CN208966599U - Centrifugal pump - Google Patents

Abstract

This application provides a kind of centrifugal pumps, comprising: pump case；Pump shaft, pump shaft are arranged in pump case；Impeller is provided on pump shaft, pump shaft can be rotated relative to pump case, be rotated with impeller；Movable part, movable part are set on pump shaft；Movable part can be rotated when pump shaft rotates；Baffle ring, the outer ring that baffle ring includes the inner ring being sheathed on outside pump shaft, is disposed around outside inner ring, and multiple ribs of connection inner ring and outer rings, outer ring is fixed on pump case, movable part is located at the top of inner ring, and inner ring can offset with movable part, multiple ribs are circumferentially arranged, and the through-hole passed through for fluid is formed between adjacent supports rib；Rotor is provided between baffle ring and movable part, movable part can be rotated by rotor relative to baffle ring；Limit sleeve is provided in pump case, baffle ring is mutually fixed with limit sleeve, and the lower righting portion for carrying out righting to pump shaft is provided on limit sleeve.The application embodiment provides a kind of centrifugal pump that can eliminate sagging power.

Description

Centrifugal pump

Technical field

This application involves natural petroleum gas field field more particularly to a kind of centrifugal pumps.

Background technique

Centrifugal pump can be used for the mine water pressurization after water-oil separating being recycled into underground implanted layer.

Centrifugal pump in the prior art includes pump case and the pump shaft that is arranged in pump case.Due to pump shaft rotation when because itself Gravity and generate sagging power, so impeller on pump shaft often generates friction between pump case, to cause the abrasion of impeller.To the greatest extent It manages centrifugal pump in the prior art and is provided with wear mechanisms, but due to the presence of the sagging power, so above-mentioned wear mechanisms are still It is so damaged in a short time, thereby reduces the service life of centrifugal pump.

Utility model content

In view of this, the application embodiment provides a kind of centrifugal pump that can eliminate sagging power.

To achieve the above object, this application provides the following technical solutions: a kind of centrifugal pump, comprising: pump case；Pump shaft, The pump shaft is arranged in the pump case；Impeller is provided on the pump shaft, the pump shaft can be rotated relative to the pump case, with Drive the wheel rotation；Movable part, the movable part are set on the pump shaft；The movable part can be rotated in the pump shaft When rotate；Baffle ring, the baffle ring includes the inner ring being sheathed on outside the pump shaft, the outer ring that is disposed around outside the inner ring, with And multiple ribs of the connection inner ring and the outer ring, the outer ring are fixed on the pump case, the movable part is located at The top of the inner ring, and the inner ring can offset with the movable part, multiple ribs are circumferentially arranged, adjacent described The through-hole passed through for fluid is formed between ribs.

As a preferred embodiment, rotor is provided between the baffle ring and the movable part, the work Moving part can be rotated by the rotor relative to the baffle ring.

As a preferred embodiment, the movable part is provided in face of the side of the baffle ring for collecting post State the annular groove of rotor.

As a preferred embodiment, the movable part is loose collar, the loose collar is sheathed on the pump shaft, Upper bushing and lower bushing are arranged at intervals on the pump shaft, the loose collar pushes against between the upper bushing and lower bushing.

As a preferred embodiment, limit sleeve is provided in the pump case, the baffle ring and the limit sleeve It is mutually fixed, the lower righting portion for carrying out righting to the pump shaft is provided on the limit sleeve.

As a preferred embodiment, the lower righting portion include it is multiple be set on the limit sleeve inner wall plus Strengthening tendons, each reinforcing rib radially extend, and each reinforcing rib back to the side of the limit sleeve be used for it is described Pump shaft offsets.

As a preferred embodiment, the limit sleeve include inner sleeve, the housing being sheathed on outside the inner sleeve and The reinforcing rib of the inner sleeve and the housing is connected, the pump shaft is arranged in the inner sleeve, and the inner sleeve faces institute The side for stating pump shaft is provided with wear-resistant material, and the outer ring is mutually fixed with the housing.

As a preferred embodiment, the upper end of the pump case is connected with top connection, it is provided in the top connection For carrying out the upper righting portion of righting to the pump shaft.

As a preferred embodiment, being provided with the upper cap for sealing the pump case in the top connection.

As a preferred embodiment, the lower end of the pump case is connected with lower contact, it is provided in the lower contact Seal the lower cover cap of the pump case.

By above technical solution, centrifugal pump described in the application embodiment passes through setting baffle ring, the baffle ring Including the inner ring being sheathed on outside pump shaft, the outer ring being disposed around outside inner ring, and multiple ribs of connection inner ring and outer rings, outer ring It being fixed on pump case, movable part is located at the top of inner ring, and inner ring can offset with movable part, and multiple ribs are circumferentially arranged, The through-hole passed through for fluid is formed between adjacent supports rib；One side baffle ring is enabled to eliminate pump shaft because under caused by gravity Vertical power；On the other hand, the fluid of top can be pressurizeed and then be flowed downward to be recycled into underground implanted layer by centrifugal pump.Therefore, originally Application embodiment provides a kind of centrifugal pump that can eliminate sagging power.

Detailed description of the invention

Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding to the application, and It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the centrifugal pump of the application embodiment；

Fig. 2 is the cross-sectional view in Fig. 1 along the direction A-A；

Fig. 3 is the side view of the baffle ring of the application embodiment；

Fig. 4 is the top view of the baffle ring of the application embodiment；

Fig. 5 is the structural schematic diagram of the movable part of the application embodiment；

Fig. 6 is the structural schematic diagram of the travel position of the centrifugal pump of the application embodiment.

Specific embodiment

Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear Chu is fully described by, it is clear that described embodiment is only a part of embodiment of the application, rather than whole realities Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts The every other embodiment obtained, shall fall in the protection scope of this application.

Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.

Please refer to Fig. 1, Fig. 3, Fig. 4, a kind of centrifugal pump provided by present embodiment, comprising: pump case 11；Pump shaft 13, institute Pump shaft 13 is stated to be arranged in the pump case 11；Impeller 55 is provided on the pump shaft 13, the pump shaft 13 can be relative to the pump Shell 11 rotates, to drive the impeller 55 to rotate；Movable part 15, the movable part 15 are set on the pump shaft 13；The work Moving part 15 can be rotated when the pump shaft 13 rotates；Baffle ring 25, the baffle ring 25 include being sheathed on outside the pump shaft 13 Inner ring 19, the outer ring 21 being disposed around outside the inner ring 19, and multiple ribs of the connection inner ring 19 and the outer ring 21 23, the outer ring 21 is fixed on the pump case 11, and the movable part 15 is located at the top of the inner ring 19, and the inner ring 19 It can offset with the movable part 15, multiple ribs 23 are circumferentially arranged, and are formed between the adjacent ribs 23 for stream The through-hole 22 that body passes through.

In use, pump shaft 13 is connected with the shaft of motor first, so that the shaft of motor can drive the pump shaft 13 Rotation, so that impeller 55 rotates.And when pump shaft 13 rotate when, movable part 15 with pump shaft 13 rotate, and movable part 15 with it is interior Ring 19 offsets, since inner ring 19 is fixed on pump case 11 by ribs 23, so baffle ring 25 can eliminate pump shaft 13 because of gravity Generated sagging power significantly improves the use of centrifugal pump so as to avoid the excessive wear between impeller 55 and pump case 11 Service life.Further, since multiple ribs 23 are circumferentially arranged, formation passes through for fluid between the adjacent ribs 23 Through-hole 22, and then the fluid of top can be pressurizeed and then be flowed downward to be recycled into underground implanted layer by centrifugal pump.

The centrifugal pump described in the application embodiment it can be seen from above scheme passes through setting baffle ring 25, the backstop Ring 25 includes the inner ring 19 being sheathed on outside pump shaft 13, the outer ring 21 being disposed around outside inner ring 19, and connection inner ring 19 and outer ring 21 Multiple ribs 23, outer ring 21 is fixed on pump case 11, and movable part 15 is located at the top of inner ring 19, and inner ring 19 can be with activity Part 15 offsets, and multiple ribs 23 are circumferentially arranged, and the through-hole 22 passed through for fluid is formed between adjacent supports rib 23；So that one Aspect baffle ring 25 can eliminate pump shaft 13 because of sagging power caused by gravity；On the other hand, centrifugal pump can add the fluid of top It is pressed into and flows downward to be recycled into underground implanted layer.

As shown in Figure 1, in the present embodiment, pump case 11 is in hollow tubular on the whole.The hollow space is formed up and down The through hole of perforation so as to make fluid flow downward by the through hole, and then is recycled into underground implanted layer.The pump case 11 Upper end be connected with top connection 45, so as to be connected by the motor of 11 top of the top connection 45 and pump case.The pump case 11 with it is upper Connection type between connector 45 can be threaded connection, screw is connected, is bolted, welds, is integrally formed.Further Ground is provided with external screw thread on the outer wall of top connection 45, is provided on the inner wall of pump case 11 for the external screw thread phase with top connection 45 The internal screw thread of connection.Further, the lower end of pump case 11 is connected with lower contact 47.Connection between the pump case 11 and lower contact 47 Mode can be threaded connection, screw is connected, is bolted, welds, is integrally formed.Further, the outer wall of lower contact 47 On be provided with external screw thread, the internal screw thread for being connected with the external screw thread of lower contact 47 is provided on the inner wall of pump case 11.Into one Step ground, as shown in fig. 6, in order to reduce in transportational process to the damage of upper pump head and lower pump head while dust be avoided to enter pump case In 11, it is provided with the upper cap 49 of seal cage 11 in top connection 45, the lower cover cap of seal cage 11 is provided in lower contact 47 51.Specifically, upper cap 49 is connected by dismountable mode with top connection 45, thus after transport, it can be by upper cover Cap 49 disassembles, and connects so that centrifugal pump described herein is connected to the motor.Dismountable mode can be screw company It connects, be bolted.Lower cover cap 51 is connected by dismountable mode with lower contact 47, thus when transport after, can will under Nut cap 51 disassembles, and connects so that centrifugal pump described herein is connected to the motor.Dismountable mode can be screw It connects, be bolted.

In the present embodiment, the upper end of pump shaft 13 with the rotating shaft transmission of motor for connecting, so as to be driven by motor Dynamic pump shaft 13 is rotated relative to pump case 11.Specifically, the upper end of pump shaft 13 is equipped with spline housing 53 by the first screw 68, thus Pump shaft 13 and being rotatedly connected for motor can be connect by spline housing 53.Pump shaft 13 is arranged in pump case 11.It is provided on pump shaft 13 Impeller 55, pump shaft 13 can be rotated relative to pump case 11, with the rotation of impeller 55.Further, setting is useful in top connection 45 In the upper righting portion 63 for carrying out righting to pump shaft 13.Righting portion 63 includes inner ring 57, outer ring 59 and connection 57 and of inner ring on this The dowel (not shown) of outer ring 59.Pump shaft 13 is arranged in inner ring 57.

As shown in Figure 1, shown in Figure 5, in the present embodiment, movable part 15 is annular in shape on the whole.I.e. movable part 15 is loose collar. Pump shaft 13 is arranged in loose collar.Upper bushing 29 and lower bushing 31 are arranged at intervals on pump shaft 13, loose collar is pushed against in upper bushing Between 29 and lower bushing 31.Specifically, the first alloy sheath 35, upper positioning sleeve 27, upper bushing are arranged on pump shaft 13 from top to bottom 29, loose collar and lower bushing 31.First alloy sheath 35 is arranged in the inner ring 57 in righting portion 63, first alloy sheath 35 tool There is wear-resisting property, to be avoided that the abrasion between pump shaft 13 and inner ring 57.Circlip 64 is provided on pump shaft 13, the circlip 64 In the top of the first alloy sheath 35, and the circlip 64 pushes against in inner ring 57, and lower bushing 31 passes through the second screw 70 and pump shaft 13 It is connected, so that circlip 64 offsets upper bushing 29, lower bushing 31 with loose collar.To which movable part 15 can be when pump shaft 13 rotates Rotation.

As shown in figure 1, figure 3 and figure 4, in the present embodiment, baffle ring 25 include be sheathed on outside pump shaft 13 inner ring 19, The outer ring 21 being disposed around outside inner ring 19, and multiple ribs 23 of connection inner ring 19 and outer ring 21, outer ring 21 are fixed on pump case On 11, movable part 15 is located at the top of inner ring 19, and inner ring 19 can offset with movable part 15, and multiple ribs 23 are circumferentially arranged Cloth forms the through-hole 22 passed through for fluid between adjacent supports rib 23.Further, the outer diameter of movable part 15 and inner ring 19 is outer Diameter is equal, to can guarantee that fluid can be flowed into through-hole 22 by the annular space 44 between movable part 15 and pump case 11.

In one embodiment, rotor is provided between baffle ring 25 and movable part 15, movable part 15 can be by turning Kinetoplast is rotated relative to baffle ring 25.The rotor be it is multiple, multiple rotors are uniformly distributed in baffle ring 25 and living along axial direction Between moving part 15.

As shown in figure 5, further, movable part 15 is provided with the ring for accommodating rotor in face of the side of baffle ring 25 Slot 17.

As shown in Fig. 2, in one embodiment, limit sleeve 43, baffle ring 25 and limit sleeve 43 are provided in pump case 11 It is mutually fixed, the lower righting portion for carrying out righting to pump shaft 13 is provided on limit sleeve 43.Specifically, it is provided with down in pump case 11 Positioning sleeve 33 and the limit sleeve 43 below lower positioning sleeve 33.The upper end of lower positioning sleeve 33 passes through impeller 55 and 45 phase of top connection It supports, lower end and the lower contact 47 of limit sleeve 43 offset, so that limit sleeve 43 is fixed in pump case 11.Further, lower righting Portion includes multiple reinforcing ribs 41 being set on 43 inner wall of limit sleeve, and each reinforcing rib 41 radially extends, and each reinforcing rib 41 are used to offset with pump shaft 13 back to the side of limit sleeve 43.

As shown in Fig. 2, further, limit sleeve 43 includes inner sleeve 37, the housing 39 being sheathed on outside inner sleeve 37 and connection The reinforcing rib 41 of inner sleeve 37 and housing 39, pump shaft 13 are arranged in inner sleeve 37, and inner sleeve 37 is provided in face of the side of pump shaft 13 Wear-resistant material, to be avoided that the abrasion between pump shaft 13 and inner sleeve 37.The outer ring 21 of baffle ring 25 is threadedly coupled with housing 39. To which baffle ring 25 is fixed in pump case 11 by limit sleeve 43, and then when the rotation of pump shaft 13, loose collar can be rotated with pump shaft 13, and It offsets with baffle ring 25, and then the sagging power of pump shaft 13 is acted on baffle ring 25, to offset sagging power.As shown in Figure 1, Further, which is the second alloy sheath 72.

It should be noted that term " first ", " second " etc. are used for description purposes only and distinguish in the description of the present application Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition, In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.

It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art See.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and this The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special The disclosure of benefit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed Apply for a part of theme.

Claims (10)

1. a kind of centrifugal pump characterized by comprising

Pump case；

Pump shaft, the pump shaft are arranged in the pump case；Impeller is provided on the pump shaft, the pump shaft can be relative to the pump Shell rotation, to drive the wheel rotation；

Movable part, the movable part are set on the pump shaft；The movable part can be rotated when the pump shaft rotates；

Baffle ring, the baffle ring includes the inner ring being sheathed on outside the pump shaft, the outer ring that is disposed around outside the inner ring, Yi Jilian Multiple ribs of the inner ring and the outer ring are connect, the outer ring is fixed on the pump case, and the movable part is located at described The top of inner ring, and the inner ring can offset with the movable part, multiple ribs are circumferentially arranged, the adjacent support The through-hole passed through for fluid is formed between rib.

2. centrifugal pump according to claim 1, it is characterised in that: be provided with and turn between the baffle ring and the movable part Kinetoplast, the movable part can be rotated by the rotor relative to the baffle ring.

3. centrifugal pump according to claim 2, it is characterised in that: the movable part is arranged in face of the side of the baffle ring There is the annular groove that rotor is stated for collecting post.

4. centrifugal pump according to claim 1, it is characterised in that: the movable part is loose collar, and the loose collar is arranged In on the pump shaft, being arranged at intervals with upper bushing and lower bushing on the pump shaft, the loose collar push against in the upper bushing and Between lower bushing.

5. centrifugal pump according to claim 1, it is characterised in that: be provided with limit sleeve, the baffle ring in the pump case It is mutually fixed with the limit sleeve, the lower righting portion for carrying out righting to the pump shaft is provided on the limit sleeve.

6. centrifugal pump according to claim 5, it is characterised in that: the lower righting portion includes multiple being set to the limit The reinforcing rib on inner wall is covered, each reinforcing rib radially extends, and each reinforcing rib is back to the one of the limit sleeve Side with the pump shaft for offseting.

7. centrifugal pump according to claim 6, it is characterised in that: the limit sleeve includes inner sleeve, is sheathed on the inner sleeve The reinforcing rib of outer housing and the connection inner sleeve and the housing, the pump shaft is arranged in the inner sleeve, and institute It states inner sleeve and the side of the pump shaft is provided with wear-resistant material, the outer ring is mutually fixed with the housing.

8. centrifugal pump according to claim 1, it is characterised in that: the upper end of the pump case is connected with top connection, it is described on The upper righting portion for carrying out righting to the pump shaft is provided in connector.

9. centrifugal pump according to claim 8, it is characterised in that: be provided with the upper of the sealing pump case in the top connection Nut cap.

10. centrifugal pump according to claim 1, it is characterised in that: the lower end of the pump case is connected with lower contact, under described The lower cover cap for sealing the pump case is provided on connector.