Self-cooling magnetic drive pump

Abstract

The utility model discloses a self-cooling magnetic drive pump which comprises a supporting base, a transmission motor is fixedly connected to one side of the surface of the supporting base, a pump body shell is arranged on one side of the transmission motor, an outer magnetic rotor is arranged in the pump body shell, a sealing plate is fixedly installed on one side of the pump body shell, and an isolation sleeve is fixedly connected to one side of the sealing plate. An inner magnetic rotor is arranged in the isolation sleeve, one end of the rotating shaft is fixedly connected with the inner magnetic rotor, the other end of the rotating shaft is fixedly connected with an impeller, a liquid cooling heat dissipation mechanism is arranged between the isolation sleeve and the pump body shell, and an air cooling cooling mechanism is arranged between the pump body shell and the transmission motor. The beneficial effects of the utility model are that liquid cooling can be carried out on the interior of the isolation sleeve through the liquid cooling heat dissipation mechanism, and liquid pumped by the magnetic drive pump can be effectively prevented from entering the space between the isolation sleeve and the inner magnetic rotor to contact and immerse the inner magnetic rotor, so that the pumped liquid is prevented from corroding the inner magnetic rotor, and the service life of the magnetic drive pump is prolonged. And the influence of liquid resistance when the inner magnetic rotor rotates is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of magnetic pump technology, and more specifically, to a self-cooling magnetic pump. Background Technology

[0002] In the field of fluid transport technology, magnetic drive pumps, as leak-free and contactless liquid transfer devices, are widely used in chemical, pharmaceutical, and electronics industries, where high-purity or corrosive liquids need to be transported. The traditional working principle of a magnetic drive pump relies on a motor driving an external magnetic rotor to rotate. The external magnetic rotor, through a strong magnetic field, non-contactly drives the internal magnetic rotor and its connected impeller to rotate synchronously, thereby achieving effective extraction and transport of the liquid. This design not only avoids the leakage problems caused by friction in traditional mechanical seals but also improves the pump's operational reliability and safety.

[0003] During the operation of a magnetic pump, the pumped liquid enters the narrow gap between the non-magnetic isolation sleeve and the inner magnetic rotor, immersing the inner magnetic rotor. This characteristic utilizes the thermal conductivity of the liquid to some extent, allowing the liquid to absorb the heat generated by the electromagnetic effect of the isolation sleeve during the pumping process. This achieves the self-cooling function of the magnetic pump, effectively extending its service life and improving its efficiency.

[0004] While the flow of liquid can remove some heat and provide a certain degree of natural cooling, the rotation of the internal magnetic rotor in the liquid increases additional frictional resistance. This not only reduces pump efficiency but may also lead to energy loss and increased noise. More importantly, prolonged contact with the pumped liquid, especially corrosive media, can cause erosion of the surface material of the internal magnetic rotor, affecting its structural integrity and service life, ultimately leading to a decline in the overall performance of the magnetic pump.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a self-cooling magnetic pump to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A self-cooling magnetic pump includes a support base, a drive motor fixedly connected to one side of the support base, a pump body housing on one side of the drive motor, an outer magnetic rotor inside the pump body housing, one side of the outer magnetic rotor fixedly connected to the drive shaft of the drive motor, a sealing plate fixedly installed on one side of the pump body housing, an isolation sleeve fixedly connected to one side of the sealing plate, an inner magnetic rotor inside the isolation sleeve, a rotating shaft rotatably mounted on the surface of the sealing plate, one end of the rotating shaft fixedly connected to the inner magnetic rotor, and the other end fixedly connected to an impeller, an extraction pipe fixedly connected to one side of the pump body housing, and a discharge pipe fixedly connected to the other side, a liquid cooling mechanism between the isolation sleeve and the pump body housing, and an air cooling mechanism between the pump body housing and the drive motor.

[0009] Furthermore, in order to achieve liquid cooling of the isolation sleeve, the liquid cooling mechanism includes a heat absorption channel inside the isolation sleeve, water supply channels on both sides inside the sealing plate, the water supply channels being connected to the heat absorption channels, a water injection channel on one side inside the pump body shell, and a drainage channel on the other side, the water injection channel and the drainage channel being connected to the water supply channels on both sides inside the sealing plate.

[0010] Furthermore, in order to improve the heat dissipation effect inside the pump body shell, the air-cooling mechanism includes a semiconductor cooling chip fixedly installed at one end of the pump body shell, the semiconductor cooling chip being rotatably connected to the drive shaft of the drive motor, and a cooling fan fixedly installed on one side of the drive shaft of the drive motor.

[0011] Furthermore, to facilitate the connection of the extraction and discharge pipes to external pipelines, flanges are fixedly connected to the ends of both the extraction and discharge pipes.

[0012] Furthermore, in order to fix the support base in place, positioning plates are fixedly connected to both sides of the support base surface, and positioning holes are opened on the surface of the positioning plates.

[0013] Furthermore, in order to facilitate the absorption of heat generated by the isolation sleeve by the cold end of the semiconductor cooling chip, a heat dissipation hole is opened on one side of the outer magnetic rotor.

[0014] Furthermore, to facilitate the pulling of the entire magnetic pump during transport, a lifting ring is fixedly connected to the top of the drive motor.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. When the magnetic pump draws liquid, part of the drawn liquid is injected into the water delivery channel through the water injection channel in the liquid cooling heat dissipation mechanism. Then, the liquid is sent into the heat absorption channel inside the isolation sleeve through the water delivery channel to absorb the heat generated by the isolation sleeve during operation. After absorbing heat, the liquid enters the drainage channel through the water delivery channel on the other side of the sealing plate, and then enters the discharge pipe through the drainage channel, and is discharged together with other drawn liquids. This achieves efficient liquid cooling heat dissipation of the isolation sleeve when the magnetic pump is working. This heat dissipation method can effectively prevent the drawn liquid from contacting and immersing the inner magnetic rotor, thereby effectively avoiding corrosion of the inner magnetic rotor and the influence of liquid resistance when the inner magnetic rotor rotates.

[0017] 2. By installing the cold end of the thermoelectric cooler inside the pump body, the cold end can effectively absorb the heat inside the pump body shell after the thermoelectric cooler is energized. Furthermore, the rotation of the drive shaft of the drive motor drives the cooling fan to continuously dissipate heat from the hot end of the thermoelectric cooler, thereby further improving the internal heat dissipation efficiency and effect of the magnetic pump during operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the surface structure of a self-cooling magnetic pump according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the back structure of a self-cooling magnetic pump according to an embodiment of the present utility model;

[0021] Figure 3 This is an internal cross-sectional view of a self-cooling magnetic pump according to an embodiment of the present invention;

[0022] Figure 4 This is an internal cross-sectional side view of a self-cooling magnetic pump according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Support base; 2. Drive motor; 3. Pump body shell; 4. External magnetic rotor; 5. Sealing plate; 6. Isolation sleeve; 7. Internal magnetic rotor; 8. Rotating shaft; 9. Impeller; 10. Extraction pipe; 11. Discharge pipe; 12. Liquid cooling mechanism; 1201. Heat absorption channel; 1202. Water supply channel; 1203. Water injection channel; 1204. Drainage channel; 13. Air cooling mechanism; 1301. Semiconductor refrigeration chip; 1302. Cooling fan; 14. Flange; 15. Positioning plate; 16. Positioning hole; 17. Heat dissipation hole; 18. Lifting ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] According to an embodiment of the present invention, a self-cooling magnetic pump is provided.

[0027] Example 1:

[0028] like Figures 1-4 As shown, a self-cooling magnetic pump according to an embodiment of the present invention includes a support base 1. A drive motor 2 is fixedly connected to one side of the surface of the support base 1 to provide power to the magnetic pump. A pump body shell 3 is provided on one side of the drive motor 2. An outer magnetic rotor 4 is provided inside the pump body shell 3. One side of the outer magnetic rotor 4 is fixedly connected to the drive shaft of the drive motor 2. A sealing plate 5 is fixedly installed on one side of the pump body shell 3. An isolation sleeve 6 is fixedly connected to one side of the sealing plate 5. An inner magnetic rotor 7 is provided inside the isolation sleeve 6. The outer magnetic rotor 4 and the inner magnetic rotor 7 are respectively installed on the inner and outer sides of the isolation sleeve 6. A rotating shaft 8 is rotatably mounted on the surface of the sealing plate 5. One end of the rotating shaft 8 is fixedly connected to the inner magnetic rotor 7, and the other end is fixedly connected to the impeller 9. The outer magnetic rotor 4 is driven to rotate by the drive motor 2. The magnetic field generated by the outer magnetic rotor 4 drives the inner magnetic rotor 7 and the impeller 9 to rotate synchronously, thereby realizing the extraction of liquid. One side of the pump body shell 3 is fixedly connected to the extraction pipe 10, and the other side is fixedly connected to the discharge pipe 11 for transmitting the extracted and discharged liquid. A liquid cooling heat dissipation mechanism 12 is provided between the isolation sleeve 6 and the pump body shell 3 for liquid cooling heat dissipation of the isolation sleeve 6. An air cooling cooling mechanism 13 is provided between the pump body shell 3 and the drive motor 2 to further improve the heat dissipation efficiency inside the pump body shell 3.

[0029] like Figures 1-4As shown, the liquid cooling heat dissipation mechanism 12 includes multiple heat absorption channels 1201 inside the isolation sleeve 6. These channels are interconnected within the isolation sleeve 6 and are used to absorb the heat generated during the operation of the isolation sleeve 6 after liquid enters. A pair of water delivery channels 1202 are opened on both sides of the inside of the sealing plate 5. These channels are connected to the heat absorption channels 1201 and are used to transfer the liquid during extraction, thereby delivering a portion of the liquid into the heat absorption channels 1201. A water injection channel 1203 is opened on one side of the pump body housing 3, and a drainage channel is opened on the other side. The water injection channel 1204, water inlet channel 1203, and drain channel 1204 are respectively connected to the water delivery channels 1202 on both sides inside the sealing plate 5. The water injection channel 1203 is located on one side of the extraction pipe 10, and can inject part of the liquid into the water delivery channel 1202 when the impeller 9 rotates to extract liquid. The drain channel 1204 is located on one side of the discharge pipe 11, and can allow the liquid discharged from the heat absorption channel 1201 and the water delivery channel 1202 to be discharged out of the pump body shell 3 along with the liquid in the discharge pipe 11. The air-cooled cooling mechanism 13 includes one end of the pump body shell 3 fixed. A thermoelectric cooler 1301 is fixedly installed, and the thermoelectric cooler 1301 is rotatably connected to the drive shaft of the drive motor 2. A cooling fan 1302 is fixedly installed on one side of the drive shaft of the drive motor 2. The cold end of the thermoelectric cooler 1301 is installed inside the pump body housing 3 to absorb the heat generated inside the pump body housing 3 when energized. The hot end is installed outside the pump body housing 3 on one side of the cooling fan 1302. Through the rotation of the drive motor 2, the cooling fan 1302 continuously dissipates heat from the hot end of the thermoelectric cooler 1301. The ends of the extraction pipe 10 and the discharge pipe 11 are both fixed. A flange 14 is fixedly connected to facilitate the connection of the extraction pipe 10 and the discharge pipe 11 to external pipelines; positioning plates 15 are fixedly connected to both sides of the surface of the support base 1, and positioning holes 16 are opened on the surface of the positioning plates 15 to facilitate the fixing of the support base 1 to the working position by bolts; a heat dissipation hole 17 is opened on one side of the external magnetic rotor 4 to facilitate the absorption of heat generated by the isolation sleeve 6 by the cold end of the semiconductor cooling chip 1301 through the heat dissipation hole 17; a lifting ring 18 is fixedly connected to the top of the drive motor 2 to facilitate the lifting and movement of the entire magnetic pump during transportation.

[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0031] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, the transmission motor 2 drives the outer magnetic rotor 4 to rotate, and the magnetic field generated by the outer magnetic rotor 4 drives the inner magnetic rotor 7 and impeller 9 to rotate synchronously, thereby realizing the extraction of liquid. When the magnetic pump extracts liquid, part of the extracted liquid is injected into the water delivery channel 1202 through the water injection channel 1203 in the liquid cooling heat dissipation mechanism 12, and then the liquid is sent into the heat absorption channel 1201 in the isolation sleeve 6 through the water delivery channel 1202 to absorb the heat generated by the isolation sleeve 6 during operation. After absorbing the heat, the liquid passes through the other side of the sealing plate 5. The water enters the drainage channel 1204 through the water supply channel 1202, and then enters the discharge pipe 11 through the drainage channel 1204, and is discharged along with other pumped liquids. This achieves efficient liquid cooling of the isolation sleeve 6 when the magnetic pump is working. Furthermore, by installing the cold end of the semiconductor cooling chip 1301 inside the pump body, the cold end can effectively absorb the heat inside the pump body shell 3 after the semiconductor cooling chip 1301 is powered on. Through the rotation of the drive shaft of the drive motor 2, the cooling fan 1302 continuously and efficiently dissipates heat from the hot end of the semiconductor cooling chip 1301, thereby further improving the internal heat dissipation efficiency and effect when the magnetic pump is working.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cooling magnetic pump, characterized in that, The system includes a support base (1), a drive motor (2) fixedly connected to one side of the support base (1), a pump housing (3) on one side of the drive motor (2), an external magnetic rotor (4) inside the pump housing (3), one side of the external magnetic rotor (4) fixedly connected to the drive shaft of the drive motor (2), a sealing plate (5) fixedly installed on one side of the pump housing (3), an isolation sleeve (6) fixedly connected to one side of the sealing plate (5), and an inner sleeve (6) inside the isolation sleeve (6). The magnetic rotor (7) has a rotating shaft (8) rotatably mounted on the surface of the sealing plate (5). One end of the rotating shaft (8) is fixedly connected to the inner magnetic rotor (7), and the other end is fixedly connected to an impeller (9). One side of the pump body shell (3) is fixedly connected to an extraction pipe (10), and the other side is fixedly connected to a discharge pipe (11). A liquid cooling heat dissipation mechanism (12) is provided between the isolation sleeve (6) and the pump body shell (3). An air cooling cooling mechanism (13) is provided between the pump body shell (3) and the drive motor (2).

2. The self-cooling magnetic pump according to claim 1, characterized in that, The liquid cooling heat dissipation mechanism (12) includes a heat absorption channel (1201) inside the isolation sleeve (6), water supply channels (1202) on both sides inside the sealing plate (5), the water supply channels (1202) being connected to the heat absorption channel (1201), a water injection channel (1203) on one side inside the pump body shell (3), and a drainage channel (1204) on the other side, the water injection channel (1203) and the drainage channel (1204) being connected to the water supply channels (1202) on both sides inside the sealing plate (5).

3. A self-cooling magnetic pump according to claim 1, characterized in that, The air-cooled cooling mechanism (13) includes a semiconductor cooling chip (1301) fixedly installed at one end of the pump body shell (3). The semiconductor cooling chip (1301) is rotatably connected to the drive shaft of the drive motor (2). A cooling fan (1302) is fixedly installed on one side of the drive shaft of the drive motor (2).

4. A self-cooling magnetic pump according to claim 1, characterized in that, The ends of the extraction pipe (10) and the discharge pipe (11) are both fixedly connected to flanges (14).

5. A self-cooling magnetic pump according to claim 1, characterized in that, Positioning plates (15) are fixedly connected to both sides of the surface of the support base (1), and positioning holes (16) are opened on the surface of the positioning plates (15).

6. A self-cooling magnetic pump according to claim 1, characterized in that, The external magnetic rotor (4) has a heat dissipation hole (17) on one side.

7. A self-cooling magnetic pump according to claim 1, characterized in that, A lifting ring (18) is fixedly connected to the top of the drive motor (2).

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