CN111939603B - Particulate matter remove device in liquid metal gallium working medium - Google Patents
Particulate matter remove device in liquid metal gallium working medium Download PDFInfo
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- CN111939603B CN111939603B CN202010590885.0A CN202010590885A CN111939603B CN 111939603 B CN111939603 B CN 111939603B CN 202010590885 A CN202010590885 A CN 202010590885A CN 111939603 B CN111939603 B CN 111939603B
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- working section
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- protruding
- wall
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052733 gallium Inorganic materials 0.000 title claims abstract description 32
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 18
- 239000013618 particulate matter Substances 0.000 title claims abstract description 13
- 239000011362 coarse particle Substances 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000003570 air Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000001089 thermophoresis Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- QHLAXAJIDUDSSA-UHFFFAOYSA-N magnesium;zinc Chemical compound [Mg+2].[Zn+2] QHLAXAJIDUDSSA-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a particulate matter removing device in a liquid metal gallium working medium, which comprises a removing pipeline, wherein a fluid inlet, a coarse particle working section, a coating working section, an air-entrapping working section, a protruding working section and a fluid outlet are sequentially arranged on the removing pipeline; a coating is arranged on the inner wall of the coating working section; a plurality of coarse particles are arranged on the inner wall of the coarse particle working section; one end of the gas filling working section is connected with the gas inlet, and the other end of the gas filling working section is connected with the gas filling body outlet; a plurality of protruding parts are arranged on the inner wall of the protruding working section; wherein the pipe diameter of the rough particle working section is smaller than that of the coating working section; the pipe diameter of the coating working section is larger than that of the air-entrapping working section; the pipe diameter of the air-entrapping working section is smaller than that of the protruding working section. The invention can remove the particulate matters, thereby protecting the environment and ensuring the normal operation of the system and the health of personnel. Has important future applicability.
Description
Technical Field
The invention belongs to the field of energy including nuclear energy and the field of electronic industry, relates to a small-sized reactor adopting liquid gallium metal as a working medium and some electronic and electric equipment adopting liquid gallium metal as the working medium, and particularly relates to a particulate matter removing device in the liquid gallium metal working medium.
Background
As a room temperature liquid metal, gallium-based alloys have a much higher thermal conductivity than water or other organic based liquids. Therefore, gallium-based alloys have long been used as cooling media. Liu Jing et al first proposed the use of gallium-based liquid alloys for heat dissipation in computer chips. In 2008, the first liquid metal CPU radiator in the world is produced. Subsequently, gallium-based alloys are receiving increasing attention as heat transfer media, and their application is also expanding to the field of heat dissipation of high power density LEDs, micro devices. In the current stage, with the upgrade of electronic products such as mobile phones, computers, cameras and the like, the chip integration level is higher and higher. Thermal barrier issues with high power densities become a bottleneck to further improve integration. Electronic product thermal designers need a fluid with extremely high thermal conductivity, and exploration of liquid metal heat dissipation technology is based on this need. At present, liquid metal is successfully applied to heat dissipation systems of electronic products such as a CPU, an LED and the like. Luo Manli et al have advanced the concept of a blade radiator technology and have demonstrated that this is a large class of very compact liquid metal heat spreaders. For the reactor, savada et al suggested that a compact fast reactor could be manufactured by using liquid metal fuel and heat exchange medium gallium at high temperature, and combining the heat exchange medium gallium with the liquid metal fuel Pu-Fe alloy. However, the liquid metal heat dissipation technology applied to the heat exchange performance in the reactor core channel of the small reactor is studied at home and abroad.
At present, dust removal equipment at home and abroad mainly aims at more thermal power plants, is mainly effective on large particles, and mainly aims at more flue gas or air working media. For example: a device and a method for removing fine particles by multi-field cooperation (application publication number CN 110180295A). Experimental research for promoting removal of fine particles by steam phase change in LIFAC flue gas desulfurization is also carried out by university of Dongnan. Applicant Zhou Tao has also conducted studies on deposition of particulate matter in media such as supercritical water reactors and lead metals, but gallium metal has not been studied in small reactors as a novel coolant, and because of the characteristics of the metal media, the influence and deposition of particulate matter on the convective heat transfer are less studied. Due to the small bulk, the thermophysical properties of liquid gallium are considered, so that particles can be generated inherently and in operation, and a series of heat transfer and safety problems can be caused.
The device for removing the particles in the liquid metal gallium working medium is a novel advanced device which can solve the problem of the particles in the heat exchange equipment taking the metal gallium as the working medium. Therefore, the normal operation and the safety of the system equipment can be ensured, the environment can be protected, and the health of staff can be ensured. More importantly, the device can also be matched with various related equipment to provide the working efficiency of the device, and has important industrial application value.
Disclosure of Invention
In order to solve the problems, the invention provides a particulate matter removing device in a liquid metal gallium working medium, and the working principle of the device is that not only is the comprehensive effects of turbulence force, thermophoresis force, gravity, brownian force and the like utilized to remove particulate matters, but also the effects of air entrainment, material modification, roughness improvement, sudden expansion and shrinkage and the like are adopted to strengthen the adsorption and removal effects on the particles.
The particulate matter removing device in the liquid metal gallium working medium comprises a removing pipeline, wherein a fluid inlet, a coarse particle working section, a coating working section, an air-entrapping working section, a protruding working section and a fluid outlet are sequentially arranged on the removing pipeline; a coating is arranged on the inner wall of the coating working section; a plurality of coarse particles are arranged on the inner wall of the coarse particle working section; one end of the gas filling working section is connected with the gas inlet, and the other end of the gas filling working section is connected with the gas filling body outlet; a plurality of protruding parts are arranged on the inner wall of the protruding working section; wherein the pipe diameter of the rough particle working section is smaller than that of the coating working section; the pipe diameter of the coating working section is larger than that of the air-entrapping working section; the pipe diameter of the air-entrapping working section is smaller than that of the protruding working section.
The invention is further improved in that: wherein the removal pipe is arranged in the cooling channel, wherein the outer wall of the removal pipe flows the coolant, and the flow direction of the coolant can be concurrent flow or countercurrent flow.
The invention is further improved in that: the removing pipeline is arranged in the external space, and the outer wall of the removing pipeline flows the coolant, wherein the flowing direction of the coolant adopts cross flow, and a natural circulation mode can also be adopted.
The invention is further improved in that: wherein a plurality of coarse particles are uniformly or unevenly arranged on the inner wall of the coarse particle working section along the flow direction of the gallium metal.
The invention is further improved in that: wherein the coarse particles are spherical or water-drop-shaped, and the size of the coarse particles is micron or nanometer or combination of coarse particles; the material adopts temperature-resistant metal or nonmetal or temperature-resistant metal and nonmetal are arranged in a crossing way. Plays a role in stirring the flow field, increasing the turbulence effect and promoting the deposition of particles.
The invention is further improved in that: the coating is made of alloy materials or ceramics or composite materials; wherein the thickness of the coating is 10nm-500um. Through the super-hydrophobic characteristic of the surface of the coating, dust and dirt can be taken away when water passes through the surface, so that the self-cleaning of the surface of an object is formed, and corrosion is prevented.
The invention is further improved in that: the protruding part is a protruding object or honeycomb sponge metal. Adding turbulence deposition, honeycomb sponge metal increases flow area, increases thermophoresis and turbulence deposition, filters for corrosion prevention, and promotes particle deposition.
The invention is further improved in that: the added gas can be air, carbon dioxide, inert gas, nitrogen or water vapor. Inert gas or nitrogen may be added with a gas cylinder or other gas source device. The water vapour may be generated by a heating device. The addition of gas increases the natural circulation capacity of metal, also increases turbulence and thermophoresis effect, and promotes the deposition of particles in liquid metal gallium working medium.
The invention is further improved in that: the protruding part is made of simple substance materials or alloy materials; wherein the simple substance material is zinc or magnesium or silicon. The heat exchange can be increased by adding magnesium; zinc addition can reduce pipeline corrosion.
The invention is further improved in that: the section of the removal pipeline is diamond-shaped, square-shaped, round-shaped or the shapes are used alternately.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2a, a cross-sectional view of a coarse particle working section;
FIG. 2b, a cross-sectional view of a coarse particle working section;
FIG. 3, a cross-sectional view of a coating working segment;
FIG. 4, a cross-sectional view of a protruding working section;
list of reference numerals:
fig. 1 reference numerals: 1-inflow of liquid gallium working fluid containing particulate matters; 2-gas inlet port; 3-coolant concurrent flow; 4-countercurrent coolant, 5-flowing out liquid gallium working fluid containing particles; 6-coolant cross flow; 7-a coarse particle working section; 8-coating working section; 9-an air-entrapping working section; 10-projecting the working section; 11-coarse particles; 12-coating; 13-protrusions or cellular sponge metal, 14-gas-entraining body outlet.
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1 and 3: the particulate matter removing device in the liquid metal gallium working medium comprises a removing pipeline, wherein the cross section of the removing pipeline is circular.
The removing pipeline is sequentially provided with a fluid inlet 1, a coarse particle working section 7, a coating working section 8, an air-entrapping working section 9, a protruding working section 10 and a fluid outlet 5; the inner wall of the coating working section 8 is provided with a coating 12; a plurality of coarse particles 11 are arranged on the inner wall of the coarse particle working section 7; wherein a number of coarse particles 11 are arranged uniformly or non-uniformly on the inner wall of the coarse particle working section 7 in the flow direction of metallic gallium.
Wherein one end of the gas filling working section 9 is connected with the gas inlet 2, and the other end is connected with the gas filling body outlet 14; the inner wall of the protruding working section 10 is provided with a plurality of protruding parts 13;
wherein the pipe diameter of the rough particle working section 7 is smaller than that of the coating working section 8; the pipe diameter of the coating working section 8 is larger than that of the air-entrapping working section 9; the pipe diameter of the air-entrapping working section 9 is smaller than that of the protruding working section 10; due to the characteristics of the connecting surface shape, a sudden expansion and contraction effect can be formed, so that the particle removal effect is more facilitated.
Wherein the outer wall of the removal conduit is flowing with coolant, wherein the flow direction of the coolant may be either by coolant co-current 3 or coolant counter-current 4 or coolant cross-current 6.
As shown in fig. 2 a: wherein the shape of the coarse particles 11 is spherical;
as shown in fig. 2 b: the shape of the coarse particles 11 adopts a water drop shape;
wherein the coarse particles 11 are in the size of micro-or nano-or coarse-grained combinations; the material adopts temperature-resistant metal or nonmetal or temperature-resistant metal and nonmetal are arranged in a crossing way.
As shown in fig. 3: the coating 12 is made of alloy material or ceramic or composite material; wherein the thickness of the coating 12 is 10nm-500um.
As shown in fig. 4: the protruding part 13 is honeycomb sponge metal; the fixed protrusions increase turbulence deposition, the cellular sponge metal increases flow area, thermophoresis and turbulence deposition are increased, filtration is preserved, and particle deposition is promoted.
The gas may be air, carbon dioxide, an inert gas, nitrogen or water vapor. May be fed from the 2 gas inlet and out the gas outlet 14. Inert gas or nitrogen may be added with a gas cylinder or other gas source device. The water vapour may be generated by a heating device.
The protruding part 13 is made of simple substance material or alloy material; wherein the simple substance material is zinc or magnesium or silicon.
When the reactor is in operation, particulate matter enters through the fluid inlet 1; the particles are deposited near the coarse particles 11 due to turbulence effect caused by the roughness of the coarse particle working section 7, thermophoresis effect caused by the cooling wall and temperature gradient of the wall surface of the pipe, and the fine particles are removed; particles enter the coating working section 8, and thermophoresis and turbulent flow deposition are increased due to the enhanced resistance and heat exchange characteristics of the coating, so that the effect of particle deposition is promoted, and the effects of corrosion resistance and wear resistance are achieved; the particulate matter enters the gas-filling working section 9, and the natural circulation capacity of the metal is improved due to the addition of gas, so that turbulence and thermophoresis effect are also improved, and the deposition of the particulate matter in the liquid metal gallium working medium is promoted.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features.
Claims (6)
1. The utility model provides a particulate matter remove device in liquid metal gallium working medium which characterized in that: the device comprises a removal pipeline, wherein a fluid inlet (1), a coarse particle working section (7), a coating working section (8), an air-entrapping working section (9), a protruding working section (10) and a fluid outlet (5) are sequentially arranged on the removal pipeline; the inner wall of the coating working section (8) is provided with a coating (12); a plurality of coarse particles (11) are arranged on the inner wall of the coarse particle working section (7); one end of the gas filling working section (9) is connected with the gas inlet (2) and the other end is connected with the gas filling body outlet (14); a plurality of protruding parts (13) are arranged on the inner wall of the protruding working section (10); wherein the pipe diameter of the rough particle working section (7) is smaller than that of the coating working section (8); the pipe diameter of the coating working section (8) is larger than that of the air-entrapping working section (9); the pipe diameter of the air-entrapping working section (9) is smaller than that of the protruding working section (10); the removing pipeline can be arranged in the cooling channel, wherein the outer wall of the removing pipeline flows with the coolant, and the flowing direction of the coolant can be downstream or countercurrent; wherein the coarse particles (11) are spherical or water drop-shaped, and the size is micron or nanometer or coarse and fine particles; the material adopts temperature-resistant metal or nonmetal or temperature-resistant metal and nonmetal are arranged in a crossing way; the coating (12) is made of alloy material or ceramic or composite material; wherein the thickness of the coating (12) is 10nm-500um; the protruding part (13) is a protruding part or honeycomb-shaped sponge metal.
2. The device for removing particulate matters from liquid gallium working medium according to claim 1, wherein the device is characterized in that: wherein the removal pipe can be placed in the cooling space and the outer wall flows the coolant, wherein the flow direction of the coolant adopts a cross flow or natural circulation mode.
3. The device for removing particulate matters from liquid gallium working medium according to claim 1, wherein the device is characterized in that: wherein a plurality of coarse particles (11) are uniformly or unevenly arranged on the inner wall of the coarse particle working section (7) along the flow direction of the metallic gallium.
4. The device for removing particulate matters from liquid gallium working medium according to claim 1, wherein the device is characterized in that: the gas passing through the gas inlet (2) adopts one of air, carbon dioxide, inert gas, nitrogen or water vapor.
5. The device for removing particulate matters from liquid gallium working medium according to claim 1, wherein the device is characterized in that: the protruding part (13) is made of simple substance material or alloy material; wherein the simple substance material is zinc or magnesium or silicon.
6. The device for removing particulate matters from liquid gallium working medium according to claim 1, wherein the device is characterized in that: the section of the removal pipeline is diamond-shaped, square-shaped, round-shaped or the shapes are used alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590885.0A CN111939603B (en) | 2020-06-24 | 2020-06-24 | Particulate matter remove device in liquid metal gallium working medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590885.0A CN111939603B (en) | 2020-06-24 | 2020-06-24 | Particulate matter remove device in liquid metal gallium working medium |
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| Publication Number | Publication Date |
|---|---|
| CN111939603A CN111939603A (en) | 2020-11-17 |
| CN111939603B true CN111939603B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010590885.0A Active CN111939603B (en) | 2020-06-24 | 2020-06-24 | Particulate matter remove device in liquid metal gallium working medium |
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| Country | Link |
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| CN (1) | CN111939603B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591437A (en) * | 1982-06-04 | 1986-05-27 | Leif Ernryd Ab | Apparatus for separating solid particles from a liquid |
| JP2002035573A (en) * | 2000-07-07 | 2002-02-05 | Uop Llc | Method for removing hydride in liquid metal heat exchange fluid |
| CN204558040U (en) * | 2015-04-01 | 2015-08-12 | 华北电力大学 | In nuclear reactor coolant, particle removes device |
| CN105895185A (en) * | 2016-06-20 | 2016-08-24 | 南华大学 | Particle remover with supercritical carbon dioxide as working medium |
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| CN212998549U (en) * | 2020-06-24 | 2021-04-20 | 东南大学 | Device for removing particulate matters in liquid metal gallium working medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8337706B2 (en) * | 2007-10-14 | 2012-12-25 | 1612017 Alberta Ltd. | Solids removal system and method |
-
2020
- 2020-06-24 CN CN202010590885.0A patent/CN111939603B/en active Active
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| US4591437A (en) * | 1982-06-04 | 1986-05-27 | Leif Ernryd Ab | Apparatus for separating solid particles from a liquid |
| JP2002035573A (en) * | 2000-07-07 | 2002-02-05 | Uop Llc | Method for removing hydride in liquid metal heat exchange fluid |
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| CN111939603A (en) | 2020-11-17 |
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