Conical double-spiral-channel cyclone separation structure and application

Abstract

The invention belongs to the technical field of gas-liquid separation, and discloses a conical double-spiral-channel cyclone separation structure and application, the conical double-spiral-channel cyclone separation structure comprises a separator cylinder, a conical separation device, a medium tangential inlet, a transition guide device, a gas outlet and a liquid outlet; the conical separation device is arranged in the separator cylinder and is of an inner and outer double-spiral structure; a medium tangential inlet is formed in the upper part of the separator barrel and is communicated with the conical separation device; a transition guide device is arranged at the lower part of the conical separation device and is used for medium transition from outside to inside of the conical separation device; and the top and the bottom of the separator cylinder are respectively provided with a gas outlet and a liquid outlet. According to the invention, a conical inner and outer double-spiral body is designed, so that a medium advances along a set spiral track after entering the separation device, and the arrangement of the double-spiral body realizes twice gas-liquid spiral separation under the condition that the equipment size is not changed.

Description

Technical Field

[0001] This invention belongs to the field of gas-liquid separation technology, and specifically relates to a conical double-spiral cyclone separation structure and its application. Background Technology

[0002] Associated gas in oil fields refers to the gas that appears alongside petroleum liquids between oil layers during the oil extraction process. Its main component is methane, and it typically contains large amounts of ethane and hydrocarbons. Associated gas is a usable energy source; after recovery, it can be processed into pure components or natural gas mixtures for sale, or used as fuel for heating furnaces in oil and gas production plants. However, associated gas extracted from formations generally contains oil and water, requiring gas-liquid separation equipment to separate the gas and liquid components to meet usage requirements.

[0003] Gas-liquid separation technologies include gravity separation, inertial separation, centrifugal separation, filtration separation, and distillation separation. Common separation elements mainly include mist-catching wire mesh, baffles, spiral channels, filter elements, and heating and condensing devices.

[0004] Centrifugal gas-liquid separation mainly refers to gas-liquid cyclone separation, which uses centrifugal force to separate liquid droplets in the gas stream. Because centrifugal force can reach tens or even more times that of gravity, it has a higher gas-liquid separation efficiency than gravity separation. It also features short residence time, small equipment size and footprint, easy installation, stable and continuous operation, no easily damaged parts, and convenient maintenance. Therefore, centrifugal gas-liquid separation structures are widely used. However, the structural form of the centrifugal separation element has a significant impact on the separation effect. Conventional cyclone separation elements, such as those in patent application CN202221414901 (an industrial steam quality improvement device), are used to improve steam quality. Their partial structure is similar in appearance to the spiral of this invention, but they only have one spiral. While their structural design is simple, they suffer from problems such as unsatisfactory gas-liquid separation effect and pressure loss of the fluid medium within the structure. Summary of the Invention

[0005] The purpose of this invention is to provide a conical double-spiral cyclone separation structure and its application, so as to solve the problem of poor separation effect of existing cyclone gas-liquid separation structures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A conical double-helix cyclone separator structure includes a separator cylinder, a conical separation device, a tangential medium inlet, a transition guide device, an air outlet, and a liquid outlet. The conical separation device is disposed inside the separator cylinder and has an inner and outer double helix structure. A tangential medium inlet is provided at the upper part of the separator cylinder, and the tangential medium inlet is connected to the conical separation device. A transition guide device is provided at the lower part of the conical separation device for the transition of the medium from the outside to the inside of the conical separation device. An air outlet and a liquid outlet are respectively provided at the top and bottom of the separator cylinder.

[0007] Furthermore, the conical separation device includes an outer spiral body, a conical cylinder, a central tube, and an inner spiral body. The conical cylinder is located inside the separator cylinder, the central tube is located inside the conical cylinder, the outer spiral body is located between the separator cylinder and the conical cylinder and is welded and fixed to the outer wall of the conical cylinder, and the inner spiral body is located between the conical cylinder and the central tube and is welded and fixed to the outer wall of the central tube.

[0008] Furthermore, gaps are left between the inner spiral and the inner wall of the conical cylinder, and between the outer spiral and the inner wall of the separator cylinder.

[0009] Furthermore, an annular baffle is provided on the upper part of the inner side of the separator cylinder. The outer ring of the annular baffle is welded and fixed to the inner wall of the separator cylinder, and the inner ring of the annular baffle is welded to the upper part of the central tube through ribs.

[0010] Furthermore, the tangential inlet of the medium, the conical cylinder, and the outer spiral are all located below the annular baffle; the inlet of the outer spiral is connected to the tangential outlet of the medium.

[0011] Furthermore, the transition guide device includes a slit, in which the cavity at the lowest end of the outer spiral body is connected to the cavity at the lowest end of the inner spiral body, and the slit is semi-conical in shape.

[0012] Furthermore, the transition guide device also includes a transition connecting plate, which welds the lower end face of the inner spiral body and the lower end face of the outer spiral body together. The transition connecting plate is an eccentric semi-circular ring plate.

[0013] Furthermore, the transition guide device also includes a cut baffle, which is welded to the outside of the cut. The cut baffle is an arc-shaped plate, with its side edge welded to the side of the cut, its top edge welded to the lower surface of the last turn of the outer spiral, and its bottom edge welded to the transition connecting plate. The transition connecting plate, the cut baffle, and the lower surface of the outer spiral together form an eccentric annular cavity.

[0014] Furthermore, the separator body includes a separator cylindrical body, a top end cap, and a bottom end cap. The top end cap is provided with an air outlet, and the bottom end cap is provided with a liquid drain outlet.

[0015] An application of a conical double-screw cyclone separation structure for gas-liquid separation of fluid media.

[0016] Compared with the prior art, the present invention has the following technical effects: This invention designs a conical inner and outer double helix, which allows the medium to move along a set spiral trajectory after entering the separation device. The double helix design enables two gas-liquid spiral separations without changing the size of the equipment. The conical cylinder separates the cavities of the inner and outer spirals. Because the outer spiral is conical, the space of the outer spiral channel gradually decreases from top to bottom. According to the fluid motion continuity equation and Bernoulli's equation for the conservation of mechanical energy, the fluid speed on the outer spiral channel increases, the centrifugal force increases, and the gas-liquid two-phase separation effect is better. The inner spiral of this invention is also conical, so the space of the inner spiral channel gradually decreases from bottom to top. According to the fluid motion continuity equation and the Bernoulli equation for the conservation of mechanical energy, the fluid speed on the inner spiral channel also gradually increases, the centrifugal force increases, and the gas-liquid two-phase separation effect is better. The present invention provides an opening at the junction of the inner and outer spirals at the lower end of the conical cylinder, ensuring that the inner and outer spirals are connected at the opening. The airflow enters the inner spiral space from the outer spiral space through the opening, without having to turn back from the bottom of the container as in conventional spiral separation structures, thus eliminating the rapid energy loss caused by sudden changes in the velocity direction of the fluid. In this invention, a transition connecting plate and a cut baffle are provided in the area near the cut of the conical cylinder. Because the transition connecting plate, the cut baffle and the interface between the inner and outer spirals are all tangentially arranged, the fluid medium in the outer spiral space can smoothly and naturally enter the inner spiral space, further reducing energy loss.

[0017] In summary, the double-helix design ensures two gas-liquid separations without changing the equipment size, significantly improving separation efficiency. Therefore, for the same throughput and to achieve the same treatment effect, the separation structure of this invention can greatly reduce the overall size of the gas-liquid separation equipment and lower construction costs. Simultaneously, the conical cylinder and the inner and outer helices increase the medium's velocity during its advance, resulting in better centrifugal separation. Furthermore, the conical cylinder cutout, cutout baffle, and transition connecting plate ensure that the medium in the outer helical space can smoothly and naturally enter the inner helical space, reducing momentum loss. This type of separation structure design provides a new method and approach for oil and gas field separation equipment and even for separating media of different densities in related industries. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the conical double-spiral gas-liquid separator of the present invention.

[0019] Figure 2 yes Figure 1 Sectional view of AA.

[0020] Figure 3 yes Figure 1 BB section view.

[0021] Figure 4 This is a front view of the conical cylinder and its cut.

[0022] Figure 5It is a top view of the conical cylinder and its cut.

[0023] Figure 6 This is the front view of the cut-out baffle.

[0024] Figure 7 This is a top view of the cut-out baffle.

[0025] Figure 8 This is a schematic diagram of the transition connection plate structure.

[0026] in: 1. Separator cylinder, 2. Outer spiral, 3. Conical cylinder, 4. Inner spiral, 5. Central tube, 6. Medium tangential inlet, 7. Air outlet, 8. Rib, 9. Annular baffle, 10. Cut baffle, 11. Transition connecting plate, 12. Drain outlet, 13. Cut. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1, please refer to Figure 1A conical double-helix cyclone separator structure includes a separator cylinder 1, a conical separation device, a medium tangential inlet 6, a transition guide device, an air outlet 7, and a liquid outlet 12. The conical separation device is located inside the separator cylinder 1 and has an inner and outer double helix structure. The upper part of the separator cylinder 1 is provided with a medium tangential inlet 6, which is connected to the conical separation device. The lower part of the conical separation device is provided with a transition guide device for the medium transition from the outside to the inside of the conical separation device. The top and bottom of the separator cylinder 1 are respectively provided with an air outlet 7 and a liquid outlet 12.

[0031] Separator cylinder 1: As the main body of the entire separation structure, separator cylinder 1 provides a closed environment for the cyclone separation of the medium. It is provided with an air outlet 7 and a liquid outlet 12 at the top and bottom, respectively, so that the separated gas and liquid phases can be discharged separately.

[0032] Conical Separator: Located inside separator cylinder 1, this is the core component of the separation structure. The conical separator employs an inner and outer double-helix structure, achieving highly efficient gas-liquid separation through ingenious design. The outer helix is ​​located between the separator cylinder and the conical cylinder, while the inner helix is ​​located between the conical cylinder and the central tube (if applicable). This structure continuously increases the velocity of the medium as it moves forward, resulting in superior centrifugal separation.

[0033] Tangential inlet 6: Located at the top of the separator cylinder 1, it is used to introduce the medium to be separated. After entering the separator through the tangential inlet 6, the medium moves in a spiral motion along the spiral channel space of the conical separation device, thereby achieving gas-liquid separation.

[0034] Transition guiding device: Located at the bottom of the conical separation device, it is used to achieve a smooth transition of the medium from the outer spiral to the inner spiral. The transition guiding device typically includes components such as a notch, a notch baffle, and a transition connecting plate. Together, they ensure that the medium in the outer spiral space can smoothly and naturally enter the inner spiral space, reducing the momentum loss of the medium.

[0035] Working principle When the medium enters the separator through the tangential inlet 6, it first undergoes a spiral motion along the spiral channel of the outer spiral body. Due to the design of the conical cylinder and the arrangement of the inner and outer spiral bodies, the medium's velocity continuously increases during its advance, and the centrifugal force also increases accordingly. This causes the gas and liquid phases to gradually separate under the action of centrifugal force.

[0036] Due to its higher density, the liquid phase is thrown against the cylinder wall by centrifugal force and slides down the wall, eventually being discharged through the drain port 12. The gas phase, due to its lower density, moves downwards along the conical outer spiral space under centrifugal force. When the gas phase reaches the end of the outer spiral, it is smoothly guided into the inner spiral space by components such as the transition guide device's cut, cut baffle, and transition connecting plate.

[0037] Within the inner spiral, the gas phase continues its spiral flow, undergoing secondary gas-liquid separation. Finally, the separated gas exits from the top of the inner spiral channel and flows out of the separator through outlet 7. The remaining liquid continues to slide down the inner wall of the conical cylinder to the bottom and is discharged through drain port 12.

[0038] The separation structure of this invention can significantly reduce the overall size of the gas-liquid separation equipment and lower construction costs. Simultaneously, the conical cylinder and the inner and outer spirals increase the velocity of the medium as it moves forward, resulting in better centrifugal separation. Furthermore, the conical cylinder cutout, cutout baffle, and transition connecting plate ensure that the medium in the outer spiral space can smoothly and naturally enter the inner spiral space, reducing momentum loss. The conical cylinder separates the cavities of the inner and outer spirals. Because the outer spiral is conical, the space in the outer spiral channel gradually decreases from top to bottom. According to the fluid motion continuity equation and Bernoulli's equation for the conservation of mechanical energy, the fluid velocity in the outer spiral channel increases, the centrifugal force increases, and the gas-liquid two-phase separation effect is better.

[0039] Example 2, please refer to Figures 1 to 8 This invention relates to a conical double-spiral gas-liquid separation structure, comprising a separator cylinder 1, an outer spiral 2, a conical cylinder 3, an inner spiral 4, a central tube 5, an annular baffle 9, ribs 8, a transition connecting plate 11, a cut baffle 10, a tangential medium inlet 6, an air outlet 7, and a liquid outlet 12. The separator cylinder 1 mainly includes a cylindrical separator body, a top end cap, and a bottom end cap. The top end cap has an air outlet 7, and the bottom end cap has a liquid outlet 12. The upper middle part of the separator cylinder 1 has a tangential medium inlet 6.

[0040] See Figure 1 , Figure 3 The medium tangential inlet 6 is located in the upper part of the separator cylinder, below the annular baffle 9, and enters tangentially along the inner wall of the separator cylinder, communicating with the top inlet of the outer spiral 2.

[0041] See Figure 1 , Figure 2An annular baffle 9 is installed in the upper part of the separator cylinder 1. The outer ring of the annular baffle 9 is welded and fixed to the inner wall of the separator, and the inner ring of the annular baffle 9 is welded to the upper part of the central tube 5 through eight ribs 8. Below the annular baffle 9, a conical cylinder 3 is installed, and the small end of the conical cylinder 3 is welded and fixed to the lower surface of the annular baffle 9. The outer diameter of the annular baffle 9 is 3-5 mm smaller than the inner diameter of the separator cylinder, and the inner diameter of the annular baffle is 3-5 mm larger than the small end diameter of the conical cylinder.

[0042] See Figure 1 The outer spiral 2 is located below the annular baffle 9, between the separator cylinder 1 and the conical cylinder 3, and is welded and fixed to the outer wall of the conical cylinder 3. The outer diameter of the outer spiral 2 is 8-20mm smaller than the inner diameter of the separator cylinder, ensuring that there is a gap between the outer spiral 2 and the inner wall of the separator cylinder 1, so that the liquid separated by centrifugation in one step slides down from the inner wall of the separator cylinder. The upper end of the outer spiral 2 is located below the tangential inlet 6 of the medium, 150-200mm away from the annular baffle, and the inlet of the outer spiral 2 is connected to the tangential outlet of the medium.

[0043] See Figure 1 The inner spiral 4 is located between the conical cylinder 3 and the central tube 5 and is welded and fixed to the outer wall of the central tube. A gap of 4-10mm is left between the inner spiral and the inner wall of the conical cylinder, so that the liquid separated by secondary centrifugation slides down from the inner wall of the conical cylinder.

[0044] See Figure 1 , Figure 4 , Figure 5 A slit is provided at the lower end of the conical cylinder 3. Its position and size should ensure that the cavity at the lowest point of the outer spiral and the cavity at the lowest point of the inner spiral can communicate at the slit, allowing airflow to enter the inner spiral space through the slit. The slit is semi-conical; its projection abcd in the front view is a trapezoid, and its projection abcd in the top view is a semi-circular ring. Point a is the outer endpoint of the inner spiral's end face, and point d is the inner endpoint of the outer spiral's end face. The lower surface ad of the slit is on the same horizontal plane; the upper surface bc of the slit is below the last turn of the inner spiral and also below the last turn of the outer spiral, and bc is on the same horizontal plane.

[0045] See Figure 1 , Figure 8The installation position and angle of the inner and outer spirals should ensure that the lower end faces of the inner and outer spirals are on the same vertical plane and at equal heights from the bottom of the conical cylinder, with a height of 50-100mm. After the inner and outer spirals are installed according to the above requirements, the lower end faces of the inner and outer spirals are welded together using a transition connecting plate 11. The transition connecting plate 11 is an eccentric semi-circular ring plate ijmn, where point i is the outer endpoint of the inner spiral's end face, point j is the inner endpoint of the inner spiral's end face, point m is the inner endpoint of the outer spiral's end face, and point n is the outer endpoint of the outer spiral's end face. In is tangent to the outer arcs of both the inner and outer spirals, and jm is tangent to the inner arcs of both the inner and outer spirals.

[0046] See Figure 1 , Figure 6 , Figure 7 A cutting baffle 10 is welded to the outside of the cut on the conical cylinder 3. The ef edge of the cutting baffle 10 is welded to the ab edge of the cut on the conical cylinder, the fg edge of the cutting baffle is welded to the lower surface of the last turn of the outer spiral, and the eh edge of the cutting baffle is welded to the in edge of the transition connecting plate. The function of the cutting baffle is to guide the gas to flow smoothly and naturally into the inner spiral space after it flows out of the outer spiral space.

[0047] In the area near the cut, the transition connecting plate 11, the cut baffle 10 and the lower surface of the outer spiral body 2 together form an eccentric annular cavity. Because the interface between the transition connecting plate, the cut baffle and the inner and outer spiral bodies is tangent, it ensures that the fluid medium in the outer spiral body space can smoothly and naturally enter the inner spiral body space along the cavity.

[0048] In this invention, the number of turns of the inner and outer spirals should preferably be 5-15, which can be adjusted appropriately according to the size requirements of the separator; the taper of the conical cylinder should preferably be 30-60 degrees; the determination of parameters such as the inner diameter of the separator cylinder, the taper of the conical cylinder, the diameter of the large and small ends, and the diameter of the central tube are mutually constrained, and should ensure that the cross-sectional area of ​​the cavity at the outlet of the outer spiral is greater than or equal to the cross-sectional area of ​​the cavity at the inlet of the inner spiral, so that the fluid medium still increases its speed when it enters the inner spiral from the outer spiral.

[0049] Using the conical double-spiral gas-liquid separation structure shown in the attached diagram, the gas-liquid separation process is as follows: After the medium enters the separator through the tangential inlet 6, it spirals downwards along the spiral space formed by the outer spiral body 2, the conical cylinder 3, and the separator cylinder 1. Due to the density difference between gas and liquid, the liquid phase is separated to the cylinder wall under the action of centrifugal force and slides down along the inner wall of the separator cylinder under the action of gravity; the gas phase moves downwards along the conical outer spiral space. After reaching the end of the outer spiral body, the outer spiral airflow smoothly and naturally enters the inner spiral space through the cavity formed by the transition connecting plate 11, the cut baffle 10, and the lower surface of the outer spiral body. The gas medium continues to flow spirally along the set track, forming an inner spiral airflow for secondary gas-liquid separation. The gas is discharged from the top of the inner spiral channel, enters the top of the separator through the channel between the ribs and the annular baffle, and flows out from the outlet. The liquid slides down along the inner wall of the conical cylinder to the bottom of the separator and is finally discharged from the drain port.

[0050] Separator body 1: includes a cylindrical body, a top end cap, and a bottom end cap. The top end cap is provided with an air outlet 7, the bottom end cap is provided with a liquid drain outlet 12, and the middle and upper part is provided with a medium tangential inlet 6.

[0051] Outer spiral 2: Located below the annular baffle 9, between the separator cylinder 1 and the conical cylinder 3, and welded and fixed to the outer wall of the conical cylinder 3.

[0052] Conical cylinder 3: Located below the annular baffle 9, with its small end annular surface welded and fixed to the lower surface of the annular baffle 9, and a notch at the lower end.

[0053] Inner spiral 4: Located between the conical cylinder 3 and the central tube 5, and welded to the outer wall of the central tube.

[0054] Central tube 5: Located at the center of the structure, its upper part is welded to the inner ring of the annular baffle 9 via ribs 8.

[0055] Annular baffle 9: It is set in the upper part of the separator cylinder 1. The outer ring is welded and fixed to the inner wall of the separator, and the inner ring is welded to the upper part of the central tube 5 through the ribs 8.

[0056] Rib 8: A structural component connecting the inner ring of the annular baffle 9 to the upper part of the central tube 5.

[0057] Transition connecting plate 11: used to weld the lower end face of the inner spiral body to the lower end face of the outer spiral body into one piece.

[0058] Cutting baffle 10: welded to the outside of the cut of the conical cylinder, used to guide gas smoothly from the outer spiral space into the inner spiral space.

[0059] Medium tangential inlet 6: Located in the upper middle part of the separator cylinder, it is used for tangential entry of the medium.

[0060] Outlet 7: Located on the top end cap of the separator cylinder, used to discharge gas.

[0061] Drain port 12: Located on the bottom end cap of the separator cylinder, used to drain liquid.

[0062] After the medium enters the separator tangentially through the medium inlet 6, it spirals downwards along the spiral space formed by the outer spiral body 2, the conical cylinder 3, and the separator cylinder 1. Due to the density difference between gas and liquid, the liquid phase is separated to the cylinder wall under the action of centrifugal force and slides down the inner wall of the separator cylinder under the action of gravity. The gas phase moves downwards along the conical outer spiral space, and after reaching the end of the outer spiral body, it smoothly enters the inner spiral space through the cavity formed by the transition connecting plate 11, the cut baffle 10, and the lower surface of the outer spiral body, forming an inner spiral airflow for secondary gas-liquid separation. The gas is discharged from the top of the inner spiral channel, enters the top of the separator through the channel between the ribs and the annular baffle, and flows out from the gas outlet; the liquid slides down the inner wall of the conical cylinder to the bottom of the separator and is finally discharged from the liquid outlet.

[0063] High-efficiency separation: Through the conical double-screw design, the medium undergoes two centrifugal separations within the screw space, improving the gas-liquid separation efficiency.

[0064] Compact structure: The compact design of components such as the inner and outer spiral bodies and the conical cylinder makes the entire separation structure small in size and occupy a small area.

[0065] Stable operation: The installation position and angle of the inner and outer spirals are carefully designed to ensure that the fluid medium flows smoothly in the spiral space, reducing eddies and turbulence and improving operational stability.

[0066] Easy to maintain: The connections between the components of the separate structure are firm and reliable, and the design facilitates disassembly and cleaning, reducing maintenance difficulty and cost.

[0067] Highly adaptable: Parameters such as the number of turns of the inner and outer spirals and the taper of the conical cylinder can be appropriately adjusted according to the size requirements of the separator to meet different gas-liquid separation needs.

[0068] Figure 1 A schematic diagram of the conical double-spiral gas-liquid separation structure, showing the relative positions and connection methods of the components.

[0069] Figures 2 to 8 The detailed structure and installation position of components such as the annular baffle 9, the outer spiral 2, the conical cylinder 3, the inner spiral 4, the transition connecting plate 11, and the slit baffle 10 are shown respectively.

[0070] The accompanying drawings provide a clear understanding of the specific structure and working principle of the conical double-spiral gas-liquid separation structure, further verifying the feasibility and effectiveness of the technical solution.

[0071] Example 3 This technical solution introduces a conical double-spiral gas-liquid separation structure, which achieves efficient gas-liquid separation through ingenious design. The separation structure includes several key components, such as a separator cylinder, an outer spiral, a conical cylinder, an inner spiral, a central tube, etc., as well as annular baffles, ribs, transition connecting plates, and slit baffles for guiding and fixing these components.

[0072] Separator cylinder: As the main body of the entire separation structure, it has an air outlet at the top and a liquid drain at the bottom. The tangential medium inlet is located in the upper middle part and is used to introduce the medium to be separated.

[0073] Annular baffle and ribs: The annular baffle is welded to the inner wall of the separator and connected to the central tube through ribs, providing support and positioning for the outer spiral and conical cylinder.

[0074] Conical cylinder: Located below the annular baffle, its small end is welded to the lower surface of the annular baffle. The conical design helps to enhance centrifugal force and improve separation efficiency.

[0075] Outer and inner spiral bodies: The outer spiral body is positioned between the separator cylinder and the conical cylinder, while the inner spiral body is positioned between the conical cylinder and the central tube. Both are fixed by welding, with appropriate gaps to allow liquid to slide off and gas to flow.

[0076] Cutout and cutout baffle: A cutout is provided at the lower end of the conical cylinder to connect the outer and inner spirals. A cutout baffle is welded to the outside of the cutout to guide the gas smoothly into the inner spiral space.

[0077] Transition connecting plate: Welds the lower end face of the inner spiral body to the lower end face of the outer spiral body into one piece, ensuring that the installation position and angle of the inner and outer spiral bodies meet the requirements.

[0078] Working process: After the medium enters the separator tangentially, it spirals downwards along the spiral space formed by the outer spiral, the conical cylinder, and the separator cylinder. The liquid phase slides down the cylinder wall under the influence of centrifugal force and gravity; the gas phase moves downwards along the conical outer spiral space, and after reaching the end of the outer spiral, it enters the inner spiral space through the cavity formed by the transition connecting plate, the cut baffle, and the lower surface of the outer spiral. In the inner spiral, the gas continues to flow spirally, undergoing secondary gas-liquid separation. Finally, the gas exits from the top of the inner spiral channel and flows out of the gas outlet, while the liquid slides down the inner wall of the conical cylinder to the bottom and exits through the liquid outlet.

[0079] This separation structure achieves highly efficient gas-liquid separation through a dual-helix design. The arrangement of the outer and inner helical sections increases the movement path and centrifugal force of the medium, thereby improving separation efficiency. Simultaneously, the design of the slits and slit baffles ensures a smooth transition of gas from the outer to the inner helix, reducing flow resistance. Furthermore, this structure offers advantages such as simple construction, ease of manufacturing, and maintenance.

[0080] This technical solution introduces a conical double-spiral gas-liquid separation structure, which achieves highly efficient gas-liquid separation through ingenious design and reasonable component configuration. This structure has advantages such as simple structure, high separation efficiency, and ease of manufacturing and maintenance, and can be widely used in various applications requiring gas-liquid separation.

[0081] This embodiment introduces a conical double-spiral gas-liquid separation structure, which mainly consists of a separator cylinder, an outer spiral, a conical cylinder, an inner spiral, a central tube, and key components such as annular baffles, ribs, transition connecting plates, and slit baffles. These components, through ingenious design and reasonable configuration, collectively achieve highly efficient gas-liquid separation.

[0082] Key components and their functions Separator cylinder: As the main body of the entire separation structure, it has an air outlet at the top and a liquid outlet at the bottom. The tangential medium inlet is located in the upper middle part and is used to introduce the medium to be separated. The cylinder provides sufficient space for the medium to undergo spiral motion, thus achieving the final separation of gas and liquid.

[0083] Annular baffles and ribs: The annular baffles are welded to the inner wall of the separator and connected to the central tube via ribs. Their main function is to provide support and positioning for the outer spiral and conical cylinder, ensuring the stability of these components during the separation process.

[0084] Conical cylinder: Located below the annular baffle, its small end is welded to the lower surface of the annular baffle. The conical design enhances centrifugal force, making it easier for the liquid phase to separate to the cylinder wall and slide down it. Simultaneously, the conical cylinder also guides the airflow.

[0085] The outer and inner spiral bodies: The outer spiral body is positioned between the separator cylinder and the conical cylinder, while the inner spiral body is positioned between the conical cylinder and the central tube. Both are fixed by welding, with appropriate gaps to allow liquid to slide off and gas to flow. The spiral design increases the movement path and centrifugal force of the medium, thereby improving separation efficiency.

[0086] Cutout and Cutout Baffle: A cutout is provided at the lower end of the conical cylinder, connecting the outer and inner spirals at the cutout. A cutout baffle is welded to the outside of the cutout, guiding the gas smoothly into the inner spiral space. This design ensures a smooth transition of gas from the outer to the inner spiral, reducing flow resistance.

[0087] Transition connecting plate: This plate welds the lower end face of the inner spiral to the lower end face of the outer spiral together, ensuring that the installation position and angle of the inner and outer spirals meet the requirements. The presence of the transition connecting plate makes the connection between the inner and outer spirals more secure, improving the stability of the entire separation structure.

[0088] High-efficiency separation: Through the dual-helix design and the enhanced centrifugal force of the conical cylinder, this separation structure achieves highly efficient gas-liquid separation. The liquid phase is rapidly separated and slides to the bottom, while the gas phase undergoes secondary separation in the inner helix before being discharged.

[0089] Smooth transition: The design of the cut and cut baffle ensures a smooth transition of gas from the outer spiral to the inner spiral, reducing flow resistance and improving separation efficiency.

[0090] Simple structure: This separate structure consists of several key components, but the overall structure is relatively simple, easy to manufacture and maintain. This reduces production costs and ease of use.

[0091] Wide range of applications: Due to its advantages such as high efficiency separation and simple structure, this conical double-screw gas-liquid separation structure can be widely used in various occasions that require gas-liquid separation, such as chemical, petroleum and natural gas fields.

[0092] In summary, the conical double-spiral gas-liquid separation structure introduced in this technical solution achieves highly efficient gas-liquid separation through ingenious design and reasonable component configuration, and has advantages such as simple structure, ease of manufacturing and maintenance. This structure has broad application prospects in the field of gas-liquid separation.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conical double-spiral cyclone separator structure, characterized in that, It includes a separator cylinder (1), a conical separation device, a medium tangential inlet (6), a transition guide device, an air outlet (7), and a liquid outlet (12); the conical separation device is located inside the separator cylinder (1) and has an inner and outer double helix structure; the upper part of the separator cylinder (1) is provided with a medium tangential inlet (6), which is connected to the conical separation device; the lower part of the conical separation device is provided with a transition guide device for the medium transition from the outside to the inside of the conical separation device; the top and bottom of the separator cylinder (1) are respectively provided with an air outlet (7) and a liquid outlet (12).

2. The conical double-spiral cyclone separation structure according to claim 1, characterized in that, The conical separation device includes an outer spiral body (2), a conical cylinder (3), an inner spiral body (4), and a central tube (5); the conical cylinder (3) is located inside the separator cylinder (1), the central tube (5) is located inside the conical cylinder (3), the outer spiral body (2) is located between the separator cylinder (1) and the conical cylinder (3), and is welded and fixed to the outer wall of the conical cylinder (3), and the inner spiral body (4) is located between the conical cylinder (3) and the central tube (5), and is welded and fixed to the outer wall of the central tube (5).

3. The conical double-spiral cyclone separation structure according to claim 2, characterized in that, There are gaps between the inner spiral (4) and the inner wall of the conical cylinder (3), and between the outer spiral (2) and the inner wall of the separator cylinder (1).

4. The conical double-screw cyclone separation structure according to claim 2, characterized in that, An annular baffle (9) is provided on the upper inner side of the separator cylinder (1). The outer ring of the annular baffle (9) is welded and fixed to the inner wall of the separator cylinder (1). The inner ring of the annular baffle (9) is welded to the upper part of the central tube (5) through ribs (8).

5. The conical double-spiral cyclone separation structure according to claim 4, characterized in that, The medium tangential inlet (6), conical cylinder (3), and outer spiral (2) are all located below the annular baffle (9); the inlet of the outer spiral (2) is connected to the medium tangential outlet.

6. The conical double-spiral cyclone separation structure according to claim 2, characterized in that, The transition guide device includes a cut (13), and the cavity at the bottom of the outer spiral (2) is connected to the cavity at the bottom of the inner spiral (4) at the cut (13). The cut is semi-conical.

7. The conical double-spiral cyclone separation structure according to claim 6, characterized in that, The transition guide device also includes a transition connecting plate (11), which welds the lower end face of the inner spiral body and the lower end face of the outer spiral body together. The transition connecting plate (11) is an eccentric semi-circular ring plate.

8. The conical double-spiral cyclone separation structure according to claim 7, characterized in that, The transition guide device also includes a cut baffle (10), which is an arc-shaped plate. The side of the cut baffle (10) is welded to the side of the cut (13), the top edge of the cut baffle (10) is welded to the lower surface of the last turn of the outer spiral (2), and the bottom edge of the cut baffle (10) is welded to the transition connecting plate (11). The transition connecting plate (11), the cut baffle (10), and the lower surface of the outer spiral (2) together form an eccentric annular cavity.

9. The conical double-spiral cyclone separation structure according to claim 1, characterized in that, The separator cylinder (1) includes a separator cylindrical body, a top end cap, and a bottom end cap. The top end cap is provided with an air outlet (7), and the bottom end cap is provided with a liquid drain outlet (12).

10. An application of the conical double-spiral cyclone separation structure as described in any one of claims 1 to 9, characterized in that, Used for gas-liquid separation of fluid media.

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