CN209607425U - A kind of high temperature lithium circuit purification hot trap system - Google Patents
A kind of high temperature lithium circuit purification hot trap system Download PDFInfo
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- CN209607425U CN209607425U CN201920042255.2U CN201920042255U CN209607425U CN 209607425 U CN209607425 U CN 209607425U CN 201920042255 U CN201920042255 U CN 201920042255U CN 209607425 U CN209607425 U CN 209607425U
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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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Abstract
The utility model discloses a kind of high temperature lithium circuit purification hot trap systems comprising have the lithium storage tank for holding liquid lithium, for the lithium recycling can of lithium after reclaiming clean, the pipeline being connected between the lithium storage tank and lithium recycling can, the electromagnetic pump being arranged on pipeline and be arranged on the pipeline one group for carrying out the hot trap device of purification operation to lithium；The advantageous effects that this programme has are as follows: stable and reliable in work suitable for the in-line purification in lithium circuit；Entire hot trap system bulk is small: being free of special construction component, convenient processing and manufacture；System purification effect is much better than other purification means at this stage.
Description
Technical field
The utility model relates to nonmetalloid impurity removal technology fields, and in particular to a kind of high temperature lithium circuit purification use
Hot trap system.
Background technique
Just greatly developing a series of using liquid metal as the novel nuclear power unit of coolant in China.Liquid metal coolant
Durings raw material production, circuit construction and equipment operation etc., various metals, nonmetallic inclusion may be all introduced.It compares
Compared with for, the nonmetallic inclusions element influences such as oxygen therein, hydrogen, nitrogen, carbon are more significant, are also more difficult to remove.These impurity shapes
At compound may be precipitated in circuit low temperature partially crystallizable, cause flow blockage reduce circuit heat transfer effect, cause pipeline
Local temperature is excessively high.The presence of nonmetallic inclusion also can the corrosion of accelerating structure material cause great to generate security risk
Safety accident.Therefore lithium circuit has harsh requirement to the cleanliness of working medium, and improving purification means is also to carry out high temperature lithium to return
The prerequisite of road research.
For fluent metal loop mostly using sodium, Na-K alloy as coolant, major impurity is oxygen at present.Oxygen solubility is with temperature
Decline and reduce, it is general to be purified using the cold-trap method (cold trap) based on decrease temperature crystalline, oxygen content can be down to
10ppm or less.With the development of atomic energy technology and the broadening of application field, the running temperature in circuit is further increased, and 600 DEG C
Saturated vapour pressure lower lithium metal is generally used when above.
The different working medium impurities exhibits of table 1
Solubility of the partial impurities provided according to table 1 in alkali metal, since lithium fusing point is 180 DEG C or so, lithium circuit
The operating temperature of middle cold-trap need to be maintained at 200 DEG C -210 DEG C states for being slightly above fusing point, at this time the nitrogen in lithium, oxygen, hydrogen solubility
Still it is much higher than 10ppm, impurity only can not be completely removed by cold-trap.As can be seen that the cold-trap method of current technology relative maturity is only
Preliminary filtering, purification can be realized to lithium, and the cleanliness standard as coolant is not achieved.The research in China lithium circuit is also located
In the starting stage, high temperature lithium circuit (> 900K) there is no to build experience at present, therefore has not been used in the purification of high temperature lithium circuit
Hot trap example.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of purifications of high temperature lithium circuit to use
Hot trap system, the hot trap system can effectively purify lithium circuit nonmetallic inclusion, and whole system is stable and reliable in work, only
It is obvious to change effect.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of high temperature lithium circuit purification hot trap system, the hot trap system include the lithium storage tank for holding liquid lithium, are used for
The lithium recycling can of lithium, the pipeline being connected between the lithium storage tank and lithium recycling can, the electricity being arranged on pipeline after reclaiming clean
Magnetic pumping and be arranged on the pipeline one group are for carrying out the hot trap device of purification operation, hot trap described in every group to lithium
Device include tank body, the outlet being arranged in the tank body, inlet tube and for liquid lithium carry out purification operation
At least one set of getter element, getter element described in every group include for carrying out absorption to nonmetallic inclusion in liquid lithium
The getter removed and the supporting mechanism for the getter to be fixedly mounted on to the tank interior, wherein the outlet
It is connected respectively with the pipeline with inlet tube, flows into tank body and the intracorporal liquid lithium outflow of tank for liquid lithium.
Further, when the hot trap device is multiple groups, hot trap device described in multiple groups is pacified by way of serial or parallel connection
Mounted in the pipeline enclosure.
Further, the getter is one or more of titanium, yttrium and three kinds of zirconium.
Further, when the getter is titanium, the supporting mechanism of titanium getter is used to support in the getter element
Include the encapsulant layer being made of titanium sponge as getter, the silk screen that the encapsulant layer outer surface is set, erect
Directly the positioning pipe in the encapsulant layer middle position is set and the support plate of the silk screen bottom end is set, wherein institute
It states silk screen and is fixed with the positioning pipe and inner tank wall by welding and is connected.
Further, the titanium sponge is that the spongy titanium material using national standard zero level granularity not less than 30mm is constituted.
Further, when the getter is yttrium, the supporting mechanism of yttrium getter is used to support in the getter element
It include the encapsulant layer being made of yttrium ball or yttrium silk as getter, the silk that the encapsulant layer outer surface is set
Net, the positioning pipe for being vertically arranged in the encapsulant layer middle position and the support plate that the silk screen bottom end is set,
Wherein the silk screen is fixed by welding with the positioning pipe and inner tank wall and is connected.
Further, when the encapsulant layer is using yttrium ball, diameter is less than 3mm；When the encapsulant layer is
When using yttrium silk, string diameter is less than 0.5mm.
Further, when the getter is zirconium, the supporting mechanism of zirconium getter is used to support in the getter element
It include the zirconium piece disk rolled by zirconium piece and the zirconium piece disk positioning pipe that the Gao Pian disk center is set, wherein the zirconium
Piece disk is mounted in the tank body by the disk-like structure that its underpart is constituted.
Further, the spacing between each layer zirconium piece disk is 1mm, and rolling pleat width is 5mm between zirconium piece disc layer.
Further, the hot trap device further includes having temperature control system, and the temperature control system includes electric heater unit, heat preservation
Layer and air cooling system, wherein the electric heater unit uniform winding is on the outside of the tank body and pipeline, for the work in it
Matter lithium is kept the temperature, and the air cooling system is arranged outside the tank body, for being cooled down to the part that needs to cool down in tank body,
The insulating layer is arranged on the outside of the electric heater unit.
Compared with prior art, the advantageous effects that this programme has are as follows:
1, stable and reliable in work suitable for the in-line purification of lithium；
2, entire hot trap system bulk is small, is free of special construction component, convenient processing and manufacture；
3, system purification effect is much better than other purification means at this stage.
Detailed description of the invention
Fig. 1 is the utility model high temperature lithium circuit purification hot trap system structure diagram.
Fig. 2 is hot trap apparatus structure schematic diagram in the utility model.
It is using titanium sponge getter element structural schematic diagram that Fig. 3, which is in the utility model,.
It is using yttrium getter element structural schematic diagram that Fig. 4, which is in the utility model,.
It is using zirconium getter component structure diagram that Fig. 5, which is in the utility model,.
Fig. 6 is to put down under different temperatures through using the nitrogen impurity after titanium, yttrium and zirconium getter purified treatment in the utility model
Weigh concentration curve.
Fig. 7 is to put down under different temperatures through using the hydrogen impurity after titanium, yttrium and zirconium getter purified treatment in the utility model
Weigh concentration curve.
Fig. 8 is to put down under different temperatures through using the oxygen impurities after titanium, yttrium and zirconium getter purified treatment in the utility model
Weigh concentration curve.
Fig. 9 is a kind of hot trap device schematic layout pattern in the utility model.
In figure:
1- lithium storage tank, 2- electromagnetic pump, 3- hot trap device, 4- lithium recycling can, 5- pipeline, 31- tank body, 32- inlet tube, 33-
Outlet, 34- getter element, 341- positioning pipe, 342- getter layer, 343- silk screen, 35- support plate, 36- thermocouple trap.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
This programme is that preliminary filtering, purification can only be realized to lithium for the cold-trap method of current technology relative maturity, and is reached
The shortcomings that less than the cleanliness standard for being used as coolant, and then a kind of high temperature lithium circuit purification hot trap system proposed, the heat
Trap system can effectively purify lithium circuit nonmetallic inclusion, and whole system is stable and reliable in work, and clean-up effect is obvious.
Referring to the purification of high temperature lithium circuit hot trap system and the hot trap device shown in attached Fig. 1 and 2, respectively in the present embodiment
Structural schematic diagram.Hot trap system in the present embodiment includes the lithium storage tank 1 for holding liquid lithium, for lithium after reclaiming clean
Lithium recycling can 4, the pipeline 5 being connected between lithium storage tank 1 and lithium recycling can 4, the electromagnetic pump 2 being arranged on pipeline 5 and at least
One group be arranged on pipeline 5 is used to carry out lithium the hot trap device 3 of purification operation.It should be noted that in practice due to
Used different getter material is different to the detergent power of impurity, and respective running temperature is also different, therefore in reality
One or more hot trap devices 3 can be arranged in border in the hot trap system of the present embodiment as needed, each other according to work
Characteristic and purification requirement can unrestricted choice serial or parallel connections.Every group of hot trap device 3 includes tank body 31, is arranged in tank body 31
Outlet 33, inlet tube 32 and at least one set of getter element 34 for carrying out purification operation to liquid lithium, outlet 33
The top of tank body 31 is set, and the lower part of tank body 31 is arranged in inlet tube 32, and to make liquid lithium, inlet tube 32 flows from below
Enter, flow through getter element 34, getter element 34 can effectively absorb the impurity in lithium, achieve the purpose that purification.Through
Purified lithium is flowed out from top outlet 33, is returned in lithium circuit.Every group of getter element 34 includes for liquid lithium
Middle nonmetallic inclusion carries out the getter 342 of Adsorption and the branch for getter 342 to be fixedly mounted on to tank interior
Support mechanism, wherein outlet 33 and inlet tube 32 are connected with pipeline 5 respectively, flow into tank body 31 and tank body 31 for liquid lithium
Liquid lithium outflow.Hot trap device 3 further includes having temperature control system, and temperature control system includes electric heater unit, insulating layer and wind
Cooling system, wherein electric heater unit uniform winding is on the outside of tank body 31 and pipeline, for being kept the temperature to the working medium lithium in it, wind
Cooling system is arranged outside tank body 31, and for cooling down to the part that needs to cool down in tank body 31, insulating layer is arranged in electric heating
On the outside of device.Furthermore thermocouple trap 36, built-in thermocouple, to carry out the survey of lithium Temperature of Working are additionally provided in hot trap device 3
Amount realizes the control of hot trap running temperature.
Getter element 34 in hot trap device 3 is the critical component in whole system, the i.e. selection and suction of getter
The structure arrangement of gas agent is all key point.For getter, selection when mainly consider its thermodynamic property and with
Compatibility between working medium.Referring to shown in the table 2 of lower section, which show alkali metal under mark condition (25 DEG C) and getter material difference
The Gibbs energy data of the stable compound generated with impurity element, with the getter metal of higher negative free energy in table
It theoretically can be used as the candidate materials for absorbing foreign gas.So to can choose zirconium, titanium, yttrium, tantalum, lanthanum etc. a series of for getter
Material sensitive to nonmetalloids such as oxygen, hydrogen, nitrogen and that adsorption capacity is strong.At the same time, it must also be examined when selecting getter
Consider influence of the temperature to Gibbs energy, the Gibbs energy of each substance varies with temperature degree and is not quite similar, therefore various getters
There is also greatest differences for function and effect under different running temperatures.Getter selected in the present embodiment is preferably titanium, yttrium
With three kinds of zirconium.For convenience, respectively by selection using the corresponding referred to as titanium heat of hot trap device of the getter of titanium, yttrium and zirconium
Trap device, yttrium hot trap device and zirconium hot trap device.
The partially stabilized chemical combination object standard Gibbs free energy of formation data of table 2
In conjunction with shown in reference attached drawing 3, for the titanium getter element structural schematic diagram constituted using titanium getter.Getter group
The supporting mechanism that titanium getter is used to support in part includes that the encapsulant layer being made of as getter titanium sponge, setting exist
The silk screen 343 of encapsulant layer outer surface, the positioning pipe 341 for being vertically arranged in encapsulant layer middle position and setting are in silk
The support plate 35 of 343 bottom end of net, wherein silk screen 343 is fixed by welding with positioning pipe 341 and 31 inner wall of tank body and is connected.
In this configuration, titanium sponge uses packing material of the 0 grade of titanium sponge of national standard as getter specified in GB-T-2524-2010,
Its specific surface area is about 4000m2/m3.Since titanium sponge is frangible, it is difficult to be processed into regular shape, therefore granularity is selected to be not less than
The titanium sponge of 30mm is filled, and is coated with 300 mesh stainless steel cloths 343, to prevent titanium sponge in the case where lithium working medium is washed away
It is broken to generate disintegrating slag, pollute hot trap and lithium working medium.
In conjunction with shown in reference attached drawing 4, for the titanium getter element structural schematic diagram constituted using yttrium getter.Getter group
The supporting mechanism that yttrium getter is used to support in part includes the encapsulant layer being made of yttrium ball or yttrium silk as getter, sets
Set encapsulant layer outer surface silk screen 343, be vertically arranged in encapsulant layer middle position positioning pipe 341 and setting
In the support plate 35 of 343 bottom end of silk screen, wherein silk screen 343 is fixed with positioning pipe 341 and 31 inner wall of tank body by welding
It is connected.When actual fabrication, yttrium ball selects yttrium ball of the diameter less than 3mm or string diameter to be less than the yttrium silk of 0.5mm, selects above-mentioned diameter
Or the yttrium ball or yttrium silk of string diameter size can increase the contact area between getter and working medium lithium as packing material.Due to yttrium
Its hardness is larger, processing difficulties, therefore concrete specification to yttrium ball and circularity can not do excessive requirement, equally can be fine
Satisfaction purify require.
In conjunction with shown in reference attached drawing 5, for the titanium getter element structural schematic diagram constituted using zirconium getter.Getter group
The supporting mechanism that zirconium getter is used to support in part includes the zirconium piece disk rolled by zirconium piece and is arranged in Gao Pian disk center
The zirconium piece disk positioning pipe 341 at place, wherein zirconium piece disk is mounted in tank body 31 by the disk-like structure that its underpart is constituted.In practical system
When making, using the zirconium piece disk that the zirconium piece of 0.1mm thickness rolls into as getter element, wherein the specific surface area of getter is greater than
300m2/m3.Spacing is 1mm between each layer zirconium piece, and interlayer rolls the wide 5mm of fold.
Referring to shown in attached drawing 2, finally, it should be noted that, its installation side in hot trap of getter element in the present embodiment
Formula be all be to be mounted on by positioning pipe 341 in hot trap device 3, specifically, when for titanium hot trap device, titanium getter assembly
Installation is realized to be coated on the outside of inlet tube 32 by positioning pipe 341 thereon, i.e., by welding the positioning pipe 341 in it
It connects in 32 outside of inlet tube, and then realizes that titanium getter assembly is mounted in tank body；Equally, when using yttrium hot trap device or zirconium heat
When trap device, all it is that the corresponding positioning pipe 341 by it is welded on 32 outside of inlet tube, realizes the fixed peace of getter element
Dress.
Respective operating temperature and operation characteristic and corresponding are distinguished to above-mentioned titanium, yttrium and the zirconium in the present embodiment below
Clean-up effect is summarized as follows:
Titanium hot trap device:
Titanium hot trap device can be used for the purification of nitrogen in working medium lithium, but not be suitable for the purification of hydrogen and oxygen, running temperature without
Specific requirement, can be identical as the running temperature in lithium circuit, because without cooling or heating device, and before sufficiently cleaned up
Putting can be by the near 1ppm or less of the content of nitrogen.
Yttrium hot trap device:
Yttrium hot trap device can be used for purifying the purification of nitrogen, hydrogen and oxygen, but the temperature range respectively to work is different.
1, when absorbing hydrogen, in view of the requirement of cleanliness and purification rate, use temperature range 520K-600K is filling
The content of hydrogen can be down to 10ppm or less under the premise of dividing purification；
2, when absorbing oxygen, in view of the requirement of cleannes and purification rate, it is no more than 1000K using temperature, sufficiently net
The content of oxygen can be down to 10ppm or less under the premise of change；
3, when absorbed nitrogen, running temperature, can be identical as the running temperature in circuit without specific requirement, because without cooling or
Heating device, under the premise of sufficiently cleaned up the content of nitrogen can be down to 1ppm hereinafter, but its purification rate filled not as good as titanium hot trap
It sets and zirconium hot trap device.
Zirconium hot trap device:
Zirconium hot trap device can be used for nitrogen in working medium lithium and purify, but not be suitable for the purification of hydrogen and oxygen, and running temperature is without specific
It, can be by nitrogen under the premise of sufficiently cleaned up because without cooling or heating device it is required that can be identical as the running temperature in circuit
Content be down to 1ppm or less.
Its purification rate of hot trap device is affected by temperature obviously, when temperature is from when being promoted to 600 DEG C for 200 DEG C, purification rate
It can be improved 105Times, therefore allow in integral arrangement, it, can be appropriate if you need to the contracting clarification time under the premise of strength of structural materials is enough
Heating is carried out to working medium or is at higher running temperature within the scope of allowable temperature.
The present embodiment is described in further detail below with reference to theoretical calculation:
According to formula 2,3, reacted by impurity element with metallic element the equilibrium constant (including lithium and getter material),
Relationship between the equilibrium constant and Gibbs energy can be calculated such as formula 4, through the purified impurity equilibrium concentration of hot trap.
Wherein: Gibbs energy G unit is kJ/mol；Molar gas constant R is 8.314J/ (mol*K), and reaction temperature T is mono-
Position is K；M is the relative atomic weight of corresponding impurity element；ρ is the density of lithium under operating temperature, unit kg/m3。
AA+bB=cC+dD, Δ Hf (1)
G=-RT ln Keq (3)
It is titanium, yttrium and the purified impurity balance of three kinds of getters of zirconium under different temperatures with reference to the accompanying drawings shown in 6 to 8
Concentration.According to the corresponding purification rear impurity content of different getter materials, being applicable in for this kind of getter material can be effectively judged
Property, and determine its operating temperature.
It is one of the present embodiment hot trap system layout schematic diagram referring to shown in attached drawing 9.It can be seen in figure 9 that yttrium
Hot trap device is in parallel with the compound thermal trap device being made of titanium getter element and zirconium getter component, wherein yttrium hot trap device
In have multiple yttrium getter elements, quantity can be flexibly adjusted according to need of work, similarly for by titanium getter group
Part and zirconium getter component composition compound thermal trap device, getter element quantity thereon be also according to job requirement flexibly into
Row increase and decrease.
Hot trap is connected in the liquid lithium circuit driven by electromagnetic pump 2, mainly includes inlet tube 32, outlet 33, tank body
31, temperature control system and getter element.Temperature control system includes electric heater unit, insulating layer and air cooling system.Heating device is equal
It is even to be wrapped on the outside of tank body, it is used to keep the temperature working medium lithium, and prevent lithium from solidifying (180 DEG C of fusing point).Part operating temperature is lower than back
The hot trap of road transport trip temperature needs additional controllable air cooling system to reach better clean-up effect to control the running temperature of hot trap.
Hot trap outside is uniform, reasonably wraps up insulating layer, reduces scattering and disappearing for heat.In hot trap be equipped with thermocouple trap 36, built-in thermocouple, with
The measurement of lithium Temperature of Working is carried out, realizes the control of hot trap running temperature.When work, since hot trap is connected to high temperature lithium circuit system
In, therefore hot trap is filled with working medium and to vacuumize together with circuit before, carry out gas displacement, and integrally carries out testing leakage to circuit,
The pollution caused to avoid survival gas in circuit.When hot trap works, inlet tube 32 flows into working medium lithium from below, flows through getter
Component.Getter element can effectively absorb the impurity in lithium, achieve the purpose that purification.Lithium after purified goes out from top
Mouthful pipe 33 flows out, and returns in lithium circuit, wherein each hot trap import and export pipe 33 has respective valves, can control hot trap unlatching,
It closes.Lithium working medium can be full of hot trap when running by hot trap, and stand a period of time, and purified lithium liquid is then flow back to lithium and is returned
Lu Zhong；Lithium circuit can also be allowed constantly to flow through hot trap under the driving of electromagnetic pump 2, lasting purification is carried out to working medium.
Finally, it should be noted that the purification method of the lithium also can be generalized in the preparation process of high purity lithium.Control at present
The cleanliness of lithium simple substance processed can only start in terms of material purity, and this purification means of hot trap can be in the lithium that preparation is completed directly
Getter is added, and controls the storage temperature of lithium, to realize the absorption of nonmetallic inclusion, achievees the purpose that purification.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of high temperature lithium circuit purification hot trap system, it is characterised in that: the hot trap system includes the lithium for holding liquid lithium
Storage tank, for the lithium recycling can of lithium after reclaiming clean, the pipeline being connected between the lithium storage tank and lithium recycling can, be arranged in pipe
Electromagnetic pump on road and be arranged on the pipeline one group are for carrying out the hot trap device of purification operation to lithium, and every group
The hot trap device includes tank body, the outlet being arranged in the tank body, inlet tube and is used to carry out liquid lithium net
Be turned at least one set of getter element of industry, getter element described in every group include for nonmetallic inclusion in liquid lithium into
The getter of row Adsorption and supporting mechanism for the getter to be fixedly mounted on to the tank interior, wherein institute
It states outlet and inlet tube to be connected with the pipeline respectively, flows into tank body and the intracorporal liquid lithium outflow of tank for liquid lithium.
2. a kind of high temperature lithium circuit purification hot trap system according to claim 1, it is characterised in that: when the hot trap fills
When being set to multiple groups, hot trap device described in multiple groups is mounted on the pipeline enclosure by way of serial or parallel connection.
3. a kind of high temperature lithium circuit purification hot trap system according to claim 1 or 2, it is characterised in that: the air-breathing
Agent is any one or more of titanium, yttrium and three kinds of zirconium.
4. a kind of high temperature lithium circuit purification hot trap system according to claim 3, it is characterised in that: when the getter
When for titanium, being used to support the supporting mechanism of titanium getter in the getter element includes to be made of titanium sponge as getter
Encapsulant layer, the encapsulant layer outer surface is set silk screen, be vertically arranged in the encapsulant layer interposition
The positioning pipe set and the support plate that the silk screen bottom end is set, wherein the silk screen and the positioning pipe and inner tank wall
It is fixed by welding connected.
5. purification hot trap system in a kind of high temperature lithium circuit according to claim 4, it is characterised in that: the titanium sponge is
Spongy titanium material using national standard zero level granularity not less than 30mm is constituted.
6. a kind of high temperature lithium circuit purification hot trap system according to claim 3, it is characterised in that: when the getter
When for yttrium, being used to support the supporting mechanism of yttrium getter in the getter element includes by yttrium ball or yttrium silk as getter
The encapsulant layer of composition, is vertically arranged in the encapsulant layer silk screen that the encapsulant layer outer surface is arranged in
Between position positioning pipe and the support plate of the silk screen bottom end is set, wherein the silk screen and the positioning pipe and tank body
Inner wall is fixed connected by welding.
7. a kind of high temperature lithium circuit purification hot trap system according to claim 6, it is characterised in that: when the filling material
When the bed of material is using yttrium ball, diameter is less than 3mm；When the encapsulant layer is using yttrium silk, string diameter is less than 0.5mm.
8. a kind of high temperature lithium circuit purification hot trap system according to claim 3, it is characterised in that: when the getter
When for zirconium, the supporting mechanism that zirconium getter is used to support in the getter element include the zirconium piece disk that is rolled by zirconium piece with
And the zirconium piece disk positioning pipe at the Gao Pian disk center is set, wherein the disk-like structure that the zirconium piece disk is made up of its underpart
It is mounted in the tank body.
9. a kind of high temperature lithium circuit purification hot trap system according to claim 8, it is characterised in that: each layer zirconium piece
Spacing between disk is 1mm, and rolling pleat width is 5mm between zirconium piece disc layer.
10. a kind of high temperature lithium circuit purification hot trap system according to claim 1, it is characterised in that: the hot trap dress
Setting further includes having temperature control system, and the temperature control system includes electric heater unit, insulating layer and air cooling system, wherein the electricity
Heating device uniform winding is on the outside of the tank body and pipeline, for being kept the temperature to the working medium lithium in it, the air cooling system
It is arranged outside the tank body, for cooling down to the part that needs to cool down in tank body, the insulating layer setting adds in the electricity
On the outside of thermal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859868A (en) * | 2019-01-10 | 2019-06-07 | 中国原子能科学研究院 | A kind of high temperature lithium circuit purification hot trap system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859868A (en) * | 2019-01-10 | 2019-06-07 | 中国原子能科学研究院 | A kind of high temperature lithium circuit purification hot trap system |
| CN109859868B (en) * | 2019-01-10 | 2024-05-10 | 中国原子能科学研究院 | Hot trap system for purifying high-temperature lithium loop |
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