CN107436106A - A kind of charging device and method of liquid metal high temperature pulsating heat pipe - Google Patents
A kind of charging device and method of liquid metal high temperature pulsating heat pipe Download PDFInfo
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- CN107436106A CN107436106A CN201710819443.7A CN201710819443A CN107436106A CN 107436106 A CN107436106 A CN 107436106A CN 201710819443 A CN201710819443 A CN 201710819443A CN 107436106 A CN107436106 A CN 107436106A
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- liquid metal
- heat pipe
- liquid
- pulsating heat
- high temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0283—Means for filling or sealing heat pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of charging device and liquid filling method of liquid metal high temperature pulsating heat pipe, charging device includes inert gas gas cylinder, glove box, pumped vacuum systems, liquid metal high temperature pulsating heat pipe, pulsating heat pipe heater and topping up pipe, wherein, glove box is seal case structure, there are the gloves of two sealed connections on the just preceding casing of glove box, there is gas-circulating system in glove box, at least one meausring apparatus, at least one liquid metal storage device, multichannel connecting tube, vacuum-pumping pipeline, charging line, at least one liquid line, at least one liquid line switch and vacuum valve, there are first interface and second interface on the casing of the glove box.The present invention can reach pulsating heat pipe precisely fill, fill working medium purity is high, filling process safely, fill the purpose of rear remaining working medium safe handling, pulsating heat pipe excellent performance.
Description
Technical field
The present invention relates to the manufacture field of high temperature pulsating heat pipe, is pulsed more particularly, to a kind of liquid metal high temperature hot
The charging device and method of pipe.
Background technology
Pulsating heat pipe (OHP) be that Akachi proposes in early 1990s it is a kind of it is new, efficient, available for small sky
Between, the heat transfer element under the conditions of high heat flux.Pulsating heat pipe is made up of the capillary bent, is filled with after being vacuumized in pipe appropriate
Working medium.During work, working medium is absorbed heat in fire end, expansion and boosting, flows to Exotherm end.Gas column cooling meat there, by
Existing pressure imbalance between pressure difference and adjacent pipe between both ends be present so that working medium is between fire end and release end of heat
Oscillation Flows, so as to realize the transmission of heat.Pulsating heat pipe of the operating temperature more than 500 DEG C is referred to as high temperature pulsating heat pipe.High temperature
For pulsating heat pipe using liquid metal as working medium, liquid metal has the good capacity of heat transmission, heat endurance and relatively low saturation
Vapour pressure, and there is the higher latent heat of vaporization at high temperature.Due to Na-K alloy has under normal temperature be liquid the characteristics of, therefore
Fusion process can be saved in heating process, starts heat pipe simpler.Therefore, Na-K alloy is the pulsation of liquid metal high temperature
One of ideal working substance of heat pipe.
Na-K alloy is liquid at normal temperatures, meets acid, carbon dioxide, moisture and water and vigorous reaction occurs, release hydrogen, stand
That is spontaneous combustion, can even explode sometimes, the also extremely easily oxidation, therefore the inert gas shielding in technical process in weak oxygen environment
It is particularly important.Because pulsating heat pipe internal diameter is smaller, working medium is influenceed finally to be separated into random point in capillary by surface tension
Cloth, spaced apart liquid plug and vent plug, so the inert gas being filled with is difficult to extract out, the difficulty filled is considerably increased, it is existing
Pulsating heat pipe and alkali metal high-temperature heat pipe methods for filling can not meet Na-K alloy high temperature pulsating heat pipe fill requirement.
The filling process of liquid metal high temperature pulsating heat pipe should be ensured that：The liquid metal being filled with has higher purity；
Pulsating heat pipe has very high vacuum before filling；The amount for being filled with Na-K alloy can be precisely controlled；Ensure after the completion of filling
Inert gas is not present in high temperature pulsating heat pipe；Because liquid metal is extremely active, also need to ensure the security of filling process.Liquid
The technique that fills of state metallic high temperature pulsating heat pipe belongs to pioneering, but in filling process, can use for reference alkali metal high-temperature heat pipe with
And Na-K alloy heat pipe fills technique, it is possible to provide the technique that fills of reference has four：
(1) the accurate filling equipment and method (Qu Wei, Duan Yanjun, application number of the high-temperature heat pipe of a small amount of alkali metal working medium are needed:
201110088089), this kind of method uses bypass structure, and after carrying out inert gas replacement in transparent chambers, working medium is put into inner cylinder
After be filled with pipeline and seal and vacuumize, heat and working medium be molten into liquid, liquid refrigerant enters high warm under noble gas impact
Pipe, noble gas in pipe is extracted out after heat pipe recovers normal temperature.The vacuum glove box that such a method uses belongs to open type, during packing
Working medium has small amounts, and Work piece sealing coupling process is related in operating process, and misoperation influences the sealing of pipeline.
(2) the non-oxidation method for filling and integration apparatus (Qu Wei, Ai Bangcheng, Yu Jijun, Xue Zhi of a kind of alkali metal working medium
Tiger, application number:201210378002.5), compared with method described in (1), such a method process tank is placed on the downside of glove box,
Simplify operating process.4 suction tracheaes are used inside glove box, it is not uniform enough that every pipe arranges air-breathing to two angular regions of process；
Built-in balance occupies the major part in glove box, and process tank wall structure is complex, not easy to assemble.
(3) a kind of solid-state working medium filling equipment of double process interface heat pipes and methods for filling (Qu Wei, Ai Bangcheng, Yu Jijun,
Xue Zhihu, application number:201410306757.3) principle, is filled with essentially identical in (2), using duplexing skill Interface design, main work
Skill mouth is both to vacuumize interface and inert gas access interface, is the mouth that is filled with of working medium again, and secondary technique mouth is both to vacuumize interface,
It is inert gas access interface again, increases exhaust passage and be twice.Such a square law device is complex, and technique top tank structure has work
Matter remains, and the cleaning process after the completion of topping up is also more complicated.
(4) Na-K alloy heat pipe fills technique, for example, document " Wang Wei Na-K alloy moderate temperature heat pipe experimental study [D]
Beijing University of Technology, 2012. " the middle Na-K alloy liquid filling methods introduced, is fitted into alloy cylinder, even after Na-K alloy is handled well
Whole system is connect, heat pipe is filled with inert gas pressure after vacuumizing.Such a method requires higher to Na-K alloy cylinder installation process.
Topping up is carried out to Na-K alloy high temperature pulsating heat pipe using such a method, it is impossible to which inert gas can be taken out after the completion of guarantee fills
Go out pulsating heat pipe.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, there is provided a kind of liquid metal high temperature pulsating heat pipe
Charging device and method, reach pulsating heat pipe precisely fill, fill working medium purity is high, filling process safely, fill rear remaining work
The purpose of matter safe handling, pulsating heat pipe excellent performance.
To achieve the above object, technical scheme is as follows：
A kind of liquid filling method of liquid metal high temperature pulsating heat pipe, it is characterised in that comprise the following steps：
S1：With glove box closing liquid metal storage device, meausring apparatus, vacuum-pumping pipeline, charging line and liquid line
Road；
S2：The liquid line and vacuum-pumping pipeline closed in glove box, circulation is carried out to glove box and removes oxygen and water, is made
Water, oxygen content in glove box are less than or equal to 0.1ppm；
S3：Heat liquid metal high temperature pulsating heat pipe to required temperature, baking and be adsorbed in the incoagulable gas on surface；
S4：Purified in glove box and configure required liquid metal, and the liquid metal configured is positioned over liquid
In metal storage device；
S5：Liquid line is connected liquid metal storage device, and liquid line is extend into liquid metal storage device
Liquid level below；
S6：The coagulation step S5 liquid metal being connected with the liquid metal storage device of liquid line；
S7：Liquid metal high temperature pulsating heat pipe, charging line and liquid line are vacuumized, make high temperature pulsating heat pipe
Interior vacuum reaches 10-3Pa, and continue two hours, after the completion of close vacuum-pumping pipeline and liquid line；
S8：Liquid metal in melting liquid metal storage device, and liquid line is connected liquid metal storage device,
And extend into liquid line below the liquid of liquid metal storage device, liquid metal storage device is placed in meausring apparatus
On, liquid line is opened, liquid metal reaches because pressure difference is inhaled into liquid metal high temperature pulsating heat pipe when meausring apparatus is shown
To required liquid metal quality when, closing liquid pipeline；
S9：The topping up pipe wrench for the liquid metal high temperature pulsating heat pipe upper end for completing topping up is broken, protected with inert gas
The cold welding opposite heat tube of shield is sealed；
S10：Safe handling is carried out to the charging device of liquid metal high temperature pulsating heat pipe.
Further, the working medium in the liquid metal high temperature pulsating heat pipe is that (mass fraction of potassium is Na-K alloy
Or metallic potassium, or metal caesium, or metal rubidium 46%-89%), or metallic sodium,.
Further, in step S6, when the freezing point of liquid metal is higher than room temperature, liquid metal is solidified using liquid nitrogen.
A kind of charging device of liquid metal high temperature pulsating heat pipe, it is characterised in that including inert gas gas cylinder, gloves
Case, pumped vacuum systems, liquid metal high temperature pulsating heat pipe, pulsating heat pipe heater and topping up pipe, wherein, the glove box is close
Body structure is sealed, there are two gloves being tightly connected on the just preceding casing of the glove box, has gas circulation in the glove box
System, at least one meausring apparatus, at least one liquid metal storage device, multichannel connecting tube, vacuum-pumping pipeline, topping up pipe
Road, at least one liquid line, at least one liquid line switchs and vacuum valve, has first interface on the casing of the glove box
And second interface；
In the glove box, the vacuum-pumping pipeline, the charging line and at least one liquid line lead to
Cross the multichannel connecting tube to link together, the vacuum-pumping pipeline is also connected to the first interface, the charging line
The second interface is also connected to, each each liquid metal storage device of liquid line connection, the liquid gold
Category storage device is used for containing being placed in each liquid to be charged into the liquid metal of liquid metal high temperature pulsating heat pipe, the meausring apparatus
The lower section of state metal storage device, filled for weighing into every kind of liquid metal in the liquid metal high temperature pulsating heat pipe
Quality, the vacuum valve are arranged in the vacuum-pumping pipeline, and the liquid line switch is arranged on each liquid line；
The inert gas gas cylinder is tightly connected with the glove box；
The glove box is connected by the first interface with pumped vacuum systems sealing；
The glove box is connected by the second interface with the topping up seal of tube；
The topping up pipe is connected with the liquid metal high temperature pulsating heat pipe；
The liquid metal high temperature pulsating heat pipe is heated by the pulsating heat pipe heater.
Further, also have outside glove box between the pumped vacuum systems and the liquid metal high temperature pulsating heat pipe
At least one vacuum-pumping pipeline.
Further, the working medium being filled with the liquid metal high temperature pulsating heat pipe is the Na-K alloy (mass fraction of potassium
For 46%-89%), or metallic sodium, or lithium metal, or metal caesium, or metal rubidium.
Further, the pumped vacuum systems includes vacuum meter, cold-trap, molecule pump assembly and cooling bath, the vacuum
Meter, cold-trap, molecule pump assembly are sequentially connected, and the cooling bath is connected on the molecule pump assembly, the vacuum meter and institute
First interface sealing is stated to be connected.
Further, the vacuum-pumping pipeline is connected by vacuum flange with first interface sealing；It is described to vacuumize
System is connected by vacuum flange with first interface sealing；The charging line passes through vacuum flange and the second interface
Sealing is connected；The topping up pipe is connected by vacuum flange with second interface sealing.
Further, the pulsating heat pipe heater is plough groove type heating plate or high frequency coil.
Further, the liquid metal high temperature pulsating heat pipe is tubular type pulsating heat pipe or plate type pulsating heat pipe.
It can be seen from the above technical proposal that the glove box of the invention by setting closure, under inert gas shielding
Configure liquid metal working medium, it is ensured that liquid metal is not contaminated, and by ensureing the inert-gas environment in glove box, is made more in the short time
Secondary fill need not frequently dismantle pipe-line system in glove box, by using meausring apparatus, eliminate as much as work in filling process
The error of matter quality, carry out pipeline by using vacuum flange and be connected with equipment, make that single unit system is quick detachable, good airproof performance, it is logical
Cross and pulsating heat pipe, liquid line and charging line are vacuumized before topping up, ensure that before topping up and heat of being pulsed after topping up
Guan Zhongjun solves the problems, such as that current techniques can not ensure that the gas after topping up in pulsating heat pipe can not be extracted out without gaseous impurity,
Make filling process safer and the performance of liquid metal high temperature pulsating heat pipe is more excellent.Therefore, the present invention has distinguishing feature.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the charging device of liquid metal high temperature pulsating heat pipe of the present invention；
Fig. 2 is a kind of flow chart of the liquid filling method of liquid metal high temperature pulsating heat pipe of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in further detail.
It should be noted that in following embodiments, when embodiments of the present invention are described in detail, in order to clear
Ground represents the structure of the present invention in order to illustrate, special that structure in accompanying drawing is not drawn according to general proportion, and has carried out part
Amplification, deformation and simplified processing, therefore, should avoid being understood in this, as limitation of the invention.
In embodiment of the invention below, referring to Fig. 1, Fig. 1 is a kind of liquid metal high temperature of the present invention
The structural representation of the charging device of pulsating heat pipe.As shown in figure 1, a kind of charging device of liquid metal high temperature pulsating heat pipe,
Including inert gas gas cylinder 1, glove box 2, pumped vacuum systems 4, liquid metal high temperature pulsating heat pipe 5, the and of pulsating heat pipe heater 6
Topping up pipe 3, wherein, glove box 2 is seal case structure, there is the gloves 21 of two sealed connections on the just preceding casing of glove box 2,
There are gas-circulating system, at least one meausring apparatus, at least one liquid metal storage device, multichannel connection in glove box 2
Pipe, vacuum-pumping pipeline, charging line, at least one liquid line, at least one liquid line switch and vacuum valve, the gloves
There are first interface 30 and second interface 31 on the casing of case.
The working medium being filled with liquid metal high temperature pulsating heat pipe can be that (mass fraction of potassium is 46%- to Na-K alloy
, or metallic sodium, or metallic potassium, or metal caesium, or metal rubidium 89%).
By taking Na-K alloy working medium as an example, Na-K alloy is liquid in normal temperature, it is not necessary to the process by solid melts for liquid,
Therefore, make filling process simpler.Referring to Fig. 1, also there is liquid nitrogen spray gun, precision balance 24, Na-K alloy in glove box
Tank 23, threeway 27, liquid line 26, liquid line switch 25, vacuum-pumping pipeline 28, charging line 22 and vacuum valve 29, gloves
There are first interface 30 and second interface 31 on the casing of case 2；Threeway 27 has three ports, respectively port 1, port two
33 and port 3 34.Contain the Na-K alloy liquid configured in Na-K alloy tank 23 to be placed on precision balance 24, liquid line
26 one end is stretched under the Na-K alloy liquid levels in Na-K alloy tank 23, and the other end passes through cutting ferrule pipe and the port of threeway 27
One 32 are connected, and liquid line switch 25 is arranged on liquid line 26；One end of vacuum-pumping pipeline 28 is connected with vacuum valve 29, very
Empty valve 29 is connected by cutting ferrule pipe with the sealing of port 2 33 of threeway 27, and the other end is sealed by vacuum flange and first interface 30
It is connected, the port 3 34 of threeway 27 is connected by cutting ferrule pipe with charging line 22, and charging line 22 passes through vacuum flange and second
The sealing of interface 31 is connected；Inert gas gas cylinder 1 is tightly connected with glove box 2；Glove box 2 is with vacuumizing by first interface 30
The sealing of system 4 is connected；Glove box 2 is connected by second interface 31 with topping up pipe 3；Topping up pipe 3 and Na-K alloy high temperature pulsating heat pipe 5
It is connected；Na-K alloy high temperature pulsating heat pipe 5 is in pulsating heat pipe heater 6.
In the present embodiment, pumped vacuum systems 4 includes vacuum meter 41, cold-trap 42, molecule pump assembly 43 and cooling bath 44,
Cooling bath 44 is connected on molecule pump assembly 43, and molecule pump assembly is cooled down, vacuum meter 41, cold-trap 42, molecule pump machine
Group 43 is sequentially connected, and vacuum meter 41 is connected by vacuum flange with first interface 30.Enough liquid nitrogen are poured into cold-trap 42, beaten
Molecule pump assembly 43 is driven, while opens the vacuum valve 29 in glove box, you can is connected by the second connecting tube 28, threeway the 27, the 3rd
Adapter 22 and topping up pipe 3 vacuumize Na-K alloy high temperature pulsating heat pipe 5, can be observed by vacuum meter 41 and vacuumize situation, cold
But water-bath 44 is used for providing circulation temperature lowering for molecule pump assembly 43.Other functions are that the system vacuumized should all belong to the present invention's
Protection domain.
, can be in pumped vacuum systems and liquid metal high-temperature pulse in order to further improve the vacuum in high temperature pulsating heat pipe
Increase by least one vacuum-pumping pipeline outside glove box between dynamic heat pipe.In the present embodiment, in liquid metal pulsating heat pipe
Bottom or sidepiece increase opening, make molecule pump assembly 43 be directly connected to high temperature respectively by a plurality of vacuum-pumping pipeline outside glove box
The bottom of pulsating heat pipe or the opening of sidepiece, are directly vacuumized to high temperature pulsating heat pipe.
Because alkali metal is active metal, easily aoxidized in oxygen, and be easy to react with water, Fast exothermic,
Therefore, glove box 2 should be sealing structure, and ensure liquid-filled operation anaerobic and it is anhydrous in the case of carry out.In order to increase sealing
Effect, between vacuum-pumping pipeline 28 and first interface 30, between vacuum-pumping pipeline 28 and vacuum valve 29, vacuum valve 29 and threeway 27
Between, between charging line 22 and second interface 31, between topping up pipe 3 and second interface 31, charging line 22 and threeway 27 it
Between, all should seal and be connected between pumped vacuum systems 3 and first interface 30, it is preferable that can be connected by vacuum flange, to prevent
Ambient atmos enter in glove box.As long as sealing effectiveness disclosure satisfy that requirement, other structures with sealing function can also generation
For vacuum flange, it should all belong to protection scope of the present invention.In the present embodiment, liquid line 26 can be flexible pipe, liquid line
Way switch 25 can be pressure type hosepipe switch, and the connection and blocking of flexible pipe are realized by adjusting pressure.
Preferably, vacuum-pumping pipeline 28 can be bellows.
It is Na-K alloy high temperature pulsation heat pipes heat, in the present embodiment, pulsating heat pipe heating with pulsating heat pipe heater 6
Device can be plough groove type heating plate or high frequency coil.
Preferably, liquid metal high temperature pulsating heat pipe can be that tubular type pulsating heat pipe or plate type pulsating heat pipe etc. are any existing
Existing heat pipe form in technology.
Because Na-K alloy high temperature pulsating heat pipe has the model to differ in size, therefore, installation can be increased thereunder
Lift 7, the height of regulation Na-K alloy high temperature pulsating heat pipe 5.
When the alkali metal working medium to be filled is metallic sodium, metal caesium, metal rubidium, they are all solid at normal temperatures, are needed
Liquid is molten into using heater and carries out topping up.
When needing to be filled with two kinds of different working medium in turn, threeway 27 can be changed to four-way or the connection of remaining multichannel
Pipe, the multichannel connecting tube connect multiple liquid lines, liquid line switch are designed with each liquid line, in order to independence
Control every liquid line.In order to accurately fill every kind of working medium, meausring apparatus can be all installed in the lower section of every kind of working medium.
The method for carrying out topping up to liquid metal high temperature pulsating heat pipe using said apparatus, refer to Fig. 1 and Fig. 2, mainly
Comprise the following steps：
S1：With glove box closing liquid metal storage device 23, meausring apparatus 24, vacuum-pumping pipeline 28, charging line 22
And liquid line 26.
S2：Liquid line 26 and the vacuum-pumping pipeline 28 closed in glove box, glove box 2 is carried out circulation remove oxygen and
Water, the water in glove box 2, oxygen content is less than or equal to 0.1ppm, ensure that the operation in glove box is anaerobic waterless operation, avoid
Liquid metal is oxidized.
S3：Heat liquid metal high temperature pulsating heat pipe 5 to required temperature, baking and be adsorbed in the incoagulable gas on surface.
S4：Purified in glove box and configure required liquid metal, and the liquid metal configured is positioned over liquid
In metal storage device 23.
In this process, purification and configuration process all should be carried out under the protection of glove box, avoid introducing with air contact
Impurity.The method of liquid metal for configuring high-purity is：Institute is pressed from both sides out respectively from the alkali metal working medium tank of dress alkali metal with tweezers
The solid alkali metal of need is simultaneously dried, and is cut away the surface scale of metal surface with knife, and the metal after cutting is put into and burnt
In cup, beaker is put on heater, temperature control makes alkali metal fusing (making its fusing according to the heating of the fusing point of different working medium), stands
Afterwards, the contamination film that the metal surface of liquid separates out is chosen with tweezers, repeats to stand once, then the metal surface of liquid is separated out
Contamination film chosen with tweezers, obtain the liquid metal of high-purity.Due in this process, being hedged off from the outer world all the time, and pass through
Stand twice and separate out impurity, so, obtained liquid metal has high-purity.
S5：Liquid line 26 is connected liquid metal storage device 23, and liquid line is extend into liquid metal storage
Below the liquid of device 23.
S6：The coagulation step S5 liquid metal being connected with the liquid metal storage device 23 of liquid line 26.
In this step, by the liquid metal solidification after purification, liquid metal is made to be changed into whole solid slug, confining liquid
The end of body pipeline 26.When working medium is Na-K alloy, due to Na-K alloy at normal temperatures for liquid, it is necessary to use liquid nitrogen spray gun
Hydrojet state metal bath surface, makes liquid metal solidification.When working medium be metallic sodium, metallic potassium, its solid-state at normal temperatures, after purification
Liquid metal room temperature can be solidified as block.
S7：Liquid metal high temperature pulsating heat pipe 5, charging line 22 and liquid line 26 are vacuumized, make high-temperature pulse
Vacuum in dynamic heat pipe 5 reaches 10-3Pa, and continue two hours, after the completion of close vacuum-pumping pipeline 28 and liquid line 26.
In this process, the liquid metal closing that the end of liquid line 26 is solidified, is now vacuumized, it is ensured that arteries and veins
All vacuumized completely in dynamic heat pipe 5, charging line 22, multichannel connecting tube and all liq pipeline 26, so that after topping up
Impurity removal need not be carried out to pulsating heat pipe 5 again, filling process simplified, and also ensure that the safety of filling process.Tool
Body way is：Enough liquid nitrogen are poured into cold-trap 42, open molecule pump assembly 43, open vacuum valve 29, closing liquid pipeline is opened
Close, pumped vacuum systems is pulsed hot by vacuum-pumping pipeline 28, threeway 27, charging line 22 and topping up pipe 3 to liquid metal high temperature
Pipe 5 vacuumizes, and inside heat pipe vacuum is reached 10-3Pa simultaneously continues two hours, after the completion of close vacuum valve 29.Use and add afterwards
Hot device heating alkali metal makes to be molten into liquid, and now, in the presence of pressure difference, liquid alkali metal can be inhaled in the state of vacuum
Enter in liquid metal high temperature pulsating heat pipe, and ensure free from admixture.
S8：Liquid metal in melting liquid metal storage device, and liquid metal storage device 23 is placed in weighing dress
Put on 24, open liquid line 26, liquid metal fills because pressure difference is inhaled into liquid metal high temperature pulsating heat pipe 5 when weighing
Put display reach needed for liquid metal quality when, closing liquid pipeline 26, ensure that the amount liquid metal that is filled with is accurate.
S9：By complete topping up the upper end of liquid metal high temperature pulsating heat pipe 5 topping up pipe 3 clamp it is disconnected, with inert gas
The cold welding opposite heat tube of protection is sealed.
S10：Safe handling is carried out to the charging device of liquid metal high temperature pulsating heat pipe.
The step can include cleaning and handling inside glove box, remaining liquid metal is poured into seal in kerosene and protected
Deposit, liquid line 26, charging line 22, threeway 27, vacuum valve 29, liquid line switch 25 are dismantled respectively and carried out with kerosene
Cleaning, it will be separated with blank flange with outside inside glove box etc..If being tested again in the short time, vacuum valve 29 can
That need not dismantle, blocked with plug.After inter-process is complete, with the topping up pipe 3 below heat-preservation cotton parcel glove box, liquid is poured into
Nitrogen, line temperature be -30 DEG C to -40 DEG C between when, all solid-state of liquid in pipe metal, topping up pipe 3 is dismantled, is placed in kerosene
Middle cleaning.If there is liquid metal fusing in disassembly process, it should be allowed to flow into and filled in the disk of enough expanded graphite extinguishing chemicals.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of liquid filling method of liquid metal high temperature pulsating heat pipe, it is characterised in that comprise the following steps：
S1：With glove box closing liquid metal storage device, meausring apparatus, vacuum-pumping pipeline, charging line and liquid line；
S2：The liquid line and vacuum-pumping pipeline closed in glove box, circulation is carried out to glove box and removes oxygen and water, makes gloves
Water, oxygen content in case are less than or equal to 0.1ppm；
S3：Heat liquid metal high temperature pulsating heat pipe to required temperature, baking and be adsorbed in the incoagulable gas on surface；
S4：Purified in glove box and configure required liquid metal, and the liquid metal configured is positioned over liquid metal
In storage device；
S5：Liquid line is connected liquid metal storage device, and liquid line is extend into the liquid of liquid metal storage device
Below face；
S6：The coagulation step S5 liquid metal being connected with the liquid metal storage device of liquid line；
S7：Liquid metal high temperature pulsating heat pipe, charging line and liquid line are vacuumized, made in high temperature pulsating heat pipe
Vacuum reaches 10-3Pa, and continue two hours, after the completion of close vacuum-pumping pipeline and liquid line；
S8：Liquid metal in melting liquid metal storage device, and liquid metal storage device is placed on meausring apparatus, beat
Liquid line is opened, liquid metal reaches institute because pressure difference is inhaled into liquid metal high temperature pulsating heat pipe, when meausring apparatus is shown
When needing the quality of liquid metal, closing liquid pipeline；
S9：The topping up pipe wrench for the liquid metal high temperature pulsating heat pipe upper end for completing topping up is broken, with inert gas shielding
Cold welding opposite heat tube is sealed；
S10：Safe handling is carried out to the charging device of liquid metal high temperature pulsating heat pipe.
A kind of 2. liquid filling method of liquid metal high temperature pulsating heat pipe according to claim 1, it is characterised in that the liquid
Working medium in state metallic high temperature pulsating heat pipe is Na-K alloy (mass fraction of potassium is 46%-89%), or metallic sodium, or metal
Potassium, or metal caesium, or metal rubidium.
A kind of 3. liquid filling method of liquid metal high temperature pulsating heat pipe according to claim 1, it is characterised in that step S6
In, when the freezing point of liquid metal is higher than room temperature, solidify liquid metal using liquid nitrogen.
A kind of 4. charging device of liquid metal high temperature pulsating heat pipe, it is characterised in that including inert gas gas cylinder, glove box,
Pumped vacuum systems, liquid metal high temperature pulsating heat pipe, pulsating heat pipe heater and topping up pipe, wherein, the glove box is sealing
Body structure, there are the gloves of two sealed connections on the just preceding casing of the glove box, have gas circulation system in the glove box
System, at least one meausring apparatus, at least one liquid metal storage device, multichannel connecting tube, vacuum-pumping pipeline, topping up pipe
Road, at least one liquid line, at least one liquid line switchs and vacuum valve, has first interface on the casing of the glove box
And second interface；
In the glove box, the vacuum-pumping pipeline, the charging line and at least one liquid line pass through institute
State multichannel connecting tube to link together, the vacuum-pumping pipeline is also connected to the first interface, and the charging line also connects
The second interface is connected to, each each liquid metal storage device of liquid line connection, the liquid metal is deposited
Storage device is used for containing to be charged into the liquid metal of liquid metal high temperature pulsating heat pipe, and the meausring apparatus is placed in each liquid gold
Belong to the lower section of storage device, for weighing the matter filled into every kind of liquid metal in the liquid metal high temperature pulsating heat pipe
Amount, the vacuum valve are arranged in the vacuum-pumping pipeline, and the liquid line switch is arranged on each liquid line；
The inert gas gas cylinder is tightly connected with the glove box；
The glove box is connected by the first interface with pumped vacuum systems sealing；
The glove box is connected by the second interface with the topping up seal of tube；
The topping up pipe is connected with the liquid metal high temperature pulsating heat pipe；
The liquid metal high temperature pulsating heat pipe is heated by the pulsating heat pipe heater.
5. the charging device of a kind of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that described to take out
Also there is at least one vacuum-pumping pipeline between vacuum system and the liquid metal high temperature pulsating heat pipe outside glove box.
A kind of 6. charging device of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that the liquid
The working medium being filled with state metallic high temperature pulsating heat pipe is Na-K alloy (mass fraction of potassium is 46%-89%), or metallic sodium, or
Metallic potassium, or metal caesium, or metal rubidium.
7. the charging device of a kind of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that described to take out
Vacuum system includes vacuum meter, cold-trap, molecule pump assembly and cooling bath, the vacuum meter, cold-trap, molecule pump assembly sequentially phase
Even, the cooling bath is connected on the molecule pump assembly, and the vacuum meter is connected with first interface sealing.
8. the charging device of a kind of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that described to take out
Vacuum line is connected by vacuum flange with first interface sealing；The pumped vacuum systems passes through vacuum flange and described the
One sealing joint is connected；The charging line is connected by vacuum flange with second interface sealing；The topping up pipe passes through
Vacuum flange is connected with second interface sealing.
A kind of 9. charging device of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that the arteries and veins
Dynamic heat pipe heater is plough groove type heating plate or high frequency coil.
10. the charging device of a kind of liquid metal high temperature pulsating heat pipe according to claim 4, it is characterised in that described
Liquid metal high temperature pulsating heat pipe is tubular type pulsating heat pipe or plate type pulsating heat pipe.
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