CN214221532U

CN214221532U - Submersible axial-flow pump with sealing structure at inlet of mechanical seal

Info

Publication number: CN214221532U
Application number: CN202023322666.9U
Authority: CN
Inventors: 赖华煌; 刘彬琦; 蓝风翔
Original assignee: Huanan Pump Industry Co ltd
Current assignee: Huanan Pump Industry Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-17
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a machine seals import department and contains block structure's dive axial-flow pump, including the casing, the casing top is connected with actuating mechanism, and the below is connected with the water absorption mouth, be equipped with the shell of a chinese character shell in the casing, the shell of a chinese character shell top is equipped with the guide vane body, and the shell of a chinese character shell and the guide vane body pass through filtration and connect, and actuating mechanism drive guide vane body and shell of a chinese character shell rotate, follow the casing upper end discharge behind the water absorption mouth suction. The lower end of the annular shell of the guide vane body is provided with a first plane, and a second plane is arranged above the first plane. The filtering structure comprises a first annular groove formed in the upper surface of the annular surface, a first annular protrusion is arranged on the lower surface of the first plane, and the first annular protrusion is arranged in the first annular groove. The submersible axial-flow pump is provided with the filtering structure at the machine seal inlet, and the filtering structure reduces the gap between the shell fabric and the guide vane body, so that the entering amount of impurities is reduced, the probability of machine seal winding death is reduced, the filtering effect is enhanced, and the treatment cost of a user on sewage in the earlier stage is reduced.

Description

Submersible axial-flow pump with sealing structure at inlet of mechanical seal

Technical Field

The utility model relates to a dive axial-flow pump technical field specifically is a machine seals import department and contains block structure's dive axial-flow pump.

Background

A submersible axial pump is a type of vane pump, which transports a liquid not in a radial direction like a centrifugal pump but in a pump shaft direction, and is called an axial pump. And also known as propeller pumps because its blades are helical, much like propellers on airplanes and ships. The axial flow pump can be divided into three types, namely a vertical type axial flow pump, an inclined type axial flow pump and a horizontal type axial flow pump according to the installation position of a pump shaft, the three types are different only in the form of a pump body, but the internal structures are basically the same, and the vertical type axial flow pump is mostly produced in China.

The dead condition of winding card often takes place for traditional dive axial-flow pump machine seal import department, and in case the card is died, the water pump just can't normal operating, needs to maintain the water pump and change the machine seal, not only can increase the cost that the user changed the machine seal like this, has increased the number of times to the water pump maintenance moreover, influences the use of water pump. In addition, after the machine is sealed and clamped, the requirements of the water pump on the content and the size of impurity fibers in pumped sewage are reduced, so that the concentration of impurities in a water body exceeds the standard, and the treatment cost of a user on the sewage at the earlier stage is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that above-mentioned prior art exists, provide a machine and seal import department and contain the dive axial-flow pump of block structure.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a submersible axial flow pump with a sealing structure at an inlet of a machine seal comprises a shell, wherein a driving mechanism is connected above the shell, a water suction nozzle is connected below the shell, a shell pattern is arranged in the shell, a guide vane body is arranged above the shell pattern, the shell pattern and the guide vane body are connected through a filtering structure, the driving mechanism drives the guide vane body and the shell pattern to rotate, and water is sucked from the water suction nozzle and then discharged from the upper end of the shell.

Further, the shell of the wheel comprises a rim, a shaft housing is arranged in the middle of the rim, and the rim is connected with the shaft housing through an annular surface.

Further, the guide vane body comprises an annular shell, a first plane is arranged at the lower end of the annular shell, and a second plane is arranged above the first plane.

Further, the filtering structure comprises a first annular groove formed in the upper surface of the annular surface, a first annular protrusion is arranged on the lower surface of the first plane, and the first annular protrusion is arranged in the first annular groove.

Further, filtration is including seting up the first annular groove on the annular face upper surface, is equipped with the second annular arch in the first annular groove, the first plane lower surface is equipped with first annular arch, the protruding cross sectional shape of first annular is the U-shaped, the second annular arch is arranged in between the bellied both sides wall of first annular.

Furthermore, the filtering structure comprises a first annular groove formed in the upper surface of the annular surface, a second annular bulge is arranged in the first annular groove, the cross section of the second annular bulge is triangular, a first annular bulge is arranged on the lower surface of the first plane, the cross section of the first annular bulge is triangular, and the second annular bulge is embedded between two side walls of the first annular bulge.

Further, the shell comprises an upper shell and a lower shell, the cross section of the upper shell is trapezoidal, the cross section of the lower shell is inverted trapezoidal, and the upper shell and the lower shell are connected through an annular groove.

Further, the central angle of the cross section of the annular groove is larger than 120 degrees and smaller than 150 degrees.

Furthermore, the cross section of the water suction nozzle is in an inverted trapezoid shape, the inner wall of the water suction nozzle protrudes towards the axis to form an arc-surface wall, and the central angle of the cross section of the arc-surface wall is larger than 130 degrees and smaller than 150 degrees.

The utility model has the advantages that:

the utility model provides a dive axial-flow pump has set up filtration at quick-witted seal import department, and filtration has reduced the shell pattern and has led the clearance between the blade body for reduce the entering volume of impurity, reduce machine and seal and twine dead probability, and strengthen the filter effect, reduced the treatment cost of user to sewage in earlier stage.

Drawings

FIG. 1 is a schematic structural view of a submersible axial flow pump with a plugging structure at the inlet of a mechanical seal according to the present invention;

fig. 2 is a schematic structural view of the housing of the present invention;

FIG. 3 is a schematic structural view of the water suction nozzle of the present invention;

FIG. 4 is a schematic structural view of an embodiment 1 of the filter structure of the present invention;

fig. 5 is a schematic structural view of an embodiment 2 of the filter structure of the present invention;

fig. 6 is a schematic structural diagram of a filtering structure 3 according to the present invention.

In the figure: 1-shell, 111-upper shell, 112-lower shell, 113-annular groove, 2-water suction nozzle, 211-inner wall, 3-shell, 311-rim, 312-axle shell, 313-annular surface, 4-guide vane body, 411-annular shell, 412-first plane, 413-second plane, 5-driving axle, 6-driving mechanism, 7-mechanical seal, 8-first annular groove, 9-first annular bulge, and 11-second annular bulge.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1

Referring to fig. 1, the submersible axial-flow pump with a sealing structure at the inlet of the mechanical seal provided by the present invention includes a housing 1, a driving mechanism 6 connected to the upper portion of the housing 1, and a water suction nozzle 2 connected to the lower portion of the housing.

A shell of a wheel is arranged in the housing 1, a guide vane body 4 is arranged above the shell of the wheel 3, and the shell of the wheel 3 and the guide vane body 4 are connected through a filter structure.

The driving shaft 5 of the driving mechanism 6 passes through the guide vane body 4 and the housing 3 to be connected, and drives the guide vane body 4 and the housing 3 to rotate, so that water is pumped through the water suction nozzle 2 and the housing 1 and then is discharged from the upper end of the housing 1.

Referring to fig. 2, the housing 1 includes an upper housing 111 and a lower housing 112, and the upper housing 111 and the lower housing 112 are connected by an annular groove 113. The central angle of the cross section of the annular groove 113 is greater than 120 ° and less than 150 °.

The cross section of the upper housing 111 is trapezoidal, and the cross section of the lower housing 112 is inverted trapezoidal. The upper end of the upper shell 111 is a water outlet, and the lower end of the lower shell 112 is a water inlet.

Referring to fig. 3, the cross section of the water suction nozzle 2 is in the shape of an inverted trapezoid, and the inner wall 211 thereof protrudes toward the axis to form an arc wall, and the central angle of the cross section of the arc wall is greater than 130 ° and smaller than 150 °.

Referring to fig. 4, the housing 3 includes a rim 311, a shaft housing 312 is disposed at a middle portion of the rim 311, and the rim 311 and the shaft housing 312 are connected by an annular surface 313. The rim 311, the axle housing 312, and the annular surface 313 are integrally formed.

The guide vane body 4 comprises an annular housing 411, a first plane 412 is arranged at the lower end of the annular housing 411, and a second plane 413 is arranged above the first plane 412.

A water passage is formed between the annular surface 313 and the first plane 412.

The first plane 412 has a first avoiding hole defined therein, and the shaft housing 312 of the housing wheel 3 is interference-fitted in the first avoiding hole.

The second plane 413 is provided with a second avoiding hole, and the second avoiding hole is connected with the shaft housing 312 through a mechanical seal 7.

The driving shaft 5 sequentially passes through the second avoidance hole and the mechanical seal 7 and then is inserted into the shaft housing 312, and is in interference fit with the mechanical seal 7 and the shaft housing 312.

The filtering structure comprises a first annular groove 8 opened on the upper surface of the annular surface 313, and a first annular protrusion 9 is arranged on the lower surface of the first plane 412, and the first annular protrusion 9 is arranged in the first annular groove 8.

Example 2

Referring to fig. 5, the difference between this embodiment and embodiment 1 is: the filter structure comprises a first annular groove 8 opened on the upper surface of the annular surface 313, and a second annular protrusion 11 is arranged in the first annular groove 8.

The lower surface of the first plane 412 is provided with a first annular bulge 9, and the cross section of the first annular bulge 9 is U-shaped.

The second annular projection 11 is interposed between both side walls of the first annular projection 9.

Example 3

Referring to fig. 6, the difference between the present embodiment and embodiment 1 is: the filter structure comprises a first annular groove 8 arranged on the upper surface of the annular surface 313, a second annular bulge 11 is arranged in the first annular groove 8, and the cross section of the second annular bulge 11 is triangular.

The lower surface of the first plane 412 is provided with a first annular bulge 9, and the cross section of the first annular bulge 9 is triangular.

The working principle is as follows:

after the power supply is switched on, the driving mechanism 6 drives the guide vane body 4 and the shell fabric 3 to rotate to suck the water body, and water enters from the water suction nozzle 2, flows through a water channel in the shell 1 and then flows out from a water outlet in the upper part of the shell 1. The filtering structure filters the water, and prevents impurities from entering the water to cause the machine seal 7 to be stuck.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a machine seals import department and contains block structure's dive axial-flow pump, includes casing (1), casing (1) top is connected with actuating mechanism, and the below is connected with water absorption mouth (2), its characterized in that: the shell of the water-saving machine is characterized in that a shell of a wheel (3) is arranged in the shell (1), a guide vane body (4) is arranged above the shell of the wheel (3), the shell of the wheel (3) is connected with the guide vane body (4) through a filtering structure, and a driving mechanism (6) drives the guide vane body (4) and the shell of the wheel (3) to rotate so as to suck water from the water suction nozzle (2) and discharge the water from the upper end of the shell (1).

2. The submersible axial flow pump with a block structure at the seal inlet of claim 1, wherein: the shell (3) comprises a rim (311), a shaft shell (312) is arranged in the middle of the rim (311), and the rim (311) is connected with the shaft shell (312) through an annular surface (313).

3. The submersible axial flow pump with a block structure at the seal inlet of claim 2, wherein: the guide vane body (4) comprises an annular shell (411), a first plane (412) is arranged at the lower end of the annular shell (411), and a second plane (413) is arranged above the first plane (412).

4. The submersible axial flow pump with a block structure at the seal inlet of claim 3, wherein: the filtering structure comprises a first annular groove (8) formed in the upper surface of an annular surface (313), a first annular protrusion (9) is arranged on the lower surface of the first plane (412), and the first annular protrusion (9) is arranged in the first annular groove (8).

5. The submersible axial flow pump with a block structure at the seal inlet of claim 3, wherein: the filtering structure comprises a first annular groove (8) formed in the upper surface of an annular surface (313), a second annular protrusion (11) is arranged in the first annular groove (8), a first annular protrusion (9) is arranged on the lower surface of a first plane (412), the cross section of the first annular protrusion (9) is U-shaped, and the second annular protrusion (11) is arranged between two side walls of the first annular protrusion (9).

6. The submersible axial flow pump with a block structure at the seal inlet of claim 3, wherein: the filtering structure comprises a first annular groove (8) formed in the upper surface of an annular surface (313), a second annular bulge (11) is arranged in the first annular groove (8), the cross section of the second annular bulge (11) is triangular, a first annular bulge (9) is arranged on the lower surface of a first plane (412), the cross section of the first annular bulge (9) is triangular, and the second annular bulge (11) is embedded between two side walls of the first annular bulge (9).

7. The submersible axial flow pump with a block structure at the seal inlet of claim 1, wherein: casing (1) includes casing (111) and casing (112) down, the shape of going up casing (111) cross section is trapezoidal, the shape of casing (112) cross section is down trapezoidal, go up casing (111) and connect through ring channel (113) between casing (112) down.

8. The submersible axial flow pump with a containment structure at a seal inlet of claim 7, wherein: the central angle of the cross section of the annular groove (113) is more than 120 degrees and less than 150 degrees.

9. The submersible axial flow pump with a containment structure at a seal inlet of claim 8, wherein: the cross section of the water suction nozzle (2) is in an inverted trapezoid shape, the inner wall (211) of the water suction nozzle protrudes towards the axis to form an arc-surface wall, and the central angle of the cross section of the arc-surface wall is larger than 130 degrees and smaller than 150 degrees.