CN216407174U

CN216407174U - Centrifugal pump

Info

Publication number: CN216407174U
Application number: CN202122510778.5U
Authority: CN
Inventors: 王迎春
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-29
Anticipated expiration: 2031-10-19

Abstract

The utility model is suitable for the field of centrifugal pumps, and provides a centrifugal pump which comprises a pump body front cover, a pump body rear cover, a water inlet joint, a water outlet joint, a pump body connector and an impeller, wherein the pump body front cover and the pump body rear cover are assembled and buckled to form a pump body inner cavity; one end of the pump body connector is arranged on the pump body rear cover; the impeller is arranged in the inner cavity of the pump body; the pump body front cover and the pump body rear cover are made of engineering plastics. The front cover and the rear cover of the pump body are made of engineering plastics and have certain flexibility and contractility, so that the pump body is not prone to frost cracking in winter, can run for a long time and reduces loss.

Description

Centrifugal pump

Technical Field

The utility model belongs to the field of centrifugal pumps, and particularly relates to a centrifugal pump.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

Therefore, the pump body of the centrifugal pump needs to be filled with water before working, after the work is completed, accumulated water is stored in the pump body, the existing pump body is made of cast iron, and frost cracking often occurs in winter, so that the pump body is damaged, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

An object of an embodiment of the present invention is to provide a centrifugal pump, which aims to solve the problems in the background art.

The embodiment of the utility model is realized in such a way that the centrifugal pump comprises a pump body front cover, a pump body rear cover, a water inlet joint, a water outlet joint, a pump body connector and an impeller, wherein the pump body front cover and the pump body rear cover are assembled and buckled to form a pump body inner cavity; one end of the pump body connector is arranged on the pump body rear cover; the impeller is arranged in the inner cavity of the pump body; the pump body front cover and the pump body rear cover are made of engineering plastics.

Preferably, the other end of the pump body connector is connected with a motor, the impeller is installed at the end part of a main shaft of the motor, and a mechanical sealing waterproof ring is installed between the motor and the centrifugal pump.

Preferably, the joint of the pump body front cover and the pump body rear cover is provided with a pump body bin sealing edge, and the inside of the pump body bin sealing edge is completely attached to the pump body front cover and the pump body rear cover.

Preferably, the material of the pump body bin sealing edge is elastic plastic.

Preferably, the engineering plastic is PA 66.

The centrifugal pump provided by the embodiment of the utility model comprises a pump body front cover, a pump body rear cover, a water inlet joint, a water outlet joint, a pump body connector and an impeller, wherein the pump body front cover and the pump body rear cover are assembled and buckled to form a pump body inner cavity; one end of the pump body connector is arranged on the pump body rear cover; the impeller is arranged in the inner cavity of the pump body; the pump body front cover and the pump body rear cover are made of engineering plastics. The front cover and the rear cover of the pump body are made of engineering plastics and have certain flexibility and contractility, so that the pump body is not prone to frost cracking in winter, can run for a long time and reduces loss.

Drawings

FIG. 1 is an assembly view of a centrifugal pump provided in accordance with an embodiment of the present invention;

FIG. 2 is a front elevational view of an impeller of a centrifugal pump provided in accordance with an embodiment of the present invention;

fig. 3 is a front view of a seal edge of a pump body bin of the centrifugal pump according to the embodiment of the present invention.

In the drawings: 1-pump body rear cover; 2-pump body front cover; 3-water outlet joint; 4-pump body connector; 5-an impeller; 6-sealing and sealing the edge of the pump body bin; and 7-water inlet joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 and fig. 2, a structure diagram of a centrifugal pump provided in an embodiment is shown, the centrifugal pump includes a pump body front cover 2, a pump body rear cover 1, a water inlet joint 3, a water outlet joint 7, a pump body connector 4 and an impeller 5, the pump body front cover 2 and the pump body rear cover 1 are assembled and fastened to form a pump body inner cavity, the water inlet interface 3 is installed on the pump body front cover 2, the water outlet joint 7 is arranged at a water outlet position after the pump body front cover 2 and the pump body rear cover 1 are fastened, the water outlet joint 7 is directly designed to be integrated with the pump body front cover 2 and the pump body rear cover 1, and the complete water outlet joint 7 is formed by fastening the pump body front cover 2 and the pump body rear cover 1, on one hand, the installation relationship between the pump body front cover 2 and the pump body rear cover 1 can be verified, and on the other hand, the installation steps are also reduced; one end of the pump body connector 4 is arranged on the pump body rear cover 1; the impeller 5 is arranged in the inner cavity of the pump body; the pump body front cover 2 and the pump body rear cover 1 are made of engineering plastics. The engineering plastic is PA 66.

In a condition of this embodiment, the other end and the motor of pump body connector 4 are connected, and impeller installation is at motor spindle nose portion, install the waterproof circle of mechanical seal between motor and the centrifugal pump, prevent that the moisture in the pump body inner chamber from leaking the motor side, guarantee the safety of motor operation.

In this embodiment, the pump body front cover 2 and the pump body rear cover 1 are made of engineering plastics and have certain flexibility and contractibility, so that the pump body front cover and the pump body rear cover are not prone to frost cracking in winter, can be operated for a long time, and reduces loss.

As shown in fig. 1 and 3, in one embodiment, a pump body chamber sealing edge 6 is installed at a joint of the pump body front cover 2 and the pump body rear cover 1, and an inner portion of the pump body chamber sealing edge 6 is completely attached to the pump body front cover 2 and the pump body rear cover 1. The pump body bin sealing edge 6 is made of elastic plastic. Such as rubber, silicone, etc. The pump body bin sealing edge 6 is additionally arranged, so that the pump body bin is prevented from being leaked, the pumping pressure of the inner cavity of the pump body can be well maintained, and the working efficiency of the centrifugal pump is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A centrifugal pump comprises a pump body front cover, a pump body rear cover, a water inlet joint, a water outlet joint, a pump body connector and an impeller, wherein the pump body front cover and the pump body rear cover are assembled and buckled to form a pump body inner cavity; one end of the pump body connector is arranged on the pump body rear cover; the impeller is arranged in the inner cavity of the pump body; the pump body front cover and the pump body rear cover are made of engineering plastics.

2. The centrifugal pump of claim 1, wherein the other end of the pump body connector is connected with a motor, the impeller is installed at the end part of a main shaft of the motor, and a mechanical sealing waterproof ring is installed between the motor and the centrifugal pump.

3. The centrifugal pump of claim 1, wherein a pump body bin sealing edge is installed at the joint of the pump body front cover and the pump body rear cover, and the inside of the pump body bin sealing edge is completely attached to the pump body front cover and the pump body rear cover.

4. The centrifugal pump of claim 3, wherein the pump body chamber seal edge is made of an elastic plastic.

5. The centrifugal pump of claim 1, wherein said engineering plastic is PA 66.