 238000009434 installation Methods 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 9
- 230000001172 regenerating effect Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000012776 electronic material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005678 polyethylene based resin Polymers 0.000 description 1
- 229920005673 polypropylene based resin Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Description
本発明は、工業用水などの原水をイオン交換樹脂の充填層に通して純水を製造する技術分野において、アニオン交換樹脂とカチオン交換樹脂とを備えた、２床１塔再生型純水製造装置に関する。 The present invention is a two-bed one-column regeneration type pure water producing apparatus comprising an anion exchange resin and a cation exchange resin in the technical field of producing pure water by passing raw water such as industrial water through a packed bed of ion exchange resin. About.
工業用水などの原水より純水を製造するには、例えばイオン交換樹脂を充填した塔を備えた装置に原水を通水し、原水に含まれる種々の成分を除去する操作による。このような純水製造に用いられるイオン交換樹脂を充填した塔を備えた装置としては、陽イオン交換樹脂と陰イオン交換樹脂とを混合して１つの塔に充填した混床塔の他、陽イオン交換樹脂と陰イオン交換樹脂とをそれぞれ別の塔に充填した、多床塔などがある。 In order to produce pure water from raw water such as industrial water, for example, the raw water is passed through an apparatus equipped with a tower filled with ion exchange resin to remove various components contained in the raw water. As an apparatus provided with a column filled with ion exchange resin used for such pure water production, in addition to a mixed bed column in which a cation exchange resin and an anion exchange resin are mixed and filled in one column, There is a multi-bed tower or the like in which ion exchange resin and anion exchange resin are packed in separate towers.
例えば同じ一つの塔に、陽イオン交換樹脂と陰イオン交換樹脂とを仕切板を介して積層させた１塔式（図１参照）がある。１塔式は装置構成が簡単なことから、従来より図１に示す１塔式による装置が採用されていた（例えば特許文献１参照）。
このように、陽イオン交換樹脂と陰イオン交換樹脂から構成される純水製造装置に原水を通水すると、原水中のイオンが陽イオン交換樹脂および陰イオン交換樹脂の作用により除去され、純水が得られる。
For example, there is a single tower system (see FIG. 1) in which a cation exchange resin and an anion exchange resin are laminated via a partition plate in the same one tower. Since the single-column system has a simple apparatus configuration, a single-column system shown in FIG. 1 has conventionally been employed (see, for example, Patent Document 1).
Thus, when the raw water is passed through a pure water production apparatus composed of a cation exchange resin and an anion exchange resin, ions in the raw water are removed by the action of the cation exchange resin and the anion exchange resin, and pure water Is obtained.
ところで、例えば半導体等の電子材料を製造する工場においては、大容量でかつ高純度な純水が必要であり、さらには製造工場の立地条件によっては、コンパクトな純水製造装置が必要とされた。
さらに、当該純水製造装置の保守管理（メンテナンス）には、保守要員等が装置に入りこめると共に、装置の外から中の樹脂充填状況等を確認できるような構造を有する装置であることも望まれていた。
By the way, for example, in a factory that manufactures electronic materials such as semiconductors, pure water having a large capacity and high purity is required, and further, depending on the location conditions of the manufacturing factory, a compact pure water manufacturing apparatus is required. .
Furthermore, it is desirable that the maintenance management (maintenance) of the pure water production apparatus has an apparatus that allows maintenance personnel and the like to get into the apparatus and check the resin filling condition etc. from the outside of the apparatus. It was rare.
特許文献１に記載のイオン交換装置は、内部にイオン交換樹脂が充填されるイオン交換装置用塔体において、内部に遮水性の凸状に湾曲した仕切板を設けることによって上室と下室とに区画形成し、上室と下室に液を供給又は排出するための給排配管、液を給排するための連通手段、連通配管の開閉手段を備える。さらに、上室の上部、上室の下部、下室の上部及び下室の下部にそれぞれ、水は通すがイオン交換樹脂の通過を阻止する集配水部材（集配水管）が配置され、上室下部の集配水部材及び下室上部の集配水部材が仕切板に沿う形状を有し、上室上部及び下室上部に粒状の不活性樹脂が充填された構成を有するものである。
The ion exchange device described in
しかしながら、この装置は次の課題を有する。
１）集配水部材は仕切板に沿って中心から周辺部へと放射状に広がる傘の骨のような形状をしているものがある。このような場合、中心部に比較して周辺部では集配水管同士の間隔が広くなり、滞留部が生じやすくなる。この傾向は装置を大型化した場合に顕著になるため、処理能力に限界があった。
２）上室上部及び下室上部に充填された不活性樹脂はイオン交換樹脂の再生の効率化などの目的で設けられているが、不活性樹脂が充填される分、その容積に応じてイオン交換装置の高さを高くする必要があった。
However, this device has the following problems.
1) The water collecting and distributing member may be shaped like a bone of an umbrella extending radially from the center to the periphery along the partition plate. In such a case, the distance between the water collecting and distributing pipes is wider in the peripheral portion than in the central portion, and a stagnant portion is easily generated. Since this tendency is remarkable when the apparatus is enlarged, the processing capacity is limited.
2) The inactive resin filled in the upper part of the upper chamber and the upper part of the lower chamber is provided for the purpose of improving the efficiency of regeneration of the ion exchange resin, but the amount filled with the inert resin corresponds to the volume It was necessary to increase the height of the replacement device.
また陰イオン交換樹脂と陽イオン交換樹脂をそれぞれ別々の塔に充填した２塔式の装置においては、次の課題を有する。
１）陰イオン交換樹脂を充填した塔と陽イオン交換樹脂を充填した塔を別々に設置する必要があり、通常はこれらの塔を横に並べて設置する。このため、これらの塔を設置するのに必要な場所を確保する必要があり、限られた処理施設内で装置を設置するにあたり十分に広い場所を確保することが難しかった。
２）塔間を配管により連通させる場合、塔を横に並べた構成では配管の長さが長くなると共に、その構造も複雑となって施設の管理が難しくなりうるものであった。
Further, the two-column type apparatus in which the anion exchange resin and the cation exchange resin are packed in separate columns respectively has the following problems.
1) It is necessary to separately install a column filled with anion exchange resin and a column filled with cation exchange resin. Usually, these columns are installed side by side. For this reason, it was necessary to secure a place necessary for installing these towers, and it was difficult to secure a sufficiently large site for installing the apparatus in a limited treatment facility.
2) In the case where the towers are connected by piping, in the configuration in which the towers are arranged side by side, the length of the piping becomes long and the structure becomes complicated, which may make it difficult to manage the facilities.
本発明は上記事情に鑑みてなされたもので、その目的は、設置面積が少なくてすむコンパクトな大きさであるにも関わらずメンテナンスの容易な装置を提供することにある。他の目的として、原水処理能力が大きい装置を提供することにある。さらに他の目的として、イオン交換樹脂の再生を効率的に行なうことができる装置を提供することにある。 The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide an apparatus which can be easily maintained despite its compact size and a small installation area. Another object is to provide a device having a large raw water treatment capacity. Another object of the present invention is to provide an apparatus capable of efficiently regenerating an ion exchange resin.
本発明者らは、従来の課題を解決すべく鋭意検討した結果、陰イオン交換樹脂を充填した槽（以下「アニオン交換槽」という）と陽イオン交換樹脂を充填した槽（以下「カチオン交換槽」という）の２床１塔式の装置であって、カチオン交換槽とアニオン交換槽とのいずれか一方を上方に他方を下方に設置すると共に、アニオン交換槽とカチオン交換槽とを空間を保った状態で上下方向に保持する保持部材を備えることで、イオン交換装置の占める面積を少なくでき、またアニオン交換槽とカチオン交換槽とを一体化した一つの塔として、工場で効率的に稼働でき、さらにメンテナンスの容易な装置を提供できることを見出した。 As a result of intensive studies to solve the conventional problems, the inventors of the present invention have found that a tank filled with anion exchange resin (hereinafter referred to as "anion exchange tank") and a tank filled with cation exchange resin (hereinafter referred to as "cation exchange tank" The two-bed, one-column type apparatus), wherein one of the cation exchange tank and the anion exchange tank is installed upward and the other is installed downward, and the space between the anion exchange tank and the cation exchange tank is maintained. By providing a holding member that holds in the vertical direction in the vertical direction, the area occupied by the ion exchange device can be reduced, and it is possible to operate efficiently in the factory as one tower integrating the anion exchange tank and the cation exchange tank. It has been found that it is possible to provide an easy maintenance device.
さらに、アニオン交換槽およびカチオン交換槽の各々の上部および下部に平板を設置して、交換槽の上室と樹脂充填室と下室とに区画すると共に、当該平板の所定位置に水は通すがイオン交換樹脂の通過を阻止する集配水部材（集配水管）を設置することで、原水の大量処理を実現でき、さらに樹脂再生から再稼働までの時間を短縮できることを見出し、本発明を完成させるに至った。 Furthermore, a flat plate is installed at the upper and lower portions of each of the anion exchange tank and the cation exchange tank to separate the upper chamber, the resin-filled chamber and the lower chamber of the exchange tank, and water passes through the predetermined position of the flat plate. By installing a water collecting and distributing member (water collecting and distributing pipe) which blocks passage of ion exchange resin, it can be realized that mass treatment of raw water can be realized, and furthermore, the time from resin regeneration to re-operation can be shortened. It reached.
以下、本発明を詳細に説明する。
本発明のイオン交換装置は、
上方にアニオン交換樹脂が充填されたアニオン交換槽と、下方にカチオン交換樹脂が充填されたカチオン交換槽とを備えたイオン交換装置であって、
前記アニオン交換槽及び前記カチオン交換槽は、各々独立して、上部と下部に備えられた外側に凸状である鏡板とイオン交換槽側部の支持体により外殻が構成され、かつ、上下二枚の平板により区画された上室、樹脂充填室及び下室を備えており、
前記アニオン交換槽と前記カチオン交換槽とは、これらのイオン交換槽の外側で連通手段により連通されており、
前記アニオン交換槽の上部に液を供給又は排出するための給排配管と前記カチオン交換槽の下部に液を供給又は排出するための給排配管とを備えており、
前記連通手段は、
前記アニオン交換槽の下部に液を給排するための第１の連通配管と、
前記カチオン交換槽の上部に液を給排するための第２の連通配管と、
前記第１の連通配管と前記第２の連通配管とを連通する第３の連通配管と、
前記第３の連通配管の開閉手段と、
前記第１の連通配管及び前記第２の連通配管にそれぞれ設けられた再生液の給排手段と、
を備え、
前記平板には、水は通すがイオン交換樹脂の通過を阻止する集配水部材が配置され、
前記アニオン交換槽上部の給排配管、前記第１の連通配管、前記第２の連通配管および前記カチオン交換槽下部の給排配管、つまりそれらの末端が、前記アニオン交換槽および前記カチオン交換槽のそれぞれの上部と下部に設けられた鏡板に連通している、装置である。
Hereinafter, the present invention will be described in detail.
The ion exchange device of the present invention is
An ion exchange apparatus comprising an anion exchange vessel filled with an anion exchange resin in the upper side and a cation exchange vessel filled with a cation exchange resin in the lower side,
The anion exchange tank and the cation exchange tank each independently have an outer shell composed of an outwardly convex end plate provided at the upper and lower portions and a support of the side of the ion exchange tank, and It has an upper chamber, a resin-filled chamber and a lower chamber separated by a flat plate,
The anion exchange tank and the cation exchange tank are communicated with each other by a communication means outside the ion exchange tank,
A feed / discharge pipe for supplying or discharging a liquid to the upper part of the anion exchange tank, and a feed / discharge pipe for supplying or discharging a liquid to a lower part of the cation exchange tank;
The communication means is
A first communication pipe for supplying and discharging a liquid to a lower portion of the anion exchange tank;
A second communication pipe for supplying and discharging a liquid to an upper portion of the cation exchange tank;
A third communication pipe that connects the first communication pipe and the second communication pipe;
Opening and closing means of the third communication pipe;
Supply / discharge means for the regeneration fluid respectively provided to the first communication pipe and the second communication pipe;
Equipped with
The flat plate is provided with a water collecting and distributing member that allows water to pass but prevents passage of the ion exchange resin,
The supply and discharge pipe at the upper portion of the anion exchange tank, the first communication pipe, the second communication pipe, and the supply and discharge pipe at the lower portion of the cation exchange tank, that is, their ends are the anion exchange tank and the cation exchange tank It is an apparatus which is in communication with the end plate provided in each upper and lower part.
また本発明は、上方にカチオン交換樹脂が充填されたカチオン交換槽と、下方にアニオン交換樹脂が充填されたアニオン交換槽とを備えたイオン交換装置であって、
前記カチオン交換槽及び前記アニオン交換槽は、各々独立して、上部と下部に備えられた外側に凸状である鏡板とイオン交換槽側部の支持体により外殻が構成され、かつ、上下二枚の平板により区画された上室、樹脂充填室及び下室を備えており、
前記カチオン交換槽と前記アニオン交換槽とは、これらのイオン交換槽の外で連通手段により連通されており、
前記カチオン交換槽の上部に液を供給又は排出するための給排配管と前記アニオン交換槽の下部に液を供給又は排出するための給排配管とを備えており、
前記連通手段は、
前記カチオン交換槽の下部に液を給排するための第１の連通配管と、
前記アニオン交換槽の上部に液を給排するための第２の連通配管と、
前記第１の連通配管と前記第２の連通配管とを連通する第３の連通配管と、
前記第３の連通配管の開閉手段と、
前記第１の連通配管及び前記第２の連通配管にそれぞれ設けられた再生液の給排手段と、
を備え、
前記平板には、水は通すがイオン交換樹脂の通過を阻止する集配水部材が配置され、
前記カチオン交換槽上部の給排配管、前記第１の連通配管、前記第２の連通配管および前記アニオン交換槽下部の給排配管、つまりそれらの末端が、前記カチオン交換槽および前記アニオン交換槽のそれぞれの上部と下部に設けられた鏡板に連通している、装置である。
Further, the present invention is an ion exchange apparatus comprising a cation exchange vessel filled with a cation exchange resin at the upper side and an anion exchange vessel filled with an anion exchange resin at the lower side,
The cation exchange tank and the anion exchange tank each independently have an outer shell composed of an outwardly convex end plate provided on the upper and lower parts and a support of the ion exchange tank side, and It has an upper chamber, a resin-filled chamber and a lower chamber separated by a flat plate,
The cation exchange tank and the anion exchange tank are communicated with each other outside the ion exchange tank by communication means.
A feed / discharge pipe for supplying or discharging a liquid to the upper part of the cation exchange tank, and a feed / discharge pipe for supplying or discharging a liquid to a lower part of the anion exchange tank;
The communication means is
A first communication pipe for supplying and discharging a liquid to a lower portion of the cation exchange tank;
A second communication pipe for supplying and discharging a liquid to an upper portion of the anion exchange tank;
A third communication pipe that connects the first communication pipe and the second communication pipe;
Opening and closing means of the third communication pipe;
Supply / discharge means for the regeneration fluid respectively provided to the first communication pipe and the second communication pipe;
Equipped with
The flat plate is provided with a water collecting and distributing member that allows water to pass but prevents passage of the ion exchange resin,
The supply / discharge pipe at the upper part of the cation exchange tank, the first communication pipe, the second communication pipe, and the supply / discharge pipe at the lower part of the anion exchange tank, that is, their ends are the cation exchange tank and the anion exchange tank It is an apparatus which is in communication with the end plate provided in each upper and lower part.
また本発明の装置は、集配水部材の遮水性の平板における設置バリエーションとして、平板の中心部から一定間隔離れた複数の同心円上に一定間隔毎に設置、平板上に縦横に一定間隔となるように設置することができる。また、集配水部材が円錐形状を有するときは平板のイオン交換樹脂層の側へ円錐形状にて突き出すように設置し、集配水部材が円筒形状を有するときは平板の表裏両面から突き出すように設置することができる。さらに集配水部材が円筒形状を有するときは、平板とイオン交換樹脂層の間に、粒状の不活性樹脂が充填されており、アニオン交換槽上部の集配水部材及びカチオン交換槽上部の集配水部材がそれぞれ不活性樹脂中に埋設された層を有する。 In the device of the present invention, as a variation of installation on the flat plate of the water blocking member of the water collecting and distributing member, the device is installed on a plurality of concentric circles spaced apart from the center part of the flat plate at regular intervals. It can be installed on In addition, when the water collecting and distributing member has a conical shape , it is installed so as to project in a conical shape toward the flat ion exchange resin layer side, and when the water collecting and distributing member has a cylindrical shape , it is installed so as to protrude from both front and back sides of the flat plate can do. Furthermore, when the water collecting and distributing member has a cylindrical shape , the granular inactive resin is filled between the flat plate and the ion exchange resin layer, and the water collecting and distributing member at the upper portion of the anion exchange tank and the water collecting and distributing member at the upper portion of the cation exchange tank Each have a layer embedded in the inert resin.
また本発明の装置は、アニオン交換槽およびカチオン交換槽の断面形状が略円形状であって、好ましくはアニオン交換槽とカチオン交換槽との断面直径が同じ長さであるとよく、その断面は所定の直径を有する。断面の直径は特に限定されるものではないが、被処理水の処理量と線速度（ＬＶ）の関係から５００ｍｍ以上であることが好ましく、また、３０００ｍｍ以下であることが好ましい
また本発明の装置は、アニオン交換樹脂層の層高およびカチオン交換樹脂層の層高が所定の高さを有するとよい。
In the device of the present invention, the cross-sectional shape of the anion exchange tank and the cation exchange tank is substantially circular, and preferably the cross-sectional diameters of the anion exchange tank and the cation exchange tank are the same length. It has a predetermined diameter. The diameter of the cross section is not particularly limited, but is preferably 500 mm or more, and preferably 3000 mm or less from the relationship between the treated amount of water to be treated and the linear velocity (LV). Preferably, the layer height of the anion exchange resin layer and the layer height of the cation exchange resin layer have a predetermined height.
また本発明の装置は、アニオン交換槽下端とカチオン交換槽上端との距離、またはカチオン交換槽下端とアニオン交換槽上端との距離が所定の距離を有するとよい。
本発明のアニオン交換槽およびカチオン交換槽を有するイオン交換装置の使用方法としては、原水をカチオン交換槽へ、イオン交換樹脂を浮上させて処理するために、線速度（LV）５０ｍ／ｈｒ（時間）以上で通水することが好ましい。
In the apparatus of the present invention, the distance between the anion exchange tank lower end and the cation exchange tank upper end or the distance between the cation exchange tank lower end and the anion exchange tank upper end may have a predetermined distance.
As a method of using the ion exchange apparatus having the anion exchange tank and the cation exchange tank of the present invention, linear velocity (LV) 50 m / hr (hour) to treat raw water to float the ion exchange resin to the cation exchange tank. It is preferable to let water flow above.
本発明のイオン交換装置は、次の効果を奏する。
１）設置面積が少なくてすむコンパクトな大きさであるため、工場内の生産部分に多くを割り当てることができ、施設の有効利用を図ることができる。
２）原水処理能力が大きいため、半導体製造工場のような高純度の純水を大量使用する場合にも適応できる。
３）イオン交換樹脂の再生を効率的に行なうことができるため、再生処理後の純水製造の立ち上がりが早く、効率的な運転ができる。
The ion exchange device of the present invention has the following effects.
1) Since the installation area is small and the compact size is sufficient, it is possible to allocate a large amount to the production part in the factory, and to achieve effective use of the facility.
2) Because the raw water treatment capacity is large, it can be applied to the case of using a large amount of pure water of high purity as in a semiconductor manufacturing factory.
3) Since regeneration of the ion exchange resin can be performed efficiently, the start of production of pure water after the regeneration treatment is fast, and efficient operation can be performed.
以下、本発明の実施形態を図面にしたがって説明する。
＜イオン交換装置＞
図２には、本発明の装置の一例として、上方にアニオン交換樹脂を充填したアニオン交換槽（２）、下方にカチオン交換樹脂を充填したカチオン交換槽（３）を備えたイオン交換装置（１）の概略図を示す。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Ion exchange device>
In FIG. 2, as an example of the apparatus of the present invention, an ion exchange apparatus (1) comprising an anion exchange vessel (2) filled with anion exchange resin at the upper side and a cation exchange vessel (3) filled with cation exchange resin at the lower side ) Is shown.
本発明のイオン交換装置（１）の一部を構成するアニオン交換槽（２）は、筒軸心方向を鉛直方向としたアニオン交換槽の側部の胴（２ｂ）と、頂部の鏡板（５ａ）と、底部の鏡板（５ｂ）とによって外殻が構成されている。
また本発明のイオン交換装置（１）の一部を構成するカチオン交換槽（３）は、筒軸心方向を鉛直方向としたカチオン交換槽の側部の胴（３ｂ）と、頂部の鏡板（５ｃ）と、底部の鏡板（５ｄ）とによって外殻が構成されている。上記の鏡板（５ａ）と鏡板（５ｃ）は上に凸に湾曲し、鏡板（５ｂ）と鏡板（５ｄ）は下に凸に湾曲している。
The anion exchange vessel (2) which constitutes a part of the ion exchange apparatus (1) of the present invention has a barrel (2b) at the side of the anion exchange vessel whose vertical direction is the cylinder axial direction and an end plate (5a) at the top. And the bottom end plate (5b) constitute an outer shell.
Further, the cation exchange vessel (3) constituting a part of the ion exchange apparatus (1) of the present invention has a barrel (3b) on the side of the cation exchange vessel whose vertical direction is the cylinder axial direction and An outer shell is constituted by 5c) and the bottom end plate (5d). The above-mentioned end plate (5a) and the end plate (5c) are convexly curved upward, and the end plate (5b) and the end plate (5d) are convexly curved downward.
アニオン交換槽（２）は、上方の遮水性の平板（６ａ）および下方の平板（６ｂ）によって上室（１３ａ）とアニオン交換樹脂充填室（２ａ）と下室（１３ｂ）との３室に区画されている。またカチオン交換槽（３）は、上方の遮水性の平板（６ｃ）および下方の平板（６ｄ）によって上室（１３ｃ）とカチオン交換樹脂充填室（３ａ）と下室（１３ｄ）との３室に区画されている。 The anion exchange vessel (2) is divided into three chambers, the upper chamber (13a), the anion exchange resin filled chamber (2a) and the lower chamber (13b), by the upper water blocking flat plate (6a) and the lower flat plate (6b) It is divided. In addition, the cation exchange tank (3) has three chambers, an upper chamber (13c), a cation exchange resin filled chamber (3a), and a lower chamber (13d), by the upper water blocking flat plate (6c) and the lower flat plate (6d) It is divided into
平板６（６ａ〜６ｄ）は、水を全く通過させない金属又は合成樹脂製のものであり、平面構造となっている。
アニオン交換槽（２）の上室（１３ａ）とアニオン交換樹脂充填室（２ａ）とを区画する平板（６ａ）に第１の集配水部材（７ａ）が、上室（１３ａ）側の集配水部材（７ａ１）とアニオン交換樹脂充填室（２ａ）側の集配水部材（７ａ２）とで平板（６ａ）を貫通するように配置され、この第１の集配水部材（７ａ）の上室（１３ａ）側の集配水部材（７ａ１）は上室（１３ａ）を介して、末端が鏡板（５ａ）に接続された上部給排配管（１０ａ）と連通している。
The flat plate 6 (6a to 6d) is made of metal or synthetic resin which does not allow water to pass at all, and has a planar structure.
A first water collecting / distributing member (7a) is disposed on a flat plate (6a) separating the upper chamber (13a) of the anion exchange tank (2) and the anion exchange resin-filled chamber (2a); The member (7a1) and the water collecting and distributing member (7a2) on the anion exchange resin filling chamber (2a) side are arranged to penetrate the flat plate (6a), and the upper chamber (13a) of the first water collecting and distributing member (7a) The water collecting and distributing member (7a1) on the side communicates with the upper water supply and discharge pipe (10a) whose end is connected to the end plate (5a) via the upper chamber (13a).
アニオン交換槽（２）の下室（１３ｂ）とアニオン交換樹脂充填室（２ａ）とを区画する平板（６ｂ）に第２の集配水部材（７ｂ）が、下室（１３ｂ）側の集配水部材（７ｂ１）とアニオン交換樹脂充填室（２ａ）側の集配水部材（７ｂ２）とで平板（６ｂ）を貫通するように配置され、この第２の集配水部材（７ｂ）の下室（１３ｂ）側の集配水部材（７ｂ１）は下室（１３ｂ）を介して、末端が鏡板（５ｂ）に接続された第１の連通配管（９ａ）と連通している。 A second water collecting / distributing member (7b) is provided on a flat plate (6b) that separates the lower chamber (13b) of the anion exchange tank (2) and the anion exchange resin-filled chamber (2a), the water collecting / distributing water on the lower chamber (13b) side The member (7b1) and the water collecting and distributing member (7b2) on the anion exchange resin filling chamber (2a) side are arranged to penetrate the flat plate (6b), and the lower chamber (13b) of the second water collecting and distributing member (7b) The water collecting and distributing member (7b1) on the) side communicates with the first communication pipe (9a) whose end is connected to the end plate (5b) via the lower chamber (13b).
カチオン交換槽（３）についてもアニオン交換槽（２）同様であり、以下に説明する。
カチオン交換槽（３）の上室（１３ｃ）とカチオン交換樹脂充填室（３ａ）とを区画する平板（６ｃ）に第３の集配水部材（７ｃ）が、上室（１３ｃ）側の集配水部材（７ｃ１）とアニオン交換樹脂充填室（３ａ）側の集配水部材（７ｃ２）とで平板（６ｃ）を貫通するように配置され、この第３の集配水部材（７ｃ）の上室（１３ｃ）側の集配水部材（７ｃ１）は上室（１３ｃ）を介して、末端が鏡板（５ｃ）に接続された第２の連通配管（９ｂ）と連通している。
The cation exchange tank (3) is the same as the anion exchange tank (2), and will be described below.
A third water collecting and distributing member (7c) is provided on a flat plate (6c) that divides the upper chamber (13c) of the cation exchange tank (3) and the cation exchange resin-filled chamber (3a). The member (7c1) and the water collecting and distributing member (7c2) on the anion exchange resin filling chamber (3a) side are arranged to penetrate the flat plate (6c), and the upper chamber (13c) of the third water collecting and distributing member (7c) The water collecting and distributing member (7c1) on the) side communicates with the second communication pipe (9b) whose end is connected to the end plate (5c) via the upper chamber (13c).
カチオン交換槽（３）の下室（１３ｄ）とカチオン交換樹脂充填室（３ａ）とを区画する平板（６ｄ）に第４の集配水部材（７ｄ）が、下室（１３ｄ）側の集配水部材（７ｄ１）とアニオン交換樹脂充填室（３ａ）側の集配水部材（７ｄ２）とで平板（６ｄ）を貫通するように配置され、この第４の集配水部材（７ｄ）の下室（１３ｄ）側の集配水部材（７ｄ１）は下室（１３ｄ）を介して、末端が鏡板（５ｄ）に接続された下部給排配管（１０ｂ）と連通している。 A fourth water collecting and distributing member (7d) is provided on a flat plate (6d) that separates the lower chamber (13d) of the cation exchange tank (3) and the cation exchange resin filled chamber (3a), and the water collecting and distributing water on the lower chamber (13d) side The member (7d1) and the water collecting and distributing member (7d2) on the anion exchange resin filling chamber (3a) side are arranged to penetrate the flat plate (6d), and the lower chamber (13d) of the fourth water collecting and distributing member (7d) The water collection and distribution member (7d1) on the) side communicates with the lower water supply and discharge pipe (10b) whose end is connected to the end plate (5d) via the lower chamber (13d).
さらに本発明の、塔上方にアニオン交換槽、下方にカチオン交換槽を備えたイオン交換装置（１）の一部を構成するアニオン交換槽（２）の下方の平板（６ｂ）とカチオン交換槽（３）の上方の平板（６ｃ）との間には、筒軸心方向を鉛直方向とした塔体胴（８ａ）と、カチオン交換槽（３）の下方の平板（６ｄ）から下方には、筒軸心方向を鉛直方向とした塔体胴（８ｂ）が設置されている。 Furthermore, the lower plate (6b) of the anion exchange vessel (2) which constitutes a part of the ion exchange apparatus (1) provided with the anion exchange vessel above the column and the cation exchange vessel below of the present invention Between the column cylinder (8a) whose vertical axis direction is the cylinder axis direction and the flat plate (6d) below the cation exchange tank (3) between the upper plate (6c) of 3) and the lower part of the cation exchange tank (3), A tower cylinder (8b) is installed with the cylinder axis direction as the vertical direction.
塔体胴（８ａ）および塔体胴（８ｂ）は、本発明のイオン交換装置（１）のアニオン交換槽（２）とカチオン交換槽（３）を支持すると共に、上記に示した配管を接続し支持することができる。
具体的には、第２の集配水部材（７ｂ）の下室（１３ｂ）側の集配水部材（７ｂ１）に、下室（１３ｂ）を介して、第１の連通配管（９ａ）が連通しているが、この第１の連通配管（９ａ）は塔体胴（８ａ）の所定位置で支持されて、カチオン交換槽（３）を通過した原水の導入及び、アニオン交換樹脂の再生液である水酸化ナトリウム（NaOH）水溶液の排出に使用される。
The column body (8a) and the column body (8b) support the anion exchange vessel (2) and the cation exchange vessel (3) of the ion exchange apparatus (1) of the present invention, and connect the piping shown above Can be supported.
Specifically, the first communication pipe (9a) communicates with the water collecting and distributing member (7b1) on the lower chamber (13b) side of the second water collecting and distributing member (7b) via the lower chamber (13b). However, the first communication pipe (9a) is supported at a predetermined position of the column body (8a), and is an introduction of raw water that has passed through the cation exchange tank (3) and a regeneration solution of the anion exchange resin. Used for discharging sodium hydroxide (NaOH) aqueous solution.
また、第３の集配水部材（７ｃ）の上室（１３ｃ）側の集配水部材（７ｃ１）に、上室（１３ｃ）を介して、第２の連通配管（９ｂ）が連通しているが、この第２の連通配管（９ｂ）は塔体胴（８ａ）の所定位置で支持されて、カチオン交換槽（３）を通過した原水の排出及び、カチオン交換樹脂の再生液である塩酸（HCl）水溶液の導入に使用される。
さらに、第４の集配水部材（７ｄ）の下室（１３ｄ）側の集配水部材（７ｄ１）に、下室（１３ｄ）を介して、配管（１０ｂ）が連通しているが、この配管（１０ｂ）は塔体胴（８ａ）の所定位置で支持されて、原水の導入及び、カチオン交換樹脂の再生液である塩酸（HCl）水溶液の排出に使用される。
＜連通配管の切替＞
アニオン交換槽（２）の下方の平板（６ｂ）に第２の集配水部材（７ｂ）が設置され、この第２の集配水部材（７ｂ）の下室（１３ｂ）側の集配水部材（７ｂ１）は下室（１３ｂ）を介して第１の連通配管（９ａ）と接続されている。また、カチオン交換槽（３）の上方の平板（６ｃ）に第３の集配水部材（７ｃ）が設置され、この第３の集配水部材（７ｃ）の上室（１３ｃ）側の集配水部材（７ｃ１）は上室（１３ｃ）を介して第２の連通配管（９ｂ）と接続されている。さらに第１の連通配管（９ａ）と第２の連通配管（９ｂ）とは、イオン交換装置（１）の塔体の外部にて、第３の連通配管（９ｃ）を介して接続されている（図２には示さず、図３参照）。この連通配管（９ｃ）に弁（１１ａ）が設置されている。
In addition, the second communication pipe (9b) communicates with the water collection and distribution member (7c1) on the upper chamber (13c) side of the third water collection and distribution water member (7c) via the upper chamber (13c) The second communication pipe (9b) is supported at a predetermined position of the column body (8a), and discharges the raw water having passed through the cation exchange tank (3), and hydrochloric acid (HCl (reactant to cation exchange resin) ) Used for the introduction of aqueous solutions.
Furthermore, although the pipe (10b) communicates with the water collecting and distributing member (7d1) on the lower chamber (13d) side of the fourth water collecting and distributing water member (7d) via the lower chamber (13d), 10b) is supported at a predetermined position of the column body (8a) and used to introduce raw water and discharge aqueous hydrochloric acid (HCl) aqueous solution which is a regeneration solution of cation exchange resin.
<Switching of communication piping>
The second water collecting and distributing member (7b) is installed on the flat plate (6b) below the anion exchange tank (2), and the water collecting and distributing member (7b1) on the lower chamber (13b) side of the second water collecting and distributing member (7b) ) Is connected to the first communication pipe (9a) via the lower chamber (13b). Further, the third water collecting and distributing member (7c) is installed on the flat plate (6c) above the cation exchange tank (3), and the water collecting and distributing member on the upper chamber (13c) side of the third water collecting and distributing member (7c) (7c1) is connected to the second communication pipe (9b) via the upper chamber (13c). Furthermore, the first communication pipe (9a) and the second communication pipe (9b) are connected via the third communication pipe (9c) outside the column body of the ion exchange device (1). (Not shown in FIG. 2, see FIG. 3). A valve (11a) is installed in the communication pipe (9c).
また、第１の連通配管（９ａ）と第２の連通配管（９ｂ）の末端部に、再生液の給排手段としての弁（１１ｂ）および弁（１１ｃ）が設置されている。
そして、原水処理時は弁（１１ａ）を開き、弁（１１ｂ）および弁（１１ｃ）を閉じた状態で処理を行う。樹脂再生時は、弁（１１ａ）を閉じ、弁（１１ｂ）および弁（１１ｃ）を開いた状態で樹脂再生処理を行う。
Further, a valve (11b) and a valve (11c) as means for supplying and discharging the regenerating solution are installed at the end portions of the first communication pipe (9a) and the second communication pipe (9b).
Then, at the time of raw water treatment, the valve (11a) is opened and the treatment is performed with the valve (11b) and the valve (11c) closed. At the time of resin regeneration, the resin regeneration process is performed with the valve (11a) closed and the valve (11b) and the valve (11c) opened.
なお、本発明の装置のバリエーションとして、アニオン交換槽（２）やカチオン交換槽（３）を支持する部材を、塔体胴（８ａ）以外の、例えば骨材（骨組み）だけで支えたり、アングルを組んで支持することでも良く、装置全体としてアニオン交換槽（２）及び／又はカチオン交換槽（３）を安定して保持できる保持部材を備えることでよい。
また、上記態様ではアニオン交換槽（２）を上方に、カチオン交換槽（３）を下方に配置したイオン交換装置について説明しているが、図３には、本発明の装置の一例として、上方にカチオン交換樹脂を充填したカチオン交換槽（３）、下方にアニオン交換樹脂を充填したカチオン交換槽（２）を備えたイオン交換装置（１）の概略図を示す。図２の装置とはイオン交換槽の配置が異なっているものの、配管その他の態様は図２の装置に準じて理解することができる。
As a variation of the device of the present invention, a member supporting the anion exchange vessel (2) or the cation exchange vessel (3) may be supported by, for example, only the aggregate (framework) other than the tower cylinder (8a) It is sufficient to provide a holding member capable of stably holding the anion exchange tank (2) and / or the cation exchange tank (3) as a whole.
In the above embodiment, the ion exchange apparatus is described in which the anion exchange tank (2) is disposed upward and the cation exchange tank (3) is disposed downward. However, FIG. 3 illustrates the ion exchange apparatus as an example of the apparatus of the present invention. The schematic of the ion exchange apparatus (1) provided with the cation exchange tank (3) which filled the cation exchange resin in FIG. 1, and the cation exchange tank (2) which filled the anion exchange resin below is shown. Although the arrangement of the ion exchange tank is different from that of the apparatus of FIG. 2, the piping and other aspects can be understood according to the apparatus of FIG.
アニオン交換槽（２）とカチオン交換槽（３）のいずれの槽を塔の上方に配置するかは、本イオン交換装置と併用して用いる水処理装置や処理する被処理水の水質などによって異なるが、得られる処理水の水質の点から、通常、アニオン交換槽（２）が上方に、カチオン交換槽（３）が下方に配置される。
＜イオン交換フロー＞
本発明のイオン交換装置を用いた脱イオン水の生産（採水）時のフローを図４ａに示す。第１の連通配管（９ａ）と第２の連通配管（９ｂ）の末端部に、再生液の給排手段としての弁（１１ｂ）および弁（１１ｃ）を設けた場合、弁（１１ａ）を開、弁（１１ｂ）および弁（１１ｃ）を閉とし、カチオン交換槽（３）下部の給排配管（１０ｂ）から原水（被処理水）を供給する。この原水は、カチオン交換槽（３）の下室（１３ｄ）、集配水部材（７ｄ）、カチオン交換樹脂充填室（３ａ）、（円柱型集配水部材を使用する場合は不活性樹脂（４ｂ））、集配水部材（７ｃ）、上室（１３ｃ）、第２の連通配管（９ｂ）、第３の連通配管（９ｃ）、第１の連通配管（９ａ）、アニオン交換槽（２）の下室（１３ｂ）、集配水部材（７ｂ）、アニオン交換樹脂充填室（２ａ）、（円柱型集配水部材を使用する場合は不活性樹脂（４ａ））、集配水部材（７ａ）、アニオン交換槽（２）の上室（１３ａ）、アニオン交換槽（３）上部の給排配管（１０ａ）の順に流れ、処理水（脱イオン水）として取り出される。
Which tank of the anion exchange tank (2) or the cation exchange tank (3) is disposed above the column depends on the water treatment apparatus used in combination with the present ion exchange apparatus, the water quality of the water to be treated, etc. However, from the point of view of the quality of treated water to be obtained, the anion exchange tank (2) is usually disposed upward and the cation exchange tank (3) is disposed downward.
Ion exchange flow
The flow at the time of production (water collection) of deionized water using the ion exchange device of the present invention is shown in FIG. 4a. When the valve (11b) and the valve (11c) as supply / discharge means for the regenerating solution are provided at the end of the first communication pipe (9a) and the second communication pipe (9b), the valve (11a) is opened. The valve (11b) and the valve (11c) are closed, and raw water (water to be treated) is supplied from the supply / discharge pipe (10b) at the lower part of the cation exchange tank (3). This raw water is in the lower chamber (13d) of the cation exchange tank (3), the water collecting and distributing member (7d), the cation exchange resin filling chamber (3a), (in the case of using the cylindrical collecting and distributing member, the inactive resin (4b) ), Water collecting and distributing member (7c), upper chamber (13c), second communication pipe (9b), third communication pipe (9c), first communication pipe (9a), anion exchange tank (2) Chamber (13b), water collecting and distributing member (7b), anion exchange resin filled chamber (2a), (in case of using cylindrical collecting and distributing member inactive resin (4a)), water collecting and distributing member (7a), anion exchange tank It flows in order of the upper chamber (13a) of (2) and the supply-and-discharge piping (10a) of the anion exchange tank (3) upper part, and is taken out as a treated water (deionized water).
アニオン交換樹脂充填室（２ａ）に充填されている使用済のアニオン交換樹脂及びカチオン交換樹脂充填室（３ａ）に充填されている使用済のカチオン交換樹脂の再生時のフローを図３ｂに示す。第１の連通配管（９ａ）と第２の連通配管（９ｂ）の末端部に、再生液の給排手段としての弁（１１ｂ）および弁（１１ｃ）を設けた場合、弁（１１ａ）を閉、弁（１１ｂ）および弁（１１ｃ）を開とし、アニオン交換槽（３）上部の給排配管（１０ａ）からＮａＯＨなどのアルカリ溶液を供給すると共に、配管（９ｅ）からＨＣｌなどの酸溶液を供給する。 The flow at the time of regeneration of the used anion exchange resin filled in the anion exchange resin filled chamber (2a) and the used cation exchange resin filled in the cation exchange resin filled chamber (3a) is shown in FIG. 3b. When the valve (11b) and the valve (11c) as supply / discharge means for the regeneration liquid are provided at the end of the first communication pipe (9a) and the second communication pipe (9b), the valve (11a) is closed. , Valve (11b) and valve (11c) are opened, and an alkaline solution such as NaOH is supplied from the supply and discharge pipe (10a) at the top of the anion exchange tank (3), and an acid solution such as HCl is supplied from the pipe (9e) Supply.
アルカリ溶液は、給排配管（１０ａ）から、アニオン交換槽（２）の上室（１３ａ）、集配水部材（７ａ）、（円柱型集配水部材を使用する場合は不活性樹脂（４ａ））、アニオン交換樹脂充填室（２ａ）、集配水部材（７ｂ）、アニオン交換槽（２）の下室（１３ｂ）、第１の連通配管（９ａ）、配管９ｄの順に流れ、再生廃水（アルカリ）として流出し、これにより、アニオン交換樹脂充填室（２ａ）内のアニオン交換樹脂が再生される。
The alkaline solution is supplied from the water supply and discharge pipe (10a) to the upper chamber (13a) of the anion exchange tank (2), the water collecting and distributing member (7a), (in the case of using the cylindrical collecting and distributing member inactive resin (4a)) , Anion exchange resin filled chamber (2a), water collecting / distributing member (7b), lower chamber (13b) of anion exchange tank (2), first communication pipe (9a),
酸溶液は、配管９ｅから第２の連通配管９ｂを経て、カチオン交換槽（３）の上室（１３ｃ）、集配水部材（７ｃ）、（円柱型集配水部材を使用する場合は不活性樹脂（４ｂ））、カチオン交換樹脂充填室（３ａ）、集配水部材（７ｄ）、カチオン交換槽（３）の下室（１３ｄ）、カチオン交換槽（３）下部の給排配管（１０ｂ）の順に流れ、再生廃水（酸）として流出し、これによりカチオン交換樹脂充填室（３ａ）内のカチオン交換樹脂が再生される。
The acid solution passes through the
再生終了後は、図３ｂで示されたＨＣｌ溶液、ＮａＯＨ溶液の代わりに、それぞれ純水を通水し、各経路及び樹脂に残留する再生液を押し出した後、必要に応じて純水でアニオン交換槽（２）およびカチオン交換槽（３）を個別に洗浄しながら洗浄排水を排出し、その後、純水をアニオン交換槽（２）とカチオン交換槽（３）との間で所定時間循環させ、次いで、採水工程に復帰する。この再生に際しては、アニオン交換樹脂およびカチオン交換樹脂は平板（６）と集配水部材（７）により移動を阻止されており、互いに混ざり合うことはない。また、再生用の酸溶液がアニオン交換槽（２）に流入し、またはアルカリ溶液がカチオン交換槽（３）に混入することはない。加えて、カチオン交換樹脂とアニオン交換樹脂とを同時に並行して再生することができるため、再生時間を短くすることができる。 After the regeneration is completed, instead of the HCl solution and the NaOH solution shown in FIG. 3b, pure water is passed through, and the regeneration solution remaining on each path and resin is pushed out, and then anions are made with pure water if necessary. While washing the exchange tank (2) and the cation exchange tank (3) separately, drain the wash drainage, and then circulate pure water between the anion exchange tank (2) and the cation exchange tank (3) for a predetermined time Then, return to the water sampling process. In this regeneration, the anion exchange resin and the cation exchange resin are prevented from moving by the flat plate (6) and the water collecting and distributing member (7), and are not mixed with each other. In addition, the acid solution for regeneration does not flow into the anion exchange tank (2) or the alkali solution does not mix in the cation exchange tank (3). In addition, since the cation exchange resin and the anion exchange resin can be simultaneously regenerated in parallel, the regeneration time can be shortened.
本発明のイオン交換装置は、アニオン交換槽（２）とカチオン交換槽（３）を各々独立させたまま、アニオン交換槽（２）を上方に、カチオン交換槽（３）を下方に配置し、あるいはカチオン交換槽（３）を上方に、アニオン交換槽（２）を下方に配置している。このような配置とするために、塔体胴（８ａ）や骨組み等の保持体によりアニオン交換槽（２）及び／又はカチオン交換槽（３）を支持している。このような構成とすることで、アニオン交換槽（２）とカチオン交換槽（３）を各々横置きにするよりも設置スペースが小さくてすむ。また、アニオン交換槽（２）とカチオン交換槽（３）とを連通する配管も短くてすむ。さらに、使用する集配水部材（７）の形状などを工夫したことおよびアニオン交換槽（２）およびカチオン交換槽（３）中の樹脂のイオン交換効率を勘案してこれらの樹脂層の高さを工夫することで塔体の高さを極力低くできる。さらに、上下にイオン交換槽が配置されているため、イオン交換装置の維持管理（メンテナンス）も効率的に行うことができる。 In the ion exchange apparatus of the present invention, the anion exchange tank (2) is disposed upward and the cation exchange tank (3) is disposed downward, while the anion exchange tank (2) and the cation exchange tank (3) are independent of each other. Alternatively, the cation exchange vessel (3) is disposed at the upper side, and the anion exchange vessel (2) is disposed at the lower side. In order to achieve such an arrangement, the anion exchange tank (2) and / or the cation exchange tank (3) are supported by a holder such as a column body (8a) or a framework. With such a configuration, the installation space is smaller than when the anion exchange tank (2) and the cation exchange tank (3) are placed horizontally. Further, the pipe connecting the anion exchange tank (2) and the cation exchange tank (3) can be short. Furthermore, in consideration of the shape of the water collection and distribution member (7) used and the ion exchange efficiency of the resin in the anion exchange tank (2) and the cation exchange tank (3), the heights of these resin layers are The height of the tower can be reduced as much as possible by devising it. Furthermore, since the ion exchange tanks are disposed above and below, maintenance (management) of the ion exchange apparatus can be efficiently performed.
また、上記態様ではアニオン交換槽（２）を上方に、カチオン交換槽（３）を下方に配置したイオン交換装置について説明しているが、図３には、本発明の装置の一例として、上方にカチオン交換樹脂を充填したカチオン交換槽（３）、下方にアニオン交換樹脂を充填したカチオン交換槽（２）を備えたイオン交換装置（１）の概略図を示す。図２の装置とはイオン交換槽の配置が異なっているものの、配管その他の態様は図２の装置に準じて理解することができる。
＜集配水部材＞
上記したように、集配水部材（７）を円錐形状のものを使用することで不活性樹脂（４）は不要とでき、アニオン交換槽（２）中の樹脂層の高さをカチオン交換槽（３）中の樹脂層の高さの１．５〜２．５倍程度、好ましくは２倍程度とするとよい。ただし、本発明において、集排水部材（７）として円錐形状のものを使用した場合であっても、不活性樹脂を用いた場合を排除するものではなく、下記の通り、必要に応じて不活性（イナート）樹脂を充填して使用すればよい。
In the above embodiment, the ion exchange apparatus is described in which the anion exchange tank (2) is disposed upward and the cation exchange tank (3) is disposed downward. However, FIG. 3 illustrates the ion exchange apparatus as an example of the apparatus of the present invention. The schematic of the ion exchange apparatus (1) provided with the cation exchange tank (3) which filled the cation exchange resin in FIG. 1, and the cation exchange tank (2) which filled the anion exchange resin below is shown. Although the arrangement of the ion exchange tank is different from that of the apparatus of FIG. 2, the piping and other aspects can be understood according to the apparatus of FIG.
<Water supply and distribution member>
As described above, the inactive resin (4) can be made unnecessary by using the water collecting and distributing member (7) in a conical shape , and the height of the resin layer in the anion exchange tank (2) The height of the resin layer in 3) may be about 1.5 to 2.5 times, preferably about 2 times the height of the resin layer. However, in the present invention, even when the conical member is used as the water collection and drainage member (7), the case of using the inactive resin is not excluded, and as described below, the case where the inactive resin is used (Inert) A resin may be filled and used.
集配水部材（７）を円筒形状のものを使用する場合には、アニオン交換樹脂充填室（２ａ）およびカチオン交換樹脂充填室（３ａ）の上部に、それぞれ不活性樹脂（４ａ）および（４ｂ）を充填しており、カチオン交換樹脂及びアニオン交換樹脂の流動が防止され、採水時及び再生時に液が均等にカチオン交換樹脂及びアニオン交換樹脂と接触するようにしており、高水質の脱イオン水が得られると共に、十分に再生が行われるようになる。 When using a cylindrical shape for the water collecting and distributing member (7), inactive resins (4a) and (4b) are respectively disposed above the anion exchange resin filled chamber (2a) and the cation exchange resin filled chamber (3a). The cation exchange resin and anion exchange resin are prevented from flowing, and the liquid is uniformly in contact with the cation exchange resin and anion exchange resin at the time of water collection and regeneration, and deionized water of high water quality is obtained. As well as sufficient regeneration.
上記実施の形態では、アニオン交換槽（２）の底部の鏡板（５ｂ）とカチオン交換槽（３）の頂部の鏡板（５ｃ）とが配管（連通手段）を介して連通されているが、連通手段は、イオン交換装置のイオン交換樹脂槽の各々の外にあればよい。例えば、塔体胴（８）を備えた塔体の場合、塔体の外にあってもよいが、スペースが許容されるのであれば塔体内のイオン交換槽の下側に配置することでも良い。また、この実施の形態では、３個の弁（１１ａ）、（１１ｂ）、（１１ｃ）を用いているが、２個の三方弁を用いて流路切り替えを行うようにしてもよい。 In the above embodiment, the end plate (5b) at the bottom of the anion exchange vessel (2) and the end plate (5c) at the top of the cation exchange vessel (3) are communicated via piping (communication means). The means may be outside each of the ion exchange resin baths of the ion exchange device. For example, in the case of a column body provided with a column body (8), it may be outside the column body, but may be disposed below the ion exchange tank in the column body if space is allowed. . In addition, although three valves (11a), (11b), and (11c) are used in this embodiment, the flow path switching may be performed using two three-way valves.
集配水部材（７）が平板に設置される具体的態様としては、図５ｄに示すように円錐型集配水部材が平板に設置された状態（断面拡大図）に配置することを挙げることができる。
円錐型集配水部材は図５ａに示すように雄ネジ様の凸部を有した円錐形状の集配水部品と図５ｃに示すような凸部に嵌合できる雌ネジ様の凹部を有し、図５ｂのように平板の両側から両者を固定することができる。ここで、図５ａに示す雄ネジ様の凸部では、その内部が中空を有し、当該中空部分を原水あるいはNaOH、HClといった再生液が通過できる構造とするのがよい。
As a specific embodiment in which the water collecting and distributing member (7) is installed on a flat plate, as shown in FIG. 5d, it can be mentioned that the conical water collecting and distributing member is placed on the flat plate (cross section enlarged view) .
The cone type water collecting and distributing member has a conical water collecting and distributing part having a male screw like convex part as shown in FIG. 5a and a female screw like concave part which can be fitted to the convex part as shown in FIG. Both can be fixed from both sides of the flat plate as in 5b. Here, it is preferable that the male screw-like convex portion shown in FIG. 5a has a hollow inside so that the hollow portion can pass raw water or a regeneration solution such as NaOH or HCl.
円錐型集配水部材を使用することで、（ｉ）原水の給排水時や再生液による再生時に大流量での処理が可能であり、（ｉｉ）再生液による樹脂再生後の再生廃液を速やかにイオン交換部より排水でき、（ｉｉｉ）複数の集配水部材を使用した場合でも、集配水部材間での原水や再生液の流速のバラツキは少なくなると考えられる。
（ｉ）の理由として、実際に原水あるいは再生液を集配水するのは、円錐形状の内の傾斜部分（傘形状部分）であるところ、比較的円錐形状の頂点と平板との距離が小さく、すなわち円錐形状の高さが低いため、頂点部分のみならず傾斜部分全体から集配水されることとなる。従って、集配水に関与する部分の面積が比較的大きくなるため、原水の通液や再生水の押出による圧力損失も比較的少なくてすむこととなる。このため、原水処理時や再生時の大流量であっても円滑に通液でき、大量処理、速やかな再生に適している。
By using a conical water collecting and distributing member, (i) treatment with large flow rate is possible at the time of water supply and drainage of raw water and regeneration with a regeneration solution, and (ii) ionizing regeneration waste after resin regeneration with regeneration solution promptly. It is possible that water can be drained from the replacement part, and (iii) even when a plurality of water collecting and distributing members are used, variation in the flow velocity of the raw water and the regeneration solution between the water collecting and distributing members is considered to be reduced.
As the reason for (i), although it is the inclined portion (the umbrella-shaped portion) in the conical shape that actually collects the raw water or the regeneration solution, the distance between the apex of the conical shape and the flat plate is relatively small, That is, since the height of the conical shape is low, water is collected and distributed not only from the top portion but also from the entire inclined portion. Therefore, since the area of the portion involved in collecting and distributing water becomes relatively large, the pressure loss due to the flow of the raw water and the extrusion of the reclaimed water can be relatively small. For this reason, even if it is a large flow rate at the time of raw water treatment and reproduction | regeneration, it can flow smoothly, and it is suitable for mass processing and rapid reproduction | regeneration.
（ｉｉ）の理由として、再生処理後に再生廃液が残存すればイオン交換樹脂が適正に働かなくなるため、速やかに再生廃液を輩出する必要がある。円錐形状の集配水部材の場合、比較的に円錐形状の頂点と平板との距離が小さく、すなわち円錐形状の高さが低いため、頂点部分のみならず傾斜部分全体から再生廃液が排水されることとなる。また円錐の裾野部分は平板に対し、概ね平面的に繋がっていることから、再生廃液が溜まるような構造となっていない。このため、再生廃液は速やかに排出され、短時間での再生が可能となり、効率的にイオン交換装置を稼働することが可能となる。 As the reason of (ii), since the ion exchange resin does not work properly if the regenerated waste liquid remains after the regeneration treatment, it is necessary to produce the regenerated waste liquid promptly. In the case of a cone-shaped water collecting and distributing member, the regeneration waste liquid is drained not only from the apex but also from the entire inclined portion because the distance between the apex of the cone and the flat plate is relatively small, that is, the height of the cone is small. It becomes. In addition, since the base of the cone is generally flatly connected to the flat plate, there is no structure in which the regeneration waste liquid is collected. For this reason, the regeneration waste liquid is discharged quickly, and regeneration in a short time becomes possible, and it becomes possible to operate the ion exchange apparatus efficiently.
（ｉｉｉ）の理由として、上記（ｉ）に記載したように、円錐形状の集配水部材では原水の通液や再生水の押出による圧力損失も比較的少なくてすむため、円滑に通液でき、流速のバラツキは少なくなる。
集配水部材の平板への固定方法については特に制限はなく、上記の尾ネジと雌ネジによる固定のみならず、接着剤を使って固定してもよい。さらに、金属製などの材質によってはハンダ、溶接によって固定することもできる。固定化されたものが図５ｄに示す状態である。
As the reason for (iii), as described in (i) above, the cone-shaped water collecting and distributing member allows relatively low pressure loss due to the passage of raw water and the extrusion of the reclaimed water, so that the fluid can be smoothly flowed. Variation of the
There is no restriction | limiting in particular about the fixing method to the flat plate of a water collection and delivery water member, You may fix using an adhesive agent besides the fixation by said tail screw and an internal thread. Furthermore, depending on the material such as metal, it can be fixed by soldering or welding. The immobilized state is shown in FIG. 5d.
また、図６ａに示すように円柱型集配水部材が平板に設置された状態（断面拡大図）に配置してもよい。この円柱型集配水部材を平板へ固定する方法は、上記の円錐型集配水部材の場合と同様である。この場合、図６ｂに示すように上下の平板で囲まれた側の円柱型集配水部材が突出した部分を、イナート樹脂（不活性樹脂）で充填した状態（断面拡大図）として配置するとよい。 Moreover, you may arrange | position in the state (cross section enlarged view) installed in the flat plate as shown in FIG. The method of fixing the cylindrical water collecting and distributing member to the flat plate is the same as that of the conical water collecting and distributing member described above. In this case, as shown in FIG. 6 b, it is preferable to arrange the portion where the cylindrical water collecting and distributing member on the side surrounded by the upper and lower flat plates protrudes, filled with inert resin (inert resin) (cross section enlarged view).
上記の通り、集配水部材の平板への設置は、集配水部材の大きさ、形状、イオン交換装置、平板の大きさ、必要とする原水処理量など、種々の要因にを勘案して集配水部材の設置数や設置パターンを適宜決定することができる。
この中で、本発明のイオン交換装置は、原水処理能力を向上させるために、集配水部材を平板に所定間隔で設置したものである。このため、集配水部材の平板への設置は、図７ａに示すように平板の中心部から一定間隔離れた複数の同心円上に一定間隔毎に設置したり、平板上に縦横に一定間隔となるように設置するとよい。
As described above, the installation of the water collection and distribution member on the flat plate takes into consideration various factors such as the size and shape of the water collection and distribution water member, the ion exchange device, the size of the flat plate, and the required raw water treatment amount. The installation number and installation pattern of the members can be determined as appropriate.
Among these, in the ion exchange device of the present invention, the water collecting and distributing member is installed on a flat plate at a predetermined interval in order to improve the raw water treatment capacity. For this reason, as shown in FIG. 7a, installation of the water collection and distribution member on the flat plate is installed on a plurality of concentric circles spaced apart from the center of the flat plate at constant intervals, or at constant intervals longitudinally and horizontally on the flat plate It is good to install it.
具体的には、図７ｂに示すように遮水性の平板中心点を含み縦横に均等配置したり、図７ｃに示すように平板中心点を含み各列ごとにずらして斜め方向に均等配置したり、図７ｄに示すように平板中心点より一定の間隔を有した同心円上均等配置する、などの態様を例示することができる。
また集配水部材の形状にもよるが、平板のイオン交換樹脂層の側へ円錐形状にて突き出すように設置したり、集配水部材が円筒形状を有する場合には、平板の表裏両面から突き出すように設置するとよい。
Specifically, as shown in FIG. 7 b, the water blocking flat plate center points are evenly distributed in the vertical and horizontal directions, or as shown in FIG. 7 c, the flat plate center points are offset and each row is equally distributed in an oblique direction. It is possible to illustrate an aspect such as concentrically arranging at regular intervals from the flat plate center point as shown in FIG. 7 d.
In addition, depending on the shape of the water collection and distribution member, it may be installed so as to protrude in a conical shape to the side of the flat ion exchange resin layer or when the water collection and distribution member has a cylindrical shape It is good to install in
さらに、平板とイオン交換樹脂層の間に、粒状の不活性樹脂を充填してもよく、その場合、アニオン交換槽上部の集配水部材及びカチオン交換槽上部の集配水部材がそれぞれ不活性樹脂中に埋設された層を有する態様を取ることができる。
円筒形状の集配水部材を設置する場合、平板とイオン交換樹脂層の間に集配水部材の突出部分が生じる。その場合、アニオン交換樹脂又はカチオン交換樹脂を集配水部材の当該突出部分を埋設するように充填すると、原水処理時においては集配水部材の入り口付近（例えば図４ｂのアニオン交換槽及びカチオン交換槽のそれぞれの上方の集配水部材の下端付近）から原水が集配水部材へ入りこみ、集配水部材の下端より上方のアニオン交換樹脂又はカチオン交換樹脂は実質的にイオン交換に関与できず、無駄になってしまうおそれがある。
Furthermore, a granular inactive resin may be filled between the flat plate and the ion exchange resin layer, in which case the water collecting and distributing member at the top of the anion exchange tank and the water collecting and distributing member at the top of the cation exchange tank are each in the inert resin. It is possible to take an aspect having a layer embedded in the
When installing a cylindrical shaped water collecting and distributing member, a projecting portion of the water collecting and distributing member is generated between the flat plate and the ion exchange resin layer. In that case, when the anion exchange resin or the cation exchange resin is filled so as to bury the projecting portion of the water collecting and distributing member, the vicinity of the inlet of the water collecting and distributing member (for example, the anion exchange tank and the cation exchange tank of FIG. Raw water enters the water collection and distribution members from near the lower end of the upper water collection and distribution members, and the anion exchange resin or cation exchange resin above the lower ends of the water collection and distribution members can not participate in ion exchange substantially and is wasted There is a risk of
すなわち、図６ａに示すように、円筒形状の集配水部材を使用した場合、平板とイオン交換樹脂層の間に集配水部材の突出部分が生じる。ここで、集配水部材はどこであっても水は通すがイオン交換樹脂の通過を阻止する構造を有しているものの、原水を通水すれば原水の流れとして集配水部材の下端に最初に接触するため、原水は集配水部材の下端部分に集中して流れるようになるからである。このため、図６ｂに示すように、集配水部材の下端より上方のアニオン交換樹脂及びカチオン交換樹脂を、イオン交換作用を有しないダミー樹脂として不活性樹脂を充填しておくことで、高価なイオン交換樹脂を有効に使用できるというメリットがある。 That is, as shown in FIG. 6a, when a cylindrical water collecting and distributing member is used, a projecting portion of the water collecting and distributing member is generated between the flat plate and the ion exchange resin layer. Here, although the water collection and distribution member has a structure that allows water to pass anywhere but blocks the passage of the ion exchange resin, if the raw water passes through it, it will first contact the lower end of the water collection and distribution member as a raw water flow. Because the raw water is concentrated on the lower end portion of the water collecting and distributing member, it flows. For this reason, as shown in FIG. 6b, the expensive ion can be obtained by filling the anion exchange resin and the cation exchange resin above the lower end of the water collection and distribution member with the inactive resin as a dummy resin having no ion exchange action. There is an advantage that the exchange resin can be used effectively.
不活性樹脂としては、イオン交換樹脂よりも比重の小さいポリエチレン系又はポリプロピレン系樹脂などが用いられる。不活性樹脂の粒径は、イオン交換樹脂よりも大きい方が好ましい。
＜装置構成の詳細＞
本発明のイオン交換装置において、アニオン交換槽（２）およびカチオン交換槽（３）の断面が略円形状の場合、その直径を５００ｍｍ〜３０００ｍｍとするとよい。このような大きな直径を有するアニオン交換槽（２）およびカチオン交換槽（３）とすることで、原水処理量は極めて大きくなり、例えば半導体等の電子材料製造にも好適となる。
As the inert resin, a polyethylene-based or polypropylene-based resin having a specific gravity smaller than that of the ion exchange resin is used. The particle size of the inert resin is preferably larger than that of the ion exchange resin.
<Details of device configuration>
In the ion exchange device of the present invention, when the cross sections of the anion exchange tank (2) and the cation exchange tank (3) are substantially circular, the diameter may be 500 mm to 3000 mm. By using the anion exchange tank (2) and the cation exchange tank (3) having such a large diameter, the amount of raw water to be treated becomes extremely large and, for example, it is also suitable for producing electronic materials such as semiconductors.
また、アニオン交換槽（２）とカチオン交換槽（３）との断面直径を同じ長さとすることで、アニオン交換槽（２）下部とカチオン交換槽（３）上部とを覆う、イオン交換装置塔体胴（８）を設置して、イオン交換装置（１）として堅牢性を有するものとなる。
本発明においては、アニオン交換樹脂層の層高を５００ｍｍ〜２０００ｍｍ、より好ましくは７５０ｍｍ〜１５００ｍｍとするとよく、また、カチオン交換樹脂層の層高を４００ｍｍ〜８００ｍｍ、より好ましくは５００ｍｍ〜７５０ｍｍとするとよい。さらに、アニオン交換樹脂層の層高をカチオン交換樹脂層の層高の１．５倍〜２．５倍、より好ましくはおおむね２倍とするとよい。
In addition, by making the cross-sectional diameters of the anion exchange tank (2) and the cation exchange tank (3) the same length, an ion exchange device tower that covers the lower part of the anion exchange tank (2) and the upper part of the cation exchange tank (3) By installing the body torso (8), the ion exchange device (1) becomes robust.
In the present invention, the layer height of the anion exchange resin layer may be 500 mm to 2000 mm, more preferably 750 mm to 1500 mm, and the layer height of the cation exchange resin layer may be 400 mm to 800 mm, more preferably 500 mm to 750 mm. . Furthermore, the layer height of the anion exchange resin layer may be 1.5 times to 2.5 times, more preferably approximately twice the layer height of the cation exchange resin layer.
本発明のイオン交換装置は、カチオン交換槽の上にアニオン交換槽（２）を設置すると共に、アニオン交換槽（２）下部とカチオン交換槽（３）上部とを覆う塔体胴（８）を備えたものである。さらに、アニオン交換槽（２）下端とカチオン交換槽（３）上端との距離が５００ｍｍ〜１０００ｍｍとするとよい。このような構造とすることで、装置の保守管理に保守要員等が装置に入りこめ、装置の適正管理がより便宜となると共に、原水あるいは再生液の導入や、処理水、再生廃液の排出に必要な配管類をアニオン交換槽（２）下部とカチオン交換槽（３）上部の空間に設置でき、装置のコンパクト化を実現できる。 In the ion exchange apparatus of the present invention, a column body cylinder (8) is provided which installs an anion exchange vessel (2) on a cation exchange vessel and covers the lower part of the anion exchange vessel (2) and the upper part of the cation exchange vessel (3). It is equipped. Further, the distance between the lower end of the anion exchange tank (2) and the upper end of the cation exchange tank (3) is preferably 500 mm to 1000 mm. With such a structure, maintenance personnel and the like fit into the apparatus for maintenance and management of the apparatus, and proper management of the apparatus becomes more convenient, and introduction of raw water or regenerating solution, discharge of treated water, regenerating waste solution Necessary piping can be installed in the space of the anion exchange tank (2) lower part and the cation exchange tank (3) upper part, and the miniaturization of the device can be realized.
また、アニオン交換槽（２）やカチオン交換槽（３）の側壁に、イオン交換装置（１）の保守管理のために、装置の外から装置内部の樹脂充填状況、運転状況などを観察できるように、透明な樹脂、ガラス等の透明材料を備えた窓や、内部に充填されている樹脂を交換するためのイオン交換樹脂の供給口および排出口を設置することが好ましい。窓、イオン交換樹脂の供給口および排出口の大きさ、形状および設置位置は適宜設計し適用すればよく、窓の透明材質も運転時、再生時等に支障がない強度を有しておればよい。さらに、イオン交換装置（１）の保守管理のために、アニオン交換槽（２）やカチオン交換槽（３）の側壁やこれらの交換部の間の塔体胴（８）およびアニオン交換槽（２）やカチオン交換槽（３）それぞれの上下にもうけた鏡板部にマンホールなどの人が出入りできる設備を設置することが好ましい。
＜イオン交換装置の使用方法＞
本発明のイオン交換装置（１）の運転において、原水（被処理水）をカチオン交換槽（３）に、線速度（LV）で５５ｍ／ｈｒ（時間）以上、通常は５５〜７５ｍ／ｈｒ（時間）で通水するとよい。このような大流量の原水を流しても、本発明のイオン交換装置では十分に処理できる。また同様に再生液を導入する場合にも、流速を早めることで再生時間を短縮し、原水処理の作業効率を向上させることができる。
In addition, on the side walls of the anion exchange tank (2) and the cation exchange tank (3), for maintenance and management of the ion exchange device (1), it is possible to observe the resin filling condition inside the device and the operating condition from outside the device. Preferably, a window provided with a transparent material such as a transparent resin or glass, and a supply port and an outlet of an ion exchange resin for replacing the resin filled inside are provided. The size, shape, and installation position of the window and the ion exchange resin supply and discharge ports may be designed and applied as appropriate, and the transparent material of the window also has a strength that does not hinder the operation and regeneration. Good. Furthermore, for maintenance of the ion exchange apparatus (1), the anion exchange tank (2), the side wall of the cation exchange tank (3), the column body (8) between these exchange parts, and the anion exchange tank (2) ) and cation exchange chamber (3) we are preferable to install a facility human, such as a manhole in the end plate portion provided on each of the upper and lower can enter and exit.
<How to Use Ion Exchanger>
In the operation of the ion exchange apparatus (1) of the present invention, raw water (water to be treated) is added to the cation exchange tank (3) at a linear velocity (LV) of 55 m / hr or more, usually 55 to 75 m / hr It is good to let water flow in time). Even if such a large flow rate of raw water flows, the ion exchange apparatus of the present invention can be sufficiently treated. Similarly, in the case of introducing the regenerating solution, it is possible to shorten the regenerating time by increasing the flow velocity, and to improve the working efficiency of the raw water treatment.
例えば、イオン交換装置の塔径に対する通水量として以下を目安とするとよい。 For example, the following may be used as a standard for the amount of water flow with respect to the column diameter of the ion exchange apparatus.
以下実施例により本発明を具体的に説明するが、本発明はこれらの実施例のみに限定されるものではない。
以下の実施例において、ＣａＣＯ３、シリカ（ＳｉＯ２）、ホウ素（Ｂ）の量は以下により分析した。
分析装置；アジレント・テクノロジー株式会社製 ＩＣＰ−ＭＳ Agilent7500
分析方法はＪＩＳ Ｋ−０１３３に準拠して行った。
ＴＯＣ濃度は ＧＥ 社製装置（型式 シーバス５００ＲＬｅ ）を使用して測定した。
比抵抗値は 東亜ＤＫＫ 社製装置（型式 ＭＸ−４ ）を使用して測定した。
EXAMPLES The present invention will be specifically described by way of the following examples, but the present invention is not limited to these examples.
In the following examples, the amounts of CaCO 3 , silica (SiO 2 ) and boron (B) were analyzed by the following.
Analyzer: Agilent Technologies ICP-MS Agilent 7500
The analysis was performed in accordance with JIS K-0133.
The TOC concentration was measured using an apparatus manufactured by GE (Model Seabus 500RLe).
The specific resistance value was measured using a Toa DKK apparatus (model MX-4).
実施例１ 本発明のイオン交換装置による純水の製造
図２ａに示す装置を用い、以下の条件で純水を製造した。
原水（被処理水）水質；
ホウ素 ：８０ｎｇ／Ｌ
ＩＣ ：１ｍｇ／Ｌ ａｓ ＣａＣＯ３
ＳｉＯ２：２０μｇ／Ｌ
Ｎａ ：１ｍｇ／Ｌ ａｓ ＣａＣＯ３
Ｃｌ ：０．４ｍｇ／Ｌ ａｓ ＣａＣＯ３
ホウ素ＢＴＣ：Ｂ≦１ｎｇ／Ｌ＝０．４３ｍｇ−Ｂ／Ｌ−Ｒ
ＴＯＣ ：１０ｐｐｂ
イオン交換樹脂；
カチオン交換樹脂：ダウ・ケミカル社製MONOSPHERE 650C UPW(H)
アニオン交換樹脂：ダウ・ケミカル社製MONOSPHERE 550A UPW(OH)
不活性樹脂：ダウ・ケミカル社製IF-62
通水条件；
カチオン交換槽：ＳＶ＝１５０／ｈ（時間）
アニオン交換槽：ＳＶ＝７５／ｈ（時間）
再生条件（再生液濃度）；
ＮａＯＨ：４．０質量％
ＨＣｌ ：４．０質量％
装置の大きさ
アニオン交換槽の直径；７００ｍｍ
アニオン交換樹脂層の高さ；１０００ｍｍ
カチオン交換槽の直径；７００ｍｍ
カチオン交換樹脂層の高さ；５００ｍｍ
新品樹脂に上記通水条件にて原水を給水した後、使用したイオン交換樹脂に対して上記再生液を用いて再生３０分、超純水により押し出しを３０分行った。その後、原水を用いて洗浄を１５分実施した後、引き続き原水を通水して、洗浄終了後を起点とした通水時間ごとのＴＯＣ濃度を測定した。
Example 1 Production of Pure Water by Ion Exchanger of the Present Invention Pure water was produced under the following conditions using the apparatus shown in FIG. 2a.
Raw water (treated water) water quality;
Boron: 80 ng / L
IC: 1 mg / L as CaCO 3
SiO 2 : 20 μg / L
Na: 1 mg / L as CaCO 3
Cl: 0.4 mg / L as CaCO 3
Boron BTC: B ≦ 1 ng / L = 0.43 mg-B / L-R
TOC: 10 ppb
Ion exchange resin;
Cation exchange resin: Dow Chemical's MONOSPHERE 650C UPW (H)
Anion exchange resin: Dow Chemical's MONOSPHERE 550A UPW (OH)
Inactive resin: Dow Chemical's IF-62
Water flow conditions;
Cation exchange tank: SV = 150 / h (hours)
Anion exchange tank: SV = 75 / h (hours)
Regeneration conditions (regeneration solution concentration);
NaOH: 4.0 mass%
HCl: 4.0% by mass
Device size Anion exchange tank diameter: 700 mm
Anion exchange resin layer height; 1000 mm
Cation exchange tank diameter; 700 mm
Cation exchange resin layer height; 500 mm
After raw water was supplied to a new resin under the above water flow conditions, the ion exchange resin used was regenerated with the above regeneration solution for 30 minutes and extruded with ultrapure water for 30 minutes. Thereafter, the raw water was used for washing for 15 minutes, and then the raw water was passed through to measure the TOC concentration for each water passing time starting from the end of washing.
その結果、下記図８に示すように、新品樹脂を使用した場合、本発明のイオン交換装置においては３０分以内にＴＯＣが３μｇ／Ｌ未満となった。
実施例２ ストレーナー設置の影響
図２ａに示す装置に、図５で示される円錐形状の集配水部材または、図６で示される円筒形状の集配水部材を用い、実施例１と同じ条件でイオン交換樹脂に上記通水条件にて回収水を給水し、被処理水の比抵抗値を測定した。なお円筒形状の集配水部材を用いた場合は、図６ｂで示されるように、不活性樹脂層を設置した場合と設置しなかった場合の両方を実施した。
As a result, as shown in FIG. 8 below, when a new resin was used, TOC became less than 3 μg / L within 30 minutes in the ion exchange device of the present invention.
Example 2 Influence of Strainer Installation Ion exchange is performed under the same conditions as in Example 1 using the conical water collecting / distributing member shown in FIG. 5 or the cylindrical water collecting / distributing member shown in FIG. 6 in the device shown in FIG. The recovered water was supplied to the resin under the above water flow conditions, and the specific resistance value of the water to be treated was measured. In addition, when cylindrical collecting and distributing members were used, as FIG. 6 b showed, the case where an inactive resin layer was installed, and both cases where it did not install were implemented.
その結果、図９に示すように、円錐形状の集配水部材を設置した場合は、円筒形状の集配水部材（不活性樹脂層あり）よりも若干、比抵抗値の低下が遅くなり、すなわちイオン交換の処理容量が大きいことが分かる。一方、円筒形状の集配水部材（不活性樹脂層なし）の場合は、比抵抗値は早く低下した。このことは、イオン交換能力がある樹脂が円筒形状の集配水部材では有効に被処理水（回収水）と接触できず、みかけ上イオン交換能力を低下させてしまっていることと考えられる。 As a result, as shown in FIG. 9, when the conical water collecting and distributing member is installed, the decrease in specific resistance value is slightly slower than that of the cylindrical collecting and distributing member (with inactive resin layer), ie, ions It turns out that the processing capacity of exchange is large. On the other hand, in the case of the cylindrical water collecting and distributing member (without the inert resin layer), the specific resistance value rapidly decreased. This is considered to be that the resin having the ion exchange capacity can not effectively contact the water to be treated (recovered water) in the cylindrical water collecting and distributing member, and the ion exchange capacity is apparently reduced.
１ イオン交換装置
２ アニオン交換槽
２ａ アニオン交換樹脂充填室
２ｂ アニオン交換槽円筒部
３ カチオン交換槽
３ａ カチオン交換樹脂充填室
３ｂ カチオン交換槽円筒部
４ａ、４ｂ 不活性樹脂
５ａ、５ｂ、５ｃ、５ｄ 鏡板
６ａ、６ｂ、６ｃ、６ｄ 平板
７ａ、７ｂ、７ｃ、７ｄ 集配水部材
８ イオン交換装置塔体胴
８ａ イオン交換装置上側胴
８ｂ イオン交換装置下側胴
９ａ 第１の連通配管
９ｂ 第２の連通配管
９ｃ 第３の連通配管
９ｄ、９ｅ 配管
１０ａ アニオン交換槽上部配管
１０ｂ カチオン交換槽下部配管
１１ａ、１１ｂ、１１ｃ 弁（バルブ）
１２ 集配水部材設置用孔
１３ａ アニオン交換槽上室
１３ｂ アニオン交換槽下室
１３ｃ カチオン交換槽上室
１３ｄ カチオン交換槽下室
DESCRIPTION OF
12 Water collection and distribution
Claims (4)
前記アニオン交換槽および前記カチオン交換槽の断面が略円形状であって、直径５００ｍｍ〜３０００ｍｍであり、
前記アニオン交換樹脂層の層高が５００ｍｍ〜２０００ｍｍ、前記カチオン交換樹脂層の層高が４００ｍｍ〜８００ｍｍ、前記アニオン交換樹脂層の層高はカチオン交換樹脂層の層高の１．５倍〜２．５倍、前記アニオン交換槽下端とカチオン交換槽上端との距離が５００ｍｍ〜１０００ｍｍであり、
前記アニオン交換槽及び前記カチオン交換槽は、各々独立して、上部と下部に備えられた外側に凸状である鏡板とイオン交換槽側部の支持体により外殻が構成され、かつ、上下二枚の平板により区画された上室、樹脂充填室及び下室を備えており、
前記アニオン交換槽及び前記カチオン交換槽の側壁に、透明材料を備えた窓と、イオン交換樹脂の供給口及び排出口とが設置されており、
前記アニオン交換槽及び前記カチオン交換槽の側壁、及び、前記アニオン交換槽と前記カチオン交換槽の上下に設けた鏡板部に、人が出入りできる設備が設置されており、
前記アニオン交換槽と前記カチオン交換槽とは、これらのイオン交換槽の外側で連通手段により連通されており、
前記アニオン交換槽の上部に液を供給又は排出するための給排配管と前記カチオン交換槽の下部に液を供給又は排出するための給排配管とを備えており、
前記連通手段は、
前記アニオン交換槽の下部に液を給排するための第１の連通配管と、
前記カチオン交換槽の上部に液を給排するための第２の連通配管と、
前記第１の連通配管と前記第２の連通配管とを連通する第３の連通配管と、
前記第３の連通配管の開閉手段と、
前記第１の連通配管及び前記第２の連通配管にそれぞれ設けられた再生液の給排手段と、
を備え、
前記平板には、水は通すがイオン交換樹脂の通過を阻止する集配水部材が配置され、
前記アニオン交換槽上部の給排配管、前記第１の連通配管、前記第２の連通配管および前記カチオン交換槽下部の給排配管が、前記アニオン交換槽および前記カチオン交換槽のそれぞれの上部と下部に設けられた鏡板に連通している、
イオン交換装置。 An ion exchange apparatus comprising an anion exchange vessel filled with an anion exchange resin in the upper side and a cation exchange vessel filled with a cation exchange resin in the lower side,
The cross sections of the anion exchange tank and the cation exchange tank are substantially circular, and have a diameter of 500 mm to 3000 mm,
The layer height of the anion exchange resin layer is 500 mm to 2000 mm, the layer height of the cation exchange resin layer is 400 mm to 800 mm, the layer height of the anion exchange resin layer is 1.5 times to 2.5 times the layer height of the cation exchange resin layer. 5 times, the distance between the lower end of the anion exchange tank and the upper end of the cation exchange tank is 500 mm to 1000 mm,
The anion exchange tank and the cation exchange tank each independently have an outer shell composed of an outwardly convex end plate provided at the upper and lower portions and a support of the side of the ion exchange tank, and It has an upper chamber, a resin-filled chamber and a lower chamber separated by a flat plate,
In the side walls of the anion exchange tank and the cation exchange tank, a window provided with a transparent material and an inlet and an outlet of an ion exchange resin are provided.
The anion exchange chamber and the side wall of the cation exchange chamber, and, the end plate portion provided above and below the anion exchange chamber and the cation exchange chamber, and equipment is installed that can enter and leave the person,
The anion exchange tank and the cation exchange tank are communicated with each other by a communication means outside the ion exchange tank,
A feed / discharge pipe for supplying or discharging a liquid to the upper part of the anion exchange tank, and a feed / discharge pipe for supplying or discharging a liquid to a lower part of the cation exchange tank;
The communication means is
A first communication pipe for supplying and discharging a liquid to a lower portion of the anion exchange tank;
A second communication pipe for supplying and discharging a liquid to an upper portion of the cation exchange tank;
A third communication pipe that connects the first communication pipe and the second communication pipe;
Opening and closing means of the third communication pipe;
Supply / discharge means for the regeneration fluid respectively provided to the first communication pipe and the second communication pipe;
Equipped with
The flat plate is provided with a water collecting and distributing member that allows water to pass but prevents passage of the ion exchange resin,
The supply and discharge pipe at the upper portion of the anion exchange tank, the first communication pipe, the second communication pipe, and the supply and drain pipe at the lower portion of the cation exchange tank are the upper and lower portions of the anion exchange tank and the cation exchange tank, respectively. It is in communication with the end plate provided on the
Ion exchange device.
前記アニオン交換槽および前記カチオン交換槽の断面が略円形状であって、直径５００ｍｍ〜３０００ｍｍであり、
前記アニオン交換樹脂層の層高が５００ｍｍ〜２０００ｍｍ、前記カチオン交換樹脂層の層高が４００ｍｍ〜８００ｍｍ、前記アニオン交換樹脂層の層高はカチオン交換樹脂層の層高の１．５倍〜２．５倍、前記アニオン交換槽下端とカチオン交換槽上端との距離が５００ｍｍ〜１０００ｍｍであり、
前記カチオン交換槽及び前記アニオン交換槽は、各々独立して、上部と下部に備えられた外側に凸状である鏡板とイオン交換槽側部の支持体により外殻が構成され、かつ、上下二枚の平板により区画された上室、樹脂充填室及び下室を備えており、
前記アニオン交換槽及び前記カチオン交換槽の側壁に、透明材料を備えた窓と、イオン交換樹脂の供給口及び排出口とが設置されており、
前記アニオン交換槽及び前記カチオン交換槽の側壁、及び、前記アニオン交換槽と前記カチオン交換槽の上下に設けた鏡板部に、人が出入りできる設備が設置されており、
前記カチオン交換槽と前記アニオン交換槽とは、これらのイオン交換槽の外側で連通手段により連通されており、
前記カチオン交換槽の上部に液を供給又は排出するための給排配管と前記アニオン交換槽の下部に液を供給又は排出するための給排配管とを備えており、
前記連通手段は、
前記カチオン交換槽の下部に液を給排するための第１の連通配管と、
前記アニオン交換槽の上部に液を給排するための第２の連通配管と、
前記第１の連通配管と前記第２の連通配管とを連通する第３の連通配管と、
前記第３の連通配管の開閉手段と、
前記第１の連通配管及び前記第２の連通配管にそれぞれ設けられた再生液の給排手段と、
を備え、
前記平板には、水は通すがイオン交換樹脂の通過を阻止する集配水部材が配置され、
前記カチオン交換槽上部の給排配管、前記第１の連通配管、前記第２の連通配管および前記アニオン交換槽下部の給排配管が、前記カチオン交換槽および前記アニオン交換槽のそれぞれの上部と下部に設けられた鏡板に連通している、
イオン交換装置。 An ion exchange apparatus comprising a cation exchange tank filled with a cation exchange resin at the upper side and an anion exchange tank filled with an anion exchange resin at the lower side,
The cross sections of the anion exchange tank and the cation exchange tank are substantially circular, and have a diameter of 500 mm to 3000 mm,
The layer height of the anion exchange resin layer is 500 mm to 2000 mm, the layer height of the cation exchange resin layer is 400 mm to 800 mm, the layer height of the anion exchange resin layer is 1.5 times to 2.5 times the layer height of the cation exchange resin layer. 5 times, the distance between the lower end of the anion exchange tank and the upper end of the cation exchange tank is 500 mm to 1000 mm,
The cation exchange tank and the anion exchange tank each independently have an outer shell composed of an outwardly convex end plate provided on the upper and lower parts and a support of the ion exchange tank side, and It has an upper chamber, a resin-filled chamber and a lower chamber separated by a flat plate,
In the side walls of the anion exchange tank and the cation exchange tank, a window provided with a transparent material and an inlet and an outlet of an ion exchange resin are provided.
The anion exchange chamber and the side wall of the cation exchange chamber, and, the end plate portion provided above and below the anion exchange chamber and the cation exchange chamber, and equipment is installed that can enter and leave the person,
The cation exchange tank and the anion exchange tank are communicated with each other outside the ion exchange tank by communication means.
A feed / discharge pipe for supplying or discharging a liquid to the upper part of the cation exchange tank, and a feed / discharge pipe for supplying or discharging a liquid to a lower part of the anion exchange tank;
The communication means is
A first communication pipe for supplying and discharging a liquid to a lower portion of the cation exchange tank;
A second communication pipe for supplying and discharging a liquid to an upper portion of the anion exchange tank;
A third communication pipe that connects the first communication pipe and the second communication pipe;
Opening and closing means of the third communication pipe;
Supply / discharge means for the regeneration fluid respectively provided to the first communication pipe and the second communication pipe;
Equipped with
The flat plate is provided with a water collecting and distributing member that allows water to pass but prevents passage of the ion exchange resin,
The supply and discharge piping at the upper part of the cation exchange tank, the first communication pipe, the second communication pipe, and the supply and discharge pipe at the lower part of the anion exchange tank are the upper and lower parts of the cation exchange tank and the anion exchange tank, respectively. It is in communication with the end plate provided on the
Ion exchange device.
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Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58109142A (en) * | 1981-11-18 | 1983-06-29 | Tokyo Electric Power Co Inc:The | Ion exchange resin tower |
| JPH09294934A (en) * | 1996-05-07 | 1997-11-18 | Mitsubishi Heavy Ind Ltd | Ion exchange resin column |
| JPH1043510A (en) * | 1996-08-06 | 1998-02-17 | Japan Organo Co Ltd | Strainer |
| JPH11223501A (en) * | 1998-02-09 | 1999-08-17 | Japan Organo Co Ltd | Inspection method for attaching state of dimension inspection device and strainer |
| JP4138974B2 (en) * | 1998-11-26 | 2008-08-27 | オルガノ株式会社 | Peep window |
| JP4144515B2 (en) * | 2003-11-27 | 2008-09-03 | 栗田工業株式会社 | Ion exchange tower viewing window |
| JP4781154B2 (en) * | 2006-04-14 | 2011-09-28 | 中国電力株式会社 | Method and apparatus for taking out ion exchange resin from desalinator |
| JP5084279B2 (en) * | 2007-01-24 | 2012-11-28 | 中国電力株式会社 | How to replace the entire amount of ion exchange resin |
| JP5672687B2 (en) * | 2009-09-30 | 2015-02-18 | 栗田工業株式会社 | Ion exchanger |
| JP5849419B2 (en) * | 2011-03-29 | 2016-01-27 | 栗田工業株式会社 | Pure water production equipment |
| JP5862029B2 (en) * | 2011-03-29 | 2016-02-16 | 栗田工業株式会社 | Ion exchanger |
| JP5672333B2 (en) * | 2013-04-25 | 2015-02-18 | 栗田工業株式会社 | Operation method of regenerative ion exchanger |
| JP6331014B2 (en) * | 2014-06-19 | 2018-05-30 | 栗田工業株式会社 | Method and apparatus for regenerating multilayer anion exchange resin tower |
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