CN219345086U

CN219345086U - Horizontal double-suction centrifugal pump

Info

Publication number: CN219345086U
Application number: CN202223320857.0U
Authority: CN
Inventors: 谢超; 徐化林; 庄小云; 徐清林; 徐阳; 张力; 施爱民; 丁志银; 陈强
Original assignee: Huaqiang Chemical Group Co Ltd
Current assignee: Huaqiang Chemical Group Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-07-14
Anticipated expiration: 2032-12-05

Abstract

The utility model relates to a horizontal double-suction centrifugal pump, which comprises a pump body, a mounting component, a limiting component and a reinforcing component, wherein the pump body can be used for conveying fertilizer raw materials, the mounting component is arranged on the pump body, the limiting component is arranged in the mounting component and is abutted to the pump body, the reinforcing component is arranged between the mounting component and the pump body and is used for assisting in limiting the limiting component, the mounting component can be matched with a pump body bolt for mounting through the matching of the mounting component and the limiting component, the limiting component is arranged at a pump body connecting part, and then the reinforcing component is matched for fixing the pump body connecting part, so that the pump body is firmer, the shock resistance is improved, and the possibility of subsequent use leakage is reduced.

Description

Horizontal double-suction centrifugal pump

Technical Field

The utility model relates to the field of centrifugal pumps, in particular to a horizontal double-suction centrifugal pump.

Background

The double suction pump is an important form of centrifugal pump, its impeller has two suction inlets, and water is fed from two sides of impeller, and compared with single-stage single suction centrifugal pump, it has high efficiency, large flow rate and higher lift, but its volume is large, and is heavy, and is generally used for fixing operation, and is applicable to irrigation areas of hilly and plateau medium area, also applicable to aspects of water supply and drainage of factories, mines and cities, etc..

At present, the pump body of the horizontal double-suction centrifugal pump is of an upper split type and a lower split type, the pump body is connected and restarted in a connecting mode, and meanwhile, the upper split type and the lower split type are connected and fixed through bolts, but the connected bolts extend into the lower split type from top to bottom and are unstable, and in the process of factory assembly and transportation, the impact is possibly caused on the joints of the bolts, so that the subsequent use is caused to have the leakage condition.

Disclosure of Invention

Based on the above description, the utility model provides a horizontal double-suction centrifugal pump, which solves the problem that the connecting bolts extend into the lower split body from top to bottom and are unstable, so that impact is possibly caused to the connecting parts of the bolts in the process of delivery assembly and transportation, and further leakage is caused in the subsequent use.

The technical scheme for solving the technical problems is as follows:

a horizontal double-suction centrifugal pump comprises a pump body which can be used for conveying fertilizer raw materials:

the mounting assembly is arranged on the pump body;

the limiting assembly is arranged in the mounting assembly and is abutted against the pump body;

the reinforcing component is arranged between the mounting component and the pump body and is used for assisting in limiting the limiting component.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the mounting assembly comprises a protective cover symmetrically arranged on the pump body, a sealing part arranged between the protective cover and the pump body and a connecting part arranged on the protective cover.

Further, an installation cavity is arranged between the protective cover and the pump body, the sealing part is positioned in the installation cavity, and the sealing part is attached to the pump body.

Further, the limiting component is located in the mounting cavity and is attached to the protective cover and the sealing portion.

Furthermore, a plurality of mounting holes are formed in the protective cover, and the mounting holes are communicated with the mounting cavity.

Further, the reinforcing component comprises a rotating part arranged in the mounting hole and a fixing part arranged on the pump body.

Further, one end of the rotating part, which is close to the mounting hole, is clung to the limiting assembly, and one end of the rotating part, which is far away from the mounting hole, is arranged on the fixing part.

Further, a pressing plate abutted against the pump body is arranged on the protective cover.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

according to the utility model, the mounting assembly, the limiting assembly and the reinforcing assembly are arranged, and the mounting assembly can be matched with the pump body for bolt mounting through the matching of the mounting assembly and the limiting assembly, the limiting assembly is arranged at the pump body connection position, and then the reinforcing assembly is matched for fixing the pump body connection position, so that the pump body is more stable, the shock resistance is improved, and the possibility of subsequent use leakage is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a horizontal double suction centrifugal pump according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a mounting assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic view of a fixing portion according to an embodiment of the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a pump body; 2. a mounting assembly; 21. a protective cover; 22. a sealing part; 23. a connection part; 3. a limit component; 4. a reinforcement assembly; 41. a rotating part; 42. a fixing part; 5. and (5) pressing plates.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be appreciated that spatially relative terms such as "under … …," "under … …," "below," "under … …," "over … …," "above," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "under … …" and "under … …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

Referring to fig. 1-4, a horizontal double-suction centrifugal pump comprises a pump body 1, a mounting assembly 2, a limiting assembly 3 and a reinforcing assembly 4, wherein the pump body 1 can be used for conveying fertilizer raw materials, the mounting assembly 2 is arranged on the pump body 1, the limiting assembly 3 is arranged in the mounting assembly 2, the limiting assembly 3 is abutted to the pump body 1, the reinforcing assembly 4 is arranged between the mounting assembly 2 and the pump body 1, and the limiting assembly 3 is used for being assisted in limiting.

The pump body of the horizontal double-suction centrifugal pump based on the prior art adopts an upper split type and a lower split type, a connecting disc similar to a flange plate is arranged at the joint of the upper split type and the lower split type, a through connecting hole is formed in the connecting disc of the upper split type, a deep hole is formed in the connecting disc of the lower split type, the connecting hole is matched with the deep hole, and the connecting hole is fixedly connected with the matched bolt through the connecting disc and the upper split type and the lower split type.

Before the pump body 1 is connected in an up-down split mode, the mounting assembly 2 is arranged on the split mode from the lower cover to the pump body 1, the mounting assembly 2 is arranged on one end of the pump body 1, which is connected in an up-down split mode, is matched with the limiting assembly 3, limits the joint, meanwhile, is fixed on the pump body 1 by the reinforcing assembly 4, is connected in an up-down split mode, finally, the pump body 1 is turned into a bolt, firstly passes through the mounting assembly 2, and then enters into the upper-down split connecting disc of the pump body 1 to complete the connection, in such a mode, the pump body is more stable, the shock resistance is improved, and the possibility of subsequent use leakage is reduced.

Referring to fig. 1-4, the mounting assembly 2 includes a protecting cover 21 symmetrically disposed on the pump body 1, a sealing portion 22 disposed between the protecting cover 21 and the pump body 1, and a connecting portion 23 disposed on the protecting cover 21, wherein a mounting cavity is disposed between the protecting cover 21 and the pump body 1, the sealing portion 22 is disposed in the mounting cavity, and the sealing portion 22 is attached to the pump body 1.

The protection cover 21 of the installation assembly 2 covers the upper and lower split connection parts of the pump body 1 from top to bottom, so that the connection part 23 just corresponds to the threaded hole of the upper and lower split connection of the pump body 1, meanwhile, the sealing part 22 is attached to the tangent plane of the upper and lower split connection part of the pump body 1, then after the pump body is connected with the upper and lower split parts through bolts, the bolts firstly pass through the connection part 23 and then enter the upper and lower split connection part of the pump body 1, and after the pump body 1 is connected with the bolts, the protection cover 21 is limited on the pump body 1 at the same time.

Based on the above, the sealing portion 22 is preferably a sealing rubber ring, the connecting portion 23 is a prefabricated hole, and the sealing portion 22 protects the pump body 1 from fluid leakage at the connecting portion.

Further, the limiting component 3 is located in the mounting cavity, and the limiting component 3 is attached to the protective cover 21 and the sealing portion 22.

After the sealing part 22 is attached to the joint of the pump body 1, the limiting component 3 is additionally arranged between the protective cover 21 and the sealing part 22, the sealing part 22 is extruded by the limiting component 3, and the joint of the sealing part 22 and the pump body 1 is tightly contacted, so that the sealing effect of the sealing part 22 on the joint of the pump body 1 is further improved.

Further, the protective cover 21 is provided with a pressure plate 5 that abuts against the pump body 1.

Since the pump body 1 is generally in a shape of a disc which is arched upwards, the protective cover 21 may be limited by the curved surface of the pump body 1, and thus, the embodiment is formed by arranging a pair of protective covers 21 and integrally connecting the protective covers 21 to the pump body 1 through the pressing plates 5, and the pressing plates 5 can be arranged at two sides of the pump body 1 in cooperation with the rotating shaft of the pump body 1 after the protective covers 21 cover the pump body 1.

In the prior art, the joint of the rotating shaft and the pump body of the horizontal double-suction centrifugal pump can adopt packing seal or mechanical seal, and because the traditional packing seal structure is complex, under the condition that the rotating shaft and the pump body fail, the packing seal is troublesome to maintain and high in maintenance cost, and the sealing effect is good through the mechanical seal, the structure is simple, and the later maintenance can be facilitated.

Based on the above, in the case that the pump body 1 adopts mechanical seal, after the protecting cover 21 is fixed at the upper and lower split connection position of the pump body 1 through the connecting portion 23, the pressing plate 5 integrally connected with the protecting cover 21 can just pass through the rotating shaft and keep fit with the gland section of the mechanical seal, so that after the protecting cover 21 is fixed, the pressing plate 5 is indirectly limited, the gland of the mechanical seal can be limited, and the sealing performance of the connecting position of the rotating shaft and the pump body is enhanced by the mechanical seal.

Referring to fig. 1-4, the protection cover 21 is provided with a plurality of mounting holes, the mounting holes are communicated with the mounting cavity, the reinforcing component 4 comprises a rotating portion 41 arranged in the mounting holes and a fixing portion 42 arranged on the pump body 1, one end of the rotating portion 41, which is close to the mounting holes, is tightly attached to the limiting component 3, and one end of the rotating portion 41, which is far away from the mounting holes, is arranged on the fixing portion 42.

In this embodiment, the rotating portion 41 for connecting the reinforcing component 4 is disposed on the protecting cover 21, the fixing portion 42 for fixing the rotating portion 41 is disposed on the pump body 1, and the rotating track of the rotating portion 41 is corresponding to the rotating track of the rotating portion 41, when the rotating portion 41 rotates downward, the rotating portion 41 is blocked by the fixing portion 42, and then the rotating portion 41 is pressed down forcefully, the rotating portion 41 is clamped onto the fixing portion 42, so that a downward acting force is formed, acting on the protecting cover 21, and the connecting portion of the pump body 1 is reinforced.

After the rotation of the rotating part 41 is stopped, the rotating part 41 enters the mounting hole and is pressed in the limiting component 3, so that the limiting component 3 is pressed and simultaneously acts on the sealing part 22, and the contact connection between the sealing part 22 and the pump body 1 can be further enhanced.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A horizontal double-suction centrifugal pump, which comprises a pump body (1) for conveying fertilizer raw materials, and is characterized in that,

a mounting assembly (2) provided on the pump body (1);

the limiting assembly (3) is arranged in the mounting assembly (2) and is abutted against the pump body (1);

the reinforcing component (4) is arranged between the mounting component (2) and the pump body (1) and is used for assisting in limiting the limiting component (3).

2. The horizontal double suction centrifugal pump according to claim 1, wherein the mounting assembly (2) comprises a protective cover (21) symmetrically arranged on the pump body (1), a sealing part (22) arranged between the protective cover (21) and the pump body (1), and a connecting part (23) arranged on the protective cover (21).

3. The horizontal double suction centrifugal pump according to claim 2, wherein a mounting cavity is arranged between the protective cover (21) and the pump body (1), the sealing part (22) is positioned in the mounting cavity, and the sealing part (22) is attached to the pump body (1).

4. A horizontal double suction centrifugal pump according to claim 3, wherein the limiting assembly (3) is located in the mounting cavity, and the limiting assembly (3) is attached to the protective cover (21) and the sealing portion (22).

5. The horizontal double suction centrifugal pump according to claim 4, wherein the protective cover (21) is provided with a plurality of mounting holes, and the mounting holes are communicated with the mounting cavity.

6. The horizontal double suction centrifugal pump according to claim 5, wherein the reinforcement assembly (4) comprises a rotating part (41) arranged in the mounting hole and a fixing part (42) arranged on the pump body (1).

7. The horizontal double suction centrifugal pump according to claim 6, wherein one end of the rotating part (41) close to the mounting hole is tightly attached to the limiting component (3), and one end of the rotating part (41) far away from the mounting hole is arranged on the fixing part (42).

8. A horizontal double suction centrifugal pump according to claim 3, characterized in that the protective cover (21) is provided with a pressure plate (5) abutting against the pump body (1).