CN216950879U

CN216950879U - Centrifugal pump for pipeline transportation

Info

Publication number: CN216950879U
Application number: CN202220169851.9U
Authority: CN
Inventors: 李小飞; 李阿蓉; 杨荣东; 王瑞凤
Original assignee: Sanlianpump Industry Co ltd
Current assignee: Sanlianpump Industry Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-12
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses a centrifugal pump for pipeline conveying, which comprises a pump body and a filter box, wherein a water inlet pipe and a water outlet pipe are respectively arranged on the pump body, one side of the filter box is communicated with a connecting pipe, the outer side of the connecting pipe is welded with a connecting sleeve, a cavity is arranged in the connecting sleeve, a round hole is arranged at one side far away from the connecting pipe, one end, far away from the pump body, of the water outlet pipe penetrates through the round hole to be fixedly provided with a ring plate, one side, far away from the water outlet pipe, of the ring plate is fixedly provided with a first sealing ring, one side, close to the connecting pipe, of the connecting sleeve is provided with an annular groove, a buffer ring is connected in the groove in a sliding mode, a spring is fixedly connected between the buffer ring and the groove, the other side of the buffer ring is fixedly provided with a second sealing ring, one side, close to the round hole, in the connecting sleeve is connected with a sliding block in a sliding mode, and the sliding block is movably clamped with the ring plate. The water outlet pipe is tightly communicated with the connecting pipe, so that the connection tightness is ensured; and simultaneously, the quick installation work is convenient.

Description

Centrifugal pump for pipeline transportation

The technical field is as follows:

the utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump for pipeline conveying.

Background art:

in the development process of the petrochemical industry in China, various equipment can be needed, and the equipment, particularly important equipment, cannot be imported completely, and development is restricted by people if the equipment is imported completely. Only by strengthening the domestic attack of major equipment and gradually shortening the gap with foreign advanced technology, the method can grasp active competitiveness in international competition and promote the development of the petrochemical industry in China.

Under the current situation, pump manufacturing enterprises in China have the capability of technical innovation, and the research and development of large-scale oil pipeline pumps can be completely realized by introducing digestion, absorption and re-innovation from the aspect of enhancing the innovation capability of the enterprises. The existing centrifugal pump for pipeline conveying is often used for filtering impurities in conveying media by communicating the filtering device outside the water outlet pipe, but the sealing performance is poor when the water outlet pipe is connected with the filtering device, the leakage phenomenon can often occur, and meanwhile, the trouble of connecting and installing the pipes is very troublesome, so that the quick installation work is not convenient.

The utility model has the following contents:

in view of the problems in the prior art, the utility model aims to provide a centrifugal pump for pipeline transportation.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme: the utility model provides a centrifugal pump for pipeline transport, includes the pump body and rose box, be equipped with horizontal open-ended inlet tube and outlet pipe on the pump body respectively, rose box one side intercommunication has the connecting pipe, the welding of the connecting pipe outside has the adapter sleeve, the adapter sleeve is inside to be equipped with the cavity and to keep away from connecting pipe one side and be equipped with the round hole, the outlet pipe is kept away from pump body one end and is passed round hole fixed mounting and have the crown plate, the crown plate is kept away from outlet pipe one side fixed mounting and is had first sealing washer, the adapter sleeve is close to connecting pipe one side and is equipped with annular recess, and sliding connection has the buffering ring in the recess, fixedly connected with spring between buffering ring and the recess, buffering ring opposite side fixed mounting has the second sealing washer, inside round hole one side sliding connection that is close to the adapter sleeve has the slider, slider and crown plate activity joint.

Preferably, a connecting rod is fixedly mounted on one side, away from the water outlet pipe, of the sliding block, a pulling plate is fixedly mounted at one end, away from the sliding block, of the connecting rod through a connecting sleeve, a sleeve spring is sleeved on the outer side of the connecting rod, and two ends of the sleeve spring are fixedly connected with the pulling plate and the connecting sleeve respectively.

Preferably, the width of the second sealing ring is larger than that of the groove.

Preferably, the filter box is internally and fixedly provided with a filter screen, and the filter screen is positioned on the upper side of the connecting pipe.

Preferably, the bottom of the filter box is provided with a detachable sealing cover.

Preferably, the diameter of the circular hole is larger than that of the ring plate.

Preferably, a rubber pad is arranged at the joint of the pump cover and the pump body.

The beneficial effects of the utility model are:

the water outlet pipe sealing device is simple in structure, the buffer ring is extruded through the annular plate, the right side of the second sealing ring is attached to the right side wall of the connecting sleeve, the annular plate is clamped through the matching between the sliding block and the side wall of the connecting sleeve, the first sealing ring is closely attached to the second sealing ring through the matching of the sliding block, the annular plate, the buffer ring and the spring, the water outlet pipe is closely communicated with the connecting pipe, and therefore the connection sealing performance is guaranteed; meanwhile, under the elastic action of the sleeve spring, the sliding block can transversely position the annular plate under the action of the pulling plate, the sleeve spring and the connecting rod, the water outlet pipe and the filter box can be quickly connected, and meanwhile, the water outlet pipe and the filter box are convenient to detach.

Description of the 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 the overall structure of a pump body according to the present invention;

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

FIG. 3 is a schematic view of a filter box according to the present invention;

fig. 4 is a schematic view of the internal structure of the connecting sleeve of the present invention;

wherein: 1. a pump body; 2. a pump cover; 3. an impeller; 4. a seal ring; 5. a throat bushing; 6. a non-drive end bearing component; 7. a drive end bearing member; 8. fixing the bolt; 9. positioning the bolt; 10. a rubber pad; 11. a water inlet pipe; 12. a water outlet pipe; 13. a filter box; 14. a connecting pipe; 15. sealing the cover; 16. filtering with a screen; 17. connecting sleeves; 1701. a circular hole; 18. a ring plate; 19. a buffer ring; 20. a first seal ring; 21. a second seal ring; 22. a slider; 23. a connecting rod; 24. pulling a plate; 25. a spring sleeve; 26. a spring.

The specific implementation mode is as follows:

in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.

The embodiment is as follows:

as shown in fig. 1-4; a centrifugal pump for pipeline conveying comprises a pump body 1 and a filter box 13, wherein a water inlet pipe 11 and a water outlet pipe 12 with horizontal openings are respectively arranged on the pump body 1, one side of the filter box 13 is communicated with a connecting pipe 14, the outer side of the connecting pipe 14 is welded with a connecting sleeve 17, a cavity is arranged inside the connecting sleeve 17, a round hole 1701 is arranged on one side far away from the connecting pipe 14, one end, far away from the pump body 1, of the water outlet pipe 12 is fixedly provided with a ring plate 18 through the round hole 1701, one side, far away from the water outlet pipe 12, of the ring plate 18 is fixedly provided with a first sealing ring 20, one side, close to the connecting pipe 14, of the connecting sleeve 17 is provided with an annular groove, a buffering ring 19 is connected in the groove in a sliding manner, a spring 26 is fixedly connected between the buffering ring 19 and the groove, the other side of the buffering ring 19 is fixedly provided with a second sealing ring 21, one side, close to the round hole 1701, inside the connecting sleeve 17 is connected with a sliding block 22 in a sliding manner, the sliding block 22 is movably clamped with the ring plate 18.

One side, far away from outlet pipe 12, of slider 22 is fixedly mounted with connecting rod 23, connecting rod 23 is far away from slider 22 one end and is run through adapter sleeve 17 fixed mounting and have arm-tie 24, the cover spring 25 has been cup jointed to the connecting rod 23 outside, cover spring 25 both ends respectively with arm-tie 24 and adapter sleeve 17 rigid coupling.

The detachable pump cover 2 is installed to 1 upside of the pump body, 1 internally mounted of the pump body rotates has the pivot, and pivot middle part fixed mounting has impeller 3, the pivot both ends rely on non-drive end bearing unit 6 and drive end bearing unit 7 respectively to support, 1 structure of the pump body adopts the horizontal subdivision of axial, from non-drive end bearing unit 6 through positioning bolt 9 with pump body 1 connection, drive end bearing unit 7 is connected with pump body 1 through fixing bolt 8, 1 inner wall of the pump body with be equipped with sealing ring 4 between the impeller 3, sealing ring 4 installs in pump body 1 through the locating pin, all is equipped with axle sleeve and screw thread axle sleeve along axial from inside to outside in proper order in the pivot of both sides around the impeller 3, is equipped with throat bush 5 between the screw thread axle sleeve of both sides and pump cover 2 and the pump body 1.

The pump cover and the pump body are connected and assembled together through bolts to form a volute structure with symmetrical upper and flow channels, so that the radial force generated during the operation of the pump can be minimized. The rotating shaft traverses the pump cover and the pump body, the water inlet pipe and the water outlet pipe are both positioned below the axial lead of the pump and are distributed on both sides of the pump body, the cover can be opened to inspect parts in the pump without disassembling the inlet and outlet pipelines and the motor, and the maintenance and the operation are convenient. The pump body support leg is close to the central support, so that the misalignment problem caused by deformation caused by temperature difference can be reduced. The series of pumps not only have the advantages of good stability, high reliability, suitability for conveying medium containing solid particles, convenience in maintenance and the like, but also are more advanced and reliable in structure and service life.

The width of the second seal ring 21 is greater than the width of the groove.

A filter screen 16 is fixedly arranged in the filter box 13, and the filter screen 16 is positioned on the upper side of the connecting pipe 14.

Removable closing cap 15 is installed to rose box 13 bottom, is convenient for clear up the impurity of crossing the filtration.

The diameter of the circular hole 1701 is larger than that of the ring plate 18, so that the outlet pipe 12 can be conveniently connected with the connecting pipe 14.

And a rubber pad 10 is arranged at the joint of the pump cover 2 and the pump body 1 and used for improving the sealing property.

Specifically, when the water outlet pipe 12 is required to be connected with the filter box 13, the pulling plates 24 are pulled to the side far away from the connecting sleeve 17, the number of the pulling plates 24 is consistent with that of the sliding blocks 22, the sliding blocks 22 can be provided with a plurality of groups and distributed annularly along the connecting sleeve 17, the sliding blocks 22 are far away from each other through the connecting rods 23, then the ring plate 18 is extended into the cavity of the connecting sleeve 17, the filter box 13 is pushed to one side close to the pump body 1, the buffer ring 19 is extruded by the ring plate 18, so that the right side of the second sealing ring 21 is attached to the right side wall of the connecting sleeve 17 and the left end side face of the connecting pipe 14, the ring plate 18 is clamped through the matching between the sliding block 22 and the side wall of the connecting sleeve 17, under the matching of the sliding block 22, the ring plate 18, the buffer ring 19 and the spring 26, the first sealing ring 20 is tightly attached to the second sealing ring 21, so that the water outlet pipe 12 is tightly communicated with the connecting pipe 14, and the connection tightness is ensured.

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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A centrifugal pump for pipeline transportation is characterized in that: the pump comprises a pump body (1) and a filter box (13), wherein a water inlet pipe (11) and a water outlet pipe (12) with horizontal openings are respectively arranged on the pump body (1), one side of the filter box (13) is communicated with a connecting pipe (14), the outer side of the connecting pipe (14) is welded with a connecting sleeve (17), a cavity is arranged inside the connecting sleeve (17), one side of the connecting pipe (14) away from the connecting pipe is provided with a round hole (1701), one end of the water outlet pipe (12) away from the pump body (1) penetrates through the round hole (1701) to be fixedly provided with a ring plate (18), one side of the ring plate (18) away from the water outlet pipe (12) is fixedly provided with a first sealing ring (20), one side of the connecting sleeve (17) close to the connecting pipe (14) is provided with an annular groove, a buffer ring (19) is connected in the groove in a sliding manner, a spring (26) is fixedly connected between the buffer ring (19) and the groove, and the other side of the buffer ring (19) is fixedly provided with a second sealing ring (21), one side of the inside of the connecting sleeve (17), which is close to the round hole (1701), is connected with a sliding block (22) in a sliding manner, and the sliding block (22) is movably clamped with the ring plate (18); the detachable pump cover (2) is installed on the upper side of the pump body (1).

2. The centrifugal pump for pipeline transportation according to claim 1, wherein: slider (22) are kept away from outlet pipe (12) one side fixed mounting and are had connecting rod (23), slider (22) one end is kept away from in connecting rod (23) runs through adapter sleeve (17) fixed mounting and has arm-tie (24), cover spring (25) have been cup jointed in connecting rod (23) outside, cover spring (25) both ends respectively with arm-tie (24) and adapter sleeve (17) rigid coupling.

3. The centrifugal pump for pipeline transportation according to claim 1, wherein: the width of the second sealing ring (21) is larger than that of the groove.

4. The centrifugal pump for pipeline transportation according to claim 1, wherein: the filter box (13) is internally and fixedly provided with a filter screen (16), and the filter screen (16) is positioned on the upper side of the connecting pipe (14).

5. The centrifugal pump for pipeline transportation according to claim 4, wherein: the bottom of the filter box (13) is provided with a detachable sealing cover (15).

6. The centrifugal pump for pipeline transportation according to claim 1, wherein: the diameter of the circular hole (1701) is larger than that of the ring plate (18).

7. A centrifugal pump for pipeline transportation according to any one of claims 1 to 6, wherein: a rubber pad (10) is arranged at the joint of the pump cover (2) and the pump body (1).