CN210265162U

CN210265162U - Centrifugal pump

Info

Publication number: CN210265162U
Application number: CN201921181827.1U
Authority: CN
Inventors: 陈洪亮
Original assignee: Zhejiang Sangtian Fluid Automatic Control Equipment Co Ltd
Current assignee: Zhejiang Sangtian Fluid Automatic Control Equipment Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-07
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a centrifugal pump, which comprises a pump body, the inlet end and the outlet end of the pump body are all fixed through inlet tube and the play water piping connection of locking mechanism with corresponding, the pump body pass through the bolt and be connected with the pump cover fixedly, the one end of pump cover is passed through the flange and is connected with the motor, pump shaft on the motor pass the pump cover and with the inside impeller fixed connection of the pump body, the outside of pump shaft just is located and overlaps in proper order between the pump body and the pump cover and is equipped with mechanical seal rotating ring and mechanical seal stationary ring, the outside cover that the pump shaft just is located the pump cover is equipped with the tight circle. The utility model discloses in, realize the sealing function under the sound dual mode through mechanical seal rotating ring and the quiet ring of mechanical seal, during tight circle and tight cover can further place the rivers that leak in the pump cover and go into the motor simultaneously to improved the life of motor, the internal diameter grow of pump body water outlet end simultaneously can suitably reduce through the rivers velocity of flow here, has reduced the impact to the outlet pipe, has improved the stability of connecting.

Description

Centrifugal pump

Technical Field

The utility model relates to a pumping installations field specifically is a centrifugal pump.

Background

A centrifugal pump is a pump that transports a liquid by centrifugal force generated when an impeller rotates, and is generally composed of an impeller, a pump body, a pump shaft, a bearing, a seal, a stuffing box, and the like.

The centrifugal pump has high rotating speed and large output, so that the joint of a pipeline and a pump body is easy to leak, normal conveying is influenced, and meanwhile, the joint between the pump cover and the pump shaft is easy to leak, so that the service life of the centrifugal pump is influenced.

To this end, we propose a centrifugal pump to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centrifugal pump to solve and to provide in the above-mentioned background art because the rotational speed is high to exert oneself big, lead to the pipeline to touch with being connected of the pump body and reveal easily, influence normal transport, and the junction between pump cover and the pump shaft leaks easily, thereby influences the life's of centrifugal pump problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a centrifugal pump, includes the pump body, the inlet end and the outlet end of the pump body are all fixed through inlet tube and the play water piping connection that locking mechanism corresponds, the passing through bolt and the pump cover of the pump body are connected fixedly, the one end of pump cover is passed through the flange and is connected with the motor, pump shaft on the motor pass the pump cover and with the inside impeller fixed connection of the pump body, the outside of pump shaft just is located and overlaps in proper order between the pump body and the pump cover and is equipped with mechanical seal rotating ring and mechanical seal stationary ring, the outside cover that the pump shaft just is located the pump cover is equipped with the tight circle, and the tight circle is close.

As a further description of the above technical solution:

locking mechanism includes the clamp and by wanting the pad, the outside of intaking end and play water end on the pump body is all established to inlet tube and outlet pipe, the clamp is all established in the outside of inlet tube and outlet pipe, and is located the part of overlapping on intaking end and the play water end on inlet tube and the outlet pipe and the pump body.

As a further description of the above technical solution:

the one end department that the tight circle kept away from the motor is provided with the tight cover, the tight cover passes through bolt and tight circle fixed connection.

As a further description of the above technical solution:

the water outlet end of the pump body is of a conical structure, and the inner diameter of the water outlet end far away from the pump body is larger than that of the water outlet end close to the pump body.

As a further description of the above technical solution:

the motor is located the inside of motor guard shield, and the bottom symmetry of motor installs the pump foot, the motor passes through the pump foot and is connected fixedly with the inboard bottom of motor guard shield.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, realize the sealing function under the sound dual mode through mechanical seal rotating ring and the quiet ring of mechanical seal, tight circle and tight cover can further place the rivers that leak in the pump cover and go into the motor simultaneously to improved the life of motor, the internal diameter grow of pump body water outlet end can suitably reduce through the rivers velocity of flow here simultaneously, thereby reduce the impact to the outlet pipe, improved the stability of connecting.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention.

In the figure: 1. a pump body; 2. a locking mechanism; 201. clamping a hoop; 202. a connecting pad; 3. a water inlet pipe; 4. a water outlet pipe; 5. a pump cover; 6. a motor; 7. a pump shaft; 8. an impeller; 9. a mechanical seal movable ring; 10. a mechanical seal stationary ring; 11. tightening a ring; 12. tightening the sleeve; 13. an O-shaped sealing ring; 14. a motor shield; 15. and a pump foot.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment: the utility model provides a centrifugal pump, which comprises a pump body 1, the end of intaking of the pump body 1 all is connected fixedly with the inlet tube 3 and the outlet pipe 4 that correspond through locking mechanism 2 with the play water end, the pump body 1 pass through the bolt and be connected fixedly with pump cover 5, the one end of pump cover 5 is passed through the flange and is connected with motor 6, pump shaft 7 on the motor 6 pass pump cover 5 and with the inside impeller 8 fixed connection of the pump body 1, the outside of pump shaft 7 just is located and overlaps in proper order between the pump body 1 and the pump cover 5 and is equipped with mechanical seal rotating ring 9 and mechanical seal stationary ring 10, pump shaft 7 just is located the outside cover of pump cover 5 and is equipped with tight loop 11, and tight loop 11 is close to the one end department at motor 6 place, realize the sealing of pump shaft 7 under sound two kinds of states through mechanical seal rotating ring 9 and mechanical seal stationary.

Specifically, as shown in fig. 1, the locking mechanism 2 includes a clamp 201 and a pad 202, the water inlet pipe 3 and the water outlet pipe 4 are both sleeved on the outside of the water inlet end and the water outlet end of the pump body 1, the clamp 201 is both sleeved on the outside of the water inlet pipe 3 and the water outlet pipe 4 and is located at the overlapped part of the water inlet end and the water outlet end of the water inlet pipe 3 and the water outlet pipe 4 and the pump body 1, and the water inlet end and the water outlet end of the water inlet pipe 3 and the water outlet pipe 4 are fixedly connected to the water inlet end and.

Specifically, as shown in fig. 1, a tight sleeve 12 is arranged at one end of the tight ring 11 far away from the motor 6, the tight sleeve 12 is fixedly connected with the tight ring 11 through a bolt, the tight sleeve 12 is matched with the tight ring 11, flowing water is prevented from leaking into the motor 6, and the service life of the motor 6 is prolonged.

Specifically, as shown in fig. 1, the edges of the pump body 1 and the pump cover 5 are engaged, and an O-ring 13 is mounted at the engaged position, so as to further achieve leakage prevention.

Specifically, as shown in fig. 1, the water outlet end of the pump body 1 is a conical structure, and the inner diameter of the water outlet end far away from the pump body 1 is larger than the inner diameter of the water outlet end close to the pump body 1, and the flow velocity of water flow passing through the position is properly reduced due to the enlarged inner diameter, so that the impact on the water outlet pipe 4 is reduced, and the connection stability is improved.

Specifically, as shown in fig. 1, the motor 6 is located inside the motor shield 14, the pump legs 15 are symmetrically installed at the bottom of the motor 6, the motor 6 is fixedly connected with the inner bottom of the motor shield 14 through the pump legs 15, and the motor 6 is located inside the motor shield 14, so that the motor 6 is sufficiently protected.

The working principle is as follows: when the water pump is used, the motor 6 works, the impeller 8 is driven to rotate through the pump shaft 7 to finish centrifugal water pumping, the pressure inside the pump body 1 is increased, part of water seeps out through the mechanical seal movable ring 9 and the mechanical seal stationary ring 10 and enters the pump cover 5, due to the action of the fastening ring 11 and the fastening sleeve 12, the water flow can only reach the inside of the pump cover 5 and cannot further permeate, the flow rate is reduced due to the pressurized water when the water flows out of the water outlet end, the diameter inside the cavity channel is gradually increased, the impact on the water outlet pipe 4 is reduced, and the connection stability is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a centrifugal pump, includes the pump body (1), its characterized in that, the end of intaking and the play water end of the pump body (1) are all connected fixedly through locking mechanism (2) and inlet tube (3) and outlet pipe (4) that correspond, the passing through bolt of the pump body (1) is connected fixedly with pump cover (5), the one end of pump cover (5) is passed the flange and is connected with motor (6), pump shaft (7) on motor (6) pass pump cover (5) and with the inside impeller (8) fixed connection of the pump body (1), the outside of pump shaft (7) just is located and is overlapped in proper order between the pump body (1) and pump cover (5) and is equipped with mechanical seal rotating ring (9) and mechanical seal stationary ring (10), the outside cover that pump shaft (7) just is located pump cover (5) is equipped with tight circle (11), and tight circle (11) are close to one end department at motor (6) place.

2. A centrifugal pump according to claim 1, characterized in that the locking mechanism (2) comprises a clamp (201) and a free pad (202), the inlet pipe (3) and the outlet pipe (4) are all sleeved outside the inlet end and the outlet end of the pump body (1), the clamp (201) is all sleeved outside the inlet pipe (3) and the outlet pipe (4) and is located at the overlapping part of the inlet end and the outlet end of the inlet pipe (3) and the outlet pipe (4) and the pump body (1).

3. A centrifugal pump according to claim 1, characterized in that a clamping sleeve (12) is arranged at one end of the clamping ring (11) far away from the motor (6), and the clamping sleeve (12) is fixedly connected with the clamping ring (11) through a bolt.

4. A centrifugal pump according to claim 1, characterized in that the pump body (1) and the pump cover (5) are engaged at their edges and that at the engagement an O-ring (13) is mounted.

5. A centrifugal pump according to claim 1, characterized in that the outlet end of the pump body (1) is of a conical configuration and the inner diameter of the outlet end remote from the pump body (1) is greater than the inner diameter of the outlet end close to the pump body (1).

6. A centrifugal pump according to claim 1, characterized in that the motor (6) is located inside the motor shield (14), and the bottom of the motor (6) is symmetrically provided with pump feet (15), and the motor (6) is fixedly connected with the inner bottom of the motor shield (14) through the pump feet (15).