CN210660741U

CN210660741U - Novel centrifugal pump casing

Info

Publication number: CN210660741U
Application number: CN201921328641.4U
Authority: CN
Inventors: 高亮; 高向文; 周胜良; 付全力
Original assignee: Tianjin Dongpo Pump Co Ltd
Current assignee: Tianjin Dongpo Pump Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-06-02
Anticipated expiration: 2029-08-16

Abstract

The utility model provides a novel centrifugal pump case, this technical scheme has carried out brand-new design to the overall structure of pump case. Particularly, the utility model is provided with the groove body on one side of the suction pipe and is provided with a plurality of rib plates depending on the inner wall of the groove body and the outer wall of the suction pipe, thereby playing a role of strengthening the structure of the suction pipe; on the basis, a flange connection mode is abandoned, and a longer internal thread pipe is fixedly connected with the lug plate through a screw, so that the stable connection of the disc at the tail end of the disc-shaped shell is realized. Meanwhile, the utility model discloses add the additional pipe in the disc casing outside, can carry out the recoil from this additional pipe when the inside blocking phenomenon that takes place of pump case to break up the blockage fast under the prerequisite of pump case not unpacing apart. The utility model discloses effectively improved the tightness of centrifugal pump case, had good result of use.

Description

Novel centrifugal pump casing

Technical Field

The utility model relates to a centrifugal pump technical field, concretely relates to novel centrifugal pump case.

Background

Centrifugal pumps, also known as centrifugal water pumps or centrifugal water pumps, are a type of pump that relies on centrifugal force generated when an impeller rotates to transport a liquid. Before starting, the pump is filled with water, the impeller which rotates after starting drives the water in the pump to rotate at high speed, and the water is centrifugally moved, thrown out outwards and pressed into the water outlet pipe. After the water is thrown out, the pressure near the impeller is reduced, and a low-pressure area is formed near the rotating shaft. The pressure is much lower than the atmospheric pressure, and the outside water can open the bottom valve and enter the pump from the water inlet pipe under the action of the atmospheric pressure. The water rushed in is thrown out again in high-speed rotation along with the impeller and is pressed into the water outlet pipe. The impeller is driven by the power machine to rotate at a high speed continuously, and water is continuously pumped from a low position to a high position.

The basic structure of centrifugal pump is composed of six parts, which are impeller, pump casing (also called pump body), pump shaft, bearing, sealing ring and stuffing box. The pump casing serves as an external structure of the pump, plays a role in sealing and protecting the internal structure, and meanwhile, the pump casing is pressurized in the operation process and serves as a fluid conveying channel, so that the sealing performance and the firmness of the pump casing are very important. In the prior art, the pump casing still needs to be strengthened in the aspects of structural firmness, sealing performance and the like.

Disclosure of Invention

The utility model discloses aim at to prior art's technical defect, provide a novel centrifugal pump case to solve prior art, the conventional pump case of centrifugal pump remains the technical problem who strengthens in aspects such as tightness and leakproofness.

The utility model discloses another technical problem that solves is, when the inside blocking phenomenon that takes place of pump case, how quick breaking blockage under the prerequisite of not taking apart the pump case.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

a novel centrifugal pump shell comprises a disc-shaped shell, an output pipe, a groove body, a suction pipe, ribbed plates, an internal threaded pipe, an additional pipe, a disc, an ear plate, a through hole, a first shaft hole, an impeller, a second shaft hole and a protruding pipe, wherein the output pipe is fixedly connected to the side part of the disc-shaped shell, one end of the disc-shaped shell is closed, the groove body is arranged on the outer side of the closed end of the disc-shaped shell, the suction pipe is connected to the central position of the outer side of the closed end of the disc-shaped shell, a plurality of ribbed plates are fixedly connected between the inner wall of the groove body and the outer wall of the suction pipe, a plurality of internal threaded pipes are fixedly connected to the outer wall; the edge fixedly connected with of disc has a plurality of otic placodes, has seted up the through-hole on the otic placode, the through-hole is fixed with the internal thread pipe to closing the doubling screw, and the disc is located the other end of disc casing, and the disc encloses into an inner chamber with the disc casing, puts at the central point of disc and has seted up first shaft hole, and the impeller is located in the inner chamber, put at the central point of impeller and have the second shaft hole one side fixedly connected with bulge tube in the second shaft hole the axle keyway has been seted up on the inner wall of bulge tube.

Preferably, the axis of the first shaft hole and the axis of the second shaft hole coincide with each other.

Preferably, a rubber plug is inserted at the port of the additional pipe.

Preferably, the axis of the delivery tube is perpendicular to the axis of the suction tube.

Preferably, there are 4 ribs, and the angle between each 2 adjacent ribs is 90 °.

In the technical scheme, the disc-shaped shell is used for accommodating the impeller and carrying structures such as an output pipe, a suction pipe and the like; the output pipe is used for outputting the sucked fluid upwards; the groove body is used for arranging a rib plate; the suction pipe is used for allowing fluid to flow into the disc-shaped shell; the ribbed plate has a structure reinforcing effect on the suction pipe, so that the suction pipe is not easy to deform under the continuous impact of fluid; the internal thread pipe is used for involuting with the through hole on the lug plate and then is screwed and fixed, so that the disc and the disc-shaped shell are fixed; the additional pipe is sealed by a rubber plug in daily use, and when the interior of the pump shell is blocked, the rubber plug can be opened to be inserted into the water pipe to perform backflushing so as to break away the blocking objects; the disc is used for closing the other end of the disc-shaped shell; the ear plate is used for arranging the through hole and plays a role in fixing; the through hole is used for inserting a bolt; the first shaft hole is used for the rotating shaft to pass through so as to realize the connection between the rotating shaft and the impeller, and in practical application, a mechanical seal or a packing seal is arranged between the first shaft hole and the rotating shaft; the impeller is driven by the rotating shaft to rotate so as to provide power for pumping; the second shaft hole is also used for allowing the rotating shaft to pass through, so that the rotating shaft extends into the protruding pipe; the inner wall of the projecting pipe is provided with a shaft key groove, and the rotating shaft is correspondingly provided with a shaft key, so that the rotating shaft and the impeller are in transmission relation.

Drawings

FIG. 1 is a perspective view of the present invention from a single viewing angle;

fig. 2 is a perspective view of the present invention from another perspective;

fig. 3 is an exploded view of the present invention from one perspective;

fig. 4 is an exploded view of the present invention from another time;

in the figure:

1. disc-shaped shell 2, output pipe 3, groove body 4 and suction pipe

5. Ribbed plate 6, internal thread tube 7, additional tube 8 and disc

9. Ear plate 10, through hole 11, first shaft hole 12 and impeller

13. Second shaft hole 14, protruding pipe.

Detailed Description

The following will describe in detail specific embodiments of the present invention. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

A novel centrifugal pump shell is shown in figures 1-4 and comprises a disc-shaped shell 1, an output pipe 2, a groove body 3, a suction pipe 4, rib plates 5, an internal threaded pipe 6, an additional pipe 7, a disc 8, an ear plate 9, a through hole 10, a first shaft hole 11, an impeller 12, a second shaft hole 13 and a protruding pipe 14, wherein the output pipe 2 is fixedly connected to the side portion of the disc-shaped shell 1, one end of the disc-shaped shell 1 is closed, the groove body 3 is arranged on the outer side of the closed end of the disc-shaped shell 1, the suction pipe 4 is connected to the center position of the outer side of the closed end of the disc-shaped shell 1, the rib plates 5 are fixedly connected between the inner wall of the groove body 3 and the outer wall of the suction pipe 4, the internal threaded pipe 6 is fixedly connected to the outer wall of the side portion of the; a plurality of otic placodes 9 of edge fixedly connected with of disc 8 have been seted up through-hole 10 on otic placode 9, through-hole 10 and internal thread pipe 6 are to closing the coalescence silk and connect fixedly, and disc 8 is located the other end of disc casing 1, and disc 8 and disc casing 1 enclose into an inner chamber, have seted up primary shaft hole 11 at the central point of disc 8, and impeller 12 is located in the inner chamber, have secondary shaft hole 13 at the central point of impeller 12 one side fixedly connected with protruding exit tube 14 of secondary shaft hole 13 set up the axle keyway on the inner wall of protruding exit tube 14.

The device has the following structural characteristics: the disc-shaped shell 1 is used for accommodating the impeller 12 and carrying structures such as an output pipe 2, a suction pipe 4 and the like; the output pipe 2 is used for outputting the sucked fluid upwards; the groove body 3 is used for arranging a rib plate 5; the suction pipe 4 is used for fluid to flow into the disc-shaped shell 1; the ribbed plate 5 plays a role in reinforcing the structure of the suction pipe 4, so that the suction pipe is not easy to deform under the continuous impact of fluid; the internal thread pipe 6 is used for involuting with the through hole 10 on the ear plate 9 and then is screwed and fixed, so that the disc 8 and the disc-shaped shell 1 are fixed; the additional pipe 7 is sealed by a rubber plug in daily use, and when the interior of the pump shell is blocked, the rubber plug can be opened to be inserted into the water pipe to perform backflushing so as to break away the blocking objects; the disc 8 is used for closing the other end of the disc-shaped shell 1; the ear plate 9 is used for arranging the through hole 10 and plays a role in fixing; the through hole 10 is used for inserting a bolt; the first shaft hole 11 is used for a rotating shaft to pass through so as to realize the connection between the rotating shaft and the impeller 12, and in practical application, a mechanical seal or a packing seal is arranged between the first shaft hole 11 and the rotating shaft; the impeller 12 is driven by the rotating shaft to rotate so as to provide power for pumping; the second shaft hole 13 is also used for passing the rotating shaft, so that the rotating shaft extends into the protruding pipe 14; the inner wall of the protruding tube 14 is provided with a shaft key groove, and the rotating shaft is correspondingly provided with a shaft key, so that the rotating shaft and the impeller 12 are in a transmission relationship.

Example 2

A novel centrifugal pump shell is shown in figures 1-4 and comprises a disc-shaped shell 1, an output pipe 2, a groove body 3, a suction pipe 4, rib plates 5, an internal threaded pipe 6, an additional pipe 7, a disc 8, an ear plate 9, a through hole 10, a first shaft hole 11, an impeller 12, a second shaft hole 13 and a protruding pipe 14, wherein the output pipe 2 is fixedly connected to the side portion of the disc-shaped shell 1, one end of the disc-shaped shell 1 is closed, the groove body 3 is arranged on the outer side of the closed end of the disc-shaped shell 1, the suction pipe 4 is connected to the center position of the outer side of the closed end of the disc-shaped shell 1, the rib plates 5 are fixedly connected between the inner wall of the groove body 3 and the outer wall of the suction pipe 4, the internal threaded pipe 6 is fixedly connected to the outer wall of the side portion of the; a plurality of otic placodes 9 of edge fixedly connected with of disc 8 have been seted up through-hole 10 on otic placode 9, through-hole 10 and internal thread pipe 6 are to closing the coalescence silk and connect fixedly, and disc 8 is located the other end of disc casing 1, and disc 8 and disc casing 1 enclose into an inner chamber, have seted up primary shaft hole 11 at the central point of disc 8, and impeller 12 is located in the inner chamber, have secondary shaft hole 13 at the central point of impeller 12 one side fixedly connected with protruding exit tube 14 of secondary shaft hole 13 set up the axle keyway on the inner wall of protruding exit tube 14. Wherein, the axis of the first shaft hole 11 and the second shaft hole 13 are overlapped with each other. A rubber plug is inserted at the port of the additional pipe 7. The axis of the delivery tube 2 is perpendicular to the axis of the suction tube 4. There are 4 ribs 5, and the angle between every 2 adjacent ribs 5 is 90 deg..

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel centrifugal pump shell is characterized by comprising a disc-shaped shell (1), an output pipe (2), a groove body (3), a suction pipe (4), rib plates (5), an internal thread pipe (6), an additional pipe (7), a disc (8), lug plates (9), a through hole (10), a first shaft hole (11), an impeller (12), a second shaft hole (13) and a protruding pipe (14), wherein the output pipe (2) is fixedly connected to the side part of the disc-shaped shell (1), one end of the disc-shaped shell (1) is closed, the groove body (3) is arranged on the outer side of the closed end of the disc-shaped shell (1), the suction pipe (4) is connected to the central position of the outer side of the closed end of the disc-shaped shell (1), a plurality of rib plates (5) are fixedly connected between the inner wall of the groove body (3) and the outer wall of the suction pipe (4), and a plurality of internal, an additional pipe (7) is fixedly connected to the outer side of the closed end of the disc-shaped shell (1); at a plurality of otic placodes (9) of edge fixedly connected with of disc (8), seted up through-hole (10) on otic placode (9), through-hole (10) are fixed with internal thread pipe (6) to closing the doubling screw, and disc (8) are located the other end of disc casing (1), and disc (8) and disc casing (1) enclose into an inner chamber, put at the central point of disc (8) and seted up first shaft hole (11), and impeller (12) are located in the inner chamber, central point at impeller (12) puts and has second shaft hole (13) one side fixedly connected with protruding exit tube (14) of second shaft hole (13) the axle keyway has been seted up on the inner wall of protruding exit tube (14).

2. A new centrifugal pump casing according to claim 1, characterized in that the axis of the first shaft hole (11) and the second shaft hole (13) coincide with each other.

3. A new centrifugal pump casing according to claim 1, characterized in that a rubber plug is inserted at the port of the additional pipe (7).

4. A new centrifugal pump casing according to claim 1, characterized in that the axis of the outlet pipe (2) is perpendicular to the axis of the suction pipe (4).

5. A new centrifugal pump casing according to claim 1, characterized in that there are 4 ribs (5), the angle between every 2 adjacent ribs (5) being 90 °.