A baffle guide structure in a separation tank

Abstract

The utility model discloses a kind of baffles in separating tank inner flow guide structure, belong to separating tank technical field, its technical scheme main points include separating tank body, the inner side of separating tank body is fixedly connected with flow guide mechanism, the surface welding of flow guide mechanism has flow guide mechanism, flow guide mechanism constructs staggered flow guide structure by flow guide shell, alternately spaced disc baffle and circular ring baffle, break the linear flow field limitation of traditional single wave baffle, after gas-liquid mixture enters, need along disc baffle block, to shell wall diffusion, circular ring baffle guide, to the spiral path flow of central convergence, substantially extend flow path and stay time in tank, create sufficient condition for droplet due to inertia impact plate wall, gravity settlement, effectively reduce the problem of incomplete separation caused by short-circuit flow, the air hole of disc baffle and the air vent of circular ring baffle form stepped airflow channel.

Description

Technical Field

[0001] This utility model relates to the field of separation tank technology, and in particular to a flow guiding structure with baffles inside a separation tank. Background Technology

[0002] The baffle plate flow guiding structure inside the separator is an internal component used to improve the efficiency of gas-liquid or gas-solid separation. It separates different phases in the fluid by changing the direction of fluid flow.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, most existing baffles use corrugated baffles, which lack a structure for staggered flow guidance. This results in a single and short flow path for the gas-liquid mixture within the separator, making it easy for the fluid to form short-circuit flows or dead zones, thereby reducing the gas-liquid separation efficiency. In particular, the interception effect on tiny droplets is poor. At the same time, the traditional corrugated structure is prone to secondary entrainment of the separated liquid due to turbulent flow field, thus affecting the final separation effect.

[0004] To address this, a baffle plate flow guiding structure inside the separation tank is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a baffle guide structure inside a separator, which solves the problem that most existing separators use corrugated baffles, which lack a structure for staggered flow guidance. This results in a single and short flow path for the gas-liquid mixture within the separator, making it easy for the fluid to form short-circuit flow or dead zones, thereby reducing the gas-liquid separation efficiency. In particular, the interception effect on tiny droplets is poor. At the same time, the traditional corrugated structure is prone to secondary entrainment of the separated liquid due to turbulent flow field, thus affecting the final separation effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow guiding structure with baffles inside a separator tank, comprising a separator tank body, a flow guiding mechanism fixedly connected to the inner side of the separator tank body, a flow diversion mechanism welded to the surface of the flow guiding mechanism, the flow guiding mechanism comprising a flow guiding shell, a plurality of disc flow guiding plates, a plurality of annular flow guiding plates, a plurality of vent holes and a vent, the flow guiding shell being installed inside the separator tank body, the disc flow guiding plates being welded to the inner side of the flow guiding shell, the annular flow guiding plates being welded to the rear side of the disc flow guiding plates, the vent holes being opened on the inner side of the disc flow guiding plates, and the vents being opened in the middle of the inner side of the annular flow guiding plates.

[0007] Preferably, the drainage mechanism includes a drainage plate, a sealing ring, a flow plate, several flow holes, several drain holes, and a drain pipe, wherein the drainage plate is welded to the inner side of the drainage shell.

[0008] Preferably, the sealing ring is welded to the inside of the vent, the flow plate is welded to the rear side of the inner side of the guide plate, and the flow hole is formed on the surface of the flow plate.

[0009] Preferably, the drain hole is located at the bottom of the inner wall of the guide shell, the drain pipe is installed inside the drain hole, and the bottom of the drain pipe extends through and to the outside of the bottom of the separator body.

[0010] Preferably, the drainage plate is funnel-shaped, and the inner side of the drainage plate is coated with a nano-crystalline water-based topcoat.

[0011] Preferably, the disc guide plate and the annular guide plate are installed alternately on the inner side of the guide shell, and the surfaces of the disc guide plate and the annular guide plate are coated with a nano-crystalline water-based topcoat.

[0012] Preferably, the inner side of the flow guide shell is welded with a number of reinforcing ribs, and the surface of the reinforcing ribs is coated with an anti-corrosion coating.

[0013] Preferably, a hydrophobic metal fiber sintered mesh is installed on the inner side of the flow hole, and the surface of the hydrophobic metal fiber sintered mesh is coated with a hydrophobic coating.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The flow guiding mechanism of this application constructs an interlaced flow guiding structure through a flow guiding shell, alternating disc guide plates, and annular guide plates. This breaks the limitations of the linear flow field of traditional single-waveform baffles. After the gas-liquid mixture enters, it needs to flow along a spiral path of obstruction by the disc guide plates, diffusion towards the shell wall, guidance by the annular guide plates, and convergence towards the center. This significantly extends the flow path and residence time in the tank, creating sufficient conditions for droplets to impact the plate wall due to inertia and settle due to gravity. This effectively reduces the problem of incomplete separation caused by short-circuit flow. The vent holes of the disc guide plates and the vents of the annular guide plates form a stepped airflow channel. On the one hand, this avoids excessive pressure loss due to complete obstruction of airflow, ensuring smooth gas flow and reducing the operating energy consumption of the separator. On the other hand, the orifice guides the airflow to pass through the plate evenly, avoiding secondary entrainment of droplets caused by excessively high local flow velocities. At the same time, the sealing ring eliminates the bypass flow in the vent gap, further improving the uniformity of the flow field. 2. The flow guiding mechanism of this application features a funnel-shaped flow guiding plate with the large-diameter end facing the inlet of the separator tank. This design buffers and diffuses the incoming gas-liquid mixture, reducing the impact velocity of the fluid and preventing eddies caused by sudden changes in flow velocity, thus minimizing energy loss due to turbulence. Furthermore, the smooth transition of the generatrix angle guides the fluid to flow evenly towards the flow plate, preventing localized fluid accumulation and laying a stable flow field foundation for subsequent flow separation through the flow holes. The flow holes of the flow plate, as a crucial element in the initial gas-liquid separation, are fitted with a hydrophobic sintered metal fiber mesh on their inner side, providing high permeability and increased efficiency. The effective interception feature allows gas to pass smoothly while intercepting tiny droplets in the airflow. Combined with the hydrophobic properties of the sintered mesh, the intercepted droplets can quickly slide off to the flow plate, avoiding blockage of the flow holes. The drain hole at the bottom of the guide shell and the drain pipe extending to the outside of the tank form an independent drain channel. On the one hand, the drain hole is set along the bottom of the inner wall of the guide shell, which can collect all the liquid separated from the guide mechanism and the flow guiding mechanism. Combined with the straight-through design of the drain pipe, it avoids liquid stagnation in the tank. On the other hand, the drain pipe extends to the outside of the tank, which is convenient for connection with the external liquid collection system to realize centralized liquid treatment. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the baffle guide structure inside the separator tank of this utility model; Figure 2 This is a disassembly diagram of the separation tank body, the flow guiding mechanism, and the flow diversion mechanism of this utility model; Figure 3 This is a schematic diagram of the flow guiding mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the diversion plate of this utility model; Figure 5 This is a schematic diagram of the structure of the drain pipe of this utility model.

[0016] In the figure, 1. Separator body; 2. Flow guiding mechanism; 21. Flow guiding shell; 22. Disc guide plate; 23. Circular guide plate; 24. Vent hole; 25. Vent port; 3. Flow diversion mechanism; 31. Flow diversion plate; 32. Sealing ring; 33. Flow plate; 34. Flow hole; 35. Drain hole; 36. Drain pipe; 4. Reinforcing rib; 5. Hydrophobic metal fiber sintered mesh. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 The present invention provides the following technical solution: A flow guiding structure with baffles inside a separator includes a separator body 1. A flow guiding mechanism 2 is fixedly connected to the inner side of the separator body 1. A flow guiding mechanism 3 is welded to the surface of the flow guiding mechanism 2. The flow guiding mechanism 2 includes a flow guiding shell 21, a plurality of disc flow guiding plates 22, a plurality of annular flow guiding plates 23, a plurality of vent holes 24, and a vent 25. The flow guiding shell 21 is installed inside the separator body 1. The disc flow guiding plates 22 are welded to the inner side of the flow guiding shell 21. The annular flow guiding plates 23 are welded to the rear side of the disc flow guiding plates 22. The vent holes 24 are opened inside the disc flow guiding plates 22. The vent 25 is opened in the middle of the inner side of the annular flow guiding plates 23.

[0019] In this embodiment: by setting the separation tank body 1 to provide a stable installation space for the flow guiding mechanism 2 and the flow diversion mechanism 3, it is ensured that the structural positions of each component remain fixed during the separation process, avoiding component displacement due to fluid impact. At the same time, its closed cavity structure provides an independent separation environment for the gas-liquid mixture, preventing fluid leakage or intrusion of external impurities during the separation process, and ensuring the safety and stability of the separation operation. The flow guiding shell 21 can integrate the disc flow guiding plate 22 and the annular flow guiding plate 23 into an independent flow guiding unit, avoiding the flow field disturbance caused by the dispersed installation of each flow guiding plate. The circular structure of the disc flow guiding plate 22 can block the gas-liquid mixture from flowing in a straight line along the center of the shell, forcing the flow... The fluid diffuses towards the edge of the outer shell, extending the flow path. The annular guide plate 23 can redirect the fluid that diffuses towards the edge of the outer shell back to the central region, forming a spiral flow field. This significantly increases the residence time of the fluid in the guide mechanism 2, creating conditions for the impact separation of tiny droplets. The vent 24 can achieve the function of diversion and pressure reduction. On the one hand, it guides some gas through the disc guide plate 22 through the evenly distributed small holes, avoiding the accumulation of fluid on the front side of the plate and reducing airflow resistance. On the other hand, the small aperture design can intercept some larger droplets, assisting in the initial separation. The vent 25 can guide the fluid passing through the disc guide plate 22 to converge towards the center and flow smoothly, avoiding the formation of a dead zone inside the annulus.

[0020] Specifically, such as Figure 4 , Figure 5 As shown, the drainage mechanism 3 includes a drainage plate 31, a sealing ring 32, a flow plate 33, several flow holes 34, several drain holes 35 and a drain pipe 36. The drainage plate 31 is welded to the inner side of the drainage shell 21.

[0021] Specifically, such as Figure 4 , Figure 5 As shown, the sealing ring 32 is welded to the inner side of the vent 25, the flow plate 33 is welded to the rear side of the inner side of the guide plate 31, and the flow hole 34 is opened on the surface of the flow plate 33.

[0022] Specifically, such as Figure 4 , Figure 5 As shown, the drain hole 35 is opened at the bottom of the inner wall of the guide shell 21, and the drain pipe 36 is installed inside the drain hole 35. The bottom of the drain pipe 36 penetrates and extends to the outside of the bottom of the separator body 1.

[0023] In this embodiment: by setting the large-diameter end of the guide plate 31 to face the inlet of the separator tank, it can buffer and diffuse the incoming gas-liquid mixture, reduce the fluid impact velocity, avoid droplet atomization caused by excessive flow velocity, and reduce secondary entrainment. The small-diameter end smoothly transitions to the guide shell 21, which can guide the fluid to flow evenly to the flow plate 33, avoiding uneven local flow velocity. The sealing ring 32 can fill the installation gap between the vent 25 and the flow plate 33 and the guide plate, preventing the gas-liquid mixture from short-circuiting through the gap, ensuring that all fluids undergo staggered guidance and flow filtration processes, and preventing insufficiently separated fluids from being directly discharged. The flow plate 33 can receive fluids from the guide plate. The gas-liquid mixture guided by plate 31 is initially separated by the plate. The liquid flows downward along the plate wall under the action of gravity, while the gas enters the guiding mechanism 2 upward through the flow hole 34. The flow hole 34 can ensure that the gas passes through in an orderly manner and avoid local airflow concentration. The drain hole 35 can collect all the liquid that slides down from the guide plate, the guide plate 31, and the flow plate 33, and prevent the liquid from stagnating in the guiding mechanism 2. The drain pipe 36 can directly discharge the separated liquid outside the tank, which is convenient for connection with external liquid collection equipment to realize centralized treatment or recycling of the liquid. At the same time, a one-way valve is installed at the bottom of the drain pipe 36 to prevent external air backflow and ensure the stability of the draining process.

[0024] Specifically, such as Figure 4 As shown, the drainage plate 31 is horn-shaped, and the inner side of the drainage plate 31 is coated with a nano-crystalline water-based topcoat.

[0025] Specifically, such as Figure 3 As shown, the disc guide plate 22 and the annular guide plate 23 are alternately installed on the inner side of the guide shell 21, and the surfaces of the disc guide plate 22 and the annular guide plate 23 are coated with nano-crystalline water-based topcoat paint.

[0026] In this embodiment: by setting the guide plate 31 to be funnel-shaped, with its large-diameter end facing the fluid inlet of the separator body 1 and its small-diameter end smoothly transitioning to the inner wall of the guide shell 21, it can play a triple role of buffering, diffusion and guiding the incoming gas-liquid mixture. By setting a nano-crystalline water-based topcoat, it is prevented that after the droplets in the gas-liquid mixture hit the inner wall of the guide plate 31, the droplets will not undergo secondary evaporation due to retention or be re-entrained by the airflow. By setting the disc guide plate 22 and the annular guide plate 23 to be installed alternately on the inner side of the guide shell 21, the alternating structure avoids the dead zone that is easily formed on both sides of the plate body by the traditional wave-shaped baffle, ensuring that all gas-liquid mixtures can participate in the separation process without short-circuit flow phenomenon. By setting a nano-crystalline water-based topcoat, the droplets slide off quickly, avoiding the accumulation of scale on the plate body surface.

[0027] Specifically, such as Figure 4 As shown, several reinforcing ribs 4 are welded to the inner side of the flow guide shell 21, and the surface of the reinforcing ribs 4 is coated with anti-corrosion paint.

[0028] Specifically, such as Figure 4 As shown, a hydrophobic metal fiber sintered mesh 5 is installed on the inner side of the flow hole 34, and the surface of the hydrophobic metal fiber sintered mesh 5 is coated with a hydrophobic coating.

[0029] In this embodiment: By setting reinforcing ribs 4, the spiral flow field formed by the gas-liquid mixture in the guide shell 21 will generate a continuous lateral impact force on the shell. The reinforcing ribs 4 can disperse the impact force through radial support, preventing the guide shell 21 from deforming due to long-term stress. By setting anti-corrosion coating, the reinforcing ribs 4 are prevented from being corroded, extending their service life. By setting hydrophobic metal fiber sintered mesh 5, the hydrophobic metal fiber sintered mesh 5 can efficiently intercept tiny droplets in the gas-liquid mixture through inertial collision and interception effect, reducing the amount of liquid carried by the gas entering the guide mechanism 2, and significantly reducing the separation pressure of the subsequent guide plate. By setting hydrophobic coating, droplets cannot remain on the mesh surface or in the pores and slide directly to the flow plate 33, ensuring that the sintered mesh maintains a low resistance state for a long time.

[0030] Working principle: First, the gas-liquid mixture enters the separator body 1. At this time, the large-diameter end of the trumpet-shaped guide plate 31 faces the mixture inlet, reducing the fluid impact velocity by increasing the contact area and preventing secondary entrainment of droplets due to high-speed impact atomization. At the same time, the nano-crystalline water-based topcoat coating on the inner side of the guide plate 31 has a hydrophobic effect, causing the droplets impacting the plate wall to quickly agglomerate and flow along the plate wall towards the small-diameter end, uniformly guiding them to the flow plate 33 on the rear side. Then, after the gas-liquid mixture reaches the flow plate 33, the flow plate 33 causes the liquid to flow downward along the plate wall under the action of gravity, while the gas needs to pass through... The gas enters the flow guiding mechanism 2 through the flow passage 34. During this process, the hydrophobic metal fiber sintered mesh 5 installed inside the flow passage 34 intercepts tiny droplets in the gas through inertial collision and interception effects, while filtering solid impurities in the fluid. The hydrophobic coating on the mesh surface prevents droplets from accumulating in the pores. The intercepted droplets slide down the sintered mesh to the flow plate 33, further improving the initial separation effect and ensuring a significant reduction in the amount of liquid carried by the gas entering the flow guiding mechanism 2. Then, the gas, after initial filtration, forms a spiral flow field under the action of the alternately installed disc flow guide plates 22 and annular flow guide plates 23. At this stage of deep separation, the disc-shaped guide plate 22 blocks the gas from flowing linearly along the center of the shell, forcing the gas to diffuse towards the edge of the guide shell 21. Simultaneously, the vents 24 on its surface guide some gas through in an orderly manner, balancing the airflow pressure and intercepting some large droplets. Subsequently, the annular guide plate 23 redirects the gas that has diffused towards the edge back to the central region. Combined with the vent 25, this allows the gas to continuously flow along a spiral path of diffusion and convergence, significantly extending the gas's residence time within the guide mechanism 2. During this period, the nanocrystalline water-based topcoat on the surfaces of both guide plates prevents droplet adhesion, and the separated droplets slide down the plate wall to the guide. At the bottom of the outer shell 21, the traditional wave-shaped baffle plate breaks through the limitations of dead zones and incomplete separation. Finally, the liquid that slides down from the guide plate 31, the flow plate 33, the disc guide plate 22 and the annular guide plate 23 converges to the drain hole 35 at the bottom of the inner wall of the guide shell 21. The drain hole 35 is connected to the drain pipe 36 that penetrates to the outside of the separator body 1. The liquid enters the drain pipe 36 under the action of gravity, and the single-way valve installed at the bottom of the drain pipe 36 effectively prevents the backflow of external air, ensuring that the liquid is stably discharged from the tank, which is convenient for subsequent centralized treatment or recycling, and achieving the goal of efficient gas-liquid separation.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flow guiding structure with baffles inside a separator tank, comprising a separator tank body (1), characterized in that: A flow guiding mechanism (2) is fixedly connected to the inner side of the separation tank body (1). A flow guiding mechanism (3) is welded to the surface of the flow guiding mechanism (2). The flow guiding mechanism (2) includes a flow guiding shell (21), several disc flow guiding plates (22), several annular flow guiding plates (23), several vent holes (24) and vents (25). The flow guiding shell (21) is installed on the inner side of the separation tank body (1). The disc flow guiding plates (22) are welded to the inner side of the flow guiding shell (21). The annular flow guiding plates (23) are welded to the rear side of the disc flow guiding plates (22). The vent holes (24) are opened on the inner side of the disc flow guiding plates (22). The vents (25) are opened in the middle of the inner side of the annular flow guiding plates (23).

2. The flow guiding structure of the baffle plate inside the separator according to claim 1, characterized in that: The drainage mechanism (3) includes a drainage plate (31), a sealing ring (32), a flow plate (33), several flow holes (34), several drain holes (35) and a drain pipe (36), and the drainage plate (31) is welded to the inner side of the drainage shell (21).

3. The flow guiding structure of the baffle plate inside the separation tank according to claim 2, characterized in that: The sealing ring (32) is welded to the inside of the vent (25), the flow plate (33) is welded to the rear side of the inside of the flow guide plate (31), and the flow hole (34) is opened on the surface of the flow plate (33).

4. The flow guiding structure of the baffle plate inside the separator according to claim 2, characterized in that: The drain hole (35) is located at the bottom of the inner wall of the guide shell (21), and the drain pipe (36) is installed inside the drain hole (35). The bottom of the drain pipe (36) extends through and to the outside of the bottom of the separator body (1).

5. The flow guiding structure of the baffle plate inside the separator according to claim 2, characterized in that: The drainage plate (31) is horn-shaped, and the inner side of the drainage plate (31) is coated with a nano-crystalline water-based topcoat.

6. The flow guiding structure of the baffle plate inside the separator according to claim 1, characterized in that: The disc guide plate (22) and the annular guide plate (23) are installed alternately on the inner side of the guide shell (21), and the surfaces of the disc guide plate (22) and the annular guide plate (23) are coated with nano-crystalline water-based topcoat paint.

7. The flow guiding structure of the baffle plate inside the separator according to claim 1, characterized in that: The inner side of the flow guide shell (21) is welded with several reinforcing ribs (4), and the surface of the reinforcing ribs (4) is coated with anti-corrosion paint.

8. The flow guiding structure of the baffle plate inside the separator according to claim 2, characterized in that: A hydrophobic metal fiber sintered mesh (5) is installed on the inner side of the flow hole (34), and the surface of the hydrophobic metal fiber sintered mesh (5) is coated with a hydrophobic coating.

Images