Isolation sleeve of magnetic drive pump

Abstract

The utility model discloses a magnetic drive pump spacer sleeve which comprises a sleeve body, the sleeve body comprises an outer layer sleeve and an inner layer sleeve, a plurality of groups of first reinforcing plates and a plurality of groups of second reinforcing plates are arranged between the outer layer sleeve and the inner layer sleeve in an inclined mode, and the two ends of the adjacent first reinforcing plates and second reinforcing plates are connected with each other. A detection hole is formed in one end of the outer-layer sleeve, a pressure detection meter is arranged in the detection hole, a water inlet pipe is arranged at one end of the inner-layer sleeve, a water outlet pipe is arranged at the other end of the inner-layer sleeve, a heat dissipation cavity is formed between the outer-layer sleeve and the inner-layer sleeve, a contact ring is arranged on the inner wall of the heat dissipation cavity, and the contact ring is connected with the outer-layer sleeve and the inner-layer sleeve. The multiple sets of contact rings are evenly distributed on the inner wall of the heat dissipation cavity, heat dissipation columns are arranged between the contact rings in the same set, and the equipment is higher in impact resistance, better in cooling effect and convenient to use and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic pumps, and more specifically, to an isolation sleeve of a magnetic pump. Background Art

[0002] The magnetic pump is a special pump. When working, the outer magnetic rotor and the inner magnetic rotor cooperate to drive the inner magnetic rotor and the pump shaft to rotate through magnetic force. During operation, a large pressure will be generated inside. An isolation sleeve needs to be set as a pressure-bearing component to ensure the static seal inside the magnetic pump.

[0003] Most common isolation sleeves are simple single-layer structures with limited structural strength, while the magnetic pump has greater strength when working. Since the isolation sleeve is relatively thin and has limited pressure-bearing capacity, the magnetic pump will be in frequent vibration when working, which can easily affect the isolation sleeve, and the internal medium will impact the isolation sleeve, causing damage and rupture of the isolation sleeve, affecting the use of the equipment; and after the isolation sleeve is damaged, it may not be discovered at the first time. If the equipment continues to work, other equipment in the magnetic pump may be damaged, leading to further danger; in addition, general magnetic pumps rely on introducing medium between the inner magnetic rotor and the isolation sleeve for cooling, but the medium structure is located inside the magnetic pump and is difficult to control. When the conveying medium is gas, or the magnetic transmission device cannot contact the liquid medium, the eddy current heat of the metal isolation sleeve cannot be effectively alleviated, which will cause problems with the equipment. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a magnetic pump isolation sleeve to solve the technical problem of the short service life of the common magnetic pump isolation sleeve mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic pump isolation sleeve, comprising a sleeve body, the sleeve body comprising an outer sleeve and an inner sleeve, a first reinforcing plate and a second reinforcing plate are arranged between the outer sleeve and the inner sleeve, the first reinforcing plate and the second reinforcing plate are both inclinedly arranged in multiple groups, and the inclination directions are opposite, the two ends of the adjacent first reinforcing plate and the second reinforcing plate are connected to each other, and are also connected to the inner wall of the outer sleeve and the outer wall of the inner sleeve, a detection hole is opened at one end of the outer sleeve, and a pressure detection gauge is arranged in the detection hole;

[0006] A water inlet pipe is provided at one end of the inner sleeve, and a water outlet pipe is provided at the other end. A heat dissipation cavity is provided between the outer sleeve and the inner sleeve. The first reinforcing plate and the second reinforcing plate are both arranged in the heat dissipation cavity. Contact rings are provided on the inner wall of the heat dissipation cavity. The contact rings are provided in multiple groups and are evenly distributed on the inner wall of the heat dissipation cavity, and heat dissipation columns are provided between the contact rings in the same group.

[0007] The utility model is further configured as follows: a first mounting ring is provided at the bottom of the outer sleeve, a second mounting ring is provided at the bottom of the inner sleeve, a fixing ring is provided on the first mounting ring, a fitting groove is provided on the inner side of the fixing ring, a buffer pad is provided on the inner side of the fitting groove, and the fitting groove cooperates with the first mounting ring and the second mounting ring through the buffer pad to reduce the impact caused by frequent vibrations.

[0008] The utility model is further configured such that a positioning block is provided at the upper end of the first mounting ring, a positioning groove is provided on the fixing ring, and the positioning groove cooperates with the positioning block to ensure stable installation.

[0009] The utility model is further configured such that the water inlet pipe and the water outlet pipe both pass through the second mounting ring, and a through hole is provided on the fixing ring, and the through hole cooperates with the water inlet pipe and the water outlet pipe to avoid structural conflict.

[0010] The utility model is further configured that a partition plate is provided in the heat dissipation cavity, and a water outlet is provided at the upper end of the partition plate to increase the time for cooling water to participate in temperature reduction.

[0011] The utility model is further configured that the heat dissipation cavity is provided with a connecting ring at the water outlet, and the connecting ring is provided with heat dissipation fins to further improve the cooling effect.

[0012] The utility model is further configured such that the heat dissipation fins include a first fin and a second fin, the first fin is arranged at the top, the second fin is arranged at the bottom, and a plurality of the first fins and the second fins are arranged, and are staggered around the connecting ring so that the cooling water can better participate in cooling.

[0013] The utility model is further configured that a convex block is provided on the inner side of the inner sleeve, and a plurality of convex blocks are provided and are evenly arranged on the inner sleeve at equal intervals to mitigate the impact of the medium.

[0014] Compared with the prior art, the utility model provides a magnetic pump isolation sleeve, which has the following beneficial effects:

[0015] The outer sleeve and the inner sleeve cooperate to form a sleeve body, and a first reinforcing plate and a second reinforcing plate are arranged between the outer sleeve and the inner sleeve. The first reinforcing plate and the second reinforcing plate cooperate to improve the structural strength inside the sleeve body, improve the impact resistance of the sleeve body, and enhance the service life of the isolation sleeve.

[0016] The outer sleeve and the inner sleeve form a space as a heat dissipation cavity, and the heat dissipation cavity is connected to the outside through the cooperation of the water inlet pipe and the water outlet pipe, so that fresh cooling water is directly supplied to the sleeve. The contact ring and the heat dissipation column cooperate to provide a heat conduction structure, so that the cooling water absorbs the heat of the isolation sleeve and is taken out of the equipment, thereby improving the cooling effect and ensuring the stable operation of the magnetic pump.

[0017] The sleeve is fixed by a fixing ring, and the fixing ring presses the sleeve through the fitting groove and contacts the sleeve through the buffer pad. The buffer pad provides a buffering effect, which can reduce the impact of vibration on the isolation sleeve when the magnetic pump is working, reduce the vibration of the isolation sleeve, and ensure the stability of the equipment.

[0018] By setting a detection hole connected to the inside of the sleeve and using a pressure gauge for detection, when the sleeve is damaged, the internal pressure will change. Workers can directly see the information through the pressure gauge, which can promptly remind workers that the equipment is damaged and require timely shutdown for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front structure of a magnetic pump isolation sleeve in the utility model;

[0020] Figure 2 This is a schematic diagram of the matching structure of the sleeve body after the fixing ring is removed in the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the fixing ring in the utility model;

[0022] Figure 4 This is a cross-sectional view of the internal structure of the upper end of the casing of the utility model;

[0023] Figure 5 This is a cross-sectional view of the internal structure of the side end of the casing of the utility model;

[0024] Figure 6 It is a schematic diagram of the internal matching structure of the side ends of the outer sleeve and the inner sleeve in the utility model.

[0025] In the figure: 1. sleeve body; 2. outer sleeve; 3. inner sleeve; 4. first reinforcement plate; 5. second reinforcement plate; 6. detection hole; 7. pressure detection gauge; 8. water inlet pipe; 9. water outlet pipe; 10. heat dissipation cavity; 11. contact ring; 12. heat dissipation column; 13. first mounting ring; 14. second mounting ring; 15. fixing ring; 16. fitting groove; 17. buffer pad; 18. positioning block; 19. positioning groove; 20. through hole; 21. partition plate; 22. water outlet; 23. connecting ring; 24. heat dissipation fin; 25. first fin; 26. second fin; 27. raised block. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 A magnetic pump isolation sleeve comprises a sleeve body 1, wherein the sleeve body 1 comprises an outer sleeve 2 and an inner sleeve 3, wherein a first reinforcing plate 4 and a second reinforcing plate 5 are arranged between the outer sleeve 2 and the inner sleeve 3, wherein the first reinforcing plate 4 and the second reinforcing plate 5 are arranged in a tilted manner in multiple groups, and the tilting directions are opposite, wherein the two ends of adjacent first reinforcing plates 4 and second reinforcing plates 5 are connected to each other, and are also connected to the inner wall of the outer sleeve 2 and the outer wall of the inner sleeve 3, and a detection hole 6 is opened at one end of the outer sleeve 2, and a pressure detection gauge 7 is arranged in the detection hole 6;

[0030] A water inlet pipe 8 is provided at one end of the inner sleeve 3, and a water outlet pipe 9 is provided at the other end. A heat dissipation cavity 10 is provided between the outer sleeve 2 and the inner sleeve 3. The first reinforcing plate 4 and the second reinforcing plate 5 are both arranged in the heat dissipation cavity 10. Contact rings 11 are provided on the inner wall of the heat dissipation cavity 10. There are multiple groups of contact rings 11, which are evenly distributed on the inner wall of the heat dissipation cavity 10, and heat dissipation columns 12 are provided between the contact rings 11 of the same group.

[0031] In this embodiment, the outer sleeve 2 and the inner sleeve 3 cooperate to form the sleeve body 1, and with the cooperation of the first reinforcement plate 4 and the second reinforcement plate 5, a stronger structural strength is provided, thereby improving the structural strength of the sleeve body 1. When the sleeve body 1 is impacted, the wave-like reinforcement structure composed of the first reinforcement plate 4 and the second reinforcement plate 5 will support the contact end of the sleeve body 1, and disperse the impact force to all the first reinforcement plates 4 and the second reinforcement plates 5, so that the sleeve body 1 can resist the impact as a whole, thereby improving the impact resistance of the sleeve body 1. When the outer sleeve 2 or the inner sleeve 3 is damaged, the medium entering the interior will be lost, and the pressure will change. The pressure detection gauge 7 detects the pressure change through the detection hole 6, which is convenient for workers to judge the equipment status in time and replace the isolation sleeve.

[0032] More specifically, the water inlet pipe 8 is connected to the coolant supply device, and the water outlet pipe 9 is connected to the coolant recovery device, so as to stably supply coolant to the equipment. The coolant stably flows into the heat dissipation cavity 10 from the water inlet pipe 8, and then flows out from the water outlet pipe 9. During this period, the coolant will contact the heat dissipation column 12, and absorb the heat from the surface of the isolation sleeve conducted by the heat dissipation column 12 through the contact ring 11. After the coolant absorbs the heat, it takes the heat out and cools the isolation sleeve to prevent the isolation sleeve from being demagnetized by heat. In addition, the coolant is stably supplied to maintain a stable flow, so that the pressure in the heat dissipation cavity 10 remains stable, which is convenient for cooperation with the pressure detection gauge 7.

[0033] See also Figure 1-3 As an implementation method for stable operation: a first mounting ring 13 is provided at the bottom of the outer sleeve 2, a second mounting ring 14 is provided at the bottom of the inner sleeve 3, a fixing ring 15 is provided on the first mounting ring 13, a fitting groove 16 is provided on the inner side of the fixing ring 15, a buffer pad 17 is provided on the inner side of the fitting groove 16, and the fitting groove 16 cooperates with the first mounting ring and the second mounting ring 14 through the buffer pad 17.

[0034] Specifically, the outer sleeve 2 and the inner sleeve are fitted together by the first mounting ring 13 and the second mounting ring 14, and the first mounting ring 13 and the second mounting ring 14 have sealing ability to ensure the stable fit between the outer sleeve 2 and the inner sleeve, and the fixing ring 15 cooperates with the first mounting ring 13 and the second mounting ring 14 through the fitting groove 16. After the fixing ring 15 is tightened and fixed by the fixing bolt structure, the fixing ring 15 will press the first mounting ring 13 to stably fit the first mounting ring 13 and the second mounting ring 14, and during the operation of the magnetic pump, the fixing ring 15 presses the sleeve body 1 through the buffer pad 17 to reduce the influence of vibration on the sleeve body 1 and ensure the stable installation of the sleeve body 1.

[0035] Please refer to Figure 1-Figure 3 As a further implementation of the installation mechanism: a positioning block 18 is provided at the upper end of the first installation ring 13 , and a positioning groove 19 is opened on the fixing ring 15 , and the positioning groove 19 cooperates with the positioning block 18 .

[0036] Specifically, when installing the fixing ring 15, the positioning groove 19 is made to correspond to the positioning block 18. As the fixing ring 15 is installed, the positioning block 18 is inserted into the positioning groove 19. The positioning groove 19 is limited by the positioning block 18, so that the fixing ring 15 can stably cooperate with the first installation ring 13 to perform the fixing work.

[0037] Please refer to Figure 1-Figure 3 As a further implementation of the installation mechanism: the water inlet pipe 8 and the water outlet pipe 9 both pass through the second installation ring 14, and a through hole 20 is opened on the fixing ring 15, and the through hole 20 cooperates with the water inlet pipe 8 and the water outlet pipe 9.

[0038] Specifically, when installing the fixing ring 15, adjust the angle of the fixing ring 15 so that the water inlet pipe 8 and the water outlet pipe 9 are aligned with the through holes 20 at both ends of the fixing ring 15. During installation, the fixing ring 15 contacts the second installation ring 14 through the fitting groove 16, and the water inlet pipe 8 and the water outlet pipe 9 will enter the through hole 20. On the one hand, the setting of the through hole 20 can prevent the water inlet pipe 8 and the water outlet pipe 9 from interfering with the installation of the fixing ring 15. On the other hand, the water inlet pipe 8 and the water outlet pipe 9 will restrict the fixing ring 15 through the through hole 20, thereby limiting the rotation of the fixing ring 15 and ensuring the stable installation of the fixing ring 15.

[0039] Please refer to Figure 6 As a further implementation of the heat dissipation chamber 10 structure: a partition plate 21 is provided in the heat dissipation chamber 10, and a water outlet 22 is provided at the upper end of the partition plate 21.

[0040] Specifically, the heat dissipation cavity 10 is divided into two parts by the partition plate 21, so that the coolant entering the heat dissipation cavity 10 can only flow into the other half through the water outlet 22, so that the coolant can fully flow inside the heat dissipation cavity, thereby improving the heat dissipation efficiency.

[0041] Please refer to Figure 4-Figure 6 As a further implementation of the heat dissipation cavity 10 structure: the heat dissipation cavity 10 is provided with a connecting ring 23 at the water outlet 22 , and the connecting ring 23 is provided with heat dissipation fins 24 .

[0042] Specifically, by connecting the ring 23 to each heat sink fin 24 , when cooling water flows through the water inlet 22 , it will contact the heat sink fin 24 and absorb the heat on the heat sink fin 24 , thereby further improving the heat dissipation and cooling effect.

[0043] Please refer to Figure 4 and Figure 5 As a further implementation of the heat dissipation fin 24 mechanism: the heat dissipation fin 24 includes a first fin 25 and a second fin 26, the first fin 25 is arranged at the top, and the second fin 26 is arranged at the bottom, and there are multiple first fins 25 and second fins 26, which are staggered around the connecting ring 23.

[0044] Specifically, the staggered first fins 25 and the second fins 26 are in contact with the coolant, so that the coolant flows up and down through the water port 22, thereby improving the heat absorption effect of the coolant.

[0045] Please refer to Figure 6 As a further implementation of the inner sleeve 3 mechanism: a raised block 27 is provided on the inner side of the inner sleeve 3, and a plurality of raised blocks 27 are provided, which are evenly arranged on the inner sleeve at equal intervals.

[0046] Specifically, the protruding blocks 27 disrupt the flow field formed by the eddy current of the external medium at the inner sleeve, thereby alleviating the impact force of the medium on the inner sleeve.

[0047] In summary, when the overall device is in use or running:

[0048] When the device is used, the sleeve body 1 is installed on the magnetic pump, and the outer sleeve 2 and the inner sleeve are fitted together through the first mounting ring 13 and the second mounting ring 14, and the first mounting ring 13 and the second mounting ring 14 have sealing ability to ensure the stable cooperation between the outer sleeve 2 and the inner sleeve, and the fixing ring 15 is installed, and the angle of the fixing ring 15 is adjusted to make the positioning groove 19 correspond to the positioning block 18. As the fixing ring 15 is installed, the positioning block 18 is inserted into the positioning groove 19, and the positioning groove 19 is limited by the positioning block 18, so that the fixing ring 15 is stably matched with the first mounting ring 13, so that the pump can be put into operation. The water pipe 8 and the water outlet pipe 9 are aligned with the through holes 20 at both ends of the fixing ring 15, so that the water inlet pipe 8 and the water outlet pipe 9 enter the through hole 20, and the water inlet pipe 8 and the water outlet pipe 9 will cooperate with the through hole 20 to limit the fixing ring 15, limit the rotation of the fixing ring 15, and ensure the stable installation of the fixing ring 15. The fixing ring 15 cooperates with the first mounting ring 13 and the second mounting ring 14 through the fitting groove 16. After the fixing ring 15 is tightened and fixed by the fixing bolt structure, the fixing ring 15 will press the first mounting ring 13, so that the first mounting ring 13 and the second mounting ring 14 are stably matched, so that the pump body remains stable.

[0049] When the magnetic pump is working, the water inlet pipe 8 is connected to the external coolant supply device, and the water outlet pipe 9 is connected to the external coolant recovery device. The coolant is stably provided to the equipment through the supply device. The coolant stably flows into the heat dissipation cavity 10 along the water inlet pipe 8 and then flows out from the water outlet pipe 9. During this period, the coolant will contact the heat dissipation column 12, absorb the heat from the heat dissipation column 12 through the contact ring 11 to conduct the heat on the surface of the isolation sleeve. After the coolant absorbs the heat, it takes the heat out and cools the isolation sleeve. In addition, the heat dissipation cavity 10 is divided into two parts by the partition plate 21, so that the coolant entering the heat dissipation cavity 10 can only pass The water outlet 22 flows into the other half, so that the coolant can flow fully inside the heat sink to improve the heat dissipation efficiency. When the cooling water flows through the water outlet 22, it will contact the heat dissipation fins 24, and contact the coolant through the staggered first fins 25 and the second fins 26, so that the coolant flows up and down through the water outlet 22, thereby improving the heat absorption effect of the coolant, absorbing the heat on the heat dissipation fins 24, further improving the heat dissipation and cooling effect, and avoiding the isolation sleeve from being demagnetized by heat. In addition, the coolant is provided in a stable state to maintain the stability of the flow, so that the pressure in the heat dissipation cavity 10 remains stable, which is convenient for cooperation with the pressure detection gauge 7.

[0050] During the operation of the magnetic pump, the fixing ring 15 presses the sleeve 1 through the buffer pad 17 to reduce the impact of vibration on the sleeve 1 and ensure the stable installation of the sleeve 1. The outer sleeve 2 and the inner sleeve 3 cooperate to form the sleeve 1. With the cooperation of the first reinforcing plate 4 and the second reinforcing plate 5, structural strength support is provided, thereby improving the structural strength of the sleeve 1. When the sleeve 1 is impacted, the wave-like reinforcement structure composed of the first reinforcing plate 4 and the second reinforcing plate 5 will support the contact end of the sleeve 1 and disperse the impact force to all the first reinforcing plates 4 and the second reinforcing plates 5, so that the sleeve 1 resists the impact as a whole and improves the impact resistance of the sleeve 1. In addition, the protruding block 27 disrupts the flow field formed by the external medium at the inner sleeve due to the eddy current, slowing down the impact force of the medium on the inner sleeve, and when the outer sleeve 2 or the inner sleeve 3 is damaged, the medium passed into the interior will be lost, and the pressure will change. The pressure detection gauge 7 detects the pressure change through the detection hole 6, which is convenient for workers to judge the equipment status in time and replace the isolation sleeve.

[0051] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A magnetic pump isolation sleeve, comprising a sleeve body (1), characterized in that: The sleeve body (1) comprises an outer sleeve (2) and an inner sleeve (3), a first reinforcing plate (4) and a second reinforcing plate (5) are arranged between the outer sleeve (2) and the inner sleeve (3), the first reinforcing plate (4) and the second reinforcing plate (5) are arranged in a tilted manner in multiple groups, and the tilting directions are opposite, the two ends of adjacent first reinforcing plates (4) and second reinforcing plates are connected to each other, and are also connected to the inner wall of the outer sleeve (2) and the outer wall of the inner sleeve (3), a detection hole (6) is opened at one end of the outer sleeve (2), and a pressure detection gauge (7) is arranged in the detection hole (6); The inner sleeve (3) is provided with a water inlet pipe (8) at one end and a water outlet pipe (9) at the other end; a heat dissipation cavity (10) is provided between the outer sleeve (2) and the inner sleeve (3); the first reinforcing plate (4) and the second reinforcing plate (5) are both arranged in the heat dissipation cavity (10); a contact ring (11) is provided on the inner wall of the heat dissipation cavity (10); a plurality of groups of the contact rings (11) are provided and are evenly distributed on the inner wall of the heat dissipation cavity (10); and heat dissipation columns (12) are provided between the contact rings (11) in the same group.

2. The magnetic pump isolation sleeve according to claim 1 is characterized in that: A first mounting ring (13) is provided at the bottom of the outer sleeve (2), a second mounting ring (14) is provided at the bottom of the inner sleeve (3), a fixing ring (15) is provided on the first mounting ring (13), a fitting groove (16) is provided on the inner side of the fixing ring (15), a buffer pad (17) is provided on the inner side of the fitting groove (16), and the fitting groove (16) cooperates with the first mounting ring and the second mounting ring (14) through the buffer pad (17).

3. A magnetic pump isolation sleeve according to claim 2, characterized in that: A positioning block (18) is provided at the upper end of the first mounting ring (13), and a positioning groove (19) is provided on the fixing ring (15), wherein the positioning groove (19) cooperates with the positioning block (18).

4. A magnetic pump isolation sleeve according to claim 2, characterized in that: The water inlet pipe (8) and the water outlet pipe (9) both pass through the second mounting ring (14), and a through hole (20) is provided on the fixing ring (15), and the through hole (20) cooperates with the water inlet pipe (8) and the water outlet pipe (9).

5. The magnetic pump isolation sleeve according to claim 1 is characterized in that: A partition plate (21) is provided in the heat dissipation cavity (10), and a water outlet (22) is provided at the upper end of the partition plate (21).

6. The magnetic pump isolation sleeve according to claim 1 is characterized in that: The heat dissipation cavity (10) is provided with a connecting ring (23) at the water outlet (22), and the connecting ring (23) is provided with heat dissipation fins (24).

7. A magnetic pump isolation sleeve according to claim 6, characterized in that: The heat dissipation fins (24) comprise a first fin (25) and a second fin (26); the first fin (25) is arranged at the top, and the second fin (26) is arranged at the bottom; and a plurality of the first fins (25) and the second fins (26) are provided and are staggered around the connection ring (23).

8. The magnetic pump isolation sleeve according to claim 1 is characterized in that: The inner side of the inner sleeve (3) is provided with a raised block (27), and a plurality of raised blocks (27) are provided and are evenly arranged at equal intervals on the inner sleeve.

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