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Sweepback type disc turbine stirring impeller

A disk turbine stirring and sweeping technology, which is applied to mixers, dissolvers, and mixers with rotating stirring devices, can solve the problems of high stirring power consumption and poor mass transfer effect, and achieve enhanced stirring effect, The effect of promoting mass transfer between phases and reducing stirring resistance

Active Publication Date: 2021-12-03
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems of poor mass transfer effect and high stirring power consumption in gas-liquid mixing, the object of the present invention is to provide a back-swept disc turbine impeller. Compared with the prior art, the disc turbine impeller provided by the present invention Can effectively reduce stirring power consumption and improve gas-liquid mass transfer performance

Method used

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  • Sweepback type disc turbine stirring impeller
  • Sweepback type disc turbine stirring impeller
  • Sweepback type disc turbine stirring impeller

Examples

Experimental program
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Effect test

Embodiment 1

[0046]This embodiment provides a back-swept disc turbine impeller, which includes a disc 4, a paddle 3 and a stirring shaft 1, and the bottom of the stirring shaft 1 is connected to the disc 4 through a hub 2 , the paddle 3 is obtained by extending outward from the radially inner edge 6 along the radial extension line 9 of the paddle to the radially outer edge 7, and the paddle 3 is arranged along the circumference of the disc 4; the paddle The blade 3 is divided into an upper part and a lower part with the horizontal plane where the disc 4 is located; the blade radial extension line 9 at the junction of the upper part and the lower part is a curved structure; the liquid-facing surface 5 of the blade 3 Inwardly recessed and swept back along the radial extension of the blade.

[0047] Two paddles 3 are evenly distributed on the disc 4, the blade radial extension line 9 of the paddle 3 is a parabola, the upper and lower parts of the paddle 3 are symmetrical structures, and the p...

Embodiment 2

[0055] This embodiment provides a back-swept disc turbine impeller, which includes a disc 4, a paddle 3 and a stirring shaft 1, and the bottom of the stirring shaft 1 is connected to the disc 4 through a hub 2 , the paddle 3 is obtained by extending outward from the radially inner edge 6 along the radial extension line 9 of the paddle to the radially outer edge 7, and the paddle 3 is arranged along the circumference of the disc 4; the paddle The blade 3 is divided into an upper part and a lower part with the horizontal plane where the disc 4 is located; the blade radial extension line 9 at the junction of the upper part and the lower part is a curved structure; the liquid-facing surface 5 of the blade 3 Inwardly recessed and swept back along the radial extension of the blade.

[0056] 10 paddles 3 are evenly distributed on the disc 4, the blade radial extension line 9 of the paddle 3 is an elliptical arc, the upper and lower parts of the paddle 3 are symmetrical structures, an...

Embodiment 3

[0064] This embodiment provides a back-swept disc turbine impeller, which includes a disc 4, a paddle 3 and a stirring shaft 1, and the bottom of the stirring shaft 1 is connected to the disc 4 through a hub 2 , the paddle 3 is obtained by extending outward from the radially inner edge 6 along the radial extension line 9 of the paddle to the radially outer edge 7, and the paddle 3 is arranged along the circumference of the disc 4; the paddle The blade 3 is divided into an upper part and a lower part with the horizontal plane where the disc 4 is located; the blade radial extension line 9 at the junction of the upper part and the lower part is a curved structure; the liquid-facing surface 5 of the blade 3 Inwardly recessed and swept back along the radial extension of the blade.

[0065] Six paddles 3 are uniformly distributed on the disc 4, the blade radial extension line 9 of the paddle 3 is a circular arc, the upper and lower parts of the paddle 3 are symmetrical structures, a...

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Abstract

The invention relates to a sweepback type disc turbine stirring impeller. The sweepback type disc turbine stirring impeller comprises a disc, paddles and a stirring shaft, wherein the paddles are arranged in the circumferential direction of the disc; each paddle is divided into an upper part and a lower part by taking a horizontal plane on which the disc is positioned as a boundary; a radial paddle extension line at the junction of the upper part and the lower part of each paddle is of a curve structure; each curve structure comprises an arc, a parabola or an elliptic arc line; and the liquid facing surfaces of the paddles inwards form recesses and sweep back along the radial paddle extension lines. The sweepback type disc turbine stirring impeller provided by the invention can reduce stirring power consumption, improve gas-liquid mass transfer performance and enhance a gas-liquid mixing effect, and is widely applied to the fields of chemical engineering, metallurgy, pharmacy, water treatment and the like.

Description

technical field [0001] The invention relates to the stirring field, in particular to a back-swept disc turbine stirring paddle. Background technique [0002] In the chemical industry, stirring equipment is one of the most common reaction equipment. It has the advantages of flexible operation and easy control in the mass transfer process. It is widely used in chemical, environmental protection, metallurgy and pharmaceutical fields, and occupies an important position in industrial production applications very important position. [0003] The stirring paddle is the core component of the stirring equipment and an important factor affecting the performance of the stirring equipment. According to the flow state of the fluid in the stirring equipment, the stirring paddles can be divided into radial paddles, axial paddles and mixing paddles. Among them, the disc turbine paddle in the radial paddle is widely used in the gas-liquid stirring process. Since the 1950s, gas-liquid mixi...

Claims

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Application Information

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IPC IPC(8): B01F7/00B01F7/18
Inventor 张庆华贾卓泰杨超毛在砂张帅锋郭梦珂
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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