CN219035098U

CN219035098U - Corrosion-resistant horizontal centrifugal pump

Info

Publication number: CN219035098U
Application number: CN202223365684.4U
Authority: CN
Inventors: 赵宝春
Original assignee: Jiangsu Jinlanjing Intelligent Environmental Protection Technology Co ltd
Current assignee: Jiangsu Jinlanjing Intelligent Environmental Protection Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-16
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a corrosion-resistant horizontal centrifugal pump, which relates to the technical field of centrifugal pumps, and is characterized by comprising a bottom plate, wherein the upper end surface of the bottom plate is fixedly connected with a motor and a pump shell, the side walls of the two sides of the pump shell are respectively fixedly connected with a short sleeve and a long sleeve, through holes are formed in the side walls of the pump shell and positioned at the short sleeve and the long sleeve, a transmission shaft is arranged in the pump shell, the two ends of the transmission shaft are respectively and rotatably connected with the inner side walls of the short sleeve and the long sleeve through waterproof bearings, one end of the transmission shaft, which is close to the long sleeve, is fixedly connected with an inner rotor through a coupling, an output shaft of the motor is fixedly connected with an outer rotating sleeve, the outer rotating sleeve is sleeved with the inner rotor, and a plurality of magnetic steels are embedded in the outer side walls of the inner rotor and the inner side walls of the outer rotating sleeve.

Description

Corrosion-resistant horizontal centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a corrosion-resistant horizontal centrifugal pump.

Background

The centrifugal pump is designed according to the centrifugal force principle, the centrifugal pump transmits mechanical energy of a prime mover to liquid by virtue of the action of a rotating impeller to do work on the liquid, the speed and the pressure energy of the liquid are increased in the process that the inlet of the impeller flows to the outlet of the impeller due to the action of the centrifugal force, most of the speed energy of the liquid discharged by the impeller is converted into the pressure energy after passing through the extrusion chamber and then is conveyed out through a discharge pipeline, at the moment, the inlet of the impeller forms low pressure and hollow due to the discharge of the liquid, so that the liquid can be sucked, and the rotating impeller can continuously suck and discharge the liquid;

most of impellers of centrifugal pumps are driven by motors, the joint of a pump shell and a transmission shaft is required to be sealed, and most of the prior art adopts mechanical sealing, however, a sealing stirrer has short sealing service life, is easy to wear and corrode to cause leakage, and needs to replace sealing parts frequently, so that the cost is increased.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a corrosion-resistant horizontal centrifugal pump.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a corrosion-resistant horizontal centrifugal pump, includes the bottom plate, the up end fixedly connected with motor and the pump case of bottom plate, fixedly connected with short cover and long cover on the both sides lateral wall of pump case respectively, all open with long cover department on the lateral wall of pump case and be located short cover, the inside of pump case is equipped with the transmission shaft, the both ends of transmission shaft rotate with the inside wall of short cover, long cover through waterproof bearing respectively and are connected, the one end fixedly connected with inner rotor that the transmission shaft is close to long cover, the output shaft of motor passes through the outer cover that changes of shaft coupling fixedly connected with, the inner rotor is overlapped to the outer cover that changes, all embedded a plurality of magnet steel on the lateral wall of inner rotor and the inside wall of outer cover that changes.

Preferably, the transmission shaft is fixedly connected with an impeller, the side wall of the impeller is fixedly connected with a plurality of blades, and the pump shell is fixedly connected with a suction pipe and a pressing pipe.

Preferably, a shield is arranged above the bottom plate, and the lower end of the shield and the upper end face of the bottom plate are provided with connecting holes corresponding to each other.

Preferably, the end, far away from the pump shell, of the suction pipe and the extrusion pipe is fixedly connected with a flange plate.

Preferably, a plurality of foot blocks are fixedly connected to two sides of the bottom plate, and mounting holes are formed in the foot blocks.

Compared with the prior art, the utility model has the following beneficial effects:

1. the output shaft of the motor can drive the outer rotating sleeve to rotate through the coupler, the outer rotating sleeve drives the magnetic steel on the outer rotating sleeve to rotate, the magnetic steel on the inner rotor can drive the inner rotor to rotate under the influence of magnetic field induction, the inner rotor drives the transmission shaft to rotate, the transmission shaft is driven through the influence of the magnetic field between the magnetic steels, so that the pump shell and the long sleeve can be kept complete, the problems of easy abrasion and easy leakage of mechanical seal are avoided, and the corrosion resistance of the centrifugal pump is effectively improved;

2. the shield is aligned with the connecting hole of the bottom plate, so that the shield can be fixed by using bolts, and the shield covers the outer transmission sleeve, thereby improving the safety.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a pump housing and suction line according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an impeller and blades according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a base plate and a shield according to an embodiment of the present utility model.

In the figure: 1. a bottom plate; 2. a motor; 3. a pump housing; 4. a suction pipe; 5. a pressing pipe; 6. short sleeve; 7. a long sleeve; 8. a through port; 9. a transmission shaft; 10. a waterproof bearing; 11. an inner rotor; 12. an outer swivel; 13. magnetic steel; 14. an impeller; 15. a blade; 16. a shield; 17. a connection hole; 18. a flange plate; 19. a foot block; 20. and (5) mounting holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a corrosion-resistant horizontal centrifugal pump, including bottom plate 1, bottom plate 1's up end fixedly connected with motor 2 and pump case 3, respectively fixedly connected with short cover 6 and long cover 7 on the both sides lateral wall of pump case 3, on the lateral wall of pump case 3 and be located short cover 6 and long cover 7 department all open through-hole 8, like fig. 2, through-hole 8 can communicate pump case 3 with short cover 6, long cover 7 all, the inside of pump case 3 is equipped with transmission shaft 9, the both ends of transmission shaft 9 are respectively through waterproof bearing 10 and short cover 6, the inside wall swivelling joint of long cover 7, like fig. 2, short cover 6 and long cover 7 are respectively through waterproof bearing 10 supporting the both ends of transmission shaft 9, and transmission shaft 9 can rotate, the one end fixedly connected with inner rotor 11 that the transmission shaft 9 is close to long cover 7, the output shaft of motor 2 is through the shaft coupling fixedly connected with outer rotor 12, like fig. 4, the output shaft of motor 2 can drive outer rotor 12 through the shaft coupling and rotate, inner rotor 12 live inner rotor 11, the inside wall of inner rotor 11 and inner rotor 11 rotate on the inside wall of inner rotor 11 and the inside wall of inner rotor 13 and the magnetic steel 13 drive the magnet steel 13 and rotate, and the magnet steel 13 on the inner rotor 11 and the magnet steel is rotated and the inner rotor 11 is rotated and is influenced by the magnet steel on the inner rotor 13;

the magnetic field between the magnetic steels 13 influences the driving shaft 9 to keep the pump shell 3 and the long sleeve 7 complete, so that the problems of easy abrasion and easy leakage of mechanical seal are avoided, and the corrosion resistance of the centrifugal pump is effectively improved.

Specifically, the driving shaft 9 is fixedly connected with an impeller 14, a plurality of blades 15 are fixedly connected to the side wall of the impeller 14, the pump housing 3 is fixedly connected with the suction pipe 4 and the extrusion pipe 5, as shown in fig. 2 and 3, the driving shaft 9 can drive the impeller 14 to rotate, the impeller 14 drives the blades 15 to rotate, and the blades 15 suck liquid through the suction pipe 4 and pump the liquid out through the extrusion pipe 5.

Specifically, a shield 16 is disposed above the bottom plate 1, the lower end of the shield 16 and the upper end surface of the bottom plate 1 are provided with corresponding connection holes 17, as shown in fig. 4, the connection holes 17 of the upper end surface of the bottom plate 1 are internally provided with internal threads, the shield 16 is aligned with the connection holes 17 of the bottom plate 1, the shield 16 can be fixed by using bolts, the shield 16 covers the outer transmission sleeve 12, and safety is improved.

Specifically, the ends of the suction pipe 4 and the extrusion pipe 5 far away from the pump shell 3 are fixedly connected with a flange 18, and the connection with an external pipeline is facilitated through the flange 18.

Specifically, a plurality of foot blocks 19 are fixedly connected to two sides of the bottom plate 1, and mounting holes 20 are formed in the foot blocks 19, so that the position of the bottom plate 1 can be fixed by using bolts.

Working principle: as shown in fig. 2-4, the short sleeve 6 and the long sleeve 7 respectively support two ends of the transmission shaft 9 through the waterproof bearing 10, the transmission shaft 9 can rotate, the output shaft of the motor 2 can drive the outer rotating sleeve 12 to rotate through the coupling, the outer rotating sleeve 12 drives the magnetic steel 13 on the outer rotating sleeve 12 to rotate, the magnetic steel 13 on the inner rotor 11 can drive the inner rotor 11 to rotate under the influence of magnetic field induction, the inner rotor 11 drives the transmission shaft 9 to rotate, the transmission shaft 9 can drive the impeller 14 to rotate, the impeller 14 drives the blades 15 to rotate, the blades 15 suck liquid through the suction pipe 4 and pump the liquid out through the pressure pipe 5, the transmission shaft 9 is driven through the influence of the magnetic field between the magnetic steels 13, so that the pump shell 3 and the long sleeve 7 can keep complete, the problems of easy abrasion and easy leakage of a mechanical seal are avoided, and the corrosion resistance of the centrifugal pump is effectively improved.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A corrosion-resistant horizontal centrifugal pump comprising a bottom plate (1), characterized in that: the novel high-speed motor is characterized in that the upper end face of the bottom plate (1) is fixedly connected with the motor (2) and the pump shell (3), the short sleeve (6) and the long sleeve (7) are fixedly connected to the side walls of the two sides of the pump shell (3) respectively, through holes (8) are formed in the side walls of the pump shell (3) and located at the short sleeve (6) and the long sleeve (7), a transmission shaft (9) is arranged in the pump shell (3), the two ends of the transmission shaft (9) are respectively connected with the short sleeve (6) and the inner side wall of the long sleeve (7) in a rotating mode through waterproof bearings (10), an inner rotor (11) is fixedly connected to one end, close to the long sleeve (7), of the transmission shaft (9) through a shaft coupling fixedly connected with an outer rotating sleeve (12), the outer rotating sleeve (12) covers the inner rotor (11), and a plurality of magnetic steels (13) are embedded in the outer side walls of the inner rotor (11) and the inner side wall of the outer rotating sleeve (12).

2. A corrosion resistant horizontal centrifugal pump according to claim 1, wherein: an impeller (14) is fixedly connected to the transmission shaft (9), a plurality of blades (15) are fixedly connected to the side wall of the impeller (14), and a suction pipe (4) and an extrusion pipe (5) are fixedly connected to the pump shell (3).

3. A corrosion resistant horizontal centrifugal pump according to claim 1, wherein: a shield (16) is arranged above the bottom plate (1), and connecting holes (17) corresponding to each other are formed in the lower end of the shield (16) and the upper end face of the bottom plate (1).

4. A corrosion resistant horizontal centrifugal pump according to claim 2, wherein: the suction pipe (4) and one end of the extrusion pipe (5) far away from the pump shell (3) are fixedly connected with a flange plate (18).

5. A corrosion resistant horizontal centrifugal pump according to claim 1, wherein: both sides of the bottom plate (1) are fixedly connected with a plurality of foot blocks (19), and mounting holes (20) are formed in the foot blocks (19).