CN112791618A - Stirrer with spiral curved surface stirring baffle - Google Patents

Abstract

The application discloses agitator with helical surface stirring baffle, it includes: barrel, stirring paddle leaf and stirring baffle, the barrel includes inner wall and outer wall, the barrel has the inner chamber, stirring paddle leaf is located the inner chamber, the baffle with inner wall fixed connection just extend in the inner chamber, stirring paddle leaf is located the inner chamber, stirring paddle leaf can rotate and drive the medium and go up and down and rotate in the agitator, stirring baffle is the toroidal form, stirring baffle extends along the inner wall spiral. This application adopts the spiral baffle, revolves to relative with the stirring direction, and the angle is perpendicular with synthetic slant flow direction, will increase the vortex, increases stirring efficiency. Meanwhile, if the equipment contains an external pressure working condition, the spiral baffle plate has a reinforcing effect on the resistance of the cylinder to external pressure, the thickness of the cylinder can be reduced under certain conditions, and the cost is saved.

Description

Stirrer with spiral curved surface stirring baffle

Technical Field

The application relates to a stirrer, in particular to a stirrer with a spiral curved surface stirring baffle.

Background

In some reaction/mixing equipment with a stirrer, a stirring blade is required to drive a medium to lift and rotate in the equipment so as to homogenize materials and improve the reaction efficiency.

The stirring blade causes a liquid flow with three velocities: axial velocity, radial velocity, tangential velocity. If the liquid flow is in the tank without baffles, the axial and tangential velocities may combine to form an upward oblique flow direction. The baffle is generally parallel to the stirring shaft (axial direction of the device), and only blocks tangential flow to generate turbulent flow.

Disclosure of Invention

The technical problem that this application will solve lies in: provides a stirrer with a spiral curved surface stirring baffle plate and good air tightness.

In order to solve the technical problem, the technical scheme of the application is as follows:

a beater having a helically curved mixing baffle, comprising: barrel, stirring paddle leaf and stirring baffle, the barrel includes inner wall and outer wall, the barrel has the inner chamber, stirring paddle leaf is located the inner chamber, the baffle with inner wall fixed connection just extend in the inner chamber, stirring paddle leaf is located the inner chamber, stirring paddle leaf can rotate and drive the medium and go up and down and rotate in the agitator, stirring baffle is the toroidal form, stirring baffle extends along the inner wall spiral.

Compared with the prior art, this application adopts the spiral baffle, and it is relative with the stirring direction to revolve to, and the angle will increase the vortex with synthetic slant flow direction is perpendicular, increases stirring efficiency. Meanwhile, if the equipment contains an external pressure working condition, the spiral baffle plate has a reinforcing effect on the resistance of the cylinder to external pressure, the thickness of the cylinder can be reduced under certain conditions, and the cost is saved.

Further, the barrel includes the diapire, the diapire is circular-arc, stirring baffle's one end is close to the diapire, stirring baffle's the other end is close to the top of agitator.

Further, stirring baffle includes the bottom surface that faces towards the diapire and deviates from the top surface of diapire, bottom surface and top surface are the helical surface form.

Further, the radius of the cylinder is R, the width of the stirring baffle is W, and R/W is more than or equal to 1 and less than or equal to 10.

Further, the radius of the cylinder is R, the width of the stirring baffle is W, and R/W is more than or equal to 3 and less than or equal to 7.

Further, the radius of barrel is R, the width of stirring baffle is W, wherein R/W equals 5.

Further, the longitudinal section of the bottom wall is arc-shaped, and the cross section of the bottom wall is circular.

Further, the stirring blade is closer to the bottom of the stirrer than to the top of the stirrer.

Furthermore, the stirring baffle is fixedly connected with the inner wall of the cylinder body in an adhering way,

or the stirring baffle plate and the inner wall of the cylinder body are welded in a double-sided mode through fillet welds.

Further, stirring baffle and barrel integrated into one piece.

Drawings

FIG. 1 is a perspective view of a mixer having a helically curved mixing baffle according to an embodiment of the present application.

FIG. 2 is an exploded view of a mixer having a helically curved mixing baffle according to an embodiment of the present application.

FIG. 3 is a schematic cross-sectional view of an agitator having helically curved agitator baffles according to an embodiment of the present application.

FIG. 4 is another schematic cross-sectional view of an agitator having helically curved agitator baffles according to an embodiment of the present application.

FIG. 5 is a schematic top view of a stirrer having a helically curved stirring baffle according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; "plurality" means two or more than two. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

The piping connection assembly according to the exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments can be supplemented or combined with each other without conflict.

A mixer 10 having helically curved mixing baffles as illustrated in fig. 1 to 5, comprising: barrel 11, stirring paddle 12 and stirring baffle 13.

The cylinder 11 comprises an inner wall 111 and an outer wall 112, the cylinder 11 has an inner cavity 113, and the stirring blade 12 is located in the inner cavity 113. The stirrer 10 comprises a power device (not shown) and a rotating shaft 21 connected with the power device, wherein the tail end of the rotating shaft 21 is connected with the stirring paddle 12, and the rotating shaft 21 drives the stirring paddle 12 to rotate under the driving of the power device.

Stirring baffle 13 and inner wall 111 fixed connection just extend in inner chamber 113, stirring paddle 12 are located inner chamber 113, and stirring paddle 12 can rotate and drive the medium and go up and down and rotate in the agitator, and stirring baffle 13 is the spiral curved surface form, and stirring baffle 13 extends along inner wall 111 spiral. The stirring baffle 13 is spirally inclined in a whole circle, and the medium is vertically stirred, so that the stirring efficiency is increased; at the same time, the cylinder 11 is reinforced. As shown in fig. 3 and 4, the spiral stirring baffles 13 are perpendicular to the resultant flow direction, so that the stirring efficiency can be increased. According to the medium flow rate determined by the process, the resultant velocity of the axial flow rate (V1) and the radial flow rate (V2) is determined, and the rotation period of the spiral baffle 13 is designed to be perpendicular to the resultant velocity. When the device has an external pressure working condition (or comprises a jacket), the spiral stirring baffle 13 has a reinforcing effect on the resistance of the cylinder body 11 to the external pressure, the thickness of the cylinder body 11 can be reduced, and the cost is saved.

The cylinder 11 includes a bottom wall 114, the bottom wall 114 is arc-shaped, one end of the stirring baffle 13 is close to the bottom wall 114, and the other end of the stirring baffle 113 is close to the top of the stirrer 10. The stirring baffle 13 includes a bottom surface 131 facing the bottom wall 114 and a top surface 132 facing away from the bottom wall 114, the bottom surface 131 and the top surface 132 being spirally curved.

The radius of the cylinder 11 is R, the width of the stirring baffle 13 is W, wherein R/W is more than or equal to 1 and less than or equal to 10. Further, the radius of the cylinder 11 is R, the width of the stirring baffle 13 is W, wherein R/W is more than or equal to 3 and less than or equal to 7. Further, the radius of the cylinder 11 is R, and the width of the stirring baffle 13 is W, where R/W is 5. Such a size setting can enhance the stirring effect without affecting the strength of the stirring baffle 13.

The bottom wall 114 has an arc-shaped longitudinal cross section to enhance the strength of the mixer 10, and the bottom wall 114 has a circular cross section. The stirring paddle 12 is closer to the bottom 102 of the stirrer than to the top 101 of the stirrer 10. The stirring baffle 13 is fixedly connected with the inner wall 111 of the cylinder 11 in an adhering manner, or the stirring baffle 13 and the inner wall 111 of the cylinder 11 are welded in a double-sided manner through fillet welding, or the stirring baffle 13 and the cylinder 11 are integrally formed. The fillet weld and the bonding connection technology reduce the difficulty of the integral forming of the stirring baffle 13 and the cylinder body 11, and the processing complexity is reduced. The integral forming process enables the stirring baffle 13 and the barrel 11 to be free of assembling process, so that the assembling cost is lower.

Compared with the prior art, this application adopts the spiral baffle, and it is relative with the stirring direction to revolve to, and the angle will increase the vortex with synthetic slant flow direction is perpendicular, increases stirring efficiency. Meanwhile, if the equipment contains an external pressure working condition, the spiral baffle plate has a reinforcing effect on the resistance of the cylinder to external pressure, the thickness of the cylinder can be reduced under certain conditions, and the cost is saved.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and within the scope of the present invention.

Claims (10)

1. A stirrer with a helical curved stirring baffle, comprising: barrel, stirring paddle leaf and stirring baffle, the barrel includes inner wall and outer wall, the barrel has the inner chamber, stirring paddle leaf is located the inner chamber, the baffle with inner wall fixed connection just extend in the inner chamber, stirring paddle leaf is located the inner chamber, stirring paddle leaf can rotate and drive the medium and go up and down and rotate in the agitator, stirring baffle is the toroidal form, stirring baffle extends along the inner wall spiral.

2. The agitator with a helically curved agitator baffle according to claim 1, wherein: the barrel includes the diapire, the diapire is circular-arc, stirring baffle's one end is close to the diapire, stirring baffle's the other end is close to the top of agitator.

3. The agitator with a helically curved agitator baffle according to claim 2, wherein: stirring baffle includes the bottom surface that faces towards the diapire and the top surface that deviates from the diapire, bottom surface and top surface are the helical surface form.

4. A mixer having helically curved mixing baffles according to claim 3, wherein: the radius of the cylinder is R, the width of the stirring baffle is W, and R/W is more than or equal to 1 and less than or equal to 10.

5. The agitator with a helically curved agitator baffle according to claim 4, wherein: the radius of the cylinder is R, the width of the stirring baffle is W, and R/W is more than or equal to 3 and less than or equal to 7.

6. The agitator with a helically curved agitator baffle according to claim 5, wherein: the radius of barrel is R, the width of stirring baffle is W, wherein R/W equals 5.

7. The agitator with a helically curved agitator baffle according to claim 6, wherein: the longitudinal section of the bottom wall is arc-shaped, and the cross section of the bottom wall is circular.

8. The agitator with a helically curved agitator baffle according to claim 7, wherein: the stirring blade is closer to the bottom of the stirrer than to the top of the stirrer.

9. The agitator with a helically curved agitator baffle according to claim 8, wherein: the stirring baffle is fixedly connected with the inner wall of the cylinder body in an adhering way,

or the stirring baffle plate and the inner wall of the cylinder body are welded in a double-sided mode through fillet welds.

10. The agitator with a helically curved agitator baffle according to claim 8, wherein: the stirring baffle and the cylinder are integrally formed.

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