CN111404354A - Electromagnetic pump structure - Google Patents
Electromagnetic pump structure Download PDFInfo
- Publication number
- CN111404354A CN111404354A CN202010115917.1A CN202010115917A CN111404354A CN 111404354 A CN111404354 A CN 111404354A CN 202010115917 A CN202010115917 A CN 202010115917A CN 111404354 A CN111404354 A CN 111404354A
- Authority
- CN
- China
- Prior art keywords
- iron core
- urceolus
- outer iron
- electromagnetic pump
- pull rod
- 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.)
- Pending
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention discloses an electromagnetic pump structure, and relates to the technical field of pumps; including the urceolus, be located the urceolus inner tube, a plurality of outer iron core that are located the urceolus outside, place in the coil assembly of the inslot of outer iron core, be located the cushion that is used for supporting the inner tube between urceolus and the inner tube, still including the heat insulating mattress of parcel in the urceolus outside, the heat insulating mattress is located between outer iron core and the urceolus, outer iron core is rectangular shape structure, the axis of coil assembly is parallel with the axis of urceolus, outer iron core uses the axle of urceolus to be the annular array and arranges as the center, the both ends cover of heat insulating mattress is equipped with the backup pad, outer iron core is located between the backup pad, the both ends of. The heat insulating pad greatly reduces the heat transferred from the outer cylinder to the coil assembly, thereby reducing the temperature of the coil assembly and reducing the failure rate.
Description
Technical Field
The invention belongs to the technical field of pumps, and particularly relates to an electromagnetic pump structure.
Background
Electromagnetic pumps are used to transport liquid metals. Because the liquid metal is very high in temperature, the liquid metal transfers heat to the outer iron core through the outer barrel, the temperature of the outer iron core is very high, the requirement on the heat resistance of the coil on the outer iron core is very high, and the failure rate of the coil is high.
Disclosure of Invention
The invention aims to overcome the defect of high coil failure rate in the prior art, and provides an electromagnetic pump structure with low coil failure rate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an electromagnetic pump structure, includes the urceolus, is located the urceolus inner tube, a plurality of outer iron core that are located the urceolus outside, places in the coil assembly of the inslot of outer iron core, is located the cushion that is used for supporting the inner tube between urceolus and the inner tube, still including the heat insulating mattress of parcel in the urceolus outside, the heat insulating mattress is located between outer iron core and the urceolus, outer iron core is rectangular shape structure, the axis of coil assembly is parallel with the axis of urceolus, outer iron core uses the axle of urceolus to be the annular array and arranges as the center, the both ends cover of heat insulating mattress is equipped with the backup pad, outer iron core is located between the backup pad, the. The heat insulating pad greatly reduces the heat transferred from the outer cylinder to the coil assembly, thereby reducing the temperature of the coil assembly and reducing the failure rate.
Preferably, a fixing plate is arranged on one side, away from the outer iron core, of the supporting plate, a second heat insulation pad is clamped between the supporting plate and the fixing plate, the fixing plate is fixedly connected to the outer barrel, the supporting plate is connected with the fixing plate, the fixing plate at one end of the outer barrel is welded to the outer barrel, and the fixing plate at the other end of the outer barrel adopts a floating structure to adapt to axial thermal expansion of the outer barrel. The support plate functions to support the fixing plate, and the second heat insulating mat reduces heat transferred from the fixing plate to the support plate.
Preferably, one side, close to the outer barrel, of the outer iron core is matched with the heat insulation pad, one side, close to the outer barrel, of the outer iron core is attached to the heat insulation pad, limiting blocks are arranged at two ends of the outer iron core, two ends of the outer iron core are welded with the limiting blocks, and the limiting blocks and the supporting blocks are combined through bolts. The limiting block plays a limiting role in the outer iron core, and the outer iron core is abutted against the heat insulation pad, so that the magnetic field in the outer barrel is increased, and the flow rate of the liquid metal is increased.
Preferably, the inner cylinder comprises a cylindrical section and conical sections at two ends of the cylindrical section for reducing fluid resistance. The conical section is advantageous for reducing the resistance to the flow of the liquid metal.
Preferably, a cylindrical inner iron core coaxial with the inner iron core is arranged in the inner cylinder, the outer surface of the inner iron core is attached to the inner surface of the cylinder section, end plates are arranged at two ends of the inner iron core, a pull rod penetrates through the inner iron core and penetrates through the end plates, a pull rod nut is connected to the pull rod in a threaded mode, the end plates are located between the pull rod nuts, and the pull rod nut abuts against the corresponding end plates. The pull rod has pull force, so that the inner iron core is a compressed whole body all the time during operation.
Preferably, the outer cylinder and the inner cylinder are both made of austenitic stainless steel. Has good high temperature resistance.
Preferably, the number of the outer cores is 8. The magnetic field is increased, so that the volumes of the outer cylinder and the inner cylinder can be increased, and the capacity of the pump is increased.
The invention has the beneficial effects that: because the invention does not have the rotating part of the traditional pump, a sealing element is not needed, and the safety and the reliability are greatly improved; the noise and the vibration are small; because the outer iron core is tightly close to the outer cylinder, the magnetic field is large, so the invention has the characteristics of large flow and large capacity; the heat insulation pad and the second heat insulation pad are additionally arranged, so that the temperature of the outer iron core is reduced, and the failure rate of the coil is reduced.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
In the figure: the device comprises an outer cylinder 1, an inner cylinder 2, an outer iron core 3, a cushion block 4, a supporting plate 5, a heat insulation pad 6, a fixing plate 7, a second heat insulation pad 8, a limiting block 9, a cylinder section 12, a cone head section 13, an inner iron core 14, an end plate 15, a pull rod 16 and a pull rod nut 17.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example (b):
see fig. 1-2; an electromagnetic pump structure comprises an outer cylinder, an inner cylinder positioned in the outer cylinder, 8 outer iron cores positioned outside the outer cylinder, a coil group placed in a groove of the outer iron cores, and a cushion block positioned between the outer cylinder and the inner cylinder and used for supporting the inner cylinder, wherein the outer cylinder and the inner cylinder are made of austenitic stainless steel; the outer iron core is arranged in an annular array by taking the shaft of the outer barrel as the center, supporting plates are sleeved at two ends of the heat insulation pad, the outer iron core is positioned between the supporting plates, and two ends of the outer iron core are fixedly connected with the corresponding supporting plates; a fixing plate is arranged on one side, away from the outer iron core, of the supporting plate, a second heat insulation pad is clamped between the supporting plate and the fixing plate, the fixing plate is fixedly connected to the outer barrel, the supporting plate is connected with the fixing plate, the fixing plate at one end of the outer barrel is welded with the outer barrel, and the fixing plate at the other end of the outer barrel adopts a floating structure to adapt to axial thermal expansion of the outer barrel; the side, close to the outer barrel, of the outer iron core is matched with the heat insulation pad, the side, close to the outer barrel, of the outer iron core is attached to the heat insulation pad, limiting blocks are arranged at two ends of the outer iron core, two ends of the outer iron core are welded with the limiting blocks, and the limiting blocks and the supporting blocks are fastened by bolts; the inner cylinder comprises a cylindrical cylinder section and conical head sections which are positioned at two ends of the cylinder section and used for reducing the fluid resistance; the inner barrel is internally provided with a cylindrical inner iron core which is coaxial with the inner barrel, the outer surface of the inner iron core is attached to the inner surface of the cylindrical section, end plates are arranged at two ends of the inner iron core, a pull rod penetrates through the inner iron core and penetrates through the end plates, a pull rod nut is connected to the pull rod in a threaded mode, the end plates are located between the pull rod nuts, and the pull rod nut abuts against the corresponding end plates.
Principle of embodiment:
the liquid metal is filled between the outer cylinder 1 and the inner cylinder 2, three-phase alternating current is conducted on the coil set to form a magnetic field, the magnetic field induces current on the liquid metal, and the induced current interacts with the magnetic field, so that the liquid metal flows from one end of the outer cylinder 1 to the other end.
Heat insulating mattress 6 reduces the heat and transmits outer iron core from urceolus 1, fixed plate 7 can be transmitted for to 1 heat of urceolus, second heat insulating mattress 8 reduces the heat and transmits backup pad 5 for from fixed plate 7, stopper 9 passes through bolt and backup pad 5 rigid coupling, stopper 9 plays limiting displacement, outer iron core supports and leans on heat insulating mattress 6, it is very close to 1 distance with the urceolus, increase magnetic field, therefore, benefit from powerful magnetic field, in this embodiment, the volume of urceolus and inner tube all is greater than the volume on the market far away, thereby flow and velocity have been increased, adopt urceolus and inner tube of austenite stainless steel, the heat resistance is good, and the intensity is high.
Claims (7)
1. The utility model provides an electromagnetic pump structure, includes the urceolus, is located the urceolus inner tube, a plurality of outer iron core that are located the urceolus outside, places in the coil assembly of the inslot of outer iron core, is located the cushion that is used for supporting the inner tube between urceolus and the inner tube, its characterized in that, still including the heat insulating mattress of parcel in the urceolus outside, the heat insulating mattress is located between outer iron core and the urceolus, outer iron core is rectangular shape structure, the axis of coil assembly is parallel with the axis of urceolus, outer iron core uses the axle of urceolus to be the annular array and arranges as the center, the both ends cover of heat insulating mattress is equipped with the backup pad, outer iron core is located between the backup pad, the.
2. The electromagnetic pump structure according to claim 1, wherein a fixing plate is disposed on a side of the supporting plate away from the outer core, a second heat insulation pad is sandwiched between the supporting plate and the fixing plate, the fixing plate is fixedly connected to the outer cylinder, the supporting plate is connected to the fixing plate, the fixing plate at one end of the outer cylinder is welded to the outer cylinder, and the fixing plate at the other end of the outer cylinder adopts a floating structure to adapt to axial thermal expansion of the outer cylinder.
3. The electromagnetic pump structure according to claim 1, wherein the side of the outer iron core close to the outer cylinder is matched with the heat insulation pad, the side of the outer iron core close to the outer cylinder is attached to the heat insulation pad, the two ends of the outer iron core are provided with limit blocks, the two ends of the outer iron core are welded with the limit blocks, and the limit blocks and the support blocks are fastened by bolts.
4. An electromagnetic pump structure according to claim 1, wherein the inner cylinder comprises a cylindrical section, tapered sections at both ends of the cylindrical section for reducing fluid resistance.
5. The electromagnetic pump structure according to claim 4, wherein a cylindrical inner iron core is disposed in the inner cylinder, the inner iron core is coaxial with the inner iron core, the outer surface of the inner iron core is attached to the inner surface of the cylindrical section, end plates are disposed at both ends of the inner iron core, a pull rod penetrates through the inner iron core, the pull rod penetrates through the end plates, pull rod nuts are connected to the pull rod through threads, the end plates are disposed between the pull rod nuts, and the pull rod nuts abut against the corresponding end plates.
6. An electromagnetic pump structure according to claim 1, wherein the outer and inner cylinders are both of austenitic stainless steel.
7. An electromagnetic pump structure according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein the number of said outer cores is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115917.1A CN111404354A (en) | 2020-02-25 | 2020-02-25 | Electromagnetic pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115917.1A CN111404354A (en) | 2020-02-25 | 2020-02-25 | Electromagnetic pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111404354A true CN111404354A (en) | 2020-07-10 |
Family
ID=71430416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010115917.1A Pending CN111404354A (en) | 2020-02-25 | 2020-02-25 | Electromagnetic pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111404354A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803713A (en) * | 2021-01-29 | 2021-05-14 | 中国原子能科学研究院 | Liquid metal electromagnetic pump |
| CN114640235A (en) * | 2022-05-09 | 2022-06-17 | 浙江大学 | Electromagnetic pump |
| CN115395757A (en) * | 2022-05-09 | 2022-11-25 | 浙江大学 | Electromagnetic pump |
| CN117543856A (en) * | 2023-11-27 | 2024-02-09 | 西比里电机技术(苏州)有限公司 | Electromagnetic pump with multilayer heat dissipation channels |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978290A (en) * | 2016-06-23 | 2016-09-28 | 北京原丰科技开发总公司 | Lightweight core electromagnetic pump |
| 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 |
-
2020
- 2020-02-25 CN CN202010115917.1A patent/CN111404354A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978290A (en) * | 2016-06-23 | 2016-09-28 | 北京原丰科技开发总公司 | Lightweight core electromagnetic pump |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803713A (en) * | 2021-01-29 | 2021-05-14 | 中国原子能科学研究院 | Liquid metal electromagnetic pump |
| CN112803713B (en) * | 2021-01-29 | 2022-06-28 | 中国原子能科学研究院 | Liquid metal electromagnetic pump |
| CN114640235A (en) * | 2022-05-09 | 2022-06-17 | 浙江大学 | Electromagnetic pump |
| CN115395757A (en) * | 2022-05-09 | 2022-11-25 | 浙江大学 | Electromagnetic pump |
| CN117543856A (en) * | 2023-11-27 | 2024-02-09 | 西比里电机技术(苏州)有限公司 | Electromagnetic pump with multilayer heat dissipation channels |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |
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| RJ01 | Rejection of invention patent application after publication |