High-boiling-point aromatic hydrocarbon fractionating tower device with self-cleaning function

Abstract

The utility model relates to the technical field of chemical production equipment, and discloses a high-boiling-point aromatic hydrocarbon fractionating tower device with a self-cleaning function, which comprises a shunting tower main body, cleaning and draining mechanisms are arranged at the upper end and the lower end of the shunting tower main body, the shunting tower main body comprises a tower body, and a first assembly hole is formed in the center of the top end of the tower body; a plurality of second assembly holes are formed in the periphery of the top end of the tower body at equal angles, and four drain outlets are formed in the periphery of the inner bottom wall of the tower body at equal angles. According to the utility model, the design of a spraying mechanism for optimizing cleaning liquid is adopted, the annular high-pressure spraying machine is arranged at the top end of the tower body, the plurality of high-pressure nozzles are annularly arranged at the bottom end of the tower body at equal angles, and the number and the distribution density of the nozzles are increased, so that multi-directional spraying is realized, the cleaning liquid can reach each corner in the tower, and the cleaning effect is enhanced; in addition, four sewage draining outlets are annularly formed in the bottom end of the tower body at equal angles, so that waste water and waste can be quickly discharged after cleaning, and convenience is achieved.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, specifically to a high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function. Background Technology

[0002] A fractionation tower is a chemical equipment used to separate components with different boiling points in a mixture. It is widely used in industries such as petroleum refining, chemical industry, and pharmaceutical industry. It includes the tower body, which is the main structure of the fractionation tower. It is usually cylindrical and made of materials such as carbon steel and stainless steel. It has a certain height and diameter to provide sufficient space for gas-liquid separation.

[0003] The existing high-boiling-point aromatics fractionation tower equipment still has the following problems when in use: namely, it has certain defects in cleaning effect. When cleaning, the cleaning fluid may not be able to completely cover all the parts in the fractionation tower that need to be cleaned, especially some complex structures and corners, resulting in incomplete cleaning and residual dirt. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function, comprising a fractionation tower body, wherein cleaning and drainage mechanisms are configured at both the upper and lower ends of the fractionation tower body, the fractionation tower body includes a tower body, a first assembly hole is provided at the center of the top of the tower body, a plurality of second assembly holes are provided at equal angles on the outer periphery of the top of the tower body, and four drain ports are provided at equal angles on the outer periphery of the bottom wall of the tower body, each drain port is fixedly installed with a guide pipe, and a control valve is fixedly installed at the opening at the bottom of the guide pipe, the cleaning and drainage mechanism includes an annular high-pressure sprayer located directly above the tower body, an inlet pipe is fixedly connected to the rear feed end of the annular high-pressure sprayer, and a plurality of high-pressure nozzles at the bottom discharge end of the annular high-pressure sprayer are correspondingly fixedly installed in the plurality of second assembly holes.

[0008] As a further embodiment of this utility model: a set of tower plates is fixedly connected to the middle of the inner side wall of the tower body. The set of tower plates consists of three plates arranged equidistantly from top to bottom. Each tower plate is a sieve plate. A feed inlet matching the three tower plates is opened at the middle of the front end of the tower body.

[0009] As a further embodiment of this utility model: four supports are fixedly connected at equal angles at the bottom of the tower body, a reflux port is opened at the lower rear end of the tower body, a reflux pump is fixedly installed in the reflux port, the front end of the reflux pump is the liquid outlet, and a reflux pipe is fixedly connected to the discharge port above the reflux pump. The end of the reflux pipe away from the reflux pump is fixedly connected to the first assembly hole. An installation groove is opened at the center of the bottom wall of the tower body, and a reboiler is fixedly installed in the installation groove.

[0010] As a further embodiment of this utility model: a hinge is fixedly installed on one side of the feed inlet opening, and a sealing door is fixedly connected to the rotating end of the hinge. The sealing door closes the feed inlet opening, and a handle is fixedly connected to the front end of the sealing door away from the hinge.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by adopting an optimized spraying mechanism design for the cleaning liquid, a ring-shaped high-pressure sprayer is installed at the top of the tower body, and multiple high-pressure nozzles are arranged in a ring at equal angles at the bottom. By increasing the number and distribution density of the nozzles, multi-directional spraying is achieved, ensuring that the cleaning liquid can reach every corner of the tower and enhancing the cleaning effect. In addition, four drain ports are also opened in a ring at equal angles at the bottom of the tower body, which facilitates the rapid discharge of wastewater and waste after cleaning, making it more convenient.

[0013] 2. In this utility model, the tower plate adopts a multi-layer structure design, which is a sieve plate. The multi-layer sieve plate structure allows the gas and liquid phases to fully contact on the tower plate, and carry out mass and heat transfer processes. It can provide a larger gas-liquid contact area and improve separation efficiency. At the same time, its feed port is designed with a large side opening structure, which is conducive to introducing the mixture to be separated into the fractionation tower. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the main body of the diversion tower of this utility model;

[0017] Figure 4 This is a perspective view of the cleaning and drainage mechanism of this utility model.

[0018] In the diagram: 1. Main body of the diversion tower; 2. Cleaning and draining mechanism; 3. Sealing door; 4. Handle; 11. Tower body; 12. First assembly hole; 13. Second assembly hole; 14. Mounting groove; 15. Drain outlet; 16. Feed inlet; 17. Reflux outlet; 18. Support; 19. Tower plate; 110. Reboiler; 111. Reflux pump; 112. Reflux pipe; 113. Hinge; 21. Annular high-pressure sprayer; 22. Liquid inlet pipe; 23. Guide pipe; 24. Control valve. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the invention, a high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function includes a main body 1 of the fractionation tower. The main body 1 has cleaning and drainage mechanisms 2 at both its upper and lower ends. The main body 1 includes a tower body 11. A first assembly hole 12 is provided at the center of the top of the tower body 11. Multiple second assembly holes 13 are provided at equal angles around the top of the tower body 11. Four drain ports 15 are provided at equal angles around the bottom wall of the inner wall of the tower body 11. A guide pipe 23 is fixedly installed in each drain port 15. A control valve 24 is fixedly installed at the opening at the bottom of the guide pipe 23. The cleaning and drainage mechanism 2 includes an annular high-pressure sprayer 2 positioned directly above the tower body 11. 1. The rear feed end of the annular high-pressure sprayer 21 is fixedly connected to the liquid inlet pipe 22. Multiple high-pressure nozzles at the bottom discharge end of the annular high-pressure sprayer 21 are fixedly installed in multiple second assembly holes 13. The whole adopts an optimized spraying mechanism design for cleaning liquid. The annular high-pressure sprayer 21 is set at the top of the tower body 11, and multiple high-pressure nozzles are set at the bottom of the tower body at equal angles. By increasing the number and distribution density of the nozzles, multi-directional spraying is achieved, ensuring that the cleaning liquid can reach every corner of the tower and enhance the cleaning effect. In addition, four drain ports 15 are also opened at the bottom of the tower body 11 at equal angles, which facilitates the rapid discharge of wastewater and waste after cleaning.

[0023] A set of trays 19 is fixedly connected to the middle of the inner wall of the column body 11. There are three trays 19 arranged equidistantly from top to bottom. Each tray 19 is a sieve plate. The front middle of the column body 11 has a feed inlet 16 that matches the three trays 19. The trays 19 adopt a multi-layer structure design and are sieve plates. The multi-layer sieve plate structure allows the gas and liquid phases to fully contact on the trays 19 to carry out mass and heat transfer processes, which can provide a larger gas-liquid contact area and improve separation efficiency. At the same time, the feed inlet 16 is designed with a large side opening structure, which is conducive to introducing the mixture to be separated into the fractionation column.

[0024] The bottom of the column body 11 is fixedly connected to four supports 18 at equal angles for supporting the column body 11. A reflux port 17 is opened at the lower rear end of the column body 11, and a reflux pump 111 is fixedly installed in the reflux port 17. The front end of the reflux pump 111 is the liquid outlet, and the discharge port above the reflux pump 111 is fixedly connected to a reflux pipe 112. The end of the reflux pipe 112 away from the reflux pump 111 is fixedly connected to the first assembly hole 12. The reflux pump 111 is used to collect part of the liquid distilled from the top of the column and send it back to the bottom of the column to provide liquid phase reflux in the column and ensure the stable operation of the fractionation process. An installation groove 14 is opened at the center of the bottom wall of the column body 11, and a reboiler 110 is fixedly installed in the installation groove 14. The reboiler 110 can vaporize part of the liquid at the bottom of the column to generate rising steam, which provides gas phase power for the fractionation column, so that the gas and liquid phases can continuously transfer mass and heat in the column.

[0025] A hinge 113 is fixedly installed on one side of the opening of the feed inlet 16. A sealing door 3 is fixedly connected to the rotating end of the hinge 113. The sealing door 3 closes the opening of the feed inlet 16. A handle 4 is fixedly connected to the front end of the sealing door 3 away from the hinge 113. The sealing door 3 can be rotated by holding the handle 4, so as to conveniently close or open the feed inlet 16.

[0026] The working principle of this utility model is as follows: the reboiler 110 can partially vaporize the liquid at the bottom of the column to generate rising steam, which provides gas phase power for the fractionation column, enabling the gas and liquid phases to continuously transfer mass and heat within the column. The reflux pump 111 is used to collect part of the liquid distilled from the top of the column and send it back to the bottom of the column to provide liquid phase reflux within the column, ensuring the stable operation of the fractionation process. By utilizing the different boiling points of the components in the mixture, through multiple partial vaporization and partial condensation, the gas and liquid phases can fully transfer mass and heat within the column, thereby achieving the separation of the components. That is, when the heated mixture enters the fractionation column from the feed inlet 16, it flows downward under the action of gravity and comes into contact with the rising steam on the tray 19. When the high-boiling-point components in the vapor are cooled, they partially condense into liquid, while the low-boiling-point components in the liquid partially vaporize and enter the gas phase. After multiple such gas-liquid exchange processes, the low-boiling-point components gradually move upward and are enriched at the top of the column, while the high-boiling-point components move downward and are enriched at the bottom of the column, thus achieving the separation of the mixture and completing the fractionation of high-boiling-point aromatics.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function, comprising a main body of the fractionation tower (1), wherein the main body of the fractionation tower (1) is equipped with a cleaning and drainage mechanism (2) at both the upper and lower ends; Its features are: The main body (1) of the diversion tower includes a tower body (11), a first assembly hole (12) is provided at the center of the top of the tower body (11), a plurality of second assembly holes (13) are provided at equal angles on the outer periphery of the top of the tower body (11), and four sewage outlets (15) are provided at equal angles on the outer periphery of the inner bottom wall of the tower body (11). The cleaning and draining mechanism (2) includes an annular high-pressure sprayer (21) located directly above the tower body (11). The feed end of the annular high-pressure sprayer (21) is fixedly connected to a liquid inlet pipe (22). Multiple high-pressure nozzles at the bottom discharge end of the annular high-pressure sprayer (21) are correspondingly fixedly installed in multiple second assembly holes (13). A set of tower plates (19) is fixedly connected to the middle of the inner side wall of the tower body (11). The set of tower plates (19) consists of three plates, which are arranged equidistantly from top to bottom. Each tower plate (19) is a sieve plate. The front end of the tower body (11) is provided with a feed inlet (16) that matches the three tower plates (19).

2. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 1, characterized in that: The bottom of the tower body (11) is fixedly connected with four supports (18) at equal angles, and a return port (17) is opened below the rear end of the tower body (11).

3. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 2, characterized in that: A reflux pump (111) is fixedly installed inside the reflux port (17). The front end of the reflux pump (111) is a liquid outlet, and a reflux pipe (112) is fixedly connected to the discharge port above the reflux pump (111). The end of the reflux pipe (112) away from the reflux pump (111) is fixedly connected to the first assembly hole (12).

4. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 1, characterized in that: An installation groove (14) is provided at the center of the bottom wall of the tower body (11), and a reboiler (110) is fixedly installed in the installation groove (14).

5. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 1, characterized in that: A hinge (113) is fixedly installed on one side of the opening of the feed inlet (16), and a sealing door (3) is fixedly connected to the rotating end of the hinge (113).

6. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 5, characterized in that: The sealing door (3) closes the opening of the feed inlet (16), and a handle (4) is fixedly connected to the front end of the sealing door (3) away from the hinge (113).

7. The high-boiling-point aromatic hydrocarbon fractionation tower device with self-cleaning function according to claim 1, characterized in that: Each of the drain outlets (15) is fixedly installed with a guide pipe (23), and a control valve (24) is fixedly installed at the opening at the bottom of the guide pipe (23).

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