Spiral-flow type stirring impeller
By designing a swirling impeller and adopting an arc-shaped slotted blade structure, a strong swirling flow is generated, which solves the problems of uneven mixing and high energy consumption of high-viscosity materials, and achieves efficient mixing and energy-saving effects.
Patent Information
- Application Number
- CN202423111131.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing mixing impellers are unable to achieve an ideal mixing state for materials in a short time, especially for high-viscosity materials, which are difficult to flow and mix fully, and they also consume a lot of energy.
Design a swirling impeller with a hub and disc structure. The disc has evenly distributed slotted blades on its upper and lower surfaces. The blades have an arc structure and the grooves are set along the length of the blades to generate strong swirling flow to improve mixing efficiency.
It achieves full flow and mixing of high-viscosity materials, saves energy, and makes the mixing more uniform. It is suitable for mass transfer enhancement and temperature uniformity in multiphase systems, and reduces energy loss.
Smart Images
Figure CN223586956U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of stirring impellers, and the utility model specifically discloses a kind of cyclone type stirring impellers. BACKGROUND
[0002] At present, ordinary stirring impeller is difficult to produce strong cyclone, cannot make material reach ideal mixing state in shorter time, difficult to make high viscosity material fully flow and mix, and need to consume large amount of energy cost when operating. SUMMARY
[0003] The utility model aims at overcoming the deficiencies in prior art, provide a kind of cyclone type stirring impeller that can produce strong cyclone, can make material, especially high viscosity material, fully flow and mix and can effectively save energy.
[0004] According to the technical scheme provided by the utility model, the cyclone type stirring impeller, including hub, disc and strip slot blade, the hub and disc are coaxially fixed together, a plurality of strip slot blades are evenly distributed and are fixed on the upper surface and the lower surface of the disc, the outer end of the strip slot blade extends out of the disc, and all the strip slot blades are arranged in the same direction;The strip slot blade is arc-shaped structure in length direction, strip slot blade groove is arranged on the convex surface of the strip slot blade, the length direction of the strip slot blade groove is arranged along the length direction of the corresponding strip slot blade, and the inner end part and the outer end part of the strip slot blade groove penetrate the inner end part and the outer end part of the corresponding strip slot blade.
[0005] As preferred, equal number of strip slot blades are fixed on the upper surface and the lower surface of the disc, and the strip slot blades fixed on the upper surface and the lower surface of the disc are arranged symmetrically above and below.
[0006] As preferred, the cross section of the strip slot blade is semicircular ring shape, and the cross section of the strip slot blade groove is semicircular.
[0007] As preferred, the cross section of the strip slot blade is < symbol shape, and the cross section of the strip slot blade groove is triangular.
[0008] As preferred, the cross section of the strip slot blade is < symbol shape, and the cross section of the strip slot blade groove is rectangular.
[0009] As preferred, the cross section of the strip slot blade is semicircular ring shape, and the cross section of the strip slot blade groove is semicircular.
[0010] The mixing device can produce strong spiral flow after use, and is particularly suitable for mixing of high solid concentration and high viscosity materials. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is a front view of example 1.
[0012] Figure 2 is a top view of example 1.
[0013] Figure 3 is a perspective view of example 1.
[0014] Figure 4 is a front view of example 2.
[0015] Figure 5 is a top view of example 2.
[0016] Figure 6 is a perspective view of example 2.
[0017] Figure 7 is a front view of example 3.
[0018] Figure 8 is a top view of example 3.
[0019] Figure 9 is a perspective view of example 3.
[0020] Figure 10 is a front view of example 4.
[0021] Figure 11 is a top view of example 4.
[0022] Figure 12 is a perspective view of example 4. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] Example 1
[0025] A spiral flow type stirring impeller, such as Figures 1-3As shown, the device includes a hub 1, a disc 2, and slotted blades 3. The hub 1 and the disc 2 are coaxially fixed together. Several evenly distributed slotted blades 3 are fixed on both the upper and lower surfaces of the disc 2. The outer ends of the slotted blades 3 extend out of the disc 2, and all the slotted blades 3 are arranged in the same direction. The slotted blades 3 have an arc-shaped structure in the length direction. A slotted blade groove 3.1 is provided on the convex surface of the slotted blade 3. The length direction of the slotted blade groove 3.1 is arranged along the length direction of the corresponding slotted blade 3, and the inner and outer ends of the slotted blade groove 3.1 penetrate the inner and outer ends of the corresponding slotted blade 3.
[0026] An equal number of slotted blades 3 are fixed on both the upper and lower surfaces of the disk 2, and the slotted blades 3 fixed on the upper and lower surfaces of the disk 2 are arranged symmetrically.
[0027] The cross-section of the slotted blade 3 is a semi-circular ring, and the cross-section of the groove 3.1 of the slotted blade is a semi-circular shape.
[0028] Example 2
[0029] like Figures 4-6 As shown, this embodiment is basically the same as embodiment 1, except that the cross-section of the slotted blade 3 is < symbol shape, and the cross-section of the groove 3.1 of the slotted blade is triangular.
[0030] Example 3
[0031] like Figures 7-9 As shown, this embodiment is basically the same as embodiment 1, except that the cross-section of the slotted blade 3 is shaped like the symbol ], and the cross-section of the groove 3.1 of the slotted blade is rectangular.
[0032] Example 4
[0033] like Figures 10-12 As shown, this embodiment is basically the same as embodiment 1, except that the cross-section of the slotted blade 3 is a semi-elliptical ring, and the cross-section of the groove 3.1 of the slotted blade is a semi-elliptical shape.
[0034] The principle of this utility model is as follows:
[0035] When the spiral flow stirring impeller of the utility model rotates at high speed in the stirring container, the strip-shaped slotted blade 3 will exert force on the surrounding fluid. Due to the rotation of the spiral flow stirring impeller, the fluid is thrown to the wall surface of the container under the action of centrifugal force. In the stirrer, the fluid thrown to the wall surface will form a high-speed rotating circular flow. The fluid thrown to the wall surface of the container reflects at the wall surface. The reflected fluid interacts with the fluid subsequently thrown out by the impeller, and gradually forms a spiral flow. In the process of forming the spiral flow, the fluid in the container will also form an internal circulation. The fluid close to the central region of the impeller will be continuously supplemented by the external fluid due to the low pressure, and then be thrown out again by the impeller, thereby maintaining the continuous progress of the entire spiral flow and internal circulation.
[0036] The utility model has the following advantages:
[0037] 1、The main blade of the spiral flow stirring impeller adopts the strip-shaped slotted blade 3, the strip-shaped slotted blade 3 is arc-shaped structure in length direction, the convex surface (namely the water surface) of the strip-shaped slotted blade 3 is equipped with strip-shaped slotted blade groove 3.1, the strip-shaped slotted blade 3 can more effectively guide the fluid to form the spiral flow, because its shape can better adapt to the flow characteristics of the fluid. When stirring the material of high viscosity, the arc-shaped structure strip-shaped slotted blade 3 can produce stronger spiral flow, thereby improving the stirring efficiency and making the material mixing more uniform.
[0038] 2、The spiral flow stirring impeller can produce strong spiral flow, and this spiral flow forms a complex three-dimensional flow field in the container. When it is required to mix multiple raw materials of different densities and viscosities, the spiral flow can roll the material in each corner of the container into it, so that the material can be fully mixed in the horizontal, vertical and circumferential directions. Compared with some stirrers that can only produce a single direction flow field (such as only horizontal flow or axial flow), the mixing of the spiral flow stirrer is more comprehensive and uniform, and the material can reach the ideal mixing state in a short time.
[0039] 3、For high-viscosity materials, ordinary stirrers may be difficult to make the material flow and mix fully. The spiral flow stirring impeller of the utility model can overcome the internal friction of high-viscosity materials by virtue of its strong spiral flow generation capacity, and can roll and stir the material in the container. Its spiral flow can effectively divide the high-viscosity material into small flow groups, and then mix these flow groups together to ensure uniform mixing of high-viscosity materials.
[0040] 4、The cyclone type stirring impeller of the utility model can be used in multiphase system (such as gas-liquid, liquid-solid, etc.), and the cyclone type stirring impeller can also play a good role in mass transfer enhancement. In the aeration process of wastewater treatment, the cyclone generated by the cyclone type stirring impeller of the utility model can uniformly disperse air bubbles in wastewater, and prolong the residence time of the bubbles in water, thereby increasing the transfer efficiency of oxygen from the bubbles to the wastewater. In a liquid-solid system, such as the dissolution process of drug powder in solvent in the pharmaceutical industry, the cyclone generated by the cyclone type stirring impeller of the utility model can quickly roll the solid particles into the flow field, thereby accelerating the mass transfer between the solid particles and the solvent.
[0041] 5、The cyclone type stirring impeller of the utility model can quickly transfer heat to the entire material system by continuously circulating the material in the container. The cyclone can break the temperature stratification phenomenon, ensure that the material temperature in the container is uniform and consistent, and avoid local overheating or overcooling, which is very important for ensuring product quality and improving production efficiency.
[0042] 6、The cyclone mode of the cyclone type stirring impeller of the utility model can optimize the flow field in the container. Compared with some traditional stirrers, it can reduce unnecessary turbulence and eddy current, thereby reducing energy loss. In large-scale stirring reactions, the cyclone type stirring impeller can achieve good stirring effect with relatively low power input, and can save a large amount of energy cost in the long-term operation process.
[0043] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all should be covered in the scope of the claims of the utility model.
Claims
1. A kind of cyclone type stirring impeller, including hub (1), disc (2) and strip slot blade (3), in the hub (1) with disc (2) coaxially fixed together, in the upper surface and lower surface of the disc (2) are fixed with several strips of evenly distributed strip slot blade (3), the outer end of the strip slot blade (3) extends disc (2), all the strip slot blade (3) are set in the same direction;It is characterized by: The strip-shaped slotted blade (3) is arc-shaped in length direction, and a strip-shaped slotted blade groove (3.1) is arranged on the convex surface of the strip-shaped slotted blade (3), the length direction of the strip-shaped slotted blade groove (3.1) is arranged along the length direction of the strip-shaped slotted blade (3), and the inner end and the outer end of the strip-shaped slotted blade groove (3.1) penetrate the inner end and the outer end of the strip-shaped slotted blade (3).
2. The impeller according to claim 1, wherein the impeller is formed by cutting a circular plate having a diameter of 100 mm to 300 mm. The upper surface and the lower surface of the disc (2) are fixed with equal number of strip-shaped slotted blades (3), and the strip-shaped slotted blades (3) fixed on the upper surface and the lower surface of the disc (2) are arranged symmetrically.
3. A helical impeller according to claim 1 or 2, characterised in that: The cross section of the strip-shaped slotted blade (3) is semi-circular ring-shaped, and the cross section of the strip-shaped slotted blade groove (3.1) is semi-circular.
4. The impeller according to claim 1 or 2, wherein: The cross section of the strip-shaped slotted blade (3) is < symbol-shaped, and the cross section of the strip-shaped slotted blade groove (3.1) is triangular.
5. The impeller according to claim 1 or 2, wherein: The cross section of the strip-shaped slotted blade (3) is < symbol-shaped, and the cross section of the strip-shaped slotted blade groove (3.1) is rectangular.
6. The impeller according to claim 1 or 2, wherein: The cross section of the strip-shaped slotted blade (3) is < symbol-shaped, and the cross section of the strip-shaped slotted blade groove (3.1) is rectangular. The cross section of the strip-shaped slotted blade (3) is semi-elliptical ring-shaped, and the cross section of the strip-shaped slotted blade groove (3.1) is semi-elliptical.