JPH0356311Y2 - - Google Patents
Info
- Publication number
- JPH0356311Y2 JPH0356311Y2 JP15669186U JP15669186U JPH0356311Y2 JP H0356311 Y2 JPH0356311 Y2 JP H0356311Y2 JP 15669186 U JP15669186 U JP 15669186U JP 15669186 U JP15669186 U JP 15669186U JP H0356311 Y2 JPH0356311 Y2 JP H0356311Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- deaeration
- tower
- ion exchange
- flow rate
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 128
- 238000004140 cleaning Methods 0.000 claims description 37
- 238000005342 ion exchange Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 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 description 14
- 239000003456 ion exchange resin Substances 0.000 description 10
- 229920003303 ion-exchange polymer Polymers 0.000 description 10
- 238000007872 degassing Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 239000003957 anion exchange resin Substances 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000003729 cation exchange resin Substances 0.000 description 5
- 238000006114 decarboxylation reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、脱炭酸塔、真空脱気塔などの脱気装
置と、イオン交換塔と、脱気装置とイオン交換塔
とに洗浄水を循環させてイオン交換塔を洗浄する
ための循環配管とを有するイオン交換装置の改良
に関するものである。[Detailed description of the invention] <Industrial application field> The invention provides cleaning water to a deaerator such as a decarboxylation tower or a vacuum deaerator, an ion exchange tower, and a deaerator and an ion exchange tower. The present invention relates to an improvement of an ion exchange apparatus having a circulation pipe for circulating and cleaning an ion exchange tower.
〈従来の技術〉
被処理水をイオン交換塔で処理した後に脱気装
置で脱気処理したり、あるいはその逆の順序で脱
気装置で脱気処理した後にイオン交換塔で処理す
るなどの構成とした、イオン交換塔と脱気装置と
を組み合わせたイオン交換装置は純水製造装置な
どに広く用いられている。これらの装置に使用さ
れている脱気装置においては、脱気塔の下部に付
属して設けた、あるいは脱気塔の後段に別に設け
た、脱気塔の流出水を貯留するための脱気水槽内
の水量を常に適正に保つために以下のような工夫
をしている。すなわち脱気塔の入口側配管に被処
理水の流量調整弁を設けるとともに脱気水槽には
液面検出手段を設け、これらを連動させることに
より脱気水槽の水位に応じて当該流量調整弁の開
度を自動的に調節し、脱気塔への被処理水の流量
を制御するものである。すなわち、脱気水槽の水
位が高い場合には脱気塔への被処理水の流量を少
なくするために前記流量調整弁の開度を小とし、
また、脱気水槽の水位が低い場合には流量を多く
するために当該弁の開度を大とするものである。<Prior art> A configuration in which the water to be treated is treated with an ion exchange tower and then degassed with a deaerator, or in the reverse order, where the water is degassed with a deaerator and then treated with an ion exchange tower. Ion exchange equipment that combines an ion exchange column and a deaerator are widely used in pure water production equipment and the like. In the deaerator used in these devices, a deaerator is attached to the lower part of the deaerator, or is separately provided in the latter stage of the deaerator to store the water flowing out of the deaerator. The following measures are taken to maintain the appropriate amount of water in the tank. In other words, a flow rate adjustment valve for the water to be treated is provided on the inlet side piping of the deaeration tower, and a liquid level detection means is provided in the deaeration water tank, and by interlocking these, the flow rate adjustment valve is adjusted according to the water level in the deaeration water tank. The opening degree is automatically adjusted to control the flow rate of water to be treated into the degassing tower. That is, when the water level of the deaeration water tank is high, the opening degree of the flow rate regulating valve is reduced in order to reduce the flow rate of the water to be treated to the deaeration tower,
Furthermore, when the water level in the deaeration water tank is low, the opening degree of the valve is increased in order to increase the flow rate.
このような流量制御機構を備えた脱気装置の例
として、脱炭酸装置がある。当該脱炭酸装置は簡
単な機構であるためよく用いられ、ラシヒリング
などを充填した空気吹き込み型の脱気塔と脱気水
槽とからなり、脱気水槽内にフロートを浮かべ、
当該フロートと前記流量調整弁とを滑車などを介
して紐状体で連動させた構成とし、当該フロート
の上下動に追随して流量調整弁の開度を自動的に
調節するようにしたものである。また、真空脱気
装置などにおいては、脱気水槽に付設した電気的
な液面検出手段と、例えば空気作動式の流量調整
弁とを組み合わせた制御方式のものがある。 An example of a deaerator equipped with such a flow rate control mechanism is a decarboxylation device. This decarboxylation device is often used because it has a simple mechanism, and consists of an air-blowing type deaeration tower filled with a Raschig ring, etc., and a deaeration water tank, with a float floating in the deaeration water tank.
The float and the flow rate adjustment valve are linked by a string-like body via a pulley or the like, and the opening degree of the flow rate adjustment valve is automatically adjusted in accordance with the vertical movement of the float. be. In addition, some vacuum deaerators have a control system that combines an electric liquid level detection means attached to a deaeration water tank and, for example, an air-operated flow rate regulating valve.
このような脱気装置とイオン交換塔とを組み合
わせたイオン交換装置において、被処理水を処理
してイオン交換塔内に充填されているイオン交換
樹脂の能力が低下した場合には、その能力を回復
させるために酸、アルカリなどの再生薬品を使用
して再生を行うが、再生工程においてはこれらの
再生薬品をイオン交換塔に通薬した後、塔内に残
留する再生薬品を水で押し出し、次いで残留する
少量の再生薬品を充分に洗い流すために洗浄水を
用いてイオン交換樹脂の洗浄を行う。 In such an ion exchange equipment that combines a deaerator and an ion exchange tower, if the capacity of the ion exchange resin filled in the ion exchange tower decreases after processing the water to be treated, the capacity should be reduced. In order to recover, regeneration is performed using regeneration chemicals such as acids and alkalis. In the regeneration process, after passing these regeneration chemicals through an ion exchange tower, the regeneration chemicals remaining in the tower are pushed out with water. Next, the ion exchange resin is washed with washing water in order to sufficiently wash away the small amount of remaining regenerating chemicals.
また、純水製造装置などは純水の採水を一時中
断して停止させておくと、イオン交換樹脂に吸着
されていたイオン等の不純物が当該樹脂と接触し
ている水中に溶出するために、再び採水を開始し
た場合には採水当初純度の悪い純水が流出するこ
とになる。従つてこのような一時停止後の再起動
時にも、イオン交換樹脂を洗浄水で洗浄した後に
採水工程に移行させるようにしている。 In addition, if pure water production equipment, etc. is temporarily suspended and stopped, impurities such as ions adsorbed on the ion exchange resin may be eluted into the water that is in contact with the resin. If water sampling is started again, pure water with poor purity at the time of sampling will flow out. Therefore, even when restarting after such a temporary stop, the ion exchange resin is washed with washing water before proceeding to the water sampling step.
従来、これらの洗浄時にイオン交換塔から排出
される洗浄排水はすべて系外に廃棄していたが、
最近は水資源の節約の面から当該洗浄排水を回収
してそのままイオン交換樹脂の洗浄水として再び
使用する、いわゆる循環洗浄方法が採用されるよ
うになつた。すなわち、前述のような脱気装置を
備えたイオン交換装置において循環洗浄を行う場
合には、あらかじめ付設されている循環配管を用
い、例えば脱気水槽に貯留されている脱気水をポ
ンプでイオン交換塔に供給し、イオン交換塔から
流出する洗浄排水を前記流量調整弁を経て再び脱
気塔に戻し、このように洗浄水を閉鎖されている
循環系に循環させてイオン交換塔から流出する水
が所定の純度に達するまで循環洗浄を行う。 Previously, all cleaning wastewater discharged from the ion exchange tower during these cleanings was disposed of outside the system.
Recently, in order to conserve water resources, a so-called circulation cleaning method has been adopted in which the cleaning waste water is recovered and used as it is again as cleaning water for ion exchange resins. In other words, when performing circulation cleaning in an ion exchange device equipped with a degassing device as described above, the pre-installed circulation piping is used to ionize degassed water stored in a degassing water tank with a pump. The washing water supplied to the exchange tower and flowing out from the ion exchange tower is returned to the degassing tower via the flow rate regulating valve, and thus the washing water is circulated through the closed circulation system and flows out from the ion exchange tower. Circulating cleaning is performed until the water reaches a predetermined purity.
〈考案が解決しようとする問題点〉
前述のような流量調整機構を備えた脱気装置と
イオン交換塔とを組み合わせたイオン交換装置に
おいて、イオン交換樹脂の循環洗浄を行う場合に
は以下のような問題点がある。<Problems to be solved by the invention> In an ion exchange device that combines a deaerator equipped with a flow rate adjustment mechanism as described above and an ion exchange tower, the following steps are taken when performing circulating cleaning of the ion exchange resin. There are some problems.
すなわち、循環洗浄を行うに際し、脱気水槽の
水位が所定のレベルより低い場合には脱気塔の入
口側に設けた流量調整弁の開度が自動的に大きく
なつているので問題ないが、脱気水槽の水位が高
い場合には当該流量調整弁の開度が自動的に小さ
くなつているので、系内を循環する水の流量が当
該流量調整弁によつて絞られて少なくなり、所定
の洗浄水流量が確保出来ないことになる。これは
閉鎖循環系で水を循環するため、脱気水槽内の水
位が高い場合は、その状態が保持されたまま循環
洗浄されるからである。従つてイオン交換塔の流
出水の純度が所定の水質に達するのに長時間の洗
浄を行わなければならないという問題点がある。 In other words, when performing circulation cleaning, if the water level in the deaeration water tank is lower than a predetermined level, there is no problem because the opening degree of the flow rate regulating valve provided at the inlet of the deaeration tower is automatically increased. When the water level in the deaeration water tank is high, the opening degree of the flow rate adjustment valve is automatically reduced, so the flow rate of water circulating in the system is throttled and reduced to a specified level. This means that the flow rate of cleaning water cannot be secured. This is because water is circulated in a closed circulation system, so if the water level in the deaeration water tank is high, the water is circulated and cleaned while maintaining that state. Therefore, there is a problem in that a long period of cleaning is required for the purity of the water flowing out of the ion exchange tower to reach a predetermined level.
本考案は、従来法における上述の問題点を解決
し、脱気水槽の水位が高い場合には、脱気水槽に
貯留されている脱気水を含めた系内保有水の一部
を自動的に系外にブローすることにより、脱気水
槽の水位を所定位置まで低下させ、それによつて
前記流量調整弁の開度を自動的に大きくなるよう
に調節し、所定流量の洗浄水が流れるようにし
た、イオン交換装置を提供することを目的とす
る。 This invention solves the above-mentioned problems with the conventional method. When the water level in the deaeration water tank is high, part of the water held in the system, including the deaeration water stored in the deaeration water tank, is automatically drained. By blowing water out of the system, the water level in the deaeration water tank is lowered to a predetermined position, and thereby the opening degree of the flow rate regulating valve is automatically adjusted to increase, so that a predetermined flow rate of cleaning water flows. The purpose of the present invention is to provide an ion exchange device that has the following characteristics.
〈問題点を解決するための手段〉
以下、本考案を図面を参照して詳細に説明す
る。<Means for solving the problems> The present invention will be described in detail below with reference to the drawings.
図面は、本考案の実施態様の一例を示すフロー
の説明図であり、脱気装置として空気吹き込み型
の脱炭酸装置を用いたイオン交換装置、すなわち
２床３塔型の純水製造装置に本考案を適用した例
である。 The drawing is an explanatory diagram of a flow showing an example of an embodiment of the present invention. This is an example of applying the idea.
図中１は強酸性カチオン交換樹脂２を充填した
イオン交換塔（以下「Ｋ塔」という）、３は例え
はラシヒリング等の充填材を充填した空気吹き込
み型の脱気塔、４は脱気塔３の下部に設けた脱気
水槽であり、脱気塔３と脱気水槽４とで脱気装置
５を構成する。６は移送ポンプ、７は強塩基性ア
ニオン交換樹脂８を充填したイオン交換塔（以下
「Ａ塔」という）である。また、９は系内保有水
のブロー弁であり、脱気水槽４に付設した液面検
出手段１０と計装的に連動させてあり、Ｋ塔１、
Ａ塔７に充填されているイオン交換樹脂を循環洗
浄するに際し、脱気水槽４の水位が所定の水位よ
り高い場合には当該ブロー弁９を自動的に開とし
て系内保有水の一部を系外にブローし、また当該
ブローを続行して系内保有水の量が減少し、脱気
水槽４の水位が所定の位置まで低下した時点でブ
ロー弁９を閉とするようにしておく。従つて、循
環洗浄を行うに際し、脱気水槽の水位が所定の位
置より低い場合には当該ブロー弁９が閉となるの
は勿論である。 In the figure, 1 is an ion exchange tower (hereinafter referred to as "K tower") filled with a strongly acidic cation exchange resin 2, 3 is an air-blowing type deaeration tower filled with a filler such as a Raschig ring, and 4 is a deaeration tower. The deaerator 3 and the deaerator tank 4 constitute a deaerator 5. 6 is a transfer pump, and 7 is an ion exchange tower (hereinafter referred to as "A tower") filled with a strongly basic anion exchange resin 8. Further, 9 is a blow valve for water held in the system, which is linked in an instrumentation manner with a liquid level detection means 10 attached to the deaerated water tank 4.
When circulating and cleaning the ion exchange resin filled in the A column 7, if the water level in the deaeration water tank 4 is higher than a predetermined water level, the blow valve 9 is automatically opened to drain some of the water held in the system. The blow valve 9 is closed when the amount of water retained in the system decreases by blowing it out of the system and continuing the blowing, and the water level in the deaeration water tank 4 drops to a predetermined position. Therefore, when performing circulation cleaning, if the water level in the deaeration water tank is lower than a predetermined position, the blow valve 9 is of course closed.
なお、採水工程においては、脱気水槽の水位に
係わらずブロー弁９を常に閉とするような機構と
しておく。ブロー弁９の付設位置としては図面に
記載した場所に限らず、洗浄水が循環する配管系
路の適所あるいは脱気水槽４に付設すればよく、
またＫ塔１の出口側配管に付設した再生工程に用
いる弁１５をブロー弁９と共用し、これに液面検
出手段１０を連動させてもよい。また、１１は脱
気塔３への被処理水の流量を自動的に調節するた
めの流量調整弁で、ワイヤーなどからなる紐状体
１２を用いて脱気水槽４内に設けたフロート１３
と滑車１４を介して連動させてある。なお、この
ような機械的制御機構の他に、衆知の電気的制御
機構を用いる場合もある。１５，１６，１７，１
８はそれぞれ弁を示し、また１９は循環配管であ
る。 In addition, in the water sampling process, a mechanism is provided in which the blow valve 9 is always closed regardless of the water level in the deaerated water tank. The blow valve 9 is not limited to the location shown in the drawings, but may be installed at an appropriate location in the piping system through which cleaning water circulates or in the deaeration water tank 4.
Further, the valve 15 used for the regeneration process attached to the outlet side piping of the K tower 1 may be used in common with the blow valve 9, and the liquid level detection means 10 may be linked to this. Reference numeral 11 denotes a flow rate adjustment valve for automatically adjusting the flow rate of the water to be treated to the degassing tower 3, and a float 13 is installed in the degassing water tank 4 using a string-like body 12 made of wire or the like.
and are interlocked via a pulley 14. In addition to such a mechanical control mechanism, a well-known electrical control mechanism may be used. 15, 16, 17, 1
8 indicates a valve, and 19 indicates a circulation pipe.
〈作用〉
このようなイオン交換装置において、例えば採
水を一時停止した後の再起動時の循環洗浄を行う
場合には以下のようにして行う。すなわち、流量
調整弁１１を除く他のすべての弁を閉とした停止
状態から弁１８を開とし、更に移送ポンプ６を駆
動させて脱気水槽４内の脱気水をＡ塔７に供給
し、循環配管１９を用いて循環洗浄を開始する。
脱気水槽４の水位が所定の位置より高く、従つて
流量調整弁１１の開度が所定の洗浄水流量を得る
のに必要な開度より小さい場合には、移送ポンプ
６の駆動及び弁１８の開作動と同時にブロー弁９
が開となり、移送ポンプ６によつてＡ塔７に供給
された脱気水はＡ塔７内を通過して強塩基性アニ
オン交換樹脂８を洗浄した後、一部は弁１８を経
てＫ塔１に供給され、他部はブロー弁９を経て系
外にブローされる。Ｋ塔１に供給されたＡ塔７の
流出水はＫ塔１内を通過して強酸性カチオン交換
樹脂２を洗浄した後、流量調整弁１１を経て脱気
塔３に供給され、脱気塔３の流出水は脱気水槽４
に戻される。このようにして系内保有水の一部を
ブロー弁９を経て系外にブローしながら循環洗浄
を行う工程を、短時間続行するうちに脱気水槽４
の水位が所定位置まで低下し、脱気水槽４内に設
けたフロート１３が下降し、当該フロート１３と
連動する流量調整弁１１の開度が所定の開度とな
るので、この時点でブロー弁９を閉とする。以後
は、前述の循環洗浄回路によつて、所定の洗浄水
流量による循環洗浄を続行することが出来る。な
お、循環洗浄を開始するに際し、最初は移送ポン
プ６を駆動するとともにブロー弁９のみを開とし
て先ず系内保有水のブローのみを行い、脱気水槽
４の水位が所定の位置まで低下した時点で弁９を
閉とするとともに弁１８を開とし、循環洗浄を開
始してもよい。このような循環洗浄を続行してＡ
塔７の流出水の純度が所定の純度に達した時点で
循環洗浄を終了し、採水工程に移行するが、この
時には弁１８を閉とするとともに弁１６及び弁１
７を開とし、被処理水を弁１６を経てＫ塔１に供
給し、一方、所定の純度の純水を弁１７を経て採
水する。なお、採水工程においては、前述に如
く、脱気水槽４の水位に係わらずブロー弁９は常
に閉の状態にあるように計装的配慮を施しておく
ことはいうまでもない。なお、イオン交換樹脂再
生後の循環洗浄も上述の場合とほぼ同様にして行
うことが出来る。<Function> In such an ion exchange device, for example, when performing circulation cleaning when restarting after temporarily stopping water sampling, it is performed as follows. That is, the valve 18 is opened from a stopped state in which all other valves except the flow rate adjustment valve 11 are closed, and the transfer pump 6 is further driven to supply deaerated water in the deaerated water tank 4 to the A tower 7. , the circulation cleaning is started using the circulation piping 19.
If the water level in the deaeration water tank 4 is higher than a predetermined position and the opening degree of the flow rate adjustment valve 11 is smaller than the opening degree required to obtain a predetermined washing water flow rate, the transfer pump 6 is driven and the valve 18 is activated. At the same time as the opening operation of the blow valve 9
is opened, and the degassed water supplied to the A column 7 by the transfer pump 6 passes through the A column 7 and washes the strong basic anion exchange resin 8, and then a portion passes through the valve 18 to the K column. 1, and the other part is blown out of the system through the blow valve 9. The effluent water from the A tower 7 supplied to the K tower 1 passes through the K tower 1 and washes the strongly acidic cation exchange resin 2, and then is supplied to the degassing tower 3 via the flow rate adjustment valve 11. The outflow water from step 3 is sent to deaerated water tank 4.
will be returned to. In this way, while the process of circulating cleaning while blowing a part of the water held in the system out of the system via the blow valve 9 continues for a short time, the degassing water tank 4
The water level drops to a predetermined position, the float 13 provided in the deaeration water tank 4 descends, and the opening degree of the flow rate adjustment valve 11 interlocked with the float 13 becomes a predetermined opening degree. 9 is closed. Thereafter, the above-mentioned circulating cleaning circuit can continue circulating cleaning using a predetermined flow rate of cleaning water. In addition, when starting circulation cleaning, first, the transfer pump 6 is driven and only the blow valve 9 is opened to blow only the water held in the system, and when the water level in the deaeration water tank 4 has decreased to a predetermined position. Then, the valve 9 may be closed and the valve 18 may be opened to start circulating cleaning. Continue this circular cleaning and
When the purity of the outflow water from the tower 7 reaches a predetermined purity, the circulation cleaning is completed and the water sampling process begins. At this time, the valve 18 is closed and the valves 16 and 1 are closed.
7 is opened, water to be treated is supplied to the K tower 1 via the valve 16, and pure water of a predetermined purity is sampled via the valve 17. In the water sampling process, as described above, it goes without saying that instrumentation should be taken so that the blow valve 9 is always closed regardless of the water level in the deaerated water tank 4. Note that circulation cleaning after regenerating the ion exchange resin can also be performed in substantially the same manner as in the above case.
上述の実施態様ではいわゆる２床３塔型の純水
製造装置を対象としたが、本考案は上述の実施態
様に限らず、例えば塔内に強酸性カチオン交換樹
脂と強塩基性アニオン交換樹脂あるいは弱塩基性
アニオン交換樹脂との混合樹脂を充填した、いわ
ゆる混床式のイオン交換塔と脱炭酸装置または真
空脱気装置とを組み合わせた混床式純水製造装置
などにも適用出来る。 In the above-mentioned embodiment, the object is a so-called two-bed, three-column type pure water production apparatus, but the present invention is not limited to the above-mentioned embodiment. For example, a strong acid cation exchange resin, a strong basic anion exchange resin, or It can also be applied to a mixed-bed pure water production device that combines a so-called mixed-bed ion exchange column filled with a mixed resin with a weakly basic anion exchange resin and a decarboxylation device or a vacuum deaerator.
〈効果〉
以上のように、本考案によればイオン交換樹脂
を循環洗浄するに際し、脱気水槽の水位が所定位
置より高いために脱気塔の入口側配管に付設して
ある流量調整弁の開度が小さく、所定流量の洗浄
所定が流れないような場合にも、脱気水槽の水位
を所定の位置まで自動的に下げて当該流量調整弁
の開度を所定の流量が得られる開度に自動的に調
節することが出来る。従つて、所定の洗浄水流量
を確保することが出来、短時間で速やかにイオン
交換樹脂の洗浄を行うことが出来る。<Effect> As described above, according to the present invention, when circulating and cleaning ion exchange resin, the water level in the deaeration water tank is higher than the predetermined position, so the flow rate regulating valve attached to the inlet side pipe of the deaeration tower is Even when the opening degree is small and the specified flow rate of cleaning does not flow, the water level in the deaeration water tank is automatically lowered to the specified position and the opening degree of the flow rate adjustment valve is adjusted to the opening degree that allows the specified flow rate to be obtained. can be automatically adjusted. Therefore, a predetermined flow rate of cleaning water can be ensured, and the ion exchange resin can be quickly cleaned in a short time.
〈実施例〉
以下に、本考案の効果より明確にするために実
施例を説明する。<Examples> Examples will be described below to clarify the effects of the present invention.
強酸性カチオン交換樹脂1200を充填したＫ塔
と、強塩基性アニオン交換樹脂2000を充填した
Ａ塔と、空気吹き込み型の脱炭酸装置とを組み合
わせた図面に示したような２床３塔型の純水製造
装置において、純水の採水を一時停止した後に再
起動を行う場合の循環洗浄を従来法によつて行つ
たところ脱気水槽の水位が所定位置より高かつた
ために脱炭酸塔の入口側配管に付設した流量調整
弁の開度が小さく、洗浄水流量は13m3／Ｈしか流
れなかつた。この流量で洗浄を続行したところ、
Ａ塔流出水の純度が目標純度である5μs／cm2に達
するまでに85分間を要した。 A two-bed, three-column type system as shown in the drawing combines a K tower filled with a strongly acidic cation exchange resin 1200, an A tower filled with a strongly basic anion exchange resin 2000, and an air-blowing type decarboxylation device. When restarting a pure water production equipment after temporarily stopping water sampling, the conventional method was used to perform circulation cleaning, but the water level in the deaeration water tank was higher than the specified level, so the decarbonation tower was closed. The opening degree of the flow rate regulating valve attached to the inlet side piping was small, and the flow rate of cleaning water was only 13 m 3 /H. When cleaning was continued at this flow rate,
It took 85 minutes for the purity of the water flowing out of Tower A to reach the target purity of 5 μs/cm 2 .
同一の装置において、脱気水槽の水位が上述の
比較例とほぼ同一である場合に本考案を実施した
ところ、この場合にはブロー弁から系内保有水の
一部が系外にブローされて脱気水槽の水位が所定
位置まで低下し、流量調整弁の開度が所定の開度
となつて洗浄水流量が24m3／Ｈに増加し、目標純
度に達するまでの所要時間は35分に短縮された。 In the same equipment, when the present invention was implemented when the water level of the deaeration water tank was almost the same as in the above-mentioned comparative example, in this case, some of the water held in the system was blown out of the system from the blow valve. The water level in the deaeration water tank drops to the specified level, the opening of the flow rate adjustment valve reaches the specified opening, the washing water flow rate increases to 24 m 3 /H, and the time required to reach the target purity is 35 minutes. Shortened.
図面は本考案の実施態様の一例を示すフローの
説明図である。
１……イオン交換塔（Ｋ塔）、２……強酸性カ
チオン交換樹脂、３……脱気塔、４……脱気水
槽、５……脱気装置、６……移送ポンプ、７……
イオン交換塔（Ａ塔）、８……強塩基性アニオン
交換樹脂、９……ブロー弁、１０……液面検出手
段、１１……流量調整弁、１２……紐状体、１３
……フロート、１４……滑車、１５，１６，１
７，１８……弁、１９……循環配管。
The drawing is an explanatory diagram of a flow showing an example of an embodiment of the present invention. 1... Ion exchange tower (K tower), 2... Strong acid cation exchange resin, 3... Deaeration tower, 4... Deaeration water tank, 5... Deaerator, 6... Transfer pump, 7...
Ion exchange tower (A tower), 8...Strong basic anion exchange resin, 9...Blow valve, 10...Liquid level detection means, 11...Flow rate adjustment valve, 12...String body, 13
...Float, 14...Pulley, 15,16,1
7, 18... Valve, 19... Circulation piping.
Claims (1)
の水位によつて脱気塔入口側配管に設けた流量調
整弁の開度を自動的に調節し、当該脱気塔への被
処理水の流量を制御する機構を備えた脱気装置
と、イオン交換塔と、脱気装置とイオン交換塔と
に洗浄水を循環させてイオン交換塔を洗浄するた
めの循環配管とを有するイオン交換装置におい
て、脱気水槽あるいは洗浄水が循環する配管系路
の適所に付設したブロー弁と連動する液面検出手
段を脱気水槽に設け、循環洗浄の前あるいは循環
洗浄の前半に、前記液面検出手段と連動するブロ
ー弁を用いて脱気水槽の水位を低下させることを
特徴とするイオン交換装置。 Depending on the water level of the deaeration water tank that stores the deaeration water flowing out from the deaeration tower, the opening degree of the flow rate adjustment valve installed at the deaeration tower inlet pipe is automatically adjusted, and the amount of water to be processed into the deaeration tower is adjusted. An ion exchange system that includes a deaerator equipped with a mechanism for controlling the flow rate of water, an ion exchange tower, and circulation piping for circulating cleaning water between the deaerator and the ion exchange tower to clean the ion exchange tower. In the device, a liquid level detection means is provided in the deaeration water tank or in conjunction with a blow valve attached to an appropriate place in the piping system through which cleaning water circulates, and the liquid level is detected before or during the first half of the circulation cleaning. An ion exchange device characterized in that the water level of a deaeration water tank is lowered using a blow valve that is linked to a detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15669186U JPH0356311Y2 (en) | 1986-10-15 | 1986-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15669186U JPH0356311Y2 (en) | 1986-10-15 | 1986-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6363189U JPS6363189U (en) | 1988-04-26 |
| JPH0356311Y2 true JPH0356311Y2 (en) | 1991-12-17 |
Family
ID=31078547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15669186U Expired JPH0356311Y2 (en) | 1986-10-15 | 1986-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0356311Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007000819A (en) * | 2005-06-27 | 2007-01-11 | Ebara Corp | Pure water production apparatus and method |
-
1986
- 1986-10-15 JP JP15669186U patent/JPH0356311Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6363189U (en) | 1988-04-26 |
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