CN105268342B

CN105268342B - Low-shear static mixer

Info

Publication number: CN105268342B
Application number: CN201410340237.4A
Authority: CN
Inventors: 缪俊
Original assignee: Summit Quzhou Electronic Science And Technology Co Ltd
Current assignee: Nanning Heping Rosin Factory
Priority date: 2014-07-17
Filing date: 2014-07-17
Publication date: 2019-06-07
Anticipated expiration: 2034-07-17
Also published as: CN105268342A

Abstract

The invention discloses a kind of low-shear static mixers, it is characterized by comprising shells and liner, shell and liner are revolving body, shell both ends are equipped with the flange of connecting pipe, shell is divided into three sections, and centre is outer mixing section, and outer mixing section two sides are respectively outer reducer, outer reducer small-caliber end and flanged joint, large diameter end are connect with mixing section；Liner is placed in interior of shell, liner is coaxial with shell, it is an axial annular channel between liner and shell, liner both ends are fixed by the bracket on the inside of flange, and liner is divided into three sections, and centre is interior mixing section, interior mixing section axial length and outer mixing section are isometric, interior mixing section two sides are interior reducer, and the interior inside mixing section of reducer extends, and are gradually reduced with the radial spacing of outer reducer；Interior mixing section and outer mixing section opposite face are the waveform revolving body of opposite in phase；Mixed process process resistance is small, and shearing is low can maximumlly to retain fluid viscosity, and structure is simply easy to implement, is suitable for popularization and application.

Description

Low-shear static mixer

Technical field

The present invention relates to a kind of mixer, more particularly to a kind of low-shear static mixer, for high viscosity liquid with The mixing of other liquid.

Background technique

It is frequently necessary to mix a kind of high viscosity liquid with other liquid in production fields such as pharmacy, oil field, chemical industry, Currently used static mixer is many kinds of, between mixing uniformity and shearing be when use it is contradictory, need biggish cut Cutting can just be such that mixed liquor is preferably mixed, if it is desired to the uniformity of mixing, especially oil field certainly will be sacrificed by obtaining low sheraing It is very sensitive for shearing when being mixed with polymer solution, with above-mentioned static mixer, can not be obtained with lower shearing high Mixing uniformity is unable to satisfy polymer solution etc. and mixes demanding fluid mixing.

Summary of the invention

In order to overcome the problems, such as that existing static mixer shear strength is high, the present invention provides a kind of low sheraing static mixings Device.

A kind of the technical solution adopted by the present invention are as follows: low-shear static mixer, it is characterised in that including shell and liner, Shell and liner are revolving body, and shell both ends are equipped with the flange of connecting pipe, and shell is divided into three sections, and centre is outer mixing section, Outer mixing section two sides are respectively outer reducer, and outer reducer small-caliber end and flanged joint, large diameter end are connect with mixing section；It is interior Gallbladder is placed in interior of shell, and liner is coaxial with shell, is an axial annular runner between liner and shell, and liner both ends are solid by bracket It is scheduled on the inside of flange, liner is divided into three sections, and centre is interior mixing section, and interior mixing section axial length and outer mixing section are isometric, interior mixed Conjunction section two sides are interior reducer, and the interior inside mixing section of reducer extends, and are gradually reduced with the radial spacing of outer reducer；Interior mixing Section and outer mixing section opposite face are the waveform revolving body of opposite in phase.

Further, the outer reducer large diameter end diameter is the three times of small-caliber end diameter or more.

Further, the outer reducer and the annular channel radial section product between interior reducer are equal everywhere.

The present invention is ironed by its by reducer in use, two or more pressure fluid is entered by a side flange, Ironed process can reach the mutual blending between fluid, then reach mixing section, since interior mixing section and outer mixing section opposite face are The waveform revolving body of opposite in phase, close to forming an annular catwalk at wave crest, far from forming a loop buffer chamber at trough, The channel that an axial cross section is in similar sugarcoated haws type is formed, fluid-mixing is accelerated through repeatedly ironed by mixing section catwalk Blending mixing enters at a high speed the slower cushion chamber of flow velocity and is mixed, this process resistance is small, and shearing is low maximumlly to be protected Fluid viscosity is stayed, structure is simply easy to implement, is suitable for popularization and application.

Detailed description of the invention

Fig. 1 is entirety of embodiment of the present invention configuration schematic diagram.

Fig. 2 is the schematic diagram of the section structure of the present invention.

Figure label title: 1 shell；11 outer mixing sections；12,13 outer reducer；2 liners；Mixing section in 21；22, in 23 Reducer；3 brackets.

Specific embodiment

The embodiment of the present invention is as shown in Figure 1, 2, which is equipped with shell 1 and liner 2, shell and liner It is revolving body, shell both ends are equipped with the flange of connecting pipe, and shell is divided into three sections, and centre is outer mixing section 11, outer mixing section By flanged joint, outer mixing section two sides are respectively outer reducer 12,13, outer reducer small-caliber end and flanged joint for centre, Large diameter end is connect with mixing section；Liner is placed in interior of shell, and liner is coaxial with shell, is an axial annular between liner and shell Runner, liner both ends are fixed on the inside of flange by bracket 3, and liner is divided into three sections, and centre is interior mixing section 21, interior mixing section axis Isometric to length and outer mixing section, interior mixing section two sides are interior reducer 22,23, and the inside mixing section of interior reducer extends, and outer The radial spacing of reducer is gradually reduced；Interior mixing section and outer mixing section opposite face are the waveform revolving body of opposite in phase, wave crest Place, far from a loop buffer chamber is formed, forms an axial cross section in similar sugared calabash at the annular catwalk of formation one, trough The channel of reed type；The present invention is not easy mistake occur in use, distinguishing installation without direction, two or more pressure fluid Entered by a side flange, by reducer that its is ironed, ironed process can reach the mutual blending between fluid, and then mixed liquor arrives Up to mixing section, since the radial section of catwalk and cushion chamber product is different, flow velocity is also just different, and fluid-mixing passes through mixing section Ironed blending is accelerated to mix when catwalk, the mixed liquor high velocity stream after acceleration is mixed after entering the slower cushion chamber of flow velocity, Then accelerate ironed mixing again again and mixing of slowing down, for reciprocation cycle until mixing sufficiently, whole process resistance is small, and shearing is low can Maximumlly to retain fluid viscosity, structure is simply easy to implement, is suitable for popularization and application.

When it is implemented, outer reducer large diameter end diameter can be set as the three times of small-caliber end diameter or more, not In the case where reducing runner effective sectional area, by the thinner of mixed liquor compression, ironed mixed effect is improved；Cushion chamber can be according to need Setting, i.e., length of mixing can flexible setting；It can be by the annular channel radial section between outer reducer and interior reducer when implementation Product is set as equal everywhere, makes its ironed mixing liquid stress in the process more evenly.

It is in summary only present pre-ferred embodiments, all equivalent modifications done according to the application and prior art addition are equal It is considered as the technology of the present invention scope.

Claims

1. a kind of low-shear static mixer, it is characterised in that including shell and liner, shell and liner are revolving body, shell Both ends are equipped with the flange of connecting pipe, and shell is divided into three sections, and centre is outer mixing section, and outer mixing section two sides are respectively outer variable diameter Section, outer reducer small-caliber end and flanged joint, large diameter end are connect with outer mixing section；Liner is placed in interior of shell, liner with Shell is coaxial, is an axial annular runner between liner and shell, and liner both ends are fixed by the bracket on the inside of flange, and liner is divided into Three sections, centre is interior mixing section, and interior mixing section axial length and outer mixing section are isometric, and interior mixing section two sides are interior reducer, interior The inside mixing section of reducer extends, and is gradually reduced with the radial spacing of outer reducer；Interior mixing section and outer mixing section are integrally in round Tubular, interior mixing section and outer mixing section opposite face are the waveform revolving body of opposite in phase, interior mixing section, outer mixing section both ends difference It is connected by the wave crest at waveform revolving body both ends with outer reducer, interior reducer, the annular flow between outer reducer and interior reducer Radial section product in road is equal everywhere.

2. low-shear static mixer according to claim 1, feature are in the outer reducer large diameter end diameter It is more than the three times of small-caliber end diameter.