JPS62201392A - Automatic boric acid melter - Google Patents
Automatic boric acid melterInfo
- Publication number
- JPS62201392A JPS62201392A JP61043138A JP4313886A JPS62201392A JP S62201392 A JPS62201392 A JP S62201392A JP 61043138 A JP61043138 A JP 61043138A JP 4313886 A JP4313886 A JP 4313886A JP S62201392 A JPS62201392 A JP S62201392A
- Authority
- JP
- Japan
- Prior art keywords
- boric acid
- water
- tank
- valve
- dissolving
- 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
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 title claims description 111
- 239000004327 boric acid Substances 0.000 title claims description 111
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000002826 coolant Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- Y02E30/30—Nuclear fission reactors
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、原子力プラントにおけるほう酸溶解作業に利
用される自動ほう酸溶解装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic boric acid dissolving device used for boric acid dissolving work in a nuclear power plant.
従来、原子力プラントにおけるほう酸溶解作業は、人力
により次の５工程で行なわれていた。すなわち、先ず第
１の工程としてほう酸補給タンクに水を張るための弁操
作を行ない、次いで、上記タンク内を加熱するための弁
操作を行なう。その後、第３の工程としてほう耐裂を運
搬して袋内のほう酸を上記タンク内に投入し、次いで、
攪拌間の起動スイッチをＯＮ入力し、最後に、移送のた
めの弁操作を行なっていた。Conventionally, boric acid dissolution work in nuclear power plants has been carried out manually in the following five steps. That is, first, as a first step, a valve is operated to fill the boric acid replenishment tank with water, and then a valve is operated to heat the inside of the tank. After that, in the third step, the boric acid is transported and the boric acid in the bag is put into the tank, and then,
The starting switch during stirring was turned on, and finally the valve was operated for transfer.
しかるに、上記各作業工程において、特に第３の工程で
運搬するほう耐裂は通常１個当り２．５Ｋｇの重量があ
り、また、ほう酸補給タンクへは１回につき５０Ｋｇの
ほう酸を１日１５回程度投入しなければならず、この作
業を試運転時には約３０日間、定検時には約５０日間繰
返さなければならなかった。また、前記ほう酸補給タン
ク内の水位および蒸気加熱によるタンク内温度は常に高
精度に制御する必要があり、各弁操作に細心の注意を払
わねばならなかった。このため、大変な労力が必要であ
り、自動化が望まれていた。However, in each of the above-mentioned work steps, the tear-resistant material transported in the third step usually weighs 2.5 kg per piece, and 50 kg of boric acid is transported to the boric acid supply tank about 15 times a day. This work had to be repeated for about 30 days during test runs and about 50 days during regular inspections. Further, the water level in the boric acid replenishment tank and the temperature inside the tank due to steam heating must be constantly controlled with high precision, and each valve must be operated with great care. For this reason, a great deal of labor is required, and automation has been desired.
そこで本考案は、原子力プラントにおけるほう酸溶解工
程の自動化が可能で、労力の著しい軽減および操作性の
向上をはかり得る自動ほう酸溶解装置を提供することを
目的とする。Therefore, an object of the present invention is to provide an automatic boric acid dissolving device that can automate the boric acid dissolving process in a nuclear power plant, significantly reducing labor and improving operability.
Ｃ問題点を解決するための手段）
本発明は、上記問題点を解決し目的を達成するために、
次のような手段を講じたことを特徴としている。すなわ
ち、原子力プラントの一次冷却材系統に連絡しかつ撹拌
機を備えたほう酸補給タンクと、このほう酸補給タンク
の上部から一定但のほう酸を投入するほう酸投入手段と
、このほう酸投入手段により投入されたほう酸を前記撹
拌機により溶解しほう酸水として外部へ搬送するほう酸
水搬送手段とを備え、前記撹拌機、ほう酸投入手段およ
びほう酸水搬送手段を自動制御するようにしたことを特
徴としている。C) Means for Solving Problems) In order to solve the above problems and achieve the purpose, the present invention has the following steps:
It is characterized by the following measures: In other words, a boric acid supply tank connected to the primary coolant system of the nuclear power plant and equipped with an agitator, a boric acid supply means for supplying a certain amount of boric acid from the top of the boric acid supply tank, and a boric acid supply means for supplying a certain amount of boric acid from the top of the boric acid supply tank. The present invention is characterized in that it is equipped with a boric acid water conveying means for dissolving boric acid by the stirrer and conveying the boric acid water to the outside as boric acid water, and that the stirrer, the boric acid inputting means, and the boric acid water conveying means are automatically controlled.
Ｃ作用〕
このような手段を講じたことにより、ほう酸溶解の各工
程がプログラム制御により自動的に行なわれる。C Effect] By taking such measures, each step of dissolving boric acid is automatically performed under program control.
第１図は本発明の第１の実施例の構成を示す模式図であ
る。同図において、１は原子力プラントにおける一次冷
却材系統に連結したほう酸補給タンクであり、撹拌機２
が備えられている。このほう酸補給タンク１には水を供
給する水通流管３゜タンク内を加熱するための蒸気を供
給する蒸気通流管４および撹拌されたほう酸水を移送す
るためのほう酸水移送管５とが接続されており、これら
台管３〜５にはそれぞれ水張り弁３ａ、温度制御弁４ａ
、ほう酸水移送弁５ａが設けられている。FIG. 1 is a schematic diagram showing the configuration of a first embodiment of the present invention. In the figure, 1 is a boric acid supply tank connected to the primary coolant system in a nuclear power plant, and agitator 2
is provided. This boric acid supply tank 1 includes a water flow pipe 3 for supplying water, a steam flow pipe 4 for supplying steam to heat the inside of the tank, and a boric acid water transfer pipe 5 for transporting stirred boric acid water. are connected to these main pipes 3 to 5, respectively, a water filling valve 3a and a temperature control valve 4a.
, a boric acid water transfer valve 5a is provided.
一方、上記ほう酸補給タンク１の上部には大量のほう酸
を貯留したほう酸貯留タンク６が取付けられており、こ
れら両タンク１および６間を連結する連結管７にはほう
酸止め弁８およびほう酸移送弁９が設けられ、これら両
弁８．９間にて所望伍のほう酸が貯留され、前記ほう酸
補給タンク１に投入可能となっている。そして、上記両
弁８゜９および前記合弁３ａ、４ａ、５ａの開度はマイ
クロコンピュータ（以下マイコンと略称する）１０によ
って自動制御されるものとなっている。On the other hand, a boric acid storage tank 6 that stores a large amount of boric acid is attached to the upper part of the boric acid supply tank 1, and a boric acid stop valve 8 and a boric acid transfer valve are connected to a connecting pipe 7 that connects both tanks 1 and 6. A desired amount of boric acid is stored between these two valves 8 and 9, and can be introduced into the boric acid supply tank 1. The opening degrees of the two valves 8.9 and the joint valves 3a, 4a, and 5a are automatically controlled by a microcomputer (hereinafter referred to as microcomputer) 10.
なお、ほう酸貯留タンク６において符号１１はタンク６
内の湿分を除去するための乾燥器であり、１２はほう酸
の凝固を無くするためにふるいをかけるバイブレータで
ある。また、前記ほう酸移送弁９は可動式となっており
、弁自体にＯリングを有しほう酸をせき止め可能となっ
ている。In addition, in the boric acid storage tank 6, the reference numeral 11 indicates the tank 6.
12 is a vibrator that sieves the boric acid to prevent it from coagulating. Further, the boric acid transfer valve 9 is of a movable type, and has an O-ring on the valve itself so that boric acid can be dammed up.
次に１本８置の動作について説明する。先ず、オペレー
タはマイコン１０に対しほう酸補給タンク１内の水位（
上限、下限）、水温およびほう酸投入量を設定するとと
もにほう酸溶解回数を入力し、起動をかける。そうする
と、水張り弁３ａが開状態となり、ほう酸補給タンク１
に水が供給されてタンク水位が上昇する。そして、この
タンク水位が上限設定値に達すると、上記水張り弁３ａ
は閉動作する。次いで、温度制御弁４ａが開状態となり
、蒸気が通流されてほう酸補給タンク１内の水温が上昇
する。そして、水温が設定温度に到達すると温度制御弁
４ａはこれを維持するように開閉制御される。このとき
、ｌ孟う酸止め弁８とほう酸移送弁９との間の容量は設
定されたほう酸投入伍となるようにほう酸移送弁９が移
動して決定されており、ほう酸止め弁８が開、ほう酸移
送弁９が閉となってこれら両弁８，９間にはほう酸貯留
タンク６から与えられたほう酸が貯留されている。その
後、ほう酸止め弁８は閉となり、ほう酸移送弁９は開と
なって、一定量のほう酸がほう酸補給タンク１内に投入
され、投入後は再びほう酸止め弁８は開、ほう酸移送弁
９は閉となる。この時点で、撹拌機２が起動し、ほう酸
の溶解がタンク１内で行なわれる。一定時間経過後、ほ
う酸の溶解が終了した時点で撹拌機２は停止し、同時に
ほう酸水移送弁５ａが開状態となってほう酸水の移送が
始まる。そして、ほう酸補給タンク１内の水位が下限設
定値に達すると上記ほう酸水移送弁５ａは閉動作し、ほ
う酸溶解工程の１回目が終了する。以下、同様の工程が
設定回数だけ繰返される。Next, the operation of one 8-position system will be explained. First, the operator instructs the microcomputer 10 about the water level in the boric acid replenishment tank 1 (
Set the upper limit, lower limit), water temperature and amount of boric acid added, enter the number of times of boric acid dissolution, and start. Then, the water filling valve 3a becomes open, and the boric acid replenishment tank 1
water is supplied to the tank and the tank water level rises. When this tank water level reaches the upper limit set value, the water filling valve 3a
is closed. Next, the temperature control valve 4a is opened, steam is passed through, and the water temperature in the boric acid replenishment tank 1 rises. When the water temperature reaches the set temperature, the temperature control valve 4a is controlled to open and close to maintain this temperature. At this time, the capacity between the boric acid stop valve 8 and the boric acid transfer valve 9 is determined by moving the boric acid transfer valve 9 so that the set amount of boric acid is introduced, and the boric acid stop valve 8 is opened. The boric acid transfer valve 9 is closed, and the boric acid supplied from the boric acid storage tank 6 is stored between these two valves 8 and 9. After that, the boric acid stop valve 8 is closed, the boric acid transfer valve 9 is opened, and a certain amount of boric acid is poured into the boric acid supply tank 1. After the boric acid is fed, the boric acid stop valve 8 is opened again, and the boric acid transfer valve 9 is Closed. At this point, the stirrer 2 is started and the boric acid is dissolved in the tank 1. After a certain period of time has passed, when the dissolution of the boric acid is completed, the stirrer 2 is stopped, and at the same time, the boric acid water transfer valve 5a is opened and the transfer of the boric acid water is started. When the water level in the boric acid supply tank 1 reaches the lower limit setting value, the boric acid water transfer valve 5a is closed, and the first boric acid dissolving step is completed. Thereafter, similar steps are repeated a set number of times.
このように、本実施例によれば、ほう酸補給タンク１内
の水位、水温が自り制御され、かつほう酸補給タンク１
内へのほう酸の投入も自動化されている。したがって、
ほう酸溶解作業の一連の工程が自動化されるので、作業
者の労力軽減をはかり得る上、タンク１内の水位、水温
の調整も簡単にかつ高精度に行なうことができる。As described above, according to this embodiment, the water level and water temperature in the boric acid replenishment tank 1 are self-controlled, and the boric acid replenishment tank 1
The injection of boric acid into the tank is also automated. therefore,
Since the series of processes for dissolving boric acid is automated, the labor of the operator can be reduced, and the water level and temperature in the tank 1 can be adjusted easily and with high precision.
次に、本発明の第２の実施例について説明する。Next, a second embodiment of the present invention will be described.
第２図は本発明の第２の実施例の構成を示す系統図であ
る。前記第１の実施例では、作業習は予め大量のほう酸
をほう酸貯留タンク６まで運搬しなければならなかった
が、本実施例ではこの運搬作業の自動化をもはかるもの
である。すなわち、第２図において、２１はほう耐裂を
図中矢印へ方向に搬送する装置送装置、２２は搬送され
たほう耐裂の搬送装置側端部を固定し他端部を切断して
、袋内のほう酸を投入する投入装置、２３は上記投入装
置２２の動作を制御する投入装置制御ユニツ１−１２４
はほう酸投入口、２５は投入後のほう耐裂を収納する袋
収納器、２６はほう耐裂を上記袋収納器２５に導くシュ
ータである。そして、装置送装置２１および投入装置制
御ユニット２３はマイコン１０により自動制御さ札るも
のとなっている。FIG. 2 is a system diagram showing the configuration of a second embodiment of the present invention. In the first embodiment, a large amount of boric acid had to be transported to the boric acid storage tank 6 in advance, but this embodiment also aims to automate this transport work. That is, in FIG. 2, reference numeral 21 denotes a feeding device for conveying the tear-proof material in the direction indicated by the arrow in the figure, and 22 denotes a feeding device for transporting the tear-resistant material in the direction indicated by the arrow in the figure, and 22 fixes the end of the transported material for tear-proofing on the transport device side, cuts the other end, and inserts the material into the bag. A dosing device 23 is a dosing device control unit 1-124 for controlling the operation of the dosing device 22.
Reference numeral 25 denotes a boric acid input port, 25 a bag storage device for storing the tear-proof material after charging, and 26 a chute for guiding the tear-resistant material to the bag storage device 25. The device feeding device 21 and the feeding device control unit 23 are automatically controlled and controlled by the microcomputer 10.
このように構成された本実施例においては、先ず前記第
１の実施例と同様にマイコン１０に対してほう酸溶解回
数等を入力し起動をかけると、装置送装置２１が動作し
てほう耐裂が矢印へ方向に移動し、投入装置２２まで達
する。そうすると、この投入装置２２によりほう耐裂の
搬送装置２１側の端部が固定され、他端部は切断される
。次いで、固定端部が持上げられて袋内のほう酸が投入
口２４からほう酸補給タンク１内に投入される。In this embodiment configured as described above, first, as in the first embodiment, when the microcomputer 10 is started by inputting the number of times of boric acid dissolution, etc., the device feeding device 21 is operated to increase the tear resistance. It moves in the direction of the arrow and reaches the loading device 22. Then, the end of the tear-resistant material on the conveying device 21 side is fixed by the feeding device 22, and the other end is cut. Next, the fixed end is lifted and the boric acid in the bag is thrown into the boric acid replenishment tank 1 through the inlet 24.
投入終了後、投入装置２２は初期位置に復帰すると共に
ほう耐裂の固定を解除し、ほう耐裂はシュータ２６を通
って袋収納器２５に収納される。なお、ほう！！補給タ
ンク１に接続された多弁３ａ〜５ａの開閉制御および撹
拌機２の駆動制御は前記第１の実施例の場合と同様であ
り、ここでは省略する。After the loading is completed, the loading device 22 returns to the initial position and releases the fixation of the tear-proof bag, and the tear-proof bag passes through the chute 26 and is stored in the bag storage device 25. By the way, hoo! ! Opening/closing control of the multiple valves 3a to 5a connected to the replenishment tank 1 and drive control of the agitator 2 are the same as in the first embodiment, and will not be described here.
このように本実施例によれば、ほう耐裂の搬送も自動化
されるので、前記第１の実施例に比してより一層の労力
軽減をはかり得る。As described above, according to this embodiment, since the transport of the tear-resistant material is also automated, it is possible to further reduce labor compared to the first embodiment.
なお、本発明は前記実施例に限定されるものではなく、
本発明の要旨を逸脱しない範囲で種々変形実施可能であ
るのは勿論である。Note that the present invention is not limited to the above embodiments,
Of course, various modifications can be made without departing from the spirit of the invention.
以上詳述したように、本発明によれば、原子力プラント
の一次冷却材系統に遠路しかつ撹拌機を備えたほう酸補
給タンクと、このほう酸補給タンクの上部から一定量の
ほう酸を投入するほう酸投入手段と、このほう酸投入手
段により投入されたほう酸を前記屓拌艮により溶解しほ
う酸水として外部へ搬送するほう酸水搬送手段とを備え
、前記撹拌機、ほう酸投入手段およびほう酸水搬送手段
を自動制御するようにしたので、原子力プラントにおけ
るほう酸溶解工程の自動化が可能で、労力の著しい軽減
および操作性の向上をはかり得る自動ほう酸溶解装置を
提供できる。As detailed above, according to the present invention, there is provided a boric acid replenishment tank that has a long route to the primary coolant system of a nuclear power plant and is equipped with an agitator, and a boric acid input that injects a certain amount of boric acid from the top of the boric acid replenishment tank. and a boric acid water conveying means for dissolving the boric acid introduced by the boric acid introducing means by the stirring device and conveying the boric acid water to the outside as boric acid water, and automatically controlling the agitator, the boric acid introducing means, and the boric acid water conveying means. As a result, it is possible to automate the boric acid dissolving process in a nuclear power plant, and it is possible to provide an automatic boric acid dissolving device that can significantly reduce labor and improve operability.
第１図は本発明の第１の実Ｍｊ、例の構成を示す系統図
、第２図は本発明の第２の実施例の構成を示す系統図で
ある。
１・・・ほう酸補給タンク、２・・・撹拌機、３ａ・・
・水張り弁、４ａ・・・温度制御弁、５ａ・・・ほう酸
水移送弁、６・・・ほう酸貯留タンク、８・・・ほう酸
止め弁、９・・・ほう酸移送弁、１０・・・マイコン、
２１・・・装置送装置、２２・・・投入装置、２３・・
・投入装置制御ユニット、２５・・・袋収納器、２６・
・・シュータ。FIG. 1 is a system diagram showing the configuration of a first example Mj of the present invention, and FIG. 2 is a system diagram showing the configuration of a second embodiment of the present invention. 1... Boric acid supply tank, 2... Stirrer, 3a...
・Water filling valve, 4a... Temperature control valve, 5a... Boric acid water transfer valve, 6... Boric acid storage tank, 8... Boric acid stop valve, 9... Boric acid transfer valve, 10... Microcomputer ,
21... device feeding device, 22... loading device, 23...
- Loading device control unit, 25... Bag storage device, 26.
... Shooter.
Claims (1)
備えたほう酸補給タンクと、このほう酸補給タンクの上
部から一定量のほう酸を投入するほう酸投入手段と、こ
のほう酸投入手段により投入されたほう酸を前記撹拌機
により溶解しほう酸水として外部へ搬送するほう酸水搬
送手段とを具備し、前記撹拌機、ほう酸投入手段および
ほう酸水搬送手段を自動制御するようにしたことを特徴
とする自動ほう酸溶解装置。A boric acid supply tank connected to the primary coolant system of a nuclear power plant and equipped with an agitator, a boric acid supply means for supplying a certain amount of boric acid from the top of the boric acid supply tank, and a boric acid supply means for supplying boric acid supplied by the boric acid supply means. An automatic boric acid dissolving device comprising: a boric acid water conveying means for dissolving the dissolved boric acid water by the stirrer and conveying the boric acid water to the outside as boric acid water, and automatically controlling the agitator, the boric acid inputting means, and the boric acid water conveying means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61043138A JPS62201392A (en) | 1986-02-28 | 1986-02-28 | Automatic boric acid melter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61043138A JPS62201392A (en) | 1986-02-28 | 1986-02-28 | Automatic boric acid melter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62201392A true JPS62201392A (en) | 1987-09-05 |
Family
ID=12655477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61043138A Pending JPS62201392A (en) | 1986-02-28 | 1986-02-28 | Automatic boric acid melter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201392A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530673B2 (en) * | 1975-03-07 | 1980-08-12 | ||
| JPS5729306B2 (en) * | 1977-07-09 | 1982-06-22 | ||
| JPS57159529A (en) * | 1981-03-26 | 1982-10-01 | Terumo Corp | Apparatus for continuously dissolving sodium bicarbonate |
-
1986
- 1986-02-28 JP JP61043138A patent/JPS62201392A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530673B2 (en) * | 1975-03-07 | 1980-08-12 | ||
| JPS5729306B2 (en) * | 1977-07-09 | 1982-06-22 | ||
| JPS57159529A (en) * | 1981-03-26 | 1982-10-01 | Terumo Corp | Apparatus for continuously dissolving sodium bicarbonate |
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