A guide plate and a layout method of the guide plate

Abstract

The present invention discloses a guide plate and a guide plate layout method, wherein the guide plate comprises a body, a plurality of first bosses and a plurality of second bosses, a through hole is provided at the center of the body, a convex point is provided on the body, a plurality of first bosses are evenly distributed on the body in an annular shape with the center of the body as the center of the circle, and a plurality of first bosses are arranged at intervals along the radial direction of the body from the through hole to the edge of the body, a plurality of second bosses are arranged on the body adjacent to the outer contour of the body, a plurality of second bosses are evenly distributed in an annular shape with the center of the body as the center of the circle, and a plurality of second bosses are arranged at intervals along the radial direction of the body, each second boss is strip-shaped, and the extension direction of each second boss intersects with the radial direction of the body, the extension directions of two adjacent second bosses are parallel to each other, and parts of the plurality of first bosses are located between two adjacent second bosses. The guide plate of the embodiment of the present invention has the advantages of large shear force of the guide plate and balanced fluid performance.

Description

Technical Field

[0001] The present invention relates to the technical field of membrane components, and in particular to a guide plate and a layout method of the guide plate. Background Art

[0002] In recent years, membrane technology has developed rapidly and has been widely used in the fields of electricity, metallurgy, petroleum and petrochemicals, medicine, food, municipal engineering, sewage reuse and seawater desalination. The demand for membrane technology and its equipment in various projects has increased rapidly. At present, disc-tube reverse osmosis membrane assemblies have been widely used in the application field of zero discharge of leachate and concentrated brine. The main function of the guide plate in the disc-tube membrane assembly is to form a cavity between the two guide plates, providing an installation position for the membrane, thereby realizing the separation of concentrated liquid and clear liquid. The guide plate and the outer cylinder form a water inlet channel, and the guide plate and the fastening bolts form a clear liquid channel. A sealing groove is provided near the center hole of the guide plate, and an O-ring is installed inside to prevent the concentrated liquid and the clear liquid from mixing.

[0003] The guide discs used in traditional disc-tube membrane modules are mostly convex guide discs, which are provided with many turbulent convex points. The turbulent convex points can enhance the guiding function of the guide disc and also support the diaphragm. The turbulent convex points are small convex points, which are easy to damage the diaphragm when the equipment is under high operating pressure (or when the pressure fluctuates violently), and when there are more turbulent convex points, the kinetic energy loss is large, and when there are fewer turbulent convex points, they cannot support the diaphragm. Summary of the invention

[0004] To this end, an embodiment of the present invention provides a guide plate with large shear force and balanced fluid performance.

[0005] An embodiment of the present invention further provides a layout method of a guide plate.

[0006] A guide plate according to an embodiment of the present invention includes:

[0007] A body, wherein a through hole is provided at the center of the body, and a convex point is provided on the body;

[0008] A plurality of first bosses, wherein the plurality of first bosses are evenly distributed on the body in a circular shape with the center of the body as the center, and the plurality of first bosses are spaced from the through hole to the edge of the body along the radial direction of the body; and

[0009] A plurality of second bosses, wherein the plurality of second bosses are arranged on the main body adjacent to the outer contour of the main body, the plurality of second bosses are evenly distributed in a ring shape with the center of the main body as the center, and the plurality of second bosses are arranged at intervals along the radial direction of the main body;

[0010] Each of the second bosses is strip-shaped, and the extension direction of each of the second bosses intersects with the radial direction of the body. The extension directions of two adjacent second bosses are parallel to each other, and parts of the plurality of first bosses are located between two adjacent second bosses.

[0011] The guide plate according to the embodiment of the present invention has the advantages of large shear force and balanced fluid performance.

[0012] In some embodiments, each second boss includes a first end and a second end, the first end of the second boss is adjacent to the center of the body, and an angle between an extension direction of the second boss and a radial direction of the body through the first end of the second boss is between 1° and 45°.

[0013] In some embodiments, the length of the second boss is 1 mm-10 mm.

[0014] In some embodiments, the first boss is in a contraction-shaped structure from a side adjacent to the body to a side away from the body, a transition section is provided between the side adjacent to the body and the body, and the top of the first boss is a hemispherical surface.

[0015] In some embodiments, the second protrusion is in the shape of a cuboid, a cube, a trapezoidal platform or a quadrangular pyramid.

[0016] The layout method of the guide plate according to any of the above embodiments of the present invention comprises the following steps:

[0017] Making a three-dimensional model of the body of the guide plate;

[0018] Arrange a plurality of first bosses on the body in an annular manner with the center of the body as the center of the circle, so as to form a first layer of first annular bosses;

[0019] A flow numerical simulation is performed on the fluid sheared by the first annular boss, and a second first annular boss spaced from the first annular boss is arranged on the body along the radial direction of the body according to the flow velocity of the fluid sheared by the first annular boss;

[0020] Each first boss in the second layer of first annular bosses is arranged at a position where the flow velocity of the fluid sheared by the first layer of annular bosses is low;

[0021] Perform multiple flow numerical simulations on the fluid, and arrange multiple layers of first annular bosses from the second layer of first annular bosses to the edge of the body at intervals along the radial direction of the body according to the simulation results;

[0022] Performing a flow numerical simulation on the fluid sheared by the multiple layers of the first annular bosses, and arranging multiple layers of the second annular bosses at intervals along the radial direction of the body according to the simulation results;

[0023] Each layer of the second annular bosses includes a plurality of second bosses, each of which is strip-shaped, and the plurality of second bosses are arranged in a ring around the center of the body, and two adjacent second bosses are parallel to each other in their extension direction.

[0024] The layout method of the guide plate according to the embodiment of the present invention has the advantages of large shear force of the guide plate and balanced fluid performance.

[0025] In some embodiments, providing the second layer of the first annular boss comprises the following steps:

[0026] A CFD flow velocity distribution test is performed on the fluid after being sheared by the first layer of the first annular boss. According to the results of the CFD flow velocity distribution test, each first boss in the second layer of the first annular boss is arranged in a ring shape at a position where the flow velocity is low after being sheared by the first layer of the first annular boss and is away from the influence of the wake flow.

[0027] In some embodiments, providing the multi-layer second annular boss further comprises the following steps:

[0028] Each of the second annular bosses is arranged at a position where the flow velocity of the fluid is low after being sheared by the multiple layers of first-layer annular bosses.

[0029] In some embodiments, providing the multi-layer second annular boss further comprises the following steps:

[0030] A CFD velocity distribution test is performed on the fluid after shearing by the multi-layer first annular bosses. According to the result of the CFD velocity distribution test, each second boss in the first layer of second annular bosses is arranged in a ring shape at a position where the velocity is low after shearing by the multi-layer first annular bosses and is away from the influence of the wake flow;

[0031] The flow numerical simulation of the fluid is performed multiple times, and according to the simulation results, multiple layers of second annular bosses are arranged at intervals along the radial direction of the body from the first layer of the second annular boss toward the edge direction of the body.

[0032] In some embodiments, an extension direction of the second boss intersects with a radial direction of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a guide plate according to an embodiment of the present invention.

[0034] Figure 2 It is a schematic diagram of the diaphragm shear force of the guide plate with only the first boss position optimized.

[0035] Figure 3 Schematic diagram of the diaphragm shear force of the guide plate according to an embodiment of the present invention.

[0036] Figure 4is a bar graph of the average turbulent kinetic energy of different guide plates.

[0037] Figure 5 It is a bar graph of the average diaphragm shear force of different guide plates.

[0038] Figure 6 It is a schematic diagram of dividing the traditional guide plate into three monitoring circles.

[0039] Figure 7 yes Figure 6 Schematic diagram of the diaphragm shear force of each monitoring circle of the central guide plate.

[0040] Figure 8 It is a schematic diagram of dividing the guide plate that only optimizes the position of the first boss into three monitoring circles.

[0041] Fig. 9 yes Figure 8 Schematic diagram of the diaphragm shear force of each monitoring circle of the central guide plate.

[0042] Fig.10 It is a schematic diagram of dividing the guide plate in this application into three monitoring circles.

[0043] Fig.11 yes Fig.10 Schematic diagram of the diaphragm shear force of each monitoring circle of the central guide plate.

[0044] Fig.12 This is a schematic diagram of the water inlet direction in a traditional guide plate.

[0045] Fig.13 It is a schematic diagram of the water inlet direction in the guide plate with only the first boss position optimized.

[0046] Fig.14 It is a schematic diagram of the water inlet direction of the guide plate in this application.

[0047] Fig.15 It is a schematic diagram of the shear force structure of the diaphragm along the water inlet direction in each guide plate.

[0048] Reference numerals:

[0049] Guide plate 100,

[0050] Main body 1, through hole 11, first boss 2, second boss 3. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0052] like Figure 1As shown, the guide plate according to the embodiment of the present invention includes a body, a plurality of first bosses and a plurality of second bosses.

[0053] A through hole is provided at the center of the body, and a convex point is provided on the body. A plurality of first convex platforms are evenly distributed on the body in an annular shape with the center of the body as the center, and the plurality of first convex platforms are spaced from the through hole to the edge of the body along the radial direction of the body.

[0054] A plurality of second bosses are arranged on the main body adjacent to the outer contour of the main body, the plurality of second bosses are evenly distributed in a ring shape with the center of the main body as the center, and the plurality of second bosses are arranged at intervals along the radial direction of the main body.

[0055] Each second boss is strip-shaped, the extension direction of each second boss intersects with the radial direction of the body, the extension directions of two adjacent second bosses are parallel to each other, and parts of the plurality of first bosses are located between two adjacent second bosses.

[0056] like Figure 1 As shown, the fluid enters the guide plate through the through holes on the main body and flows from the center of the main body to the edge of the main body. During the flow of the fluid, it is continuously sheared by multiple first bosses. It can be understood that in the process of the fluid being sheared, the potential energy in the fluid is continuously decreasing. Therefore, after being sheared by multiple layers of annular first bosses, the shear force of the first boss on the fluid will continue to decrease, resulting in the first boss adjacent to the edge of the main body being almost unable to shear the fluid. At this time, the fluid is divided by the strip-shaped second bosses, and a fluid channel is formed by two adjacent second bosses, which can further shear the fluid, thereby enhancing the overall balance of the guide plate.

[0057] Therefore, the guide plate according to the embodiment of the present invention has the advantages of large shear force and balanced fluid performance.

[0058] In some embodiments, each second boss includes a first end (eg, Figure 1 The end adjacent to the center of the body as shown) and the second end (as shown Figure 1 The first end of the second boss is adjacent to the center of the body, and the angle between the extension direction of the second boss and the radial direction of the body through the first end of the second boss is between 1° and 45°.

[0059] According to the guide plate of the embodiment of the present invention, the angle between one of the diameters of the body and the end of the first end of the second boss is 1°-45°. It can be understood that the extension direction of the second boss intersects with the radial direction of the body, which can cause the fluid sheared by the second boss to generate a lateral force. When the angle is less than 0°, the cutting force of the second boss is the same as that of the first boss. When the angle is greater than 45°, it is easy to partially block the fluid, resulting in a further reduction in the potential energy in the subsequent fluid. When the angle is between 1°-45°, the second boss can not only generate a lateral force on the fluid, but also cause the fluid to be divided by the adjacent second boss.

[0060] Preferably, the included angle between the extension direction of the second boss and the radial direction of the body passing through the first end of the second boss is 30°.

[0061] In some embodiments, the length of the second boss is 1 mm-10 mm.

[0062] According to the guide plate of the embodiment of the present invention, when the length of the second boss is less than 1 mm, the cutting force of the second boss is the same as that of the first boss. When the length of the second boss is greater than 10 mm, the resource consumption is large, which is not conducive to the subsequent segmentation of the fluid. Specifically, when the length of the second boss is too large, the flow channel distance formed between two adjacent second bosses is too long, which is not conducive to fluid shearing and may even cause a decrease in the internal potential energy of the fluid.

[0063] Preferably, the length of the second boss is 5 mm. When the length of the second boss is 5 mm, after the fluid flows out of the flow channel formed by two adjacent second bosses, it can diffuse again and enter the annular boss composed of the next layer of second bosses for re-cutting.

[0064] In some embodiments, the first boss is in a contraction-shaped structure from a side adjacent to the body to a side away from the body, a transition section is provided between the side adjacent to the body and the body, and the top of the first boss is a hemispherical surface.

[0065] According to the guide plate of the embodiment of the present invention, the contact area between the side of the first boss adjacent to the main body (lower side) and the main body is large, which can enhance the connection strength between the first boss and the main body; the side of the first boss away from the main body (upper side) is small in volume (or has a small contact area with the fluid), which can facilitate the passage of the fluid and reduce the consumption of potential energy in the fluid.

[0066] In some embodiments, the second protrusion is in the shape of a cuboid, a cube, a trapezoidal platform or a quadrangular pyramid.

[0067] The layout method of the guide plate according to any of the above embodiments of the present invention comprises the following steps:

[0068] Step 1, making a three-dimensional model of the body of the guide plate;

[0069] Step 2, arranging a plurality of first bosses in a ring shape on the main body with the center of the main body as the center of the circle, so as to form a first layer of first annular bosses;

[0070] Step 3, performing a flow numerical simulation on the fluid sheared by the first annular boss, and arranging a second first annular boss spaced from the first annular boss along the radial direction of the body according to the flow velocity of the fluid sheared by the first annular boss;

[0071] Wherein, each first boss in the second layer of first annular bosses is arranged at a position where the fluid flow velocity is low after being sheared by the first layer of annular bosses;

[0072] Step 4, repeat the steps in step 3, perform multiple flow numerical simulations on the fluid, and arrange multiple layers of first annular bosses from the second layer of first annular bosses to the edge of the body at intervals along the radial direction of the body according to the simulation results;

[0073] Step 5, performing a flow numerical simulation on the fluid after being sheared by the multiple layers of the first annular bosses, and arranging multiple layers of the second annular bosses at intervals along the radial direction of the main body according to the simulation results;

[0074] Each layer of the second annular bosses includes a plurality of second bosses, each of which is strip-shaped, and the plurality of second bosses are arranged in a ring around the center of the body, and two adjacent second bosses are parallel to each other in their extension direction.

[0075] According to the layout method of the guide plate in an embodiment of the present invention, a flow numerical analysis is performed on the fluid after being sheared by each layer of the first annular boss, and based on the result of the flow numerical analysis, the position of the first boss in each layer of the first annular boss except the first layer of the first annular boss is determined, so that each layer of the first annular boss except the first layer of the first annular boss can fully shear the fluid, thereby enhancing the shear force of the guide plate on the fluid.

[0076] After the fluid is sheared by the multiple layers of first annular bosses, the shear force of the first annular boss away from the center of the guide plate on the fluid begins to decrease. At this time, a second annular boss composed of a plurality of strip-shaped second bosses is arranged at the position where the shear force begins to decrease. Since the second bosses are strip-shaped, a fluid channel is formed between two adjacent bosses, which can guide the fluid and further enhance the shear force of the guide plate on the fluid.

[0077] Therefore, the layout method of the guide plate according to the embodiment of the present invention has the advantages of large shear force of the guide plate and balanced fluid performance.

[0078] In some embodiments, providing the second layer of the first annular boss comprises the following steps:

[0079] Step 3.1, perform a CFD (Computational Fluid Dynamics) flow velocity distribution test on the fluid after being sheared by the first layer of the first annular boss. According to the result of the CFD flow velocity distribution test, each first boss in the second layer of the first annular boss is arranged in a ring shape at a position where the flow velocity is low after being sheared by the first layer of the first annular boss and is away from the influence of the wake flow.

[0080] According to the layout method of the guide plate in an embodiment of the present invention, a CFD flow velocity distribution test is performed on the fluid on the guide plate to determine the flow velocity of the fluid after being sheared by each layer of the first annular bosses, and each first boss in the next layer of the first annular bosses is arranged in a low flow velocity area avoiding the influence of the wake flow, so that the low flow velocity fluid is sheared again by the first annular bosses in the next layer, thereby enhancing the overall shear force of the guide.

[0081] It can be understood that after the fluid on the guide plate passes through the CFD flow velocity distribution test, the flow velocity of the fluid after shearing by each layer of the first annular boss can be directly obtained, and then each first boss in the next layer of the first annular boss can be accurately set in the part with low flow velocity and avoiding the wake flow.

[0082] In some embodiments, providing the multi-layer second annular boss further comprises the following steps:

[0083] Step 5.1, each of the second annular bosses is disposed at a position where the fluid flow rate is low after being sheared by the multiple layers of first-layer annular bosses.

[0084] According to the layout method of the guide plate in an embodiment of the present invention, the second boss in each layer of the second annular boss is set at a position where the fluid flow rate is lower after being sheared by the previous layer of the first annular boss and / or the second layer of the annular boss, which can further enhance the overall shear force of the guide plate.

[0085] In some embodiments, providing the multi-layer second annular boss further comprises the following steps:

[0086] Step 5.1.1, performing a CFD velocity distribution test on the fluid after shearing by the multi-layer first annular bosses, and according to the result of the CFD velocity distribution test, each second boss in the first layer of second annular bosses is arranged in a ring shape at a position where the velocity is low after shearing by the multi-layer first annular bosses and is away from the influence of the wake flow;

[0087] Step 5.1.2, perform multiple flow numerical simulations on the fluid, and arrange multiple layers of second annular bosses from the first layer of second annular bosses to the edge of the body at intervals along the radial direction of the body according to the simulation results.

[0088] It can be understood that after the fluid on the guide plate passes through the CFD flow velocity distribution test, the flow velocity of the fluid after shearing through each layer of the first annular boss and / or each layer of the second annular boss can be directly obtained, and then each second boss in the next layer of the second annular boss can be accurately set in a part with low flow velocity and avoiding the wake flow.

[0089] In some embodiments, the extension direction of the second boss intersects the radial direction of the guide plate. Figure 1 The end adjacent to the center of the body as shown) and the second end (as shown Figure 1 The first end of the second boss is adjacent to the center of the body, and the angle between the extension direction of the second boss and the radial direction of the body through the first end of the second boss is between 1° and 45°.

[0090] According to the guide plate of the embodiment of the present invention, the angle between one of the diameters of the body and the end of the first end of the second boss is 1°-45°. It can be understood that the extension direction of the second boss intersects with the radial direction of the body, which can cause the fluid sheared by the second boss to generate a lateral force. When the angle is less than 0°, the cutting force of the second boss is the same as that of the first boss. When the angle is greater than 45°, it is easy to partially block the fluid, resulting in a further reduction in the potential energy in the subsequent fluid. When the angle is between 1°-45°, the second boss can not only generate a lateral force on the fluid, but also cause the fluid to be divided by the adjacent second boss.

[0091] Preferably, the included angle between the extension direction of the second boss and the radial direction of the body passing through the first end of the second boss is 30°.

[0092] In some embodiments, the height of the second boss is lower than the height of the edge of the guide plate.

[0093] In some embodiments, the second protrusion is in the shape of a cuboid, a cube, a trapezoidal platform or a quadrangular pyramid.

[0094] The following is a comparison of a conventional guide plate, a guide plate with only the first boss position optimized, and a guide plate with the first boss and the second boss positions optimized for specific description:

[0095] (It should be noted that the initial guide plate in the figure is equivalent to the traditional guide plate in this application, the guide plate after the optimized arrangement is equivalent to the guide plate in which only the position of the first boss is optimized in this application, and the guide plate with a rectangular parallelepiped is equivalent to the guide plate in this application)

[0096] Through CFD flow velocity distribution test, it can be seen that in the traditional guide plate, the cut fluid is unevenly distributed.

[0097] The flow rate of the fluid in the guide plate with only the first boss position optimized is as follows: Figure 2 As shown in FIG. 1 , compared with the conventional guide plate, the guide plate with the first boss position optimized has improved overall turbulent kinetic energy and diaphragm shear force performance, but the flow velocity of the fluid near the edge of the guide plate begins to decrease. Figure 2 As shown in Figure 2, starting from the 6th cycle, the shear force of the diaphragm decreases significantly (e.g. Figure 2 middle black area).

[0098] like Figure 1 and Figure 3 As shown in FIG. 1 , in the area where the flow velocity of the guide plate of the first boss is reduced, a strip-shaped second boss is provided, and the flow velocity of the guide plate is as follows: Figure 2 As shown, it can be seen that the flow rate of the fluid is significantly increased after being cut by the multiple layers of the first annular bosses and then by the multiple layers of the second annular bosses.

[0099] See also Figure 4 The average turbulent kinetic energy of the guide plate using the embodiment of the present application is 0.0016 kg^-1, which is 0.00015 kg^-1 higher than that of the traditional guide plate, and 0.00005 kg^-1 higher than that of the guide plate that only optimizes the position of the first boss.

[0100] See also Figure 5 The average membrane surface shear force of the guide plate using the embodiment of the present application is 0.5PA, which is nearly 4 times higher than that of the traditional guide plate, and is also nearly 0.1PA higher than that of the guide plate that only optimizes the position of the first boss.

[0101] like Figure 6-Figure 11 As shown in the figure, the three guide plates are divided into three monitoring circles (the first annular boss of the third layer, the first annular boss of the sixth layer, and the first annular boss of the ninth layer), and the performance differences of the three guide plates are compared and analyzed. Figure 6 and Figure 7 As shown in Figure 1, the diaphragm shear force of each monitoring circle in the initial guide plate shows an obvious decreasing trend, that is, the closer to the outer contour area, the weaker the diaphragm shear force. Figure 8 and Fig. 9 As shown, the diaphragm shear force of each monitoring circle in the guide plate that only optimizes the position of the first boss is significantly improved compared with the traditional guide plate, but the decreasing trend still exists.

[0102] like Fig.10 and Fig.11 Compared with the guide plate which only optimizes the position of the first boss, the diaphragm shear force of each monitoring circle in the guide plate of the present application is more evenly and ideally distributed.

[0103] like Figure 12-Figure 15As shown, among the three guide plates, along the water inlet direction, the diaphragm shear force of the guide plate according to the embodiment of the present invention is also in a higher level range compared with the traditional guide plate and the guide plate with optimized arrangement.

[0104] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0105] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0106] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0107] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0108] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0109] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A guide plate, characterized in that: include: A body, wherein a through hole is provided at the center of the body, and a convex point is provided on the body; A plurality of first bosses, the plurality of first bosses are evenly distributed on the body in an annular shape with the center of the body as the center, and the plurality of first bosses are spaced from the through hole to the edge of the body along the radial direction of the body, the plurality of first bosses are annularly arranged on the body with the center of the body as the center, and multiple layers of first annular bosses are formed along the radial direction of the body; and A plurality of second bosses, wherein the plurality of second bosses are arranged on the main body adjacent to the outer contour of the main body, the plurality of second bosses are evenly distributed in an annular shape with the center of the main body as the center, and the plurality of second bosses are arranged at intervals along the radial direction of the main body, and the second bosses are arranged at a position where the fluid flow rate is low after being sheared by the multi-layer first annular bosses, so as to form a multi-layer second annular boss; Each of the second bosses is strip-shaped, and the extension direction of each of the second bosses intersects with the radial direction of the body. The extension directions of two adjacent second bosses are parallel to each other, and parts of the plurality of first bosses are located between two adjacent second bosses.

2. The guide plate according to claim 1, characterized in that: Each of the second bosses includes a first end and a second end. The first end of the second boss is adjacent to the center of the body. The angle between the extension direction of the second boss and the radial direction of the body through the first end of the second boss is between 1° and 45°.

3. The guide plate according to claim 1, characterized in that: The length of the second boss is 1 mm-10 mm.

4. The guide plate according to claim 1, characterized in that: The first boss is in a contraction-shaped structure from a side adjacent to the body to a side away from the body, a transition section is provided between the side adjacent to the body and the body, and the top of the first boss is a hemispherical surface.

5. The guide plate according to claim 1, characterized in that: The second protrusion is in a shape of a cuboid, a cube, a trapezoidal platform or a quadrangular platform.

6. A layout method of a guide plate according to any one of claims 1 to 5, characterized in that: The following steps are involved: Making a three-dimensional model of the body of the guide plate; Arrange a plurality of first bosses on the body in an annular manner with the center of the body as the center of the circle, so as to form a first layer of first annular bosses; A flow numerical simulation is performed on the fluid sheared by the first annular boss, and a second first annular boss spaced from the first annular boss is arranged on the body along the radial direction of the body according to the flow velocity of the fluid sheared by the first annular boss; Each first boss in the second layer of first annular bosses is arranged at a position where the flow velocity of the fluid sheared by the first layer of annular bosses is low; Perform multiple flow numerical simulations on the fluid, and arrange multiple layers of first annular bosses from the second layer of first annular bosses to the edge of the body at intervals along the radial direction of the body according to the simulation results; Performing a flow numerical simulation on the fluid sheared by the multiple layers of the first annular bosses, and arranging multiple layers of the second annular bosses at intervals along the radial direction of the body according to the simulation results; Each layer of the second annular bosses includes a plurality of second bosses, each of which is strip-shaped, and the plurality of second bosses are arranged in a ring around the center of the body, and two adjacent second bosses are parallel to each other in their extension direction.

7. The layout method of the guide plate according to claim 6, characterized in that: Providing the second layer of the first annular boss comprises the following steps: A CFD flow velocity distribution test is performed on the fluid after being sheared by the first layer of the first annular boss. According to the results of the CFD flow velocity distribution test, each first boss in the second layer of the first annular boss is arranged in a ring shape at a position where the flow velocity is low after being sheared by the first layer of the first annular boss and is away from the influence of the wake flow.

8. The layout method of the guide plate according to claim 6, characterized in that: Providing the multi-layer second annular boss also includes the following steps: Each of the second annular bosses is arranged at a position where the flow velocity of the fluid is low after being sheared by the multiple layers of first-layer annular bosses.

9. The layout method of the guide plate according to claim 8, characterized in that: Providing the multi-layer second annular boss also includes the following steps: A CFD velocity distribution test is performed on the fluid after shearing by the multi-layer first annular bosses. According to the result of the CFD velocity distribution test, each second boss in the first layer of second annular bosses is arranged in a ring shape at a position where the velocity is low after shearing by the multi-layer first annular bosses and is away from the influence of the wake flow; The flow numerical simulation of the fluid is performed multiple times, and according to the simulation results, multiple layers of second annular bosses are arranged at intervals along the radial direction of the body from the first layer of the second annular boss toward the edge direction of the body.

10. The layout method of the guide plate according to any one of claims 6 to 9, characterized in that: The extension direction of the second boss intersects with the radial direction of the guide plate.

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