CN219197718U

CN219197718U - Ceramic pump shell

Info

Publication number: CN219197718U
Application number: CN202320271626.0U
Authority: CN
Inventors: 李司春; 王在峰; 谢义乐; 李芳�; 安丽; 王乐
Original assignee: Shandong Zhangqiu Blower Co Ltd
Current assignee: Shandong Zhangqiu Blower Co Ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-06-16
Anticipated expiration: 2033-02-21

Abstract

The utility model belongs to the technical field of ceramic slag slurry pump shells, and particularly relates to a ceramic pump shell, which comprises a pump body, a pump cover and a bolt and nut connecting pair; the outer edge of the main body of the pump body is fixedly provided with a first coaming, and the outer edge of the main body of the pump cover is fixedly provided with a second coaming; the first coaming is provided with a plurality of first mounting holes, the second coaming is provided with a plurality of second mounting holes, and the first mounting holes correspond to the second mounting holes in position; the bolts sequentially pass through the first mounting hole and the second mounting hole; a sealing ring is also arranged between the pump body and the pump cover; the beneficial technical effects of the utility model are as follows: (1) The arrangement of the first coaming and the second coaming enables the pump body and the pump cover of the pump shell to be uniformly connected by adopting a plurality of bolts, and at least two bolt-nut connection pairs are arranged between adjacent reinforcing ribs, so that the connection strength and the stress uniformity are improved; (2) And a sealing ring is further arranged between the pump body and the pump cover, so that the sealing performance of the pump shell is greatly improved, and leakage of slurry is prevented.

Description

Ceramic pump shell

Technical Field

The utility model belongs to the technical field of ceramic slag slurry pump shells, and particularly relates to a ceramic pump shell.

Background

Conventionally, a slurry pump is a device for converting electric energy into kinetic energy and potential energy of a medium by a machine that increases the energy of a solid-liquid mixed medium by centrifugal force (rotation of an impeller of the pump). The method is mainly applicable to: the fields of industries such as mines, metallurgy, chemical industry, building materials, petroleum and the like.

The ceramic slurry pump is a centrifugal slurry pump with ceramic material as the overflow part, and the ceramic material is silicon carbide and silicon nitride as the main materials. Because the silicon nitride combined silicon carbide ceramic sheath used by the ceramic slurry pump has the defects of air holes and the like, the pump body and the pump cover of the original pump shell structure are only provided with connecting bolts (shown in fig. 5 and 6) on a plurality of bosses, the connecting strength is lower, the stress is uneven, and the leakage and the fracture of the pump shell are easy to cause.

Disclosure of Invention

The utility model provides a ceramic pump shell aiming at the problem that the pump shell of the ceramic slurry pump is easy to leak and break.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the ceramic pump shell comprises a pump body, a pump cover and a bolt and nut connecting pair, wherein the bolt and nut connecting pair comprises a bolt and a nut; the outer edge of the main body of the pump body is fixedly provided with a first coaming, and the outer edge of the main body of the pump cover is fixedly provided with a second coaming; the first coaming is provided with a plurality of first mounting holes, the second coaming is provided with a plurality of second mounting holes, and the positions of the first mounting holes and the second mounting holes correspond to each other; the bolts sequentially pass through the first mounting hole and the second mounting hole; and a sealing ring is also arranged between the pump body and the pump cover.

Preferably, one side of the pump body close to the pump cover is provided with an annular groove, or one side of the pump cover close to the pump body is provided with an annular groove; the sealing ring is arranged in the annular groove.

Preferably, the sealing ring is a fluororubber sealing ring.

Preferably, the cross sections of the first coaming and the second coaming are rectangular with chamfers, and the widths of the first coaming and the second coaming are the same.

Preferably, a plurality of reinforcing ribs are respectively and fixedly arranged on the outer surfaces of the pump body and the pump cover; at least two bolt-nut connection pairs are arranged between the adjacent reinforcing ribs.

Preferably, a ceramic sheath is mounted inside the pump casing.

Compared with the prior art, the utility model has the advantages and positive effects that:

compared with the prior art, the ceramic pump shell has the advantages that (1) the coaming I is fixedly arranged on the outer edge of the main body of the pump body, and the coaming II is fixedly arranged on the outer edge of the main body of the pump cover; the first coaming is provided with a plurality of first mounting holes, the second coaming is provided with a plurality of second mounting holes, and the first mounting holes correspond to the second mounting holes in position; the bolts sequentially pass through the first mounting hole and the second mounting hole; according to the technical scheme, the pump body and the pump cover of the pump shell can be uniformly connected by adopting a plurality of bolts, and at least two bolt-nut connection pairs are arranged between adjacent reinforcing ribs, so that the connection strength is improved, and the stress uniformity is improved;

(2) And a sealing ring is further arranged between the pump body and the pump cover, so that the sealing performance of the pump shell is greatly improved, and leakage of slurry is prevented.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description of the embodiments will briefly describe the drawings that are required to be used in the description:

figure 1 is a schematic view of a ceramic pump housing of the present utility model,

figure 2 is a longitudinal cross-sectional view of a ceramic pump casing of the present utility model,

figure 3 is a schematic view of a seal ring in a ceramic pump housing of the present utility model,

figure 4 is a schematic view of a pump body of the present utility model,

figure 5 is a schematic view of a ceramic pump casing of the prior art,

fig. 6 is a longitudinal cross-sectional view of a ceramic pump casing of the prior art.

Reference numerals illustrate:

1-ceramic sheath, 2-pump body, 3-pump cover, 4-bolt and nut connection pair, 5-sealing ring, 6-reinforcing rib, 7-coaming I, 8-coaming II.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Example 1

The present utility model will be further described with reference to fig. 1 to 6, and as shown in fig. 5 and 6, the ceramic pump housing includes a pump body 2, a pump cover 3, and a bolt-nut coupling pair 4, and the bolt-nut coupling pair 4 includes a bolt and a nut.

As shown in fig. 1-4, a first coaming 7 is fixedly arranged on the outer edge of the main body of the pump body 2, and a second coaming 8 is fixedly arranged on the outer edge of the main body of the pump cover 3; a first mounting hole is formed in the first coaming 7, a second mounting hole is formed in the second coaming 8, and the first mounting hole corresponds to the second mounting hole in position; the bolts sequentially pass through the first mounting hole and the second mounting hole.

As shown in fig. 2 and 3, a seal ring 5 is also installed between the pump body 2 and the pump cover 3. An annular groove is formed in one side, close to the pump cover 3, of the pump body 2, or an annular groove is formed in one side, close to the pump body 2, of the pump cover 3; the sealing ring 5 is arranged in the annular groove.

The sealing ring 5 is a fluororubber sealing ring.

As shown in fig. 2, the cross sections of the first coaming 7 and the second coaming 8 are rectangular with chamfers, and the widths of the first coaming 7 and the second coaming 8 are the same.

As shown in fig. 1 and 2, a plurality of reinforcing ribs 6 are respectively and fixedly arranged on the outer surfaces of the pump body 2 and the pump cover 3; at least two bolt-nut connection pairs 4 are arranged between the adjacent reinforcing ribs 6.

As shown in fig. 1, a ceramic sheath 1 is mounted inside the pump casing.

Example 2

The difference between this embodiment and embodiment 1 is that: an annular groove is formed in one side, close to the pump body 2, of the pump cover 3; the sealing ring 5 is arranged in the annular groove.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above-mentioned embodiments according to the technical substance of the present utility model are still within the protection scope of the technical solution of the present utility model.

Claims

1. The ceramic pump shell comprises a pump body (2), a pump cover (3) and a bolt and nut connection pair (4), wherein the bolt and nut connection pair (4) comprises a bolt and a nut, and is characterized in that a first coaming (7) is fixedly arranged on the outer edge of the main body of the pump body (2), and a second coaming (8) is fixedly arranged on the outer edge of the main body of the pump cover (3); a plurality of first mounting holes are formed in the first coaming (7), a plurality of second mounting holes are formed in the second coaming (8), and the first mounting holes correspond to the second mounting holes in position; the bolts sequentially pass through the first mounting hole and the second mounting hole;

a sealing ring (5) is further arranged between the pump body (2) and the pump cover (3).

2. The ceramic pump shell according to claim 1, wherein an annular groove is formed on one side of the pump body (2) close to the pump cover (3), or an annular groove is formed on one side of the pump cover (3) close to the pump body (2); the sealing ring (5) is arranged in the annular groove.

3. Ceramic pump housing according to claim 2, characterized in that the sealing ring (5) is a fluororubber sealing ring.

4. A ceramic pump casing according to any one of claims 1 to 3, wherein the cross section of the first and second coamings (7, 8) is rectangular with chamfers, and the widths of the first and second coamings (7, 8) are the same.

5. The ceramic pump shell according to claim 1, wherein a plurality of reinforcing ribs (6) are respectively fixedly arranged on the outer surfaces of the pump body (2) and the pump cover (3); at least two bolt-nut connection pairs (4) are arranged between the adjacent reinforcing ribs (6).

6. Ceramic pump casing according to claim 1 or 5, characterized in that the inside of the casing is fitted with a ceramic sheath (1).