A vortex magnetic force pump

Abstract

The application discloses a vortex magnetic force pump, which comprises a pump body, a sliding bearing fixed in the pump body, a rotating shaft installed in the sliding bearing, an impeller and an inner magnetic cylinder fixed at two ends of the rotating shaft respectively, and an outer magnetic cylinder sleeved outside the inner magnetic cylinder, wherein the inside of the pump body is a cavity structure, a separation cover for separating the inner magnetic cylinder and the outer magnetic cylinder is arranged in the inner cavity of the pump body, and a circulating refrigeration device is installed outside the separation cover. The application utilizes the cooperation between the inner magnet and the electromagnet, so that the inner magnet generates a magnetic entropy change, thereby absorbing the heat generated in the magnetic force pump, concentrating the heat in the range of the inner magnet, releasing the absorbed heat, cooperating with a high-temperature heat exchanger, and bringing the released heat into a low-temperature heat exchanger through a cooling liquid for a reciprocating circulation operation, so that the heat generated in the magnetic force pump can be efficiently radiated, the damage of the magnetic force pump caused by the high temperature and the failure to timely remove the heat is avoided, and the service life of the magnetic force pump is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of magnetic pump technology, and more particularly to a vortex magnetic pump. Background Technology

[0002] The vortex magnetic drive pump is a new type of seal-free pump that uses the principle of permanent magnet drive technology to achieve contactless torque transmission. It consists of a pump body, isolation sleeve, and connecting components, forming a pressure-resistant shielded sealed cavity. There is no mechanical connection between its drive shaft and driven shaft, and no seal is required in its structure. Therefore, this type of pump is seal-free and can achieve zero leakage. It is particularly suitable for conveying flammable, explosive, volatile, toxic, corrosive, and precious liquids. Magnetic drive pumps are often used in applications requiring only minimal or no leakage, as well as in high-vacuum applications where mechanical seals are insufficient. They are also suitable for special applications in the chemical, pharmaceutical, and power industries. It not only has excellent sealing performance but also high efficiency, reliability, and safety, and is therefore widely used.

[0003] During operation, existing magnetic drive pumps generate significant heat due to the pump itself and the high-temperature medium it carries, causing the internal temperature to rise. This heat cannot be dissipated quickly, leading to severe wear on the pump's isolation cover. This makes the pump unsuitable for applications requiring minimal or no leakage. Therefore, rapid heat dissipation is crucial during operation. Current methods typically involve cooling the inner cavity of the isolation cover by adding a thermal barrier to the pump cover to reduce heat transfer. While this method primarily provides insulation, it also hinders heat dissipation. During operation, the heat within the isolation cover needs to dissipate to prevent overheating and equipment failure. Using a thermal barrier reduces cooling efficiency, further increasing the temperature inside the isolation cover.

[0004] For example, Chinese patent CN113982991B discloses a magnetically driven pump with an isolation sleeve. This invention uses a sealing mechanism to seal the inner isolation sleeve to the heat dissipation cover. The heat dissipation cover and fins dissipate heat between the inner isolation sleeve and the heat dissipation cover through heat transfer. However, during the heat dissipation process, the magnetic pump needs to dissipate not only the high-temperature medium transported by the pump body but also the heat generated by the inner and outer rotors within the pump body. Therefore, this invention cannot effectively dissipate the heat generated by the inner and outer rotors. Furthermore, magnetic pumps are used in harsh environments, such as underground construction projects, where air circulation is limited, failing to provide a good heat dissipation environment during operation and easily causing excessive internal temperature, leading to pump overload and damage. Therefore, it is necessary to design a vortex magnetic pump to address these shortcomings. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a vortex magnetic pump.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a vortex magnetic pump, comprising: a pump body, a sliding bearing fixed within the pump body, a rotating shaft installed in the sliding bearing, an impeller and an inner magnetic cylinder respectively fixed at both ends of the rotating shaft, and an outer magnetic cylinder sleeved outside the inner magnetic cylinder.

[0007] The pump body has a hollow cavity structure. The inner cavity of the pump body is equipped with an isolation cover that separates the inner magnetic cylinder and the outer magnetic cylinder. The isolation cover is sealed and fixed to the inner wall of the pump body to form a pump cavity. A circulating cooling component is installed on the outside of the isolation cover.

[0008] The circulating refrigeration assembly includes: several inner magnets sleeved on the outside of the isolation cover, a high-temperature heat exchanger attached to one side of the inner magnets, several electromagnets sleeved on the outside of the pump body, a low-temperature heat exchanger attached to one side of the electromagnets, and a heat-conducting part for magnetothermal conversion of the inner magnets and electromagnets; the two ends of the high-temperature heat exchanger and the low-temperature heat exchanger are connected through the heat-conducting part.

[0009] In a preferred embodiment of the present invention, the inner magnet is a magnetic material.

[0010] In a preferred embodiment of the present invention, a partition plate is installed on the outer side of the circulating refrigeration assembly, and the partition plate is fixedly connected to the outer wall of the isolation cover.

[0011] In a preferred embodiment of the present invention, the heat-conducting part includes: an upper shell and a lower shell, and a sealed channel for coolant to flow between the upper shell and the lower shell; the upper shell and the lower shell are sealed by bolts; the outlet of the low-temperature heat exchanger is connected to the inlet of the high-temperature heat exchanger through a sealed channel, and the inlet of the low-temperature heat exchanger is connected to the outlet of the high-temperature heat exchanger through a sealed channel.

[0012] In a preferred embodiment of the present invention, a plurality of internal magnets and a plurality of electromagnets are mounted on a support frame, the plurality of internal magnets are rotatably mounted on the support frame, and a driving unit is mounted on the support frame at the position of the electromagnets, the driving unit driving the plurality of electromagnets to rotate.

[0013] In a preferred embodiment of the present invention, mounting shells are fitted on the outer sides of the support frames of the electromagnet and the inner magnet, and the support frames are fixedly installed inside the mounting shells. The inner side of the mounting shell located at the position of the inner magnet is fixed to the outer wall of the isolation cover, and the inner side of the mounting shell located at the position of the electromagnet is fixed to the outer wall of the pump body.

[0014] In a preferred embodiment of the present invention, the driving unit includes: a plurality of fixed seats, a connecting column fixedly connected at one end to the middle of the fixed seat, a gear fixed coaxially with the connecting column, and a gear ring meshing with the gear; the other end of the connecting column is rotatably mounted on the support frame of the electromagnet, and one side of the gear ring extends to the outside of the mounting shell at the position of the electromagnet and is rotatably connected to the mounting shell.

[0015] In a preferred embodiment of the present invention, the pump body is made of modified iron functional alloy material.

[0016] In a preferred embodiment of the present invention, the method for preparing modified iron functional alloy materials includes the following steps:

[0017] S1. Obtain modified iron functional alloy powder, wherein the different raw materials and weight percentages are: rare earth 2-4%, copper powder 5-6.8%, titanium oxide powder 0.4-0.8%, zinc oxide 4.5-5%, zinc 3.2-4%, platinum 6.5-7%, aluminum 1.2-2%, antimony 6.2-6.8%, beryllium 4.2-4.5%, sodium 3.8-4.5%, and the remainder is iron powder;

[0018] S2. Place the iron powder obtained in the specified proportion into a smelting furnace to melt it into molten iron, and then add the remaining material into the molten iron in the specified proportion to melt it evenly to obtain a mixture;

[0019] S3. Pour the mixture into the mold of the magnetic pump, cast it into shape, and let it cool.

[0020] In a preferred embodiment of the present invention, the melting furnace is an electromagnetic induction melting furnace, and the melting temperature is 1110~1360℃.

[0021] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0022] (1) This invention provides a vortex magnetic pump that utilizes the interaction between the inner magnet and the electromagnet to cause a change in the magnetic entropy of the inner magnet, thereby absorbing the heat generated inside the magnetic pump and concentrating the heat within the inner magnet. The absorbed heat is then released and, in conjunction with a high-temperature heat exchanger, the released heat is carried into a low-temperature heat exchanger by a coolant for repeated circulation. This allows for efficient heat dissipation of the heat generated inside the magnetic pump, effectively preventing damage to the magnetic pump due to the inability to dissipate heat in time, and ensuring the service life of the magnetic pump.

[0023] (2) By setting a driving part at the position of the electromagnet, the angle of several electromagnets is changed, which enhances the magnetic field strength generated by the electromagnet, and then the magnetic entropy changes, which enhances the magnetocaloric effect of the inner magnet, improves the cooling effect, and accelerates the heat dissipation rate inside the magnetic pump.

[0024] (3) By setting the pump body material of the magnetic pump to a modified iron functional alloy material, the impurities in the circulating medium inside the magnetic pump are charged and form polar substances, which changes the electrostatic attraction of the flowing impurities, making it difficult for impurities in the medium to adhere to the inner wall of the magnetic pump, and also reducing the speed at which impurities such as calcium and magnesium ions in the medium are combined through ion attraction to form crystalline scale.

[0025] (4) The present invention achieves efficient heat dissipation through the magnetic entropy change between the electromagnet and the internal magnet. At the same time, the electromagnet will magnetize the magnetic pump, so that the charged impurities inside the magnetic pump are subjected to the Lorentz force in the magnetic field of the electromagnet, changing the movement direction and trajectory of the charged impurities. This can break down the scale structure in the magnetic pump, improve the descaling ability of the magnetic pump, and extend the service life of the magnetic pump. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0029] Figure 3 This is a side view of the overall structure of a preferred embodiment of the present invention;

[0030] Figure 4 This is a preferred embodiment of the present invention. Figure 3 Schematic diagram of the AA section;

[0031] Figure 5 This is a preferred embodiment of the present invention. Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a schematic diagram of the structural cooperation between the electromagnet and the driving unit in a preferred embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the installation and distribution of the internal magnets in a preferred embodiment of the present invention.

[0034] In the diagram: 1. Pump body; 2. Sliding bearing; 3. Shaft; 4. Impeller; 5. Inner magnetic cylinder; 6. Outer magnetic cylinder; 7. Isolation cover; 8. Inner magnet; 9. High-temperature heat exchanger; 10. Electromagnet; 11. Low-temperature heat exchanger; 12. Partition plate; 13. Sealing channel; 14. Support frame; 15. Mounting shell; 16. Fixed base; 17. Connecting column; 18. Gear; 19. Gear ring. Detailed Implementation

[0035] 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.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] like Figure 1 , Figure 2and Figure 3 As shown, a vortex magnetic pump includes: a pump body 1, a sliding bearing 2 fixed inside the pump body 1, a rotating shaft 3 installed in the sliding bearing 2, an impeller 4 and an inner magnetic cylinder 5 respectively fixed at both ends of the rotating shaft 3, and an outer magnetic cylinder 6 sleeved outside the inner magnetic cylinder 5.

[0040] The pump body 1 has a hollow cavity structure. The inner cavity of the pump body 1 is provided with an isolation cover 7 that separates the inner magnetic cylinder 5 and the outer magnetic cylinder 6. The isolation cover 7 is sealed and fixed to the inner wall of the pump body 1 to form a pump cavity. A circulating cooling component is installed on the outside of the isolation cover 7.

[0041] like Figure 5 , Figure 6 and Figure 7 As shown, the circulating refrigeration assembly includes: several inner magnets 8 sleeved on the outside of the isolation cover 7, the inner magnets 8 being made of magnetic material, specifically gadolinium blocks, capable of rearranging their magnetic moments under the influence of a magnetic field, thereby causing a change in magnetic entropy; a high-temperature heat exchanger 9 attached to one side of the inner magnets 8; several electromagnets 10 sleeved on the outside of the pump body 1, the electromagnets 10 being connected to an external power source to control the magnitude of the current passing through the electromagnets 10; a low-temperature heat exchanger 11 attached to one side of the electromagnets 10; and a heat-conducting part for magnetothermal conversion between the inner magnets 8 and the electromagnets 10; the two ends of the high-temperature heat exchanger 9 and the low-temperature heat exchanger 11 are connected through the heat-conducting part.

[0042] When a magnetic material is placed in a magnetic field, the magnetic field exerts a force on the spin electrons of the magnetic material, causing changes in the distribution and momentum of the spin electrons. This leads to changes in the magnetic moment of the material, altering its thermal behavior. Specifically, when a magnetic material is magnetized by an external magnetic field, the magnetic moments of the material align along the direction of the magnetic field, resulting in a change in magnetic entropy. This causes the entropy value of the material to decrease and release heat. Conversely, when the external magnetic field is removed, the magnetic moments of the material rearrange, causing the entropy value of the material to increase and absorb heat.

[0043] By energizing and de-energizing the electromagnet 10, the appearance and disappearance of the magnetic field of the electromagnet 10 are controlled. The change in the magnetic field of the electromagnet 10 affects the change in the magnetic moment of the magnetic material. That is, when the electromagnet 10 is energized and the current intensity is gradually increased, the electromagnet 10 will produce a magnetic field. The appearance of the magnetic field affects the change in the magnetic moment of the magnetic material. The magnetic moment of the magnetic material is arranged from disorder to order along the direction of the magnetic field, forming magnetic domains, which will result in heat absorption. As the current intensity gradually increases, the magnetic field intensity also gradually increases. The magnetic moment of the magnetic material is always changing towards an ordered state. That is, it needs to absorb energy from the outside to maintain the change. Therefore, during the process of gradually increasing the current intensity, the magnetic material will always be in the process of heat absorption, which will absorb the heat inside the magnetic pump to achieve the purpose of efficient cooling of the inside of the magnetic pump.

[0044] After the electromagnet 10 is de-energized, the magnetic field strength will weaken and eventually disappear. The magnetic strength of the magnetic material will also weaken and eventually disappear. This is mainly because the weakening of the magnetic field strength causes the magnetic moment of the magnetic material to change. The magnetic moment will gradually return from an ordered state to the initial disordered state, which will lead to a reduction in the magnetocaloric effect until it disappears completely. The magnetic material will release the heat it previously absorbed, and together with the high-temperature heat exchanger 9 and the heat-conducting part, the heat will be transferred to the outside of the magnetic pump.

[0045] Several inner magnets 8 are arranged in a ring around the outside of the isolation cover 7 and are evenly distributed. The distribution of electromagnets 10 is roughly the same as that of the inner magnets 8. The axial position of the electromagnets 10 is parallel to the axial position of the pump body. At this time, the rotation angle of the electromagnets 10 is 0°.

[0046] In a preferred embodiment of the present invention, a partition plate 12 is installed on the outside of the circulating cooling component. The partition plate 12 is made of ferrite to isolate the magnetic field of the electromagnet 10 after it is energized from the inner magnetic cylinder 5 and the outer magnetic cylinder 6. The partition plate 12 is fixedly connected to the outer wall of the isolation cover 7.

[0047] Magnetic materials generate a large amount of heat during both heat absorption and release. Therefore, it is necessary to properly guide the heat generated in the magnetic material to ensure that the heat can be transferred to the outside of the magnetic pump and will not accumulate inside the magnetic pump, thus preventing damage. The heat-conducting part includes: an upper shell, a lower shell, and a sealed channel 13 formed between the upper shell and the lower shell for coolant flow; the upper shell and the lower shell are sealed by bolts; the outlet of the low-temperature heat exchanger 11 is connected to the inlet of the high-temperature heat exchanger 9 through the sealed channel 13. Therefore, the high-temperature heat exchanger 9 will use the heat released by the magnetic material to heat the coolant and transfer the heated coolant to the low-temperature heat exchanger 11, where the low-temperature heat exchanger 11 will cool the coolant, allowing the coolant to circulate back to the high-temperature heat exchanger 9 for heat transfer and heat dissipation.

[0048] In this invention, several internal magnets 8 and several electromagnets 10 are mounted on a support frame 14. The internal magnets 8 are rotatably mounted on the support frame 14. Considering that the increase in current intensity will increase the magnetic field strength generated by the electromagnets 10, and the increase in magnetic field strength will enhance the magnetocaloric effect of the magnetic material, thereby absorbing more heat, however, the current intensity of the electromagnets 10 has a rated current value. Therefore, under the condition of constant current, it is impossible to increase the intensity of the magnetic field generated by the electromagnets 10, and thus it is impossible to increase the absorption of heat inside the magnetic pump by the magnetic material. Therefore, a driving unit is installed on the support frame 14 at the position of the electromagnets 10. The driving unit drives the several electromagnets 10 to rotate, thereby increasing the intensity of the magnetic field generated by the electromagnets 10.

[0049] Mounting shells 15 are fitted on the outer sides of the support frame 14 of the electromagnet 10 and the inner magnet 8. The high-temperature heat exchanger 9 and the low-temperature heat exchanger 11 are respectively mounted on the mounting shells 15 outside the inner magnet 8 and the electromagnet 10. The mounting shell 15 at the position of the inner magnet 8 is in contact with the inner magnet 8 to transfer the heat absorbed by the inner magnet 8 into the high-temperature heat exchanger 9. The support frame 14 is fixedly installed inside the mounting shell 15. The inner side of the mounting shell 15 at the position of the inner magnet 8 is fixed to the outer wall of the isolation cover 7, and the inner side of the mounting shell 15 at the position of the electromagnet 10 is fixed to the outer wall of the pump body 1.

[0050] The drive unit includes: several fixed seats 16, a connecting column 17 fixedly connected to the middle of the fixed seat 16 at one end, a gear 18 fixed coaxially with the connecting column 17, and a gear ring 19 meshing with the gear 18; the other end of the connecting column 17 is rotatably mounted on the support frame 14 of the electromagnet 10, one side of the gear ring 19 extends to the outside of the mounting shell 15 at the position of the electromagnet 10 and is rotatably connected to the mounting shell 15, a hydraulic rod is provided on one side of the gear ring 19, and a rotary potentiometer is installed at the rotation position of the electromagnet 10. The gear ring 19 is driven to rotate by the hydraulic rod, and the rotary potentiometer is used to control the change of the rotation angle of the electromagnet 10, so as to achieve the change of the magnetic field strength of the electromagnet 10.

[0051] When the magnetic pump is used with high-temperature media and the heat inside the magnetic pump is high, and the current intensity of the electromagnet 10 reaches the rated current value, the gear ring 19 is driven to rotate by controlling the hydraulic rod. Since the gear ring 19 meshes with the gear 18, and the middle position of the gear 18 and the axis position of the connecting column 17 are fixed, the gear ring 19 drives the gear 18 to rotate, which in turn drives the connecting column 17 to rotate on the support frame 14. The end of the connecting column 17 is fixed to the middle position of the fixed seat 16, and the fixed seat 16 is equipped with the electromagnet 10. Therefore, the rotation of the connecting column 17 will cause the angle of the electromagnet 10 to change, thereby increasing the magnetic field strength of the electromagnet 10.

[0052] In a preferred embodiment of the present invention, the pump body 1 is made of a modified iron functional alloy material; this functional alloy carries particles with different energies and has excellent electronic transition capabilities and strong magnetic and electrical absorption properties.

[0053] In a preferred embodiment of the present invention, the method for preparing modified iron functional alloy materials includes the following steps:

[0054] S1. Obtain modified iron functional alloy powder, wherein the different raw materials and weight percentages are: rare earth 2-4%, copper powder 5-6.8%, titanium oxide powder 0.4-0.8%, zinc oxide 4.5-5%, zinc 3.2-4%, platinum 6.5-7%, aluminum 1.2-2%, antimony 6.2-6.8%, beryllium 4.2-4.5%, sodium 3.8-4.5%, and the remainder is iron powder;

[0055] S2. Place the iron powder obtained in the specified proportion into a smelting furnace and melt it into molten iron. Then add the remaining material into the molten iron in the specified proportion and melt it evenly to obtain a mixture.

[0056] S3. Pour the mixture into the mold of the magnetic pump, cast it into shape, and let it cool.

[0057] The melting furnace is an electromagnetic induction melting furnace with a melting temperature of 1110~1360℃.

[0058] This invention can achieve different magnetic field strengths by changing the rotation angle of the electromagnet 10.

[0059] Example 1: A power supply, motor, electromagnet, magnetometer, and hydraulic rod driving the electromagnet's rotation were acquired and controlled by a controller. A rotary potentiometer was installed at the electromagnet's rotation position to monitor the rotation angle. The magnetometer was placed near the electromagnet to ensure it could accurately measure the magnetic field strength. The control system was connected to the hydraulic rod, and a hydraulic rod drive program was set so that the hydraulic rod and the rotary potentiometer could work together to control the electromagnet's rotation angle. The power supply was then turned on, and the current intensity was controlled at 110 amperes to maintain a constant current intensity throughout the experiment. The rotation angle of the electromagnet was adjusted to generate different magnetic field strengths, and the magnetic field strength data at each angle was recorded. The collected data were organized and analyzed to find the relationship between the magnetic field strength and the rotation angle, as shown in Table 1.

[0060] Implementation Example 2: Prepare two short tubes with different inner diameters, made of modified iron functional alloy, a temperature sensor, a magnetic block, an electromagnet, a power supply, a motor to drive the electromagnet's rotation (controlled by a controller), and a rotary potentiometer installed at the electromagnet's rotation position. Fit the two short tubes together and seal both ends. Place the magnetic block into the cavity formed by the fitted short tubes. Install the temperature sensor on the inner wall of the inner short tube and the electromagnet on the outer wall of the outer short tube, with the electromagnet's installation direction matching that of the magnetic block. Heat the inner short tube to 95–100°C using a heating wire. Connect the electromagnet with a current of 110 amperes to perform magnetic cooling in conjunction with the magnetic block. The temperature sensor detects and records the temperature decrease of the inner short tube within 0.5 minutes. Repeat the experiment, changing the electromagnet's rotation angle to measure and record the temperature decrease of the inner short tube within 0.5 minutes.

[0061] Example 3: A short tube made of modified iron functional alloy, an electromagnet, a power supply, a motor driving the electromagnet to rotate, and a controller were prepared. A rotary potentiometer was installed at the rotation position of the electromagnet. Scale was deposited on the inner wall of the short tube. By connecting the electromagnet with a current intensity of 110 amperes, the percentage of scale removal was observed between 28 and 30 minutes, and the data was recorded. The above experiment was then repeated. By changing the rotation angle of the electromagnet, the percentage of scale removal in the short tube within 28 to 30 minutes was measured, and the data was recorded.

[0062] Table 1 shows the relationship between the rotation angle of the electromagnet and the magnetic field strength, the absorption temperature of the magnetic material, and the descaling efficiency.

[0063] Magnetic field strength / T 3020 3250 3800 3875 4280 5220 6025 5445 4620 Temperature / °C 89.6 80.2 71.2 62.5 51.8 45 35.2 42.3 52 Descaling percentage / % 12.5 18.9 26.3 34.2 48.5 58 72.2 60.5 50

[0064] In summary, it can be concluded that as the rotation angle increases, the magnetic field strength increases accordingly. When the rotation angle of the electromagnet 10 is greater than 90°, its magnetic field strength will gradually decrease. Therefore, during the process of driving the electromagnet 10 to rotate, the rotation angle of the electromagnet 10 is within the range of 0 to 90 degrees.

[0065] As the rotation angle changes, the magnetic field strength changes, causing the magnetic material to continue to undergo magnetic entropy changes within the magnetic field. The magnetic moments in the magnetic material further change towards an ordered state, thus absorbing external energy and further absorbing heat from inside the magnetic pump. Therefore, the magnetic pump transports high-temperature media, and the pump itself generates a lot of heat. When the current intensity is increased to the rated current value, the magnetic field strength can be enhanced by changing the angle of the electromagnet 10, which further improves the heat dissipation capacity inside the magnetic pump. At the same time, as the magnetic field strength is enhanced, the efficiency of scale removal is also greatly improved.

[0066] Because modified iron functional alloy materials carry particles with different energies, they possess excellent electronic transition capabilities and strong magnetic and electrical absorption properties. Therefore, they can charge impurities in the medium transported by the magnetic pump, making the impurities polar substances. This alters the electrostatic attraction of calcium and magnesium ions in the impurities, making it difficult for them to adhere to the inner wall of the magnetic pump. Consequently, it is difficult for scale to form on the inner wall of the magnetic pump. Thus, the speed at which calcium and magnesium ions and other impurities in the medium combine through ionic attraction to form crystalline scale is reduced. Furthermore, the electromagnet 10 possesses a certain magnetic field during the energization process. Therefore, the charged impurities in the magnetic pump will be subjected to Lorentz force in the magnetic field. The Lorentz force will change the direction and trajectory of the charged impurities, further reducing the possibility of impurities combining through ionic attraction to form crystalline scale.

[0067] In this invention, when the magnetic pump needs to be cooled during operation, the electromagnet 10 is energized and the current intensity is gradually increased to the rated current value. The electromagnet 10 will generate a magnetic field, and the intensity of the magnetic field will also increase as the current intensity increases. The magnetic moments of the magnetic material will be arranged from disorder to order along the direction of the magnetic field. The magnetic material will absorb the heat inside the magnetic pump. After the electromagnet 10 is de-energized, the intensity of the magnetic field will weaken or disappear. The magnetic material will release the heat it previously absorbed, and the high-temperature heat exchanger 9 will heat the coolant through heat transfer. The coolant will then be transported to the low-temperature heat exchanger 11 through the sealed channel 13. The low-temperature heat exchanger 11 will then cool the coolant, and the cooled coolant will be circulated back to the high-temperature heat exchanger 9 for heat transfer and cooling.

[0068] Furthermore, during the process of energizing the electromagnet 10, a magnetic field is generated, which will produce Lorentz force with the charged impurities in the magnetic pump, thereby changing the direction of movement of the charged impurities and their trajectory.

[0069] When the magnetic pump transports high-temperature media, and the heat inside the magnetic pump is high, and the current intensity is increased to the rated current value, the internal temperature process of the magnetic pump is difficult to dissipate quickly. Therefore, by driving the gear ring 19 to rotate, the gear 18 meshing with the gear ring 19 is driven to rotate, so that the electromagnet 10 located on the fixed base 16 rotates within the range of 0 to 90° to enhance the strength of the magnetic field.

[0070] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A vortex magnetic pump, comprising: The pump body, a sliding bearing fixed within the pump body, a rotating shaft mounted in the sliding bearing, an impeller and an inner magnetic cylinder respectively fixed at both ends of the rotating shaft, and an outer magnetic cylinder sleeved outside the inner magnetic cylinder, characterized in that... The pump body has a hollow cavity structure. The inner cavity of the pump body is equipped with an isolation cover that separates the inner magnetic cylinder and the outer magnetic cylinder. The isolation cover is sealed and fixed to the inner wall of the pump body to form a pump cavity. A circulating cooling component is installed on the outside of the isolation cover. The circulating refrigeration assembly includes: a plurality of inner magnets sleeved on the outside of the isolation cover, a high-temperature heat exchanger attached to one side of the inner magnets, a plurality of electromagnets sleeved on the outside of the pump body, a low-temperature heat exchanger attached to one side of the electromagnets, and a heat-conducting part for magnetothermal conversion of the inner magnets and electromagnets; the two ends of the high-temperature heat exchanger and the low-temperature heat exchanger are connected through the heat-conducting part respectively. The pump body is made of modified iron functional alloy material; The preparation of the modified iron functional alloy material includes the following steps: S1. Obtain modified iron functional alloy powder, wherein the different raw materials and weight percentages are: rare earth 2-4%, copper powder 5-6.8%, titanium oxide powder 0.4-0.8%, zinc oxide 4.5-5%, zinc 3.2-4%, platinum 6.5-7%, aluminum 1.2-2%, antimony 6.2-6.8%, beryllium 4.2-4.5%, sodium 3.8-4.5%, and the remainder is iron powder; S2. Place the iron powder obtained in the specified proportion into a smelting furnace and melt it into molten iron. Then add the remaining material into the molten iron in the specified proportion and melt it evenly to obtain a mixture. S3. Pour the mixture into the mold of the magnetic pump, cast it into shape, and let it cool. The smelting furnace is an electromagnetic induction smelting furnace with a smelting temperature of 1110–1360°C.

2. The vortex magnetic pump according to claim 1, characterized in that: The internal magnet is made of magnetic material.

3. A vortex magnetic pump according to claim 1, characterized in that: A partition plate is installed on the outside of the circulating refrigeration component, and the partition plate is fixedly connected to the outer wall of the isolation cover.

4. A vortex magnetic pump according to claim 1, characterized in that: The heat-conducting part includes: an upper shell and a lower shell, and a sealed channel for coolant to flow between the upper shell and the lower shell; the upper shell and the lower shell are sealed by bolts; the outlet of the low-temperature heat exchanger is connected to the inlet of the high-temperature heat exchanger through a sealed channel, and the inlet of the low-temperature heat exchanger is connected to the outlet of the high-temperature heat exchanger through a sealed channel.

5. A vortex magnetic pump according to claim 1, characterized in that: Several internal magnets and several electromagnets are mounted on a support frame. Several internal magnets are rotatably mounted on the support frame. A drive unit is installed on the support frame where the electromagnets are located, and the drive unit drives the several electromagnets to rotate.

6. A vortex magnetic pump according to claim 5, characterized in that: The support frames of the electromagnet and the inner magnet are both fitted with mounting shells on their outer sides, and the support frames are fixedly installed inside the mounting shells. The inner side of the mounting shell located at the position of the inner magnet is fixed to the outer wall of the isolation cover, and the inner side of the mounting shell located at the position of the electromagnet is fixed to the outer wall of the pump body.

7. A vortex magnetic pump according to claim 6, characterized in that: The drive unit includes: a plurality of fixed seats, a connecting column fixedly connected at one end to the middle of the fixed seat, a gear fixed coaxially with the connecting column, and a gear ring meshing with the gear; the other end of the connecting column is rotatably mounted on the support frame of the electromagnet, and one side of the gear ring extends to the outside of the mounting shell at the position of the electromagnet and is rotatably connected to the mounting shell.

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