KR20190125904A - Dc conduction type electromagnetic pump - Google Patents

Abstract

According to an embodiment of the present invention, disclosed is a DC conduction type electromagnetic pump which comprises: a duct in which a conductive fluid including a molten metal flows in a longitudinal direction; a first conductive plate and a second conductive plate having one end in contact with both sides of the duct in a direction vertical to the longitudinal direction of the duct so as to apply current to the duct; a permanent magnet arranged to be spaced a predetermined distance in a current carrying direction of the current of the duct; and an upper core and a lower core including a permanent magnet coupling unit which is formed to protrude toward the permanent magnet on one surface and is in contact with the permanent magnet so as to be coupled with the permanent magnet and a duct adjacent unit which is formed to protrude toward the duct and to be spaced the predetermined distance from the duct, and individually arranged at both sides of the direction which is vertical to both the longitudinal direction of the duct and the current carrying direction of the current.

Description

DC conduction electromagnetic pump {DC CONDUCTION TYPE ELECTROMAGNETIC PUMP}

The present invention relates to a direct current conductive electromagnetic pump, and more particularly, to a direct current conductive electromagnetic pump for flowing a conductive fluid including molten metal using a flow of permanent magnets and direct current.

In general, an electromagnetic pump is a pump that circulates a conductive fluid such as a liquid metal or a molten salt by an electric current and a magnetic field from an external power source. There are two types of electromagnetic pumps, one for direct current and one for alternating current, and is operated on the principle of magnetohydrodynamics. Electromagnetic pump has no parts such as impeller and motor, so it can operate silently.

Electromagnetic pumps can be utilized in pumping systems that require no noise. For example, it can be used for various living conditions such as hot water mats in homes, tanks for raising noise-sensitive fish, and dialysis pumps for stable treatment of hospital patients. In addition, electromagnetic pumps are characterized by silent operation and almost no failure rate, resulting in high-temperature molten aluminum metal transfer pumps, next-generation nuclear power test facilities and sodium metal circulation pumps in next-generation nuclear power plants (SFRs), general sailing ship thrusters, and nuclear fuel. It can also be used for main facilities and military equipment.

These DC-conductive electromagnetic pumps do not yet have a company that utilizes systematic technology development or manufactures / supplies such equipments. This is a field that requires a high level of technical skills. I would say big.

In this regard, as a conventional technique, a fluid pump is disclosed in Japanese Laid-Open Patent Publication No. 2011-166933.

It is an object of the embodiment to provide a direct current conductive electromagnetic pump for transferring conductive fluid using the principles of magnetohydrodynamics.

In addition, it is possible to increase the efficiency compared to the power by using a permanent magnet, and to provide a DC conductive electromagnetic pump that is easy to maintain.

In addition, it is to provide a direct current conductive electromagnetic pump that separates the permanent magnet from the duct and insulates the permanent magnet from being reduced in magnetism by heat.

Disclosed is a direct current conductive electromagnetic pump according to an embodiment.

The DC conductive electromagnetic pump is provided with a duct in which a conductive fluid containing molten metal flows in the longitudinal direction from the inside thereof, and one end of the duct is in contact with each other in a direction perpendicular to the longitudinal direction of the duct, so that current flows in the duct. The first conductive plate and the second conductive plate, a permanent magnet disposed at a predetermined interval in the conduction direction of the current of the duct, permanent magnet coupling portion protruding toward the permanent magnet formed on one surface in contact with the permanent magnet And an upper core which protrudes toward the duct and includes a duct adjacent part protruding to a length spaced apart from the duct, and disposed on both sides of a direction perpendicular to both the longitudinal direction of the duct and the energization direction of the current. And a lower core.

According to one side, the upper core and the lower core may have a cross-section of the "凹" shape in one direction.

According to one side, provided on the duct side of the permanent magnet, the first cover to protect the permanent magnet from the heat dissipated from the duct and provided on the opposite side of the duct of the permanent magnet to the outside of the permanent magnet It may further include a second cover to protect from the effect of.

According to one side, the first conductive plate and the second conductive plate may include a contact portion in which one end is in contact with the duct and a terminal portion protruding upward from the other end of the contact portion, the cable is connected to the upper end.

According to one side, the first conductive plate is disposed between the duct and the permanent magnet, the terminal portion is arranged to pass through the upper core, is provided between the upper core and the terminal portion of the first conductive plate It may further include an insulating member for insulating.

According to one side, the upper core is formed with an arrangement hole through which the terminal portion and the insulating member of the first conductive plate is formed, the arrangement hole is reduced in the cross-sectional area of a portion of the upper core from the duct to the upper core It is possible to reduce the conduction of radiated heat to the permanent magnet.

According to one side, a first through hole through which the first conductive plate is coupled through, and a second through hole through which the second conductive plate is coupled through is formed, and may further include an upper cover disposed on the upper core. .

According to one side, it may further include a third cover coupled to the duct side of the upper core and the lower core, is provided in a form surrounding the second conductive plate, the support portion for supporting the upper cover on the top have.

According to one side, one end of the upper cover is coupled to the upper core and the other end is coupled to the support portion, it is coupled through a plurality of adjustment screws, can be coupled to enable the height adjustment of the upper cover to the depth of tightening the adjustment screw. .

According to one side, the duct is formed between the inlet, the inlet through which the conductive fluid flows, the discharge portion through which the conductive fluid is discharged, and the inlet and the discharge portion, the first conductive plate and the second conductive plate contact It may include a conductive portion.

According to one side may further include a connector for connecting the transfer pipe and the duct.

According to one side the connector may be a Lok fitting.

According to one side, the duct may be formed of a material having a melting point higher than the temperature of the molten metal.

According to one side, the duct adjacent portion may be formed in a shape in which both edges of the longitudinal direction of the duct chamfered or rounded.

According to an embodiment, the conductive fluid may be transferred using a principle of magnetohydrodynamics without providing rotating parts such as a motor and an impeller, and thus may be utilized as a transfer pump of hot molten metal.

In addition, the rotating parts are not provided, and the use of the permanent magnet is less power, can increase the efficiency compared to the power, and can be easy to maintain.

In addition, by separating the permanent magnet from the duct and insulated, it is possible to prevent the permanent magnet from being reduced in magnetism by heat.

1 is a perspective view of a DC conductive electromagnetic pump according to an embodiment.
2 is an exploded perspective view of a DC conductive electromagnetic pump according to an embodiment.
3 is a cross-sectional view of the DC conductive electromagnetic pump taken along the cut line III-III according to the embodiment.
4 is a cross-sectional view of the DC-conducting electromagnetic pump taken along the cut line VI-VI according to the embodiment.

This patent application claims priority based on Patent Application No. 2018-0050057, filed April 30, 2018, the entire contents of which are hereby incorporated by reference.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the embodiment, when it is determined that the detailed description of the related well-known configuration or function interferes with the understanding of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but between components It will be understood that may be "connected", "coupled" or "connected".

In the present specification, the upper or lower portion means the upper or lower portion in FIG. 3. Hereinafter, a direct current conductive electromagnetic pump will be described with reference to FIGS. 1 to 4.

1 is a perspective view of a DC conductive electromagnetic pump according to an embodiment, FIG. 2 is an exploded perspective view of a DC conductive electromagnetic pump according to an embodiment, and FIG. 3 is a cutaway line III- of a DC conductive electromagnetic pump according to an embodiment. Sectional view taken along III.

1 to 3, the direct current conductive electromagnetic pump 1 has a direction in which a direct current is formed perpendicularly to a direction in which a magnetic field is formed, and in the duct 11, one direction in which a conductive fluid is perpendicular to the direct current and a magnetic field. To form a force that can flow. Therefore, the DC conductive electromagnetic pump 1 does not move parts, does not need a part in contact with the conductive fluid, the parts are not damaged, and noiseless operation may be possible.

The DC conductive electromagnetic pump 1 transfers conductive fluids such as molten metal and molten salt. For example, the DC conductive electromagnetic pump 1 is a transfer pump of a die casting apparatus for transferring molten metal in which molten metals such as zinc (Zn) and aluminum are melted, a sodium circulation pump in a nuclear power plant, and a conductive salt containing molten salt. It can be utilized in the transfer pump of the conductive fluid, such as a fluid transfer pump. The DC conductive electromagnetic pump 1 includes a duct 11, a first conductive plate 12, a second conductive plate 13, a permanent magnet 14, an upper core 15, and a lower core 16. .

In the duct 11, a conductive fluid containing molten metal flows in the longitudinal direction. Duct 11 is provided with a metal material having a higher heat resistance than the molten metal, it may be suitable for molten metal transfer. For example, the duct 11 may be formed of a metal material having a melting point of 400 ° C. to 4000 ° C., and may be selected and used as a metal material having heat resistance higher than the temperature of the molten metal flowing therein. Here, the duct 11 may be formed of a stainless steel material having heat resistance of 1400 to 1600 ° C. when transferring molten metals such as aluminum, zinc, sodium, lithium, magnesium, lead, cadmium, and tin. .

The duct 11 is formed between the inlet 111 through which the conductive fluid flows, the discharge part 112 through which the conductive fluid is discharged, and the inlet 111 and the discharge part 112, and thus, the first conductive plate 12. And a conductive part 113 in contact with the second conductive plate 13. For example, the inlet portion 111 and the discharge portion 112 may be a cylindrical tubular shape and the conductive portion 113 in order to uniformly contact the first conductive plate 12 and the second conductive plate 13. It may have a rectangular tubular shape with an opening inside. In addition, the conductive portion 113 may be a material that conducts electricity. The first conductive plate 12 and the second conductive plate 13 may be coupled to the conductive portion 113 so that a current may be conducted in a direction perpendicular to the longitudinal direction of the duct 11. In this case, the current may be supplied to the first conductive plate 12 and the second conductive plate 13 along the surface of the conductive portion 113, and the current may be supplied to the molten metal.

The first conductive plate 12 and the second conductive plate 13 are provided with both ends of the duct 11 in contact with each other in a direction perpendicular to the longitudinal direction of the duct 11, so that the duct 11 has a low voltage. Energize high current. The first conductive plate 12 and the second conductive plate 13 protrude upward from the other ends of the contact portions 121 and 131 and one end of the contact portion 121 and 131 which are in contact with the duct 11 so that a cable is connected to the upper end. Terminal portions 122 and 132 are included. Here, the contact portions 121 and 131 may have a thickness smaller than the side surface of the conductive portion 113 or may be combined with the same thickness. The contact parts 121 and 131 are brazed with the contact surface of the conductive part 113, and the brazing part of the conductive part 113 does not protrude outward from the circumference of the conductive part 113. desirable. When the contact parts 121 and 131 have the same thickness as the side surfaces of the conductive part 113, the edges of the contact parts 121 and 131 or the conductive part 113 may be chamfered or rounded and brazed.

The terminal portions 122 and 132 are provided with terminal holes 123 and 133 so that a low current having a high voltage is energized by combining a cable or a wire terminal.

The permanent magnets 14 are disposed at predetermined intervals in a direction in which current flows through the duct 11. For example, the permanent magnets 14 are disposed at a predetermined interval so that the first conductive plate 12 is located between the duct 11 and the duct 11. The permanent magnets 14 are spaced apart from the first conductive plate 12 to prevent electric current from being supplied to the permanent magnets 14, the upper core 15, and the lower core 16. The permanent magnet 14 may be a neodymium magnet, a ferrite magnet, a samarium cobalt magnet, an alico magnet, a rubber magnet, or the like. Of these, since the conductive fluid flowing through the duct 11 may be a hot molten metal, an alico magnet having excellent stability to temperature may be preferable.

The upper core 15 and the lower core 16 are disposed on both sides perpendicular to both the longitudinal direction of the duct 11 and the application direction of the voltage. For example, the upper core 15 and the lower core 16 may be disposed above and below the duct 11, respectively.

The upper core 15 and the lower core 16 protrude in the permanent magnet direction on one surface of the plate and protrude in the direction of the permanent magnet coupling parts 151 and 161 and the duct 11 which are brought into contact with the permanent magnet 14. Is formed but includes a duct adjacent portion (152, 162) protruding to a length spaced apart from the duct 11 by a predetermined interval. The upper core 15 and the lower core 16 may be provided in a form extending in the longitudinal direction of the "凹" -shaped duct so that the portions protruding from the upper and lower portions may face each other.

Permanent magnet coupling portions 151 and 161 of the upper core 15 and the lower core 16 are coupled to the upper and lower portions of the permanent magnet 14, the duct adjacent to the upper core 15 and the lower core 16 The 152 and 162 are disposed in a form in which the duct 11 is disposed between the adjacent ducts 152 and 162 but spaced apart from each other by a predetermined interval. Duct adjacent portions 152, 162 may not contact the duct 11 to prevent conduction of current and may reduce the transfer of heat of molten metal flowing through the duct 11. In addition, the present invention is not limited thereto, and a spaced apart insulating member (not shown) having excellent heat resistance at a high temperature is provided between the duct adjacent parts 152 and 162 and the duct 11 so that the duct adjacent parts 152 and 162 and the duct 11 are provided. It may also be possible to space between them.

The upper core 15 and the lower core 16 may be a pure iron material that can easily transfer the magnetism from the permanent magnet 14 to the duct coupling parts 152 and 162. In addition, the upper core 15 and the lower core 16 may be in the form of a silicon steel sheet laminated on the core of the pure iron material. The upper core 15 and the lower core 16 may have stronger magnetic properties between the duct adjacent portions 152 and 162 when the silicon steel sheets are stacked.

On the other hand, although not shown in the drawings, the upper core 15 and the lower core 16 has a shape or rounded corners at both ends of the longitudinal direction of the duct 11 of the duct adjacent portions 152 and 162. It can be formed as. The duct adjacent portions 152 and 162 formed at edges at both ends in the longitudinal direction of the duct 11 in a chamfered shape or a rounded shape are formed when the DC conductive electromagnetic pump 1 is driven. 162 can reduce the counter electromotive force formed in the conductive portion 113, so that the efficiency of the DC conductive electromagnetic pump 1 can be further increased.

When current flows through the upper core 15 or the lower core 16, a magnetic field may be generated to reduce the magnetic field transmitted from the permanent magnet 14. In addition, the upper core 15 and the lower core 16 may generate heat by resistance, and when the heat of molten metal flowing through the duct 11 is transferred to the permanent magnet 14, the magnetism may be reduced by heat. The duct adjacent parts 152 and 162 may not be in contact with the duct 11 to prevent a phenomenon in which magnetism decreases due to heat.

Here, the terminal portion 122 of the first conductive plate 12 is disposed in the form of penetrating the upper core 15 between the permanent magnet 14 and the duct 11. The upper core 15 has an arrangement hole 153 through which the terminal portion 122 of the first conductive plate 12 is disposed. In this case, the DC conductive electromagnetic pump 1 may further include an insulating member 17 between the upper core 15 and the terminal portion 122 of the first conductive plate 12. The insulating member 17 is formed of an insulating material that prevents electrical conduction and thermal conduction of rubber, plastic, ceramic, etc. to insulate the upper core 15 and the terminal portion 122 of the first conductive plate 12.

The insulating member 17 prevents current from flowing in the terminal portion 122 of the first conductive plate 12 to the upper core 15, and the arrangement hole 153 is adjacent to the duct 152 of the upper core 15. Some cross-sectional areas can be reduced between 162 and permanent magnet coupling portions 151 and 161 to reduce the conduction of heat radiated from duct 11 to duct adjacent portions 152 and 162 to the permanent magnet.

In the DC conductive electromagnetic pump 1, conductive fluid flows into the inlet 111 of the duct 11, and a cathode is connected to the first conductive plate 12 and a cathode is connected to the second conductive plate 13. The current flows from the first conductive plate 12 to the second conductive plate 13 through the unit 113. The upper core 15 and the lower core 16 are combined with the permanent magnet 14 to form a magnetic field having a magnetic flux density, and a magnetic field is formed between the duct adjacent portions 152 and 162 in a dense form. The conductive fluid inside the duct 11 flows under a force perpendicular to both the direction of the current and the magnetic flux flow direction of the magnetic field.

The permanent magnet 14 is formed because the magnetic field is formed in the entire upper core 15 and the lower core 16 connected to the permanent magnet 14 and the magnetic field is formed in a dense form between the duct adjacent parts 152 and 162. Larger force is generated than the arrangement perpendicular to the current direction, so that the conductive fluid can flow, so that the efficiency of the DC conductive electromagnetic pump 1 can be increased. Here, when the electrodes connected to the first conductive plate 12 and the second conductive plate 13 are inverted with each other, the flow direction of the conductive fluid may be reversed, and the flow velocity of the conductive fluid increases with increasing current. Can be. Such a configuration of the DC conductive electromagnetic pump 1 can reduce the counter electromotive force, thereby increasing the efficiency.

The DC conductive electromagnetic pump 1 further includes a first cover 21, a second cover 22, a third cover 23, and an upper cover 24.

The first cover 21 is provided on the duct 11 side of the permanent magnet 14 to protect the permanent magnet 14 from heat emitted from the duct 11. For example, the first cover 21 is formed of a heat insulating material, and is provided in a form of surrounding the duct 11 side surfaces of the permanent magnet coupling portions 151 and 161 of the upper core 15 and the lower core 16. The heat emitted from the duct 11 may be blocked to prevent the permanent magnet 14 from being exposed to heat.

The second cover 22 is provided in the form of wrapping on the opposite side to the duct 11 of the permanent magnet coupling portions 151 and 161 of the upper core 15 and the lower core 16 to surround the permanent magnet 14 to the outside. Protect from the effects In addition, the second cover 22 may be formed.

The third cover 23 is coupled to the duct 11 side of the upper core 15 and the lower core 16 and is provided in a form surrounding the second conductive plate 13. Here, the third cover 23 may protrude from the surface surrounding the upper core 15 and the lower core 16 and may cause interference. The duct hole 231 into which the duct 11 is inserted is disposed. It may be formed and not interfere. The duct hole 231 may be formed to a sufficient size so as not to contact the duct 11.

 In addition, the third cover 23 has a support 232 for supporting the upper cover 24 is formed on the top. The support part 232 may be provided in a shape in which the upper part of the third cover 23 is bent a predetermined interval and form the same height as the height of the upper surface of the upper core 15 to support the upper cover 24. Here, the support part 232 of the third cover 23 may be bent toward the second conductive plate 13, and may be spaced a predetermined interval so that the edge of the support part 232 does not contact the second conductive plate 13. .

The upper cover 24 has a flat plate shape through which the conductive parts 113 of the first conductive plate 12 and the second conductive plate 13 are penetrated. For example, the upper cover 24 has a first through hole 241 through which the first conductive plate 12 is coupled and a second through hole 242 through which the second conductive plate 13 is coupled. It is disposed on the upper core 15.

4 is a cross-sectional view of the DC-conducting electromagnetic pump taken along the cut line VI-VI according to the embodiment.

Referring to FIG. 4, one end of the upper cover 24 is coupled to the upper core 15, and the other end thereof is coupled to the support 232. At this time, the upper cover 24 is coupled to the upper core 15 and the support portion 232 by a plurality of adjustment screws 50, it is possible to adjust the height of the upper cover 24 by the fastening depth of the adjustment screw (50). Can be combined. For example, a first adjustment hole 243 having a screw thread penetrating the upper surface of the upper cover 24 is provided at one end and the other end thereof, and corresponds to the first adjustment hole 243 located at one end of the upper core 15. The second control hole 154 is formed, the third control hole 233 corresponding to the first control hole 243 located at the other end of the support portion is formed to control the fastening depth of the adjustment screw 50 by the upper cover The height of 24 is adjustable.

In this case, the upper cover 24 is coupled to the first conductive plate 12 and the second conductive plate 13, and the first conductive plate 12 and the second conductive plate 13 are coupled to the duct 11. The height of the duct 11 can be adjusted by adjusting the height of the upper cover 24. In other words, by adjusting the height of the upper cover 24, the height may be adjusted so that the duct 11 does not contact the duct adjacent parts 152 and 162.

The first cover 21, the second cover 22, the third cover 23, and the upper cover 24 form an appearance of the DC conductive electromagnetic pump 1, thereby providing the DC conductive electromagnetic pump 1. It is protected from external influences and made of insulating materials such as ceramics, so that the user can reduce the risk of electric shock. In addition, the first cover 21, the second cover 22, the third cover 23 and the upper cover 24, the heat generated due to the flow of the molten metal of high temperature heat damage to the user or the surrounding device Can prevent coating.

Referring back to FIGS. 1 to 3, the DC-conductive electromagnetic pump 1 is provided at the inlet 111 and the outlet 112 of the duct 11 so that the transfer pipe (not shown) and the duct 11 are provided. It further comprises a connector 30 for connecting. Here, the transfer pipe refers to a pipe provided in the device to which the conductive fluid is transferred.

The connector 30 may be a lock fitting. For example, the connector 30 is a connector body 31 is formed on both sides of the thread in the longitudinal direction and the parallel 32, the back parallel 33, the nut 34 provided on both sides of the thread are sequentially coupled It may be a lock fitting connecting the outer circumferential surface of the inlet 111 and the discharge unit 112 and the outer circumferential surface of the transfer pipe (not shown). The lock fitting is a nut 34 is tightened and by pressing the paral 32 and the back parallel 33 firmly connected between the duct 11 and the transfer pipe to prevent leakage of conductive fluid, hot molten metal It may be a metal material that can transfer.

The DC conductive electromagnetic pump 1 further includes a support 40 coupled to the installation place to support the DC conductive electromagnetic pump 1. The support 40 includes a core support column 41 and a pedestal 42.

The core support column 41 supports the lower core 16. For example, a plurality of core support columns 41 are provided in a cylindrical shape to support the lower core 16. The core support column 41 penetrates the other surface from the support surface of the lower core 16, and a fourth adjustment hole 411 having a thread is formed.

Pedestal 42 is provided in a flat plate shape. The pedestal 42 is formed to penetrate through one surface thereof, and a plurality of fifth adjusting holes 421 corresponding to the fourth adjusting holes 411 and formed with a screw thread are formed. The other surface of the pedestal 42 is disposed at the installation place, and the shape of the pedestal 42 may be modified according to the shape of the installation place.

A surface of the lower core 16 to which the core support column 41 is coupled is provided with a plurality of sixth adjustment holes 163 corresponding to the fourth adjustment holes 411 and formed with threads. Here, the support is a pedestal 42, the core support column is coupled to the adjustment screw 50 of the screw type to pass through the fifth adjustment hole 421, the fourth adjustment hole 411 and the sixth adjustment hole 163 Combining the 41 and the lower core 16, it is possible to adjust the height of the lower core 16 by the fastening depth of the adjustment screw (50).

According to the embodiment, the DC conductive electromagnetic pump may be utilized as a transfer pump for the hot molten metal by transferring the conductive fluid using the principle of magnetohydrodynamics without providing rotating parts such as a motor and an impeller.

In addition, the rotating parts are not provided, and the use of the permanent magnet is less power, can increase the efficiency compared to the power, and can be easy to maintain.

In addition, by separating the permanent magnet from the duct and insulated, it is possible to prevent the permanent magnet from being reduced in magnetism by heat.

Although embodiments have been described with reference to the accompanying drawings as described above, various modifications and variations are possible to those skilled in the art from the above description. For example, the described techniques may be performed in a different order than the described method, and / or components of the described structure, apparatus, etc. may be combined or combined in a different form than the described method, or may be combined with other components or equivalents. Appropriate results can be achieved even if they are replaced or substituted.

1: direct current electromagnetic pump 11: duct
111: inlet 112: discharge
113: conductive unit 12: first conductive plate
121, 131: contact portion 122, 132: terminal portion
123 and 133: terminal hole 13: second conductive plate
14: permanent magnet 15: upper core
151, 161: permanent magnet coupling portion 152, 162: duct adjacent
153: Placement hole 154: Second adjustment hole
16: lower core 163: sixth adjustment hole
17: insulating member 21: first cover
22: second cover 23: third cover
231: duct hole 232: support
233: third adjustment hole 24: upper cover
241: first through hole 242: second through hole
243: first adjusting hole 30: connector
31: connector body 32: parallel
33: backpack 34: nut
40: support 41: core support column
411: fourth adjustment hole 42: pedestal
421: fifth adjusting hole 50: adjusting screw

Claims (14)

A duct through which the conductive fluid containing molten metal flows in the longitudinal direction;
A first conductive plate and a second conductive plate having one end in contact with the duct on both sides of a direction perpendicular to the longitudinal direction of the duct, and conducting a current to the duct;
Permanent magnets spaced at a predetermined interval in the energization direction of the current of the duct; And
A permanent magnet coupling part protruding toward the permanent magnet on one surface and coupled to the permanent magnet, and a duct adjacent part protruding toward the duct and protruding to a length spaced apart from the duct by a length; An upper core and a lower core respectively disposed on both sides of a direction perpendicular to both a longitudinal direction and a current passing direction of the current;
DC conductive electromagnetic pump comprising a.
The method of claim 1,
The upper core and the lower core,
Direct current-conducting electromagnetic pump having a cross-sectional shape of a “凹” shape extending in one direction.
The method of claim 1,
A first cover provided on the duct side of the permanent magnet to protect the permanent magnet from heat emitted from the duct; And
A second cover provided on an opposite side of the duct of the permanent magnet to protect the permanent magnet from external influences;
DC conductive electromagnetic pump further comprising.
The method of claim 1,
The first conductive plate and the second conductive plate,
A contact portion at which one end contacts the duct; And
A terminal portion protruding upward from the other end of the contact portion to which a cable is connected at the upper end;
DC conductive electromagnetic pump comprising a.
The method of claim 4, wherein
The first conductive plate is disposed between the duct and the permanent magnet, the terminal portion is arranged to pass through the upper core,
An insulating member provided between the upper core and the terminal portion of the first conductive plate to insulate it;
DC conductive electromagnetic pump further comprising.
The method of claim 5,
The upper core has an arrangement hole through which the terminal portion of the first conductive plate and the insulating member are disposed.
The placement hole reduces the cross-sectional area of a portion of the upper core to reduce the conduction of heat radiated from the duct to the upper core to the permanent magnet.
The method of claim 5,
An upper cover having a first through hole through which the first conductive plate is coupled and a second through hole through which the second conductive plate is coupled through the upper cover;
DC conductive electromagnetic pump further comprising.
The method of claim 7, wherein
A third cover coupled to the duct side of the upper core and the lower core, the third cover having a shape surrounding the second conductive plate, and having a support part supporting the upper cover;
DC conductive electromagnetic pump further comprising.
The method of claim 8,
The upper cover,
One end is coupled to the upper core and the other end is coupled to the support portion, a direct current coupled electromagnetic pump is coupled to allow the height adjustment of the upper cover to the depth of engagement of the adjustment screw.
The method of claim 1,
The duct,
An inlet through which the conductive fluid is introduced;
A discharge part through which the conductive fluid is discharged; And
A conductive portion formed between the inflow portion and the discharge portion, wherein the first conductive plate and the second conductive plate are in contact with each other;
DC conductive electromagnetic pump comprising a.
The method of claim 1,
A connector connecting the transfer pipe and the duct;
DC conductive electromagnetic pump further comprising.
The method of claim 11,
The connector is a lock fitting (Lok fitting) DC conductive electromagnetic pump.
The method of claim 1,
The duct is a direct current conductive electromagnetic pump is formed of a material having a melting point higher than the temperature of the molten metal.
The method of claim 1,
The duct adjacent portion is a direct current conductive electromagnetic pump is formed in the longitudinal chamfered or rounded corners of the duct.

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