CN109236729B

CN109236729B - Drainage impeller

Info

Publication number: CN109236729B
Application number: CN201811135975.XA
Authority: CN
Inventors: 陈文祺; 黄旭光; 陈文池
Original assignee: Guangzhou Hezhong Fuhua Energy Saving Environmental Protection Science & Technology Co ltd
Current assignee: Guangzhou Hezhong Fuhua Energy Saving Environmental Protection Science & Technology Co ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-12-01
Anticipated expiration: 2038-09-28
Also published as: CN109236729A

Abstract

The invention discloses a drainage impeller, which comprises an impeller core and a plurality of blades distributed on the periphery of the impeller core, wherein each blade comprises a water inlet side at the back of the blade and a drainage side at the front of the blade; one surface of the drainage impeller in the rotating direction is the front surface of the blade; the lower end part of the drainage side is provided with a water-repellent part with an arc-shaped concave section. The drainage impeller can better increase the drainage and save energy consumption.

Description

Drainage impeller

Technical Field

The invention relates to a drainage impeller.

Background

At present, among the energy-conserving transformation engineering of current cooling tower, generally install between inlet tube and sprinkler pipe behind the hydraulic turbine, water drives the fan blade rotation after the hydraulic turbine impeller does work, if power is not enough, install the auxiliary force motor additional and assist the fan blade, because the cooling water is after the reaction type hydraulic turbine does work, the pressure step-down, the velocity of flow reduces, thereby cause the cooling tower flow to reduce, the cooling effect is not good, and if the cooling water velocity of flow reduces, the flow reduces the back and can cause the pressure rise in the whole circulating line conversely, finally make the pressure increase of water pump, the electric current rises, the energy consumption increases, be unfavorable for energy-conservation more.

Disclosure of Invention

The invention aims to provide a drainage impeller, which can better increase the drainage and save energy consumption.

In order to achieve the purpose, the invention provides a drainage impeller, which comprises an impeller core and a plurality of blades distributed on the periphery of the impeller core, wherein the blades comprise a water inlet side on the back of each blade and a drainage side on the front of each blade; one surface of the drainage impeller in the rotating direction is the front surface of the blade; the lower end part of the drainage side is provided with a water-repellent part with an arc-shaped concave section.

In the above-mentioned drainage impeller, the water-repellent portion set up in the bottom of drainage side, the top side of water-repellent portion with the bottom side of drainage side meets, the concave surface orientation of water-repellent portion with the front orientation of blade is the same.

In the above-mentioned drainage impeller, the axial of the blade and the axial of the core wheel form an included angle.

In the drainage impeller, the included angle is 15-45 degrees.

In the above-described drainage impeller, the blades are twisted.

In the above-mentioned drainage impeller, the width of the water-repellent part is the same as the width of the blade.

In the above-mentioned drainage impeller, the number of the blades is four.

Compared with the prior art, the drainage impeller provided by the technical scheme has the beneficial effects that: when the drainage impeller rotates, water flow enters the drainage side through the water inlet side and is discharged, the water stirring part with the section being in an arc concave shape is arranged on the drainage side, when the water flow flows to the drainage side along with the rotation of the drainage impeller, the water flow flows out through the concave surface of the water stirring part through the impact water stirring part, so that the speed of the drainage water flow is increased, the drainage amount is increased under the condition of the same motor power, and the energy consumption is saved.

Drawings

FIG. 1 is one of the structural schematic views of a drainage impeller of the present invention;

fig. 2 is a second schematic structural view of the drainage impeller of the present invention.

Wherein, 1-wheel core, 2-blade, 3-water inlet side, 4-water discharge side, and 5-water-stirring part.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1-2, the present invention provides a drainage impeller, which includes a core 1 and a plurality of blades 2 distributed on the periphery of the core 1, wherein the blades 2 include a water inlet side 3 on the back of the blade 2 and a drainage side 4 on the front of the blade 2; one surface of the drainage impeller in the rotating direction is the front surface of the blade 2; the lower end of the drainage side 4 is provided with a water-repelling part 5 with an arc-shaped concave section.

Based on above-mentioned technical characteristics, when the drainage impeller rotated, rivers passed through 3 entering of side of intaking 4 discharges of drainage side, through drainage side 4 sets up that the cross-section is the arc concavity water portion 5, when rivers along with drainage impeller's rotation flows extremely during drainage side 4, rivers are through the striking water portion 5 and process water portion 5's concave surface flows out to increase the speed of drainage rivers, thereby increase the flow, improved the displacement under the condition of same motor power, saved the energy consumption.

The water-repellent part 5 is arranged at the bottom end of the drainage side 4, the side edge of the top end of the water-repellent part 5 is connected with the side edge of the bottom end of the drainage side 4, and the concave surface of the water-repellent part 5 faces the same direction as the front surface of the blade 2; the water-repellent part 5 is arranged at the lower end of the drainage side 4, so that the flowing speed of water flow when the water flow collides with the water-repellent part 5 is increased, the drainage speed of the water flow is further improved, the concave surface of the water-repellent part 5 faces the rotating direction of the drainage impeller, the contact surface between the water flow and the concave surface and the water-repellent part 5 is increased, and the discharge flow is increased.

The axial of blade 2 with the axial of core wheel 1 is an contained angle, drainage side 4 certainly the rotation direction of drainage impeller is from inclining forward, makes blade 2 with core wheel 1 is the angle, works as when the drainage impeller rotates, rivers flow to when drainage side 4, reduce the resistance that the rivers passed through, improve drainage efficiency, be different from the impeller of the vertical setting of traditional blade.

The included angle is 15 degrees-45 degrees, and the corresponding angle is selected according to different conditions, so that the drainage efficiency is improved.

Blade 2 is the distortion form, through making blade 2 is the distortion of radian, and court the rotation direction distortion of drainage impeller improves the drainage efficiency of rivers when drainage impeller rotates for rivers are when being the blade 2 of distortion form, and the flow velocity is higher, and the resistance is littleer.

The width of the water-repellent part 5 is the same as that of the blade 2, and the water-repellent part 5 has the same width as that of the blade 2, so that the accelerated drainage capability of the water-repellent part 5 on water flow is improved, and the drainage efficiency is further improved.

The number of the blades 2 is four, the requirement of the number of the blades 2 for water drainage is met, and the cost is reduced.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. 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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A drainage impeller is characterized by comprising an impeller core and a plurality of blades distributed on the periphery of the impeller core, wherein the blades comprise a water inlet side on the back of each blade and a drainage side on the front of each blade; one surface of the drainage impeller in the rotating direction is the front surface of the blade; the bottom of the drainage side is provided with a water poking part with an arc-shaped concave section; the top side of the water-repellent part is connected with the bottom side of the drainage side, and the orientation of the concave surface of the water-repellent part is the same as the orientation of the front surface of the blade.

2. The drain impeller of claim 1, wherein the axial direction of said vanes is at an angle to the axial direction of said core.

3. The drainage impeller of claim 2 wherein said included angle is between 15 degrees and 45 degrees.

4. A discharge impeller according to claim 3, wherein the vanes are twisted.

5. The drain impeller of claim 4, wherein the width of the water-repelling portion is the same as the width of the blade.

6. A discharge impeller according to any one of claims 1 to 5, wherein the number of blades is four.