CN103439227B - Liquid lithium lead compatibility static testing device - Google Patents
Liquid lithium lead compatibility static testing device Download PDFInfo
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- CN103439227B CN103439227B CN201310404752.XA CN201310404752A CN103439227B CN 103439227 B CN103439227 B CN 103439227B CN 201310404752 A CN201310404752 A CN 201310404752A CN 103439227 B CN103439227 B CN 103439227B
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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 nuclear power field, be specifically related to a kind of liquid lithium lead compatibility envelope test device.
Background technology
Liquid metal LiPb blanket is one of following fusion reactor blanket concept of most attractive force in the world at present, 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 relatively ripe, RAFMs, and it has high thermal conductivity, low thermal expansivity and the advantage such as excellent Flouride-resistani acid phesphatase swelling and mechanical property.So far, each main ITER participating country combines the liquid lithium lead blanket design requirement of this country, establishes corresponding static and dynamic compatibility test device respectively, and has carried out RAFM steel base or the compatibility test of coating material under different tests condition.
The plumbous compatibility test device of the static lithium of U.S.'s Oak Ridge National Laboratory adopts test specimen room inversion method to reach the plumbous object contacting with test specimen and depart from of liquid metal lithium.The operation of this test unit is comparatively simple, but apparatus 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 liquid lithium lead compatibility test unit of China Engineering Physics Research Institute's development adopts sample in motor revolving reaction still to reach the plumbous object that contact homogeneous with sample of liquid metal lithium.This test unit reactor high temperature place needs sealing, and rotary sample need adopt motive seal, manufactures and designs and need 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 a kind of liquid lithium lead compatibility envelope test device, can carry out the compatibility test of test specimen under different operating mode and liquid metal lithium lead simultaneously, structure is simple, and easy to operate, experimentation cost is low.
For reaching above object, the technical solution used in the present invention is: provide a kind of liquid lithium lead compatibility envelope test device, comprise heating system, pumped vacuum systems, air compensating system and multiple test specimen room, the middle and lower part of each described test specimen room is arranged in the heating furnace of heating system, and independent temperature control is carried out in each test specimen room, the top of each test specimen room is connected with air compensating system with pumped vacuum systems respectively, and each test specimen indoor are placed with test specimen respectively and solid-state lithium is plumbous.
Further, described test specimen room comprises test cavity and seals the flange of 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, the thermopair for measuring test specimen temperature is provided with in described thermocouple trap.
Further, the middle and upper part of described thermocouple trap is provided with heat insulating reflecting screen.
Further, silicone rubber seal is adopted between described thermocouple trap and described flange.
Further, the middle and lower part of described thermocouple trap adopts molybdenum blind pipe, and top adopts 316L stainless-steel tube, and centre is connected by cutting ferrule feed-through seal.
Further, the pipeline of described air compensating system is provided with retaining valve, solenoid valve and pressure transducer successively.
Further, the pipeline of described pumped vacuum systems is provided with stop valve.
Advantageous Effects of the present invention is:
(1) the present invention adopts multiple test specimen room, be arranged on stations different in heating furnace, can carry out test specimen and the plumbous compatibility test acting on different time of different temperatures liquid metal lithium, structure is simple simultaneously, easy to operate, save test period and experimentation cost;
(2) test the top of cavity and be provided with heat insulating reflecting screen, not only decrease the thermal losses in test cavity and reduce the temperature at flange seal place, making the temperature at flange seal place reach room temperature;
(3) test in cavity and be provided with thermocouple trap moving up and down, move up and down by thermocouple trap the contact and disengaging that achieve test specimen frame and liquid metal lithium lead;
(4) be provided with temperature thermocouple in thermocouple trap, accurately can measure test specimen place temperature at the trial.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquid lithium lead compatibility envelope test device of the present invention.
In figure:
1-thermocouple trap 2-silicon rubber 3-flange 4-heat insulating reflecting shields
5-molybdenum crucible lid 6-molybdenum crucible 7-tests cavity 8-test specimen
9-specimen holder 10-liquid lithium lead 11-cutting ferrule leads directly to 12-heating furnace
13-pumped vacuum systems 14-air compensating system 15-test specimen room 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 being applicable to material corrosion test in liquid lithium lead medium, comprise heating system, pumped vacuum systems 13, air compensating system 14 and multiple test specimen room 15.The middle and lower part of each test specimen room 15 is separately positioned on the different station in the heating furnace 12 of heating system, and temperature control is carried out by independently temperature-controlling system in each test specimen room 15, ensure that the compatibility test of test specimen under different operating mode and liquid metal lithium lead 10 can be carried out in multiple test specimen room simultaneously, save test period and experimentation cost.The top of each test specimen room 15 connects pumped vacuum systems 13 and air compensating system 14.
Wherein, each test specimen room 15 comprises the CF flange of the standard of test cavity 7 and leakage test cavity 7 upper end.Bottom in test cavity 7 is provided with molybdenum crucible 6, and it is plumbous that molybdenum crucible 6 is equipped with solid-state lithium, and molybdenum crucible 6 is provided with molybdenum crucible lid 5, prevents the splashing of the rear liquefy lithium lead of solid-state lithium lead heating.Thermocouple trap 1 moving up and down is provided with in test cavity 7, the moving up and down of thermocouple trap 1 achieves test specimen frame and liquid metal lithium Effects of Lead Exposure and disengaging, avoids adopting upset or motor to rotate in prior art and reach that liquid metal lithium is plumbous to be contacted with test specimen and depart from.Thermocouple trap 1 is made up of two parts, and bottom adopts the blind pipe of molybdenum, is positioned at molybdenum crucible 6; Top adopts 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 pieces of 10mm × 10mm × 1 mm test specimens 8 adopt high-purity molybdenum filament to be fixed on molybdenum specimen holder 9.
Be provided with temperature thermocouple in thermocouple trap 1, accurately can measure the temperature at test specimen place, thermopair puts into from the upper end open of thermocouple trap the measurement that bottom blind pipe carries out temperature.
Thermocouple trap 1 middle and upper part soldering stainless steel heat insulating reflecting screen 4, not only decreases the thermal losses and the temperature reducing flange seal place of testing cavity middle and lower part, makes the temperature at flange seal place reach room temperature.
Usual silicone rubber 2 is adopted to seal between thermocouple trap 1 and flange 3.
Heating system 12 forms by overlapping heating unit more, and each unit comprises the triumphant dress calandria of spiral and temperature controller is formed; Each temperature controller controls triumphant dress calandria according to setting program, can realize the overall process heating up, be incubated and lower the temperature; And be independent of each other between each temperature controller.
Air compensating system 14 can supplement high-purity argon gas to test unit, and passes through the cooperation of retaining valve 16, solenoid valve 17 and pressure transducer 18, makes the pressure of device remain on 2atm.
Pumped vacuum systems 13 adopts mechanical pump to be that engagement positions vacuumizes, 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, can ensure the long-time running under 2atm pressure of this test unit by air compensating system 14 to this device.
Below the installation of test unit of the present invention and use procedure are described:
First, middle and lower part, test specimen room 15 is mounted on the different station in heating furnace, and this test specimen room 15 can ensure long-term work below 650 DEG C, then the top of test specimen room 15 be connected air compensating system 14 and pumped vacuum systems 13.
Molybdenum crucible 6 loads appropriate block lithium lead and puts into test cavity 7 bottom, and test specimen 8 is fixed on specimen holder 9, whole system is sealed by flange 3.Test unit is hunted leak, after this device be filled with 2atm high-purity argon gas by air compensating system 14, by pressure transducer 18 force value with 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 2atm high-purity argon gas, repeat 4 times.Heating system heats up according to setting degree, needs adjustment System pressure to make it remain on 2atm in temperature-rise period.After test specimen room 15 arrives design temperature, bottom slow mobile thermocouple trap 1 and specimen holder 9 to molybdenum crucible 6, test specimen 8 is fully contacted with liquid metal lithium lead 10.The test specimen room 15 of different station can arrange different tests temperature and carry out compatibility tests simultaneously.After off-test, slow mobile thermocouple trap 1 makes specimen holder 9 depart from liquid metal lithium plumbous 10.Heating furnace 12 stops heating, makes test specimen 8 be cooled to room temperature, opens flange 3 and take out test specimen.
Liquid lithium lead compatibility envelope test device of the present invention, is not limited to above-mentioned embodiment, and those skilled in the art's technical scheme according to the present invention draws and other embodiment belongs to technological innovation scope of the present invention equally.
Claims (8)
1. a liquid lithium lead compatibility envelope test device, comprise heating system, pumped vacuum systems (13) and air compensating system (14), it is characterized in that: also comprise multiple test specimen room (15), the middle and lower part of each described test specimen room (15) is arranged in the heating furnace (12) of heating system, and each test specimen room (15) carries out independent temperature control, the top of each test specimen room (15) is connected with air compensating system (14) with pumped vacuum systems (13) respectively, test specimen (8) and solid-state lithium lead is placed with respectively in each test specimen room (15).
2. liquid lithium lead compatibility envelope test device as claimed in claim 1, is characterized in that: described test specimen room (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 (1) moving up and down 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. liquid lithium lead compatibility envelope test device as claimed in claim 2, is characterized in that: be provided with the thermopair for measuring test specimen (8) temperature in described thermocouple trap (1).
4. liquid lithium lead compatibility envelope test device as claimed in claim 3, is characterized in that: the middle and upper part of described thermocouple trap (1) is provided with heat insulating reflecting screen (4).
5. liquid lithium lead compatibility envelope test device as claimed in claim 4, is characterized in that: adopt silicon rubber (2) to seal between described thermocouple trap (1) and described flange (3).
6. liquid lithium lead compatibility envelope test device as claimed in claim 5, is characterized in that: the middle and lower part of described thermocouple trap (1) adopts molybdenum blind pipe, and top adopts 316L stainless-steel tube, and centre is tightly connected by cutting ferrule straight-through (11).
7. the liquid lithium lead compatibility envelope test device as described in any one of claim 1-6, is characterized in that: the pipeline of described air compensating system is provided with successively retaining valve (16), solenoid valve (17) and pressure transducer (18).
8. the liquid lithium lead compatibility envelope test device as described in any one of claim 1-6, 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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| CN103439227A CN103439227A (en) | 2013-12-11 |
| CN103439227B true CN103439227B (en) | 2015-04-29 |
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Families Citing this family (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 |
| CN105136620B (en) * | 2015-08-14 | 2018-01-19 | 中国石油化工股份有限公司青岛安全工程研究院 | A kind of dust exothermic decomposition measure device and its application method |
| US10890523B2 (en) * | 2017-01-19 | 2021-01-12 | Agilent Technologies, Inc. | Multi-temperature optical spectrometer modules, systems and methods of using the same |
| CN110658310A (en) * | 2019-10-14 | 2020-01-07 | 广州供电局有限公司 | Compatibility testing system |
| 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 |
| 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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| 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 |
| CN203465171U (en) * | 2013-09-09 | 2014-03-05 | 中国原子能科学研究院 | Static test device for liquid lithium lead compatibility |
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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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