CN111894858A

CN111894858A - Novel multistage booster pump

Info

Publication number: CN111894858A
Application number: CN202010002027.XA
Authority: CN
Inventors: 文海罡
Original assignee: Xihua University
Current assignee: Xihua University
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-11-06

Abstract

The invention discloses a novel multistage booster pump, which comprises a pump head, a pump body and booster components, wherein the pump head and the pump body are of an integrally formed structure, a water outlet is arranged above the pump body, the bottom of the pump body is fixedly connected with a water inlet shell, a sealing flange is fixedly arranged above the pump head, a motor is fixedly arranged on the sealing flange through a screw, a coupling is arranged on an output shaft of the motor, a rotating shaft is fixedly connected on the coupling, a bearing is arranged at the bottom of the pump body, the rotating shaft downwards penetrates through the bottom of the pump head, extends to the bottom of the pump body and is matched with an inner ring of the bearing, a part of the surface of the rotating shaft arranged in the pump body is sleeved with a spacer bush, each booster component comprises a plurality of booster components, each booster component comprises an impeller and a guide vane which are fixedly arranged on the spacer bush and a fluid, high working efficiency and long service life.

Description

Novel multistage booster pump

Technical Field

The invention relates to the field of booster pumps, in particular to a novel multistage booster pump.

Background

The multistage booster pump is a universal hydraulic machine with a very wide application range, has the advantages of compact integral structure, small volume, light weight, low noise, obvious energy-saving effect and the like, and along with the rapid development of Chinese science and technology in recent years, the requirement on the multistage booster pump is continuously increased, and the working principle is as follows: when the motor drives the impeller on the shaft to rotate at a high speed, the liquid filled in the impeller is thrown to the periphery of the impeller from the center of the impeller along the flow channels among the blades under the action of centrifugal force, the pressure and the speed are increased simultaneously due to the action of the blades, and the liquid passes through the flow channels of the flow guider and is guided to the next-stage impeller.

The general bottom of vertical multistage centrifugal pump among the prior art soaks in liquid for a long time, and its mechanical seal structure sealing member can be worn and torn after its long-time work, causes its leakproofness to reduce, leads to along with the increase of live time, and sealed energy-conserving effect is more and more poor, and work efficiency is more and more low, influences the life of centrifugal pump, causes the liquid entering motor part of the internal pump even and influences the normal work of motor, and the safety in utilization is not strong, can not be fine satisfies people's user demand. Therefore, a vertical multistage centrifugal pump with better sealing performance, long service life and use safety guarantee is needed.

Disclosure of Invention

The present invention is directed to overcome the deficiencies of the prior art and to provide a novel multi-stage booster pump to solve the problems of the prior art.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a novel multistage booster pump, includes pump head, pump body and pressure components, the pump head with the pump body is the integrated into one piece structure, and pump body top is equipped with the delivery port, and pump body bottom fixedly connected with water inlet housing, the fixed sealing flange that is equipped with in pump head top, there is the motor through screw fixed mounting on the sealing flange, be equipped with the shaft coupling on the output shaft of motor, fixedly connected with pivot on the shaft coupling, pump body bottom are equipped with the bearing, the pivot downwards run through the pump head bottom and extend to pump body bottom with the inner circle of bearing is mutually supported, and the inside partial surface cover of pump body is arranged in to the pivot is equipped with the spacer, pressure components includes a plurality of pressure components, and each pressure components includes fixed mounting and is in impeller, stator and the divertor of fixed mounting on the.

Furthermore, the penetrating position of the rotating shaft and the pump body is provided with a sealing element, water in the pump body of the house enters the pump head to damage the coupler and the motor, and the sealing performance of the booster pump is enhanced.

Furthermore, the shaft coupling is sleeved with a protection plate, the protection plate can prevent foreign matters from damaging the shaft coupling, and the use performance of the booster pump is enhanced.

Furthermore, a hydraulic control valve is arranged on the water outlet, and the water pressure of the water outlet can be adjusted according to the required water pressure through the hydraulic control valve.

Further, be equipped with mounting flange on pump body and the casing of intaking respectively, be equipped with the tensioning piece between the mounting flange of the mounting flange on the pump body and the mounting flange of the casing of intaking, the tensioning piece is fixing bolt, and the tensioning piece makes the casing of intaking and the connection between the pump body more firm, further prevents that the casing of intaking from droing from the pump body.

Furthermore, a plurality of water inlet holes are formed in the bottom of the pump body.

Further, pump head and pump body are cast iron material, and the surface of pump head and pump body is equipped with anticorrosive coating respectively, the casing of intaking and spacer are stainless steel.

Furthermore, the bottom of the water inlet shell is provided with a filter screen, and the filter screen can prevent sundries in the water body from entering the booster pump and damaging the booster pump.

Furthermore, be equipped with the soundproof cotton on the inside wall of pump body, the noise that can less booster pump studio sent for the booster pump is more quiet when working again.

The invention has the beneficial effects that: the novel multistage booster pump is characterized in that the motor is arranged above the pump head through the sealing flange, the coupling connected with the rotating shaft of the motor is sleeved with the protection plate, the penetrating part of the rotating shaft and the pump body is provided with the sealing element, the whole sealing effect and the protection effect of the booster pump are enhanced, the service life of the booster pump is prolonged, the sound insulation cotton is arranged on the inner side wall of the pump body, the noise generated during the operation of the booster pump can be effectively reduced, and the noise pollution of the booster pump is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom view of the pump body of the present invention;

in the figure, 1-pump head, 2-pump body, 3-pressurizing assembly, 4-water outlet, 5-water inlet housing, 6-sealing flange, 7-motor, 8-coupler, 9-rotating shaft, 10-bearing, 11-spacer bush, 12-sealing piece, 13-protective plate, 14-hydraulic control valve, 15-tensioning piece, 21-water inlet, 22-soundproof cotton, 31-impeller, 32-guide vane, 33-flow guider and 51-filter screen.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Example (b):

a novel multistage booster pump is shown in attached figures-1 and-2, and comprises a pump head 1, a pump body 2 and booster components 3, wherein the pump head 1 and the pump body 2 are of an integrated structure, a water outlet 4 is formed above the pump body 2, a water inlet shell 5 is fixedly connected to the bottom of the pump body 2, a sealing flange 6 is fixedly arranged above the pump head 1, a motor 7 is fixedly arranged above the sealing flange 6 through screws, a coupler 8 is arranged on an output shaft of the motor 7, a rotating shaft 9 is fixedly connected to the coupler 8, a bearing 10 is arranged at the bottom of the pump body 2, the rotating shaft 9 downwards penetrates through the bottom of the pump head 1 and extends to the bottom of the pump body 2 to be matched with an inner ring of the bearing 10, a spacer 11 is sleeved on the surface of a part of the rotating shaft 9, which is arranged inside the pump body 2, each booster component 3 comprises a plurality of booster components, and each booster component 3 comprises an, A guide vane 32 and a flow guider 33 fixedly arranged on the inner side wall of the pump body 2.

In one embodiment of the novel multistage booster pump, a sealing element 12 is arranged at the penetrating position of the rotating shaft 9 and the pump body 2, so that water in the pump body 2 is prevented from entering the pump head 1 to damage the coupler 8 and the motor 7, and the sealing performance of the booster pump is enhanced.

In one embodiment of the novel multistage booster pump, the shaft coupling 8 is sleeved with the protection plate 13, the protection plate 13 can play a role in protecting the shaft coupling 8, the shaft coupling 8 is prevented from being damaged by foreign matters, and the service performance of the booster pump is enhanced.

In one embodiment of the novel multistage booster pump, the hydraulic control valve 14 is arranged on the water outlet 4, the hydraulic control valve 14 can adjust the water pressure of the water outlet 4 according to the required water pressure, and the joint of the water outlet 4 and the pump body 2 adopts a fillet design as the optimal selection so as to reduce the cavitation erosion phenomenon and the kinetic energy loss of the booster pump in the working process and improve the safety performance of the water pump.

In one embodiment of the novel multistage booster pump, the pump body 2 and the water inlet shell 5 are respectively provided with a mounting flange, a tensioning piece 15 is arranged between the mounting flange on the pump body 2 and the mounting flange of the water inlet shell 5, the tensioning piece 15 is a fixing bolt, the tensioning piece 15 enables the connection between the water inlet shell 5 and the pump body 2 to be firmer, the water inlet shell 5 is further prevented from falling off from the pump body 2, and the use performance of the booster pump is enhanced.

In one embodiment of the novel multistage booster pump, a plurality of water inlet holes 21 are formed in the bottom of the pump body 2.

In an embodiment of the novel multistage booster pump, the pump head 1 and the pump body 2 are made of cast iron, the outer surfaces of the pump head 1 and the pump body 2 are respectively provided with an anticorrosive coating, and the water inlet housing 5 and the spacer 11 are made of stainless steel.

In one embodiment of the novel multistage booster pump, the bottom of the water inlet shell 5 is provided with a filter screen 51, and the filter screen 51 can prevent sundries in the water body from entering the booster pump to damage the booster pump.

In one embodiment of the novel multistage booster pump, the soundproof cotton 22 is arranged on the inner side wall of the pump body 2, so that noise emitted by a working chamber of the booster pump can be reduced, and the booster pump is quieter in work.

When the centrifugal liquid pump is used, liquid is filled in the pump body, the motor is started, the output shaft of the motor is driven by the coupler to rotate, so that the impellers on two sides of the rotating shaft are driven to rotate together, the liquid enters from the water inlet shell and flows into the pump body through the through hole in the bottom of the pump body, the blades of the impeller 31 drive the liquid to rotate together due to the high-speed rotation of the impeller 31, the liquid flows to the edge of the impeller 31 by virtue of the obtained centrifugal force when rotating, in the process, the liquid in the impeller 31 flows around the blades, a lifting force acts on the blades in the circulating motion, in turn, the blades act on the liquid by a counter-acting force which is equal to the lifting force in magnitude and opposite in direction, the force acts on the liquid, the liquid obtains higher kinetic energy, at the moment, the guide vanes 32 collect the liquid centrifuged by the impeller 31, so that the flow speed of the liquid is reduced, after part of the speed energy head is converted into the pressure energy head, the liquid is uniformly introduced into the next stage through the fluid director 33, and as the plurality of pressurizing components 3 are arranged in the invention, the liquid in the pressurizing pump is gradually pressurized in the pump body to obtain higher lift, and finally is discharged through the water outlet 4.

To sum up, the motor 7 of the invention is installed above the pump head 1 through the sealing flange 6, the shaft coupling 8 connected with the output shaft of the motor is sleeved with the protective plate 13, the penetrating part of the rotating shaft 9 and the pump body 2 is provided with the sealing element 12, the sealing effect and the protective effect of the whole booster pump are enhanced, the service life of the booster pump is prolonged, the sound insulation cotton 22 is arranged on the inner side wall of the pump body 2, the noise generated during the operation of the booster pump can be effectively reduced, and the noise pollution of the booster pump is reduced.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A novel multistage booster pump comprises a pump head (1), a pump body (2) and a booster component (3), and is characterized in that the pump head (1) and the pump body (2) are of an integrally formed structure, a water outlet (4) is arranged above the pump body (2), the bottom of the pump body (2) is fixedly connected with a water inlet shell (5), a sealing flange (6) is fixedly arranged above the pump head (1), a motor (7) is fixedly arranged above the sealing flange (6) through a screw, a coupler (8) is arranged on an output shaft of the motor (7), a rotating shaft (9) is fixedly connected onto the coupler (8), a bearing (10) is arranged at the bottom of the pump body (2), the rotating shaft (9) downwards penetrates through the bottom of the pump head (1) and extends to the bottom of the pump body (2) to be matched with an inner ring of the bearing (10), and a spacer bush (11) is sleeved on the partial surface of the rotating shaft (, the pressurizing assembly (3) comprises a plurality of pressurizing assemblies, and each pressurizing assembly (3) comprises an impeller (31) fixedly installed on the spacer bush (11), a guide vane (32) and a fluid director (33) fixedly installed on the inner side wall of the pump body (2).

2. The novel multistage booster pump according to claim 1, wherein a sealing member (12) is provided at a penetration portion of the rotating shaft (9) and the pump body (2).

3. The novel multistage booster pump according to claim 1, wherein the coupling (8) is sleeved with a protection plate (13).

4. The novel multistage booster pump according to claim 1, characterized in that a hydraulic control valve (14) is arranged on the water outlet (4).

5. The novel multistage booster pump of claim 1, wherein the pump body (2) and the water inlet housing (5) are respectively provided with mounting flanges, a tightening member (15) is arranged between the mounting flanges of the pump body and the water inlet housing, and the tightening member (15) is a fixing bolt.

6. The novel multistage booster pump as claimed in claim 1, wherein a plurality of water inlet holes (21) are formed in the bottom of the pump body (2).

7. The novel multistage booster pump according to claim 1, wherein the pump head (1) and the pump body (2) are made of cast iron, the outer surfaces of the pump head (1) and the pump body (2) are respectively provided with an anticorrosive coating, and the water inlet housing (5) and the spacer (11) are made of stainless steel.

8. A novel multistage booster pump according to claim 1, characterized in that the bottom of the water inlet housing (5) is provided with a filter screen (51).

9. The novel multistage booster pump of claim 1, wherein the inner side wall of the pump body (2) is provided with soundproof cotton (22).