CN102878840B - Non-oxidation split charging device and non-oxidation split charging method for manufacturing alkali-metal high-temperature heat tubes - Google Patents
Non-oxidation split charging device and non-oxidation split charging method for manufacturing alkali-metal high-temperature heat tubes Download PDFInfo
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- CN102878840B CN102878840B CN201210378002.5A CN201210378002A CN102878840B CN 102878840 B CN102878840 B CN 102878840B CN 201210378002 A CN201210378002 A CN 201210378002A CN 102878840 B CN102878840 B CN 102878840B
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Abstract
The invention relates to a non-oxidation split charging device and a non-oxidation split charging method for manufacturing alkali-metal high-temperature heat tubes, and belongs o the technical field of heat tubes. The device comprises high-temperature heat tubes, high-temperature storage tanks, operation boxes with gloves, ultrahigh vacuum molecular pump units, pipelines and valves, each operation box with gloves comprises exhaust manifolds, each pipeline comprises a main gas inlet pipe, a branched exhaust bypass, a gas inlet bypass and a gas outlet bypass, and the valves include ultrahigh vacuum seal valves, gas inlet valves and exhaust valves. An alkali-metal process is significantly improved, non-oxidation alkali-metal split charging is realized, alkali-metal split charging hours for the heat tubes are few, aftertreatment time for completing a technological process is short, quantitative split charging for the multiple heat tubes can be carried out at one step, so that work efficiency in a split charging process for a single heat tube or the multiple heat tubes is greatly improved, consumption of water, electricity, gas and the like is greatly reduced, and the non-oxidation alkali-metal split charging process is greatly improved.
Description
Technical field
The present invention relates to a kind of device and method of preparing alkali metal high-temperature heat pipe, belong to hot pipe technique field.
Background technology
Heat pipe is a kind of high performance heat transfer element, be inner portion working media (working medium) evaporation, condense and reflux and heat be constantly transmitted to the device of heat sink from thermal source.Heat pipe has the features such as high capacity of heat transfer, high isothermal and heating current density ability.
High-temperature heat pipe refers generally to the heat pipe that operating temperature is greater than 500 ℃, adopts alkali metal as working medium more, such as potassium, sodium, lithium etc.Alkali metal working medium is solid-state at normal temperatures, and weak oxygen environment is easily oxidation also; Different alkali-metal fusing points is different in addition, for example alkali-metal fusing point, and potassium is at 64 ℃, and sodium is at 98 ℃, and lithium is at 181 ℃, therefore needs different temperature control when packing.
Alkali-metal point of process of assembling should guarantee: fill front heat pipe and have sufficiently high vacuum; Can control the amount that is filled with working medium; The working medium being filled with has higher purity, reaches the non-oxidation requirement of high-purity working medium etc.Alkali metal method for filling is in the past as follows:
(1) distillation of sodium metal fills technique, for example, has introduced distillation and fill sodium method in document " Ma Tongze, Hou Zengqi, Wu Wen Guang, " heat pipe ", Science Press, ISBN7-03-002011-1,1991,277-282 ".This distil process method, controls alkali-metal change in process and is, from solid-state → liquid state → gaseous state → liquid state → solid-state, process complexity, time-consuming is long, and post processing trouble, is difficult for accurate quantification.
(2) the quantitative filling equipment of solid base metal working medium and methods for filling (number of patent application is 200910091897.2, Qu Wei, Yu Bin).This method adopts filtering technique, controls alkali-metal change in process to be, from solid-state → liquid → solid-state, compared with (1) method, process is simple, but because the exhaust of connected heat pipe will be passed through working medium, vacuum resistance is large, and vacuum is difficult for reaching.In addition, vacuum glove cylinder belongs to open type inert gas shielding, still has the oxidation of small part alkali metal in point process of assembling, has affected the final performance of heat pipe.
(3) the accurate filling equipment of mini type high temperature heat pipe solid base metal working medium and methods for filling (2010 apply for a patent for Qu Wei, Duan Yanjun).Compared with (2) method, adopt bypass structure, heater is designed to peripheral heater, detachable.Heat owing to adopting periphery covering, the thermal resistance that contact gap causes has affected temperature control, has affected the stability filling; In addition, the inert gas shielding of open vacuum glove cylinder, still has the oxidation of small part alkali metal in point process of assembling, also affected the final performance of heat pipe.
Summary of the invention
The object of the invention is in order to propose a kind of non-oxidation packaging device and method of preparing alkali metal high-temperature heat pipe.
The object of the invention is to be achieved through the following technical solutions.
A kind of device of preparing alkali metal high-temperature heat pipe of the present invention, this device comprises high-temperature heat pipe, high temperature storage tank, glove box, ultrahigh vacuum molecular pump unit, pipeline and valve; Glove box comprises exhaust main;
Wherein, pipeline comprises main air inlet pipe, branch road bleed bypass, air inlet bypass and the bypass of giving vent to anger;
Valve comprises the first ultravacuum seal valve, the second ultrahigh vacuum seal valve, the 3rd ultrahigh vacuum seal valve, the 4th ultravacuum seal valve, the 5th air intake valve, the 6th air intake valve and the 7th drain tap;
Main air inlet pipe is connected with the bypass of giving vent to anger by the 6th air intake valve;
Main air inlet pipe is connected with air inlet bypass by the first ultravacuum seal valve, the 5th air intake valve;
Main air inlet pipe is connected with glove box, high temperature storage tank by the first ultravacuum seal valve, the 4th ultravacuum seal valve;
Main air inlet pipe is connected by the bypass of bleeding of the first ultravacuum seal valve, the second ultrahigh vacuum seal valve and branch road;
Main air inlet pipe is connected with ultrahigh vacuum molecular pump unit by the first ultravacuum seal valve, the second ultrahigh vacuum seal valve, the 3rd ultrahigh vacuum seal valve;
Exhaust main is connected with ultrahigh vacuum molecular pump unit by the 7th drain tap;
High temperature storage tank is communicated with glove box by the import and export of glove box bottom;
High-temperature heat pipe is connected with high temperature storage tank, and by flange fixed seal connection.
The dead ahead of glove box has the both sides of two glove ports, glove box to have exhaust main; Glove box is fixed on operating desk by flange; On flange, there is bolt hole; There are a day mean place, working medium tank interface, residue tank interface, sealing flange in glove box the inside, in the middle of glove box bottom surface, there are import and export rearward position; The position keeping left in glove box bottom surface is a day mean place, be distributed with working medium tank interface, residue tank interface in forward position, glove box bottom surface; After glove box, on inwall, there is lighting device; In the inside of glove box, surrounding has exhaust skirt, and the gas in glove box enters into exhaust main by the steam vent at exhaust skirt two ends; There is a transparent end cap on the top of glove box; Transparent end cap and glove box are sealed and are fixed by end cap seal hole;
High temperature storage tank is communicated with glove box by importing and exporting, and high temperature storage tank and glove box are to realize by sealing flange;
The centre position of high temperature storage tank is the passage that fills of working medium, fill passage above for cylindrical solid tunnel, middle for conicylindrical passage as transition region, be cylindrical liquid passage below; A side of cylindrical liquid passage be branch road bleed bypass, have two bypasses to be respectively air inlet bypass and the bypass of giving vent to anger in the both sides of cylindrical solid tunnel; Have cooling water inlet and coolant outlet at the lateral wall of high temperature storage tank, cooling circulating water carries out high temperature storage tank and glove box by cooling water inlet and coolant outlet heat insulation, and heat does not pass to glove box; In the sidewall of high temperature storage tank, there is six roots of sensation heating rod, and heating rod is fixed in the sidewall of high temperature storage tank by the screw hole of high temperature storage pot bottom; The top of high temperature storage tank has end cover, and the sealing upper flange that passes through of high temperature storage tank and glove box is fixed and seals; Sealing flange and sealing upper flange are a pair of sealing device, thereby high temperature storage tank and glove box are fixed and are sealed; There is a sealing lower flange bottom of high temperature storage tank, is fixed and is sealed by sealing lower flange and high-temperature heat pipe; There is sealing flange the upper end of high-temperature heat pipe, and sealing lower flange and sealing flange are a pair of sealing device, and high-temperature heat pipe and high temperature storage tank are fixed and are sealed; Sealing lower flange and sealing flange are accurately aimed at by sealing comb tooth;
Prepare a method for alkali metal high-temperature heat pipe, step is:
Part I, preliminary preparation:
1) before whole system starts, by all valve Close Alls;
2) inert gas enters from main air inlet pipe, opens the first ultravacuum seal valve, the 4th ultravacuum seal valve; The intake interface that inert gas covers from glove box transparent end by glove box air inlet pipe enters into glove box; Open the 7th drain tap, inert gas is by the air displacement in glove box, and air is discharged by exhaust main;
3) open the end cover of high temperature storage tank, inert gas enters into high temperature storage tank and high-temperature heat pipe, open the second ultrahigh vacuum seal valve, the 3rd ultrahigh vacuum seal valve, the 5th air intake valve, the 6th air intake valve, open ultrahigh vacuum molecular pump unit the air in high temperature storage tank and high-temperature heat pipe is extracted out by bleed bypass, air inlet bypass and the bypass of giving vent to anger of branch road;
Above-mentioned in whole process, by the displacement situation of inert gas in an instrument monitoring high temperature storage tank, glove box, in the time being all full of inert gas in whole system, turn off all valves and ultrahigh vacuum molecular pump unit, and stop the air inlet of main air inlet pipe;
Part II, operating process:
The first step, after weighing with the high-temperature heat pipe of sealing flange, accesses high temperature storage tank by high-temperature heat pipe by sealing lower flange, sealing comb tooth and sealing flange; Working medium tank, residue tank, respectively by working medium tank interface, residue tank interface access glove box, are sealedly and fixedly connected high temperature storage tank by importing and exporting with glove box; Precision balance, cutter, tweezers are put into glove box by transparent end cap after cleaning;
Second step, the glove box intake interface of the transparent end cap from glove box, the bottom that by interface, inert gas is passed into high-temperature heat pipe with a thin copper pipe, passes into inert gas replacement and goes out the air in high-temperature heat pipe, extracts the air in glove box out by vavuum pump;
The 3rd step is taken out alkali metal under the protection of inert gas in glove box from working medium tank, and cuts, weighs by precision balance;
The 4th step, in glove box, after weighing by precision balance, alkali metal adds in high temperature storage tank by tweezers;
The 5th step, the thin copper pipe in extraction high-temperature heat pipe, to glove box, cuts out the end cover of high temperature storage tank top;
The 6th step, closes the first ultravacuum seal valve and the 6th intake valve, opens two ultrahigh vacuum seal valves and the 5th air intake valve, and high temperature storage tank is vacuumized, and discharges inert gas;
The 7th step, the heating rod starting in high temperature storage tank skin face carries out electric heating temperature control to high temperature storage tank, and alkali metal working medium is wherein melted completely;
The 8th step, when the vacuum in high temperature storage tank reaches 10
-5when Pa, close two ultrahigh vacuum seal valves and the 5th air intake valve, open the 6th intake valve, pass into the inert gas of 0.02MPa, the liquid base metal working medium having melted is pressed in high-temperature heat pipe from high temperature storage tank;
The 9th step, closes the 6th intake valve, opens two ultrahigh vacuum seal valves and the 5th air intake valve, and high-temperature heat pipe is vacuumized;
The tenth step, when vacuum reaches 10
-5when Pa, use hydraulic tongs to take over pincers to high-temperature heat pipe top disconnected, solder up;
The 11 step, the high-temperature heat pipe that the tenth step has been welded to sealing weighs, and aeration cleaning high-temperature heat pipe, completes the preparation process of high-temperature heat pipe.
Beneficial effect
Inner eight angular regions of glove box are provided with air exhaust port; Top is provided with inert gas import, each tracheae wall and working medium tank and glove box wall sealing coupling; Glove box side is provided with glove port, and appropriate position, another side is provided with lighting device; Glove box bottom surface is coupled with working medium residue tank, alkali metal head tank, precision balance, and end face is provided with observation panel.
High temperature storage tank upper end is set and is covered fixing seal flange, with glove box bottom hole sealing coupling; Upper cover fixed axis rotary flange coordinates with lower cover fixing seal flange, realizes and opening and sealing; Storage tank upper end lower cover fixing seal flange coupling cooling water path; Axial hole is opened in storage tank wall inside, hole interpolation heating rod, and set bolt is arranged at bottom, or the heater strip of storage tank outside wall surface take-up strap insulation; Storage tank wall inside is embedded with two road vacuum lines, leads to the two ends up and down of storage tank; The coupled outside having heaters of storage tank lower end and heat pipe connector annex; Storage tank wall inside and bottom are taken in external heat wall face and are furnished with thermometric well; Storage tank heat device, and with heat pipe between in the heating power, each thermometric well of joint heater thermocouple be connected with temperature-controlling system.
When operation, in glove box, take out alkali metal by alkali metal head tank, in glove box, carry out cutting operation, quantitatively add working medium storage tank, novelty of the present invention, creative as follows:
Gloves cylinder in background technology in invention (3) will all be put into gloves cylinder by storage tank and branched pipe in operating process, surely can interfere alkali metal operation time space, in addition, alkali metal be delivered to eminence and be put into storage tank by storage tank mouth, inconvenient operation; Glove box of the present invention, in process, storage tank moves on to bottom completely, be the lower cover fixing seal flange of storage tank and the bottom hole of glove box sealing coupling, when this structure has not only avoided alkali metal to operate and the interference of storage tank, and filler is more prone to, opening more convenient, working medium tank top is more easily found accurately really, has reduced the operating time.
Gloves cylinder in background technology in invention (3) is open type environment, reduces the dividing potential drop of oxygen by increasing inert gas flow, but the diffusion that can not stop a small amount of oxygen completely.A small amount of oxygen makes to put into the alkali-metal purity of tank to be reduced; Glove box of the present invention belongs to all-sealed structure, steam vent is established at each angle, the flow field of discharging air is more smooth and easy, with inert gas replacement, displacement is cleaner, quick, exhaust, adds inert gas and has realized controlledly, has reduced inert gas consumption, reduce process time, the more important thing is and can realize alkali-metal oxygen-free environment operation.
In background technology, invent in (3); in open type environment, protect alkali metal with mobile inert gas; gas is in moving process; the mobile meeting of gas causes at least weighing error of 0.5g working medium to balance; glove box of the present invention, air wherein by inert gas replacement after, close each angle exhaust valve; in glove box, pure inert gas, in not flow regime of pressure-fired, can be got rid of the impact that in former technique, gas weighs for precision balance completely.
In the present invention, enclosed glove box adopts gas displacement pipe, before air in glove box is replaced, stretch into the bottom in heat pipe to be filled, first pass into inert gas, by the air displacement in heat pipe to be filled out, can eliminate like this absorption of capillary wick to air in heat pipe to be filled, compared with former technique, greatly reduce the consumption of inert gas, and promoted the performance of the heat pipe that fills.
In background technology, invent in (3) after working medium tinning, storage tank flange and upper flange to be joined, then remove gloves cylinder, again bolt is put on to the hole of flange periphery, fixing, to strengthen liquidating of inert gas simultaneously, prevent that air from entering storage tank and vacuum system, this process obtains three people and coordinates, and extremely bothers, consumes inert gas; Glove box of the present invention, adopts rotating shaft switch with the upper flanges of working medium storage tank, and convenient seal operation, has saved the process time, has improved efficiency, and in addition, a people can finish the work very at leisure, has also reduced significantly the consumption of inert gas simultaneously.
In background technology, in invention (2), exhaust is only from tank top exhaust; In invention (3), exhaust is only from tank bottom exhaust, the other end have a gas absorption, pumping efficiency is low; In the present invention, the wall inner couplings of working medium storage tank two-way tracheae, can realize upper and lower two-way exhaust, with former single bypass exhaust phase ratio, more be conducive to the discharge of on-condensible gas in alkali metal stripping and slicing gap in tank, the efficiency of bleeding of raising, has reduced partial pressure impact.
In the present invention, glove box is fixedly connected with at the flange port on storage tank top with storage tank interface, has avoided the dismounting of former gloves cylinder in technique, has reduced trouble, has improved efficiency; In addition, also make the sealing of system have very large lifting; Meanwhile, the air bringing that was dynamically connected in the past while so also having avoided operation affects system gas leakage dividing potential drop, and the present invention brings great convenience operation.
Alkali metal tank wall face adopts outer tape insulation heater strip, or heating rod adds thermal control and reach default heating-up temperature, establishes thermometric well in wall, carries out temperature feedback, than the temperature control level that had improved in the past tank body, makes temperature control more accurate.
The lower flange of tank top adopts water jacket cooling, has avoided in the past in the cooling space interference bringing of upper flange and inconvenience.
(1) glove box of the present invention belongs to all-sealed structure, steam vent is established at each angle, the flow field of discharging air is more smooth and easy, with inert gas replacement, displacement is cleaner, quick, exhaust, adds inert gas and has realized controlledly, has reduced inert gas consumption, reduce process time, the more important thing is and can realize alkali-metal oxygen-free environment operation;
(2) glove box of the present invention, in process, working medium tank moves on to bottom completely, be the lower cover fixing seal flange of storage tank and the bottom hole of glove box sealing coupling, when this structure has not only avoided alkali metal to operate and the interference of storage tank, and filler is more prone to, more convenient, storage tank mouth is more easily found accurately really, has reduced the operating time;
(3) glove box of the present invention, air wherein by inert gas replacement after, close each angle exhaust valve, in glove box, pure inert gas, in not flow regime of pressure-fired, can be got rid of the impact that gas in former technique weighs for precision balance completely;
(4) enclosed glove box of the present invention adopts gas displacement pipe, before air in glove box is replaced, stretch into the bottom in heat pipe to be filled, first pass into inert gas, by the air displacement in heat pipe to be filled out, can eliminate like this absorption of capillary wick to air in heat pipe to be filled, the consumption of the inert gas reducing has also promoted the performance of the heat pipe that fills;
(5) glove box of the present invention, adopts rotating shaft switch, convenient seal operation with the upper flanges of working medium storage tank, save the process time, improved efficiency, in addition, a people can finish the work very at leisure, has also reduced significantly the consumption of inert gas simultaneously;
(6) in the present invention, the wall inner couplings of working medium storage tank two-way tracheae, can realize upper and lower two-way exhaust, with former single bypass exhaust phase ratio, be more conducive to the discharge of on-condensible gas in alkali metal stripping and slicing gap in tank;
(7) be coupled in the wall of alkali metal working medium tank of the present invention heating rod or outside wall surface adopts outer tape insulation heater strip, reduced to twine the operation of heating tape, not only facilitates, and reduced thermal contact resistance;
(8) in the wall of alkali metal working medium tank of the present invention, establish thermometric well blind hole, interpolation thermocouple carries out temperature survey and feedback, than the temperature control level that had improved in the past tank body, makes temperature control more accurate;
(9) it is cooling that the lower flange of working medium of the present invention tank top adopts water jacket, avoided in the past in the cooling space interference bringing of upper flange and inconvenience;
(10) glove box of the present invention is fixedly connected with at the flange port on storage tank top with storage tank interface, has avoided the dismounting of former gloves cylinder in technique, has reduced trouble, has improved efficiency; In addition, also make the sealing of system have very large lifting; Meanwhile, the air bringing that was dynamically connected in the past while so also having avoided operation affects system gas leakage dividing potential drop, and the present invention brings great convenience operation;
(11) alkali metal storage tank wall of the present invention is embedded with two road vacuum lines, can carry out upper and lower two ends to working medium in storage tank simultaneously and bleed, and the efficiency of bleeding of raising, has reduced partial pressure impact.
By the significant improvement to alkali metal technique, realize alkali-metal non-oxidation packing, make heat pipe fill alkali-metal man-hour few, the finishing time that completes a technological process is few, can once carry out quantitatively filling of many heat pipes, therefore one fills or work efficiency that many fill simultaneously all improves greatly, simultaneously, the consumption of water, electricity, gas etc. greatly reduces, and alkali-metal non-oxidation packing technique has been entered major step.
Accompanying drawing explanation
Fig. 1 is alkali metal high-temperature heat pipe non-oxidation packaging device total system coupling schematic diagram of the present invention;
Fig. 2 is the assembling three-view diagram of high-temperature heat pipe in apparatus of the present invention, high temperature storage tank and glove box;
Fig. 3 is high-temperature heat pipe in apparatus of the present invention, high temperature storage tank and glove box sectional arrangement drawing and partial enlarged drawing;
Fig. 4 is cutaway view () and the partial enlarged drawing of high temperature storage tank component in apparatus of the present invention;
Fig. 5 is cutaway view (two) and the 3-D view of high temperature storage tank component in apparatus of the present invention;
Fig. 6 is external glove box three-view diagram and the partial sectional view of exhaust skirt in apparatus of the present invention;
Fig. 7 is built-in glove box three-view diagram and the partial sectional view of exhaust skirt in apparatus of the present invention;
Wherein, 101-high-temperature heat pipe, the transparent end cap of 102-, the main air inlet pipe of 103-, 104-the first ultravacuum seal valve, 105-the second ultrahigh vacuum seal valve, 106-the 3rd ultrahigh vacuum seal valve, 107-ultrahigh vacuum molecular pump unit, 108-the 4th ultravacuum seal valve, 109-glove box intake interface, 110-the 5th air intake valve, 111-the 6th air intake valve, 112-the 7th drain tap, 201-high temperature storage tank, 202-seals upper flange, 203-end cover, 204-end cap seal circle, 205-cooling water inlet, 206-coolant outlet, 207-heating rod, 208-screw hole, 209-seals lower flange, 210-sealing comb tooth, 211-sealing flange, the bypass of bleeding of 212-branch road, 213-air inlet bypass, the 213 '-bypass of giving vent to anger, 214-fills passage, 301-glove box, 302-glove port, 303-exhaust main, 304-flange, 305-bolt hole, 306-end cap seal hole, 307-exhaust skirt, 308-lighting device, 309-sealing flange, 310-imports and exports, 311-days mean places, 312-working medium tank interface, 313-residue tank interface, 314-steam vent, 315-interface.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
Prepare a device for alkali metal high-temperature heat pipe, as shown in Figure 1, this device comprises high-temperature heat pipe 101, high temperature storage tank 201, glove box 301, ultrahigh vacuum molecular pump unit 107, pipeline and valve; Glove box 301 comprises exhaust main 303;
Wherein, pipeline comprises main air inlet pipe 103, branch road bleed bypass 212, air inlet bypass 213 and the bypass 213 ' of giving vent to anger;
Valve comprises the first ultravacuum seal valve 104, the second ultrahigh vacuum seal valve 105, the 3rd ultrahigh vacuum seal valve 106, the 4th ultravacuum seal valve 108, the 5th air intake valve 110, the 6th air intake valve 111 and the 7th drain tap 112;
Main air inlet pipe 103 is connected with the bypass 213 ' of giving vent to anger by the 6th air intake valve 111;
Main air inlet pipe 103 is connected with air inlet bypass 213 by the first ultravacuum seal valve 104, the 5th air intake valve 110;
Main air inlet pipe 103 is connected with glove box 301, high temperature storage tank 201 by the first ultravacuum seal valve 104, the 4th ultravacuum seal valve 108;
Main air inlet pipe 103 is connected by the bypass 212 of bleeding of the first ultravacuum seal valve 104, the second ultrahigh vacuum seal valve 105 and branch road;
Main air inlet pipe 103 is connected with ultrahigh vacuum molecular pump unit 107 by the first ultravacuum seal valve 104, the second ultrahigh vacuum seal valve 105, the 3rd ultrahigh vacuum seal valve 106;
Exhaust main 303 is connected with ultrahigh vacuum molecular pump unit 107 by the 7th drain tap 112, and the 7th drain tap 112 is connected with ultrahigh vacuum molecular pump unit 107, in Fig. 1, does not express;
High temperature storage tank 201 is communicated with glove box 301 by the import and export of glove box 301 bottoms;
High-temperature heat pipe 101 is connected with high temperature storage tank 201, and by flange fixed seal connection.
As shown in Figure 1, Figure 2 with shown in Fig. 6: the dead ahead of glove box 301 has the both sides of two glove ports 302, glove box 301 to have exhaust main 303; Glove box 301 is fixed on operating desk by flange 304; On flange 304, there is bolt hole 305; There are day mean place 311, working medium tank interface 312, residue tank interface 313, sealing flange 309 in glove box 301 the insides, in the middle of glove box 301 bottom surfaces, there are import and export 310, lighting device 308 in rearward position; The position keeping left in glove box 301 bottom surfaces is day mean place 311, is distributed with working medium tank interface 312, residue tank interface 313 in forward position, glove box 301 bottom surfaces; After glove box 301, on inwall, there is lighting device 308; In the inside of glove box 301, surrounding has exhaust skirt 307, and the gas in glove box 301 enters into exhaust main 303 by the steam vent 314 at exhaust skirt 307 two ends; There is a transparent end cap 102 on the top of glove box 301; Transparent end cap 102 is sealed and is fixed by end cap seal hole 306 with glove box 301;
High temperature storage tank 201 is communicated with glove box 301 by importing and exporting 310, and high temperature storage tank 201 is to realize by sealing flange 309 with glove box 301;
As shown in Fig. 3,4,5: what the centre position of high temperature storage tank 201 was working medium fills passage 214, fill passage 214 above for cylindrical solid tunnel, middle for conicylindrical passage as transition region, be cylindrical liquid passage below; A side of cylindrical liquid passage be branch road bleed bypass 212, have two bypasses to be respectively air inlet bypass 213 and the bypass 213 ' of giving vent to anger in the both sides of cylindrical solid tunnel; There are cooling water inlet 205 and coolant outlet 206 at the lateral wall of high temperature storage tank 201, cooling circulating water carries out high temperature storage tank 201 and glove box 301 by cooling water inlet 205 and coolant outlet 206 heat insulation, and heat does not pass to glove box 301; In the sidewall of high temperature storage tank 201, there is six roots of sensation heating rod 207, and heating rod 207 is fixed in the sidewall of high temperature storage tank 201 by the screw hole 208 of high temperature storage tank 201 bottoms; The top of high temperature storage tank 201 has end cover 203, and end cover 203 seals by end cap seal circle 204 and high temperature storage tank; High temperature storage tank 201 is fixed and seals with the sealing upper flange 202 that passes through of glove box 301; Sealing flange 309 and sealing upper flange 202 are a pair of sealing device, thereby high temperature storage tank 201 and glove box 301 are fixed and are sealed; There is a sealing lower flange 209 bottom of high temperature storage tank 201, is fixed and seals with high-temperature heat pipe 101 by sealing lower flange 209; There is sealing flange 211 upper end of high-temperature heat pipe 101, and sealing lower flange 209 and sealing flange 211 are a pair of sealing device, and high-temperature heat pipe 101 and high temperature storage tank 201 are fixed and are sealed; Sealing lower flange 209 and sealing flange 211 are accurately aimed at by sealing comb tooth 210;
Prepare a method for alkali metal high-temperature heat pipe, step is:
Part I, preliminary preparation:
1) before whole system starts, by all valve Close Alls;
2) inert gas enters from main air inlet pipe 103, opens the first ultravacuum seal valve 104, the 4th ultravacuum seal valve 108; By glove box air inlet pipe 109, the intake interface 315 from the transparent end cap 102 of glove box enters into glove box 301 to inert gas; Open the 7th drain tap 112, inert gas is by the air displacement in glove box 301, and air is discharged by exhaust main 303;
3) open the end cover 203 of high temperature storage tank 201, inert gas enters into high temperature storage tank 201 and high-temperature heat pipe 101, open the second ultrahigh vacuum seal valve 105, the 3rd ultrahigh vacuum seal valve 106, the 5th air intake valve 110, the 6th air intake valve 111, open ultrahigh vacuum molecular pump unit 107 air in high temperature storage tank 201 and high-temperature heat pipe 101 is extracted out by bleed bypass 212, air inlet bypass 213 and the bypass 213 ' of giving vent to anger of branch road;
Above-mentioned in whole process, by the displacement situation of inert gas in an instrument monitoring high temperature storage tank 201, glove box 301, in the time being all full of inert gas in whole system, turn off all valves and ultrahigh vacuum molecular pump unit 107, and stop the air inlet of main air inlet pipe 103;
Part II, operating process:
The first step, after the high-temperature heat pipe with sealing flange 211 101 is weighed, accesses high temperature storage tank 201 by high-temperature heat pipe 101 by sealing lower flange 209, sealing comb tooth 210 and sealing flange 211; Working medium tank, residue tank are accessed in glove box 301 by working medium tank interface 312, residue tank interface 313 respectively, high temperature storage tank 201 is sealedly and fixedly connected with glove box 301 by importing and exporting 310; Precision balance, cutter, tweezers are put into glove box 301 by transparent end cap 102 after cleaning;
Second step, the glove box intake interface 109 of the transparent end cap 102 from glove box 301, by interface 315, inert gas is passed into the bottom of high-temperature heat pipe 101 with a thin copper pipe, pass into inert gas replacement and go out the air in high-temperature heat pipe 101, extract the air in glove box 301 out by vavuum pump;
The 3rd step is taken out alkali metal under the protection of inert gas in glove box 301 from working medium tank, and cuts, weighs by precision balance;
The 4th step, in glove box 301, after weighing by precision balance, alkali metal adds in high temperature storage tank 201 by tweezers;
The 5th step, the thin copper pipe in extraction high-temperature heat pipe 101, to glove box 301, cuts out the end cover 203 at high temperature storage tank 201 tops;
The 6th step, closes the first ultravacuum seal valve 104 and the 6th intake valve 111, opens two ultrahigh vacuum seal valves 105 and the 5th air intake valve 110, and high temperature storage tank 201 is vacuumized, and discharges inert gas;
The 7th step, the heating rod 207 starting in high temperature storage tank 201 walls carries out electric heating temperature control to high temperature storage tank 201, and alkali metal working medium is wherein melted completely;
The 8th step, when the vacuum in high temperature storage tank 201 reaches 10
-5when Pa, close two ultrahigh vacuum seal valves 105 and the 5th air intake valve 110, open the 6th intake valve 111, pass into the inert gas of 0.02MPa, the liquid base metal working medium having melted is pressed in high-temperature heat pipe 101 from high temperature storage tank 201;
The 9th step, closes the 6th intake valve 111, opens two ultrahigh vacuum seal valves 105 and the 5th air intake valve 110, and high-temperature heat pipe 101 is vacuumized;
The tenth step, when vacuum reaches 10
-5when Pa, use hydraulic tongs to take over pincers to high-temperature heat pipe 101 tops disconnected, solder up;
The 11 step, the high-temperature heat pipe 101 that the tenth step has been welded to sealing weighs, and aeration cleaning high-temperature heat pipe 101, completes the preparation process of high-temperature heat pipe 101.
Above-mentioned thin copper pipe is the copper tube of Φ 3 × 0.5.
Above-mentioned alkali metal is Li, Na, K.
Above-mentioned inert gas is Ar.
Description of equipment: heat pipe 101 to be filled is tightly connected with working medium pot bottom.Equipment is mainly by four parts such as ultrahigh vacuum molecular pump unit (107), glove box system (102,301,302,304,305,306,308,309,310,311,312,313,314,315), working medium can system (201,202,203,207,208,209,211,212,214), valve pipeline sealing systems (103,104,105,106,108,109,110,111,112,204,205,206,210,213,303,307).
Technical process: the first, heat pipe is accessed to high temperature storage tank by joint sealing, bottle, precision balance, residue container, cutter, tweezers that working medium raw material is housed etc. are put into operating room; The second, the inert gas tubule of glove box top cover is extend into heat pipe, pass into inert gas replacement and go out the air in heat pipe, extract the air in glove box out by vavuum pump, pass into inert gas replacement and go out air; The 3rd, under inert gas shielding, in glove box, carry out alkali-metal cutting, quantitative by precision balance; The 4th, quantitative alkali metal is added to high temperature storage tank by tweezers; The 5th, the flange of closing high temperature storage tank top; The 6th, high temperature storage tank is vacuumized, discharge inert gas; The 7th, heating high temperature storage tank makes alkali metal fusing wherein; The 8th, the inert gas of controlling certain pressure enters high temperature storage tank, makes the working medium after fusing enter heat pipe; The 9th, close inert gas piping valve, high temperature storage tank and heat pipe are vacuumized; The tenth, reach after certain vacuum, use the sealing of hydraulic tongs opposite heat tube, pincers disconnected; The 11, opposite heat tube carries out seal welding, weighs with quantitative again; The 12, to the heating of high temperature storage tank, aeration cleaning, complete a technological process.
After weighing with the empty heat pipe 101 of modular connection 211, heat pipe 101 is accessed to high temperature storage tanks 201 by 209,210,211; After clean to bottle, precision balance, residue container, cutter, tweezers etc. that working medium raw material is housed, put into glove box operating room 301 by upper cover or glove port; Second, by 315 interfaces of glove box top cover 102, with a thin copper pipe, inert gas is passed into the bottom of heat pipe 101, pass into inert gas replacement and go out the air in heat pipe 101, extract the air in glove box 301 out by vavuum pump, pass into inert gas replacement and go out the air in 101; The 3rd, in 301, under the protection of inert gas, in glove box 301, from the bottle of working medium raw material is housed, take out alkali metal, and cut, weigh by precision balance; The 4th, in 301, quantitative alkali metal is added to high temperature storage tank 201 by tweezers; The 5th, extract the tracheae in heat pipe out, the flange 203 of closing high temperature storage tank top; The 6th, close 104,111 2 valves, open 115,110 two valves, the top and bottom of storage tank are vacuumized simultaneously, discharge inert gas; The 7th, the heating rod starting in high temperature storage tank skin face carries out electric heating temperature control to high temperature storage tank, and working medium is wherein melted completely; The 8th, equal vacuum degree reaches 10
-5when Pa, close after 105,110 valves, open 111 valves, by the inert gas of 0.02MPa, working medium is gone out to enter heat pipe from high temperature storage tank pressure; The 9th, valve-off 111, opens valve 105,110, and opposite heat tube 101 enters long vacuumizing; The tenth, vacuum reaches 10
-5when Pa, use the adapter pincers on hydraulic tongs opposite heat tube top disconnected, solder up; The 11, post processing, weighs whole heat pipe, and system is carried out to aeration cleaning, has completed a technological process.
Each angular region of glove box is provided with gas row mouthful, connects extract system by valve; The end face of glove box is provided with observation panel, end face is provided with inert gas interface facing to high temperature storage tank, inner length of taking over is greater than the height overall length of being connected of heat pipe, heat pipe and high temperature storage tank, glove box, has certain rigidity and flexibility, and inert gas piping is by valve control; The bottom surface of glove box is coupled with alkali metal residue tank, alkali metal head tank, precision balance, and the side of glove box is provided with glove port, and catcher cover, is provided with lighting device in appropriate location, another side; Each interface of whole glove box is in sealing state, and exhaust and inert gas shielding adopt valve control;
The top of high temperature storage tank adopts flange seal, and upper flange is the flange of renovating with rotating shaft, and lower flange is the flange with coolant seal circle, has cooling-water duct, the impact on sealing ring while cutting off tank body heating; At the bottom of the side wall surface of high temperature storage tank and glove box, perforate is tightly connected, and adopts mounting flange; In the wall of high temperature storage tank, be circumferentially distributed with axial blind hole, be equipped with heating rod in blind hole, the screw of fixing heating rod is arranged at bottom; The wall of high temperature storage tank is provided with two holes by top, be provided with a hole by bottom, can realize the vacuum suction to high temperature storage tank two ends by one hole, top and one hole, bottom, can realize after realizing vacuum the inert gas of working medium in tank is impacted to working medium whereabouts by another hole, top; When bottom is arrived on the inner fixed space diameter of high temperature storage tank edge, pressing 45° angle closes up; The wall of high temperature storage tank is provided with blind hole thermometric well, can realize measurement and feedback to wall surface temperature.
Inert gas control You San road, a road is to take over the air in heat pipe when initial by the inert gas of glove box end face to replace, and takes over wall and glove box end face and is tightly connected; The second tunnel is in heat pipe and high temperature storage tank, to realize after predetermined vacuum level the working medium in heat fused high temperature storage tank, and the working medium of impacting in high temperature storage tank by a hole of high temperature storage tank top falls; Third Road has been that the hole of the hole by high temperature storage tank top, bottom after heat pipe packing purges high temperature storage tank and wall pipeline, carries out post processing clean.
Both carried out thermometric by the point in high temperature storage tank skin face thermometric well shaft bottom, also the whole tube connector between opposite heat tube and high temperature storage tank carries out thermometric simultaneously, has guaranteed the temperature of working medium stream.
The two is fixed seal connection for the glove box having and high temperature storage tank, and the latter half of high temperature storage tank sealing flange is with annular cooling water passage, the impact of when blocking-up heating high temperature storage tank by cooling water, sealing O being enclosed.
The heater of the high temperature storage tank having is to embed in tank body wall, thermometric well is also in tank body wall, avoid the generation of the air layer thermal contact resistance of coupled outside heater, avoided the inconvenience of wall laminating thermocouple and the inaccuracy of thermal source impact.
The high temperature storage tank having is characterised in that: working medium tank adopts stainless steel material, and the interface of its bottom adopts straight 90 ° of horn mouths, by bolt, tight two joint faces is realized to sealing, has avoided the unreliability of other hermetically-sealed constructions.
In a glove box, multiple high temperature storage tanks can be arranged, the packing of many heat pipes can be realized.
Post processing adopts heats jet post processing to the connecting portion of high temperature storage tank, high temperature storage tank and heat pipe.
Embodiment 2
As shown in Figure 7, be with embodiment 1 difference, exhaust skirt 307 is in the inside of glove box 301.
Claims (8)
1. a non-oxidation packaging device of preparing alkali metal high-temperature heat pipe, is characterized in that: this device comprises high-temperature heat pipe (101), high temperature storage tank (201), glove box (301), ultrahigh vacuum molecular pump unit (107), pipeline and valve; Glove box (301) comprises exhaust main (303);
Wherein, pipeline comprises main air inlet pipe (103), branch road bleed bypass (212), air inlet bypass (213) and the bypass (213 ') of giving vent to anger;
Valve comprises the first ultravacuum seal valve (104), the second ultrahigh vacuum seal valve (105), the 3rd ultrahigh vacuum seal valve (106), the 4th ultravacuum seal valve (108), the 5th air intake valve (110), the 6th air intake valve (111) and the 7th drain tap (112);
Main air inlet pipe (103) is connected with the bypass (213 ') of giving vent to anger by the 6th air intake valve (111);
Main air inlet pipe (103) is connected with air inlet bypass (213) by the first ultravacuum seal valve (104), the 5th air intake valve (110);
Main air inlet pipe (103) is connected with glove box (301), high temperature storage tank (201) by the first ultravacuum seal valve (104), the 4th ultravacuum seal valve (108);
Main air inlet pipe (103) is connected by the bypass (212) of bleeding of the first ultravacuum seal valve (104), the second ultrahigh vacuum seal valve (105) and branch road;
Main air inlet pipe (103) is connected with ultrahigh vacuum molecular pump unit (107) by the first ultravacuum seal valve (104), the second ultrahigh vacuum seal valve (105), the 3rd ultrahigh vacuum seal valve (106);
Exhaust main (303) is connected with ultrahigh vacuum molecular pump unit (107) by the 7th drain tap (112);
High temperature storage tank (201) is communicated with glove box (301) by the import and export of glove box (301) bottom;
High-temperature heat pipe (101) is connected with high temperature storage tank (201), by flange fixed seal connection;
The dead ahead of glove box (301) has the both sides of two glove ports (302), glove box (301) to have exhaust main (303); Glove box (301) is fixed on operating desk by flange (304); There are a day mean place (311), working medium tank interface (312), residue tank interface (313), sealing flange (309) in glove box (301) the inside; In the middle of glove box (301) bottom surface, there are import and export (310), lighting device (308) in rearward position; The position keeping left in glove box (301) bottom surface is a day mean place (311), is distributed with working medium tank interface (312), residue tank interface (313) in forward position, glove box (301) bottom surface; After glove box (301), on inwall, there is lighting device (308); Have exhaust skirt (307) in the inside surrounding of glove box (301), the gas in glove box (301) enters into exhaust main (303) by the steam vent (314) at exhaust skirt (307) two ends; There is a transparent end cap (102) on the top of glove box (301); Transparent end cap (102) is sealed and is fixed by end cap seal hole (306) with glove box (301);
High temperature storage tank (201) is communicated with glove box (301) by importing and exporting (310), and high temperature storage tank (201) is to realize sealing by sealing flange (309) with glove box (301).
2. a kind of device of preparing alkali metal high-temperature heat pipe according to claim 1, it is characterized in that: what the centre position of high temperature storage tank (201) was working medium fills passage (214), fill passage (214) above for cylindrical solid tunnel, middle for conicylindrical passage as transition region, be cylindrical liquid passage below; A side of cylindrical liquid passage be branch road bleed bypass (212), have two bypasses to be respectively air inlet bypass (213) and the bypass (213 ') of giving vent to anger in the both sides of cylindrical solid tunnel; Have cooling water inlet (205) and coolant outlet (206) at the lateral wall of high temperature storage tank (201), cooling circulating water is undertaken heat insulation by cooling water inlet (205) and coolant outlet (206) by high temperature storage tank (201) and glove box (301).
3. a kind of device of preparing alkali metal high-temperature heat pipe according to claim 1, it is characterized in that: in the sidewall of high temperature storage tank (201), have heating rod (207), and by the screw hole (208) of high temperature storage tank (201) bottom, heating rod (207) is fixed in the sidewall of high temperature storage tank (201); The top of high temperature storage tank (201) has end cover (203), and high temperature storage tank (201) was fixed and seals with being connected by sealing upper flange (202) of glove box (301); Sealing flange (309) and sealing upper flange (202) are a pair of sealing device, thereby high temperature storage tank (201) and glove box (301) are fixed and are sealed; There is a sealing lower flange (209) bottom of high temperature storage tank (201), is fixed and is sealed by sealing lower flange (209) and high-temperature heat pipe (101); There is sealing flange (211) upper end of high-temperature heat pipe (101), sealing lower flange (209) and sealing flange (211) are a pair of sealing device, and high-temperature heat pipe (101) and high temperature storage tank (201) are fixed and are sealed; Sealing lower flange (209) and sealing flange (211) are accurately aimed at by sealing comb tooth (210).
4. utilize device described in claim 1,2 or 3 to carry out a preparation method for alkali metal high-temperature heat pipe, it is characterized in that step is:
Part I, preliminary preparation:
1) before whole system starts, by all valve Close Alls;
2) inert gas enters from main air inlet pipe (103), opens the first ultravacuum seal valve (104), the 4th ultravacuum seal valve (108); By glove box air inlet pipe (109), the intake interface (315) from the transparent end cap of glove box (102) enters into glove box (301) to inert gas; Open the 7th drain tap (112), inert gas is by the air displacement in glove box (301), and air is discharged by exhaust main (303);
3) open the end cover (203) of high temperature storage tank (201), inert gas enters into high temperature storage tank (201) and high-temperature heat pipe (101), open the second ultrahigh vacuum seal valve (105), the 3rd ultrahigh vacuum seal valve (106), the 5th air intake valve (110), the 6th air intake valve (111), open ultrahigh vacuum molecular pump unit (107) by the air in high temperature storage tank (201) and high-temperature heat pipe (101) by the branch road bypass (212) of bleeding, air inlet bypass (213) and the bypass (213 ') of giving vent to anger are extracted out,
Above-mentioned in whole process, by the displacement situation of inert gas in an instrument monitoring high temperature storage tank (201), glove box (301), in the time being all full of inert gas in whole system, turn off all valves and ultrahigh vacuum molecular pump unit (107), and stop the air inlet of main air inlet pipe (103);
Part II, operating process:
The first step, after high-temperature heat pipe with sealing flange (211) (101) is weighed, high-temperature heat pipe (101) is accessed to high temperature storage tank (201) by sealing lower flange (209), sealing comb tooth (210) and sealing flange (211); Working medium tank, residue tank, respectively by working medium tank interface (312), residue tank interface (313) access glove box (301), are sealedly and fixedly connected by importing and exporting (310) high temperature storage tank (201) with glove box (301); Precision balance, cutter, tweezers are put into glove box (301) by transparent end cap (102) after cleaning;
Second step, the glove box intake interface (109) of the transparent end cap (102) from glove box (301), by interface (315), inert gas is passed into the bottom of high-temperature heat pipe (101) with a thin copper pipe, pass into inert gas replacement and go out the air in high-temperature heat pipe (101), extract the air in glove box (301) out by vavuum pump;
The 3rd step is taken out alkali metal, and is cut, weighs by precision balance under the protection of inert gas in glove box (301) from working medium tank;
The 4th step, in glove box (301), after weighing by precision balance, alkali metal adds in high temperature storage tank (201) by tweezers;
The 5th step, the thin copper pipe in extraction high-temperature heat pipe (101), to glove box (301), cuts out the end cover (203) at high temperature storage tank (201) top;
The 6th step, close the first ultravacuum seal valve (104) and the 6th intake valve (111), open the second ultrahigh vacuum seal valve (105) and the 5th air intake valve (110), high temperature storage tank (201) is vacuumized, discharge inert gas;
The 7th step, the heating rod 207 starting in high temperature storage tank (201) wall carries out electric heating temperature control to high temperature storage tank (201), and alkali metal working medium is wherein melted completely;
The 8th step, when the vacuum in high temperature storage tank (201) reaches 10
-5when Pa, close the second ultrahigh vacuum seal valve (105) and the 5th air intake valve (110), open the 6th intake valve (111), pass into a small amount of inert gas, the liquid base metal working medium having melted is pressed in high-temperature heat pipe (101) from high temperature storage tank (201);
The 9th step, closes the 6th intake valve (111), opens the second ultrahigh vacuum seal valve (105) and the 5th air intake valve (110), and high-temperature heat pipe (101) is vacuumized;
The tenth step, when vacuum reaches 10
-5when pa, use hydraulic tongs to take over pincers to high-temperature heat pipe (101) top disconnected, solder up;
The 11 step, the high-temperature heat pipe (101) that the tenth step has been welded to sealing weighs, and aeration cleaning high-temperature heat pipe (101), completes the preparation process of high-temperature heat pipe (101).
5. the preparation method of alkali metal high-temperature heat pipe according to claim 4, is characterized in that: thin copper pipe is the copper tube of Φ 3 × 0.5.
6. the preparation method of alkali metal high-temperature heat pipe according to claim 4, is characterized in that: alkali metal is Li, Na, K.
7. the preparation method of alkali metal high-temperature heat pipe according to claim 4, is characterized in that: inert gas is Ar.
8. the preparation method of alkali metal high-temperature heat pipe according to claim 4, is characterized in that: in the 8th step, pass into the inert gas that a small amount of inert gas is 0.02MPa.
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| CN104075600B (en) | 2014-06-30 | 2016-04-13 | 中国航天空气动力技术研究院 | The solid-state working medium filling equipment of a kind of pair of process interface heat pipe and methods for filling |
| TWI547420B (en) * | 2015-02-10 | 2016-09-01 | Univ Tamkang | Filling tubes for high temperature heat pipe filling operations |
| CN105115328A (en) * | 2015-08-10 | 2015-12-02 | 中国航天空气动力技术研究院 | Filling method for low-melting-point alkali metal working mediums |
| CN105403086A (en) * | 2015-12-24 | 2016-03-16 | 中国航空工业集团公司北京航空制造工程研究所 | Storage tank and device for filling of alkali-metal heat pipe as well as method for filling heat pipe with alkali metal |
| CN108956440B (en) * | 2018-08-03 | 2020-08-18 | 中国核动力研究设计院 | Corrosion test device and method for liquid lead or liquid lead bismuth alloy |
| CN109141086A (en) * | 2018-08-31 | 2019-01-04 | 中国航天空气动力技术研究院 | A kind of methods for filling of high-temperature heat pipe working medium |
| CN110411253B (en) * | 2019-07-11 | 2020-10-09 | 桂林电子科技大学 | High-temperature heat pipe working medium filling device and method |
| CN111780599A (en) * | 2020-06-08 | 2020-10-16 | 华南理工大学 | Packaging method of high-temperature heat pipe |
| CN112098622A (en) * | 2020-08-21 | 2020-12-18 | 宁波广新纳米材料有限公司 | Device and method for detecting oxygen content of extremely-oxidizable metal powder |
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| CN100347074C (en) * | 2003-04-18 | 2007-11-07 | 中国科学院工程热物理研究所 | Device capable of qualitatively filling liquid |
| CN1707816B (en) * | 2004-06-11 | 2010-05-05 | 潘戈 | Temperature regulating planar transparent photovoltaic tube mixed thermal collector |
| CN101995181B (en) * | 2009-08-28 | 2012-11-28 | 中国科学院工程热物理研究所 | Quantitative charging apparatus and method of solid alkali metal working mediums |
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