JPS6119000B2 - - Google Patents
Info
- Publication number
- JPS6119000B2 JPS6119000B2 JP54119948A JP11994879A JPS6119000B2 JP S6119000 B2 JPS6119000 B2 JP S6119000B2 JP 54119948 A JP54119948 A JP 54119948A JP 11994879 A JP11994879 A JP 11994879A JP S6119000 B2 JPS6119000 B2 JP S6119000B2
- Authority
- JP
- Japan
- Prior art keywords
- condensate
- condensate desalination
- differential pressure
- desalination
- standby
- 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
- 238000010612 desalination reaction Methods 0.000 claims description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005115 demineralization Methods 0.000 description 2
- 230000002328 demineralizing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003449 preventive effect 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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
【発明の詳細な説明】
本発明は復水脱塩装置の制御装置に係り、特に
複数台の復水脱塩装置を備える沸騰水形原子力発
電所に適用するに好適な復水脱塩装置の制御装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a condensate desalination device, and particularly to a control device for a condensate desalination device suitable for application to a boiling water nuclear power plant equipped with a plurality of condensate desalination devices. Regarding a control device.
従来から、沸騰水形原子力発電所に於いては、
復水脱塩装置の運転台数の制御及び逆洗時期の管
理は、運転員が復水脱塩装置の通過流量、復水脱
塩装置の入口−出口のヘツダ間差圧、運転開始時
よりの積算流量等に基いて判断して、これを手動
で行つている。 Traditionally, in boiling water nuclear power plants,
Controlling the number of condensate demineralizers in operation and managing the backwashing timing is done by the operator based on the flow rate through the condensate demineralizer, the differential pressure between the header between the inlet and the outlet of the condensate demineralizer, and the pressure from the start of operation. This is done manually by making judgments based on the cumulative flow rate, etc.
第１図は一般的な沸騰水形原子力発電所の給
水・復水系の系統図で、同図中１００は原子炉圧
力容器、２００は前記原子炉圧力容器１００から
の発生蒸気によつて駆動されるタービン、３００
は前記タービン２００で仕事を終えた蒸気を復水
する復水器、４００は前記復水器３００からの復
水を復水系に戻す低圧復水ポンプ、４は復水から
脱塩すべく復水系に複数台を並置される復水脱塩
装置、５００は脱塩された復水を給水系に与える
高圧復水ポンプ、６００は前記原子炉圧力容器１
００に給水する給水ポンプである。 Figure 1 is a system diagram of the water supply/condensate system of a typical boiling water nuclear power plant. turbine, 300
4 is a condenser that condenses the steam that has finished its work in the turbine 200; 400 is a low-pressure condensate pump that returns condensate from the condenser 300 to the condensate system; and 4 is a condensate system that desalinates the condensate. 500 is a high-pressure condensate pump that supplies desalted condensate to the water supply system; 600 is the reactor pressure vessel 1;
This is a water supply pump that supplies water to 00.
即ち、第１図からも明らかな如く、復水脱塩装
置４は沸騰水形原子力発電所の給水、復水系に直
列に介挿されるため、復水脱塩装置４の手動によ
る運転管理に失敗して、ここでの差圧が大きくな
ると高圧復水ポンプ５００、給水ポンプ６００が
吸込圧力低でトリツプし、全給水量喪失という事
態に陥る可能性がある。このため、復水脱塩装置
４の運転管理には高い信頼性が要求されるもの
で、これを手動に頼らず自動的に行う方策につい
ての要求が強かつた。 That is, as is clear from FIG. 1, manual operation management of the condensate desalination device 4 fails because the condensate desalination device 4 is inserted in series with the water supply and condensate systems of the boiling water nuclear power plant. If the differential pressure here increases, there is a possibility that the high pressure condensate pump 500 and the water supply pump 600 will trip due to low suction pressure, resulting in a loss of the entire water supply amount. For this reason, high reliability is required for the operation management of the condensate desalination apparatus 4, and there has been a strong demand for a method to perform this automatically without relying on manual operation.
従つて、本発明の目的はかかる従来技術を考慮
して復水脱塩装置の運転台数管理、逆洗管理を全
て自動化することにより、復水脱塩装置の運転管
理ミスをなくし、給復水系の信頼性を高めると共
に復水脱塩装置に異常が発生した時に予備の復水
脱塩装置を起動させ、また予備がない場合にもバ
イパス系を働かせる等して高圧復水ポンプ、給水
ポンプ等のトリツプを回避させる復水脱塩装置の
制御装置を提供するにある。 Therefore, the purpose of the present invention is to eliminate mistakes in the operation management of condensate desalination equipment and to improve the supply and condensate system by automating the management of the number of condensate desalination equipment in operation and the backwash management in consideration of the prior art. In addition to increasing the reliability of the condensate desalination equipment, when an abnormality occurs in the condensate demineralization equipment, the backup condensation demineralization equipment can be activated, and even if there is no backup, the bypass system can be activated to increase the reliability of high-pressure condensate pumps, water supply pumps, etc. An object of the present invention is to provide a control device for a condensate desalination device that avoids tripping.
上記の目的を達成するため本発明は、蒸気ター
ビン２００の復水系に介挿される複数台の復水脱
塩装置４を制御する制御装置において、複水台の
復水脱塩装置の全体の復水の流れをバイパスする
バイパス手段５と、全体への入口圧力と全体から
の出口圧力との差圧を検出する差圧発信器６と、
全体を通過する復水の流量を検出する流量発信器
７と、この流量発信器の出力にもとづいて復水脱
塩装置の運転台数を制御する手段と、差圧発信器
の出力が規定値を越えずかつ複数台の復水脱塩装
置に待機中のものがあるときは運転中の復水脱塩
装置に運転制限（例えば積算流量制御）を越えた
ものがあるか否かを判別し、この制限を越えたも
のがあるときは待機中のものを運転させて運転制
限を越えた復水脱塩装置を逆洗し、差圧検出器の
出力が規定以上でかつ待機中のものがあるときは
待機中のものを運転させて運転中の復水脱塩装置
のうち所望のものを逆洗し、差圧検出器の出力が
規定値以上のでかつ待機中のものがないときはバ
イパス手段により復水をバイパス制御する手段と
を備える復水脱塩装置の制御装置を提供するもの
である。 In order to achieve the above object, the present invention provides a control device for controlling a plurality of condensate desalination devices 4 inserted in a condensate system of a steam turbine 200. bypass means 5 for bypassing the flow of water; a differential pressure transmitter 6 for detecting the differential pressure between the inlet pressure to the whole and the outlet pressure from the whole;
A flow rate transmitter 7 for detecting the flow rate of condensate passing through the entire body, a means for controlling the number of operating condensate desalination equipment based on the output of this flow rate transmitter, and a means for controlling the number of operating condensate desalination apparatuses based on the output of this flow rate transmitter, If the limit is not exceeded and there are multiple condensate desalination devices on standby, it is determined whether any of the condensate desalination devices in operation exceeds the operational limit (for example, integrated flow rate control), If there is a device that exceeds this limit, the one that is on standby is operated and the condensate desalination equipment that exceeds the operating limit is backwashed, and the output of the differential pressure detector is above the specified value and there is one that is on standby. If the output of the differential pressure detector exceeds the specified value and there is no standby device, the bypass means is activated. The present invention provides a control device for a condensate desalination device, comprising means for bypass controlling condensate.
以下、図面によつて本発明を更に詳細に説明す
る。 Hereinafter, the present invention will be explained in more detail with reference to the drawings.
第２図は本発明の一実施例に係る復水脱塩装置
の制御装置の概略構成図で、同図中１は復水脱塩
装置４に復水ＣWを導く入口ヘツダ、２は復水脱
塩装置４の出口ヘツダ、３は前記復水脱塩装置４
毎に設けられ、対応する復水脱塩装置４の運転、
停止を行なわせる電動弁、５は前記入口ヘツダ１
と出口ヘツダ２を結ぶバイパス弁、６は入口ヘツ
ダ１と出口ヘツダ２間の差圧を検出して、差圧信
号ΔＰを発生する差圧発信器、７は出口ヘツダ２
からの流量を検出して流量信号CDFを発生する
流量発信器、８は制御装置本体、９は前記制御装
置本体８から各電動弁３に対して運転、停止命令
SSを与える信号線、１０は前記制御装置本体８
から各復水脱塩装置４に対して逆洗命令RWを与
える信号線、１１は前記制御装置本体８からバイ
パス弁５に対して開閉命令CDBを与える信号
線、１２は前記流量発信器７から前記制御装置本
体８に対して流量信号CDFを与える信号線、１
３は前記差圧発信器６から前記制御装置本体８に
対して差圧信号ΔＰを与える信号線、１４は復水
脱塩装置４の異常時に前記制御装置本体８から図
示しない再循環ポンプに対するランバツク命令
PLRを導出する信号線、１５は復水脱塩装置４の
異常時に前記制御装置本体８から低圧復水ポンプ
４００に対するトリツプ命令LPCを導出する信号
線である。 FIG. 2 is a schematic configuration diagram of a control device for a condensate desalination apparatus according to an embodiment of the present invention, in which 1 is an inlet header that guides condensate C W to the condensate desalination apparatus 4, and 2 is an inlet header for introducing condensate C W to the condensate desalination apparatus 4; An outlet header 3 of the water desalination device 4 is the condensate desalination device 4
Operation of the corresponding condensate desalination equipment 4 provided in each case,
An electric valve 5 for stopping the inlet header 1
6 is a differential pressure transmitter that detects the differential pressure between the inlet header 1 and the outlet header 2 and generates a differential pressure signal ΔP; 7 is the outlet header 2;
8 is a control device main body, and 9 is an operation/stop command from the control device main body 8 to each electric valve 3.
A signal line 10 for providing SS is the control device main body 8
11 is a signal line that gives a backwash command RW to each condensate desalination device 4, 11 is a signal line that gives an opening/closing command CDB to the bypass valve 5 from the control device main body 8, and 12 is a signal line from the flow rate transmitter 7. a signal line 1 that provides a flow rate signal CDF to the control device main body 8;
3 is a signal line for supplying a differential pressure signal ΔP from the differential pressure transmitter 6 to the control device main body 8; 14 is a runback line from the control device main body 8 to the recirculation pump (not shown) when the condensate desalination device 4 is abnormal; order
A signal line 15 for deriving PLR is a signal line for deriving a trip command LPC from the control device main body 8 to the low pressure condensate pump 400 when the condensate desalination apparatus 4 is abnormal.
以上述べた如き構成に於いて、制御装置本体８
は第３図のフローチヤートに示す如き論理判断に
基き復水脱塩装置４の運転状態を監視し、プラン
トの状況に応じた制御を行うものである。 In the configuration as described above, the control device main body 8
The system monitors the operating state of the condensate desalination apparatus 4 based on logical judgments as shown in the flowchart of FIG. 3, and performs control according to the plant situation.
次に、第３図のフローチヤートに従つて具体的
な動作について説明する。ちなみに、第３図のフ
ローチヤート中、復水脱塩装置はＣ／Ｄと略記す
る。 Next, specific operations will be explained according to the flowchart shown in FIG. Incidentally, in the flowchart of FIG. 3, the condensate desalination device is abbreviated as C/D.
先ず、プラントの状況、即ち流量信号CDFに
応じて復水脱塩装置４の最低運転台数Ｎを第４図
の関係図に従つて決定し(A)、復水脱塩装置４の運
転台数がそれに満たない時は、最低運転台数Ｎと
なる様に各電動弁３に対して運転命令SSを与え
る(B)、(C)。次に、復水脱塩装置４の目づまり状況
をチエツクするが、これは入口ヘツダ１と出口ヘ
ツダ２間の差圧信号ΔＰが規定値を越えていない
かどうかでチエツクする(D)。 First, the minimum number N of operating condensate desalination apparatuses 4 is determined according to the plant situation, that is, the flow rate signal CDF, according to the relationship diagram in Figure 4 (A), and the number of operating condensate desalination apparatuses 4 is determined. If this is not achieved, an operation command SS is given to each electric valve 3 so that the minimum number of operating units N is reached (B), (C). Next, the clogging status of the condensate desalination device 4 is checked by checking whether the differential pressure signal ΔP between the inlet header 1 and the outlet header 2 does not exceed a specified value (D).
このチエツクの結果、復水脱塩装置４に目づま
り等の異常がなかつた場合、目づまりの予防処置
として各復水脱塩装置４の通過積算流量等、例え
ば各復水脱塩装置４の差圧、運転時間等で制限を
越えたものがあるか否かの判定を行い(E)、制限を
越えたものがあれば待機中の復水脱塩装置の有無
の判定を行い(F)、もしこれがあれば待機中の復水
脱塩装置４を起動して、制限を越えた復水脱塩装
置４を停止した上で逆洗する(G)。これに対して、
待機中の復水脱塩装置４が無ければ、警報を発す
る(H)等の対応を行う。 As a result of this check, if there is no abnormality such as clogging in the condensate desalination device 4, as a preventive measure against clogging, the accumulated flow rate of each condensate desalination device 4, etc. Determine whether any pressure, operating time, etc. exceed the limits (E), and if any exceed the limits, determine whether there is a condensate desalination device on standby (F). If this occurs, the condensate desalination device 4 that is on standby is activated, and the condensate desalination device 4 that exceeds the limit is stopped and backwashed (G). On the contrary,
If there is no condensate desalination device 4 on standby, take measures such as issuing an alarm (H).
さて、(D)のルーチンに於いて差圧ΔＰの判定を
行つた時に、目づまりが見られる場合、待機中の
復水脱塩装置４があるか否かの判定を行い(I)、も
しこれがあれば待機中の復水脱塩装置４を起動し
て、通過積算流量等の一番多い復水脱塩装置４を
停止して逆洗する(J)。 Now, when clogging is found when determining the differential pressure ΔP in the routine (D), it is determined whether or not there is a condensate desalination device 4 on standby (I). If so, start up the condensate desalination device 4 that is on standby, stop the condensate desalination device 4 with the largest cumulative flow rate, etc., and perform backwashing (J).
しかる後に、再び入口、出口の各ヘツダ１，２
間の差圧信号ΔＰを規定値に突き合せ(K)、ここで
目づまりが見られなければ(E)のルーチンに入る。
これに対して、差圧信号ΔＰがなお規定値を起え
ていれば、もう１度待機中の復水脱塩装置４があ
るか否かの判定を行い(L)、もしこれがあれば、こ
れを起動し、警報を発生する（Ｍ）。この後、復
水脱塩装置４の最低運転台数Ｎが変化していない
かどうか等のチエツクを行うために(A)のルーチン
に戻る。 After that, the inlet and outlet headers 1 and 2 are connected again.
The differential pressure signal ΔP between them is checked against the specified value (K), and if no clogging is found, the routine goes to (E).
On the other hand, if the differential pressure signal ΔP still reaches the specified value, it is determined once again whether there is a condensate desalination device 4 on standby (L), and if there is, and generate an alarm (M). Thereafter, the process returns to routine (A) to check whether the minimum operating number N of condensate desalination apparatuses 4 has changed or not.
なお、(I)、(L)のルーチンで待機中の復水脱塩装
置４が無いと判定された場合、これは異常事態で
あるとして以下の処置を行なう。 Note that if it is determined in the routines (I) and (L) that there is no condensate desalination device 4 on standby, this is an abnormal situation and the following measures are taken.
先ず、制御装置本体８からのバイパス弁開閉指
令CDBによつてバイパス弁５を開く（Ｎ）。しか
る後に、差圧信号ΔＰを規定値と突き合せ
（Ｏ）、差圧が下がつていれば警報を発生して運転
員にその旨を知らせる（Ｓ）。 First, the bypass valve 5 is opened by the bypass valve opening/closing command CDB from the control device main body 8 (N). Thereafter, the differential pressure signal ΔP is compared with a specified value (O), and if the differential pressure has decreased, an alarm is generated to notify the operator (S).
これに対して、バイパス弁５を開いても差圧が
下がらなければ、これを下げるために再循環ポン
プをランバツクさせプラントの出力を落とすべく
PLR信号の出力を行う（Ｐ）。次に、LPC信号を
出力して（Ｑ）、低圧復水ポンプ４００を１台だ
け残して他を全てトリツプする。その結果、復水
脱塩装置４の通過流量が少なくなり、差圧も小さ
くなり、給水ポンプ６００、高圧復水ポンプ５０
０等のトリツプが避けられ、全給水喪失といつた
最悪事態を回避することが出来る。この様な状態
に陥つた場合は、警報を発生して（Ｒ）、運転員
に警告する。 On the other hand, if the differential pressure does not decrease even after opening the bypass valve 5, the recirculation pump is run back to lower the differential pressure and the output of the plant is reduced.
Outputs the PLR signal (P). Next, an LPC signal is output (Q) to trip all but one low pressure condensate pump 400. As a result, the flow rate passing through the condensate desalination device 4 decreases, the differential pressure also decreases, and the water supply pump 600, high pressure condensate pump 50
Trips such as zero can be avoided, and the worst case scenario, such as total loss of water supply, can be avoided. If such a situation occurs, an alarm will be generated (R) to alert the operator.
なお、上記の動作は、差圧発信器６からの差圧
信号ΔＰ、流量発信器７からの流量信号CDF
等、監視用信号に基いて制御装置本体８で判断を
行い、電動弁３に対する運転停止命令SS、復水
脱塩装置４に対する逆洗命令RW、バイパス弁５
に対する開閉信号CDB、再循環ポンプに対する
ランバツク命令PLR、低圧復水ポンプ４００に対
するトリツプ命令LPC等の制御信号を通じて実行
されるものである。 Note that the above operation is based on the differential pressure signal ΔP from the differential pressure transmitter 6 and the flow rate signal CDF from the flow rate transmitter 7.
etc., the control device body 8 makes a judgment based on the monitoring signal, and issues an operation stop command SS to the electric valve 3, a backwash command RW to the condensate desalination device 4, and a bypass valve 5.
This is executed through control signals such as an opening/closing signal CDB for the recirculation pump, a runback command PLR for the recirculation pump, and a trip command LPC for the low pressure condensate pump 400.
以上に述べた如く、本発明によれば復水脱塩装
置の運転管理を自動的にしかも高い信頼性のもと
に円滑に行うことを可能とし、また復水脱塩装置
に異常が発生した場合も、給水喪失等の最悪事態
を回避し得る復水脱塩装置の制御装置を得ること
が出来るものである。 As described above, according to the present invention, it is possible to smoothly manage the operation of the condensate desalination equipment automatically and with high reliability, and also to prevent abnormalities from occurring in the condensate desalination equipment. In this case, it is possible to obtain a control device for a condensate desalination device that can avoid the worst case such as loss of water supply.
第１図は一般的な沸騰水形原子力発電所の給水
復水系統図、第２図は本発明の一実施例に係る復
水脱塩装置の制御装置の概略構成図、第３図は第
２図の構成の動作を説明するフローチヤート、第
４図は復水脱塩装置の最低運転台数と流量の関係
図である。
３……電動弁、４……復水脱塩装置、５……バ
イパス弁、６……差圧発信器、７……流量発信
器、８……制御装置本体。
Fig. 1 is a feed water condensate system diagram of a general boiling water nuclear power plant, Fig. 2 is a schematic configuration diagram of a control device of a condensate desalination equipment according to an embodiment of the present invention, and Fig. 3 is a 2 is a flowchart explaining the operation of the configuration, and FIG. 4 is a diagram showing the relationship between the minimum operating number of condensate desalination equipment and the flow rate. 3... Electric valve, 4... Condensate desalination device, 5... Bypass valve, 6... Differential pressure transmitter, 7... Flow rate transmitter, 8... Control device main body.
Claims (1)
復水脱塩装置を制御する復水脱塩装置の制御装置
において、 前記複数台の復水脱塩装置の全体の復水の流れ
をバイパスするバイパス手段と、 前記複数台の復水脱塩装置の全体への入口圧力
と全体からの出口圧力との差圧を検出する差圧発
信器と、 前記複数台の復水脱塩装置の全体を通過する復
水の流量を検出する流量発信器と、 この流量発信器の出力にもとづいて前記復水脱
塩装置の運転台数を制御する手段と、 前記差圧発信器の出力が測定値を越えずかつ前
記複数台の復水脱塩装置に待機中のものがあると
きは運転中の復水脱塩装置に運転制限を越えたも
のがあるか否かを判別し、この制限を越えたもの
があるときは前記待機中の復水脱塩装置を運転さ
せて前記運転制限を越えた復水脱塩装置を逆洗
し、前記差圧発信器の出力が規定値以上でかつ前
記複数台の復水脱塩装置に待機中のものがあると
きはこの待機中の復水脱塩装置を運転させて運転
中の復水脱塩装置のうち所望のものを逆洗し、前
記差圧発信器の出力が規定値以上のでかつ前記複
数台の復水脱塩装置に待機中のものがないときは
前記バイパス手段による復水のバイパスを制御す
る手段とを備えることを特徴とする復水脱塩装置
の制御装置。[Scope of Claims] 1. A control device for a condensate desalination device that controls a plurality of condensate desalination devices inserted in a condensate system of a steam turbine, comprising: bypass means for bypassing the flow of water; a differential pressure transmitter for detecting the differential pressure between the inlet pressure to the whole of the plurality of condensate desalination apparatuses and the outlet pressure from the whole, and the plurality of condensate desalination apparatuses. a flow rate transmitter for detecting the flow rate of condensate passing through the entire desalination device; means for controlling the number of operating units of the condensate desalination device based on the output of the flow rate transmitter; and a differential pressure transmitter. If the output does not exceed the measured value and some of the plurality of condensate desalination devices are on standby, determine whether any of the condensate desalination devices in operation exceeds the operating limit; If any of the condensate desalination equipment exceeds this limit, the standby condensate desalination equipment is operated to backwash the condensate desalination equipment that exceeded the operation limit, and the output of the differential pressure transmitter exceeds the specified value. and when there is one on standby among the plurality of condensate desalination apparatuses, the standby condensate desalination apparatus is operated to backwash a desired condensate desalination apparatus among the operating condensate desalination apparatuses. , further comprising means for controlling bypass of condensate by the bypass means when the output of the differential pressure transmitter is equal to or higher than a specified value and there is no one on standby among the plurality of condensate desalination apparatuses. Control device for condensate desalination equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11994879A JPS5643594A (en) | 1979-09-18 | 1979-09-18 | Control device for recombined water desalting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11994879A JPS5643594A (en) | 1979-09-18 | 1979-09-18 | Control device for recombined water desalting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5643594A JPS5643594A (en) | 1981-04-22 |
| JPS6119000B2 true JPS6119000B2 (en) | 1986-05-15 |
Family
ID=14774136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11994879A Granted JPS5643594A (en) | 1979-09-18 | 1979-09-18 | Control device for recombined water desalting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5643594A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114434A (en) * | 1982-12-22 | 1984-07-02 | Hokkaido Electric Power Co Inc:The | Apparatus for sampling suspended solid substance |
| JPS59170796A (en) * | 1983-03-18 | 1984-09-27 | 株式会社東芝 | Condensed water clean-up device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52101394A (en) * | 1976-02-23 | 1977-08-25 | Hitachi Ltd | Coolant feeding system for reactor |
-
1979
- 1979-09-18 JP JP11994879A patent/JPS5643594A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52101394A (en) * | 1976-02-23 | 1977-08-25 | Hitachi Ltd | Coolant feeding system for reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5643594A (en) | 1981-04-22 |
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