Tower bottom liquid collecting structure of rectifying tower

Abstract

A tower bottom liquid collecting structure of a rectifying tower is characterized in that a tension ring is arranged above the liquid collecting structure, expansion grooves are uniformly formed in the tension ring, threads are arranged on the outer side of the tension ring, a worker stretches the tension ring into a rectifying tower cylinder and holds a handle to rotate a shell, the expansion grooves are compressed and tightened, and the tension ring moves upwards in the rectifying tower cylinder; after rotation is stopped, deformation of the expansion groove is recovered, friction force is increased through the threads, the liquid collecting structure is fixed in the rectifying tower cylinder, the risk of gas-liquid leakage in the rectifying tower is reduced through the installation mode, meanwhile, an upper drainage body and a lower drainage body are arranged in the liquid collecting structure, a large amount of scoured liquid in the rectifying tower can be shared, and the rectifying tower is more stable. And the pressure caused by large liquid flow is reduced for a lower liquid outlet and subsequent gas-liquid treatment equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of bottom liquid collection structure of distillation column, and in particular to a bottom liquid collection structure of distillation column. Background Technology

[0002] Distillation is one of the most common operations for separating liquid mixtures. It involves direct contact between the gas and liquid phases, utilizing the difference in volatility of the components to allow the more volatile components to transfer from the liquid phase to the gas phase, thus achieving mass transfer between the two phases. The apparatus used for distillation is typically a distillation column. During distillation, the gas and liquid phases within the column are established by the vapor generated by the reboiler at the bottom and the reflux at the top. Its function is to separate substances with similar relative volatility through distillation. The distillation column utilizes the property that the components in a mixture have different volatility, i.e., different vapor pressures at the same temperature, to transfer lighter components from the liquid phase to the gas phase, while heavier components from the gas phase transfer to the liquid phase, thereby achieving separation. Liquid collectors are often used in distillation columns to collect the feed liquid. For example, Chinese utility model patent CN213253080U proposes a liquid collection structure at the bottom of a distillation column. The proposed liquid collection structure is located at the bottom of the distillation column. Since the end cap can be easily cleaned after disassembly, it has high stability. The end cap is located inside the outer cylinder, and the structure is relatively compact, which has high practical value.

[0003] Some problems still exist when using the above device. The device is installed on the outside of the bottom of the distillation column. During use, it is subjected to a large amount of gas and liquid scouring, which may cause the installation to be unstable and gas or liquid to leak. In some cases, the liquid collection device may even fall off, affecting the use of the distillation column. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a bottom liquid collection structure for a distillation column, characterized by comprising a shell structure, a support structure, an expansion structure, and a flow guiding structure. The expansion structure is installed above the shell structure, the flow guiding structure is installed inside the shell structure, and the support structure is installed on the outside of the shell structure.

[0005] The shell structure consists of an outer shell, a bottom plate, and a liquid outlet. The bottom plate is installed at the bottom of the outer shell, and the liquid outlet is located in the middle of the bottom plate.

[0006] Four sets of support structures are evenly installed around the outer perimeter of the outer shell.

[0007] The support structure consists of a handle, a short rod, a long rod, and a vertical rod. The inner side of the handle is installed on the top of the outer casing, the outer side of the handle is installed on the vertical rod, the middle section of the vertical rod is installed on the short rod, the other end of the short rod is installed on the outer casing, and the bottom end of the vertical rod is installed on the long rod, the other end of the long rod is installed on the outer casing.

[0008] The expansion structure consists of a tension ring, expansion grooves, and threads. The tension ring is installed on the top of the outer shell, and four expansion grooves are evenly distributed on the tension ring. Threads are provided on the outer side of the tension ring.

[0009] The flow guiding structure consists of an upper flow guide, a lower flow guide, a liquid guiding groove, a connecting rod A, and a connecting rod B. The upper flow guide is installed on the upper part of the inner side of the outer shell, and the lower flow guide is placed inside the upper flow guide. Connecting rod A is installed on one side of the lower flow guide, and the other end of connecting rod A is installed inside the outer shell. Connecting rod B is installed on the other side of the lower flow guide, and the other end of connecting rod B is installed inside the outer shell. The gap between the upper flow guide and the lower flow guide is the liquid guiding groove.

[0010] The beneficial effects of this utility model are:

[0011] This invention relates to a liquid collection structure at the bottom of a distillation column. A tension ring is installed above the liquid collection structure, with expansion grooves evenly distributed on the ring. Threads are provided on the outer side of the tension ring. When the operator inserts the tension ring into the distillation column body and rotates the outer shell by holding the handle, the expansion grooves are compressed and tightened. The tension ring moves upward inside the distillation column body. After rotation stops, the expansion grooves return to their original shape, and the threads increase friction, thus fixing the liquid collection structure inside the distillation column body. This installation method reduces the risk of gas-liquid leakage from inside the distillation column. Simultaneously, the liquid collection structure includes upper and lower guide fluids, which can distribute the large amount of flushing liquid in the distillation column, reducing pressure on the lower liquid outlet and subsequent gas-liquid processing equipment caused by large liquid flow rates. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the liquid collection structure at the bottom of a distillation column according to the present invention.

[0013] Figure 2 This is a schematic diagram of the overall structure of the liquid collection structure at the bottom of a distillation column according to the present invention.

[0014] Figure 3 This is a partial structural diagram of the liquid collection structure at the bottom of a distillation column according to the present invention;

[0015] As shown in the figure: 1. Outer shell, 2. Tensioning ring, 3. Expansion groove, 4. Upper fluid guide, 5. Lower fluid guide, 6. Liquid guide groove, 7. Base plate, 8. Liquid outlet, 9. Handle, 10. Short rod, 11. Long rod, 12. Vertical rod, 13. Thread, 14. Connecting rod A, 15. Connecting rod B. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example 1

[0019] like Figure 1 , Figure 2 As shown, a base plate 7 is installed at the bottom of the outer casing 1, with a liquid outlet hole 8 in the middle of the base plate 7. A tension ring 2 is installed on the top of the outer casing 1, with four expansion grooves 3 evenly distributed on the tension ring 2. A thread 13 is provided on the outer side of the tension ring 2. A handle 9 is installed on the outer side of the top of the outer casing 1, and a vertical rod 12 is installed on the outer side of the handle 9. A short rod 10 is installed in the middle of the vertical rod 12, and the other end of the short rod 10 is installed on the outer casing 1. A long rod 11 is installed at the bottom of the vertical rod 12, and the other end of the long rod 11 is installed on the outer casing 1. An upper guide fluid 4 is installed on the upper part of the inner side of the outer casing 1, and a lower guide fluid 5 is installed on the inner side of the upper guide fluid 4. The gap between the upper guide fluid 4 and the lower guide fluid 5 is a liquid guide groove 6. A connecting rod A14 is installed on one side of the lower guide fluid 5, and the other end of the connecting rod A14 is installed inside the outer casing 1. A connecting rod B15 is installed on the other side of the lower guide fluid 5, and the other end of the connecting rod B15 is installed inside the outer casing 1. Example 2

[0020] When using this utility model, insert the tension ring 2 into the bottom of the distillation column, hold the handle 5 and rotate the outer shell 1. The thread 13 increases the friction, and the tension ring 2 expands inside the distillation column to complete the fixation. The liquid in the distillation column flows in from the upper opening of the upper guide 4 along the inner wall of the upper guide 4, flows down along the outer edge of the lower guide 5 through the liquid guide groove 6, and then flows out through the liquid outlet 8 to proceed to the next operation.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bottom liquid collection structure for a distillation column, characterized in that... It consists of a shell structure, a support structure, an expansion structure, and a flow guiding structure. The expansion structure is installed on top of the shell structure, the flow guiding structure is installed inside the shell structure, and the support structure is installed on the outside of the shell structure.

2. The bottom liquid collection structure of a distillation column according to claim 1, characterized in that... The shell structure consists of an outer shell, a bottom plate, and a liquid outlet. The bottom plate is installed at the bottom of the outer shell, and the liquid outlet is opened in the middle of the bottom plate.

3. The bottom liquid collection structure of a distillation column according to claim 2, characterized in that... The support structure consists of a handle, a short rod, a long rod, and a vertical rod. The inner side of the handle is installed on the top of the outer shell, the outer side of the handle is installed on the vertical rod, the middle part of the vertical rod is installed on the short rod, the other end of the short rod is installed on the outer shell, the bottom end of the vertical rod is installed on the long rod, and the other end of the long rod is installed on the outer shell.

4. The bottom liquid collection structure of a distillation column according to claim 2, characterized in that... The expansion structure consists of a tension ring, expansion grooves, and threads. The tension ring is installed on the top of the outer shell. Four expansion grooves are evenly opened on the tension ring, and threads are provided on the outer side of the tension ring.

5. The bottom liquid collection structure of a distillation column according to claim 2, characterized in that... The flow guiding structure consists of an upper flow guide, a lower flow guide, a liquid guiding groove, a connecting rod A, and a connecting rod B. The upper flow guide is installed above the upper part of the inner side of the outer shell, and the lower flow guide is placed inside the upper flow guide. Connecting rod A is installed on one side of the lower flow guide, and the other end of connecting rod A is installed inside the outer shell. Connecting rod B is installed on the other side of the lower flow guide, and the other end of connecting rod B is installed inside the outer shell. The gap between the upper flow guide and the lower flow guide is the liquid guiding groove.

6. The bottom liquid collection structure of a distillation column according to claim 2, characterized in that... Four sets of support structures are evenly installed around the outer perimeter of the outer shell.

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