Louver cap cover tray

Abstract

The utility model discloses a shutter cap hood tray, which belongs to the technical field of chemical engineering, and adopts the technical scheme that the shutter cap hood tray comprises a retention tray, a riser tube is fixedly connected to the inner side of the retention tray, a downcomer is fixedly connected to the bottom of the retention tray, and a shutter shunting mechanism is movably connected to the top of the retention tray. A flow adjusting mechanism is movably connected to the inner side of the downcomer, the gas-liquid interaction efficiency and the separation effect can be remarkably improved through a dynamic louver blade structure, the gas retention time is prolonged through a multi-stage retention space formed by a semispherical tower cover and a liquid layer, and bubbles fully react in the liquid layer; the louvre blades driven by the servo motor swing back and forth to refine an airflow path, increase the gas-liquid contact area and strengthen mass transfer; thirdly, dead angles, prone to scale deposition, of a static structure are eliminated through dynamic swing, and meanwhile impurity accumulation is restrained through shearing force generated by mechanical movement; finally, the maintenance cost is reduced while the separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering technology, and in particular to a louvered cap tower tray. Background Technology

[0002] The cap tray design originates from the inefficiency and limitations of traditional bubble cap trays. By optimizing the structure, it improves mass transfer performance. Its core adopts an umbrella / bell-shaped cap design, and the gas is horizontally dispersed through the riser tube and the toothed / jet holes, which enhances gas-liquid contact and reduces mist entrainment. The double-layer vertical sieve plate structure increases the processing capacity by 50%-80% compared to traditional methods, reduces pressure drop by 45%, and has strong anti-clogging ability. It is suitable for solid media or high fluctuation conditions. Modern design combined with fluid dynamics optimization, through multi-layer dispersion and horizontal jet technology, further improves efficiency and operational flexibility, making it the preferred solution in high-pressure and high-vacuum separation fields.

[0003] In the existing technology, the trays of the water washing tower in the low temperature zone are herringbone trays. The water and product gas often do not mix sufficiently. Moreover, the herringbone trays have few outlets. When oily substances mix with catalyst powder, they will inevitably solidify and precipitate to form scale, which will lead to the clogging of the water washing tower.

[0004] To address the aforementioned issues, an existing patent (publication number: CN209254175U) proposes a louvered cap tray. The cap is a cylindrical shape with openings at both ends, positioned between the upper and lower trays. The lower opening of the cap matches the shape of the openings on the lower tray surface and is fixedly connected to the lower tray, allowing product gas to enter. Several perforations for water entry are provided at the connection between the cap and the lower tray. Four to six rows of side holes are arranged circumferentially on the side of the cap. When product gas and water enter the cap, the product gas pulls the water high, causing it to impact between the cap and the upper tray. Under pressure, the mixed product gas and water are ejected through the side holes. The advantages and beneficial effects of this invention are: simple structure, good water washing effect, and effective solution to the problem of water washing tower blockage in production.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, in the existing technologies and the examples described above, the gas-liquid interaction is poor, the gas-liquid residence time is short, resulting in poor gas-liquid separation. Furthermore, when dealing with viscous gases or during long-term use, the gas flow splitting structure is prone to accumulating impurities and being affected by viscous gases.

[0006] To address this, a louvered cap-shaped tower plate is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a louvered cap tray that can solve the problems of low gas-liquid separation efficiency, impurity accumulation, and viscous gas blockage in existing systems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a louvered cap tray, comprising a stagnant tray, wherein a riser pipe is fixedly connected to the inner side of the stagnant tray, a downcomer pipe is fixedly connected to the bottom of the stagnant tray, a louvered flow divider mechanism is movably connected to the top of the stagnant tray, and a flow regulating mechanism is movably connected to the inner side of the downcomer.

[0009] The louvered diversion mechanism includes a hemispherical tower cover welded to the top of the retention tray. A support frame is bolted to the inner side of the hemispherical tower cover. Louvers are rotatably connected to the inner side of the support frame. A reciprocating swing assembly is movably connected to the outer side of the louvers. The reciprocating swing assembly is movably connected to the outer side of the support frame.

[0010] Preferably, the flow regulating mechanism includes a flow limiting plate rotatably connected to the inside of the downcomer, and a telescopic rod is rotatably connected to the top of the flow limiting plate.

[0011] Preferably, the telescopic rod is rotatably connected to the inner side of the downcomer, and a compression spring is fixedly connected to the outer side of the telescopic rod.

[0012] Preferably, a linear motor is fixedly connected to the inner side of the downcomer, the linear motor is located on the top of the flow limiting plate, and a pressing protrusion is fixedly connected to the output end of the linear motor.

[0013] Preferably, the reciprocating swing assembly includes a servo motor fixedly connected to the rear side of the support frame, a drive tooth fixedly connected to the output end of the servo motor, a linkage gear movably connected to the front side of the drive tooth, and the linkage gear rotatably connected to the outside of the support frame.

[0014] Preferably, a torsion spring is fixedly connected to the bottom of the outer side of the linkage gear, the torsion spring is fixedly connected to the outer side of the support frame, a gear set is movably connected to the front side of the linkage gear, the gear set is movably connected to the outer side of the louver, and the gear set is movably connected to the top of the inner side of the support frame.

[0015] Preferably, a gas-liquid separation hood is fixedly connected to the top of the downcomer.

[0016] Preferably, a liquid inlet pipe is fixedly connected to the top of the hemispherical tower cover, and a liquid seal valve is fixedly connected to the bottom of the liquid inlet pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a louvered flow diversion mechanism, can significantly improve the gas-liquid interaction efficiency and separation effect through the dynamic louvered structure. The multi-stage retention space formed by the hemispherical tower cover and the liquid layer extends the gas residence time, allowing bubbles to fully react in the liquid layer. Secondly, the reciprocating oscillation of the louvers driven by the servo motor refines the airflow path, increases the gas-liquid contact area, and enhances mass transfer. Thirdly, the dynamic oscillation eliminates the dead corners where static structures are prone to fouling, making it difficult for viscous gases to adhere during flow. At the same time, the shearing force generated by the mechanical motion inhibits the accumulation of impurities. Ultimately, it improves separation efficiency while reducing maintenance costs.

[0019] 2. This application optimizes separation efficiency through a flow regulation mechanism, dynamic liquid layer control, and a forced drainage system: gravity-driven flow-limiting plates automatically balance the liquid layer heights, stabilizing the gas-liquid interface; a spring-loaded telescopic rod reset mechanism reduces mechanical wear, maintaining dynamic liquid balance without external power; and a linear motor forces the drainage of residual liquid, eliminating corrosion risks and bacterial growth caused by liquid accumulation, thus extending equipment lifespan. This solves the problems of uneven liquid layer height affecting gas-liquid contact area and residual liquid causing equipment corrosion. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the louvered cap tower tray of this utility model;

[0021] Figure 2 This is a diagram showing the internal structure of the louvered cap tower plate of this utility model;

[0022] Figure 3 This is an overall structural diagram of the louvered flow divider mechanism of this utility model;

[0023] Figure 4 This is an overall structural diagram of the reciprocating oscillating component of this utility model;

[0024] Figure 5 This is an overall structural diagram of the flow regulating mechanism of this utility model.

[0025] In the diagram, 1. Retention tray; 2. Riser pipe; 3. Downcomer pipe; 4. Louvered flow divider mechanism; 41. Hemispherical tower cover; 42. Support frame; 43. Louvered blades; 44. Reciprocating oscillating assembly; 44a. Servo motor; 44b. Drive tooth; 44c. Linkage gear; 44d. Torsion spring; 44e. Gear set; 5. Flow regulating mechanism; 51. Flow limiting plate; 52. Telescopic rod; 53. Compression spring; 54. Linear motor; 55. Extrusion protrusion; 6. Gas-liquid separation hood; 7. Liquid inlet pipe; 8. Liquid seal valve. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A louvered cap tray includes a stagnation tray 1, a riser pipe 2 fixedly connected to the inner side of the stagnation tray 1, a downcomer pipe 3 fixedly connected to the bottom of the stagnation tray 1, a louvered flow divider mechanism 4 movably connected to the top of the stagnation tray 1, and a flow regulating mechanism 5 movably connected to the inner side of the downcomer pipe 3.

[0029] The louvered diversion mechanism 4 includes a hemispherical tower cover 41 welded to the top of the retention tower tray 1. A bearing frame 42 is bolted to the inner side of the hemispherical tower cover 41. Louvers 43 are rotatably connected to the inner side of the bearing frame 42. A reciprocating swing assembly 44 is movably connected to the outer side of the louvers 43. The reciprocating swing assembly 44 is movably connected to the outer side of the bearing frame 42.

[0030] In this embodiment: In separation equipment such as distillation towers and absorption towers, multiple sets of retention trays 1 are set as gas-liquid interaction retention structures. Multiple support frames 42 are bolted to the outside of the retention trays 1 with a hemispherical tower cover 41 welded to the top. Multiple sets of louvers 43 are installed on the inside of the support frames 42. The gas flow is guided by the riser pipe 2 inside the retention tray 1, passes through the gas-liquid separation cover 6 and enters the partition formed by the retention tray 1 and the hemispherical tower cover 41. There is a liquid layer formed by the reaction liquid inside the partition layer that is higher than the height of the riser pipe 2. The gas passes through the liquid layer in the form of bubbles to complete the exchange reaction and continues to rise. It is diverted back to the inside of the equipment by the louvers 43 in the support frame 42 outside the hemispherical tower cover 41. Separation is achieved through multiple rounds of retention interaction. The reciprocating oscillating component 44 drives the linkage gear 44c to rotate back and forth, causing the louvers 43 to oscillate, so as to achieve the effect of fine gas diversion, refinement of unit volume and avoidance of impurity accumulation and viscous gas influence.

[0031] Specifically, such as Figure 5 As shown, the flow regulating mechanism 5 includes a flow limiting plate 51 rotatably connected to the inside of the downcomer 3, and a telescopic rod 52 rotatably connected to the top of the flow limiting plate 51.

[0032] Specifically, such as Figure 5 As shown, the telescopic rod 52 is rotatably connected to the inner side of the downcomer 3, and a compression spring 53 is fixedly connected to the outer side of the telescopic rod 52.

[0033] Specifically, such as Figure 5As shown, a linear motor 54 is fixedly connected to the inner side of the downcomer 3. The linear motor 54 is located on the top of the flow limiting plate 51, and a pressing protrusion 55 is fixedly connected to the output end of the linear motor 54.

[0034] In this embodiment: when liquid is injected into the partition between the retention tray 1 and the hemispherical tower cover 41, it is injected through the liquid inlet pipe 7 at the top of the separation equipment. The liquid seal valve 8 controls the liquid inlet and seals against gas. The liquid enters the retention tray 1 structure in sequence according to height. It impacts the flow restrictor plate 51 through the downcomer 3 in the center of the retention tray 1. The impact force causes the flow restrictor plate 51 to rotate and compress the telescopic rod 52 and the compression spring 53. When the impact force is eliminated, the flow restrictor plate 51 resets and seals under the rebound action of the compression spring 53 and the telescopic rod 52. After the liquid layer reaches the preset height, liquid injection continues. When the gravity exceeds the bearing capacity of the telescopic rod 52 and the compression spring 53, the flow restrictor plate 51 flips again to discharge the excess liquid to the lower retention tray 1 structure, repeating to form a uniform liquid layer to control the flow rate. After the separation operation is completed, the linear motor 54 is started to move the bottom extrusion protrusion 55 downward, forcing the flow restrictor plate 51 to flip and discharge the accumulated liquid that is not enough to push it to flip, thus avoiding liquid stagnation.

[0035] Specifically, such as Figure 3 , Figure 4 As shown, the reciprocating swing assembly 44 includes a servo motor 44a fixedly connected to the rear side of the support frame 42. The output end of the servo motor 44a is fixedly connected to a drive tooth 44b. The front side of the drive tooth 44b is movably connected to a linkage gear 44c. The linkage gear 44c is rotatably connected to the outside of the support frame 42.

[0036] Specifically, such as Figure 3 , Figure 4 As shown, a torsion spring 44d is fixedly connected to the bottom of the outer side of the linkage gear 44c. The torsion spring 44d is fixedly connected to the outer side of the bearing frame 42. A gear set 44e is movably connected to the front side of the linkage gear 44c. The gear set 44e is movably connected to the outer side of the louver 43 and to the top of the inner side of the bearing frame 42.

[0037] In this embodiment: by activating the servo motor 44a built into the bottom of the support frame 42, the drive tooth 44b at its output end rotates. The drive tooth 44b has a half-tooth surface structure. When the tooth surface of the drive tooth 44b contacts the linkage gear 44c, the two rotate together and tighten the torsion spring 44d. When there is no tooth surface contact, the torsion spring 44d releases elastic potential energy to drive the linkage gear 44c to reset, realizing reciprocating rotation. The linkage gear 44c meshes with the internal gear at one end of the gear set 44e. The internal gear of the gear set 44e is connected to and meshes with the rotating shaft of the louver blade 43 and the inner wall of the support frame 42. Therefore, the reciprocating rotation of the linkage gear 44c will drive the louver blade 43 to swing back and forth, realizing fine gas diversion and refining the unit volume, avoiding the accumulation of impurities and the influence of viscous gas.

[0038] Specifically, such as Figure 2 As shown, a gas-liquid separation hood 6 is fixedly connected to the top of the downcomer 3.

[0039] Specifically, such as Figure 1 , Figure 2 As shown, the top of the hemispherical tower cover 41 is fixedly connected to the liquid inlet pipe 7, and the bottom of the liquid inlet pipe 7 is fixedly connected to the liquid seal valve 8.

[0040] In this embodiment: the gas-liquid separation hood 6 can prevent the liquid layer from entering through the riser pipe 2, and the liquid seal valve 8 can prevent the gas from being discharged through the liquid inlet pipe 7.

[0041] Working Principle: In separation equipment such as distillation columns and absorption columns, multiple sets of retention trays 1 are often installed as gas-liquid interaction retention structures to improve gas-liquid interaction reaction and extraction efficiency. The existing retention trays 1 have a hemispherical top cover 41 welded to the top. Multiple openings are provided on the outer side of the hemispherical cover 41, and multiple supporting frames 42 are bolted to it. Multiple sets of louvers 43 are located inside the supporting frames 42. After the gas flow enters the separation equipment, it is guided by the riser pipe 2 inside the retention tray 1, passes through the gas-liquid separation hood 6, and enters the partition formed by the retention tray 1 and the hemispherical cover 41. The partition contains a liquid layer formed by the reaction liquid, which is higher than the height of the riser pipe 2. When the gas passes through the liquid layer, it exchanges and reacts with the liquid in the form of bubbles, and then continues to rise. Next, the gas passes through the hemispherical cover 41. The louvers 43 inside the outer support frame 42 divert the flow back to the inside of the separation device. After multiple rounds of retention and interaction, the separation operation is completed. The louvers 43 are not statically fixed. The servo motor 44a built into the bottom of the support frame 42 is started, and the drive tooth 44b at its output end rotates. Half of the drive tooth 44b has a toothed surface and the other half has a toothless surface. When the toothed surface contacts the linkage gear 44c, the two rotate together. When the toothless surface contacts, the linkage is released. When the linkage gear 44c rotates, it will tighten the torsion spring 44d. After the linkage is released, the torsion spring 44d releases its elastic potential energy to reset it, realizing reciprocating rotation. The linkage gear 44c meshes with the internal gear at one end of the gear set 44e. Multiple gears in the gear set 44e interact with the louver 43 shaft and the support frame 42. The inner walls are connected and mesh with each other. Therefore, the reciprocating rotation of the linkage gear 44c will drive the louver 43 to oscillate back and forth, which will more finely separate the gas, refine the unit gas volume, and avoid the accumulation of impurities and the influence of viscous gases. In addition, when injecting liquid into the partition between the stagnation tray 1 and the hemispherical tower cover 41, it is injected from the top of the separation equipment through the liquid inlet pipe 7. The liquid enters the stagnation tray 1 structure in sequence according to height. The liquid seal valve 8 at the liquid inlet pipe 7 controls the liquid inlet and prevents gas emission. After the liquid falls to the top of the stagnation tray 1, it enters the downcomer 3 in the center of the stagnation tray 1 and impacts the flow restrictor 51 in the downcomer 3. Under the action of gravity, the flow restrictor 51 rotates and presses the telescopic rod 52 and the compression spring 53. When the impact force is eliminated, the liquid tends to accumulate and form a liquid layer. When the flow restrictor 51 is reset and sealed by the rebound action of the compression spring 53 and the telescopic rod 52, when the liquid level reaches the required height, liquid is added again. When the gravity exceeds the bearing capacity of the telescopic rod 52 and the compression spring 53, the flow restrictor 51 flips again, discharging the excess liquid to the bottom retention tray 1 structure, forming a liquid layer in the same way, ensuring that the liquid level of each layer is consistent, controlling the liquid flow rate and flow rate, and avoiding waste. After the separation operation is completed, the linear motor 54 is started, and the bottom pressing protrusion 55 moves down, forcing the flow restrictor 51 to flip, discharging the accumulated liquid that is insufficient to push the flow restrictor 51 to flip, preventing liquid from remaining in the equipment. By optimizing the liquid and gas paths, the gas-liquid interaction is enhanced, the gas-liquid retention time is extended, and the separation operation is promoted.

[0042] 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 louvered cap column comprising a holdup tray (1), characterized in that: The inner side of the retention tray (1) is fixedly connected with a rising pipe (2), the bottom of the retention tray (1) is fixedly connected with a downcomer (3), the top of the retention tray (1) is movably connected with a louver flow splitting mechanism (4), and the inner side of the downcomer (3) is movably connected with a flow adjusting mechanism (5). The louver flow splitting mechanism (4) comprises a hemispherical tower cover (41) welded on the top of the retention tray (1), the inner side of the hemispherical tower cover (41) is bolted with a bearing frame (42), the inner side of the bearing frame (42) is rotatably connected with a louver blade (43), the outer side of the louver blade (43) is movably connected with a reciprocating swing assembly (44), and the reciprocating swing assembly (44) is movably connected on the outer side of the bearing frame (42).

2. A louver cap tower tray according to claim 1, wherein: The flow adjusting mechanism (5) comprises a flow limiting plate (51) rotatably connected on the inner side of the downcomer (3), and the top of the flow limiting plate (51) is rotatably connected with a telescopic rod (52).

3. A louver cap tower tray according to claim 2, wherein: The telescopic rod (52) is rotatably connected on the inner side of the downcomer (3), and the outer side of the telescopic rod (52) is fixedly connected with a compression spring (53).

4. A louver cap tower tray according to claim 2, wherein: The inner side of the downcomer (3) is fixedly connected with a linear motor (54), the linear motor (54) is arranged on the top of the flow limiting plate (51), and the output end of the linear motor (54) is fixedly connected with a extrusion lug (55).

5. A louver cap tower as defined in claim 1, wherein: The reciprocating swing assembly (44) comprises a servo motor (44a) fixedly connected on the rear side of the bearing frame (42), the output end of the servo motor (44a) is fixedly connected with a driving residual tooth (44b), the front side of the driving residual tooth (44b) is movably connected with a linkage gear (44c), and the linkage gear (44c) is rotatably connected on the outer side of the bearing frame (42).

6. A louver cap tower tray according to claim 5, wherein: The bottom of the outer side of the linkage gear (44c) is fixedly connected with a torsional spring (44d), the torsional spring (44d) is fixedly connected on the outer side of the bearing frame (42), the front side of the linkage gear (44c) is movably connected with a gear set (44e), the gear set (44e) is movably connected on the outer side of the louver blade (43), and the gear set (44e) is movably connected on the top of the inner side of the bearing frame (42).

7. A louver cap tower as defined in claim 1, wherein: The top of the downcomer (3) is fixedly connected with a gas-liquid separation cover (6).

8. A louver cap tower tray according to claim 7, wherein: The top of the hemispherical tower cover (41) is fixedly connected with a liquid inlet pipe (7), and the bottom of the liquid inlet pipe (7) is fixedly connected with a liquid seal valve (8).

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