CN113877454A

CN113877454A - Static mixer

Info

Publication number: CN113877454A
Application number: CN202111225121.2A
Authority: CN
Inventors: 万里彪; 李天君; 姚滢; 祝长军; 丁昂; 吴敏; 王东星
Original assignee: Ningbo Zhongwu New Material Industry Technology Research Institute Co ltd
Current assignee: Ningbo Zhongwu New Material Industry Technology Research Institute Co ltd; Ningbo University of Technology
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-01-04

Abstract

The invention discloses a static mixer, which comprises a shell and at least four mixer units with even number, wherein each mixer unit is arranged inside the shell in a stacking way along the axial direction of the shell, each mixer unit comprises a straight beam vertical to the axial direction of the shell, a plurality of first laths, a plurality of second laths, a plurality of third laths and a plurality of fourth laths, each first lath and each second lath are arranged at a certain angle, each first lath and each second lath are alternately arranged at intervals along the axial direction of the straight beam, the first ends of the plurality of third laths are alternately arranged at intervals with the plurality of first laths, the first ends of the plurality of fourth laths are alternately arranged at intervals with the plurality of second laths, each first lath and each fourth lath are arranged in parallel and at intervals, each second lath and each third lath are arranged in parallel and at intervals, the second end of each third strip and each fourth strip abuts the inner wall of the housing.

Description

Static mixer

Technical Field

The present invention relates to a static mixer.

Background

The static mixer is one of college energy-saving devices which are being popularized abroad, and is widely applied to the fields of petroleum, chemical engineering, injection molding and the like. It has many varieties, different manufacturing techniques and different performances. The so-called "static mixer", also called "motionless mixer" or "interfacial generator", consists of a set of mixing elements packed in a section of pipe, which can be conveniently connected to a material conveying pipeline for continuous mixing operation. Ordinary mixing apparatus often has the agitating unit of various styles, the bulk ratio of equipment is great, be difficult for installation and maintenance, agitating unit generally uses mechanical motion part, so the cost is higher, can produce environmental pollution in the stirring process, static mixer among the prior art weak point lies in that the blender unit and the static mixer casing of static mixer are integrative, when static mixer produced quality problem or need overhaul in using a period, the workman overhauls and maintains inside more difficult of static mixer.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a static mixer, which can achieve the same mixing effect as common stirring equipment, can make liquid-liquid, liquid-gas and gas-gas be easily and continuously mixed, dispersed and emulsified, and the mixer unit and the static mixer shell are detachable, thereby being convenient for cleaning the mixer unit and being convenient for workers to overhaul and maintain the inside of the static mixer.

In order to solve the above technical problems, the present invention provides a static mixer, comprising a housing and a plurality of mixer units, each mixer unit being stacked inside the housing along an axial direction of the housing, each mixer unit comprising a straight beam perpendicular to the axial direction of the housing, a plurality of first slats, a plurality of second slats, a plurality of third slats and a plurality of fourth slats, each of the first slats and each of the second slats being disposed perpendicular to the straight beam, the plurality of first slats being disposed in parallel and spaced relation along a length direction of the straight beam, the plurality of second slats being disposed in parallel and spaced relation along a length direction of the straight beam, the first slats and the second slats being disposed at an angle, each of the first slats and each of the second slats being disposed in spaced relation alternately along a length direction of the straight beam, first ends of the plurality of third slats being disposed in spaced relation to the plurality of first slats, the first ends of the plurality of fourth battens are alternately arranged with the plurality of second battens at intervals, each first batten is parallel to and arranged at intervals with each fourth batten, each second batten is parallel to and arranged at intervals with each third batten, and the second ends of each third batten and each fourth batten are abutted against the inner wall of the shell;

the total number of the mixer units is n, n is more than or equal to 4 and is an even number, and the staggered angle between the straight beams of any two adjacent mixer units is 360/n degrees;

the m-th layer mixer unit obtains a mirror image body about the cross section of the shell, and then the structure obtained by rotating the mirror image body by 180 degrees by taking the axis of the shell as a rotating shaft is consistent with the structure of the (n/2) + m-th layer mixer unit, and the value range of m is a natural number from 1 to n/2.

Preferably, the plurality of first slats, the plurality of second slats, the plurality of third slats and the plurality of fourth slats are arranged in a W-shaped array, the W-shaped array extends along the axial direction of the straight beam, and the plurality of first slats, the plurality of second slats, the plurality of third slats and the plurality of fourth slats have the same width.

Preferably, each first lath and each second lath form an included angle of 60-90 degrees.

Preferably, each third lath and each first lath form an included angle of 60-90 degrees.

Preferably, each fourth lath and each second lath form an included angle of 60-90 degrees.

Preferably, the shell is in a hollow cylindrical shape, and a plurality of locking grooves are uniformly distributed on the top surface of the shell in the axial direction of the shell.

After adopting the structure, compared with the prior art, the invention has the following advantages: at least four mixer units with even number are arranged in the shell in a laminated manner along the axial direction of the shell, so that the static mixer has the advantages of small volume, compact structure, easiness in installation and convenience in maintenance; the static mixer is not provided with mechanical moving parts and only provided with a mixer unit, so the cost is lower; the mixer units in the static mixer are arranged in a staggered manner, so that complicated flow channels are formed in the shell, when fluid flows through the mixer units on each layer, the fluid can be continuously shunted, the flow direction is changed, then the fluid is converged again, a good mixing effect can be achieved after the fluid flows through the mixer units on each layer repeatedly, the static mixer is suitable for mixing of liquid-liquid, liquid-gas and gas-gas, and the fluid in the static mixer is isolated from the outside, so that the environmental pollution is prevented.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a mixing unit;

FIG. 3 is a front view of FIG. 2;

fig. 4 is a side view of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A static mixer shown in fig. 1 to 4 includes a housing 10 and a plurality of mixer units 20, each mixer unit 20 being stacked in an axial direction of the housing 10 inside the housing 10, each mixer unit 20 including a straight beam 21 perpendicular to the axis of the housing 10, a plurality of first slats 22, a plurality of second slats 23, a plurality of third slats 24 and a plurality of fourth slats 25, each of the first slats 22 and each of the second slats 23 being disposed perpendicular to the straight beam 21, the plurality of first slats 22 being disposed in parallel and spaced relation along a length direction of the straight beam 21, the plurality of second slats 23 being disposed in parallel and spaced relation along a length direction of the straight beam 21, the first slats 22 and the second slats 23 being disposed at an angle, each of the first slats 22 and each of the second slats 23 being disposed in spaced relation alternately along the length direction of the straight beam 21, first ends of the plurality of third slats 24 being disposed in spaced relation to the plurality of first slats 22, the first ends of the plurality of fourth laths 25 are alternately arranged with the plurality of second laths 23 at intervals, each first lath 22 is parallel to each fourth lath 25 and is arranged at intervals along the direction vertical to the axis of the straight beam 21, each second lath 23 is parallel to each third lath 24 and is arranged at intervals along the direction vertical to the axis of the straight beam 21, and the second ends of each third lath 24 and each fourth lath 25 are abutted against the inner wall of the shell 10; thus, the fluid can be mixed through the mixer unit 20 in the housing 10, and the mixer units 20 are staggered with each other, so that an intricate flow channel is formed in the housing 10, and the fluid can be continuously shunted, the flow direction can be changed, and then the fluid can be converged again when flowing through the mixer unit 20, and a good mixing effect can be achieved after the fluid is repeatedly mixed for several times.

The total number of the mixer units 20 is n, n is more than or equal to 4, n is an even number, any two adjacent mixer units 20 rotate along the axis of the shell 10 as a rotating shaft, and the staggered angle between the straight beams 21 of any two adjacent mixer units 20 is 360/n degrees;

the m-th layer of mixer units 20 obtains a mirror image body about the cross section of the shell, and then the structure obtained by rotating the mirror image body by 180 degrees by taking the axis of the shell 10 as a rotating shaft is consistent with the structure of the (n/2) th layer of mixer units 20 plus the m-th layer of mixer units 20, and the value range of m is a natural number from 1 to n/2, so that the top surface and the bottom surface of each layer of mixer units 20 can be tightly attached, and each layer of mixer units 20 in the shell 10 are more compact, small in size, easy to install and maintain and have a certain rule.

Let the mixer housing 10 be the inside diameter

Of the outer diameter of the mixer housing 10

The height h of the mixer housing 10 is 1.0 to 1.5L.

The plurality of first platesThe strips 22, the second strips 23, the third strips 24 and the fourth strips 25 are arranged in a W-shaped array, the W-shaped array extends along the axial direction of the straight beam, the first strips 22, the second strips 23, the third strips 24 and the fourth strips 25 have the same width, so that each mixer unit 20 installed inside the housing 10 can be conveniently installed, and a complicated flow passage is formed inside the housing 10, so that when fluid flows through the mixer units 20 of each layer, the fluid is continuously divided, the flow direction is changed, and then the fluid is recombined for several times, and a good mixing effect can be achieved, wherein the height e of the W-shaped element is h/n, the width of the first strips 22 and the second strips 23 is c, and the width of the gap between the first strips 22 and the second strips 23 is c₁The size of c ═ c₁0.125L, wherein the thickness d of the lath is 1-5 mm.

Each first lath 22 and each second lath 23 form an included angle of 60-90 degrees.

Each third lath 24 and each first lath 22 form an included angle of 60-90 degrees.

And each fourth lath 25 and each second lath 23 form an included angle of 60-90 degrees.

The shell 10 is hollow cylindrical, a plurality of locking grooves 11 are uniformly distributed on the top surface of the shell 10 in the axial direction of the shell 10, the width of each locking groove is 0.4-0.6L, and the depth of each locking groove is 0.05-0.08L, so that the static mixer can be tightly connected with corresponding parts.

The above description is only about the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may be modified in other structures, not limited to the above structures. In general, all changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.

Claims

1. A static mixer, comprising a housing (10) and a plurality of mixer units (20), each mixer unit (20) being arranged inside the housing (10) in a stacked manner along an axial direction of the housing (10), each mixer unit (20) comprising a straight beam (21) perpendicular to the axial direction of the housing (10), a plurality of first slats (22), a plurality of second slats (23), a plurality of third slats (24) and a plurality of fourth slats (25), each first slat (22) and each second slat (23) being arranged perpendicular to the straight beam (21), the plurality of first slats (22) being arranged in parallel and at intervals along a length direction of the straight beam (21), the plurality of second slats (23) being arranged in parallel and at intervals along the length direction of the straight beam (21), the first slats (22) and the second slats (23) being arranged at an angle, each first lath (22) and each second lath (23) are alternately arranged at intervals along the length direction of the straight beam (21), the first ends of the third laths (24) are alternately arranged with the first laths (22), the first ends of the fourth laths (25) are alternately arranged with the second laths (23), each first lath (22) and each fourth lath (25) are arranged in parallel and at intervals, each second lath (23) and each third lath (24) are arranged in parallel and at intervals, and the second ends of the third laths (24) and each fourth lath (25) are abutted against the inner wall of the shell (10);

the total number of the mixer units (20) is n, n is more than or equal to 4 and is an even number, and the staggered angle between the straight beams (21) of any two adjacent mixer units (20) is 360/n degrees;

the m-th layer mixer unit (20) obtains a mirror image body about the cross section of the shell, and then the structure obtained by rotating the mirror image body by 180 degrees by taking the axis of the shell (10) as a rotating shaft is consistent with the structure of the (n/2) + m-th layer mixer unit (20), and the value range of m is a natural number from 1 to n/2.

2. A static mixer according to claim 1, wherein said first plurality of strips (22), said second plurality of strips (23), said third plurality of strips (24) and said fourth plurality of strips (25) are arranged in a W-shaped array, said W-shaped array extending along the axial direction of the straight beam, said first plurality of strips (22), said second plurality of strips (23), said third plurality of strips (24) and said fourth plurality of strips (25) having the same width.

3. A static mixer according to claim 1, wherein each first strip (22) is angled at 60 ° to 90 ° to each second strip (23).

4. A static mixer according to claim 1, wherein each third strip (24) is angled at 60 ° to 90 ° to each first strip (22).

5. A static mixer according to claim 1, wherein each fourth strip (25) is angled at 60 ° to 90 ° to each second strip (23).

6. A static mixer according to claim 1, wherein said housing (10) is hollow cylindrical, and a plurality of locking grooves (11) are uniformly formed in the top surface of said housing (10) around the axial direction of said housing (10).