Device for generating forced eddy current

Abstract

According to the device for generating the forced vortex, the convex curved blades are adopted to deflect fluid, and the principle is based on the Keanda effect: when the fluid flows along the convex curved surface, even if the convex curved surface deviates from the original direction or the outflow axis of the convex curved surface, the fluid still flows close to the convex curved surface; and the flow rate along the convex curved surface is higher than the flow rate along other surface forms (especially when the fluid flows towards a space full of the fluid). The outer blade convex curved surface which is convex inwards is adopted to induce or pull fluid to flow close to the convex curved surface of the outer blade ridge, the fluid enters the convex curved surface of the inner blade ridge through the blade gap, and the convex curved surface extends towards the inner wall of the vortex chamber in a convex manner. After the inner blade is obliquely installed on the tail edge of the outer blade, a gap is formed between the tail edge of the outer blade and the front edge of the inner blade, the ridge line of the inner blade is tangent to the outflow axis of the blade gap, the tail edge of the inner blade is slightly bent backwards from the circumference of the inner wall of the vortex chamber, and based on the Keanda effect, fluid is guided to be tightly attached to the convex curved surface of the inner blade to flow. The blades are symmetrically arranged into the annular structure according to the mode, fluid from each blade flows in a relay mode, the fluid is forced to tightly flow along the convex curved surfaces of the blades, and the blades form the inner wall of the vortex chamber, so that a forced vortex is formed in the vortex chamber. As fluid flows on the convex curved surface, laminar vortex can be formed during high-speed rotation. The convex curved surface has the characteristics of low pressure, low fluid pressure and low pressure resistance, so that the fluid energy loss (embodied in the form of fluid pressure) is low. Therefore, the fluid is introduced into the system by adopting the convex and curved blades, so that when the fluid flows along the surfaces of the convex and curved blades, an ideal high rotating speed can be realized without establishing extremely high pressure difference. The kinetic energy of the fluid is the highest when the fluid flows in the blade gaps, and then is gradually reduced when the fluid rotates towards the vortex center. Therefore, when fluid flows close to the inner wall of the vortex chamber, the rotating speed reaches the maximum value; along with the attenuation of the fluid energy, the rotating speed is gradually reduced when the fluid spirals towards the center of the vortex. A device for generating a forced vortex is mounted inside the external structure.

Description

Technical Field

[0001] The present invention relates to an apparatus for generating forced eddies. Background Technology

[0002] Most traditional devices for generating vortices produce free vortices, meaning the outer vortices rotate at low speeds, gradually increasing in speed towards the center. However, some applications rely on forced vortices for effective operation, but devices for generating forced vortices are currently limited. In forced vortices, the rotational speed is highest in the outermost region and gradually decreases towards the center due to a gradual reduction in energy. Applications relying on forced vortices include: using the centrifugal force of vortices for fluid separation, and transferring heat or cold from pipe walls through vortex flow within the pipe.

[0003] There are two main types of devices used to generate forced vortices: the first type uses a centrifugal impeller to cause fluid to flow along the inner wall of a concave, curved circular vortex chamber (e.g., a circular pipe, cylindrical cavity, or conical cavity), thereby forming a vortex within the pipe, cylindrical cavity, or conical cavity, as exemplified by the invention according to patent number JP1995155698; the second type uses stator blades as guide vanes, with their trailing edges twisted to guide fluid to flow along the concave, curved circular inner wall (e.g., a pipe, cylindrical, or conical cavity), thereby forming a vortex within the container. In these forced vortex generation methods, fluid is typically introduced through an axial inlet, as exemplified by the invention according to US patent number US20190168147A1, which, in addition to the guide vanes, also installs paired vortex vanes to form counter-rotating vortices, conveying small particles to the pipe or cavity wall for sedimentation. Both of the aforementioned vortex generation methods follow the same principle: utilizing the curved structure of the container's inner wall to force fluid to flow along the concave, curved circular inner wall, thereby forming a vortex within the container. The concave curvature of the container's inner wall hinders the fluid from flowing in a straight line, thus generating flow pressure and pressure drag, resulting in weakened internal propulsion and reduced flow velocity. If the rotational speed of the vortex increases to a certain level, turbulence will be generated, which will have an adverse effect when using the vortex to generate centrifugal force for separation. Since centrifugal force is proportional to the rotational speed of the vortex, the higher the rotational speed, the greater the centrifugal force generated, and the more significant the separation effect. However, as mentioned above, there are limitations to accelerating the rotational speed when using the concave curve of the container's inner wall to form a vortex. Therefore, this invention aims to design a method and manufacture a device for generating a forced vortex with high rotational speed, internal laminar vortex formation, and low pressure loss rate. Summary of the Invention

[0004] This invention relates to a device for generating forced vortices, aiming to provide a method and apparatus for generating forced vortices with high rotational speed, internal laminar vortex formation, and low pressure loss. The device deflects the flow direction using a convex curved surface, causing the fluid to flow at high speed along the surface according to the Coanda effect, thereby forming vortices with low pressure loss characteristics. The device utilizes the convex surface to change the fluid direction, causing the fluid to flow at high speed along the curved surface according to the Coanda effect—that is, the fluid tends to flow along the convex surface even when it deviates from its original flow direction.

[0005] In this invention, the device for generating forced vortices employs convex curved blades, deflecting the fluid based on the Coanda effect principle: even if the convex surface deviates from the original flow direction, the fluid will still flow along the convex surface, and the fluid flowing along the convex surface will rotate at a higher speed. The outer blades employ convex curved surfaces to achieve the Coanda effect, causing the fluid to be deflected and flow along the convex curved ridges of the outer blades, passing through the blade gaps, and flowing close to the convex curved ridges of the inner blades—these convex curved ridges bend towards the inner wall of the vortex chamber—and flowing along the surface of the convex curved ridges of the inner blades (i.e., the inner wall of the vortex chamber). That is, the fluid flows on the inner wall surface, thereby forming forced vortices within the vortex chamber. The device for generating forced vortices described in this invention consists of blades, each blade having a convex curved ridge extending from the leading edge to the trailing edge of the blade. The underside of the blade, opposite the convex curved ridge, is concave, straight, or slightly convex, with a curvature less than that of the convex curved ridge of the blade. The blades are arranged in a symmetrical ring on a circular base, consisting of a two-layer structure: the leading edge and convex ridge of the outer blades diagonally slope outwards towards the fluid distribution chamber, while the trailing edge slopes inwards diagonally. The inner blades are arranged adjacent to the trailing edge of the leading blade, with their undersides facing outwards. The convex leading edge of the inner blades faces the convex trailing edge of the outer blades, with a gap between them. The design and arrangement of the inner and outer blades ensure a specific width of gap between the trailing edge of the outer blade and the leading edge of the inner blade. The tangent of the trailing edge of the outer blade is at or near the outflow axis of the gap between the trailing edge of the outer blade and the leading edge of the inner blade, and this axis is tangent to the convex ridge of the inner blade. The trailing edge of the inner blade curves slightly inwards from the circumferential edge of the inner wall. The sequentially arranged double-layer blade groups are symmetrically arranged in a ring structure and mounted on the circular base. The inner blades in the preceding blade group connect with the outer blades of the target blade group. The outer blades in subsequent blade groups connect with the inner blades of the target blade group. The annularly arranged upper blades are covered at their tips by annular caps, allowing fluid to flow into the internal cavity only through the blade gaps. The annularly arranged blade assembly is installed inside an external structure with a fluid inlet for fluid to enter a fluid distribution chamber. This distribution chamber surrounds a drive base on which blades are mounted, forming a forced vortex device. The fluid inlet is positioned to guide and impinge the convex curved side of the blade leading edge. Due to the Coanda effect, the fluid is deflected and flows close to the convex curved surface of the blade. These blade convex curved surfaces belong to the suction side, which, as part of the fluid distribution chamber, induces or draws fluid towards the blade trailing edge and impinges on the leading edge of the inner blade through the specifically configured blade gaps. The Coanda effect also deflects the fluid and allows it to flow close to the surface of the convex curved ridge of the inner blade. The trailing edge of the inner blade bends inward, and its arc curves slightly inward beyond the inner wall circumference. At the same time, when the fluid flows through the blade gap of the subsequent blade group, it generates a pulling force, thereby guiding the fluid to flow close to the convex ridge surface of the inner blade of the subsequent blade group.According to the blade arrangement, the fluid flowing along each set of blades interacts and flows in a relay, thereby generating flow on the inner wall of the vortex chamber (i.e., the convex ridge of the inner blades), forming vortices within the vortex chamber. As previously mentioned, based on the Coanda effect, the fluid is guided to flow tightly along the convex ridge of the inner blades, thus forming a laminar flow field along the inner wall of the vortex chamber. The force is greatest at the blade gap outlet. Therefore, the rotational speed is highest at the outer edge of the vortex and gradually decreases towards the center – this phenomenon caused by the weakening of the force is called forced vortex. Due to the low pressure on the convex surface, the low pressure generated by the flow, and the low flow resistance, the flow velocity is higher than that on concave surfaces, planes, or fluid-filled spaces. Therefore, the device for generating vortices according to the invention can achieve vortices with high rotational speed, low energy loss, and low pressure loss. The vortex chamber can extend axially towards the opening end of the internal cavity of the transmission base to increase the vortex space and residence time, wherein the end of the vortex chamber forms an outlet for the rotating fluid to be used in other process flows.

[0006] The convex-curve blade-type vortex-generating device of this invention can be installed inside a housing with a volute structure, wherein a fluid inlet introduces fluid into a fluid distribution cavity that encloses the drive base of the vortex-generating device. This cavity is widest at its inlet and gradually narrows to a partition separating the inlet from the end of the fluid distribution cavity, designed to evenly distribute the fluid across all blade gaps on the drive base, guiding the fluid into an internal cavity—the vortex chamber. This vortex chamber can extend axially upwards a specific distance from the blade tip, its end defined as a vortex outlet for the target process.

[0007] When fluid is forced into the fluid distribution chamber, it is distributed into the gaps between the blades. Due to the convex curvature of the blade leading edge and the blade ridge, when the fluid impacts the blade leading edge, it is deflected by the Coanda effect, flowing tightly along the curved surface of the convex ridge. Because the convex blade surface blocks pressure from the convex blade sidewalls, it has the lowest pressure compared to other parts in that region. In fluid mechanics, the blade ridge side is called the suction side. Due to the convex curvature of the surface, vortex flow does not generate pressure, so the flow velocity on the convex surface is several times that on a flat or concave surface. Because the fluid distribution chamber employs a volute structure, its concave wall opposite the annular blade defines the pressure side. Accordingly, the suction side generates suction, and the pressure side generates pressure, causing the fluid to flow at high speed along the convex surface of the blade ridge and impact the blade leading edge through the blade gap. The operation described below is consistent with the previous description in the blade section, where vortices are generated on the convex curved side of the blade.

[0008] The convex-bladed device for generating vortices described in this invention can also be installed near the fluid outlet of an impeller compressor, in which fluid flows out from its diffuser, and the diffuser base plate has a certain inclination. The diffuser blades are mounted on the diffuser base plate, each blade having a slender, pointed structure and concentric curved ridges. The surface of these ridges is convexly curved from the leading edge to the trailing edge. The leading edge of the diffuser blades is arranged close to the impeller edge, and the diffuser blades are arranged at a large angle on a radius line perpendicular to the tangent of the diffuser base plate's circumference, curving towards the direction of impeller blade rotation. The trailing edge of the diffuser blades is slightly curved inward relative to the circumference of the diffuser base plate. The diffuser blades are vertically mounted on the diffuser blade plate inclined at a certain angle, such that the trailing edge of the diffuser blades located at the circumferential edge of the diffuser base plate extends beyond the circumferential edge line of the base plate due to the inclination angle. In fluid mechanics, the convex side of the diffuser blades is called the suction side, while the concave side, with a certain thickness to reduce the curvature of the concave surface, is called the pressure side. Multiple diffuser blades are symmetrically arranged around the diffuser base, allowing the flow stream formed by the preceding diffuser blade to flow along the convex surface of the subsequent diffuser blades (in the flow direction), thus relaying the flow from one diffuser blade to another. Due to the slight inward curvature of the diffuser blade trailing edges from the circumferential edge of the blade plate, coupled with the Coanda effect, the fluid is deflected to flow close to the convex ridges of the diffuser blades, forming vortices at the circumferential edge of the diffuser base. The tilt angle of the diffuser base and the ridge tilt angle formed by the diffuser blade trailing edges protruding beyond the circumferential edge of the diffuser base create a mixed flow consisting of radial and axial flows. This mixed flow causes tangential swirling flow around the circular core region enclosed by the fluid distribution chamber. The tangential velocity at the central edge of the circle is higher than the velocity on the concave curved surface, and also higher than the velocity in a space filled with high-pressure fluid and experiencing high-pressure resistance. The diffuser base edge extends downwards to form a downward axial edge, and a device for generating forced vortices, consisting of convex curved blades, is installed adjacent to this edge. When fluid flows close to the central annular wall and reaches the device for generating vortices described in this invention, the convex curved surface of the blade leading edge, the blade ridge (which acts as the suction side), and the concave curved wall of the fluid distribution chamber (which acts as the pressure side) interact with each other. As the high-speed fluid flows from the impeller compressor along the central annular wall, it impacts the leading edge of the blade that generates the vortex. This creates a bidirectional force between the suction side formed by the convex curved blade ridge and the pressure side formed by the fluid distribution chamber wall, causing the fluid to flow at high speed through the blades and the blade gaps. The blade structure designed according to the above configuration will form a forced vortex with laminar vortices, high speed, and low pressure loss. The specific principle has been detailed in the section on the working principle of the convex curved blades of the device for generating vortices.

[0009] The apparatus for generating forced vortices according to the invention may further include an extension structure of the vortex chamber. The invention also provides an extension chamber of the vortex chamber, which, by installing a flow accelerator, can generate vortices with higher rotational speeds and lower flow turbulence than those generated by conventional circular, cylindrical, or conical tubular vortex chambers. Because the circular tube wall has a concave curved surface, the swirling flow generated in a circular, cylindrical, or conical pipe creates flow pressure, which in turn generates flow resistance. The inventors have addressed this problem by forming a convex curved surface on the inner wall of the extension chamber (which is cylindrical or conical). However, because the inner wall of a cylindrical or conical vortex chamber has an annular structure, a convex curved surface cannot be formed without forming a concave curved surface, which would generate high fluid pressure and pressure resistance. The invention solves the flow pressure and pressure resistance problems caused by concave curved surfaces by installing double convex curved surface blades on the concave curved surface of the inner wall of the vortex chamber. The inner wall of the vortex chamber is alternately and symmetrically formed with convex and concave corrugations. The blade maintains a certain distance from the concave corrugated surface, forming a flow channel beneath the blade. Fluid flows from the convex surface of the preceding convex corrugation to the convex surface of the following convex corrugation. The leading edge of the blade is positioned to receive fluid flowing over the convex curved surface of the preceding convex corrugated plate. The arrangement of the trailing edge of the blade ensures that its curved surface is tangent to or close to the outlet axis of the flow channel beneath the blade, which in turn is tangent to the convex curved surface of the subsequent convex corrugation. Due to the Coanda effect, as fluid flows along the convex curved surface and impacts the leading edge of the blade, some fluid flows along the convex curved surface beneath the blade; this area acts as the suction side. Since the wall opposite the convex curved surface is the concave curved surface of the concave corrugation, which acts as the pressure side, most of the fluid flowing through the flow channel beneath the blade is pulled and pushed, causing it to flow tightly against the convex curved ridge beneath the blade. Because the blade trailing edge is arranged to be tangential to or close to the outflow axis of the channel below the blade, and tangential to the convex surface of the subsequent convex corrugations, the fluid flowing through the channel below the blade is deflected by the Coanda effect, flowing tangentially along the convex surface below the blade, and then tangentially along the convex surface of the subsequent convex corrugations. Another portion of the fluid, after impacting the leading edge of the blade, flows along the convex surface above the blade. Due to the tension acting on the fluid flowing along the convex surface below the blade, this fluid flows close to the convex surface of the subsequent convex corrugations, thus inducing the fluid flowing along the convex surface above the blade to flow tangentially towards the convex surface of the subsequent convex corrugations. Therefore, the vortex in the tube is a flow pattern in which fluid flows from the convex surface of the convex corrugations to the convex surface of the blade (including below and above the blade), and then alternately flows tangentially towards the convex surface of the subsequent convex corrugations—this flow pattern persists throughout the entire vortex formation process in the vortex chamber, with most of it being swirling flow on the convex surfaces. Convex surfaces have lower pressure, fluid pressure, and pressure resistance compared to concave surfaces, and fluid flowing through convex surfaces experiences lower pressure loss. Therefore, the vortex velocity is higher than that in cylindrical or conical vortex chambers with circular inner walls (i.e., concave surfaces).Furthermore, the flow on the convex surface (as the suction side) generates laminar flow, which then forms laminar vortices within the cylindrical or conical cavity.

[0010] The convex-blade type device for generating forced vortices according to the present invention can generate forced vortices with laminar vortex characteristics without generating turbulence. Due to the low pressure and low pressure resistance of the flow on the convex surface, the pressure loss of the fluid is low. Because the Coanda effect generates high-speed flow on the convex blade surface, the required high-speed vortex can be formed without extremely high pressure differential potential energy. Furthermore, the Coanda effect generated when the fluid flows on the convex surface induces or guides the fluid to flow along the convex surface. The resulting vortex flow is a laminar vortex flow, suitable for fluid separation. The convex-blade type device for generating vortices according to the present invention solves the technical problems of existing vortex generating devices, is inventive, and has good industrial applicability. Attached Figure Description

[0011] Figure 1A This is a perspective view of a device for generating forced vortices, in which double-layered blades are arranged in a cylindrical shape and the vortex chamber has a cylindrical expansion chamber.

[0012] Figure 1B is a plan view of the double-layered blades arranged in a ring.

[0013] Figure 1C It is a three-dimensional view of the double-layer blades (non-square or rectangular structure) and their flow profile.

[0014] Figure 2A This is a perspective view of a device for generating forced vortices, in which double-layered blades are arranged in a conical shape and the vortex chamber has a conical expansion chamber.

[0015] Figure 2B It is a plan view of the double-layered blades arranged in a ring.

[0016] Figure 2C This is a perspective view of a trapezoidal double-layered blade.

[0017] Figure 3A This is a perspective view of a device for generating forced vortices using blades with elliptical cross-sections, wherein the blades are cylindrical and arranged perpendicular to the base, and have cylindrical expansion chambers for the vortex chambers.

[0018] Figure 3B is a plan view of the elliptical cross-section blades arranged in a ring.

[0019] Figure 3C This is a perspective view of a blade with a rectangular elliptical cross section and a flow field distribution diagram of the blade with an elliptical cross section.

[0020] Figure 4A A plan view of the vortex shell device used to generate forced vortices, showing its detailed structure.

[0021] Figure 4B This is a perspective view of a vortex housing device used to generate forced vortices.

[0022] Figure 4C The internal structure of the vortex shell device used to generate forced vortices is shown, along with the arrangement of the double-layer blades used to form the vortices.

[0023] Figure 5A A perspective view of an impeller compressor-type device for generating forced vortices.

[0024] Figure 5B An exploded view of the components of an impeller compressor-type device for generating forced vortices.

[0025] Figure 5C This is a plan view of the impeller and diffuser system of an impeller compressor-type device used to generate forced vortices.

[0026] Figure 5D This is a cross-sectional view of an impeller compressor-type device used to generate forced vortices.

[0027] Figure 5E The details of vortex flow in an impeller compressor-type device for generating forced vortices are shown.

[0028] Figure 6A This is a plan view of the vortex chamber expansion chamber, in which a velocity accelerator is installed. The accelerator has a structure with alternating convex and concave corrugations, and double convex side blades are installed above the concave corrugations.

[0029] Figure 6B A plan view of a flow velocity accelerator, characterized in that: a concave corrugation is formed immediately after a convex corrugation, and a double convex side blade is installed above the concave corrugation.

[0030] Figure 6C and 6D It is a perspective view of a conical vortex chamber in which a flow accelerator is installed. The accelerator has a structure with alternating convex and concave corrugations, and double convex side blades are mounted above the concave corrugations. Detailed Implementation

[0031] Figure 1AFigures 1B and 1C show the device for generating forced eddies according to the present invention. The device needs to be installed inside an external structure. Its structure includes a fluid inlet and a fluid distribution chamber (which encloses the transmission base 4 of the eddy current generating device). Double-layer blades are installed on the base plate (6). The outer blades (9) are all non-square rectangular structures. The blade ridge (11) is convex arc from the leading edge (10) to the trailing edge (12) of the blade. The lower side (13) of the blade is concave curve or straight. The inner blade (14) is also non-square rectangular, and its ridge (16) is convex curve from the leading edge (15) to the trailing edge (17) of the blade. The lower inner edge (18) of the blade is concave curve or plane (preferably plane). The blades have curvature and specific thickness, so that the concave curvature of the lower edge of the blade can be reduced. The outer and inner blades are configured and arranged such that the convex curved blade ridge (11) of the outer blade (9) extends diagonally toward the outside of the fluid distribution chamber, while the blade trailing edge (12) is diagonally inclined inward. The inner blade (14) is arranged diagonally adjacent to the trailing edge of the outer blade, with a gap (19) between them; the convex curved leading edge (15) of the inner blade (14) faces the convex curved side of the trailing edge (12) of the outer blade, so that the leading edge of the blade can receive the fluid flowing along the trailing edge (12) of the outer blade. The trailing edge (17) of the inner blade is curved backward, and the curved surface is slightly lower than the inner wall periphery (8) of the inner cavity (5) of the transmission base. The trailing edge of the outer blade (9) is tangent or nearly tangent to the outflow axis (a) of the gap between the trailing edge (12) of the outer blade and the leading edge (15) of the inner blade - that is, tangent to the convex curved surface of the inner blade ridge (16). The blades are symmetrically arranged on the base plate (6) in the above configuration, in a circular and cylindrical structure, so that the inner blade (14) in the previous group of blades abuts against the outer blade (9') of the target blade group, while the outer blade of the subsequent blade group abuts against the inner blade (14') of the target blade group. The cylindrical internal cavity serves as a vortex chamber (5), with the ends of the annularly arranged blades covered by an annular cover plate (23), allowing the fluid to flow only along the blades and through the blade gaps; the extended chamber wall (24) of the vortex chamber extends axially from the blade end cover plate to a specific distance, and the downstream opening of the vortex chamber defines the fluid outlet (27), which is used to transport the generated forced vortex to the subsequent process.

[0032] The device for generating forced vortices described in this invention is installed in an external structure. When fluid is forced into the fluid distribution chamber through the fluid inlet, the distribution chamber is composed of convex blades that surround the drive base of the device (4) for generating forced vortices as the suction side. The fluid flows along streamline f and impacts the leading edge (10) of the outer blade. Due to the Coanda effect, the fluid is deflected to flow along the convex surface of the outer blade ridge (11) and along streamline b, which guides the fluid to the drive base of the device for generating vortices, forming a laminar flow. When the fluid flows toward the blade trailing edge (12) and impacts the inner blade leading edge (15) through the gap (19) between the outer blade trailing edge (12) and the inner blade leading edge (15), due to the Coanda effect, the fluid is deflected to flow along streamline c of the inner blade ridge (16). Because the trailing edge (17) of the inner blade bends backward from the circumference (8) of the inner wall of the vortex chamber, and because of the suction effect of the flow passing through the gap between the trailing edge (12') of the outer blade and the leading edge (15') of the blade in the subsequent blade group, the fluid is drawn to flow along the convex ridges (16') of the blade in the subsequent blade group (14') - these ridges form part of the inner wall of the vortex chamber and extend along the streamline c' direction. Since the blades are symmetrically arranged on the transmission base of the device used to generate the vortex, the fluid generates streamline d as shown in the figure along the inner wall of the vortex chamber while flowing alternately with each set of blades, thus forming a vortex in the vortex chamber. Because the convex blade surface blocks the pressure of the fluid flowing through its side, the pressure in the convex curvature region is lower than the pressure in other parts of the region; while other parts have higher pressure because they are filled with fluid. In addition, the pressure resistance of the fluid flow in the convex curvature region is less than the flow resistance of other surface configurations (such as concave curvature regions), so high-speed flow can be achieved without a high potential energy pressure difference. Due to the lower pressure resistance, the flow pressure loss is also lower. The flow velocity reaches its highest value on the convex curved surface of the blade ridge. As the vortex flow approaches the center of the vortex, its energy gradually weakens, and the flow velocity decreases accordingly. The device for generating vortices described in this invention can produce forced vortices that have laminar vortex characteristics and high rotational speed.

[0033] Figure 2A , 2B Figures 2C and 2C illustrate another embodiment of the device for generating forced vortices according to the present invention, wherein the blades for generating the vortex are all trapezoidal, and the vortex chamber is formed into a conical structure. Its working principle is the same as the device described above, which generates forced vortices by equipping non-square rectangular blades and a cylindrical vortex chamber. The only difference is that, as shown in Figure 2C... Figure 2C As shown, both the outer blade (109) and the inner blade (114) are trapezoidal, their shape gradually narrowing from the blade root to the blade tip at the connecting base. When the blades are arranged in the above configuration on the circular base plate (106) to form an annular transmission base, conical structures are formed on both the inner and outer sides of the device cross-section area equipped with non-square rectangular blades for generating eddies. Figure 2A As shown, the internal cavity (105) defining the vortex chamber also includes an extension chamber (125) of the vortex chamber. The extension chamber wall (124) of the vortex chamber extends from the end cap (123) of the annular blade. The inclination angle of the inner wall (126) of the extension chamber is the same as the inclination angle of the blade that constitutes the inner wall of the vortex chamber (105), and it is connected to the inner wall of the vortex chamber as a continuous plane. The downstream open end of the vortex chamber defines the fluid outlet (127) for conveying the forced vortex flow to subsequent processes.

[0034] The working principle of this device for generating forced vortices is the same as that of a device for generating vortices equipped with non-square rectangular blades and a cylindrical vortex chamber (5), characterized in that each blade is trapezoidal and the vortex chamber is conical (5). The difference lies in the trapezoidal blades and the conical vortex chamber. Both the outer trapezoidal blade (109) and the inner trapezoidal blade (114) gradually narrow from the blade root at the connecting base to the blade tip. Therefore, the flow channel extends outward from the blade leading edge, facing the fluid distribution chamber, flowing through the ridge (111) and the blade trailing edge (112) of the outer blade (109), through the gap between the blades (119), and through the ridge (116) of the inner blade (114) to the blade trailing edge (117). On the transmission base, the flow channel from the blade leading edge to the blade trailing edge gradually shortens from the blade root to the blade tip. When the blades are assembled in the configuration described in the trapezoidal blade section, a flow channel is formed as follows: Figure 2A The conical structure shown. A conical extension chamber (125) of the conical vortex chamber (105) can be installed on the conical vortex chamber (105). Since the circumference of the conical chamber gradually shortens from the upstream side to the downstream side, and the flow channel distance gradually shortens from the blade root to the blade tip, the rotational speed continuously increases from the upstream side to the downstream side, thereby obtaining a forced vortex with high rotational speed and forming laminar vortices.

[0035] Figure 3AFigures 3B and 3C show a device for generating a forced vortex rotation flow. This device is equipped with a double-convex curved blade (209) with an elliptical cross-section, an improvement on the aforementioned vortex generating device. This vortex generating device has two sets of interlocking blades: the inner blade of the first set interlocks with the outer blade of the target blade group, or the outer blade of the subsequent set interlocks with the inner blade of the target blade group. When adjacent blades merge into one blade, such that the curved ridge profiles of the two blades converge into one and maintain their shape, the blade has an elliptical cross-section, with its leading edge more rounded than its trailing edge (including the surface of the trailing edge (212) of its outer blade and the surface of the trailing edge (215) of its inner blade), and its shape is designed according to a predetermined shape and arranged in a ring on a base plate (206). The device for generating forced vortices includes elliptical blades (209) mounted within an external structure, which includes a fluid inlet for introducing fluid into a fluid distribution chamber surrounding a transmission base (204) for generating forced vortices. Elliptical blades (209) are mounted on a base plate (206) and arranged in a ring on the base plate. The internal cavity (205) surrounding the blades is cylindrical, forming a vortex chamber (205). The outer (211) and inner (214) sides of the elliptical blades (209) are both convex surfaces, with the leading edge of the blade (including the outer (210) and inner (213)) having a greater curvature than the trailing edge of the blade (including the outer trailing edge (212) and inner trailing edge (215)). The elliptical blades (209) are non-rectangular in shape, and their structure and thickness remain unchanged from the blade root to the blade tip. The shape and size of the blades are carefully designed and arranged on the annular area of ​​the base plate (206). The blades are arranged diagonally on the annular base plate, with the surface of the leading edge (210) of the outer blade and the ridge (211) of the outer blade inclined towards the fluid distribution chamber, the trailing edge (212) of the outer blade inclined inward, and the trailing edge (215) of the inner blade slightly curved backward, extending beyond the circumference of the inner wall (208) of the vortex chamber. Subsequent elliptical blades are arranged in a similar manner. The design and arrangement of the blades leave a certain gap (216) between the blades, and the trailing edge (212) of the outer blade is tangent to or close to the outflow axis (a) of the gap between the blades, which is in turn tangent to the convex curved surface (214') of the inner ridge of the subsequent blade group (209'). The elliptical blades are arranged symmetrically in an annular shape on the base plate (206). The extension cavity wall (224) of the vortex chamber can extend upward from the annular cover plate (223) to a certain height, thereby forming the extension cavity (225) of the vortex chamber. At the open end downstream of the vortex chamber, there is a fluid outlet (227) for discharging the generated forced vortex for use in subsequent processes.

[0036] As the fluid in the distribution chamber flows along streamline f toward the leading edge (210) of the outer blade, it is deflected by the Coanda effect and flows close to the convex surface (211) of the outer blade surface, as shown by streamline b. When the fluid reaches the trailing edge (212) of the outer blade, it flows toward and impacts the leading edge (213') of the inner blade of the subsequent blade group because the trailing edge of the outer blade is tangent to or close to the outflow axis (a) of the blade gap (216), which is tangent to the inner convex surface (214') of the next set of blades (209'). Due to the Coanda effect, the fluid is deflected and flows along streamline c closely along the convex surface of the inner blade ridge (214') of the subsequent blade group (209'). Due to the rearward curvature of the inner blade trailing edge (215') from the circumference of the vortex chamber wall (208) and the suction force of the fluid flowing through the subsequent gap between the blades, the fluid is drawn towards the inner ridge convex surface (214') of the subsequent blade assembly (209') and flows along the surface. The fluid in the distribution chamber flows along streamline f' and impacts the leading edge (210') of the subsequent blade. Due to the Coanda effect, the fluid is deflected and flows along streamline b' close to the outer ridge convex surface (211'). Because the position of the trailing edge (212') of the outer blade of the subsequent blade group (209') is tangent to or close to the outflow axis of the subsequent blade gap (216'), and this axis is tangent to the convex surface of the inner ridge (214') of the subsequent blade group (209'), the fluid will flow through the trailing edge (212') of the outer blade and the blade gap, impacting the leading edge (213') of the inner blade. Due to the Coanda effect, the fluid is deflected and flows along the streamline c', which is the suction surface, closely adhering to the convex surface (214') of the inner blade surface of the subsequent blade group (209'). Therefore, the fluid flowing towards the trailing edge (215') of the inner blade of the subsequent blade group (209') will be pulled along the convex surface (214') of the inner blade surface of the subsequent blade group (209') because the trailing edge of the blade bends backward from the circumference of the inner wall of the vortex chamber and is close to the gap (216') between the blades. The fluid flows together on the curved surface (214'). (The arrangement of the inner blade trailing edges curving backward from the circumference of the vortex chamber wall is important for guiding the fluid to flow closely along the ridge of the inner blade surface; conversely, if the blade trailing edges do not curve backward, the fluid will gradually rotate towards the center of the vortex.) Therefore, the fluid is drawn towards the convex curved surface (part of the vortex chamber wall) on the inner ridge of the blade and flows closely along the streamline d along this convex curved surface. Due to the symmetrical arrangement of the elliptical blades, the fluid on the convex curved surface inside each blade flows in relay along the vortex chamber wall formed by the convex curved surface on the inner ridge of each blade, thereby generating swirling flow in the vortex chamber. Due to the blade arrangement, the fluid is drawn towards the inner wall of the vortex chamber, thus forming a forced swirling flow. Due to the Coanda effect, the generated swirling flow is a laminar swirling flow. Because the swirling pressure on the convex curved surface is low and the pressure drag is small, its rotational speed is high.According to the present invention, fluid flows out of the vortex generating device through a fluid outlet (227) located at the downstream opening end of the vortex chamber.

[0037] The elliptical blade device for generating forced vortices is equipped with elliptical blades (209) for generating swirling flow. These blades can be designed in a trapezoidal structure, with each side gradually tapering from the blade root connected to the base to the blade tip. When the aforementioned elliptical blades are arranged symmetrically on a base plate in a non-rectangular manner, a conical cavity defining a vortex chamber is formed. A conical extension cavity can be installed within this cavity, the inclination angle of which is the same as the inclination angle of the blade portion of the vortex chamber, and the inner wall of the extension cavity is in the same plane as the vortex chamber. The forced vortex device for generating swirling flow is equipped with trapezoidal and elliptical blades, and its operating principle is the same as that of the trapezoidal double-layer blade vortex generator with a conical vortex chamber (104) described in detail in this section.

[0038] Figure 4A , 4B As shown in Figure 4C, a volute compressor-type forced vortex generator (1) consists of a fan and a motor, used to force fluid from a tangential fluid inlet (2) into a volute-type fluid distribution chamber (3), which surrounds the vortex generating device (4). The fluid distribution chamber is widest near the inlet and gradually narrows, narrowing at the tail end near the inlet, thus distributing the fluid evenly across all gaps (16) between the blades. A baffle (20) is installed in the area where the inlet narrows to the end of the fluid distribution chamber. The fluid distribution chamber wall (7) is continuously concave and narrows to the baffle. The inlet-side baffle (21) has a convex surface. Non-square rectangular double-blade devices and cylindrical vortex chambers (5); trapezoidal double-blade devices and conical vortex chambers (104); non-square rectangular elliptical blade devices and cylindrical vortex chambers (204); or trapezoidal elliptical blade devices and conical vortex chambers are all mounted on a base plate (6). The fluid outlet is formed at the open end downstream of the vortex chamber.

[0039] When fluid is forced into the fluid distribution chamber (3) through the fluid inlet (2), the concave surface of the fluid distribution chamber acts as a pressure surface in fluid dynamics, and the baffle at the inlet and each outward-facing blade ridge (11) with a convex surface act as a suction surface. The fluid is subjected to pressure and pulled towards the leading edge (10) of the blade, impacting it. Due to the Coanda effect, the fluid is deflected and flows along the convex surface (11) of the outer blade ridge towards the trailing edge (12) of the blade. Due to the arrangement of the outer blades, the outflow axis of the gap between the trailing edge of the outer blade and the leading edge (15) of the inner blade is tangent to the ridge (16) of the inner blade. The fluid flows towards the leading edge (15) of the inner blade and impacts it. Due to the Coanda effect, the fluid is deflected and flows close to the convex surface of the inner blade ridge (16). The arrangement of the inner blade trailing edge (17) causes it to curve slightly backward, extending beyond the circumference (8) of the inner wall of the vortex chamber. Combined with the suction effect of the fluid flowing through the gaps between subsequent blade groups, the fluid is drawn towards the convex surface close to the ridge of the subsequent blade group and flows along this surface. Since the blades are symmetrically arranged on the transmission base of the vortex generating device, the fluid flow on the convex surface of each blade ridge is mutually transmitted. The vortex generated in the vortex chamber is continuously transmitted to the extension cavity (25) of the vortex chamber and then discharged from the vortex chamber through the fluid outlet (27). Other examples of vortex generating devices have also been mentioned above, including trapezoidal double-blade devices, conical vortex chambers, and non-square rectangular or elliptical blade devices. The working principles of trapezoidal, elliptical blade devices and conical vortex chambers are similar to those of trapezoidal double-blade devices and conical vortex chambers.

[0040] Figure 5A , 5B Figures 5C and 5D show an impeller compressor type forced vortex generator (300), which consists of the following parts: an axial fluid inlet (301), an impeller with a rotor (303), a diffuser (307), a fluid distribution chamber (315), and a device for generating forced vortices (the device includes: according to Figure 2A , 2B The trapezoidal double-layer blade type vortex generating blade (109, 114) shown in 2C, or trapezoidal double convex curved surface blade with elliptical cross section, vortex chamber (105), vortex chamber extension cavity (125) and fluid outlet (127).

[0041] The impeller compressor of the forced vortex generator consists of an axial fluid inlet (301) and a motor that transmits rotational power to the impeller (304) via a shaft (302). The radius of the impeller (304) is shorter on the upstream side and longer on the downstream side, resulting in a higher fluid propulsion rate at the impeller blade tip (305) than the amount of fluid drawn in by the upstream impeller. Consequently, the amount of fluid drawn in cannot fully compensate for the outflow, creating a vacuum on the upstream side. Therefore, the impeller compressor has a very high intake efficiency. Because the rotor and impeller rotate simultaneously, continuously pushing the fluid, the impeller compressor operates effectively at extremely high speeds, generating high kinetic energy. This kinetic energy is then converted into pressure through a diffuser, thereby reducing the rotational speed and converting the kinetic energy into pressure potential energy. Since the vortex generator of the present invention requires suction, pressure, rotational speed and tangential flow around the central edge, wherein suction is used to draw fluid into the system, and suction is also high when the outlet flow velocity is high, the kinetic energy and pressure potential energy of the high-speed fluid will accelerate the flow velocity, and the tangential flow around the central edge causes the fluid to flow along the blades to generate high rotational speed, thereby generating high centrifugal force, in order to achieve the above objectives, the impeller base (306), impeller (304), impeller blade tip (305), diffuser base (308) and diffuser blade (309) are designed with a certain degree of inclination, so that the flow from the outlet of the impeller / diffuser system is a mixed flow of radial and axial flow. To generate radial flow, the diffuser blades are designed to be inclined at a steep angle in the plane, forming a relatively large angle with the radius line perpendicular to the circumferential tangent of the diffuser base plate, and the inclination direction is the same as the impeller rotation direction. This allows most of the fluid pushed away from the impeller blades to flow along the convex curved surface (312) on the ridge side of the diffuser blades, which is caused by various factors, such as the inclination of the impeller blades and the impeller rotation speed. The trailing edge (311) of the diffuser blades is slightly curved backward, extending beyond the circumferential edge of the diffuser base plate (308). The concave surface of each diffuser blade (313) has a certain thickness, allowing the fluid flowing out of the concave surface to flow to the ridge side edge portion (312) of the subsequent diffuser blades, thereby generating a large tangential component. To avoid high fluid pressure but low velocity flowing out of the impeller / diffuser system, the number of diffuser blades is preferably small, i.e., the solidity value of the diffuser blades is preferably relatively low. The diffuser blades are arranged vertically on the inclined diffuser base plate. Because the diffuser base plate (308) is vertically arranged, the upper part of the diffuser blades (320) (adjacent to the circumference of the diffuser base plate) extends beyond the diffuser base plate (308) to a certain extent. The inclination angle of the tapered edge (316) extending from the diffuser base plate is the same as or similar to the inclination angle of the diffuser blades extending from the circumference of the diffuser base plate. The tapered edge (316) has a certain length, which can serve as a short surface for the fluid to rotate before flowing into the blade gap of the vortex device. If the impeller motor is connected to the blades mounted below the diffuser base plate (308), the tapered rim (316) is relatively long.When the motor and blades are installed separately so that they are not in the flow channel through which the motor transmits rotational power via the shaft (302), the conical rim (316) is shorter. In addition, the device for generating forced eddies is mounted axially on the conical rim (316), with its base (106) adjacent to the conical rim (316).

[0042] Fluid is drawn in through the fluid inlet (301) and, under the action of centrifugal force, is thrown outward from the tip of the impeller blades. Since the inclination angles of the diffuser blades (309) and the diffuser base plate (308) correspond to the inclination angle of the impeller blade tip (305), most of the fluid flows along the convex surface (312) of the diffuser blade ridge under the action of centrifugal force. Because the trailing edge (311) of the diffuser blades is slightly curved backward, under the suction force of the subsequent diffuser blades, the fluid is pulled towards the tangential direction of the trailing edge (311) of the diffuser blades, such as... Figure 5E The streamlines (400) are shown. Because the inclinations of the impeller base plate (306), impeller blades (304), diffuser base plate (308), and diffuser blades are the same or similar, a mixed flow of radial and axial flow is generated, and tangential, swirling, and diagonal flows are generated along the convex conical edge (316), as shown... Figure 5E The streamlines (401) are shown. Because the pressure and pressure resistance of the convex surface are lower than in other parts of the region (especially compared to the fluid on the concave surface of the fluid distribution chamber wall (319), laminar flow with very high velocities is generated. Figure 2A , 2B As shown in 2C, when the fluid flows downwards towards the blade to generate vortices and impact the leading edge of the blade, due to the convex curvature of the outer blade leading edge (110), combined with the Coanda effect, the fluid is deflected and flows along the convex curvature of the blade ridge (111) towards the trailing edge of the blade (112), and then impacts the convex curved surface (115) of the inner blade leading edge. Due to the Coanda effect, the fluid is deflected and flows along the convex curved surface (116) of the inner blade ridge towards the trailing edge (117) of the inner blade, which is slightly curved backwards relative to the inner wall circumference (108). In addition, under the action of fluid suction, the fluid flows through the gap between the blades, is pulled towards the convex curved surface of the inner blade ridge, and flows along this surface. Since the convex curved surface of the outer blade leading edge is diagonally outward towards the fluid distribution chamber, it acts as a suction surface in fluid dynamics; while the opposite fluid distribution chamber wall (319) is concave according to the structure of the annular conical vortex chamber (315) (as shown in 2C). Figure 5C and 5D As shown), based on the fluid dynamics, it acts as a pressure surface. Therefore, the suction from the leading edge (110) and the suction surface of the blade ridge (111), as well as the thrust from the distribution chamber wall, causes the fluid to enter the gap between the blades along the streamline (402). Figure 5EAs shown), the fluid flows along the convex curved surface of the inner blade ridge (116) towards the inner blade trailing edge (117). Because the inner blade trailing edge (117) curves slightly backward beyond the circumference (108) of the inner blade, the fluid eventually flows towards the inner blade. As... Figure 2B As shown, the vortex chamber wall (105) pulls the fluid, causing it to flow tightly against the convex surface of the inner blade ridge (116). Because the inner and outer blades are symmetrically arranged on the ring, the fluid flows in relay with each blade, thus generating vortex flow within the vortex chamber (105). The Coanda effect guides or pulls the fluid, causing it to flow tightly against the convex surface of all the blade ridges constituting the inner wall of the vortex chamber (105), thereby forming a forced vortex. The outermost edge of the vortex has the highest rotational speed, and at high rotational speeds, laminar vortex flow is formed because the pressure and pressure drag on the convex surface are much lower than on other surfaces in this region. Because the blades are arranged in a trapezoidal shape, their size gradually decreases from the blade root to the blade tip. When the blades are arranged in the annular region, both the inner and outer sides form inclinations. The outer inclination gradually narrows, and the inner inclination forms a... Figure 2A The conical inner cavity is shown. Since the blade size gradually decreases from the blade root to the blade tip, the flow path from the fluid distribution chamber through the blade leading edge to the blade trailing edge and into the vortex chamber also gradually shortens from the blade root to the blade tip. The circumference of the conical vortex chamber also gradually shortens from the blade root to the blade tip. Therefore, as the flow path shortens, the rotational speed continuously increases. Because the extension chambers (125) of the vortex chamber have the same inclination angle, the rotational speed gradually increases until the fluid flows out from the fluid outlet (127) located at the downstream opening end of the vortex chamber. The resulting vortex (403) is a forced vortex, in which laminar vortices are generated due to the Coanda effect, and the fluid deflects and flows close to the convex curved surface of the inner blade, such as... Figure 5E As shown in the streamline (403), its rotational speed is very high.

[0043] The impeller-type compressor forced vortex generator can be installed together with the other vortex generating devices described above, including: a vortex generating device comprising overlapping double-layer blades with a non-rectangular structure and a cylindrical vortex chamber; a vortex generating device comprising double-convex curved blades with an elliptical cross-section and a non-rectangular structure and a cylindrical vortex chamber; and a vortex generating device comprising double-convex curved blades with an elliptical cross-section and a trapezoidal structure and a conical vortex chamber, the detailed operation of which is the same as described above.

[0044] For the extended cavities of cylindrical or conical vortex chambers, each extended cavity has a circular inner wall, depending on its structure. The vortices within the vortex chamber flow towards a concave surface. When flowing along the concave surface, the flow pressure and pressure drag are higher, while the rotational speed is lower, resulting in greater pressure loss. To address this issue, such as... Figure 6A , 6BAs shown in 6C and 6D, the present invention involves forming alternating convex corrugations (501) and concave corrugations (502) on the inner wall of the vortex chamber extension cavity, and mounting biconvex curved blades (503) on the concave corrugations. Each biconvex curved blade includes an upper convex curved ridge (506) and a lower convex curved ridge (505), wherein the elliptical cross-section on the leading edge (504) side of the blade is more rounded than the elliptical cross-section on the trailing edge (507) side of the blade. Depending on the height, depth, or width of the corrugations, the shape of each blade can be relatively conical or relatively circular. The blades mounted on the concave corrugations (502) can be fixed to the bottom of each concave corrugation by means of circular pins, fins, thin biconvex curved blades, or other means to minimize obstruction or interference to the flow channel. The space below each blade forms a flow channel (508) that flows from the convex surface of the previous convex corrugation (A1) to the convex surface of the next convex corrugation (A2). The leading edge (504) of the blade is designed and arranged to face the direction of fluid flow from the convex surface of the previous convex corrugated surface (A1) towards the inward flow channel, while the trailing edge (507) of the blade is tangent to or close to the outflow axis (a) of the flow gap (508) below the blade, and tangent to the convex surface of the subsequent convex corrugated surface (A2). Figure 6B As shown, these curved corrugations are perpendicular to or substantially perpendicular to the flow direction. The curved corrugation Y is perpendicular to the flow direction X. A convex corrugation (A1) is followed by a concave corrugation (B1), on which double-convex side blades are mounted. The convex and concave corrugations are arranged alternately on the inner wall of the vortex chamber extension cavity in the following order: A1, B1, A2, B2, A3, B3, An...Bn.

[0045] The inner wall surface of the vortex chamber extension cavity has alternating convex and concave corrugations, with double convex side blades installed on the concave corrugations to reduce the increase in flow pressure and decrease pressure drag. Both the corrugations and the double convex side blades are perpendicular to the flow direction. When the fluid flows into the extension cavity of the vortex chamber in a swirling manner, the extension cavity is equipped with a device for accelerating the flow velocity, whose convex surface can reduce the increase in flow pressure and decrease pressure drag. Due to the Coanda effect, the swirling fluid flows close to the convex surface (501) of the inner wall of the vortex chamber extension cavity and impacts the leading edge (504) of the double convex surface blade (503) along the streamline f. Since the curvature of each blade leading edge constitutes a convex surface, and the blade leading edges are arranged at a suitable angle of attack, the Coanda effect is generated, and the fluid is deflected and flows along the convex surface of the blade leading edge in two paths. Fluid path b1 flows along the convex surface of the lower part of the blade and the convex surface of the ridge side of the lower side of the blade (505) towards the trailing edge of the blade (507). The convex surfaces at the bottom of these blades each form a suction surface, while the concave surfaces opposite these convex surfaces form a pressure surface. Under this push-pull action, the fluid mainly flows towards the convex surfaces at the bottom of the blades, where its velocity is much higher than that of the concave surfaces. Because the arrangement of the blade trailing edge is tangent to or close to the outflow axis (a) of the flow gap (508) under the blade, and tangent to the convex surface of the subsequent convex corrugation (A2), the fluid flows closely along the convex surface of the subsequent convex corrugation (A2) along streamline c. Path b2 flows closely along the convex surface of the blade leading edge and the ridge convex surface (506) of the upper surface of the blade towards the blade trailing edge (507). Due to the suction force of the fluid flowing through the gap (508) between the blade trailing edge and the convex surface of the subsequent convex corrugated surface (A2), the fluid flows close to the upper surface (506) of the ridge-side convex corrugated blade and passes through the blade trailing edge (507), flowing along streamline c close to the convex surface of the subsequent convex corrugated surface (A2). Since double convex corrugated blades are symmetrically installed around the inner wall of the vortex chamber extension, with alternating convex and concave corrugations on them, most of the fluid flows from one convex surface to another, i.e., from the convex surface of the corrugated surface to the lower and upper convex surfaces of the blade. These flow directions are consistently repeated during the continuous swirling flow in the vortex chamber extension cavity. Compared to flow on concave or flat surfaces, the pressure, flow pressure increment, and pressure drag are all smaller on convex surfaces, thus achieving higher rotational speeds, lower pressure losses, and being more conducive to maintaining laminar swirling flow.

[0046] The device and forced vortex generator described in this invention employ convex curved blades, utilizing the Coanda effect to deflect the fluid. Even if the convex surface deviates from the original flow direction, the fluid still flows along the convex surface. Compared to concave or flat surfaces, the pressure of flow along a convex surface is lower, resulting in less flow pressure and pressure drag, thus its flow velocity is higher than that along concave or flat surfaces. The flow on the convex curved blades is considered to be flow on a suction surface, thereby forming laminar flow. According to this invention, since the swirling flow in the vortex chamber is deflected by the convex curved blades, kinetic energy is used as the main energy for generating vortices, without the need for a large amount of pressure potential energy to generate vortices. Combined with the low pressure, low flow pressure increase, low pressure drag, and low energy loss (especially pressure loss) flow generated on the convex surface, these are devices / generators for generating high-speed forced vortices and laminar vortices.

Claims

1. The present invention provides a device for generating forced vortices, the device being installed within an external structure, the external structure including a fluid distribution cavity surrounding the vortex generating device (4), double-layer blades being mounted on a base plate (6) and arranged in a ring, the internal cavity of the ring structure serving as a vortex cavity (5), wherein the outer blades (9) are all non-rectangular and have a certain thickness, the outer blade ridges (11) are convexly curved from the leading edge (10) to the trailing edge (12), and the lower side (1) of the blades... 3) It is concave or flat; the inner blade (14) is also non-rectangular and has a certain thickness. The inner blade ridge (16) is convex from the leading edge (15) to the trailing edge (17). The lower side (18) of the inner blade is concave or flat. The structure, size and arrangement of the outer and inner blades make the leading edge (10) and the convex blade ridge (11) of the outer blade (9) diagonally outward toward the fluid distribution chamber, and the trailing edge (12) of the blade diagonally inward. The inner blade (14) is set Beside the trailing edge (12) of the outer blade, there is a gap (19) between the trailing edge (12) of the outer blade and the leading edge (15) of the inner blade. The ridge (16) of the inner blade (14) faces the internal cavity, i.e., the vortex chamber (5). The leading edge (15) of the convex inner blade faces the trailing edge (12) of the convex outer blade. The trailing edge (17) of the inner blade curves backward from the circumference (8) of the inner wall. The direction of the outer blade (9) makes the gap between the trailing edge (12) of the outer blade and the leading edge (15) of the inner blade... The outflow axis (a) is tangent to or close to the axis—that is, tangent to the convex surface of the inner blade ridge (16). The outer blade (9) and the inner blade (14) are symmetrically arranged on the substrate (6) in the above configuration to form an annulus, wherein the inner blade of the first set of blades abuts against the outer blade of the target blade group, and the inner blade of the target blade group abuts against the outer blade of the second set of blades. The ends of the annularly arranged blades are covered by an annular cover plate (23), and the opening end downstream of the vortex chamber forms a fluid outlet (27) for swirling flow.

2. The device for generating forced vortices according to claim 1, wherein the outer blade (109) and the inner blade (114) for generating vortices both have a trapezoidal design that gradually narrows from the blade root to the blade tip, and when the blades are arranged according to the structure of the device for generating forced vortices according to claim 1, a conical vortex chamber (105) can be obtained.

3. The device for generating forced vortices according to claim 1, wherein the blades for generating the vortices are all double-convex curved blades with an elliptical cross-section, the leading edge of which is more rounded than the trailing edge, the device is configured to be installed within an external structure, the external structure including a fluid distribution chamber surrounding the vortex generating device (204), the double-convex curved blades (209) being mounted on a base plate (206) and arranged in a ring (204), wherein, The double-convex curved blade (209) is configured as a non-rectangular shape with a certain thickness that remains constant from the blade root to the blade tip. The configuration, size, and arrangement of the double-convex curved blade (209) are such that the outer leading edge (210) and the outer ridge (211) of the blade face outward along the diagonal towards the fluid distribution chamber, and the outer trailing edge (212) of the blade faces inward along the diagonal. The convex surface of the inner trailing edge (215) of the blade curves slightly backward from the circumference (208) of the inner wall. Subsequent double-convex curved blades (209') are arranged in the same manner, with a certain gap (216) between them. The convex surface of the inner leading edge (213') of the subsequent blade (209') faces the convex surface of the outer trailing edge (212) of the previous blade (209), so that the ridge of the inner surface (214') of the subsequent blade (209') faces the fluid distribution chamber. The internal cavity of the vortex chamber (205) causes the convex curved surface of the inner trailing edge of the blade to face the vortex chamber (205). The inner trailing edge ridge (215') of the subsequent blade (209') bends slightly backward from the circumference (208) of the inner wall of the vortex chamber (205). The arrangement of the leading blade (209) and the subsequent blade (209') is such that the outer trailing edge (212) of the leading blade (209) is tangent to or close to the outflow axis (a) of the blade gap (216), which is tangent to the convex curved ridge of the inner surface (214') of the subsequent blade (209'). Each blade in the configuration is arranged in an annular shape (204), and the blade tip of the annular arrangement is covered by an annular plate (223). The open end of the downstream of the vortex chamber forms a fluid outlet (227) to use the swirling fluid for subsequent processes.

4. The device for generating forced eddies according to claim 3, wherein the blades for generating eddies are all double-sided convex curved blades with an elliptical cross-section, a more rounded leading edge than trailing edge, and a trapezoidal shape with a certain thickness. The blades gradually narrow from the root to the tip, and when these double-sided convex curved blades are arranged according to the structure of the device for generating forced eddies according to claim 3, a conical eddy chamber is formed.

5. The apparatus for generating forced eddies according to any one of claims 1, 2, 3, and 4 further comprises an extension chamber of the eddy chamber.

6. The apparatus for generating forced eddies according to claim 5, wherein the extension chamber of the eddy chamber is cylindrical.

7. The apparatus for generating forced vortices according to claim 5, wherein the extension chamber of the vortex chamber is conical.

8. The apparatus for generating forced vortices according to claim 7, wherein the extension chamber of the vortex chamber is conical, and a fluid accelerator is disposed on the inner surface of the extension chamber. The fluid accelerator is composed of transversely alternating convex corrugations (501) and concave corrugations (502), wherein the corrugations are longitudinal corrugations from upstream to downstream of the extension chamber, the corrugations are wider on the upstream side and gradually narrower on the downstream side along the conical structure of the extension chamber, the straight line Y of the corrugations is perpendicular to or substantially perpendicular to the flow line X, the longitudinal convex corrugations (501) and longitudinal concave corrugations (502) are transversely alternating, and the corrugations are symmetrically and continuously arranged along the entire inner wall of the extension chamber. Each concave corrugation on the wall of the vortex chamber extension chamber... Each curved corrugated surface is equipped with double convex curved blades (503), which are located at a certain distance above the surface of the concave corrugated surface (502) to form a flow channel (508) to connect the fluid from the convex surface of the previous convex curved corrugated surface (A1) to the convex surface of the next convex curved corrugated surface (A2). The arrangement of the double convex curved blades (503) is such that the leading edge (504) of the blade is at a certain height and forms an angle of attack to receive the fluid from the leading convex curved corrugated surface (A1), and the trailing edge (507) of the blade is tangent to or close to the outflow axis (a) of each flow channel (508) below each blade and tangent to the convex surface of the subsequent convex curved corrugated surface (A2).

9. The device for generating forced vortices according to claim 6, wherein the vortex chamber extension chamber is cylindrical, and a flow accelerator is disposed on the inner surface of the extension chamber. The flow accelerator is composed of alternating transverse convex corrugations (501) and concave corrugations (502). The curved corrugations are installed on the inner wall of the extension chamber. The curved corrugations are longitudinal corrugations along the extension chamber from upstream to downstream. Each curved corrugation has the same width and depth over the entire length of the cylindrical extension chamber. The curved corrugations are symmetrically distributed on the inner wall of the extension chamber. The straight line Y of the curved corrugations is perpendicular to or substantially perpendicular to the flow direction line X. The double convex curved blades (503) are installed... Above all the concave corrugations (502) mounted on the inner wall of the vortex chamber extension, the blades are located at a certain distance above the surface of the concave corrugations (502) to form a flow channel (508) to connect the fluid from the previous convex corrugation (A1) to the next convex corrugation (A2). The arrangement of the double convex corrugated blades (503) is such that their leading edges (504) are at a certain height and form an angle of attack to receive the fluid flowing from the convex surface of the previous convex corrugation (A1); and the trailing edges (507) of the blades are tangent to or close to the outflow axis (a) of the flow channel (508) that is tangent to the convex surface of the subsequent convex corrugation (A2).

10. The apparatus for generating forced vortices according to any one of claims 1, 2, 3, 4, 5, 6, 7, 8, and 9, wherein the apparatus for generating vortices is installed in a volute compressor-type forced vortex generator, which comprises a motor and an impeller, for forcibly feeding fluid into the fluid inlet (2) to introduce the fluid into the fluid distribution chamber (3) surrounding the vortex generating apparatus (4), wherein, The fluid distribution chamber (3) gradually narrows and reaches its minimum width when it converges to the baffle (20) next to the fluid inlet (2). The baffle (20) forms a convex curved surface (21) on the side near the fluid inlet opening to guide or pull the fluid to impact the leading edge (10) of the outer blade, thereby uniformly distributing the fluid to all gaps (19) between the blades of the vortex generating device (4). The fluid outlet is axially located at the opening end downstream of the vortex chamber of the vortex generating device.

11. The apparatus for generating forced eddies according to any one of claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the eddy current generating apparatus is installed in an impeller compressor type forced eddy current generator (300), the impeller compressor type forced eddy current generator (300) comprising a fluid inlet (301), a motor, an impeller (304), an impeller base (306), a diffuser base plate (308) inclined at a certain angle, and diffuser blades (309) mounted on the diffuser base plate (308), wherein the diffuser blades (309) are concentrically curved, and their trailing edges (311) are slightly curved inward relative to the circumferential edge of the diffuser base plate (308), the diffuser blades are inclined relative to the radius line perpendicular to the circumferential tangent of the diffuser base plate, and twist along the rotation direction of the impeller (304), the blades (309) have a certain thickness, such that the concave curvature of the lower side (313) of the diffuser blade is reduced, thereby causing the eddy current generating device to move along the concave surface of the diffuser blade (309). 313) The flowing fluid passes over the end of the diffuser blade and flows against the convex curved surface (312) of the ridge side of the subsequent diffuser blade. The diffuser blade (309) is vertically mounted on the diffuser base plate (308), which is tilted at a certain angle so that the upper part of the curved trailing edge (320) of the diffuser blade extends beyond the circumferential edge of the diffuser base plate (308) by a certain distance and is located above the fluid distribution chamber (315), thereby forming a mixed flow, that is, radial flow and axial flow coexist. Tangential flow is generated by the convex curved surface of the tapered edge (316) mounted along the axial direction. The tapered edge extends a certain distance from the diffuser base plate (308), and its tilt angle relative to the vertical direction is the same as or similar to the tilt angle of the diffuser blade that extends beyond the circumferential edge of the diffuser base plate (308). The device for generating forced vortex according to the foregoing claim is axially mounted in the fluid distribution chamber (315), and the fluid outlet is axially located at the opening end downstream of the vortex chamber of the device for generating forced vortex.

12. The device for generating forced vortices according to claim 11, wherein the fluid distribution chamber gradually narrows from the upstream side to the downstream side, so that the fluid is evenly distributed to all parts of the blade gap.

13. An accelerator for increasing the velocity of fluid flow in a flow channel composed of alternating convex corrugated surfaces (501) and concave corrugated surfaces (502), wherein, The line segment Y of the convex corrugated surface is perpendicular to the flow line X, or in other words, the line segment of the convex corrugated surface is quite perpendicular to the flow line; the double convex corrugated blades (503) are installed on all the concave corrugated surfaces (502), with the blades located at a certain distance above the concave corrugated surfaces, so that a flow channel (508) is formed below the blades to connect the fluid from the previous convex corrugated surface (A1) to the next convex corrugated surface (A2); the arrangement of the double convex corrugated blades (503) makes the leading edge (504) of the blades... At a certain height and forming an angle of attack to receive fluid, the fluid flowing from the convex surface of the previous convex corrugated surface (A1) impacts the leading edge (504) of the blade, provided that the trailing edge (507) of the blade is tangent to or close to the outflow axis (a) of the flow channel (508), which is tangent to the convex surface of the next convex corrugated surface (A2), the convex corrugated surface and the concave corrugated surface are arranged alternately, and the double convex corrugated surface blade is mounted on the concave corrugated surface on the fluid flow channel according to the configuration.

14. A diffuser system for an impeller compressor for generating a mixed flow of radial and axial flow to produce tangential flow around a conical or cylindrical rim composed of an impeller (304), an impeller base plate (306), diffuser blades (309), and a diffuser base plate (308), wherein the impeller, impeller base plate, diffuser blades, and diffuser base plate all have a certain inclination angle, preferably the same inclination angle; the diffuser blades (309) have an aerodynamic shape; the ridge side (312) of the diffuser blades (309) is convexly curved from the leading edge (310) to the trailing edge (311); the blades have a certain thickness to reduce the concave curvature of the lower side (313) of the blades; the diffuser blades (309) are vertically mounted on the diffuser base plate (308) such that the upper side of the curved edge (320) of the diffuser blades is tangent to the circumference of the outer bottom edge of the diffuser base plate (308), and the curved edge of the diffuser blades... The upper side extends beyond the edge line of the diffuser base plate (308) to a certain extent. The diffuser blades (309) are inclined and concentrically curved along the rotation direction of the impeller (304). The diffuser blades (309) are arranged radially diagonally, so that the trailing edge (311) of the diffuser blades is slightly curved inward relative to the edge of the diffuser base plate (308). The lower side of the diffuser blades has a certain thickness, so that the fluid flowing out from the concave surface of the trailing edge of the blades is guided to the convex curved ridge surface (312) of the subsequent diffuser blades. The diffuser blades are symmetrically arranged on the diffuser base plate (308) in the above configuration. A conical or cylindrical edge (316) is continuously formed from the diffuser base plate (308) downward. The conical or cylindrical edge is connected to the outer edge of the diffuser base plate (308). The vertical inclination of the conical edge (316) is the same as or similar to the inclination of the upper side of the diffuser blade edge (320) extending beyond the outer edge of the diffuser base plate (308).

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