Static mixer
By designing structures with smaller inner diameters of the pipe wall, baffles and crushing components, and cross-set guides in the static mixer, the problem of poor mixing effect of existing static mixers is solved, and the versatility and efficient mixing effect of liquid-liquid, gas-liquid and solid-liquid mixing is achieved.
Patent Information
- Application Number
- CN202421814179.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Existing static mixers lack a design that can be used for liquid-liquid mixing, gas-liquid mixing and solid-liquid mixing, and the mixing effect is not good.
A static mixer is designed, and the inner diameter of the pipe wall becomes smaller along the direction of the mixture flow, and is provided with a first baffle, a second baffle and a crushing assembly. One end of the second baffle is provided with cross-arranged guides, which form a high-speed shearing effect through the crossing area of the guides, and further particles are broken at the crushing assembly.
The versatility of liquid-liquid, gas-liquid and solid-liquid mixing is achieved, and the mixing effect is significantly improved. The mixture forms high-speed shear and particle crushing under the action of the guide plate and crushing assembly, which significantly improves the mixing degree.
Smart Images
Figure CN222816622U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mixing devices, in particular to a static mixer. Background Art
[0002] As the name implies, a static mixer has no moving parts inside. It uses the contact between the fluid and the fixed unit in the tube to change the flow state and achieve the effect of mixing different fluids. Static mixers usually have openings at only two ends, or a branch pipe opening is added on the outside of the tube wall. Existing static mixers usually have different structural designs for liquid-liquid mixing, gas-liquid mixing, and solid-liquid mixing. There is a lack of a static mixer that can be used for liquid-liquid mixing, gas-liquid mixing, and solid-liquid mixing, and has a good mixing effect.
[0003] In summary, there is an urgent need for a static mixer to solve the problems existing in the prior art. Utility Model Content
[0004] The utility model aims to provide a static mixer, and the specific technical scheme is as follows:
[0005] A static mixer, comprising:
[0006] a tube wall, wherein the inner diameter of the tube wall decreases along the flow direction of the mixture;
[0007] Inside the pipe wall, a first baffle, a second baffle and a crushing assembly are sequentially arranged along the flow direction of the mixture;
[0008] One end of the second baffle is provided with a first guide vane and a second guide vane, and the other end is provided with a third guide vane and a fourth guide vane;
[0009] The first guide blade and the second guide blade are arranged crosswise, and the third guide blade and the fourth guide blade are arranged crosswise.
[0010] Preferably, the first baffle is arranged perpendicular to the second baffle.
[0011] Preferably, the first guide vane and the second guide vane are symmetrically distributed about the center line of the tube wall, and the first guide vane and the second guide vane are inclined relative to the cross section of the tube wall;
[0012] The third guide vane and the fourth guide vane are symmetrically distributed about the center line of the tube wall, and the first guide vane and the second guide vane are inclined relative to the cross section of the tube wall.
[0013] Preferably, the inner diameter of the tube wall in the coverage area of the first guide vane and the second guide vane gradually decreases, and the inner diameter of the tube wall in the coverage area of the third guide vane and the fourth guide vane gradually decreases.
[0014] Preferably, the crushing assembly comprises a plurality of protrusions, and the protrusions are radially arranged in the pipe wall along the flow direction of the mixture.
[0015] Preferably, the protrusion is a fan-shaped wing-shaped protrusion or a spherical protrusion.
[0016] Preferably, a third baffle is provided in the intersection area of the third guide vane and the fourth guide vane, and the third baffle is arranged along the flow direction of the mixture.
[0017] The application of the technical solution of the utility model has the following beneficial effects:
[0018] Compared with the prior art, the static mixer disclosed in the utility model has a better mixing effect. When the static mixer disclosed in the utility model is used, the mixture enters from the front inlet, is split into two streams at the first baffle, becomes a rotating fluid through the first guide vane and the second guide vane, and is accelerated when the inner diameter of the tube wall is reduced. The fluid is further sheared at a high speed through the third guide vane and the fourth guide vane, and a cavity is generated at the center of the tube wall after the third guide vane and the fourth guide vane due to the negative pressure. The mixture vibrates violently due to the cavitation phenomenon, which improves the mixing effect. In the second half of the tube wall, the high-speed rotating mixed liquid contacts the crushing component, further crushes the particles, and further improves the mixing effect.
[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0021] In the attached picture:
[0022] Figure 1 It is a structural schematic diagram of a static mixer in a preferred embodiment of the utility model;
[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of the second baffle and the guide vane.
[0024] Description of main component symbols:
[0025] 1. Tube wall; 2. First baffle; 3. Second baffle; 4. Crushing assembly; 5. First guide vane; 6. Second guide vane; 7. Third guide vane; 8. Fourth guide vane; 9. Third baffle; A-intersection area. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.
[0027] Example:
[0028] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of a static mixer in a preferred embodiment of the utility model; Figure 2 yes Figure 1 Schematic diagram of the structure of the second baffle and the guide vane.
[0029] like Figure 1 As shown, this embodiment discloses a static mixer, comprising:
[0030] A tube wall 1, wherein the inner diameter of the tube wall 1 decreases along the flow direction of the mixture;
[0031] Inside the pipe wall 1, a first baffle 2, a second baffle 3 and a crushing assembly 4 are arranged in sequence along the flow direction of the mixture;
[0032] The second baffle plate 3 is provided with two groups of guide vanes in sequence along the flow direction of the mixture, one end of the second baffle plate 3 is provided with a first guide vane 5 and a second guide vane 6, and the other end is provided with a third guide vane 7 and a fourth guide vane 8;
[0033] The first guide vane 5 and the second guide vane 6 are arranged crosswise, and the third guide vane 7 and the fourth guide vane 8 are arranged crosswise.
[0034] In this embodiment, the first baffle plate 2 is disposed perpendicular to the second baffle plate 3 .
[0035] like Figure 2 As shown, the first guide vane 5 and the second guide vane 6 are symmetrically distributed about the center line of the pipe wall 1, and the first guide vane 5 and the second guide vane 6 are inclined relative to the cross section of the pipe wall 1; the third guide vane 7 and the fourth guide vane 8 are symmetrically distributed about the center line of the pipe wall 1, and the third guide vane 7 and the fourth guide vane 8 are inclined relative to the cross section of the pipe wall 1. In this embodiment, the guide vanes are arranged to intersect at a certain angle to form a flow control port, and the guide vanes can shear the mixture.
[0036] In this embodiment, the inner diameter of the tube wall 1 in the coverage area of the first guide vane 5 and the second guide vane 6 gradually decreases, and the inner diameter of the tube wall 1 in the coverage area of the third guide vane 7 and the fourth guide vane 8 gradually decreases. In this embodiment, the inner diameter of the tube wall 1 in the coverage area of the guide vanes gradually decreases, specifically, the tapered tube wall 1, the tapered tube wall 1 cooperates with the intersecting guide vanes to accelerate the mixture while shearing it, thereby achieving high-speed shearing of the mixture.
[0037] It should be noted that, in this embodiment, the arc edge of the guide vane contacts the tube wall 1 without any gap.
[0038] Specifically, the crushing assembly 4 includes a plurality of protrusions, and the protrusions are radially arranged in the pipe wall 1 along the flow direction of the mixture.
[0039] In a more specific embodiment, the protrusions are fan-shaped wing-shaped protrusions or spherical protrusions. In low-viscosity situations, the protrusions can be fan-shaped wing-shaped protrusions, and the fan-shaped wing-shaped protrusions are arranged facing away from the fluid; in high-viscosity situations, the protrusions can be spherical protrusions.
[0040] In this embodiment, the intersection area A of the third guide vane 7 and the fourth guide vane 8 is a flow control port, and a third baffle 9 is provided in the intersection area A. The third baffle 9 is provided along the flow direction of the mixture. It should be noted that the third baffle 9 in this embodiment can be in any position and shape and size, and is used to change the flow state of the mixture and improve the mixing effect.
[0041] The static mixer disclosed in this embodiment can realize different functions according to pressure control, and can be used for liquid-liquid mixing, gas-liquid mixing and solid-liquid mixing. Through experimental observation, when the pressure is lower than 0.5MPa, it can meet the mixing requirements, and when the pressure is between 0.5 and 0.8MPa, it can achieve an emulsification effect, and the particle size can be within 10μm.
[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A static mixer, characterized in that: include: A tube wall (1), wherein the inner diameter of the tube wall (1) decreases along the flow direction of the mixture; A first baffle (2), a second baffle (3) and a crushing assembly (4) are sequentially arranged in the pipe wall (1) along the flow direction of the mixture; The second baffle (3) is provided with two groups of guide vanes in sequence along the flow direction of the mixture, one end of the second baffle (3) is provided with a first guide vane (5) and a second guide vane (6), and the other end is provided with a third guide vane (7) and a fourth guide vane (8); The first guide blade (5) and the second guide blade (6) are arranged crosswise, and the third guide blade (7) and the fourth guide blade (8) are arranged crosswise.
2. The static mixer according to claim 1, characterized in that The first baffle (2) is arranged perpendicular to the second baffle (3).
3. The static mixer according to claim 1, characterized in that The first guide vane (5) and the second guide vane (6) are symmetrically distributed about the center line of the tube wall (1), and the first guide vane (5) and the second guide vane (6) are arranged obliquely relative to the cross section of the tube wall; The third guide vane (7) and the fourth guide vane (8) are symmetrically distributed about the center line of the tube wall (1), and the third guide vane (7) and the fourth guide vane (8) are arranged obliquely relative to the cross section of the tube wall.
4. The static mixer according to claim 1, characterized in that The inner diameter of the tube wall (1) located in the coverage area of the first guide vane (5) and the second guide vane (6) gradually decreases, and the inner diameter of the tube wall (1) located in the coverage area of the third guide vane (7) and the fourth guide vane (8) gradually decreases.
5. The static mixer according to claim 1, characterized in that The crushing assembly (4) comprises a plurality of protrusions, which are radially arranged inside the pipe wall (1) along the flow direction of the mixture.
6. The static mixer according to claim 5, characterized in that The protrusions are fan-shaped wing-shaped protrusions or spherical protrusions.
7. The static mixer according to claim 1, characterized in that A third baffle plate (9) is provided in the intersection area between the third guide vane (7) and the fourth guide vane (8), and the third baffle plate (9) is arranged along the flow direction of the mixture.