Groove disc type liquid distributor

Abstract

The utility model belongs to the technical field of liquid distributors, and mainly relates to a groove disc type liquid distributor which comprises a circular groove disc, a circulation groove and a plurality of parallel first-stage distribution grooves, the first-stage distribution grooves and the circulation groove are arranged on the same surface of the groove disc, and second-stage distribution grooves are correspondingly arranged on the upper portions of the first-stage distribution grooves. And communicating grooves are formed among the first-stage distribution grooves. The groove disc type liquid distributor further comprises an outer surrounding wall and inner surrounding walls, circulating ring grooves are formed between the outer surrounding wall and the first inner surrounding wall and between the outer surrounding wall and the second inner surrounding wall, and the circulating ring grooves are communicated with the circulating main groove. According to the liquid distributor disclosed by the utility model, the communicating grooves are formed among the first-stage distribution grooves, the outer surrounding wall and the inner surrounding wall are arranged, and the arc-shaped circulating ring groove is formed between the inner surrounding wall and the outer surrounding wall, so that liquid on the groove disc of the liquid distributor can be ensured to be redistributed along the circulating ring groove and the circulating branch grooves which are communicated with each other; and the liquid can be uniformly distributed on the distributor, and the wall flow effect caused by non-circulation of the liquid and non-uniform distribution of the liquid is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of liquid distributor technology, and mainly relates to a tray-type liquid distributor. Background Technology

[0002] Packed towers are crucial gas-liquid mass transfer devices in the production of trichlorosilane. Compared to plate towers, packed towers offer advantages such as higher efficiency, larger throughput, lower pressure drop, and smaller liquid holdup. They also excel in vacuum operation, separation of heat-sensitive systems, and energy conservation, making them widely used in petrochemical, metallurgical, and environmental protection industries.

[0003] To fully utilize the advantages of packed towers, high-performance liquid distributors and other internal components are essential, especially in large towers where the uniformity of liquid distribution significantly impacts the packing's performance. Production experience shows that various operational problems in industrial packed towers are often caused by improper distributor design. Any severe initial uneven distribution requires a packing height several times the tower diameter to correct.

[0004] Currently, commonly used liquid distributors in industrial applications include tube-type, orifice-type, and tray-type distributors. Among them, the tray-type liquid distributor is a widely used type, effectively preventing material entrainment, occupying less space compared to other distributors, and also possessing a collection function, serving as a redistributor. However, in actual operation, due to its complex support structure, it requires a high degree of flatness in the actual installation, and often results in uneven gas-liquid distribution. Uneven liquid flow near the perimeter of the chromatography vessel causes diffusion and tortuosity of the separation zone at the edges, generating a wall flow effect. The wall flow effect prevents sufficient gas-liquid contact and reaction within the column, affecting reaction efficiency and product quality. Therefore, there is a need to provide a liquid distributor that improves the uniformity of liquid distribution and reduces the wall flow effect. Utility Model Content

[0005] To solve the above problems, the technical solution of this utility model is achieved through the following means:

[0006] A tray-type liquid distributor includes a circular tray, a flow channel, and several parallel primary distribution channels. The primary distribution channels and the flow channels are arranged on the same surface of the tray, and a secondary distribution channel is correspondingly arranged above the primary distribution channel. The flow channel includes a main flow channel and a branch flow channel, which are connected. A connecting channel is provided between the primary distribution channels.

[0007] Furthermore, the grooved plate is provided with a number of through slots evenly distributed along its outer periphery.

[0008] Furthermore, the number of primary distribution grooves is even, the primary distribution grooves are symmetrically arranged vertically and horizontally along the diameter of the groove plate, the primary distribution groove is a cuboid groove, the inner wall of the groove is provided with a continuous V-shaped groove, and the upper part of the primary distribution groove is provided with a through hole.

[0009] Furthermore, the cross-section of the secondary distribution groove is V-shaped, and the included angle of the V-shape is 30° to 60°.

[0010] Furthermore, the tray-type liquid distributor also includes an outer wall and an inner wall. The outer wall is disposed around the outer perimeter of the tray and forms a circle around the tray. The inner wall includes a first inner wall and a second inner wall, which are arc-shaped walls.

[0011] Furthermore, the first inner wall and the second inner wall are connected to the main flow channel at their ends, and the first inner wall and the second inner wall are symmetrically distributed on the left and right sides with the main flow channel as the axis, and are connected to the outside of the primary distribution channels distributed on the left and right sides respectively.

[0012] Furthermore, a flow annular groove is provided between the outer perimeter wall and the first inner perimeter wall and the second inner perimeter wall, and the flow annular groove is connected to the main flow groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a connecting channel between the primary distribution channels, through which the liquid in the distributor can flow in each primary distribution channel, ensuring that the liquid distribution in each primary distribution channel is uniform and the liquid level is consistent, reducing the wall flow effect caused by the inability of liquid to flow and uneven liquid distribution.

[0015] 2. By setting an outer wall and an inner wall, and forming an arc-shaped flow ring groove between the inner wall and the outer wall, this utility model can ensure that the liquid on the liquid distributor tray can be redistributed along the interconnected flow ring groove and flow branch groove, ensuring that the liquid can be evenly distributed on the distributor, reducing the wall flow effect caused by the inability of liquid to flow and uneven liquid distribution, and improving the efficiency of the distributor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a tray-type liquid distributor according to Embodiment 1 of this utility model;

[0017] Figure 2 This is a side view of a tray-type liquid distributor according to Embodiment 1 of this utility model;

[0018] Figure 3 This is a top view of the primary distribution groove in Embodiment 1 of this utility model;

[0019] Figure 4This is a schematic diagram of the structure of a tray-type liquid distributor according to Embodiment 2 of this utility model;

[0020] Figure 5 This is a top view (excluding the secondary distribution tank) of a tray-type liquid distributor according to Embodiment 2 of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Tray, 2. Primary distribution trough, 3. Secondary distribution trough, 4. Connecting trough, 5. Outer wall, 6. First inner wall, 7. Second inner wall, 8. Slot, 9. Main flow trough, 10. Flow branch trough, 11. Flow ring trough, 12. V-shaped groove. Detailed Implementation

[0022] The present invention provides a tray-type liquid distributor in further detail below with reference to the accompanying drawings and specific implementation methods.

[0023] Example 1

[0024] The basics are as follows: Figure 1-3 As shown, this embodiment discloses a tray-type liquid distributor, which includes a tray 1, a primary distribution channel 2, a secondary distribution channel 3, and a connecting channel 4. The tray 1 is a circular disc design with a plurality of slots 8 evenly distributed along its outer circumference for the flow of gaseous and liquid substances within the tower. A flow channel is provided on the tray 1, including a main flow channel 9 and branch flow channels, wherein the main flow channel 9 is located at the center of the tray 1 and communicates with the primary distribution channel 2.

[0025] In this embodiment, there are 14 primary distribution channels 2. The 14 primary distribution channels 2 are fixed symmetrically on the tray 1 along the diameter of the tray 1, both vertically and horizontally, and are arranged parallel to each other. There are flow branch channels between each primary distribution channel 2.

[0026] In this embodiment, the primary distribution tank 2 is a cuboid groove with continuous V-shaped grooves 12 on its inner wall. This prevents the liquid to be distributed from adhering to the inner wall of the primary distribution tank 2. The upper part of the primary distribution tank 2 is provided with several through holes 8, which facilitates liquid redistribution.

[0027] In this embodiment, a connecting channel 4 is provided between the primary distribution channels 2 distributed on the left and right sides of the tray 1. The connecting channel 4 can redistribute the liquid in each primary distribution channel 2, so that the liquid volume in each primary distribution channel 2 is the same. In this embodiment, two connecting channels 4 are provided on each of the left and right sides, for a total of four connecting channels 4. More or fewer connecting channels 4 can be provided depending on the actual situation.

[0028] In this embodiment, a secondary distribution trough 3 is fixedly installed above the primary distribution trough 2 via a bracket (not shown in the figure), and each primary distribution trough 2 corresponds to one secondary distribution trough 3. The secondary distribution trough 3 has a V-shaped cross-section, and its included angle can be set to 30° to 60°. The V-shape can accelerate drainage and stabilize the drainage direction.

[0029] Example 2

[0030] The basics are as follows: Figure 4-5 As shown, this embodiment discloses a tray-type liquid distributor, which includes a tray 1, a primary distribution tank 2, a secondary distribution tank 3, and a connecting tank 4. The arrangement and connection relationship of the tray 1, the primary distribution tank 2, the secondary distribution tank 3, and the connecting tank 4 are the same as those in Embodiment 1.

[0031] In this embodiment, a tray-type liquid distributor further includes an outer wall 5 and an inner wall. The outer wall 5 is disposed around the outer perimeter of the tray 1 and forms a circle around the circumference of the tray 1. The height of the outer wall 5 is the same as that of the primary distribution trough 2. The inner wall includes a first inner wall 6 and a second inner wall 7, which are arc-shaped walls, with their ends connected to the main flow trough 9. The first inner wall 6 and the second inner wall 7 are symmetrically distributed on the left and right sides of the main flow trough 9 and are respectively connected to the outer sides of the primary distribution troughs 2 distributed on the left and right sides.

[0032] A flow annular groove 10 and a flow branch groove 11 are provided between the outer wall 5 and the first inner wall 6 and the second inner wall 7. The flow annular groove 10 and the flow branch groove 11 are connected to the main flow channel 9. The flow annular groove 10 and the flow branch groove 11 can collect the liquid generated by the wall flow effect and allow it to flow through the flow annular groove 10 and the flow branch groove 11 into the main flow channel 9 and the flow branch groove, thereby accelerating the redistribution of the liquid and improving the efficiency of the distributor and the gas-liquid distribution effect.

[0033] In summary, this invention provides a connecting channel 4 between the primary distribution channels 2. Through the connecting channel 4, the liquid in the distributor can flow through each primary distribution channel 2, ensuring uniform liquid distribution and consistent liquid level within each channel, thus reducing wall flow effects caused by impassable or uneven liquid distribution. Simultaneously, by providing an outer wall 5 and an inner wall, forming an arc-shaped flow ring channel 10 and flow branch channel 11 between the inner and outer walls 5, this invention ensures that the liquid on the distributor tray 1 can be redistributed along the interconnected flow ring channel 10 and flow branch channel 11, guaranteeing uniform liquid distribution on the distributor, reducing wall flow effects caused by impassable or uneven liquid distribution, and improving the distributor's efficiency.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tray-type liquid distributor, characterized in that: It includes a circular tray (1), a flow channel and several parallel primary distribution channels (2), the primary distribution channels (2) and the flow channel are arranged on the same surface of the tray (1), and a secondary distribution channel (3) is arranged on the upper part of the primary distribution channel (2); the flow channel includes a main flow channel (9) and a branch flow channel (10), the main flow channel (9) and the branch flow channel (10) are connected, and a connecting channel (4) is arranged between the primary distribution channels (2).

2. The tray-type liquid distributor according to claim 1, characterized in that: The grooved plate (1) has several through slots (8) evenly arranged along its outer periphery.

3. A tray-type liquid distributor according to claim 2, characterized in that: The number of primary distribution grooves (2) is even. The primary distribution grooves (2) are arranged symmetrically up and down and left and right along the diameter of the groove plate (1). The primary distribution groove (2) is a cuboid groove. The inner wall of the groove is provided with a continuous V-shaped groove (12). The upper part of the primary distribution groove (2) is provided with a through slot (8).

4. A tray-type liquid distributor according to claim 3, characterized in that: The cross-section of the secondary distribution groove (3) is V-shaped, and the included angle of the V-shape is 30° to 60°.

5. A tray-type liquid distributor according to claim 1, characterized in that: The tray-type liquid distributor also includes an outer wall (5) and an inner wall. The outer wall (5) is arranged around the outer periphery of the tray (1) and forms a circle around the tray (1). The inner wall includes a first inner wall (6) and a second inner wall (7), which are arc-shaped walls.

6. A tray-type liquid distributor according to claim 5, characterized in that: The first inner wall (6) and the second inner wall (7) are connected to the main flow channel at their ends. The first inner wall (6) and the second inner wall (7) are symmetrically distributed on the left and right with the main flow channel as the axis, and are connected to the outside of the first-level distribution channel (2) distributed on the left and right respectively.

7. A tray-type liquid distributor according to claim 5, characterized in that: A flow ring groove (11) is provided between the outer wall (5) and the first inner wall (6) and the second inner wall (7), and the flow ring groove (11) is connected to the main flow groove.

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