CN105739552A - Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof - Google Patents
Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof Download PDFInfo
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- CN105739552A CN105739552A CN201610076804.9A CN201610076804A CN105739552A CN 105739552 A CN105739552 A CN 105739552A CN 201610076804 A CN201610076804 A CN 201610076804A CN 105739552 A CN105739552 A CN 105739552A
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
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Abstract
The invention discloses an oxygen control device used for a liquid lead or liquid lead-bismuth alloy loop system and a method thereof, and belongs to the technical field of nuclear engineering and nuclear. The oxygen control device comprises a driving pump, two oxygen sensor interfaces, two electric valves, a mass exchanger, a spiral cooling water pipe, a first flange, a heat exchanger, a heater and a pipeline. The two oxygen sensor interfaces are a first oxygen sensor interface and a second oxygen sensor interface respectively. The two electric valves are a first electric valve and a second electric valve respectively. The oxygen control device adjusts temperature of liquid lead or liquid lead-bismuth alloy through the cooling device and the heating device and controls dissolution and precipitation of solid lead oxide in liquid lead or liquid lead-bismuth alloy so as to adjust oxygen concentration in liquid lead or liquid lead-bismuth alloy. The oxygen control device has the characteristics of being efficient, rapid and clean, and has the characteristics that the operation scheme is flexible and processing and assembling are easy in comparison with the conventional solid oxygen concentration control method.
Description
Technical field
The invention belongs to nuclear engineering and nuclear technology field, be specifically related to a kind of oxygen control devices and methods therefor for liquid lead or liquid lead bismuth alloy circuit system.
Background technology
Liquid lead or lead bismuth alloy be Accelerator driven subcritical system (ADS) in the important candidate material of coolant in the preferred material of main high energy hash target and lead base reactor.But liquid lead or the lead bismuth alloy corrosivity to structural steel, become its wide variety of key factor of restriction.At present, oxygen concentration controls technology is generally believed that it is maximally effective liquid lead bismuth alloy anticorrosion means.Existing experiment in the world, is almost by injecting the oxygen of low concentration in liquid metal or in the gas that covers of its surface or hydrogen regulates the oxygen content in liquid lead bismuth alloy entirely, but this gaseous oxygen concentration control mode exists shortcomings.
By regulating dissolving and the precipitation of Solid Lead/bismuth oxide, and then quickly the oxygen content regulated in liquid lead bismuth alloy is a leading technology being in international forward position.Solid oxygen concentration controls technology, there is efficient mass exchange, the adjustment of quick oxygen concentration, generate without residue, clear up without timing, do not reduce Material Thermodynamics performance and the plurality of advantages such as hydrogen injecting systems can be abolished completely, have controlling compared to gas and have an enormous advantage.
Summary of the invention
It is an object of the invention to provide a kind of oxygen control devices and methods therefor for liquid lead or liquid lead bismuth alloy circuit system.
To achieve these goals, the technical scheme that the present invention takes is as follows:
A kind of for the oxygen control device in liquid lead or liquid lead bismuth alloy circuit system, described oxygen control device includes: drive 2, two oxygen sensor interfaces of pump, two electrically operated valves, mass exchanger 1, spiral cooling water pipe the 8, first flange 24, heat exchanger 4, heater 11 and pipeline；Two oxygen sensor interface respectively the first oxygen sensor interface 3 and the second oxygen sensor interfaces 25；Two electrically operated valve respectively the first electrically operated valve 7 and the second electrically operated valves 26；
Described oxygen control device, along the downstream driving pump 2, is connected with the first electrically operated valve 7, mass exchanger the 1, first flange 24, heat exchanger 4, heater the 11, second electrically operated valve 26 in turn by the mode of flange or welding on pipeline, forms bypath system；
The pipeline of the first electrically operated valve 7 upstream leaves the first oxygen sensor interface 3, the pipeline in the second electrically operated valve 26 downstream leaves the second oxygen sensor interface 25；First oxygen sensor interface 3 and the second oxygen sensor interface 25, installs oxygen sensor for the upstream and downstream at oxygen control device；
Mass exchanger 1 is provided with spiral cooling tube 8, the upstream and downstream of spiral cooling tube 8 respectively spiral coolant outlet 10 and spiral cooling water inlet 9；
In the upstream and downstream of heat exchanger 4, it is respectively equipped with heat exchanger coolant outlet 5 and heat exchanger cooling water inlet 6.
Described mass exchanger 1 includes the second flange 12, hollow pipe 13, particles of lead oxide container 14, fixing filter screen 15, spring 16, sliding screen 17, electrically heated rod 18, electrically heated rod protective cover 19, nut 21 and particles of lead oxide assembly 22；
Second flange 12 is welded with one end of hollow pipe 13, makes hollow pipe 13 dock intact with the hole in the middle of the second flange 12, then fixing filter screen 15 is welded on hollow pipe 13；
Power line by electrically heated rod 18, draw through hollow pipe 13 and by the hole in the middle of the second flange 12, and the other end of electrically heated rod 18 with hollow pipe 13 is welded, here welding to ensure sealing, can not there is weld seam, in order to avoid liquid lead or liquid lead bismuth alloy are flowed into hollow pipe and soak the power line of electrically heated rod 18；Then again the A end of electrically heated rod protective cover 19 is welded with electrically heated rod 18；
Spring 16, sliding screen 17 and particles of lead oxide assembly 22 on overlapping successively on electrically heated rod protective cover 19; the number of particles of lead oxide assembly is determined by the size of the length of electrically heated rod protective cover 19 with particles of lead oxide assembly 22; the outside dimension of spring 16 is identical with the outside dimension of fixing filter screen 15 and sliding screen 17; the one end making spring 16 is fixed filter screen 15 and is blocked, and the other end contacts with sliding screen 17；The last outside that particles of lead oxide container 14 is covered on electrically heated rod protective cover 19 again; and by centre bore through particles of lead oxide container 14B end of the B end of electrically heated rod protective cover 19, finally the B end of electric heater frost protection cover 19 and nut 21 are undertaken tightening fixing by screw thread；When spring 16 ensure that particles of lead oxide 14 internal volume change (mainly the dissolving of the particles of lead oxide 20 in particles of lead oxide assembly 22 and precipitation cause), above-mentioned device is still within impaction state.
By being undertaken sealing fastening by the first flange 24 and the second flange 12 in mass exchanger 1, mass exchanger 1 is made to be fixed on oxygen control device.
Described particles of lead oxide assembly 22 is made up of the plumbous net of annular or annular bismuth net or annular lead bismuth alloy net 23 and particles of lead oxide 20.
The plumbous net of described annular or annular bismuth net or annular lead bismuth alloy net 23 are a cross section is the annular groove of concave, and in groove, close-packed arrays has particles of lead oxide 20.
Described fixing filter screen 15 and sliding screen 17 are annular plate, and on it, tool is provided with the aperture that diameter is 2mm.
The A end opening of described particles of lead oxide container 14, B end has the end, bottom central aperture, and the threaded rod of electrically heated rod protective cover 19 can be made to insert, and bottom is formed around the aperture that diameter is 2mm, it is allowed to liquid lead or liquid lead bismuth alloy pass through.
Described oxygen control device carries out the method for oxygen concentration control: when the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is lower than default oxygen concentration, open the first electrically operated valve 7 and the second electrically operated valve 26, start oxygen control device, a part of liquid lead or liquid lead bismuth alloy enter bypath system, and flow through mass exchanger 1；Open electrically heated rod 18, the accelerated oxidation lead granule 20 dissolving in liquid lead or liquid lead bismuth alloy, the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy is made to be promoted, oxygen concentration get a promotion after liquid lead or liquid lead bismuth alloy return in circuit system, make the oxygen concentration in circuit system also promote therewith；After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches default oxygen concentration, close the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device out of service；
When the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is higher than when presetting oxygen concentration, open the first electrically operated valve 7 and the second electrically operated valve 26, start oxygen control device, a part of liquid lead or liquid lead bismuth alloy and enter bypath system, and flow through mass exchanger 1；Open spiral cooling water pipe 8, reduce oxygen saturated concentration in liquid lead or liquid lead bismuth alloy, make the oxygen in liquid lead or liquid lead bismuth alloy, precipitate out near particles of lead oxide 20 with the form of lead oxide or surface, and then make the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy reduce；Liquid lead or liquid lead bismuth alloy containing relatively low oxygen concentration return in circuit system, make the oxygen concentration in circuit system also decrease；After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches and drops to default oxygen concentration, close the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device out of service.
When electrically heated rod 18 built-in in mass exchanger 1 is opened, it is necessary to start heat exchanger 4 simultaneously, make the temperature of the liquid lead in bypath system or liquid lead bismuth alloy be unlikely to too high, cause bigger thermal stress, damage equipment.
When opening spiral cooling water pipe 8, it is necessary to start heater 11, compensate owing to cooling down the change of liquid lead or liquid lead bismuth alloy temperature in the bypath system caused simultaneously.
The invention have the benefit that described oxygen control device is by spiral cooling water pipe 8 and electrically heated rod 18, regulate the temperature of liquid lead or liquid lead bismuth alloy, control the dissolving in liquid lead or liquid lead bismuth alloy of the solid oxide lead and precipitation, and then regulate the oxygen concentration in liquid lead or liquid lead bismuth alloy.Described oxygen control device controls technology based on solid oxygen concentration, and compared to traditional gaseous oxygen concentration control mode, this device has feature efficient, quick, cleaning；Compared to conventional solid oxygen concentration control mode, there is flexible operating scheme, be prone to processing and the feature assembled.
Accompanying drawing explanation
The schematic diagram of Fig. 1 oxygen control device of the present invention；During heating: temperature T2>T1,Oxygen concentration CO3>CO2>CO1；During cooling: temperature T2<T1, oxygen concentration CO3<CO2<CO1。
Fig. 2 oxygen control installation drawing of the present invention.
Fig. 3 mass exchanger structural representation.
Fig. 4 mass exchanger decomposing schematic representation.
Fig. 5 particles of lead oxide container sectional view.
Fig. 6 electrically heated rod protective cover sectional view.
Fig. 7 particles of lead oxide modular construction schematic diagram.
Number in the figure is respectively as follows: 1-mass exchanger；2-drives pump；3-the first oxygen sensor interface；4-heat exchanger；5-heat exchanger coolant outlet；6-heat exchanger cooling water inlet；7-the first electrically operated valve；8-spiral cooling water pipe；9-spiral cooling pipe inlet；10-spiral cooling pipe outlet；11-heater；12-the second flange；13-hollow pipe；14-particles of lead oxide container；15-fixes filter screen；16-spring；17-sliding screen；18-electrically heated rod；19-electrically heated rod protective cover；20-particles of lead oxide；21-nut；22-particles of lead oxide assembly；23-annular lead net or annular bismuth net or annular lead bismuth alloy net；24-the first flange；25-the second oxygen sensor interface；26-the second electrically operated valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The design of 1 oxygen control device
Oxygen control device is designed to bypath system so that when liquid lead or liquid lead bismuth alloy circuit system are run, it is possible to installation and removal mass exchanger 1, stop without by circuit system；When needs regulate and control liquid lead or liquid lead bismuth alloy in circuit system, by opening the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device can be enabled simultaneously；When need not regulate and control oxygen concentration, close the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device is isolated.
The installation site of bypath system with drive pump 2 side by side, liquid lead or liquid lead bismuth alloy by drive pump 2 downstream into bypath system, return to circuit system from the upstream driving pump 2.
Described oxygen control device includes: drive 2, two oxygen sensor interfaces of pump, two electrically operated valves, mass exchanger 1, spiral cooling water pipe the 8, first flange 24, heat exchanger 4, heater 11 and pipeline；Two oxygen sensor interface respectively the first oxygen sensor interface 3 and the second oxygen sensor interfaces 25；Two electrically operated valve respectively the first electrically operated valve 7 and the second electrically operated valves 26；
Described oxygen control device, along the downstream driving pump 2, is connected with the first electrically operated valve 7, mass exchanger the 1, first flange 24, heat exchanger 4, heater the 11, second electrically operated valve 26 in turn by the mode of flange or welding on pipeline, forms bypath system；
The pipeline of the first electrically operated valve 7 upstream leaves the first oxygen sensor interface 3, the pipeline in the second electrically operated valve 26 downstream leaves the second oxygen sensor interface 25；First oxygen sensor interface 3 and the second oxygen sensor interface 25 install oxygen sensor for the upstream and downstream at oxygen control device；
Mass exchanger 1 is provided with spiral cooling tube 8, the upstream and downstream of spiral cooling tube 8 respectively spiral coolant outlet 10 and spiral cooling water inlet 9；
In the upstream and downstream of heat exchanger 4, it is respectively equipped with heat exchanger coolant outlet 5 and heat exchanger cooling water inlet 6.
Wherein, mass exchanger 1: provide mass exchange medium, built-in particles of lead oxide 20 and can flow through and carries out mass exchange between liquid lead or the liquid lead bismuth alloy on its surface；Drive pump 2: itself be liquid lead or the power source of liquid lead bismuth alloy circuit system, be used for here providing power for oxygen control device, it is not necessary to be additionally oxygen control device design motivation source simultaneously；First oxygen sensor interface 3 and the second oxygen sensor interface 25: can install oxygen sensor at the upstream and downstream of oxygen control device respectively, monitors the oxygen concentration in the liquid lead flowing in and out oxygen control device or liquid lead bismuth alloy in real time；Heat exchanger 4: when electrically heated rod 18 built-in in mass exchanger 1 is opened, need startup heat exchanger 4 simultaneously, liquid lead or liquid lead bismuth alloy are suitably lowered the temperature, with the liquid lead in loop or liquid lead bismuth alloy excessive temperature differentials when avoiding liquid lead or liquid lead bismuth alloy to enter circuit system, produce bigger thermal stress；First electrically operated valve 7 and the second electrically operated valve 26: control whether oxygen control device enables and liquid lead in bypath system or liquid lead bismuth alloy flow size, in necessary situation, can make oxygen control device and liquid lead or the isolation of liquid lead bismuth alloy circuit system；Spiral cooling water pipe 8, can reduce the temperature of the liquid lead flowing through mass exchanger or liquid lead bismuth alloy during unlatching, thus reducing oxygen saturated concentration wherein；If oxygen concentration is higher, the oxygen in liquid lead or liquid lead bismuth alloy can be made, precipitate out with the form of lead oxide, thus the oxygen concentration reduced in liquid lead or liquid lead bismuth alloy；Heater 11: coordinate spiral cooling water pipe 8 to use, compensates owing to cooling down the variations in temperature of liquid lead or liquid lead bismuth alloy in the bypath system caused.
When enabling electrically heated rod 18 built-in in mass exchanger 1, it is necessary to coordinate heat exchanger 4 to use, it is to avoid the temperature flowing into the liquid lead in circuit system or liquid lead bismuth alloy is too high, and can not use with spiral cooling water pipe 8 or heater 11 simultaneously；When enabling spiral cooling water pipe 8, it is necessary to coordinate heater 11 to use, it is to avoid the temperature flowing into the liquid lead in circuit system or liquid lead bismuth alloy is too low, and can not use with electrically heated rod 18 or heat exchanger 4 simultaneously.
The design of 2 mass exchanger
Mass exchanger 1 is the core of oxygen control device.Its main effect is to contain solid oxide lead granule, form a porous media being made up of particles of lead oxide, ensure that liquid lead or the liquid lead bismuth alloy of certain flow flow therethrough, and there is mass exchange (dissolve or precipitate out) with particles of lead oxide surface, thus increasing or reducing the oxygen concentration in liquid lead or liquid lead bismuth alloy.
Described mass exchanger 1 includes the second flange 12, hollow pipe 13, particles of lead oxide container 14, fixing filter screen 15, spring 16, sliding screen 17, electrically heated rod 18, electrically heated rod protective cover 19, nut 21 particles of lead oxide assembly 22；Particles of lead oxide assembly 22 is made up of the plumbous net of annular or annular bismuth net or annular lead bismuth alloy net 23 and particles of lead oxide 20, the plumbous net of described annular or annular bismuth net or annular lead bismuth alloy net 23 are a cross section is the annular groove of concave, and in groove, close-packed arrays has particles of lead oxide 20；
Second flange 12 is welded with one end of hollow pipe 13, makes hollow pipe 13 dock intact with the hole in the middle of the second flange 12, then fixing filter screen 15 is welded on hollow pipe 13；
Power line by electrically heated rod 18, draw through hollow pipe 13 and by the hole in the middle of the second flange 12, and the other end of electrically heated rod 18 with hollow pipe 13 is welded, here welding to ensure sealing, can not there is weld seam, in order to avoid liquid lead or liquid lead bismuth alloy flow into hollow pipe 13 soaks the power line of electrically heated rod 18；Then again the A end of electrically heated rod protective cover 19 is welded with electrically heated rod 18；
Spring 16, sliding screen 17 and some particles of lead oxide assemblies 22 on overlapping successively on electrically heated rod protective cover 19; the outside dimension of spring 16 is identical with the outside dimension of fixing filter screen 15 and sliding screen 17; the one end making spring 16 is fixed filter screen 15 and is blocked, and the other end contacts with sliding screen 17；The last outside that particles of lead oxide container 14 covers on electrically heated rod protective cover 19 again, and by the B end of electrically heated rod protective cover 19 centre bore through particles of lead oxide container 14B end, is finally undertaken tightening fixing by electric heater frost protection cover 19B end and nut 21 by screw thread.Table 1 is feature and the effect of each parts in mass exchanger 1.
Table 1: the feature of each parts and effect in mass exchanger 1
3 methods carrying out oxygen concentration control utilizing oxygen control device
(1) when the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is lower than default oxygen concentration, open the first electrically operated valve 7 and the second electrically operated valve 26, start oxygen control device, a part of liquid lead or liquid lead bismuth enter bypath system, and flow through mass exchanger 1, open electrically heated rod 18, the accelerated oxidation lead granule 20 dissolving in liquid lead or liquid lead bismuth alloy, the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy is made to be promoted, oxygen concentration get a promotion after liquid lead or liquid lead bismuth alloy return in circuit system, the oxygen concentration in circuit system is made also to promote therewith；Need in this process with heat exchanger 4 with the use of, make the temperature of the liquid lead in bypath system or liquid lead bismuth alloy be unlikely to too high, cause bigger thermal stress, damage equipment；After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches default oxygen concentration, close the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device out of service；
When the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is higher than when presetting oxygen concentration, open the first electrically operated valve 7 and the second electrically operated valve 26, start oxygen control device, a part of liquid lead or liquid lead bismuth alloy enter bypath system, and flow through mass exchanger 1, open spiral cooling water pipe 8, reduce oxygen saturated concentration in liquid lead or liquid lead bismuth alloy, make the oxygen in liquid lead or liquid lead bismuth alloy, precipitate out near particles of lead oxide 20 with the form of lead oxide or surface, and then make the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy reduce；Liquid lead or liquid lead bismuth alloy containing relatively low oxygen concentration return in circuit system, make the oxygen concentration in circuit system also decrease；This process needs to coordinate spiral cooling water pipe 8 to use, and compensates owing to cooling down the variations in temperature of liquid lead or liquid lead bismuth alloy in the bypath system caused.After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches and drops to default oxygen concentration, close the first electrically operated valve 7 and the second electrically operated valve 26, oxygen control device out of service.
Claims (10)
1. the oxygen control device for liquid lead or liquid lead bismuth alloy circuit system, it is characterized in that, described oxygen control device includes: drive pump (2), two oxygen sensor interfaces, two electrically operated valves, mass exchanger (1), spiral cooling water pipe (8), the first flange (24), heat exchanger (4), heater (11) and pipeline；Two oxygen sensor interface respectively the first oxygen sensor interfaces (3) and the second oxygen sensor interface (25)；Two electrically operated valve respectively the first electrically operated valves (7) and the second electrically operated valve (26)；
Described oxygen control device, along the downstream driving pump (2), pipeline is connected with the first electrically operated valve (7), mass exchanger (1), the first flange (24), heat exchanger (4), heater (11), the second electrically operated valve (26) in turn by the mode of flange or welding, forms bypath system；
The pipeline of the first electrically operated valve (7) upstream leaves the first oxygen sensor interface (3), the pipeline in the second electrically operated valve (26) downstream leaves the second oxygen sensor interface (25)；
Mass exchanger (1) is provided with spiral cooling tube (8), the upstream and downstream of spiral cooling tube (8) respectively spiral coolant outlet (10) and spiral cooling water inlet (9)；
In the upstream and downstream of heat exchanger (4), it is respectively equipped with heat exchanger coolant outlet (5) and heat exchanger cooling water inlet (6).
2. oxygen control device according to claim 1; it is characterized in that, described mass exchanger (1) includes the second flange (12), hollow pipe (13), particles of lead oxide container (14), fixing filter screen (15), spring (16), sliding screen (17), electrically heated rod (18), electrically heated rod protective cover (19), nut (21) and particles of lead oxide assembly (22)；
One end of second flange (12) with hollow pipe (13) is welded, make hollow pipe (13) dock intact with the hole in the middle of the second flange (12), then fixing filter screen (15) is welded on hollow pipe (13)；
Power line by electrically heated rod (18); draw through hollow pipe (13) and by the hole in the middle of the second flange (12); and the other end of electrically heated rod (18) with hollow pipe (13) is welded, then again the A end of electrically heated rod protective cover (19) is welded with electrically heated rod (18)；
Electrically heated rod protective cover (19) puts spring (16), sliding screen (17) and particles of lead oxide assembly (22) successively; the outside dimension of spring (16) is identical with the outside dimension of fixing filter screen (15) and sliding screen (17); the one end making spring (16) is fixed filter screen (15) and is blocked, and the other end contacts with sliding screen (17)；The last outside that particles of lead oxide container (14) is covered on electrically heated rod protective cover (19) again; and by centre bore through particles of lead oxide container (14) B end of the B end of electrically heated rod protective cover (19), finally the B end of electric heater frost protection cover (19) and nut (21) are undertaken tightening fixing by screw thread.
3. oxygen control device according to claim 2, it is characterized in that, by being undertaken sealing fastening by the first flange (24) and the second flange (12) in mass exchanger (1), mass exchanger (1) is made to be fixed on oxygen control device.
4. oxygen control device according to claim 2, it is characterised in that described particles of lead oxide assembly (22) is made up of the plumbous net of annular or annular bismuth net or annular lead bismuth alloy net (23) and particles of lead oxide (20).
5. oxygen control device according to claim 4, it is characterized in that, the plumbous net of described annular or annular bismuth net or annular lead bismuth alloy net (23) are a cross section is the annular groove of concave, and in groove, close-packed arrays has particles of lead oxide (20).
6. oxygen control device according to claim 2, it is characterised in that described fixing filter screen (15) and sliding screen (17) are annular plate, which is provided with the aperture that diameter is 2mm.
7. oxygen control device according to claim 2, it is characterised in that described particles of lead oxide container (14) A end opening; B end has the end; bottom central aperture, can make the threaded rod of electrically heated rod protective cover (19) insert, and bottom is formed around the aperture that diameter is 2mm.
8. the method that the oxygen control device that a kind utilizes described in any one of claim 1-7 carries out oxygen concentration control, it is characterized in that, when the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is lower than default oxygen concentration, open the first electrically operated valve (7) and the second electrically operated valve (26), start oxygen control device, a part of liquid lead or liquid lead bismuth alloy enter bypath system, and flow through mass exchanger (1)；Open electrically heated rod (18), accelerated oxidation lead granule (20) dissolving in liquid lead or liquid lead bismuth alloy, the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy is made to be promoted, oxygen concentration get a promotion after liquid lead or liquid lead bismuth alloy return in circuit system, make the oxygen concentration in circuit system also promote therewith；After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches default oxygen concentration, close the first electrically operated valve (7) and the second electrically operated valve (26), oxygen control device out of service；
When the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system is higher than when presetting oxygen concentration, open the first electrically operated valve (7) and the second electrically operated valve (26), start oxygen control device, a part of liquid lead or liquid lead bismuth alloy enter bypath system, and flow through mass exchanger (1)；Open spiral cooling water pipe (8), reduce oxygen saturated concentration in liquid lead or liquid lead bismuth alloy, make the oxygen in liquid lead or liquid lead bismuth alloy, precipitate out on the vicinity of particles of lead oxide (20) or surface with the form of lead oxide, and then make the liquid lead in bypath system or the oxygen concentration in liquid lead bismuth alloy reduce；Liquid lead or liquid lead bismuth alloy containing relatively low oxygen concentration return in circuit system, make the oxygen concentration in circuit system also decrease；After the oxygen concentration in liquid lead or liquid lead bismuth alloy circuit system reaches and drops to default oxygen concentration, close the first electrically operated valve (7) and the second electrically operated valve (26), oxygen control device out of service.
9. the using method of oxygen control device according to claim 8, it is characterised in that when electrically heated rod (18) built-in in mass exchanger (1) is opened, it is necessary to simultaneously start heat exchanger (4).
10. the using method of oxygen control device according to claim 8, it is characterised in that when opening spiral cooling water pipe (8), it is necessary to simultaneously start heater (11).
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| CN201610076804.9A CN105739552B (en) | 2016-02-03 | 2016-02-03 | For liquid lead or the oxygen control devices and methods therefor of liquid lead bismuth alloy circuit system |
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| CN201610076804.9A CN105739552B (en) | 2016-02-03 | 2016-02-03 | For liquid lead or the oxygen control devices and methods therefor of liquid lead bismuth alloy circuit system |
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| CN106601314A (en) * | 2016-12-30 | 2017-04-26 | 中国科学院合肥物质科学研究院 | Oxygen control system and oxygen control method for lead-based reactor coolant |
| CN106774481A (en) * | 2016-12-12 | 2017-05-31 | 中广核研究院有限公司 | The apparatus and system of oxygen concentration in a kind of control liquid LBE/Pb cooling agents |
| CN108761022A (en) * | 2018-05-29 | 2018-11-06 | 中广核研究院有限公司 | A kind of liquid lead bismuth alloy hot-working hydraulic characteristic and etching characteristic experimental system |
| CN111881631A (en) * | 2020-07-22 | 2020-11-03 | 西安交通大学 | Oxygen concentration diffusion numerical simulation method in lead-cooled fast reactor oxygen control process |
| CN112562792A (en) * | 2020-12-04 | 2021-03-26 | 中国科学院金属研究所 | Method for calculating oxygen concentration required for stable existence of metal in liquid lead |
| CN113514342A (en) * | 2021-04-01 | 2021-10-19 | 武汉工程大学 | Creep-fatigue testing device for metal material in high-temperature liquid metal environment |
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| CN114864120A (en) * | 2022-04-24 | 2022-08-05 | 中国原子能科学研究院 | Oxygen content adjusting module and reaction system |
| CN114898903A (en) * | 2022-04-24 | 2022-08-12 | 中国原子能科学研究院 | Oxygen content regulating loop and reaction system |
| CN115331847A (en) * | 2022-09-09 | 2022-11-11 | 华北电力大学 | Liquid lead bismuth solid oxygen control oxygen ion exchanger |
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| CN114898903A (en) * | 2022-04-24 | 2022-08-12 | 中国原子能科学研究院 | Oxygen content regulating loop and reaction system |
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| CN115331847A (en) * | 2022-09-09 | 2022-11-11 | 华北电力大学 | Liquid lead bismuth solid oxygen control oxygen ion exchanger |
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