CN211422992U

CN211422992U - Wear-resisting ring of submersible pump for well

Info

Publication number: CN211422992U
Application number: CN201922206030.9U
Authority: CN
Inventors: 焦俊杰; 郑义; 戴吉隆; 李璐璐; 戴祥鼎
Original assignee: Haicheng Suprasuny Pump Co ltd
Current assignee: Haicheng Suprasuny Pump Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-04
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a well submersible pump wear ring, its characterized in that: is prepared from the following components: the wear-resisting ring, ring channel and opening constitute, be equipped with the ring channel of recess shape on the wear-resisting ring, flange terminal surface circumference equipartition at the wear-resisting ring is equipped with 1~3 openings that are the recess shape, the wear-resisting ring adopts the polyurethane material to make, the ring channel that sets up on the wear-resisting ring is radial clearance fit with the wheel hub of stator, the opening of the flange terminal surface circumference equipartition of wear-resisting ring and the protruding cooperation of the terminal surface circumference equipartition of stator, form a set of sound cooperation between the hole of wear-resisting ring and the wheel hub of the impeller of suit in the pump shaft. The utility model discloses long-term operation and frequent start in arranging in the quality of water that contains silt, the improvement of very big limit anti husky abrasive resistance, the phenomenon that realizes that wear-resisting ring and stator, impeller wheel hub all can not produce wearing and tearing also can not produce the spare part and destroy takes place, has reasonable in design, simple structure, performance safe and reliable's characteristics, has improved the life of well submersible pump greatly.

Description

Wear-resisting ring of submersible pump for well

Technical Field

The utility model belongs to a wear-resisting facility suitable for pump send containing silt well immersible pump in quality of water, in particular to immersible pump wear ring for well.

Background

At present, in the prior art in China, a wear-resistant ring made of steel is arranged between a guide vane and a hub of an impeller for sand resistance and wear resistance in a well submersible pump which is traditionally applied. However, such a wear ring has the following problems: when the pump pumps water containing fine sand grains, the hardness of the sand grains is far greater than that of the steel wear-resistant ring and the impeller, so that the wear-resistant ring and the impeller hub are quickly worn, the backflow gap of a flow passage component is enlarged, the performance is reduced, other parts of the pump are damaged along with the breakage of the steel wear-resistant ring, and the service life of the submersible pump for the well is sharply reduced to be scrapped.

Disclosure of Invention

The utility model overcomes the defect that above-mentioned exists, the purpose is for solving between the stator and the impeller wheel hub of well immersible pump, because of the fine sand in the clearance destroys the wearing and tearing that its mating surface caused, reduces the life of well immersible pump, provides a well immersible pump wear ring

The contents of the wear-resisting ring of the submersible pump for the well are briefly described as follows:

the utility model discloses well immersible pump wear ring, its characterized in that: is prepared from the following components: the wear-resistant ring comprises a wear-resistant ring, an annular groove and notches, wherein the wear-resistant ring is provided with the annular groove in a groove shape, and 1-3 notches in the groove shape are uniformly distributed on the circumference of the flange end face of the wear-resistant ring.

The utility model discloses well immersible pump wear ring arranges in and contains long-term operation and frequent start in the quality of water of silt, the improvement of very big limit anti husky abrasive resistance, realized that wear ring 1 and stator 4, 6 wheel hub of impeller do not all have obvious wearing and tearing, also do not have the phenomenon emergence of the spare part destruction that produces from this, have reasonable in design, simple structure, performance safe and reliable's characteristics, improved well immersible pump's life greatly.

Drawings

FIG. 1 is a schematic diagram of a wear-resistant ring structure of a well submersible pump;

FIG. 2 is a cross-sectional view of a wear ring of the well submersible pump;

FIG. 3 is a cross-sectional view of a well submersible pump vane;

FIG. 4 is a single stage assembled cross-sectional view of the well submersible pump;

in the figure: 1 is a wear-resistant ring, 2 is an annular groove, 3 is a notch, 4 is a guide vane, 5 is a bulge, 6 is an impeller and 7 is a pump shaft.

Detailed Description

The utility model discloses well immersible pump wear ring is realized like this, and the following is specifically explained with the attached drawing.

See fig. 1-fig. 2, the utility model discloses well immersible pump wear ring is by: the wear-resisting ring comprises a wear-resisting ring 1, an annular groove 2 and notches 3, wherein the annular groove 2 in a groove shape is arranged on the wear-resisting ring 1, and 1-3 notches 3 in a groove shape are uniformly distributed on the circumference of the end face of a flange of the wear-resisting ring 1.

Referring to fig. 3-4, in operation, the annular groove 2 formed in the wear-resistant ring 1 is in radial clearance fit with the hub of the guide vane 4, the notches 3 uniformly distributed on the circumference of the end face of the flange of the wear-resistant ring 1 are matched with the protrusions 5 uniformly distributed on the circumference of the end face of the guide vane 4, and a group of dynamic and static fit is formed between the inner hole of the wear-resistant ring 1 and the hub of the impeller 6 sleeved in the pump shaft 7. The wear-resisting ring 1 is made of polyurethane materials, the annular groove 2 is in radial clearance fit with a hub of the guide vane 4, and the circumferential rotation of the wear-resisting ring is limited by matching openings 3 uniformly distributed on the circumference of the end face of the flange of the wear-resisting ring 1 with protrusions 5 uniformly distributed on the circumference of the end face of the guide vane 4. Impeller 6 suit is in submersible pump shaft 7 for the well, when motor start back drive pump shaft 7, impeller 6 are rotatory, the utility model discloses the wear-resisting ring 1 of submersible pump for the well is by the spacing not production circular rotation motion of fixed stator 4, has formed a set of sound cooperation between the hole of wear-resisting ring 1 and impeller 6's wheel hub. The submersible pump for the well can drive water containing silt to work along with the rotation of the impeller 6, the silt is inevitably brought into a small gap formed by a hub of the impeller 6 and an inner hole of the wear-resistant ring 1 at the moment, the damage caused by irregular movement and the rigidity of the sand is relieved through the elastic compressibility and the water lubrication wear resistance of the wear-resistant ring 1, the radial gap between the wear-resistant ring 1 and the guide vane 4 is arranged in a design structure, the wear-resistant ring 1 freely moves in the small gap to correct the radial position of the wear-resistant ring 1 in the guide vane 4 and increase the space for containing the sand, the sand can be discharged out of the small gap between the inner hole of the wear-resistant ring 1 and the hub of the impeller 6 along the liquid flow direction as early as possible, the damage caused by the sand at the position is instantly reduced, and the wear damage degree of. The flange structures are arranged at the two ends of the wear-resistant ring 1 matched with the shaft diameter, so that the backflow of water in the guide vane of the stage is avoided, and the pump efficiency is ensured.

The wear-resisting ring 1 made of polyurethane high-molecular wear-resisting material is adopted, the roundness of the wear-resisting ring 1 product after injection molding is within 0.2mm by reasonable configuration of chemical components and reasonable arrangement of an injection molding processing technology, and better roundness can ensure that the impeller 6 can not be scraped and worn to the wear-resisting ring 1 when the submersible pump operates, so that mechanical loss is reduced, and the product quality is ensured.

The experiment proves that the utility model discloses well immersible pump wear ring arranges in and contains long-term operation and frequent start in the quality of water of silt, the improvement of very big limit anti husky abrasive resistance, realized that wear ring 1 and stator 4, 6 wheel hub of impeller do not all have obvious wearing and tearing, also do not have the phenomenon emergence of the spare part destruction that produces from this, have reasonable in design, simple structure, performance safe and reliable's characteristics, improved well immersible pump's life greatly.

Claims

1. The utility model provides a wear-resisting ring of immersible pump for well which characterized in that: is prepared from the following components: the wear-resistant ring comprises a wear-resistant ring (1), an annular groove (2) and notches (3), wherein the annular groove (2) in a groove shape is formed in the wear-resistant ring (1), and 1-3 notches (3) in the groove shape are uniformly distributed on the circumference of the end face of a flange of the wear-resistant ring (1).