CN114400862A - Liquid metal electromagnetic pump - Google Patents
Liquid metal electromagnetic pump Download PDFInfo
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- CN114400862A CN114400862A CN202210080252.4A CN202210080252A CN114400862A CN 114400862 A CN114400862 A CN 114400862A CN 202210080252 A CN202210080252 A CN 202210080252A CN 114400862 A CN114400862 A CN 114400862A
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- electromagnetic pump
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- metal electromagnetic
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- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 70
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims description 23
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- 229910000976 Electrical steel Inorganic materials 0.000 description 7
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
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- 229910052618 mica group Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- -1 nickel-chromium-nickel-aluminum Chemical compound 0.000 description 1
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Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/02—Electrodynamic pumps
- H02K44/04—Conduction pumps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A liquid metal electromagnetic pump comprising: the pipeline part is provided with an inlet for receiving inflow of liquid metal and an outlet for conveying the liquid metal outwards; the coil part is arranged on the radial outer side of the pipeline part and can generate a magnetic field in the pipeline part when being electrified so as to drive the liquid metal to flow in the pipeline part; a protective case disposed radially outside the coil portion and extending in an axial direction of the pipe portion to cover the coil portion; the fixing part is arranged at a position close to the inlet and the outlet, and two ends of the protective shell in the axial direction are connected with the fixing part; and the control part is used for controlling the current in the coil part, one side of the protective shell is bulged to form an accommodating space, and the control part is arranged in the accommodating space. The liquid metal electromagnetic pump according to the embodiment of the application has a compact structure, and is particularly suitable for systems with miniaturization characteristics.
Description
Technical Field
The application relates to the technical field of electromagnetic pumps, in particular to a liquid metal electromagnetic pump.
Background
As liquid metal electromagnetic pump is used as liquid metal conveying equipment, the liquid metal electromagnetic pump is widely applied due to the advantages of no leakage, strong regulating capability and high reliability, and is particularly applied to the field of nuclear power. However, the liquid metal electromagnetic pump in the prior art is generally applied to a large-scale system, and in some systems with miniaturization features, such as a liquid metal cooling reactor auxiliary system or a related scientific experimental device, a compatible liquid metal electromagnetic pump is lacked.
Disclosure of Invention
In view of the above, the present application has been developed to provide a liquid metal electromagnetic pump that overcomes, or at least partially solves, the above-identified problems.
According to an embodiment of the present application, there is provided a liquid metal electromagnetic pump including: a pipe part provided with an inlet for receiving an inflow of liquid metal and an outlet for delivering the liquid metal outwardly; a coil portion disposed radially outward of the pipe portion, the coil portion being capable of generating a magnetic field within the pipe portion when energized to drive a flow of liquid metal in the pipe portion; a protective case provided radially outside the coil part and extending in an axial direction of the duct part to cover the coil part; the fixing part is arranged at a position close to the inlet and the outlet, and two ends of the protective shell in the axial direction are connected with the fixing part; the control part is used for controlling the current in the coil part, one side of the protective shell is bulged to form an accommodating space, and the control part is arranged in the accommodating space.
The liquid metal electromagnetic pump according to the embodiment of the application has a compact structure, and is particularly suitable for systems with miniaturization characteristics.
Drawings
FIG. 1 is a schematic diagram of a liquid metal electromagnetic pump according to an embodiment of the present application;
fig. 2 is a schematic view of a first magnetizer according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a coil portion according to an embodiment of the present application;
FIG. 4 is a schematic radial cross-sectional view of a conduit portion according to an embodiment of the present application;
FIG. 5 is an axial cross-sectional schematic view of a conduit portion according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described below in detail and completely with reference to the accompanying drawings of the embodiments of the present application. It should be apparent that the described embodiment is one embodiment of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.
It is to be noted that, unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. If the description "first", "second", etc. is referred to throughout, the description of "first", "second", etc. is used only for distinguishing similar objects, and is not to be construed as indicating or implying a relative importance, order or number of technical features indicated, it being understood that the data described in "first", "second", etc. may be interchanged where appropriate. If "and/or" is presented throughout, it is meant to include three juxtapositions, exemplified by "A and/or B" and including either scheme A, or scheme B, or schemes in which both A and B are satisfied.
An embodiment of the present application provides a liquid metal electromagnetic pump, referring to fig. 1, including: a pipe portion 10, the pipe portion 10 being provided with an inlet 101 for receiving an inflow of liquid metal and an outlet 102 for delivering the liquid metal outwardly; a coil part 20, the coil part 20 being disposed radially outside the pipe part 10, the coil part 20 being capable of generating a magnetic field in the pipe part 10 when energized to drive the liquid metal to flow in the pipe part 10; a protective case 30 disposed radially outside the coil portion 20 and extending in the axial direction of the tunnel portion 10 to cover the coil portion 20; a fixing portion 40, the fixing portion 40 being disposed at a position close to the inlet 101 and the outlet 102, both ends of the protective case 30 in the axial direction being connected to the fixing portion 40; and a control part 50 for controlling the current in the coil part 20, wherein one side of the protective shell 30 is bulged to form an accommodating space 31, and the control part 50 is arranged in the accommodating space 31.
In actual use, the inlet 101 and the outlet 102 of the pipe section 10 may be connected to corresponding pipe joints, the coil section 20 is disposed at the radial outer side of the pipe section 10, when the coil section 20 is energized, an alternating magnetic field is generated in the pipe section 10, the magnetic field penetrates the liquid metal in the pipe section 10 and generates a sympathetic current, and the current interacts with the magnetic field to generate a force in the direction of an external alternating secondary traveling wave to push the liquid metal to advance in the pipe section 10, and a person skilled in the art determines the specific position where the coil section 20 is disposed, the winding manner of the coil section 20, and the like according to actual conditions, and the invention is not limited in detail.
The liquid metal may be an alkali metal such as Li, Na, K, NaK alloy, Rb, Cs, or any other suitable metal, and may be directly applied to the metal that is liquid at room temperature, and for the metal that is solid at room temperature, it may be necessary to provide a heating device at the joint (for example, at the inlet 101) of the pipe portion 10 to ensure that the metal entering the pipe portion 10 is liquid metal, and the liquid metal may be heated by the vortex induction effect after entering the pipe portion 10, so that the metal may not be solidified.
The fixing portion 40 is used to fix the protective shell 30, the fixing portion 40 may be a device such as a fixing flange or other fixing devices, and the protective shell 30 may be fixed to the fixing portion 40 by a suitable method such as a screw, a bolt, a snap, a welding, and the like, which can be selected by a person skilled in the art according to actual needs.
One side of the protective case 30 may be bulged to form an accommodating space 31, and the control part 50 may be disposed in the bulged space 31. The protective shell 30 may be an integrated structure, or may be formed by splicing a plurality of shells, which is not particularly limited. In some embodiments, a partition may be formed in the accommodating space 31 to isolate the control part 50 from the coil part 20 to some extent, and in some embodiments, the partition may not be provided. In some embodiments, the control part 50 may be fixed to the inner wall of the protective case 30, and may also be fixed to the pipe part 10.
Unlike the large electromagnetic pump apparatus in the related art, in the liquid metal electromagnetic pump according to the embodiment of the present application, two main functional components, namely, the coil part 20 and the control part 50, and most of the pipeline part 10 are covered by the protective casing 30, so that the entire liquid metal electromagnetic pump has a more compact structure, and is particularly suitable for systems with miniaturization features, such as a reactor auxiliary system or various related scientific experimental devices.
In some embodiments, due to the harsh operating environment in application scenarios such as reactors, neutron and gamma radiation are a problem that must be faced by the equipment in addition to the higher working medium temperature. Generally, the working temperature of the electromagnetic pump medium can reach 525 ℃, and the neutron and gamma cumulative dose generally exceeds 1019N/cm2And 109Gy, so the materials used for the components of the liquid metal electromagnetic pump must be available for use by irradiation demonstrations or verifications. Preferably, the material of the basic structure of the liquid metal electromagnetic pump can be selected without modification, and the temperature is recommended to be 525 ℃ or below for long-term use and can work at 550 ℃ for short time. The structural material of the pipeline part 10 is preferably made of 316 or 316H austenitic stainless steel, has good high-temperature mechanical properties, and is compatible with an alkali metal working medium. The construction material of the protective shell 30 is preferably 304 or 316L austenitic stainless steel to reduce cost.
In some embodiments, a vent hole 32 may be provided on the protective case 30, and the vent hole 32 may be used for the flow of air to cool the coil part 20, the control part 50, the duct part 10, and the like to some extent by natural air. In some embodiments, a temperature measuring device (not shown in the figures) may be provided to measure the temperature of the parts, such as the pipe portion 10, the coil portion 20, and the control portion 50, which are prone to heat generation, and when the temperature exceeds the standard, the measures such as stopping, reducing the frequency, assisting in cooling, etc. may be taken in time to perform the treatment, so as to avoid the damage to the liquid metal electromagnetic pump. Preferably, the temperature measuring means may be a thermocouple, and it is recommended to use a nickel-chromium-nickel-aluminum type sheathed insulation type thermocouple having good irradiation resistance characteristics.
In some embodiments, the control portion 50 may include an axially extending electrical terminal board 51 of the pipe portion 10, and the shape of the accommodating space 31 may be adapted to the electrical terminal board 51, such an arrangement may further reduce the overall volume of the liquid metal electromagnetic pump. The electric wiring board 51 can control the current intensity, the frequency and the like in the coil part 20 so as to realize multiple modes of frequency modulation, current regulation, pressure regulation and power regulation of the liquid metal electromagnetic pump, is suitable for different types of control systems, can modulate any P-Q characteristic combination in an operation envelope line, and is particularly suitable for being used by scientific test devices with wide operation ranges. Preferably, the electrical wiring board 51 may be made of a-type alumina ceramic or polyimide to increase its irradiation resistance. In some embodiments, the control portion 50 may also include a communication device that may be connected to the electrical patch panel 51 to enable remote control.
In some embodiments, referring to fig. 1, the liquid metal electromagnetic pump further includes a first magnetically permeable assembly 60, the first magnetically permeable assembly 60 being disposed between the coil portion 20 and the protective shell 30, the first magnetically permeable assembly 60 being connected to the fixing portion 40 to fix the coil portion 20 to the pipe portion 10, and when an electric current is passed through the coil portion 20, the electric current is capable of generating a magnetic field in the pipe portion 10 under the action of the first magnetically permeable assembly 60. That is, the first magnetic conductive assembly 60 can simultaneously generate and guide the magnetic field and fix the coil part 20, which can reduce the fixing cost of the coil part 20 and facilitate the assembly and manufacture of the liquid metal electromagnetic pump and the replacement of parts.
In some embodiments, referring to fig. 1 and 2, the first magnetic conductive assembly 60 may include a plurality of first magnetic conductors 61, the plurality of first magnetic conductors 61 are disposed along a circumferential direction of the pipe portion 10, each first magnetic conductor 61 extends along an axial direction of the pipe portion 10, and both ends of each first magnetic conductor 61 are connected to the fixing portion 40. Preferably, the first magnetic conductive assembly 60 may include 6 to 8 first magnetic conductors 61, and the first magnetic conductors 61 may be uniformly arranged along the circumferential direction of the pipe portion 10, so as to ensure that the coil portion 20 is uniformly stressed in all directions, and to avoid large amplitude vibration of the coil portion 20 due to electromagnetic reasons as much as possible. Compared with the use of the integrated first magnetic conductive assembly 60 (for example, a cylindrical first magnetic conductive assembly), the use of the plurality of first magnetic conductors 61 can further reduce the manufacturing cost. In some embodiments, the first magnetic conductor 61 may be formed by stacking silicon steel sheets.
In some embodiments, the protective case 30 and the plurality of first magnetic conductors 61 are detachable from the fixing portion 40 to expose the coil portion 20. In some embodiments, the protective shell 30 and the first magnetizer 61 may be detached when the liquid metal electromagnetic pump is connected to the corresponding pipe, for example, the protective shell 30 may be spliced by a plurality of shells or folded by one shell, and the connection of the plurality of shells or the connection of the folded shell may be detachably disposed, so that after contacting the connection between the protective shell 30 and the fixing portion 40, the protective shell 30 may be detached by contacting the connection of the connection or the connection.
After the protective case 30 is removed, the first magnetic conductor 61 may be further detached from the fixing portion 40, thereby at least partially exposing the coil part 20, thereby enabling in-situ repair of the coil part 20 without removing the liquid metal electromagnetic pump as a whole. In some embodiments, the two ends of the first magnetizer 61 may be connected with the fixing portion 40 in a clamping manner, for example, the two ends of the first magnetizer 61 may be provided with a tenon, and the fixing portion 40 may be provided with a corresponding clamping groove, so that when the first magnetizer 61 is detached, the first magnetizer 61 can be detached in a knocking manner, and further, the overhaul is facilitated.
In some embodiments, referring to fig. 1, the coil part 20 includes a plurality of coils 21 arranged at intervals in an axial direction of the pipe part 10. In such an embodiment, the first magnetic conductor 61 may be formed with a plurality of protrusions 611, and when the first magnetic conductor 61 is connected to the fixing portion 40, each protrusion 611 is caught in a gap between two adjacent coils 21 to fix the coils 21. The specific number of coils 21 can be selected by those skilled in the art, and the number, length and width of the protrusions 611 are adapted to the number of coils 21 and the specific arrangement position, which will not be described in detail herein.
In some embodiments, each coil 21 may include an annular bobbin 211, a conductive wire 212 wound on the annular bobbin 211, and a protective layer 213 covering the outer side of the conductive wire 212. The annular frame 211 can be formed integrally or formed by split splicing, and preferably, the integrally formed annular frame 211 is used to save cost. In the actual assembling process, the annular frame 211 of the coil 21 may be directly sleeved on the pipe portion 10, and then fixed by using the first magnetizer 61. The protection layer 213 may be directly coated on the outer side of the conductive wire 212 after the conductive wire 212 is wound on the annular frame 211, or may be sleeved on the outer side of the conductive wire 212 in the form of a protection ring, and the protection layer 213 in the form of the protection ring can be removed from the outer side of the conductive wire 212 to expose the conductive wire 212, so that, when the coil 21 fails, the conductive wire 212 may be separately replaced without replacing the protection layer 213.
In order to improve the high temperature resistance and radiation resistance of the coil 21, the annular skeleton 211 and the protective layer 213 may be made of α -type alumina, or may be made of aluminum nitride ceramics with better thermal shock resistance, but the aluminum nitride ceramics may bring higher cost compared to the α -type alumina. The wire 212 can adopt dispersed copper nickel plating or silver as a conductor, and takes radiation-resistant mica insulating ceramic fiber as an outer layer, and both the mica and the ceramic fiber have better radiation resistance, so that the wire 212 is recommended to be subjected to glue and carbon removal after being wound because the mica and the ceramic fiber are generally provided with glue. Preferably, the lead 212 is a flexible lead so that, in the event of a failure, replacement of the lead 212 can be performed in situ directly after removal of the protective covering 213.
In some embodiments, referring to fig. 4 and 5, the pipe portion 10 may include a pipe body 11, a second magnetic conductive assembly 12, and a support 13, the second magnetic conductive assembly 12 and the pipe body 11 being coaxially disposed, the support 13 supporting the second magnetic conductive assembly 12 inside the pipe body 11, so that an annular flow passage 14 for the liquid metal to flow is formed between the pipe body 11 and the second magnetic conductive assembly 12. The annular flow channel 14 can reduce the flow resistance of the liquid metal as much as possible, improve the flow threshold of the cavitation vibration phenomenon of the fluid, and greatly improve the stability of the fluid when the electromagnetic pump of the liquid metal drives the liquid metal.
In some embodiments, the second magnetic conductive assembly 12 may include a housing 121 and a second magnetic conductor 122, the housing 121 forms a vacuum environment therein, and the second magnetic conductor 122 is disposed in the housing 121 and extends along an axial direction of the housing 121. The vacuum environment formed in the casing 121 can ensure the cleanness of the internal environment of the casing, and avoid the possibility of interaction between undesirable gases (such as oxygen) and the second magnetic conductor 122. The second magnetic conductor 122 may be made of silicon steel, in some embodiments, the second magnetic conductor 122 may further include a central magnetic conductor 1221, and a plurality of silicon steel sheets 1222 radially embedded in the central magnetic conductor 1221, specifically, referring to fig. 4, radially arranged grooves may be formed in the central magnetic conductor 1221 along a diameter direction thereof, the silicon steel sheets 1222 are disposed in the grooves, a silicon steel sheet variety with a high temperature radiation-resistant coating is recommended, and a thickness of the silicon steel sheet may be selected from 0.2 mm to 0.5mm, for example: 0.35mm, the silicon steel sheet 1222 can block the formation of the lateral induced current, thereby improving the working efficiency of the liquid metal electromagnetic pump and the fluid stability of the liquid metal during working.
In some embodiments, referring to fig. 5, the housing 121 may include: a first casing 1211 and two second casings 1212 respectively provided at both ends of the first casing 1211, the first casing 1211 is cylindrical, and an inner diameter of each of the second casings 1212 is gradually reduced in a direction away from the first casing 1211. In such an embodiment, the entire housing 121 is torpedo-shaped, and the second housing 1212 with two tapered inner diameters can provide good flow guiding to reduce the resistance of the liquid metal flowing into the annular flow channel 14. In order to secure a vacuum environment inside the housing 121, the first housing 1211 and the second housing 1212 may be sealed by electron beam welding.
In some embodiments, the supporting member 13 may include two main supporting pieces 131 respectively connected to two second housings 1212, as shown in fig. 5, an end of the main supporting piece 131 away from the second housing 1212 may be fixed to the tube 11, and an end of the main supporting piece 131 close to the second housing 1212 may be screwed to the second housing 1212, but other suitable connection manners may be selected to support the second magnetically conductive assembly 12 in the tube 11.
In some embodiments, referring to fig. 4, in addition to the two main support pieces 131 at both ends, a plurality of auxiliary support pieces 132 disposed outside the second magnetic conductive assembly 12 along the axial direction of the second magnetic conductive assembly 12 may be further included, so as to further ensure the stability of the support. It should be noted that the main support 131 and the auxiliary support 132 are provided with openings for the flow of the liquid metal. Also, it is desirable to ensure that the main support 131 and the auxiliary support 132 do not affect the efficiency of the flow, for example, in some embodiments, the leading edge and the trailing edge of the main support 131 and the auxiliary support 132 along the axial direction of the pipe portion 10 may be designed in a circular arc shape, so as to better conform to the hydraulic characteristics and reduce the resistance to the flow of the liquid metal.
In some embodiments, the pipe 11 may include a first pipe 111 and two second pipes 112 respectively disposed at both ends of the first pipe 111, and the second pipes 112 are partially inserted into the first pipe 111 and are fittingly coupled with the main support 131. Specifically, referring to fig. 5, one end of the main support piece 131 away from the second magnetic conductive assembly 12 may be formed with one or more protrusions, and the second tube 112 may be provided with corresponding grooves, so as to form a fitting connection with the main support piece 131 after the second tube 112 is inserted into the first tube 111, in such an embodiment, the main support piece 131 can also play a certain positioning role, and of course, a person skilled in the art can select other ways to perform the fitting connection between the main support piece 131 and the second tube 112. An end of the second pipe 112 away from the first pipe 111 may be used for connecting with a corresponding pipeline, and a person skilled in the art may set the end according to an actual application scenario, which is not limited in particular. In some embodiments, the outer side of the first pipe 111 may be provided with an insulating layer 113, and the insulating layer 113 is mainly used to prevent some liquid metal from solidifying during the pumping process, and also to reduce the heat conduction of the pipe portion 10 to the first magnetic conductive assembly 60 and the coil portion 20.
It should be noted that although the second pipe 112 is connected with the main support 131 in a matching manner, the second pipe 112 and the first pipe 111 need to be welded to ensure the sealing performance of the whole pipeline 10, preferably by electron beam welding, but may be welded by tungsten gas shield or other suitable methods when the conditions are not met.
In some embodiments, to further ensure the hermeticity of the pipe section 10, non-destructive inspection of the welds of the various components of the pipe section 10, such as inspection using ultrasound, eddy currents, radiation, coloration, etc., may be performed, and in some embodiments, pressure testing and hermeticity testing may be performed in addition or in the alternative.
In some embodiments, to further ensure cleanliness of the interior of the pipe section 10, the structural material in contact with the liquid metal requires cleaning followed by vacuum degassing for assembly welding, and cleanliness during assembly welding needs to be ensured.
For the embodiments of the present application, it should also be noted that, in a case of no conflict, the embodiments of the present application and features of the embodiments may be combined with each other to obtain a new embodiment.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and the scope of the present application shall be subject to the scope of the claims.
Claims (14)
1. A liquid metal electromagnetic pump comprising:
a pipe part provided with an inlet for receiving an inflow of liquid metal and an outlet for delivering the liquid metal outwardly;
a coil portion disposed radially outward of the pipe portion, the coil portion being capable of generating a magnetic field within the pipe portion when energized to drive a flow of liquid metal in the pipe portion;
a protective case provided radially outside the coil part and extending in an axial direction of the duct part to cover the coil part;
the fixing part is arranged at a position close to the inlet and the outlet, and two ends of the protective shell in the axial direction are connected with the fixing part;
the control part is used for controlling the current in the coil part, one side of the protective shell is bulged to form an accommodating space, and the control part is arranged in the accommodating space.
2. The liquid metal electromagnetic pump of claim 1, wherein a vent is provided on the protective casing.
3. The liquid metal electromagnetic pump of claim 1, wherein the control portion includes an electrical terminal plate extending in an axial direction of the pipe portion, the receiving space being shaped to accommodate the electrical terminal plate.
4. The liquid metal electromagnetic pump of any one of claims 1-3, further comprising:
the first magnetic conduction assembly is arranged between the coil part and the protective shell, is connected with the fixing part so as to enable the coil part to be fixed on the pipeline part, and generates a magnetic field in the pipeline part by acting together with the coil part when the coil part is electrified.
5. The liquid metal electromagnetic pump of claim 4, wherein the first magnetically conductive assembly includes a plurality of first magnetically conductive bodies disposed along a circumferential direction of the pipe portion, each of the first magnetically conductive bodies extends along an axial direction of the pipe portion, and both ends of each of the first magnetically conductive bodies are connected to the fixing portion.
6. The liquid metal electromagnetic pump of claim 5, wherein the protective case and the plurality of first magnetizers are detachable from the fixing portion to expose the coil portion.
7. The liquid metal electromagnetic pump of claim 5 or 6, wherein the coil portion includes a plurality of coils spaced axially of the pipe portion.
8. The liquid metal electromagnetic pump of claim 7, wherein each of the first magnetic conductors is formed with a plurality of protrusions, each of the protrusions snapping into a gap between two adjacent coils to secure the coils when the first magnetic conductor is coupled to the securing portion.
9. The liquid metal electromagnetic pump of claim 7, wherein each of the coils comprises:
the wire that winds on the annular skeleton to and cover be in the protective layer in the wire outside.
10. The liquid metal electromagnetic pump of claim 1, wherein the pipe section comprises:
the second magnetic conduction assembly and the pipe body are coaxially arranged, and the support supports the second magnetic conduction assembly inside the pipe body, so that an annular flow channel for flowing of liquid metal is formed between the pipe body and the second magnetic conduction assembly.
11. The liquid metal electromagnetic pump of claim 10, wherein the second magnetically permeable assembly comprises:
a housing forming a vacuum environment therein;
and the second magnetizer is arranged in the shell and extends along the axial direction of the shell.
12. The liquid metal electromagnetic pump of claim 11, wherein the housing comprises:
the first casing with set up respectively two second casings at first casing both ends, first casing is the tube-shape, every the second casing internal diameter reduces gradually in the direction that deviates from first casing.
13. The liquid metal electromagnetic pump of claim 12, wherein the support member includes two main support members coupled to the two second housings, respectively.
14. The liquid metal electromagnetic pump of claim 13, wherein the pipe body comprises:
the first body and set up respectively two second bodies at first body both ends, the second body partially inserts first body and with main tributary holds piece cooperation and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080252.4A CN114400862A (en) | 2022-01-24 | 2022-01-24 | Liquid metal electromagnetic pump |
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| CN202210080252.4A CN114400862A (en) | 2022-01-24 | 2022-01-24 | Liquid metal electromagnetic pump |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06189521A (en) * | 1992-12-18 | 1994-07-08 | Toshiba Corp | Immersed electromagnetic pump |
| WO2013146684A1 (en) * | 2012-03-28 | 2013-10-03 | 三菱重工メカトロシステムズ株式会社 | Electromagnetic pump, quench tank and liquid metal loop |
| CN106451996A (en) * | 2016-10-25 | 2017-02-22 | 中国原子能科学研究院 | Liquid-state metal electromagnetic pump for space nuclear environment |
| CN112803713A (en) * | 2021-01-29 | 2021-05-14 | 中国原子能科学研究院 | Liquid metal electromagnetic pump |
| CN113054779A (en) * | 2021-03-23 | 2021-06-29 | 中国原子能科学研究院 | Electromagnetic coil for liquid metal electromagnetic pump and paint dipping and curing method thereof |
| CN215580694U (en) * | 2021-07-14 | 2022-01-18 | 佛山市顺德区金泰德胜电机有限公司 | Compact motor for aerial work platform |
-
2022
- 2022-01-24 CN CN202210080252.4A patent/CN114400862A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06189521A (en) * | 1992-12-18 | 1994-07-08 | Toshiba Corp | Immersed electromagnetic pump |
| WO2013146684A1 (en) * | 2012-03-28 | 2013-10-03 | 三菱重工メカトロシステムズ株式会社 | Electromagnetic pump, quench tank and liquid metal loop |
| CN106451996A (en) * | 2016-10-25 | 2017-02-22 | 中国原子能科学研究院 | Liquid-state metal electromagnetic pump for space nuclear environment |
| CN112803713A (en) * | 2021-01-29 | 2021-05-14 | 中国原子能科学研究院 | Liquid metal electromagnetic pump |
| CN113054779A (en) * | 2021-03-23 | 2021-06-29 | 中国原子能科学研究院 | Electromagnetic coil for liquid metal electromagnetic pump and paint dipping and curing method thereof |
| CN215580694U (en) * | 2021-07-14 | 2022-01-18 | 佛山市顺德区金泰德胜电机有限公司 | Compact motor for aerial work platform |
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