Distributor used in rectifying tower

Abstract

The utility model discloses a distributor used in a rectifying tower, and belongs to the technical field of liquid treatment in the rectifying tower. A distribution mechanism and a conical baffle plate are respectively arranged in the rectifying tower pipe, and the distribution mechanism is arranged under the conical baffle plate; the distribution mechanism comprises a tray, a large pipe, a plurality of middle pipes and a small pipe, the large pipe, the middle pipes and the small pipe are in threaded connection in the tray, the middle pipes are located between the large pipe and the small pipe, and the middle pipes and the small pipe are circumferentially distributed around the large pipe; the end, located in the tray, of the large pipe is lower than the end, located in the tray, of the middle pipe, and the end, located in the tray, of the middle pipe is lower than the end, located in the tray, of the small pipe. The purpose of shunting is achieved through the distribution mechanism, liquid is distributed into the rectifying tower more evenly, and the wall flow phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of liquid treatment technology in distillation columns, specifically a distributor for use in distillation columns. Background Technology

[0002] During operation, distillation columns are prone to wall flow. This wall flow will flow along the column wall to the bottom of the column, which greatly reduces the liquid reflux on the packing and thus reduces the purity of the product at the top of the column.

[0003] To prevent the liquid from flowing down the wall to the bottom of a small-diameter distillation column, a ring of conical baffles is usually installed inside the column as a liquid collector. The baffles guide the wall flow into the packing below, thereby increasing the liquid flow rate on the packing.

[0004] The current method of using conical baffles for liquid collection can only guide the wall flow to the packing material located in the same position, and cannot distribute it more evenly in the distillation column, thus reducing the overall performance of the distillation column.

[0005] Based on this, this utility model designs a distributor for use inside a distillation column to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a distributor for use in a distillation column to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a distributor for use in a distillation column, comprising: a distillation column tube; a distribution mechanism and a conical baffle are respectively arranged inside the distillation column tube, the distribution mechanism being arranged directly below the conical baffle;

[0008] The distribution mechanism includes a tray, a large tube, a plurality of medium tubes and a small tube respectively threaded into the tray, the plurality of medium tubes being located between the large tube and the small tube, and the plurality of medium tubes and the small tubes being distributed circumferentially around the large tube;

[0009] The end of the large tube located inside the tray is lower than the end of the middle tube, which is also located inside the tray, and the end of the middle tube located inside the tray is lower than the end of the small tube, which is also located inside the tray.

[0010] Preferably, the distribution mechanism further includes multiple pressure plates, which are respectively fixed to the outer wall of the large tube, the middle tube and the small tube located inside the tray. A rubber ring is fixed to the bottom of the pressure plate, and the pressure plate presses the rubber ring against the bottom of the tray.

[0011] Preferably, a support plate is fixed to the inner wall of the distillation column tube, and a connecting plate is fixed to the outer wall of the tray, the connecting plate being inserted into the support plate.

[0012] Preferably, the connecting plate and the support plate are provided with interconnected threaded holes, and the connecting plate and the support plate are locked together by threaded hole connecting bolts.

[0013] Preferably, the conical baffle is fixed to the inner wall of the distillation column tube, and it is a conical funnel-shaped baffle that tapers from top to bottom.

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

[0015] Firstly, the conical baffle provides initial diversion, directing the liquid towards the tray of the distribution mechanism. The liquid in the tray will first pass through the lowest tube bundle and then through the higher tube bundle, thus differentiating the liquid output by the conical baffle and achieving the purpose of diversion. This distributes the liquid more evenly within the distillation column and reduces the occurrence of wall flow.

[0016] Secondly, the distribution mechanism utilizes pressure plates to assist in the installation of large, medium, and small pipes, ensuring that these pipe bundles are securely screwed into place during rotational installation. At the same time, these pressure plates also press the rubber rings against the tray, increasing the sealing of the large, medium, and small pipes during installation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram highlighting the overall structure inside the distillation column tube in this embodiment;

[0019] Figure 2 This is a schematic diagram of the distillation column tube in this embodiment;

[0020] Figure 3 This is a schematic diagram highlighting the tray structure in this embodiment;

[0021] Figure 4 This is a schematic diagram highlighting the tray installation position in this embodiment;

[0022] Figure 5 This is a schematic diagram illustrating the internal structure distribution of the tray in this embodiment.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Distillation column tube; 2. Pallet; 3. Connecting plate; 4. Tray; 5. Main tube; 6. Middle tube; 7. Small tube; 8. Pressure plate; 9. Conical baffle. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a distributor for use in a distillation column, comprising: a distillation column tube 1; a distribution mechanism and a conical baffle 9 are respectively arranged inside the distillation column tube 1, with the distribution mechanism located directly below the conical baffle 9;

[0027] The distribution mechanism includes a tray 4, a large tube 5, multiple medium tubes 6 and a small tube 7 that are threaded into the tray 4 respectively. The multiple medium tubes 6 are located between the large tube 5 and the small tubes 7 respectively, and the multiple medium tubes 6 and the small tubes 7 are distributed in a circle around the large tube 5.

[0028] The end of the large tube 5 located inside the tray 4 is lower than the end of the middle tube 6, which is also located inside the tray 4; the end of the middle tube 6 located inside the tray 4 is lower than the end of the small tube 7, which is also located inside the tray 4.

[0029] When the distillation column 1 is performing distillation, it uses the conical baffle 9 inside to provide initial flow guidance, directing the liquid toward the tray 4 of the distribution mechanism. After entering the tray 4, the liquid will first be output through the lowest-height large pipe 5, then pass through multiple medium pipes 6 that are higher than the large pipe 5, and finally be output through the highest small pipe 7.

[0030] In a further preferred embodiment, the distribution mechanism also includes multiple pressure plates 8, which are respectively fixed to the outer wall of the large tube 5, the middle tube 6 and the small tube 7 located inside the tray 4. A rubber ring is fixed to the bottom of the pressure plate 8, and the pressure plate 8 presses the rubber ring against the inner bottom of the tray 4.

[0031] In the distribution mechanism, pressure plates 8 are used in conjunction with the installation of large tubes 5, medium tubes 6 and small tubes 7, so that these tube bundles can be screwed into place when rotated during installation. At the same time, these pressure plates 8 will also press the rubber rings against the tray 4.

[0032] In a further preferred embodiment, a support plate 2 is fixed to the inner wall of the distillation column tube 1, and a connecting plate 3 is fixed to the outer wall of the tray 4, with the connecting plate 3 being inserted into the support plate 2;

[0033] The tray 2 inside the distillation column tube 1 has an insertion port for the auxiliary tray 4 to be installed. When installing the tray 4, the connecting plate 3 is inserted into the insertion port of the tray 2 for installation.

[0034] More preferably, the connecting plate 3 and the support plate 2 have interconnected threaded holes, and the connecting plate 3 and the support plate 2 are locked together by threaded bolts.

[0035] The connecting plate 3 and the tray 2 are interlocked and locked by bolts through threaded holes, which allows for disassembly and fixation, so that the tray 4 is fixed inside the distillation column tube 1 for diversion operation.

[0036] More preferably, the conical baffle 9 is fixed to the inner wall of the distillation column tube 1, and it is a conical funnel-shaped baffle that tapers from top to bottom;

[0037] The conical baffle is funnel-shaped, guiding the liquid out to tray 4 for diversion processing.

[0038] One specific application of this embodiment is as follows: In the distillation column, the liquid from the conical baffle 9 falls downwards and collects in the tray 4. Since the tray 4 is located directly below the conical baffle 9, and the liquid outlet of the conical baffle 9 is larger than that of the large pipe 5, the liquid will first flow out through the large pipe 5. The remaining liquid will continue to flow out from the middle pipe 6 after it exceeds the opening of the middle pipe 6, which is higher than the large pipe 5. Similarly, when the liquid level reaches the opening of the small pipe 7, the remaining liquid will flow out from the small pipe 7. The flow rate of the tube bundle gradually decreases from the inside to the outside, so that the liquid is more evenly distributed in the distillation column, reducing the occurrence of wall flow phenomenon.

[0039] During operation, the middle tube 6 and the small tube 7 are distributed in a circle around the large tube 5, and the liquid output of the sum of the diameters of all the tubes is equal to the flow rate of the liquid outlet of the conical baffle 9. The vapor generated in the distillation column tube 1 can pass through the tray 4 and the conical baffle 9 from bottom to top, thus achieving gas-liquid separation.

[0040] The large tube 5, medium tube 6, and small tube 7 can all be rotated and disassembled for cleaning, maintenance, and replacement. During installation, the pressure plate 8, together with the rubber ring, can be used for positioning to ensure that the tube bundle is screwed in place. At the same time, the pressure plate 8, with the rubber ring, also increases the sealing of the connection between the tube bundle and the tray 4 to prevent liquid leakage.

[0041] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] 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. A distributor for use in a rectification column, comprising: Rectification tower pipe (1); characterized in that, the rectification tower pipe (1) is provided with distribution mechanism and conical baffle (9) respectively, the distribution mechanism is arranged below the conical baffle (9); The distribution mechanism includes tray (4), large pipe (5), multiple middle pipes (6) and small pipe (7) are respectively connected in the tray (4) by screw thread, multiple middle pipes (6) are respectively located between large pipe (5) and small pipe (7), and multiple middle pipes (6) and small pipe (7) are circumferentially distributed around large pipe (5); One end of the large pipe (5) in the tray (4) is lower than one end of the middle pipe (6) also in the tray (4), and one end of the middle pipe (6) in the tray (4) is lower than one end of the small pipe (7) also in the tray (4).

2. A distributor for use in a distillation column according to claim 1, characterized in that: The distribution mechanism further includes multiple pressing plates (8), the pressing plates (8) are respectively fixed on the outer walls of the large pipe (5), the middle pipe (6) and the small pipe (7) in the tray (4), the bottom of the pressing plate (8) is fixed with rubber ring, and the pressing plate (8) tightly presses the rubber ring against the bottom in the tray (4).

3. A distributor for use in a distillation column according to claim 1, characterized in that: The inner wall of the rectification tower pipe (1) is further fixed with a supporting plate (2), the outer wall of the tray (4) is fixed with a connecting plate (3), and the connecting plate (3) is inserted with the supporting plate (2).

4. A distributor for use in a distillation column according to claim 3, characterized in that: Threaded holes are opened between the connecting plate (3) and the supporting plate (2) and are communicated with each other, and the connecting plate (3) and the supporting plate (2) are locked by connecting bolts through the threaded holes.

5. A distributor for use in a distillation column according to claim 1, characterized in that: The conical baffle (9) is fixed on the inner wall of the rectification tower pipe (1), which is a conical funnel-shaped baffle that is reduced from top to bottom.

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