A disc type separating apparatus detachable from an access device

Abstract

The utility model discloses a detachable disc type separating equipment of access device, including the laminated connection sleeve structure of separating machine main part and top, and the feed pipe is divided into front end and back end with the second locking block of flange disc and the second locking groove of connection sleeve positioning, and the clamping and fixing of cooperation two -way screw rod drive's connecting plate realize detachable seal. Connection sleeve layer number adaptation separates phase number, and the inside is equipped with core pipe, sleeve pipe department and discharge chamber, and core pipe and sleeve pipe department are equipped with helical flow guide structure, and through reverse rotation direction, the cross section of gradual change flow channel avoids the collision eddy current, and the oblique flow guide plate of annular buffer chamber auxiliary material pre -rotation, and the helical angle of light phase is greater than heavy phase when three -phase separation. The scheme is convenient to dismount and assemble, and the sealing is reliable, can optimize material flow, adapts to multi -phase separation, reduces maintenance time and material string flow risk, improves separation accuracy and equipment adaptability, is applicable to the separation demand of many industries.

Description

Technical Field

[0001] This utility model relates to the field of disc separator technology, specifically to a disc separator with a detachable inlet / outlet device. Background Technology

[0002] Disc centrifuges are a type of sedimentation centrifuge, mainly used for separating sterile, difficult-to-separate emulsions and suspensions (such as oil-water, oil sludge, flocculent matter, and other coarse, high-viscosity mixtures with high solid content). Their working principle is mainly based on the centrifugal sedimentation principle. The centrifugal force generated by the high-speed rotating discs causes the solid particles or droplets in the mixture to be separated by a greater centrifugal force.

[0003] In the existing technology, the feed pipe of the disc separator is assembled with a flange and multiple bolts for fixed connection. This makes the loading and unloading of the feed pipe cumbersome, cleaning inconvenient, and has low applicability. There is room for optimization. Therefore, it is necessary to design a disc separator with a detachable feed and unloading device to solve the above problems.

[0004] For the reasons mentioned above, it is necessary to propose a disc-type separation device with detachable entry and exit mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a disc-type separation device with a detachable entry and exit device.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A disc-type separation device with a detachable inlet and outlet device includes a disc separator body. A connecting sleeve structure is provided on the top of the disc separator body. The connecting sleeve structure is a stacked structure that divides the feed pipe into a front feed pipe and a rear feed pipe. The ends of the front feed pipe and the rear feed pipe are sealed and connected to both sides of the connecting sleeve structure. The connecting sleeve structure and the feed pipes on both sides are detachably sealed and fixed by a locking device.

[0007] Furthermore, the connecting sleeve structure is a disc-shaped structure with a through hole in its middle. The upper and lower end faces are symmetrically provided with second locking grooves. The front feed pipe and the rear feed pipe are respectively provided with flanges. The flanges are provided with second locking blocks corresponding to the positions of the second locking grooves. The second locking blocks cooperate with the second locking grooves to restrict the radial sliding and circumferential rotation of the flanges relative to the connecting sleeve structure. The end faces of the upper and lower end faces of the connecting sleeve structure that are in contact with the end faces of the flanges are sealing surfaces.

[0008] Furthermore, the locking device is arranged in several groups symmetrically on the outer periphery of the connecting sleeve structure. The locking device includes a connecting plate that moves in a controlled manner. The connecting plate applies a clamping force to the outer side of the flanges on both sides to clamp and seal the stacked flanges and connecting sleeve structure.

[0009] Furthermore, the outer end face of the flange is provided with a first locking groove, and the end of the connecting plate is provided with a first locking block, which is inserted into the first locking groove to form a plug-in fit.

[0010] Furthermore, the locking device includes a locking seat arranged axially along the connecting sleeve structure, a receiving groove formed in the locking seat, a bidirectional screw rotatably connected in the receiving groove, threaded sleeves symmetrically screwed onto two different threaded sections of the bidirectional screw, the threaded sleeves extending out of the side of the locking seat and connecting to the connecting plate; a knob is provided at one end of the bidirectional screw extending out of the receiving groove; a friction connection is formed at the rotatable connection between the knob and the locking seat, a first friction groove is provided at the bottom of the knob, and a second friction groove is provided on the connecting seat to cooperate with the first friction groove.

[0011] Furthermore, the connecting sleeve structure has at least one layer, and the number of layers of the connecting sleeve structure is matched with the number of separation phases of the butterfly separator; the connecting sleeve structure has a discharge chamber inside, and a discharge pipe is connected to the side of the discharge chamber; the connecting sleeve structure has a core tube along the axis, the core tube is disposed through the connecting sleeve structure, and a sleeve part is coaxially sleeved outside the core tube, the sleeve part is connected to the discharge chamber from one side of the connecting sleeve structure.

[0012] Furthermore, both the core tube and the sleeve are provided with a spiral flow guiding structure for directional flow guidance, so that the core tube and the sleeve form independent spiral flow channels to avoid the generation of opposing vortices. The spiral flow guiding structure includes spiral flow guiding plates that are spirally wound in a clockwise or counterclockwise manner on the inner wall of the core tube or the sleeve, so that the material passing through is pre-rotated under the directional flow guidance of the spiral flow guiding plates, and the spiral flow guiding direction of the sleeves with different liquid flow directions is opposite.

[0013] Furthermore, the spiral flow guide structure has a flow channel cross-section that gradually changes from wide at the top and narrow at the bottom for downward flow, and the top cross-sectional area is 1.1-1.3 times that of the bottom; the spiral flow guide structure has a flow channel cross-section that gradually changes from wide at the bottom and narrow at the top for upward flow, and the bottom cross-sectional area is 1.1-1.3 times that of the top.

[0014] Furthermore, the connecting sleeve structure is provided with an annular buffer cavity corresponding to the feed pipe, and the annular buffer cavity is provided with multiple inclined guide plates. The guiding direction of the inclined guide plates is the same as the spiral phase of the downward flowing spiral guide structure.

[0015] Furthermore, for a three-phase separation disc separator, the spiral angle of the spiral guide vanes installed inside the sleeves corresponding to the light phase discharge pipe and the heavy phase discharge pipe is set such that the spiral angle of the spiral guide vane of the light phase is greater than that of the spiral guide vane of the heavy phase.

[0016] The advantages and beneficial effects of this utility model are as follows: 1. High ease of disassembly and assembly, and improved maintenance efficiency: Through the stacked connecting sleeve structure and detachable locking device, the feed pipe is split into the front end and the rear end. The second locking block of the flange and the second locking groove of the connecting sleeve are used for precise positioning. With the help of the bidirectional screw-driven connecting plate, disassembly and assembly can be completed quickly without complicated tools, which greatly shortens the pipeline disassembly time during maintenance and reduces equipment downtime costs.

[0017] 2. Reliable sealing performance and guaranteed separation accuracy: The contact surface between the connecting sleeve and the flange is set as the sealing surface. The locking device applies a uniform clamping force to the flanges on both sides through the connecting plate. Combined with the limiting effect of the second locking block and the second locking groove, it effectively avoids sealing failure caused by radial slippage and circumferential rotation. At the same time, the friction texture of the knob and the locking seat prevents the bidirectional screw from loosening during equipment operation, further ensuring sealing stability and reducing the risk of material cross-flow.

[0018] 3. Optimized and precise flow, adaptable to multiphase separation: The spiral guide structure of the core tube and the sleeve section constructs an independent spiral flow channel through a reverse spiral design, eliminating opposing vortices at the source; the flow channel cross-section gradually changes by 1.1-1.3 times according to the material flow direction, balancing the flow velocity and pressure; the inclined guide plate of the annular buffer chamber is consistent with the spiral direction of the feed spiral, realizing the pre-rotation of the material; the spiral angles of the light phase and the heavy phase are set differently during three-phase separation to adapt to the flowability of different materials, comprehensively improving separation efficiency and accuracy.

[0019] 4. Strong structural adaptability and wide application scenarios: The number of layers in the connecting sleeve structure can be flexibly adjusted according to the number of separated phases, which can meet the needs of liquid-liquid two-phase separation as well as liquid-liquid-solid three-phase separation; the detachable design makes it easy to replace the core tube or sleeve with different spiral flow parameters according to the material characteristics without replacing the whole machine, reducing the cost of equipment modification and upgrade. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a disc-type separation device with a detachable entry and exit device according to this utility model; Figure 2 This is a schematic diagram of the connecting sleeve structure in Embodiment 1 of this utility model; Figure 3 This is a utility model Figure 2 A schematic diagram of the decomposed structure; Figure 4 This is a utility model Figure 2Top view; Figure 5 This is a schematic diagram of the friction texture in this utility model; Figure 6 This is one of the structural schematic diagrams of Embodiment 2 of this utility model; Figure 7 This utility model Figure 6 A structural decomposition diagram; Figure 8 This is the second exploded perspective view of Embodiment 2 of this utility model; Figure 9 This is a utility model Figure 8 A structural decomposition diagram.

[0021] In the diagram: 1. Front feed pipe; 2. Connecting sleeve structure; 3. Rear feed pipe; 4. Disc separator body; 5. Base; 6. Motor; 7. Knob; 8. Receiving groove; 9. Bidirectional screw; 10. Threaded sleeve; 11. Connecting plate; 12. First locking block; 13. First locking groove; 14. Second locking groove; 15. Second locking block; 16. Flange; 17. Locking seat; 18. First friction mark; 19. Second friction mark; 20. Discharge chamber; 21. Discharge pipe; 22. Core tube; 23. Sleeve section; 24. Spiral guide vane; 27. Light phase discharge pipe; 28. Heavy phase discharge pipe; 29. ​​Positioning support rod; 30. Outward flange; 31. Annular groove; 32. First connecting sleeve; 33. Second connecting sleeve. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to examples. These examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] Example 1: A disc-type separation device with detachable entry and exit mechanism, such as Figure 1As shown, a motor 6 is fixed to one side of the top of the base 5, and a disc separator body 4 is fixed to the other side of the top of the base 5. A feed pipe is fixed to the top of the disc separator body 4, and a connecting sleeve structure 2 is connected to the top of the disc separator body 4. The connecting sleeve structure 2 divides the feed pipe into a front feed pipe 1 and a rear feed pipe 3. The front feed pipe 1 and the rear feed pipe 3 are respectively provided with flanges 16, so that the connecting sleeve structure 2 and the flanges 16 on both sides form a stacked structure. The flanges 16 at the ends of the front feed pipe 1 and the rear feed pipe 3 are set on both sides of the connecting sleeve structure 2 in a sealed connection form, and the connecting sleeve structure 2 and the feed pipes on both sides are detachably sealed and fixed by a locking device. The front feed pipe 1 and the rear feed pipe 3 can be separated or connected by a locking device that can be quickly disassembled, thereby realizing the quick connection and separation between the feed pipe and the main body of the machine, and achieving the advantages of convenient disassembly and cleaning and good applicability.

[0024] Furthermore, when this embodiment only applies to the feed pipe, such as Figure 2-4 As shown, the connecting sleeve structure 2 has a disc-shaped structure with a through hole in the middle. The upper end of the through hole is connected to the front feed pipe 1, and the lower end is connected to the rear feed pipe 3. The upper and lower end faces of the connecting sleeve structure 2 are sealed surfaces that fit against the end face of the flange 16. When the upper and lower sides of the connecting sleeve structure 2 are respectively fitted against the flange 16, an end face sealing connection can be formed, thereby connecting the front feed pipe 1 and the rear feed pipe 3 through the through hole to form a complete feed pipe.

[0025] In this embodiment, the two end faces of the connecting sleeve structure 2 are evenly provided with second locking grooves 14, such as Figure 2-4 As shown, second locking blocks 15 are evenly fixed on the inner side of flange 16, and each second locking block 15 is connected to a second locking groove 14. The size of each second locking block 15 matches the size of the second locking groove 14. There are four sets of each second locking groove 14 and second locking block 15. The second locking block 15 and the second locking groove 14 cooperate to restrict the radial sliding and circumferential rotation of flange 16 relative to connecting sleeve structure 2.

[0026] The locking devices are arranged symmetrically in several groups on the outer periphery of the connecting sleeve structure 2. Each locking device includes a controllable relative moving connecting plate 11. The connecting plate 11 applies a clamping force to the outer sides of the flanges 16 on both sides, clamping and sealing the stacked flanges 16 and the connecting sleeve structure 2. The outer end face of the flange 16 is provided with a first locking groove 13, and the end of the connecting plate 11 is provided with a first locking block 12. The first locking block 12 is engaged with the first locking groove 13 to form a plug-in fit.

[0027] Furthermore, the locking device includes a locking seat 17 arranged axially along the connecting sleeve structure 2, a receiving groove 8 formed in the locking seat 17, a bidirectional screw 9 rotatably connected in the receiving groove 8, and threaded sleeves 10 symmetrically screwed onto two different threaded sections of the bidirectional screw 9, the threaded sleeves 10 extending out of the side of the locking seat 17 and connected to the connecting plate 11; a knob 7 is provided at one end of the bidirectional screw 9 extending out of the receiving groove 8; the knob 7 and the rotating connection of the locking seat 17 form a friction connection, the bottom end of the knob 7 is provided with a first friction groove 18, and the connecting seat is provided with a second friction groove 19 that cooperates with the first friction groove 18.

[0028] Specifically, the second locking block 15 and the second locking groove 14 facilitate the positioning of the flange 16 during installation; a locking seat 17 is fixed to the outside of the connecting sleeve structure 2, and each locking seat 17 has a receiving groove 8 inside, and a double-acting screw 9 is rotatably connected inside each receiving groove 8. Threaded sleeves 10 are threadedly connected to both sides of the double-acting screw 9; the width of the threaded sleeve 10 matches the width of the receiving groove 8, and the cross-section of the threaded sleeve 10 is rectangular, which serves to limit and guide the movement of the threaded sleeve 10; a connecting plate 11 is fixed to the inside of each threaded sleeve 10, and a first locking block 12 is fixed to the top of the connecting plate 11; first locking grooves 13 are evenly arranged on the outside of the flange 16, and the positions of the first locking grooves 13 correspond to the positions of the first locking blocks 12; a knob 7 is rotatably connected to the top of the locking seat 17, and the knob 7 is used to drive the rotation of the double-acting screw 9; Figure 3 , 5 As shown, the bottom of the outer side of the knob 7 is provided with a first friction texture 18, and the outer side of the locking seat 17 is provided with a second friction texture 19. The second friction texture 19 is in contact with the first friction texture 18. The first friction texture 18 and the second friction texture 19 are arranged in a longitudinal and transverse bidirectional design. The outer side of the knob 7 is provided with anti-slip texture, and the inner side of the knob 7 is connected to the bidirectional screw 9 to drive its rotation. like Figure 2 and Figure 5 As shown, during use, the friction force of the knob 7 can be increased by the action of the first friction pattern 18 and the second friction pattern 19, that is, it is not easy to rotate when no external force is applied, so that it can remain stationary after rotating to a certain position.

[0029] Working principle: When using this utility model, as follows... Figure 1-5As shown, select the appropriate feed pipe material according to the properties of the fluid, such as corrosivity, temperature, and pressure. Rotate the knob 7 to drive multiple sets of bidirectional screws 9 to rotate. Under the action of the threaded connection, the threaded sleeve 10 and multiple sets of connecting plates 11 are moved outward, thereby canceling the locking of the flange 16. This allows the feed pipe to be quickly unlocked and removed for replacement. The reverse operation can be used for installation. It can be used without the aid of external tools. After assembly, the liquid enters the drum of the disc separator body 4 through the feed pipe. When the mixed liquid enters the drum, it is subjected to the strong centrifugal force generated by the high-speed rotation of the discs. Due to the difference in density and size, the solid particles or liquid droplets are subjected to different centrifugal forces. The heavier particles or liquid droplets are thrown towards the drum wall and deposited in the gaps between the discs to form a sediment layer, while the lighter liquid flows through the gaps between the sediment layers to the center of the drum to form a clear liquid, thus achieving the separation purpose.

[0030] Example 2: In this embodiment, for two-phase separation, the solid-liquid mixture is fed through the feed pipe, and a liquid phase discharge pipe 21 is provided on one side of the feed pipe at the top of the disc separator body. The separated solid phase is discharged from the slag discharge port on the side of the disc separator. In this embodiment, the connecting sleeve structure 2 is not only used for the feed pipe but also for the discharge pipe 21. In the prior art, the liquid phase discharge pipe 21 is usually fixed. Since the liquid phase discharge pipe 21 is perpendicular to the feed pipe direction, the pipeline forms a right-angle bend at this point. Furthermore, because the structure of this part is closed and fixed, it is not convenient to clean the inside of this bend. When the liquid phase discharge pipe 21 is mixed with the solid phase due to the viscosity of the liquid phase, it is easy for impurities to accumulate at this bend, and cleaning is difficult. For the above reasons, this embodiment is further improved. Specifically, the connecting sleeve structure 2 has at least one layer, and the number of layers of the connecting sleeve structure 2 is matched with the number of phases to be separated by the disc separator. Specifically, as shown in the figure Figure 6 , 7 As shown, the connecting sleeve structure 2 has a discharge chamber 20 inside, and a discharge pipe 21 is connected to the side of the discharge chamber 20. The discharge pipe 21 is used to discharge the separated liquid phase. Specifically, in this embodiment, the connecting sleeve structure 2 has a core tube 22 along the axis. The core tube 22 passes through the connecting sleeve structure 2, and a sleeve part 23 is coaxially sleeved on the outside of the core tube 22. The sleeve part 23 enters the discharge chamber 20 from one side of the connecting sleeve structure 2. The sleeve part 23 is coaxially sleeved on the core tube 22. The upper and lower ends of the core tube 22 are respectively connected to the front feed pipe 1 and the rear feed pipe 3. The core tube 22 is used to enter the mixed raw material from top to bottom. The sleeve part 23 is sleeved on the outside of the core tube 22. Its upper end is connected to the discharge chamber 20, and its lower end is connected to the centripetal pump chamber through the sleeve part 23. In this embodiment, the flange 16 of the rear feed pipe 3 is directly connected to the upper end of the butterfly separator body. Figure 7As shown, a sleeve portion 23 is fitted around the outer periphery of the rear feed pipe 3. When the connecting sleeve structure 2 is connected to the lower flange 16, the lower end of the core tube 22 is sealed to the rear feed pipe 3, and the sleeve portion 23 at the lower end of the discharge chamber 20 is also sealed to the sleeve end on the flange 16, forming a seal connection as shown. Figure 6 The structure shown is as follows; in actual use, to fix the position, multiple positioning support rods 29 can be set in the annular gap between the rear feed tube 3 and the sleeve part 23. The positioning support rods 29 can be arranged radially. To facilitate cleaning of the right-angle corner, the upper end of the core tube 22 and the connecting sleeve structure 2 in this embodiment can be detachably connected, for example, by a threaded connection, or by a method such as... Figure 7 The positioning groove connection shown has an outer flange 30 on the upper outer edge of the core tube 22 and an annular groove 31 on the upper end of the connecting sleeve structure 2. During installation, the core tube 22 is inserted from top to bottom. When cleaning is required, the core tube 22 can be easily pulled out, so that the inside of the corner-shaped discharge chamber 20 can be easily cleaned. It can be understood that in this embodiment, the core tube 22 can also be connected to the lower rear feed pipe 3 as a whole, that is, the core tube 22 is inserted downward into the body of the butterfly separator. In this case, the positioning support rod 29 does not need to be set between the outer periphery of the rear feed pipe 3 and the sleeve part 23.

[0031] In another implementation of this embodiment, namely during three-phase separation (liquid-liquid-solid three-phase separation), two liquid phase discharge pipes 21 are provided on one side of the feed pipe at the top of the disc separator body, corresponding to the light phase discharge pipe 27 and the heavy phase discharge pipe 28, respectively. The solid phase slag is still discharged from the slag discharge port on the side of the disc separator body. Therefore, in this embodiment, at least two connecting sleeve structures 2 are provided and stacked sequentially; for example... Figure 8 , 9As shown, the components are stacked sequentially from top to bottom: front flange 16, first connecting sleeve 32, second connecting sleeve 33, and rear flange 16. In this embodiment, the locking device described in Embodiment 1 can also be used to clamp and fix each layer. In this embodiment, two sleeve portions 23 are provided corresponding to the two connecting sleeves. The center of the sleeve portion 23 is set as a core tube 22, allowing the mixture to enter from top to bottom through the core tube 22. The light liquid phase enters the first connecting sleeve 32 from the inner sleeve portion 23. The inner connecting sleeve is used for the light liquid phase to enter the first connecting sleeve 32 from bottom to top; the outer sleeve portion... The annular gap between 23 and the inner sleeve 23 is used for the heavy liquid phase to enter the second connecting sleeve 33 from bottom to top; similarly, this embodiment can also adopt the fixing method of the positioning support rod 29 as in the previous embodiment, or the cooperation method of the outward flange 30 and the annular groove 31, so as to facilitate the removal of each connecting sleeve. It can be understood that since this embodiment is used to separate the light liquid phase and the heavy liquid phase, and can be disassembled for cleaning, a better cleaning effect can be obtained, avoiding the phenomenon that the dead corner positions inside the first connecting sleeve 32 and the second connecting sleeve 33 cannot be cleaned.

[0032] Example 3: This embodiment revolves around a "one-in, two-out" concentric sleeve (central feed core tube 22, middle layer light phase discharge sleeve, and outer layer heavy phase discharge sleeve). Through the directional design of the spiral flow guide structure, the gradual optimization of the flow channel cross section, and the auxiliary flow guide of the buffer chamber, the problem of the opposing vortex of feed and discharge is fundamentally solved. At the same time, it adapts to the flow characteristics of different materials in three-phase separation, improving separation accuracy and equipment stability.

[0033] Specifically, in the core structural design of the concentric sleeve, the spiral flow guiding structure is key to avoiding opposing vortices. This is achieved by setting spiral flow guiding vanes 24 on the core tube 22 and the inner wall of the sleeve, constructing independent directional flow channels to realize the pre-rotation and coordinated flow of the material. Specifically, such as... Figure 8As shown, the inner wall of the central feed tube 22, which serves as the "one-inlet," is spirally wound with spiral guide vanes 24 in a clockwise or counterclockwise direction. This allows the downward-flowing feed to form a pre-rotation in the same direction as the drum's rotation under the guidance of the guide vanes. For example, when the drum rotates clockwise, the spiral guide vanes 24 of the feed tube 22 are also set to clockwise, so that the material has an initial velocity along the tangential direction of the drum before entering the drum, reducing the impact with the material already in the drum. As for the light phase discharge sleeve and heavy phase discharge sleeve (i.e., the "sleeve section 23"), which serve as the "two outlets," the spiral guide vanes 24 on their inner walls adopt a rotation direction opposite to that of the feed tube 22. For example, when the feed tube 22 is clockwise, both discharge sleeves are set to counterclockwise, so that the upward-flowing light and heavy phases spiral upward in a counterclockwise direction. This design, with opposite feeding and discharging directions, avoids eddies caused by opposing directions in the downward feeding flow and the upward discharging flow. Furthermore, the pre-rotation allows the material to better adapt to the centrifugal force field of the drum, reducing the disruption of stratification caused by flow turbulence. Simultaneously, all spiral guide vanes 24 are tightly fitted to the tube wall, ensuring no material cross-flow between channels and further guaranteeing the separation effect. In addition, the spiral guide vanes 24 also serve as connecting components to maintain coaxial alignment between the core tube 22 and the sleeve section 23 (replacing the function of the positioning support rod 29 and generating rotational driving force for the material).

[0034] For channels with different flow directions, the solution optimizes material flow velocity and pressure stability through a gradual cross-sectional design, allowing the channel cross-sectional dimensions to dynamically adapt to the material flow direction and avoid sudden changes in local flow velocity or pressure imbalance. For downward-flowing channels (i.e., the channels corresponding to the central feed core tube 22), the cross-section adopts a gradual "wider at the top and narrower at the bottom" form, with the top cross-sectional area being 1.1-1.3 times that of the bottom (preferably 1.2 times). The core logic of this design is that when the material enters from the top, the wider cross-section can reduce the initial flow velocity and reduce the impact on the buffer chamber; as the material flows downward, the cross-section gradually narrows, and the flow velocity steadily increases, so that when the material reaches the drum feed distributor, the velocity is exactly matched with the rotation rhythm of the drum, avoiding material accumulation due to excessively slow flow velocity or local eddies inside the drum caused by excessively fast flow velocity. For the upward-flowing channels (i.e., the channels corresponding to the light phase discharge sleeve and the heavy phase discharge sleeve), a gradually changing cross-section with a wider bottom and narrower top is adopted. The bottom cross-sectional area is 1.1-1.3 times that of the top (preferably 1.2 times). When entering the bottom of the discharge sleeve from the drum, the wider cross-section can accommodate more material, reducing the flow resistance at the inlet, which is especially suitable for the characteristics of the heavy phase, which has a high density and slow flow velocity. As the material flows upward, the cross-section gradually narrows, and the flow velocity increases slowly. This avoids material stagnation caused by excessively slow flow velocity and allows the material to smoothly enter the subsequent pipeline through moderate acceleration, reducing the impact of pressure fluctuations on flow stability. This gradually changing cross-section design is not simply a size adjustment, but rather a gradient change from "wide to narrow" or "narrow to wide" that keeps the material in a state of "smooth acceleration and gentle deceleration" within the channel, improving the overall flow stability from a fluid dynamics perspective.

[0035] The annular buffer chamber and inclined guide plates in the connecting sleeve structure 2 are "pre-optimization links" of the feed channel. Their function is to further weaken the impact kinetic energy of the feed and ensure that the material has formed a stable pre-rotation state before entering the spiral flow channel. The annular buffer chamber is set around the central feed pipe and is located at the top of the sleeve. When the material enters the buffer chamber from the external pipeline, it does not directly enter the feed core tube 22, but first comes into contact with multiple inclined guide plates in the chamber. The guiding direction of these inclined guide plates is completely consistent with the spiral guiding structure of the feed core tube 22. For example, when the feed core tube 22 is clockwise, the guide plates are also inclined in a clockwise direction. This design allows the material to begin flowing clockwise within the buffer chamber. Guided by the guide plates, the original "vertically downward" feed is transformed into a "rotating downward" flow along the inner wall of the buffer chamber, initially eliminating the material's impact inertia. Simultaneously, multiple guide plates are evenly distributed within the buffer chamber (typically arranged at 30°-45° intervals), dispersing the material into multiple stable streams and preventing localized aggregation or eddies within the buffer chamber. After passing through the buffer chamber, the material enters the spiral flow channel of the feed core tube 22 with a stable rotation direction and velocity, eliminating the need for significant directional adjustments via the spiral guide vanes 24. This further reduces flow resistance and turbulence risks within the flow channel, achieving a "seamless connection" between the feed flow and the stratified material environment within the drum.

[0036] In specific scenarios involving three-phase separation, the solution differentiates the helix angles of the light and heavy phase discharge sleeves to accommodate the different flow rates of the two materials, ensuring stable and efficient discharge of both discharge streams. Specifically, the helix angle (i.e., the angle between the guide vane and the sleeve axis) of the helical guide vane 24 inside the light phase discharge sleeve is greater than that of the heavy phase discharge sleeve. For example, the helix angle of the light phase is set to 20°-25°, and that of the heavy phase is set to 15°-20°. The core basis of this design is the difference in physical properties between the light and heavy phases: the light phase (such as the oil phase) has low density and low viscosity, resulting in less flow resistance in the flow channel. A larger helix angle means that the guide vane is "steeper," which can guide the light phase to flow upward along the helical flow channel at a faster speed, avoiding the light phase from stagnating in the sleeve due to too slow a flow rate, or secondary mixing with the heavy phase. On the other hand, the heavy phase (such as the water phase or the water phase containing a small amount of solids) has high density and relatively high viscosity (the flow resistance is further increased under some working conditions due to the presence of solid particles). A smaller helix angle makes the guide vane "smoother," which can reduce the flow resistance of the heavy phase and prevent the heavy phase from being discharged poorly due to excessive resistance, or the accumulation of solid particles caused by the flow rate scouring the pipe wall. Meanwhile, this differentiated spiral angle design can balance the pressure of the two discharge flows. The light phase has a fast flow rate but low resistance, while the heavy phase has a slow flow rate but high resistance. By adjusting the spiral angle, the discharge pressure of the two phases can be kept within a similar range, avoiding the "backflow" of one phase into the other phase flow channel due to excessive pressure difference, thus further ensuring the purity and stability of the three-phase separation.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A disc-type separation device with a detachable entry and exit mechanism, characterized in that, The device includes a butterfly separator body, with a connecting sleeve structure on the top of the butterfly separator body. The connecting sleeve structure is a stacked structure that divides the feed pipe into a front feed pipe and a rear feed pipe. The ends of the front feed pipe and the rear feed pipe are sealed and connected to both sides of the connecting sleeve structure, and the connecting sleeve structure and the feed pipes on both sides are detachably sealed and fixed by a locking device.

2. The disc-type separation device with a detachable entry and exit mechanism according to claim 1, characterized in that, The connecting sleeve structure is disc-shaped with a through hole in its center. The upper and lower end faces are symmetrically provided with second locking grooves. The front feed pipe and the rear feed pipe are respectively provided with flanges. The flanges are provided with second locking blocks corresponding to the positions of the second locking grooves. The second locking blocks cooperate with the second locking grooves to restrict the radial sliding and circumferential rotation of the flanges relative to the connecting sleeve structure. The end faces of the upper and lower end faces of the connecting sleeve structure that are in contact with the end faces of the flanges are sealing surfaces.

3. The disc-type separation device with a detachable entry and exit mechanism according to claim 2, characterized in that, The locking device is arranged in several groups symmetrically on the outer periphery of the connecting sleeve structure. The locking device includes a connecting plate that moves in a controlled manner. The connecting plate applies a clamping force to the outer side of the flanges on both sides to clamp and seal the stacked flanges and connecting sleeve structure.

4. The disc-type separation device with a detachable entry and exit mechanism according to claim 3, characterized in that, The outer end face of the flange is provided with a first locking groove, and the end of the connecting plate is provided with a first locking block. The first locking block is inserted into the first locking groove to form a plug-in fit.

5. A disc-type separation device with a detachable entry and exit mechanism according to claim 3, characterized in that, The locking device includes a locking seat arranged axially along the connecting sleeve structure, a receiving groove formed in the locking seat, a bidirectional screw rotatably connected in the receiving groove, and threaded sleeves symmetrically screwed onto two different threaded sections of the bidirectional screw, the threaded sleeves extending out of the side of the locking seat and connecting to the connecting plate; a knob is provided at one end of the bidirectional screw extending out of the receiving groove; a friction connection is formed between the knob and the rotating connection of the locking seat, a first friction groove is provided at the bottom of the knob, and a second friction groove is provided on the connecting seat to cooperate with the first friction groove.

6. The disc-type separation device with a detachable entry and exit mechanism according to claim 1, characterized in that, The connecting sleeve structure has at least one layer, and the number of layers of the connecting sleeve structure is matched with the number of separation phases of the butterfly separator; the connecting sleeve structure has a discharge chamber inside, and a discharge pipe is connected to the side of the discharge chamber; the connecting sleeve structure has a core tube along the axis, the core tube is disposed through the connecting sleeve structure, and a sleeve part is coaxially sleeved outside the core tube, the sleeve part is connected to the discharge chamber from one side of the connecting sleeve structure.

7. A disc-type separation device with a detachable entry and exit mechanism according to claim 6, characterized in that, Both the core tube and the sleeve are provided with a spiral flow guiding structure for directional flow guidance, so that the core tube and the sleeve form independent spiral flow channels to avoid the generation of opposing vortices. The spiral flow guiding structure includes spiral flow guiding plates that are spirally wound in a clockwise or counterclockwise manner on the inner wall of the core tube or the sleeve, so that the material passing through is pre-rotated under the directional flow guidance of the spiral flow guiding plates, and the spiral flow guiding direction of the sleeves with different liquid flow directions is opposite.

8. A disc-type separation device with a detachable entry and exit mechanism according to claim 7, characterized in that, The spiral flow guide structure has a cross-section that gradually changes from wide at the top and narrow at the bottom for downward flow, and the area of ​​the top cross-section is 1.1-1.3 times that of the bottom; the spiral flow guide structure has a cross-section that gradually changes from wide at the bottom and narrow at the top for upward flow, and the area of ​​the bottom cross-section is 1.1-1.3 times that of the top.

9. A disc-type separation device with a detachable entry and exit mechanism according to claim 7, characterized in that, The connecting sleeve structure has an annular buffer cavity corresponding to the feed pipe. The annular buffer cavity is provided with multiple inclined guide plates. The guiding direction of the inclined guide plates is the same as the rotation direction of the downward flowing spiral guide structure.

10. A disc-type separation device with a detachable entry and exit mechanism according to claim 8, characterized in that, For a three-phase separation disc separator, the spiral angle of the spiral guide vanes installed in the sleeves corresponding to the light phase discharge pipe and the heavy phase discharge pipe is set such that the spiral angle of the spiral guide vane of the light phase is greater than that of the spiral guide vane of the heavy phase.

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