CN221054020U

CN221054020U - Centrifugal pump with amortization structure

Info

Publication number: CN221054020U
Application number: CN202323168257.1U
Authority: CN
Inventors: 付炜; 孙娟; 高红丽
Original assignee: Haozhuo Pump Hangzhou Co ltd
Current assignee: Haozhuo Pump Hangzhou Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-05-31
Anticipated expiration: 2033-11-22

Abstract

The utility model discloses a centrifugal pump with a silencing structure, which comprises a driving motor, a pump body and a silencing mechanism, wherein the driving motor is arranged on the pump body; the silencing mechanism comprises a cover body, and the cover body is covered outside the pump body; the inner wall of the cover body is paved with silencing cotton; a plurality of silencing chambers are formed on the end face of the silencing cotton, the silencing chambers encircle the pump body, and each silencing chamber is provided with a plurality of silencing holes facing the pump body; and a plurality of guide plates are arranged in each silencing chamber. The pump body is provided with the silencing mechanism, and noise generated between the impeller and the fluid is conducted and absorbed through a plurality of silencing chambers in the silencing mechanism, so that noise pollution is reduced.

Description

Centrifugal pump with amortization structure

Technical Field

The present utility model relates to a centrifugal pump, and more particularly, to a centrifugal pump having a noise reducing structure.

Background

The centrifugal pump is used for conveying clear water and other liquid with physical and chemical properties similar to that of clear water, and is suitable for industrial and urban water supply and drainage, pressurization and water supply of high-rise buildings, garden spray irrigation, fire control pressurization, remote conveying, heating and ventilation refrigeration circulation, cold and hot water circulation pressurization of bathrooms and the like, and equipment matching.

When the existing centrifugal pump works, fluid is conveyed through the impeller, and in the conveying process, as the silencing structure is not arranged outside the pump body of the existing centrifugal pump, noise can be generated when the impeller is always contacted with the fluid, and meanwhile, larger noise can be generated when the impeller rotates, so that noise pollution is easy to cause.

Disclosure of utility model

The utility model aims to provide a centrifugal pump with a silencing structure, which solves the problem that noise pollution is easy to cause when the silencing structure is not arranged outside the pump body of the existing centrifugal pump.

The technical aim of the utility model is realized by the following technical scheme:

a centrifugal pump with a silencing structure comprises a driving motor, a pump body and a silencing mechanism;

The silencing mechanism comprises a cover body, and the cover body is covered outside the pump body; the inner wall of the cover body is paved with silencing cotton; a plurality of silencing chambers are formed on the end face of the silencing cotton, the silencing chambers encircle the pump body, and each silencing chamber is provided with a plurality of silencing holes facing the pump body; and a plurality of guide plates are arranged in each silencing chamber.

Preferably, each of the silencing chambers is composed of a supporting part, a conducting part and a surface layer;

the supporting part is arranged on the end face of the silencing cotton;

The conducting part is arranged on the supporting part, and the upper end face and the lower end face of the conducting part are respectively contacted with the surface layer and the outer surface of the pump body;

The surface layer is arranged on the supporting part and is positioned below the conducting part; and the silencing hole is arranged on the surface layer.

Preferably, the conductive portion forms a noise collection region with the facing layer.

Preferably, the surface layer has a curved surface shape.

Preferably, the guide plates are arranged on the silencing cotton at intervals and positioned on two sides of the silencing hole.

Compared with the prior art, the application has the following beneficial effects: the pump body is provided with the silencing mechanism, and noise generated between the impeller and the fluid is conducted and absorbed through a plurality of silencing chambers in the silencing mechanism, so that noise pollution is reduced.

Drawings

FIG. 1 is a schematic perspective view of an embodiment;

fig. 2 is a schematic cross-sectional structure of an embodiment.

Reference numerals: a drive motor 1; pump body 2; a cover 3; silencing cotton 4; a sound deadening chamber 5; a sound deadening hole 6; a guide plate 7; a support 8; a conductive portion 9; a facing layer 10; a noise collection region 11; silencing mechanism a.

Detailed Description

The following description is only of the preferred embodiments of the present utility model, and the scope of the present utility model should not be limited to the examples, but should be construed as falling within the scope of the present utility model. It should also be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present utility model are intended to be comprehended within the scope of the present utility model.

As shown in fig. 1 to 2, a centrifugal pump with a silencing structure comprises a driving motor 1, a pump body 2 and a silencing mechanism a; the silencing mechanism a comprises a cover body 3, and the cover body 3 is covered outside the pump body 2; the inner wall of the cover body 3 is paved with silencing cotton 4; a plurality of silencing chambers 5 are formed on the end face of the silencing cotton 4, the silencing chambers 5 encircle the pump body 2, and a plurality of silencing holes 6 facing the pump body 2 are formed in each silencing chamber 5; and a plurality of guide plates 7 are arranged in each silencing chamber 5, and the guide plates 7 are arranged on the silencing cotton 4 at intervals and positioned on two sides of the silencing holes 6, so that noise conduction is facilitated.

As an embodiment of the present application, referring to fig. 2, each of the silencing chambers 5 is composed of a supporting portion 8, a conducting portion 9, and a facing layer 10; the supporting part 8 is arranged on the end surface of the silencing cotton 4; the conducting part 9 is mounted on the supporting part 8, and the upper end surface and the lower end surface of the conducting part 9 are respectively contacted with the surface layer 10 and the outer surface of the pump body 2; the surface layer 10 is arranged on the supporting part 8 and is positioned below the conducting part 9; and the sound deadening hole 6 is provided on the face layer 10.

In this embodiment, the conducting part 9 contacts with the outer wall of the pump body to conduct the generated noise to the silencing chamber 5 and enter the silencing chamber 5 from the silencing hole 6, and the noise can be quickly absorbed by the silencing cotton 4 when being guided by the guide plate 7 in the transmission process, so that the noise generated during the operation of the pump body is effectively reduced.

As an embodiment of the present application, referring to fig. 2, the conducting portion 9 and the surface layer 10 form a noise collecting area 11, which can collect noise generated by rotation of the impeller and noise generated between the impeller and the fluid well, and collect the noise into the noise reducing chamber 5 through the noise reducing hole 6, so as to be absorbed by the noise reducing cotton 4.

As an embodiment of the present application, referring to fig. 2, in order to improve the reflection effect of sound, the surface layer 10 is curved, and reflects the noise multiple times and performs noise reduction through the noise reduction chamber 5, so as to effectively reduce the noise generated by the pump body during the operation.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

Claims

1. The centrifugal pump with the silencing structure is characterized by comprising a driving motor (1), a pump body (2) and a silencing mechanism (a);

The silencing mechanism (a) comprises a cover body (3), and the cover body (3) is covered outside the pump body (2); the inner wall of the cover body (3) is paved with silencing cotton (4); a plurality of silencing chambers (5) are formed on the end face of the silencing cotton (4), the silencing chambers (5) encircle the pump body (2), and a plurality of silencing holes (6) facing the pump body (2) are formed in each silencing chamber (5); and a plurality of guide plates (7) are arranged in each silencing chamber (5).

2. A centrifugal pump with a sound-deadening structure according to claim 1, characterized in that each sound-deadening chamber (5) is constituted by a support (8), a conducting part (9) and a facing layer (10);

the supporting part (8) is arranged on the end face of the silencing cotton (4);

The conducting part (9) is arranged on the supporting part (8), and the upper end surface and the lower end surface of the conducting part (9) are respectively contacted with the surface layer (10) and the outer surface of the pump body (2);

The surface layer (10) is arranged on the supporting part (8) and is positioned below the conducting part (9); and the sound attenuation holes (6) are arranged on the surface layer (10).

3. A centrifugal pump with sound-damping structure according to claim 2, characterized in that the conducting part (9) forms a noise collecting zone (11) with the surface layer (10).

4. Centrifugal pump with sound-deadening structure according to claim 2, characterized in that the surface layer (10) is curved.

5. Centrifugal pump with a sound deadening structure according to claim 1, characterized in that the guide plates (7) are arranged at intervals on the sound deadening cotton (4) and on both sides of the sound deadening hole (6).