JPS6331760B2 - - Google Patents
Info
- Publication number
- JPS6331760B2 JPS6331760B2 JP8272582A JP8272582A JPS6331760B2 JP S6331760 B2 JPS6331760 B2 JP S6331760B2 JP 8272582 A JP8272582 A JP 8272582A JP 8272582 A JP8272582 A JP 8272582A JP S6331760 B2 JPS6331760 B2 JP S6331760B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pump
- water supply
- temperature
- drainage
- 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
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【発明の詳細な説明】
本発明は放射性廃棄物固化体用の高温高圧浸出
試験装置に関する。さらに詳しくは、高温高圧下
において地下水の流動を模擬した、放射性廃棄物
固化体浸出試験用の浸出液の流動状態が温度、圧
力の変動を起こすことなく得られ、かつ広範囲な
温度、圧力条件が得られる流水式高温高圧浸出試
験装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high temperature and high pressure leaching test device for solidified radioactive waste. More specifically, the flow state of the leachate for the radioactive waste solidified material leaching test, which simulates the flow of groundwater under high temperature and high pressure, can be obtained without fluctuations in temperature and pressure, and it is possible to obtain a wide range of temperature and pressure conditions. This article relates to a running water type high temperature and high pressure leaching test device.
従来から実施されている放射性廃棄物固化体の
浸出試験方法はJIS法（あるいはIAEA法）とソ
ツクスレー法に大別される。JIS法は浸出液が静
的な条件下において、該浸出液に浸漬させた放射
性廃棄物固化体の浸出挙動を調べる方法であり、
一方ソツクスレー法は浸出液を加熱し、発生した
水蒸気を冷却することによつて得られる蒸留水を
放射性廃棄物と接触させる一連の工程をサイフオ
ンの原理を用いてくり返し行う方法である。 Conventionally used leaching test methods for solidified radioactive waste are roughly divided into the JIS method (or IAEA method) and the Soxhlet method. The JIS method is a method for investigating the leaching behavior of solidified radioactive waste immersed in a leachate under static conditions.
On the other hand, the Soxhlet method uses the siphon principle to repeat a series of steps in which distilled water obtained by heating leachate and cooling the generated steam is brought into contact with radioactive waste.
ところで、放射性廃棄物固化体が実際に処分さ
れる環境は地圧に由来する静水圧下で地下水が流
動しているものと考えることができる。このよう
な処分環境とこれまで行なわれてきた前記方法の
試験条件を比較すると、JIS法においては地下水
の流動に対応した浸出液の流動が得られない欠点
があり、またソツクスレー法においては浸出液が
蒸留水に限定されるため、浸出性を支配する重要
因子である浸出液組成に関する試験ができないこ
とおよび浸出液の流動は単なる系内における循環
にすぎないなどの欠点があつて、基本的に処分環
境を模擬したモデルとは言い難い。近年、このよ
うな反省から、実際の地下水を用い、一定の流量
を流した条件下での浸出試験が検討されている
が、圧力は常圧であり、温度も100℃以下に限定
されたものである。 By the way, the environment in which solidified radioactive waste is actually disposed of can be considered to be one in which underground water flows under hydrostatic pressure derived from earth pressure. Comparing this kind of disposal environment with the test conditions of the above-mentioned methods that have been carried out so far, it is found that the JIS method has the disadvantage that the leachate does not flow in a way that corresponds to the flow of groundwater, and the Soxhlet method has the disadvantage that the leachate is not distilled. Since it is limited to water, it has drawbacks such as not being able to test the leachate composition, which is an important factor governing leachability, and the flow of leachate being merely a circulation within the system.Basically, it simulates the disposal environment. It is hard to say that it is a model that has achieved this. In recent years, based on this review, leaching tests using actual groundwater under conditions of a constant flow rate have been considered, but the pressure is normal pressure and the temperature is limited to 100 degrees Celsius or less. It is.
本発明は上記の従来法による限定された試験条
件ではなく、実際の処分環境に近い試験条件のも
とで操作できる流水式高温高圧浸出試験装置を提
供するもので、その要旨とするところは、温度、
圧力制御装置を有しかつサンプルを収納する圧力
容器と該圧力容器に高圧バルブ、ポンプを介して
接続する浸出液タンクおよび連動して作動する耐
圧性給水ポンプと耐圧性排出ポンプならびに該ポ
ンプの駆動装置より構成され、かつ該耐圧性給水
ポンプと該耐圧性排水ポンプを該圧力容器にそれ
ぞれ接続せしめたことを特徴とする流水式高温高
圧浸出試験装置、にある。 The present invention provides a running water type high-temperature, high-pressure leaching test device that can be operated under test conditions close to the actual disposal environment, rather than the limited test conditions of the conventional method described above. temperature,
A pressure vessel having a pressure control device and containing a sample, a leachate tank connected to the pressure vessel via a high-pressure valve and a pump, a pressure-resistant water supply pump and a pressure-resistant discharge pump that operate in conjunction, and a drive device for the pump. 1. A flowing water type high temperature, high pressure leaching test device comprising: the pressure resistant water supply pump and the pressure resistant drain pump are respectively connected to the pressure vessel.
すなわち、本発明装置は適当な温度、圧力制御
装置を有する圧力容器の圧力媒体を圧縮水とし、
この圧力容器に連動し作動する少なくとも一対の
耐圧性ポンプをそれぞれ接続させることにより、
該圧力容器と該両ポンプが同一圧力になり、かつ
該ポンプの駆動装置により該圧力容器内に注入す
る液量と排出する液量が常に同量になるため、該
圧力容器内に圧力変動を生じることなく、浸出液
の流動が得られるようにしたものである。 That is, the device of the present invention uses compressed water as the pressure medium of a pressure vessel having an appropriate temperature and pressure control device,
By connecting at least a pair of pressure-resistant pumps that operate in conjunction with this pressure vessel,
The pressure vessel and both pumps have the same pressure, and the amount of liquid injected into the pressure vessel and the amount of liquid discharged by the drive device of the pump are always the same, so no pressure fluctuations occur in the pressure vessel. This allows the leachate to flow without causing any problems.
次に、本発明を実施例によつてさらに具体的に
説明するが、本発明はその要旨を越えない限り以
下の実施例に限定されるものではない。 Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to the following Examples unless the gist thereof is exceeded.
図面は本発明の１実施例の装置系統図である。 The drawing is a system diagram of an apparatus according to an embodiment of the present invention.
図において、加熱装置および温度制御にかかわ
る装置は省略し、図面に示す各装置も簡略化して
いる。また、本実施例では給排水ポンプの駆動装
置として油圧シリンダーを用い、給水量と排水量
を等しくするため油圧シリンダーと給排水ポンプ
を同軸としかつ給水用ポンプと排水用ポンプは同
一のものを用いた。 In the figure, a heating device and a device related to temperature control are omitted, and each device shown in the drawing is also simplified. Further, in this example, a hydraulic cylinder was used as the drive device for the water supply and drainage pump, and in order to equalize the amount of water supply and drainage, the hydraulic cylinder and the water supply and drainage pump were coaxial, and the water supply pump and the drainage pump were the same.
このような図において、まず、V1を開いて、
ポンプ１０により浸出液タンク９から浸出液を圧
力容器１に注入し、続いてV2，V3を開いて給排
水ポンプ５，６に満した時点で、V1，V2および
V3を閉じ、次いで保安弁３を所定圧力に設定し
た後、V4を開き、圧力容器１の加熱を開始する。 In such a diagram, first open V 1 and
The leachate is injected from the leachate tank 9 into the pressure vessel 1 by the pump 10, and then V 2 and V 3 are opened to fill the water supply and drainage pumps 5 and 6, and V 1 , V 2 and
After closing V 3 and setting the safety valve 3 to a predetermined pressure, V 4 is opened and heating of the pressure vessel 1 is started.
設定温度に至るまでの温度上昇に伴い、系内の
圧力は上昇するが、所定の圧力を越えた場合は、
V4，電磁弁２および保圧弁３を通じて系内の圧
縮水は系外に放出される。これにより、系内の圧
力は下がるが、所定の圧力までに下がつた時点
で、電磁弁２が作動し、放出が止まる。設定温度
において所定の圧力が得られない場合には高圧ポ
ンプ４を用いて必要な圧力を得ることができる。
このようにして、所定の温度および圧力が得られ
たならば、V4を閉じ、油圧シリンダ７を作動さ
せ、浸出液の流動を開始する。 As the temperature rises to the set temperature, the pressure in the system increases, but if it exceeds the specified pressure,
Compressed water in the system is discharged to the outside of the system through V 4 , the solenoid valve 2 and the pressure holding valve 3. This causes the pressure in the system to drop, but when the pressure drops to a predetermined level, the solenoid valve 2 is activated and the discharge is stopped. If the predetermined pressure cannot be obtained at the set temperature, the high pressure pump 4 can be used to obtain the required pressure.
In this way, once the predetermined temperature and pressure are obtained, V 4 is closed, the hydraulic cylinder 7 is activated, and the flow of the leachate is started.
給水と排水を別々に行つた場合、流水量の制御
は保圧弁３や電磁弁２を用い、給排水による圧力
容器１内の圧力変動を検知することによりなされ
るため、その間の圧力変動（設定圧力に対しおよ
そ±５％）に応じた流水量の変動（圧力容器の内
容積×圧力変動幅）が生じるおそれがあり、流水
量が小さい状態での浸出試験は実施不可能であ
る。 When water supply and drainage are performed separately, the flow rate is controlled by using the pressure holding valve 3 and the solenoid valve 2 to detect pressure fluctuations in the pressure vessel 1 due to water supply and drainage. (approx.
これに対して、本発明装置は一回の試験に必要
な給排水量は油圧シリンダ７の移動速度および給
排水ポンプ５，６の容積等を適当に組み合わせる
ことによつて、目的に応じた選択が可能であり、
また、試験期間が長期に亘り、給排水量が多い場
合は逆止弁１３をV2と接続させ、給排水ポンプ
５，６と圧力容器１との間に各々バルブV5，V6
を設けるシステムを組めば、V3から圧縮水を系
外に排出できるため給排水ポンプの容積に制限さ
れることなく長期の試験、すなわち給排水量が大
きな試験が可能である。さらに給排水速度が大き
い場合は予熱、冷却等の処理を付加することによ
り、圧力容器１内の温度変化を小さくすることが
できる。 In contrast, with the device of the present invention, the amount of water supply and drainage required for one test can be selected according to the purpose by appropriately combining the moving speed of the hydraulic cylinder 7 and the volumes of the water supply and drainage pumps 5 and 6. and
In addition, if the test period is long and the amount of water supply and drainage is large, the check valve 13 is connected to V2 , and valves V5 and V6 are connected between the water supply and drainage pumps 5 and 6 and the pressure vessel 1, respectively.
By constructing a system that provides compressed water from the V 3 , it is possible to discharge compressed water from the system, allowing long-term tests, that is, tests with a large amount of water supply and drainage, without being limited by the volume of the water supply and drainage pump. Furthermore, when the water supply/drainage speed is high, temperature changes within the pressure vessel 1 can be reduced by adding processing such as preheating and cooling.
一方、本発明装置では圧力容器１と給排水ポン
プ５，６は同一系にあるため、常に同一圧力に保
持されており、浸出液の流動による試験条件への
悪影響はほとんどなく、常に安定した状態での試
験が可能である。現在、放射性廃棄物固化体の浸
出試験条件としては最高温度300℃、最高圧力300
気圧が必要であるが、これらの浸出試験条件は本
発明装置により既存のバルブや１〜９の上記各装
置を用いることによつて充分達成することができ
ると同時に常温から300℃の範囲におけるいずれ
の温度においても、大気圧から300気圧までの任
意の圧力を選ぶことができ、それによつて温度、
圧力、地下水の流速について処分環境条件を含む
広範囲の条件下での浸出試験が可能となつた。 On the other hand, in the device of the present invention, the pressure vessel 1 and the water supply and drainage pumps 5 and 6 are in the same system, so they are always maintained at the same pressure, and the flow of leachate has almost no adverse effect on the test conditions, and the test conditions are always stable. Testing is possible. Currently, the leaching test conditions for solidified radioactive waste are a maximum temperature of 300℃ and a maximum pressure of 300℃.
Atmospheric pressure is required, but these leaching test conditions can be fully achieved by the device of the present invention using existing valves and each of the devices 1 to 9 above. Any pressure from atmospheric pressure to 300 atm can be selected even at a temperature of
It has become possible to conduct leaching tests under a wide range of pressure and groundwater flow rate conditions, including disposal environmental conditions.
図面は本発明の１実施例の装置系統図である。
１……圧力容器、２……電磁弁、３……保圧
弁、４……高圧ポンプ、５……耐圧性給水ポン
プ、６……耐圧性排水ポンプ、７……油圧シリン
ダ、８……油圧シリンダ制御装置、９……浸出液
タンク、１０……ポンプ、１１……サンプル、１
２……安全弁、１３……逆止弁、V1〜V6……高
圧バルブ。
The drawing is a system diagram of an apparatus according to an embodiment of the present invention. 1... Pressure vessel, 2... Solenoid valve, 3... Pressure holding valve, 4... High pressure pump, 5... Pressure resistant water supply pump, 6... Pressure resistant drainage pump, 7... Hydraulic cylinder, 8... Hydraulic pressure Cylinder control device, 9...Leachate tank, 10...Pump, 11...Sample, 1
2...Safety valve, 13...Check valve, V1 to V6 ...High pressure valve.
Claims (1)
納する圧力容器と該圧力容器に高圧バルブ、ポン
プを介して接続する浸水液タンクおよび連動して
作動する耐圧性給水ポンプと耐圧性排水ポンプな
らびに該ポンプの駆動装置より構成され、かつ該
耐圧性給水ポンプと該耐圧性排水ポンプを該圧力
容器にそれぞれ接続せしめたことを特徴とする流
水式高温高圧浸出試験装置。1 A pressure vessel having a temperature and pressure control device and containing a sample, a submerged liquid tank connected to the pressure vessel via a high-pressure valve and a pump, a pressure-resistant water supply pump and a pressure-resistant drainage pump that operate in conjunction with each other, and 1. A flowing water type high temperature and high pressure leaching test device comprising a pump driving device, and characterized in that the pressure resistant water supply pump and the pressure resistant drainage pump are respectively connected to the pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8272582A JPS58200199A (en) | 1982-05-17 | 1982-05-17 | High temperature high pressure leaching test device of running water type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8272582A JPS58200199A (en) | 1982-05-17 | 1982-05-17 | High temperature high pressure leaching test device of running water type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58200199A JPS58200199A (en) | 1983-11-21 |
| JPS6331760B2 true JPS6331760B2 (en) | 1988-06-27 |
Family
ID=13782386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8272582A Granted JPS58200199A (en) | 1982-05-17 | 1982-05-17 | High temperature high pressure leaching test device of running water type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58200199A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3805581B2 (en) * | 1999-10-06 | 2006-08-02 | 株式会社神戸製鋼所 | Real underground environment simulator |
| JP2006053151A (en) * | 2005-08-12 | 2006-02-23 | Kobe Steel Ltd | Practical underground environment simulator |
| JP5353018B2 (en) * | 2008-01-29 | 2013-11-27 | 株式会社Ｉｈｉ | High pressure test method and apparatus |
| JP5158024B2 (en) * | 2009-06-11 | 2013-03-06 | 株式会社Ｉｈｉ | Subsurface simulation test method and apparatus |
| CN102262020B (en) * | 2011-04-29 | 2013-04-17 | 西安交通大学 | Machine for testing tensile stress under high temperature & high pressure environments |
-
1982
- 1982-05-17 JP JP8272582A patent/JPS58200199A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58200199A (en) | 1983-11-21 |
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