阅读说明：本技术 一种工业输送用磁力泵 (Magnetic pump for industrial conveying ) 是由 曾庆哲 于 2019-11-30 设计创作，主要内容包括：本发明属于磁力泵技术领域,具体的说是一种工业输送用磁力泵,包括磁力泵本体,所述磁力泵本体包括泵体、叶轮、内磁钢总成、外磁钢总成和电机,所述泵体包括进料管和出料管,所述进料管内壁固定有过滤网,所述进料管侧壁上设有连接管,所述连接管的一端与过滤网固定连接,所述连接管远离过滤网的一端与出料管连通,所述连接管的中部设有水泵；本发明通过过滤网的设置来对进入磁力泵的介质进行过滤,并将过滤拦截下来的固体颗粒直接通过连接管输送到磁力泵外,避免固体颗粒进入到磁力泵内部导致的磁力泵损坏情况发生,使得磁力泵的使用寿命得以提高。(The invention belongs to the technical field of magnetic pumps, and particularly relates to a magnetic pump for industrial conveying, which comprises a magnetic pump body, wherein the magnetic pump body comprises a pump body, an impeller, an inner magnetic steel assembly, an outer magnetic steel assembly and a motor, the pump body comprises a feeding pipe and a discharging pipe, a filter screen is fixed on the inner wall of the feeding pipe, a connecting pipe is arranged on the side wall of the feeding pipe, one end of the connecting pipe is fixedly connected with the filter screen, one end of the connecting pipe, far away from the filter screen, is communicated with the discharging pipe, and a water pump is arranged in the; according to the invention, the filter screen is arranged to filter the medium entering the magnetic pump, and the solid particles intercepted by filtering are directly conveyed out of the magnetic pump through the connecting pipe, so that the magnetic pump is prevented from being damaged due to the solid particles entering the magnetic pump, and the service life of the magnetic pump is prolonged.)

1. The utility model provides an industrial magnetic drive pump of using of carrying, includes the magnetic drive pump body, the magnetic drive pump body includes the pump body, impeller, interior magnetic steel assembly, outer magnetic steel assembly and motor, the pump body includes inlet pipe (1) and discharging pipe (2), its characterized in that: inlet pipe (1) inner wall is fixed with filter screen (3), be equipped with connecting pipe (4) on inlet pipe (1) lateral wall, the one end and filter screen (3) fixed connection of connecting pipe (4), the one end and discharging pipe (2) intercommunication of filter screen (3) are kept away from in connecting pipe (4), the middle part of connecting pipe (4) is equipped with water pump (41).

2. The magnetic pump for industrial transportation according to claim 1, wherein: inlet pipe (1) inner wall is fixed with installation piece (5), installation piece (5) rotate towards one side of filter screen (3) and install pivot (6), pivot (6) fixed surface has flabellum (7) and rectangular block (8), the symmetry is fixed with connecting rod (9) on the lateral wall of rectangular block (8), the one end that rectangular block (8) were kept away from in connecting rod (9) is fixed with the brush and is (10), the brush is clearance fit to the inside wall of (10) and filter screen (3).

3. The magnetic pump for industrial transportation according to claim 2, wherein: filter screen (3) adopt funnel-shaped structure, filter screen (3) adopt 304L stainless steel to make, the mesh number of filter screen (3) is 500 ~ 600 meshes, the contained angle is 20 ~ 30 between the inner wall of filter screen (3) and the inner wall of inlet pipe (1).

4. The magnetic pump for industrial transportation according to claim 2, wherein: and steel wire ropes (11) are fixed at two ends of the mounting block (5), iron blocks (12) are fixed at free ends of the steel wire ropes (11), and the steel wire ropes (11) and the iron blocks (12) are subjected to electroplating treatment.

5. The magnetic pump for industrial transportation according to claim 3, wherein: more than two fiber belts (13) are fixed on the inner wall of the filter screen (3) at equal intervals along the circumferential direction of the filter screen, and the fiber belts (13) are made of pure cotton materials.

6. The magnetic pump for industrial transportation according to claim 1, wherein: one end of the connecting pipe (4) facing the filter screen (3) is provided with an arc-shaped groove (14), the inner side of the arc-shaped groove (14) is provided with an elastic plate (15), and the elastic plate (15) is made of MH6 alloy material.

Technical Field

The invention belongs to the technical field of magnetic pumps, and particularly relates to a magnetic pump for industrial conveying.

Background

The magnetic pump is a branch belonging to the field of water pump, and is a new product which applies the working principle of permanent magnet coupling to centrifugal pump. The magnetic pump consists of three parts, namely a pump, a magnetic driver and a motor. The magnetic driver of the magnetic pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic conductive isolation sleeve, when the motor drives the outer magnetic rotor to rotate, a magnetic field can penetrate through an air gap and a non-magnetic substance to drive the inner magnetic rotor connected with an impeller to synchronously rotate, the non-contact synchronous transmission of power is realized, and a dynamic sealing structure which is easy to leak is converted into a static sealing structure with zero leakage.

Because the sliding bearing of the magnetic pump is lubricated by the conveyed medium, different materials are selected to manufacture the bearing according to different media and use working conditions. The magnetic pump can not convey the medium with solid particles due to the characteristics of the magnetic pump, and a large amount of strong alkaline medium needs to be conveyed when the industrial alkali is prepared, and the solid particles are mixed in the medium; the invention provides a magnetic pump for industrial conveying, which is characterized in that a medium entering the magnetic pump is filtered, when the external filtering effect is poor or the filtering is insufficient, solid particles are easy to enter the magnetic pump, and the damage of the magnetic pump is caused.

Disclosure of Invention

In order to make up for the defects of the prior art, the magnetic pump for industrial conveying provided by the invention has the advantages that solid particles in a conveying medium are directly conveyed to the outlet end after being intercepted by the filter screen, so that the solid particles do not enter the magnetic pump, the damage of the solid particles to the magnetic pump is avoided, and the service life of the magnetic pump is ensured.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a magnetic pump for industrial conveying, which comprises a magnetic pump body, wherein the magnetic pump body comprises a pump body, an impeller, an inner magnetic steel assembly, an outer magnetic steel assembly and a motor, the pump body comprises a feeding pipe and a discharging pipe, a filter screen is fixed on the inner wall of the feeding pipe, a connecting pipe is arranged on the side wall of the feeding pipe, one end of the connecting pipe is fixedly connected with the filter screen, one end, far away from the filter screen, of the connecting pipe is communicated with the discharging pipe, and a water pump is arranged in the middle of the connecting pipe; the medium entering the magnetic pump is usually filtered, when the external filtering effect is poor or the filtering is insufficient, solid particles are easy to enter the magnetic pump, and the magnetic pump is damaged; through the arrangement of the filter screen, the medium is filtered after entering the pump body, and the filter screen intercepts solid particles in the medium; part of the medium directly enters the discharge pipe through the connecting pipe, and the rest of the medium enters the pump body after passing through the filter screen; the water pump works to drive the medium in the connecting pipe to move towards the discharging pipe, and simultaneously drives the solid particles to enter the discharging pipe through the connecting pipe; the water pump is a micro water pump, so that the volume of the water pump is matched with that of the magnetic pump body; under the drive of the motor, the outer magnetic steel assembly and the inner magnetic steel assembly drive the impeller to rotate under the interaction of the outer magnetic steel assembly and the inner magnetic steel assembly (the basic principle of the magnetic pump is not described in detail), so that the medium is discharged from the discharge pipe, and the medium is conveyed; when the medium passes through the connecting pipe, the flow velocity of the medium is high, so that a vortex is formed, the medium in the feeding pipe is driven to rotate, and the solid particles intercepted on the filter screen are stirred by the medium; the solid particles enter the connecting pipe along with the medium under the stirring action of the medium, so that the solid particles are directly conveyed to the outlet of the magnetic pump, the solid particles are prevented from entering the magnetic pump body, the damage of the magnetic pump caused by the solid particles is avoided, the service life of the magnetic pump is prolonged, and the application range of the magnetic pump is enlarged.

Preferably, the inner wall of the feeding pipe is fixedly provided with an installation block, one side of the installation block, which faces the filter screen, is rotatably provided with a rotating shaft, the surface of the rotating shaft is fixedly provided with fan blades and a rectangular block, the side wall of the rectangular block is symmetrically and fixedly provided with connecting rods, one end of each connecting rod, which is far away from the rectangular block, is fixedly provided with a brush handle, and the brush handle is in clearance fit with the inner side wall of the filter screen; through the arranged fan blades, in the process of conveying the medium, the flowing medium drives the fan blades to rotate, so that the fan blades drive the rotating shaft to rotate; the rotating shaft drives the rectangular block and the connecting rod fixed on the rectangular block to rotate, so that the brush handle fixed on the connecting rod is driven to rotate; the rotating brush stirs solid particles remained on the filter screen, so that the solid particles are separated from the filter screen and enter the connecting pipe along with the flowing of the medium; the brush handle is made of polytetrafluoroethylene materials, so that the strong alkali resistance is realized, and the service life of the brush handle is ensured; meanwhile, the brush handle is flexible, so that the damage of the filter screen caused by stirring the solid particles is avoided, and the normal service life of the filter screen is ensured; the rotation of the fan blades stirs the medium, so that the medium rotates, and the medium rotates; the stirring effect of the rotating medium on the solid particles is stronger, so that the solid particles are discharged out of the magnetic pump along with the medium.

Preferably, the filter screen is of a funnel-shaped structure, the filter screen is made of 304L stainless steel, the mesh number of the filter screen is 500-600 meshes, an included angle between the inner wall of the filter screen and the inner wall of the feeding pipe is 20-30 degrees, and when the device works, solid particles are intercepted by the filter screen and then enter the connecting pipe under the drive of a medium; the filter screen is arranged into a funnel-shaped structure, so that when solid particles impact the filter screen, the filter screen has a rebound effect on the solid particles, the solid particles are rebounded to the central part of the filter screen, and then directly enter the connecting pipe to be discharged, and the trafficability of the solid particles is improved; meanwhile, the impact of the solid particles and the filter screen is reduced due to the smaller included angle, and the direct impact of the solid particles and the filter screen is avoided, so that the loss of the filter screen is reduced, and the service life of the filter screen is ensured; the filter screen is made of 304L stainless steel, so that the filter screen has good strong alkali resistance, and the filter screen is prevented from being damaged due to the corrosion of strong alkali; the mesh number of filter screen is 500 ~ 600 meshes, has guaranteed that the particle size of the solid particle through the filter screen belongs to the acceptable scope of magnetic drive pump, avoids leading to the magnetic drive pump to damage because of the solid of great granule passes through.

Preferably, the two ends of the mounting block are both fixed with steel wire ropes, the free ends of the steel wire ropes are fixed with iron blocks, the steel wire ropes and the iron blocks are subjected to electroplating treatment, when the fan blades rotate, the brush handle is driven to rotate, and when the brush handle passes through the iron blocks, the iron blocks are struck, so that the iron blocks are bounced, and the flowing directions of the steel wire ropes and the medium are inconsistent; after the brush handle rotates through the iron block, the flowing direction of the medium is different from the length direction of the steel wire rope, so that the steel wire rope rotates, and the iron block returns; the iron block returning to the initial position collides with the filter screen, so that the filter screen vibrates, solid particles blocked on the filter screen are vibrated down, the blocking condition of the filter screen is reduced, and the normal use of the filter screen is ensured.

Preferably, more than two fiber belts are fixed on the inner wall of the filter screen at equal intervals along the circumferential direction of the inner wall, the fiber belts are made of pure cotton materials, when the filter screen works, the fiber belts are tightly attached to the inner side wall of the filter screen under the driving of a medium, and the length direction of the fiber belts is consistent with the flowing direction of the medium; when the brush handle passes through the fiber belt, the fiber belt is driven to rotate, so that the fiber belt deflects; when the brush handle rotates over the fiber belt, the fiber belt returns to the initial position under the drive of the medium, and in the process that the fiber belt returns to the initial position, the fiber belt slides on the inner side wall of the filter screen to scrape the inner side wall of the filter screen, so that the residual solid particles on the inner side wall are scraped, the blockage of the filter screen is avoided, and the using effect of the filter screen is ensured; the fiber belt is made of pure cotton materials, so that the fiber belt has good alkali resistance, and the normal use of the fiber belt is ensured.

Preferably, an arc-shaped groove is formed in one end, facing the filter screen, of the connecting pipe, an elastic plate is arranged on the inner side of the arc-shaped groove and made of MH6 alloy materials, and when the connecting pipe works, solid particles can impact the inner wall of the connecting pipe when entering the connecting pipe, so that the connecting pipe is easily abraded; through the arrangement of the elastic plate, the solid particles directly impact the elastic plate after entering the connecting pipe, and are rebounded out under the action of the elasticity of the elastic plate so as to enter the connecting pipe; due to the arrangement of the elastic plate, the collision between solid particles and the connecting pipe is reduced, and the service life of the connecting pipe is prolonged; the elastic plate is made of MH6 alloy material, so that the strong alkali resistance and the wear resistance of the elastic plate are ensured, and the elastic plate has a longer service life.

The invention has the following beneficial effects:

1. according to the magnetic pump for industrial conveying, the medium entering the magnetic pump is filtered through the filter screen, and the solid particles intercepted by filtering are directly conveyed out of the magnetic pump through the connecting pipe, so that the magnetic pump is prevented from being damaged due to the fact that the solid particles enter the magnetic pump, and the service life of the magnetic pump is prolonged.

2. According to the magnetic pump for industrial conveying, the filter screen is arranged to intercept the medium entering the magnetic pump, so that the magnetic pump can convey the medium with solid particles, and the application range of the magnetic pump is widened.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a three-dimensional view of the present invention;

FIG. 2 is a front partial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

in the figure: the device comprises a feeding pipe 1, a discharging pipe 2, a filter screen 3, a connecting pipe 4, a mounting block 5, a rotating shaft 6, fan blades 7, a rectangular block 8, a connecting rod 9, a brush handle 10, a steel wire rope 11, an iron block 12, a fiber belt 13, an arc-shaped groove 14, an elastic plate 15 and a water pump 41.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, the magnetic pump for industrial transportation according to the present invention includes a magnetic pump body, the magnetic pump body includes a pump body, an impeller, an inner magnetic steel assembly, an outer magnetic steel assembly and a motor, the pump body includes a feeding pipe 1 and a discharging pipe 2, a filter screen 3 is fixed on an inner wall of the feeding pipe 1, a connecting pipe 4 is disposed on a side wall of the feeding pipe 1, one end of the connecting pipe 4 is fixedly connected with the filter screen 3, one end of the connecting pipe 4 away from the filter screen 3 is communicated with the discharging pipe 2, and a water pump 41 is disposed in a middle portion of the connecting pipe 4, when the magnetic pump works, since a sliding bearing of the magnetic pump is lubricated by a transported medium, the magnetic pump cannot transport a medium with solid particles, and when industrial alkali is produced, a large amount of strong alkaline medium needs to be transported; the medium entering the magnetic pump is usually filtered, when the external filtering effect is poor or the filtering is insufficient, solid particles are easy to enter the magnetic pump, and the magnetic pump is damaged; through the arrangement of the filter screen 3, the medium is filtered after entering the pump body, and the filter screen 3 intercepts solid particles in the medium; part of the medium directly enters the discharge pipe 2 through the connecting pipe 4, and the rest of the medium enters the pump body after passing through the filter screen 3; the water pump 41 works to drive the medium in the connecting pipe 4 to move towards the discharging pipe 2, and simultaneously drives the solid particles to enter the discharging pipe 2 through the connecting pipe 4; the water pump 41 is a micro water pump, so that the volume of the water pump 41 is matched with that of the magnetic pump body; under the drive of the motor, the outer magnetic steel assembly and the inner magnetic steel assembly drive the impeller to rotate under the interaction of the outer magnetic steel assembly and the inner magnetic steel assembly (the basic principle of the magnetic pump is not described in detail), so that the medium is discharged from the discharge pipe 2, and the medium is conveyed; when the medium passes through the connecting pipe 4, the flow velocity of the medium is high, so that a vortex is formed, the medium in the feeding pipe 1 is driven to rotate, and the medium stirs the solid particles intercepted on the filter screen 3; the solid particle enters into the connecting pipe 4 along with the medium under the stirring effect of the medium to make the solid particle directly carried to the export department of magnetic pump, avoided the solid particle to enter into inside the magnetic pump body, thereby avoided the magnetic pump because of getting into the damage that the solid particle leads to, improved the life of magnetic pump, enlarged the application range of magnetic pump simultaneously.

As a specific embodiment of the invention, an installation block 5 is fixed on the inner wall of the feeding pipe 1, a rotating shaft 6 is rotatably installed on one side of the installation block 5 facing to the filter screen 3, a fan blade 7 and a rectangular block 8 are fixed on the surface of the rotating shaft 6, a connecting rod 9 is symmetrically fixed on the side wall of the rectangular block 8, a brush handle 10 is fixed at one end of the connecting rod 9 far away from the rectangular block 8, the brush handle 10 is in clearance fit with the inner side wall of the filter screen 3, when the filter screen 3 works, the filter screen 3 is blocked when the filter screen works, so that the interception effect of the filter screen 3 is poor, the use of the filter screen 3 is influenced, and the conveying efficiency of the magnetic; through the arranged fan blades 7, in the process of conveying the medium, the flowing medium drives the fan blades 7 to rotate, so that the fan blades 7 drive the rotating shaft 6 to rotate; the rotating shaft 6 drives the rectangular block 8 and the connecting rod 9 fixed on the rectangular block 8 to rotate, so that the brush handle 10 fixed on the connecting rod 9 is driven to rotate; the rotating brush handle 10 stirs the solid particles left on the filter screen 3, so that the solid particles are separated from the filter screen 3 and enter the connecting pipe 4 along with the flowing of the medium; the brush handle 10 is made of polytetrafluoroethylene materials, so that the strong alkali resistance is realized, and the service life of the brush handle 10 is ensured; meanwhile, the brush handle 10 is flexible, so that the damage of the filter screen 3 caused by stirring the solid particles is avoided, and the normal service life of the filter screen 3 is ensured; the rotation of the fan blades 7 stirs the medium, so that the medium rotates, and the medium rotates; the stirring effect of the rotating medium on the solid particles is stronger, so that the solid particles are discharged out of the magnetic pump along with the medium.

As a specific embodiment of the invention, the filter screen 3 adopts a funnel-shaped structure, the filter screen 3 is made of 304L stainless steel, the mesh number of the filter screen 3 is 500-600 meshes, an included angle between the inner wall of the filter screen 3 and the inner wall of the feed pipe 1 is 20-30 degrees, and when the device works, solid particles are intercepted by the filter screen 3 and then enter the connecting pipe 4 under the drive of a medium; the filter screen 3 is arranged in a funnel-shaped structure, so that when solid particles impact the filter screen 3, the filter screen 3 has a rebound effect on the solid particles, the solid particles are rebounded to the central part of the filter screen 3, and then directly enter the connecting pipe 4 to be discharged, and the trafficability of the solid particles is improved; meanwhile, the impact of the solid particles and the filter screen 3 is reduced due to the smaller included angle, and the direct impact of the solid particles and the filter screen 3 is avoided, so that the loss of the filter screen 3 is reduced, and the service life of the filter screen 3 is ensured; the filter screen 3 is made of 304L stainless steel, so that the filter screen 3 has good strong alkali resistance, and the filter screen 3 is prevented from being damaged due to the corrosion of strong alkali; the mesh number of filter screen 3 is 500 ~ 600 meshes, has guaranteed that the particle size of the solid particle that passes through filter screen 3 belongs to the acceptable scope of magnetic drive pump, avoids leading to the magnetic drive pump to damage because of the solid of great granule passes through.

As a specific embodiment of the present invention, the two ends of the mounting block 5 are both fixed with a steel wire rope 11, the free end of the steel wire rope 11 is fixed with an iron block 12, the steel wire rope 11 and the iron block 12 are subjected to electroplating treatment, during operation, the brush handle 10 is driven to rotate when the fan blade 7 rotates, and when the brush handle 10 passes through the iron block 12, the iron block 12 is hit, so that the iron block 12 is bounced, and the steel wire rope 11 is not consistent with the medium flowing direction; after the brush handle 10 rotates through the iron block 12, the flowing direction of the medium is different from the length direction of the steel wire rope 11, so that the steel wire rope 11 rotates, and the iron block 12 returns; the iron block 12 returning to the initial position collides with the filter screen 3, so that the filter screen 3 vibrates, solid particles blocked on the filter screen 3 vibrate down, the blocking condition of the filter screen 3 is reduced, and the normal use of the filter screen 3 is ensured.

As a specific embodiment of the present invention, two or more fiber belts 13 are fixed on the inner wall of the filter screen 3 at equal intervals along the circumferential direction thereof, the fiber belts 13 are made of pure cotton material, when in use, the fiber belts 13 are tightly attached to the inner side wall of the filter screen 3 under the driving of the medium, and the length direction of the fiber belts 13 is consistent with the flowing direction of the medium; when the brush handle 10 passes through the fiber belt 13, the fiber belt 13 is driven to rotate, so that the fiber belt 13 deflects; when the brush handle 10 rotates over the fiber belt 13, the fiber belt 13 returns to the initial position under the drive of the medium, and in the process that the fiber belt 13 returns to the initial position, the fiber belt 13 slides on the inner side wall of the filter screen 3 to scrape the inner side wall of the filter screen 3, so that the residual solid particles on the inner side wall are scraped, the blockage of the filter screen 3 is avoided, and the use effect of the filter screen 3 is ensured; the fiber belt 13 is made of pure cotton materials, so that the fiber belt 13 has good alkali resistance, and the normal use of the fiber belt 13 is ensured.

As a specific embodiment of the present invention, an arc-shaped groove 14 is formed at one end of the connecting pipe 4 facing the filter screen 3, an elastic plate 15 is arranged inside the arc-shaped groove 14, the elastic plate 15 is made of MH6 alloy material, when the connecting pipe works, solid particles can collide with the inner wall of the connecting pipe 4 when entering the connecting pipe 4, and the connecting pipe 4 is easily worn; through the arrangement of the elastic plate 15, the solid particles directly impact the elastic plate 15 after entering the connecting pipe 4, and are rebounded out under the action of the elasticity of the elastic plate 15, so as to enter the connecting pipe 4; the arrangement of the elastic plate 15 reduces the collision between solid particles and the connecting pipe 4, and prolongs the service life of the connecting pipe 4; the elastic plate 15 is made of MH6 alloy material, so that the strong alkali resistance of the elastic plate 15 is ensured, the wear resistance of the elastic plate 15 is also ensured, and the elastic plate 15 has a longer service life.

When the magnetic pump works, the sliding bearing of the magnetic pump is lubricated by the conveyed medium, so that the magnetic pump cannot convey the medium with solid particles, and a large amount of strong alkaline medium needs to be conveyed when industrial alkali is prepared, and the solid particles are mixed in the medium; the medium entering the magnetic pump is usually filtered, when the external filtering effect is poor or the filtering is insufficient, solid particles are easy to enter the magnetic pump, and the magnetic pump is damaged; through the arrangement of the filter screen 3, the medium is filtered after entering the pump body, and the filter screen 3 intercepts solid particles in the medium; part of the medium directly enters the discharge pipe 2 through the connecting pipe 4, and the rest of the medium enters the pump body after passing through the filter screen 3; the water pump 41 works to drive the medium in the connecting pipe 4 to move towards the discharging pipe 2, and simultaneously drives the solid particles to enter the discharging pipe 2 through the connecting pipe 4; the water pump 41 is a micro water pump, so that the volume of the water pump 41 is matched with that of the magnetic pump body; under the drive of the motor, the outer magnetic steel assembly and the inner magnetic steel assembly drive the impeller to rotate under the interaction of the outer magnetic steel assembly and the inner magnetic steel assembly (the basic principle of the magnetic pump is not described in detail), so that the medium is discharged from the discharge pipe 2, and the medium is conveyed; when the medium passes through the connecting pipe 4, the flow velocity of the medium is high, so that a vortex is formed, the medium in the feeding pipe 1 is driven to rotate, and the medium stirs the solid particles intercepted on the filter screen 3; the solid particle enters into the connecting pipe 4 along with the medium under the stirring effect of the medium to make the solid particle directly carried to the export department of magnetic pump, avoided the solid particle to enter into inside the magnetic pump body, thereby avoided the magnetic pump because of getting into the damage that the solid particle leads to, improved the life of magnetic pump, enlarged the application range of magnetic pump simultaneously.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.