CN214424759U - Low-noise centrifugal pump impeller - Google Patents

Abstract

The utility model discloses a low noise centrifugal pump impeller, including being ring type bottom plate, leaf bottom plate up end lid has closed the water conservancy diversion ring, and perpendicular gomphosis has a plurality of blades between bottom plate of the leaf and water conservancy diversion ring, and one side that the water conservancy diversion ring was kept away from to the bottom plate of the leaf is provided with the auxiliary impeller. The utility model relates to a low noise centrifugal pump impeller adopts the blade that is the helix form, can make rivers more smooth and easy flow in the outlet angle from the import angle, noise abatement's production, simultaneously with axle hole cover and blade between the strengthening rib can prevent that the blade from excessively bending breaking, the auxiliary impeller of blade bottom plate opposite side setting, can effective balanced axial force, and reduce sealed chamber pressure, alleviate mechanical seal's burden, the life of extension pump improves the flow of impeller, the noise of reduction production.

Description

Low-noise centrifugal pump impeller

Technical Field

The utility model belongs to the technical field of the impeller, especially, relate to a low noise centrifugal pump impeller.

Background

The impeller is a core part of the water pump, the water pump transfers energy to the blades through the motor, the blades rotate in the impeller, and water in the water pump is delivered to a high place under the action of centrifugal force; traditional impeller comprises blade and leaf chassis, and the blade is straight lamellar body, is radial circumference partition on the leaf bottom plate, and this kind of impeller though make simply, the raise dust of water pump is little, and rivers striking not only leads to the blade fracture easily on the blade, still can produce a large amount of noises, and the transfer energy efficiency who leads to the water pump is poor, and the noise is big. There is therefore a need for a solution to the above.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a prevent that the blade is crooked excessive fracture, blade and flowing water collision flow guarantee energy transfer efficiency's low noise centrifugal pump impeller.

In order to achieve the above object, the utility model provides a low noise centrifugal pump impeller, a serial communication port, including being ring type bottom plate, the guide ring has been closed to leaf bottom plate up end lid, the leaf bottom plate with perpendicular gomphosis has a plurality of blades between the guide ring, the leaf bottom plate is kept away from one side of guide ring is provided with the auxiliary impeller.

In one example, the blade includes a leading edge portion that forms an inlet angle of 20.4 °, a trailing edge portion that forms an outlet angle of 25.4 °, and a wrap angle of 138.7 ° for both axial faces at the intersection of the inlet angle and the outlet angle.

In one example, the guide ring is concentric with the blade bottom plate, the upper end face of the guide ring is connected with a guide ring, the guide ring extends towards the position of a circle center along the outer edge of the guide ring, and the guide ring inclines upwards relative to the horizontal plane, so that the guide ring becomes smaller from the bottom upwards.

In one example, a shaft hole sleeve penetrating through the blade bottom plate is vertically arranged at the center of the blade bottom plate, and the shaft hole sleeve extends to the other side of the blade bottom plate.

In one example, the blades are regularly arranged with the shaft hole sleeves as circle centers at equal intervals, the blades are in a spiral shape and face the outer edge of the blade bottom plate to radiate with the shaft hole sleeves as circle centers, and reinforcing ribs for preventing the blades from being broken are connected between the blades and the shaft hole sleeves.

In one example, the sub-impellers are regularly arranged at equal intervals with the shaft hole sleeve as a circle center, the sub-impellers radially diffuse from the circle center of the shaft hole sleeve to the outer edge of the blade bottom plate, and a first reinforcing ring and a second reinforcing ring which are concentric with the blade bottom plate are fixedly embedded between the sub-impellers.

In one example, the shaft sleeve inner diameter is a through hole matched with the output shaft of the pump.

Through the utility model provides a low noise centrifugal pump impeller can bring following beneficial effect: the adoption is helical line form blade, can make rivers more smoothly flow in the outlet angle from the import angle, the production of noise abatement, simultaneously with the strengthening rib between axle hole cover and blade can prevent that the blade from excessively bending to take place the fracture, the auxiliary impeller that the blade bottom plate opposite side set up can effectively balance the axial force, and reduce sealed chamber pressure, alleviate mechanical seal's burden, the life of extension pump guarantees the efficiency of impeller transmission energy, improves the flow of impeller, the noise of reduction production.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a top view of a low noise centrifugal pump impeller of the present invention;

fig. 2 is a bottom view of the impeller of the low noise centrifugal pump of the present invention;

fig. 3 is a side view of a low noise centrifugal pump impeller of the present invention;

fig. 4 is a front side view of a low noise centrifugal pump impeller of the present invention;

fig. 5 is a rear side view of a low noise centrifugal pump impeller of the present invention;

fig. 6 is a cross-sectional view of the impeller of the low noise centrifugal pump of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so 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 invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1-6, the embodiment of the utility model provides a low noise centrifugal pump impeller, it has closed guide ring 2 including being ring type leaf bottom plate 1, 1 up end lid of leaf bottom plate, and perpendicular gomphosis has a plurality of blades 3 between leaf bottom plate 1 and guide ring 2, and one side that guide ring 2 was kept away from to leaf bottom plate 1 is provided with auxiliary impeller 4.

Specifically, the blade 3 includes a leading edge portion 31 and a trailing edge portion 32, the leading edge portion 31 forms an entrance angle 311 of 20.4 °, the trailing edge portion 32 forms an exit angle 321 of 25.4 °, and the blade wrap angle of two axial planes at the intersection of the entrance angle 311 and the exit angle 321 is 138.7 °.

Specifically, the guide ring 2 is concentric with the blade bottom plate 1, the upper end face of the guide ring 2 is connected with the guide ring 21, the guide ring 21 extends towards the circle center along the outer edge of the guide ring 2, and the guide ring 21 inclines upwards relative to the horizontal plane, so that the guide ring 21 becomes smaller from the bottom upwards gradually.

Specifically, a shaft hole sleeve 5 penetrating through the blade bottom plate 1 is vertically arranged at the circle center position of the blade bottom plate 1, and the shaft hole sleeve 5 extends to the other side of the blade bottom plate 1.

Specifically, the blades 3 are regularly arranged at equal intervals by taking the shaft hole sleeve 5 as a circle center, the blades 3 are in a spiral shape and radiate towards the outer edge of the blade bottom plate 1 by taking the shaft hole sleeve 5 as a circle center, and a reinforcing rib 33 for preventing the blades 3 from being broken is connected between the blades 3 and the shaft hole sleeve 5.

Specifically, the sub-impellers 4 are regularly arranged at equal intervals with the shaft hole sleeve 5 as the center, the sub-impellers 4 radially diffuse from the center of the shaft hole sleeve 5 to the outer edge of the blade base plate 1, and a first reinforcing ring 41 and a second reinforcing ring 42 concentric with the blade base plate 1 are fixedly embedded between the sub-impellers 4.

Specifically, the inner diameter of the shaft hole sleeve 5 is a through hole 51 matched with the output shaft of the pump.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a low noise centrifugal pump impeller, its characterized in that, is including being ring type bottom plate, the guide ring has been closed to leaf bottom plate up end lid, the leaf bottom plate with perpendicular gomphosis has a plurality of blades between the guide ring, the leaf bottom plate is kept away from one side of guide ring is provided with the auxiliary impeller.

2. A low noise centrifugal pump impeller according to claim 1, wherein said blades comprise a leading edge portion and a trailing edge portion, said leading edge portion forming an entrance angle of 20.4 °, said trailing edge portion forming an exit angle of 25.4 °, and a blade wrap angle of two axial faces at the intersection of said entrance angle and said exit angle being 138.7 °.

3. The impeller for the centrifugal pump with low noise as claimed in claim 1, wherein the guide ring is concentric with the bottom plate, the upper end surface of the guide ring is connected with a guide ring, the guide ring extends along the outer edge of the guide ring towards the center of the circle, and the guide ring is inclined upwards relative to the horizontal plane, so that the guide ring becomes smaller from the bottom upwards.

4. The impeller of the centrifugal pump with low noise as claimed in claim 1, wherein a shaft hole sleeve penetrating through the bottom plate is vertically arranged at the center of the bottom plate, and the shaft hole sleeve extends to the other side of the bottom plate.

5. The impeller of the centrifugal pump with low noise as claimed in claim 4, wherein the blades are regularly arranged with equal distance with the shaft hole sleeve as the center, the blades are in a spiral shape and radiate towards the outer edge of the blade bottom plate with the shaft hole sleeve as the center, and a reinforcing rib for preventing the blades from being broken is connected between the blades and the shaft hole sleeve.

6. The impeller for the centrifugal pump with low noise as claimed in claim 4, wherein said sub-impellers are arranged with a regular interval around said axial hole sleeve, said sub-impellers are radially diffused from the center of said axial hole sleeve to the outer edge of said bottom plate, and said sub-impellers are fixedly fitted with a first reinforcing ring and a second reinforcing ring concentric with said bottom plate.

7. A low noise centrifugal pump impeller according to claim 4, wherein the inner diameter of said shaft sleeve is a through hole adapted to the output shaft of the pump.

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