CN110671334A

CN110671334A - Magnetic cyclone pump

Info

Publication number: CN110671334A
Application number: CN201910989046.3A
Authority: CN
Inventors: 凤金泉; 凤元树; 耿辉; 吴玲萍; 凤笑笑
Original assignee: Anhui Longquan Pump Valve Manufacturing Co Ltd
Current assignee: Anhui Longquan Pump Valve Manufacturing Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-01-10

Abstract

The invention discloses a magnetic cyclone pump, which comprises a front cover, an impeller bearing, a ceramic shaft sleeve, a pressurizing impeller, a pump body, a rotor bearing, a pump cover, a rotor, an isolation sleeve and an external magnetic part. The liquid enters the front pump cavity through the front cover and is pressurized by the impeller for the first time, then flows into the rear pump cavity through the through hole channel, is pressurized by the n blades of the pressurizing impeller in a rotating mode and then flows out through the diffusion pipe of the pump body. After the rotating speed of the magnetic cyclone pump is reduced, the lift requirement when the lift is improved to the original high rotating speed is met by increasing the number of the blades of the pressurizing impeller, and other parts such as the impeller and the pump body do not need to change the size, so that the heat generated by the magnetic cyclone pump with low rotating speed is less, the abrasion is reduced, and the service life of the pump is greatly prolonged.

Description

Magnetic cyclone pump

Technical Field

The invention relates to the technical field of pump valves, in particular to a magnetic cyclone pump.

Background

The fixed impeller of magnetic drive pump all is fixed lift, if need improve the lift, then there are two kinds of methods: 1. enlarging the diameter of the impeller; 2. one or more impellers are added. The first method is that the impeller is only enlarged to a certain size, the outlet of the impeller is seriously diffused and is easy to generate cavitation, the diameter can not be enlarged any more, and the pump body is correspondingly enlarged. The second method is to add an impeller, but the structure is complicated when the impeller is added to more than 3 stages, and the structure is more complicated if the plastic-lined magnetic pump needs to consider plastic lining and axially and mechanically lock the impeller.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the magnetic cyclone pump, and the lift can be changed by only replacing the pressurizing impellers with different numbers of blades without changing the structural size of a pump body. The greater the number of blades, the higher the head.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a magnetic rotational flow pump comprises a front cover, wherein the front cover is fixed on a pump body through metal position positioning, a shaft supported by a triangle is covered on the front cover, and a shaft sleeve is sleeved on the shaft;

the pump body is divided into two pump cavities, the front pump cavity contains the impeller, the rear pump cavity contains the pressurizing impeller, and a through hole channel is arranged between the flow channels of the two pump cavities;

a plurality of transmission bosses for transmitting torque are reserved on both sides of the pressurizing impeller, a plurality of transmission pits for transmitting torque are reserved at corresponding positions of the impeller and the rotor, and the impeller, the pressurizing impeller and the rotor are matched together through a plurality of transmission bosses and pits;

the rotor is internally provided with internal magnetism; the impeller, the pressurizing impeller and the rotor synchronously rotate with external magnetism on a shaft sleeve through the impeller bearing and the rotor bearing, and the external magnetism is connected to a shaft of the motor;

an isolation sleeve is arranged between the inner magnet and the outer magnet and is fixed on the pump cover.

The further technology of the invention is as follows:

preferably, the shaft is provided with opposite sides, and the sleeve is sleeved outside the shaft and inhibits radial rotation through the opposite sides.

Preferably, the inner hole of the isolation sleeve is sleeved on the shaft and limits the shaft sleeve.

Preferably, thrust rings are arranged at the positions of the impeller inlet and the pump body inlet and at the positions of the back of the pressurizing blade corresponding to the pump cover so as to balance the front and back axial forces.

Preferably, the number of the blades of the pressurizing impeller is n, and n is more than 1.

Has the advantages that:

the liquid in the magnetic cyclone pump enters the front pump cavity through the front cover and is pressurized by the impeller for the first time, then flows into the rear pump cavity through the through hole channel, is rotated and pressurized by the n blades of the pressurized impeller and then flows out through the diffusion pipe of the pump body; after the rotating speed of the magnetic cyclone pump is reduced, the lift is increased to the original lift requirement at high rotating speed by increasing the number of the blades of the pressurizing impeller, and the diameters of other parts such as the impeller, the pump body and the like do not need to be increased, so that the heat generated by the magnetic cyclone pump at low rotating speed is less, the abrasion is reduced, and the service life of the pump is greatly prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;

FIG. 1 is a schematic view of a magnetic vortex pump;

FIG. 2 is a schematic view of the front cover structure;

FIG. 3 is a front view of the front cover;

FIG. 4 is a schematic view of a pressurized impeller configuration;

FIG. 5 is a front view of the pressurized impeller;

the labels in the figures are specifically: 1 front cover, 2 impellers, 3 impeller bearings, 4 shaft sleeves, 5 pressurizing impellers, 6 pump bodies, 7 rotor bearings, 8 pump covers, 9 rotors, 10 isolating sleeves, 11 external magnets, 12 supports, 13 bottom plates, 14 motors, 102 shafts, 101 triangular supports and 501 transmission bosses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a magnetic cyclone pump comprises a front cover 1, an impeller 2, an impeller bearing 3, a shaft sleeve 4, a pressurizing impeller 5, a pump body 6, a rotor bearing 7, a pump cover 8, a rotor 9, an isolation sleeve 10, an outer magnet 11, a bracket 12, a bottom plate 13 and a motor 14.

The front cover 1 is fixed on the pump body 6 through metal position location. As shown in fig. 2 to 3, the front cover 1 is provided with a shaft 102 of a triangular support 101. Opposite sides are left on the shaft. The sleeve 4 is fitted over the shaft and inhibits radial rotation by opposing edges.

As shown in fig. 4-5, a plurality of transmission bosses 501 for transmitting torque are provided on both sides of the pressurizing impeller 5, a plurality of transmission pits for transmitting torque are provided on corresponding positions of the impeller 2 and the rotor 9, and the impeller 2, the pressurizing impeller 5 and the rotor 9 are fitted together through a plurality of transmission bosses and pits. The inner hole of the impeller 2 is provided with an impeller bearing 3, and the inner hole of the rotor 9 is provided with a rotor bearing 7. The impeller 2, the pressurizing impeller 5 and the rotor 9 can synchronously rotate with the outer magnet 11 on the shaft sleeve 4 through bearings. The outer magnet 11 is connected to the shaft of the motor 14, a bracket 12 is arranged between the motor and the pump body for connection, and a bottom plate 13 is arranged below the motor 14 and the pump body;

an isolation sleeve 10 is arranged between the inner magnet and the outer magnet, and the isolation sleeve 10 is fixed on the pump cover 8. The inner hole of the isolation sleeve 10 is sleeved on the plastic layer of the metal shaft outer lining bag and limits the shaft sleeve 4.

Thrust rings are arranged at the positions of the inlet of the impeller 2, the inlet of the pump body 6 and the back of the pressurizing blade 5 corresponding to the pump cover 8 to balance the front and back axial forces.

The pump body 6 is divided into two pump chambers, the front pump chamber accommodating the impeller 2 and the rear pump chamber accommodating the pressurizing impeller 5. A through hole channel is arranged between the flow channels of the two pump cavities. The liquid enters the front pump cavity through the front cover 1 and is pressurized by the impeller 2 for the first time, then flows into the rear pump cavity through the through hole channel, is pressurized by the rotation of the blades of the pressurizing impeller 5 and then flows out through the diffusion pipe of the pump body 6.

The number of blades of the pressurizing impeller may not be fixed, and the number of blades is changed corresponding to different delivery lifts of the pump. When the lift is changed, only the pressurizing impeller needs to be replaced, the sizes of other parts do not need to be changed, namely, the lift of the pump can be increased only by increasing the number of the blades of the pressurizing impeller in the magnetic torque range of the pump configuration, and the installation size does not need to be changed. As long as one pump is provided with different pressurizing impellers within the magnetic torque range of the pump configuration, the pump can cover various models required by the original traditional magnetic pump. The universality and the economy of the pump using the invention are greatly increased. The components that the user needs to plan for inventory are greatly reduced and the cost is reduced.

And the magnetic pump is because of the structure reason, axle and axle sleeve can rub and produce the heat, and the higher the rotational speed is the heat is bigger, and the heat needs complicated internal circulation to take away, and once the internal circulation is not smooth, then the magnetic pump just easily damages. Therefore, the lower the rotation speed of the magnetic pump, the better, but if the rotation speed of the conventional magnetic pump is reduced, the lift will be greatly reduced. The present invention can change the phenomenon. After the rotating speed of the magnetic cyclone pump is reduced, the lift can be increased to the original high-rotating-speed lift requirement by increasing the number of the blades of the pressurizing impeller, and the diameters of other parts such as the impeller, the pump body and the like do not need to be increased. Therefore, the magnetic pump with low rotating speed generates less heat and reduces abrasion, and the service life of the pump is greatly prolonged.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. 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.

Claims

1. Magnetic force vortex pump, its characterized in that: the pump comprises a front cover, wherein the front cover is fixed on a pump body through metal position positioning, a shaft supported by a triangle is covered on the front cover, and a shaft sleeve is sleeved on the shaft;

2. The magnetic cyclonic pump of claim 1, wherein: the shaft is provided with opposite edges, and the shaft sleeve is sleeved on the shaft and inhibits radial rotation through the opposite edges.

3. The magnetic cyclonic pump of claim 1, wherein: the inner hole of the isolation sleeve is sleeved on the shaft and limits the shaft sleeve.

4. The magnetic cyclonic pump of claim 1, wherein: thrust rings are arranged at the positions of the impeller inlet and the pump body inlet and at the positions of the back of the pressurizing blade corresponding to the pump cover to balance the front and back axial forces.

5. The magnetic cyclonic pump of claim 1, wherein: the number of the blades of the pressurizing impeller is n, and n is more than 1.