CN215595912U

CN215595912U - High-efficient magnetic drive centrifugal pump

Info

Publication number: CN215595912U
Application number: CN202121456964.9U
Authority: CN
Inventors: 郑明霞; 毛章俊
Original assignee: Jiangsu Wangyuan Pump Valve Manufacturing Co ltd
Current assignee: Jiangsu Wangyuan Pump Valve Manufacturing Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-21
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a high-efficiency magnetic drive centrifugal pump, relating to the field of centrifugal pumps, wherein the mechanism comprises a bottom plate, the motor and the first pump body are connected through the threaded assembly, the bottom end of the motor and the bottom end of the first pump body are connected to the top end of the bottom plate through the threaded assembly, the first pump body is provided with a first cavity and a second cavity, the first cavity and the second cavity are separated through a partition plate, external magnets and internal magnets are arranged in the first cavity, a first impeller is arranged in the second cavity, a first rotating shaft is arranged on one side, close to the first pump body, of the motor, the external magnets are fixedly connected with the first rotating shaft through clamping, a second rotating shaft is arranged on one side, close to the second cavity, of the internal magnets, penetrates through the partition plate and is connected with the first impeller in a sleeved mode, and the partition plate and the first pump body are arranged in an integrated mode.

Description

High-efficient magnetic drive centrifugal pump

Technical Field

The utility model relates to the field of centrifugal pumps, in particular to a high-efficiency magnetic drive centrifugal pump.

Background

The magnetically driven centrifugal pump is a leakage-free centrifugal pump driven by magnetic force. The pump body is totally closed except for the suction and discharge short pipes, a shaft sealing device can be eliminated, the pump body is provided with a super-large rear hub, two annular magnets which are respectively connected with the impeller and the rotating shaft are arranged on the inner side and the outer side of the pump body, when the motor drives the rotating shaft to operate, the impeller is driven to rotate under the mutual suction action of the two magnets, and the pump has the advantages of good sealing performance, fixed power, non-adjustability and overhigh maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the high-efficiency magnetic drive centrifugal pump.

The utility model is realized by the following technical scheme: the utility model provides a high-efficient magnetic drive centrifugal pump, its structure includes bottom plate, motor and the first pump body, the relative one side of motor and the first pump body is connected through threaded component, motor and first pump body bottom all connect in the bottom plate top through threaded component, the first pump body is equipped with first cavity and second cavity, first cavity and second cavity are separated through the baffle, be equipped with outer magnetism and interior magnetism in the first cavity, be equipped with first impeller in the second cavity, the motor is close to first pump body one side and is equipped with first pivot, outer magnetism passes through the card with first pivot and firmly is connected, interior magnetism is close to second cavity one side and is equipped with the second pivot, the second pivot runs through the baffle and cup joints with first impeller and is connected, the baffle sets up with first pump body formula as an organic whole.

Preferably, one side of the first pump body, which is close to the second cavity, is provided with a pump cover connected through a threaded assembly, the pump cover is provided with a liquid pumping pipe along the central axis, the inner wall of the liquid pumping pipe penetrates through the pump cover, and the top end of the first pump body is provided with a liquid conveying pipe communicated with the second cavity.

Preferably, the magnetic drive centrifugal pump still includes the second pump body, the second pump body is one at least, the second pump body passes through threaded component with the first pump body and is connected, the second pump body is close to first pump body one side and is equipped with the guide plate, the second pump body is equipped with the third cavity, be equipped with the second impeller in the third cavity, the second impeller cup joint with the second pivot is terminal, reached that board outer wall and second cavity inner wall and third cavity inner wall all align the setting.

Preferably, the magnetic drive centrifugal pump further comprises at least one third rotating shaft, and the third rotating shaft is fixedly connected with the second rotating shaft in a clamping manner.

Preferably, the magnetically driven centrifugal pump further comprises at least two sealing rings.

Drawings

FIG. 1 is a schematic sectional view of a high-efficiency magnetically driven centrifugal pump according to a first embodiment;

fig. 2 is a schematic sectional structural diagram of a high-efficiency magnetically-driven centrifugal pump according to a second embodiment.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

The first embodiment is as follows:

as shown in fig. 1, the present invention discloses a high-efficiency magnetic force driven centrifugal pump, comprising: the device comprises a bottom plate 1, a motor 2 and a first pump body 3, wherein opposite sides of the motor 2 and the first pump body 3 are connected through a threaded component, the bottom ends of the motor 2 and the first pump body 3 are connected to the top end of the bottom plate 1 through the threaded component, the first pump body 3 is provided with a first cavity 31 and a second cavity 32, the first cavity 31 and the second cavity 32 are separated through a partition plate 33, an outer magnet 311 and an inner magnet 312 are arranged in the first cavity 31, a first impeller 321 is arranged in the second cavity 32, a first rotating shaft 21 is arranged on one side of the motor 2 close to the first pump body 3, the first rotating shaft 21 is fixedly connected with the motor 1, the outer magnet 311 is fixedly connected with the first rotating shaft 21 through clamping, a first clamping block is arranged on one side of the first rotating shaft 21 close to the first pump body 3, a first clamping groove is arranged on one side of the outer magnet 311 close to the motor 2, and the outer wall of the first clamping block is aligned with the inner wall of the first clamping groove, the inner magnet 312 is provided with a second rotating shaft 313 on one side close to the second cavity 32, the second rotating shaft 313 penetrates through the partition plate 33 and is connected with the first impeller 321 in a sleeved mode, and the partition plate 33 and the first pump body 3 are arranged in an integrated mode.

Further, as shown in fig. 1, a pump cover 34 connected by a screw assembly is disposed on one side of the first pump body 3 close to the second cavity 32, a liquid suction pipe 341 is disposed on the pump cover 34 along the central axis, the inner wall of the liquid suction pipe 341 penetrates through the pump cover 34, and an infusion tube 322 communicated with the second cavity 32 is disposed at the top end of the first pump body 3.

Based on the structure, as shown in fig. 1, the magnetic force driven centrifugal pump works according to the working principle that the motor 2 drives the first rotating shaft 21 to rotate, the first rotating shaft 21 drives the outer magnet 311 to rotate, the outer magnet 311 drives the inner magnet 312 to rotate, the inner magnet 312 drives the first impeller 321 to rotate through the second rotating shaft 313, the first impeller pumps out a required solution through the liquid pumping pipe 341 and then discharges the solution from the liquid conveying pipe 322, when any one of the first pump body 3, the outer magnet 311 and the inner magnet 312 is damaged, the connection between the motor 2 and the threaded assembly of the first pump body 3 can be released, then the connection between the first pump body 3 and the threaded assembly of the base plate 1 can be released for replacement, and when any one of the first impeller 321 and the pump cover 34 is damaged, the connection between the pump cover 34 and the threaded assembly of the first pump body 3 can be released for replacement, so that the maintenance cost is reduced.

Example two:

as shown in fig. 2, based on the first embodiment, in order to increase efficiency, the magnetic drive centrifugal pump further includes at least one second pump body 4, the second pump body 4 is connected to the first pump body 3 through a threaded component, a guide plate 41 is disposed on one side of the second pump body 4 close to the first pump body 3, the second pump body 4 is provided with a third cavity 42, a second impeller 43 is disposed in the third cavity 42, the second impeller 43 is sleeved and connected to a tail end of the second rotating shaft 313, and an outer wall of the plate 41 is aligned with an inner wall of the second cavity 32 and an inner wall of the third cavity.

Further, as shown in fig. 2, for convenience of connection, the magnetically-driven centrifugal pump further includes at least one third rotating shaft 44, the third rotating shaft 44 is fixedly clamped to the second rotating shaft 313, a second clamping groove is formed in the tail end of the second rotating shaft 313 along the central axis, a second clamping block is arranged on one side, close to the second rotating shaft, of the third rotating shaft 44, a third clamping groove is formed in the other side of the third rotating shaft 44, and the outer wall of the second clamping block is aligned to the inner wall of the second clamping groove and the inner wall of the third clamping groove.

Based on the above structure, as shown in fig. 2, the second embodiment has the operation principle that the pump cover 34 is firstly released from being connected with the screw assembly of the first pump body 3, then the side of the second pump body provided with the guide plate 41 is sleeved with the second cavity, then the second pump body 4 is fixed with the third pump body 3 through the screw assembly, the second impeller 43 is sleeved with the tail end of the second rotating shaft 313, the pump cover 34 is fixed with the second pump body 4 through the screw assembly, so as to increase the solution pumping efficiency, further, when one second pump body 4 is added, the pump cover 34 is released from being connected with the screw assembly of the second pump body, the guide plate 41 of the added second pump body 4 is sleeved with the third cavity 42 of the previous second pump body 4, the opposite sides of the two second pump bodies 4 are fixed through the screw assembly, the second fixture block of the third rotating shaft 44 is fixedly fastened with the second fixture groove at the tail end of the second rotating shaft, the pump cover 4 is fixedly fastened with the added second pump body 4 through the screw assembly, by analogy, the staff can increase or decrease the second pump body 4 according to the requirements, so that the adjustment is convenient.

Example three:

as shown in fig. 1-2, based on the second embodiment, in order to increase the sealing performance, the magnetically-driven centrifugal pump further includes at least two sealing rings 5.

Based on the structure, as shown in fig. 1, the joint of the motor 2 and the first pump body 3 and the joint of the first pump body 2 and the pump cover 34 are both provided with the sealing rings 5, as shown in fig. 2, the joint of the motor 2 and the first pump body 3, the joint of the first pump body 3 and the second pump body 4 and the joint of the second pump body 4 and the pump cover 34 are both provided with the sealing rings 5, and so on.

Compared with the prior art, the utility model reduces the maintenance cost, increases the efficiency, is convenient to adjust and increases the sealing property.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. An efficient magnetically driven centrifugal pump, comprising: the pump comprises a base plate (1), a motor (2) and a first pump body (3), wherein one opposite side of the motor (2) and the first pump body (3) is connected through a threaded component, the bottom ends of the motor (2) and the first pump body (3) are connected to the top end of the base plate (1) through the threaded component, the first pump body (3) is provided with a first cavity (31) and a second cavity (32), the first cavity (31) and the second cavity (32) are separated through a partition plate (33), an outer magnet (311) and an inner magnet (312) are arranged in the first cavity (31), a first impeller (321) is arranged in the second cavity (32), a first rotating shaft (21) is arranged on one side, close to the first pump body (3), of the motor (2), the outer magnet (311) is connected with the first rotating shaft (21) through clamping, and a second rotating shaft (313) is arranged on one side, close to the second cavity (32), of the inner magnet (312), the second rotating shaft (313) penetrates through the partition plate (33) and is connected with the first impeller (321) in a sleeved mode, and the partition plate (33) and the first pump body (3) are arranged in an integrated mode.

2. The magnetically driven centrifugal pump according to claim 1, wherein a pump cover (34) connected by a screw assembly is disposed on a side of the first pump body (3) close to the second cavity (32), a liquid suction pipe (341) is disposed along a central axis of the pump cover (34), an inner wall of the liquid suction pipe (341) penetrates through the pump cover (34), and a liquid delivery pipe (322) communicated with the second cavity (32) is disposed at a top end of the first pump body (3).

3. The magnetically-driven centrifugal pump according to claim 2, further comprising a second pump body (4), wherein at least one second pump body (4) is provided, the second pump body (4) is connected with the first pump body (3) through a threaded component, a guide plate (41) is provided on one side of the second pump body (4) close to the first pump body (3), the second pump body (4) is provided with a third cavity (42), a second impeller (43) is provided in the third cavity (42), the second impeller (43) is sleeved and connected with the end of the second rotating shaft (313), and the outer wall of the guide plate (41) is aligned with the inner wall of the second cavity (32) and the inner wall of the third cavity (42).

4. The magnetically driven centrifugal pump of claim 3, further comprising at least one third shaft (44), wherein the third shaft (44) is fixedly connected to the second shaft (313).

5. Magnetically driven centrifugal pump according to any of claims 1-4, characterized in that it further comprises at least two sealing rings (5).