JP2000140839A - Desalting device of condensate - Google Patents
Desalting device of condensateInfo
- Publication number
- JP2000140839A JP2000140839A JP10314633A JP31463398A JP2000140839A JP 2000140839 A JP2000140839 A JP 2000140839A JP 10314633 A JP10314633 A JP 10314633A JP 31463398 A JP31463398 A JP 31463398A JP 2000140839 A JP2000140839 A JP 2000140839A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- condensate
- desalination
- tower
- ion exchange
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、復水脱塩装置に関
し、とくにイオン交換樹脂の非再生運用を行っている沸
騰水型原子力発電所（以下、ＢＷＲ型原子力発電所と略
称する。）に好適な復水脱塩装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a condensate desalination apparatus and, more particularly, to a boiling water nuclear power plant (hereinafter abbreviated as a BWR type nuclear power plant) which performs non-regeneration operation of an ion exchange resin. It relates to a suitable condensate desalination apparatus.
【０００２】[0002]
【従来の技術】原子力発電所において、復水脱塩装置
は、復水器で凝縮した復水中の不純物（主にイオン状の
物質）をイオン交換樹脂を充填した復水脱塩塔にて浄化
し、原子炉へ供給される給水の純度を規定値以下に保持
するために設置されている。2. Description of the Related Art In a nuclear power plant, a condensate desalination apparatus purifies impurities (mainly ionic substances) in condensate condensed by a condenser in a condensate desalination tower filled with an ion exchange resin. It is installed to maintain the purity of the water supply to the reactor below a specified value.
【０００３】この復水脱塩装置は、通常、下記のような
２系統によって構成されている。 脱塩系：復水を脱塩塔内のイオン交換樹脂により浄化
処理する系。 再生系：脱塩塔の出口における導電率、各塔の流量お
よび復水脱塩装置出入口母管間の差圧が規定値に達した
ら、脱塩塔のイオン交換樹脂を再生系に移送し、洗浄も
しくは薬品再生を行う系。再生後の樹脂は再び脱塩塔に
返送し、系統に復帰する。[0003] This condensate desalination apparatus is usually constituted by the following two systems. Desalination system: A system that purifies condensate with ion exchange resin in a desalination tower. Regeneration system: When the conductivity at the outlet of the desalination tower, the flow rate of each tower and the differential pressure between the inlet and outlet pipes of the condensate demineralizer reach the specified values, transfer the ion exchange resin of the desalination tower to the regeneration system, A system that performs cleaning or chemical regeneration. The regenerated resin is returned to the desalination tower again and returned to the system.
【０００４】ところで、近年のＢＷＲ型原子力発電所で
は、復水中のイオン不純物濃度が低く、また、ほとんど
のプラントが復水濾過器と復水脱塩装置をシリーズで設
置しており、復水濾過器で予め濾過されるため復水脱塩
装置に加わるクラッド成分の負荷も極めて少ないので、
ほとんどのプラントではイオン交換樹脂の薬品再生や逆
洗を行わない非再生運用を採用している。つまり、イオ
ン交換樹脂が寿命に達したら、それを再生せずに新樹脂
に交換する運用方法である。このような非再生運用を実
施しているプラントでは、再生系は新樹脂の受け入れや
定検時の樹脂の一時的な保管用として運用されている。Meanwhile, in recent BWR-type nuclear power plants, the concentration of ionic impurities in condensate is low, and almost all plants are equipped with a condensate filter and a condensate desalination unit in series. Since the load of the clad component applied to the condensate desalination unit is extremely small because it is filtered in advance in a vessel,
Most plants employ non-regenerative operation without regenerating or backwashing the ion exchange resin. In other words, this is an operation method in which when the ion exchange resin reaches the end of its life, it is replaced with a new resin without regenerating it. In a plant that performs such non-regeneration operation, the regeneration system is operated for receiving a new resin or temporarily storing the resin at the time of regular inspection.
【０００５】また最近では、薬品再生設備を有しない非
再生運用型の復水脱塩装置も計画されており、新樹脂の
受け入れや定検時の樹脂の一時的な保管用として脱塩塔
の樹脂を全量受け入れ可能な容量を有する系外塔を設置
する構成も計画されつつある。Recently, a non-regenerative operation type condensate desalination apparatus without a chemical regenerating facility is also being planned, and the desalination tower is used for receiving a new resin or temporarily storing the resin during regular inspection. A configuration in which an external tower having a capacity capable of receiving all of the resin is installed is also being planned.
【０００６】このような現状において、原子力発電所プ
ラントにおける使用済みのイオン交換樹脂の廃棄および
新樹脂の受け入れは、たとえば図４に示すような系統構
成にて行われている。Under such circumstances, the disposal of used ion exchange resin and the acceptance of new resin in a nuclear power plant are performed in a system configuration as shown in FIG. 4, for example.
【０００７】図４において、１０１は復水処理系に複数
並設された脱塩塔を示しており、各脱塩塔１０１にはイ
オン交換樹脂が充填され、復水入口配管１０２から供給
されてきた復水が浄化処理された後、復水出口配管１０
３を介して原子力発電所の系統に戻される。脱塩塔１０
１内のイオン交換樹脂を移送する場合には、復水入口弁
１０４および復水出口弁１０５を閉として対象となる脱
塩塔１０１を隔離した後、脱塩塔樹脂出口弁１０６およ
び樹脂入口弁１０７を開とし、図示しない補給水ライン
および空気ラインからの水および空気により樹脂取出管
１０８を介して、脱塩塔１０１の樹脂を再生塔１０９
（通常は、アニオン交換樹脂とカチオン交換樹脂とを分
離して再生するため少なくとも２塔設けられている。）
に移送する（もしくは、前述の如く一時保管用として系
外塔を設ける場合には、その系外塔に移送することも考
えられる。）。脱塩塔樹脂出口弁１０６および樹脂入口
弁１０７を閉とした後、廃樹脂出口弁１１０を開とし、
図示しない補給水ラインおよび空気ラインからの水およ
び空気により廃棄樹脂移送管１１１を介して、上述の如
き復水脱塩系に対する系外の塔１０９内の樹脂を廃棄樹
脂貯蔵タンク等の外部装置へ移送して樹脂の廃棄を完了
する。In FIG. 4, reference numeral 101 denotes a plurality of desalination towers arranged in parallel in the condensate treatment system. Each of the desalination towers 101 is filled with an ion exchange resin and supplied from a condensate inlet pipe 102. After the condensate is purified, the condensate outlet pipe 10
It is returned to the system of the nuclear power plant via 3. Desalination tower 10
1, the condensate inlet valve 104 and the condensate outlet valve 105 are closed to isolate the target desalination tower 101, and then the desalination tower resin outlet valve 106 and the resin inlet valve. 107 is opened, and the resin in the desalination tower 101 is regenerated by water and air from a makeup water line and an air line (not shown) through a resin extraction pipe 108.
(Usually, at least two columns are provided to separate and regenerate the anion exchange resin and the cation exchange resin.)
(Or, if an external tower is provided for temporary storage as described above, transfer to the external tower is also conceivable). After closing the desalination tower resin outlet valve 106 and the resin inlet valve 107, open the waste resin outlet valve 110,
The resin in the tower 109 outside the system for the condensate desalination system as described above is transferred to an external device such as a waste resin storage tank through the waste resin transfer pipe 111 by water and air from a makeup water line and an air line (not shown). Transfer to complete resin disposal.
【０００８】新樹脂の受け入れは、新樹脂受け入れ弁１
１２を開とし、新樹脂移送ライン１１３を介してエゼク
ターもしくはスラリーポンプなどを用いて新樹脂を系外
の塔１０９へ受け入れる。新樹脂受け入れ弁１１２を
閉、樹脂出口弁１１４および脱塩塔樹脂入口弁１１６を
開とし、図示しない補給水ラインおよび空気ラインから
の水および空気により、樹脂送給ライン１１５を介し
て、系外の塔１０９から脱塩塔１０１へ新樹脂を移送す
る。樹脂出口弁１１４および脱塩塔樹脂入口弁１１６を
閉とした後、復水入口弁１０４および復水出口弁１０５
を開として復水の通水を再開する。[0008] New resin receiving valve, new resin receiving valve 1
12 is opened, and the new resin is received into the tower 109 outside the system using an ejector or a slurry pump via the new resin transfer line 113. The new resin receiving valve 112 is closed, the resin outlet valve 114 and the desalting tower resin inlet valve 116 are opened, and water and air from a makeup water line and an air line (not shown) are supplied to the outside of the system via a resin feed line 115. The new resin is transferred from the tower 109 to the desalination tower 101. After closing the resin outlet valve 114 and the desalination tower resin inlet valve 116, the condensate inlet valve 104 and the condensate outlet valve 105
And restart the condensate flow.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、図４に
示したような従来の方法では、使用済みのイオン交換樹
脂の廃棄および新樹脂の受け入れに要する時間が長く、
運転再開まで長時間の停機を余儀なくされるという問題
がある。また、使用済みの樹脂の移送に用いる水や、イ
オン交換樹脂を逆洗や再生する場合に用いる水や液は全
て放射性廃液として取り扱う必要があるが、この放射性
廃液の発生量も多いという問題がある。However, in the conventional method as shown in FIG. 4, the time required for discarding the used ion exchange resin and receiving the new resin is long.
There is a problem that a long stoppage is required until the operation resumes. In addition, water used for transporting used resin and water and liquid used for backwashing and regenerating ion-exchange resin must all be treated as radioactive waste liquid, but the amount of radioactive waste liquid generated is large. is there.
【００１０】すなわち、復水脱塩装置で生じた使用済み
樹脂は、樹脂取出管１０８で系外の塔１０９に受け入れ
た後、放射性廃棄物処理設備の廃棄樹脂貯槽に廃棄する
ため、復水脱塩塔→系外の塔、系外の塔→廃棄樹脂貯槽
の２回の樹脂移送を行う必要がある。このため、樹脂廃
棄に要する時間が長くなり、かつ、放射性廃液の発生量
も多くなる。That is, the used resin generated in the condensate desalination apparatus is received in the tower 109 outside the system by the resin take-out pipe 108, and then is discarded in the waste resin storage tank of the radioactive waste treatment facility. It is necessary to carry out resin transfer twice from a salt tower to a tower outside the system and a tower outside the system to a waste resin storage tank. Therefore, the time required for resin disposal becomes longer, and the amount of radioactive waste liquid generated also increases.
【００１１】また、新樹脂の受け入れに際しても、使用
済み樹脂の廃棄作業が終了するまでは新樹脂を供給でき
ず、また、系外の塔１０９に一旦新樹脂を受け入れた後
に脱塩塔１０１へ移送するため、２回の樹脂移送を行う
必要があり、脱塩塔１０１を隔離する時間が長くなる。Also, when receiving the new resin, the new resin cannot be supplied until the used resin is disposed of, and the new resin is once received in the tower 109 outside the system and then transferred to the desalination tower 101. To transfer the resin, it is necessary to perform the resin transfer twice, and the time for isolating the desalination tower 101 becomes longer.
【００１２】とくに非再生運用を行うプラントでは、上
流側に配置された復水器での冷却に用いられる海水がリ
ークした場合等に、海水リークの発生等によるイオン交
換樹脂へのイオン負荷が上昇するおそれがあり、そのよ
うな場合には、プラント運転中に緊急に新樹脂への交換
を行う必要が生じる。このような場合には、復水を処理
しつつ樹脂交換を行う必要があり、脱塩塔の隔離時間を
極力短くする必要があるが、従来の移送方法では、要求
に十分に応えることが困難であった。Particularly, in a plant that performs non-regeneration operation, when seawater used for cooling in a condenser disposed on the upstream side leaks, the ion load on the ion-exchange resin due to the occurrence of seawater leak increases. In such a case, it is necessary to urgently replace the resin with a new resin during the operation of the plant. In such a case, it is necessary to exchange the resin while treating the condensate, and it is necessary to shorten the isolation time of the desalination tower as much as possible. However, it is difficult for the conventional transfer method to sufficiently meet the demand. Met.
【００１３】そこで本発明の課題は、イオン交換樹脂の
交換や、逆洗、再生等のための一時保管の必要が生じた
場合、脱塩塔から、あるいは脱塩塔へのイオン交換樹脂
の移送を短時間で迅速に行うことができ、しかも移送等
に使用する水量を低減して放射性廃液の発生量を低減で
きる復水脱塩装置を提供することにある。[0013] Therefore, an object of the present invention is to transfer the ion exchange resin from or to the desalination tower when the ion exchange resin needs to be temporarily stored for exchange, backwashing, regeneration, and the like. It is an object of the present invention to provide a condensate desalination apparatus which can rapidly perform the process in a short time and can reduce the amount of radioactive waste liquid by reducing the amount of water used for transportation and the like.
【００１４】[0014]
【課題を解決するための手段】上記課題を解決するため
に、本発明の復水脱塩装置は、内部にイオン交換樹脂を
充填する脱塩塔を有する復水脱塩装置に、該脱塩塔と復
水脱塩装置系統の外部との間でイオン交換樹脂を直接移
送可能な移送ラインを設けたことを特徴とするものから
なる。In order to solve the above problems, a condensate desalination apparatus according to the present invention is provided in a condensate desalination apparatus having a desalination tower filled with an ion exchange resin. A transfer line capable of directly transferring the ion exchange resin between the tower and the outside of the condensate desalination system is provided.
【００１５】このような復水脱塩装置においては、脱塩
塔内のイオン交換樹脂を受け入れ可能な系外塔を有し、
上記移送ラインが系外塔をバイパスして脱塩塔と復水脱
塩装置系統の外部とを直接接続している構成とすること
ができる。系外塔としては、少なくとも脱塩塔１塔分の
イオン交換樹脂を全量受け入れ可能な容量を有するもの
が好ましく、かつ、少なくとも１塔設けられればよい。[0015] Such a condensate desalination apparatus has an external tower capable of receiving the ion exchange resin in the desalination tower,
The above-mentioned transfer line may be configured to directly connect the desalination tower and the outside of the condensate desalination system by bypassing the external system tower. As the out-of-system column, a column having a capacity capable of accepting at least the entire amount of the ion exchange resin for one demineralization column is preferable, and at least one column may be provided.
【００１６】本発明において、上記「復水脱塩装置系
統」とは、脱塩塔と系外塔、およびこれらの間を接続す
る配管を含めた系統を言い、「復水脱塩装置系統の外
部」とは、使用済みのイオン交換樹脂の廃棄、貯蔵設備
および新イオン交換樹脂の供給設備を指す。In the present invention, the term "condensate desalination system" refers to a system including a desalination tower, an out-of-system tower, and a pipe connecting between the two. The “outside” refers to a facility for disposing and storing used ion exchange resin and a facility for supplying new ion exchange resin.
【００１７】したがって、上記移送ラインは、脱塩塔か
ら使用済みのイオン交換樹脂を、系統外部の廃棄樹脂貯
蔵設備（たとえば貯蔵タンク）へ直接廃棄するラインに
構成できる。あるいは、上記移送ラインは、新イオン交
換樹脂供給設備から脱塩塔へ新樹脂を直接送給するライ
ンに構成できる。さらに、上記移送ラインは脱塩塔から
使用済みのイオン交換樹脂を直接廃棄するラインと、脱
塩塔へ新イオン交換樹脂を直接送給するラインとの両方
を含むものに構成してもよい。Accordingly, the transfer line can be configured as a line for directly discarding the used ion exchange resin from the desalting tower to a waste resin storage facility (for example, a storage tank) outside the system. Alternatively, the transfer line can be configured as a line for directly feeding new resin from a new ion exchange resin supply facility to a desalination tower. Further, the transfer line may be configured to include both a line for directly discarding the used ion exchange resin from the desalination tower and a line for directly feeding the new ion exchange resin to the desalination tower.
【００１８】このような復水脱塩装置は、復水通水系の
上流側に復水濾過器が設けられている、復水脱塩装置へ
のクラッド等の負荷の少ない系に好適であり、とくに、
イオン交換樹脂の非再生運用を行っているＢＷＲ型原子
力発電所に用いて好適なものである。Such a condensate desalination apparatus is suitable for a system in which a condensate filter is provided on the upstream side of the condensate water flow system and the load on the condensate desalination apparatus is small, such as cladding. In particular,
It is suitable for use in a BWR-type nuclear power plant in which non-regeneration operation of ion exchange resin is performed.
【００１９】上記のような本発明に係る復水脱塩装置に
おいては、使用済みのイオン交換樹脂を廃棄する際に
は、従来方法のように一旦系外塔に送りそこから廃棄設
備へと送る２回の移送動作を行う必要はなく、脱塩塔か
ら直接移送ラインを介して廃棄できるので、樹脂移送に
要する時間が大幅に短縮されるとともに、移送に要する
水量も大幅に低減される。In the condensate desalination apparatus according to the present invention as described above, when the used ion exchange resin is discarded, it is once sent to an external column as in the conventional method, and then sent to a disposal facility. Since it is not necessary to perform two transfer operations and the wastewater can be discarded directly from the desalination tower via the transfer line, the time required for resin transfer is greatly reduced, and the amount of water required for transfer is also significantly reduced.
【００２０】また、新イオン交換樹脂の受け入れに際し
ては、同様に、従来方法のように一旦系外塔に受け入れ
そこから脱塩塔へと送る２回の移送動作を行う必要はな
く、移送ラインを介して、脱塩塔へ直接新樹脂を送給で
きるので、樹脂送給に要する時間が大幅に短縮されると
ともに、移送に要する水量も大幅に低減される。Also, when the new ion exchange resin is received, it is not necessary to perform the two-time transfer operation for once receiving the new ion-exchange resin into the external column and sending it to the desalination column as in the conventional method. The new resin can be fed directly to the desalination tower via the above, so that the time required for feeding the resin is greatly reduced and the amount of water required for the transfer is also greatly reduced.
【００２１】使用済みのイオン交換樹脂の直接廃棄ライ
ンと、新樹脂を直接受け入れるための直接送給ラインと
の両方を設ければ、イオン交換樹脂交換に要する時間が
一層短縮され、移送に要する水量も一層低減される。If both a direct disposal line for the used ion exchange resin and a direct feed line for directly receiving the new resin are provided, the time required for the exchange of the ion exchange resin is further reduced, and the amount of water required for the transfer is reduced. Is further reduced.
【００２２】イオン交換樹脂の移送、交換に要する時間
が短縮される結果、イオン交換樹脂の非再生運用系にお
いても、緊急の樹脂交換等への対応が可能になる。ま
た、移送等に要する水量が低減される結果、給水設備へ
の負荷が低減されるのはもちろんのこと、放射性廃液の
発生量も低減されるため、放射性廃液処理系への負荷も
低減される。As a result of shortening the time required for transferring and exchanging the ion exchange resin, it is possible to cope with urgent resin exchange and the like even in the non-regeneration operation system of the ion exchange resin. In addition, as a result of reducing the amount of water required for transportation and the like, the load on the water supply equipment is reduced, and the amount of radioactive waste liquid generated is also reduced, so the load on the radioactive waste liquid treatment system is also reduced. .
【００２３】[0023]
【発明の実施の形態】以下に、本発明の望ましい実施の
形態を、図面を参照して説明する。図１は、本発明の第
１実施態様に係る復水脱塩装置を示している。図１にお
いて、１は、復水の系統内に組み込まれた、複数の脱塩
塔２が並設された復水脱塩装置を示しており、各脱塩塔
２内には、イオン交換樹脂が充填されて、復水入口配管
３から導入されてくる復水が浄化処理され、処理された
復水が復水出口配管４を介して発電所系統内に戻され
る。復水入口配管３には復水入口弁５が、復水出口配管
４には復水出口弁６が、それぞれ設けられている。上流
側には、冷却水として海水ライン７から海水が通水され
る復水器８と、復水濾過器９とが、シリーズに接続され
ており、復水器８からの復水が、復水濾過器９によりク
ラッド等の不純物が濾過、除去された後、各脱塩塔２に
送られる。この態様は、とくに、イオン交換樹脂の薬品
再生を行わない非再生運用の原子力発電所の系統として
表わされている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a condensate desalination apparatus according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a condensate desalination apparatus in which a plurality of desalination towers 2 are arranged in parallel in a condensate system. And the condensate introduced from the condensate inlet pipe 3 is purified, and the treated condensate is returned to the power plant system via the condensate outlet pipe 4. The condensate inlet pipe 3 is provided with a condensate inlet valve 5, and the condensate outlet pipe 4 is provided with a condensate outlet valve 6. On the upstream side, a condenser 8 through which seawater flows from the seawater line 7 as cooling water and a condenser filter 9 are connected in series, and the condensate from the condenser 8 is condensed. After the impurities such as the clad are filtered and removed by the water filter 9, the impurities are sent to each desalting tower 2. This embodiment is particularly shown as a system of a non-regenerative nuclear power plant which does not perform chemical regeneration of the ion exchange resin.
【００２４】各脱塩塔２には、樹脂取出管１０が接続さ
れており、該取出管１０は、本実施態様では、少なくと
も脱塩塔２の１塔分のイオン交換樹脂を全量受け入れ可
能な容量を有する系外塔１１へと接続されている。この
系外塔１１は、たとえば脱塩塔２の定検時のイオン交換
樹脂の一時保管や、取り出し樹脂の逆洗等に使用可能に
構成されている。樹脂取出管１０には、脱塩塔樹脂出口
弁１２および樹脂入口弁１３が設けられている。A resin extraction pipe 10 is connected to each of the desalination towers 2. In this embodiment, the extraction pipe 10 is capable of receiving at least one ion-exchange resin of at least one of the desalination towers 2. It is connected to an external tower 11 having a capacity. The out-of-system tower 11 is configured to be usable, for example, for temporarily storing the ion-exchange resin at the time of regular inspection of the desalination tower 2 and for backwashing the resin taken out. The resin outlet pipe 10 is provided with a resin outlet valve 12 and a resin inlet valve 13 for the desalination tower.
【００２５】系外塔１１には、樹脂出口弁１４、廃棄樹
脂出口弁１５を備えた廃棄樹脂移送管１６が従来同様接
続されており、後述の樹脂直接廃棄ライン以外に、系外
塔１１からも廃棄樹脂貯蔵タンク１７へ樹脂を移送でき
るようになっている。A waste resin transfer pipe 16 having a resin outlet valve 14 and a waste resin outlet valve 15 is connected to the external system tower 11 in the same manner as in the prior art. Also, the resin can be transferred to the waste resin storage tank 17.
【００２６】新樹脂供給設備１８からは、新イオン交換
樹脂が、新樹脂移送管１９を、新樹脂受け入れ弁２０を
介して、系外塔１１へ供給できるようになっている。移
送管１９は、本実施態様では、系外塔１１への入口直前
で樹脂取出管１０と合流している。From the new resin supply equipment 18, new ion exchange resin can be supplied to the external tower 11 through the new resin transfer pipe 19 via the new resin receiving valve 20. In this embodiment, the transfer pipe 19 joins with the resin take-out pipe 10 immediately before the entrance to the out-of-system tower 11.
【００２７】廃棄樹脂移送管１６は途中で分岐されて、
脱塩塔２へと接続する樹脂送給管２１が設けられてお
り、該送給管２１には樹脂出口弁２２、脱塩塔樹脂入口
弁２３が設けられている。この樹脂供給管２１を介し
て、新イオン交換樹脂あるいは逆洗等の処理が施された
イオン交換樹脂が、系外塔１１から脱塩塔２へと送られ
るようになっている。The waste resin transfer pipe 16 is branched on the way.
A resin supply pipe 21 connected to the desalination tower 2 is provided, and the resin supply pipe 21 is provided with a resin outlet valve 22 and a desalination tower resin inlet valve 23. Via this resin supply pipe 21, a new ion exchange resin or an ion exchange resin subjected to a treatment such as backwashing is sent from the out-of-system tower 11 to the desalination tower 2.
【００２８】このように構成された系に、脱塩塔２と復
水脱塩装置系統の外部との間でイオン交換樹脂を直接移
送可能な移送ラインが設けられる。本実施態様では、イ
オン交換樹脂の直接移送ラインは、系外塔１１をバイパ
スして脱塩塔２における使用済みのイオン交換樹脂を直
接廃棄するラインとして設けられ、樹脂取出管１０を途
中で分岐して、直接、廃棄樹脂貯蔵タンク１７へと接続
するライン２４として設けられている。この樹脂直接廃
棄ライン２４には、直接廃棄弁２５が設けられている。The system configured as described above is provided with a transfer line capable of directly transferring the ion exchange resin between the desalination tower 2 and the outside of the condensate desalination system. In the present embodiment, the direct transfer line for the ion exchange resin is provided as a line for directly discarding the used ion exchange resin in the desalination tower 2 by bypassing the out-of-system tower 11, and branching off the resin extraction pipe 10 in the middle. Then, it is provided as a line 24 that is directly connected to the waste resin storage tank 17. The resin direct disposal line 24 is provided with a direct disposal valve 25.
【００２９】このように構成された復水脱塩装置１にお
いては、脱塩塔２内のイオン交換樹脂交換時の使用済み
樹脂の廃棄は次のように行われる。脱塩塔入口弁５およ
び脱塩塔出口弁６を閉、脱塩塔樹脂取出弁１２および直
接廃棄弁２５を開とし、図示しない補給水ラインおよび
空気ラインからの水および空気により樹脂直接廃棄ライ
ン２４を介して、脱塩塔２から使用済み樹脂を廃棄樹脂
貯蔵タンク１７へ直接移送できる。In the condensate desalination apparatus 1 configured as described above, the used resin is discarded at the time of ion exchange resin exchange in the desalination tower 2 as follows. The desalting tower inlet valve 5 and the desalting tower outlet valve 6 are closed, the desalting tower resin take-out valve 12 and the direct disposal valve 25 are opened, and the resin direct disposal line is provided by water and air from a makeup water line and an air line (not shown). The used resin can be directly transferred from the desalting tower 2 to the waste resin storage tank 17 via the tank 24.
【００３０】従来方法のように一旦系外塔１１に収容す
ることなく、使用済みのイオン交換樹脂を直接廃棄でき
るので、廃棄に要する時間が大幅に短縮される。また、
廃棄時の樹脂移送に要する水量も大幅に低減され、その
使用により放射性廃液として扱わなければならなくなる
廃液の発生量も大幅に低減される。したがって、イオン
交換樹脂の交換に要する時間が大幅に短縮され、放射性
廃液処理系への負荷も大幅に低減される。Since the used ion exchange resin can be directly discarded without being once stored in the out-of-system tower 11 unlike the conventional method, the time required for discarding is greatly reduced. Also,
The amount of water required to transfer the resin at the time of disposal is greatly reduced, and the amount of waste liquid that must be treated as a radioactive waste liquid due to its use is also significantly reduced. Therefore, the time required for replacing the ion exchange resin is significantly reduced, and the load on the radioactive waste liquid treatment system is also significantly reduced.
【００３１】図２は、本発明の第２実施態様に係る復水
脱塩装置３１を示しており、上記樹脂直接廃棄ライン２
４が設けられない代りに、新イオン交換樹脂を直接受け
入れるための新樹脂直接送給ライン３２が設けられてい
る。新樹脂直接送給ライン３２は、樹脂送給管２１の途
中に、系外塔１１をバイパスする形態で接続されてい
る。該直接送給ライン３２には、直接受け入れ弁３３が
設けられている。その他の構成は、第１実施態様に準じ
るので、図１に付したのと同一の符号を付すことにより
説明を省略する。FIG. 2 shows a condensate desalination apparatus 31 according to a second embodiment of the present invention.
Instead of being provided with 4, a new resin direct feed line 32 for directly receiving a new ion exchange resin is provided. The new resin direct feed line 32 is connected in the middle of the resin feed pipe 21 so as to bypass the external tower 11. The direct feed line 32 is provided with a direct receiving valve 33. Other configurations are the same as those in the first embodiment, and the description is omitted by attaching the same reference numerals as those shown in FIG.
【００３２】このように構成された復水脱塩装置３１に
おいては、直接受け入れ弁３３および脱塩塔樹脂入口弁
２３を開くことにより、新樹脂供給設備１８からの新イ
オン交換樹脂が新樹脂直接送給ライン３２および樹脂送
給管２１を介して、直接脱塩塔２へ送給される。In the thus-constructed condensate desalination apparatus 31, by opening the direct receiving valve 33 and the desalination tower resin inlet valve 23, the new ion-exchange resin from the new resin supply equipment 18 is supplied directly to the new resin. It is fed directly to the desalination tower 2 via the feed line 32 and the resin feed pipe 21.
【００３３】従来方法のように一旦系外塔１１に収容す
ることなく、新イオン交換樹脂が直接脱塩塔２へ送給さ
れるので、新樹脂受け入れに要する時間が大幅に短縮さ
れる。また、樹脂送給に要する水量も低減される。した
がって、イオン交換樹脂の交換に要する時間が大幅に短
縮され、かつ、給水設備への負荷も低減される。Since the new ion exchange resin is directly sent to the desalination tower 2 without being once stored in the out-of-system column 11 as in the conventional method, the time required for receiving the new resin is greatly reduced. Further, the amount of water required for feeding the resin is also reduced. Therefore, the time required for replacing the ion exchange resin is significantly reduced, and the load on the water supply equipment is also reduced.
【００３４】図３は、本発明の第３実施態様に係る復水
脱塩装置４１を示している。本実施態様は、上述の第１
実施態様と第２実施態様に係る構成を両方とも実施した
もので、樹脂直接廃棄ライン２４と新樹脂直接送給ライ
ン３２との両方を設けたものである。各ライン２４、３
２の構成およびその他の構成は、第１実施態様および第
２実施態様に準じるので、図１、図２に付したのと同一
の符号を付すことにより、具体的な構成の説明を省略す
る。FIG. 3 shows a condensate desalination apparatus 41 according to a third embodiment of the present invention. This embodiment is similar to the first embodiment described above.
In this embodiment, both the configuration according to the embodiment and the configuration according to the second embodiment are implemented, and both the resin direct disposal line 24 and the new resin direct supply line 32 are provided. Each line 24, 3
Since the configuration of 2 and other configurations are in accordance with the first embodiment and the second embodiment, the description of the specific configuration will be omitted by attaching the same reference numerals as those shown in FIGS.
【００３５】このように構成された復水脱塩装置４１に
おいては、樹脂廃棄および新樹脂受け入れに伴う樹脂移
送の回数が最小化され、移送に要する水量も最小化され
る。したがって、イオン交換樹脂の交換に要する時間が
最短化され、放射性廃液の発生量も最小とされる。In the condensate desalination apparatus 41 configured as described above, the number of times of resin transfer accompanying resin disposal and new resin reception is minimized, and the amount of water required for transfer is also minimized. Therefore, the time required for replacing the ion exchange resin is minimized, and the amount of radioactive waste liquid generated is also minimized.
【００３６】なお、上記各実施態様において、たとえば
脱塩塔２内のイオン交換樹脂を単に一時保管したり、逆
洗等により再使用に供する場合には、従来方法同様、系
外塔１１に移送し、そこで一時保管したり必要な処理を
施した後、脱塩塔２へと返送することができる。In each of the above embodiments, for example, when the ion exchange resin in the desalting tower 2 is simply stored temporarily or used again by backwashing or the like, it is transferred to the out-of-system tower 11 as in the conventional method. Then, after being temporarily stored or subjected to necessary treatment, it can be returned to the desalination tower 2.
【００３７】また、上記各実施態様は、非再生運用のＢ
ＷＲ型原子力発電所に適用した例について説明したが、
本発明はこれに限らず、脱塩塔内のイオン交換樹脂の廃
棄や新樹脂受け入れの必要が生じる、あらゆるタイプの
復水脱塩装置に適用可能である。In each of the above embodiments, the non-reproduction operation B
Although the example applied to the WR type nuclear power plant was explained,
The present invention is not limited to this, and can be applied to any type of condensate desalination apparatus in which the ion exchange resin in the desalination tower needs to be discarded or a new resin needs to be received.
【００３８】[0038]
【発明の効果】以上説明したように、本発明の復水脱塩
装置によれば、使用済みのイオン交換樹脂の廃棄または
／および新樹脂の受け入れに要する時間を大幅に短縮で
き、緊急時等におけるイオン交換樹脂の交換にも迅速に
対応することが可能になる。また、樹脂の移送に要する
水量も大幅に低減できるため、放射性廃液処理系への負
荷を低減することができる。As described above, according to the condensate desalination apparatus of the present invention, the time required for disposal of used ion exchange resin and / or acceptance of new resin can be greatly reduced, and in the case of emergency, etc. It is possible to quickly respond to the exchange of the ion exchange resin in the above. Further, since the amount of water required for transferring the resin can be greatly reduced, the load on the radioactive waste liquid treatment system can be reduced.
【図１】本発明の第１実施態様に係る復水脱塩装置の機
器系統図である。FIG. 1 is a system diagram of a condensate desalination apparatus according to a first embodiment of the present invention.
【図２】本発明の第２実施態様に係る復水脱塩装置の機
器系統図である。FIG. 2 is an equipment system diagram of a condensate desalination apparatus according to a second embodiment of the present invention.
【図３】本発明の第３実施態様に係る復水脱塩装置の機
器系統図である。FIG. 3 is an equipment system diagram of a condensate desalination apparatus according to a third embodiment of the present invention.
【図４】従来の復水脱塩装置の機器系統図である。FIG. 4 is an equipment system diagram of a conventional condensate desalination apparatus.
１、３１、４１ 復水脱塩装置 ２ 脱塩塔 ３ 復水入口配管 ４ 復水出口配管 ５ 復水入口弁 ６ 復水出口弁 ７ 海水ライン ８ 復水器 ９ 復水濾過器 １０ 樹脂取出管 １１ 系外塔 １２ 脱塩塔樹脂出口弁 １３ 樹脂入口弁 １４ 樹脂出口弁 １５ 廃棄樹脂出口弁 １６ 廃棄樹脂移送管 １７ 廃棄樹脂貯蔵タンク １８ 新樹脂供給設備 １９ 新樹脂移送管 ２０ 新樹脂受け入れ弁 ２１ 樹脂送給管 ２２ 樹脂出口弁 ２３ 脱塩塔樹脂入口弁 ２４ 樹脂直接廃棄ライン ２５ 直接廃棄弁 ３２ 新樹脂直接送給ライン ３３ 直接受け入れ弁 1, 31, 41 Condensate desalination device 2 Desalination tower 3 Condensate inlet pipe 4 Condensate outlet pipe 5 Condensate inlet valve 6 Condensate outlet valve 7 Seawater line 8 Condenser 9 Condensate filter 10 Resin take-off pipe 11 Outer system tower 12 Desalination tower resin outlet valve 13 Resin inlet valve 14 Resin outlet valve 15 Waste resin outlet valve 16 Waste resin transfer pipe 17 Waste resin storage tank 18 New resin supply equipment 19 New resin transfer pipe 20 New resin receiving valve 21 Resin feed pipe 22 Resin outlet valve 23 Desalination tower resin inlet valve 24 Resin direct disposal line 25 Direct disposal valve 32 New resin direct supply line 33 Direct receiving valve
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ２１Ｆ 9/12 ５１２ Ｇ２１Ｃ 19/30 Ｃ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) G21F 9/12 512 G21C 19/30 C
Claims (7)
を有する復水脱塩装置に、該脱塩塔と復水脱塩装置系統
の外部との間でイオン交換樹脂を直接移送可能な移送ラ
インを設けたことを特徴とする復水脱塩装置。An ion-exchange resin can be directly transferred between a desalination tower and the outside of a condensate-desalination system to a condensate desalination apparatus having a desalination tower filled with an ion-exchange resin. A condensate desalination apparatus comprising a transfer line.
能な系外塔を有し、前記移送ラインが該系外塔をバイパ
スして脱塩塔と復水脱塩装置系統の外部とを直接接続し
ている、請求項１の復水脱塩装置。2. An external system capable of receiving an ion exchange resin in a desalination tower, wherein the transfer line bypasses the external system tower and connects the desalination tower and the outside of a condensate desalination system. The condensate desalination apparatus according to claim 1, which is directly connected.
のイオン交換樹脂を直接廃棄するラインである、請求項
１または２の復水脱塩装置。3. The condensate desalination apparatus according to claim 1, wherein the transfer line is a line for directly discarding the used ion exchange resin from the desalination tower.
換樹脂を直接送給するラインである、請求項１または２
の復水脱塩装置。4. The transfer line according to claim 1, wherein the transfer line is a line for directly feeding the new ion exchange resin to the desalination tower.
Condensing desalination equipment.
のイオン交換樹脂を直接廃棄するラインと、脱塩塔へ新
イオン交換樹脂を直接送給するラインとの両方を含む、
請求項１または２の復水脱塩装置。5. The transfer line includes both a line for directly discarding used ion exchange resin from a desalination tower and a line for directly feeding new ion exchange resin to a desalination tower.
The condensate desalination apparatus according to claim 1 or 2.
が設けられている、請求項１ないし５のいずれかに記載
の復水脱塩装置。6. The condensate desalination apparatus according to claim 1, wherein a condensate filter is provided on an upstream side with respect to the condensate water flow system.
である、請求項１ないし６のいずれかに記載の復水脱塩
装置。7. The condensate desalination apparatus according to claim 1, which is used for a boiling water nuclear power plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10314633A JP2000140839A (en) | 1998-11-05 | 1998-11-05 | Desalting device of condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10314633A JP2000140839A (en) | 1998-11-05 | 1998-11-05 | Desalting device of condensate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000140839A true JP2000140839A (en) | 2000-05-23 |
Family
ID=18055676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10314633A Pending JP2000140839A (en) | 1998-11-05 | 1998-11-05 | Desalting device of condensate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000140839A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840769A (en) * | 2011-06-20 | 2012-12-26 | 逸盛大化石化有限公司 | Closed cycle seawater cooling system for flow device |
| KR101385667B1 (en) | 2013-01-23 | 2014-04-21 | (주)대우건설 | System and method for transfering and treating radioactive spent resin |
| KR101385666B1 (en) | 2013-01-23 | 2014-04-24 | (주)대우건설 | System and method for treating radioactive spent resin |
| WO2014115982A1 (en) * | 2013-01-23 | 2014-07-31 | (주)대우건설 | System for transferring and treating radioactive spent resin, and method for transferring and treating radioactive spent resin using same |
| CN106855330A (en) * | 2017-01-04 | 2017-06-16 | 国网辽宁省电力有限公司本溪供电公司 | The filter method for being exchanged heat suitable for power plant and being purified |
| CN112466504A (en) * | 2021-02-02 | 2021-03-09 | 杭州景业智能科技股份有限公司 | Automatic resin loading and unloading system and method used in radioactive environment |
-
1998
- 1998-11-05 JP JP10314633A patent/JP2000140839A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840769A (en) * | 2011-06-20 | 2012-12-26 | 逸盛大化石化有限公司 | Closed cycle seawater cooling system for flow device |
| KR101385667B1 (en) | 2013-01-23 | 2014-04-21 | (주)대우건설 | System and method for transfering and treating radioactive spent resin |
| KR101385666B1 (en) | 2013-01-23 | 2014-04-24 | (주)대우건설 | System and method for treating radioactive spent resin |
| WO2014115982A1 (en) * | 2013-01-23 | 2014-07-31 | (주)대우건설 | System for transferring and treating radioactive spent resin, and method for transferring and treating radioactive spent resin using same |
| CN106855330A (en) * | 2017-01-04 | 2017-06-16 | 国网辽宁省电力有限公司本溪供电公司 | The filter method for being exchanged heat suitable for power plant and being purified |
| CN106855330B (en) * | 2017-01-04 | 2020-01-31 | 国网辽宁省电力有限公司本溪供电公司 | Filtering method suitable for heat exchange and purification of power plant |
| CN112466504A (en) * | 2021-02-02 | 2021-03-09 | 杭州景业智能科技股份有限公司 | Automatic resin loading and unloading system and method used in radioactive environment |
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