A compressed rotating coupling type gas-liquid cyclone separation device based on a porous overflow structure

Abstract

The application discloses a compressed and increased-rotation coupled gas-liquid cyclone separation device based on a porous overflow structure and belongs to the gas-liquid separation field. A main body shell comprises a first cylinder shell, a first conical shell, a second cylinder shell and a second conical shell from top to bottom, and a central pipe is fixedly arranged in the main body shell. A dynamic impeller, a static vane, a first spiral vane and an overflow hole are arranged on the central pipe from top to bottom. The dynamic impeller is driven to rotate by an external driving device, and the gas-liquid mixed flow is pre-pressurized and pre-cycloned. The static vane is fixed in a groove in the first cylinder shell and is used for stabilizing a flow field. Spiral flow guide ribs are arranged on the inner wall of the first conical shell to smoothly transition. The first spiral vane in the second cylinder shell further strengthens cyclone, the separated gas phase enters the central pipe through a circumferential porous overflow hole at the bottom of the central pipe and is discharged from the top, and the liquid phase is discharged from the bottom outlet. The application overcomes the problems of cyclone attenuation, unstable gas core and liquid entrainment at a high gas rate of a traditional cyclone, and improves the separation efficiency.

Description

Technical Field

[0001] This invention relates to gas-liquid separation, and more specifically to a compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure. Background Technology

[0002] Currently, common gas-liquid cyclone separators primarily use tangential inlets, static guide vanes, or helical flow structures to create a rotating flow field in the gas-liquid mixture, and then utilize centrifugal force to achieve gas-liquid separation. However, with increasing gas content, under high gas content conditions, traditional cyclone separators are prone to problems such as decreased cyclone intensity, reduced gas core stability, and gas-liquid remixing, thus affecting separation efficiency. Furthermore, traditional overflow structures are prone to short-circuit flow and recirculation phenomena in strong cyclone regions, leading to liquid entrainment during gas phase discharge. Simultaneously, when the fluid enters the cyclone region from the pressurization region, the lack of a stable transition flow structure easily leads to local backflow, abrupt flow field changes, and energy loss. Summary of the Invention

[0003] This invention provides a compression-coupling gas-liquid cyclone separator with a porous overflow pipe structure, overcoming the problems of insufficient cyclone intensity, poor gas core stability, overflow liquid entrainment, and unstable flow field transition in existing technologies. Through a rotating dynamic impeller structure, a flow guiding transition structure, and a porous overflow pipe structure, the gas-liquid mixture receives pre-pressurization and pre-cyclone effects before entering the cyclone separation region, while simultaneously forming stable gas cores within the cyclone separation region, achieving stable gas phase extraction and efficient liquid phase separation. To achieve the above objectives, the technical solution of this invention is as follows:

[0004] A compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure.

[0005] The compression-cyclone coupling gas-liquid cyclone separator includes a main body shell, which, from top to bottom, consists of a first cylindrical shell, a first conical shell, a second cylindrical shell, and a second conical shell.

[0006] The top side wall of the first cylindrical shell is provided with a gas-liquid mixing inlet connected to the internal cavity of the main shell, and the top of the first cylindrical shell is provided with an end cap.

[0007] A central tube is fixed inside the main body shell. The top of the central tube passes through the end cap and extends outward as the top outlet of the gas. The top of the central tube passes through the first cylindrical shell and the first conical shell in sequence and is located inside the second cylindrical shell. The central tube is provided with a dynamic impeller, a stationary guide vane, a first spiral guide vane, and an overflow hole in sequence from top to bottom.

[0008] Both the dynamic impeller and the stationary guide vane are located inside the outer shell of the first cylinder. The dynamic impeller is rotatably mounted on the central tube and connected to the external drive device. The external drive device drives the dynamic impeller to rotate on the central tube to actively do work on the incoming gas-liquid mixture, thereby increasing the energy level of the fluid and forming an initial swirling flow. The stationary guide vane consists of several streamlined blades circumferentially mounted on the outer wall of the central tube, which are used to stabilize the rotating flow field.

[0009] The inner wall of the first conical shell is provided with spiral guide ribs to guide the fluid to a smooth transition;

[0010] The first spiral guide vane and the overflow hole are both located inside the second cylindrical shell. The first spiral guide vane is fixedly installed on the central tube in a spiral manner. Several overflow holes are arranged circumferentially and penetrate the bottom side wall of the central tube.

[0011] The bottom of the second conical shell is provided with a liquid underflow outlet.

[0012] Furthermore, the dynamic impeller includes a hollow rotating shaft and a second helical guide vane and several inclined guide vanes disposed outside the hollow rotating shaft. The top of the hollow rotating shaft is sealed through the end cover and connected to an external drive device, and rotates around the central tube under the drive of the external drive device.

[0013] The second helical guide vane is mounted helically on the hollow rotating shaft.

[0014] The streamlined inclined guide vane is circumferentially mounted on the hollow rotating shaft. The inclined guide vane is located downstream of the second helical guide vane, and the direction of rotation of the inclined guide vane is the same as that of the second helical guide vane.

[0015] Furthermore, the first cylindrical shell has a groove structure inside for fixing the stationary guide vane, and the stationary guide vane is fixed relative to the central tube and the first cylindrical shell through the groove.

[0016] Furthermore, the streamlined stationary guide vane has the same rotation direction as the inclined guide vane of the dynamic impeller, and the guide angle of the streamlined vane is smaller than the blade angle of the inclined guide vane, which is used to stabilize the rotating flow field and allow the fluid to smoothly enter the first conical shell.

[0017] Furthermore, the first conical outer shell has a tapered structure that is wider at the top and narrower at the bottom, and the spiral guide ribs extend axially along the inner wall of the first conical outer shell;

[0018] The first cylindrical outer shell is a straight cylindrical shell with the same diameter as the top diameter of the first conical outer shell.

[0019] The second cylindrical shell is a straight cylindrical shell with the same diameter as the bottom diameter of the first conical shell, and the outer edge of the first spiral guide vane is sealed to the inner wall of the second cylindrical shell.

[0020] Furthermore, the end cap is connected and fixed to the top of the first cylindrical shell through a stud connection hole, and the central tube is coaxially fixed in the upper part of the main body shell and sealed with the end cap.

[0021] Furthermore, it also includes a support structure, which includes a fixing ring and a fixing base;

[0022] The retaining ring is placed around the outer shell of the main body;

[0023] The fixed base consists of multiple support legs that are circumferentially fixed to the fixed ring. The bottom of the support legs is provided with a base stabilizing plate, and the base stabilizing plate is provided with stud connection holes.

[0024] Furthermore, the retaining ring is fixedly fitted onto the outer diameter of the first conical shell or the second conical shell, and the retaining ring is provided with a conical hole that fits against the outer wall of the first conical shell or the second conical shell.

[0025] Furthermore, at least two gas-liquid mixing inlets are provided tangentially or symmetrically at the top of the first cylindrical shell for introducing the gas-liquid mixture into the main shell.

[0026] Furthermore, each overflow hole is an oblique hole that penetrates the bottom sidewall of the central tube, and the overflow hole slopes upward from the inside to the outside.

[0027] The advantages of this invention are:

[0028] 1) By actively pre-pressurizing and pre-swirling the gas-liquid mixture through a dynamic impeller, the fluid gains significant kinetic energy and initial swirling intensity before entering the separation zone. This effectively overcomes the energy loss caused by turbulence and flow resistance at the inlet of traditional hydrocyclones under high gas content conditions, and enhances the overall swirling stability and separation capability.

[0029] 2) The stationary guide vane adopts a streamlined blade with the same rotation direction as the dynamic impeller but a smaller guiding angle. It sorts and organizes the strong turbulent flow field after high-speed swirl, eliminates local disordered eddies, and allows the fluid to smoothly enter the subsequent region in a stable rotating state, reducing abrupt changes in the flow field and turbulent disturbances.

[0030] 3) The tapered structure of the first conical shell, combined with the axial spiral guide ribs on the inner wall, forces the fluid to flow along the spiral trajectory and adhere to the wall, effectively blocking the local backflow and flow separation phenomenon that is easy to occur when the cross-section contracts, and efficiently converting pressure energy into rotational kinetic energy (the spiral guide ribs guide the fluid circumferentially, so that the fluid maintains a rotational motion state during the radial contraction process and reduces the sudden change in the flow field), maintaining the rotational intensity under high gas content.

[0031] 4) Multiple overflow holes are arranged in a circumferential array in the stable region of the gas core, so that the gas phase is uniformly drawn into the internal channel of the central tube and discharged. This avoids the local shear flow caused by strong local suction in traditional single-point overflow ports, significantly reduces the probability of liquid phase being entrained into the overflow channel, effectively prevents short-circuit flow and circulating flow, and improves the purity of gas phase separation.

[0032] 5) The device is arranged in three functional areas from top to bottom: compression and swirl enhancement, transition flow guidance and swirl separation. The structures of each area work together to realize a continuous process from pre-pressurization and pre-swirl to smooth flow field transition and then to enhanced centrifugal separation, which improves the gas-liquid separation efficiency and operational stability under high gas content conditions. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a front view of a compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to the present invention.

[0035] Figure 2 This is a perspective view of the compression-cyclone coupling gas-liquid cyclone separation device of the present invention;

[0036] Figure 3 A three-dimensional view of the main body shell and its top end cap;

[0037] Figure 4 A front view of the main body shell and its top end cap;

[0038] Figure 5 This is the front view of the main body shell;

[0039] Figure 6 This is a sectional view of the internal structure of the main shell.

[0040] Figure 7 A schematic diagram of the first cylindrical outer shell at the top of the main outer shell;

[0041] Figure 8 A three-dimensional view of the first conical outer shell, which forms the main outer shell;

[0042] Figure 9 This is an internal sectional view of the first conical shell;

[0043] Figure 10 A three-dimensional view of the dynamic impeller, central tube and its auxiliary structures (stationary guide vane, first helical guide vane, overflow orifice);

[0044] Figure 11 for Figure 10 The main view;

[0045] Figure 12 A three-dimensional view of the central tube and its associated structures (stationary guide vane, first helical guide vane, overflow orifice);

[0046] Figure 13 for Figure 12 The main view;

[0047] Figure 14 Diagram of the inclined overflow hole array at the bottom of the central tube;

[0048] Figure 15 A 3D view of a dynamic impeller;

[0049] Figure 16 This is the main view of the dynamic impeller.

[0050] Explanation of reference numerals in the attached figures:

[0051] The main body shell 100, the first cylindrical shell 110, the gas-liquid mixing inlet 111, the groove structure 112, the first conical shell 120, the spiral guide rib 121, the second cylindrical shell 130, the second conical shell 140, the liquid underflow outlet 141, the end cap 150, the central tube 200, and the gas top outlet 210.

[0052] Dynamic impeller 220, hollow rotating shaft 221, second spiral guide vane 222, inclined guide vane 223;

[0053] Stationary guide vane 230, streamlined blade 231, first helical guide vane 240, overflow hole 250;

[0054] Support structure 300, fixing ring 310, fixing foot 320, support leg 321, base stabilizing plate 322, stud connection hole 323. Detailed Implementation

[0055] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0056] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0057] like Figures 1 to 16 As shown, the present invention provides a compression-swirl coupling gas-liquid cyclone separator based on a porous overflow structure. In terms of overall function, the device mainly consists of three major components: a compression-swirl coupling component located at the top (corresponding to the first cylindrical shell 110 of the main shell 100 and its internal structure), a transition guide component located in the middle (corresponding to the first conical shell 120 and its internal structure), and a cyclone separation component located at the bottom (corresponding to the second cylindrical shell 130, the second conical shell 140 and their internal structures).

[0058] Reference Figures 1 to 6 The compression-cyclone coupling gas-liquid cyclone separator includes a main shell 100, from which a first cylindrical shell 110, a first conical shell 120, a second cylindrical shell 130, and a second conical shell 140 are sequentially connected and interconnected from top to bottom. The first cylindrical shell 110 is a straight cylindrical shell with the same diameter as the larger diameter at the top of the first conical shell 120; the first conical shell 120 has a tapered structure, wider at the top and narrower at the bottom; the second cylindrical shell 130 is a straight cylindrical shell with the same diameter as the smaller diameter at the bottom of the first conical shell 120. At least two gas-liquid mixing inlets 111 (e.g., ...) are tangentially or symmetrically arranged on the top sidewall of the first cylindrical shell 110. Figure 3 , Figure 4 , Figure 7 As shown, it is used to efficiently introduce the gas-liquid mixture to be separated into the internal cavity of the main shell 100. An end cap 150 is fitted and fixed to the top of the first cylindrical shell 110 through a stud connection hole.

[0059] A central tube 200 is fixedly installed at the axial center position inside the main housing 100. The top of the central tube 200 coaxially passes through the end cap 150 and extends outward as the top gas outlet 210. The central tube 200 extends axially downward from the top, passing through the first cylindrical housing 110 and the first conical housing 120 in sequence, and extending into the internal region of the second cylindrical housing 130. The central tube 200 integrates, from top to bottom, a dynamic impeller 220, a stationary guide vane 230, a first helical guide vane 240, and an overflow hole 250.

[0060] The device also includes a support structure 300 for supporting and fixing (such as...). Figure 1 , Figure 2As shown, the support structure 300 includes a fixing ring 310 and a fixing foot 320. The fixing ring 310 is fixedly sleeved on the outer diameter of the first conical outer shell 120 or the second conical outer shell 140, and the inner side of the fixing ring 310 has a conical hole that fits tightly against the outer wall of the first conical outer shell 120 or the second conical outer shell 140. The fixing foot 320 is composed of a plurality of support legs 321 that are circumferentially and evenly fixed to the bottom of the fixing ring 310. The bottom of the support leg 321 is provided with a base stabilizing plate 322, and the base stabilizing plate 322 is provided with stud connection holes 323 for anchoring to the ground or base.

[0061] Reference Figure 3 , Figure 6 , Figure 7 , Figure 10 and Figure 11 Both the dynamic impeller 220 and the stationary guide vane 230 are located inside the cavity of the first cylindrical shell 110 (compression and swirl enhancement component).

[0062] like Figure 15-16 As shown, the dynamic impeller 220 includes a hollow rotating shaft 221, a second helical guide vane 222 disposed outside the hollow rotating shaft 221, and several inclined guide vanes 223. The hollow rotating shaft 221 is rotatably sleeved on the outer periphery of the central tube 200 and mechanically connected to an external drive device (such as a motor or magnetic drive assembly). The second helical guide vane 222 is helically fixed to the upper outer wall of the hollow rotating shaft 221; the streamlined inclined guide vanes 223 are evenly distributed circumferentially on the lower outer wall of the hollow rotating shaft 221, located downstream of the second helical guide vane 222. The rotation direction of the inclined guide vanes 223 is consistent with the rotation direction of the second helical guide vane 222.

[0063] When the high-gas-content gas-liquid mixture enters the first cylindrical shell 110 tangentially from the gas-liquid mixture inlet 111, the external drive device drives the hollow rotating shaft 221 to rotate the second helical guide vane 222 and the inclined guide vane 223 at high speed. The dynamic impeller 220 applies active mechanical work to the newly entered gas-liquid mixture, performing pre-pressurization and pre-swirling enhancement, so that the fluid obtains a significant increase in kinetic energy and initial swirling intensity, overcoming the energy loss caused by turbulence and flow resistance at the inlet of traditional hydrocyclones.

[0064] Downstream of the dynamic impeller 220, a groove structure 112 is provided on the inner wall of the first cylindrical shell 110 (e.g., Figure 7 (As shown). The stationary guide vane 230 is composed of several streamlined blades 231 circumferentially mounted on the outer wall of the central tube 200. The outer edge of the stationary guide vane 230 is inserted into and fixed in the groove structure 112 on the inner wall of the first cylindrical shell 110, thereby achieving relative fixation and stationarity between the stationary guide vane 230, the central tube 200, and the first cylindrical shell 110.

[0065] The streamlined blades 231 of the stationary guide vane 230 have the same rotation direction as the inclined guide vanes 223 of the dynamic impeller 220, but the guiding angle of the streamlined blades 231 is set to be smaller than the blade angle of the inclined guide vanes 223. When the highly rotating fluid, after being amplified by the high speed of the dynamic impeller 220, enters the stationary guide vane 230, the streamlined blades 231 can sort and organize the highly turbulent flow field, eliminate local disordered eddies, smoothly transition the rotating flow field, and avoid abrupt changes in the flow field when the fluid enters the subsequent region, so that the fluid enters the transition guide component in a stable rotating state.

[0066] Reference Figure 8 and Figure 9 The first conical outer shell 120 constitutes a transition guide component. The tapered inner wall of the first conical outer shell 120 is integrally formed or fixed with a spiral guide rib 121 extending spirally along the axial direction.

[0067] When fluid enters the lower, smaller-diameter swirling separation zone from the upper, larger-diameter pressurization zone, local backflow, flow separation, and severe turbulent energy loss are easily generated due to the cross-sectional contraction. In this embodiment, by setting axial spiral guide ribs 121 on the inner wall of the tapered first conical shell 120, the fluid can be forcibly constrained and guided to flow smoothly downward along the spiral trajectory, effectively blocking the flow separation and local backflow phenomena along the wall, reducing the degree of abrupt changes in the flow field, efficiently converting the pressure energy of the fluid into rotational kinetic energy, and maintaining the rotational intensity under high gas content conditions.

[0068] Reference Figure 6 , Figures 10 to 13 The first spiral guide vane 240 and the overflow hole 250 are both located inside the second cylindrical shell 130.

[0069] The first helical guide vane 240 is fixedly installed on the outer wall of the central tube 200 in a helical manner, and the outer edge of the first helical guide vane 240 is sealed to the inner wall of the second cylindrical shell 130. When the fluid, after being rectified by the transition guide component, enters the second cylindrical shell 130, the first helical guide vane 240 provides secondary forced helical guidance to the fluid, further enhancing the tangential velocity and swirling intensity of the fluid.

[0070] Under the influence of a strong centrifugal force field, the denser liquid phase is thrown towards the inner walls of the second cylindrical shell 130 and the second conical shell 140, forming a liquid ring that spirals downwards along the wall surface, eventually converging at the liquid underflow outlet 141 at the bottom of the second conical shell 140 and discharging outside the device. Conversely, the less dense gas phase, under the reverse action of centrifugal force, accumulates towards the axial region around the central tube 200, forming a stable low-pressure gas core region (under the action of the radial pressure gradient of the swirling flow field, the less dense gas phase migrates towards the axial low-pressure region and accumulates, forming a gas core).

[0071] To address the problem of liquid phase entrainment (short-circuit flow / liquid trapping) easily occurring with traditional overflow pipes, this embodiment features a plurality of overflow holes 250 circumferentially perforated on the bottom sidewall of the central tube 200 located in the gas core stability region. These overflow holes 250 are uniformly arranged in an array along the circumference and axial direction of the central tube 200. The separated gas phase is uniformly drawn into the central channel inside the central tube 200 through the circumferentially arranged overflow holes 250, flows upward along the axial direction of the central tube 200, and is finally smoothly discharged from the top gas outlet 210.

[0072] Furthermore, each overflow hole 250 is an oblique hole penetrating the bottom sidewall of the central tube 200, and the overflow hole 250 slopes upward from the inside to the outside, preferably with an inclination angle of 30°~45° (e.g., Figure 14 (As shown). In this invention, each overflow hole adopts an oblique hole design that penetrates the bottom sidewall of the central tube and slopes upward from the inside to the outside. Its beneficial effects are mainly reflected in the following aspects:

[0073] 1) Flow guidance and drag reduction: Since the overflow hole is inclined upward from the inside to the outside (i.e., inclined downward from the outside to the inside), its inclination angle is highly consistent with the vector trajectory of the gas phase converging on the outside of the central tube and flowing inward and upward. This reduces the drastic changes in flow pattern and local shear eddies caused by straight holes with the hole axis set radially, and reduces the local flow resistance and energy loss when the gas phase enters the central tube.

[0074] 2) Suppressing droplet entrainment and preventing short-circuit flow: Under the action of centrifugal force, the denser liquid phase flows downward along the wall. The inclined orifice on the outside of the inclined orifice, which slopes upward from the inside to the outside, makes it difficult for the liquid phase moving downward along the wall to directly enter the central tube along the orifice direction, increasing the flow resistance of the peripheral downward liquid phase directly intruding into the overflow orifice. At the same time, the inclined orifice can reduce the possibility of the liquid film directly entering the central tube under the suction action, greatly reducing the probability of the liquid phase being sucked into the central tube, effectively avoiding short-circuit flow and liquid entrainment.

[0075] 3) Reduce the possibility of droplets entering the central tube: If a small number of droplets still enter the inclined hole with the airflow under strong spiral flow, after the droplets enter the inclined hole, their movement direction is constrained by the inner wall of the inclined channel and affected by gravity and the interaction between the gas and liquid phases. This causes some droplets to migrate outward and downward along the inner wall of the inclined hole and gradually accumulate, thereby reducing the possibility of droplets directly entering the interior of the central tube with the airflow. This reduces liquid phase entrainment during the gas phase overflow process and is beneficial to improving the purity and operational stability of gas phase separation under high gas content conditions.

[0076] Because the overflow holes 250 are arranged in a circumferentially porous manner, local shear flow caused by strong adsorption at a single point is avoided, which greatly reduces the probability of liquid phase being entrained into the overflow channel and effectively prevents short-circuit flow and circulating flow, thereby significantly improving the purity of gas-liquid separation under high gas content conditions.

[0077] The working process of the present invention is as follows: the gas-liquid mixture flows through the gas-liquid mixture inlet 111 and enters the compression and swirl boosting component inside the first cylindrical shell 110.

[0078] Driven by an external drive unit, the dynamic impeller 220 rotates to pre-pressurize and pre-swirl the gas-liquid mixture, thereby increasing the pressure of the fluid and forming an initial swirling flow.

[0079] Subsequently, the fluid passes through the stationary guide vane 230, which has a small guiding angle, stabilizing the rotating flow field and allowing the fluid to smoothly enter the first conical shell 120. In the transition guide component, the tapered first conical shell 120 and the spiral guide rib 121 work together to reduce abrupt changes in the flow field, maintain the fluid's rotational state, and reduce energy loss, allowing the fluid to smoothly transition to the vortex separation component.

[0080] After entering the second cylindrical outer shell 130, the first spiral guide vane 240 further enhances the fluid rotation intensity. Under the action of centrifugal force, the denser liquid phase accumulates towards the container wall and moves downwards along the wall.

[0081] Finally, the liquid is discharged through the liquid underflow outlet 141; the less dense gas phase gathers towards the axis to form a stable gas core region. The gas phase enters the interior of the central tube 200 through the overflow hole 250 located in the stable gas core region, and then flows upward along the central tube 200 to the outside of the device through the gas top outlet 210. Because the overflow holes are located in the stable gas core region and are evenly distributed along the circumference, the probability of liquid phase entrainment into the overflow channel is effectively reduced.

[0082] Compared with the prior art, the present invention has the following beneficial effects: By using a dynamic impeller pressurization structure, the gas-liquid mixture is pre-pressurized and swirled, enhancing the fluid swirling and swirling stability, thereby improving the gas-liquid separation capability under high gas content conditions; by using stationary guide vanes and guide ribs to stabilize the flow field, abrupt changes in the flow field and turbulent disturbances can be reduced, resulting in a more stable gas core structure in the axial region; by placing the overflow hole in the stable gas core region, the probability of liquid phase entrainment into the overflow channel can be effectively reduced, improving the gas phase separation effect; by using a tapered transition section and a spiral guide rib structure, flow separation and local backflow phenomena can be reduced, allowing the fluid to enter the swirling separation region more smoothly.

[0083] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure, characterized in that, The compression-cyclone coupling gas-liquid cyclone separator includes a main body shell, which, from top to bottom, consists of a first cylindrical shell, a first conical shell, a second cylindrical shell, and a second conical shell. The top side wall of the first cylindrical shell is provided with a gas-liquid mixing inlet connected to the internal cavity of the main shell, and the top of the first cylindrical shell is provided with an end cap. A central tube is fixed inside the main body shell. The top of the central tube passes through the end cap and extends outward as the top outlet of the gas. The top of the central tube passes through the first cylindrical shell and the first conical shell in sequence and is located inside the second cylindrical shell. The central tube is provided with a dynamic impeller, a stationary guide vane, a first spiral guide vane, and an overflow hole in sequence from top to bottom. Both the dynamic impeller and the stationary guide vane are located inside the outer shell of the first cylinder. The dynamic impeller is rotatably mounted on the central tube and connected to the external drive device. The external drive device drives the dynamic impeller to rotate on the central tube to actively do work on the incoming gas-liquid mixture, thereby increasing the energy level of the fluid and forming an initial swirling flow. The stationary guide vane consists of several streamlined blades circumferentially mounted on the outer wall of the central tube, which are used to stabilize the rotating flow field. The inner wall of the first conical shell is provided with spiral guide ribs to guide the fluid to a smooth transition; The first spiral guide vane and the overflow hole are both located inside the second cylindrical shell. The first spiral guide vane is fixedly installed on the central tube in a spiral manner. Several overflow holes are arranged circumferentially and penetrate the bottom side wall of the central tube. The bottom of the second conical shell is provided with a liquid underflow outlet.

2. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, The dynamic impeller includes a hollow rotating shaft and a second helical guide vane and several inclined guide vanes located outside the hollow rotating shaft. The hollow rotating shaft is sleeved on the outer periphery of the central tube, and the top of the hollow rotating shaft is sealed through the end cover and connected to an external drive device. The second helical guide vane is mounted helically on the hollow rotating shaft. The streamlined inclined guide vane is circumferentially mounted on the hollow rotating shaft. The inclined guide vane is located downstream of the second helical guide vane, and the direction of rotation of the inclined guide vane is the same as that of the second helical guide vane.

3. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, The first cylindrical shell has a groove structure inside for fixing the stationary guide vane. The stationary guide vane is fixed relative to the central tube and the first cylindrical shell through the groove.

4. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 2, characterized in that, The streamlined stationary guide vane has the same rotation direction as the inclined guide vane of the dynamic impeller. The guide angle of the streamlined vane is smaller than that of the inclined guide vane, which is used to stabilize the rotating flow field and allow the fluid to smoothly enter the first conical shell.

5. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, The first conical outer shell has a tapered structure that is wider at the top and narrower at the bottom, and the spiral guide ribs extend axially along the inner wall of the first conical outer shell; The first cylindrical outer shell is a straight cylindrical shell with the same diameter as the top diameter of the first conical outer shell. The second cylindrical shell is a straight cylindrical shell with the same diameter as the bottom diameter of the first conical shell, and the outer edge of the first spiral guide vane is sealed to the inner wall of the second cylindrical shell.

6. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, The end cap is connected and fixed to the top of the first cylindrical shell through a stud connection hole, and the central tube is coaxially fixed in the upper part of the main shell and sealed with the end cap.

7. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, It also includes a support structure, which includes a fixing ring and a fixing base; The retaining ring is placed around the outer shell of the main body; The fixed base consists of multiple support legs that are circumferentially fixed to the fixed ring. The bottom of the support legs is provided with a base stabilizing plate, and the base stabilizing plate is provided with stud connection holes.

8. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 7, characterized in that, The retaining ring is fixedly fitted onto the outer diameter of the first conical shell or the second conical shell, and the retaining ring has a conical hole that fits against the outer wall of the first conical shell or the second conical shell.

9. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, The top of the first cylindrical shell is provided with at least two gas-liquid mixing inlets tangentially or symmetrically for introducing the gas-liquid mixing flow into the main shell.

10. The compression-cyclone coupling gas-liquid cyclone separator based on a porous overflow structure according to claim 1, characterized in that, Each overflow hole is an oblique hole that penetrates the bottom sidewall of the central tube, and the overflow holes slope upward from the inside to the outside.

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