JPS6234090B2 - - Google Patents
Info
- Publication number
- JPS6234090B2 JPS6234090B2 JP54072392A JP7239279A JPS6234090B2 JP S6234090 B2 JPS6234090 B2 JP S6234090B2 JP 54072392 A JP54072392 A JP 54072392A JP 7239279 A JP7239279 A JP 7239279A JP S6234090 B2 JPS6234090 B2 JP S6234090B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- piping
- valves
- sample
- sampling
- 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
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Description
【発明の詳細な説明】
本発明は高温の液体金属を採取するための採取
装置に係り、特に被採取試料の温度に変動がある
ものの採取に好適な液体金属採取装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sampling device for sampling high-temperature liquid metal, and more particularly to a liquid metal sampling device suitable for sampling samples whose temperature varies.
一般にナトリウム冷却高速増殖炉の冷却材であ
るナトリウムは通常、純度管理が要求され、定期
的に試料を採取し、化学分析がなされる。この試
料採取手段には、従来いくつかの手段がとられて
いるが、最も簡便な採取手段として、第１図に示
されるような貫流コイル型採取装置が多用されて
いる。 Sodium, which is generally the coolant for sodium-cooled fast breeder reactors, usually requires purity control, and samples are taken periodically for chemical analysis. Several methods have been used to collect samples in the past, but as the simplest sample collecting device, a flow-through coil type sampling device as shown in FIG. 1 is often used.
この第１図に示される採取装置１は母管Ｏの定
位置O1，O2に接続された試料採取回路を有して
いる。 The sampling device 1 shown in FIG. 1 has a sample sampling circuit connected to fixed positions O 1 and O 2 of the main tube O.
前記試料採取回路はポンプ２、往き側の配管
３、同往き側の弁４、試料採取用コイル５、帰り
側の配管７、同帰り側の弁８、配管一弁類予熱用
の電気ヒータ９、配管一弁類の温度計測用熱伝対
１０、温度設定器１１、比較演算器１２および接
触スイツチ１３を備えて構成され、前記試料採取
用コイル５は継手６を介して試料採取回路の往き
側と帰り側の配管３，７に接続されている。 The sample collection circuit includes a pump 2, a pipe 3 on the outgoing side, a valve 4 on the outgoing side, a coil 5 for sample collection, a pipe 7 on the return side, a valve 8 on the return side, and an electric heater 9 for preheating the pipes and valves. , a thermocouple 10 for measuring the temperature of piping and valves, a temperature setting device 11, a comparator 12, and a contact switch 13. It is connected to the pipes 3 and 7 on the side and return side.
そして試料採取に先立つて電気ヒータ９により
配管一弁類が予熱される。通常その予熱温度が温
度計測用熱電対１０で計測され、比較演算器１２
で温度設定器１１に設定された設定値と前記温度
計測用熱電対１０で計測された温度と比較され、
前記比較演算器１２からの信号により接触スイツ
チ１３をON、OFFさせることによつて液体金属
がナトリウムの場合には200〜300℃に予熱され
る。 Prior to sample collection, the pipes and valves are preheated by the electric heater 9. Usually, the preheating temperature is measured by a temperature measuring thermocouple 10, and a comparison calculator 12
The set value set in the temperature setting device 11 is compared with the temperature measured by the temperature measuring thermocouple 10,
When the liquid metal is sodium, it is preheated to 200 to 300°C by turning the contact switch 13 ON and OFF in response to a signal from the comparator 12.
ついで母管Ｏからポンプ２により試料が吸入さ
れ、吸入された試料は吸入当初は試料採取回路の
往き側、試料採取用コイル５、試料採取回路の帰
り側を通つて母管Ｏに戻される。 Next, a sample is sucked from the main tube O by the pump 2, and at the beginning of suction, the sample is returned to the main tube O through the outgoing side of the sample sampling circuit, the sample sampling coil 5, and the return side of the sample sampling circuit.
つぎに試料採取時にはポンプ１が停止され、弁
４，８が閉められ、電気ヒータ９が切られる。こ
の状態で保持されると、試料採取装置１の表面か
らの放熱のため試料採取回路内の試料温度が凝固
点以下に低下し、凝固する。凝固した時点で試料
採取用コイル５を継手６から切り離し、前記試料
採取用コイル５を通じて試料を取り出す。 Next, when sampling, the pump 1 is stopped, the valves 4 and 8 are closed, and the electric heater 9 is turned off. When held in this state, the temperature of the sample in the sample collection circuit decreases below the freezing point due to heat radiation from the surface of the sample collection device 1, and the sample solidifies. At the time of solidification, the sample collection coil 5 is separated from the joint 6, and the sample is taken out through the sample collection coil 5.
前述採取装置で問題となるのは、従来の採取装
置が予熱を目的とした加熱装置しか持つていない
ことにある。すなわち一度採取操作をすると再び
配管一弁類を予熱温度まで昇温させた後、母管Ｏ
から液体金属が導入される。ところが母管Ｏも予
熱温度になつていれば問題はないが、ナトリウム
の場合、200〜300℃予熱温度よりも高い温度、す
なわち普通のナトリウム冷却高速増殖炉で500℃
のナトリウムが試料採取回路内に導入されると、
配管一弁類に温度差200℃の熱衝撃がかかり、強
度上大きな問題となる。 The problem with the above-mentioned sampling device is that the conventional sampling device only has a heating device for preheating. In other words, once the sampling operation is performed, the temperature of the piping and valves is raised to the preheating temperature, and then the main pipe O
Liquid metal is introduced from However, there is no problem if the main tube O is also at the preheating temperature, but in the case of sodium, the temperature is 200 to 300℃ higher than the preheating temperature, that is, 500℃ in a normal sodium-cooled fast breeder reactor.
of sodium is introduced into the sampling circuit,
Thermal shock with a temperature difference of 200°C is applied to the piping and valves, which poses a major problem in terms of strength.
これを防ぐ方法としては、弁４，８を徐々に開
いて行く方法もとられているが、信頼性、再現性
がないため、原子力プラントでは採用することが
できない。このような大きな熱衝撃は、通常の配
管系では２〜３回で強度評価上、使用不能となる
程である。 One way to prevent this is to gradually open the valves 4 and 8, but this method cannot be used in nuclear power plants because it is not reliable or reproducible. Such a large thermal shock is such that in a normal piping system, it becomes unusable in terms of strength evaluation after 2 to 3 times.
本発明の目的は加熱装置の温度制御範囲を広げ
試料採取回路の配管一弁類の熱衝撃を緩和しうる
液体金属採取装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid metal sampling device that can widen the temperature control range of the heating device and alleviate thermal shock of piping and valves in a sample sampling circuit.
そして本発明は母管内の液体金属温度と試料採
取回路の配管一弁類の温度との温度差を設定値と
比較する温度差設定器と、該温度差設定器からの
温度偏差是正信号に基づき試料採取回路配管一弁
類の加熱装置の出力を制御する自動出力調整器と
の協働により、試料採取回路の配管一弁類予熱用
の前記加熱装置を設定された温度範囲で制御する
ようにしたことによつて前記加熱装置の温度制御
範囲を拡大でき、さらに試料採取回路の配管一弁
類の熱衝撃を緩和できたものである。 The present invention is based on a temperature difference setting device that compares the temperature difference between the liquid metal temperature in the main pipe and the temperature of the piping and valves of the sampling circuit with a set value, and a temperature deviation correction signal from the temperature difference setting device. By cooperating with an automatic output regulator that controls the output of the heating device for the piping and valves of the sampling circuit, the heating device for preheating the piping and valves of the sampling circuit is controlled within a set temperature range. As a result, the temperature control range of the heating device can be expanded, and the thermal shock of the pipes and valves of the sampling circuit can be alleviated.
以下本発明を図面に基づいて説明する。 The present invention will be explained below based on the drawings.
第２図は本発明の一実施例を示すもので、採取
装置２１は母管Ｏの定位置O1，O2に接続された
試料採取回路と、該試料採取回路の配管一弁類の
予熱用の加熱装置２９の制御部とを備えている。 FIG. 2 shows an embodiment of the present invention, in which a sampling device 21 includes a sample sampling circuit connected to fixed positions O 1 and O 2 of the main pipe O, and preheating of piping and valves of the sample sampling circuit. and a control unit for the heating device 29 for use.
前記試料採取回路はポンプ２２、往き側の配管
２３、同往き側の弁２４、試料採取用コイル２
５、帰り側の配管２７、同帰り側の弁２８とを有
して構成されており、前記試料採取用コイル２５
は継手２６を介して前記往き側、帰り側の配管２
３，２７に接続されている。 The sample sampling circuit includes a pump 22, a pipe 23 on the outgoing side, a valve 24 on the outgoing side, and a sample sampling coil 2.
5, the pipe 27 on the return side and the valve 28 on the return side, and the sample collection coil 25
connects the outgoing and return side piping 2 via the joint 26.
3, 27.
前記往き側、帰り側の配管２３，２７および弁
２４，２８は加熱装置２９で予熱されるようにな
つており、加熱装置２９には図示実施例では電気
ヒータが使用されている。 The outgoing and returning pipes 23, 27 and valves 24, 28 are preheated by a heating device 29, and in the illustrated embodiment, an electric heater is used as the heating device 29.
前記加熱装置２９の制御部は母管Ｏ内の液体金
属温度計測用熱伝対３０、試料採取回路の配管一
弁類温度計測用熱伝対３１、温度差演算器３２、
温度差設定器３３、比較演算器３４、自動出力調
整器３５とを備えている。 The control unit of the heating device 29 includes a thermocouple 30 for measuring the temperature of liquid metal in the main pipe O, a thermocouple 31 for measuring the temperature of the pipes and valves of the sample collection circuit, a temperature difference calculator 32,
It is equipped with a temperature difference setting device 33, a comparison calculator 34, and an automatic output adjuster 35.
前記温度差演算器３２では液体金属温度計測用
熱伝対３０で計測された液体金属温度と試料採取
回路の配管一弁類温度計測用熱伝対３１で計測さ
れた配管一弁類温度とが演算され、求められた温
度差は比較演算器３４に入力される。 The temperature difference calculator 32 calculates the liquid metal temperature measured by the liquid metal temperature measuring thermocouple 30 and the piping-to-valve temperature measured by the piping-to-valve temperature measuring thermocouple 31 of the sampling circuit. The calculated and determined temperature difference is input to the comparison calculator 34.
前記温度差設定器３３には母管Ｏ内の液体温度
と試料採取回路の配管一弁類温度との温度差によ
る熱衝撃で前記配管一弁類が破損されない安全な
温度範囲内から選択された設定値が予め入力され
ており、該設定値は比較演算器３４に入力され
る。 The temperature difference setting device 33 has a temperature selected within a safe temperature range in which the piping and valves will not be damaged due to thermal shock caused by the temperature difference between the liquid temperature in the main pipe O and the temperature of the piping and valves of the sampling circuit. A set value is input in advance, and the set value is input to the comparison calculator 34.
前記比較演算器３４では母管Ｏ内の液体金属温
度と前記試料採取回路の配管一弁類温度の温度差
と、設定値とが比較され、その演算値が設定値と
の温度偏差を是正するための信号として自動出力
調整器３５に入力される。 The comparison calculator 34 compares the temperature difference between the liquid metal temperature in the main pipe O and the temperature of the piping and valve of the sample sampling circuit with a set value, and the calculated value corrects the temperature deviation from the set value. This signal is input to the automatic output regulator 35 as a signal for this purpose.
前記自動出力調整器３５には試料採取回路の配
管一弁類の加熱装置２９が接続され、この自動出
力調整器３５により加熱装置２９の出力が前記温
度差設定器３３に設定された設定値内に納まるよ
うに、すなわち温度差による熱衝撃によつて試料
採取回路の配管一弁類が破損されない温度範囲に
あるように調整されるように構成されている。 A heating device 29 for the pipes and valves of the sampling circuit is connected to the automatic output regulator 35, and the automatic output regulator 35 keeps the output of the heating device 29 within the set value set in the temperature difference setting device 33. In other words, the temperature is adjusted within a temperature range in which the piping and valves of the sampling circuit are not damaged by thermal shock caused by the temperature difference.
そして前記加熱装置２９により試料採取回路の
配管一弁類を予熱し、母管Ｏから試料採取回路に
吸入される試料の温度に、試料採取回路の配管一
弁類の温度を近接させ、それを確認したうえで、
ポンプ２２を起動させ、母管Ｏから試料採取回路
に試料を導入するものである。 Then, the heating device 29 preheats the pipes and valves of the sample collection circuit, bringing the temperature of the pipes and valves of the sample collection circuit close to the temperature of the sample sucked into the sample collection circuit from the main pipe O, and After checking,
The pump 22 is started and a sample is introduced from the main pipe O into the sample collection circuit.
前記試料採取回路から試料を取り出す場合に
は、常法により加熱装置２９をOFFにし、弁２
４，２８を閉め、試料採取回路の試料を放熱さ
せ、該試料が凝固点以下の温度に降下した時点で
継手２６から試料採取用コイル２５を切り離して
行ない、新たな試料採取用コイルを取り付け、次
の試料採取に備えるものである。 When taking out a sample from the sample collection circuit, turn off the heating device 29 and close the valve 2 in the usual manner.
4 and 28, the sample in the sample collection circuit is allowed to radiate heat, and when the temperature of the sample drops below the freezing point, the sample collection coil 25 is disconnected from the joint 26, a new sample collection coil is attached, and the next step is performed. This is in preparation for sample collection.
なお本発明はナトリウムだけに限らず、液体金
属一般に適用できること勿論である。 Note that the present invention is of course applicable not only to sodium but also to liquid metals in general.
本発明は以上説明した構成、作用のもので、母
管内の液体金属温度と試料採取回路の配管一弁類
温度との温度差と比較すべき設定値を、前記温度
差による熱衝撃で前記配管一弁類が破損されない
安全は範囲内で自由に設定でき、かつかかる設定
値と、実際に計測され、演算された温度差との温
度偏差是正信号に基づいて加熱装置を確実に制御
できるので、加熱装置の温度制御範囲を拡大で
き、従つて装置全体の用途を拡大できる効果を有
する外、試料採取回路の配管一弁類の熱衝撃によ
る破損を防止しうるので、装置全体の寿命を大幅
に伸長できる効果もあり、信頼性の向上に伴い原
子力プラントにも適用できるものである。 The present invention has the configuration and operation described above, and the set value to be compared with the temperature difference between the liquid metal temperature in the main pipe and the temperature of the piping and valve of the sampling circuit is determined by thermal shock caused by the temperature difference in the piping. The safety of preventing valves from being damaged can be set freely within a range, and the heating device can be reliably controlled based on the temperature deviation correction signal between the set value and the actually measured and calculated temperature difference. This not only has the effect of expanding the temperature control range of the heating device and therefore expanding the uses of the entire device, but also prevents damage to the piping and valves of the sampling circuit due to thermal shock, significantly extending the life of the entire device. It also has the effect of being able to be extended, and with improved reliability, it can also be applied to nuclear power plants.
第１図は従来装置の説明図、第２図は本発明装
置の説明図である。
２１…採取装置全体、２２…ポンプ、２３…試
料採取回路の往き側の配管、２４…同弁、２５…
試料採取用コイル、２６…継手、２７…試料採取
回路の帰り側の配管、２８…同弁、２９…加熱装
置、３０…母管内の液体金属計測用熱伝対、３１
…試料採取回路の配管一弁類温度計測用熱伝対、
３２…温度差演算器、３３…温度差設定器、３４
…比較演算器、３５…自動出力調整器。
FIG. 1 is an explanatory diagram of a conventional device, and FIG. 2 is an explanatory diagram of the device of the present invention. 21...Entire collection device, 22...Pump, 23...Piping on the outgoing side of the sample collection circuit, 24...Valve, 25...
Coil for sample collection, 26... Joint, 27... Piping on the return side of the sample collection circuit, 28... Valve, 29... Heating device, 30... Thermocouple for measuring liquid metal in the main pipe, 31
...Thermocouple for measuring temperature of piping and valves in sample collection circuit,
32...Temperature difference calculator, 33...Temperature difference setting device, 34
...Comparison calculator, 35...Automatic output adjuster.
Claims (1)
一弁類温度との温度差を、設定値と比較する温度
差設定器と、該温度差設定器からの温度偏差是正
信号に基づき試料採取回路の配管一弁類の加熱装
置の出力を制御する自動出力調整器とを備えてい
ることを特徴とする液体金属採取装置。1. A temperature difference setting device that compares the temperature difference between the liquid metal temperature in the main pipe and the piping and valve temperature of the sampling circuit with a set value, and a sampling circuit based on the temperature deviation correction signal from the temperature difference setting device. An automatic output regulator for controlling the output of a heating device for piping and valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7239279A JPS56240A (en) | 1979-06-11 | 1979-06-11 | Device for picking up liquid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7239279A JPS56240A (en) | 1979-06-11 | 1979-06-11 | Device for picking up liquid metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56240A JPS56240A (en) | 1981-01-06 |
| JPS6234090B2 true JPS6234090B2 (en) | 1987-07-24 |
Family
ID=13487950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7239279A Granted JPS56240A (en) | 1979-06-11 | 1979-06-11 | Device for picking up liquid metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56240A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297018A (en) * | 2014-11-07 | 2015-01-21 | 成都思达高科软件有限公司 | Hot liquid sampler with high heat preservation effect |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58221741A (en) * | 1982-05-21 | 1983-12-23 | ザ・デイ−・エル・オ−ルド・コンパニ− | Trim strip for automobile body and manufacture of said trim strip |
| US4884068A (en) * | 1986-09-12 | 1989-11-28 | Matheny Stephen E | Multiple display system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249355A (en) * | 1975-09-25 | 1977-04-20 | Tokyo Juki Industrial Co Ltd | Device for selecting needle in hand knitting machine |
| JPS538987U (en) * | 1976-07-07 | 1978-01-25 |
-
1979
- 1979-06-11 JP JP7239279A patent/JPS56240A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297018A (en) * | 2014-11-07 | 2015-01-21 | 成都思达高科软件有限公司 | Hot liquid sampler with high heat preservation effect |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56240A (en) | 1981-01-06 |
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