Buffer tank with gas-liquid separation function

Abstract

The utility model provides a buffer tank with a gas-liquid separation function, which relates to the technical field of buffer tanks and comprises a tank body, a liquid inlet pipe arranged on one side of the tank body, two foot stools arranged on the bottom surface of the tank body, a liquid outlet arranged between the two foot stools, a manhole arranged on the top surface of the tank body, a demister arranged inside the tank body and a mist eliminator arranged on one side of the demister. A buffer plate is arranged on the side, away from the mist eliminator, of the mist breaking net, and a series of obstacles are formed on the buffer plate through threaded columns. When a gas-liquid mixture impacts the buffer plate, strong disturbance can be generated. The disturbance enables a gas-liquid interface to become unstable, bubbles in the liquid escape more easily, the disturbance effect can be intensified through the shape and the arrangement mode of the threaded columns, due to the fact that when fluid bypasses the threaded columns, complex vortexes and shearing force can be generated, tiny liquid drops carried in the gas are separated, the efficiency of the follow-up treatment procedure is improved, and the gas-liquid separation efficiency is improved. And the defect of limited gas-liquid separation of the buffer plate is overcome.

Description

Technical Field

[0001] This utility model relates to the field of buffer tank technology, and in particular to a buffer tank with gas-liquid separation function. Background Technology

[0002] According to the Chinese Publication No. CN219272996U, a buffer tank for discharging organosilicon slurry has a valved tail gas inlet pipe fixedly connected to the upper left side of the tank body. An arc-shaped baffle is fixedly installed at the upper left end of the tank body cavity. A mist-collecting mechanism is fixedly installed on the right side of the top surface of the tank body cavity. A valved tail gas outlet pipe is fixedly connected to the right side of the upper surface of the tank body cavity. A tail gas residual liquid separator is fixedly installed at the end of the valved tail gas outlet pipe. The device can separate liquid organosilicon monomers in the tail gas. The separated liquid organosilicon monomers are guided to the lower part of the tank body cavity to prevent them from entering the absorption device. The separated liquid organosilicon monomers can be returned to the distillation system of this unit to reduce the loss of organosilicon monomers. Furthermore, the buffer tank improves the interference resistance of the tail gas absorption system and effectively stabilizes the vacuum level of the tail gas absorption system.

[0003] In the aforementioned technologies and existing technologies, the buffer plates of buffer tanks are generally smooth, bent baffles that mainly rely on their own obstruction to slow down the fluid speed and perform preliminary gas-liquid separation. However, ordinary top plates can usually only achieve gas-liquid separation by gravity and simple collisions, resulting in limited separation efficiency. Utility Model Content

[0004] The purpose of this invention is to address the limitations of existing buffer plates in gas-liquid separation, and to propose a buffer tank with gas-liquid separation function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a buffer tank with gas-liquid separation function, comprising a tank body, an inlet pipe on one side of the tank body, two legs on the bottom surface of the tank body, a drain port in the middle of the two legs, a manhole on the top surface of the tank body, a defoaming screen inside the tank body, a defoamer on one side of the defoaming screen, a buffer plate on the side of the defoaming screen away from the defoamer, a connecting frame on the surface of the buffer plate, a movable plate on the top of the buffer plate, a top plate on the top of the movable plate, a first mounting groove arrayed on the surface of both the top plate and the movable plate, a second mounting groove on both sides of the middle of the first mounting groove on the surface of the top plate, a threaded column installed in the middle of the first mounting groove of the movable plate, a first rotating shaft mirrored on both sides of the threaded column, a second rotating shaft arrayed on the side of the movable plate, a sleeve in the middle of the bottom surface of the buffer plate, and a screw rod inside the sleeve.

[0006] Preferably, the two legs are set at both ends of the tank body and welded to the tank body, the manhole is integrally formed with the tank body, the liquid inlet pipe is set on the side of the tank body and one end of the liquid inlet pipe penetrates into the interior of the tank body, and the liquid inlet pipe is welded to the tank body.

[0007] Preferably, the defoaming net, the defoamer, and the buffer plate are all installed inside the tank, with the buffer plate located inside the tank near the inlet pipe. The defoaming net and the defoamer are bolted to the inner wall of the tank.

[0008] Preferably, the connecting frame is integrally formed with the buffer plate, and the connecting frame is bolted to the inner wall of the tank. The movable plate is inserted into the top surface of the buffer plate, and the top plate is welded to the buffer plate. The movable plate is positioned between the buffer plate and the top plate.

[0009] Preferably, the first mounting grooves on the surfaces of the movable plate and the top plate correspond one-to-one, and the threaded post is inserted into the first mounting grooves on the movable plate and the top plate. The first rotating shafts on both sides of the threaded post are integrally formed with the threaded post, and the threaded posts on both sides of the first rotating shaft are installed in the second mounting grooves on both sides of the first mounting groove of the top plate.

[0010] Preferably, the second rotation axes arranged in a longitudinal array on the side of the movable plate all pass through the first mounting groove and threaded post arranged in a transverse direction on the surface of the movable plate.

[0011] Preferably, the sleeve and the buffer plate are integrally formed, and one end of the screw installed in the sleeve abuts against the bottom surface of the movable plate installed on the top surface of the buffer plate.

[0012] Beneficial effects

[0013] In this invention, when a gas-liquid mixture is pumped into the tank through the inlet pipe and impacts the surface of the buffer plate, the threaded columns form a series of obstacles on the buffer plate. The gas-liquid mixture experiences strong turbulence upon impacting the buffer plate. This turbulence destabilizes the gas-liquid interface, making it easier for air bubbles in the liquid to escape. The shape and arrangement of the threaded columns exacerbate this turbulence effect because the fluid generates complex eddies and shear forces as it flows around the threaded columns, separating fine droplets entrained in the gas and improving the efficiency of subsequent processing steps. This overcomes the limitation of gas-liquid separation in buffer plates. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 For the present utility model Figure 2 Sectional view at point AA;

[0017] Figure 4 This is a partial isometric drawing of the present invention;

[0018] Figure 5 This is a partial perspective view of the present invention;

[0019] Figure 6 This is a partial part drawing of the present invention;

[0020] Figure 7 For the present utility model Figure 6 Sectional view at BB;

[0021] Figure 8 For the present utility model Figure 6 Sectional view at CC.

[0022] Legend:

[0023] 1. Tank body; 2. Legs; 3. Inlet pipe; 4. Drain port; 5. Defoaming screen; 6. Manhole; 7. Foam trap; 8. Connecting frame; 9. Buffer plate; 10. Moving plate; 11. Top plate; 12. First mounting slot; 13. Second mounting slot; 14. Threaded column; 15. First rotating shaft; 16. Second rotating shaft; 17. Sleeve; 18. Screw. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0027] Reference Figure 1-8A buffer tank with gas-liquid separation function includes a tank body 1, an inlet pipe 3 on one side of the tank body 1, two legs 2 on the bottom surface of the tank body 1, a drain port 4 between the two legs 2, a manhole 6 on the top surface of the tank body 1, a defoaming screen 5 inside the tank body 1, a defoamer 7 on one side of the defoaming screen 5, a buffer plate 9 on the side of the defoaming screen 5 away from the defoamer 7, a connecting frame 8 on the surface of the buffer plate 9, a movable plate 10 on the top of the buffer plate 9, a top plate 11 on the top of the movable plate 10, and first mounting grooves 12 arrayed on the surfaces of both the top plate 11 and the movable plate 10. The first mounting groove 12 on the surface of plate 11 has a second mounting groove 13 on both sides. A threaded post 14 is installed in the middle of the first mounting groove 12 of the movable plate 10. A first rotating shaft 15 is mirror-imagely provided on both sides of the threaded post 14. A second rotating shaft 16 is arrayed on the side of the movable plate 10. A sleeve 17 is provided in the middle of the bottom surface of the buffer plate 9. A screw 18 is provided inside the sleeve 17. Two legs 2 are provided at both ends of the tank body 1 and are welded to the tank body 1. The manhole 6 is integrally formed with the tank body 1. The liquid inlet pipe 3 is provided on the side of the tank body 1, and one end of the liquid inlet pipe 3 penetrates into the interior of the tank body 1. The inlet pipe 3 is welded to the tank body 1. The defoaming screen 5, the mist trap 7, and the buffer plate 9 are all installed inside the tank body 1, with the buffer plate 9 positioned inside the tank body 1 near the inlet pipe 3. The defoaming screen 5 and the mist trap 7 are bolted to the inner wall of the tank body 1. The connecting frame 8 is integrally formed with the buffer plate 9 and bolted to the inner wall of the tank body 1. The movable plate 10 is inserted into the top surface of the buffer plate 9, and the top plate 11 is welded to the buffer plate 9. The movable plate 10 is positioned between the buffer plate 9 and the top plate 11. The first mounting grooves 12 on the surfaces of the movable plate 10 and the top plate 11 correspond one-to-one, and the threaded post 1... 4 is inserted into the first mounting groove 12 of the movable plate 10 and the top plate 11. The first rotating shaft 15 on both sides of the threaded column 14 is integrally formed with the threaded column 14, and the threaded columns 14 on both sides of the first rotating shaft 15 are installed in the second mounting groove 13 on both sides of the first mounting groove 12 of the top plate 11. The second rotating shaft 16 arranged longitudinally on the side of the movable plate 10 passes through the first mounting groove 12 and the threaded column 14 arranged transversely on the surface of the movable plate 10. The sleeve 17 is integrally formed with the buffer plate 9, and one end of the screw 18 installed in the sleeve 17 abuts against the bottom surface of the movable plate 10 installed on the top surface of the buffer plate 9.

[0028] It should be noted that the movable plate 10 is inserted into the top surface of the buffer plate 9, and the top plate 11 is set on the top of the movable plate 10 and welded to the buffer plate 9. The top end of the movable plate 10 extends through the buffer plate 9, allowing the movable plate 10 to move on the buffer plate 9. One end of the screw 18 inside the sleeve 17 on the bottom surface of the buffer plate 9 abuts against the bottom surface of the movable plate 10. When the screw 18 is rotated, the rotational motion of the screw 18 is converted into linear motion, causing the screw 18 to move up and down. When the screw 18 moves upward, it will push the movable plate 10 on the top of the buffer plate 9 upward. The first mounting grooves 12 on the top surfaces of the movable plate 10 and the top plate 11 correspond one-to-one. The threaded post 14 is inserted into the two first mounting grooves 12, and the first rotating shafts 15 on both sides of the threaded post 14 are installed on the two first mounting grooves 12 on the top surface of the top plate 11. The threaded post 14 is fixed in the first mounting groove 12 of the moving plate 10 by the second rotating shaft 16 through the side of the second mounting groove 13. The end of the second rotating shaft 16 is fixed with a nut to prevent it from falling off. When the moving plate 10 moves, it will drive the threaded post 14 fixed in the first mounting groove 12 on the top surface of the moving plate 10 to move. Since the first rotating shafts 15 on both sides of the threaded post 14 are installed in the second mounting groove 13 of the top plate 11, when the moving plate 10 drives the bottom of the threaded post 14 to move, the threaded post 14 will rotate through the first rotating shaft 15, thereby adjusting the angle of the threaded post 14. The threaded post 14 with different angles can adapt to gas-liquid mixtures with different hydraulic flow rates.

[0029] Specifically, the connecting frame 8 is integrally formed with the buffer plate 9 and is installed inside the tank 1 with bolts. This design provides a solid support foundation for the entire buffer plate 9 device. When the gas-liquid mixture impacts the buffer plate 9, it can effectively disperse and withstand the impact force, ensuring that the buffer plate 9 is stably fixed in the predetermined position inside the tank 1, so that the subsequent gas-liquid separation process can proceed in an orderly manner. The threaded column 14 and the first rotating shaft 15 on both sides cooperate with the first mounting groove 12 and the second mounting groove 13 on the moving plate 10 and the top plate 11. When the gas-liquid mixture impacts the buffer plate 9, the fluid flow path is changed and strong disturbance is generated due to the presence of the threaded column 14. The liquid forms a vortex after colliding with the threaded column 14 due to inertia, increasing the shear force inside the liquid and causing bubbles to escape. Before use, the angle of the threaded column 14 can be flexibly changed according to the different hydraulic flow rates required for the gas-liquid mixture. It enters the interior of the tank 1 through the manhole 6 and rotates the screw 18 of the buffer plate 9. When the screw 18 is rotated, the screw 18 converts the rotational motion into linear motion within the sleeve 17, thereby pushing the moving plate 10 to move up or down. Since the threaded column 14 is connected to the second mounting groove 13 of the top plate 11 through the first rotating shaft 15 and its bottom end is fixed in the first mounting groove 12 of the moving plate 10 and penetrated by the second rotating shaft 16, when the moving plate 10 moves, it will drive the bottom end of the threaded column 14 to move synchronously. Based on the connection relationship between the threaded column 14 and the top plate 11, during the process of the moving plate 10 driving the bottom end of the threaded column 14 to move, the threaded column 14 will rotate around the first rotating shaft 15, thereby realizing the angle adjustment. In this way, the angle of the threaded column 14 can be flexibly adjusted according to the different hydraulic flow rates of the gas-liquid mixture. When the gas-liquid mixture enters the tank 1 from the inlet pipe 3 and impacts the buffer plate 9, different angles of the threaded column 14 will have different effects on the fluid. For gas-liquid mixtures with high hydraulic flow rates, the threaded column 14 can be adjusted to a larger tilt angle to create a stronger obstruction and turbulence effect on the fluid. When the liquid impacts the threaded column 14, strong eddies and shear forces are generated due to inertia and angle changes, causing bubbles in the liquid to escape quickly. At the same time, liquid droplets entrained in the gas are also more easily separated. For gas-liquid mixtures with low hydraulic flow rates, the tilt angle of the threaded column 14 can be appropriately reduced to decrease the resistance to the fluid, allowing the gas-liquid mixture to pass through the buffer plate 9 more smoothly. Gas-liquid separation is achieved under relatively mild turbulence conditions, avoiding excessive pressure loss and energy consumption. Specific Implementation Example 2:

[0031] Reference Figure 1-8A buffer tank with gas-liquid separation function is further based on the basic structure in Specific Embodiment 1. The working principle of the buffer tank is as follows: the gas-liquid mixture first enters the tank body 1 through the liquid inlet pipe 3. One end of the liquid inlet pipe 3 penetrates the tank body 1 and is firmly welded to ensure the stability and sealing of the feed. After entering the tank body 1, the gas-liquid mixture will first come into contact with the buffer plate 9. Because the buffer plate 9 is bolted to the inner wall of the tank 1 and is integrally formed with the connecting frame 8, it can stably withstand gas-liquid impact, reducing the direct impact of liquid on the tank 1. The gas-liquid mixture after preliminary treatment by the buffer plate 9 will fall into the interior of the tank 1 and flow inside. Then it will pass through the defoaming net 5 and the mist trap 7. The defoaming net 5 can further intercept the fine droplets remaining in the gas. Through its special mesh structure, the droplets will agglomerate and drip when they collide with the net wires, further purifying the gas. The mist trap 7 uses its special internal structure or material to capture and collect extremely small droplets in the gas, ensuring that the gas discharged from the top of the tank 1 is as pure as possible. The drain port 4 on the bottom of the tank 1 is used to discharge the separated liquid, facilitating the collection and subsequent treatment of the liquid. The two legs 2 at the bottom of the tank 1 provide support for the entire device. Providing stable support, the bracket 2 is welded to the tank body 1 to ensure the structural integrity. The manhole 6 on the top surface of the tank body 1 facilitates personnel to inspect, maintain, and clean the inside of the tank body 1. Its integral molding with the tank body 1 ensures the sealing and overall strength of the tank body 1. The tank body 1, bracket 2, inlet pipe 3, outlet 4, defoaming screen 5, manhole 6, and defoamer 7 are all labeled components. It should be noted that the labeled components are existing technology and are not the focus of protection of this utility model, so they do not need to be described in detail. Other labeled components such as liquid level sensor, safety valve, and pressure sensor are usually provided on the buffer tank. The liquid level sensor can detect the liquid level in the buffer tank in real time to prevent liquid overflow or drying out. The safety valve is used for overpressure protection of the tank body 1 to maintain the stable operation of the tank body 1 maintenance system. The pressure sensor can monitor the pressure changes in the buffer tank in real time.

[0032] In summary:

[0033] 1. When the gas-liquid mixture is pumped into the tank 1 from the inlet pipe 3 and impacts the surface of the buffer plate 9, the threaded columns 14 form a series of obstacles on the buffer plate 9. The gas-liquid mixture experiences strong turbulence upon impacting the buffer plate 9. This turbulence destabilizes the gas-liquid interface, making it easier for bubbles in the liquid to escape. The shape and arrangement of the threaded columns 14 exacerbate this turbulence effect because the fluid generates complex eddies and shear forces as it bypasses the threaded columns 14, separating the fine droplets entrained in the gas and improving the efficiency of subsequent processing steps. This overcomes the limitation of gas-liquid separation in the buffer plate 9.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A buffer tank with gas-liquid separation function, comprising a tank body (1), characterized in that: The tank (1) has an inlet pipe (3) on one side, two legs (2) on the bottom surface of the tank (1), a drain port (4) in the middle of the two legs (2), a manhole (6) on the top surface of the tank (1), a defoaming screen (5) inside the tank (1), a defoaming catcher (7) on one side of the defoaming screen (5), a buffer plate (9) on the side of the defoaming screen (5) away from the defoaming catcher (7), a connecting frame (8) on the surface of the buffer plate (9), a movable plate (10) on the top of the buffer plate (9), and a top plate (1) on the top of the movable plate (10). 1) The surfaces of the top plate (11) and the movable plate (10) are provided with arrays of first mounting grooves (12). The top plate (11) is provided with second mounting grooves (13) on both sides of the middle of the first mounting groove (12). The movable plate (10) is provided with threaded post (14) in the middle of the first mounting groove (12). The threaded post (14) is provided with mirror images of the two sides of the first rotating shaft (15). The movable plate (10) is provided with arrays of second rotating shafts (16) on the side. The bottom surface of the buffer plate (9) is provided with a sleeve (17). The sleeve (17) is provided with a screw (18) inside.

2. The buffer tank with gas-liquid separation function according to claim 1, characterized in that: Two legs (2) are set at both ends of the tank (1) and the legs (2) are welded to the tank (1). The manhole (6) is integrally formed with the tank (1). The liquid inlet pipe (3) is set on the side of the tank (1) and one end of the liquid inlet pipe (3) penetrates into the interior of the tank (1). The liquid inlet pipe (3) is welded to the tank (1).

3. The buffer tank with gas-liquid separation function according to claim 1, characterized in that: The defoaming net (5), the defoamer (7) and the buffer plate (9) are all installed inside the tank (1), and the buffer plate (9) is located inside the tank (1) near the liquid inlet pipe (3). The defoaming net (5) and the defoamer (7) are bolted to the inner wall of the tank (1).

4. The buffer tank with gas-liquid separation function according to claim 1, characterized in that: The connecting frame (8) is integrally formed with the buffer plate (9), and the connecting frame (8) is bolted to the inner wall of the tank (1). The movable plate (10) is inserted into the top surface of the buffer plate (9), and the top plate (11) is welded to the buffer plate (9). The movable plate (10) is located between the buffer plate (9) and the top plate (11).

5. A buffer tank with gas-liquid separation function according to claim 1, characterized in that: The first mounting grooves (12) on the surfaces of the movable plate (10) and the top plate (11) correspond one-to-one, and the threaded post (14) is inserted into the first mounting groove (12) of the movable plate (10) and the top plate (11). The first rotating shafts (15) on both sides of the threaded post (14) are integrally formed with the threaded post (14), and the threaded posts (14) on both sides of the first rotating shaft (15) are all installed in the second mounting grooves (13) on both sides of the first mounting groove (12) of the top plate (11).

6. A buffer tank with gas-liquid separation function according to claim 1, characterized in that: The second rotating shafts (16) arranged longitudinally on the side of the movable plate (10) all pass through the first mounting groove (12) and the threaded post (14) arranged laterally on the surface of the movable plate (10).

7. A buffer tank with gas-liquid separation function according to claim 1, characterized in that: The sleeve (17) is integrally formed with the buffer plate (9), and one end of the screw (18) installed in the sleeve (17) abuts against the bottom surface of the movable plate (10) installed on the top surface of the buffer plate (9).

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