CN112670004A - Liquid metal working medium purification device - Google Patents
Liquid metal working medium purification device Download PDFInfo
- Publication number
- CN112670004A CN112670004A CN202011329877.7A CN202011329877A CN112670004A CN 112670004 A CN112670004 A CN 112670004A CN 202011329877 A CN202011329877 A CN 202011329877A CN 112670004 A CN112670004 A CN 112670004A
- Authority
- CN
- China
- Prior art keywords
- liquid metal
- working medium
- metal working
- wire mesh
- purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000746 purification Methods 0.000 title claims abstract description 62
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 53
- 238000005555 metalworking Methods 0.000 title claims abstract description 50
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000002425 crystallisation Methods 0.000 claims abstract description 16
- 230000008025 crystallization Effects 0.000 claims abstract description 16
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 26
- 229910000799 K alloy Inorganic materials 0.000 claims description 25
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 18
- 229910052726 zirconium Inorganic materials 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 4
- 229910001948 sodium oxide Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001950 potassium oxide Inorganic materials 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910003251 Na K Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000001926 trapping method Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a liquid metal working medium purifying device, which comprises a cylinder, a purifying wire mesh component, a crystallizing wire mesh component and a cooling structure, wherein the purifying wire mesh component is arranged in the cylinder; the cylinder body is provided with an inlet pipe and an outlet pipe, and the purification screen assembly and the crystallization screen assembly are arranged in the cylinder body; the cooling structure is arranged outside the cylinder and cools the crystallized screen assembly; and the liquid metal working medium enters the cylinder body through the inlet pipe, sequentially passes through the purification silk screen assembly and the crystallization silk screen assembly and then is discharged out of the cylinder body through the outlet pipe. The invention has the following beneficial effects: the invention combines the cold trap method and the hot trap method, can simultaneously carry out physical purification and chemical purification, does not need to respectively carry out temperature rise and fall operations on a loop to adapt to different operating temperatures of the cold trap and the hot trap, is simpler and more convenient in operation, and can improve the purification efficiency and speed.
Description
Technical Field
The invention belongs to the field of nuclear industry, and particularly relates to a liquid metal working medium purifying device.
Background
Sodium potassium eutectic (NaK) is a common liquid metal coolant in fast neutron reactors and some small reactor installations, of which oxygen impurities are the predominant non-metallic impurities. The excessive oxygen content easily causes the flow channel blockage or accelerates the corrosion of structural materials and other adverse consequences, and threatens the operation safety of the device, so a special purification device is generally arranged in the sodium-potassium alloy device to remove oxygen impurities.
The melting point of the sodium-potassium alloy with the mass ratio of NaK-78 is-12 ℃, the sodium-potassium alloy is liquid at room temperature, and oxygen impurities in the sodium-potassium alloy mainly exist in the form of sodium oxide because sodium can reduce potassium oxide into sodium oxide and simple substance potassium. Since the solubility of sodium oxide in the sodium-potassium alloy decreases with decreasing temperature, the sodium-potassium alloy can be cooled to a temperature near the saturation temperature, so that oxygen impurities dissolved in the alloy are crystallized and precipitated in the form of sodium oxide, thereby achieving the purification effect. Generally, stainless steel wire mesh is used as a crystallized attachment, the purification method is called a cold trap method or a cold trapping method, and the method can also play a certain role in purifying hydrogen impurities with low solubility in the sodium-potassium alloy.
Saturation solubility Co (in ppm) of oxygen impurities in sodium-potassium alloy and temperature T (in K)The empirical relationship, determined in 1981 by Lindermar et al, is: log10Because Co is 7.09-2795/T (application range 363K-483K), the cold trap method can theoretically purify oxygen impurities in the sodium-potassium alloy to 3 ppm-5 ppm at a cooling temperature of about 100 ℃ according to a saturation solubility formula. However, in actual operation, the impurity concentration generally does not reach an ideal value due to factors such as fluid flushing and regenerative re-dissolution. If the impurities of the sodium-potassium alloy need to be purified to a higher degree, some metals with stronger oxygen binding capacity are generally used for purification. For example, high purity metallic zirconium flakes of about 0.1mm are the most commonly used purification materials that form zirconium oxide by chemical reaction with sodium displacement at high temperatures of about 500 c.
At present, two devices, namely a cold trap and a hot trap, are arranged in some sodium-potassium alloy loops at the same time, and because the cold trap needs to reduce the coolant to a lower temperature, the inlet temperature of the devices cannot be too high when the cold trap runs, and is generally not higher than 400 ℃; while the zirconium hot trap and the circuit run isothermally at around 500 ℃. Therefore, the cold trap and the hot trap can not work simultaneously, certain inconvenience exists in operation, the purification efficiency is low, and the consumed time is long.
In a common sodium and sodium-potassium alloy cold trap, because the inlet temperature is about 400 ℃ generally and the trapping temperature of the cold trap is below 200 ℃ generally, a longer path can not actually perform the trapping function before the liquid metal is cooled to the cooling temperature, and the waste of space is generated.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the liquid metal working medium purification device.
The technical scheme of the invention is as follows:
a liquid metal working medium purification device comprises a cylinder, a purification wire mesh component, a crystallization wire mesh component and a cooling structure; the cylinder body is provided with an inlet pipe and an outlet pipe, and the purification screen assembly and the crystallization screen assembly are arranged in the cylinder body; the cooling structure is arranged outside the cylinder and cools the crystallized screen assembly;
and the liquid metal working medium enters the cylinder body through the inlet pipe, sequentially passes through the purification silk screen assembly and the crystallization silk screen assembly and then is discharged out of the cylinder body through the outlet pipe.
Further, in the liquid metal working medium purifying device, the liquid metal working medium sequentially passes through the purifying wire mesh component and the crystallizing wire mesh component and then enters the outlet pipe through the central pipe.
Furthermore, the liquid metal working medium purification device also comprises a heat return coil, and the liquid metal working medium in the central pipe enters the heat return coil to exchange heat with the liquid metal working medium entering the cylinder from the inlet pipe and then enters the outlet pipe.
Further, in the above liquid metal working medium purification apparatus, the cooling structure further cools the cylinder portion upstream of the crystallizing screen assembly to pre-cool the liquid metal working medium before entering the crystallizing screen assembly.
Further, in the liquid metal working medium purifying device, the inlet pipe and the outlet pipe are arranged at the same end of the cylinder.
Further, in the liquid metal working medium purification device, the cooling structure comprises an air duct and a cooling fan which are arranged around the cylinder body; and the cooling fan drives cold air to enter the air channel to cool the barrel body.
Further, in the above liquid metal working medium purifying device, the liquid metal working medium is a sodium-potassium alloy.
Further, in the liquid metal working medium purification device, the purification wire mesh component is a zirconium metal mesh.
Further, in the liquid metal working medium purification device, the crystallized wire mesh component is a zirconium wire mesh.
The invention has the following beneficial effects:
1. the invention combines the cold trap method and the hot trap method, can simultaneously carry out physical purification and chemical purification, does not need to respectively carry out temperature rise and fall operations on a loop to adapt to different operating temperatures of the cold trap and the hot trap, is simpler and more convenient in operation, and can improve the purification efficiency and speed.
2. The invention fully utilizes the heat recovery area which does not play a purifying role and has higher temperature originally in the cold trap, improves the utilization rate of the internal space of the equipment, and is beneficial to the integral arrangement of the device without arranging a separate hot trap.
3. Through the setting of zirconium silk screen, can solve the impurity redissolution problem that easily appears in traditional cold-trap, its theoretical ultimate purification ability can reduce the oxygen content in the sodium-potassium alloy to below 1ppm, compares traditional cold-trap 10ppm-20 ppm's ultimate ability and has great promotion, reduces the degree of corrosion to the structural material of the sodium-potassium alloy device that needs long-term operation and has showing the effect.
4. The structure can be used for purifying sodium, lithium and other liquid metal working media except for sodium-potassium alloy, and when being used for purifying other working media, the effect of purifying specific non-metal impurities can be realized only by replacing the wire mesh material with the material with other impurities such as O, N, H. When necessary, the wire mesh component can be prepared by mixing 2-3 materials to purify, thereby avoiding the defect that a plurality of independent purifying devices are required to be arranged in the existing liquid metal loop.
5. The invention can also be used for the cold trap structure improvement in large-scale commercial sodium-cooled fast reactor, can further improve the total impurity trapping capacity of the cold trap, and prolongs the service life of the sodium cold trap.
Drawings
Fig. 1 is a schematic structural diagram of a liquid metal working medium purification device of the present invention.
Fig. 2 is a schematic diagram of the liquid metal working medium purification device applied in a loop.
In the above drawings, 1, a drain pipe; 2. a lower end enclosure; 3. a lower perforated baffle; 4. an air duct; 5. a crystallizing screen assembly; 6. a purification screen assembly; 7. a straight cylinder of the shell; 8. a central tube; 9. an upper porous baffle plate; 10. a heat regenerative coil; 11. an upper end enclosure; 12. an outlet pipe; 13. an inlet pipe; 14. a cooling fan; 15. an electromagnetic pump; 16. a main loop; 17. a test section; 18. a stop valve; 19. a purification device.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in FIG. 1, the invention provides a liquid metal working medium purification device, which comprises a cylinder, a purification wire mesh component 6, a crystallization wire mesh component 5 and a cooling structure; the cylinder body is provided with an inlet pipe 13 and an outlet pipe 12, and the purification screen assembly 6 and the crystallization screen assembly 5 are arranged in the cylinder body; the cooling structure is arranged outside the cylinder and cools the crystallized screen assembly 5; the liquid metal working medium enters the cylinder body through the inlet pipe 13, sequentially passes through the purification silk screen component 6 and the crystallization silk screen component 5, and then is discharged out of the cylinder body through the outlet pipe 12.
In this embodiment, except for the wire mesh assembly, the other components are all processed from austenitic stainless steel material. The cylinder body comprises a lower end enclosure 2, a shell straight cylinder 7 and an upper end enclosure 11 and is used for containing liquid metal working media (sodium-potassium alloy working media in the embodiment).
The inlet pipe 13 and the outlet pipe 12 are arranged at the same end of the cylinder; the liquid metal working medium sequentially passes through the purification wire mesh component 6 and the crystallization wire mesh component 5 and then enters the outlet pipe 12 through the central pipe 8. Therefore, the high-temperature liquid metal working medium which just enters the device can exchange heat with the purified low-temperature liquid working medium so as to be rapidly cooled, and the purified low-temperature liquid working medium can also be rapidly reheated so as to meet the temperature requirement of the main process loop as soon as possible, so that the influence on the main loop 16 is reduced. In order to further increase the heat exchange effect, the liquid metal working medium purification device further comprises a heat return coil 10, and the liquid metal working medium in the central pipe 8 enters the heat return coil 10 to exchange heat with the liquid metal working medium entering the cylinder through an inlet pipe 13 and then enters the outlet pipe 12.
In this embodiment, the cooling structure also cools the barrel portion upstream of the crystallizing screen assembly 5 to pre-cool the liquid metal working substance before it enters the crystallizing screen assembly 5. The liquid metal working medium can be crystallized at a proper temperature when entering the crystallizing screen assembly 5 through pre-cooling, so that the space is effectively saved, and the size of the device is reduced.
The cooling structure comprises an air duct 4 and a cooling fan 14 which are arranged around the cylinder body; the cooling fan 14 drives cold air to enter the air duct 4 to cool the barrel.
In this embodiment, the liquid metal working medium is a sodium-potassium alloy, and a scheme that the crystallization wire mesh component 5 and the purification wire mesh component 6 both adopt zirconium wire meshes can be adopted; the upper half part can also adopt a zirconium wire mesh, and the lower half part still adopts the scheme of a traditional stainless steel wire mesh, so that the use amount of the zirconium wire mesh with higher price is reduced. In this embodiment, the zirconium wire mesh and the stainless wire mesh provided by the invention should be made into a gas-liquid filter mesh form with uniform porosity, the mesh number is between 30 meshes and 100 meshes, and the zirconium wire mesh and the stainless wire mesh have a large surface area/volume ratio. The purity of zirconium used by the zirconium wire mesh is not lower than the Zr01 mark (99.2%); the material of the stainless steel wire mesh is S31608 or S30408. The stainless steel wire mesh is cleaned and dried before installation, and the zirconium wire mesh is kept in a dry and clean state during manufacturing and is not cleaned any more to avoid pollution. In order to improve the reaction rate of the zirconium wire mesh, the temperature of the sodium-potassium alloy inlet of the purification equipment is optimally kept between 400 ℃ and 450 ℃, the lowest temperature is not lower than 350 ℃, the flow of the sodium-potassium alloy inlet can be connected in a loop bypass mode and is kept at 0.05m3/h-0.15m3Preferably, the ratio is between/h.
In this embodiment, the inlet pipe 13 and the outlet pipe 12 are connected to the loop pipe by welding, and the sodium-potassium alloy working medium driven by the pump flows in through the inlet pipe 13 at a temperature of about 400 ℃ to 450 ℃, then flows downward through the upper porous baffle 9 with a plurality of openings, and then contacts with the purification wire mesh component 6 made of the zirconium wire mesh, so that a chemical reaction is generated in the part, and the zirconium wire mesh reacts with oxygen impurities in the working medium to purify. And at the same time of purification, a cooling fan 14 outside the shell blows through the air duct 4 on the outer wall of the straight cylinder section through air cooling, so that the working medium is cooled. Therefore, Na in the Na-K alloy continues to flow to the crystallized wire mesh component 5 made of austenitic stainless steel2O is separated out by taking the silk screen as a crystal nucleus because the temperature is lower than the saturation temperature, thereby playing the effect of physical purification of the common cold trap. The stainless steel wire mesh area is purified againAnd then, the sodium-potassium alloy flows out from the lower porous baffle 3 at the bottom, flows out from the central tube 8, and finally flows back to the loop from the outlet tube 12 after being reheated and heated by the reheating coil 10, so that a complete purification process is realized. The drain pipe 1 at the bottom is used for discharging residual sodium-potassium alloy and oxides in the device when the purification capacity is saturated or the loop is retired in the later period, and the joint is sealed by adopting a metal gasket in a loose joint manner in the normal operation process.
In the application of the circuit, as shown in fig. 2, the inlet pipe 13 and the outlet pipe 12 can be connected to the circuit in a bypass method, and the inlet and the outlet of the bypass circuit can be provided with a stop valve 18. The main loop 16 adopts an electromagnetic pump 15 or other circulating pumps to generate a driving pressure head, the loop is also provided with modules such as a heater, a flowmeter, a test section 17 and the like, the main loop 16 is generally made of austenitic stainless steel, and the pipelines connect all devices to carry out various operation or test work. In order to not affect the normal operation, the working medium can bypass into the purification device 19 of the invention at a flow rate of about 10 percent, thereby realizing the purpose of purification while operating.
Before the equipment is connected with the equipment, the equipment should carry out independent equipment leakage detection work, and the rear part of the equipment without a leakage point is confirmed to be connected with a main loop 16; after the connection with the main loop 16 is completed, special leak detection and flaw detection should be performed on the connection point position to avoid the occurrence of alkali metal leakage.
Before filling, the loop and the device of the invention need to be vacuumized together and then filled with argon for protection, and then the sodium-potassium alloy working medium can be pressed into the device by adopting a vacuumizing or argon pressure difference method, so that the device is ensured to be filled with the working medium and has no bubble residue.
After the purification device of the invention runs for a long time, the internal impurities are fully precipitated and reacted, and the replacement treatment method after the saturation state is reached comprises the following steps: emptying the working medium in the main loop 16, wherein residual working medium exists in the equipment; and then, the liquid nitrogen freezing discharge pipe 1 is used, after the sealing joint is loosened, a valve with a joint with a corresponding size is adopted to be connected with the liquid nitrogen freezing discharge pipe 1, and after the discharge pipe 1 is restored to normal temperature, residual working media in the equipment are emptied into a waste working medium collecting tank through valve control, and subsequent further treatment is carried out. The inlet and outlet pipes of the device can be disconnected from the main circuit 16 by cutting, completing the removal of the device. The new equipment may be reconnected to the primary loop 16 by welding, completing a complete equipment replacement process.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (9)
1. A liquid metal working medium purification device is characterized by comprising a cylinder, a purification wire mesh component, a crystallization wire mesh component and a cooling structure; the cylinder body is provided with an inlet pipe and an outlet pipe, and the purification screen assembly and the crystallization screen assembly are arranged in the cylinder body; the cooling structure is arranged outside the cylinder and cools the crystallized screen assembly;
and the liquid metal working medium enters the cylinder body through the inlet pipe, sequentially passes through the purification silk screen assembly and the crystallization silk screen assembly and then is discharged out of the cylinder body through the outlet pipe.
2. The liquid metal working medium purification device of claim 1, wherein liquid metal working medium passes through purification wire mesh component and crystallization wire mesh component in sequence and then enters the outlet pipe through a central pipe.
3. The liquid metal working medium purification device of claim 2, further comprising a heat recovery coil, wherein the liquid metal working medium in the central tube enters the heat recovery coil to exchange heat with the liquid metal working medium entering the barrel from the inlet tube and then enters the outlet tube.
4. The liquid metal working fluid purification apparatus of claim 1, wherein the cooling structure further cools a barrel portion upstream of the crystallization wire mesh assembly to pre-cool the liquid metal working fluid prior to entering the crystallization wire mesh assembly.
5. The liquid metal working medium purification device of claim 1, wherein the inlet pipe and the outlet pipe are disposed at the same end of the cylinder.
6. The liquid metal working medium purification device of claim 1, wherein the cooling structure comprises an air duct and a cooling fan disposed around the barrel; and the cooling fan drives cold air to enter the air channel to cool the barrel body.
7. A liquid metal working medium purification device as claimed in any one of claims 1 to 6, wherein the liquid metal working medium is a sodium potassium alloy.
8. The liquid metal working medium purification device of claim 7, wherein the purification wire mesh component is a zirconium metal mesh.
9. The liquid metal working medium purification device of claim 8, wherein the crystallized wire mesh component is a zirconium wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329877.7A CN112670004B (en) | 2020-11-24 | 2020-11-24 | Liquid metal working medium purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329877.7A CN112670004B (en) | 2020-11-24 | 2020-11-24 | Liquid metal working medium purifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112670004A true CN112670004A (en) | 2021-04-16 |
| CN112670004B CN112670004B (en) | 2024-09-27 |
Family
ID=75403560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011329877.7A Active CN112670004B (en) | 2020-11-24 | 2020-11-24 | Liquid metal working medium purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112670004B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113284640A (en) * | 2021-05-26 | 2021-08-20 | 中国原子能科学研究院 | Floating impurity capturing device for reactor |
| CN113304535A (en) * | 2021-05-26 | 2021-08-27 | 中国原子能科学研究院 | Filtering component for lead-bismuth cooling reactor purifying device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947334A (en) * | 1970-11-11 | 1976-03-30 | Hitachi, Ltd. | Apparatus for purifying sodium |
| JPS5538906A (en) * | 1978-09-06 | 1980-03-18 | Toshiba Corp | Liquid metal purifying apparatus |
| US4693088A (en) * | 1985-08-12 | 1987-09-15 | Commissariat A L'energie Atomique | Cold trap for eliminating impurities from a polluted liquid metal |
| US4830816A (en) * | 1987-10-13 | 1989-05-16 | Westinghouse Electric Corp. | Getter trap for removing hydrogen and oxygen from a liquid metal |
| US6086652A (en) * | 1998-12-29 | 2000-07-11 | Uop Llc | Method and apparatus for initial purification of liquid metal heat exchange fluid |
| CN101231898A (en) * | 2007-12-11 | 2008-07-30 | 中国原子能科学研究院 | Cold trap for radioactive sodium on-line purification |
| RU2608596C1 (en) * | 2015-10-06 | 2017-01-23 | Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") | Fast neutron nuclear reactor with liquid metal coolant |
| 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 |
-
2020
- 2020-11-24 CN CN202011329877.7A patent/CN112670004B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947334A (en) * | 1970-11-11 | 1976-03-30 | Hitachi, Ltd. | Apparatus for purifying sodium |
| JPS5538906A (en) * | 1978-09-06 | 1980-03-18 | Toshiba Corp | Liquid metal purifying apparatus |
| US4693088A (en) * | 1985-08-12 | 1987-09-15 | Commissariat A L'energie Atomique | Cold trap for eliminating impurities from a polluted liquid metal |
| US4830816A (en) * | 1987-10-13 | 1989-05-16 | Westinghouse Electric Corp. | Getter trap for removing hydrogen and oxygen from a liquid metal |
| US6086652A (en) * | 1998-12-29 | 2000-07-11 | Uop Llc | Method and apparatus for initial purification of liquid metal heat exchange fluid |
| CN101231898A (en) * | 2007-12-11 | 2008-07-30 | 中国原子能科学研究院 | Cold trap for radioactive sodium on-line purification |
| RU2608596C1 (en) * | 2015-10-06 | 2017-01-23 | Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") | Fast neutron nuclear reactor with liquid metal coolant |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113284640A (en) * | 2021-05-26 | 2021-08-20 | 中国原子能科学研究院 | Floating impurity capturing device for reactor |
| CN113304535A (en) * | 2021-05-26 | 2021-08-27 | 中国原子能科学研究院 | Filtering component for lead-bismuth cooling reactor purifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112670004B (en) | 2024-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112670004A (en) | Liquid metal working medium purification device | |
| CN103093842A (en) | Cold trap for purifying lead and lead-base alloy | |
| CN112410572A (en) | Melting and purifying device for liquid metal loop | |
| CN112951460A (en) | Cold trap device for filtering and purifying liquid lead-based coolant | |
| CN201126723Y (en) | Cold trap for on-line purification of radiosodium | |
| CN115019991A (en) | Collecting device | |
| CN106337136A (en) | Lead and lead-based alloy online purifying device | |
| CN208413844U (en) | The purifying plant of high yield super clean, high purified hydrofluoric acid | |
| CN112349440B (en) | Liquid metal purification device and application method thereof | |
| CN212512593U (en) | Suspension type cooling unit of fluid cooling | |
| CN109859868B (en) | Hot trap system for purifying high-temperature lithium loop | |
| CN208567550U (en) | Blast furnace slag flushing water waste heat recovery device | |
| CN112066350A (en) | High-temperature slag waste heat recovery system | |
| CN210772111U (en) | Device capable of reducing energy consumption of boiler | |
| CN111841286A (en) | Novel graphite purification residual waste gas treatment device and process | |
| CN114909645B (en) | Primary side cleaning system and method for high-temperature gas cooled reactor steam generator | |
| CN220931100U (en) | Steelmaking steam recovery steam pressure stabilization device | |
| CN217887468U (en) | Diffusion furnace tail gas collecting device | |
| CN215877888U (en) | Carbon black water closed circulation cooling system of natural gas acetylene preparation device | |
| CN210795791U (en) | Freezing continuous crystallization separation purification device of sodium sulfate in industry mixed salt waste water | |
| CN221005988U (en) | Cooling device for raw gas of ferroalloy electric furnace | |
| CN218511510U (en) | Smoke cooler of smelting furnace | |
| CN217155075U (en) | Composite corrosion-resistant heat exchanger | |
| CN212705092U (en) | Water cooling plant is used in robot welding | |
| CN111599497B (en) | A crystallization cooling tube for removing impurity in sodium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |