CN201689068U - Experimental device for thermal conductivity of high-level waste disposing cushion material - Google Patents
Experimental device for thermal conductivity of high-level waste disposing cushion material Download PDFInfo
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- CN201689068U CN201689068U CN2010201847012U CN201020184701U CN201689068U CN 201689068 U CN201689068 U CN 201689068U CN 2010201847012 U CN2010201847012 U CN 2010201847012U CN 201020184701 U CN201020184701 U CN 201020184701U CN 201689068 U CN201689068 U CN 201689068U
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Abstract
An experimental device for thermal conductivity of high-level waste disposing cushion material adopts the structure that a heat insulating material is filled between the cylinder walls of a double-layer steel cylinder; a heating cylinder is vertically inserted in the middle of the double-layer steel cylinder; two heating rods are inserted in the heating cylinder; a probe thermocouple is arranged on one side of the heating rods; aluminium powder is filled in the heating cylinder; and a plurality of layers of bentonite in lump of which the thermal conductivity is to be measured are filled in the cavity between the heating cylinder and the double-layer steel cylinder. The utility model has the advantages that firstly, a thermal conduction device simulates the multilayer cylindrical conceptual model of a high-level waste repository project site; secondly, the equipment is simple and labor-saving in operation; thirdly, an automatic storage system ensures the stability and accuracy of data results; and fourthly, the thermal conductivity of other various clay and rock-soil can be measured.
Description
Technical field
The utility model relates to a kind of experimental provision, relates in particular to a kind of experimental provision of high-level radioactive-waste disposal padded coaming thermal conductivity.
Background technology
Along with the development of nuclear science and the application of nuclear technology, the high-level radioactive waste that nuclear industry produced (abbreviation high-level waste) handling problems is urgent day by day.For nuclear industry and human, natural harmonious development, a lot of countries plan takes the dark geologic disposal concept model of multibarrier to reduce the harmfulness of high-level waste to greatest extent.Because bentonitic clay has good thermal stability, nucleic adsorbability and extremely low performances such as perviousness, in this model, many countries select for use bentonitic clay to make the base material of high-level waste geology treatment padded coaming, high-level waste is radioactive intensity height, long half time not only, emit a large amount of decay heats simultaneously, these heats are to influence high-level waste to dispose the storehouse, particularly the main factor of artificial barrier stability and security.Decay heat will cause disposing warehouse temperature and raise, and it is generally acknowledged to reach as high as 100 ℃, may influence padded coaming structure and changes of properties like this, thus must be to padded coaming, and promptly bentonitic clay carries out thermal conduction characteristic research.Domestic research to the bentonitic clay thermal behavior only limits to the mensuration of heat conduction parameter more, and a lot of country has begun the site test research that high-level waste is disposed the vast scale size.Bentonitic clay compacting block original position thermal behavior situation of change on the spot promotes that domestic high-level waste intervention level is in line with international standards when studying the dark geological disposal of high-level waste, has designed and made the bentonitic clay heat transfer equipment of this cover simulation engineering site.
Summary of the invention
The purpose of this utility model has been to provide a kind of experimental provision of high-level radioactive-waste disposal padded coaming thermal conductivity, this device can be used for the scientific research of the heat-conductive characteristic of unselected clay, ground, and be used for the heat conduction education experiment, because it has the characteristics of the actual engineering site of simulation, help to expand student's space of thinking, excite innovation enthusiasm, fully excavate design potential, scientific research and teaching are combined closely.
The utility model is achieved like this, it comprises double-deck steel cylinder, heat preserving and insulating material, cartridge heater, heating rod, the probe thermopair, bentonitic clay, Temperature Humidity Sensor, temperature control box, environmental sensor, temperature-humidity signal is gathered modular converter, the data presentation monitoring memory, uninterrupted power source, it is characterized in that being filled with heat preserving and insulating material in the barrel of double-deck steel cylinder, the centre of double-deck steel cylinder vertically is inserted with cartridge heater, be inserted with two heating rods in the cartridge heater, the heating rod next door is provided with the probe thermopair, be filled with aluminium powder in the cartridge heater, be filled with the several layers bentonitic clay in the cavity between cartridge heater and the double-deck steel cylinder, be provided with several Temperature Humidity Sensors between bentonite bed and the bentonite bed, heating rod is connected temperature control box with the probe thermopair by lead, Temperature Humidity Sensor is connected temperature-humidity signal respectively with environmental sensor and gathers modular converter, temperature-humidity signal is gathered modular converter linking number monitoring memory according to the show, and heating rod connects uninterrupted power source.
The utility model has the advantages that: (1) heat conducting device has been simulated the conceptual model of the multi-layer cylinder shape of high-level waste disposal storehouse engineering site, and the padded coaming humiture Changing Pattern of disposing high-level waste for research on the spot has directive significance preferably; (2) no matter be temperature control, or the monitoring storage system of humiture data all realize automatically making operation of equipment simple the saving manpower; (3) the excellent properties parameter of heating rod, sensor, temperature control instrument and good sealing system, stability and the degree of accuracy that automatic storage system is guaranteed data result; (4) can measure the heat conductivity of other various clays, ground, sensor can be pacified requirement and arbitrarily designed simultaneously, but also bulging force, the isoparametric Changing Pattern of moisture in the research temperature changing processes such as embedment pressure sensor, moisture transducer in the soil block.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the arrangenent diagram of the utility model Temperature Humidity Sensor.
Fig. 3 is the another kind of arrangenent diagram of the utility model Temperature Humidity Sensor.
In the drawings, 1, double-deck steel cylinder 2, heat preservation rock 3, cartridge heater 4, heating rod 5, probe thermopair 6, aluminium powder 7, bentonitic clay 8, Temperature Humidity Sensor 9, temperature control box 10, environmental sensor 11, temperature-humidity signal are gathered modular converter 12, data presentation monitoring memory 13, uninterrupted power source
Embodiment
As shown in Figure 1, the utility model is achieved like this, be filled with heat preservation rock 2 in the barrel of double-deck steel cylinder 1, the centre of double-deck steel cylinder 1 vertically is inserted with cartridge heater 3, be inserted with two heating rods 4 in the cartridge heater 3, heating rod 4 next doors are provided with probe thermopair 5, be filled with aluminium powder 6 in the cartridge heater 3, be filled with several layers bentonitic clay 7 in the cavity between cartridge heater 3 and the double-deck steel cylinder 1, be provided with several Temperature Humidity Sensors 8 between bentonite bed and the bentonite bed, heating rod 4 is connected temperature control box 9 with probe thermopair 5 by lead, Temperature Humidity Sensor 8 is connected temperature-humidity signal respectively with environmental sensor 10 and gathers modular converter 11, temperature-humidity signal is gathered modular converter 11 linking numbers monitoring memory 12 according to the show, and heating rod 4 connects uninterrupted power source 13.
The layout of Temperature Humidity Sensor
In order to measure bentonitic clay 7 compacting block inside under the effect of simulation decay thermal source, be in thermal source diverse location humiture rule over time, need in soil block, arrange some miniature Temperature Humidity Sensors 8.Bentonite in lump adopts stacked mode to add, and is followed successively by the 1st～8 layer from top to bottom.The design attitude of Temperature Humidity Sensor 8 such as Fig. 2, shown in Figure 3, numeral is popped one's head in the protective cover top apart from cartridge heater 3 outer wall dimension for Temperature Humidity Sensor on the arrow, represent with s, the the 1st～4,6～8 layer, 0 ° of direction s=70mm of each layer place is provided with 1 Temperature Humidity Sensor, the 5th layer 180 ° direction s=70mm places are provided with 1, by these humiture situations of change, understand the simulation high-level waste and dispose the vertical humiture Changing Pattern of on-the-spot bentonitic clay compacting block apart from heating source same position Temperature Humidity Sensor.The 3rd layer 90 °, 180 °, 270 ° sides ring s=45mm, 20mm, the 95mm place is provided with 1 respectively, 90 °, 0 °, 270 ° direction s=95mm, 20mm, 45mm places of layer 5 are provided with 1 respectively, by the 3rd, the 5 layer of humiture situation of change apart from heating source different directions position transducer, research simulation high-level waste is disposed radially humiture Changing Pattern of on-the-spot bentonitic clay compacting block.The ambient temperature and humidity sensor is 1 in the installation room, understands the influence of ambient temperature and humidity to the heat conduction system.
Can also design the installation and the arrangement of soil block and sensor according to other different clay, ground sample performance characteristics and requirement of experiment voluntarily.
Because the high-level waste geology treatment time is long, and the diffusion of moisture in the compacting bentonitic clay is slower, the heat conduction test experiments time is different according to character such as bentonitic composition, density and water percentage, generally needed do not wait in several days by tens days, this just requires to provide the power supply of continous-stable, and the composition electric power system of uninterrupted power supply (ups) Unity and voltage stabilizer is taked in this design.
Temperature control box is mainly monitored the switching between power, temperature and two heating rods of cartridge heater, shows the cartridge heater temperature inside value of probe thermopair practical measurement simultaneously.Can carry out the setting and the demonstration of power, temperature on the control panel of temperature control box, the real output of heating rod can be according to the height of temperature setting, and the speed of programming rate and the precision of temperature control are regulated in 5%～100% scope of rated power.Temperature-controlled box also is furnished with the autoalarm of heat radiation and temperature, has increased safety coefficient.
The data presentation monitoring memory is realized by bentonitic clay thermal conductivity on-line monitoring software, software can show Temperature Humidity Sensor humiture numerical value automatically in real time in the corresponding position of heat-conducting system synoptic diagram, and can carry out simple on-line data analysis, the humiture data of different time can store in the corresponding document automatically, can convert file layout commonly used at any time to and carry out detailed data analysis and arrangement.Parameter, synoptic diagram etc. can arbitrarily be set as required in the software, as: time data memory can change speed adjustment according to humiture at interval, tests initial humiture and changes comparatively fast, at interval weak point can be set, and experiment back period interval can be grown.
Power supply adopts the 220V alternating current, is equipment set supply steady and continuous electric current by UPS and voltage stabilizer.It is 1.1kW that heating element adopts rated power, and diameter 10mm, long 400mm can heat the industrial dry combustion method electric heating tube more than 3000 hours continuously.What sensor adopted is protection type industry high precision Temperature Humidity Sensor; this Temperature Humidity Sensor has protective cover; the hole of protective cover can't enter bentonitic clay powder, dust and macromolecular particle; but gas can enter; thereby can effectively detect humiture; opposing compacting bentonite in lump pressure, protection sensor chip, thereby the serviceable life of prolongation sensor.Relative humidity measurement scope: 0～100%RH, precision: ± 1.8%RH; Temperature measurement range :-40～+ 123.8 ℃; Precision: ± 0.3 ℃; Response time:＜4s.The thicker 10mm of outer steel cylinder of double-deck steel cylinder, the interior steel cylinder of double-deck steel cylinder will be holed, thin 1mm, interlayer heat-insulation and heat-preservation material is the military project heat preservation rock, thickness 50mm, 750 ℃ of heatproofs, insulation grade secondary.Temperature controller is the output power regulator, electric current 40A, controllable temperature scope ± 3 ℃.Device start and experiment
Stand-by 90 ° of fan-shaped bentonitic clay compacting blocks of certain initial aqueous rate and compacted density are put into heating system, each layer is 4 totally 8 layers, places sensor in the compacting block, fills in the slit with the same bentonitic clay of forming, seal loam cake, connect the various circuits of equipment set.Open heat conduction online monitoring system software, configure parameters.Opening power is set temperature and performance number on the temperature control box, starts heating, begins experiment, and the humiture automatic data display also stores in the software.
Claims (1)
1. the experimental provision of a high-level radioactive-waste disposal padded coaming thermal conductivity, it comprises double-deck steel cylinder, heat preserving and insulating material, cartridge heater, heating rod, the probe thermopair, bentonitic clay, Temperature Humidity Sensor, temperature control box, environmental sensor, temperature-humidity signal is gathered modular converter, the data presentation monitoring memory, uninterrupted power source, it is characterized in that being filled with heat preserving and insulating material in the barrel of double-deck steel cylinder, the centre of double-deck steel cylinder vertically is inserted with cartridge heater, be inserted with two heating rods in the cartridge heater, the heating rod next door is provided with the probe thermopair, be filled with aluminium powder in the cartridge heater, be filled with the several layers bentonitic clay in the cavity between cartridge heater and the double-deck steel cylinder, be provided with several Temperature Humidity Sensors between bentonite bed and the bentonite bed, heating rod is connected temperature control box with the probe thermopair by lead, Temperature Humidity Sensor is connected temperature-humidity signal respectively with environmental sensor and gathers modular converter, temperature-humidity signal is gathered modular converter linking number monitoring memory according to the show, and heating rod connects uninterrupted power source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201847012U CN201689068U (en) | 2010-05-10 | 2010-05-10 | Experimental device for thermal conductivity of high-level waste disposing cushion material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201847012U CN201689068U (en) | 2010-05-10 | 2010-05-10 | Experimental device for thermal conductivity of high-level waste disposing cushion material |
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| CN201689068U true CN201689068U (en) | 2010-12-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706989A (en) * | 2012-07-05 | 2012-10-03 | 大连世有电力科技有限公司 | Sensor protection device for transformer oil gas on-line monitoring system |
| RU2502988C1 (en) * | 2012-07-12 | 2013-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Вологодский государственный технический университет" (ВоГТУ) | Method to determine heat conductivity of loose materials in transient thermal mode |
| CN103852561A (en) * | 2013-09-24 | 2014-06-11 | 核工业北京地质研究院 | Sensor arrangement structure and method in buffer material multi-field coupling experiment bench |
| CN105784925A (en) * | 2014-12-26 | 2016-07-20 | 核工业北京地质研究院 | Head cover device for buffer material test bench cavity |
| CN112178607A (en) * | 2020-09-14 | 2021-01-05 | 聚光科技(杭州)股份有限公司 | Method for stabilizing steam generation amount |
-
2010
- 2010-05-10 CN CN2010201847012U patent/CN201689068U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706989A (en) * | 2012-07-05 | 2012-10-03 | 大连世有电力科技有限公司 | Sensor protection device for transformer oil gas on-line monitoring system |
| RU2502988C1 (en) * | 2012-07-12 | 2013-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Вологодский государственный технический университет" (ВоГТУ) | Method to determine heat conductivity of loose materials in transient thermal mode |
| CN103852561A (en) * | 2013-09-24 | 2014-06-11 | 核工业北京地质研究院 | Sensor arrangement structure and method in buffer material multi-field coupling experiment bench |
| CN105784925A (en) * | 2014-12-26 | 2016-07-20 | 核工业北京地质研究院 | Head cover device for buffer material test bench cavity |
| CN112178607A (en) * | 2020-09-14 | 2021-01-05 | 聚光科技(杭州)股份有限公司 | Method for stabilizing steam generation amount |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20120510 |