Periodic oil-water emulsion bamboo tube spoiler of biomimetic sea urchin

Abstract

The application discloses a kind of bionic sea urchin periodic oil-water emulsion bamboo tube spoiler, including the annular rib of symmetrical arrangement in main pipe body inside, the center sphere of symmetrical arrangement in the central part of main pipe body between annular rib, the radial connecting column of symmetrical arrangement outside center sphere, and center sphere is fixed in the central part of main pipe body between annular rib by radial connecting column;The spoiler unit of the radial bionic sea urchin structure is arranged in each interval unit in the application, imitates the spiral radial arrangement characteristics of sea urchin body surface spines, forms the composite flow field with periodic vortex chain, spiral secondary flow and high-speed low-pressure area, under the action of Bernoulli effect and continuity equation principle, local flow rate in channel is increased, static pressure is reduced, oil drop is subjected to stronger fluid shear force and impact effect, significantly improves the breaking efficiency, gives consideration to mixing uniformity and flow field disturbance form, provides a kind of efficient, low energy consumption, structural innovative solution for oil-water emulsification process.

Description

Technical Field

[0001] This invention relates to the field of oil-water emulsification equipment technology, and in particular to a biomimetic sea urchin periodic oil-water emulsification bamboo tube baffle. Background Technology

[0002] Oil-water emulsification is an important process in the fields of petrochemicals, energy engineering, and environmental governance. Its core purpose is to disperse the oil phase into fine droplets through external force and form a stable mixed system with the water phase.

[0003] Existing static emulsification structures, whether spiral strips, ribs, or DNA-like double helices, overemphasize applying the structure near the wall, resulting in insufficient utilization of fluid kinetic energy. Low energy utilization not only leads to unstable emulsification effects but also easily causes energy waste and local dead zones. In addition, most structures drastically change the flow direction, causing oil droplets to be strongly sheared and broken up in a short time. However, due to the turbulent and uneven flow field, oil droplets are prone to re-aggregation, making it difficult to maintain a long-term stable emulsification state. Therefore, this invention proposes a biomimetic sea urchin periodic oil-water emulsification bamboo tube flow disruptor to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to propose a biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube flow disruptor. This biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube flow disruptor, by arranging radially arranged biomimetic sea urchin-inspired flow disruptor units within each interval unit, mimicking the spiral radial arrangement of the spines on the sea urchin's body surface, forms a composite flow field with periodic vortex chains, spiral secondary flow, and high-speed low-pressure zones. Under the action of the Bernoulli effect and the principle of continuity equation, the local flow velocity within the channel increases and the static pressure decreases, and the oil droplets are subjected to stronger fluid shear force and impact, significantly improving the breaking efficiency while balancing mixing uniformity and flow field disturbance form. Through the combined principle of biomimetic structural mixing + periodic flow disruption + Bernoulli, the fluid mixing characteristics are effectively improved, providing a highly efficient, low-energy-consumption, and structurally innovative solution for the oil-water emulsification process.

[0005] To achieve the objectives of this invention, the following technical solution is provided: a biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube disruptor, comprising a main body, annular ribs, a central sphere, and radial connecting columns. The main body is symmetrically provided with annular ribs inside, and a central sphere is symmetrically provided at the center of the main body between the annular ribs. Radial connecting columns are symmetrically provided on the outside of the central sphere. The biomimetic sea urchin structure formed by this design can improve emulsification efficiency. The central sphere is fixed to the center of the main body between the annular ribs by the radial connecting columns.

[0006] A further improvement is that the cross-section of the annular rib is either an equilateral triangle or an isosceles triangle, the side containing the base of the triangular cross-section of the annular rib is fixedly connected to the inner wall of the main tube, and the vertical distance from the top of the rib to the inner wall of the main tube is 1 / 4 of the outer diameter of the annular rib.

[0007] A further improvement is that the radial connecting column has a cuboid structure, with one end fixedly connected to the central sphere and the other end fixedly connected to the inner wall of the main tube and the side of the annular rib.

[0008] A further improvement is that: 12 sets of radial connecting columns are symmetrically arranged, of which 8 sets are connected to the side of the annular rib and 4 sets are connected to the inner wall of the main tube. The square side length of the radial connecting columns does not exceed half the height of the triangle of the annular rib cross section.

[0009] A further improvement is that the diameter of the central sphere is smaller than the inner diameter of the annular rib.

[0010] A further improvement is that the radial connecting columns on the adjacent central spheres inside the main body are distributed at a 45° angle relative to the axis of the main body, and are periodically distributed inside the main body.

[0011] The beneficial effects of the present invention are as follows: By periodically arranging biomimetic turbulence structures inside the main body, the present invention enables the fluid to form a continuous and stable vortex chain and composite secondary flow along the process, thereby achieving enhanced oil-water mixing and step-by-step shearing and breaking up throughout the process, effectively avoiding the problems of disturbance attenuation, uneven mixing and oil droplet re-coagulation in traditional static mixers.

[0012] The radial structure of this sea urchin structure can significantly improve the uniformity and stability of emulsification, while relying on naturally induced periodic turbulence and Bernoulli effect to achieve high energy utilization, reduce pressure drop and overall energy consumption;

[0013] The device has a simple structure, is easy to process, has no moving parts, and is highly reliable. It is suitable for crude oil emulsification and transportation and various engineering scenarios, achieving low energy consumption, high efficiency, and stable and reliable oil-water emulsification. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the present invention.

[0015] Figure 2 This is a partially enlarged cross-sectional view of the present invention.

[0016] Figure 3 This is a diagram of the biomimetic sea urchin structure formed by the central sphere and radial connecting pillars of this invention.

[0017] Figure 4 This is a cross-sectional view of the annular rib structure of the present invention.

[0018] Figure 5 This is a hybrid cloud map for the main view simulation of the present invention.

[0019] Figure 6 This is the main view simulation velocity cloud map of the present invention.

[0020] The components include: 1. Main tube; 2. Annular ribs; 3. Central sphere; 4. Radial connecting columns. Detailed Implementation

[0021] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0022] Oil-water emulsification is an important process in petrochemical, energy engineering and environmental governance. Its core purpose is to disperse the oil phase into fine droplets and form a stable mixed system with the water phase through external force. Static mixing emulsifiers have received widespread attention due to their simple structure, lack of moving parts and low energy consumption.

[0023] Existing static emulsification structures, whether spiral strips, ribs, or DNA-like double helix structures, overemphasize applying the structure near the wall, resulting in insufficient utilization of fluid kinetic energy. Low energy utilization not only leads to unstable emulsification effects but also easily causes energy waste and local dead zones. In addition, most structures drastically change the flow direction, causing oil droplets to be strongly sheared and broken up in a short time. However, due to the turbulent and uneven flow field, oil droplets are prone to re-coagulation, making it difficult to maintain a long-term stable emulsion state, which has become a technical challenge.

[0024] In nature, organisms such as sea urchins, starfish, and shells have spiral or radial protrusions on their surfaces, which can effectively induce vortices, reduce drag, and enhance mixing in fluids.

[0025] Based on the above, according to Figures 1-6 As shown, this embodiment provides a biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube turbulence device, including a main body 1, annular ribs 2, a central sphere 3, and radial connecting columns 4. The annular ribs 2 are symmetrically arranged inside the main body 1 to form a bamboo tube structure. The central sphere 3 is symmetrically arranged in the center of the main body 1 between the annular ribs 2, and the radial connecting columns 4 are symmetrically arranged on the outside of the central sphere 3. The biomimetic sea urchin structure formed by this device can improve emulsification efficiency. The central sphere 3 is fixed to the center of the main body 1 between the annular ribs 2 by the radial connecting columns 4. After the oil-water mixture and emulsion enter from the inlet, they pass through multiple periodic biomimetic sea urchin-inspired turbulence units in sequence. The vortex chains induced by each unit work together to break up and fully disperse the fluid layer by layer, thereby improving emulsification efficiency and stability.

[0026] A vertical feed pipe is installed at one end of the main body as the feed inlet, and the other end is the discharge outlet.

[0027] The cross-section of the annular rib 2 is either an equilateral triangle or an isosceles triangle. The side of the triangle with the base of the cross-section of the annular rib 2 is fixedly connected to the inner wall of the main body 1. The vertical distance from the top of the rib to the inner wall of the main body 1 is 1 / 4 of the outer diameter of the annular rib 2.

[0028] The radial connecting column 4 is a cuboid structure, with one end fixedly connected to the central sphere 3 and the other end fixedly connected to the inner wall of the main body 1 and the side of the annular rib 2.

[0029] There are 12 sets of radial connecting columns 4 symmetrically arranged, of which 8 sets are connected to the side of the annular rib 2 and 4 sets are connected to the inner wall of the main body 1. The square side length of the radial connecting column 4 does not exceed half the height of the triangle of the annular rib 2 cross section.

[0030] The diameter of the central sphere 3 is smaller than the inner diameter of the annular rib 2.

[0031] The radial connecting columns 4 on the adjacent central spheres 3 inside the main body 1 are distributed at a 45° angle relative to the axis of the main body 1, and are periodically distributed inside the main body 1.

[0032] This biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube flow disruptor works by introducing the oil-water mixture and emulsion through designated inlets. After passing through the annular ribs and the corresponding flow disruptor unit, which is a biomimetic sea urchin structure formed by a central sphere and radial connecting columns, the fluid undergoes multi-directional splitting, convergence, and rotation as it passes through. Simultaneously, as... Figure 2 As shown, the adjacent biomimetic sea urchin-like turbulence units are distributed at a 45° angle relative to the axis of the main body. This arrangement allows the oil-water mixture to periodically form local high-speed and low-pressure zones after flowing through each stage of the structure, and to form a spiral secondary flow between the annular ribs. When multiple turbulence units are connected in series, a periodic vortex chain structure is formed along the process, causing the oil droplets to gradually break up in the multi-stage turbulence and not easily re-aggregate, thereby achieving efficient emulsification.

[0033] The present invention sets up multiple channels inside the main body, which are separated by annular ribs with triangular cross sections, and arranges a sea urchin-like turbulence structure in each interval channel, consisting of a central sphere and several radial connecting columns. The turbulence units in adjacent intervals are arranged at a 45° angle relative to the pipe axis, thereby forming a continuous periodic vortex chain, spiral secondary flow and local high-speed low-pressure zone during the flow process, realizing multi-stage shearing, splitting and uniform dispersion of oil-water mixture.

[0034] Compared with traditional static emulsification structures, this invention can significantly improve emulsification uniformity and stability, avoid oil droplet re-coagulation, and improve energy utilization efficiency, reduce pressure drop and energy consumption under the synergistic effect of Bernoulli effect. The structure is simple, has no moving parts, and is highly reliable, making it suitable for engineering scenarios that require efficient oil-water emulsification, such as crude oil transportation, chemical mixing and energy systems.

[0035] This effect was verified using Fluent numerical simulations, and the results are as follows: Figure 5 and Figure 6 As shown, it can be observed that under the action of the static mixer structure of the present invention, the fluid mixing gradually becomes uniform and stable, thus improving the emulsification efficiency.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomimetic sea urchin-inspired periodic oil-water emulsification bamboo tube disruptor, characterized in that: It includes a main body (1), annular ribs (2), a central sphere (3) and radial connecting columns (4). The main body (1) is symmetrically provided with annular ribs (2) inside. The central sphere (3) is symmetrically provided at the center of the main body (1) between the annular ribs (2). The radial connecting columns (4) are symmetrically provided on the outside of the central sphere (3). The central sphere (3) is fixed to the center of the main body (1) between the annular ribs (2) by the radial connecting columns (4). The cross section of the annular rib (2) is an isosceles triangle. The side of the triangle with the base of the cross section of the annular rib (2) is fixedly connected to the inner wall of the main body (1). The vertical distance between the top and the inner wall of the main body (1) is 1 / 4 of the outer diameter of the annular rib (2). The radial connecting column (4) is a cuboid structure. One end is fixedly connected to the central sphere (3), and the other end is fixedly connected to the inner wall of the main body (1) or the side of the annular rib (2). There are 12 sets of radial connecting columns (4) symmetrically arranged, of which 8 sets are connected to the side of the annular rib (2) and 4 sets are connected to the inner wall of the main body (1). The square side length of the radial connecting column (4) does not exceed half the height of the triangle of the cross section of the annular rib (2). The diameter of the central sphere (3) is smaller than the inner diameter of the annular rib (2).

2. The biomimetic sea urchin periodic oil-water emulsification bamboo tube disruptor according to claim 1, characterized in that: The radial connecting columns (4) on the adjacent central spheres (3) inside the main body (1) are distributed at a 45° angle relative to the axis of the main body (1), and are periodically distributed inside the main body (1).

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