A high-temperature-resistant and corrosion-resistant magnetic pump

Abstract

The utility model belongs to the technical field of magnetic force pump, concretely relates to the utility model provides a kind of high-temperature-resistant, corrosion-resistant magnetic force pump, including pump body, connecting seat, motor, outer magnet, inner magnet and isolating sleeve, the pump body and motor are connected by connecting seat, the output shaft of outer magnet is connected with motor, the inner magnet is located inside isolating sleeve, the isolating sleeve outside is equipped with cooling pipe, the cooling pipe spiral winding is on isolating sleeve, the output shaft of motor is equipped with radiating blade. The cooling pipe on isolating sleeve carries away heat on isolating sleeve, the heat conduction of inner magnet and the shaft connected with inner magnet is on isolating sleeve, heat is carried away by cooling pipe to realize good cooling of inner magnet, and radiating blade can cool outer magnet. So that the magnetic force pump can transport higher temperature medium, and has better practical effect.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic pump technology, and specifically relates to a magnetic pump that is resistant to high temperature and corrosion. Background Technology

[0002] A magnetic drive pump mainly consists of several parts, including a pump head, a magnetic drive unit, a motor, and a base. The magnetic drive unit comprises an outer magnetic rotor, an inner magnetic rotor, and a non-magnetic isolation sleeve. When the motor drives the outer magnetic rotor to rotate via a coupling, the magnetic field penetrates the air gap and the non-magnetic isolation sleeve, causing the inner magnetic rotor, connected to the impeller, to rotate synchronously. This achieves contactless synchronous power transmission, transforming a potentially leaky dynamic seal structure into a zero-leakage static seal structure.

[0003] Patent CN220566249U discloses a high-temperature and high-pressure resistant magnetic pump. It utilizes a fixed and a movable housing outside the magnetic actuator, filled with water to distribute pressure across the actuator. Cold water outside the actuator also provides cooling. A semiconductor cooling chip dissipates heat generated inside the housings into the air. This significantly improves the pump's high-temperature and high-pressure resistance, especially considering material limitations. However, the cooling effect is primarily concentrated on the external magnetic component, with limited cooling of the internal magnet. Under high-temperature conditions, the internal magnet is easily damaged, affecting the pump's operation. Furthermore, the pump lacks corrosion resistance, making it unsuitable for transporting corrosive media.

[0004] Therefore, the above-mentioned problems have become technical issues that urgently need to be solved. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a high-temperature resistant and corrosion-resistant magnetic pump, thereby improving the high-temperature resistance and corrosion resistance characteristics of the magnetic pump.

[0006] Technical solution: To achieve the above objectives, this utility model provides a high-temperature and corrosion-resistant magnetic pump, including a pump body, a connecting seat, a motor, an outer magnet, an inner magnet, and an isolation sleeve. The pump body and the motor are connected through the connecting seat. The outer magnet is connected to the output shaft of the motor. The inner magnet is located inside the isolation sleeve. A cooling pipe is provided on the outside of the isolation sleeve. The cooling pipe is spirally wound on the isolation sleeve. Heat dissipation blades are provided on the output shaft of the motor.

[0007] The cooling pipes on the isolation sleeve carry away the heat from the isolation sleeve. The heat from the inner magnet and the shaft connected to the inner magnet is conducted to the isolation sleeve, and the heat is carried away by the cooling pipes to achieve good cooling of the inner magnet. The heat dissipation fins can cool the outer magnet.

[0008] Furthermore, the pump body is provided with a cooling medium inlet and a cooling medium outlet, which are connected to a cooling pipe. The pump body is also provided with a liquid inlet and a liquid outlet. The cooling medium is recycled, entering from the cooling medium inlet and exiting from the cooling medium outlet for heat exchange.

[0009] Furthermore, the connecting seat is provided with a vent, and the heat dissipation blades are located between the vent and the external magnet. The vent is equipped with a filter screen. The heat dissipation blades draw in external cold air and blow it towards the external magnet for air cooling, while the filter screen on the vent prevents external impurities from entering the machine.

[0010] Furthermore, the isolation sleeve is disposed between the connecting seat and the pump body, and the isolation sleeve is sealed to both of them, with the inner magnetic rotatable part located inside the isolation sleeve.

[0011] Furthermore, the internal magnet is connected to a pump wheel via a rotating shaft, and the pump wheel is located in the pump body.

[0012] Furthermore, both the isolation sleeve and the pump impeller are made of stainless steel. Stainless steel has excellent corrosion resistance and high-temperature resistance, and the stainless steel isolation sleeve facilitates the conduction of heat from the internal magnet, improving heat dissipation.

[0013] Furthermore, the pump body is equipped with heat dissipation fins.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0015] This invention provides a high-temperature and corrosion-resistant magnetic pump with a simple structure and reasonable design. It improves the high-temperature and corrosion resistance of the magnetic pump from both structural and material dimensions. The inner magnet and isolation sleeve are cooled by a cooling pipe, and the outer magnet is cooled by a cooling fan. At the same time, the stainless steel isolation sleeve and pump impeller are high-temperature and corrosion resistant. The stainless steel isolation sleeve can also conduct heat away from the inner magnet, further improving the heat dissipation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-temperature resistant and corrosion-resistant magnetic pump according to the present invention.

[0017] In the diagram: 1-Pump body, 11-Cooling medium inlet, 12-Cooling medium outlet, 13-Liquid inlet, 14-Liquid outlet, 2-Connecting seat, 21-Ventilation port, 3-Motor, 4-External magnet, 5-Internal magnet, 6-Isolation sleeve, 7-Cooling pipe, 8-Heat dissipation blades, 9-Pump wheel, 10-Heat dissipation fins. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] Example 1:

[0020] like Figure 1 As shown, a high-temperature and corrosion-resistant magnetic pump includes a pump body 1, a connecting seat 2, a motor 3, an outer magnet 4, an inner magnet 5, and an isolation sleeve 6. The pump body 1 and the motor 3 are connected through the connecting seat 2. The outer magnet 4 is connected to the output shaft of the motor 3. The inner magnet is located inside the isolation sleeve 6. A cooling pipe 7 is provided on the outside of the isolation sleeve 6, and the cooling pipe 7 is spirally wound on the isolation sleeve 6.

[0021] When the magnetic pump is working, the motor drives the outer magnet 4 to rotate. Through the action of the magnetic field, the magnetic lines of force pass through the isolation sleeve 6 and drive the inner magnet 5 and the pump wheel 9 to rotate synchronously. When conveying high-temperature media, its heat will be transferred to the inner magnet 5, the outer magnet 4 and the isolation sleeve 6. The cooling medium in the cooling pipe 7 circulates and carries away the heat, thus achieving the cooling effect.

[0022] The pump body 1 is provided with a cooling medium inlet 11 and a cooling medium outlet 12, which are connected to the cooling pipe 7. The pump body 1 is also provided with a liquid inlet 13 and a liquid outlet 14. The cooling medium can be water, liquid hydrogen, etc., depending on the situation.

[0023] Specifically, the isolation sleeve 6 is disposed between the connecting seat 2 and the pump body 1, and the isolation sleeve 6 is sealed to both. The inner magnet 5 is rotatably disposed inside the isolation sleeve 6. The inner magnet 5 is connected to the pump wheel 9 via a rotating shaft, and the pump wheel 9 is located in the pump body 1.

[0024] Both the isolation sleeve 6 and the pump impeller 9 are made of stainless steel. Both the isolation sleeve 6 and the pump impeller 9 will be in direct contact with the medium. In terms of material, the stainless steel isolation sleeve 6 and pump impeller 9 have corrosion resistance and high-temperature resistance; however, other alloy materials with the above properties are also acceptable. In terms of heat resistance, the stainless steel isolation sleeve 6 can conduct heat from the inner magnet 5 and then cool it through the cooling medium, effectively preventing the inner magnet 5 from overheating.

[0025] In addition, the pump body 1 is provided with heat dissipation fins 10, which play an auxiliary role in heat dissipation.

[0026] Example 2:

[0027] Please refer to it again. Figure 1To further improve heat dissipation and the heat resistance of the magnetic pump, based on Embodiment 1, in this embodiment: the output shaft of the motor 3 is provided with heat dissipation blades 8, the connecting seat 2 is provided with a vent 21, the heat dissipation blades 8 are located between the vent 21 and the external magnet 4, and the vent 21 is provided with a filter screen.

[0028] When motor 3 is working, the cooling blades 8 rotate, drawing cool air from outside into the connecting seat 2. The cool air is continuously blown onto the external magnet 4, carrying away the heat from its upper part and achieving cooling. This allows the magnetic pump to operate stably under the same working conditions, while also enabling it to operate at higher power, which helps to improve the overall output power of the magnetic pump.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A high-temperature resistant and corrosion-resistant magnetic pump, characterized in that, The pump body (1), connecting seat (2), motor (3), external magnet (4), internal magnet (5) and isolation sleeve (6) are included. The pump body (1) and motor (3) are connected through connecting seat (2). The external magnet (4) is connected to the output shaft of motor (3). The internal magnet is located inside the isolation sleeve (6). A cooling pipe (7) is provided on the outside of the isolation sleeve (6). The cooling pipe (7) is spirally wound on the isolation sleeve (6). Heat dissipation blades (8) are provided on the output shaft of motor (3).

2. The high-temperature resistant and corrosion-resistant magnetic pump according to claim 1, characterized in that, The pump body (1) is provided with a cooling medium inlet (11) and a cooling medium outlet (12), which are connected to the cooling pipe (7). The pump body (1) is also provided with a liquid inlet (13) and a liquid outlet (14).

3. The high-temperature resistant and corrosion-resistant magnetic pump according to claim 1, characterized in that, The connecting seat (2) is provided with a vent (21), the heat dissipation blade (8) is located between the vent (21) and the external magnet (4), and the vent (21) is provided with a filter screen.

4. A high-temperature resistant and corrosion-resistant magnetic pump according to claim 1, characterized in that, The isolation sleeve (6) is located between the connecting seat (2) and the pump body (1), and the isolation sleeve (6) is sealed to both of them. The inner magnet (5) is rotatably located inside the isolation sleeve (6).

5. A high-temperature resistant and corrosion-resistant magnetic pump according to claim 1, characterized in that, The internal magnet (5) is connected to the pump wheel (9) via a rotating shaft, and the pump wheel (9) is located in the pump body (1).

6. A high-temperature resistant and corrosion-resistant magnetic pump according to claim 5, characterized in that, Both the isolation sleeve (6) and the pump wheel (9) are made of stainless steel.

7. A high-temperature resistant and corrosion-resistant magnetic pump according to claim 1, characterized in that, The pump body (1) is provided with heat dissipation fins (10).

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