Compact disk stack type cyclone separator

The compact disk stack type cyclone separator addresses the inefficiency of conventional cyclones by employing a forced vortex system with laminated cones and the Coandă effect, achieving high separation efficiency and a compact design suitable for vacuum cleaners and industrial applications.

JP7703017B2Active Publication Date: 2025-07-04ヤオヴァパンクルルクスナラ
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Patent Information

Application Number
JP2023512126
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-12-30
Filing Date
2021-12-24
Publication Date
2025-07-04
Estimated Expiration
2041-12-24

AI Technical Summary

Technical Problem

Conventional cyclone separators in vacuum cleaners suffer from low separation efficiency for fine dust, requiring multiple cyclones, resulting in a large and bulky design.

Method used

A compact disk stack type cyclone separator with a forced vortex generation system using the Coandă effect, featuring laminated cones and a vortex generation device with symmetrically arranged through holes, generating a laminar swirling flow that separates particles based on specific gravity and size.

Benefits of technology

The separator achieves high separation efficiency with a compact design, effectively separating fine dust and reducing the size of vacuum cleaners, suitable for portable use and various industrial applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The compact disc stack cyclone separator of the present invention comprises a fluid inlet, a forced vortex generator that generates a laminar swirling flow, a conical vortex generation chamber, and axially stacked cones having an upstream open end and a downstream open end. The cones are mounted spaced apart to form narrow gaps between the cones to increase the surface settling area. Fluid containing larger or heavier particles (heavy phase fluid) is subjected to a greater centrifugal force and is pushed out along the outer periphery of the vortex and flows along the inner walls of the cones. After swirling and reaching the stacked cones, it is pushed out along the inner walls of the stacked cones and flows downward while swirling through the narrow gaps between the cones. Fluid containing smaller or lighter particles (light phase fluid) is subjected to a smaller centrifugal force and flows along the inner periphery of the vortex and continues swirling to the next cone. This separation process is repeated depending on the number of axially stacked cones. The separated heavy phase fluid is collected in a heavy phase fluid collection channel located at the bottom open end of the stacked cones and removed through a heavy phase fluid outlet, while the light phase fluid outlet is located at the open end of the last cone in the stacked cones.
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Description

Technical Field

[0001] The present invention relates to a compact disk stack type cyclone separator.

Background Art

[0002] Cyclone separators have been used for over a hundred years. During the past 20 years, cyclone separators have been introduced and widely used as appliances commonly found in households, such as vacuum cleaners according to, for example, US Patent No. 4373228(A). This is because cyclone separators are easier to maintain than conventional vacuum cleaners that use cloth bags, and only require removing the dust collection tray and emptying its contents. Cloth bags are prone to clogging, and when clogged, the suction and dust removal efficiency rapidly decreases. When removed to clean the cloth bag, dust scatters, which is unhygienic and thus affects health. Also, when using a filter screen, it needs to be replaced regularly, which is uneconomical.

[0003] However, using a cyclone separator in a vacuum cleaner still has the drawback that it is impossible to completely separate the fine dust contained in the air before discharging the air that has passed through the cleaner to the surroundings. For this, it is necessary to arrange a plurality of cyclones in a plurality of layers, resulting in a large and bulky cyclone vacuum cleaner. Examples can be found in U.S. Patent Application Publication No. 2006 / 0230724 (A1) and U.S. Patent No. 9451859 (B2). However, since the cyclone separator generates a swirling flow from the tangential inlet of the cyclone separator, the efficiency of separating fine dust is low. The swirling flow flows towards its center, and the flow velocity of the swirling flow increases as the swirling flow flows towards its center. This type of swirling flow is called a free vortex. Since the centrifugal force is proportional to the velocity of the vortex, the centrifugal force of the free vortex is small at the outer periphery of the vortex and large at the inner periphery of the vortex. Therefore, a fluid (light-phase fluid) containing smaller or lower specific gravity particles circulates along the outer periphery of the vortex, which is a place with less centrifugal force, and a fluid (heavy-phase fluid) containing larger or higher specific gravity particles circulates along the inner periphery of the vortex. When the vortex flows near the bottom discharge port of the cyclone, a reverse vortex is generated, which is converted into a forced vortex. The point where the reverse vortex is generated is the separation point of the fluid. At this point, the outermost peripheral part of the vortex is the light-phase fluid generated from the free vortex. The subsequent peripheral part is the heavy-phase fluid, and its innermost peripheral part is the light-phase fluid generated from the forced vortex by the reverse vortex. Therefore, at the separation point, both the light-phase fluid and the heavy-phase fluid are removed from the bottom discharge port of the cyclone.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] When a conventional cyclone fluid separator is used in a vacuum cleaner, problems occur. That is, the conventional cyclone fluid separator cannot completely separate fine dust, has low separation efficiency, and thus requires a large number of cyclone separators, resulting in a large and bulky vacuum cleaner.

Means for Solving the Problems

[0006] The compact disc stack type cyclone separator according to the present invention includes a suction port for supplying fluid to the separator, a fluid distribution chamber, a device for generating a forced vortex by a layered swirling flow, a vortex generation chamber, and a laminated flat head cone having an upstream opening end portion and a downstream opening end portion installed adjacent to the vortex generation chamber in the longitudinal axis direction, wherein each cone is attached so as to be spaced apart from each other to form a narrow gap between the cones to increase the surface sedimentation region, a fluid collection channel for the heavy phase fluid located at the bottom opening of the laminated cone, and adjacent thereto, a fluid accumulation chamber for the heavy phase fluid, a fluid collection channel for the heavy phase fluid, and a discharge port for discharging the heavy phase fluid from the separator. At the opening end portion of the last laminated cone, there is a discharge port for removing the light phase fluid from the separator.

[0007] The fluid enters the separator of the present invention through the axial suction port or the tangential suction port of the separator by the pressure through the upstream suction port, or the suction through the downstream discharge port, or both simultaneously.

[0008] When the fluid enters the separator of the present invention, the fluid is collected in the fluid distribution chamber and distributed to the vortex generating device. The vortex generating device is a conical or cylindrical transmission base having an internal cavity configured with a plurality of through holes symmetrically arranged around the transmission base. There is a through-hole side-edge block beside the through hole, and at the entrance of the through hole, there is a wall surface of the through-hole side-edge block for guiding the fluid into the through hole. At the discharge port of the through hole inside the internal cavity of the transmission base, there is a wall surface of the through-hole side-edge block in the shape of a convex curved edge surface curved towards the inner wall of the transmission base. On the opposite side of the wall surface of the through-hole side-edge block at the entrance of the through hole, there is a linear edge surface directed towards the through hole. The convex curved edge surface curved towards the inner wall of the transmission base is the surface closest to the ejection axis of the through hole. When a fluid having a specific pressure and / or a specific suction force flows through the through hole, the fluid is deflected by the Coandă effect (the ejected fluid tends to flow towards the closest wall surface and along that wall surface even if its wall surface deviates from the ejection streamline of the ejection axis of the through hole. As a result, the pressure in that region becomes low, causing the surrounding fluid to flow inwards and then along that wall surface), and flows along the convex curved edge surface curved towards the inner wall of the transmission base, causing the fluid in the internal cavity of the transmission base, which is part of the vortex generation chamber, to flow inwards and be induced to flow along the convex curved edge surface curved towards the inner wall of the transmission base. Due to the convex curved edge surface curved towards the inner wall of the transmission base, the fluid flows along the inner wall of the transmission base. The symmetrical arrangement of the through holes with respect to both the outer wall and the inner wall around the transmission base, as well as the symmetrical arrangement of the ejection axis of the through holes around the convex curved edge surface and the inner wall of the transmission base, causes the flow of each convex curved surface to flow in a relay manner with each other, generating a swirling flow in the flow on the inner wall of the internal cavity. Due to the Coandă effect, it generates a laminar swirling flow.The dynamic force is highest at the contact point between the convex curved edge surface and the peripheral edge of the inner wall of the transmission base. Therefore, the speed of the vortex is highest at the convex curved edge surface, which is the outermost peripheral edge of the vortex, and the speed of the vortex gradually decreases as the flow approaches the center of the vortex. The centrifugal force changes in proportion to the speed of the vortex. In the centrifugal acceleration gradient profile generated by the forced vortex, the centrifugal force is highest at the outermost peripheral edge and then gradually decreases as it approaches the center of the vortex. In the fluid particle distribution under the influence of the centrifugal force, the heavy-phase fluid is subjected to a greater centrifugal force and is pushed out to flow along the outer peripheral edge of the flow, while the light-phase fluid is subjected to a smaller centrifugal force and circulates along the inner peripheral edge. Since the vortex generated in the separator according to the present invention is a laminar swirling flow, the particles are easily separated into a plurality of distribution layers according to their specific gravity or morphological size, that is, according to whether they are large or small, corresponding to the gradient profile of the centrifugal acceleration generated.

[0009] The vortex generation chamber or a part of the vortex generation chamber is conical. Since its circumference continuously shortens along the axial length of the cone, the acceleration of the swirling speed and the centrifugal force increase along the axial direction. The fluid flow forms a forced vortex in a laminar swirling flow by the vortex generation device, and when swirling in the vortex generation chamber, it accelerates the swirling and increases the centrifugal force. When the centrifugal force increases, an obvious fluid separation layer occurs. The heavy-phase fluid is separated at the outer peripheral part of the vortex, and the light-phase fluid flows through the inner peripheral part of the vortex. Adjacent to the conical vortex generation chamber, there is a laminated flat-head cone having an upstream opening end and a downstream opening end. Each cone has a protrusion that separates the cones and forms a narrow gap between the cones to increase the surface sedimentation area. When the fluid flows from the vortex generation chamber to the first laminated cone through the narrow gap between the cone of the vortex generation chamber and the laminated cone, the circumference of the vortex suddenly increases because the next cone has a longer radius. The outer layer of the vortex consisting of the heavy-phase fluid is pressed against the inner wall of the next cone and swirls downward through the bottom discharge port of that cone and flows into the collection channel for the heavy-phase fluid. This is the gap under the upstream opening end of the laminated cone and the gap between the cone cover and the laminated cone. The light-phase fluid first swirls along the inner peripheral part and then along the outer peripheral part of the vortex, and this vortex swirls along the next part of the inner wall of the cone and continues to swirl through the upper opening end of the cone. The heavy-phase fluid (compared with all the swirling fluids) is extruded when swirling through and passing along the inner wall of the first cone and then swirls along the inner wall of the next cone. This process is repeated as described above and is repeated a plurality of times according to the number of laminated cones until reaching the downstream opening end of the last cone. Thereby, the heavy-phase fluid is separated from all the cones through which the fluid swirls, and the remaining fluid becomes a fluid with smaller or lower specific gravity particles, and the intended light-phase fluid is obtained.

[0010] The stacked cone may be designed such that the opening end of the cone on the downstream side is smaller than the opening end of the cone on the upstream side. The opening end of the stacked cone gradually becomes smaller as it is stacked up to the last cone along the longitudinal length of the axis, and the internal cavity of the stacked cone is conical. Thereby, fluid can be distributed through all the narrow gaps between the cones. When the heavy-phase fluid swirls through the gaps between the cones, this fluid will further swirl along the inner wall of the structure inside the cone covering the stacked cone. A part of the fluid flowing along the wall surface of the stacked cone and the inner wall of the cone covering the stacked cone precipitates into the accumulation chamber of the heavy-phase fluid, which is the gap between the conical or cylindrical external structure and the conical internal structure covering the stacked cone. The heavy-phase fluid in the fluid accumulation chamber can be discharged through a discharge port that may be provided with a valve to be discharged as needed or continuously.

[0011] The wall surface of the fluid accumulation chamber for the heavy-phase fluid on the upper ceiling or side wall may be provided with a discharge port having a filter screen on the wall surface of the external structure for filtering the heavy-phase fluid (contaminated) before discharging it from the separator. The discharge port for the light-phase fluid, also called the clean fluid discharge port, or the opening end of the last stacked cone may be provided with a round tube with a cap seal that closes the linear end discharge port, opens the side discharge port, reduces the axial flow, deflects it to flow out from the side discharge port, and stabilizes the swirling flow in the vortex generation chamber so as to obtain a higher separation efficiency.

[0012] The stacked cone inside the separator can be a solid wall cone or a Coanda screen cone. The Coanda screen cone has a conical structure with a wall covered by wedge wires. The wedge wires have a triangular cross-section and are fixed to the cone structure longitudinally with a narrow gap between each wedge wire. The gap space between the wedge wires is the same along the wire. The wedge wires are arranged around the cone with their flat sides facing inwards to form the inner wall, and the triangular sides face outwards to form the outer wall of the cone. Due to the curvature of the outer perimeter of the cone, the flat side of the next wedge wire forms a rising angle with respect to the flat side of the previous wedge wire (along the turning direction), such that the straight streamline from the flat side of the previous wedge wire flows towards the triangular side wall of the next wedge wire. The heavy phase fluid that swirls around the outer peripheral part of the vortex while receiving a greater centrifugal force under centrifugal force flows along the flat surface of the wedge wire, then flows straight towards the triangular side wall of the next wedge wire due to the Coanda effect, then flows out of the Coanda screen cone and into the gap between the current cone and the next cone, and into the fluid collection channel for the heavy phase fluid. The light phase fluid receives a smaller centrifugal force, flows inside the vortex, flows from the flat surface of the previous wedge wire to the flat surface of the next wedge wire, then flows inside the Coanda screen cone, then swirls axially and flows to the next part of the Coanda screen cone. The light phase fluid that swirls inside the cone in the gap between the cones is entrapped by the newly incoming fluid and returns to the downstream opening end. The process of separating the heavy phase fluid from the light phase fluid, also called contaminant separation, is repeated in all layers of the stacked Coanda screen cones. Since the gap between the wedge wires on the outer wall of the cone is larger than the gap between the wedge wires on the inner wall of the cone, the Coanda screen is less likely to clog.

[0013] The compact disc stack type cyclone separator according to the present invention can be developed into another version that does not require a filter screen or filter element for filtering the heavy phase fluid remaining without precipitation before discharging it from the separator at the discharge port above the accumulation chamber for the heavy phase fluid. Omit the above discharge port, close the discharge port of the light phase fluid originally present at the downstream discharge port of the last stacked cone, form a partition wall above the lower edge of the conical internal structure to separate the accumulation area for the heavy phase fluid, and expand the external structure to be higher than the conical internal structure, so that all the spaces generated by the above transformation become spaces for separating the pre-screened fluid later.

[0014] The space for separating the pre-screened fluid later consists of several small cyclone separators symmetrically attached around the internal structure covering the stacked cone, which has a fluid inlet from the collection chamber for the heavy phase fluid. This fluid inlet is located above the bottom opening end of the last stacked cone. This is to introduce the non-precipitated fluid into the fluid distribution chamber connected to each small cyclone separator. The small cyclone separator has an inverted conical shape. The small cyclone separator consists of a device that generates a forced vortex with a laminar swirling flow using the principle of the Coandă effect, and a fluid discharge port for the separated heavy phase fluid or contaminated fluid at the bottom of the cyclone cone. The removed particles are accumulated in the accumulation chamber, and there may be a discharge port having a valve for discharging the separated particles from the separator. The vortex finder is at the center of the top of the cyclone cone, which is the light phase fluid discharge port for the purified fluid to flow out of the cyclone, and this is the common discharge port at the center of the top of the external structure for removing the purified fluid from each small cyclone of the separator.

[0015] The vortex generation device of the small cyclone separator is a device that generates a forced vortex with a layered swirling flow using the principle of the Coandă effect. Its transmission base is an inverted conical or cylindrical shape with an internal cavity, preferably an inverted conical shape. A plurality of through holes for guiding external fluid into the internal cavity of the transmission base are symmetrically installed around the transmission base of the vortex generation device. There is a through hole side edge block beside the through hole. One side of the edge of the discharge port of the through hole in the internal cavity is a convex curved edge surface that curves towards the inner wall of the transmission base, which is the surface closest to the ejection axis of the through hole compared to the surface of the other through hole side edge. The edge of the through hole and the through hole are symmetrically installed around the inner wall of the transmission base of the vortex generation device.

[0016] When the fluid is separated from the laminated cone, the heavy-phase fluid swirls along the surface sedimentation region which is the wall surface of the laminated cone, and the inner structural wall surface of the cone covering the laminated cone precipitates, is collected, and accumulates in the lower accumulation chamber. The light-phase fluid that does not precipitate (or the fluid containing fine contaminants) flows above the fluid collection channel. This fluid then flows into an inlet connected to a fluid distribution chamber of a small cyclone symmetrically installed around the inner conical structure covering the laminated cone. The fluid in the fluid distribution chamber is distributed to the transmission base of the vortex generation device. By arranging a through-hole having a convex curved edge surface curved toward the inner wall of the transmission base and the ejection axis of the through-hole according to the Coandă profile, the fluid deflects and flows along the convex curved edge surface curved toward the inner wall of the transmission base, guiding the fluid in the inner cavity of the transmission base which is part of the chamber of the vortex generation device to flow inward and flow along the convex curved edge surface curved toward the inner wall of the transmission base. Due to the symmetrical arrangement of a plurality of through-holes with respect to both the outer wall and the inner wall around the transmission base, and the symmetrical arrangement of the ejection axes of the through-holes around the convex curved edge surface and the inner wall of the transmission base, the flowing fluid flows along the convex curved edge surface curved toward the inner wall of the transmission base, flows so as to relay with each other, and thereby flows on the inner wall of the chamber generating a forced vortex with a laminar swirling flow. Since the dynamic energy is highest at the contact point between the convex curved edge surface and the peripheral edge of the inner wall of the vortex generation chamber, the speed of the swirling flow is highest at the convex curved edge surface which is the outermost peripheral edge of the vortex, and the speed of the swirling flow gradually decreases as it approaches the center of the vortex corresponding to the decrease in dynamic energy. Such a vortex is a forced vortex. The centrifugal force changes in proportion to the speed of the vortex. Since a centrifugal acceleration gradient profile is generated by the forced vortex, the centrifugal force is highest at the outermost peripheral edge and then gradually decreases as it approaches the center of the vortex according to the particle distribution under the centrifugal force. That is, the heavy-phase fluid receives a greater centrifugal force, is pushed out, and flows along the outer peripheral edge.The light-phase fluid that is subject to a smaller centrifugal force flows along the inner peripheral portion, and the vortex generated by the vortex generation device of the small cyclone separator according to the present invention is a laminar swirling flow. Therefore, the particles are separated into distribution layers of specific gravity or size according to the centrifugal acceleration gradient profile, and thus can be easily separated. Since the small cyclone has a small diameter, it generates a large vortex velocity, that is, a large centrifugal force. Also, due to this short cyclone radius, the particles are easily centrifuged and flow along the wall surface of the cyclone cone, thereby producing a high precipitation rate due to the centrifugal force, making the separation of fine contaminants very efficient. Since the peripheral portion of the cyclone gradually shortens in the longitudinal direction, the large velocity generated by the vortex flowing in the conical vortex generation chamber gradually increases along the cone to the end opening (downstream opening). This end opening is the fluid discharge port for the heavy-phase fluid, which is also called the fine contaminants contained in the fluid. The cross-sectional area of this bottom discharge port is smaller than the total cross-sectional area of the through holes of the vortex generation device of the small cyclone separator. This is a channel that introduces the fluid flow into the cyclone separator to generate a backflow so that more fluid enters than the amount that can be discharged from the bottom discharge port. Since the generated vortex is a forced vortex, the fluid having the heavy-phase fluid (also called the fine contaminants in the fluid) is separated in the accumulation chamber for the heavy-phase fluid (or the fine contaminants in the fluid) having a discharge port provided with a valve for removing the fine contaminants from the separator at the bottom discharge port. The light-phase fluid (also called the purified fluid) swirls upward to the top of the cyclone cone. A conical tip can be installed at the center of the bottom discharge port to assist the backflow of the swirling flow. At the center of the upper side wall surface of the cone, a vortex finder is provided so that the fluid can be involved and swirl out from the separator. At the discharge port of the vortex finder, in order to improve the separation efficiency, a round tube with a cap seal may be provided to block the linear discharge port and open the side discharge port to prevent the linear flow, deflect the flow through the side discharge port, and stabilize the vortex in the vortex generation chamber. The purified fluid from all the small cyclone separators gathers in the collection channel for the light-phase fluid, and then is sucked or pushed out through the fluid discharge port for the light-phase fluid (or the purified fluid) and discharged from the compact disc stack type cyclone separator according to the present invention.

[0017] The object of the present invention is to produce a cyclone separator having high separation efficiency and a small size, suitable for use in a vacuum cleaner, particularly a portable vacuum cleaner, an air filter of an air conditioner or an air filter of an internal combustion engine, a water purifier, or a fluid separator in various industries. The vortex generating device of the cyclone separator according to the present invention generates a forced vortex type vortex with a laminar swirling flow. The speed of the vortex is the highest at the outer periphery of the vortex and decreases as it approaches the center of the vortex. Since the centrifugal force changes in proportion to the flow velocity of the vortex, the centrifugal acceleration gradient profile obtained from the generated forced vortex corresponds to the distribution of fluid particles under the centrifugal force. That is, the heavy-phase fluid that receives a larger centrifugal force circulates along the outer peripheral portion, and the light-phase fluid that receives a smaller centrifugal force circulates along the inner peripheral portion of the vortex and is clearly separated into a plurality of separation layers, so it is easily separated. Therefore, the separation efficiency of the fluid separator according to the present invention is higher than that of conventional cyclone separators. Conventional cyclone fluid separators generate a vortex by a tangential suction port of the cyclone, generating a free vortex type vortex, generating a swirl toward the center of the vortex, and the speed of the vortex gradually increases. The speed is the highest at the center of the vortex, which is opposite to the distribution of particles under the centrifugal force. The vortex of the conventional cyclone fluid separator changes to a forced vortex type vortex when the vortex flows in the reverse direction. At the reverse flow point, this becomes the separation point of the fluid. The outermost peripheral portion of the vortex is the light-phase fluid generated by the original free vortex. The next layer is the layer of the heavy-phase fluid. Then, the next layer is the light-phase fluid generated by the forced vortex of the reverse flow. At the separation point, both the small particles of the largest layer and the larger particles of the subsequent layer are separated through the bottom discharge port of the cyclone. As a result, conventional cyclone fluid separators used for separating dust or used in vacuum cleaners also discharge fine dust. This reduces the separation efficiency of the cyclone fluid separator. The cyclone fluid separator according to the present invention can generate an axial forced vortex flow, so cones can be stacked axially to increase the surface sedimentation area. One cone is equivalent to a cyclone separator, and thus, by stacking a plurality of them, the surface sedimentation area is significantly increased. This is to greatly enhance the separation efficiency by cones stacked in layers along the axis. In this way, the cones can be stacked in multiple layers in a limited space.Therefore, the cyclone separator equipped with the laminated cone of the present invention is small in size.

Brief Description of the Drawings

[0018]

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Embodiments for Carrying Out the Invention

[0019] The compact disk stack type cyclone separator according to the present invention includes a fluid suction port, a device that generates a forced vortex by a layered swirling flow, a conical vortex generation chamber, and a laminated flat head cone having an upstream side opening end portion and a downstream side opening end portion, wherein each laminated cone has a protrusion that separates the cones and forms a narrow gap between the cones to increase the surface sedimentation region, a laminated flat head cone, a fluid collection channel for the heavy phase fluid located at the bottom discharge port of the laminated cone, a discharge port for the heavy phase fluid, and a discharge port for the light phase fluid at the downstream side opening end portion of the last cone of the laminated cone.

[0020] The above-described compact disk stack type cyclone separator can be used together with a vortex generation device that is a guide vane or an impeller attached to the axial fluid suction port in front of the chamber that generates a forced vortex by a layered swirling flow.

[0021] Hereinafter, the compact disk stack type cyclone separator according to the present invention that uses a device that generates a forced vortex by a layered swirling flow using the Coandă effect will be described.

[0022] Figure 1 shows a compact disk stack type cyclone separator according to the present invention. This compact disk stack type cyclone separator includes a suction port 3 for guiding fluid into the separator, a vortex generating device 2 including a fluid distribution chamber 4, a transmission base 11, a vortex generating device 5 that utilizes the principle of the Coanda effect to generate a layered swirling flow, and a core between with a narrow gap 2 3 to having projections on the cone wall surface that separate each cone by creating a narrow gap 2 to increase the surface sedimentation area, and a laminated flat head no cone 2 1 and and includes a fluid collection channel 25 for the heavy phase fluid, an accumulation chamber 35 for the heavy phase fluid, a discharge port 36 for the heavy phase fluid, and a discharge port 34 for discharging the light phase fluid.

[0023] Figure 2 is a diagram showing the introduction of fluid into the separator according to the present invention. The fluid can enter through the tangential suction port 3 of the separator or the axial suction port 103 of the separator according to Figure 3. The fluid can be taken in using the upstream pressure, or the suction force of the downstream discharge port, or both simultaneously.

[0024] According to Figure 1, when the fluid to be separated is fed into the separator 1 according to the present invention, the fluid is collected in the fluid distribution chamber 4 of the vortex generating device 2 and distributed into the transmission base 11.

[0025] According to Figure 4, this vortex generating device consists of a conical or cylindrical transmission base 11, an internal cavity 12 corresponding to the configuration of the transmission base, and through holes 13 that form a plurality of thin vertical rectangular gaps symmetrically arranged around the transmission base 11. There are a through hole side edge block 14 and an edge wall surface 16 of the entrance of the through hole beside the through hole 13. Where the through hole 13 enters the internal cavity 12, the wall surface of the through hole side edge block is the transmission base of theIt becomes the convex curved edge surface 15 curved toward the inner wall. The through-hole side edge wall surface on the opposite side of the edge wall surface 16 is the edge wall surface 17. The gap between the edge wall surface 16 and the edge wall surface 17 is wide open at the entrance, and then becomes narrow at the through-hole 13 so that the fluid can be easily collected through the through-hole 13. The through-hole 13 is not aligned with the edge wall surface 16, but according to FIG. 5, it is aligned with the edge wall surface 17 which is the ejection axis a of the through-hole.

[0026] According to FIG. 5, the convex curved edge surface 15 curved toward the inner wall of the transmission base is arranged so as to be the surface closest to the ejection axis of the through-hole compared with other edge wall surfaces near the outlet of the through-hole. When a fluid having a specific pressure and / or a specific suction force flows in the through-hole 13, the fluid is deflected by the Coandă effect and flows along the convex curved edge surface 15 curved toward the inner wall of the transmission base along the broken line b, and the fluid in the internal cavity 12 of the transmission base 11 flows inward along the broken line A, and is also induced to flow along the convex curved edge surface 15 curved toward the inner wall of the transmission base along the broken line b. Due to the symmetrical arrangement of the through-holes around the transmission base 11 and the symmetrical arrangement of the ejection axes a of the through-holes around the convex curved edge surface 15 and the inner wall of the transmission base 11, the fluid flows on each convex curved edge surface relay with each other, and by the Coandă effect, a fluid flow is generated on the circumferential surface of the inner wall of the transmission base which is a part of the vortex generation chamber 5 along the broken line B, generating a laminar swirling flow.

[0027] According to FIG. 6, the circumference in FIG. 6 is the dashed line flow B in FIG. 5, and the dynamic energy is maximized at the point where the convex curved edge surface 15 contacts the peripheral surface of the inner wall of the vortex generation chamber. Therefore, the velocity of the vortex is highest at the convex curved edge surface 15, which is the outermost circumference of the vortex shown as a circumference in FIG. 6. The velocity of the vortex gradually decreases as the vortex approaches the center of the vortex in correspondence with the attenuation of the dynamic energy. Such a vortex is a forced vortex. In the gradient profile of the centrifugal acceleration generated by the forced vortex, the centrifugal force is highest at the outermost peripheral edge as shown in the schematic diagram of FIG. 6, and gradually decreases as it approaches the center of the vortex. In the fluid particle distribution under the centrifugal force, the heavy-phase fluid is subjected to a greater centrifugal force and is centrifugally separated to the outer peripheral edge, while the light-phase fluid is subjected to a smaller centrifugal force and thus circulates along the inner peripheral edge. Therefore, as a result of the vortex generated by the vortex generation device according to the present invention, which is a laminar swirling flow, the particles are separated into a plurality of distribution layers according to their specific gravity or size, that is, according to whether they are large or small, in correlation with the generated centrifugal acceleration gradient profile, and thus are easily separated.

[0028] According to FIG. 1, the vortex generation chamber 5 or a part of the vortex generation chamber is frustum-shaped, and the circumference of the open end of the downstream cone is shorter than the circumference of the open end of the upstream cone, thereby generating an acceleration of the vortex and increasing the centrifugal force along the longitudinal axis of the vortex generation chamber 5.

[0029] According to FIGS. 1 and 7, adjacent to the conical vortex generation chamber 5, there is a laminated at least one cone 2 1 is having both an upstream open end and a downstream open end. Each cone is separated from each other by a narrow gap of the between them 10、 2 3 toIt has protrusions that form and increase the surface sedimentation area. When the swirling flow reaches the first stacked cone adjacent to the opening end 7 of the vortex generation chamber, the diameter of the subsequent cone 21 is larger than the diameter of the opening end of the cone of the vortex generation chamber 5, so the outer periphery of the vortex suddenly becomes longer. The outer peripheral vortex containing the heavy-phase fluid is centrifuged and swirls along the inner wall 9 of the next cone 21, descends while swirling to the opening end at the bottom of that cone, and flows into the fluid collection channel 25 for the heavy-phase fluid. This is the gap at the bottom opening end of the stacked cone, and they are the spaces between the stacked cone and the conical internal structure 31 according to FIGS. 1 and 8 that covers the bottom opening end of the stacked cone. First, it rotates around the inner peripheral edge and then rotates around the outer peripheral edge of the vortex The light-phase fluid will swirl along the inclined inner wall surface 9 of the next cone. This fluid continues to circulate towards the downstream opening end 24 of the cone. When the swirling of the fluid passes through the inner wall 9 of the first stacked cone, the heavy-phase fluid (compared to all the swirling fluids) will be centrifuged and follow the inner wall 22 of the next cone. The above separation process is repeated several times according to the number of stacked cones, and this separation process is carried out from the first stacked cone to the downstream opening end of the last cone, which is a channel aligned with the discharge port 34 of the external structure according to FIG. 9.

[0030] According to FIG. 1, the heavy-phase fluid swirls downward from the gap 23…n between the cones 10, and then flows along the inner wall of the inner cone structure 31 that covers the stacked cone. This fluid swirls along the inner wall of the stacked cone and the inner wall 30 of the conical internal structure 31 that covers the stacked cone, and a part of the particles of the fluid settles into the accumulation chamber 35 for the heavy-phase fluid, which is the space between the conical or cylindrical external structure 33 and the conical internal structure 31 that covers the stacked cone according to FIG. 8, through the discharge port 32 at the bottom edge of the conical internal structure 31. The heavy-phase fluid in the fluid accumulation chamber can be discharged through the discharge port 36, and a valve 37 may be provided to discharge the fluid appropriately or continuously.

[0031] The non-settling fluid in the accumulation chamber for the heavy-phase fluid swirls upward to reach the upper part of the accumulation chamber for the heavy-phase fluid. This part can be provided with a discharge port including a filter screen on the wall surface of the external structure 33 according to FIG. 9 in order to filter the contaminated heavy-phase fluid before discharging it from the separator.

[0032] According to FIGS. 1, 17a, and 17b, for the discharge port 34 for the light-phase fluid, i.e., the uncontaminated fluid, in order to enhance the separation efficiency, the linear discharge port is closed and the side discharge port 404 is opened, and a round tube equipped with a cap seal 401 is installed to block and deflect the direct flow and make it swirl through the side discharge port 404 to maintain the swirling flow in the chamber.

[0033] The laminated cone in the separator may be a solid wall cone or a Coandă screen cone according to FIG. 10. The Coandă screen cone 21’ is composed of a conical structure covered with wedge wires as the wall surface and having thin gaps between the wedge wires. The wedge wires are wires having a triangular cross-section and are adhesively attached longitudinally to the conical structure. The gaps between the wedge wires are the same along the wires. The wedge wires are arranged around the cone with the flat side facing inward as the inner wall, and the triangular vertex side faces outward to become the outer wall of the cone. The wedge wires arranged around the cone have the curvature of the circumference of the cone, and the flat side of the next wedge wire has a rising angle of w degrees with respect to the flat side of the previous wedge wire. As shown by the solid streamline, a fluid flow is generated from the flat side of the previous wedge wire straight toward the triangular side wall of the next wedge wire. The heavy-phase fluid flowing along the outer circumference of the vortex due to the Coandă effect flows along the flat side of the wedge wire and then directly flows to the triangular side wall of the subsequent wedge wire, and then flows out from the Coandă screen and flows into the gap 23 between the next cones according to FIG. 1, and then enters the collection channel 25 for the heavy-phase fluid while swirling. First, it rotates around the inner peripheral edge and then rotates around the outer peripheral edge of the vortex The light-phase fluid swirls inside the Coandă screen cone and then, as a result, swirls and flows in the next gap while swirling HeavyThe process of separating the immiscible fluid from the light-phase fluid (also referred to as removing contaminants) is carried out in all layers of the laminated Coanda screen cones. Since the gap between the wedge wires on the outer wall is larger than the gap between the wedge wires on the inner wall, the Coanda screen is less likely to become clogged. gap and

[0034] According to FIG. 18, the separation efficiency of the compact disc stack type cyclone separator (CDSCS) according to the present invention can be optimized by connecting a number of sets of the compact disc stack type cyclone separator according to the present invention that uses a device for generating a forced vortex in a laminar swirling flow on the inner wall of the vortex generation chamber by applying the principle of the Coanda effect. In particular, in the case of a fluid separation process for industrial applications, the fluid to be separated is introduced into the separator through the inlet 403. After being separated by the separator (CDSCS I) according to the present invention, the heavy-phase fluid is sent into the storage tank 1 (storage section I) through the discharge port 436, while the light-phase fluid continues to swirl to the next separator through a cylindrical connecting pipe connecting the light-phase fluid discharge port of the first separator and the upstream inlet of the vortex generation chamber of the second separator (CDSCS II), and flows into the vortex generation chamber of the second separator (CDSCS II). The vortex is accelerated by the viscosity of the accelerating fluid and the fluid to be accelerated. The accelerating fluid is injected into the inlet 503 at a pressure that generates a vortex with a higher speed than the speed generated by the vortex generation device of the first separator 1. The separated heavy-phase fluid is discharged from the discharge port 536 into the storage tank 2 (storage section II) and is continuously returned through the inlet 503 to accelerate the vortex. This separation is carried out using both the fluid coming from the separator 1 (CDSCS I) and the accelerating fluid accumulated in the storage tank 2 (storage section II). When the particle size or specific gravity of the separated fluid in the storage tank 2 becomes uniform, the separated fluid is discharged from the storage tank 2.

[0035] ​The separators can be connected in the required number. Since the speed of the vortex is accelerated and gradually increases, it increases layer by layer. The centrifugal force generated gradually becomes larger. Therefore, fluids with very small particles can be separated, and fluids can also be separated in each layer to obtain the desired particle size.

[0036] According to FIG. 11, in the compact disc stack type cyclone separator according to the present invention, the discharge port for non-settling fluid located above the accumulation chamber 35 for the heavy-phase fluid is omitted, so that it can be developed into another model that does not require cleaning or replacement of the filter (maintenance-free). The compact disc stack type cyclone 201 according to the present invention includes a suction port 203 for guiding fluid into the separator, a vortex generating device 202 composed of a fluid distribution chamber 204, a transmission base 211, and a vortex generating device 205 that utilizes the principle of the Coandă effect to generate a forced vortex with a layered swirling flow. Each cone is separated to form a narrow gap 22 3 to between them, and the laminated flat head cone 22 having protrusions on the cone wall surface that increase the surface sedimentation region 1 and , a fluid collection channel 225 for the heavy-phase fluid, an accumulation chamber 234 for the heavy-phase fluid, a discharge port 236 for the heavy-phase fluid, a suction port 240 for introducing the light-phase fluid remaining without sedimentation in the fluid collection channel for the heavy-phase fluid into the small cyclone fluid separator 241, a discharge port 246 for the heavy-phase fluid located at the bottom of the cone, a fine particle accumulation chamber 235 for contaminants, and a discharge port 251 for discharging the clean fluid from the small cyclone fluid separator to the outside.

[0037] According to FIG. 11, when the required separation fluid is introduced into the separator 201 according to the present invention, the fluid is distributed through the meshed vent (g) before being discharged into the fluid distribution chamber 204 surrounding the transmission base 211 to screen large contaminants and distribute them into the transmission base 211. Therefore, the fluid is distributed through the cone 209.

[0038] According to FIG. 4, since the transmission base 211 is the same as the transmission base 11, the inventors etc. use the same drawing for explaining the transmission base 11. The transmission base 11 has a conical shape with an internal cavity 12, and there are through holes 13 which are a plurality of thin vertical rectangular gaps symmetrically arranged around the transmission base 11. There is a through-hole side-edge block 14 having a side wall 16 at the entrance of the through hole beside the through hole 13. Where the through hole 13 enters the internal cavity 12, the part of the through-hole side-edge block 14 inside the internal cavity is a convex curved edge surface 15 that curves towards the inner wall of the transmission base. The wall surface on the opposite side of the edge wall surface 16 beside the through hole is the edge wall surface 17. The gap between the edge wall surface 16 and the edge wall surface 17 is wide at the entrance and then becomes narrow at the through hole 13, making it easy to collect the fluid flowing through the through hole 13. The through hole 13 is not aligned straight along the edge wall surface 16, but is aligned with the edge wall surface 17 that determines the ejection axis of the through hole.

[0039] According to FIG. 5, the vortex generating device The screen is shown in Figure 11 vortex generating device The screen andSince it is the same, this device will be described in detail with reference to FIG. 5. The convex curved edge surface 15 that curves toward the inner wall of the transmission base is arranged as the surface closest to the ejection axis a of the through hole 13. When a fluid having a specific pressure and / or a specific suction force flows through the through hole 13, the fluid is deflected by the Coandă effect and flows along the convex curved edge surface 15 that curves toward the inner wall of the transmission base along the broken line b, entrapping the fluid in the internal cavity 12 of the transmission base 11 along the broken line A and guiding it to flow along the convex curved edge surface 15 that curves toward the inner wall of the transmission base along the broken line b, thereby flowing the fluid along the inner wall of the transmission base. The plurality of through holes 13, the convex curved edge surface 15, and the ejection axes a of the through holes around the inner wall of the transmission base 11 are arranged symmetrically. Therefore, the fluid flows on each convex curved surface 15 that curves toward the inner wall of the transmission base and flows so as to relay each other, thereby flowing along the periphery of the inner wall of the transmission base along the broken line B and generating a vortex in the internal cavity 12 which is part of the vortex generation chamber (according to FIG. 11). Due to the Coandă effect, the generated vortex is a forced vortex by a laminar swirling flow.

[0040] According to FIG. 6, the kinetic energy is maximum at the point where the convex curved surface 15 contacts the circumferential surface of the inner wall of the vortex generating chamber, and therefore the velocity of the vortex is highest at the convex curved edge surface 15, which is the outermost periphery of the vortex. That is the flow along dashed line B in FIG. 5, shown as a circumference in FIG. 6. The velocity of the vortex gradually decreases as the vortex approaches the center of the vortex as the kinetic energy decreases. Such a vortex is a forced vortex. Since the centrifugal force varies directly proportional to the velocity of the vortex, in the gradient profile of the centrifugal acceleration caused by a forced vortex, the centrifugal force is highest at the outermost periphery and gradually decreases as the vortex approaches the center of the vortex. As shown in the schematic diagram of FIG. 6, when a fluid particle is under centrifugal force, the heavy phase fluid experiences a larger centrifugal force and is centrifuged to circulate around the outer periphery. The light phase fluid experiences a smaller centrifugal force and circulates around the inner periphery. The result of the vortex generated by the vortex generating device according to the present invention is a laminar swirling flow. The particles are easily separated because they are separated into multiple distribution layers according to their specific gravity or size, which corresponds to the centrifugal acceleration gradient profile generated.

[0041] 11, adjacent to the conical vortex generating chamber 205 are a number of axially stacked truncated cones 221 having upstream and downstream open ends. of the A small gap between 210 When the swirling fluid reaches the first cone 221 of the stacked cones, the outer periphery of the swirling flow is made of heavy phase fluid, and the swirling flow swirls along the inner wall 209 of the cone and flows through the gaps between the cones. 210 The flow swirls downward through the cone and swirls to the bottom outlet of the cone. The swirl flows into a fluid collection chamber 225 for the heavy phase fluid. This is the gap at the bottom outlet of the stacked cone, which is the space between the bottom outlet of the stacked cone and the conical interior structure 231 that covers the stacked cone. First, it rotates around the inner peripheral edge and then rotates around the outer peripheral edge of the vortex The light phase fluid continues to swirl and travels further along the inner wall surface 209 of the cone, downstreamIt will continue towards the side opening end 224. However, the heavy-phase fluid (compared to all the swirling fluids) will be pushed towards the inner wall 222 of the next cone when swirling and passing through the inner wall of the first cone. The above process will be repeated several times according to the number of stacked cones. Separation is carried out on the conical wall surfaces of the surface sedimentation regions of all layers. The heavy-phase fluid is separated into the fluid collection chamber 225 for the heavy-phase fluid through the narrow gap between the cones. The vortex continues to swirl along the wall surface of the conical internal structure 231, which is another surface sedimentation region, precipitates, descends through the discharge port 232 of the conical internal structure, and accumulates in the fluid accumulation chamber 234 for the heavy-phase fluid. This fluid collection chamber 234 for the heavy-phase fluid contains fine particles which are contaminants from Accumulation chamber 235 separate from It has a separation wall 238 and a discharge port 236 for the heavy-phase fluid which may have a valve 237 that is opened and closed to remove large particles from the separator if necessary. The fluid that does not settle swirls upward above the fluid collection chamber 225 for the heavy-phase fluid. On the upper part of the inner wall 230 of the conical internal structure 231 covering the stacked cones, there is an inlet 240 for introducing the fluid into a fluid distribution chamber 242 that distributes the fluid into the small cyclone separator 241

[0042] According to FIGS. 16 and 11, several small cyclone fluid separators 241 are symmetrically attached around the upper part of the outer wall of the conical internal structure 231. In the space between the external structure 233 and the conical internal structure 231, there is a partition wall 249 that separates the space into the upper and lower parts of the cyclone. The small cyclone fluid separators 241 are attached to the partition wall 249. The vortex finder tube 245 of each cyclone has a discharge port 248 that leads to the upper space above the cyclone. The bottom discharge port 246 of the cyclone opens into the space below the cyclone, which is an accumulation chamber for the separated fine contaminated particles

[0043] According to FIGS. 12 and 13A, the small cyclone fluid separator 241 has an inverted conical shape, and includes a vortex generator 243 that utilizes the principle of the Coandă effect to generate a forced vortex in a laminar swirling flow, an inverted conical vortex generation chamber 244, a bottom discharge port 246 of the cyclone cone that is a discharge port for the heavy-phase fluid, a vortex finder 245 that is a round tube attached to the center of the upper cover 249 of the cyclone and extends downward into the vortex generation chamber, and a vortex finder suction port 247. At the end of the vortex finder discharge port 248, there is a discharge port for the clean fluid. According to FIG. 13B, at the center of the bottom discharge port 246' of the cyclone cone, there may be a conical tip 252' for assisting in swirling the flow reversely upward. The widest part of its circumference is smaller than the circumference of the bottom discharge port 246' of the cyclone, and forms an annular space as the bottom discharge port 246' of the cyclone.

[0044] According to FIGS. 14 and 15, the vortex generator of the small cyclone separator includes an inverted conical transmission base 243 provided with several through holes 313 symmetrically arranged around the transmission base 243. There are through hole side edge blocks 314 beside the through holes. At the entrance of the through hole 313, there is a hole side edge wall surface 316. On the opposite side of the through hole side edge wall surface 316, there is a hole side edge wall surface 317. The gap between the hole side edge wall surface 316 and the hole side edge wall surface 317 is wide at the entrance and becomes narrower as it approaches the through hole 313. The hole side edge wall surface 316 is not linear within the internal cavity. The edge wall surface 317 is aligned with the through hole 313 and is aligned with the ejection axis a of the through hole. The through hole side edge wall surface within the internal cavity becomes a convex curved edge surface 315 that curves toward the inner wall of the transmission base. The convex curved edge surface 315 that curves toward the inner wall of the transmission base is the surface closest to the ejection axis of the through hole compared to the hole side edge wall surface on the opposite side at the inner discharge port of the through hole on the opposite side of the convex curved edge surface 315 that curves toward the inner wall of the transmission base.

[0045] According to FIG. 11, the fluid is the laminated cone 22 1 toAs the heavy-phase fluid passes through the separation process, it swirls along the surface sedimentation region of the stacked cone and the inner wall 230 of the conical internal structure 231 covering the stacked cone. This fluid precipitates and is collected in the bottom accumulation chamber, which is an accumulation chamber for the heavy-phase fluid. The fluid that remains without precipitating or is contaminated with fine particles swirls upward, flows up to above the fluid collection chamber 225, then flows into the suction port 240 that sends the fluid into the fluid distribution chamber 242, and flows into a plurality of small cyclone fluid separators 241 symmetrically installed around the conical outer structure 231 covering the stacked cone. The fluid is introduced into the fluid distribution chamber 242 and then distributed into the transmission base 243 of the vortex generation device of the small cyclone fluid separator.

[0046] According to FIG. 15, the fluid flows through the through-hole 313 of the transmission base of the vortex generation device that utilizes the Coandă effect principle. By arranging the convex curved edge surface 315 curved toward the inner wall of the transmission base to be the surface closest to the ejection axis a of the through-hole according to the Coandă profile, the fluid is deflected and flows along the convex curved edge surface 315 curved toward the inner wall of the transmission base along the broken line b, entrains the fluid in the internal cavity 312 of the transmission base, and flows inward along the broken line A, and is induced to flow along the convex curved edge surface 315 curved toward the inner wall of the transmission base along the broken line b. The through-hole 13, both the outer wall and the inner wall around the transmission base, the convex curved edge surface 315, and the ejection axis a of the through-hole around the inner wall of the transmission base are symmetrically arranged. Thereby, the fluid flows on each convex curved edge surface curved toward the inner wall of the transmission base and flows so as to relay each convex curved edge surface. Thereby, along the broken line B, a flow is generated on the periphery of the inner wall of the transmission base, which is a part of the inner wall of the vortex generation chamber 244 of the cyclone separator according to FIG. 11. Due to the "Coandă effect", a layered swirling flow is generated.

[0047] According to FIG. 6, since the vortex generating device 243 of the small cyclone fluid separator 241 has the same operating principle as the vortex generating device 11, it will be described with reference to FIG. 6. The dynamic energy is maximized at the point where the convex curved edge surface contacts the peripheral surface of the inner wall of the vortex generating chamber. Therefore, the vortex velocity is highest at the outermost periphery of the vortex in FIG. 6 and along the flow along the broken line B in FIG. 15, which is the convex curved edge surface. The vortex velocity gradually decreases as the swirling flow approaches the center of the vortex in response to the decrease in dynamic energy. This is a forced vortex type of vortex. In the gradient profile of the centrifugal acceleration generated by the forced vortex, the centrifugal force is highest at the outermost peripheral edge and gradually decreases as it approaches the center of the vortex, which corresponds to the distribution of particles under the centrifugal force. That is, the heavy-phase fluid is pushed to the outer peripheral edge by a greater centrifugal force, and the light-phase fluid flows along the inner peripheral edge under a smaller centrifugal force. The vortex generated by the vortex generating device of the small cyclone separator according to the present invention is a laminar swirling flow. The fluid particles are separated and distributed into a plurality of distribution layers according to their specific gravity or size, that is, according to whether they are large or small, corresponding to the centrifugal acceleration gradient profile, so they are easily separated.

[0048] According to FIG. 11, since it is a small cyclone 241, the diameter of the vortex generation chamber 244 is small, the speed of the vortex is high, and a large centrifugal force is generated. Coupled with the short radius of the vortex, the swirling particles are easily pushed toward the wall surface of the cyclone cone that is the vortex generation chamber 244. Therefore, the precipitation rate is high, and the high-speed vortex swirling in the inverted conical vortex generation chamber continuously becomes smaller longitudinally from the upstream side to the downstream side due to the periphery of the vortex generation chamber. Thus, the swirling speed is accelerated when swirling downward toward the bottom discharge port 246, which is the discharge port of the heavy-phase fluid also called fine contaminants in the contaminated fluid. Since the cross-sectional area of the bottom discharge port 246 is smaller than the total cross-sectional area of all the inlets of the transmission base of the vortex generation device of the small cyclone separator that sends the fluid into the vortex generation chamber 244, when a fluid flow exceeding the capacity of the bottom discharge port 246 enters, it discharges it, generating an upward reverse swirling flow. The heavy-phase fluid also called fine contaminants is separated into the accumulation chamber 235 for fine contaminants at the bottom discharge port 246. There is also a discharge port 239a that may have a valve 239b for removing fine contaminants from the separator. The light-phase fluid or clean fluid swirls upward toward the top of the cyclone, passes through the inlet 247 of the vortex finder while swirling, and then passes through the discharge port 248 of the vortex finder 245 at the center of the upper cover 249 of the cyclone cone while swirling. The clean fluid from each small cyclone fluid separator is collected in the clean fluid collection chamber 250. Then, it is discharged through the discharge port 251.

[0049] According to FIGS. 17a and 17b, the discharge port of the vortex finder may include a round tube with a cap seal 401 that closes the linear discharge port of the vortex finder, opens the side discharge port 404, blocks the direct flow, deflects the flow through the side discharge port 404, and helps to stabilize the vortex in the vortex generation chamber to enhance the separation efficiency.

[0050] Best Mode of the Invention As described in the detailed description of the present invention.

Claims

**Claim 1** A fluid suction port, a forced vortex generator for generating a stratified swirling flow that generates a forced vortex using the principle of the Coandă effect, a conical vortex generation chamber (5), and an axially laminated cone (21) having an upstream opening end and a downstream opening end, wherein the cones are attached to be spaced apart from each other to form a narrow gap (10) between the cones to increase the surface sedimentation area, an axially laminated cone (21), a collection channel (25) for a fluid (heavy-phase fluid) containing larger or higher specific gravity particles, a discharge port (36) for the heavy-phase fluid, and a discharge port (34) for a fluid (light-phase fluid) containing smaller or lower specific gravity particles. The device for generating a forced vortex by a stratified swirling flow using the principle of the Coandă effect includes a tangential suction port (3) on the outer wall of the fluid distribution chamber, a fluid distribution chamber (4), a through hole (13) for guiding the fluid into the internal cavity (12) of the transmission base which is part of the conical vortex generation chamber (5), a through hole side edge block (14), and a transmission base (11) including a convex curved edge surface (15) curved toward the inner wall of the transmission base. The surface is the surface closest to the ejection axis (a) of the through hole, and the through hole (13), the through hole side edge block (14), and the convex curved edge surface (15) curved toward the inner wall of the transmission base are symmetrically arranged around the transmission base on both the outer wall and the inner wall, a compact disc stack type cyclone separator. **Claim 2** A fluid suction port, a forced vortex generator for generating a stratified swirling flow that generates a forced vortex using the principle of the Coandă effect, a conical vortex generation chamber (5), and an axially laminated cone (21) having an upstream opening end and a downstream opening end, wherein the cones are attached to be spaced apart from each other to form a narrow gap (10) between the cones to increase the surface sedimentation area, an axially laminated cone (21), a collection channel (25) for a fluid (heavy-phase fluid) containing larger or higher specific gravity particles, a discharge port (36) for the heavy-phase fluid, and a discharge port (34) for a fluid (light-phase fluid) containing smaller or lower specific gravity particles. A device that generates a forced vortex by means of a stratified swirling flow utilizing the Coandă effect principle guides the fluid into a fluid distribution chamber (4) and through a through-hole (13) that guides the fluid into an internal cavity (12) of a transmission base, which is part of a conical vortex generation chamber (5), and includes a through-hole side edge block (14) and a convex curved edge surface (15) that curves towards the inner wall of the transmission base, and is provided with an axial fluid suction port (3) for distributing the fluid into a transmission base (11). The surface is the surface closest to the ejection axis (a) of the through-hole, and the through-hole (13), the through-hole side edge block (14), and the convex curved edge surface (15) that curves towards the inner wall of the transmission base are symmetrically arranged around the transmission base on both the outer wall and the inner wall, a compact disk stack type cyclone separator. **Claim 3** A fluid suction port (203), a forced vortex generator for generating a stratified swirling flow that utilizes the principle of the Coandă effect to generate a forced vortex, a conical vortex generation chamber (205), and an axially laminated cone (221) having an upstream-side opening end and a downstream-side opening end, wherein the cones are attached to be spaced apart from each other to form a narrow gap (210) between the cones to increase the surface sedimentation region, an axially laminated cone (221), a collection channel (225) for the heavy-phase fluid, and an accumulation chamber (234) for the heavy-phase fluid. A compact disk stack type cyclone separator, wherein the light-phase fluid (including fine contaminants) is introduced into a fluid distribution chamber (242) through a suction port (240) for the light-phase fluid and into a small cyclone separator (241) provided with a device for generating a forced vortex by a stratified swirling flow that utilizes the principle of the Coandă effect. The device for generating a vortex includes an internal cavity (312) and a transmission base (243), and an inverted conical transmission base (243) having a plurality of through holes (313) symmetrically installed around the transmission base and through-hole side-edge blocks (314) located beside each through hole. The inner through-hole side-edge wall surface located within the internal cavity of the transmission base is a convex curved edge surface (315) curved toward the inner wall of the transmission base, which is the surface closest to the ejection axis (a) of the through hole. The through holes (313), the ejection axis (a) of the through holes, the through-hole side-edge blocks (314), and some convex curved edge surfaces (315) curved toward the inner wall of the transmission base are symmetrically arranged around the transmission base (243) on both the outer wall and the inner wall of the transmission base. The internal cavity (244) of the cyclone cone for generating a vortex, which is inverted conical, and the fluid discharge port of the heavy-phase fluid are located at the bottom discharge port (246) of the cyclone. The vortex finder (245) of the cyclone and the fluid discharge port of the light-phase fluid located at the upper discharge port (248) of the vortex finder. Some small cyclone separators are symmetrically installed around the upper part of the conical internal structure (231) in the upper space between the conical internal structure (231) and the external structure (233). The upper space isAt the upper part of the cyclone cone, there is an upper partition wall (249) that divides the space between the conical internal structure and the external structure into a lower chamber (235) for collecting the heavy-phase fluid and an upper chamber (250) for collecting the light-phase fluid. The clean separated fluid or the light-phase fluid exiting from the small cyclone separator is collected and taken out through the discharge port (251). A device that generates a forced vortex by means of a stratified swirling flow utilizing the Coandă effect principle guides the fluid into a fluid distribution chamber (242) and through a through-hole (313) that guides the fluid into an internal cavity (312) of a transmission base, which is part of a conical vortex generation chamber (205), and includes a through-hole side edge block (314) and a convex curved edge surface (315) that curves towards the inner wall of the transmission base, and is provided with an axial fluid suction port (103) for distributing the fluid into a transmission base (243). The surface is the surface closest to the ejection axis (a) of the through-hole, and the through-hole (313), the through-hole side edge block (314), and the convex curved edge surface (315) that curves towards the inner wall of the transmission base are symmetrically arranged around the transmission base on both the outer wall and the inner wall, a compact disk stack type cyclone separator. **Claim 4** The compact disk stack type cyclone separator according to any one of claims 1 to 3, having a device that generates a forced vortex by means of a stratified swirling flow, and includes guide vanes axially installed in the fluid suction port in front of the vortex generation chamber, and the plurality of guide vanes are spiral in a direction and at an angle capable of generating a forced vortex by means of a stratified swirling flow. **Claim 5** It includes an impeller axially installed in the fluid suction port in front of the vortex generation chamber, and the blades of the plurality of impellers are spiral in a direction and at an angle capable of generating a forced vortex in a stratified swirling flow. A compact disk stack type cyclone separator according to any one of claims 1 to 3, having a device for generating a forced vortex in a stratified swirling flow.

6. The downstream opening end of the laminated cone is smaller than the upstream opening end of the cone, and a conical cavity chamber is formed inside the laminated cone to distribute the fluid to swirl downward through all the narrow gaps between the cones. A compact disk stack type cyclone separator according to any one of claims 1 to 3.

7. The cone wall surface of the laminated cone is a solid wall surface. A compact disk stack type cyclone separator according to any one of claims 1 to 3.

8. The laminated cone is a wedge wire with a triangular cross-section, and the flat side surface of the wire is adhered longitudinally along the cone structure so as to face inward and function as the inner wall (22') of the cone. The wall surface is covered by a Coanda screen cone (21'), and the triangular side of the wire faces outward and functions as the outer wall (23') of the cone. The wedge wires are attached around the cone leaving a narrow gap between two adjacent wedge wires, and due to the curvature of the periphery of the cone, the flat side surface of the next wedge wire has a rising angle with respect to the flat side surface of the previous wedge wire. A compact disk stack type cyclone separator according to any one of claims 1 to 3.

9. On the upper part of the accumulation chamber for the heavy-phase fluid, a discharge port equipped with a filter screen or a filter element is installed on the wall surface of an external structure (33) for filtering the heavy-phase fluid before discharging it from the separator. A compact disk stack type cyclone separator according to claim 1 or 2.

10. At the discharge port for the light-phase fluid, a round tube equipped with a cap seal 401 that closes the linear discharge port and opens a side discharge port on the side of the tube is installed. A compact disk stack type cyclone separator according to any one of claims 1 to 3.

11. At the center of the bottom outlet of the small cyclone separator (241') which is the outlet (246') for the heavy-phase fluid, a conical pointed body (246') having a diameter smaller than the diameter of the bottom outlet of the cyclone cone (252') is installed to assist the reverse swirling flow. The compact disk stack type cyclone separator according to claim 3.

12. A fluid inlet (240), a fluid distribution chamber (242), and a conical or cylindrical transmission base (243), wherein the conical or cylindrical transmission base (243) comprises an internal cavity (312), a plurality of through holes (313) symmetrically installed around the transmission base (243), and a through-hole side-edge block (314). The edge surface of the through-hole side-edge block within the internal cavity is a convex curved edge surface (315) curved towards the inner wall of the transmission base which is the surface closest to the ejection axis (a) of the through hole. Some convex curved edge surfaces curved towards the inner wall of the transmission base and the through holes are symmetrically arranged around the inner wall of the transmission base. Adjacent to the inner wall (312) of the transmission base, there is an inverted conical vortex generation chamber (244). At the end of the vortex generation chamber (244), there is a bottom outlet (246) of the cyclone cone which is an outlet for the heavy-phase fluid having a cross-sectional area smaller than the total cross-sectional area of the inlets of all the through holes. On the opposite side of the vortex generation chamber (244), there is an upper cover (249) covering the fluid distribution chamber and the vortex generation chamber. On the upper cover of the cyclone, there is a vortex finder (245) which is a cylindrical tube with both open ends located at the center of the cone and functions as an outlet (248) for the light-phase fluid. A cyclone fluid separator having a device for generating a forced vortex with a laminar swirling flow utilizing the principle of the Coandă effect.

13. The separator according to claim 1 is connected to a subsequent separator such that the opening end of the subsequent vortex generation chamber is connected to the light-phase fluid outlet of the immediately preceding separator (CDSCS I) in order to increase the separation efficiency, so that multiple sets can be connected to each other. A fluid pump is used to inject fluid through an inlet (503) into a second separator (CDSCS II), accelerating the swirling speed to be higher than the swirling of the immediately preceding separator, accelerating the swirling fluid from the immediately preceding separator to a higher speed, generating a greater centrifugal force to increase the separation efficiency. The heavy-phase fluid separated from the second separator is removed from an outlet (536) into a second accumulation part (accumulation part II), and the fluid in the second accumulation part is continuously sent back to accelerate the swirling, the compact disc stack type cyclone separator according to claim 1.

Citation Information

Patent Citations

  • Dust collector

    JP1980005702A

  • Cyclone dust separating apparatus

    JP2006272322A

  • Device for creating a swirling flow of fluid

    JP2016509166A

  • Device for generating a swirling flow of fluid

    JP2017511446A

  • Multi-stage axial flow cyclone separator

    JP2018516167A