A direct current planar electromagnetic pump for aluminum alloy immersion casting

Abstract

The application relates to the technical field of electromagnetic pumps, and discloses a direct-current plane electromagnetic pump for aluminum alloy immersion casting, which comprises an electromagnetic pump body, a liquid feeding pipe is through-connected to the inner wall of the electromagnetic pump body, and a mounting ring is fixedly connected to the inner wall of the electromagnetic pump body; the body mechanism is installed on the inner wall of the electromagnetic pump body; the cooling liquid spirally flows downwards through the spiral surface of the spiral plate, continuously absorbs heat, and the cooling liquid at the bottom of the spiral plate has the highest temperature; the cooling liquid injected from the water feeding pipe exchanges heat with the bottom of the partition ring through the isolation assembly, the cooling liquid at the bottom of the spiral plate can maintain stable heat exchange efficiency, the whole heat insulation cylinder uniformly cools down, the temperature at the bottom of the heat insulation cylinder is effectively prevented from being high, the effective heat radiation isolation is affected, the temperature of the area at the bottom of the electromagnetic coil is prevented from being too high, the magnetic field generated by the electromagnetic coil is stabilized, and the aluminum liquid flow is stably conveyed.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic pump equipment technology, specifically to a DC planar electromagnetic pump for aluminum alloy immersion casting. Background Technology

[0002] A DC planar electromagnetic pump is a device that uses the Lorentz force generated by the interaction of direct current and a constant magnetic field to drive conductive liquids (such as liquid metals). It belongs to the conductive electromagnetic pump category and is fundamentally different from the mechanical pumps commonly found in daily life. Its core advantage is that it has no moving parts, so it operates without wear, leakage, or noise. It is used in aluminum alloy casting and can achieve "immersion" liquid extraction of aluminum liquid in a stable and non-contact manner.

[0003] When a DC planar electromagnetic pump transports molten aluminum, the high temperature of the molten aluminum causes thermal radiation. This heat radiation is often isolated by circulating coolant through a closed liquid-cooled jacket. The flow channels within the jacket are typically spiral-shaped. However, as the coolant flows through these spiral channels, it continuously absorbs heat, leading to an increase in the temperature of the coolant in the later sections of the flow channels. This reduces heat exchange efficiency and may result in higher temperatures in certain areas of the jacket, affecting the isolation of thermal radiation. Consequently, the temperature on the side of the electromagnetic coil near the liquid outlet becomes too high, causing a decrease in magnetic field strength and reducing the electromagnetic thrust on the molten aluminum. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a DC planar electromagnetic pump for aluminum alloy immersion casting, including an electromagnetic pump body, a liquid delivery pipe connected through the inner wall of the electromagnetic pump body, and a mounting ring fixedly connected to the inner wall of the electromagnetic pump body, and further including: The main structure is installed on the inner wall of the electromagnetic pump body. The main structure includes a heat insulation cylinder installed on the inner wall of the electromagnetic pump body to isolate heat radiation. A cooling mechanism is installed on the inner wall of the electromagnetic pump body, and the cooling mechanism includes a partition ring installed on the inner wall of the electromagnetic pump body. A drainage mechanism is installed on the outer wall of the partition ring, and the drainage mechanism includes several partition plates fixedly connected to the outer wall of the partition ring; The system includes eight partitions. When in use, the operator fixes the top of the electromagnetic pump body to the furnace cover of the external heat preservation furnace, then closes the furnace cover. The bottom of the electromagnetic pump body is then immersed in the molten aluminum, and the liquid delivery pipe is connected to the external mold.

[0005] Preferably, the main structure also includes: Magnetic field assembly, which is installed on the inner wall of the liquid delivery pipe; The heat insulation component is installed on the inner wall of the electromagnetic pump body.

[0006] Preferably, the cooling mechanism further includes: An isolation component is installed on the inner wall of the heat insulation cylinder; The heat exchange component is installed on the inner wall of the isolation component.

[0007] Preferably, the traffic diversion mechanism also includes: The flow guiding component is installed on the inner wall of the heat exchange component.

[0008] Preferably, the magnetic field assembly includes several electrodes fixedly connected to the inner wall of the liquid delivery pipe, and an electromagnetic coil is fixedly connected to the inner wall of the electromagnetic pump body. The top of the electromagnetic coil is fixedly connected to the bottom of the inner wall of the mounting ring, and the top of the heat insulation cylinder is fixedly connected to the bottom of the inner wall of the mounting ring. The system has two electrodes. The molten aluminum enters the delivery pipe through the liquid level difference and comes into contact with the electrodes. Current is passed into the molten aluminum. When the molten aluminum needs to be moved, the power supply to the electromagnetic coil is turned on, so that the electromagnetic coil is energized and generates a magnetic field. The interaction between the current in the molten aluminum and the magnetic field generated by the electromagnetic coil generates an upward Lorentz force, which pushes the molten aluminum to flow in the delivery pipe and enter the external mold through the delivery pipe.

[0009] Preferably, the heat insulation component includes a water supply pipe that runs through the inner wall of the electromagnetic pump body, and a drain pipe that runs through the inner wall of the electromagnetic pump body. The bottom outer wall of the water supply pipe is connected to the inner wall of the insulation cylinder, the bottom outer wall of the drain pipe is connected to the inner wall of the insulation cylinder, and the bottom outer wall of the drain pipe is connected to the inner wall of the partition ring. After completing the installation of the electromagnetic pump body, connect the left side of the water supply pipe to the water supply end of the external chiller, and then connect the right side of the drain pipe to the water return end of the external chiller.

[0010] Preferably, the isolation assembly includes an annular groove formed on the inner wall of the heat insulation cylinder, the bottom of the inner wall of the annular groove being fixedly connected to the bottom of the partition ring, and the outer wall of the partition ring having a plurality of annular grooves. The annular groove has sixteen sections. When the external chiller is started, coolant is supplied through the water supply pipe into the annular groove. At this time, the coolant is blocked by the partition ring and moves upward along the outer wall of the partition ring.

[0011] Preferably, the heat exchange assembly includes a spiral plate fixedly connected to the inner wall of the annular groove, and a baffle ring fixedly connected to the outer wall of the partition ring; As the coolant continues to flow, after the coolant level reaches the top of the separator ring, the coolant will move towards the spiral plate. The coolant will then flow downwards through the spiral surface of the spiral plate, exchanging heat with the heat insulation cylinder and isolating the heat radiation generated by the molten aluminum from the liquid delivery pipe. When the coolant reaches the bottom of the spiral plate, it will be discharged through the drain pipe and flow back to the external chiller. As the coolant spirals downwards from the top of the spiral plate, it continuously absorbs heat, resulting in the highest coolant temperature at the bottom of the spiral plate. The coolant injected from the water supply pipe flows upwards along the outer wall of the separator ring. Multiple annular grooves on the outer wall of the separator ring disturb the coolant, causing it to exchange heat with the separator ring. This heat exchange with the coolant at the bottom of the spiral plate lowers the temperature of the coolant in that area, ensuring stable heat exchange efficiency and uniform cooling of the entire insulation cylinder. This effectively prevents the continuous accumulation of heat in the coolant at the bottom of the spiral plate, which could lead to a higher temperature at the bottom of the insulation cylinder, affecting effective heat radiation isolation and causing excessively high temperatures at the bottom of the electromagnetic coil. This ensures a stable magnetic field generated by the electromagnetic coil and a stable flow of molten aluminum. The coolant is separated by a separator ring. As the coolant moves upward along the outer wall of the separator ring, the outer diameter of the separator ring increases, reducing the flow area of ​​the coolant and increasing its flow rate. This shortens the heat exchange time between the coolant and the outer wall of the separator ring, reducing subsequent heat transfer and minimizing the subsequent temperature rise of the coolant at the outer wall of the separator ring. This ensures that the coolant retains sufficient cooling capacity as it flows downward from the top of the spiral plate, effectively carrying away heat from the top area of ​​the insulation cylinder. This prevents a large amount of heat from being transferred from the spiral plate to the coolant on the outer wall of the separator ring during the upward flow of the coolant, which would otherwise result in an excessively high initial temperature of the coolant flowing downward from the top of the spiral plate and negatively impact the overall cooling effect on the insulation cylinder.

[0012] Preferably, the flow guiding component includes a plurality of inclined arc-shaped grooves formed on the inner wall of the blocking ring, and the inner walls of the plurality of inclined arc-shaped grooves are slidably connected with inclined arc-shaped plates. Spring plates are fixedly connected to the top of several inclined arc plates, and the top of the blocking rings is fixedly connected to the bottom of several partition plates. The system includes eight inclined arc-shaped grooves, eight inclined arc-shaped plates, and eight spring plates. When the coolant flows upward along the outer wall of the partition ring, it is blocked by the inclined arc-shaped plates. After the coolant fills the bottom of the blocking ring, the water supply pipe continuously injects coolant, and the water pressure of the coolant gradually increases. The coolant will then push multiple inclined arc-shaped plates upward, causing them to squeeze the spring plates, deform the spring plates, and accumulate rebound force. As the inclined arc-shaped plates rise, they separate from the inclined surface of the inclined arc-shaped grooves, thus removing the obstruction to the coolant. The coolant will then flow synchronously to the top of multiple inclined arc-shaped plates, allowing it to enter the flow channels separated by multiple partition plates. The flowing coolant is divided into multiple streams, which are simultaneously pushed upwards by multiple inclined arc-shaped plates. This allows the separated coolant streams to flow upwards synchronously with a more uniform flow velocity, achieving uniform heat exchange around the outer wall of the annular groove. This effectively prevents the coolant from flowing at a higher velocity near the water supply pipe on the outer wall of the dividing ring, which would cause uneven circumferential flow velocity in different areas of the annular groove. Such uneven flow velocity would lead to significant differences in heat exchange efficiency in different circumferential areas, affecting the uniform cooling of all areas around the insulation cylinder.

[0013] The present invention has the following beneficial effects: (1) In this invention, an external chiller is started to deliver coolant. The coolant enters the annular groove through the water supply pipe. The coolant will move upward along the outer wall of the partition ring until it flows to the top of the spiral plate. The coolant will then flow downward through the spiral surface of the spiral plate and continuously absorb heat, resulting in the highest temperature of the coolant at the bottom of the spiral plate. The coolant injected from the water supply pipe will exchange heat with the bottom of the partition ring through the isolation component, so that the coolant in the bottom area of ​​the spiral plate can maintain a stable heat exchange efficiency, so that the heat insulation cylinder is cooled evenly. This effectively prevents the temperature at the bottom of the heat insulation cylinder from being too high, which would affect the effective isolation of heat radiation and cause the temperature at the bottom of the electromagnetic coil to be too high. This ensures the stability of the magnetic field generated by the electromagnetic coil and the stable delivery of aluminum liquid.

[0014] (2) In this invention, when the coolant moves upward along the outer wall of the partition ring, the outer diameter of the partition ring will increase, reducing the flow area of ​​the coolant. The flow rate of the coolant will increase, shortening the heat exchange time between the coolant and the outer wall of the partition ring. This results in a smaller subsequent temperature rise of the coolant at the outer wall of the partition ring, allowing the coolant to maintain sufficient cooling capacity as it flows downward from the top of the spiral plate. This effectively prevents a large amount of heat from being conducted from the spiral plate to the coolant on the outer wall of the partition ring during the upward movement of the coolant, which would cause the initial temperature of the coolant to be too high when it flows downward from the top of the spiral plate, thus affecting the overall cooling effect on the heat insulation cylinder.

[0015] (3) In this invention, when the coolant flows upward along the outer wall of the partition ring, the flowing coolant is divided into multiple streams by the flow guiding component. The coolant simultaneously squeezes multiple inclined arc plates upward, so that the separated multiple streams of coolant can flow upward synchronously and the flow velocity tends to be uniform. This achieves uniform heat exchange around the outer wall of the annular groove, effectively preventing the coolant from flowing faster on the side near the water supply pipe when it flows on the outer wall of the partition ring. This would cause uneven circumferential flow velocity in different areas of the annular groove, resulting in a large difference in heat exchange efficiency in different areas of the circumference, which would affect the uniform cooling of different areas of the heat insulation cylinder.

[0016] (4) In this invention, when the coolant pushes the inclined arc plate upward, the coolant flows to the top of the inclined arc plate. As the space at the top of the inclined arc plate increases, the flow area of ​​the coolant increases, which reduces the flow rate of the coolant and makes the flow of the coolant more stable. This effectively prevents the coolant from flowing in the inclined arc groove after the coolant pushes the inclined arc plate to move. The flow of the coolant is blocked by the inclined arc plate, which will change the flow direction of the coolant and easily generate local eddies. This will increase the flow resistance of the coolant and affect the smooth rise of the coolant, thereby ensuring that the coolant can be delivered to the top of the spiral plate in time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the electromagnetic pump body of the present invention; Figure 4 This is a schematic cross-sectional view of the liquid delivery tube of the present invention; Figure 5 This is a schematic cross-sectional view of the mounting ring of the present invention; Figure 6 This is a cross-sectional schematic diagram of the heat insulation cylinder part of the present invention; Figure 7 This is a cross-sectional schematic diagram of the liquid delivery pipe portion of the present invention; Figure 8 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the partition plate of the present invention; Figure 10 This is a top view of the heat insulation cylinder of the present invention; Figure 11 This is a cross-sectional plan view of the heat insulation cylinder section of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Magnetic field assembly; 12. Heat insulation assembly; 13. Electromagnetic pump body; 14. Liquid delivery pipe; 15. Mounting ring; 101. Heat insulation cylinder; 111. Electrode; 112. Electromagnetic coil; 121. Water delivery pipe; 122. Drain pipe; 2. Cooling mechanism; 21. Isolation assembly; 22. Heat exchange assembly; 201. Separating ring; 211. Annular groove; 212. Annular groove; 221. Spiral plate; 222. Blocking ring; 3. Flow guiding mechanism; 31. Flow guiding assembly; 301. Separating plate; 311. Inclined arc groove; 312. Inclined arc plate; 313. Spring plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] For examples, please refer to Figures 1-11 This invention relates to a DC planar electromagnetic pump for aluminum alloy immersion casting, comprising an electromagnetic pump body 13, a liquid delivery pipe 14 connected through the inner wall of the electromagnetic pump body 13, and a mounting ring 15 fixedly connected to the inner wall of the electromagnetic pump body 13, and further comprising: The main body 1 is installed on the inner wall of the electromagnetic pump body 13. The main body 1 includes a heat insulation cylinder 101 installed on the inner wall of the electromagnetic pump body 13 for isolating heat radiation. Cooling mechanism 2 is installed on the inner wall of electromagnetic pump body 13. Cooling mechanism 2 includes a partition ring 201 installed on the inner wall of electromagnetic pump body 13. The drainage mechanism 3 is installed on the outer wall of the partition ring 201. The drainage mechanism 3 includes a plurality of partition plates 301 fixedly connected to the outer wall of the partition ring 201. The partition plate 301 is provided with eight. When in use, the operator fixes the top of the electromagnetic pump body 13 to the furnace cover of the external heat preservation furnace, and then closes the furnace cover. The bottom of the electromagnetic pump body 13 will be immersed in the aluminum liquid, and then the liquid delivery pipe 14 will be connected to the external mold.

[0022] Main body 1 also includes: Magnetic field assembly 11 is installed on the inner wall of liquid delivery pipe 14; The heat insulation component 12 is installed on the inner wall of the electromagnetic pump body 13.

[0023] Cooling mechanism 2 also includes: Isolation component 21 is installed on the inner wall of the heat insulation cylinder 101; Heat exchange component 22 is installed on the inner wall of isolation component 21.

[0024] Traffic generation mechanism 3 also includes: The flow guiding component 31 is installed on the inner wall of the heat exchange component 22.

[0025] The magnetic field assembly 11 includes several electrodes 111 fixedly connected to the inner wall of the liquid delivery pipe 14, and an electromagnetic coil 112 is fixedly connected to the inner wall of the electromagnetic pump body 13. The top of the electromagnetic coil 112 is fixedly connected to the bottom of the inner wall of the mounting ring 15, and the top of the heat insulation cylinder 101 is fixedly connected to the bottom of the inner wall of the mounting ring 15. There are two electrodes 111. The molten aluminum enters the delivery pipe 14 through the liquid level difference and comes into contact with the electrodes 111. Current is passed into the molten aluminum. When it is necessary to move the molten aluminum, the power supply of the electromagnetic coil 112 is turned on, so that the electromagnetic coil 112 is energized and generates a magnetic field. The interaction between the current in the molten aluminum and the magnetic field generated by the electromagnetic coil 112 generates an upward Lorentz force, which pushes the molten aluminum to flow in the delivery pipe 14 and enter the external mold through the delivery pipe 14.

[0026] The heat insulation component 12 includes a water delivery pipe 121 that is connected through the inner wall of the electromagnetic pump body 13, and a drain pipe 122 that is connected through the inner wall of the electromagnetic pump body 13. The bottom outer wall of the water supply pipe 121 is connected to the inner wall of the heat insulation cylinder 101, the bottom outer wall of the drain pipe 122 is connected to the inner wall of the heat insulation cylinder 101, and the bottom outer wall of the drain pipe 122 is connected to the inner wall of the partition ring 201. After the installation of the electromagnetic pump body 13 is completed, the left side of the water supply pipe 121 is connected to the water supply end of the external chiller, and the right side of the drain pipe 122 is connected to the return end of the external chiller.

[0027] The isolation assembly 21 includes an annular groove 211 formed on the inner wall of the heat insulation cylinder 101. The bottom of the inner wall of the annular groove 211 is fixedly connected to the bottom of the partition ring 201. The outer wall of the partition ring 201 is provided with a plurality of annular grooves 212. The annular groove 212 has sixteen grooves. When the external chiller is started, coolant is delivered into the annular groove 211 through the water supply pipe 121. At this time, the coolant is blocked by the partition ring 201 and moves upward along the outer wall of the partition ring 201.

[0028] The heat exchange assembly 22 includes a spiral plate 221 fixedly connected to the inner wall of the annular groove 211, and a blocking ring 222 fixedly connected to the outer wall of the partition ring 201; As the coolant continues to flow, after the coolant level reaches the top of the separator ring 201, the coolant will move towards the spiral plate 221. The coolant will then flow downwards through the spiral surface of the spiral plate 221, exchanging heat with the heat insulation cylinder 101 and isolating the heat radiation generated by the aluminum liquid from the liquid delivery pipe 14. When the coolant flows to the bottom of the spiral plate 221, it will be discharged through the drain pipe 122 and the coolant will flow back to the external chiller. As the coolant spirals downward from the top of the spiral plate 221, it continuously absorbs heat, resulting in the highest coolant temperature at the bottom of the spiral plate 221. The coolant injected from the water supply pipe 121 flows upward along the outer wall of the partition ring 201. Multiple annular grooves 212 on the outer wall of the partition ring 201 disturb the coolant, causing it to exchange heat with the partition ring 201. This heat exchange with the coolant at the bottom of the spiral plate 221 lowers the temperature of the coolant in the bottom area of ​​the spiral plate 221, ensuring stable heat exchange efficiency and uniform cooling of the insulation cylinder 101. This effectively prevents the continuous accumulation of heat in the coolant at the bottom of the spiral plate 221, which could lead to a high temperature at the bottom of the insulation cylinder 101, affecting effective heat radiation isolation and causing excessively high temperatures at the bottom of the electromagnetic coil 112. This ensures a stable magnetic field generated by the electromagnetic coil 112 and stable delivery of molten aluminum. The coolant is separated by the separator ring 201. As the coolant moves upward along the outer wall of the separator ring 201, the outer diameter of the separator ring 201 increases, reducing the flow area of ​​the coolant and thus increasing the flow rate of the coolant. Figure 11 As shown, shortening the heat exchange time between the coolant and the outer wall of the separator ring 201 reduces subsequent heat transfer, resulting in a smaller subsequent temperature rise of the coolant on the outer wall of the separator ring 201. This allows the coolant to maintain sufficient cooling capacity as it flows downward from the top of the spiral plate 221, effectively carrying away heat from the top area of ​​the heat insulation cylinder 101. This effectively prevents a large amount of heat from the spiral plate 221 from being transferred to the coolant on the outer wall of the separator ring 201 during the upward flow of the coolant, which would cause the initial temperature of the coolant to be too high when flowing downward from the top of the spiral plate 221, thus affecting the overall cooling effect on the heat insulation cylinder 101.

[0029] The flow guiding component 31 includes a plurality of inclined arc grooves 311 formed on the inner wall of the blocking ring 222, and the inner walls of the plurality of inclined arc grooves 311 are slidably connected with inclined arc plates 312. A spring sheet 313 is fixedly connected to the top of several inclined arc plates 312, and the top of the blocking ring 222 is fixedly connected to the bottom of several partition plates 301. The system includes eight inclined arc grooves 311, eight inclined arc plates 312, and eight spring plates 313. When the coolant flows upward along the outer wall of the partition ring 201, it is blocked by the inclined arc plates 312. After the coolant fills the bottom of the blocking ring 222, the water supply pipe 121 continuously injects coolant, and the water pressure of the coolant gradually increases. The coolant will then push the multiple inclined arc plates 312 upward, causing the inclined arc plates 312 to squeeze the spring plates 313, causing the spring plates 313 to deform and accumulate rebound force. As the inclined arc plates 312 rise, they will separate from the inclined surface of the inclined arc grooves 311, thus removing the obstruction to the coolant. The coolant will then flow synchronously to the top of the multiple inclined arc plates 312, thereby allowing the coolant to enter the flow channels separated by the multiple partition plates 301. The flowing coolant is divided into multiple streams, which are simultaneously pushed upward by multiple inclined arc plates 312. This allows the separated coolant streams to flow upward synchronously with a more uniform flow velocity, achieving uniform heat exchange around the outer wall of the annular groove 211. This effectively prevents the coolant from flowing faster near the water supply pipe 121 on the outer wall of the separating ring 201, which would cause uneven circumferential flow velocity in different areas of the annular groove 211. Such uneven flow velocity would result in significant differences in heat exchange efficiency in different circumferential areas, affecting the uniform cooling of the heat insulation cylinder 101.

[0030] The number of the above structures is not limited. Those skilled in the art can freely set them according to actual needs, as long as the above structures are installed at the connection positions of the corresponding structures.

[0031] A specific application of this embodiment is as follows: When using this invention, the operator fixes the top of the electromagnetic pump body 13 to the furnace cover of the external heat preservation furnace, and then covers the furnace cover. The bottom of the electromagnetic pump body 13 will be immersed in the aluminum liquid. Then the liquid delivery pipe 14 is connected to the external mold. The aluminum liquid will enter the liquid delivery pipe 14 and contact the electrode 111 through the liquid level difference. Current is passed into the aluminum liquid. When it is necessary to transport the aluminum liquid, the power supply of the electromagnetic coil 112 is turned on, so that the electromagnetic coil 112 is energized and generates a magnetic field. Through the interaction between the current in the aluminum liquid and the magnetic field generated by the electromagnetic coil 112, an upward Lorentz force is generated, thereby pushing the aluminum liquid to flow in the liquid delivery pipe 14 and enter the external mold through the liquid delivery pipe 14. After completing the installation of the electromagnetic pump body 13, connect the left side of the water supply pipe 121 to the water supply end of the external chiller, and then connect the right side of the drain pipe 122 to the return end of the external chiller. Then start the external chiller to supply coolant, which enters the annular groove 211 through the water supply pipe 121. At this time, the coolant will be blocked by the partition ring 201, and the coolant will move upward along the outer wall of the partition ring 201. As the coolant continues to flow, after the surface of the coolant flows to the top of the partition ring 201, the coolant will move towards the spiral plate 221. The coolant will then flow downward through the spiral surface of the spiral plate 221 to exchange heat with the heat insulation cylinder 101 and isolate the heat radiation generated by the aluminum liquid from the liquid supply pipe 14. When the coolant flows to the bottom of the spiral plate 221, it will be discharged through the drain pipe 122 and the coolant will flow back into the external chiller. As the coolant spirals downward from the top of the spiral plate 221, it continuously absorbs heat, resulting in the highest coolant temperature at the bottom of the spiral plate 221. The coolant injected from the water supply pipe 121 flows upward along the outer wall of the partition ring 201. Multiple annular grooves 212 on the outer wall of the partition ring 201 disturb the coolant, causing it to exchange heat with the partition ring 201. This heat exchange with the coolant at the bottom of the spiral plate 221 lowers the temperature of the coolant in the bottom area of ​​the spiral plate 221, ensuring stable heat exchange efficiency and uniform cooling of the insulation cylinder 101. This effectively prevents the continuous accumulation of heat in the coolant at the bottom of the spiral plate 221, which could lead to a high temperature at the bottom of the insulation cylinder 101, affecting effective heat radiation isolation and causing excessively high temperatures at the bottom of the electromagnetic coil 112. This ensures a stable magnetic field generated by the electromagnetic coil 112 and stable delivery of molten aluminum. The coolant is separated by the separator ring 201. As the coolant moves upward along the outer wall of the separator ring 201, the outer diameter of the separator ring 201 increases, reducing the flow area of ​​the coolant and thus increasing the flow rate of the coolant. Figure 11 As shown, shortening the heat exchange time between the coolant and the outer wall of the partition ring 201 reduces the subsequent heat transfer, resulting in a smaller subsequent temperature rise of the coolant at the outer wall of the partition ring 201. This allows the coolant to maintain sufficient cooling capacity as it flows downward from the top of the spiral plate 221, effectively carrying away the heat from the top area of ​​the heat insulation cylinder 101. This effectively prevents a large amount of heat from the spiral plate 221 from being transferred to the coolant on the outer wall of the partition ring 201 during the upward flow of the coolant, which would cause the initial temperature of the coolant to be too high when it flows downward from the top of the spiral plate 221, thus affecting the overall cooling effect on the heat insulation cylinder 101. As the coolant flows upward along the outer wall of the partition ring 201, it is blocked by the inclined arc plate 312. After the coolant fills the bottom of the blocking ring 222, the water supply pipe 121 continuously injects coolant, and the water pressure of the coolant gradually increases. The coolant will then push the multiple inclined arc plates 312 upward, causing the inclined arc plates 312 to squeeze the spring plate 313, causing the spring plate 313 to deform and accumulate rebound force. As the inclined arc plates 312 rise, they will separate from the inclined surface of the inclined arc groove 311, thus removing the obstruction to the coolant. The coolant will then flow synchronously to the top of the multiple inclined arc plates 312, thereby allowing the coolant to enter the flow channels separated by the multiple partition plates 301 synchronously. The flowing coolant is divided into multiple streams, which are simultaneously pushed upward by multiple inclined arc plates 312. This allows the separated coolant streams to flow upward synchronously and at a uniform flow rate, achieving uniform heat exchange around the outer wall of the annular groove 211. This effectively prevents the coolant from flowing faster near the water supply pipe 121 when it flows on the outer wall of the separating ring 201, which would cause uneven circumferential flow velocity in different areas of the annular groove 211. This would result in significant differences in heat exchange efficiency in different circumferential areas, affecting the uniform cooling of the heat insulation cylinder 101. When the coolant pushes the inclined arc plate 312 upward, the coolant flows to the top of the inclined arc plate 312. As the space at the top of the inclined arc plate 312 increases, the flow area of ​​the coolant increases, which reduces the flow rate of the coolant. This makes the flow of the coolant more stable and effectively prevents the coolant from flowing in the inclined arc groove 311 after the coolant pushes the inclined arc plate 312 to move. This prevents the coolant from being blocked by the inclined arc plate 312, which would change the flow direction of the coolant, easily generate local eddies, increase the flow resistance of the coolant, and affect the smooth rise of the coolant. This ensures that the coolant can be delivered to the top of the spiral plate 221 in a timely manner.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A DC planar electromagnetic pump for aluminum alloy immersion casting, comprising an electromagnetic pump body (13), wherein a liquid delivery pipe (14) is connected through the inner wall of the electromagnetic pump body (13), and an mounting ring (15) is fixedly connected to the inner wall of the electromagnetic pump body (13), characterized in that, Also includes: The main body (1) is installed on the inner wall of the electromagnetic pump body (13). The main body (1) includes a heat insulation cylinder (101) installed on the inner wall of the electromagnetic pump body (13) for isolating heat radiation. Cooling mechanism (2), the cooling mechanism (2) is installed on the inner wall of the electromagnetic pump body (13), the cooling mechanism (2) includes a partition ring (201) installed on the inner wall of the electromagnetic pump body (13). The drainage mechanism (3) is installed on the outer wall of the partition ring (201). The drainage mechanism (3) includes a plurality of partition plates (301) fixedly connected to the outer wall of the partition ring (201). When in use, the operator fixes the top of the electromagnetic pump body (13) to the furnace cover of the external heat preservation furnace, then covers the furnace cover, and the bottom of the electromagnetic pump body (13) will be immersed in the aluminum liquid. Then the liquid delivery pipe (14) is connected to the external mold.

2. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 1, characterized in that: The main body (1) also includes: A magnetic field assembly (11) is installed on the inner wall of the liquid delivery pipe (14); A heat insulation component (12) is installed on the inner wall of the electromagnetic pump body (13).

3. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 2, characterized in that: The cooling mechanism (2) further includes: An isolation assembly (21) is installed on the inner wall of the heat insulation cylinder (101); Heat exchange component (22) is installed on the inner wall of isolation component (21).

4. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 3, characterized in that: The drainage mechanism (3) also includes: A flow guiding component (31) is installed on the inner wall of the heat exchange component (22).

5. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 2, characterized in that: The magnetic field assembly (11) includes several electrodes (111) fixedly connected to the inner wall of the liquid delivery pipe (14), and an electromagnetic coil (112) is fixedly connected to the inner wall of the electromagnetic pump body (13). The top of the electromagnetic coil (112) is fixedly connected to the bottom of the inner wall of the mounting ring (15), and the top of the heat insulation cylinder (101) is fixedly connected to the bottom of the inner wall of the mounting ring (15). When the bottom of the electromagnetic pump body (13) is immersed in the molten aluminum, the molten aluminum will enter the delivery pipe (14) and come into contact with the electrode (111). Then the power supply of the electromagnetic coil (112) is turned on, generating a magnetic field and pushing the molten aluminum into the external mold.

6. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 4, characterized in that: The heat insulation component (12) includes a water delivery pipe (121) that runs through the inner wall of the electromagnetic pump body (13), and a drain pipe (122) that runs through the inner wall of the electromagnetic pump body (13). The bottom outer wall of the water supply pipe (121) is connected to the inner wall of the heat insulation cylinder (101), the bottom outer wall of the drain pipe (122) is connected to the inner wall of the heat insulation cylinder (101), and the bottom outer wall of the drain pipe (122) is connected to the inner wall of the partition ring (201). The left side of the water supply pipe (121) is connected to the water supply end of the external chiller, and the right side of the drain pipe (122) is connected to the water return end of the external chiller.

7. A DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 6, characterized in that: The isolation component (21) includes an annular groove (211) formed on the inner wall of the heat insulation cylinder (101). The bottom of the inner wall of the annular groove (211) is fixedly connected to the bottom of the partition ring (201). The outer wall of the partition ring (201) is provided with a plurality of annular grooves (212). When the external chiller is started, coolant is delivered into the water supply pipe (121) and enters the annular groove (211) through the water supply pipe (121). The coolant will flow upward along the outer surface of the partition ring (201).

8. The DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 7, characterized in that: The heat exchange assembly (22) includes a spiral plate (221) fixedly connected to the inner wall of the annular groove (211), and a blocking ring (222) fixedly connected to the outer wall of the partition ring (201). As the coolant continues to flow, when the coolant level reaches the top of the separator ring (201), the coolant will flow towards the spiral plate (221) and spiral downward through the spiral surface of the spiral plate (221).

9. A DC planar electromagnetic pump for aluminum alloy immersion casting according to claim 8, characterized in that: The flow guiding component (31) includes a plurality of inclined arc grooves (311) formed on the inner wall of the blocking ring (222), and the inner walls of the plurality of inclined arc grooves (311) are slidably connected with inclined arc plates (312). A spring sheet (313) is fixedly connected to the top of each of the inclined arc plates (312), and the top of each of the blocking rings (222) is fixedly connected to the bottom of each of the partition plates (301). When the coolant flows upward, it will be blocked by the inclined arc plate (312). As the coolant continues to be injected, the pressure of the coolant will increase, and the coolant will push the inclined arc plate (312) upward.

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