EMF filter device with improved heat exchange efficiency

Abstract

This invention provides an EMF filter device with improved heat exchange efficiency, enabling the generation of a stronger magnetic field by passing more current through an improved heat exchanger and internal structure of the EMF system. [Solution] The EMF filter device 100 includes a cylindrical filter body 110 with a central tube 115, a plurality of coil sections 120 arranged in a stack to surround the central tube of the filter body, each having a circular coil plate surrounding the central tube and insulating material between the circular coil plates, a plurality of flow path partitions extending from the inner wall of the filter body and in contact with the outer walls of the plurality of coil sections, arranged at predetermined angular intervals on the inner wall of the filter body, a plurality of cooling flow path spacers arranged between the plurality of coil sections, and an insulating oil cooler 150 connected to the filter body to cool the inside of the filter body by circulating cooling oil.

Description

Technical Field

[0001] The present invention relates to an EMF filter device with improved heat exchange efficiency, and more particularly to an EMF filter device with improved heat exchange efficiency for removing magnetic substances contained in materials using an electromagnetic field.

Background Art

[0002] Generally, an electromagnetic filter is a device that passes a powder or a substance in the form of a sol-gel through a strong magnetic field and filters a ferromagnetic material with excellent magnetic permeability using an electromagnetic filter to remove magnetic substances.

[0003] Such an electromagnetic filter is used to perfectly remove trace amounts of weakly magnetic and ferromagnetic substances (iron, STS430) in raw materials based on the principle of concentrating magnetic force to maximize the magnetic force. The magnetic force of the electromagnetic filter can be controlled by electricity and can also be applied as an automatic iron removal method depending on the system configuration during iron removal.

[0004] An iron remover is a device that filters and removes magnetic substances such as iron contained in minerals, polymers, or foods in the form of powder or slurry using electromagnetic force. In recent years, although the iron content contained in secondary battery materials is known as a cause of secondary battery fires, its importance has been increasing.

[0005] When power is applied to such an iron remover, in order to cool the inside of the coil part that generates heat while being magnetized, it has a cooling part. When the temperature of the coil part rises, the oil circulation pump is operated to supply cooling oil to the inside of the coil part through the oil supply pipe. The oil recovery pipe recovers the cooling oil used for cooling in the coil part, and the cooling oil is cooled through an oil cooler and then re-introduced into the case of the coil part.

[0006] Conventional EMF systems like these have problems: as processing capacity increases, resistance increases due to coil heating, which reduces the current that generates the magnetic field, weakening the magnetic field strength, and the heat is not sufficiently released due to the inefficiency of the heat exchanger. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Korean Registered Patent Publication No. 10-2644710 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] To solve the above-mentioned problems, the present invention aims to provide an EMF filter device with improved heat exchange efficiency, which can generate a stronger magnetic field by passing more current through an improved heat exchanger and internal structure of the EMF system. [Means for solving the problem]

[0009] The present invention includes: a cylindrical filter body provided with a central tube; a plurality of coil sections arranged in a stacked manner surrounding the central tube of the filter body, each having a circular coil plate surrounding the central tube and an insulating material between the circular coil plates; a plurality of flow path partitions extending from the inner wall of the filter body and in contact with the outer wall of the plurality of coil sections, and arranged at predetermined angular intervals on the inner wall of the filter body; a plurality of cooling flow path spacers arranged between the plurality of coil sections; and an insulating oil cooler connected to the filter body for circulating cooling oil inside the filter body to cool it; wherein the plurality of cooling flow path spacers are arranged between the plurality of coil sections with respect to the central tube. This provides an EMF filter device with improved heat exchange efficiency, comprising: a plurality of first directional spacers arranged at predetermined intervals in both side regions of the coil section, facing the space between the plurality of flow path partition walls; and a plurality of second directional spacers arranged between the plurality of coil sections, with the central tube as the reference, in the other side regions of the coil section, between the plurality of first directional spacers.

[0010] The plurality of first directional spacers may include a pair of first lateral spacers positioned on both sides of the central tube on a line perpendicular to the center line of the central tube; and a plurality of pairs of second lateral spacers spaced apart from the pair of first lateral spacers and positioned symmetrically with respect to the lateral spacers.

[0011] One end of the first directional spacer and the second directional spacer may include at least one inclined surface that guides the cooling oil to either the central tube or the inner wall of the filter body.

[0012] The second directional spacer may include a first longitudinal spacer positioned adjacent to the central tube and parallel to the first directional spacer, guiding the cooling oil toward the pair of first transverse spacers; and a second longitudinal spacer that guides the cooling oil passing between the plurality of first directional spacers toward the pair of second transverse spacers.

[0013] The insulating oil cooler includes an oil tank in which cooling oil is stored; an oil supply pipe connecting the oil tank and the filter body and coupled to the outer wall of the filter body toward the center of the central pipe; an oil recovery pipe connecting the filter body and the oil tank on the opposite side of the oil supply pipe; and an oil pump located in at least one of the oil supply pipe and the oil recovery pipe, wherein the oil supply pipe is coupled to one side wall of the oil tank to supply cooling oil between some of the plurality of first directional spacers, and the oil recovery pipe may be coupled to the other side wall of the oil tank to recover cooling oil from other of the plurality of first directional spacers.

[0014] The flow path partition may include a baffle coupled to the inner wall of the filter body, and a plate-shaped bakelite connected to the baffle and in contact with the coil portion.

[0015] The configuration of the present invention further includes a plurality of fixing brackets coupled to the inner wall of the filter body; and an installation bar connecting the plurality of fixing brackets, wherein the plurality of first directional spacers may be coupled to the installation bar and positioned between the plurality of coil portions. [Effects of the Invention]

[0016] The present invention, with the configuration described above, can provide an EMF filter device with improved heat exchange efficiency that can generate a stronger magnetic field by modifying the cooling performance to increase the heat exchange efficiency of the heat exchanger and internal structure of the EMF system. [Brief explanation of the drawing]

[0017] [Figure 1] This is a front view of an EMF filter device with improved heat exchange efficiency according to one embodiment of the present invention. [Figure 2] This is a plan view of Figure 1. [Figure 3] This is a cross-sectional view AA in Figure 2. [Figure 4] Figure 3 is a detailed view of the coil section. [Figure 5] Figure 2 shows the arrangement of the cooling channel spacers as seen through the inside of the filter body. [Figure 6] Figure 5 is a diagram showing the flow state of the cooling oil with respect to the cooling channel spacer. [Figure 7] Figure 2 shows the arrangement of other cooling channel spacers as seen through the inside of the filter body. [Figure 8] Figure 7 is a perspective view of the multiple coil sections and other cooling channel spacers. [Modes for carrying out the invention]

[0018] Hereinafter, various embodiments of the present invention will be described based on specific embodiments shown in the accompanying drawings. The present invention relates to an apparatus that improves the coil and cooling structure of an EMF system. It replaces the conventional S&T type heat exchanger with a plate heat exchanger to enhance the heat exchange efficiency in the same space, allows insulating oil to flow directly inside the coil to improve the cooling performance, and thereby enables more current to flow to generate a stronger magnetic field.

[0019] FIG. 1 is a front view of an EMF filter device with improved heat exchange efficiency according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 4 is a detailed view of the coil portion of FIG. 3.

[0020] Referring to FIGS. 1 to 4, an EMF filter device 100 with improved heat exchange efficiency according to an embodiment of the present invention includes a cylindrical filter body 110 provided with a central tube 115; a plurality of coil portions 120 arranged in a stacked manner so as to surround the central tube 115 of the filter body 110, each having a circular coil plate 121 surrounding the central tube 115 and an insulating material 125 between the circular coil plates 121; a plurality of flow path partition walls 130 extending from the inner wall portion of the filter body 110, contacting the outer wall portions of the plurality of coil portions 120, and arranged at a predetermined angular interval on the inner wall portion of the filter body 110; a plurality of cooling flow path spacers 140 arranged between the plurality of coil portions 120; and an insulating oil cooler 150 connected to the filter body 110 for circulating and cooling the cooling oil inside the filter body 110.

[0021] The filter body 110 is cylindrical, and a central tube 115 through which a material filtered by magnetic force passes is arranged at the center. The central tube 115 connects the upper and bottom surfaces of the filter body 110 and is connected to an external tube for supplying the filtering material.

[0022] Multiple coil sections 120 are arranged in a stacked manner around the central tube 115 inside the filter body 110 to provide magnetic force to the central tube 115, and can generate electromagnetic force when power is supplied from a transmitter connected to a power supply.

[0023] These multiple coil sections 120 generate resistance heat due to their own resistance when electromagnetic force is generated, so cooling oil is supplied to and circulated to the filter body 110 to release the resistance heat to the outside and cool them down.

[0024] Furthermore, multiple cooling flow channel spacers 140 are arranged between the multiple coil sections 120 so that cooling oil is supplied between the multiple coil sections 120 and sufficient heat exchange is performed.

[0025] Multiple flow path partitions 130 are connected to the filter body 110 on both sides in front of the central pipe 115 and on both sides in rear of the central pipe 115. In this case, the flow path partitions 130 can be positioned at the center of the central pipe 115 between virtual orthogonal lines perpendicular to the lateral and vertical directions, and can be positioned at 90-degree intervals in the filter body 110.

[0026] These multiple flow path partitions 130 can be divided into a pair of first flow path partitions 131 located on both sides in front of the central pipe 115, and another pair of second flow path partitions 132 located on both sides behind the central pipe 115.

[0027] The flow path partition wall 130 may include a baffle 134 coupled to the inner wall of the filter body 110, and a plate-shaped bakelite 135 connected to the baffle 134 and in contact with the coil portion 120.

[0028] Furthermore, in this embodiment, a third flow path partition wall 133 may be added, which is positioned adjacent to the central horizontal line of the filter body 110 and angled to both sides, thereby guiding the cooling oil to the rear inner region of the filter body 110.

[0029] Figure 5 is a diagram showing the arrangement of cooling channel spacers as seen from inside the filter body of Figure 2, Figure 6 is a diagram showing the flow state of the cooling oil through the cooling channel spacers of Figure 5, Figure 7 is a diagram showing the arrangement of other cooling channel spacers as seen from inside the filter body of Figure 2, and Figure 8 is a perspective view of the multiple coil sections and other cooling channel spacers of Figure 7.

[0030] Referring further to Figures 5 and 6, the multiple cooling channel spacers 140 may include multiple first directional spacers 141 positioned between multiple coil sections 120, separated by a predetermined interval in the regions on both sides of the coil sections 120 with respect to the central pipe 115, and facing toward the multiple channel compartment partitions 130; and multiple second directional spacers 145 positioned between the multiple coil sections 120, separated by the multiple first directional spacers 141 in the other regions on both sides of the coils 120 with respect to the central pipe 115.

[0031] The first directional spacer 141 is positioned to cause the cooling oil flowing towards the central pipe 115 at the front of the filter body 110 to flow in both directions of the filter body 110 or from both sides inward. As a result, the cooling oil flows in both directions by the first directional spacer 141 at the front and rear of the filter body 110, and then flows inward again, so that it flows uniformly from the front to the rear.

[0032] The multiple first directional spacers 141 may include a pair of first lateral spacers 141-1 positioned on both sides of the central tube 115 on a line perpendicular to the center line of the central tube 115; and a plurality of pairs of second lateral spacers 141-2 positioned spaced apart from the pair of first lateral spacers 141-1 and symmetrically positioned with respect to the first lateral spacers 141-1.

[0033] The first lateral spacer 141-1 is positioned long on both sides of the central tube 115, and the second lateral spacer 141-2 is positioned in the front and rear regions of the first lateral spacer 141-1, with a shorter length than the first lateral spacer 141-1, and is positioned in a straight line from the inner region to the outer surface of the coil section 120. In this case, both the first lateral spacer 141-1 and the second lateral spacer 141-2 are positioned symmetrically on both sides of the central tube 115.

[0034] In this embodiment, the mounting structure that can fix the first lateral spacer 141-1 and the second lateral spacer 141-2 to the filter body 110 may further include a plurality of fixing brackets 143 coupled to the inner wall of the filter body 110, and a mounting bar 144 connecting the plurality of fixing brackets 143. The plurality of first directional spacers 141 may be coupled to the mounting bar 144 and positioned between a plurality of coil sections 120. The fixing brackets 143 and the mounting bar 144 may be used as a structure for fixing the second vertical spacer 145-2 of the second directional spacer 145 to the filter body 110.

[0035] Referring further to Figures 7 and 8, one end of the first directional spacer 141 and the second directional spacer 145 may include at least one inclined surface 147 that guides the cooling oil to either the central tube 115 or the inner wall of the filter body 110.

[0036] First, of the first directional spacers 141, a pair of first lateral spacers 141-1 located on both sides of the central pipe 115 are inclined to widen the flow path with respect to the direction of cooling oil flow, a pair of second lateral spacers 141-2 located in front of the central pipe 115 have inclined surfaces 147 that narrow the flow path with respect to the direction of cooling oil flow, and another pair of second lateral spacers 141-2 located behind the central pipe 115 have inclined surfaces 147 that widen the flow path with respect to the direction of cooling oil flow.

[0037] The second directional spacer 145 may include a first longitudinal spacer 145-1 positioned adjacent to the central pipe 115 and parallel to the first directional spacer 141, which guides the cooling oil toward a pair of first lateral spacers 141-1; and a second longitudinal spacer 145-2 which guides the cooling oil flowing between the multiple first directional spacers 141 toward a pair of second lateral spacers 141-2.

[0038] The first longitudinal spacer 145-1 is positioned in the front region of the central pipe 115 and is shorter than the diameter of the central pipe 115, and guides the cooling oil that flows between the pair of second transverse spacers 141-2 located in front of the central pipe 115 to the pair of first transverse spacers 141-1 located on both sides in front of the central pipe 115.

[0039] The second longitudinal spacer 145-2 guides the cooling oil that has flowed between the pair of first transverse spacers 141-1 and the other pair of second transverse spacers 141-2 in the rear region of the central pipe 115, by splitting it to both sides of the rear end of the central pipe 115.

[0040] The pair of second lateral spacers 141-2 located in front of the central pipe 115 of the first directional spacer 141 are positioned such that the pair of first flow path partition walls 131 surround the inlet provided on the front part 111 of the filter body 110, allowing the cooling oil flowing in through the inlet to pass through.

[0041] In other words, the cooling oil is restricted from moving to either side of the filter body 110 by a pair of first flow path partition walls 131, so that it can pass between a pair of second lateral spacers 141-2 located in front of the central pipe 115, flow to the first longitudinal spacer 145-1 of the second directional spacer 145 located in front of the central pipe 115, and then flow towards the pair of first lateral spacers 141-1.

[0042] The cooling oil that flows towards the pair of first lateral spacers 141-1 is restricted in flow by the second flow channel partition wall 132 and guided by the third flow channel partition wall 133, so that it flows between the other pair of second lateral spacers 141-2 and the pair of first lateral spacers 141-1 in the rear region of the central pipe 115, passes between the other pair of second lateral spacers 141-2, then splits and flows to both sides in the second longitudinal spacer 145-2, and then circulates in the rear region of the central pipe 115 before being discharged from the outlet provided on the rear surface 112 of the filter body 110.

[0043] In this way, the cooling oil flows into the front part of the filter body 110, circulates in the front region of the central pipe 115, then flows again to both rear sides of the central pipe 115, circulates in the rear region of the central pipe 115, and then flows out to the rear part of the filter body 110. As a result, it passes uniformly through the multiple coil sections 120 stacked inside the filter body 110, and the multiple coil sections 120 can be cooled efficiently.

[0044] On the other hand, the insulating oil cooler 150 may include an oil tank 160 in which cooling oil is stored; an oil supply pipe 161 connecting the oil tank 160 and the filter body 110 and coupled to the outer wall of the filter body 110 so as to be directed toward the center of the central pipe 115; an oil recovery pipe 162 connecting the filter body 110 and the oil tank 160 on the opposite side of the oil supply pipe 161; and an oil pump 165 positioned in at least one of the oil supply pipe 161 and the oil recovery pipe 162.

[0045] An oil supply pipe 161 may be connected to the front wall of the oil tank 160 to supply cooling oil between a pair of second lateral spacers 141-2 located in front of the central pipe 115 among a plurality of first directional spacers 141, and an oil recovery pipe 162 may be connected to the rear wall of the oil tank 160 to recover cooling oil passing between another pair of second lateral spacers 141-2 located behind the central pipe 115 among a plurality of first directional spacers 141.

[0046] An injector 170 (distributor or injector) is connected to the front of the filter body 110 so as to supply oil to the inlet of the filter body 110.

[0047] As a result, the oil fluid is injected directly between the stacked coil sections 120 via an injector nozzle provided at the rear end of the injector 170, minimizing the flow rate of oil outside the coil section 120. This allows the cold oil that flows into the filter body 110 to directly contact the circular coil plates 121 of the coil section 120, thereby increasing the heat exchange efficiency using oil at an initial low temperature.

[0048] On the other hand, the injector 170 is made flexible using silicon and can be efficiently positioned directly in the space between the coil sections 120, thereby further increasing the heat exchange efficiency.

[0049] The specific structural and functional descriptions of embodiments relating to the concept of the present invention disclosed herein are merely illustrative for the purpose of illustrating embodiments relating to the concept of the present invention, and embodiments relating to the concept of the present invention can be implemented in a variety of forms and should not be construed as being limited to the embodiments described herein. [Explanation of Symbols]

[0050] 100 Filter device 110 Filter body 111 Front part 112 Rear section 115 Central tube 120 Coil section 121 Circular coil plate 125 Insulating material 130 Multiple flow channel compartment partitions 131 First channel compartment partition wall 132 Second channel compartment partition wall 134 Baffle 135 Plate-shaped bakelite 140 Multiple cooling channel spacers 141 First Direction Spacer 141-1 First lateral spacer 141-2 Second Lateral Spacer 143 Fixing bracket 144 Mounting Bar 145 Second Direction Spacer 145-1 First longitudinal spacer 145-2 Second vertical spacer 147 Slope 150 Insulating Oil Cooler 160 Oil Tank 161 Oil supply pipe 162 Oil recovery pipe 165 Oil pump

Claims

1. A cylindrical filter body with a central tube, Multiple coil sections are arranged in a stacked manner to surround the central tube of the filter body, each having a circular coil plate surrounding the central tube and an insulating material between the circular coil plates; Multiple flow path partitions extending from the inner wall of the filter body, in contact with the outer wall of the multiple coil sections, and arranged at predetermined angular intervals on the inner wall of the filter body; Multiple cooling channel spacers arranged between the multiple coil sections; and Includes an insulating oil cooler connected to the filter body, which circulates cooling oil inside the filter body to cool it; The aforementioned multiple cooling channel spacers are A plurality of first directional spacers are arranged between the plurality of coil sections, separated by a predetermined distance in the regions on both sides of the coil section with respect to the central pipe, and facing the space between the plurality of flow path partition walls; and The plurality of second directional spacers are positioned between the plurality of first directional spacers in other side regions on the coil portion with respect to the central tube, between the plurality of coil portions; The aforementioned partition wall for the flow channel section is A baffle coupled to the inner wall of the filter body; and An EMF filter device with improved heat exchange efficiency, comprising: a plate-shaped bakelite connected to the baffle and in contact with the coil portion;

2. A plurality of fixing brackets coupled to the inner wall portion of the filter body; and A mounting bar connecting the plurality of fixing brackets; further including The plurality of first directional spacers are coupled to the mounting bar and positioned between the plurality of coil sections, wherein the EMF filter device has improved heat exchange efficiency according to claim 1.

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