High efficiency tray cap cover

Abstract

The utility model discloses a kind of high-efficiency tray cap cover, belong to tray cap cover technical field, its technical scheme main points include cap cover body, the inside of cap cover body is provided with gas phase pipe, the inside of cap cover body is provided with inclined hole dispersion mechanism, the bottom of inclined hole dispersion mechanism is provided with taper hole dispersion mechanism;The taper hole dispersion mechanism includes several first fixed column, several taper holes and first fixed disc, the side of first fixed column close to first fixed disc is fixedly connected with first fixed disc, the side of first fixed column close to cap cover body inner wall is fixedly connected with the inner wall of cap cover body, the taper hole is set in the inside of first fixed disc, the taper hole is set as upper small lower big, solve the single-layer aperture structure of part cap cover in existing, gas and liquid contact time is short, contact area is limited, lead to mass transfer efficiency is low, difficult to meet the problem of high-precision separation demand.

Description

Technical Field

[0001] This utility model relates to the field of tray cap technology, and in particular to a high-efficiency tray cap. Background Technology

[0002] In distillation and absorption towers in chemical and petroleum refining industries, the tray cap is a core component for achieving gas-liquid mass transfer separation. Its main function is to guide the gas from the lower tray upwards while allowing the liquid to enter the cap and fully contact the gas, thus completing the separation process through heat and mass exchange.

[0003] Some existing caps use a single-layer open structure, which results in short gas-liquid contact time and limited contact area, leading to low mass transfer efficiency and making it difficult to meet the requirements of high-precision separation.

[0004] To address this, a high-efficiency tower tray cap is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency tray cap that can solve the problem that some existing caps adopt a single-layer open structure, resulting in short gas-liquid contact time and limited contact area, leading to low mass transfer efficiency and difficulty in meeting the requirements of high-precision separation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency tray cap, comprising a cap body, a gas phase tube disposed inside the cap body, an inclined hole dispersion mechanism disposed inside the cap body, and a conical hole dispersion mechanism disposed at the bottom of the inclined hole dispersion mechanism;

[0007] The conical hole dispersion mechanism includes several first fixed posts, several conical holes, and a first fixed plate. The side of the first fixed post near the first fixed plate is fixedly connected to the first fixed plate, and the side of the first fixed post near the inner wall of the cap body is fixedly connected to the inner wall of the cap body. The conical holes are opened inside the first fixed plate and are arranged with a smaller top and a larger bottom.

[0008] Preferably, the oblique hole dispersing mechanism includes a second fixed plate, a plurality of second fixed posts and a plurality of oblique holes. The oblique holes are opened inside the second fixed plate. The side of the second fixed post near the second fixed plate is fixedly connected to the second fixed plate, and the side of the second fixed post near the inner wall of the cap body is fixedly connected to the inner wall of the cap body.

[0009] Preferably, the gas phase tube is provided with an installation column inside, and a connecting column is fixedly connected to the surface of the installation column. The number of connecting columns is three and they are evenly distributed on the surface of the installation column. The side of the connecting column near the inner wall of the gas phase tube is fixedly connected to the inner wall of the gas phase tube.

[0010] Preferably, the first fixing plate and the second fixing plate are both provided with a first through hole, the top of the cap body is provided with a second through hole, and the mounting post passes through the first through hole and the second through hole in sequence and extends to the outside of the cap body.

[0011] Preferably, the surface of the mounting post is threaded with two first screws and a second screw, the top of the second screw is in close contact with the top of the inner wall of the cap body, the bottom of the bottom first screw is in close contact with the top of the cap body, and the surface of the top first screw is in close contact with the surface of the bottom first screw.

[0012] Preferably, the inside of the cap body is provided with a number of drainage holes, which are evenly distributed inside the cap body.

[0013] Preferably, the material of the cap body is duplex stainless steel and has undergone electrolytic polishing treatment.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application uses a cone-shaped dispersion mechanism to accelerate the gas flow rate through the upper small and lower large cone-shaped holes on the first fixed plate, which impact the flowing liquid to form fine droplets, thereby achieving preliminary gas-liquid mixing and increasing the contact area;

[0016] 2. This application sets up an inclined hole dispersion mechanism, which changes the gas-liquid flow direction by means of the inclined holes on the second fixed plate, forming a turbulent flow state, prolonging the gas-liquid contact time, further breaking up and redistributing the droplets, making the gas-liquid mixture more complete and improving the mass transfer efficiency. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the high-efficiency tower tray cap of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the connection between the gas phase pipe and the connecting column in this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the hat cover body in this utility model;

[0020] Figure 4 This is a perspective sectional view of the first and second fixed disks in this utility model;

[0021] Figure 5 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0022] In the figure, 1. Cap body; 2. Mounting post; 3. Discharge hole; 4. Gas phase pipe; 5. First screw; 6. Second screw; 7. Connecting post; 8. Inclined hole dispersion mechanism; 801. Second fixing plate; 802. Second fixing post; 803. Inclined hole; 9. Conical hole dispersion mechanism; 901. First fixing post; 902. Conical hole; 903. First fixing plate; 10. Second through hole; 11. First through hole. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A high-efficiency tray cap includes a cap body 1, a gas phase pipe 4 is provided inside the cap body 1, an inclined hole dispersion mechanism 8 is provided inside the cap body 1, and a conical hole dispersion mechanism 9 is provided at the bottom of the inclined hole dispersion mechanism 8.

[0026] The conical hole dispersion mechanism 9 includes several first fixed posts 901, several conical holes 902 and a first fixed plate 903. The side of the first fixed post 901 near the first fixed plate 903 is fixedly connected to the first fixed plate 903, and the side of the first fixed post 901 near the inner wall of the cap body 1 is fixedly connected to the inner wall of the cap body 1. The conical holes 902 are opened inside the first fixed plate 903, and the conical holes 902 are arranged with a smaller top and a larger bottom.

[0027] In this embodiment: the gas phase pipe 4 is welded to the external tower tray using existing welding technology. Gas enters the gas phase pipe 4 from below the tower tray and is stabilized by the mounting column 2 and connecting column 7. The gas flows upward and contacts the conical orifice dispersion mechanism 9. When passing through the conical orifice 902 (smaller at the top and larger at the bottom), the flow velocity increases, impacting the liquid flowing through the first fixed plate 903 to form fine droplets, achieving initial gas-liquid mixing. The gas-liquid mixture continues upward to the inclined orifice dispersion mechanism 8, where the flow direction changes through the inclined orifice 803, forming a turbulent flow state, prolonging the contact time and further breaking up the droplets. Finally, the gas rises to the upper tower tray through the discharge hole 3, and the liquid flows down along the inner wall of the cap body 1, with some flowing back to the tower tray through the discharge hole 3. The cap body 1 is made of duplex stainless steel and electrolytically polished to reduce adhesion. The first screw 5 and the second screw 6 ensure structural stability. This solves the problem that some existing caps use a single-layer open structure, resulting in short gas-liquid contact time and limited contact area, leading to low mass transfer efficiency and difficulty in meeting the requirements of high-precision separation.

[0028] Specifically, such as Figure 3 As shown, the oblique hole dispersion mechanism 8 includes a second fixed plate 801, a plurality of second fixed posts 802 and a plurality of oblique holes 803. The oblique holes 803 are opened inside the second fixed plate 801. The side of the second fixed post 802 near the second fixed plate 801 is fixedly connected to the second fixed plate 801, and the side of the second fixed post 802 near the inner wall of the cap body 1 is fixedly connected to the inner wall of the cap body 1.

[0029] Specifically, such as Figure 2 As shown, an installation column 2 is provided inside the gas phase tube 4, and a connecting column 7 is fixedly connected to the surface of the installation column 2. There are three connecting columns 7, which are evenly distributed on the surface of the installation column 2. The side of the connecting column 7 closest to the inner wall of the gas phase tube 4 is fixedly connected to the inner wall of the gas phase tube 4.

[0030] Specifically, such as Figure 3 and Figure 5 As shown, the first fixing plate 903 and the second fixing plate 801 are both provided with a first through hole 11, and the top of the cap body 1 is provided with a second through hole 10. The mounting post 2 passes through the first through hole 11 and the second through hole 10 in sequence and extends to the outside of the cap body 1.

[0031] In this embodiment: the oblique hole dispersion mechanism 8 is securely installed by the second fixed column 802. The oblique hole 803 can change the gas-liquid flow direction to enhance the mixing effect. The mounting column 2 and the connecting column 7 cooperate to form a stable support inside the gas phase pipe 4. Combined with the first through hole 11 and the second through hole 10, the precise positioning and coordinated operation of each component are realized, thereby improving the overall structural stability.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the surface of the mounting post 2 is threaded with two first screws 5 and a second screw 6. The top of the second screw 6 is in close contact with the top of the inner wall of the cap body 1, the bottom of the bottom first screw 5 is in close contact with the top of the cap body 1, and the surface of the top first screw 5 is in close contact with the surface of the bottom first screw 5.

[0033] Specifically, such as Figure 1 As shown, the inside of the hat body 1 is provided with a discharge hole 3, and the number of discharge holes 3 is several and they are evenly distributed inside the hat body 1.

[0034] Specifically, such as Figure 1 As shown, the hat body 1 is made of duplex stainless steel and has undergone electrolytic polishing treatment.

[0035] In this embodiment: the first screw 5 and the second screw 6 work together to firmly fix the mounting column 2 and the cap body 1, ensuring the stable operation of the dispersion mechanism. Multiple evenly distributed discharge holes 3 can efficiently separate and discharge gas and liquid, ensuring smooth circulation. The duplex stainless steel material combined with electrolytic polishing treatment improves corrosion resistance and strength while reducing surface adhesion, reducing impurity accumulation, and extending service life.

[0036] Working principle: By welding the gas phase tube 4 to the external tower tray using existing welding technology, the gas rises from below the tower tray and enters the gas phase tube 4. The gas phase tube 4 is structurally stable by fixing it with the mounting column 2 and the connecting column 7. After the gas gathers in the gas phase tube 4, it flows upward and first contacts the conical orifice dispersion mechanism 9. Since the first fixed plate 903 of the conical orifice dispersion mechanism 9 has a conical orifice 902 that is smaller at the top and larger at the bottom, the gas flow velocity is accelerated when it passes through the conical orifice 902. At the same time, it flows from the upper side of the tower tray into the cap body 1. The internal liquid flows downwards under gravity. As it flows through the first fixed disk 903, some of the liquid is impacted by the high-speed gas passing through the conical hole 902, breaking it into fine droplets that move upwards with the airflow. This achieves initial mixing and dispersion of the gas and liquid, increasing the gas-liquid contact area. Subsequently, the gas-liquid mixture continues to move upwards to the inclined hole dispersion mechanism 8. The inclined holes 803 on the second fixed disk 801 of the inclined hole dispersion mechanism 8 change the flow direction of the gas-liquid mixture as it passes through, creating a turbulent flow pattern and extending the gas-liquid contact time. During the contact time, the droplets are further broken up and redistributed, making the gas-liquid mixture more thorough and improving the mass transfer efficiency. After two dispersion and mixing processes, the gas-liquid mixture continues to move upward. Finally, the gas is discharged through the discharge hole 3 and rises to the upper tray, while the separated liquid flows downward along the inner wall of the cap body 1. Some of the liquid flows back to the tray through the discharge hole 3 inside the cap body 1, completing the gas-liquid separation and circulation. Throughout the process, the cap body 1 is made of duplex stainless steel and has undergone electrolytic polishing, resulting in a high surface smoothness, reducing the adhesion of liquid and impurities, and ensuring smooth gas-liquid flow. At the same time, the first screw 5 and the second screw 6 work together to achieve a stable connection between the mounting column 2 and the cap body 1, ensuring the structural stability of the conical hole dispersion mechanism 9 and the inclined hole dispersion mechanism 8 during operation. Through the synergistic effect of the two dispersion mechanisms with different structures, the problem of low mass transfer efficiency caused by the short gas-liquid contact time and limited contact area of ​​some existing caps with single-layer open hole structures is solved, making it difficult to meet the requirements of high-precision separation.

[0037] 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 high-efficiency tray cap, comprising a cap body (1), characterized in that: The inside of the cap body (1) is provided with a gas phase tube (4), the inside of the cap body (1) is provided with an oblique hole dispersion mechanism (8), and the bottom of the oblique hole dispersion mechanism (8) is provided with a conical hole dispersion mechanism (9). The conical hole dispersion mechanism (9) includes several first fixed posts (901), several conical holes (902) and a first fixed plate (903). The side of the first fixed post (901) close to the first fixed plate (903) is fixedly connected to the first fixed plate (903). The side of the first fixed post (901) close to the inner wall of the cap body (1) is fixedly connected to the inner wall of the cap body (1). The conical holes (902) are opened inside the first fixed plate (903). The conical holes (902) are arranged with a smaller top and a larger bottom.

2. The high-efficiency tray cap according to claim 1, characterized in that: The oblique hole dispersion mechanism (8) includes a second fixed plate (801), a plurality of second fixed posts (802) and a plurality of oblique holes (803). The oblique holes (803) are opened inside the second fixed plate (801). The side of the second fixed post (802) close to the second fixed plate (801) is fixedly connected to the second fixed plate (801). The side of the second fixed post (802) close to the inner wall of the cap body (1) is fixedly connected to the inner wall of the cap body (1).

3. The high-efficiency tray cap according to claim 2, characterized in that: The gas phase tube (4) is provided with an installation column (2) inside. A connecting column (7) is fixedly connected to the surface of the installation column (2). There are three connecting columns (7) evenly distributed on the surface of the installation column (2). The side of the connecting column (7) closest to the inner wall of the gas phase tube (4) is fixedly connected to the inner wall of the gas phase tube (4).

4. The high-efficiency tray cap according to claim 3, characterized in that: The first fixing plate (903) and the second fixing plate (801) are both provided with a first through hole (11), and the top of the cap body (1) is provided with a second through hole (10). The mounting post (2) passes through the first through hole (11) and the second through hole (10) in sequence and extends to the outside of the cap body (1).

5. The high-efficiency tray cap according to claim 3, characterized in that: The mounting post (2) is threaded with two first screws (5) and a second screw (6). The top of the second screw (6) is in close contact with the top of the inner wall of the cap body (1), the bottom of the bottom first screw (5) is in close contact with the top of the cap body (1), and the surface of the top first screw (5) is in close contact with the surface of the bottom first screw (5).

6. The high-efficiency tray cap according to claim 1, characterized in that: The inside of the cap body (1) is provided with a discharge hole (3), and the number of discharge holes (3) is several and they are evenly distributed inside the cap body (1).

7. The high-efficiency tray cap according to claim 1, characterized in that: The hat body (1) is made of duplex stainless steel and has undergone electrolytic polishing.

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