CN111894862A

CN111894862A - Novel magnetic coupling for magnetic pump

Info

Publication number: CN111894862A
Application number: CN202010523551.1A
Authority: CN
Inventors: 吴辉; 徐俊东; 唐宗清; 王文汇; 王清龙; 孟金华; 吴翔; 吴杰
Original assignee: Anhui Yinlong Pump Valve Co ltd
Current assignee: Anhui Yinlong Pump Valve Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-11-06

Abstract

The invention provides a novel magnetic coupling for a magnetic pump, which comprises an inner rotor, an isolation sleeve and an outer rotor, wherein an inner magnet is fixedly sleeved on the outer circumference of the inner rotor, an outer magnet is fixedly sleeved on the inner circumference of the outer rotor, the heat exchanger is also provided with a heat exchanger, the heat exchanger is in a ring shape and is fixedly sleeved outside the outer magnet, a first gap is arranged between the heat exchanger and the outer magnet, the isolation sleeve is sleeved outside the inner rotor and is positioned between the inner magnet and the outer magnet, a second gap is arranged between the inner rotor and the outer rotor, a diversion ring is further arranged in the second gap, one end of the diversion ring is fixed on a shell of the heat exchanger, and the other end of the diversion ring extends into the second gap, the invention can effectively solve the technical problems that the eddy heat in the isolation sleeve can be increased sharply, the temperature rises sharply, the magnetic steel is demagnetized, and the, and collecting water drops in the second gap on a drainage sheet through a drainage ring, and leading out.

Description

Novel magnetic coupling for magnetic pump

Technical Field

The invention relates to the technical field of magnetic pumps, in particular to a novel magnetic coupling for a magnetic pump.

Background

The magnetic pump is by the pump, magnetic coupling and motor triplex, the pump includes the casing, the impeller, pump cover and pump shaft, magnetic coupling is by outer magnet rotor part, interior magnet rotor part and spacer sleeve are constituteed, the motor links together with outer magnet rotor part and constitutes the drive disk assembly, the driven disk assembly is constituteed together to impeller and interior magnet rotor part antithetical couplet, sealed spacer sleeve has between interior female rotor part and the outer magnet rotor part, the motor rotates the push-and-pull resultant force drive interior magnet rotor that produces through the magnetic pole of outer magnet rotor part and the magnetic pole coupling of interior magnet rotor part and repulsion force are constituteed.

When the magnetic force pump delivers the liquid of easy gasification when using, the bearing, interior magnetic rotor and spacer all can produce the heat in service, this will make operating temperature rise, the power that makes the transmission on the one hand descends, on the other hand can produce very big trouble to the pump of delivering easy vaporization liquid, the condition that magnetic force coupling slippage (desynchronizing) appears will appear this moment, the vortex heat in the spacer can sharply increase promptly, the temperature sharply rises, if untimely processing, can arouse the magnet steel demagnetization, make magnetic force coupling inefficacy, lead to the magnetic force pump can not normal use.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a novel magnetic coupling for a magnetic pump, which is characterized in that a heat exchanger is added when an easily vaporized medium is conveyed, so that heat is prevented from returning to a suction inlet, and the magnetic coupling is ensured not to exceed the working limit temperature.

The technical scheme is as follows: in order to achieve the purpose, the invention provides a novel magnetic coupling for a magnetic pump, which comprises an inner rotor, an isolation sleeve and an outer rotor, wherein an inner magnet is fixedly sleeved on the outer circumference of the inner rotor, and an outer magnet is fixedly sleeved on the inner circumference of the outer rotor, and the novel magnetic coupling is characterized in that: the heat exchanger is annular and fixedly sleeved outside the outer magnet, a first gap is formed between the heat exchanger and the outer magnet, the isolation sleeve is sleeved outside the inner rotor and between the inner magnet and the outer magnet, a second gap is formed between the inner rotor and the outer rotor, a flow guide ring is further arranged in the second gap, one end of the flow guide ring is fixed on the shell of the heat exchanger, and the other end of the flow guide ring extends into the second gap.

As an improvement of the scheme, the drainage piece comprises a circular fixing part and a drainage piece connected to the fixing part, the fixing part is fixedly mounted on the shell of the heat exchanger, and the drainage piece extends into the second gap.

As an improvement of the scheme, the drainage piece is in a round table shape with a large bottom and a small opening, the bottom surface of the drainage piece is positioned in the second gap, a gap is reserved between the bottom surface of the drainage piece and the inner rotor and between the bottom surface of the drainage piece and the outer rotor, and one end opposite to the bottom surface of the drainage piece is fixedly connected to the fixing part.

As an improvement of the scheme, the drainage sheet is made of hard plastics.

As an improvement of the scheme, the rotor comprises a driving shaft and a driven shaft, wherein the inner rotor is fixedly sleeved on the driven shaft, and the outer rotor is fixedly sleeved on the driving shaft.

As an improvement of the scheme, an inner magnet mounting groove arranged along the axial direction is arranged on the outer circumference of the inner rotor, and an outer magnet mounting groove arranged along the axial direction is arranged on the inner circumference of the outer rotor.

Compared with the prior art, the invention has the following beneficial effects: the heat exchanger is arranged to cool the eddy heat generated by the rotation of the inner rotor in the isolation sleeve, and water drops are generated between the inner rotor and the outer rotor due to the collision between cold air released by the heat exchanger and the eddy heat in the isolation sleeve, and the water drops in the second gap are collected on the drainage sheet and led out by the drainage ring, so that the problem that the rotation of the inner rotor and the outer rotor is influenced due to the fact that the water drops are thrown in the second gap in a random manner can be effectively solved.

Drawings

FIG. 1 is a schematic view of a horizontal cross-sectional structure of the present invention;

FIG. 2 is a schematic view of a vertical cross-sectional structure of the present invention;

fig. 3 is a front view of the structure of the drainage ring.

List of reference numerals: 1. an isolation sleeve; 2. an inner rotor; 3. an outer rotor; 4. an inner magnet; 5. an outer magnet; 6. a driven shaft; 7. a drive shaft; 8. a heat exchanger; 9. a first gap; 10. a second gap; 11. a drainage ring; 111. a fixed part; 112. a drainage sheet.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The magnetic coupling for the novel magnetic pump as shown in fig. 1-3 comprises an inner rotor 2, an isolation sleeve 1 and an outer rotor 3, wherein an inner magnet 4 is fixedly sleeved on the outer circumference of the inner rotor 2, an outer magnet 5 is fixedly sleeved on the inner circumference of the outer rotor 3, the magnetic coupling further comprises a heat exchanger 8, the heat exchanger 8 is in a circular ring shape and is fixedly sleeved outside the outer magnet 5, a first gap 9 is arranged between the heat exchanger 8 and the outer magnet 5, the isolation sleeve 1 is sleeved outside the inner rotor 2 and is positioned between the inner magnet 4 and the outer magnet 5, a second gap 10 is arranged between the inner rotor 2 and the outer rotor 3, a diversion ring 11 is further arranged in the second gap 10, one end of the diversion ring 11 is fixed on the shell of the heat exchanger 8, and the other end of the diversion ring extends into the second gap 10.

In the above structure: the invention provides a novel magnetic coupling for a magnetic pump, wherein an inner magnet 4 is fixedly sleeved on the outer circumference of an inner rotor 2, an outer magnet 5 is fixedly sleeved on the inner circumference of an outer rotor 3, an isolation sleeve 1 is sleeved outside the inner rotor 2 and positioned between the inner magnet 4 and the outer magnet 5, a second gap 10 is formed between the inner rotor 2 and the outer rotor 3, eddy heat generated by rotation of the inner rotor 2 in the isolation sleeve 1 is cooled by arranging a heat exchanger 8, the heat exchanger 8 can realize energy-saving equipment for heat transfer between materials between two or more than two fluids with different temperatures, so that the heat is transferred to the fluid with lower temperature from the fluid with higher temperature, the magnetic coupling is ensured not to exceed the working limit temperature, and the heat can be effectively prevented from being accumulated in the inner rotor 2 and the isolation sleeve 1.

In the above structure: because the vortex heat conflict in the air conditioning that heat exchanger 8 released and the spacer sleeve 1, can produce the drop of water between inner rotor 2 and outer rotor 3, the drop of water can get rid of the variety because inner rotor 2 and outer rotor 3's rotation after producing, can influence the magnetism of inner magnet 4 and outer magnet 5 and the rotation of inner rotor 2 and outer rotor 3, influence magnetic drive pump's conveying efficiency, for solving this technical problem, still be provided with drainage ring 11 in second clearance 10, drainage ring 11 can collect the drop of water in second clearance 10 on drainage piece 112, and draw forth, can effectively solve the drop of water and throw in disorder in second clearance 10, influence the rotation of inner rotor 2 and outer rotor 3.

In this embodiment: the guide plate 112 includes an annular fixing portion 111 and a guide plate 112 connected to the fixing portion 111, the fixing portion 111 is fixedly mounted on the housing of the heat exchanger 8, and the guide plate 112 extends into the second gap 10.

In the above structure: the guiding sheet 112 comprises a fixing part 111 and a guiding sheet 112, the fixing part 111 is annular and is fixedly sleeved on the shell of the heat exchanger 8 for fixing, the guiding sheet 112 is fixedly connected on the fixing part 111 and extends into the second gap 10, water drops are gathered by the guiding sheet 112 and are discharged out of the second gap 10 through the guiding sheet 112, and the water drops are prevented from being splashed in the second gap 10.

In this embodiment: the drainage plate 112 is in a circular truncated cone shape with a large bottom and a small opening, the bottom surface of the drainage plate 112 is positioned in the second gap 10, a gap is reserved between the drainage plate and the inner rotor 2 and the outer rotor 3, and one end opposite to the drainage plate is fixedly connected to the fixing part 111.

In this embodiment: the drainage sheet 112 is made of hard plastic.

In the above structure: the drainage sheet 112 is in a truncated cone shape with a large bottom and a small opening, the bottom surface and the side wall part of the drainage sheet 112 are positioned in the second gap 10 and used for gathering and leading gathered water drops out of the second gap 10, the bottom surface and the side wall part of the drainage sheet 112 are not in contact with the outer rotor 3 and the inner rotor 2, the drainage sheet 112 is prevented from being damaged when the inner rotor 2 and the outer rotor 3 rotate, the opening part of the drainage sheet 112 is fixedly connected to the fixing part 111, and the drainage ring 11 is fixed.

In this embodiment: the rotor comprises an inner rotor 2, a driving shaft 7 and a driven shaft 6, wherein the inner rotor 2 is fixedly sleeved on the driven shaft 6, and the outer rotor 3 is fixedly sleeved on the driving shaft 7.

In the above structure: the inner rotor 2 is fixedly sleeved on the driven shaft 6, the outer rotor 3 is fixedly sleeved on the driving shaft 7, the driving shaft 7 is driven to rotate through a motor, and the inner magnet 4 on the inner rotor 2 and the outer magnet 5 on the outer rotor 3 are magnetically attracted to realize that the driving shaft 7 magnetically drives the driven shaft 6 to rotate.

In this embodiment: an inner magnet 4 mounting groove arranged along the axial direction is formed in the outer circumference of the inner rotor 2, and an outer magnet 5 mounting groove arranged along the axial direction is formed in the inner circumference of the outer rotor 3.

In the above structure: an inner magnet 4 mounting groove and an outer magnet 5 mounting groove are respectively provided on the outer circumference of the inner rotor 2 and the inner circumference of the outer rotor 3 for mounting the fixing magnets.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims

1. The utility model provides a novel magnetic coupling for magnetic drive pump, is including inner rotor (2), separation sleeve (1) and outer rotor (3), fixed cover has connect interior magnet (4) on the outer circumference of inner rotor (2), fixed outer magnet (5) that have cup jointed on the interior circumference of outer rotor (3), its characterized in that: still including heat exchanger (8), heat exchanger (8) are the ring form and fixed cover is established outside outer magnet (5), be provided with first clearance (9) between heat exchanger (8) and outer magnet (5), separation sleeve (1) cover is established and is located between inner rotor (2) outside and magnet (4) and outer magnet (5), second clearance (10) have between inner rotor (2) and outer rotor (3), still be provided with drainage ring (11) in second clearance (10), the one end of drainage ring (11) is fixed on heat exchanger (8) shell, and the other end stretches into in second clearance (10).

2. The magnetic coupling for a novel magnetic pump according to claim 1, wherein: the drainage sheet (112) comprises a circular fixing part (111) and a drainage sheet (112) connected to the fixing part (111), the fixing part (111) is fixedly installed on the shell of the heat exchanger (8), and the drainage sheet (112) extends into the second gap (10).

3. The magnetic coupling for a novel magnetic pump according to claim 2, wherein: the drainage piece (112) is in a circular truncated cone shape with a large bottom and a small opening, the bottom surface of the drainage piece (112) is positioned in the second gap (10), a gap is reserved between the bottom surface of the drainage piece and the inner rotor (2) and between the bottom surface of the drainage piece and the outer rotor (3), and one end opposite to the bottom surface of the drainage piece is fixedly connected to the fixing part (111).

4. The magnetic coupling for a novel magnetic pump according to claim 3, wherein: the drainage sheet (112) is made of hard plastics.

5. The magnetic coupling for a novel magnetic pump according to claim 1, wherein: the motor is characterized by further comprising a driving shaft (7) and a driven shaft (6), the inner rotor (2) is fixedly sleeved on the driven shaft (6), and the outer rotor (3) is fixedly sleeved on the driving shaft (7).

6. The magnetic coupling for a novel magnetic pump according to claim 1, wherein: an inner magnet (4) mounting groove arranged along the axial direction is formed in the outer circumference of the inner rotor (2), and an outer magnet (5) mounting groove arranged along the axial direction is formed in the inner circumference of the outer rotor (3).