CN102254577A - Liquid sodium metal thermohydraulic experimental loop system and using method thereof - Google Patents
Liquid sodium metal thermohydraulic experimental loop system and using method thereof Download PDFInfo
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Abstract
The invention discloses a liquid sodium metal thermohydraulic experimental loop system. The loop system comprises a sodium filling system, a loop body, a vacuum system, an argon system and a glove box, wherein the sodium filling system comprises a sodium fusion tank and a sodium filter; the loop body mainly comprises a sodium storage tank, a pump box, a main electromagnetic pump, an auxiliary electromagnetic pump, a preheater, a test section, a radiator, a calibration barrel and a cold trap; and the glove box mainly comprises a sodium sampling analysis device. By the system, sodium filling operation can be realized, liquid sodium metal heat transfer flow characteristics are analyzed, liquid sodium metal is purified on line, an electromagnetic flowmeter is calibrated, and multiple functions of sampling analysis, detection and the like of the liquid sodium metal are realized.
Description
Technical field
The present invention relates to a kind of liquid metal sodium thermal-hydraulic experiment circuit system, belong to Engineering Thermophysics and energy utilization ambit.
Background technology
Nuclear energy has occupied more and more important position at world today's energy field, and along with the development of nuclear energy, how to utilize limited uranium resource fully, and effectively the process nuclear waste material has caused people's attention day by day.Effective outlet that the cold fast neutron reactor of sodium addresses the above problem just at present.Though the sodium as the sodium-cooled fast reactor cooling medium has good heat conductivility and flow characteristics, because its active chemical property, feasible research for its thermal-hydraulic performance has very big difficulty.For the design-build of fast reactor and the safety analysis of stack operation soon, the research of the hot-working hydraulic characteristic of liquid metal sodium is absolutely necessary again.Therefore must construction can finish the experimental provision that the liquid metal sodium hot-working hydraulic characteristic is analyzed and researched.
For example, Chinese patent CN201138577 provides a kind of fill-drain syctem of sodium-cooled fast reactor one loop sodium, and it comprises that the outlet of storage sodium jar is connected an electromagnetic pump outlet and a circuit communication with the electromagnetic pump inlet; One loop is connected with storage sodium jar inlet; Storage sodium jar, mortejus are connected with argon system respectively, and storage sodium jar inlet gets the mortejus outlet with the system lowest part of being positioned at and is communicated with, and the mortejus inlet is communicated with the pipeline of system's lowest part.This security of system is reliable, and is simple in structure, can sodium discharging in equipment and the pipeline is clean.In addition, Chinese patent CN201111964 provides a kind of in-line purification system of sodium-cooled fast reactor secondary sodium, and its cold-trap links to each other with secondary circuit by a regenerator.This system architecture is simple, and volume is little, handling safety.More than sodium loop system in two patents just fill row or purification function for what realize sodium, simple in structure, can not be as the experimentize loop of research of liquid towards sodium metal thermal-hydraulic performance.
And for example, Chinese patent CN101807441A provides a kind of high-temperature sodium thermal convection test loop to comprise primary heat transport system, storage sodium jar, advance sodium row sodium system, blanketing gas purifies and vacuum system, sampling cabinet and temperature control system, it can discharge the higher sodium of impurity content in the loop, again can the higher new sodium of can purity; Not only keep the impermeability in loop but also make that gas phase test space operating walk way is unified unimpeded, can carry out the corrosion test of sodium and sodium vapor simultaneously; Sampling cabinet can be finished the loading or unloading operation of sample all the time and not be subjected to air pollution under argon shield atmosphere.But, this loop mainly is the corrosive property after impurity enters in order to test sodium and to move under hot environment, for flow, physical quantitys such as pressure lack control corresponding and detection means, can't finish the analysis and research for the hot-working hydraulic characteristic of liquid metal sodium.
Summary of the invention
Therefore, the invention provides a kind of liquid metal sodium thermal-hydraulic experiment circuit system,, realize the experimental study of liquid towards sodium metal hot-working hydraulic characteristic to remedy the deficiency of above-mentioned technology.
This circuit system comprises the filling sodium system, loop body, vacuum system, five parts of argon system and glove box.Wherein irritate sodium system and mainly comprise molten sodium jar, sodium filtrator; The loop body mainly comprises storage sodium jar, pump box, master's (assisting) electromagnetic pump, primary heater, test section, heating radiator, verification tube, cold-trap; Vacuum system mainly comprises vacuum pump and solenoid valve; Argon system mainly comprises argon bottle, argon gas filtrator; Glove box mainly comprises sodium sample examination device.Return all adopts 304 stainless steel pipes, and gas circuit is arranged 14 on vacuum diaphragm valve, and wherein 6 control argon gas move towards, and 3 is vent valve, 1 control vacuum loop, and 3 is the tensimeter trimmer valve; The liquid metal sodium runner is arranged 13 sodium valves, two electromagnetic flowmeters.
The present invention specifically provides a kind of liquid metal sodium thermal-hydraulic experiment circuit system, and this circuit system comprises irritates sodium system, loop body, vacuum system, argon system and glove box; Wherein irritate sodium system and comprise molten sodium jar, sodium filtrator; The loop body mainly comprises storage sodium jar, pump box, main electromagnetic pump, auxilliary electromagnetic pump, primary heater, test section, heating radiator, verification tube and cold-trap; Vacuum system comprises vacuum pump and solenoid valve; Argon system comprises argon bottle and argon gas filtrator; Glove box mainly comprises sodium sample examination device.
The molten sodium jar of described filling sodium system is connected with the sodium filtrator, connect storage sodium jar behind the filtrator, storage sodium jar is connected with pump box, pump box is connected with main electromagnetic pump, and pump box is connected with auxilliary electromagnetic pump, and major-minor electromagnetic pump is connected with primary heater, pump box and primary heater are connected to form the pump bypass, primary heater connects test section, and test section is connected with heating radiator, and heating radiator is connected with pump box; Have branch road before the primary heater and be connected with cold-trap, the cold-trap outlet is connected with pump box, and cold-trap row sodium mouth is connected with storage sodium jar; The road of paying wages in addition before the primary heater is connected with the verification tube; Argon bottle is connected with the argon gas filtrator, and the argon gas filtrator is connected with molten sodium jar top, and molten sodium jar connects gas return path, glove box, verification tube, storage sodium jar and pump box; On the storage sodium jar vent valve is set, vent valve is set on the pump box, vent valve is set on the glove box, verification tube top is connected with vacuum pump; Glove box is connected with the cold-trap outlet.
The molten sodium jar of described filling sodium system is connected with the sodium filtrator by the 13 sodium valves, connect storage sodium jar behind the filtrator, storage sodium jar is connected with pump box by first sodium valves, pump box is connected with main electromagnetic pump by second sodium valves, pump box is connected with auxilliary electromagnetic pump by the 4th sodium valves, major-minor electromagnetic pump is respectively by the 3rd sodium valves, the 5th sodium valves is connected with primary heater, pump box by the 6th sodium valves directly and primary heater be connected to form the pump bypass, primary heater connects test section by the 7th sodium valves, test section is connected with heating radiator by the 8th sodium valves, and heating radiator is connected with pump box; Have branch road before the primary heater and be connected with cold-trap by the tenth sodium valves, the cold-trap outlet is connected with pump box, and cold-trap row sodium mouth is connected with storage sodium jar by the 9th sodium valves; The road of paying wages in addition before the primary heater is connected with the verification tube by the 11 sodium valves; Argon bottle is connected with the argon gas filtrator, the argon gas filtrator is connected with molten sodium jar top by first air valve, molten sodium jar connects gas return path by second air valve, behind second air valve, be connected with glove box by the 3rd air valve, be connected with the verification tube by the 4th air valve, be connected with storage sodium jar, be connected with pump box by the 6th air valve by the 5th air valve; Connect the 7th air valve as vent valve on the storage sodium jar, connect the 8th air valve on the pump box as vent valve, connect the 11 air valve on the glove box and pass through the 9th air valve as vent valve verification tube top, the tenth air valve is connected with vacuum pump; Glove box is connected with the cold-trap outlet by the 12 sodium valves.
Using method based on described liquid metal sodium thermal-hydraulic experiment circuit system, should be that sodium is filled in the loop by irritating sodium system earlier before the loop start, the sodium of buying injects molten sodium jar after melting, open the 13 sodium valves, for molten sodium jar pressurization sodium is injected storage sodium jar through the sodium filtrator by gas circuit, close the 13 sodium valves then, finish the sodium process of filling;
Open first air valve, second air valve and the 5th air valve, by argon bottle, by the argon gas filtrator, molten sodium jar is the pressurization of storage sodium jar, opening the 8th air valve simultaneously is the pump box decompression, keeps pressure reduction between storage sodium jar and the pump box, opens first sodium valves, liquid metal sodium in the storage sodium jar is depressed in the pump box, finishes and close first sodium valves after pressing sodium;
Open second sodium valves or the 4th sodium valves, the 3rd sodium valves or the 5th sodium valves, the 11 sodium valves, close other sodium valves of closed loop, start main electromagnetic pump or auxilliary electromagnetic pump, liquid metal sodium is delivered to the verification tube, when the sodium liquid level reaches the requirement height, close electromagnetic pump and above each sodium valves;
Open the 4th air valve, keep verification tube pressure by the argon gas pressurization; Open the 8th air valve, keep pump box pressure by exhaust; Open electromagnetic pump bypass the 6th sodium valves successively, verification tube the 11 sodium valves that enters the mouth, this moment, liquid metal sodium entered pump box by the verification tube through electromagnetic flowmeter and electromagnetic pump bypass under pressure differential; Compare by liquid level decline rate in the verification tube and electromagnetic flowmeter reading, can finish staking-out work electromagnetic flowmeter.
Using method based on described liquid metal sodium thermal-hydraulic experiment circuit system, should be that sodium is filled in the loop by irritating sodium system earlier before the loop start, the sodium of buying injects molten sodium jar after melting, open the 13 sodium valves, for molten sodium jar pressurization sodium is injected storage sodium jar through the sodium filtrator by gas circuit, close the 13 sodium valves then, finish the sodium process of filling;
Open first air valve, second air valve and the 5th air valve, by argon bottle, by the argon gas filtrator, molten sodium jar is the pressurization of storage sodium jar, opening the 8th air valve simultaneously is the pump box decompression, keeps pressure reduction between storage sodium jar and the pump box, opens first sodium valves, liquid metal sodium in the storage sodium jar is depressed in the pump box, finishes and close first sodium valves after pressing sodium;
Before on-test, open each air valve, open second sodium valves or the 4th sodium valves, the 3rd sodium valves or the 5th sodium valves, the 7th sodium valves, the 8th sodium valves, the tenth sodium valves is controlled the aperture of the 6th sodium valves, confirm first sodium valves, the 9th sodium valves, the 11 sodium valves is closed, and starts main electromagnetic pump or auxilliary electromagnetic pump.At this moment, liquid metal sodium under main electromagnetic pump or auxilliary electromagnetic pump drive, by pump box through main electromagnetic pump or auxilliary electromagnetic pump, electromagnetic flowmeter, primary heater, test section, heating radiator is got back to pump box, finishes circulation.Simultaneously,, the electromagnetic pump bypass of part sodium through the 6th sodium valves place arranged, thus sodium flow in the control loop according to the aperture of the 6th sodium valves; Also have part sodium to conflux to heating radiator with major loop sodium then, play in-line purification effect liquid metal sodium in the loop through electromagnetic flowmeter, the tenth sodium valves and cold-trap.
This system's major function is as follows:
1, can enter storage sodium jar after filtering by irritating the sodium injection of sodium system with technical grade;
2, when test provides pressure differential that liquid metal sodium is depressed in the pump box by argon gas, and electromagnetic pump provides power to order about sodium to move in the loop then, by installing the analysis that different tests section and data acquisition system (DAS) realize liquid towards sodium metal heat exchange flow characteristics additional;
3, the cold-trap branch road can provide the liquid metal sodium in-line purification, keeps liquid metal sodium purity;
4, the verification tube can be realized the demarcation to electromagnetic flowmeter;
5, glove box can be realized sample analysis and the detection to liquid metal sodium in the loop.
Ruuning situation after building up by circuit system proves that above every function can well be finished in the loop, can realize that the liquid metal sodium hot-working hydraulic characteristic analyzes experimental study.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present invention;
Wherein: 1 is argon bottle; 2 is the argon gas filtrator; 3 are molten sodium jar; 4 is the sodium filtrator; 5 are storage sodium jar; 6 is pump box; 7 is cold-trap; 8 are the verification tube; 9 is test section; 10 is main electromagnetic pump; 11 is auxilliary electromagnetic pump; 12 is primary heater; 13 is heating radiator; 14 is glove box; 15 is vacuum pump; 1-1 is first air valve; 1-2 is second air valve; 1-3 is the 3rd air valve; 1-4 is the 4th air valve; 1-5 is the 5th air valve; 1-6 is the 6th air valve; 1-7 is the 7th air valve; 1-8 is the 8th air valve; 1-9 is the 9th air valve; 1-10 is the tenth air valve; 1-11 is the 11 air valve; 1-12 is the 12 air valve; 2-1 is first sodium valves; 2-2 is second sodium valves; 2-3 is the 3rd sodium valves; 2-4 is the 4th sodium valves; 2-5 is the 5th sodium valves; 2-6 is the 6th sodium valves; 2-7 is the 7th sodium valves; 2-8 is the 8th sodium valves; 2-9 is the 9th sodium valves; 2-10 is the tenth sodium valves; 2-11 is the 11 sodium valves; 2-12 is the 12 sodium valves; 2-13 is the 13 sodium valves; 3-1 is first electromagnetic flowmeter; 3-2 is second electromagnetic flowmeter.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are elaborated.
Irritating the molten sodium jar 3 of sodium system is connected with sodium filtrator 4 by the 13 sodium valves 2-13, connect storage sodium jar 5 behind the filtrator 4, storage sodium jar 5 is connected with pump box 6 by the first sodium valves 2-1, pump box 6 is connected with main electromagnetic pump 10 by the second sodium valves 2-2, pump box 6 is connected with auxilliary electromagnetic pump by the 4th sodium valves 2-4, major-minor electromagnetic pump is respectively by the 3rd sodium valves 2-3, the 5th sodium valves 2-5 is connected with primary heater 12, pump box 6 by the 6th sodium valves 2-6 directly and primary heater be connected to form the pump bypass, primary heater 12 connects test section 9 by the 7th sodium valves 2-7, test section 9 is connected with heating radiator 13 by the 8th sodium valves 2-8, and heating radiator 13 is connected with pump box.Have branch road before the primary heater 12 and be connected with cold-trap 7 by the tenth sodium valves 2-10, cold-trap 7 outlets are connected with pump box 6, and cold-trap 7 row's sodium mouths are connected with storage sodium jar 5 by the 9th sodium valves 2-9.The road of paying wages in addition before the primary heater 12 is connected with verification tube 8 by the 11 sodium valves 2-11.Argon bottle 1 is connected with argon gas filtrator 2, argon gas filtrator 2 is connected with molten sodium jar 3 tops by the first air valve 1-1, molten sodium jar 3 connects gas return path by the second air valve 1-2, behind the second air valve 1-2, be connected with glove box 14 by the 3rd air valve 1-3, be connected with verification tube 8 by the 4th air valve 1-4, be connected with storage sodium jar, be connected with pump box by the 6th air valve 1-6 by the 5th air valve 1-5.Meet the 7th air valve 1-7 as vent valve on the storage sodium jar 5, meet the 8th air valve 1-8 on the pump box 6 as vent valve, meet the 11 air valve 1-11 on the glove box 14 and pass through the 9th air valve 1-9 as vent valve verification tube top, the tenth air valve 1-10 is connected with vacuum pump 15.Glove box 14 is connected with the cold-trap outlet by the 12 sodium valves 2-12.
Three embodiment of the present invention are introduced in conjunction with Fig. 1 in this part, are respectively the demarcation of electromagnetic flowmeter, the sample analysis of test of liquid metal sodium hot-working hydraulic characteristic and liquid metal sodium.
In conjunction with Fig. 1, introduce first embodiment of the present invention, the demarcation of electromagnetic flowmeter.
By shown in Figure 1, should be that sodium is filled in the loop by irritating sodium system earlier before the loop start, the sodium of buying injects molten sodium jar 3 after melting, open the 13 sodium valves 2-13, for molten sodium jar 3 pressurizations sodium is injected storage sodium jar 5 through sodium filtrator 4 by gas circuit, close the 13 sodium valves 2-13 then, finish the sodium process of filling.
Open the first air valve 1-1, the second air valve 1-2, the 5th air valve 1-5 is by argon bottle 1, by argon gas filtrator 2, molten sodium jar 3 is 5 pressurizations of storage sodium jar, opening the 8th air valve 1-8 simultaneously is pump box 6 decompressions, keeps pressure reduction between storage sodium jar 5 and the pump box 6, opens the first sodium valves 2-1, liquid metal sodium in the storage sodium jar 5 is depressed in the pump box 6, finishes and close the first sodium valves 2-1 after pressing sodium.
Open the second sodium valves 2-2 (or the 4th sodium valves 2-4), the 3rd sodium valves 2-3 (or the 5th sodium valves 2-5), the 11 sodium valves 2-11, close other sodium valves of closed loop, start main (assisting) electromagnetic pump 10 (11), liquid metal sodium is delivered to verification tube 8, when the sodium liquid level reaches the requirement height, closes electromagnetic pump and above each sodium valves.
Open the 4th air valve 1-4, keep verification tube 8 pressure by the argon gas pressurization; Open the 8th air valve 1-8, keep pump box 6 pressure by exhaust.Open electromagnetic pump bypass the 6th sodium valves 2-6 successively, verification tube the 11 sodium valves 2-11 that enters the mouth, this moment, liquid metal sodium entered pump box 6 by verification tube 8 through electromagnetic flowmeter 3-2 and electromagnetic pump bypass under pressure differential.Compare by liquid level decline rate in the verification tube and electromagnetic flowmeter reading, can finish staking-out work electromagnetic flowmeter 3-2.
In conjunction with Fig. 1, introduce second embodiment of the present invention, the test of liquid metal sodium hot-working hydraulic characteristic.
This embodiment fills sodium and presses the sodium process with embodiment one.
Before on-test, open each air valve, open the second sodium valves 2-2 (or the 4th sodium valves 2-4), the 3rd sodium valves 2-3 (or the 5th sodium valves 2-5), the 7th sodium valves 2-7, the 8th sodium valves 2-8, the tenth sodium valves 2-10 controls the aperture of the 6th sodium valves 2-6, confirm the first sodium valves 2-1, the 9th sodium valves 2-9, the 11 sodium valves 2-11 closes, and starts electromagnetic pump 10 (11).At this moment, liquid metal sodium is being led under (assisting) electromagnetic pump 10 (11) drives, by pump box 6 through electromagnetic pump 10 (11), electromagnetic flowmeter 3-2, primary heater 12, test section 9, heating radiator 13 is got back to pump box 6, finishes circulation.Simultaneously,, the electromagnetic pump bypass of part sodium through the 6th sodium valves 2-6 place arranged, thus sodium flow in the control loop according to the aperture of the 6th sodium valves 2-6.Also have part sodium through electromagnetic flowmeter 3-1, the tenth sodium valves 2-10, cold-trap 7 confluxes to heating radiator with major loop sodium then, plays the in-line purification effect to liquid metal sodium in the loop.
More than be native system and carry out the liquid metal sodium hot-working hydraulic characteristic flow process in when test.By to the loop flow, the control of pressure can obtain the experiment condition that needs, by installing data acquisition system (DAS) additional for test section 9, can obtain the hot-working hydraulic characteristic parameter of liquid metal sodium, for the research of liquid metal sodium hot-working hydraulic characteristic provides reliable experimental.
In conjunction with Fig. 1, introduce the 3rd embodiment of the present invention, the sample analysis of liquid metal sodium.
This embodiment is before liquid metal sodium hot-working hydraulic characteristic test is carried out in the loop or carry out in the experimentation, so this step and embodiment two are similar.Difference is need be in the operational process of loop, needs control the 3rd air valve 1-3, and the 11 air valve 1-11 is that glove box 14 is regulated pressure, opens pressure differential that the 12 sodium valves 2-12 utilizes glove box and major loop and gets sodium from major loop and advance glove box 14.Glove box is hermetically sealed and use the argon gas covering protection, and it is accurate to guarantee when sodium is tested.
Use and move proof through system circuit, this loop can be finished the demarcation of electromagnetic flowmeter fully, the functions such as sample analysis of test of liquid metal sodium hot-working hydraulic characteristic and liquid metal sodium can provide scientific and reasonable experimental data for the research of liquid metal sodium hot-working hydraulic characteristic.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (5)
1. liquid metal sodium thermal-hydraulic experiment circuit system is characterized in that: this circuit system comprises irritates sodium system, loop body, vacuum system, argon system and glove box; Wherein irritate sodium system and comprise molten sodium jar, sodium filtrator; The loop body mainly comprises storage sodium jar, pump box, main electromagnetic pump, auxilliary electromagnetic pump, primary heater, test section, heating radiator, verification tube and cold-trap; Vacuum system comprises vacuum pump and solenoid valve; Argon system comprises argon bottle and argon gas filtrator; Glove box mainly comprises sodium sample examination device.
2. liquid metal sodium thermal-hydraulic experiment circuit system according to claim 1, it is characterized in that: the molten sodium jar of described filling sodium system is connected with the sodium filtrator, connect storage sodium jar behind the filtrator, storage sodium jar is connected with pump box, and pump box is connected with main electromagnetic pump, pump box is connected with auxilliary electromagnetic pump, major-minor electromagnetic pump is connected with primary heater, and pump box and primary heater are connected to form the pump bypass, and primary heater connects test section, test section is connected with heating radiator, and heating radiator is connected with pump box; Have branch road before the primary heater and be connected with cold-trap, the cold-trap outlet is connected with pump box, and cold-trap row sodium mouth is connected with storage sodium jar; The road of paying wages in addition before the primary heater is connected with the verification tube; Argon bottle is connected with the argon gas filtrator, and the argon gas filtrator is connected with molten sodium jar top, and molten sodium jar connects gas return path, glove box, verification tube, storage sodium jar and pump box; On the storage sodium jar vent valve is set, vent valve is set on the pump box, vent valve is set on the glove box, verification tube top is connected with vacuum pump; Glove box is connected with the cold-trap outlet.
3. as liquid metal sodium thermal-hydraulic experiment circuit system as described in the claim 2, it is characterized in that: the molten sodium jar of described filling sodium system is connected with the sodium filtrator by the 13 sodium valves, connect storage sodium jar behind the filtrator, storage sodium jar is connected with pump box by first sodium valves, pump box is connected with main electromagnetic pump by second sodium valves, pump box is connected with auxilliary electromagnetic pump by the 4th sodium valves, major-minor electromagnetic pump is respectively by the 3rd sodium valves, the 5th sodium valves is connected with primary heater, pump box by the 6th sodium valves directly and primary heater be connected to form the pump bypass, primary heater connects test section by the 7th sodium valves, and test section is connected with heating radiator by the 8th sodium valves, and heating radiator is connected with pump box; Have branch road before the primary heater and be connected with cold-trap by the tenth sodium valves, the cold-trap outlet is connected with pump box, and cold-trap row sodium mouth is connected with storage sodium jar by the 9th sodium valves; The road of paying wages in addition before the primary heater is connected with the verification tube by the 11 sodium valves; Argon bottle is connected with the argon gas filtrator, the argon gas filtrator is connected with molten sodium jar top by first air valve, molten sodium jar connects gas return path by second air valve, behind second air valve, be connected with glove box by the 3rd air valve, be connected with the verification tube by the 4th air valve, be connected with storage sodium jar, be connected with pump box by the 6th air valve by the 5th air valve; Connect the 7th air valve as vent valve on the storage sodium jar, connect the 8th air valve on the pump box as vent valve, connect the 11 air valve on the glove box and pass through the 9th air valve as vent valve verification tube top, the tenth air valve is connected with vacuum pump; Glove box is connected with the cold-trap outlet by the 12 sodium valves.
4. based on the using method of claim 1,2 or 3 described liquid metal sodium thermal-hydraulic experiment circuit systems, it is characterized in that:
Should be that sodium is filled in the loop by irritating sodium system earlier before the loop start, the sodium of purchase injects molten sodium jar after melting, open the 13 sodium valves, for molten sodium jar pressurization sodium is injected storage sodium jar through the sodium filtrator by gas circuit, closes the 13 sodium valves then, finishes the sodium process of filling;
Open first air valve, second air valve and the 5th air valve, by argon bottle, by the argon gas filtrator, molten sodium jar is the pressurization of storage sodium jar, opening the 8th air valve simultaneously is the pump box decompression, keeps pressure reduction between storage sodium jar and the pump box, opens first sodium valves, liquid metal sodium in the storage sodium jar is depressed in the pump box, finishes and close first sodium valves after pressing sodium;
Open second sodium valves or the 4th sodium valves, the 3rd sodium valves or the 5th sodium valves, the 11 sodium valves, close other sodium valves of closed loop, start main electromagnetic pump or auxilliary electromagnetic pump, liquid metal sodium is delivered to the verification tube, when the sodium liquid level reaches the requirement height, close electromagnetic pump and above each sodium valves;
Open the 4th air valve, keep verification tube pressure by the argon gas pressurization; Open the 8th air valve, keep pump box pressure by exhaust; Open electromagnetic pump bypass the 6th sodium valves successively, verification tube the 11 sodium valves that enters the mouth, this moment, liquid metal sodium entered pump box by the verification tube through electromagnetic flowmeter and electromagnetic pump bypass under pressure differential; Compare by liquid level decline rate in the verification tube and electromagnetic flowmeter reading, can finish staking-out work electromagnetic flowmeter.
5. based on the using method of claim 1,2 or 3 described liquid metal sodium thermal-hydraulic experiment circuit systems, it is characterized in that:
Should be that sodium is filled in the loop by irritating sodium system earlier before the loop start, the sodium of purchase injects molten sodium jar after melting, open the 13 sodium valves, for molten sodium jar pressurization sodium is injected storage sodium jar through the sodium filtrator by gas circuit, closes the 13 sodium valves then, finishes the sodium process of filling;
Open first air valve, second air valve and the 5th air valve, by argon bottle, by the argon gas filtrator, molten sodium jar is the pressurization of storage sodium jar, opening the 8th air valve simultaneously is the pump box decompression, keeps pressure reduction between storage sodium jar and the pump box, opens first sodium valves, liquid metal sodium in the storage sodium jar is depressed in the pump box, finishes and close first sodium valves after pressing sodium;
Before on-test, open each air valve, open second sodium valves or the 4th sodium valves, the 3rd sodium valves or the 5th sodium valves, the 7th sodium valves, the 8th sodium valves, the tenth sodium valves is controlled the aperture of the 6th sodium valves, confirm first sodium valves, the 9th sodium valves, the 11 sodium valves is closed, and starts main electromagnetic pump or auxilliary electromagnetic pump.At this moment, liquid metal sodium under main electromagnetic pump or auxilliary electromagnetic pump drive, by pump box through main electromagnetic pump or auxilliary electromagnetic pump, electromagnetic flowmeter, primary heater, test section, heating radiator is got back to pump box, finishes circulation.Simultaneously,, the electromagnetic pump bypass of part sodium through the 6th sodium valves place arranged, thus sodium flow in the control loop according to the aperture of the 6th sodium valves; Also have part sodium to conflux to heating radiator with major loop sodium then, play in-line purification effect liquid metal sodium in the loop through electromagnetic flowmeter, the tenth sodium valves and cold-trap.
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