CN103439227A - Liquid lithium lead compatibility static testing device - Google Patents
Liquid lithium lead compatibility static testing device Download PDFInfo
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- CN103439227A CN103439227A CN201310404752XA CN201310404752A CN103439227A CN 103439227 A CN103439227 A CN 103439227A CN 201310404752X A CN201310404752X A CN 201310404752XA CN 201310404752 A CN201310404752 A CN 201310404752A CN 103439227 A CN103439227 A CN 103439227A
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Abstract
The invention discloses a liquid lithium lead compatibility static testing device which comprises a heating system, a vacuumizing system (13), an air supplementing system (14) and a plurality of test sample chambers (15), wherein the middle-lower part of each test sample chamber (15) is arranged in a heating furnace (12) of the heating system, each test sample chamber (15) is subjected to independent temperature control, the upper part of each test sample chamber (15) is respectively connected with the vacuumizing system (13) and the air supplementing system (14), and a test sample (8) and solid lithium lead are respectively placed in each test sample chamber (15). By adopting the technical scheme provided by the invention, compatibility between test samples and liquid lithium lead with different temperatures can be simultaneously tested under the condition that test samples react with the liquid lithium lead with different temperatures for different times, and the problem that the test samples can be only subjected to compatibility test under the same test condition in the prior art is solved; the liquid lithium lead compatibility static testing device is simple in structure and convenient to operate; and test procedures and test cost are reduced.
Description
Technical field
The invention belongs to the nuclear power field, be specifically related to the plumbous compatibility envelope test of a kind of liquid lithium device.
Background technology
The liquid metal LiPb blanket is current one of the most attractive following fusion reactor blanket concept in the world, and wherein the consistency problem of cladding structure material and liquid lithium lead is one of covering key scientific problems.The low activation ferrite/martensite steel Reduced Activation Ferritic-Martensitic steels that cladding structure material one preferred technique degree is the most ripe relatively, RAFMs, and it has high thermal conductivity, low thermal expansivity and the advantage such as good anti-void swelling and mechanical property.So far, each main ITER participating country, in conjunction with national liquid LiPb blanket designing requirement, has set up respectively corresponding static state and dynamic compatibility test device, and has carried out RAFM steel base or the compatibility test of coating material under the different tests condition.
The plumbous compatibility test device of the static lithium of U.S.'s Oak Ridge National Laboratory adopts test specimen chamber inversion method to reach the plumbous purpose that contacts and break away from test specimen of liquid metal lithium.This test unit operation is comparatively simple, but the device design is comparatively complicated, and comparatively difficult to the accurate temperature measurement at sample place, can only carry out the compatibility test of identical conditions.The plumbous compatibility test device of the liquid lithium of China Engineering Physics Research Institute's development adopts sample in motor revolving reaction still to reach the plumbous purpose contacted with the sample homogeneous of liquid metal lithium.This test unit reactor high temperature place needs sealing, and rotary sample need adopt motive seal, manufactures and designs and needs to drop into higher cost.And test specimen can only carry out compatibility test under same test condition.
Summary of the invention
For the defect existed in prior art, the invention provides the plumbous compatibility envelope test of a kind of liquid lithium device, can carry out test specimen under different operating modes and the compatibility test of liquid metal lithium lead simultaneously, simple in structure, easy to operate, experimentation cost is low.
For reaching above purpose, the technical solution used in the present invention is: the plumbous compatibility envelope test of a kind of liquid lithium device is provided, comprise heating system, pumped vacuum systems, air compensating system and a plurality of test specimens chamber, the middle and lower part of each described test specimen chamber is arranged in the heating furnace of heating system, and independent temperature control is carried out in each test specimen chamber, the top of each test specimen chamber is connected with air compensating system with pumped vacuum systems respectively, indoor test specimen and the solid-state lithium lead of being placed with respectively of each test specimen.
Further, described test specimen chamber comprises the flange of testing cavity and sealing this test cavity upper end; Bottom in described test cavity is provided with molybdenum crucible, and described solid-state lithium lead is placed in molybdenum crucible; Also be provided with thermocouple trap moving up and down in described test cavity, described thermocouple trap bottom is positioned at molybdenum crucible, and top passes flange; Described thermocouple trap bottom is provided with specimen holder, affixed test specimen on described specimen holder.
Further, in described thermocouple trap, be provided with for measuring the thermopair of test specimen temperature.
Further, the middle and upper part of described thermocouple trap is provided with the heat insulating reflecting screen.
Further, adopt silicone rubber seal between described thermocouple trap and described flange.
Further, the middle and lower part of described thermocouple trap adopts molybdenum blind pipe processed, and top adopts the 316L stainless-steel tube, and centre is tightly connected by cutting ferrule is straight-through.
Further, be provided with successively retaining valve, solenoid valve and pressure transducer on the pipeline of described air compensating system.
Further, the pipeline of described pumped vacuum systems is provided with stop valve.
Useful technique effect of the present invention is:
(1) the present invention adopts a plurality of test specimens chamber, be arranged on stations different in heating furnace, can carry out the compatibility test of the plumbous effect of test specimen and different temperatures liquid metal lithium different time simultaneously, simple in structure, easy to operate, saved test period and experimentation cost;
(2) top of test cavity is provided with the heat insulating reflecting screen, has not only reduced the thermal losses in the test cavity and has reduced the temperature at flange seal place, makes the temperature at flange seal place can reach room temperature;
(3) test is provided with thermocouple trap moving up and down in cavity, by moving up and down of thermocouple trap, has realized contacting and disengaging of test specimen frame and liquid metal lithium lead;
(4) be provided with temperature thermocouple in the thermocouple trap, can accurately measure test specimen place temperature at the trial.
The accompanying drawing explanation
Fig. 1 is the structural representation of the plumbous compatibility envelope test of liquid lithium of the present invention device.
In figure:
1-thermocouple trap 2-silicon rubber 3-flange 4-heat insulating reflecting screen
5-molybdenum crucible lid 6-molybdenum crucible 7-test cavity 8-test specimen
The straight-through 12-heating furnace of the plumbous 11-cutting ferrule of 9-specimen holder 10-liquid lithium
13-pumped vacuum systems 14-air compensating system 15-test specimen chamber 16-retaining valve
17-solenoid valve 18-pressure transducer 19-stop valve.
embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of multistation envelope test device that is applicable to material corrosion test in the plumbous medium of liquid lithium, comprise heating system, pumped vacuum systems 13, air compensating system 14 and a plurality of test specimens chamber 15.Each 15 middle and lower part, test specimen chamber is arranged on respectively on the different station in the heating furnace 12 of heating system, and temperature control is carried out by temperature-controlling system independently in each test specimen chamber 15, guarantee that a plurality of test specimens chamber can carry out test specimen under different operating modes and the compatibility test of liquid metal lithium lead 10 simultaneously, saved test period and experimentation cost.Each 15 top, test specimen chamber connects pumped vacuum systems 13 and air compensating system 14.
Wherein, each test specimen chamber 15 comprises the CF flange of the standard of test cavity 7 and leakage test cavity 7 upper ends.The bottoms of testing in cavity 7 are provided with molybdenum crucible 6, and molybdenum crucible 6 is equipped with solid-state lithium lead, and molybdenum crucible 6 is provided with molybdenum crucible lid 5, prevents splashing of the plumbous rear liquefy lithium lead of heating of solid-state lithium.Be provided with thermocouple trap 1 moving up and down in test cavity 7, moving up and down of thermocouple trap 1 realized test specimen frame and liquid metal lithium Effects of Lead Exposure and disengaging, avoids available technology adopting upset or motor rotation to reach liquid metal lithium lead and contacts with test specimen and break away from.Thermocouple trap 1 is comprised of two parts, and bottom adopts the blind pipe of molybdenum system, is positioned at molybdenum crucible 6; Top adopts the 316L stainless-steel tube, passes flange 3, and two parts adopt Swagelok cutting ferrule straight-through 11 to be tightly connected; The bottom of thermocouple trap 1 is provided with specimen holder 9, and specimen holder 9 adopts high-purity molybdenum filament to be fixed on the bottom of thermocouple trap 1, and 9 10mm * 10mm * 1 mm test specimens 8 adopt high-purity molybdenum filament to be fixed on molybdenum specimen holder 9 processed.
Be provided with temperature thermocouple in thermocouple trap 1, can accurately measure the temperature at test specimen place, thermopair puts into from the upper end open of thermocouple trap the measurement that the bottom blind pipe carries out temperature.
Thermocouple trap 1 middle and upper part soldering stainless steel heat insulating reflecting screen 4, not only reduced the thermal losses of test cavity middle and lower part and reduced the temperature at flange seal place, makes the temperature at flange seal place reach room temperature.
Between thermocouple trap 1 and flange 3, adopt ordinary silicon rubber 2 to be sealed.
It is that engagement positions vacuumizes that pumped vacuum systems 13 adopts mechanical pump, simple and convenient; The pipeline of pumped vacuum systems is provided with stop valve 19, closes stop valve 19, after being filled with appropriate high-purity argon gas by air compensating system 14 to this device, can guarantee the long-time running under 2atm pressure of this test unit.
Below installation and the use procedure of test unit of the present invention are described:
At first, 15 middle and lower parts, test specimen chamber are mounted on the different station in heating furnace, and this test specimen chamber 15 can guarantee in long-term work below 650 ℃, then 15 top, test specimen chamber be connected to air compensating system 14 and pumped vacuum systems 13.
The molybdenum crucible 6 appropriate block lithium of packing into is plumbous and put into test cavity 7 bottoms, and test specimen 8 is fixed on specimen holder 9, by flange 3, whole system is sealed.Test unit leak detection, after this device be filled with the 2atm high-purity argon gas by air compensating system 14, by the force value of pressure transducer 18 and Displaying Meter display device, if reach the standard of setting, solenoid valve 17 cuts out automatically.Vacuumized by pumped vacuum systems 13, then be filled with the 2atm high-purity argon gas, repeat 4 times.Heating system heats up according to the setting degree, in temperature-rise period, needs adjustment System pressure to make it remain on 2atm.After test specimen chamber 15 arrives design temperature, slow mobile thermocouple trap 1 to molybdenum crucible 6 bottoms, makes test specimen 8 fully contact with liquid metal lithium lead 10 with specimen holder 9.The test specimen chamber 15 of different station can arrange the different tests temperature and carry out the material compatibility test simultaneously.After off-test, slow mobile thermocouple trap 1 breaks away from specimen holder 9 and liquid metal lithium plumbous 10.Heating furnace 12 stops heating, makes test specimen 8 be cooled to room temperature, opens flange 3 and takes out test specimen.
The plumbous compatibility envelope test of liquid lithium of the present invention device, be not limited to above-mentioned embodiment, and those skilled in the art's technical scheme according to the present invention draws other embodiment, belongs to equally technological innovation scope of the present invention.
Claims (8)
1. the plumbous compatibility envelope test of liquid lithium device, comprise heating system, pumped vacuum systems (13) and air compensating system (14), it is characterized in that: also comprise a plurality of test specimens chamber (15), the middle and lower part of each described test specimen chamber (15) is arranged in the heating furnace (12) of heating system, and independent temperature control is carried out in each test specimen chamber (15), the top of each test specimen chamber (15) is connected with air compensating system (14) with pumped vacuum systems (13) respectively, be placed with respectively test specimen (8) and solid-state lithium lead in each test specimen chamber (15).
2. the plumbous compatibility envelope test of liquid lithium as claimed in claim 1 device, it is characterized in that: described test specimen chamber (15) comprises test cavity (7) and seals the flange (3) of this test cavity (7) upper end; Bottom in described test cavity (7) is provided with molybdenum crucible (6), and described solid-state lithium lead is placed in molybdenum crucible (6); Also be provided with thermocouple trap moving up and down (1) in described test cavity (7), described thermocouple trap (1) bottom is positioned at molybdenum crucible (6), and top passes flange (3); Described thermocouple trap (1) bottom is provided with specimen holder (9), the upper affixed test specimen (8) of described specimen holder (9).
3. the plumbous compatibility envelope test of liquid lithium as claimed in claim 2 device, is characterized in that: in described thermocouple trap (1), be provided with for measuring the thermopair of test specimen (8) temperature.
4. the plumbous compatibility envelope test of liquid lithium as claimed in claim 3 device, it is characterized in that: the middle and upper part of described thermocouple trap (1) is provided with heat insulating reflecting screen (4).
5. the plumbous compatibility envelope test of liquid lithium as claimed in claim 4 device, is characterized in that: adopt silicon rubber (2) sealing between described thermocouple trap (1) and described flange (3).
6. the plumbous compatibility envelope test of liquid lithium as claimed in claim 5 device, it is characterized in that: the middle and lower part of described thermocouple trap (1) adopts molybdenum blind pipe processed, and top adopts the 316L stainless-steel tube, middlely leads directly to (11) by cutting ferrule and is tightly connected.
7. the plumbous compatibility envelope test of liquid lithium as described as claim 1-6 any one device, is characterized in that: be provided with successively retaining valve (16), solenoid valve (17) and pressure transducer (18) on the pipeline of described air compensating system.
8. the plumbous compatibility envelope test of as described as claim 1-6 any one liquid lithium device, it is characterized in that: the pipeline of described pumped vacuum systems is provided with stop valve (19).
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| CN201310404752.XA CN103439227B (en) | 2013-09-09 | 2013-09-09 | Liquid lithium lead compatibility static testing device |
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| CN201310404752.XA CN103439227B (en) | 2013-09-09 | 2013-09-09 | Liquid lithium lead compatibility static testing device |
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| CN103439227B CN103439227B (en) | 2015-04-29 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374592A (en) * | 2014-11-15 | 2015-02-25 | 安徽科技学院 | Comprehensive experiment system for liquid metal medium cladding module |
| CN105136620A (en) * | 2015-08-14 | 2015-12-09 | 中国石油化工股份有限公司 | Dust exothermic decomposition measuring apparatus and using method thereof |
| CN110192089A (en) * | 2017-01-19 | 2019-08-30 | 安捷伦科技有限公司 | More temperature spectrometer modules, system and its application method |
| CN110658310A (en) * | 2019-10-14 | 2020-01-07 | 广州供电局有限公司 | Compatibility testing system |
| CN110823768A (en) * | 2019-11-21 | 2020-02-21 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN111879911A (en) * | 2020-06-15 | 2020-11-03 | 中国原子能科学研究院 | Experimental device for static compatibility of liquid metal |
| CN115112547A (en) * | 2022-05-23 | 2022-09-27 | 哈尔滨工业大学 | Static multi-sample lead-bismuth corrosion test device and test method |
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| CN102358618A (en) * | 2011-07-04 | 2012-02-22 | 中国工程物理研究院核物理与化学研究所 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
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| CN101145407A (en) * | 2007-09-30 | 2008-03-19 | 中国科学院等离子体物理研究所 | Fusion reactor liquid metal hot convection experiment loop and experiment method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374592A (en) * | 2014-11-15 | 2015-02-25 | 安徽科技学院 | Comprehensive experiment system for liquid metal medium cladding module |
| CN105136620A (en) * | 2015-08-14 | 2015-12-09 | 中国石油化工股份有限公司 | Dust exothermic decomposition measuring apparatus and using method thereof |
| CN110192089A (en) * | 2017-01-19 | 2019-08-30 | 安捷伦科技有限公司 | More temperature spectrometer modules, system and its application method |
| CN110658310A (en) * | 2019-10-14 | 2020-01-07 | 广州供电局有限公司 | Compatibility testing system |
| CN110823768A (en) * | 2019-11-21 | 2020-02-21 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN110823768B (en) * | 2019-11-21 | 2023-02-28 | 中国核动力研究设计院 | Device and method for researching interface compatibility of solid material |
| CN111879911A (en) * | 2020-06-15 | 2020-11-03 | 中国原子能科学研究院 | Experimental device for static compatibility of liquid metal |
| CN115112547A (en) * | 2022-05-23 | 2022-09-27 | 哈尔滨工业大学 | Static multi-sample lead-bismuth corrosion test device and test method |
| CN115112547B (en) * | 2022-05-23 | 2023-10-27 | 哈尔滨工业大学 | Static multi-sample lead-bismuth corrosion test device and test method |
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| CN103439227B (en) | 2015-04-29 |
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