CN105268342A

CN105268342A - Low shear static state mixer

Info

Publication number: CN105268342A
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: 2016-01-27
Anticipated expiration: 2034-07-17
Also published as: CN105268342B

Abstract

The present invention discloses a low shear static state mixer, comprising a housing and an inner container, the housing and the inner container are revolving bodies, both ends of the housing are provided with flanges for connection with pipelines, the housing is divided into three sections, the middle section is an outer mixing section, the two sides of the outer mixing section are respectively outer variable diameter sections, the small-diameter ends of the variable diameter sections are connected with the flanges, the large-diameter ends of the variable diameter sections are connected with the mixing section; the inner container is disposed inside the housing, the inner container and the housing are coaxial, an axial annular flow path is arranged between the inner container and the housing, both ends of the inner container are fixed on the inside of the flanges by a bracket, the interior container is divided into three sections, the middle section is an inner mixing section, the axial lengths of the inner mixing section and the outer mixing section are equal, the two sides of the inner mixing section are inner variable diameter sections, the inner variable diameter sections extend toward the inner mixing section, the radial distance between the inner variable diameter sections and the outer variable diameter sections gradually decreases; the opposite sides of the inner mixing section and the outer mixing section are waveform revolving bodies with opposite phases; in the mixing process, the process resistance is small, the retention of the viscosity of the fluid can be maximized due to the low shear, and the structure is simple and easy to implement, and is suitable for popularization and application.

Description

Low-shear static mixer

Technical field

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

Background technology

In pharmacy, oil field, the production fields such as chemical industry often need a kind of high viscosity liquid to mix with other liquid, static mixer conventional is at present of a great variety, contradiction between mixing uniformity and shearing during use, need larger shearing that mixed liquor just can be made to be mixed preferably, if want to obtain the uniformity that low sheraing certainly will sacrifice mixing, particularly very responsive for shearing during the mixing of oilfield polymer solution, use above-mentioned static mixer, high mixing uniformity cannot be obtained with lower shearing, the mixing such as polymer solution cannot be met and require high fluid chemical field.

Summary of the invention

In order to overcome the high problem of existing static mixer shear strength, the invention provides a kind of low-shear static mixer.

The technical solution used in the present invention is: a kind of low-shear static mixer, it is characterized in that comprising shell and inner bag, shell and inner bag are revolving body, shell two ends are provided with the flange of connecting pipe, shell is divided into three sections, and centre is outer mixing section, and outer mixing section both sides are respectively outer reducer, outer reducer small-caliber end and Flange joint, heavy caliber end is connected with mixing section; Inner bag is placed in enclosure, inner bag is coaxial with shell, it is an axial annular runner between inner bag and shell, inner bag two ends are fixed on inside flange by support, and inner bag is divided into three sections, and centre is interior mixing section, interior mixing section axial length and outer mixing section isometric, interior mixing section both sides are interior reducer, and the inside mixing section of interior reducer extends, and reduces gradually with the radial spacing of outer reducer; Interior mixing section and outer mixing section opposite face are the waveform revolving body that phase place is contrary.

Further, described outer reducer heavy caliber end diameter is more than three times of small-caliber end diameter.

Further, described outer reducer is long-pending equal everywhere with the annular channel radial section between interior reducer.

When the present invention uses, two or more pressure fluid is entered by a side flange, by reducer, it is ironed, ironed process can reach the mutual blending between fluid, then mixing section is arrived, because interior mixing section and outer mixing section opposite face are the waveform revolving body that phase place is contrary, crest place is near forming an annular catwalk, trough place is away from formation one loop buffer chamber, form the passage that an axial cross section is similar sugarcoated haws type, fluid-mixing is accelerated through repeatedly ironed blending mixing by mixing section catwalk, the cushion chamber entering flow velocity slower at a high speed mixes, this process resistance is little, shear low can maximized reservation fluid viscosity, structure is simply easy to implement, be suitable for applying.

Accompanying drawing explanation

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

Fig. 2 is cross-sectional view of the present invention.

Number in the figure title: 1 shell; 11 outer mixing sections; 12,13 outer reducers; 2 inner bags; Mixing section in 21; 22, reducer in 23; 3 supports.

Detailed description of the invention

The embodiment of the present invention as shown in Figure 1, 2, this low-shear static mixer is provided with shell 1 and inner bag 2, shell and inner bag are revolving body, shell two ends are provided with the flange of connecting pipe, and shell is divided into three sections, and centre is outer mixing section 11, Flange joint is passed through in the middle of outer mixing section, outer mixing section both sides are respectively outer reducer 12,13, outer reducer small-caliber end and Flange joint, and heavy caliber end is connected with mixing section, inner bag is placed in enclosure, inner bag is coaxial with shell, it is an axial annular runner between inner bag and shell, inner bag two ends are fixed on inside flange by support 3, and inner bag is divided into three sections, and centre is interior mixing section 21, interior mixing section axial length and outer mixing section isometric, interior mixing section both sides are interior reducer 22,23, and the inside mixing section of interior reducer extends, and reduces gradually with the radial spacing of outer reducer, interior mixing section and outer mixing section opposite face are the waveform revolving body that phase place is contrary, and crest place is near forming an annular catwalk, and trough place, away from formation one loop buffer chamber, forms the passage that an axial cross section is similar sugarcoated haws type, when the present invention uses, do not have direction to distinguish installation to be not easy to occur mistake, two or more pressure fluid is entered by a side flange, by reducer, it is ironed, ironed process can reach the mutual blending between fluid, then mixed liquor arrives mixing section, because the radial section of catwalk and cushion chamber is long-pending different, flow velocity is also just different, fluid-mixing is by accelerating ironed blending mixing during mixing section catwalk, mixed liquor high velocity stream after acceleration mixes after entering the slower cushion chamber of flow velocity, and then again accelerate ironed mixing and mixing of slowing down, reciprocation cycle is until mixing is abundant, whole process resistance is little, shear low can maximized reservation fluid viscosity, structure is simply easy to implement, be suitable for applying.

During concrete enforcement, outer reducer heavy caliber end diameter can be set to more than three times of small-caliber end diameter, when not reducing runner net sectional area, that is compressed by mixed liquor is thinner, improves ironed mixed effect; Cushion chamber can be arranged according to needing, and namely length of mixing can be arranged flexibly; During enforcement can by long-pending for the annular channel radial section between outer reducer with interior reducer be set to equal everywhere, make mixing material in its ironed process stressed evenly.

Be only present pre-ferred embodiments in sum, all equivalence modifications of doing according to the application and prior art are added and are all considered as the technology of the present invention category.

Claims

1. a low-shear static mixer, it is characterized in that comprising shell and inner bag, shell and inner bag are revolving body, shell two ends are provided with the flange of connecting pipe, shell is divided into three sections, and centre is outer mixing section, and outer mixing section both sides are respectively outer reducer, outer reducer small-caliber end and Flange joint, heavy caliber end is connected with mixing section; Inner bag is placed in enclosure, inner bag is coaxial with shell, it is an axial annular runner between inner bag and shell, inner bag two ends are fixed on inside flange by support, and inner bag is divided into three sections, and centre is interior mixing section, interior mixing section axial length and outer mixing section isometric, interior mixing section both sides are interior reducer, and the inside mixing section of interior reducer extends, and reduces gradually with the radial spacing of outer reducer; Interior mixing section and outer mixing section opposite face are the waveform revolving body that phase place is contrary.

2. low-shear static mixer according to claim 1, its feature is more than three times of small-caliber end diameter at described outer reducer heavy caliber end diameter.

3. low-shear static mixer according to claim 1 and 2, its feature is long-pending equal everywhere with the annular channel radial section between interior reducer at described outer reducer.