SV type pipeline static mixer based on 3D printing technology
The SV-type static mixer of the interlaced corrugated plate module manufactured by 3D printing technology solves the problem of poor mixing effect of existing mixers in fluid change scenarios, realizes efficient multiple separation and cross-flow mixing, expands the scope of application and reduces costs.
Patent Information
- Application Number
- CN202422509088.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-17
AI Technical Summary
The existing SV static mixers have poor mixing effects in application scenarios where fluid types, viscosity and flow velocity changes greatly, and the internal structure complexity limits its scope of application.
The SV-type pipe static mixer manufactured by 3D printing technology realizes multiple separations and cross-flow mixing of fluids through interlaced corrugated plate modules. The mixing structure consists of multiple alternating first and second corrugated plates, and the adjacent module corrugated plates are placed vertically to enhance the mixing effect.
It significantly improves mixing efficiency, is suitable for mixing a variety of fluids, expands the scope of application of viscosity and flow rate, is simple in structure, low in cost and is easy to assemble and replace.
Smart Images
Figure CN223209302U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial wastewater fluid mixing treatment, and in particular to an SV type pipeline static mixer based on 3D printing technology. Background Art
[0002] A static mixer is a highly efficient mixing device with no moving parts. Its basic principle is to use a mixing unit fixed within a pipe to change the flow path of the fluid within the pipe, thereby achieving thorough mixing between different fluids. Common static mixers include SV static mixers, SK static mixers, SX static mixers, SH static mixers, and SL static mixers.
[0003] The mixing unit of SV static mixer is a cylindrical corrugated plate assembly with a maximum dispersion of 1 to 3 μm. The unevenness coefficient of liquid phase multiple fluids and gas phase multiple fluids is 1% to 5%. It is suitable for viscosity less than 10 2 cP (centipoise) of homogeneous fluid mixing.
[0004] Due to the complex internal mixing structure of the static mixer, the applicable viscosity has a certain limit range; at the same time, in application scenarios where the fluid type, viscosity, and flow rate vary greatly, there are problems such as difficulty in ensuring the use effect and lack of specificity. Utility Model Content
[0005] To solve the above problems, the utility model provides an SV-type pipeline static mixer based on 3D printing technology, which has high mixing efficiency, is suitable for mixing a variety of fluids, and has a wider range of applicability to viscosities and flow rates.
[0006] In order to achieve the above-mentioned purpose, the specific technical solutions adopted by the present utility model are as follows:
[0007] An SV type pipeline static mixer based on 3D printing technology, comprising:
[0008] casing;
[0009] A mixing structure is disposed within the sleeve and includes a plurality of mixing modules (in the present invention, a plurality means at least two) abutting each other; each mixing module is formed by alternating stacks of first and second corrugated plates, the corrugations of the first and second corrugated plates being inclined, and the two corrugated plates being arranged in a staggered manner, thereby forming a plurality of fluid inlets and outlets at both ends of the module and a plurality of staggered flow channels between adjacent corrugated plates from front to back; adjacent mixing modules are arranged in a manner such that the corrugated plates are perpendicular to each other;
[0010] The medicine tube interface is arranged on the sleeve wall at the front end of the mixing structure, and there are multiple medicine tube interfaces.
[0011] The above-mentioned static mixer realizes multiple mixing of fluids through the setting of the mixing structure: after a single multiphase fluid flows in along a fluid inlet and outlet, it will be directed to both sides at the first staggered flow channel, completing the division into two. The fluid will be divided into two again when it flows through the next staggered flow channel. Thus, multiple staggered flow channels are formed in the module by staggered stacking of corrugated plates, thereby realizing multiple separation and mixing of fluids. The corrugated plates of the two mixing modules are placed perpendicular to each other, so the flow pores are not through-holes. After the fluid flows out of a mixing module and flows into the new mixing module again, it will be forced to change the flow direction to complete cross-flow mixing. Thus, the multiple separation and mixing of the fluid within the module and the cross-flow mixing between modules significantly improve the mixing effect and the applicability to the mixing of diversified fluids.
[0012] Preferably, the number of corrugations of the first corrugated plate and the second corrugated plate in each mixing module is ≥3, so that there are at least two staggered flow channels between adjacent corrugated plates, thereby allowing a single stream of fluid to be separated at least twice in each module.
[0013] Preferably, the drug tube interface is connected to a drug delivery tube equipped with a peristaltic pump.
[0014] Preferably, both ends of the mixing structure are provided with retaining rings for limiting and fixing the mixing structure.
[0015] Furthermore, at least one of the two retaining rings is detachably connected to the inner wall of the sleeve to facilitate replacement of the mixing module. The detachable connection may be through bolts and nuts, or a mounting groove provided on the sleeve wall.
[0016] Preferably, the sleeve and the hybrid structure are 3D printed parts, which can ensure structural strength and stability, and high installation convenience; and the processing time is short, the cost is low, and customized production is possible.
[0017] Furthermore, the 3D printed part is made of nylon or plastic, which is acid and alkali resistant and has a long service life. It can also be made of other single or mixed materials that are suitable for 3D printing and acid and alkali resistant.
[0018] Preferably, the inner diameter of the sleeve is ≥15 mm, so that the static mixer can be made into a very small size.
[0019] The utility model has the following beneficial effects:
[0020] 1. The utility model separates and mixes the fluid multiple times by setting a mixing structure composed of mixing modules, effectively improving the mixing efficiency and mixing effect, and can mix multiple fluids at the same time. It has a wider range of applicability for viscosity and is suitable for application scenarios with large changes in fluid type, viscosity, and flow rate.
[0021] 2. The SV type pipeline static mixer of the utility model has a small overall size and can mix small flow fluids. The minimum flow rate that can be achieved is the mixing of a main fluid of 13 mL / s and a pharmaceutical agent of 34 μL / s.
[0022] 3. The SV type pipeline static mixer of the utility model has a simple structure, low cost, easy assembly and replacement of the mixing structure, and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 : Schematic diagram of the structure of the SV type pipeline static mixer based on 3D printing technology described in Example 1.
[0024] Figure 2 : Schematic diagram of the installation orientation of adjacent mixing modules in Example 1. The figure shows the first three mixing modules, and the installation method of subsequent modules can be deduced in the same way.
[0025] Figure 3 : Schematic diagram of the structure of a single mixing module in Example 1.
[0026] Figure 4 : Schematic diagram of the staggered flow channels of the mixing module and the flow direction of a single fluid in the mixing module in Example 1.
[0027] In the figure: 1-peristaltic pump, 2-drug delivery tube, 3-drug delivery tube interface, 4-casing, 5-mixing structure, 6-blocking ring; 51-mixing module; 511-first corrugated plate, 512-second corrugated plate, 513-fluid inlet and outlet, a-transverse flow channel, b-longitudinal flow channel. DETAILED DESCRIPTION
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] Example 1
[0030] An SV type pipeline static mixer based on 3D printing technology, such as Figure 1 As shown, it includes a peristaltic pump 1, a drug delivery tube 2, a drug tube interface 3, a sleeve 4, a mixing structure 5, and a retaining ring 6.
[0031] The sleeve 4 is a cylindrical structure with a hollow interior, and the mixing structure 5 is arranged inside the sleeve 4 and includes a plurality of mixing modules 51 abutting against each other. Figure 3As shown, each mixing module 51 is formed by alternating stacking of a first corrugated plate 511 and a second corrugated plate 512. The corrugations of the first corrugated plate 511 and the second corrugated plate 512 are both inclined, and the two corrugated plates are arranged in a vertically staggered manner, thereby forming multiple fluid inlets and outlets 513 at both ends of the module (the front end of the module is the inlet, and the rear end is the outlet) and multiple staggered flow channels are formed from front to back between adjacent corrugated plates, so that the fluid can be separated and mixed multiple times within the module. Figure 2 As shown, adjacent mixing modules 51 are placed with the corrugated plates perpendicular to each other, so that the fluid can be mixed cross-flow between the modules.
[0032] More specifically, in this embodiment, the inner diameter of the sleeve 4 is 15 mm, and there are 5 mixing modules 51. The number of corrugations of the first corrugated plate 511 and the second corrugated plate 512 of each mixing module 51 is greater than 3. Figure 4 As shown, a transverse flow channel a and a transverse flow channel b constitute a staggered flow channel. A single multiphase fluid enters from a fluid inlet and outlet 513 and sequentially passes through four staggered flow channels to achieve four separations.
[0033] The mixing structure 5 is provided with retaining rings 6 at both ends for securing it in position. The two retaining rings 6 are detachably connected to the inner wall of the cannula 4. The drug tube interface 3 is provided on the cannula 4 wall at the front end of the mixing structure 5 and is an integrated structure with the cannula 4. In this embodiment, four drug tube interfaces 3 are provided, each of which is connected to a drug delivery tube 2 equipped with a peristaltic pump 1. The cannula 4 and mixing structure 5 are both 3D-printed parts made of nylon, processed using 3D printing powder, which has good chemical stability and a short processing cycle. The standardized design saves costs and facilitates replacement.
[0034] The operation process of the SV type pipeline static mixer of this embodiment is as follows: the main fluid flows in from the front port of the sleeve 4, the fluid to be mixed is pumped in from the medicine tube interface 3 by the peristaltic pump 1, flows through the mixing structure, undergoes 20 separations and 4 cross flows, and finally passes through 2 24 Mix twice to achieve the best mixing effect.
[0035] This specific implementation method is merely an explanation of the utility model and not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by patent law as long as they are within the scope of the claims of the utility model.
Claims
1. An SV type pipeline static mixer based on 3D printing technology, characterized in that: include: Casing (4); A mixing structure (5) is arranged inside the sleeve (4) and includes a plurality of mixing modules (51) abutting against each other; each mixing module (51) is formed by alternately stacking a first corrugated plate (511) and a second corrugated plate (512); the corrugations of the first corrugated plate (511) and the second corrugated plate (512) are both inclined, and the two corrugated plates are arranged in a staggered manner, thereby forming a plurality of fluid inlets and outlets (513) at both ends of the module and forming a plurality of staggered flow channels from front to back between adjacent corrugated plates; adjacent mixing modules (51) are placed in a manner in which the corrugated plates are perpendicular to each other; The medicine tube interface (3) is arranged on the wall of the sleeve (4) at the front end of the mixing structure (5), and a plurality of medicine tube interfaces (3) are provided.
2. The SV type pipeline static mixer based on 3D printing technology according to claim 1, characterized in that: The number of corrugations of the first corrugated plate (511) and the second corrugated plate (512) in each mixing module (51) is ≥3.
3. The SV type pipeline static mixer based on 3D printing technology according to claim 1, characterized in that: The medicine tube interface (3) is connected to a medicine delivery tube (2) equipped with a peristaltic pump (1).
4. The SV type pipeline static mixer based on 3D printing technology according to claim 1, characterized in that: Both ends of the mixing structure (5) are respectively provided with retaining rings (6) for limiting and fixing the mixing structure.
5. The SV type pipeline static mixer based on 3D printing technology according to claim 4, characterized in that: At least one of the two retaining rings (6) is detachably connected to the inner wall of the sleeve (4).
6. The SV type pipeline static mixer based on 3D printing technology according to claim 1, characterized in that: The sleeve (4) and the hybrid structure (5) are 3D printed parts.
7. The SV type pipeline static mixer based on 3D printing technology according to claim 6, characterized in that: The material of the 3D printed part is nylon or plastic.
8. The SV type pipeline static mixer based on 3D printing technology according to claim 1, characterized in that: The inner diameter of the sleeve (4) is ≥15 mm.