CN220956154U - High-efficiency centrifugal pump impeller with lengthened flow passage and centrifugal pump - Google Patents

Abstract

The utility model discloses a high-efficiency centrifugal pump impeller with an elongated runner and a centrifugal pump, and relates to the technical field of centrifugal pumps. According to the utility model, the drainage body is used for guiding water into the drainage groove, the water flows in the drainage groove, so that the water enters between the blades, the drainage body and the impeller are utilized to transfer the water from the top of the drainage body to the impeller in a rotating way to accelerate gradually, and then the water is firstly accelerated from the top of the drainage body to the bottom of the drainage body, and the water is secondarily accelerated from the bottom of the drainage body to the edge of the impeller, so that the use efficiency of the impeller is improved, and the purposes of saving resources and protecting environment are achieved.

Description

High-efficiency centrifugal pump impeller with lengthened flow passage and centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a high-efficiency centrifugal pump impeller with an elongated flow channel and a centrifugal pump.

Background

In the present centrifugal pump application process, most of the centrifugal pumps are short in flow channels and are not specially designed for the flow channels, so that the use efficiency of the centrifugal pumps is low, the flow rate of water outlets of the centrifugal pumps is low, the water flow pumped by the pump bodies is insufficient, and the water cannot be discharged to the outside quickly under the situation of urgent drainage.

The utility model of the authorized publication number CN215292999U discloses a high-efficiency long-runner impeller low-specific-speed centrifugal pump, which is characterized in that liquid is led into a pump body through an inducer, meanwhile, the inducer is positioned in a liquid inlet pipe, and pressure is applied to the liquid when the inducer rotates, so that the liquid rapidly enters the impeller, and the service efficiency of a pump body is improved.

The device can play the use efficiency that promotes the pump body, but when the velocity of flow is too fast, just rely on inducer drainage unable one step to accelerate, can produce certain resistance on the contrary for the pump body efficiency can't promote.

Disclosure of utility model

The utility model aims to provide a high-efficiency centrifugal pump impeller with an elongated flow passage and a centrifugal pump, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a high efficiency centrifugal pump impeller of extension runner, includes the impeller, fixedly be provided with a plurality of arc blades on the impeller, circular hole has been seted up at the impeller middle part, be provided with drainage body on the impeller, a plurality of drainage grooves have been seted up on the drainage body external surface, be provided with the fillet between the drainage groove.

As a further scheme of the utility model: the side surface of the diversion body is arc-shaped.

As still further aspects of the utility model: the end faces of the fillets are identical to the end faces of the blades, and the fillets and the blades are tightly attached to each other.

As still further aspects of the utility model: the drainage body top is provided with the water conservancy diversion awl.

As still further aspects of the utility model: the drainage body top is provided with the water conservancy diversion awl.

The utility model provides a centrifugal pump, includes the pump body and driving motor, driving motor and pump body pass through connecting piece fixed connection, the fixed support that is provided with of driving motor lower wall, the inside drive shaft that is provided with of driving motor, the drive shaft runs through the pump body and is provided with the bearing with pump body junction, pump body feed inlet department is provided with the inlet tube, pump body discharge gate department is provided with the outlet pipe, still includes the high efficiency centrifugal pump impeller of above-mentioned extension runner, draw fluid and impeller to install in the pump body, drive shaft one end and draw fluid and impeller fixed connection.

As still further aspects of the utility model: the discharge hole of the pump body is provided with a venturi, and the discharge hole of the venturi is provided with a water outlet pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. The water is introduced into the drainage groove through the drainage body, the water flows in the drainage groove, so that the water enters between the blades, the water is gradually accelerated from the top of the drainage body to the impeller by utilizing the drainage body and the impeller rotation, and then the water is primarily accelerated from the top of the drainage body to the bottom of the drainage body, and secondarily accelerated from the bottom of the drainage body to the edge of the impeller, so that the use efficiency of the impeller is improved, and the purposes of saving resources and protecting environment are achieved;

2. The water is fed through the water inlet pipe, the water is guided by the guide cone, and a narrow space is formed between the guide body and the shell of the pump body, so that the water mainly flows in from the guide groove on the guide body, the water is primarily accelerated in the guide groove due to the fact that the linear speed at the bottom of the cone is greater than the linear speed at the top of the cone, and then enters the impeller to be further accelerated, the service efficiency of the pump body is further improved, and the purpose of saving resources is achieved;

3. The driving shaft of the driving motor provides power for the pump body, so that water enters from the water inlet pipe, is sent to the venturi through the pump body, is sent to the water outlet pipe from the venturi, enters from the center of the pump body, is thrown onto the inner wall of the pump body under the action of centrifugal force of the pump body, is output from the discharge hole of the pump body, flows out from the large diameter flow to the small diameter flow in the venturi, and is further accelerated in the venturi, so that the operation efficiency of the pump body is improved.

Drawings

Fig. 1 is a schematic front view of embodiment 1 of the present utility model.

Fig. 2 is a schematic three-dimensional structure of embodiment 1 of the present utility model.

Fig. 3 is an exploded view of example 1 of the present utility model.

Fig. 4 is a schematic three-dimensional structure of embodiment 2 of the present utility model.

Fig. 5 is a schematic front view of embodiment 2 of the present utility model.

Fig. 6 is a schematic view showing a partial sectional structure of embodiment 2 of the present utility model.

Fig. 7 is an exploded view of embodiment 2 of the present utility model.

Reference numerals annotate: 1. a drainage body; 11. drainage grooves; 12. fillets; 2. an impeller; 21. a blade; 3. a driving motor; 4. a bracket; 5. a drive shaft; 6. a water inlet pipe; 7. a water outlet pipe; 8. a pump body; 9. a venturi; 10. and a diversion cone.

Detailed Description

The present utility model will be described in detail below with reference to the drawings, in which like or identical parts are given the same reference numerals, and in which the shape, thickness or height of each component may be enlarged or reduced in practical use. The examples set forth herein are intended to be illustrative of the utility model and are not intended to limit the scope of the utility model. Any obvious modifications or alterations to the utility model, as would be apparent, are made without departing from the spirit and scope of the present utility model.

Example 1

Referring to fig. 1 to 3, in the embodiment of the utility model, a high-efficiency centrifugal pump impeller with an elongated flow channel comprises an impeller 2, a plurality of arc-shaped blades 21 are fixedly arranged on the impeller 2, a circular hole is formed in the middle of the impeller 2, a diversion body 1 is arranged on the impeller 2, the side surface of the diversion body 1 is arc-shaped, a diversion cone 10 is arranged at the top of the diversion body 1, a plurality of diversion grooves 11 are formed in the outer surface of the diversion body 1, ribs 12 are arranged between the diversion grooves 11, the end surfaces of the ribs 12 are identical to the end surfaces of the blades 21 and are tightly attached to each other, water is introduced into the diversion grooves 11 through the diversion body 1, water flows in the diversion grooves 11, so that water enters between the blades 21, the diversion body 1 and the impeller 2 are gradually accelerated from the top of the diversion body 1 to the impeller 2 by utilizing the rotation water, the primary acceleration is firstly carried out from the top of the diversion body 1 to the bottom of the diversion body 1, and the secondary acceleration is carried out from the bottom of the diversion body 1 to the edge of the impeller 2, so that the use efficiency of the impeller 2 is improved, and the purpose of saving resources and environmental protection is achieved.

Example 2

Referring to fig. 4 to 7, in the embodiment of the utility model, a centrifugal pump comprises a pump body 8 and a driving motor 3, wherein the driving motor 3 and the pump body 8 are fixedly connected through a connecting piece, a bracket 4 is fixedly arranged on the lower wall of the driving motor 3, a driving shaft 5 is arranged inside the driving motor 3, the driving shaft 5 penetrates through the pump body 8 and is provided with a bearing at the joint with the pump body 8, and a water inlet pipe 6 is arranged at the feed inlet of the pump body 8; still include embodiment 1's high efficiency centrifugal pump impeller of extension runner, drainage body 1 and impeller 2 are installed in pump body 8, drive shaft 5 one end and drainage body 1 and impeller 2 fixed connection, intake through inlet tube 6, water conservancy diversion cone 10 is water conservancy diversion, drainage body 1 forms narrow and small space with the casing of pump body 8 for water mainly flows in from drainage body 1 upper drainage groove 11, because of cone bottom linear velocity is greater than top linear velocity, makes water carry out preliminary acceleration in drainage groove 11, then gets into impeller 2 and further accelerates, further improves pump body 8's availability factor, reaches resources are saved's purpose.

A venturi 9 is arranged at the discharge port of the pump body 8, a water outlet pipe 7 is arranged at the discharge port of the venturi 9, the pump body 8 is powered by the driving shaft 5 of the driving motor 3, so that water enters from the water inlet pipe 6, is sent to the venturi 9 through the pump body 8 and is then sent to the water outlet pipe 7 from the venturi 9, water enters from the center of the pump body 8, is thrown onto the inner wall of the pump body 8 under the action of centrifugal force of the pump body 8, is output from a discharge hole of the pump body 8, flows out from a large radial flow to a small radial flow in the venturi 9, and is further accelerated in the venturi 9, so that the operation efficiency of the pump body 8 is improved.

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 utility model may be embodied in other specific forms without departing from the spirit or essential characteristics 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a high efficiency centrifugal pump impeller of extension runner, includes impeller (2), its characterized in that, fixedly on impeller (2) be provided with a plurality of arc blades (21), circular hole has been seted up at impeller (2) middle part, be provided with drainage body (1) on impeller (2), a plurality of drainage grooves (11) have been seted up on drainage body (1) surface, be provided with rib (12) between drainage groove (11).

2. The high efficiency centrifugal pump impeller of an elongated flow passage according to claim 1, characterized in that the side surface of the flow guiding body (1) is arc-shaped.

3. A high efficiency centrifugal pump impeller according to claim 1, wherein the end surfaces of the fillets (12) are identical to the end surfaces of the blades (21) and are in close contact with each other.

4. The high-efficiency centrifugal pump impeller with the lengthened flow passage according to claim 1, wherein the top of the drainage body (1) is provided with a diversion cone (10).

5. The utility model provides a centrifugal pump, includes pump body (8) and driving motor (3), driving motor (3) and pump body (8) pass through connecting piece fixed connection, driving motor (3) lower wall is fixed to be provided with support (4), driving motor (3) inside is provided with drive shaft (5), drive shaft (5) run through pump body (8) and are provided with the bearing with pump body (8) junction, pump body (8) feed inlet department is provided with inlet tube (6), pump body (8) discharge gate department is provided with outlet pipe (7), a serial communication port, still include according to any one of claims 1-3 the high efficiency centrifugal pump impeller of extension runner, drainage body (1) and impeller (2) are installed in pump body (8), drive shaft (5) one end and drainage body (1) and impeller (2) fixed connection.

6. Centrifugal pump according to claim 5, wherein a venturi (9) is arranged at the discharge opening of the pump body (8), and a water outlet pipe (7) is arranged at the discharge opening of the venturi (9).