Integrated condensing reflux produced distillation column

Abstract

The utility model discloses integrated condensing reflux produced rectifying column, including the flow guide tube and condenser who set up by the uppermost tray to the upward in proper order, the condenser is used to carry out condensation to the overhead light component, including the condensing pipe of being internally arranged in rectifying column tower body, and the one side of rectifying column tower body corresponds the light component gas export of condensing pipe, the flow guide tube includes the transverse plate of being connected with rectifying column tower body, the external cylinder that opens on the transverse plate and extends upward, and the built -in cylinder that opens is located external cylinder cylinder wall and extends downward in the built -in cylinder inside, rectifying column tower body is provided with light component liquid outlet in the place of being close to the transverse plate top, the integrated condensing reflux produced rectifying column through the condenser of being built -in in the tower top, and the flow guide tube below, realize gaseous along the cylinder upward through the flow guide tube, after condensing in the tower top, reflux to the cofferdam that the flow guide tube forms in the tower body interior and produces liquid phase, avoids the defect that the structure is complex to the light component of external condenser production liquid phase, reduces the floor area, is applicable to the industrialization and laboratory popularization.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, specifically an integrated condensation reflux distillation column. Background Technology

[0002] Distillation is a separation technology widely used in chemical, pharmaceutical, and petroleum refining industries. Its core principle is to separate components in a mixture by utilizing the differences in their boiling points through multiple partial vaporization and condensation processes. However, traditional distillation columns suffer from common problems such as complex equipment design and large footprint.

[0003] Traditional distillation columns typically have external condensers and pipelines at the top for the extraction and reflux of light components. Due to the independent setup of the condenser, the components need to be connected by pipelines, resulting in a complex system structure and occupying a lot of space, which is particularly unfavorable for small and medium-sized chemical plants or laboratory applications.

[0004] Therefore, it is necessary to design an integrated condenser reflux distillation column to reduce the structural complexity of the distillation column and reduce its footprint. Utility Model Content

[0005] This invention provides an integrated condensation reflux distillation column, which reduces the structural complexity of the distillation column and reduces the floor space required.

[0006] In view of the above, the solution of this utility model is as follows: An integrated reflux distillation column includes a guide tube and a condenser arranged sequentially upwards from the top tray; the condenser is used to condense the light components at the top of the column and includes a condenser tube installed inside the distillation column body; a light component gas outlet is provided on one side of the distillation column body corresponding to the condenser tube; the guide tube includes a horizontal plate connected to the distillation column body, an outer cylinder with an opening on the horizontal plate extending upwards, and an inner cylinder with an opening located on the outer cylinder wall and extending downwards inside the outer cylinder; a light component liquid outlet is provided on the distillation column body near the top of the horizontal plate.

[0007] Furthermore, the condenser tube is serpentine or U-shaped.

[0008] Furthermore, a reboiler chamber is provided below the stripping section of the distillation column, and a liquid outlet pipe and a reboiler pipe are provided at the bottom of the stripping section. The reboiler pipe extends downward into the reboiler chamber and extends along the outside. The stripping section is provided with a reboiler feed pipe near the bottom, which is connected to the reboiler pipe.

[0009] Preferably, the reboiler feed pipe extends radially into the tower, with a sealing plate at the end and a downward opening in the extension section.

[0010] Preferably, the stripping section is provided with a mixed feed inlet located above the reboiler feed pipe.

[0011] Preferably, the stripping section is provided with a liquid feed inlet located below the reboiler feed pipe.

[0012] Furthermore, the distillation column is provided with a gaseous feed inlet in the distillation section.

[0013] Furthermore, the distillation column is equipped with instrument ports in both the rectification section and the stripping section.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The integrated condenser-reflux distillation column provided by this utility model uses a condenser built into the top of the column and a guide tube below. The gaseous phase rises upwards along the inside of the tube, condenses at the top of the column, and then flows back to the dam formed inside the column by the guide tube to collect the liquid phase. This avoids the structural defects caused by the light components of the liquid phase collected by the external condenser, reduces the footprint, and is suitable for industrial and laboratory applications. Attached Figure Description

[0015] Figure 1 This is a radial cross-sectional view of the integrated condenser reflux distillation column of this utility model (the column is truncated due to its excessive length).

[0016] Figure 2 This is a schematic diagram of the radial cross-sectional structure of the guide tube described in this utility model.

[0017] Figure 3 This is a schematic diagram of the reboiling feed pipe structure described in this utility model.

[0018] The attached figures are labeled as follows: C1, Condenser; G1, Flow guide tube; H1, Reboiler; 1, Horizontal plate; 2, External cylinder; 3, Internal cylinder; 11, Light component liquid outlet; 12, Light component gas outlet; 21, Reboiler tube; 22, Liquid outlet tube; 23, Reboiler feed tube; 31, Medium feed tube; 32, Medium outlet tube; 100, Gaseous feed inlet; 200, Mixed feed inlet; 300, Liquid feed inlet; 231, Sealing plate; 232, Opening. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described in conjunction with preferred embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1-3As shown, in one embodiment, an integrated reflux distillation column is provided, including a guide tube G1 and a condenser C1 arranged sequentially upwards from the uppermost tray; the condenser C1 condenses the light components at the top of the column through a tube side, including condenser tubes internally disposed within the distillation column body; a light component gas outlet 12 is provided on one side of the distillation column body corresponding to the condenser tubes. Figure 2 As shown, the guide tube G1 includes a horizontal plate 1 connected to the distillation column body, an outer cylinder 2 with an opening on the horizontal plate 1 and extending upward, and an inner cylinder 3 with an opening located on the wall of the outer cylinder 2 and extending downward inside the outer cylinder 2; the distillation column body is provided with a light component outlet 11 near the top of the horizontal plate 1.

[0021] In the above embodiment, a condenser C1 is installed at the top of the distillation column, with its tube side extending into the uppermost rectification section. A guide tube is installed below it, allowing the gaseous phase to enter the condenser C1 upwards along the tube and form a shell side with the column wall to condense the gaseous light components. After condensation, the gaseous phase flows back to the weir formed inside the column by the guide tube and is collected from the light component outlet 11. This avoids the structural complexity caused by an external condenser and reduces the floor space required.

[0022] It is understood that the aforementioned condenser C1 also includes a medium feed pipe 31 and a medium discharge pipe 32, which are used to supply and circulate the condensing medium to the condenser. Specifically, this can be achieved by setting a head at the top of the tower and isolating the feed end and the discharge end.

[0023] In a preferred embodiment, the condenser tube is serpentine or U-shaped, preferably one or more U-shaped tubes, with one end connected to the medium inlet pipe 31 and the other end connected to the medium outlet pipe 32.

[0024] In a preferred embodiment, to further reduce the structural complexity of the distillation column and decrease its footprint, the reboiler can be internally integrated. Specifically, a reboiler chamber H1 is provided below the stripping section of the distillation column. The bottom of the stripping section is provided with a liquid outlet pipe 22 and a reboiler pipe 21. The reboiler pipe 21 extends downwards into the reboiler chamber H1 and extends outwards. The stripping section is provided with a reboiler feed pipe 23 near the bottom, which is connected to the reboiler pipe 21. Preferably, as follows... Figure 3 As shown, the reboiler feed pipe 23 extends radially into the tower, with a sealing plate 231 at the end and a downward opening 232 in the extension section.

[0025] It is understood that the reboiling chamber H1 is used to connect the heating medium for further heating of the liquid material in the bottom of the column. The reboiling chamber H1 is also equipped with a medium pipeline (not shown in the figure), and the reboiling pipe 21 can return to the top for feeding after heat exchange through the reboiling chamber H1.

[0026] In a preferred embodiment, the stripping section is provided with a mixed feed inlet 200, located above the reboiler feed pipe 23, for feeding a gas-liquid mixed feedstock to improve separation efficiency. The stripping section is provided with a liquid feed inlet 300, located below the reboiler feed pipe 23. The rectification column is provided with a gas feed inlet 100 in the rectification section, which can be connected to the light component gas outlet 12 for circulating rectification of the light component collected from the top of the column to improve purity.

[0027] It is understood that in the above embodiments, the rectification section refers to the region where the concentration of light components increases stepwise along the height of the column as the gas phase rises, and the stripping section is the region where heavy components are stripped as the liquid phase descends.

[0028] In a preferred embodiment, the distillation column is equipped with instrument ports in both the rectification section and the stripping section. Optional instruments include, but are not limited to, pressure gauges, thermometers, etc., to facilitate observation and control of the distillation column's operating status.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated condenser-reflux distillation column, characterized in that, The distillation column includes a guide tube (G1) and a condenser (C1) arranged sequentially upwards from the top plate. The condenser (C1) is used to condense the light components at the top of the column and includes a condenser tube installed inside the distillation column body. A light component gas outlet (12) is provided on one side of the distillation column body corresponding to the condenser tube. The guide tube (G1) includes a horizontal plate (1) connected to the distillation column body, an outer cylinder (2) with an opening on the horizontal plate (1) and extending upwards, and an inner cylinder (3) with an opening located on the wall of the outer cylinder (2) and extending downwards inside the outer cylinder (2). A light component liquid outlet (11) is provided on the distillation column body near the top of the horizontal plate (1).

2. The integrated condensate reflux distillation column according to claim 1, characterized in that, The condenser tube is either serpentine or U-shaped.

3. The integrated condensate reflux distillation column according to claim 1, characterized in that, The distillation column has a reboil chamber (H1) below the stripping section. The bottom of the stripping section is provided with a liquid outlet pipe (22) and a reboiler pipe (21). The reboiler pipe (21) extends downward into the reboiler chamber (H1) and extends along the outside. The stripping section is provided with a reboiler feed pipe (23) near the bottom, which is connected to the reboiler pipe (21).

4. The integrated condensate reflux distillation column according to claim 3, characterized in that, The reboiler feed pipe (23) extends radially into the tower, with a sealing plate (231) at the end and a downward opening (232) in the extension section.

5. The integrated condensate reflux distillation column according to claim 3 or 4, characterized in that, The stripping section is provided with a mixed feed inlet (200) located above the reboiler feed pipe (23).

6. The integrated condenser-reflux distillation column according to claim 3 or 4, characterized in that, The stripping section is provided with a liquid feed inlet (300), located below the reboiler feed pipe (23).

7. The integrated condensate reflux distillation column according to claim 1, characterized in that, The distillation column is equipped with a gaseous feed inlet (100) in the distillation section.

8. The integrated condensate reflux distillation column according to claim 1, characterized in that, The distillation column is equipped with instrument ports in both the rectification section and the stripping section.

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